Merge branch 'release-2.1.1'

Magnets with trackers specified with tr.x param were not being unquoted
so unusable raw tracker string was being set.

Fixed by unquoting tracker and adding test

See-also: https://dev.deluge-torrent.org/ticket/2716

.gitattributes

@@ -0,0 +1,6 @@
+.gitattributes export-ignore
+.gitmodules export-ignore
+.gitignore export-ignore
+*.py diff=python
+ext-all.js diff=minjs
+*.state -merge -text

.github/workflows/cd.yml

@@ -0,0 +1,100 @@
+name: Package
+
+on:
+  push:
+    tags:
+      - "deluge-*"
+      - "!deluge*-dev*"
+    branches:
+      - develop
+  pull_request:
+    types: [labeled, opened, synchronize, reopened]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+    inputs:
+      ref:
+        description: "Enter a tag or commit to package"
+        default: ""
+
+jobs:
+  windows_package:
+    runs-on: windows-2019
+    if: (github.event_name != 'pull_request' || contains(github.event.pull_request.labels.*.name, 'package'))
+    strategy:
+      matrix:
+        arch: [x64, x86]
+        python: ["3.9"]
+        libtorrent: [2.0.6, 1.2.15]
+
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      # Checkout Deluge source to subdir to enable packaging any tag/commit
+      - name: Checkout Deluge source
+        uses: actions/checkout@v3
+        with:
+          ref: ${{ github.event.inputs.ref }}
+          fetch-depth: 0
+          path: deluge_src
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python}}
+          architecture: ${{ matrix.arch }}
+          cache: pip
+
+      - name: Prepare pip
+        run: python -m pip install wheel
+
+      - name: Install GTK
+        run: |
+          $WebClient = New-Object System.Net.WebClient
+          $WebClient.DownloadFile("https://github.com/deluge-torrent/gvsbuild-release/releases/download/latest/gvsbuild-py${{ matrix.python }}-vs16-${{ matrix.arch }}.zip","C:\GTK.zip")
+          7z x C:\GTK.zip -oc:\GTK
+          echo "C:\GTK\release\lib" | Out-File -FilePath $env:GITHUB_PATH -Append
+          echo "C:\GTK\release\bin" | Out-File -FilePath $env:GITHUB_PATH -Append
+          echo "C:\GTK\release" | Out-File -FilePath $env:GITHUB_PATH -Append
+          python -m pip install --no-index --find-links="C:\GTK\release\python" pycairo PyGObject
+
+      - name: Install Python dependencies
+        run: >
+          python -m pip install
+          twisted[tls]==22.4.0
+          libtorrent==${{ matrix.libtorrent }}
+          pyinstaller==4.10
+          pygame
+          -r requirements.txt
+
+      - name: Install Deluge
+        working-directory: deluge_src
+        run: |
+          python -m pip install .
+          python setup.py install_scripts
+
+      - name: Freeze Deluge
+        working-directory: packaging/win
+        run: |
+          pyinstaller --clean delugewin.spec --distpath freeze
+
+      - name: Fix OpenSSL for libtorrent x64
+        if: ${{ matrix.arch == 'x64' }}
+        working-directory: packaging/win/freeze/Deluge
+        run: |
+          cp libssl-1_1.dll libssl-1_1-x64.dll
+          cp libcrypto-1_1.dll libcrypto-1_1-x64.dll
+
+      - name: Make Deluge Installer
+        working-directory: ./packaging/win
+        run: |
+          python setup_nsis.py
+          makensis /Darch=${{ matrix.arch }} deluge-win-installer.nsi
+
+      - uses: actions/upload-artifact@v2
+        with:
+          name: deluge-py${{ matrix.python }}-lt${{ matrix.libtorrent }}-${{ matrix.arch }}
+          path: packaging/win/*.exe

.github/workflows/ci.yml

@@ -0,0 +1,95 @@
+name: CI
+
+on:
+  push:
+  pull_request:
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  test-linux:
+    runs-on: ubuntu-20.04
+    strategy:
+      matrix:
+        python-version: ["3.7", "3.10"]
+
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: "pip"
+          cache-dependency-path: "requirements*.txt"
+
+      - name: Sets env var for security
+        if: (github.event_name == 'pull_request' && contains(github.event.pull_request.body, 'security_test')) || (github.event_name == 'push' && contains(github.event.head_commit.message, 'security_test'))
+        run: echo "SECURITY_TESTS=True" >> $GITHUB_ENV
+
+      - name: Install dependencies
+        run: |
+          pip install --upgrade pip wheel
+          pip install -r requirements.txt -r requirements-tests.txt
+          pip install -e .
+
+      - name: Install security dependencies
+        if: contains(env.SECURITY_TESTS, 'True')
+        run: |
+          wget -O- $TESTSSL_URL$TESTSSL_VER | tar xz
+          mv -t deluge/tests/data testssl.sh-$TESTSSL_VER/testssl.sh testssl.sh-$TESTSSL_VER/etc/;
+        env:
+          TESTSSL_VER: 3.0.6
+          TESTSSL_URL: https://codeload.github.com/drwetter/testssl.sh/tar.gz/refs/tags/v
+
+      - name: Setup core dump directory
+        run: |
+          sudo mkdir /cores/ && sudo chmod 777 /cores/
+          echo "/cores/%E.%p" | sudo tee /proc/sys/kernel/core_pattern
+
+      - name: Test with pytest
+        run: |
+          ulimit -c unlimited  # Enable core dumps to be captured
+          python -c 'from deluge._libtorrent import lt; print(lt.__version__)';
+          catchsegv python -X dev -m pytest -v -m "not (todo or gtkui)" deluge
+
+      - uses: actions/upload-artifact@v2
+        # capture all crashes as build artifacts
+        if: failure()
+        with:
+          name: crashes
+          path: /cores
+
+  test-windows:
+    runs-on: windows-2019
+    strategy:
+      matrix:
+        python-version: ["3.7", "3.10"]
+
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: "pip"
+          cache-dependency-path: "requirements*.txt"
+
+      - name: Install dependencies
+        run: |
+          pip install --upgrade pip wheel
+          pip install -r requirements.txt -r requirements-tests.txt
+          pip install -e .
+
+      - name: Test with pytest
+        run: |
+          python -c 'import libtorrent as lt; print(lt.__version__)';
+          pytest -v -m "not (todo or gtkui or security)" deluge

.github/workflows/docs.yml

@@ -0,0 +1,45 @@
+name: Docs
+
+# Controls when the action will run.
+on:
+  # Triggers the workflow on push or pull request events but only for the main branch
+  push:
+  pull_request:
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - uses: actions/setup-python@v2
+        with:
+          python-version: "3.8"
+      - name: Cache pip
+        uses: actions/cache@v2
+        with:
+          # This path is specific to Ubuntu
+          path: ~/.cache/pip
+          # Look to see if there is a cache hit for the corresponding requirements file
+          key: ${{ runner.os }}-pip-${{ hashFiles('requirements*.txt') }}
+          restore-keys: |
+            ${{ runner.os }}-pip-
+            ${{ runner.os }}-
+
+      - name: Install dependencies
+        run: |
+          pip install --upgrade pip wheel
+          pip install tox
+          sudo apt-get install enchant
+
+      - name: Test with tox
+        env:
+          TOX_ENV: docs
+        run: |
+          tox -e $TOX_ENV

.github/workflows/lint.yml

@@ -0,0 +1,17 @@
+name: Linting
+
+on:
+  push:
+  pull_request:
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+      - name: Run pre-commit linting
+        uses: pre-commit/action@v2.0.2

.gitignore

@@ -0,0 +1,25 @@
+*~
+build
+.cache
+dist
+docs/source/modules/deluge*.rst
+*.egg-info/
+*.dist-info/
+*.egg
+*.log
+__pycache__/
+*.py[cod]
+*.tar.*
+.tox/
+deluge/i18n/*/
+deluge.pot
+deluge/ui/web/js/*.js
+deluge/ui/web/js/extjs/ext-extensions*.js
+*.desktop
+*.appdata.xml
+.build_data*
+osx/app
+RELEASE-VERSION
+.venv*
+# used by setuptools to cache downloaded eggs
+/.eggs

.pre-commit-config.yaml

@@ -0,0 +1,51 @@
+default_language_version:
+  python: python3
+exclude: >
+  (?x)^(
+      deluge/ui/web/docs/template/.*|
+      deluge/tests/data/.*svg|
+  )$
+repos:
+  - repo: https://github.com/psf/black
+    rev: 22.3.0
+    hooks:
+      - id: black
+        name: Fmt Black
+  - repo: https://github.com/pre-commit/mirrors-prettier
+    rev: v2.5.1
+    hooks:
+      - id: prettier
+        name: Fmt Prettier
+        # Workaround to list modified files only.
+        args: [--list-different]
+  - repo: https://github.com/pycqa/isort
+    rev: 5.10.1
+    hooks:
+      - id: isort
+        name: Fmt isort
+  - repo: https://github.com/pycqa/flake8
+    rev: 4.0.1
+    hooks:
+      - id: flake8
+        name: Chk Flake8
+        additional_dependencies:
+          - pep8-naming==0.12.1
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.1.0
+    hooks:
+      - id: double-quote-string-fixer
+        name: Fix Double-quotes
+      - id: end-of-file-fixer
+        name: Fix End-of-files
+        exclude_types: [javascript, css]
+      - id: mixed-line-ending
+        name: Fix Line endings
+        args: [--fix=auto]
+      - id: trailing-whitespace
+        name: Fix Trailing whitespace
+  - repo: https://github.com/asottile/pyupgrade
+    rev: v2.31.0
+    hooks:
+      - id: pyupgrade
+        args: [--py36-plus]
+        stages: [manual]

.prettierignore

@@ -0,0 +1,6 @@
+deluge/ui/web/css/ext-*.css
+deluge/ui/web/js/extjs/ext-*.js
+deluge/ui/web/docs/
+deluge/ui/web/themes/images/
+*.py*
+*.html

.prettierrc.yaml

@@ -0,0 +1,13 @@
+trailingComma: "es5"
+tabWidth: 4
+singleQuote: true
+overrides:
+  - files:
+      - "*.yaml"
+      - ".*.yaml"
+      - "*.yml"
+      - ".*.yml"
+      - "*.md"
+    options:
+      tabWidth: 2
+      singleQuote: false

.pylintrc

@@ -0,0 +1,420 @@
+[MASTER]
+
+# Specify a configuration file.
+#rcfile=
+
+# Python code to execute, usually for sys.path manipulation such as
+# pygtk.require().
+#init-hook=
+
+# Add files or directories to the blacklist. They should be base names, not
+# paths.
+ignore=CVS
+
+# Add files or directories matching the regex patterns to the blacklist. The
+# regex matches against base names, not paths.
+ignore-patterns=
+
+# Pickle collected data for later comparisons.
+persistent=yes
+
+# List of plugins (as comma separated values of python modules names) to load,
+# usually to register additional checkers.
+load-plugins=
+
+# Use multiple processes to speed up Pylint.
+jobs=2
+
+# Allow loading of arbitrary C extensions. Extensions are imported into the
+# active Python interpreter and may run arbitrary code.
+unsafe-load-any-extension=no
+
+# A comma-separated list of package or module names from where C extensions may
+# be loaded. Extensions are loading into the active Python interpreter and may
+# run arbitrary code
+extension-pkg-whitelist=
+
+# Allow optimization of some AST trees. This will activate a peephole AST
+# optimizer, which will apply various small optimizations. For instance, it can
+# be used to obtain the result of joining multiple strings with the addition
+# operator. Joining a lot of strings can lead to a maximum recursion error in
+# Pylint and this flag can prevent that. It has one side effect, the resulting
+# AST will be different than the one from reality. This option is deprecated
+# and it will be removed in Pylint 2.0.
+optimize-ast=no
+
+
+[MESSAGES CONTROL]
+
+# Only show warnings with the listed confidence levels. Leave empty to show
+# all. Valid levels: HIGH, INFERENCE, INFERENCE_FAILURE, UNDEFINED
+confidence=
+
+# Enable the message, report, category or checker with the given id(s). You can
+# either give multiple identifier separated by comma (,) or put this option
+# multiple time (only on the command line, not in the configuration file where
+# it should appear only once). See also the "--disable" option for examples.
+#enable=
+
+# Disable the message, report, category or checker with the given id(s). You
+# can either give multiple identifiers separated by comma (,) or put this
+# option multiple times (only on the command line, not in the configuration
+# file where it should appear only once).You can also use "--disable=all" to
+# disable everything first and then reenable specific checks. For example, if
+# you want to run only the similarities checker, you can use "--disable=all
+# --enable=similarities". If you want to run only the classes checker, but have
+# no Warning level messages displayed, use"--disable=all --enable=classes
+# --disable=W"
+#
+# Arranged by category and use symbolic names instead of ids.
+disable=
+# Convention
+    missing-docstring, invalid-name, bad-continuation,
+# Error
+    no-member, no-name-in-module,
+# Information
+    locally-disabled,
+# Refactor
+    no-self-use, too-many-arguments, too-many-branches, too-many-instance-attributes,
+    too-many-locals, too-few-public-methods, too-many-public-methods, too-many-statements,
+# Refactor msgs that should eventually be enabled:
+    redefined-variable-type, too-many-ancestors,
+    too-many-nested-blocks, too-many-return-statements,
+# Warning
+    unused-argument, protected-access, import-error, unused-variable,
+    attribute-defined-outside-init,
+# Warning msgs that should eventually be enabled:
+    arguments-differ, global-statement, fixme, broad-except
+
+[REPORTS]
+
+# Set the output format. Available formats are text, parseable, colorized, msvs
+# (visual studio) and html. You can also give a reporter class, eg
+# mypackage.mymodule.MyReporterClass.
+output-format=parseable
+
+# Put messages in a separate file for each module / package specified on the
+# command line instead of printing them on stdout. Reports (if any) will be
+# written in a file name "pylint_global.[txt|html]". This option is deprecated
+# and it will be removed in Pylint 2.0.
+files-output=no
+
+# Tells whether to display a full report or only the messages
+reports=no
+
+# Python expression which should return a note less than 10 (10 is the highest
+# note). You have access to the variables errors warning, statement which
+# respectively contain the number of errors / warnings messages and the total
+# number of statements analyzed. This is used by the global evaluation report
+# (RP0004).
+evaluation=10.0 - ((float(5 * error + warning + refactor + convention) / statement) * 10)
+
+# Template used to display messages. This is a python new-style format string
+# used to format the message information. See doc for all details
+#msg-template=
+
+
+[SPELLING]
+
+# Spelling dictionary name. Available dictionaries: none. To make it working
+# install python-enchant package.
+spelling-dict=
+
+# List of comma separated words that should not be checked.
+spelling-ignore-words=
+
+# A path to a file that contains private dictionary; one word per line.
+spelling-private-dict-file=
+
+# Tells whether to store unknown words to indicated private dictionary in
+# --spelling-private-dict-file option instead of raising a message.
+spelling-store-unknown-words=no
+
+
+[BASIC]
+
+# Good variable names which should always be accepted, separated by a comma
+good-names=d,i,j,k,ex,Run,_,log
+
+# Bad variable names which should always be refused, separated by a comma
+bad-names=foo,bar,baz,toto,tutu,tata
+
+# Colon-delimited sets of names that determine each other's naming style when
+# the name regexes allow several styles.
+name-group=
+
+# Include a hint for the correct naming format with invalid-name
+include-naming-hint=no
+
+# List of decorators that produce properties, such as abc.abstractproperty. Add
+# to this list to register other decorators that produce valid properties.
+property-classes=abc.abstractproperty
+
+# Regular expression matching correct function names
+function-rgx=[a-z_][a-z0-9_]{2,30}$
+
+# Naming hint for function names
+function-name-hint=[a-z_][a-z0-9_]{2,30}$
+
+# Regular expression matching correct variable names
+variable-rgx=[a-z_][a-z0-9_]{2,30}$
+
+# Naming hint for variable names
+variable-name-hint=[a-z_][a-z0-9_]{2,30}$
+
+# Regular expression matching correct constant names
+const-rgx=(([A-Z_][A-Z0-9_]*)|(__.*__))$
+
+# Naming hint for constant names
+const-name-hint=(([A-Z_][A-Z0-9_]*)|(__.*__))$
+
+# Regular expression matching correct attribute names
+attr-rgx=[a-z_][a-z0-9_]{2,30}$
+
+# Naming hint for attribute names
+attr-name-hint=[a-z_][a-z0-9_]{2,30}$
+
+# Regular expression matching correct argument names
+argument-rgx=[a-z_][a-z0-9_]{2,30}$
+
+# Naming hint for argument names
+argument-name-hint=[a-z_][a-z0-9_]{2,30}$
+
+# Regular expression matching correct class attribute names
+class-attribute-rgx=([A-Za-z_][A-Za-z0-9_]{2,30}|(__.*__))$
+
+# Naming hint for class attribute names
+class-attribute-name-hint=([A-Za-z_][A-Za-z0-9_]{2,30}|(__.*__))$
+
+# Regular expression matching correct inline iteration names
+inlinevar-rgx=[A-Za-z_][A-Za-z0-9_]*$
+
+# Naming hint for inline iteration names
+inlinevar-name-hint=[A-Za-z_][A-Za-z0-9_]*$
+
+# Regular expression matching correct class names
+class-rgx=[A-Z_][a-zA-Z0-9]+$
+
+# Naming hint for class names
+class-name-hint=[A-Z_][a-zA-Z0-9]+$
+
+# Regular expression matching correct module names
+module-rgx=(([a-z_][a-z0-9_]*)|([A-Z][a-zA-Z0-9]+))$
+
+# Naming hint for module names
+module-name-hint=(([a-z_][a-z0-9_]*)|([A-Z][a-zA-Z0-9]+))$
+
+# Regular expression matching correct method names
+method-rgx=[a-z_][a-z0-9_]{2,40}$
+
+# Naming hint for method names
+method-name-hint=[a-z_][a-z0-9_]{2,30}$
+
+# Regular expression which should only match function or class names that do
+# not require a docstring.
+no-docstring-rgx=__.*__
+
+# Minimum line length for functions/classes that require docstrings, shorter
+# ones are exempt.
+docstring-min-length=-1
+
+
+[ELIF]
+
+# Maximum number of nested blocks for function / method body
+max-nested-blocks=5
+
+
+[LOGGING]
+
+# Logging modules to check that the string format arguments are in logging
+# function parameter format
+logging-modules=logging
+
+
+[FORMAT]
+
+# Maximum number of characters on a single line.
+max-line-length=120
+
+# Regexp for a line that is allowed to be longer than the limit.
+ignore-long-lines=^\s*(# )?<?https?://\S+>?$
+
+# Allow the body of an if to be on the same line as the test if there is no
+# else.
+single-line-if-stmt=no
+
+# List of optional constructs for which whitespace checking is disabled. `dict-
+# separator` is used to allow tabulation in dicts, etc.: {1  : 1,\n222: 2}.
+# `trailing-comma` allows a space between comma and closing bracket: (a, ).
+# `empty-line` allows space-only lines.
+no-space-check=trailing-comma,dict-separator
+
+# Maximum number of lines in a module
+max-module-lines=1550
+
+# String used as indentation unit. This is usually "    " (4 spaces) or "\t" (1
+# tab).
+indent-string='    '
+
+# Number of spaces of indent required inside a hanging or continued line.
+indent-after-paren=4
+
+# Expected format of line ending, e.g. empty (any line ending), LF or CRLF.
+expected-line-ending-format=LF
+
+
+[MISCELLANEOUS]
+
+# List of note tags to take in consideration, separated by a comma.
+notes=FIXME,XXX,TODO
+
+
+[VARIABLES]
+
+# Tells whether we should check for unused import in __init__ files.
+init-import=no
+
+# A regular expression matching the name of dummy variables (i.e. expectedly
+# not used).
+dummy-variables-rgx=_$|dummy
+
+# List of additional names supposed to be defined in builtins. Remember that
+# you should avoid to define new builtins when possible.
+additional-builtins=_,_n,__request__,WindowsError
+
+# List of strings which can identify a callback function by name. A callback
+# name must start or end with one of those strings.
+callbacks=cb_,_cb
+
+# List of qualified module names which can have objects that can redefine
+# builtins.
+redefining-builtins-modules=
+
+
+[TYPECHECK]
+
+# Tells whether missing members accessed in mixin class should be ignored. A
+# mixin class is detected if its name ends with "mixin" (case insensitive).
+ignore-mixin-members=yes
+
+# List of module names for which member attributes should not be checked
+# (useful for modules/projects where namespaces are manipulated during runtime
+# and thus existing member attributes cannot be deduced by static analysis. It
+# supports qualified module names, as well as Unix pattern matching.
+ignored-modules=
+
+# List of class names for which member attributes should not be checked (useful
+# for classes with dynamically set attributes). This supports the use of
+# qualified names.
+ignored-classes=SQLObject,twisted.internet.reactor
+
+# List of members which are set dynamically and missed by pylint inference
+# system, and so shouldn't trigger E1101 when accessed. Python regular
+# expressions are accepted.
+generated-members=REQUEST,acl_users,aq_parent
+
+# List of decorators that produce context managers, such as
+# contextlib.contextmanager. Add to this list to register other decorators that
+# produce valid context managers.
+contextmanager-decorators=contextlib.contextmanager
+
+
+[SIMILARITIES]
+
+# Minimum lines number of a similarity.
+min-similarity-lines=4
+
+# Ignore comments when computing similarities.
+ignore-comments=yes
+
+# Ignore docstrings when computing similarities.
+ignore-docstrings=yes
+
+# Ignore imports when computing similarities.
+ignore-imports=no
+
+
+[IMPORTS]
+
+# Deprecated modules which should not be used, separated by a comma
+deprecated-modules=regsub,TERMIOS,Bastion,rexec
+
+# Create a graph of every (i.e. internal and external) dependencies in the
+# given file (report RP0402 must not be disabled)
+import-graph=
+
+# Create a graph of external dependencies in the given file (report RP0402 must
+# not be disabled)
+ext-import-graph=
+
+# Create a graph of internal dependencies in the given file (report RP0402 must
+# not be disabled)
+int-import-graph=
+
+# Force import order to recognize a module as part of the standard
+# compatibility libraries.
+known-standard-library=
+
+# Force import order to recognize a module as part of a third party library.
+known-third-party=enchant
+
+
+[DESIGN]
+
+# Maximum number of arguments for function / method
+max-args=7
+
+# Argument names that match this expression will be ignored. Default to name
+# with leading underscore
+ignored-argument-names=_.*
+
+# Maximum number of locals for function / method body
+max-locals=15
+
+# Maximum number of return / yield for function / method body
+max-returns=6
+
+# Maximum number of branch for function / method body
+max-branches=12
+
+# Maximum number of statements in function / method body
+max-statements=50
+
+# Maximum number of parents for a class (see R0901).
+max-parents=7
+
+# Maximum number of attributes for a class (see R0902).
+max-attributes=7
+
+# Minimum number of public methods for a class (see R0903).
+min-public-methods=2
+
+# Maximum number of public methods for a class (see R0904).
+max-public-methods=20
+
+# Maximum number of boolean expressions in a if statement
+max-bool-expr=5
+
+
+[CLASSES]
+
+# List of method names used to declare (i.e. assign) instance attributes.
+defining-attr-methods=__init__,__new__,setUp
+
+# List of valid names for the first argument in a class method.
+valid-classmethod-first-arg=cls
+
+# List of valid names for the first argument in a metaclass class method.
+valid-metaclass-classmethod-first-arg=mcs
+
+# List of member names, which should be excluded from the protected access
+# warning.
+exclude-protected=_asdict,_fields,_replace,_source,_make
+
+
+[EXCEPTIONS]
+
+# Exceptions that will emit a warning when being caught. Defaults to
+# "Exception"
+overgeneral-exceptions=Exception

.readthedocs.yml

@@ -0,0 +1,22 @@
+# .readthedocs.yml
+# Read the Docs configuration file
+# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
+
+# Required
+version: 2
+
+# Build documentation in the docs/ directory with Sphinx
+sphinx:
+  configuration: docs/source/conf.py
+
+# Optionally build your docs in additional formats such as PDF and ePub
+formats: all
+
+# Optionally set the version of Python and requirements required to build your docs
+python:
+  version: 3.7
+  install:
+    - requirements: requirements.txt
+    - requirements: docs/requirements.txt
+    - method: setuptools
+      path: .

