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Casper V. Kristensen 2019-10-09 21:42:07 +02:00
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### Python Patch ###
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### Python.VirtualEnv Stack ###
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[Ii]nclude
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A patent license is "discriminatory" if it does not include within
the scope of its coverage, prohibits the exercise of, or is
conditioned on the non-exercise of one or more of the rights that are
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conveyed by you (or copies made from those copies), or (b) primarily
for and in connection with specific products or compilations that
contain the covered work, unless you entered into that arrangement,
or that patent license was granted, prior to 28 March 2007.
Nothing in this License shall be construed as excluding or limiting
any implied license or other defenses to infringement that may
otherwise be available to you under applicable patent law.
12. No Surrender of Others' Freedom.
If conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot convey a
covered work so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you may
not convey it at all. For example, if you agree to terms that obligate you
to collect a royalty for further conveying from those to whom you convey
the Program, the only way you could satisfy both those terms and this
License would be to refrain entirely from conveying the Program.
13. Use with the GNU Affero General Public License.
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
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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
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14. Revised Versions of this License.
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the GNU General Public License from time to time. Such new versions will
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Program, unless a warranty or assumption of liability accompanies a
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How to Apply These Terms to Your New Programs
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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.
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
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<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 3 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, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program 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, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<https://www.gnu.org/licenses/>.
The GNU 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 Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.

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# wau: *World of Warcraft AddOn Updater*
## Installation
The easiest way to install the application is to use pip:
```bash
pip3 install --upgrade https://git.caspervk.net/caspervk/wau/archive/master.tar.gz
```
**It requires Python 3.7 or later.**
## Usage
The program can be started by running `wau` or `python3 -m wau`, depending on system configuration.
```text
usage: wau [-h] [-v] {install,remove,update,list,clean,export} ...
World of Warcraft AddOn Updater v0.0.1 by Casper V. Kristensen.
positional arguments:
{install,remove,update,list,clean,export}
install Install a new AddOn.
remove Remove a previously installed AddOn.
update Install newest version of all AddOns.
list List installed AddOn.
clean Clear out the local cache of retrieved files.
export Export the list of installed AddOns for install
elsewhere.
optional arguments:
-h, --help show this help message and exit
-v, --verbose Increase verbosity level. Can be used multiple times.
For more information, see <https://git.caspervk.net/caspervk/wau>.
```
## Supported AddOn Providers
- CurseForge.com
- WowInterface.com
- Git
- ~~GitHub Releases~~ (coming soon™)
- HTTP
## Screenshots
![Basic Interaction](images/basic.png)

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# Always prefer setuptools over distutils
from setuptools import setup, find_packages
# To use a consistent encoding
from codecs import open
from os import path
from wau import __author__, __version__, __licence__, __url__
here = path.abspath(path.dirname(__file__))
# Get the long description from the README file
with open(path.join(here, "README.md"), encoding="utf-8") as f:
long_description = f.read()
setup(
name="wau",
version=__version__,
description="World of Warcraft AddOn Updater",
long_description=long_description,
long_description_content_type="text/markdown",
url=__url__,
project_urls={
"Source": __url__
},
author=__author__,
classifiers=[
"Development Status :: 3 - Alpha",
"License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)",
"Programming Language :: Python :: 3",
],
python_requires=">=3.7",
keywords="world of warcraft wow addon updater",
license=__licence__,
packages=find_packages(exclude=["tests"]),
include_package_data=True,
package_data={
"wau": [
"*.default"
]
},
install_requires=[
"tabulate"
],
extras_require={
"dev": [
"wheel"
]
},
entry_points={
"console_scripts": [
"wau = wau.cli:main"
]
},
)

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__version__ = "0.0.1"
__author__ = "Casper V. Kristensen"
__licence__ = "GPLv3"
__url__ = "https://git.caspervk.net/caspervk/wau"
import sys
assert sys.version_info >= (3, 7), "wau requires python 3.7 or later."