AUTHORS

@@ -0,0 +1,790 @@
+Authors:
+    * Andrew Resch ('andar') <andrewresch@gmail.com>
+    * Damien Churchill ('damoxc') <damoxc@gmail.com>
+
+Main Developers:
+    * Andrew Resch
+    * Damien Churchill
+    * John Garland ('johnnyg') <johnnybg+deluge@gmail.com>
+    * Calum Lind ('cas') <calumlind+deluge@gmail.com>
+
+libtorrent (http://www.libtorrent.org):
+    * Arvid Norberg
+
+Contributors (and Past Developers):
+    * Zach Tibbitts <zach@collegegeek.org>
+    * Alon Zakai ('Kripken') <kripkensteiner@gmail.com>
+    * Marcos Mobley ('markybob') <markybob@gmail.com>
+    * Alex Dedul
+    * Sadrul Habib Chowdhury
+    * Ido Abramovich <ido.deluge@gmail.com>
+    * Martijn Voncken <mvoncken@gmail.com>
+    * Mark Stahler ('kramed') <markstahler@gmail.com>
+    * Pedro Algarvio ('s0undt3ch') <ufs@ufsoft.org>
+    * Cristian Greco ('cgreco') <cristian@regolo.cc>
+    * Chase Sterling ('gazpachoKing') <chase.sterling@gmail.com>
+
+Plugin Developers:
+    * Autoadd       : Chase Sterling
+    * Blocklist     : John Garland
+    * Execute       : Damien Churchill
+    * Extractor     : Andrew Resch
+    * Label         : Martijn Voncken
+    * Notifications : Pedro Algarvio
+    * Scheduler     : Andrew Resch
+    * Webui         : Damien Churchill
+
+Images Authors:
+
+    * files: deluge/ui/data/pixmaps/*.svg, *.png
+             deluge/ui/web/icons/active.png, alert.png, all.png, checking.png, dht.png,
+             downloading.png, inactive.png, queued.png, seeding.png, traffic.png
+             deluge/ui/web/images/deluge*.png
+             deluge/ui/web/icons/apple-pre-*.png, deluge*.png
+      copyright: Calum Lind
+      license: GPLv3
+
+    * files: deluge/plugins/blocklist/blocklist/data/*.png
+             deluge/ui/data/pixmaps/tracker_warning16.png, tracker_all16.png, lock48.png
+      copyright: Gnome Icon Theme
+      license: GPLv2
+      url: http://ftp.acc.umu.se/pub/GNOME/sources/gnome-icon-theme
+
+    * files: deluge/ui/data/pixmaps/magnet*.svg, *.png
+      copyright:  Matias Wilkman
+      license:
+
+    * files: deluge/ui/data/pixmaps/flags/*.png
+      copyright: Mark James <mjames@gmail.com>
+      license: Public Domain
+      url: http://famfamfam.com/lab/icons/flags/
+
+    * files: deluge/ui/web/icons/*.png
+      exceptions: apple-pre-*.png, active.png, alert.png, all.png, deluge.png, dht.png,
+                  downloading.png, inactive.png, queued.png, seeding.png, traffic.png
+      copyright: Yusuke Kamiyamane <p@yusukekamiyamane.com>
+      license: Creative Commons Attribution 3.0 License
+      url: http://p.yusukekamiyamane.com/
+
+    * files: deluge/ui/web/images/spinner.gif, spinner-split.gif
+      copyright: Steven Chim
+      license: BSD license
+      url: http://members.upc.nl/j.chim/ext/spinner2/ext-spinner.html
+
+Translation Contributors:
+    * files: deluge/i18n/*.po
+
+    Aaron Wang Shi
+    abbigss
+    ABCdatos
+    Abcx
+    Actam
+    Adam
+    adaminikisi
+    adi_oporanu
+    Adrian Goll
+    afby
+    Ahmades
+    Ahmad Farghal
+    Ahmad Gharbeia أحمد غربية
+    akira
+    Aki Sivula
+    Alan Pepelko
+    Alberto
+    Alberto Ferrer
+    alcatr4z
+    AlckO
+    Aleksej Korgenkov
+    Alessio Treglia
+    Alexander Ilyashov
+    Alexander Matveev
+    Alexander Saltykov
+    Alexander Taubenkorb
+    Alexander Telenga
+    Alexander Yurtsev
+    Alexandre Martani
+    Alexandre Rosenfeld
+    Alexandre Sapata Carbonell
+    Alexey Osipov
+    Alin Claudiu Radut
+    allah
+    AlSim
+    Alvaro Carrillanca P.
+    A.Matveev
+    Andras Hipsag
+    András Kárász
+    Andrea Ratto
+    Andreas Johansson
+    Andreas Str
+    André F. Oliveira
+    AndreiF
+    andrewh
+    Angel Guzman Maeso
+    Aníbal Deboni Neto
+    animarval
+    Antonio Cono
+    antoniojreyes
+    Anton Shestakov
+    Anton Yakutovich
+    antou
+    Arkadiusz Kalinowski
+    Artin
+    artir
+    Astur
+    Athanasios Lefteris
+    Athmane MOKRAOUI (ButterflyOfFire)
+    Augusta Carla Klug
+    Avoledo Marco
+    axaard
+    AxelRafn
+    Axezium
+    Ayont
+    b3rx
+    Bae Taegil
+    Bajusz Tamás
+    Balaam's Miracle
+    Ballestein
+    Bent Ole Fosse
+    berto89
+    bigx
+    Bjorn Inge Berg
+    blackbird
+    Blackeyed
+    blackmx
+    BlueSky
+    Blutheo
+    bmhm
+    bob00work
+    boenki
+    Bogdan Bădic-Spătariu
+    bonpu
+    Boone
+    boss01
+    Branislav Jovanović
+    bronze
+    brownie
+    Brus46
+    bumper
+    butely
+    BXCracer
+    c0nfidencal
+    Can Kaya
+    Carlos Alexandro Becker
+    cassianoleal
+    Cédric.h
+    César Rubén
+    chaoswizard
+    Chen Tao
+    chicha
+    Chien Cheng Wei
+    Christian Kopac
+    Christian Widell
+    Christoffer Brodd-Reijer
+    christooss
+    CityAceE
+    Clopy
+    Clusty
+    cnu
+    Commandant
+    Constantinos Koniaris
+    Coolmax
+    cosmix
+    Costin Chirvasuta
+    CoVaLiDiTy
+    cow_2001
+    Crispin Kirchner
+    crom
+    Cruster
+    Cybolic
+    Dan Bishop
+    Danek
+    Dani
+    Daniel Demarco
+    Daniel Ferreira
+    Daniel Frank
+    Daniel Holm
+    Daniel Høyer Iversen
+    Daniel Marynicz
+    Daniel Nylander
+    Daniel Patriche
+    Daniel Schildt
+    Daniil Sorokin
+    Dante Díaz
+    Daria Michalska
+    DarkenCZ
+    Darren
+    Daspah
+    David Eurenius
+    davidhjelm
+    David Machakhelidze
+    Dawid Dziurdzia
+    Daya Adianto
+    dcruz
+    Deady
+    Dereck Wonnacott
+    Devgru
+    Devid Antonio FiloniDevilDogTG
+    di0rz`
+    Dialecti Valsamou
+    Diego Medeiros
+    Dkzoffy
+    Dmitrij D. Czarkoff
+    Dmitriy Geels
+    Dmitry Olyenyov
+    Dominik Kozaczko
+    Dominik Lübben
+    doomster
+    Dorota Król
+    Doyen Philippe
+    Dread Knight
+    DreamSonic
+    duan
+    Duong Thanh An
+    DvoglavaZver
+    dwori
+    dylansmrjones
+    Ebuntor
+    Edgar Alejandro Jarquin Flores
+    Eetu
+    ekerazha
+    Elias Julkunen
+    elparia
+    Emberke
+    Emiliano Goday Caneda
+    EndelWar
+    eng.essam
+    enubuntu
+    ercangun
+    Erdal Ronahi
+    ergin üresin
+    Eric
+    Éric Lassauge
+    Erlend Finvåg
+    Errdil
+    ethan shalev
+    Evgeni Spasov
+    ezekielnin
+    Fabian Ordelmans
+    Fabio Mazanatti
+    Fábio Nogueira
+    FaCuZ
+    Felipe Lerena
+    Fernando Pereira
+    fjetland
+    Florian Schäfer
+    FoBoS
+    Folke
+    Force
+    fosk
+    fragarray
+    freddeg
+    Frédéric Perrin
+    Fredrik Kilegran
+    FreeAtMind
+    Fulvio Ciucci
+    Gabor Kelemen
+    Galatsanos Panagiotis
+    Gaussian
+    gdevitis
+    Georg Brzyk
+    George Dumitrescu
+    Georgi Arabadjiev
+    Georg Sieber
+    Gerd Radecke
+    Germán Heusdens
+    Gianni Vialetto
+    Gigih Aji Ibrahim
+    Giorgio Wicklein
+    Giovanni Rapagnani
+    Giuseppe
+    gl
+    glen
+    granjerox
+    Green Fish
+    greentea
+    Greyhound
+    G. U.
+    Guillaume BENOIT
+    Guillaume Pelletier
+    Gustavo Henrique Klug
+    gutocarvalho
+    Guybrush88
+    Hans Rødtang
+    HardDisk
+    Hargas Gábor
+    Heitor Thury Barreiros Barbosa
+    helios91940
+    helix84
+    Helton Rodrigues
+    Hendrik Luup
+    Henrique Ferreiro
+    Henry Goury-Laffont
+    Hezy Amiel
+    hidro
+    hoball
+    hokten
+    Holmsss
+    hristo.num
+    Hubert Życiński
+    Hyo
+    Iarwain
+    ibe
+    ibear
+    Id2ndR
+    Igor Zubarev
+    IKON (Ion)
+    imen
+    Ionuț Jula
+    Isabelle STEVANT
+    István Nyitrai
+    Ivan Petrovic
+    Ivan Prignano
+    IvaSerge
+    jackmc
+    Jacks0nxD
+    Jack Shen
+    Jacky Yeung
+    Jacques Stadler
+    Janek Thomaschewski
+    Jan Kaláb
+    Jan Niklas Hasse
+    Jasper Groenewegen
+    Javi Rodríguez
+    Jayasimha (ಜಯಸಿಂಹ)
+    jeannich
+    Jeff Bailes
+    Jesse Zilstorff
+    Joan Duran
+    João Santos
+    Joar Bagge
+    Joe Anderson
+    Joel Calado
+    Johan Linde
+    John Garland
+    Jojan
+    jollyr0ger
+    Jonas Bo Grimsgaard
+    Jonas Granqvist
+    Jonas Slivka
+    Jonathan Zeppettini
+    Jørgen
+    Jørgen Tellnes
+    josé
+    José Geraldo Gouvêa
+    José Iván León Islas
+    José Lou C.
+    Jose Sun
+    Jr.
+    Jukka Kauppinen
+    Julián Alarcón
+    julietgolf
+    Jusic
+    Justzupi
+    Kaarel
+    Kai Thomsen
+    Kalman Tarnay
+    Kamil Páral
+    Kane_F
+    kaotiks@gmail.com
+    Kateikyoushii
+    kaxhinaz
+    Kazuhiro NISHIYAMA
+    Kerberos
+    Keresztes Ákos
+    kevintyk
+    kiersie
+    Kimbo^
+    Kim Lübbe
+    kitzOgen
+    Kjetil Rydland
+    kluon
+    kmikz
+    Knedlyk
+    koleoptero
+    Kőrösi Krisztián
+    Kouta
+    Krakatos
+    Krešo Kunjas
+    kripken
+    Kristaps
+    Kristian Øllegaard
+    Kristoffer Egil Bonarjee
+    Krzysztof Janowski
+    Krzysztof Zawada
+    Larry Wei Liu
+    laughterwym
+    Laur Mõtus
+    lazka
+    leandrud
+    lê bình
+    Le Coz Florent
+    Leo
+    liorda
+    LKRaider
+    LoLo_SaG
+    Long Tran
+    Lorenz
+    Low Kian Seong
+    Luca Andrea Rossi
+    Luca Ferretti
+    Lucky LIX
+    Luis Gomes
+    Luis Reis
+    Łukasz Wyszyński
+    luojie-dune
+    maaark
+    Maciej Chojnacki
+    Maciej Meller
+    Mads Peter Rommedahl
+    Major Kong
+    Malaki
+    malde
+    Malte Lenz
+    Mantas Kriaučiūnas
+    Mara Sorella
+    Marcin
+    Marcin Falkiewicz
+    marcobra
+    Marco da Silva
+    Marco de Moulin
+    Marco Rodrigues
+    Marcos
+    Marcos Escalier
+    Marcos Mobley
+    Marcus Ekstrom
+    Marek Dębowski
+    Mário Buči
+    Mario Munda
+    Marius Andersen
+    Marius Hudea
+    Marius Mihai
+    Mariusz Cielecki
+    Mark Krapivner
+    marko-markovic
+    Markus Brummer
+    Markus Sutter
+    Martin
+    Martin Dybdal
+    Martin Iglesias
+    Martin Lettner
+    Martin Pihl
+    Masoud Kalali
+    mat02
+    Matej Urbančič
+    Mathias-K
+    Mathieu Arès
+    Mathieu D. (MatToufoutu)
+    Mathijs
+    Matrik
+    Matteo Renzulli
+    Matteo Settenvini
+    Matthew Gadd
+    Matthias Benkard
+    Matthias Mailänder
+    Mattias Ohlsson
+    Mauro de Carvalho
+    Max Molchanov
+    Me
+    MercuryCC
+    Mert Bozkurt
+    Mert Dirik
+    MFX
+    mhietar
+    mibtha
+    Michael Budde
+    Michael Kaliszka
+    Michalis Makaronides
+    Michał Tokarczyk
+    Miguel Pires da Rosa
+    Mihai Capotă
+    Miika Metsälä
+    Mikael Fernblad
+    Mike Sierra
+    mikhalek
+    Milan Prvulović
+    Milo Casagrande
+    Mindaugas
+    Miroslav Matejaš
+    misel
+    mithras
+    Mitja Pagon
+    M.Kitchen
+    Mohamed Magdy
+    moonkey
+    MrBlonde
+    muczy
+    Münir Ekinci
+    Mustafa Temizel
+    mvoncken
+    Mytonn
+    NagyMarton
+    neaion
+    Neil Lin
+    Nemo
+    Nerijus Arlauskas
+    Nicklas Larsson
+    Nicolaj Wyke
+    Nicola Piovesan
+    Nicolas Sabatier
+    Nicolas Velin
+    Nightfall
+    NiKoB
+    Nikolai M. Riabov
+    Niko_Thien
+    niska
+    Nithir
+    noisemonkey
+    nomemohes
+    nosense
+    null
+    Nuno Estêvão
+    Nuno Santos
+    nxxs
+    nyo
+    obo
+    Ojan
+    Olav Andreas Lindekleiv
+    oldbeggar
+    Olivier FAURAX
+    orphe
+    osantana
+    Osman Tosun
+    OssiR
+    otypoks
+    ounn
+    Oz123
+    Özgür BASKIN
+    Pablo Carmona A.
+    Pablo Ledesma
+    Pablo Navarro Castillo
+    Paco Molinero
+    Pål-Eivind Johnsen
+    pano
+    Paolo Naldini
+    Paracelsus
+    Patryk13_03
+    Patryk Skorupa
+    PattogoTehen
+    Paul Lange
+    Pavcio
+    Paweł Wysocki
+    Pedro Brites Moita
+    Pedro Clemente Pereira Neto
+    Pekka "PEXI" Niemistö
+    Penegal
+    Penzo
+    perdido
+    Peter Kotrcka
+    Peter Skov
+    Peter Van den Bosch
+    Petter Eklund
+    Petter Viklund
+    phatsphere
+    Phenomen
+    Philipi
+    Philippides Homer
+    phoenix
+    pidi
+    Pierre Quillery
+    Pierre Rudloff
+    Pierre Slamich
+    Pietrao
+    Piotr Strębski
+    Piotr Wicijowski
+    Pittmann Tamás
+    Playmolas
+    Prescott
+    Prescott_SK
+    pronull
+    Przemysław Kulczycki
+    Pumy
+    pushpika
+    PY
+    qubicllj
+    r21vo
+    Rafał Barański
+    rainofchaos
+    Rajbir
+    ras0ir
+    Rat
+    rd1381
+    Renato
+    Rene Hennig
+    Rene Pärts
+    Ricardo Duarte
+    Richard
+    Robert Hrovat
+    Roberth Sjonøy
+    Robert Lundmark
+    Robin Jakobsson
+    Robin Kåveland
+    Rodrigo Donado
+    Roel Groeneveld
+    rohmaru
+    Rolf Christensen
+    Rolf Leggewie
+    Roni Kantis
+    Ronmi
+    Rostislav Raykov
+    royto
+    RuiAmaro
+    Rui Araújo
+    Rui Moura
+    Rune Svendsen
+    Rusna
+    Rytis
+    Sabirov Mikhail
+    salseeg
+    Sami Koskinen
+    Samir van de Sand
+    Samuel Arroyo Acuña
+    Samuel R. C. Vale
+    Sanel
+    Santi
+    Santi Martínez Cantelli
+    Sardan
+    Sargate Kanogan
+    Sarmad Jari
+    Saša Bodiroža
+    sat0shi
+    Saulius Pranckevičius
+    Savvas Radevic
+    Sebastian Krauß
+    Sebastián Porta
+    Sedir
+    Sefa Denizoğlu
+    sekolands
+    Selim Suerkan
+    semsomi
+    Sergii Golovatiuk
+    setarcos
+    Sheki
+    Shironeko
+    Shlomil
+    silfiriel
+    Simone Tolotti
+    Simone Vendemia
+    sirkubador
+    Sławomir Więch
+    slip
+    slyon
+    smoke
+    Sonja
+    spectral
+    spin_555
+    spitf1r3
+    Spiziuz
+    Spyros Theodoritsis
+    SqUe
+    Squigly
+    srtck
+    Stefan Horning
+    Stefano Maggiolo
+    Stefano Roberto Soleti
+    steinberger
+    Stéphane Travostino
+    Stephan Klein
+    Steven De Winter
+    Stevie
+    Stian24
+    stylius
+    Sukarn Maini
+    Sunjae Park
+    Susana Pereira
+    szymon siglowy
+    takercena
+    TAS
+    Taygeto
+    temy4
+    texxxxxx
+    thamood
+    Thanos Chatziathanassiou
+    Tharawut Paripaiboon
+    Theodoor
+    Théophane Anestis
+    Thor Marius K. Høgås
+    Tiago Silva
+    Tiago Sousa
+    Tikkel
+    tim__b
+    Tim Bordemann
+    Tim Fuchs
+    Tim Kornhammar
+    Timo
+    Timo Jyrinki
+    Timothy Babych
+    TitkosRejtozo
+    Tom
+    Tomas Gustavsson
+    Tomas Valentukevičius
+    Tomasz Dominikowski
+    Tomislav Plavčić
+    Tom Mannerhagen
+    Tommy Mikkelsen
+    Tom Verdaat
+    Tony Manco
+    Tor Erling H. Opsahl
+    Toudi
+    tqm_z
+    Trapanator
+    Tribaal
+    Triton
+    TuniX12
+    Tuomo Sipola
+    turbojugend_gr
+    Turtle.net
+    twilight
+    tymmej
+    Ulrik
+    Umarzuki Mochlis
+    unikob
+    Vadim Gusev
+    Vagi
+    Valentin Bora
+    Valmantas Palikša
+    VASKITTU
+    Vassilis Skoullis
+    vetal17
+    vicedo
+    viki
+    villads hamann
+    Vincent Garibal
+    Vincent Ortalda
+    vinchi007
+    Vinícius de Figueiredo Silva
+    Vinzenz Vietzke
+    virtoo
+    virtual_spirit
+    Vitor Caike
+    Vitor Lamas Gatti
+    Vladimir Lazic
+    Vladimir Sharshov
+    Wanderlust
+    Wander Nauta
+    Ward De Ridder
+    WebCrusader
+    webdr
+    Wentao Tang
+    wilana
+    Wilfredo Ernesto Guerrero Campos
+    Wim Champagne
+    World Sucks
+    Xabi Ezpeleta
+    Xavi de Moner
+    XavierToo
+    XChesser
+    Xiaodong Xu
+    xyb
+    Yaron
+    Yasen Pramatarov
+    YesPoX
+    Yuren Ju
+    Yves MATHIEU
+    zekopeko
+    zhuqin
+    Zissan
+    Γιάννης Κατσαμπίρης
+    Артём Попов
+    Миша
+    Шаймарданов Максим
+    蔡查理

CHANGELOG.md

@@ -0,0 +1,259 @@
+# Changelog
+
+## 2.1.1 (2022-07-10)
+
+### Core
+
+- Fix missing trackers added via magnet
+- Fix handling magnets with tracker tiers
+
+## 2.1.0 (2022-06-28)
+
+### Breaking changes
+
+- Python 2 support removed (Python >= 3.6)
+- libtorrent minimum requirement increased (>= 1.2).
+
+### Core
+
+- Add support for SVG tracker icons.
+- Fix tracker icon error handling.
+- Fix cleaning-up tracker icon temp files.
+- Fix Plugin manager to handle new metadata 2.1.
+- Hide passwords in config logs.
+- Fix cleaning-up temp files in add_torrent_url.
+- Fix KeyError in sessionproxy after torrent delete.
+- Remove libtorrent deprecated functions.
+- Fix file_completed_alert handling.
+- Add plugin keys to get_torrents_status.
+- Add support for pygeoip dependency.
+- Fix crash logging to Windows protected folder.
+- Add is_interface and is_interface_name to validate network interfaces.
+- Fix is_url and is_infohash error with None value.
+- Fix load_libintl error.
+- Add support for IPv6 in host lists.
+- Add systemd user services.
+- Fix refresh and expire the torrent status cache.
+- Fix crash when logging errors initializing gettext.
+
+### Web UI
+
+- Fix ETA column sorting in correct order (#3413).
+- Fix defining foreground and background colors.
+- Accept charset in content-type for json messages.
+- Fix 'Complete Seen' and 'Completed' sorting.
+- Fix encoding HTML entities for torrent attributes to prevent XSS.
+
+### Gtk UI
+
+- Fix download location textbox width.
+- Fix obscured port number in Connection Manager.
+- Increase connection manager default height.
+- Fix bug with setting move completed in Options tab.
+- Fix adding daemon accounts.
+- Add workaround for crash on Windows with ico or gif icons.
+- Hide account password length in log.
+- Added a torrent menu option for magnet copy.
+- Fix unable to prefetch magnet in thinclient mode.
+- Use GtkSpinner when testing open port.
+- Update About Dialog year.
+- Fix Edit Torrents dialogs close issues.
+- Fix ETA being copied to neighboring empty cells.
+- Disable GTK CSD by default on Windows.
+
+### Console UI
+
+- Fix curses.init_pair raise ValueError on Py3.10.
+- Swap j and k key's behavior to fit vim mode.
+- Fix torrent details status error.
+- Fix incorrect test for when a host is online.
+- Add the torrent label to info command.
+
+### AutoAdd
+
+- Fix handling torrent decode errors.
+- Fix error dialog not being shown on error.
+
+### Blocklist
+
+- Add frequency unit to interval label.
+
+### Notifications
+
+- Fix UnicodeEncodeError upon non-ascii torrent name.
+
+## 2.0.5 (2021-12-15)
+
+### WebUI
+
+- Fix js minifying error resulting in WebUI blank screen.
+- Silence erronous missing translations warning.
+
+## 2.0.4 (2021-12-12)
+
+### Packaging
+
+- Fix python optional setup.py requirements
+
+### Gtk UI
+
+- Add detection of torrent URL on GTK UI focus
+- Fix piecesbar crashing when enabled
+- Remove num_blocks_cache_hits in stats
+- Fix unhandled error with empty clipboard
+- Add torrentdetails tabs position menu (#3441)
+- Hide pygame community banner in console
+- Fix cmp function for None types (#3309)
+- Fix loading config with double-quotes in string
+- Fix Status tab download speed and uploaded
+
+### Web UI
+
+- Handle torrent add failures
+- Add menu option to copy magnet URI
+- Fix md5sums in torrent files breaking file listing (#3388)
+- Add country flag alt/title for accessibility
+
+### Console UI
+
+- Fix allowing use of windows-curses on Windows
+- Fix hostlist status lookup errors
+- Fix AttributeError setting config values
+- Fix setting 'Skip' priority
+
+### Core
+
+- Add workaround libtorrent 2.0 file_progress error
+- Fix allow enabling any plugin Python version
+- Export torrent get_magnet_uri method
+- Fix loading magnet with resume_data and no metadata (#3478)
+- Fix httpdownloader reencoding torrent file downloads (#3440)
+- Fix lt listen_interfaces not comma-separated (#3337)
+- Fix unable to remove magnet with delete_copies enabled (#3325)
+- Fix Python 3.8 compatibility
+- Fix loading config with double-quotes in string
+- Fix pickle loading non-ascii state error (#3298)
+- Fix creation of pidfile via command option
+- Fix for peer.client UnicodeDecodeError
+- Fix show_file unhandled dbus error
+
+### Documentation
+
+- Add How-to guides about services.
+
+### Stats plugin
+
+- Fix constant session status key warnings
+- Fix cairo error
+
+### Notifications plugin
+
+- Fix email KeyError with status name
+- Fix unhandled TypeErrors on Python 3
+
+### Autoadd plugin
+
+- Fix magnet missing applied labels
+
+### Execute plugin
+
+- Fix failing to run on Windows (#3439)
+
+## 2.0.3 (2019-06-12)
+
+### Gtk UI
+
+- Fix errors running on Wayland (#3265).
+- Fix Peers Tab tooltip and context menu errors (#3266).
+
+### Web UI
+
+- Fix TypeError in Peers Tab setting country flag.
+- Fix reverse proxy header TypeError (#3260).
+- Fix request.base 'idna' codec error (#3261).
+- Fix unable to change password (#3262).
+
+### Extractor plugin
+
+- Fix potential error starting plugin.
+
+### Documentation
+
+- Fix macOS install typo.
+- Fix Windows install instructions.
+
+## 2.0.2 (2019-06-08)
+
+### Packaging
+
+- Add systemd deluged and deluge-web service files to package tarball (#2034)
+
+### Core
+
+- Fix Python 2 compatibility issue with SimpleNamespace.
+
+## 2.0.1 (2019-06-07)
+
+### Packaging
+
+- Fix `setup.py` build error without git installed.
+
+## 2.0.0 (2019-06-06)
+
+### Codebase
+
+- Ported to Python 3
+
+### Core
+
+- Improved Logging
+- Removed the AutoAdd feature on the core. It's now handled with the AutoAdd
+  plugin, which is also shipped with Deluge, and it does a better job and
+  now, it even supports multiple users perfectly.
+- Authentication/Permission exceptions are now sent to clients and recreated
+  there to allow acting upon them.
+- Updated SSL/TLS Protocol parameters for better security.
+- Make the distinction between adding to the session new unmanaged torrents
+  and torrents loaded from state. This will break backwards compatibility.
+- Pass a copy of an event instead of passing the event arguments to the
+  event handlers. This will break backwards compatibility.
+- Allow changing ownership of torrents.
+- File modifications on the auth file are now detected and when they happen,
+  the file is reloaded. Upon finding an old auth file with an old format, an
+  upgrade to the new format is made, file saved, and reloaded.
+- Authentication no longer requires a username/password. If one or both of
+  these is missing, an authentication error will be sent to the client
+  which should then ask the username/password to the user.
+- Implemented sequential downloads.
+- Provide information about a torrent's pieces states
+- Add Option To Specify Outgoing Connection Interface.
+- Fix potential for host_id collision when creating hostlist entries.
+
+### Gtk UI
+
+- Ported to GTK3 (3rd-party plugins will need updated).
+- Allow changing ownership of torrents.
+- Host entries in the Connection Manager UI are now editable.
+- Implemented sequential downloads UI handling.
+- Add optional pieces bar instead of a regular progress bar in torrent status tab.
+- Make torrent opening compatible with all Unicode paths.
+- Fix magnet association button on Windows.
+- Add keyboard shortcuts for changing queue position:
+  - Up: `Ctrl+Alt+Up`
+  - Down: `Ctrl+Alt+Down`
+  - Top: `Ctrl+Alt+Shift+Up`
+  - Bottom: `Ctrl+Alt+Shift+Down`
+
+### Web UI
+
+- Server (deluge-web) now daemonizes by default, use '-d' or '--do-not-daemonize' to disable.
+- Fixed the '--base' option to work for regular use, not just with reverse proxies.
+
+### Blocklist Plugin
+
+- Implemented whitelist support to both core and GTK UI.
+- Implemented IP filter cleaning before each update. Restarting the deluge
+  daemon is no longer needed.
+- If "check_after_days" is 0(zero), the timer is not started anymore. It
+  would keep updating one call after the other. If the value changed, the
+  timer is now stopped and restarted using the new value.

ChangeLog

@@ -1,124 +0,0 @@
-Deluge 0.5.7 (xx November 2007)
-  * Set default piece size to 256-KiB in TorrentCreator plugin and add 2048KiB
-  as a size option.
-
-Deluge 0.5.6 (24 October 2007)
-  * Web Interface Plugin
-  * Hopefully fix "losing data" and having to re-download parts (for real this time :p)
-  * Use new full allocation method which does not create files until one of its
-  pieces is downloaded
-  * Tray lock password is no longer stored in plain text
-  * Update the Scheduler plugin and fix a bunch of bugs on it
-  * Double-clicking on a torrent opens up its containing folder
-  * Fix SpeedLimiter plugin when setting upload limits
-  * Fix MoveTorrent plugin when moving actively downloading torrents
-  * Pause torrents while importing blocklist and resume them when finished
-  * Remove TorrentPieces and disable its use
-  * A whole bunch of stuff for Win32
-  * Add private flag to TorrentCreator plugin
-  * Use SVG for internal logo usage (except on Win32)
-  * Use theme for tray icon instead of hard-coded 
-  * Properly release port on shutdown
-  * TorrentFiles plugin now has progress bars
-  * Removing torrent files no longer deletes files that werent part of the torrent
-  * New max half-open connections setting to deal with cheap/broken routers
-  * Inherit UPnP fixes from libtorrent
-  * Use threading for everything, instead of spawnning
-
-Deluge 0.5.5 (09 September 2007)
-  * Editing a torrent's tracker list is now persistent between sessions
-  * Persistence between sessions for Speed Limiter, Web Seed and Desired Ratio 
-  plugins
-  * New wizard to aid first-time users with configuration
-  * Reorderable tabs and remember order (with exception of details tab)
-  * Fix losing data and having to re-download parts
-  * Fix password lock showing when main window is not hidden
-  * Get rid of the plugin manager and integrate it into preferences
-  * New Move torrent plugin - takes over for "move completed downloads" feature
-  and provides a "Move Torrent" option when right-clicking on a torrent
-  * Save column widths
-  * Queue order after restart fixes.
-  * Use payload instead of including protocol overhead to ease user confusion 
-  of seeding torrents "downloading"
-  * New Web Seed plugin for adding URLs to torrents for http seeding
-  * Add FAST-extension (http://www.bittorrent.org/fast_extensions.html)
-
-Deluge 0.5.4.1 (10 August 2007)
-  * Add "Open containing folder" and "Open File" to the torrent and file 
-  menu, respectively
-  * Load Blocklist plugin last and have it not lock up the interface during 
-  import
-  * Add full allocation to preferences for clarification
-  * Catch SIGINT, SIGHUP, SIGTERM and Gnome logoff to quit properly
-  * Add send local info to developers
-  * Fix up pieces, peers and files plugins
-  * UPnP fixes
-  * Add ExtraStats plugin
-  * FreeBSD full allocation fix
-  * Added per torrent max upload slots and max connections preferences
-  * A lot of other less visible improvements
-  
-Deluge 0.5.4 (06 August 2007)
-
-  * Tray message includes session totals
-  * Ticket #198 - Display peers countries in the Peers tab.
-  * Ticket #474 - Multiple password prompts displayed
-  * Pause all/resume all in tray menu
-  * Peers and Files tabs are now plugins
-  * New Location plugin
-  * Option to use a random port every time
-  * Proxy system redone - you can now specify different information for each 
-  type of proxy (DHT, peer, tracker, web-seed)
-  * TorrentPieces plugin to view piece updates and show pieces table per file
-  * EventLogger plugin to view/log every activity
-  * SpeedLimiter plugin, which allows you to set speed limits on a per-torrent
-  basis
-  * New release alerts - Client will inform user if their version of deluge is
-  outdated
-
-Deluge 0.5.3 (25 July 2007)
-
-  * Added ChangeLog
-  * Ticket #53 - Added files priorities within torrent
-  * Ticket #111 - Remember directory of last added torrent
-  * Ticket #232 - Added Move completed downloads to feature
-  * Ticket #245 - Added ability to select torrent files before starting
-  * Ticked #368 - Added ability to prioritize first and last pieces of files
-  in torrents
-  * Ticket #371 - Proper full storage allocation of files on reiser4 and
-  ntfs-3g filesystems
-  * Ticket #420 - Show size of torrent minus size of unselected files as Total
-  Size
-  * Ticket #405 - Properly start in tray when run deluge --tray
-  * Ticket #437 - Gracefully upgrade from old versions
-  * Picking a file to not download now checks for compact_mode status to prevent
-  all sorts of problems such as downloading pieces into the wrong file
-  * RSS plugin inclusion
-  * Added ability to queue new torrents above completed ones when
-  seeds are set to queue at the bottom
-  * Added availability and piece size display in details, availailability
-  column
-  * Added ability to automatically remove torrents when max share ratio is set
-  * Show text from clipboard in Add URL dialog only if it looks like an URL
-  * Added Torrent Notification plugin
-  * Added event handling callbacks for plugins
-  * Added ability to designate a torrent as private (in file selection dialog)
-  * Added merging trackers of duplicate torrents
-  * Details, Peers and Files tabs more responsible and their perfomance
-  greatly improved especially on torrents with many files and peers
-  * A lot of other less visible improvements
-
-Deluge 0.5.2 (05 July 2007)
-  * ticket #6 - Torrent creation built into main client
-  * ticket #315 - Plugins implemented as modules
-  * ticket #310 - Configuration options for PEX and UPnP
-  * ticket #390 - Individual file progress shown in File tab
-  * The usual slew of improvements
-
-Deluge 0.5.1 (11 June 2007)
-  * Peer Exchange
-  * ticket #254 - Encryption
-  * ticket #142 - UPnP + NATPMP
-  * Improved user interface
-  * Redesigned preferences dialog
-  * Proper startup and shutdown

DEPENDS.md

@@ -0,0 +1,100 @@
+# Deluge dependencies
+
+The following are required to install and run Deluge. They are separated into
+sections to distinguish the precise requirements for each module.
+
+All modules will require the [common](#common) section dependencies.
+
+## Prerequisite
+
+- [Python] _>= 3.6_
+
+## Build
+
+- [setuptools]
+- [intltool] - Optional: Desktop file translation for \*nix.
+- [closure-compiler] - Minify javascript (alternative is [rjsmin])
+
+## Common
+
+- [Twisted] _>= 17.1_ - Use `TLS` extras for `service_identity` and `idna`.
+- [OpenSSL] _>= 1.0.1_
+- [pyOpenSSL]
+- [rencode] _>= 1.0.2_ - Encoding library.
+- [PyXDG] - Access freedesktop.org standards for \*nix.
+- [xdg-utils] - Provides xdg-open for \*nix.
+- [zope.interface]
+- [chardet] - Optional: Encoding detection.
+- [setproctitle] - Optional: Renaming processes.
+- [Pillow] - Optional: Support for resizing tracker icons.
+- [dbus-python] - Optional: Show item location in filemanager.
+- [ifaddr] - Optional: Verify network interfaces.
+
+### Linux and BSD
+
+- [distro] - Optional: OS platform information.
+
+### Windows OS
+
+- [pywin32]
+- [certifi]
+
+## Core (deluged daemon)
+
+- [libtorrent] _>= 1.2.0_
+- [GeoIP] or [pygeoip] - Optional: IP address country lookup. (_Debian: `python-geoip`_)
+
+## GTK UI
+
+- [GTK+] >= 3.10
+- [PyGObject]
+- [Pycairo]
+- [librsvg] _>= 2_
+- [libappindicator3] w/GIR - Optional: Ubuntu system tray icon.
+
+### MacOS
+
+- [GtkOSXApplication]
+
+## Web UI
+
+- [mako]
+
+## Plugins
+
+### Notifications
+
+- [pygame] - Optional: Play sounds
+- [libnotify] w/GIR - Optional: Desktop popups.
+
+[python]: https://www.python.org/
+[setuptools]: https://setuptools.readthedocs.io/en/latest/
+[intltool]: https://freedesktop.org/wiki/Software/intltool/
+[closure-compiler]: https://developers.google.com/closure/compiler/
+[rjsmin]: https://pypi.org/project/rjsmin/
+[openssl]: https://www.openssl.org/
+[pyopenssl]: https://pyopenssl.org
+[twisted]: https://twistedmatrix.com
+[pillow]: https://pypi.org/project/Pillow/
+[libtorrent]: https://libtorrent.org/
+[zope.interface]: https://pypi.org/project/zope.interface/
+[distro]: https://github.com/nir0s/distro
+[pywin32]: https://github.com/mhammond/pywin32
+[certifi]: https://pypi.org/project/certifi/
+[dbus-python]: https://pypi.org/project/dbus-python/
+[setproctitle]: https://pypi.org/project/setproctitle/
+[gtkosxapplication]: https://github.com/jralls/gtk-mac-integration
+[chardet]: https://chardet.github.io/
+[rencode]: https://github.com/aresch/rencode
+[pyxdg]: https://www.freedesktop.org/wiki/Software/pyxdg/
+[xdg-utils]: https://www.freedesktop.org/wiki/Software/xdg-utils/
+[gtk+]: https://www.gtk.org/
+[pycairo]: https://cairographics.org/pycairo/
+[pygobject]: https://pygobject.readthedocs.io/en/latest/
+[geoip]: https://pypi.org/project/GeoIP/
+[mako]: https://www.makotemplates.org/
+[pygame]: https://www.pygame.org/
+[libnotify]: https://developer.gnome.org/libnotify/
+[python-appindicator]: https://packages.ubuntu.com/xenial/python-appindicator
+[librsvg]: https://wiki.gnome.org/action/show/Projects/LibRsvg
+[ifaddr]: https://pypi.org/project/ifaddr/

HACKING

@@ -1,40 +0,0 @@
-# Copyright (c) 2006 Marcos Pinto ('markybob') <markybob@gmail.com>
-
-This is pretty much taken straight out of PEP 8, the "Style Guide for Python 
-Code" (http://www.python.org/dev/peps/pep-0008/)
-More or less, if you try to submit a patch that doesn't follow this guide, odds
-are your patch will be denied...unless it does some incredibly magnificient 
-things, in which case I *might* edit it.  Don't bet on it, though.
-
-Here are the highlights:
-    Indents are FOUR (4) spaces.  Not 8, not 5 or 2 and definitely NOT tab.
-    Limit all lines to a maximum of 80 characters.
-    Use UTF-8 encoding
-    Every single import should be on its own line
-    Avoid extraneous whitespace in the following situations:
-        Yes: spam(ham[1], {eggs: 2})
-        No:  spam( ham[ 1 ], { eggs: 2 } )
-        Yes: spam(1)
-        No:  spam (1)
-        Yes: if x == 4: print x, y; x, y = y, x
-        No:  if x == 4 : print x , y ; x , y = y , x
-        Yes: dict['key'] = list[index]
-        No:  dict ['key'] = list [index]
-        Yes:
-            x = 1
-            y = 2
-            long_variable = 3
-        No:
-            x             = 1
-            y             = 2
-            long_variable = 3
-
-Some more recommendations: 
-    * "Don't repeat yourself (DRY). Every distinct concept and/or piece of 
-    data should live in one, and only one, place. Redundancy is bad. 
-    Normalization is good." (taken straight from django's Design philosophies)
-    * Try to use iterators/generators where applicable. The simplest change from
-    range to xrange is also good.
-    * In UI and deluge code for consistency we use notion of speed not rate.
-    Libtorrent mixes this usage and so do we on deluge-libtorrent boundary, 
-    but all deluge only code should use speed.