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if __name__ == "__main__":
from .cli import main
main()

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from __future__ import annotations
import json
import logging
import re
import shutil
from dataclasses import dataclass, field
from pathlib import Path
from typing import Iterable, List
from . import config, providers
logger = logging.getLogger(__name__)
@dataclass
class Addon:
name: str = None
url: str = None
dirs: List[Path] = field(default_factory=list)
provider: str = None
provider_data: dict = field(default_factory=dict)
@property
def to_json(self) -> dict:
return {
"name": self.name,
"url": self.url,
"dirs": [str(d) for d in self.dirs],
"provider": self.provider,
"provider_data": self.provider_data
}
@classmethod
def from_json(cls, data) -> Addon:
return cls(
name=data["name"],
url=data["url"],
dirs=[Path(d) for d in data["dirs"]],
provider=data["provider"],
provider_data=data["provider_data"]
)
@property
def download_dir(self) -> Path:
return config.CACHE_DIR.joinpath(get_valid_dir_filename(self.url))
def create_download_dir(self, recreate=False):
if recreate:
shutil.rmtree(self.download_dir, ignore_errors=True)
self.download_dir.mkdir(parents=True, exist_ok=True)
def is_cached(self) -> bool:
return self.dirs and all(d.is_dir() for d in self.dirs)
def get_provider(self) -> providers.Provider:
if self.provider is not None:
return providers.PROVIDERS[self.provider]
for provider_name, provider in providers.PROVIDERS.items():
if provider.is_supported(self.url):
self.provider = provider_name
logger.debug("%s is supported by %s", self, provider.__name__)
return provider
raise ValueError(f"No AddOn provider for {self}")
def download(self) -> bool:
logger.info("Downloading %s", self.url)
self.create_download_dir()
provider = self.get_provider()
changed = provider.download(self)
return changed
def install(self) -> None:
logger.info("Installing %s", self)
self.dirs = find_addon_dirs(self.download_dir)
for dir in self.dirs:
shutil.copytree(str(dir), config.ADDONS_DIR.joinpath(dir.name))
if self.name is None: # didn't get AddOn name from provider
if len(self.dirs) == 1:
self.name = self.dirs[0].name
else:
print(f"Please enter AddOn name for {self.url}:")
self.name = input()
def uninstall(self) -> None:
logger.info("Uninstalling %s", self)
shutil.rmtree(self.download_dir, ignore_errors=True)
for dir in self.dirs:
shutil.rmtree(config.ADDONS_DIR.joinpath(dir.name))
def find_addon_dirs(path: Path) -> List[Path]:
"""
Find and return AddOns in the given path.
Each WoW AddOn is identified by a .toc-file whose filename matches its containing folder. The algorithm traverses
the path in a breadth-first fashion, returning all found AddOns in the first level which contains any AddOns.
This ensures we find AddOns 'Foo' and 'Foo_Config'.
"""
level = [path]
while level:
addon_dirs = []
for p in level:
if any(toc.stem == p.name for toc in p.glob("*.toc")):
addon_dirs.append(p)
if addon_dirs:
logger.debug("Found AddOn dirs: %s in '%s'", addon_dirs, path)
return addon_dirs
level = [c
for p in level
for c in p.iterdir()
if c.is_dir()]
raise FileNotFoundError(f"No AddOn dirs found in {path}")
def get_valid_dir_filename(s: str) -> str:
"""
From https://github.com/django/django/blob/master/django/utils/text.py
"""
s = str(s).strip().replace(" ", "_")
return re.sub(r"(?u)[^-\w.]", "", s)
def load_installed_addons() -> List[Addon]:
logger.debug("Loading list of installed AddOns from %s", config.CONFIG_FILE)
try:
with config.CONFIG_FILE.open() as cf:
return [Addon.from_json(a) for a in json.load(cf)["installed_addons"]]
except FileNotFoundError:
return []
def save_installed_addons(addons: Iterable[Addon]) -> None:
logger.debug("Saving list of installed AddOns to %s", config.CONFIG_FILE)
with config.CONFIG_FILE.open("w") as cf:
json.dump(dict(installed_addons=[a.to_json for a in addons]), cf)