LICENSE

@@ -1,350 +1,634 @@
-		    GNU GENERAL PUBLIC LICENSE
-		       Version 2, June 1991
+Deluge is licensed under the GNU General Public License version 3 with the
+addition of the following special exception:
 
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.
-     59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+In addition, as a special exception, the copyright holders give
+permission to link the code of portions of this program with the OpenSSL
+library.
+You must obey the GNU General Public License in all respects for all of
+the code used other than OpenSSL. If you modify file(s) with this
+exception, you may extend this exception to your version of the file(s),
+but you are not obligated to do so. If you do not wish to do so, delete
+this exception statement from your version. If you delete this exception
+statement from all source files in the program, then also delete it here.
+
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
  Everyone is permitted to copy and distribute verbatim copies
  of this license document, but changing it is not allowed.
 
-			    Preamble
+                            Preamble
 
-  The licenses for most software are designed to take away your
-freedom to share and change it.  By contrast, the GNU General Public
-License is intended to guarantee your freedom to share and change free
-software--to make sure the software is free for all its users.  This
-General Public License applies to most of the Free Software
-Foundation's software and to any other program whose authors commit to
-using it.  (Some other Free Software Foundation software is covered by
-the GNU Library General Public License instead.)  You can apply it to
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
 your programs, too.
 
   When we speak of free software, we are referring to freedom, not
 price.  Our General Public Licenses are designed to make sure that you
 have the freedom to distribute copies of free software (and charge for
-this service if you wish), that you receive source code or can get it
-if you want it, that you can change the software or use pieces of it
-in new free programs; and that you know you can do these things.
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
 
-  To protect your rights, we need to make restrictions that forbid
-anyone to deny you these rights or to ask you to surrender the rights.
-These restrictions translate to certain responsibilities for you if you
-distribute copies of the software, or if you modify it.
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
 
   For example, if you distribute copies of such a program, whether
-gratis or for a fee, you must give the recipients all the rights that
-you have.  You must make sure that they, too, receive or can get the
-source code.  And you must show them these terms so they know their
-rights.
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
+or can get the source code.  And you must show them these terms so they
+know their rights.
 
-  We protect your rights with two steps: (1) copyright the software, and
-(2) offer you this license which gives you legal permission to copy,
-distribute and/or modify the software.
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
 
-  Also, for each author's protection and ours, we want to make certain
-that everyone understands that there is no warranty for this free
-software.  If the software is modified by someone else and passed on, we
-want its recipients to know that what they have is not the original, so
-that any problems introduced by others will not reflect on the original
-authors' reputations.
+  For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software.  For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
 
-  Finally, any free program is threatened constantly by software
-patents.  We wish to avoid the danger that redistributors of a free
-program will individually obtain patent licenses, in effect making the
-program proprietary.  To prevent this, we have made it clear that any
-patent must be licensed for everyone's free use or not licensed at all.
+  Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so.  This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software.  The systematic
+pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable.  Therefore, we
+have designed this version of the GPL to prohibit the practice for those
+products.  If such problems arise substantially in other domains, we
+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+  Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary.  To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
 
   The precise terms and conditions for copying, distribution and
 modification follow.
-
-		    GNU GENERAL PUBLIC LICENSE
-   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
 
-  0. This License applies to any program or other work which contains
-a notice placed by the copyright holder saying it may be distributed
-under the terms of this General Public License.  The "Program", below,
-refers to any such program or work, and a "work based on the Program"
-means either the Program or any derivative work under copyright law:
-that is to say, a work containing the Program or a portion of it,
-either verbatim or with modifications and/or translated into another
-language.  (Hereinafter, translation is included without limitation in
-the term "modification".)  Each licensee is addressed as "you".
+                       TERMS AND CONDITIONS
 
-Activities other than copying, distribution and modification are not
-covered by this License; they are outside its scope.  The act of
-running the Program is not restricted, and the output from the Program
-is covered only if its contents constitute a work based on the
-Program (independent of having been made by running the Program).
-Whether that is true depends on what the Program does.
+  0. Definitions.
 
-  1. You may copy and distribute verbatim copies of the Program's
-source code as you receive it, in any medium, provided that you
-conspicuously and appropriately publish on each copy an appropriate
-copyright notice and disclaimer of warranty; keep intact all the
-notices that refer to this License and to the absence of any warranty;
-and give any other recipients of the Program a copy of this License
-along with the Program.
+  "This License" refers to version 3 of the GNU General Public License.
 
-You may charge a fee for the physical act of transferring a copy, and
-you may at your option offer warranty protection in exchange for a fee.
+  "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
 
-  2. You may modify your copy or copies of the Program or any portion
-of it, thus forming a work based on the Program, and copy and
-distribute such modifications or work under the terms of Section 1
-above, provided that you also meet all of these conditions:
+  "The Program" refers to any copyrightable work licensed under this
+License.  Each licensee is addressed as "you".  "Licensees" and
+"recipients" may be individuals or organizations.
 
-    a) You must cause the modified files to carry prominent notices
-    stating that you changed the files and the date of any change.
+  To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
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-    b) You must cause any work that you distribute or publish, that in
-    whole or in part contains or is derived from the Program or any
-    part thereof, to be licensed as a whole at no charge to all third
-    parties under the terms of this License.
+  A "covered work" means either the unmodified Program or a work based
+on the Program.
 
-    c) If the modified program normally reads commands interactively
-    when run, you must cause it, when started running for such
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-    notice that there is no warranty (or else, saying that you provide
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-    does not normally print such an announcement, your work based on
-    the Program is not required to print an announcement.)
-
-These requirements apply to the modified work as a whole.  If
-identifiable sections of that work are not derived from the Program,
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-on the Program, the distribution of the whole must be on the terms of
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+  To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy.  Propagation includes copying,
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-In addition, mere aggregation of another work not based on the Program
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+menu, a prominent item in the list meets this criterion.
 
-  3. You may copy and distribute the Program (or a work based on it,
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-    a) Accompany it with the complete corresponding machine-readable
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-
-  4. You may not copy, modify, sublicense, or distribute the Program
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+  All rights granted under this License are granted for the term of
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+11 of the WIPO copyright treaty adopted on 20 December 1996, or
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+  You may convey verbatim copies of the Program's source code as you
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+  7. Additional Terms.
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+  "Additional permissions" are terms that supplement the terms of this
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+Additional permissions that are applicable to the entire Program shall
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+  When you convey a copy of a covered work, you may at your option
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+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
 
-If any portion of this section is held invalid or unenforceable under
-any particular circumstance, the balance of the section is intended to
-apply and the section as a whole is intended to apply in other
-circumstances.
+  13. Use with the GNU Affero General Public License.
 
-It is not the purpose of this section to induce you to infringe any
-patents or other property right claims or to contest validity of any
-such claims; this section has the sole purpose of protecting the
-integrity of the free software distribution system, which is
-implemented by public license practices.  Many people have made
-generous contributions to the wide range of software distributed
-through that system in reliance on consistent application of that
-system; it is up to the author/donor to decide if he or she is willing
-to distribute software through any other system and a licensee cannot
-impose that choice.
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
 
-This section is intended to make thoroughly clear what is believed to
-be a consequence of the rest of this License.
-
-  8. If the distribution and/or use of the Program is restricted in
-certain countries either by patents or by copyrighted interfaces, the
-original copyright holder who places the Program under this License
-may add an explicit geographical distribution limitation excluding
-those countries, so that distribution is permitted only in or among
-countries not thus excluded.  In such case, this License incorporates
-the limitation as if written in the body of this License.
+  14. Revised Versions of this License.
 
-  9. The Free Software Foundation may publish revised and/or new versions
-of the General Public License from time to time.  Such new versions will
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
 be similar in spirit to the present version, but may differ in detail to
 address new problems or concerns.
 
-Each version is given a distinguishing version number.  If the Program
-specifies a version number of this License which applies to it and "any
-later version", you have the option of following the terms and conditions
-either of that version or of any later version published by the Free
-Software Foundation.  If the Program does not specify a version number of
-this License, you may choose any version ever published by the Free Software
-Foundation.
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
 
-  10. If you wish to incorporate parts of the Program into other free
-programs whose distribution conditions are different, write to the author
-to ask for permission.  For software which is copyrighted by the Free
-Software Foundation, write to the Free Software Foundation; we sometimes
-make exceptions for this.  Our decision will be guided by the two goals
-of preserving the free status of all derivatives of our free software and
-of promoting the sharing and reuse of software generally.
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
 
-			    NO WARRANTY
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
 
-  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
-FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
-OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
-PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
-OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
-TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
-PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
-REPAIR OR CORRECTION.
+  15. Disclaimer of Warranty.
 
-  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
-REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
-INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
-OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
-TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
-YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
-PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
-POSSIBILITY OF SUCH DAMAGES.
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
 
-		     END OF TERMS AND CONDITIONS
+  16. Limitation of Liability.
 
-	    How to Apply These Terms to Your New Programs
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
 
-  If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
+  17. Interpretation of Sections 15 and 16.
 
-  To do so, attach the following notices to the program.  It is safest
-to attach them to the start of each source file to most effectively
-convey the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
 
-    <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) <year>  <name of author>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-
-
-Also add information on how to contact you by electronic and paper mail.
-
-If the program is interactive, make it output a short notice like this
-when it starts in an interactive mode:
-
-    Gnomovision version 69, Copyright (C) year  name of author
-    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
-    This is free software, and you are welcome to redistribute it
-    under certain conditions; type `show c' for details.
-
-The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License.  Of course, the commands you use may
-be called something other than `show w' and `show c'; they could even be
-mouse-clicks or menu items--whatever suits your program.
-
-You should also get your employer (if you work as a programmer) or your
-school, if any, to sign a "copyright disclaimer" for the program, if
-necessary.  Here is a sample; alter the names:
-
-  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
-  `Gnomovision' (which makes passes at compilers) written by James Hacker.
-
-  <signature of Ty Coon>, 1 April 1989
-  Ty Coon, President of Vice
-
-This General Public License does not permit incorporating your program into
-proprietary programs.  If your program is a subroutine library, you may
-consider it more useful to permit linking proprietary applications with the
-library.  If this is what you want to do, use the GNU Library General
-Public License instead of this License.
-
-  In addition, as a special exception, the copyright holders give
-  permission to link the code of portions of this program with the OpenSSL
-  library.
-  You must obey the GNU General Public License in all respects for all of
-  the code used other than OpenSSL. If you modify file(s) with this
-  exception, you may extend this exception to your version of the file(s),
-  but you are not obligated to do so. If you do not wish to do so, delete
-  this exception statement from your version. If you delete this exception
-  statement from all source files in the program, then also delete it here.
+                     END OF TERMS AND CONDITIONS

MANIFEST.in

@@ -1,12 +1,36 @@
+include *.md
+include AUTHORS
 include LICENSE
-include README
-include README.Packagers
-include Makefile
-include deluge.desktop
-include deluge.png
+include RELEASE-VERSION
 include msgfmt.py
-recursive-include libtorrent/ *
-recursive-include glade/ *.glade
-recursive-include pixmaps/ *.png *.svg
-recursive-include plugins/ *
-recursive-include po/ *
+include minify_web_js.py
+include version.py
+include gen_web_gettext.py
+
+graft docs/man
+graft packaging/systemd
+
+include deluge/i18n/*.po
+recursive-exclude deluge/i18n *.mo
+
+graft deluge/plugins
+recursive-exclude deluge/plugins create_dev_link.sh *.pyc *.egg
+prune deluge/plugins/*/build
+prune deluge/plugins/*/*.egg-info
+
+graft deluge/tests/
+recursive-exclude deluge/tests *.pyc
+
+graft deluge/ui/data
+recursive-exclude deluge/ui/data *.desktop *.xml
+graft deluge/ui/gtk3/glade
+
+include deluge/ui/web/index.html
+include deluge/ui/web/css/*.css
+include deluge/ui/web/js/*.js
+graft deluge/ui/web/js/deluge-all/
+graft deluge/ui/web/js/extjs/
+graft deluge/ui/web/themes
+graft deluge/ui/web/render
+graft deluge/ui/web/icons
+graft deluge/ui/web/images

Makefile

@@ -1,31 +0,0 @@
-#
-# Makefile for Deluge
-#
-PYVER=`python -c "import sys; print sys.version[:3]"`
-PREFIX ?= /usr
-DESTDIR ?= ./
-
-all:
-	python setup.py build
-
-tarball:
-	python setup.py sdist
-	mv dist/deluge-*.tar.gz $(DESTDIR)
-
-install:
-	python setup.py install --prefix=$(PREFIX)
-
-clean:
-	python setup.py clean
-	rm -rf ./build
-	rm msgfmt.pyc
-	find . -name *.pyc -exec rm {} \;
-
-uninstall:
-	-rm $(PREFIX)/bin/deluge
-	-rm -r $(PREFIX)/lib/python${PYVER}/site-packages/deluge
-	-rm -r $(PREFIX)/lib/python${PYVER}/site-packages/deluge-*.egg-info
-	-rm -r $(PREFIX)/share/deluge
-	-find ${PREFIX}/share/locale -name deluge.mo -exec rm {} \;
-	-rm $(PREFIX)/share/applications/deluge.desktop
-	-rm $(PREFIX)/share/pixmaps/deluge.png

PKG-INFO

@@ -1,10 +0,0 @@
-Metadata-Version: 1.0
-Name: deluge
-Version: 0.5.2
-Summary: A bittorrent client written in PyGTK
-Home-page: http://deluge-torrent.org
-Author: Zach Tibbitts, Alon Zakai, Marcos Pinto, Alex Dedul, Andrew Resch
-Author-email: zach@collegegeek.org, kripkensteiner@gmail.com, marcospinto@dipconsultants.com, rotmer@gmail.com, alonzakai@gmail.com 
-License: GPLv2
-Description: UNKNOWN
-Platform: UNKNOWN

README

@@ -1,101 +0,0 @@
-==========================
- Deluge BitTorrent Client
-==========================
-
-Authors:
-	Zach Tibbitts, aka zachtib
-	Alon Zakai, aka kripkenstein
-	Marcos Pinto, aka markybob
-	Andrew Resch, aka andar
-	Alex Dedul, aka plisk
-
-Homepage: http://deluge-torrent.org
-
-==========================
-Contact/Support:
-==========================
-
-We have two options available for support:
-
-	Our Forum, at http://forum.deluge-torrent.org
-		or
-	Our IRC Channel, at #deluge on Freenode
-
-==========================
-Installation Instructions:
-==========================
-
-First, make sure you have the proper build dependencies installed.  On a normal 
-Debian or Ubuntu system, those dependencies are:
-
-g++
-make
-python-all-dev
-python-all version >= 2.4
-python-dbus
-python-gtk2 version >= 2.9
-python-notify
-librsvg2-common
-python-xdg
-python-support
-libboost-dev >= 1.33.1
-libboost-thread-dev
-libboost-date-time-dev
-libboost-filesystem-dev
-libboost-serialization-dev
-libssl-dev
-zlib1g-dev
-
-But the names of the packages may vary depending on your OS / distro.
-
-Once you have the needed libraries installed, build Deluge by running:
-
-	$ make
-
-You shouldn't get any errors.  Then run, as root (or by using sudo): 
-
-	$ make install
-
-and Deluge will be installed.  By default, Deluge will be installed to the
-prefix /usr.  If you wish, you can install Deluge to a different prefix by
-specifying it when you install it:
-
-	$ PREFIX=yourprefixhere make install
-
-So, to install to /usr/local, run:
-
-	$ PREFIX=/usr/local make install
-
-You can then run Deluge by executing:
-
-	$ deluge
-
-==========================
-Uninstallation/Upgrading:
-==========================
-
-If you wish to upgrade from the older Deluge version please remove it first, 
-then install the latest version as per "Installation Instructions". If you 
-installed via the tarball, cd into the unpacked source tarball and then run, 
-as root (or by using sudo): 
-
-	$ make uninstall
-
-If you installed via the deb package, run as root (or by using sudo:)
-    $ dpkg --purge remove deluge-torrent
-
-Now install the latest version (and check out the additional notes).
-
-==========================
-Additional Notes:
-==========================
-
-1) On some distributions, boost libraries are  renamed to have "-mt" at the end 
-(boost_thread_mt instead of boost_thread, for example), the "mt"  indicating 
-"multithreaded". In some cases it appears the distros lack symlinks to connect 
-things. The solution is to either add symlinks from the short names to those 
-with "-mt", or to alter setup.py to look for the "-mt" versions.
- 
-2) After upgrading your Deluge installation, it may fail to start.  If this 
-happens to you, you need to remove your ~/.config/deluge directory to allow 
-Deluge to rebuild it's configuration file.

README.Packagers

@@ -1,8 +0,0 @@
-NOTE: Deluge 0.5.1 and newer uses an svn build of libtorrent.  This build 
-differs from a clean libtorrent source checkout and has been hacked in order 
-to get it to work properly with Deluge.  As a result, Deluge will likely not 
-build properly against a vanilla libtorrent 0.12 installation or a nightly 
-build oflibtorrent 0.13.  It is recommended that you build against our included 
-libtorrent, as our build will not conflict with any installed libtorrent.
-
- - zachtib

README.md

@@ -0,0 +1,71 @@
+# Deluge BitTorrent Client
+
+[![build-status]][github-ci] [![docs-status]][rtd-deluge]
+
+Deluge is a BitTorrent client that utilizes a daemon/client model.
+It has various user interfaces available such as the GTK-UI, Web-UI and
+Console-UI. It uses [libtorrent][lt] at its core to handle the BitTorrent
+protocol.
+
+## Install
+
+From [PyPi](https://pypi.org/project/deluge):
+
+    pip install deluge
+
+with all optional dependencies:
+
+    pip install deluge[all]
+
+From source code:
+
+    pip install .
+
+with all optional dependencies:
+
+    pip install .[all]
+
+See [DEPENDS](DEPENDS.md) and [Installing/Source] for dependency details.
+
+## Usage
+
+The various user-interfaces and Deluge daemon can be started with the following commands.
+
+Use the `--help` option for further command options.
+
+### Gtk UI
+
+`deluge` or `deluge-gtk`
+
+### Console UI
+
+`deluge-console`
+
+### Web UI
+
+`deluge-web`
+
+Open http://localhost:8112 with default password `deluge`.
+
+### Daemon
+
+`deluged`
+
+See the [Thinclient guide] to connect to the daemon from another computer.
+
+## Contact
+
+- [Homepage](https://deluge-torrent.org)
+- [User guide][user guide]
+- [Forum](https://forum.deluge-torrent.org)
+- [IRC Libera.Chat #deluge](irc://irc.libera.chat/deluge)
+- [Discord](https://discord.gg/nwaHSE6tqn)
+
+[user guide]: https://dev.deluge-torrent.org/wiki/UserGuide
+[thinclient guide]: https://dev.deluge-torrent.org/wiki/UserGuide/ThinClient
+[installing/source]: https://dev.deluge-torrent.org/wiki/Installing/Source
+[build-status]: https://github.com/deluge-torrent/deluge/actions/workflows/ci.yml/badge.svg?branch=develop "CI"
+[github-ci]: https://github.com/deluge-torrent/deluge/actions/workflows/ci.yml
+[docs-status]: https://readthedocs.org/projects/deluge/badge/?version=latest
+[rtd-deluge]: https://deluge.readthedocs.io/en/latest/?badge=latest "Documentation Status"
+[lt]: https://libtorrent.org

TODO

@@ -1,6 +0,0 @@
-for 0.5.7
-    1. manual recheck
-    2. preference for .torrent location
-    3. have blocklist detect 7zip files and popup a warning instead of crashing
-    4. add auto-pickup folder
-    5. remap filenames

createicons.sh

@@ -1,5 +0,0 @@
-#!/bin/bash
-for size in 16 22 24 32 36 48 64 72 96 128 192 256; do mkdir -p icons/hicolor/\
-${size}x${size}/apps; rsvg-convert -w ${size} -h ${size} \
--o icons/hicolor/${size}x${size}/apps/deluge.png pixmaps/deluge.svg; mkdir -p \
-icons/scalable/apps/; cp pixmaps/deluge.svg icons/scalable/apps/deluge.svg; done

deluge.desktop

@@ -1,12 +0,0 @@
-[Desktop Entry]
-Version=1.0
-Encoding=UTF-8
-Name=Deluge BitTorrent Client
-Comment=Bittorrent client written in PyGTK
-Exec=deluge
-Icon=deluge.png
-Terminal=false
-Type=Application
-Categories=Application;Network
-StartupNotify=true
-MimeType=application/x-bittorrent;

deluge/__init__.py

@@ -0,0 +1 @@
+"""Deluge"""

deluge/_libtorrent.py

@@ -0,0 +1,35 @@
+#
+# Copyright (C) 2009 Andrew Resch <andrewresch@gmail.com>
+#
+# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
+# the additional special exception to link portions of this program with the OpenSSL library.
+# See LICENSE for more details.
+#
+
+"""
+This module is used to handle the importing of libtorrent and also controls
+the minimum versions of libtorrent that this version of Deluge supports.
+
+Example:
+    >>> from deluge._libtorrent import lt
+
+"""
+from deluge.common import VersionSplit, get_version
+from deluge.error import LibtorrentImportError
+
+try:
+    import deluge.libtorrent as lt
+except ImportError:
+    try:
+        import libtorrent as lt
+    except ImportError as ex:
+        raise LibtorrentImportError('No libtorrent library found: %s' % (ex))
+
+
+REQUIRED_VERSION = '1.2.0.0'
+LT_VERSION = lt.__version__
+
+if VersionSplit(LT_VERSION) < VersionSplit(REQUIRED_VERSION):
+    raise LibtorrentImportError(
+        f'Deluge {get_version()} requires libtorrent >= {REQUIRED_VERSION}'
+    )

deluge/argparserbase.py

@@ -0,0 +1,384 @@
+#
+# Copyright (C) 2007 Andrew Resch <andrewresch@gmail.com>
+#
+# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
+# the additional special exception to link portions of this program with the OpenSSL library.
+# See LICENSE for more details.
+#
+
+import argparse
+import logging
+import os
+import platform
+import sys
+import textwrap
+
+import deluge.log
+from deluge import common
+from deluge.configmanager import get_config_dir, set_config_dir
+
+
+def find_subcommand(self, args=None, sys_argv=True):
+    """Find if a subcommand has been supplied.
+
+    Args:
+        args (list, optional): The argument list to search through.
+        sys_argv (bool): Use sys.argv[1:] if args is None.
+
+    Returns:
+        int: Index of the subcommand or '-1' if none found.
+
+    """
+    subcommand_found = -1
+    if args is None:
+        args = sys.argv[1:] if sys_argv is None else []
+
+    for x in self._subparsers._actions:
+        if not isinstance(x, argparse._SubParsersAction):
+            continue
+        for sp_name in x._name_parser_map:
+            if sp_name in args:
+                subcommand_found = args.index(sp_name)
+
+    return subcommand_found
+
+
+def set_default_subparser(self, name, abort_opts=None):
+    """Sets the default argparse subparser.
+
+    Args:
+        name (str): The name of the default subparser.
+        abort_opts (list): The arguments to test for in case no subcommand is found.
+                           If any of the values are found, the default subparser will
+                           not be inserted into sys.argv.
+
+    Returns:
+        list: The arguments found in sys.argv if no subcommand found, else None
+
+    """
+    found_abort_opts = []
+    abort_opts = [] if abort_opts is None else abort_opts
+    test_args = sys.argv[1:]
+    subparser_found = self.find_subcommand(args=test_args)
+
+    for i, arg in enumerate(test_args):
+        if subparser_found == i:
+            break
+        if arg in abort_opts:
+            found_abort_opts.append(arg)
+
+    if subparser_found == -1:
+        if found_abort_opts:
+            # Found one or more of arguments in abort_opts
+            return found_abort_opts
+
+        # insert default in first position, this implies no
+        # global options without a sub_parsers specified
+        sys.argv.insert(1, name)
+
+    return None
+
+
+argparse.ArgumentParser.find_subcommand = find_subcommand
+argparse.ArgumentParser.set_default_subparser = set_default_subparser
+
+
+def _get_version_detail():
+    version_str = '%s\n' % (common.get_version())
+    try:
+        from deluge._libtorrent import LT_VERSION
+
+        version_str += 'libtorrent: %s\n' % LT_VERSION
+    except ImportError:
+        pass
+    version_str += 'Python: %s\n' % platform.python_version()
+    version_str += f'OS: {platform.system()} {common.get_os_version()}\n'
+    return version_str
+
+
+class DelugeTextHelpFormatter(argparse.RawDescriptionHelpFormatter):
+    """Help message formatter which retains formatting of all help text."""
+
+    def _split_lines(self, text, width):
+        """
+        Do not remove whitespaces in string but still wrap text to max width.
+        Instead of passing the entire text to textwrap.wrap, split and pass each
+        line instead. This way list formatting is not mangled by textwrap.wrap.
+        """
+        wrapped_lines = []
+        for line in text.splitlines():
+            wrapped_lines.extend(textwrap.wrap(line, width, subsequent_indent='  '))
+        return wrapped_lines
+
+    def _format_action_invocation(self, action):
+        """
+        Combines the options with comma and displays the argument
+        value only once instead of after both options.
+        Instead of: -s <arg>, --long-opt <arg>
+        Show      : -s, --long-opt <arg>
+
+        """
+        if not action.option_strings:
+            (metavar,) = self._metavar_formatter(action, action.dest)(1)
+            return metavar
+        else:
+            parts = []
+            # if the Optional doesn't take a value, format is:
+            #    -s, --long
+            if action.nargs == 0:
+                parts.extend(action.option_strings)
+
+            # if the Optional takes a value, format is:
+            #    -s, --long ARGS
+            else:
+                default = action.dest.upper()
+                args_string = self._format_args(action, default)
+                opt = ', '.join(action.option_strings)
+                parts.append(f'{opt} {args_string}')
+            return ', '.join(parts)
+
+
+class HelpAction(argparse._HelpAction):
+    def __call__(self, parser, namespace, values, option_string=None):
+        if hasattr(parser, 'subparser'):
+            subparser = getattr(parser, 'subparser')
+            subparser.print_help()
+        else:
+            parser.print_help()
+        parser.exit()
+
+
+class ArgParserBase(argparse.ArgumentParser):
+    def __init__(self, *args, **kwargs):
+        if 'formatter_class' not in kwargs:
+            kwargs['formatter_class'] = lambda prog: DelugeTextHelpFormatter(
+                prog, max_help_position=33, width=90
+            )
+
+        kwargs['add_help'] = kwargs.get('add_help', False)
+        common_help = kwargs.pop('common_help', True)
+        self.log_stream = sys.stdout
+        if 'log_stream' in kwargs:
+            self.log_stream = kwargs['log_stream']
+            del kwargs['log_stream']
+
+        super().__init__(*args, **kwargs)
+
+        self.common_setup = False
+        self.process_arg_group = False
+        self.group = self.add_argument_group(_('Common Options'))
+        if common_help:
+            self.group.add_argument(
+                '-h', '--help', action=HelpAction, help=_('Print this help message')
+            )
+        self.group.add_argument(
+            '-V',
+            '--version',
+            action='version',
+            version='%(prog)s ' + _get_version_detail(),
+            help=_('Print version information'),
+        )
+        self.group.add_argument(
+            '-v',
+            action='version',
+            version='%(prog)s ' + _get_version_detail(),
+            help=argparse.SUPPRESS,
+        )  # Deprecated arg
+        self.group.add_argument(
+            '-c',
+            '--config',
+            metavar='<config>',
+            help=_('Set the config directory path'),
+        )
+        self.group.add_argument(
+            '-l',
+            '--logfile',
+            metavar='<logfile>',
+            help=_('Output to specified logfile instead of stdout'),
+        )
+        self.group.add_argument(
+            '-L',
+            '--loglevel',
+            choices=[level for k in deluge.log.levels for level in (k, k.upper())],
+            help=_('Set the log level (none, error, warning, info, debug)'),
+            metavar='<level>',
+        )
+        self.group.add_argument(
+            '--logrotate',
+            nargs='?',
+            const='2M',
+            metavar='<max-size>',
+            help=_(
+                'Enable logfile rotation, with optional maximum logfile size, '
+                'default: %(const)s (Logfile rotation count is 5)'
+            ),
+        )
+        self.group.add_argument(
+            '-q',
+            '--quiet',
+            action='store_true',
+            help=_('Quieten logging output (Same as `--loglevel none`)'),
+        )
+        self.group.add_argument(
+            '--profile',
+            metavar='<profile-file>',
+            nargs='?',
+            default=False,
+            help=_(
+                'Profile %(prog)s with cProfile. Outputs to stdout '
+                'unless a filename is specified'
+            ),
+        )
+
+    def parse_args(self, args=None):
+        """Parse UI arguments and handle common and process group options.
+
+        Notes:
+            Unknown arguments results in usage text printed and system exit.
+
+        Args:
+            args (list, optional): The arguments to parse.
+
+        Returns:
+            argparse.Namespace: The parsed arguments.
+
+        """
+        options = super().parse_args(args=args)
+        return self._handle_ui_options(options)
+
+    def parse_known_ui_args(self, args, withhold=None):
+        """Parse UI arguments and handle common and process group options without error.
+
+        Args:
+            args (list): The arguments to parse.
+            withhold (list): Values to ignore in the args list.
+
+        Returns:
+            argparse.Namespace: The parsed arguments.
+
+        """
+        if withhold:
+            args = [a for a in args if a not in withhold]
+        options, remaining = super().parse_known_args(args=args)
+        options.remaining = remaining
+        # Handle common and process group options
+        return self._handle_ui_options(options)
+
+    def _handle_ui_options(self, options):
+        """Handle UI common and process group options.
+
+        Args:
+            options (argparse.Namespace): The parsed options.
+
+        Returns:
+            argparse.Namespace: The parsed options.
+
+        """
+        if not self.common_setup:
+            self.common_setup = True
+
+            # Setup the logger
+            if options.quiet:
+                options.loglevel = 'none'
+            if options.loglevel:
+                options.loglevel = options.loglevel.lower()
+
+            logfile_mode = 'w'
+            logrotate = options.logrotate
+            if options.logrotate:
+                logfile_mode = 'a'
+                logrotate = common.parse_human_size(options.logrotate)
+
+            # Setup the logger
+            deluge.log.setup_logger(
+                level=options.loglevel,
+                filename=options.logfile,
+                filemode=logfile_mode,
+                logrotate=logrotate,
+                output_stream=self.log_stream,
+            )
+
+            if options.config:
+                if not set_config_dir(options.config):
+                    log = logging.getLogger(__name__)
+                    log.error('There was an error setting the config dir! Exiting..')
+                    sys.exit(1)
+            else:
+                if not os.path.exists(common.get_default_config_dir()):
+                    os.makedirs(common.get_default_config_dir())
+
+        if self.process_arg_group:
+            self.process_arg_group = False
+            # If donotdaemonize is set, skip process forking.
+            if not (common.windows_check() or options.donotdaemonize):
+                if os.fork():
+                    os._exit(0)
+                os.setsid()
+                # Do second fork
+                if os.fork():
+                    os._exit(0)
+                # Ensure process doesn't keep any directory in use that may prevent a filesystem unmount.
+                os.chdir(get_config_dir())
+
+            # Write pid file before chuid
+            if options.pidfile:
+                with open(options.pidfile, 'w') as _file:
+                    _file.write('%d\n' % os.getpid())
+
+            if not common.windows_check():
+                if options.group:
+                    if not options.group.isdigit():
+                        import grp
+
+                        options.group = grp.getgrnam(options.group)[2]
+                    os.setgid(options.group)
+                if options.user:
+                    if not options.user.isdigit():
+                        import pwd
+
+                        options.user = pwd.getpwnam(options.user)[2]
+                    os.setuid(options.user)
+
+        return options
+
+    def add_process_arg_group(self):
+        """Adds a grouping of common process args to control a daemon to the parser"""
+
+        self.process_arg_group = True
+        self.group = self.add_argument_group(_('Process Control Options'))
+        self.group.add_argument(
+            '-P',
+            '--pidfile',
+            metavar='<pidfile>',
+            action='store',
+            help=_('Pidfile to store the process id'),
+        )
+        if not common.windows_check():
+            self.group.add_argument(
+                '-d',
+                '--do-not-daemonize',
+                dest='donotdaemonize',
+                action='store_true',
+                help=_('Do not daemonize (fork) this process'),
+            )
+            self.group.add_argument(
+                '-f',
+                '--fork',
+                dest='donotdaemonize',
+                action='store_false',
+                help=argparse.SUPPRESS,
+            )  # Deprecated arg
+            self.group.add_argument(
+                '-U',
+                '--user',
+                metavar='<user>',
+                action='store',
+                help=_('Change to this user on startup (Requires root)'),
+            )
+            self.group.add_argument(
+                '-g',
+                '--group',
+                metavar='<group>',
+                action='store',
+                help=_('Change to this group on startup (Requires root)'),
+            )