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import argparse
import logging
import logging.config
import shutil
import textwrap
from . import __url__, __author__, __version__, config, providers, addons
from .addons import Addon
logger = logging.getLogger(__name__)
class CLI:
def __init__(self) -> None:
self.validate_addons_dir()
self.installed_addons = addons.load_installed_addons()
def validate_addons_dir(self) -> None:
if not config.ADDONS_DIR.joinpath("../../Wow.exe").is_file():
a = input("Error: The application must be run from the Interface/AddOns directory. Continue anyway [y/N]? ")
if a.lower() != "y":
exit()
def parse_args(self):
parser = argparse.ArgumentParser(
prog="wau",
description=f"World of Warcraft AddOn Updater v{__version__} by {__author__}.",
epilog=f"For more information, see <{__url__}>."
)
parser.set_defaults(func=lambda a: parser.print_help())
parser.add_argument(
"-v", "--verbose",
action="count",
default=0,
help="Increase verbosity level. Can be used multiple times."
)
subparsers = parser.add_subparsers()
install_parser = subparsers.add_parser(
name="install",
help="Install a new AddOn."
)
install_parser.set_defaults(func=self.install)
install_parser.add_argument(
dest="urls",
nargs='+',
help="URL of AddOn(s).",
)
remove_parser = subparsers.add_parser(
name="remove",
help="Remove a previously installed AddOn."
)
remove_parser.set_defaults(func=self.remove)
remove_parser.add_argument(
dest="addons",
nargs='*',
help="URL or name of AddOn(s).",
)
remove_parser.add_argument(
"--all",
action="store_true",
help="Remove all AddOns.")
update_parser = subparsers.add_parser(
name="update",
help="Install newest version of all AddOns."
)
update_parser.set_defaults(func=self.update)
list_parser = subparsers.add_parser(
name="list",
help="List installed AddOn.",
)
list_parser.set_defaults(func=self.list)
clean_parser = subparsers.add_parser(
name="clean",
help="Clear out the local cache of retrieved files."
)
clean_parser.set_defaults(func=self.clean)
export_parser = subparsers.add_parser(
name="export",
help="Export the list of installed AddOns for install elsewhere."
)
export_parser.set_defaults(func=self.export)
return parser.parse_args()
def run(self):
args = self.parse_args()
logging.config.dictConfig(config.get_logging_config(level=("WARNING", "INFO", "DEBUG")[min(args.verbose, 2)]))
logger.debug("Args: %s", args)
args.func(args)
def install(self, args) -> None:
already_installed_urls = {a.url for a in self.installed_addons}
for url in set(args.urls): # set removes duplicates
if url in already_installed_urls:
print(f"{url} is already installed")
continue
print(f"Installing AddOn from {url}")
addon = Addon(url=url)
addon.download()
addon.install()
self.installed_addons.append(addon)
addons.save_installed_addons(self.installed_addons)
def remove(self, args) -> None:
if args.all:
remove = self.installed_addons.copy()
else:
remove = [addon
for addon in self.installed_addons
if addon.name in args.addons]
for addon in remove:
print(f"Removing {addon.name}")
addon.uninstall()
self.installed_addons.remove(addon)
addons.save_installed_addons(self.installed_addons)
def update(self, args) -> None:
for addon in self.installed_addons:
print(f"Updating {addon.name}..", end=" ")
changed = addon.download()
if changed:
addon.uninstall()
addon.install()
print("Done" if changed else "Already up to date")
addons.save_installed_addons(self.installed_addons)
def list(self, args) -> None:
table = []
for addon in self.installed_addons:
table.append({
"Name": addon.name,
"Provider": addon.get_provider().__name__,
"URL": addon.url,
"Directories": textwrap.fill(", ".join(d.name for d in addon.dirs), width=40)
})
from tabulate import tabulate
print(tabulate(table, headers="keys", tablefmt="orgtbl"))
def clean(self, args) -> None:
shutil.rmtree(config.CACHE_DIR, ignore_errors=True)
def export(self, args) -> None:
print(" ".join(a.url for a in self.installed_addons))
def main():
cli = CLI()
cli.run()
if __name__ == '__main__':
main()

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import logging
from pathlib import Path
logger = logging.getLogger(__name__)
CONFIG_FILE = Path(".wau.json")
ADDONS_DIR = Path.cwd() # for now. Maybe change to reading a config file or something in the future
CACHE_DIR = Path(".wau-cache")
def get_logging_config(level="WARNING") -> dict:
return {
"version": 1,
"disable_existing_loggers": False,
"formatters": {
"standard": {
"format": "%(asctime)s [%(levelname)-7s] %(name)s:%(funcName)s - %(message)s"
}
},
"handlers": {
"console": {
"class": "logging.StreamHandler",
"stream": "ext://sys.stdout",
"formatter": "standard",
"level": level,
}
},
"loggers": {
"wau": {
"level": "DEBUG",
"handlers": ["console"]
}
},
}