deluge/bencode.py

@@ -0,0 +1,148 @@
+# The contents of this file are subject to the Python Software Foundation
+# License Version 2.3 (the License).  You may not copy or use this file, in
+# either source code or executable form, except in compliance with the License.
+# You may obtain a copy of the License at http://www.python.org/license.
+#
+# Software distributed under the License is distributed on an AS IS basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the License
+# for the specific language governing rights and limitations under the
+# License.
+
+# Written by Petru Paler
+# Updated by Calum Lind to support Python 3.
+
+
+class BTFailure(Exception):
+    pass
+
+
+DICT_DELIM = b'd'
+END_DELIM = b'e'
+INT_DELIM = b'i'
+LIST_DELIM = b'l'
+BYTE_SEP = b':'
+
+
+def decode_int(x, f):
+    f += 1
+    newf = x.index(END_DELIM, f)
+    n = int(x[f:newf])
+    if x[f : f + 1] == b'-' and x[f + 1 : f + 2] == b'0':
+        raise ValueError
+    elif x[f : f + 1] == b'0' and newf != f + 1:
+        raise ValueError
+    return (n, newf + 1)
+
+
+def decode_string(x, f):
+    colon = x.index(BYTE_SEP, f)
+    n = int(x[f:colon])
+    if x[f : f + 1] == b'0' and colon != f + 1:
+        raise ValueError
+    colon += 1
+    return (x[colon : colon + n], colon + n)
+
+
+def decode_list(x, f):
+    r, f = [], f + 1
+    while x[f : f + 1] != END_DELIM:
+        v, f = decode_func[x[f : f + 1]](x, f)
+        r.append(v)
+    return (r, f + 1)
+
+
+def decode_dict(x, f):
+    r, f = {}, f + 1
+    while x[f : f + 1] != END_DELIM:
+        k, f = decode_string(x, f)
+        r[k], f = decode_func[x[f : f + 1]](x, f)
+    return (r, f + 1)
+
+
+decode_func = {}
+decode_func[LIST_DELIM] = decode_list
+decode_func[DICT_DELIM] = decode_dict
+decode_func[INT_DELIM] = decode_int
+decode_func[b'0'] = decode_string
+decode_func[b'1'] = decode_string
+decode_func[b'2'] = decode_string
+decode_func[b'3'] = decode_string
+decode_func[b'4'] = decode_string
+decode_func[b'5'] = decode_string
+decode_func[b'6'] = decode_string
+decode_func[b'7'] = decode_string
+decode_func[b'8'] = decode_string
+decode_func[b'9'] = decode_string
+
+
+def bdecode(x):
+    try:
+        r, __ = decode_func[x[0:1]](x, 0)
+    except (LookupError, TypeError, ValueError):
+        raise BTFailure('Not a valid bencoded string')
+    else:
+        return r
+
+
+class Bencached:
+
+    __slots__ = ['bencoded']
+
+    def __init__(self, s):
+        self.bencoded = s
+
+
+def encode_bencached(x, r):
+    r.append(x.bencoded)
+
+
+def encode_int(x, r):
+    r.extend((INT_DELIM, str(x).encode('utf8'), END_DELIM))
+
+
+def encode_bool(x, r):
+    encode_int(1 if x else 0, r)
+
+
+def encode_string(x, r):
+    encode_bytes(x.encode('utf8'), r)
+
+
+def encode_bytes(x, r):
+    r.extend((str(len(x)).encode('utf8'), BYTE_SEP, x))
+
+
+def encode_list(x, r):
+    r.append(LIST_DELIM)
+    for i in x:
+        encode_func[type(i)](i, r)
+    r.append(END_DELIM)
+
+
+def encode_dict(x, r):
+    r.append(DICT_DELIM)
+    for k, v in sorted(x.items()):
+        try:
+            k = k.encode('utf8')
+        except AttributeError:
+            pass
+        r.extend((str(len(k)).encode('utf8'), BYTE_SEP, k))
+        encode_func[type(v)](v, r)
+    r.append(END_DELIM)
+
+
+encode_func = {}
+encode_func[Bencached] = encode_bencached
+encode_func[int] = encode_int
+encode_func[list] = encode_list
+encode_func[tuple] = encode_list
+encode_func[dict] = encode_dict
+encode_func[bool] = encode_bool
+encode_func[str] = encode_string
+encode_func[bytes] = encode_bytes
+
+
+def bencode(x):
+    r = []
+    encode_func[type(x)](x, r)
+    return b''.join(r)

deluge/component.py

@@ -0,0 +1,486 @@
+#
+# Copyright (C) 2007-2010 Andrew Resch <andrewresch@gmail.com>
+#
+# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
+# the additional special exception to link portions of this program with the OpenSSL library.
+# See LICENSE for more details.
+#
+
+import logging
+import traceback
+from collections import defaultdict
+
+from twisted.internet import reactor
+from twisted.internet.defer import DeferredList, fail, maybeDeferred, succeed
+from twisted.internet.task import LoopingCall, deferLater
+
+log = logging.getLogger(__name__)
+
+
+class ComponentAlreadyRegistered(Exception):
+    pass
+
+
+class ComponentException(Exception):
+    def __init__(self, message, tb):
+        super().__init__(message)
+        self.message = message
+        self.tb = tb
+
+    def __str__(self):
+        s = super().__str__()
+        return '{}\n{}'.format(s, ''.join(self.tb))
+
+    def __eq__(self, other):
+        if isinstance(other, self.__class__):
+            return self.message == other.message
+        else:
+            return False
+
+    def __ne__(self, other):
+        return not self.__eq__(other)
+
+
+class Component:
+    """Component objects are singletons managed by the :class:`ComponentRegistry`.
+
+    When a new Component object is instantiated, it will be automatically
+    registered with the :class:`ComponentRegistry`.
+
+    The ComponentRegistry has the ability to start, stop, pause and shutdown the
+    components registered with it.
+
+    **Events:**
+
+        **start()** - This method is called when the client has connected to a
+                  Deluge core.
+
+        **stop()** - This method is called when the client has disconnected from a
+                 Deluge core.
+
+        **update()** - This method is called every 1 second by default while the
+                   Componented is in a *Started* state.  The interval can be
+                   specified during instantiation.  The update() timer can be
+                   paused by instructing the :class:`ComponentRegistry` to pause
+                   this Component.
+
+        **shutdown()** - This method is called when the client is exiting.  If the
+                     Component is in a "Started" state when this is called, a
+                     call to stop() will be issued prior to shutdown().
+
+    **States:**
+
+        A Component can be in one of these 5 states.
+
+        **Started** - The Component has been started by the :class:`ComponentRegistry`
+                    and will have it's update timer started.
+
+        **Starting** - The Component has had it's start method called, but it hasn't
+                    fully started yet.
+
+        **Stopped** - The Component has either been stopped or has yet to be started.
+
+        **Stopping** - The Component has had it's stop method called, but it hasn't
+                    fully stopped yet.
+
+        **Paused** - The Component has had it's update timer stopped, but will
+                    still be considered in a Started state.
+
+    """
+
+    def __init__(self, name, interval=1, depend=None):
+        """Initialize component.
+
+        Args:
+            name (str): Name of component.
+            interval (int, optional): The interval in seconds to call the update function.
+            depend (list, optional): The names of components this component depends on.
+
+        """
+        self._component_name = name
+        self._component_interval = interval
+        self._component_depend = depend
+        self._component_state = 'Stopped'
+        self._component_timer = None
+        self._component_starting_deferred = None
+        self._component_stopping_deferred = None
+        _ComponentRegistry.register(self)
+
+    def __del__(self):
+        if _ComponentRegistry:
+            _ComponentRegistry.deregister(self)
+
+    def _component_start_timer(self):
+        if hasattr(self, 'update'):
+            self._component_timer = LoopingCall(self.update)
+            self._component_timer.start(self._component_interval)
+
+    def _component_start(self):
+        def on_start(result):
+            self._component_state = 'Started'
+            self._component_starting_deferred = None
+            self._component_start_timer()
+            return True
+
+        def on_start_fail(result):
+            self._component_state = 'Stopped'
+            self._component_starting_deferred = None
+            log.error(result)
+            return fail(result)
+
+        if self._component_state == 'Stopped':
+            if hasattr(self, 'start'):
+                self._component_state = 'Starting'
+                d = deferLater(reactor, 0, self.start)
+                d.addCallbacks(on_start, on_start_fail)
+                self._component_starting_deferred = d
+            else:
+                d = maybeDeferred(on_start, None)
+        elif self._component_state == 'Starting':
+            return self._component_starting_deferred
+        elif self._component_state == 'Started':
+            d = succeed(True)
+        else:
+            d = fail(
+                ComponentException(
+                    'Trying to start component "%s" but it is '
+                    'not in a stopped state. Current state: %s'
+                    % (self._component_name, self._component_state),
+                    traceback.format_stack(limit=4),
+                )
+            )
+        return d
+
+    def _component_stop(self):
+        def on_stop(result):
+            self._component_state = 'Stopped'
+            if self._component_timer and self._component_timer.running:
+                self._component_timer.stop()
+            return True
+
+        def on_stop_fail(result):
+            self._component_state = 'Started'
+            self._component_stopping_deferred = None
+            log.error(result)
+            return result
+
+        if self._component_state != 'Stopped' and self._component_state != 'Stopping':
+            if hasattr(self, 'stop'):
+                self._component_state = 'Stopping'
+                d = maybeDeferred(self.stop)
+                d.addCallback(on_stop)
+                d.addErrback(on_stop_fail)
+                self._component_stopping_deferred = d
+            else:
+                d = maybeDeferred(on_stop, None)
+
+        if self._component_state == 'Stopping':
+            return self._component_stopping_deferred
+
+        return succeed(None)
+
+    def _component_pause(self):
+        def on_pause(result):
+            self._component_state = 'Paused'
+
+        if self._component_state == 'Started':
+            if self._component_timer and self._component_timer.running:
+                d = maybeDeferred(self._component_timer.stop)
+                d.addCallback(on_pause)
+            else:
+                d = succeed(None)
+        elif self._component_state == 'Paused':
+            d = succeed(None)
+        else:
+            d = fail(
+                ComponentException(
+                    'Trying to pause component "%s" but it is '
+                    'not in a started state. Current state: %s'
+                    % (self._component_name, self._component_state),
+                    traceback.format_stack(limit=4),
+                )
+            )
+        return d
+
+    def _component_resume(self):
+        def on_resume(result):
+            self._component_state = 'Started'
+
+        if self._component_state == 'Paused':
+            d = maybeDeferred(self._component_start_timer)
+            d.addCallback(on_resume)
+        else:
+            d = fail(
+                ComponentException(
+                    'Trying to resume component "%s" but it is '
+                    'not in a paused state. Current state: %s'
+                    % (self._component_name, self._component_state),
+                    traceback.format_stack(limit=4),
+                )
+            )
+        return d
+
+    def _component_shutdown(self):
+        def on_stop(result):
+            if hasattr(self, 'shutdown'):
+                return maybeDeferred(self.shutdown)
+            return succeed(None)
+
+        d = self._component_stop()
+        d.addCallback(on_stop)
+        return d
+
+    def get_state(self):
+        return self._component_state
+
+    def start(self):
+        pass
+
+    def stop(self):
+        pass
+
+    def update(self):
+        pass
+
+    def shutdown(self):
+        pass
+
+
+class ComponentRegistry:
+    """The ComponentRegistry holds a list of currently registered :class:`Component` objects.
+
+    It is used to manage the Components by starting, stopping, pausing and shutting them down.
+    """
+
+    def __init__(self):
+        self.components = {}
+        # Stores all of the components that are dependent on a particular component
+        self.dependents = defaultdict(list)
+
+    def register(self, obj):
+        """Register a component object with the registry.
+
+        Note:
+            This is done automatically when a Component object is instantiated.
+
+        Args:
+            obj (Component): A component object to register.
+
+        Raises:
+            ComponentAlreadyRegistered: If a component with the same name is already registered.
+
+        """
+        name = obj._component_name
+        if name in self.components:
+            raise ComponentAlreadyRegistered(
+                'Component already registered with name %s' % name
+            )
+
+        self.components[obj._component_name] = obj
+        if obj._component_depend:
+            for depend in obj._component_depend:
+                self.dependents[depend].append(name)
+
+    def deregister(self, obj):
+        """Deregister a component from the registry.  A stop will be
+        issued to the component prior to deregistering it.
+
+        Args:
+            obj (Component): a component object to deregister
+
+        Returns:
+            Deferred: a deferred object that will fire once the Component has been
+                successfully deregistered
+
+        """
+        if obj in self.components.values():
+            log.debug('Deregistering Component: %s', obj._component_name)
+            d = self.stop([obj._component_name])
+
+            def on_stop(result, name):
+                # Component may have been removed, so pop to ensure it doesn't fail
+                self.components.pop(name, None)
+
+            return d.addCallback(on_stop, obj._component_name)
+        else:
+            return succeed(None)
+
+    def start(self, names=None):
+        """Start Components, and their dependencies, that are currently in a Stopped state.
+
+        Note:
+            If no names are specified then all registered components will be started.
+
+        Args:
+            names (list): A list of Components to start and their dependencies.
+
+        Returns:
+            Deferred: Fired once all Components have been successfully started.
+
+        """
+        # Start all the components if names is empty
+        if not names:
+            names = list(self.components)
+        elif isinstance(names, str):
+            names = [names]
+
+        def on_depends_started(result, name):
+            return self.components[name]._component_start()
+
+        deferreds = []
+
+        for name in names:
+            if self.components[name]._component_depend:
+                # This component has depends, so we need to start them first.
+                d = self.start(self.components[name]._component_depend)
+                d.addCallback(on_depends_started, name)
+                deferreds.append(d)
+            else:
+                deferreds.append(self.components[name]._component_start())
+
+        return DeferredList(deferreds)
+
+    def stop(self, names=None):
+        """Stop Components that are currently not in a Stopped state.
+
+        Note:
+            If no names are specified then all registered components will be stopped.
+
+        Args:
+            names (list): A list of Components to stop.
+
+        Returns:
+            Deferred: Fired once all Components have been successfully stopped.
+
+        """
+        if not names:
+            names = list(self.components)
+        elif isinstance(names, str):
+            names = [names]
+
+        def on_dependents_stopped(result, name):
+            return self.components[name]._component_stop()
+
+        stopped_in_deferred = set()
+        deferreds = []
+
+        for name in names:
+            if name in stopped_in_deferred:
+                continue
+            if name in self.components:
+                if name in self.dependents:
+                    # If other components depend on this component, stop them first
+                    d = self.stop(self.dependents[name]).addCallback(
+                        on_dependents_stopped, name
+                    )
+                    deferreds.append(d)
+                    stopped_in_deferred.update(self.dependents[name])
+                else:
+                    deferreds.append(self.components[name]._component_stop())
+
+        return DeferredList(deferreds)
+
+    def pause(self, names=None):
+        """Pause Components that are currently in a Started state.
+
+        Note:
+            If no names are specified then all registered components will be paused.
+
+        Args:
+            names (list): A list of Components to pause.
+
+        Returns:
+            Deferred: Fired once all Components have been successfully paused.
+
+        """
+        if not names:
+            names = list(self.components)
+        elif isinstance(names, str):
+            names = [names]
+
+        deferreds = []
+
+        for name in names:
+            if self.components[name]._component_state == 'Started':
+                deferreds.append(self.components[name]._component_pause())
+
+        return DeferredList(deferreds)
+
+    def resume(self, names=None):
+        """Resume Components that are currently in a Paused state.
+
+        Note:
+            If no names are specified then all registered components will be resumed.
+
+        Args:
+            names (list): A list of Components to to resume.
+
+        Returns:
+            Deferred: Fired once all Components have been successfully resumed.
+
+        """
+        if not names:
+            names = list(self.components)
+        elif isinstance(names, str):
+            names = [names]
+
+        deferreds = []
+
+        for name in names:
+            if self.components[name]._component_state == 'Paused':
+                deferreds.append(self.components[name]._component_resume())
+
+        return DeferredList(deferreds)
+
+    def shutdown(self):
+        """Shutdown all Components regardless of state.
+
+        This will call stop() on all the components prior to shutting down. This should be called
+        when the program is exiting to ensure all Components have a chance to properly shutdown.
+
+        Returns:
+            Deferred: Fired once all Components have been successfully shut down.
+
+        """
+
+        def on_stopped(result):
+            return DeferredList(
+                [comp._component_shutdown() for comp in list(self.components.values())]
+            )
+
+        return self.stop(list(self.components)).addCallback(on_stopped)
+
+    def update(self):
+        """Update all Components that are in a Started state."""
+        for component in self.components.items():
+            try:
+                component.update()
+            except BaseException as ex:
+                log.exception(ex)
+
+
+_ComponentRegistry = ComponentRegistry()
+
+deregister = _ComponentRegistry.deregister
+start = _ComponentRegistry.start
+stop = _ComponentRegistry.stop
+pause = _ComponentRegistry.pause
+resume = _ComponentRegistry.resume
+update = _ComponentRegistry.update
+shutdown = _ComponentRegistry.shutdown
+
+
+def get(name):
+    """Return a reference to a component.
+
+    Args:
+        name (str): The Component name to get.
+
+    Returns:
+        Component: The Component object.
+
+    Raises:
+        KeyError: If the Component does not exist.
+
+    """
+    return _ComponentRegistry.components[name]

deluge/config.py

@@ -0,0 +1,568 @@
+#
+# Copyright (C) 2008 Andrew Resch <andrewresch@gmail.com>
+#
+# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
+# the additional special exception to link portions of this program with the OpenSSL library.
+# See LICENSE for more details.
+#
+
+"""
+Deluge Config Module
+
+This module is used for loading and saving of configuration files.. or anything
+really.
+
+The format of the config file is two json encoded dicts:
+
+<version dict>
+<content dict>
+
+The version dict contains two keys: file and format.  The format version is
+controlled by the Config class.  It should only be changed when anything below
+it is changed directly by the Config class.  An example of this would be if we
+changed the serializer for the content to something different.
+
+The config file version is changed by the 'owner' of the config file.  This is
+to signify that there is a change in the naming of some config keys or something
+similar along those lines.
+
+The content is simply the dict to be saved and will be serialized before being
+written.
+
+Converting
+
+Since the format of the config could change, there needs to be a way to have
+the Config object convert to newer formats.  To do this, you will need to
+register conversion functions for various versions of the config file. Note that
+this can only be done for the 'config file version' and not for the 'format'
+version as this will be done internally.
+
+"""
+import json
+import logging
+import os
+import pickle
+import shutil
+from codecs import getwriter
+from tempfile import NamedTemporaryFile
+
+from deluge.common import JSON_FORMAT, get_default_config_dir
+
+log = logging.getLogger(__name__)
+
+
+def find_json_objects(text, decoder=json.JSONDecoder()):
+    """Find json objects in text.
+
+    Args:
+        text (str): The text to find json objects within.
+
+    Returns:
+        list: A list of tuples containing start and end locations of json
+            objects in the text. e.g. [(start, end), ...]
+
+
+    """
+    objects = []
+    offset = 0
+    while True:
+        try:
+            start = text.index('{', offset)
+        except ValueError:
+            break
+
+        try:
+            __, index = decoder.raw_decode(text[start:])
+        except json.decoder.JSONDecodeError:
+            offset = start + 1
+        else:
+            offset = start + index
+            objects.append((start, offset))
+
+    return objects
+
+
+def cast_to_existing_type(value, old_value):
+    """Attempt to convert new value type to match old value type"""
+    types_match = isinstance(old_value, (type(None), type(value)))
+    if value is not None and not types_match:
+        old_type = type(old_value)
+        # Skip convert to bytes since requires knowledge of encoding and value should
+        # be unicode anyway.
+        if old_type is bytes:
+            return value
+
+        return old_type(value)
+
+    return value
+
+
+class Config:
+    """This class is used to access/create/modify config files.
+
+    Args:
+        filename (str): The config filename.
+        defaults (dict): The default config values to insert before loading the config file.
+        config_dir (str): the path to the config directory.
+        file_version (int): The file format for the default config values when creating
+            a fresh config. This value should be increased whenever a new migration function is
+            setup to convert old config files. (default: 1)
+        log_mask_funcs (dict): A dict of key:function, used to mask sensitive
+            key values (e.g. passwords) when logging is enabled.
+
+    """
+
+    def __init__(
+        self,
+        filename,
+        defaults=None,
+        config_dir=None,
+        file_version=1,
+        log_mask_funcs=None,
+    ):
+        self.__config = {}
+        self.__set_functions = {}
+        self.__change_callbacks = []
+        self.__log_mask_funcs = log_mask_funcs if log_mask_funcs else {}
+
+        # These hold the version numbers and they will be set when loaded
+        self.__version = {'format': 1, 'file': file_version}
+
+        # This will get set with a reactor.callLater whenever a config option
+        # is set.
+        self._save_timer = None
+
+        if defaults:
+            for key, value in defaults.items():
+                self.set_item(key, value, default=True)
+
+        # Load the config from file in the config_dir
+        if config_dir:
+            self.__config_file = os.path.join(config_dir, filename)
+        else:
+            self.__config_file = get_default_config_dir(filename)
+
+        self.load()
+
+    def callLater(self, period, func, *args, **kwargs):  # noqa: N802 ignore camelCase
+        """Wrapper around reactor.callLater for test purpose."""
+        from twisted.internet import reactor
+
+        return reactor.callLater(period, func, *args, **kwargs)
+
+    def __contains__(self, item):
+        return item in self.__config
+
+    def __setitem__(self, key, value):
+        """See set_item"""
+
+        return self.set_item(key, value)
+
+    def set_item(self, key, value, default=False):
+        """Sets item 'key' to 'value' in the config dictionary.
+
+        Does not allow changing the item's type unless it is None.
+
+        If the types do not match, it will attempt to convert it to the
+        set type before raising a ValueError.
+
+        Args:
+            key (str): Item to change to change.
+            value (any): The value to change item to, must be same type as what is
+                currently in the config.
+            default (optional, bool): When setting a default value skip func or save
+                callbacks.
+
+        Raises:
+            ValueError: Raised when the type of value is not the same as what is
+                currently in the config and it could not convert the value.
+
+        Examples:
+            >>> config = Config('test.conf')
+            >>> config['test'] = 5
+            >>> config['test']
+            5
+
+        """
+        if isinstance(value, bytes):
+            value = value.decode()
+
+        if key in self.__config:
+            try:
+                value = cast_to_existing_type(value, self.__config[key])
+            except ValueError:
+                log.warning('Value Type "%s" invalid for key: %s', type(value), key)
+                raise
+            else:
+                if self.__config[key] == value:
+                    return
+
+        if log.isEnabledFor(logging.DEBUG):
+            if key in self.__log_mask_funcs:
+                value = self.__log_mask_funcs[key](value)
+            log.debug(
+                'Setting key "%s" to: %s (of type: %s)',
+                key,
+                value,
+                type(value),
+            )
+        self.__config[key] = value
+
+        # Skip save or func callbacks if setting default value for keys
+        if default:
+            return
+
+        # Run the set_function for this key if any
+        for func in self.__set_functions.get(key, []):
+            self.callLater(0, func, key, value)
+
+        try:
+
+            def do_change_callbacks(key, value):
+                for func in self.__change_callbacks:
+                    func(key, value)
+
+            self.callLater(0, do_change_callbacks, key, value)
+        except Exception:
+            pass
+
+        # We set the save_timer for 5 seconds if not already set
+        if not self._save_timer or not self._save_timer.active():
+            self._save_timer = self.callLater(5, self.save)
+
+    def __getitem__(self, key):
+        """See get_item"""
+        return self.get_item(key)
+
+    def get_item(self, key):
+        """Gets the value of item 'key'.
+
+        Args:
+            key (str): The item for which you want it's value.
+
+        Returns:
+            any: The value of item 'key'.
+
+        Raises:
+            ValueError: If 'key' is not in the config dictionary.
+
+        Examples:
+            >>> config = Config('test.conf', defaults={'test': 5})
+            >>> config['test']
+            5
+
+        """
+        return self.__config[key]
+
+    def get(self, key, default=None):
+        """Gets the value of item 'key' if key is in the config, else default.
+
+        If default is not given, it defaults to None, so that this method
+        never raises a KeyError.
+
+        Args:
+            key (str): the item for which you want it's value
+            default (any): the default value if key is missing
+
+        Returns:
+            any: The value of item 'key' or default.
+
+        Examples:
+            >>> config = Config('test.conf', defaults={'test': 5})
+            >>> config.get('test', 10)
+            5
+            >>> config.get('bad_key', 10)
+            10
+
+        """
+        try:
+            return self.get_item(key)
+        except KeyError:
+            return default
+
+    def __delitem__(self, key):
+        """
+        See
+        :meth:`del_item`
+        """
+        self.del_item(key)
+
+    def del_item(self, key):
+        """Deletes item with a specific key from the configuration.
+
+        Args:
+            key (str): The item which you wish to delete.
+
+        Raises:
+            ValueError: If 'key' is not in the config dictionary.
+
+        Examples:
+            >>> config = Config('test.conf', defaults={'test': 5})
+            >>> del config['test']
+
+        """
+
+        del self.__config[key]
+
+        # We set the save_timer for 5 seconds if not already set
+        if not self._save_timer or not self._save_timer.active():
+            self._save_timer = self.callLater(5, self.save)
+
+    def register_change_callback(self, callback):
+        """Registers a callback function for any changed value.
+
+        Will be called when any value is changed in the config dictionary.
+
+        Args:
+            callback (func): The function to call with parameters: f(key, value).
+
+        Examples:
+            >>> config = Config('test.conf', defaults={'test': 5})
+            >>> def cb(key, value):
+            ...     print key, value
+            ...
+            >>> config.register_change_callback(cb)
+
+        """
+        self.__change_callbacks.append(callback)
+
+    def register_set_function(self, key, function, apply_now=True):
+        """Register a function to be called when a config value changes.
+
+        Args:
+            key (str): The item to monitor for change.
+            function (func): The function to call when the value changes, f(key, value).
+            apply_now (bool): If True, the function will be called immediately after it's registered.
+
+        Examples:
+            >>> config = Config('test.conf', defaults={'test': 5})
+            >>> def cb(key, value):
+            ...     print key, value
+            ...
+            >>> config.register_set_function('test', cb, apply_now=True)
+            test 5
+
+        """
+        log.debug('Registering function for %s key..', key)
+        if key not in self.__set_functions:
+            self.__set_functions[key] = []
+
+        self.__set_functions[key].append(function)
+
+        # Run the function now if apply_now is set
+        if apply_now:
+            function(key, self.__config[key])
+
+    def apply_all(self):
+        """Calls all set functions.
+
+        Examples:
+            >>> config = Config('test.conf', defaults={'test': 5})
+            >>> def cb(key, value):
+            ...     print key, value
+            ...
+            >>> config.register_set_function('test', cb, apply_now=False)
+            >>> config.apply_all()
+            test 5
+
+        """
+        log.debug('Calling all set functions..')
+        for key, value in self.__set_functions.items():
+            for func in value:
+                func(key, self.__config[key])
+
+    def apply_set_functions(self, key):
+        """Calls set functions for `:param:key`.
+
+        Args:
+            key (str): the config key
+
+        """
+        log.debug('Calling set functions for key %s..', key)
+        if key in self.__set_functions:
+            for func in self.__set_functions[key]:
+                func(key, self.__config[key])
+
+    def load(self, filename=None):
+        """Load a config file.
+
+        Args:
+            filename (str): If None, uses filename set in object initialization
+
+        """
+        if not filename:
+            filename = self.__config_file
+
+        try:
+            with open(filename, encoding='utf8') as _file:
+                data = _file.read()
+        except OSError as ex:
+            log.warning('Unable to open config file %s: %s', filename, ex)
+            return
+
+        objects = find_json_objects(data)
+
+        if not len(objects):
+            # No json objects found, try depickling it
+            try:
+                self.__config.update(pickle.loads(data))
+            except Exception as ex:
+                log.exception(ex)
+                log.warning('Unable to load config file: %s', filename)
+        elif len(objects) == 1:
+            start, end = objects[0]
+            try:
+                self.__config.update(json.loads(data[start:end]))
+            except Exception as ex:
+                log.exception(ex)
+                log.warning('Unable to load config file: %s', filename)
+        elif len(objects) == 2:
+            try:
+                start, end = objects[0]
+                self.__version.update(json.loads(data[start:end]))
+                start, end = objects[1]
+                self.__config.update(json.loads(data[start:end]))
+            except Exception as ex:
+                log.exception(ex)
+                log.warning('Unable to load config file: %s', filename)
+
+        if not log.isEnabledFor(logging.DEBUG):
+            return
+
+        config = self.__config
+        if self.__log_mask_funcs:
+            config = {
+                key: self.__log_mask_funcs[key](config[key])
+                if key in self.__log_mask_funcs
+                else config[key]
+                for key in config
+            }
+
+        log.debug(
+            'Config %s version: %s.%s loaded: %s',
+            filename,
+            self.__version['format'],
+            self.__version['file'],
+            config,
+        )
+
+    def save(self, filename=None):
+        """Save configuration to disk.
+
+        Args:
+            filename (str): If None, uses filename set in object initialization
+
+        Returns:
+            bool: Whether or not the save succeeded.
+
+        """
+        if not filename:
+            filename = self.__config_file
+        # Check to see if the current config differs from the one on disk
+        # We will only write a new config file if there is a difference
+        try:
+            with open(filename, encoding='utf8') as _file:
+                data = _file.read()
+            objects = find_json_objects(data)
+            start, end = objects[0]
+            version = json.loads(data[start:end])
+            start, end = objects[1]
+            loaded_data = json.loads(data[start:end])
+            if self.__config == loaded_data and self.__version == version:
+                # The config has not changed so lets just return
+                if self._save_timer and self._save_timer.active():
+                    self._save_timer.cancel()
+                return True
+        except (OSError, IndexError) as ex:
+            log.warning('Unable to open config file: %s because: %s', filename, ex)
+
+        # Save the new config and make sure it's written to disk
+        try:
+            with NamedTemporaryFile(
+                prefix=os.path.basename(filename) + '.', delete=False
+            ) as _file:
+                filename_tmp = _file.name
+                log.debug('Saving new config file %s', filename_tmp)
+                json.dump(self.__version, getwriter('utf8')(_file), **JSON_FORMAT)
+                json.dump(self.__config, getwriter('utf8')(_file), **JSON_FORMAT)
+                _file.flush()
+                os.fsync(_file.fileno())
+        except OSError as ex:
+            log.error('Error writing new config file: %s', ex)
+            return False
+
+        # Resolve symlinked config files before backing up and saving.
+        filename = os.path.realpath(filename)
+
+        # Make a backup of the old config
+        try:
+            log.debug('Backing up old config file to %s.bak', filename)
+            shutil.move(filename, filename + '.bak')
+        except OSError as ex:
+            log.warning('Unable to backup old config: %s', ex)
+
+        # The new config file has been written successfully, so let's move it over
+        # the existing one.
+        try:
+            log.debug('Moving new config file %s to %s', filename_tmp, filename)
+            shutil.move(filename_tmp, filename)
+        except OSError as ex:
+            log.error('Error moving new config file: %s', ex)
+            return False
+        else:
+            return True
+        finally:
+            if self._save_timer and self._save_timer.active():
+                self._save_timer.cancel()
+
+    def run_converter(self, input_range, output_version, func):
+        """Runs a function that will convert file versions.
+
+        Args:
+            input_range (tuple): (int, int) The range of input versions this function will accept.
+            output_version (int): The version this function will convert to.
+            func (func): The function that will do the conversion, it will take the config
+                dict as an argument and return the augmented dict.
+
+        Raises:
+            ValueError: If output_version is less than the input_range.
+
+        """
+        if output_version in input_range or output_version <= max(input_range):
+            raise ValueError('output_version needs to be greater than input_range')
+
+        if self.__version['file'] not in input_range:
+            log.debug(
+                'File version %s is not in input_range %s, ignoring converter function..',
+                self.__version['file'],
+                input_range,
+            )
+            return
+
+        try:
+            self.__config = func(self.__config)
+        except Exception as ex:
+            log.exception(ex)
+            log.error(
+                'There was an exception try to convert config file %s %s to %s',
+                self.__config_file,
+                self.__version['file'],
+                output_version,
+            )
+            raise ex
+        else:
+            self.__version['file'] = output_version
+            self.save()
+
+    @property
+    def config_file(self):
+        return self.__config_file
+
+    @property
+    def config(self):
+        """The config dictionary"""
+        return self.__config
+
+    @config.deleter
+    def config(self):
+        return self.save()

deluge/configmanager.py

@@ -0,0 +1,127 @@
+#
+# Copyright (C) 2007 Andrew Resch <andrewresch@gmail.com>
+#
+# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
+# the additional special exception to link portions of this program with the OpenSSL library.
+# See LICENSE for more details.
+#
+
+import logging
+import os
+
+import deluge.common
+import deluge.log
+from deluge.config import Config
+
+log = logging.getLogger(__name__)
+
+
+class _ConfigManager:
+    def __init__(self):
+        log.debug('ConfigManager started..')
+        self.config_files = {}
+        self.__config_directory = None
+
+    @property
+    def config_directory(self):
+        if self.__config_directory is None:
+            self.__config_directory = deluge.common.get_default_config_dir()
+        return self.__config_directory
+
+    def __del__(self):
+        del self.config_files
+
+    def set_config_dir(self, directory):
+        """
+        Sets the config directory.
+
+        :param directory: str, the directory where the config info should be
+
+        :returns bool: True if successfully changed directory, False if not
+        """
+
+        if not directory:
+            return False
+
+        # Ensure absolute dirpath
+        directory = os.path.abspath(directory)
+
+        log.info('Setting config directory to: %s', directory)
+        if not os.path.exists(directory):
+            # Try to create the config folder if it doesn't exist
+            try:
+                os.makedirs(directory)
+            except OSError as ex:
+                log.error('Unable to make config directory: %s', ex)
+                return False
+        elif not os.path.isdir(directory):
+            log.error('Config directory needs to be a directory!')
+            return False
+
+        self.__config_directory = directory
+
+        # Reset the config_files so we don't get config from old config folder
+        # XXX: Probably should have it go through the config_files dict and try
+        # to reload based on the new config directory
+        self.save()
+        self.config_files = {}
+        deluge.log.tweak_logging_levels()
+
+        return True
+
+    def get_config_dir(self):
+        return self.config_directory
+
+    def close(self, config):
+        """Closes a config file."""
+        try:
+            del self.config_files[config]
+        except KeyError:
+            pass
+
+    def save(self):
+        """Saves all the configs to disk."""
+        for value in self.config_files.values():
+            value.save()
+        # We need to return True to keep the timer active
+        return True
+
+    def get_config(self, config_file, defaults=None, file_version=1):
+        """Get a reference to the Config object for this filename"""
+        log.debug('Getting config: %s', config_file)
+        # Create the config object if not already created
+        if config_file not in self.config_files:
+            self.config_files[config_file] = Config(
+                config_file,
+                defaults,
+                config_dir=self.config_directory,
+                file_version=file_version,
+            )
+
+        return self.config_files[config_file]
+
+
+# Singleton functions
+_configmanager = _ConfigManager()
+
+
+def ConfigManager(config, defaults=None, file_version=1):  # NOQA: N802
+    return _configmanager.get_config(
+        config, defaults=defaults, file_version=file_version
+    )
+
+
+def set_config_dir(directory):
+    """Sets the config directory, else just uses default"""
+    return _configmanager.set_config_dir(deluge.common.decode_bytes(directory))
+
+
+def get_config_dir(filename=None):
+    if filename is not None:
+        return os.path.join(_configmanager.get_config_dir(), filename)
+    else:
+        return _configmanager.get_config_dir()
+
+
+def close(config):
+    return _configmanager.close(config)

deluge/conftest.py

@@ -0,0 +1,192 @@
+#
+# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
+# the additional special exception to link portions of this program with the OpenSSL library.
+# See LICENSE for more details.
+#
+
+import tempfile
+import warnings
+from unittest.mock import Mock, patch
+
+import pytest
+import pytest_twisted
+from twisted.internet import reactor
+from twisted.internet.defer import Deferred, maybeDeferred
+from twisted.internet.error import CannotListenError
+from twisted.python.failure import Failure
+
+import deluge.component as _component
+import deluge.configmanager
+from deluge.common import get_localhost_auth
+from deluge.tests import common
+from deluge.ui.client import client as _client
+
+DEFAULT_LISTEN_PORT = 58900
+
+
+@pytest.fixture
+def listen_port(request):
+    if request and 'daemon' in request.fixturenames:
+        try:
+            return request.getfixturevalue('daemon').listen_port
+        except Exception:
+            pass
+    return DEFAULT_LISTEN_PORT
+
+
+@pytest.fixture
+def mock_callback():
+    """Returns a `Mock` object which can be registered as a callback to test against.
+
+    If callback was not called within `timeout` seconds, it will raise a TimeoutError.
+    The returned Mock instance will have a `deferred` attribute which will complete when the callback has been called.
+    """
+
+    def reset():
+        if mock.called:
+            original_reset_mock()
+        deferred = Deferred()
+        deferred.addTimeout(0.5, reactor)
+        mock.side_effect = lambda *args, **kw: deferred.callback((args, kw))
+        mock.deferred = deferred
+
+    mock = Mock()
+    original_reset_mock = mock.reset_mock
+    mock.reset_mock = reset
+    mock.reset_mock()
+    return mock
+
+
+@pytest.fixture
+def config_dir(tmp_path):
+    deluge.configmanager.set_config_dir(tmp_path)
+    yield tmp_path
+
+
+@pytest_twisted.async_yield_fixture()
+async def client(request, config_dir, monkeypatch, listen_port):
+    # monkeypatch.setattr(
+    #     _client, 'connect', functools.partial(_client.connect, port=listen_port)
+    # )
+    try:
+        username, password = get_localhost_auth()
+    except Exception:
+        username, password = '', ''
+    await _client.connect(
+        'localhost',
+        port=listen_port,
+        username=username,
+        password=password,
+    )
+    yield _client
+    if _client.connected():
+        await _client.disconnect()
+
+
+@pytest_twisted.async_yield_fixture
+async def daemon(request, config_dir):
+    listen_port = DEFAULT_LISTEN_PORT
+    logfile = f'daemon_{request.node.name}.log'
+    if hasattr(request.cls, 'daemon_custom_script'):
+        custom_script = request.cls.daemon_custom_script
+    else:
+        custom_script = ''
+
+    for dummy in range(10):
+        try:
+            d, daemon = common.start_core(
+                listen_port=listen_port,
+                logfile=logfile,
+                timeout=5,
+                timeout_msg='Timeout!',
+                custom_script=custom_script,
+                print_stdout=True,
+                print_stderr=True,
+                config_directory=config_dir,
+            )
+            await d
+        except CannotListenError as ex:
+            exception_error = ex
+            listen_port += 1
+        except (KeyboardInterrupt, SystemExit):
+            raise
+        else:
+            break
+    else:
+        raise exception_error
+    daemon.listen_port = listen_port
+    yield daemon
+    await daemon.kill()
+
+
+@pytest.fixture(autouse=True)
+def common_fixture(config_dir, request, monkeypatch, listen_port):
+    """Adds some instance attributes to test classes for backwards compatibility with old testing."""
+
+    def fail(self, reason):
+        if isinstance(reason, Failure):
+            reason = reason.value
+        return pytest.fail(str(reason))
+
+    if request.instance:
+        request.instance.patch = monkeypatch.setattr
+        request.instance.config_dir = config_dir
+        request.instance.listen_port = listen_port
+        request.instance.id = lambda: request.node.name
+        request.cls.fail = fail
+
+
+@pytest_twisted.async_yield_fixture(scope='function')
+async def component(request):
+    """Verify component registry is clean, and clean up after test."""
+    if len(_component._ComponentRegistry.components) != 0:
+        warnings.warn(
+            'The component._ComponentRegistry.components is not empty on test setup.\n'
+            'This is probably caused by another test that did not clean up after finishing!: %s'
+            % _component._ComponentRegistry.components
+        )
+
+    yield _component
+
+    await _component.shutdown()
+    _component._ComponentRegistry.components.clear()
+    _component._ComponentRegistry.dependents.clear()
+
+
+@pytest_twisted.async_yield_fixture(scope='function')
+async def base_fixture(common_fixture, component, request):
+    """This fixture is autoused on all tests that subclass BaseTestCase"""
+    self = request.instance
+
+    if hasattr(self, 'set_up'):
+        try:
+            await maybeDeferred(self.set_up)
+        except Exception as exc:
+            warnings.warn('Error caught in test setup!\n%s' % exc)
+            pytest.fail('Error caught in test setup!\n%s' % exc)
+
+    yield
+
+    if hasattr(self, 'tear_down'):
+        try:
+            await maybeDeferred(self.tear_down)
+        except Exception as exc:
+            pytest.fail('Error caught in test teardown!\n%s' % exc)
+
+
+@pytest.mark.usefixtures('base_fixture')
+class BaseTestCase:
+    """This is the base class that should be used for all test classes
+    that create classes that inherit from deluge.component.Component. It
+    ensures that the component registry has been cleaned up when tests
+    have finished.
+
+    """
+
+
+@pytest.fixture
+def mock_mkstemp(tmp_path):
+    """Return known tempfile location to verify file deleted"""
+    tmp_file = tempfile.mkstemp(dir=tmp_path)
+    with patch('tempfile.mkstemp', return_value=tmp_file):
+        yield tmp_file

deluge/core/alertmanager.py

@@ -0,0 +1,142 @@
+#
+# Copyright (C) 2007-2009 Andrew Resch <andrewresch@gmail.com>
+#
+# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
+# the additional special exception to link portions of this program with the OpenSSL library.
+# See LICENSE for more details.
+#
+
+"""
+
+The AlertManager handles all the libtorrent alerts.
+
+This should typically only be used by the Core. Plugins should utilize the
+`:mod:EventManager` for similar functionality.
+
+"""
+import logging
+from types import SimpleNamespace
+
+from twisted.internet import reactor
+
+import deluge.component as component
+from deluge._libtorrent import lt
+from deluge.common import decode_bytes
+
+log = logging.getLogger(__name__)
+
+
+class AlertManager(component.Component):
+    """AlertManager fetches and processes libtorrent alerts"""
+
+    def __init__(self):
+        log.debug('AlertManager init...')
+        component.Component.__init__(self, 'AlertManager', interval=0.3)
+        self.session = component.get('Core').session
+
+        # Increase the alert queue size so that alerts don't get lost.
+        self.alert_queue_size = 10000
+        self.set_alert_queue_size(self.alert_queue_size)
+
+        alert_mask = (
+            lt.alert.category_t.error_notification
+            | lt.alert.category_t.port_mapping_notification
+            | lt.alert.category_t.storage_notification
+            | lt.alert.category_t.tracker_notification
+            | lt.alert.category_t.status_notification
+            | lt.alert.category_t.ip_block_notification
+            | lt.alert.category_t.performance_warning
+            | lt.alert.category_t.file_progress_notification
+        )
+
+        self.session.apply_settings({'alert_mask': alert_mask})
+
+        # handlers is a dictionary of lists {"alert_type": [handler1,h2,..]}
+        self.handlers = {}
+        self.delayed_calls = []
+
+    def update(self):
+        self.delayed_calls = [dc for dc in self.delayed_calls if dc.active()]
+        self.handle_alerts()
+
+    def stop(self):
+        for delayed_call in self.delayed_calls:
+            if delayed_call.active():
+                delayed_call.cancel()
+        self.delayed_calls = []
+
+    def register_handler(self, alert_type, handler):
+        """
+        Registers a function that will be called when 'alert_type' is pop'd
+        in handle_alerts.  The handler function should look like: handler(alert)
+        Where 'alert' is the actual alert object from libtorrent.
+
+        :param alert_type: str, this is string representation of the alert name
+        :param handler: func(alert), the function to be called when the alert is raised
+        """
+        if alert_type not in self.handlers:
+            # There is no entry for this alert type yet, so lets make it with an
+            # empty list.
+            self.handlers[alert_type] = []
+
+        # Append the handler to the list in the handlers dictionary
+        self.handlers[alert_type].append(handler)
+        log.debug('Registered handler for alert %s', alert_type)
+
+    def deregister_handler(self, handler):
+        """
+        De-registers the `:param:handler` function from all alert types.
+
+        :param handler: func, the handler function to deregister
+        """
+        # Iterate through all handlers and remove 'handler' where found
+        for (dummy_key, value) in self.handlers.items():
+            if handler in value:
+                # Handler is in this alert type list
+                value.remove(handler)
+
+    def handle_alerts(self):
+        """
+        Pops all libtorrent alerts in the session queue and handles them appropriately.
+        """
+        alerts = self.session.pop_alerts()
+        if not alerts:
+            return
+
+        num_alerts = len(alerts)
+        if log.isEnabledFor(logging.DEBUG):
+            log.debug('Alerts queued: %s', num_alerts)
+        if num_alerts > 0.9 * self.alert_queue_size:
+            log.warning(
+                'Warning total alerts queued, %s, passes 90%% of queue size.',
+                num_alerts,
+            )
+
+        # Loop through all alerts in the queue
+        for alert in alerts:
+            alert_type = type(alert).__name__
+            # Display the alert message
+            if log.isEnabledFor(logging.DEBUG):
+                log.debug('%s: %s', alert_type, decode_bytes(alert.message()))
+            # Call any handlers for this alert type
+            if alert_type in self.handlers:
+                for handler in self.handlers[alert_type]:
+                    if log.isEnabledFor(logging.DEBUG):
+                        log.debug('Handling alert: %s', alert_type)
+                    # Copy alert attributes
+                    alert_copy = SimpleNamespace(
+                        **{
+                            attr: getattr(alert, attr)
+                            for attr in dir(alert)
+                            if not attr.startswith('__')
+                        }
+                    )
+                    self.delayed_calls.append(reactor.callLater(0, handler, alert_copy))
+
+    def set_alert_queue_size(self, queue_size):
+        """Sets the maximum size of the libtorrent alert queue"""
+        log.info('Alert Queue Size set to %s', queue_size)
+        self.alert_queue_size = queue_size
+        component.get('Core').apply_session_setting(
+            'alert_queue_size', self.alert_queue_size
+        )

deluge/core/authmanager.py

@@ -0,0 +1,285 @@
+#
+# Copyright (C) 2009 Andrew Resch <andrewresch@gmail.com>
+# Copyright (C) 2011 Pedro Algarvio <pedro@algarvio.me>
+#
+# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
+# the additional special exception to link portions of this program with the OpenSSL library.
+# See LICENSE for more details.
+#
+
+import logging
+import os
+import shutil
+
+import deluge.component as component
+import deluge.configmanager as configmanager
+from deluge.common import (
+    AUTH_LEVEL_ADMIN,
+    AUTH_LEVEL_DEFAULT,
+    AUTH_LEVEL_NONE,
+    AUTH_LEVEL_NORMAL,
+    AUTH_LEVEL_READONLY,
+    create_localclient_account,
+)
+from deluge.error import AuthenticationRequired, AuthManagerError, BadLoginError
+
+log = logging.getLogger(__name__)
+
+AUTH_LEVELS_MAPPING = {
+    'NONE': AUTH_LEVEL_NONE,
+    'READONLY': AUTH_LEVEL_READONLY,
+    'DEFAULT': AUTH_LEVEL_DEFAULT,
+    'NORMAL': AUTH_LEVEL_NORMAL,
+    'ADMIN': AUTH_LEVEL_ADMIN,
+}
+AUTH_LEVELS_MAPPING_REVERSE = {v: k for k, v in AUTH_LEVELS_MAPPING.items()}
+
+
+class Account:
+    __slots__ = ('username', 'password', 'authlevel')
+
+    def __init__(self, username, password, authlevel):
+        self.username = username
+        self.password = password
+        self.authlevel = authlevel
+
+    def data(self):
+        return {
+            'username': self.username,
+            'password': self.password,
+            'authlevel': AUTH_LEVELS_MAPPING_REVERSE[self.authlevel],
+            'authlevel_int': self.authlevel,
+        }
+
+    def __repr__(self):
+        return '<Account username="{username}" authlevel={authlevel}>'.format(
+            username=self.username,
+            authlevel=self.authlevel,
+        )
+
+
+class AuthManager(component.Component):
+    def __init__(self):
+        component.Component.__init__(self, 'AuthManager', interval=10)
+        self.__auth = {}
+        self.__auth_modification_time = None
+
+    def start(self):
+        self.__load_auth_file()
+
+    def stop(self):
+        self.__auth = {}
+
+    def shutdown(self):
+        pass
+
+    def update(self):
+        auth_file = configmanager.get_config_dir('auth')
+        # Check for auth file and create if necessary
+        if not os.path.isfile(auth_file):
+            log.info('Authfile not found, recreating it.')
+            self.__load_auth_file()
+            return
+
+        auth_file_modification_time = os.stat(auth_file).st_mtime
+        if self.__auth_modification_time != auth_file_modification_time:
+            log.info('Auth file changed, reloading it!')
+            self.__load_auth_file()
+
+    def authorize(self, username, password):
+        """Authorizes users based on username and password.
+
+        Args:
+            username (str): Username
+            password (str): Password
+
+        Returns:
+            int: The auth level for this user.
+
+        Raises:
+            AuthenticationRequired: If additional details are required to authenticate.
+            BadLoginError: If the username does not exist or password does not match.
+
+        """
+        if not username:
+            raise AuthenticationRequired(
+                'Username and Password are required.', username
+            )
+
+        if username not in self.__auth:
+            # Let's try to re-load the file.. Maybe it's been updated
+            self.__load_auth_file()
+            if username not in self.__auth:
+                raise BadLoginError('Username does not exist', username)
+
+        if self.__auth[username].password == password:
+            # Return the users auth level
+            return self.__auth[username].authlevel
+        elif not password and self.__auth[username].password:
+            raise AuthenticationRequired('Password is required', username)
+        else:
+            raise BadLoginError('Password does not match', username)
+
+    def has_account(self, username):
+        return username in self.__auth
+
+    def get_known_accounts(self):
+        """Returns a list of known deluge usernames."""
+        self.__load_auth_file()
+        return [account.data() for account in self.__auth.values()]
+
+    def create_account(self, username, password, authlevel):
+        if username in self.__auth:
+            raise AuthManagerError('Username in use.', username)
+        if authlevel not in AUTH_LEVELS_MAPPING:
+            raise AuthManagerError('Invalid auth level: %s' % authlevel)
+        try:
+            self.__auth[username] = Account(
+                username, password, AUTH_LEVELS_MAPPING[authlevel]
+            )
+            self.write_auth_file()
+            return True
+        except Exception as ex:
+            log.exception(ex)
+            raise ex
+
+    def update_account(self, username, password, authlevel):
+        if username not in self.__auth:
+            raise AuthManagerError('Username not known', username)
+        if authlevel not in AUTH_LEVELS_MAPPING:
+            raise AuthManagerError('Invalid auth level: %s' % authlevel)
+        try:
+            self.__auth[username].username = username
+            self.__auth[username].password = password
+            self.__auth[username].authlevel = AUTH_LEVELS_MAPPING[authlevel]
+            self.write_auth_file()
+            return True
+        except Exception as ex:
+            log.exception(ex)
+            raise ex
+
+    def remove_account(self, username):
+        if username not in self.__auth:
+            raise AuthManagerError('Username not known', username)
+        elif username == component.get('RPCServer').get_session_user():
+            raise AuthManagerError(
+                'You cannot delete your own account while logged in!', username
+            )
+
+        del self.__auth[username]
+        self.write_auth_file()
+        return True
+
+    def write_auth_file(self):
+        filename = 'auth'
+        filepath = os.path.join(configmanager.get_config_dir(), filename)
+        filepath_bak = filepath + '.bak'
+        filepath_tmp = filepath + '.tmp'
+
+        try:
+            if os.path.isfile(filepath):
+                log.debug('Creating backup of %s at: %s', filename, filepath_bak)
+                shutil.copy2(filepath, filepath_bak)
+        except OSError as ex:
+            log.error('Unable to backup %s to %s: %s', filepath, filepath_bak, ex)
+        else:
+            log.info('Saving the %s at: %s', filename, filepath)
+            try:
+                with open(filepath_tmp, 'w', encoding='utf8') as _file:
+                    for account in self.__auth.values():
+                        _file.write(
+                            '%(username)s:%(password)s:%(authlevel_int)s\n'
+                            % account.data()
+                        )
+                    _file.flush()
+                    os.fsync(_file.fileno())
+                shutil.move(filepath_tmp, filepath)
+            except OSError as ex:
+                log.error('Unable to save %s: %s', filename, ex)
+                if os.path.isfile(filepath_bak):
+                    log.info('Restoring backup of %s from: %s', filename, filepath_bak)
+                    shutil.move(filepath_bak, filepath)
+
+        self.__load_auth_file()
+
+    def __load_auth_file(self):
+        save_and_reload = False
+        filename = 'auth'
+        auth_file = configmanager.get_config_dir(filename)
+        auth_file_bak = auth_file + '.bak'
+
+        # Check for auth file and create if necessary
+        if not os.path.isfile(auth_file):
+            create_localclient_account()
+            return self.__load_auth_file()
+
+        auth_file_modification_time = os.stat(auth_file).st_mtime
+        if self.__auth_modification_time is None:
+            self.__auth_modification_time = auth_file_modification_time
+        elif self.__auth_modification_time == auth_file_modification_time:
+            # File didn't change, no need for re-parsing's
+            return
+
+        for _filepath in (auth_file, auth_file_bak):
+            log.info('Opening %s for load: %s', filename, _filepath)
+            try:
+                with open(_filepath, encoding='utf8') as _file:
+                    file_data = _file.readlines()
+            except OSError as ex:
+                log.warning('Unable to load %s: %s', _filepath, ex)
+                file_data = []
+            else:
+                log.info('Successfully loaded %s: %s', filename, _filepath)
+                break
+
+        # Load the auth file into a dictionary: {username: Account(...)}
+        for line in file_data:
+            line = line.strip()
+            if line.startswith('#') or not line:
+                # This line is a comment or empty
+                continue
+            lsplit = line.split(':')
+            if len(lsplit) == 2:
+                username, password = lsplit
+                log.warning(
+                    'Your auth entry for %s contains no auth level, '
+                    'using AUTH_LEVEL_DEFAULT(%s)..',
+                    username,
+                    AUTH_LEVEL_DEFAULT,
+                )
+                if username == 'localclient':
+                    authlevel = AUTH_LEVEL_ADMIN
+                else:
+                    authlevel = AUTH_LEVEL_DEFAULT
+                # This is probably an old auth file
+                save_and_reload = True
+            elif len(lsplit) == 3:
+                username, password, authlevel = lsplit
+            else:
+                log.error('Your auth file is malformed: Incorrect number of fields!')
+                continue
+
+            username = username.strip()
+            password = password.strip()
+            try:
+                authlevel = int(authlevel)
+            except ValueError:
+                try:
+                    authlevel = AUTH_LEVELS_MAPPING[authlevel]
+                except KeyError:
+                    log.error(
+                        'Your auth file is malformed: %r is not a valid auth level',
+                        authlevel,
+                    )
+                continue
+
+            self.__auth[username] = Account(username, password, authlevel)
+
+        if 'localclient' not in self.__auth:
+            create_localclient_account(True)
+            return self.__load_auth_file()
+
+        if save_and_reload:
+            log.info('Re-writing auth file (upgrade)')
+            self.write_auth_file()
+        self.__auth_modification_time = auth_file_modification_time

deluge/core/daemon.py

@@ -0,0 +1,203 @@
+#
+# Copyright (C) 2007-2009 Andrew Resch <andrewresch@gmail.com>
+#
+# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
+# the additional special exception to link portions of this program with the OpenSSL library.
+# See LICENSE for more details.
+#
+
+"""The Deluge daemon"""
+import logging
+import os
+import socket
+
+from twisted.internet import reactor
+
+import deluge.component as component
+from deluge.common import get_version, is_ip, is_process_running, windows_check
+from deluge.configmanager import get_config_dir
+from deluge.core.core import Core
+from deluge.core.rpcserver import RPCServer, export
+from deluge.error import DaemonRunningError
+
+if windows_check():
+    from win32api import SetConsoleCtrlHandler
+    from win32con import CTRL_CLOSE_EVENT, CTRL_SHUTDOWN_EVENT
+
+log = logging.getLogger(__name__)
+
+
+def is_daemon_running(pid_file):
+    """
+    Check for another running instance of the daemon using the same pid file.
+
+    Args:
+        pid_file: The location of the file with pid, port values.
+
+    Returns:
+        bool: True is daemon is running, False otherwise.
+
+    """
+
+    try:
+        with open(pid_file) as _file:
+            pid, port = (int(x) for x in _file.readline().strip().split(';'))
+    except (OSError, ValueError):
+        return False
+
+    if is_process_running(pid):
+        # Ensure it's a deluged process by trying to open a socket to it's port.
+        _socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+        try:
+            _socket.connect(('127.0.0.1', port))
+        except OSError:
+            # Can't connect, so pid is not a deluged process.
+            return False
+        else:
+            # This is a deluged process!
+            _socket.close()
+            return True
+
+
+class Daemon:
+    """The Deluge Daemon class"""
+
+    def __init__(
+        self,
+        listen_interface=None,
+        outgoing_interface=None,
+        interface=None,
+        port=None,
+        standalone=False,
+        read_only_config_keys=None,
+    ):
+        """
+        Args:
+            listen_interface (str, optional): The IP address to listen to
+                BitTorrent connections on.
+            outgoing_interface (str, optional): The network interface name or
+                IP address to open outgoing BitTorrent connections on.
+            interface (str, optional): The IP address the daemon will
+                listen for UI connections on.
+            port (int, optional): The port the daemon will listen for UI
+                connections on.
+            standalone (bool, optional): If True the client is in Standalone
+                mode otherwise, if False, start the daemon as separate process.
+            read_only_config_keys (list of str, optional): A list of config
+                keys that will not be altered by core.set_config() RPC method.
+        """
+        self.standalone = standalone
+        self.pid_file = get_config_dir('deluged.pid')
+        log.info('Deluge daemon %s', get_version())
+        if is_daemon_running(self.pid_file):
+            raise DaemonRunningError(
+                'Deluge daemon already running with this config directory!'
+            )
+
+        # Twisted catches signals to terminate, so just have it call the shutdown method.
+        reactor.addSystemEventTrigger('before', 'shutdown', self._shutdown)
+
+        # Catch some Windows specific signals
+        if windows_check():
+
+            def win_handler(ctrl_type):
+                """Handle the Windows shutdown or close events."""
+                log.debug('windows handler ctrl_type: %s', ctrl_type)
+                if ctrl_type == CTRL_CLOSE_EVENT or ctrl_type == CTRL_SHUTDOWN_EVENT:
+                    self._shutdown()
+                    return 1
+
+            SetConsoleCtrlHandler(win_handler)
+
+        # Start the core as a thread and join it until it's done
+        self.core = Core(
+            listen_interface=listen_interface,
+            outgoing_interface=outgoing_interface,
+            read_only_config_keys=read_only_config_keys,
+        )
+
+        if port is None:
+            port = self.core.config['daemon_port']
+        self.port = port
+
+        if interface and not is_ip(interface):
+            log.error('Invalid UI interface (must be IP Address): %s', interface)
+            interface = None
+
+        self.rpcserver = RPCServer(
+            port=port,
+            allow_remote=self.core.config['allow_remote'],
+            listen=not standalone,
+            interface=interface,
+        )
+
+        log.debug(
+            'Listening to UI on: %s:%s and bittorrent on: %s Making connections out on: %s',
+            interface,
+            port,
+            listen_interface,
+            outgoing_interface,
+        )
+
+    def start(self):
+        # Register the daemon and the core RPCs
+        self.rpcserver.register_object(self.core)
+        self.rpcserver.register_object(self)
+
+        # Make sure we start the PreferencesManager first
+        component.start('PreferencesManager')
+
+        if not self.standalone:
+            log.info('Deluge daemon starting...')
+            # Create pid file to track if deluged is running, also includes the port number.
+            pid = os.getpid()
+            log.debug('Storing pid %s & port %s in: %s', pid, self.port, self.pid_file)
+            with open(self.pid_file, 'w') as _file:
+                _file.write(f'{pid};{self.port}\n')
+
+            component.start()
+
+            try:
+                reactor.run()
+            finally:
+                log.debug('Remove pid file: %s', self.pid_file)
+                os.remove(self.pid_file)
+                log.info('Deluge daemon shutdown successfully')
+
+    @export()
+    def shutdown(self, *args, **kwargs):
+        log.debug('Deluge daemon shutdown requested...')
+        reactor.callLater(0, reactor.stop)
+
+    def _shutdown(self, *args, **kwargs):
+        log.info('Deluge daemon shutting down, waiting for components to shutdown...')
+        if not self.standalone:
+            return component.shutdown()
+
+    @export()
+    def get_method_list(self):
+        """Returns a list of the exported methods."""
+        return self.rpcserver.get_method_list()
+
+    @export()
+    def get_version(self):
+        """Returns the daemon version"""
+        return get_version()
+
+    @export(1)
+    def authorized_call(self, rpc):
+        """Determines if session auth_level is authorized to call RPC.
+
+        Args:
+            rpc (str): A RPC, e.g. core.get_torrents_status
+
+        Returns:
+            bool: True if authorized to call RPC, otherwise False.
+        """
+        if rpc not in self.get_method_list():
+            return False
+
+        return (
+            self.rpcserver.get_session_auth_level()
+            >= self.rpcserver.get_rpc_auth_level(rpc)
+        )

deluge/core/daemon_entry.py

@@ -0,0 +1,140 @@
+#
+# Copyright (C) 2007 Andrew Resch <andrewresch@gmail.com>
+# Copyright (C) 2010 Pedro Algarvio <pedro@algarvio.me>
+#
+# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
+# the additional special exception to link portions of this program with the OpenSSL library.
+# See LICENSE for more details.
+#
+import os
+import sys
+from logging import DEBUG, FileHandler, getLogger
+
+from twisted.internet.error import CannotListenError
+
+from deluge.argparserbase import ArgParserBase
+from deluge.common import run_profiled
+from deluge.configmanager import get_config_dir
+from deluge.i18n import setup_mock_translation
+
+
+def add_daemon_options(parser):
+    group = parser.add_argument_group(_('Daemon Options'))
+    group.add_argument(
+        '-u',
+        '--ui-interface',
+        metavar='<ip-addr>',
+        action='store',
+        help=_('IP address to listen for UI connections'),
+    )
+    group.add_argument(
+        '-p',
+        '--port',
+        metavar='<port>',
+        action='store',
+        type=int,
+        help=_('Port to listen for UI connections on'),
+    )
+    group.add_argument(
+        '-i',
+        '--interface',
+        metavar='<ip-addr>',
+        dest='listen_interface',
+        action='store',
+        help=_('IP address to listen for BitTorrent connections'),
+    )
+    group.add_argument(
+        '-o',
+        '--outgoing-interface',
+        metavar='<interface>',
+        dest='outgoing_interface',
+        action='store',
+        help=_(
+            'The network interface name or IP address for outgoing BitTorrent connections.'
+        ),
+    )
+    group.add_argument(
+        '--read-only-config-keys',
+        metavar='<comma-separated-keys>',
+        action='store',
+        help=_('Config keys to be unmodified by `set_config` RPC'),
+        type=str,
+        default='',
+    )
+    parser.add_process_arg_group()
+
+
+def start_daemon(skip_start=False):
+    """
+    Entry point for daemon script
+
+    Args:
+        skip_start (bool): If starting daemon should be skipped.
+
+    Returns:
+        deluge.core.daemon.Daemon: A new daemon object
+
+    """
+    setup_mock_translation()
+
+    # Setup the argument parser
+    parser = ArgParserBase()
+    add_daemon_options(parser)
+
+    options = parser.parse_args()
+
+    # Check for any daemons running with this same config
+    from deluge.core.daemon import is_daemon_running
+
+    pid_file = get_config_dir('deluged.pid')
+    if is_daemon_running(pid_file):
+        print(
+            'Cannot run multiple daemons with same config directory.\n'
+            'If you believe this is an error, force starting by deleting: %s' % pid_file
+        )
+        sys.exit(1)
+
+    log = getLogger(__name__)
+
+    # If no logfile specified add logging to default location (as well as stdout)
+    if not options.logfile:
+        options.logfile = get_config_dir('deluged.log')
+        file_handler = FileHandler(options.logfile)
+        log.addHandler(file_handler)
+
+    def run_daemon(options):
+        try:
+            from deluge.core.daemon import Daemon
+
+            daemon = Daemon(
+                listen_interface=options.listen_interface,
+                outgoing_interface=options.outgoing_interface,
+                interface=options.ui_interface,
+                port=options.port,
+                read_only_config_keys=options.read_only_config_keys.split(','),
+            )
+            if skip_start:
+                return daemon
+            else:
+                daemon.start()
+        except CannotListenError as ex:
+            log.error(
+                'Cannot start deluged, listen port in use.\n'
+                ' Check for other running daemons or services using this port: %s:%s',
+                ex.interface,
+                ex.port,
+            )
+            sys.exit(1)
+        except Exception as ex:
+            log.error('Unable to start deluged: %s', ex)
+            if log.isEnabledFor(DEBUG):
+                log.exception(ex)
+            sys.exit(1)
+        finally:
+            log.info('Exiting...')
+            if options.pidfile:
+                os.remove(options.pidfile)
+
+    return run_profiled(
+        run_daemon, options, output_file=options.profile, do_profile=options.profile
+    )

deluge/core/eventmanager.py

@@ -0,0 +1,66 @@
+#
+# Copyright (C) 2009 Andrew Resch <andrewresch@gmail.com>
+#
+# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
+# the additional special exception to link portions of this program with the OpenSSL library.
+# See LICENSE for more details.
+#
+
+import logging
+
+import deluge.component as component
+
+log = logging.getLogger(__name__)
+
+
+class EventManager(component.Component):
+    def __init__(self):
+        component.Component.__init__(self, 'EventManager')
+        self.handlers = {}
+
+    def emit(self, event):
+        """
+        Emits the event to interested clients.
+
+        :param event: DelugeEvent
+        """
+        # Emit the event to the interested clients
+        component.get('RPCServer').emit_event(event)
+        # Call any handlers for the event
+        if event.name in self.handlers:
+            for handler in self.handlers[event.name]:
+                # log.debug('Running handler %s for event %s with args: %s', event.name, handler, event.args)
+                try:
+                    handler(*event.args)
+                except Exception as ex:
+                    log.error(
+                        'Event handler %s failed in %s with exception %s',
+                        event.name,
+                        handler,
+                        ex,
+                    )
+
+    def register_event_handler(self, event, handler):
+        """
+        Registers a function to be called when a `:param:event` is emitted.
+
+        :param event: str, the event name
+        :param handler: function, to be called when `:param:event` is emitted
+
+        """
+        if event not in self.handlers:
+            self.handlers[event] = []
+
+        if handler not in self.handlers[event]:
+            self.handlers[event].append(handler)
+
+    def deregister_event_handler(self, event, handler):
+        """
+        Deregisters an event handler function.
+
+        :param event: str, the event name
+        :param handler: function, currently registered to handle `:param:event`
+
+        """
+        if event in self.handlers and handler in self.handlers[event]:
+            self.handlers[event].remove(handler)

deluge/core/filtermanager.py

@@ -0,0 +1,274 @@
+#
+# Copyright (C) 2008 Martijn Voncken <mvoncken@gmail.com>
+#
+# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
+# the additional special exception to link portions of this program with the OpenSSL library.
+# See LICENSE for more details.
+#
+
+import logging
+
+import deluge.component as component
+from deluge.common import TORRENT_STATE
+
+log = logging.getLogger(__name__)
+
+STATE_SORT = ['All', 'Active'] + TORRENT_STATE
+
+
+# Special purpose filters:
+def filter_keywords(torrent_ids, values):
+    # Cleanup
+    keywords = ','.join([v.lower() for v in values])
+    keywords = keywords.split(',')
+
+    for keyword in keywords:
+        torrent_ids = filter_one_keyword(torrent_ids, keyword)
+    return torrent_ids
+
+
+def filter_one_keyword(torrent_ids, keyword):
+    """
+    search torrent on keyword.
+    searches title,state,tracker-status,tracker,files
+    """
+    all_torrents = component.get('TorrentManager').torrents
+
+    for torrent_id in torrent_ids:
+        torrent = all_torrents[torrent_id]
+        if keyword in torrent.filename.lower():
+            yield torrent_id
+        elif keyword in torrent.state.lower():
+            yield torrent_id
+        elif torrent.trackers and keyword in torrent.trackers[0]['url']:
+            yield torrent_id
+        elif keyword in torrent_id:
+            yield torrent_id
+        # Want to find broken torrents (search on "error", or "unregistered")
+        elif keyword in torrent.tracker_status.lower():
+            yield torrent_id
+        else:
+            for t_file in torrent.get_files():
+                if keyword in t_file['path'].lower():
+                    yield torrent_id
+                    break
+
+
+def filter_by_name(torrent_ids, search_string):
+    all_torrents = component.get('TorrentManager').torrents
+    try:
+        search_string, match_case = search_string[0].split('::match')
+    except ValueError:
+        search_string = search_string[0]
+        match_case = False
+
+    if match_case is False:
+        search_string = search_string.lower()
+
+    for torrent_id in torrent_ids:
+        torrent_name = all_torrents[torrent_id].get_name()
+        if match_case is False:
+            torrent_name = all_torrents[torrent_id].get_name().lower()
+        else:
+            torrent_name = all_torrents[torrent_id].get_name()
+
+        if search_string in torrent_name:
+            yield torrent_id
+
+
+def tracker_error_filter(torrent_ids, values):
+    filtered_torrent_ids = []
+    tm = component.get('TorrentManager')
+
+    # If this is a tracker_host, then we need to filter on it
+    if values[0] != 'Error':
+        for torrent_id in torrent_ids:
+            if values[0] == tm[torrent_id].get_status(['tracker_host'])['tracker_host']:
+                filtered_torrent_ids.append(torrent_id)
+        return filtered_torrent_ids
+
+    # Check torrent's tracker_status for 'Error:' and return those torrent_ids
+    for torrent_id in torrent_ids:
+        if 'Error:' in tm[torrent_id].get_status(['tracker_status'])['tracker_status']:
+            filtered_torrent_ids.append(torrent_id)
+    return filtered_torrent_ids
+
+
+class FilterManager(component.Component):
+    """FilterManager"""
+
+    def __init__(self, core):
+        component.Component.__init__(self, 'FilterManager')
+        log.debug('FilterManager init..')
+        self.core = core
+        self.torrents = core.torrentmanager
+        self.registered_filters = {}
+        self.register_filter('keyword', filter_keywords)
+        self.register_filter('name', filter_by_name)
+        self.tree_fields = {}
+
+        self.register_tree_field('state', self._init_state_tree)
+
+        def _init_tracker_tree():
+            return {'Error': 0}
+
+        self.register_tree_field('tracker_host', _init_tracker_tree)
+
+        self.register_filter('tracker_host', tracker_error_filter)
+
+        def _init_users_tree():
+            return {'': 0}
+
+        self.register_tree_field('owner', _init_users_tree)
+
+    def filter_torrent_ids(self, filter_dict):
+        """
+        returns a list of torrent_id's matching filter_dict.
+        core filter method
+        """
+        if not filter_dict:
+            return self.torrents.get_torrent_list()
+
+        # Sanitize input: filter-value must be a list of strings
+        for key, value in filter_dict.items():
+            if isinstance(value, str):
+                filter_dict[key] = [value]
+
+        # Optimized filter for id
+        if 'id' in filter_dict:
+            torrent_ids = list(filter_dict['id'])
+            del filter_dict['id']
+        else:
+            torrent_ids = self.torrents.get_torrent_list()
+
+        # Return if there's nothing more to filter
+        if not filter_dict:
+            return torrent_ids
+
+        # Special purpose, state=Active.
+        if 'state' in filter_dict:
+            # We need to make sure this is a list for the logic below
+            filter_dict['state'] = list(filter_dict['state'])
+
+        if 'state' in filter_dict and 'Active' in filter_dict['state']:
+            filter_dict['state'].remove('Active')
+            if not filter_dict['state']:
+                del filter_dict['state']
+            torrent_ids = self.filter_state_active(torrent_ids)
+
+        if not filter_dict:
+            return torrent_ids
+
+        # Registered filters
+        for field, values in list(filter_dict.items()):
+            if field in self.registered_filters:
+                # Filters out doubles
+                torrent_ids = list(
+                    set(self.registered_filters[field](torrent_ids, values))
+                )
+                del filter_dict[field]
+
+        if not filter_dict:
+            return torrent_ids
+
+        torrent_keys, plugin_keys = self.torrents.separate_keys(
+            list(filter_dict), torrent_ids
+        )
+        # Leftover filter arguments, default filter on status fields.
+        for torrent_id in list(torrent_ids):
+            status = self.core.create_torrent_status(
+                torrent_id, torrent_keys, plugin_keys
+            )
+            for field, values in filter_dict.items():
+                if field in status and status[field] in values:
+                    continue
+                elif torrent_id in torrent_ids:
+                    torrent_ids.remove(torrent_id)
+        return torrent_ids
+
+    def get_filter_tree(self, show_zero_hits=True, hide_cat=None):
+        """
+        returns {field: [(value,count)] }
+        for use in sidebar.
+        """
+        torrent_ids = self.torrents.get_torrent_list()
+        tree_keys = list(self.tree_fields)
+        if hide_cat:
+            for cat in hide_cat:
+                tree_keys.remove(cat)
+
+        torrent_keys, plugin_keys = self.torrents.separate_keys(tree_keys, torrent_ids)
+        items = {field: self.tree_fields[field]() for field in tree_keys}
+
+        for torrent_id in list(torrent_ids):
+            status = self.core.create_torrent_status(
+                torrent_id, torrent_keys, plugin_keys
+            )  # status={key:value}
+            for field in tree_keys:
+                value = status[field]
+                items[field][value] = items[field].get(value, 0) + 1
+
+        if 'tracker_host' in items:
+            items['tracker_host']['All'] = len(torrent_ids)
+            items['tracker_host']['Error'] = len(
+                tracker_error_filter(torrent_ids, ('Error',))
+            )
+
+        if not show_zero_hits:
+            for cat in ['state', 'owner', 'tracker_host']:
+                if cat in tree_keys:
+                    self._hide_state_items(items[cat])
+
+        # Return a dict of tuples:
+        sorted_items = {field: sorted(items[field].items()) for field in tree_keys}
+
+        if 'state' in tree_keys:
+            sorted_items['state'].sort(key=self._sort_state_item)
+
+        return sorted_items
+
+    def _init_state_tree(self):
+        init_state = {}
+        init_state['All'] = len(self.torrents.get_torrent_list())
+        for state in TORRENT_STATE:
+            init_state[state] = 0
+        init_state['Active'] = len(
+            self.filter_state_active(self.torrents.get_torrent_list())
+        )
+        return init_state
+
+    def register_filter(self, filter_id, filter_func, filter_value=None):
+        self.registered_filters[filter_id] = filter_func
+
+    def deregister_filter(self, filter_id):
+        del self.registered_filters[filter_id]
+
+    def register_tree_field(self, field, init_func=lambda: {}):
+        self.tree_fields[field] = init_func
+
+    def deregister_tree_field(self, field):
+        if field in self.tree_fields:
+            del self.tree_fields[field]
+
+    def filter_state_active(self, torrent_ids):
+        for torrent_id in list(torrent_ids):
+            status = self.torrents[torrent_id].get_status(
+                ['download_payload_rate', 'upload_payload_rate']
+            )
+            if status['download_payload_rate'] or status['upload_payload_rate']:
+                pass
+            else:
+                torrent_ids.remove(torrent_id)
+        return torrent_ids
+
+    def _hide_state_items(self, state_items):
+        """For hide(show)-zero hits"""
+        for value, count in list(state_items.items()):
+            if value != 'All' and count == 0:
+                del state_items[value]
+
+    def _sort_state_item(self, item):
+        try:
+            return STATE_SORT.index(item[0])
+        except ValueError:
+            return 99

deluge/core/pluginmanager.py

@@ -0,0 +1,105 @@
+#
+# Copyright (C) 2007 Andrew Resch <andrewresch@gmail.com>
+#
+# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
+# the additional special exception to link portions of this program with the OpenSSL library.
+# See LICENSE for more details.
+#
+
+
+"""PluginManager for Core"""
+import logging
+
+from twisted.internet import defer
+
+import deluge.component as component
+import deluge.pluginmanagerbase
+from deluge.event import PluginDisabledEvent, PluginEnabledEvent
+
+log = logging.getLogger(__name__)
+
+
+class PluginManager(deluge.pluginmanagerbase.PluginManagerBase, component.Component):
+    """PluginManager handles the loading of plugins and provides plugins with
+    functions to access parts of the core."""
+
+    def __init__(self, core):
+        component.Component.__init__(self, 'CorePluginManager')
+
+        self.status_fields = {}
+
+        # Call the PluginManagerBase constructor
+        deluge.pluginmanagerbase.PluginManagerBase.__init__(
+            self, 'core.conf', 'deluge.plugin.core'
+        )
+
+    def start(self):
+        # Enable plugins that are enabled in the config
+        self.enable_plugins()
+
+    def stop(self):
+        # Disable all enabled plugins
+        self.disable_plugins()
+
+    def shutdown(self):
+        self.stop()
+
+    def update_plugins(self):
+        for plugin in self.plugins:
+            if hasattr(self.plugins[plugin], 'update'):
+                try:
+                    self.plugins[plugin].update()
+                except Exception as ex:
+                    log.exception(ex)
+
+    def enable_plugin(self, name):
+        d = defer.succeed(True)
+        if name not in self.plugins:
+            d = deluge.pluginmanagerbase.PluginManagerBase.enable_plugin(self, name)
+
+            def on_enable_plugin(result):
+                if result is True and name in self.plugins:
+                    component.get('EventManager').emit(PluginEnabledEvent(name))
+                return result
+
+            d.addBoth(on_enable_plugin)
+        return d
+
+    def disable_plugin(self, name):
+        d = defer.succeed(True)
+        if name in self.plugins:
+            d = deluge.pluginmanagerbase.PluginManagerBase.disable_plugin(self, name)
+
+            def on_disable_plugin(result):
+                if name not in self.plugins:
+                    component.get('EventManager').emit(PluginDisabledEvent(name))
+                return result
+
+            d.addBoth(on_disable_plugin)
+        return d
+
+    def get_status(self, torrent_id, fields):
+        """Return the value of status fields for the selected torrent_id."""
+        status = {}
+        if len(fields) == 0:
+            fields = list(self.status_fields)
+        for field in fields:
+            try:
+                status[field] = self.status_fields[field](torrent_id)
+            except KeyError:
+                pass
+        return status
+
+    def register_status_field(self, field, function):
+        """Register a new status field.  This can be used in the same way the
+        client requests other status information from core."""
+        log.debug('Registering status field %s with PluginManager', field)
+        self.status_fields[field] = function
+
+    def deregister_status_field(self, field):
+        """Deregisters a status field"""
+        log.debug('Deregistering status field %s with PluginManager', field)
+        try:
+            del self.status_fields[field]
+        except Exception:
+            log.warning('Unable to deregister status field %s', field)

deluge/core/preferencesmanager.py

@@ -0,0 +1,476 @@
+#
+# Copyright (C) 2008-2010 Andrew Resch <andrewresch@gmail.com>
+#
+# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
+# the additional special exception to link portions of this program with the OpenSSL library.
+# See LICENSE for more details.
+#
+
+
+import logging
+import os
+import platform
+import random
+import threading
+from urllib.parse import quote_plus
+from urllib.request import urlopen
+
+from twisted.internet.task import LoopingCall
+
+import deluge.common
+import deluge.component as component
+import deluge.configmanager
+from deluge._libtorrent import lt
+from deluge.event import ConfigValueChangedEvent
+
+GeoIP = None
+try:
+    from GeoIP import GeoIP
+except ImportError:
+    try:
+        from pygeoip import GeoIP
+    except ImportError:
+        pass
+
+log = logging.getLogger(__name__)
+
+DEFAULT_PREFS = {
+    'send_info': False,
+    'info_sent': 0.0,
+    'daemon_port': 58846,
+    'allow_remote': False,
+    'pre_allocate_storage': False,
+    'download_location': deluge.common.get_default_download_dir(),
+    'listen_ports': [6881, 6891],
+    'listen_interface': '',
+    'outgoing_interface': '',
+    'random_port': True,
+    'listen_random_port': None,
+    'listen_use_sys_port': False,
+    'listen_reuse_port': True,
+    'outgoing_ports': [0, 0],
+    'random_outgoing_ports': True,
+    'copy_torrent_file': False,
+    'del_copy_torrent_file': False,
+    'torrentfiles_location': deluge.common.get_default_download_dir(),
+    'plugins_location': os.path.join(deluge.configmanager.get_config_dir(), 'plugins'),
+    'prioritize_first_last_pieces': False,
+    'sequential_download': False,
+    'dht': True,
+    'upnp': True,
+    'natpmp': True,
+    'utpex': True,
+    'lsd': True,
+    'enc_in_policy': 1,
+    'enc_out_policy': 1,
+    'enc_level': 2,
+    'max_connections_global': 200,
+    'max_upload_speed': -1.0,
+    'max_download_speed': -1.0,
+    'max_upload_slots_global': 4,
+    'max_half_open_connections': (
+        lambda: deluge.common.windows_check()
+        and (lambda: deluge.common.vista_check() and 4 or 8)()
+        or 50
+    )(),
+    'max_connections_per_second': 20,
+    'ignore_limits_on_local_network': True,
+    'max_connections_per_torrent': -1,
+    'max_upload_slots_per_torrent': -1,
+    'max_upload_speed_per_torrent': -1,
+    'max_download_speed_per_torrent': -1,
+    'enabled_plugins': [],
+    'add_paused': False,
+    'max_active_seeding': 5,
+    'max_active_downloading': 3,
+    'max_active_limit': 8,
+    'dont_count_slow_torrents': False,
+    'queue_new_to_top': False,
+    'stop_seed_at_ratio': False,
+    'remove_seed_at_ratio': False,
+    'stop_seed_ratio': 2.00,
+    'share_ratio_limit': 2.00,
+    'seed_time_ratio_limit': 7.00,
+    'seed_time_limit': 180,
+    'auto_managed': True,
+    'move_completed': False,
+    'move_completed_path': deluge.common.get_default_download_dir(),
+    'move_completed_paths_list': [],
+    'download_location_paths_list': [],
+    'path_chooser_show_chooser_button_on_localhost': True,
+    'path_chooser_auto_complete_enabled': True,
+    'path_chooser_accelerator_string': 'Tab',
+    'path_chooser_max_popup_rows': 20,
+    'path_chooser_show_hidden_files': False,
+    'new_release_check': True,
+    'proxy': {
+        'type': 0,
+        'hostname': '',
+        'username': '',
+        'password': '',
+        'port': 8080,
+        'proxy_hostnames': True,
+        'proxy_peer_connections': True,
+        'proxy_tracker_connections': True,
+        'force_proxy': False,
+        'anonymous_mode': False,
+    },
+    'peer_tos': '0x00',
+    'rate_limit_ip_overhead': True,
+    'geoip_db_location': '/usr/share/GeoIP/GeoIP.dat',
+    'cache_size': 512,
+    'cache_expiry': 60,
+    'auto_manage_prefer_seeds': False,
+    'shared': False,
+    'super_seeding': False,
+}
+
+
+class PreferencesManager(component.Component):
+    def __init__(self):
+        component.Component.__init__(self, 'PreferencesManager')
+        self.config = deluge.configmanager.ConfigManager('core.conf', DEFAULT_PREFS)
+        if 'proxies' in self.config:
+            log.warning(
+                'Updating config file for proxy, using "peer" values to fill new "proxy" setting'
+            )
+            self.config['proxy'].update(self.config['proxies']['peer'])
+            log.warning('New proxy config is: %s', self.config['proxy'])
+            del self.config['proxies']
+        if 'i2p_proxy' in self.config and self.config['i2p_proxy']['hostname']:
+            self.config['proxy'].update(self.config['i2p_proxy'])
+            self.config['proxy']['type'] = 6
+            del self.config['i2p_proxy']
+        if 'anonymous_mode' in self.config:
+            self.config['proxy']['anonymous_mode'] = self.config['anonymous_mode']
+            del self.config['anonymous_mode']
+        if 'proxy' in self.config:
+            for key in DEFAULT_PREFS['proxy']:
+                if key not in self.config['proxy']:
+                    self.config['proxy'][key] = DEFAULT_PREFS['proxy'][key]
+
+        self.core = component.get('Core')
+        self.new_release_timer = None
+
+    def start(self):
+        # Set the initial preferences on start-up
+        for key in DEFAULT_PREFS:
+            self.do_config_set_func(key, self.config[key])
+
+        self.config.register_change_callback(self._on_config_value_change)
+
+    def stop(self):
+        if self.new_release_timer and self.new_release_timer.running:
+            self.new_release_timer.stop()
+
+    # Config set functions
+    def do_config_set_func(self, key, value):
+        on_set_func = getattr(self, '_on_set_' + key, None)
+        if on_set_func:
+            if log.isEnabledFor(logging.DEBUG):
+                log.debug('Config key: %s set to %s..', key, value)
+            on_set_func(key, value)
+
+    def _on_config_value_change(self, key, value):
+        if self.get_state() == 'Started':
+            self.do_config_set_func(key, value)
+            component.get('EventManager').emit(ConfigValueChangedEvent(key, value))
+
+    def _on_set_torrentfiles_location(self, key, value):
+        if self.config['copy_torrent_file']:
+            try:
+                os.makedirs(value)
+            except OSError as ex:
+                log.debug('Unable to make directory: %s', ex)
+
+    def _on_set_listen_ports(self, key, value):
+        self.__set_listen_on()
+
+    def _on_set_listen_interface(self, key, value):
+        self.__set_listen_on()
+
+    def _on_set_outgoing_interface(self, key, value):
+        """Set interface name or IP address for outgoing BitTorrent connections."""
+        value = value.strip() if value else ''
+        self.core.apply_session_settings({'outgoing_interfaces': value})
+
+    def _on_set_random_port(self, key, value):
+        self.__set_listen_on()
+
+    def __set_listen_on(self):
+        """Set the ports and interface address to listen for incoming connections on."""
+        if self.config['random_port']:
+            if not self.config['listen_random_port']:
+                self.config['listen_random_port'] = random.randrange(49152, 65525)
+            listen_ports = [
+                self.config['listen_random_port']
+            ] * 2  # use single port range
+        else:
+            self.config['listen_random_port'] = None
+            listen_ports = self.config['listen_ports']
+
+        if self.config['listen_interface']:
+            interface = self.config['listen_interface'].strip()
+        else:
+            interface = '0.0.0.0'
+
+        log.debug(
+            'Listen Interface: %s, Ports: %s with use_sys_port: %s',
+            interface,
+            listen_ports,
+            self.config['listen_use_sys_port'],
+        )
+        interfaces = [
+            f'{interface}:{port}'
+            for port in range(listen_ports[0], listen_ports[1] + 1)
+        ]
+        self.core.apply_session_settings(
+            {
+                'listen_system_port_fallback': self.config['listen_use_sys_port'],
+                'listen_interfaces': ','.join(interfaces),
+            }
+        )
+
+    def _on_set_outgoing_ports(self, key, value):
+        self.__set_outgoing_ports()
+
+    def _on_set_random_outgoing_ports(self, key, value):
+        self.__set_outgoing_ports()
+
+    def __set_outgoing_ports(self):
+        port = (
+            0
+            if self.config['random_outgoing_ports']
+            else self.config['outgoing_ports'][0]
+        )
+        if port:
+            num_ports = (
+                self.config['outgoing_ports'][1] - self.config['outgoing_ports'][0]
+            )
+            num_ports = num_ports if num_ports > 1 else 5
+        else:
+            num_ports = 0
+        log.debug('Outgoing port set to %s with range: %s', port, num_ports)
+        self.core.apply_session_settings(
+            {'outgoing_port': port, 'num_outgoing_ports': num_ports}
+        )
+
+    def _on_set_peer_tos(self, key, value):
+        try:
+            self.core.apply_session_setting('peer_tos', int(value, 16))
+        except ValueError as ex:
+            log.error('Invalid tos byte: %s', ex)
+
+    def _on_set_dht(self, key, value):
+        lt_bootstraps = self.core.session.get_settings()['dht_bootstrap_nodes']
+        # Update list of lt bootstraps, using set to remove duplicates.
+        dht_bootstraps = set(
+            lt_bootstraps.split(',')
+            + [
+                'router.bittorrent.com:6881',
+                'router.utorrent.com:6881',
+                'router.bitcomet.com:6881',
+                'dht.transmissionbt.com:6881',
+                'dht.aelitis.com:6881',
+            ]
+        )
+        self.core.apply_session_settings(
+            {'dht_bootstrap_nodes': ','.join(dht_bootstraps), 'enable_dht': value}
+        )
+
+    def _on_set_upnp(self, key, value):
+        self.core.apply_session_setting('enable_upnp', value)
+
+    def _on_set_natpmp(self, key, value):
+        self.core.apply_session_setting('enable_natpmp', value)
+
+    def _on_set_lsd(self, key, value):
+        self.core.apply_session_setting('enable_lsd', value)
+
+    def _on_set_utpex(self, key, value):
+        if value:
+            self.core.session.add_extension('ut_pex')
+
+    def _on_set_enc_in_policy(self, key, value):
+        self._on_set_encryption(key, value)
+
+    def _on_set_enc_out_policy(self, key, value):
+        self._on_set_encryption(key, value)
+
+    def _on_set_enc_level(self, key, value):
+        self._on_set_encryption(key, value)
+
+    def _on_set_encryption(self, key, value):
+        # Convert Deluge enc_level values to libtorrent enc_level values.
+        pe_enc_level = {
+            0: lt.enc_level.plaintext,
+            1: lt.enc_level.rc4,
+            2: lt.enc_level.both,
+        }
+        self.core.apply_session_settings(
+            {
+                'out_enc_policy': lt.enc_policy(self.config['enc_out_policy']),
+                'in_enc_policy': lt.enc_policy(self.config['enc_in_policy']),
+                'allowed_enc_level': lt.enc_level(
+                    pe_enc_level[self.config['enc_level']]
+                ),
+                'prefer_rc4': True,
+            }
+        )
+
+    def _on_set_max_connections_global(self, key, value):
+        self.core.apply_session_setting('connections_limit', value)
+
+    def _on_set_max_upload_speed(self, key, value):
+        # We need to convert Kb/s to B/s
+        value = -1 if value < 0 else int(value * 1024)
+        self.core.apply_session_setting('upload_rate_limit', value)
+
+    def _on_set_max_download_speed(self, key, value):
+        # We need to convert Kb/s to B/s
+        value = -1 if value < 0 else int(value * 1024)
+        self.core.apply_session_setting('download_rate_limit', value)
+
+    def _on_set_max_upload_slots_global(self, key, value):
+        self.core.apply_session_setting('unchoke_slots_limit', value)
+
+    def _on_set_max_half_open_connections(self, key, value):
+        self.core.apply_session_setting('half_open_limit', value)
+
+    def _on_set_max_connections_per_second(self, key, value):
+        self.core.apply_session_setting('connection_speed', value)
+
+    def _on_set_ignore_limits_on_local_network(self, key, value):
+        self.core.apply_session_setting('ignore_limits_on_local_network', value)
+
+    def _on_set_share_ratio_limit(self, key, value):
+        # This value is a float percentage in deluge, but libtorrent needs int percentage.
+        self.core.apply_session_setting('share_ratio_limit', int(value * 100))
+
+    def _on_set_seed_time_ratio_limit(self, key, value):
+        # This value is a float percentage in deluge, but libtorrent needs int percentage.
+        self.core.apply_session_setting('seed_time_ratio_limit', int(value * 100))
+
+    def _on_set_seed_time_limit(self, key, value):
+        # This value is stored in minutes in deluge, but libtorrent wants seconds
+        self.core.apply_session_setting('seed_time_limit', int(value * 60))
+
+    def _on_set_max_active_downloading(self, key, value):
+        self.core.apply_session_setting('active_downloads', value)
+
+    def _on_set_max_active_seeding(self, key, value):
+        self.core.apply_session_setting('active_seeds', value)
+
+    def _on_set_max_active_limit(self, key, value):
+        self.core.apply_session_setting('active_limit', value)
+
+    def _on_set_dont_count_slow_torrents(self, key, value):
+        self.core.apply_session_setting('dont_count_slow_torrents', value)
+
+    def _on_set_send_info(self, key, value):
+        """sends anonymous stats home"""
+        log.debug('Sending anonymous stats..')
+
+        class SendInfoThread(threading.Thread):
+            def __init__(self, config):
+                self.config = config
+                threading.Thread.__init__(self)
+
+            def run(self):
+                import time
+
+                now = time.time()
+                # check if we've done this within the last week or never
+                if (now - self.config['info_sent']) >= (60 * 60 * 24 * 7):
+                    try:
+                        url = (
+                            'http://deluge-torrent.org/stats_get.php?processor='
+                            + platform.machine()
+                            + '&python='
+                            + platform.python_version()
+                            + '&deluge='
+                            + deluge.common.get_version()
+                            + '&os='
+                            + platform.system()
+                            + '&plugins='
+                            + quote_plus(':'.join(self.config['enabled_plugins']))
+                        )
+                        urlopen(url)
+                    except OSError as ex:
+                        log.debug('Network error while trying to send info: %s', ex)
+                    else:
+                        self.config['info_sent'] = now
+
+        if value:
+            SendInfoThread(self.config).start()
+
+    def _on_set_new_release_check(self, key, value):
+        if value:
+            log.debug('Checking for new release..')
+            threading.Thread(target=self.core.get_new_release).start()
+            if self.new_release_timer and self.new_release_timer.running:
+                self.new_release_timer.stop()
+            # Set a timer to check for a new release every 3 days
+            self.new_release_timer = LoopingCall(
+                self._on_set_new_release_check, 'new_release_check', True
+            )
+            self.new_release_timer.start(72 * 60 * 60, False)
+        else:
+            if self.new_release_timer and self.new_release_timer.running:
+                self.new_release_timer.stop()
+
+    def _on_set_proxy(self, key, value):
+        # Initialise with type none and blank hostnames.
+        proxy_settings = {
+            'proxy_type': lt.proxy_type_t.none,
+            'i2p_hostname': '',
+            'proxy_hostname': '',
+            'proxy_hostnames': value['proxy_hostnames'],
+            'proxy_peer_connections': value['proxy_peer_connections'],
+            'proxy_tracker_connections': value['proxy_tracker_connections'],
+            'force_proxy': value['force_proxy'],
+            'anonymous_mode': value['anonymous_mode'],
+        }
+
+        if value['type'] == lt.proxy_type_t.i2p_proxy:
+            proxy_settings.update(
+                {
+                    'proxy_type': lt.proxy_type_t.i2p_proxy,
+                    'i2p_hostname': value['hostname'],
+                    'i2p_port': value['port'],
+                }
+            )
+        elif value['type'] != lt.proxy_type_t.none:
+            proxy_settings.update(
+                {
+                    'proxy_type': value['type'],
+                    'proxy_hostname': value['hostname'],
+                    'proxy_port': value['port'],
+                    'proxy_username': value['username'],
+                    'proxy_password': value['password'],
+                }
+            )
+
+        self.core.apply_session_settings(proxy_settings)
+
+    def _on_set_rate_limit_ip_overhead(self, key, value):
+        self.core.apply_session_setting('rate_limit_ip_overhead', value)
+
+    def _on_set_geoip_db_location(self, key, geoipdb_path):
+        # Load the GeoIP DB for country look-ups if available
+        if os.path.exists(geoipdb_path):
+            try:
+                self.core.geoip_instance = GeoIP(geoipdb_path, 0)
+            except Exception as ex:
+                log.warning('GeoIP Unavailable: %s', ex)
+        else:
+            log.warning('Unable to find GeoIP database file: %s', geoipdb_path)
+
+    def _on_set_cache_size(self, key, value):
+        self.core.apply_session_setting('cache_size', value)
+
+    def _on_set_cache_expiry(self, key, value):
+        self.core.apply_session_setting('cache_expiry', value)
+
+    def _on_auto_manage_prefer_seeds(self, key, value):
+        self.core.apply_session_setting('auto_manage_prefer_seeds', value)

deluge/core/rpcserver.py

@@ -0,0 +1,598 @@
+#
+# Copyright (C) 2008,2009 Andrew Resch <andrewresch@gmail.com>
+#
+# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
+# the additional special exception to link portions of this program with the OpenSSL library.
+# See LICENSE for more details.
+#
+
+"""RPCServer Module"""
+import logging
+import os
+import sys
+import traceback
+from collections import namedtuple
+from types import FunctionType
+from typing import Callable, TypeVar, overload
+
+from twisted.internet import defer, reactor
+from twisted.internet.protocol import Factory, connectionDone
+
+import deluge.component as component
+import deluge.configmanager
+from deluge.core.authmanager import (
+    AUTH_LEVEL_ADMIN,
+    AUTH_LEVEL_DEFAULT,
+    AUTH_LEVEL_NONE,
+)
+from deluge.crypto_utils import check_ssl_keys, get_context_factory
+from deluge.error import (
+    DelugeError,
+    IncompatibleClient,
+    NotAuthorizedError,
+    WrappedException,
+    _ClientSideRecreateError,
+)
+from deluge.event import ClientDisconnectedEvent
+from deluge.transfer import DelugeTransferProtocol
+
+RPC_RESPONSE = 1
+RPC_ERROR = 2
+RPC_EVENT = 3
+
+log = logging.getLogger(__name__)
+
+TCallable = TypeVar('TCallable', bound=Callable)
+
+
+@overload
+def export(func: TCallable) -> TCallable:
+    ...
+
+
+@overload
+def export(auth_level: int) -> Callable[[TCallable], TCallable]:
+    ...
+
+
+def export(auth_level=AUTH_LEVEL_DEFAULT):
+    """
+    Decorator function to register an object's method as an RPC.  The object
+    will need to be registered with an :class:`RPCServer` to be effective.
+
+    :param func: the function to export
+    :type func: function
+    :param auth_level: the auth level required to call this method
+    :type auth_level: int
+
+    """
+
+    def wrap(func, *args, **kwargs):
+        func._rpcserver_export = True
+        func._rpcserver_auth_level = auth_level
+
+        rpc_text = '**RPC exported method** (*Auth level: %s*)' % auth_level
+
+        # Append the RPC text while ensuring correct docstring formatting.
+        if func.__doc__:
+            if func.__doc__.endswith('    '):
+                indent = func.__doc__.split('\n')[-1]
+                func.__doc__ += f'\n{indent}'
+            else:
+                func.__doc__ += '\n\n'
+            func.__doc__ += rpc_text
+        else:
+            func.__doc__ = rpc_text
+
+        return func
+
+    if isinstance(auth_level, FunctionType):
+        func = auth_level
+        auth_level = AUTH_LEVEL_DEFAULT
+        return wrap(func)
+    else:
+        return wrap
+
+
+def format_request(call):
+    """
+    Format the RPCRequest message for debug printing
+
+    :param call: the request
+    :type call: a RPCRequest
+
+    :returns: a formatted string for printing
+    :rtype: str
+
+    """
+    try:
+        s = call[1] + '('
+        if call[2]:
+            s += ', '.join([str(x) for x in call[2]])
+        if call[3]:
+            if call[2]:
+                s += ', '
+            s += ', '.join([key + '=' + str(value) for key, value in call[3].items()])
+        s += ')'
+    except UnicodeEncodeError:
+        return 'UnicodeEncodeError, call: %s' % call
+    else:
+        return s
+
+
+class DelugeRPCProtocol(DelugeTransferProtocol):
+    def __init__(self):
+        super().__init__()
+        # namedtuple subclass with auth_level, username for the connected session.
+        self.AuthLevel = namedtuple('SessionAuthlevel', 'auth_level, username')
+
+    def message_received(self, request):
+        """
+        This method is called whenever a message is received from a client.  The
+        only message that a client sends to the server is a RPC Request message.
+        If the RPC Request message is valid, then the method is called in
+        :meth:`dispatch`.
+
+        :param request: the request from the client.
+        :type data: tuple
+
+        """
+        if not isinstance(request, tuple):
+            log.debug('Received invalid message: type is not tuple')
+            return
+
+        if len(request) < 1:
+            log.debug('Received invalid message: there are no items')
+            return
+
+        for call in request:
+            if len(call) != 4:
+                log.debug(
+                    'Received invalid rpc request: number of items ' 'in request is %s',
+                    len(call),
+                )
+                continue
+            # log.debug('RPCRequest: %s', format_request(call))
+            reactor.callLater(0, self.dispatch, *call)
+
+    def sendData(self, data):  # NOQA: N802
+        """
+        Sends the data to the client.
+
+        :param data: the object that is to be sent to the client.  This should
+            be one of the RPC message types.
+        :type data: object
+
+        """
+        try:
+            self.transfer_message(data)
+        except Exception as ex:
+            log.warning('Error occurred when sending message: %s.', ex)
+            log.exception(ex)
+            raise
+
+    def connectionMade(self):  # NOQA: N802
+        """
+        This method is called when a new client connects.
+        """
+        peer = self.transport.getPeer()
+        log.info('Deluge Client connection made from: %s:%s', peer.host, peer.port)
+        # Set the initial auth level of this session to AUTH_LEVEL_NONE
+        self.factory.authorized_sessions[self.transport.sessionno] = self.AuthLevel(
+            AUTH_LEVEL_NONE, ''
+        )
+
+    def connectionLost(self, reason=connectionDone):  # NOQA: N802
+        """
+        This method is called when the client is disconnected.
+
+        :param reason: the reason the client disconnected.
+        :type reason: str
+
+        """
+
+        # We need to remove this session from various dicts
+        del self.factory.authorized_sessions[self.transport.sessionno]
+        if self.transport.sessionno in self.factory.session_protocols:
+            del self.factory.session_protocols[self.transport.sessionno]
+        if self.transport.sessionno in self.factory.interested_events:
+            del self.factory.interested_events[self.transport.sessionno]
+
+        if self.factory.state == 'running':
+            component.get('EventManager').emit(
+                ClientDisconnectedEvent(self.factory.session_id)
+            )
+        log.info('Deluge client disconnected: %s', reason.value)
+
+    def valid_session(self):
+        return self.transport.sessionno in self.factory.authorized_sessions
+
+    def dispatch(self, request_id, method, args, kwargs):
+        """
+        This method is run when a RPC Request is made.  It will run the local method
+        and will send either a RPC Response or RPC Error back to the client.
+
+        :param request_id: the request_id from the client (sent in the RPC Request)
+        :type request_id: int
+        :param method: the local method to call. It must be registered with
+            the :class:`RPCServer`.
+        :type method: str
+        :param args: the arguments to pass to `method`
+        :type args: list
+        :param kwargs: the keyword-arguments to pass to `method`
+        :type kwargs: dict
+
+        """
+
+        def send_error():
+            """
+            Sends an error response with the contents of the exception that was raised.
+            """
+            exc_type, exc_value, dummy_exc_trace = sys.exc_info()
+            formated_tb = traceback.format_exc()
+            try:
+                self.sendData(
+                    (
+                        RPC_ERROR,
+                        request_id,
+                        exc_type.__name__,
+                        exc_value._args,
+                        exc_value._kwargs,
+                        formated_tb,
+                    )
+                )
+            except AttributeError:
+                # This is not a deluge exception (object has no attribute '_args), let's wrap it
+                log.warning(
+                    'An exception occurred while sending RPC_ERROR to '
+                    'client. Wrapping it and resending. Error to '
+                    'send(causing exception goes next):\n%s',
+                    formated_tb,
+                )
+                try:
+                    raise WrappedException(
+                        str(exc_value), exc_type.__name__, formated_tb
+                    )
+                except WrappedException:
+                    send_error()
+            except Exception as ex:
+                log.error(
+                    'An exception occurred while sending RPC_ERROR to client: %s', ex
+                )
+
+        if method == 'daemon.info':
+            # This is a special case and used in the initial connection process
+            self.sendData((RPC_RESPONSE, request_id, deluge.common.get_version()))
+            return
+        elif method == 'daemon.login':
+            # This is a special case and used in the initial connection process
+            # We need to authenticate the user here
+            log.debug('RPC dispatch daemon.login')
+            try:
+                client_version = kwargs.pop('client_version', None)
+                if client_version is None:
+                    raise IncompatibleClient(deluge.common.get_version())
+                ret = component.get('AuthManager').authorize(*args, **kwargs)
+                if ret:
+                    self.factory.authorized_sessions[
+                        self.transport.sessionno
+                    ] = self.AuthLevel(ret, args[0])
+                    self.factory.session_protocols[self.transport.sessionno] = self
+            except Exception as ex:
+                send_error()
+                if not isinstance(ex, _ClientSideRecreateError):
+                    log.exception(ex)
+            else:
+                self.sendData((RPC_RESPONSE, request_id, (ret)))
+                if not ret:
+                    self.transport.loseConnection()
+            return
+
+        # Anything below requires a valid session
+        if not self.valid_session():
+            return
+
+        if method == 'daemon.set_event_interest':
+            log.debug('RPC dispatch daemon.set_event_interest')
+            # This special case is to allow clients to set which events they are
+            # interested in receiving.
+            # We are expecting a sequence from the client.
+            try:
+                if self.transport.sessionno not in self.factory.interested_events:
+                    self.factory.interested_events[self.transport.sessionno] = []
+                self.factory.interested_events[self.transport.sessionno].extend(args[0])
+            except Exception:
+                send_error()
+            else:
+                self.sendData((RPC_RESPONSE, request_id, (True)))
+            return
+
+        if method not in self.factory.methods:
+            try:
+                # Raise exception to be sent back to client
+                raise AttributeError('RPC call on invalid function: %s' % method)
+            except AttributeError:
+                send_error()
+                return
+
+        log.debug('RPC dispatch %s', method)
+        try:
+            method_auth_requirement = self.factory.methods[method]._rpcserver_auth_level
+            auth_level = self.factory.authorized_sessions[
+                self.transport.sessionno
+            ].auth_level
+            if auth_level < method_auth_requirement:
+                # This session is not allowed to call this method
+                log.debug(
+                    'Session %s is attempting an unauthorized method call!',
+                    self.transport.sessionno,
+                )
+                raise NotAuthorizedError(auth_level, method_auth_requirement)
+            # Set the session_id in the factory so that methods can know
+            # which session is calling it.
+            self.factory.session_id = self.transport.sessionno
+            ret = self.factory.methods[method](*args, **kwargs)
+        except Exception as ex:
+            send_error()
+            # Don't bother printing out DelugeErrors, because they are just
+            # for the client
+            if not isinstance(ex, DelugeError):
+                log.exception('Exception calling RPC request: %s', ex)
+        else:
+            # Check if the return value is a deferred, since we'll need to
+            # wait for it to fire before sending the RPC_RESPONSE
+            if isinstance(ret, defer.Deferred):
+
+                def on_success(result):
+                    try:
+                        self.sendData((RPC_RESPONSE, request_id, result))
+                    except Exception:
+                        send_error()
+                    return result
+
+                def on_fail(failure):
+                    try:
+                        failure.raiseException()
+                    except Exception:
+                        send_error()
+                    return failure
+
+                ret.addCallbacks(on_success, on_fail)
+            else:
+                self.sendData((RPC_RESPONSE, request_id, ret))
+
+
+class RPCServer(component.Component):
+    """
+    This class is used to handle rpc requests from the client.  Objects are
+    registered with this class and their methods are exported using the export
+    decorator.
+
+    :param port: the port the RPCServer will listen on
+    :type port: int
+    :param interface: the interface to listen on, this may override the `allow_remote` setting
+    :type interface: str
+    :param allow_remote: set True if the server should allow remote connections
+    :type allow_remote: bool
+    :param listen: if False, will not start listening.. This is only useful in Classic Mode
+    :type listen: bool
+    """
+
+    def __init__(self, port=58846, interface='', allow_remote=False, listen=True):
+        component.Component.__init__(self, 'RPCServer')
+
+        self.factory = Factory()
+        self.factory.protocol = DelugeRPCProtocol
+        self.factory.session_id = -1
+        self.factory.state = 'running'
+
+        # Holds the registered methods
+        self.factory.methods = {}
+        # Holds the session_ids and auth levels
+        self.factory.authorized_sessions = {}
+        # Holds the protocol objects with the session_id as key
+        self.factory.session_protocols = {}
+        # Holds the interested event list for the sessions
+        self.factory.interested_events = {}
+
+        self.listen = listen
+        if not listen:
+            return
+
+        if allow_remote:
+            hostname = ''
+        else:
+            hostname = 'localhost'
+
+        if interface:
+            hostname = interface
+
+        log.info('Starting DelugeRPC server %s:%s', hostname, port)
+
+        # Check for SSL keys and generate some if needed
+        check_ssl_keys()
+
+        cert = os.path.join(deluge.configmanager.get_config_dir('ssl'), 'daemon.cert')
+        pkey = os.path.join(deluge.configmanager.get_config_dir('ssl'), 'daemon.pkey')
+
+        try:
+            reactor.listenSSL(
+                port, self.factory, get_context_factory(cert, pkey), interface=hostname
+            )
+        except Exception as ex:
+            log.debug('Daemon already running or port not available.: %s', ex)
+            raise
+
+    def register_object(self, obj, name=None):
+        """
+        Registers an object to export it's rpc methods.  These methods should
+        be exported with the export decorator prior to registering the object.
+
+        :param obj: the object that we want to export
+        :type obj: object
+        :param name: the name to use, if None, it will be the class name of the object
+        :type name: str
+        """
+        if not name:
+            name = obj.__class__.__name__.lower()
+
+        for d in dir(obj):
+            if d[0] == '_':
+                continue
+            if getattr(getattr(obj, d), '_rpcserver_export', False):
+                log.debug('Registering method: %s', name + '.' + d)
+                self.factory.methods[name + '.' + d] = getattr(obj, d)
+
+    def deregister_object(self, obj):
+        """
+        Deregisters an objects exported rpc methods.
+
+        :param obj: the object that was previously registered
+
+        """
+        for key, value in self.factory.methods.items():
+            if value.__self__ == obj:
+                del self.factory.methods[key]
+
+    def get_object_method(self, name):
+        """
+        Returns a registered method.
+
+        :param name: the name of the method, usually in the form of 'object.method'
+        :type name: str
+
+        :returns: method
+
+        :raises KeyError: if `name` is not registered
+
+        """
+        return self.factory.methods[name]
+
+    def get_method_list(self):
+        """
+        Returns a list of the exported methods.
+
+        :returns: the exported methods
+        :rtype: list
+        """
+        return list(self.factory.methods)
+
+    def get_session_id(self):
+        """
+        Returns the session id of the current RPC.
+
+        :returns: the session id, this will be -1 if no connections have been made
+        :rtype: int
+
+        """
+        return self.factory.session_id
+
+    def get_session_user(self):
+        """
+        Returns the username calling the current RPC.
+
+        :returns: the username of the user calling the current RPC
+        :rtype: string
+
+        """
+        if not self.listen:
+            return 'localclient'
+        session_id = self.get_session_id()
+        if session_id > -1 and session_id in self.factory.authorized_sessions:
+            return self.factory.authorized_sessions[session_id].username
+        else:
+            # No connections made yet
+            return ''
+
+    def get_session_auth_level(self):
+        """
+        Returns the auth level of the user calling the current RPC.
+
+        :returns: the auth level
+        :rtype: int
+        """
+        if not self.listen or not self.is_session_valid(self.get_session_id()):
+            return AUTH_LEVEL_ADMIN
+        return self.factory.authorized_sessions[self.get_session_id()].auth_level
+
+    def get_rpc_auth_level(self, rpc):
+        """
+        Returns the auth level requirement for an exported rpc.
+
+        :returns: the auth level
+        :rtype: int
+        """
+        return self.factory.methods[rpc]._rpcserver_auth_level
+
+    def is_session_valid(self, session_id):
+        """
+        Checks if the session is still valid, eg, if the client is still connected.
+
+        :param session_id: the session id
+        :type session_id: int
+
+        :returns: True if the session is valid
+        :rtype: bool
+
+        """
+        return session_id in self.factory.authorized_sessions
+
+    def emit_event(self, event):
+        """
+        Emits the event to interested clients.
+
+        :param event: the event to emit
+        :type event: :class:`deluge.event.DelugeEvent`
+        """
+        log.debug('intevents: %s', self.factory.interested_events)
+        # Find sessions interested in this event
+        for session_id, interest in self.factory.interested_events.items():
+            if event.name in interest:
+                log.debug('Emit Event: %s %s', event.name, event.args)
+                # This session is interested so send a RPC_EVENT
+                self.factory.session_protocols[session_id].sendData(
+                    (RPC_EVENT, event.name, event.args)
+                )
+
+    def emit_event_for_session_id(self, session_id, event):
+        """
+        Emits the event to specified session_id.
+
+        :param session_id: the event to emit
+        :type session_id: int
+        :param event: the event to emit
+        :type event: :class:`deluge.event.DelugeEvent`
+        """
+        if not self.is_session_valid(session_id):
+            log.debug(
+                'Session ID %s is not valid. Not sending event "%s".',
+                session_id,
+                event.name,
+            )
+            return
+        if session_id not in self.factory.interested_events:
+            log.debug(
+                'Session ID %s is not interested in any events. Not sending event "%s".',
+                session_id,
+                event.name,
+            )
+            return
+        if event.name not in self.factory.interested_events[session_id]:
+            log.debug(
+                'Session ID %s is not interested in event "%s". Not sending it.',
+                session_id,
+                event.name,
+            )
+            return
+        log.debug(
+            'Sending event "%s" with args "%s" to session id "%s".',
+            event.name,
+            event.args,
+            session_id,
+        )
+        self.factory.session_protocols[session_id].sendData(
+            (RPC_EVENT, event.name, event.args)
+        )
+
+    def stop(self):
+        self.factory.state = 'stopping'

deluge/crypto_utils.py

@@ -0,0 +1,136 @@
+#
+# Copyright (C) 2007,2008 Andrew Resch <andrewresch@gmail.com>
+#
+# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
+# the additional special exception to link portions of this program with the OpenSSL library.
+# See LICENSE for more details.
+#
+
+import os
+import stat
+
+from OpenSSL import crypto
+from OpenSSL.crypto import FILETYPE_PEM
+from twisted.internet.ssl import (
+    AcceptableCiphers,
+    Certificate,
+    CertificateOptions,
+    KeyPair,
+    TLSVersion,
+)
+
+import deluge.configmanager
+
+# A TLS ciphers list.
+# Sources for more information on TLS ciphers:
+# - https://wiki.mozilla.org/Security/Server_Side_TLS
+# - https://www.ssllabs.com/projects/best-practices/index.html
+# - https://hynek.me/articles/hardening-your-web-servers-ssl-ciphers/
+#
+# This list was inspired by the `urllib3` library
+# - https://github.com/urllib3/urllib3/blob/master/urllib3/util/ssl_.py#L79
+#
+# The general intent is:
+# - prefer cipher suites that offer perfect forward secrecy (ECDHE),
+# - prefer AES-GCM over ChaCha20 because hardware-accelerated AES is common,
+# - disable NULL authentication, MD5 MACs and DSS for security reasons.
+TLS_CIPHERS = ':'.join(
+    [
+        'ECDH+AESGCM',
+        'ECDH+CHACHA20',
+        'AES256-GCM-SHA384',
+        'AES128-GCM-SHA256',
+        '!DSS' '!aNULL',
+        '!eNULL',
+        '!MD5',
+    ]
+)
+
+# This value tells OpenSSL to disable all SSL/TLS renegotiation.
+SSL_OP_NO_RENEGOTIATION = 0x40000000
+
+
+def get_context_factory(cert_path, pkey_path):
+    """OpenSSL context factory.
+
+    Generates an OpenSSL context factory using Twisted's CertificateOptions class.
+    This will keep a server cipher order.
+
+    Args:
+        cert_path (string): The path to the certificate file
+        pkey_path (string): The path to the private key file
+
+    Returns:
+        twisted.internet.ssl.CertificateOptions: An OpenSSL context factory
+    """
+
+    with open(cert_path) as cert:
+        certificate = Certificate.loadPEM(cert.read()).original
+    with open(pkey_path) as pkey:
+        private_key = KeyPair.load(pkey.read(), FILETYPE_PEM).original
+    ciphers = AcceptableCiphers.fromOpenSSLCipherString(TLS_CIPHERS)
+    cert_options = CertificateOptions(
+        privateKey=private_key,
+        certificate=certificate,
+        raiseMinimumTo=TLSVersion.TLSv1_2,
+        acceptableCiphers=ciphers,
+    )
+    ctx = cert_options.getContext()
+    ctx.use_certificate_chain_file(cert_path)
+    ctx.set_options(SSL_OP_NO_RENEGOTIATION)
+
+    return cert_options
+
+
+def check_ssl_keys():
+    """
+    Check for SSL cert/key and create them if necessary
+    """
+    ssl_dir = deluge.configmanager.get_config_dir('ssl')
+    if not os.path.exists(ssl_dir):
+        # The ssl folder doesn't exist so we need to create it
+        os.makedirs(ssl_dir)
+        generate_ssl_keys()
+    else:
+        for f in ('daemon.pkey', 'daemon.cert'):
+            if not os.path.exists(os.path.join(ssl_dir, f)):
+                generate_ssl_keys()
+                break
+
+
+def generate_ssl_keys():
+    """
+    This method generates a new SSL key/cert.
+    """
+    digest = 'sha256'
+
+    # Generate key pair
+    pkey = crypto.PKey()
+    pkey.generate_key(crypto.TYPE_RSA, 2048)
+
+    # Generate cert request
+    req = crypto.X509Req()
+    subj = req.get_subject()
+    setattr(subj, 'CN', 'Deluge Daemon')
+    req.set_pubkey(pkey)
+    req.sign(pkey, digest)
+
+    # Generate certificate
+    cert = crypto.X509()
+    cert.set_serial_number(0)
+    cert.gmtime_adj_notBefore(0)
+    cert.gmtime_adj_notAfter(60 * 60 * 24 * 365 * 3)  # Three Years
+    cert.set_issuer(req.get_subject())
+    cert.set_subject(req.get_subject())
+    cert.set_pubkey(req.get_pubkey())
+    cert.sign(pkey, digest)
+
+    # Write out files
+    ssl_dir = deluge.configmanager.get_config_dir('ssl')
+    with open(os.path.join(ssl_dir, 'daemon.pkey'), 'wb') as _file:
+        _file.write(crypto.dump_privatekey(crypto.FILETYPE_PEM, pkey))
+    with open(os.path.join(ssl_dir, 'daemon.cert'), 'wb') as _file:
+        _file.write(crypto.dump_certificate(crypto.FILETYPE_PEM, cert))
+    # Make the files only readable by this user
+    for f in ('daemon.pkey', 'daemon.cert'):
+        os.chmod(os.path.join(ssl_dir, f), stat.S_IREAD | stat.S_IWRITE)

deluge/decorators.py

@@ -0,0 +1,218 @@
+#
+# Copyright (C) 2010 John Garland <johnnybg+deluge@gmail.com>
+#
+# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
+# the additional special exception to link portions of this program with the OpenSSL library.
+# See LICENSE for more details.
+#
+
+import inspect
+import re
+import warnings
+from functools import wraps
+from typing import Any, Callable, Coroutine, TypeVar
+
+from twisted.internet import defer
+
+
+def proxy(proxy_func):
+    """
+    Factory class which returns a decorator that passes
+    the decorated function to a proxy function
+
+    :param proxy_func: the proxy function
+    :type proxy_func: function
+    """
+
+    def decorator(func):
+        @wraps(func)
+        def wrapper(*args, **kwargs):
+            return proxy_func(func, *args, **kwargs)
+
+        return wrapper
+
+    return decorator
+
+
+def overrides(*args):
+    """
+    Decorater function to specify when class methods override
+    super class methods.
+
+    When used as
+    @overrides
+    def funcname
+
+    the argument will be the funcname function.
+
+    When used as
+    @overrides(BaseClass)
+    def funcname
+
+    the argument will be the BaseClass
+
+    """
+    stack = inspect.stack()
+    if inspect.isfunction(args[0]):
+        return _overrides(stack, args[0])
+    else:
+        # One or more classes are specified, so return a function that will be
+        # called with the real function as argument
+        def ret_func(func, **kwargs):
+            return _overrides(stack, func, explicit_base_classes=args)
+
+        return ret_func
+
+
+def _overrides(stack, method, explicit_base_classes=None):
+    # stack[0]=overrides, stack[1]=inside class def'n, stack[2]=outside class def'n
+    classes = {}
+    derived_class_locals = stack[2][0].f_locals
+
+    # Find all super classes
+    m = re.search(r'class\s(.+)\((.+)\)\s*\:', stack[2][4][0])
+    class_name = m.group(1)
+    base_classes = m.group(2)
+
+    # Handle multiple inheritance
+    base_classes = [s.strip() for s in base_classes.split(',')]
+    check_classes = base_classes
+
+    if not base_classes:
+        raise ValueError(
+            'overrides decorator: unable to determine base class of class "%s"'
+            % class_name
+        )
+
+    def get_class(cls_name):
+        if '.' not in cls_name:
+            return derived_class_locals[cls_name]
+        else:
+            components = cls_name.split('.')
+            # obj is either a module or a class
+            obj = derived_class_locals[components[0]]
+            for c in components[1:]:
+                assert inspect.ismodule(obj) or inspect.isclass(obj)
+                obj = getattr(obj, c)
+            return obj
+
+    if explicit_base_classes:
+        # One or more base classes are explicitly given, check only those classes
+        override_classes = re.search(r'\s*@overrides\((.+)\)\s*', stack[1][4][0]).group(
+            1
+        )
+        override_classes = [c.strip() for c in override_classes.split(',')]
+        check_classes = override_classes
+
+    for c in base_classes + check_classes:
+        classes[c] = get_class(c)
+
+    # Verify that the explicit override class is one of base classes
+    if explicit_base_classes:
+        from itertools import product
+
+        for bc, cc in product(base_classes, check_classes):
+            if issubclass(classes[bc], classes[cc]):
+                break
+        else:
+            raise Exception(
+                'Excplicit override class "%s" is not a super class of: %s'
+                % (explicit_base_classes, class_name)
+            )
+        if not all(hasattr(classes[cls], method.__name__) for cls in check_classes):
+            for cls in check_classes:
+                if not hasattr(classes[cls], method.__name__):
+                    raise Exception(
+                        'Function override "%s" not found in superclass: %s\n%s'
+                        % (
+                            method.__name__,
+                            cls,
+                            f'File: {stack[1][1]}:{stack[1][2]}',
+                        )
+                    )
+
+    if not any(hasattr(classes[cls], method.__name__) for cls in check_classes):
+        raise Exception(
+            'Function override "%s" not found in any superclass: %s\n%s'
+            % (
+                method.__name__,
+                check_classes,
+                f'File: {stack[1][1]}:{stack[1][2]}',
+            )
+        )
+    return method
+
+
+def deprecated(func):
+    """This is a decorator which can be used to mark function as deprecated.
+
+    It will result in a warning being emitted when the function is used.
+
+    """
+
+    @wraps(func)
+    def depr_func(*args, **kwargs):
+        warnings.simplefilter('always', DeprecationWarning)  # Turn off filter
+        warnings.warn(
+            f'Call to deprecated function {func.__name__}.',
+            category=DeprecationWarning,
+            stacklevel=2,
+        )
+        warnings.simplefilter('default', DeprecationWarning)  # Reset filter
+        return func(*args, **kwargs)
+
+    return depr_func
+
+
+class CoroutineDeferred(defer.Deferred):
+    """Wraps a coroutine in a Deferred.
+    It will dynamically pass through the underlying coroutine without wrapping where apporpriate."""
+
+    def __init__(self, coro: Coroutine):
+        # Delay this import to make sure a reactor was installed first
+        from twisted.internet import reactor
+
+        super().__init__()
+        self.coro = coro
+        self.awaited = None
+        self.activate_deferred = reactor.callLater(0, self.activate)
+
+    def __await__(self):
+        if self.awaited in [None, True]:
+            self.awaited = True
+            return self.coro.__await__()
+        # Already in deferred mode
+        return super().__await__()
+
+    def activate(self):
+        """If the result wasn't awaited before the next context switch, we turn it into a deferred."""
+        if self.awaited is None:
+            self.awaited = False
+            try:
+                d = defer.Deferred.fromCoroutine(self.coro)
+            except AttributeError:
+                # Fallback for Twisted <= 21.2 without fromCoroutine
+                d = defer.ensureDeferred(self.coro)
+            d.chainDeferred(self)
+
+    def addCallbacks(self, *args, **kwargs):  # noqa: N802
+        assert not self.awaited, 'Cannot add callbacks to an already awaited coroutine.'
+        self.activate()
+        return super().addCallbacks(*args, **kwargs)
+
+
+_RetT = TypeVar('_RetT')
+
+
+def maybe_coroutine(
+    f: Callable[..., Coroutine[Any, Any, _RetT]]
+) -> 'Callable[..., defer.Deferred[_RetT]]':
+    """Wraps a coroutine function to make it usable as a normal function that returns a Deferred."""
+
+    @wraps(f)
+    def wrapper(*args, **kwargs):
+        # Uncomment for quick testing to make sure CoroutineDeferred magic isn't at fault
+        # return defer.ensureDeferred(f(*args, **kwargs))
+        return CoroutineDeferred(f(*args, **kwargs))
+
+    return wrapper

deluge/error.py

@@ -0,0 +1,96 @@
+#
+# Copyright (C) 2008 Andrew Resch <andrewresch@gmail.com>
+# Copyright (C) 2011 Pedro Algarvio <pedro@algarvio.me>
+#
+# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
+# the additional special exception to link portions of this program with the OpenSSL library.
+# See LICENSE for more details.
+#
+
+
+class DelugeError(Exception):
+    def __new__(cls, *args, **kwargs):
+        inst = super().__new__(cls, *args, **kwargs)
+        inst._args = args
+        inst._kwargs = kwargs
+        return inst
+
+    def __init__(self, message=None):
+        super().__init__(message)
+        self.message = message
+
+    def __str__(self):
+        return self.message
+
+
+class DaemonRunningError(DelugeError):
+    pass
+
+
+class InvalidTorrentError(DelugeError):
+    pass
+
+
+class AddTorrentError(DelugeError):
+    pass
+
+
+class InvalidPathError(DelugeError):
+    pass
+
+
+class WrappedException(DelugeError):
+    def __init__(self, message, exception_type, traceback):
+        super().__init__(message)
+        self.type = exception_type
+        self.traceback = traceback
+
+    def __str__(self):
+        return f'{self.message}\n{self.traceback}'
+
+
+class _ClientSideRecreateError(DelugeError):
+    pass
+
+
+class IncompatibleClient(_ClientSideRecreateError):
+    def __init__(self, daemon_version):
+        self.daemon_version = daemon_version
+        msg = (
+            'Your deluge client is not compatible with the daemon. '
+            'Please upgrade your client to %(daemon_version)s'
+        ) % {'daemon_version': self.daemon_version}
+        super().__init__(message=msg)
+
+
+class NotAuthorizedError(_ClientSideRecreateError):
+    def __init__(self, current_level, required_level):
+        msg = ('Auth level too low: %(current_level)s < %(required_level)s') % {
+            'current_level': current_level,
+            'required_level': required_level,
+        }
+        super().__init__(message=msg)
+        self.current_level = current_level
+        self.required_level = required_level
+
+
+class _UsernameBasedPasstroughError(_ClientSideRecreateError):
+    def __init__(self, message, username):
+        super().__init__(message)
+        self.username = username
+
+
+class BadLoginError(_UsernameBasedPasstroughError):
+    pass
+
+
+class AuthenticationRequired(_UsernameBasedPasstroughError):
+    pass
+
+
+class AuthManagerError(_UsernameBasedPasstroughError):
+    pass
+
+
+class LibtorrentImportError(ImportError):
+    pass

deluge/event.py

@@ -0,0 +1,319 @@
+#
+# Copyright (C) 2009 Andrew Resch <andrewresch@gmail.com>
+#
+# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
+# the additional special exception to link portions of this program with the OpenSSL library.
+# See LICENSE for more details.
+#
+
+"""
+Event module.
+
+This module describes the types of events that can be generated by the daemon
+and subsequently emitted to the clients.
+
+"""
+known_events = {}
+
+
+class DelugeEventMetaClass(type):
+    """
+    This metaclass simply keeps a list of all events classes created.
+    """
+
+    def __init__(cls, name, bases, dct):  # pylint: disable=bad-mcs-method-argument
+        super().__init__(name, bases, dct)
+        if name != 'DelugeEvent':
+            known_events[name] = cls
+
+
+class DelugeEvent(metaclass=DelugeEventMetaClass):
+    """
+    The base class for all events.
+
+    :prop name: this is the name of the class which is in-turn the event name
+    :type name: string
+    :prop args: a list of the attribute values
+    :type args: list
+
+    """
+
+    def _get_name(self):
+        return self.__class__.__name__
+
+    def _get_args(self):
+        if not hasattr(self, '_args'):
+            return []
+        return self._args
+
+    name = property(fget=_get_name)
+    args = property(fget=_get_args)
+
+
+class TorrentAddedEvent(DelugeEvent):
+    """
+    Emitted when a new torrent is successfully added to the session.
+    """
+
+    def __init__(self, torrent_id, from_state):
+        """
+        :param torrent_id: the torrent_id of the torrent that was added
+        :type torrent_id: string
+        :param from_state: was the torrent loaded from state? Or is it a new torrent.
+        :type from_state: bool
+        """
+        self._args = [torrent_id, from_state]
+
+
+class TorrentRemovedEvent(DelugeEvent):
+    """
+    Emitted when a torrent has been removed from the session.
+    """
+
+    def __init__(self, torrent_id):
+        """
+        :param torrent_id: the torrent_id
+        :type torrent_id: string
+        """
+        self._args = [torrent_id]
+
+
+class PreTorrentRemovedEvent(DelugeEvent):
+    """
+    Emitted when a torrent is about to be removed from the session.
+    """
+
+    def __init__(self, torrent_id):
+        """
+        :param torrent_id: the torrent_id
+        :type torrent_id: string
+        """
+        self._args = [torrent_id]
+
+
+class TorrentStateChangedEvent(DelugeEvent):
+    """
+    Emitted when a torrent changes state.
+    """
+
+    def __init__(self, torrent_id, state):
+        """
+        :param torrent_id: the torrent_id
+        :type torrent_id: string
+        :param state: the new state
+        :type state: string
+        """
+        self._args = [torrent_id, state]
+
+
+class TorrentTrackerStatusEvent(DelugeEvent):
+    """
+    Emitted when a torrents tracker status changes.
+    """
+
+    def __init__(self, torrent_id, status):
+        """
+        Args:
+            torrent_id (str): the torrent_id
+            status (str): the new status
+        """
+        self._args = [torrent_id, status]
+
+
+class TorrentQueueChangedEvent(DelugeEvent):
+    """
+    Emitted when the queue order has changed.
+    """
+
+    pass
+
+
+class TorrentFolderRenamedEvent(DelugeEvent):
+    """
+    Emitted when a folder within a torrent has been renamed.
+    """
+
+    def __init__(self, torrent_id, old, new):
+        """
+        :param torrent_id: the torrent_id
+        :type torrent_id: string
+        :param old: the old folder name
+        :type old: string
+        :param new: the new folder name
+        :type new: string
+        """
+        self._args = [torrent_id, old, new]
+
+
+class TorrentFileRenamedEvent(DelugeEvent):
+    """
+    Emitted when a file within a torrent has been renamed.
+    """
+
+    def __init__(self, torrent_id, index, name):
+        """
+        :param torrent_id: the torrent_id
+        :type torrent_id: string
+        :param index: the index of the file
+        :type index: int
+        :param name: the new filename
+        :type name: string
+        """
+        self._args = [torrent_id, index, name]
+
+
+class TorrentFinishedEvent(DelugeEvent):
+    """
+    Emitted when a torrent finishes downloading.
+    """
+
+    def __init__(self, torrent_id):
+        """
+        :param torrent_id: the torrent_id
+        :type torrent_id: string
+        """
+        self._args = [torrent_id]
+
+
+class TorrentResumedEvent(DelugeEvent):
+    """
+    Emitted when a torrent resumes from a paused state.
+    """
+
+    def __init__(self, torrent_id):
+        """
+        :param torrent_id: the torrent_id
+        :type torrent_id: string
+        """
+        self._args = [torrent_id]
+
+
+class TorrentFileCompletedEvent(DelugeEvent):
+    """
+    Emitted when a file completes.
+    """
+
+    def __init__(self, torrent_id, index):
+        """
+        :param torrent_id: the torrent_id
+        :type torrent_id: string
+        :param index: the file index
+        :type index: int
+        """
+        self._args = [torrent_id, index]
+
+
+class TorrentStorageMovedEvent(DelugeEvent):
+    """
+    Emitted when the storage location for a torrent has been moved.
+    """
+
+    def __init__(self, torrent_id, path):
+        """
+        :param torrent_id: the torrent_id
+        :type torrent_id: string
+        :param path: the new location
+        :type path: string
+        """
+        self._args = [torrent_id, path]
+
+
+class CreateTorrentProgressEvent(DelugeEvent):
+    """
+    Emitted when creating a torrent file remotely.
+    """
+
+    def __init__(self, piece_count, num_pieces):
+        self._args = [piece_count, num_pieces]
+
+
+class NewVersionAvailableEvent(DelugeEvent):
+    """
+    Emitted when a more recent version of Deluge is available.
+    """
+
+    def __init__(self, new_release):
+        """
+        :param new_release: the new version that is available
+        :type new_release: string
+        """
+        self._args = [new_release]
+
+
+class SessionStartedEvent(DelugeEvent):
+    """
+    Emitted when a session has started.  This typically only happens once when
+    the daemon is initially started.
+    """
+
+    pass
+
+
+class SessionPausedEvent(DelugeEvent):
+    """
+    Emitted when the session has been paused.
+    """
+
+    pass
+
+
+class SessionResumedEvent(DelugeEvent):
+    """
+    Emitted when the session has been resumed.
+    """
+
+    pass
+
+
+class ConfigValueChangedEvent(DelugeEvent):
+    """
+    Emitted when a config value changes in the Core.
+    """
+
+    def __init__(self, key, value):
+        """
+        :param key: the key that changed
+        :type key: string
+        :param value: the new value of the `:param:key`
+        """
+        self._args = [key, value]
+
+
+class PluginEnabledEvent(DelugeEvent):
+    """
+    Emitted when a plugin is enabled in the Core.
+    """
+
+    def __init__(self, plugin_name):
+        self._args = [plugin_name]
+
+
+class PluginDisabledEvent(DelugeEvent):
+    """
+    Emitted when a plugin is disabled in the Core.
+    """
+
+    def __init__(self, plugin_name):
+        self._args = [plugin_name]
+
+
+class ClientDisconnectedEvent(DelugeEvent):
+    """
+    Emitted when a client disconnects.
+    """
+
+    def __init__(self, session_id):
+        self._args = [session_id]
+
+
+class ExternalIPEvent(DelugeEvent):
+    """
+    Emitted when the external ip address is received from libtorrent.
+    """
+
+    def __init__(self, external_ip):
+        """
+        Args:
+            external_ip (str): The IP address.
+        """
+        self._args = [external_ip]

deluge/httpdownloader.py

@@ -0,0 +1,333 @@
+#
+# Copyright (C) 2009 Andrew Resch <andrewresch@gmail.com>
+#
+# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
+# the additional special exception to link portions of this program with the OpenSSL library.
+# See LICENSE for more details.
+#
+
+import cgi
+import logging
+import os.path
+import zlib
+
+from twisted.internet import reactor
+from twisted.internet.defer import Deferred
+from twisted.python.failure import Failure
+from twisted.web import client, http
+from twisted.web._newclient import HTTPClientParser
+from twisted.web.error import Error, PageRedirect
+from twisted.web.http_headers import Headers
+from twisted.web.iweb import IAgent
+from zope.interface import implementer
+
+from deluge.common import get_version
+
+log = logging.getLogger(__name__)
+
+
+class CompressionDecoder(client.GzipDecoder):
+    """A compression decoder for gzip, x-gzip and deflate."""
+
+    def deliverBody(self, protocol):  # NOQA: N802
+        self.original.deliverBody(CompressionDecoderProtocol(protocol, self.original))
+
+
+class CompressionDecoderProtocol(client._GzipProtocol):
+    """A compression decoder protocol for CompressionDecoder."""
+
+    def __init__(self, protocol, response):
+        super().__init__(protocol, response)
+        self._zlibDecompress = zlib.decompressobj(32 + zlib.MAX_WBITS)
+
+
+class BodyHandler(HTTPClientParser):
+    """An HTTP parser that saves the response to a file."""
+
+    def __init__(self, request, finished, length, agent, encoding=None):
+        """BodyHandler init.
+
+        Args:
+            request (t.w.i.IClientRequest): The parser request.
+            finished (Deferred): A Deferred to handle the finished response.
+            length (int): The length of the response.
+            agent (t.w.i.IAgent): The agent from which the request was sent.
+        """
+        super().__init__(request, finished)
+        self.agent = agent
+        self.finished = finished
+        self.total_length = length
+        self.current_length = 0
+        self.data = b''
+        self.encoding = encoding
+
+    def dataReceived(self, data):  # NOQA: N802
+        self.current_length += len(data)
+        self.data += data
+        if self.agent.part_callback:
+            self.agent.part_callback(data, self.current_length, self.total_length)
+
+    def connectionLost(self, reason):  # NOQA: N802
+        if self.encoding:
+            self.data = self.data.decode(self.encoding).encode('utf8')
+        with open(self.agent.filename, 'wb') as _file:
+            _file.write(self.data)
+        self.finished.callback(self.agent.filename)
+        self.state = 'DONE'
+        HTTPClientParser.connectionLost(self, reason)
+
+
+@implementer(IAgent)
+class HTTPDownloaderAgent:
+    """A File Downloader Agent."""
+
+    def __init__(
+        self,
+        agent,
+        filename,
+        part_callback=None,
+        force_filename=False,
+        allow_compression=True,
+        handle_redirect=True,
+    ):
+        """HTTPDownloaderAgent init.
+
+        Args:
+            agent (t.w.c.Agent): The agent which will send the requests.
+            filename (str): The filename to save the file as.
+            force_filename (bool): Forces use of the supplied filename,
+                regardless of header content.
+            part_callback (func): A function to be called when a part of data
+                is received, it's signature should be:
+                    func(data, current_length, total_length)
+        """
+
+        self.handle_redirect = handle_redirect
+        self.agent = agent
+        self.filename = filename
+        self.part_callback = part_callback
+        self.force_filename = force_filename
+        self.allow_compression = allow_compression
+        self.decoder = None
+
+    def request_callback(self, response):
+        finished = Deferred()
+
+        if not self.handle_redirect and response.code in (
+            http.MOVED_PERMANENTLY,
+            http.FOUND,
+            http.SEE_OTHER,
+            http.TEMPORARY_REDIRECT,
+        ):
+            location = response.headers.getRawHeaders(b'location')[0]
+            error = PageRedirect(response.code, location=location)
+            finished.errback(Failure(error))
+        elif response.code >= 400:
+            error = Error(response.code)
+            finished.errback(Failure(error))
+        else:
+            headers = response.headers
+            body_length = int(headers.getRawHeaders(b'content-length', default=[0])[0])
+
+            if headers.hasHeader(b'content-disposition') and not self.force_filename:
+                content_disp = headers.getRawHeaders(b'content-disposition')[0].decode(
+                    'utf-8'
+                )
+                content_disp_params = cgi.parse_header(content_disp)[1]
+                if 'filename' in content_disp_params:
+                    new_file_name = content_disp_params['filename']
+                    new_file_name = sanitise_filename(new_file_name)
+                    new_file_name = os.path.join(
+                        os.path.split(self.filename)[0], new_file_name
+                    )
+
+                    count = 1
+                    fileroot = os.path.splitext(new_file_name)[0]
+                    fileext = os.path.splitext(new_file_name)[1]
+                    while os.path.isfile(new_file_name):
+                        # Increment filename if already exists
+                        new_file_name = f'{fileroot}-{count}{fileext}'
+                        count += 1
+
+                    self.filename = new_file_name
+
+            cont_type_header = headers.getRawHeaders(b'content-type')[0].decode()
+            cont_type, params = cgi.parse_header(cont_type_header)
+            # Only re-ecode text content types.
+            encoding = None
+            if cont_type.startswith('text/'):
+                encoding = params.get('charset', None)
+            response.deliverBody(
+                BodyHandler(response.request, finished, body_length, self, encoding)
+            )
+
+        return finished
+
+    def request(self, method, uri, headers=None, body_producer=None):
+        """Issue a new request to the wrapped agent.
+
+        Args:
+            method (bytes): The HTTP method to use.
+            uri (bytes): The url to download from.
+            headers (t.w.h.Headers, optional): Any extra headers to send.
+            body_producer (t.w.i.IBodyProducer, optional): Request body data.
+
+        Returns:
+            Deferred: The filename of the of the downloaded file.
+        """
+        if headers is None:
+            headers = Headers()
+
+        if not headers.hasHeader(b'User-Agent'):
+            version = get_version()
+            user_agent = 'Deluge/%s (https://deluge-torrent.org)' % version
+            headers.addRawHeader('User-Agent', user_agent)
+
+        d = self.agent.request(
+            method=method, uri=uri, headers=headers, bodyProducer=body_producer
+        )
+        d.addCallback(self.request_callback)
+        return d
+
+
+def sanitise_filename(filename):
+    """Sanitises a filename to use as a download destination file.
+
+    Logs any filenames that could be considered malicious.
+
+    filename (str): The filename to sanitise.
+
+    Returns:
+        str: The sanitised filename.
+    """
+
+    # Remove any quotes
+    filename = filename.strip('\'"')
+
+    if os.path.basename(filename) != filename:
+        # Dodgy server, log it
+        log.warning(
+            'Potentially malicious server: trying to write to file: %s', filename
+        )
+        # Only use the basename
+        filename = os.path.basename(filename)
+
+    filename = filename.strip()
+    if filename.startswith('.') or ';' in filename or '|' in filename:
+        # Dodgy server, log it
+        log.warning(
+            'Potentially malicious server: trying to write to file: %s', filename
+        )
+
+    return filename
+
+
+def _download_file(
+    url,
+    filename,
+    callback=None,
+    headers=None,
+    force_filename=False,
+    allow_compression=True,
+    handle_redirects=True,
+):
+    """Downloads a file from a specific URL and returns a Deferred.
+
+    A callback function can be specified to be called as parts are received.
+
+    Args:
+        url (str): The url to download from.
+        filename (str): The filename to save the file as.
+        callback (func): A function to be called when partial data is received,
+            it's signature should be: func(data, current_length, total_length)
+        headers (dict): Any optional headers to send.
+        force_filename (bool): Force using the filename specified rather than
+            one the server may suggest.
+        allow_compression (bool): Allows gzip & deflate decoding.
+
+    Returns:
+        Deferred: The filename of the downloaded file.
+
+    Raises:
+        t.w.e.PageRedirect
+        t.w.e.Error: for all other HTTP response errors
+    """
+
+    agent = client.Agent(reactor)
+
+    if allow_compression:
+        enc_accepted = ['gzip', 'x-gzip', 'deflate']
+        decoders = [(enc.encode(), CompressionDecoder) for enc in enc_accepted]
+        agent = client.ContentDecoderAgent(agent, decoders)
+    if handle_redirects:
+        agent = client.RedirectAgent(agent)
+
+    agent = HTTPDownloaderAgent(
+        agent, filename, callback, force_filename, allow_compression, handle_redirects
+    )
+
+    # The Headers init expects dict values to be a list.
+    if headers:
+        for name, value in list(headers.items()):
+            if not isinstance(value, list):
+                headers[name] = [value]
+
+    return agent.request(b'GET', url.encode(), Headers(headers))
+
+
+def download_file(
+    url,
+    filename,
+    callback=None,
+    headers=None,
+    force_filename=False,
+    allow_compression=True,
+    handle_redirects=True,
+):
+    """Downloads a file from a specific URL and returns a Deferred.
+
+    A callback function can be specified to be called as parts are received.
+
+    Args:
+        url (str): The url to download from.
+        filename (str): The filename to save the file as.
+        callback (func): A function to be called when partial data is received,
+            it's signature should be: func(data, current_length, total_length).
+        headers (dict): Any optional headers to send.
+        force_filename (bool): Force the filename specified rather than one the
+            server may suggest.
+        allow_compression (bool): Allows gzip & deflate decoding.
+        handle_redirects (bool): HTTP redirects handled automatically or not.
+
+    Returns:
+        Deferred: The filename of the downloaded file.
+
+    Raises:
+        t.w.e.PageRedirect: If handle_redirects is False.
+        t.w.e.Error: For all other HTTP response errors.
+    """
+
+    def on_download_success(result):
+        log.debug('Download success!')
+        return result
+
+    def on_download_fail(failure):
+        log.warning(
+            'Error occurred downloading file from "%s": %s',
+            url,
+            failure.getErrorMessage(),
+        )
+        result = failure
+        return result
+
+    d = _download_file(
+        url,
+        filename,
+        callback=callback,
+        headers=headers,
+        force_filename=force_filename,
+        allow_compression=allow_compression,
+        handle_redirects=handle_redirects,
+    )
+    d.addCallbacks(on_download_success, on_download_fail)
+    return d

deluge/i18n/__init__.py

@@ -0,0 +1,15 @@
+from .util import (
+    I18N_DOMAIN,
+    get_languages,
+    set_language,
+    setup_mock_translation,
+    setup_translation,
+)
+
+__all__ = [
+    'I18N_DOMAIN',
+    'set_language',
+    'get_languages',
+    'setup_translation',
+    'setup_mock_translation',
+]

deluge/i18n/languages.py

@@ -0,0 +1,114 @@
+#
+# This file is public domain.
+#
+
+# Language code for this installation. All choices can be found here:
+# http://www.i18nguy.com/unicode/language-identifiers.html
+LANGUAGE_CODE = 'en-us'
+
+
+# Deferred translation
+def _(message):
+    return message
+
+
+# Languages we provide translations for, out of the box.
+LANGUAGES = {
+    'af': _('Afrikaans'),
+    'ar': _('Arabic'),
+    'ast': _('Asturian'),
+    'az': _('Azerbaijani'),
+    'bg': _('Bulgarian'),
+    'be': _('Belarusian'),
+    'bn': _('Bengali'),
+    'br': _('Breton'),
+    'bs': _('Bosnian'),
+    'ca': _('Catalan'),
+    'cs': _('Czech'),
+    'cy': _('Welsh'),
+    'da': _('Danish'),
+    'de': _('German'),
+    'el': _('Greek'),
+    'en': _('English'),
+    'en_AU': _('English (Australia)'),
+    'en_CA': _('English (Canada)'),
+    'en_GB': _('English (United Kingdom)'),
+    'eo': _('Esperanto'),
+    'es': _('Spanish'),
+    'es-ar': _('Argentinian Spanish'),
+    'es-mx': _('Mexican Spanish'),
+    'es-ni': _('Nicaraguan Spanish'),
+    'es-ve': _('Venezuelan Spanish'),
+    'et': _('Estonian'),
+    'eu': _('Basque'),
+    'fa': _('Persian'),
+    'fi': _('Finnish'),
+    'fr': _('French'),
+    'fy': _('Frisian'),
+    'ga': _('Irish'),
+    'gl': _('Galician'),
+    'he': _('Hebrew'),
+    'hi': _('Hindi'),
+    'hr': _('Croatian'),
+    'hu': _('Hungarian'),
+    'ia': _('Interlingua'),
+    'id': _('Indonesian'),
+    'is': _('Icelandic'),
+    'it': _('Italian'),
+    'iu': _('Inuktitut'),
+    'ja': _('Japanese'),
+    'ka': _('Georgian'),
+    'kk': _('Kazakh'),
+    'km': _('Khmer'),
+    'kn': _('Kannada'),
+    'ko': _('Korean'),
+    'ku': _('Kurdish'),
+    'la': _('Latin'),
+    'lb': _('Luxembourgish'),
+    'lt': _('Lithuanian'),
+    'lv': _('Latvian'),
+    'mk': _('Macedonian'),
+    'ml': _('Malayalam'),
+    'mn': _('Mongolian'),
+    'ms': _('Mayaly'),
+    'my': _('Burmese'),
+    'nb': _('Norwegian Bokmal'),
+    'ne': _('Nepali'),
+    'nds': _('Low German'),
+    'nl': _('Dutch'),
+    'nn': _('Norwegian Nynorsk'),
+    'os': _('Ossetic'),
+    'pa': _('Punjabi'),
+    'pl': _('Polish'),
+    'pms': _('Piedmontese'),
+    'pt': _('Portuguese'),
+    'pt_BR': _('Brazilian Portuguese'),
+    'ro': _('Romanian'),
+    'ru': _('Russian'),
+    'sk': _('Slovak'),
+    'sl': _('Slovenian'),
+    'si': _('Sinhalese'),
+    'sq': _('Albanian'),
+    'sr': _('Serbian'),
+    'sr-latn': _('Serbian Latin'),
+    'sv': _('Swedish'),
+    'sw': _('Swahili'),
+    'ta': _('Tamil'),
+    'te': _('Telugu'),
+    'th': _('Thai'),
+    'tl': _('Tagalog'),
+    'tlh': _('Klingon'),
+    'tr': _('Turkish'),
+    'tt': _('Tatar'),
+    'udm': _('Udmurt'),
+    'uk': _('Ukrainian'),
+    'ur': _('Urdu'),
+    'vi': _('Vietnamese'),
+    'zh_CN': _('Chinese (Simplified)'),
+    'zh_HK': _('Chinese (Hong Kong)'),
+    'zh-hans': _('Simplified Chinese'),
+    'zh-hant': _('Traditional Chinese'),
+    'zh_TW': _('Chinese (Taiwan)'),
+}
+
+del _