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import json
import logging
import shutil
import tempfile
import urllib.parse
import urllib.request
import zipfile
from functools import lru_cache
from http.client import HTTPResponse
from pathlib import Path
from typing import Mapping
from urllib.request import Request
logger = logging.getLogger(__name__)
HTTP_USER_AGENT = "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Firefox/68.0"
HTTP_TIMEOUT = 3
class Response:
def __init__(self, http_response: HTTPResponse) -> None:
self.http_response = http_response
@property
@lru_cache()
def bytes(self) -> bytes:
logger.debug("GET %s", self.http_response.geturl())
return self.http_response.read()
@property
@lru_cache()
def text(self) -> str:
return self.bytes.decode() # TODO: Detect encoding
@lru_cache()
def head(self) -> dict:
logger.debug("HEAD %s", self.http_response.geturl())
return dict(self.http_response.info())
@lru_cache()
def json(self) -> dict:
return json.loads(self.bytes)
def open(url: str, params: Mapping = None) -> Response:
if params is not None:
url += "?" + urllib.parse.urlencode(params)
request = Request(url)
request.add_header("User-Agent", HTTP_USER_AGENT)
http_response = urllib.request.urlopen(request, timeout=HTTP_TIMEOUT)
return Response(http_response)
def download_zip(url: str, dest: Path) -> None:
logger.debug("Downloading '%s' to %s", url, dest)
with tempfile.TemporaryFile() as tmp:
with urllib.request.urlopen(url) as response:
shutil.copyfileobj(response, tmp)
with zipfile.ZipFile(tmp) as zip:
zip.extractall(path=dest)

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from .base import Provider
from .curseforge import CurseForge
from .git import Git
#from .github import GitHub
from .web import Web
from .wowinterface import WowInterface
PROVIDERS = { # in order of preference
"curse": CurseForge,
"wowinterface": WowInterface,
#"github": GitHub,
"git": Git,
"web": Web
}

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from ..addons import Addon
class Provider:
@classmethod
def is_supported(cls, url: str) -> bool:
"""
Returns True if the given URL is supported by this provider.
"""
raise NotImplemented
@classmethod
def download(cls, addon: Addon) -> bool:
"""
Download the provided AddOn.
Returns True if the AddOn data was changed (i.e. downloaded/updated), False otherwise.
"""
raise NotImplemented

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import logging
from .base import Provider
from .. import http
from ..addons import Addon
logger = logging.getLogger(__name__)
class CurseForge(Provider):
api_url = "https://addons-ecs.forgesvc.net"
@classmethod
def is_supported(cls, url: str) -> bool:
return "curseforge.com/wow/addons/" in url
@classmethod
def download(cls, addon: Addon) -> bool:
"""
Twitch API from: https://github.com/Gaz492/TwitchAPI. Thanks Gareth! <3
"""
latest_file_url = cls._get_latest_file_url(addon)
try:
if addon.is_cached() and latest_file_url == addon.provider_data["file_url"]:
return False
except KeyError:
pass
addon.create_download_dir(recreate=True) # clean download dir
http.download_zip(latest_file_url, addon.download_dir)
addon.provider_data["file_url"] = latest_file_url
return True
@classmethod
def _get_curse_id(cls, addon: Addon) -> int:
try:
return addon.provider_data["curse_id"]
except KeyError:
pass
logger.debug("Getting CurseForge AddOn ID")
slug = addon.url.split("/addons/")[-1]
query = " ".join(( # slug "big-wigs" becomes query "big-wigs bigwigs big wigs"
slug,
slug.replace("-", ""),
slug.replace("-", " ")
))
addons = http.open(
url=f"{cls.api_url}/api/v2/addon/search",
params={
"gameId": 1, # World of Warcraft
"pageSize": 10,
"searchFilter": query
}
).json()
for a in addons:
if a["slug"] == slug:
addon.provider_data["curse_id"] = a["id"]
addon.name = a["name"]
return a["id"]
raise ValueError("AddOn slug not found in CurseForge search results.")
@classmethod
def _get_curse_addon_info(cls, addon: Addon) -> dict:
curse_id = cls._get_curse_id(addon)
logger.debug("Getting latest AddOn info from CurseForge")
return http.open(f"{cls.api_url}/api/v2/addon/{curse_id}").json()
@classmethod
def _get_latest_file_url(cls, addon: Addon) -> str:
info = cls._get_curse_addon_info(addon)
for file in info["latestFiles"]:
if file["gameVersionFlavor"] == "wow_classic" and file["releaseType"] == 1: # 1: release, 2: beta, 3: alpha
return file["downloadUrl"]
raise ValueError("No file found")

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import logging
import subprocess
from pathlib import Path
from .base import Provider
from ..addons import Addon
logger = logging.getLogger(__name__)
class Git(Provider):
@classmethod
def is_supported(cls, url: str) -> bool:
logger.debug("Performing 'git ls-remote' on %s", url)
try:
subprocess.run(
["git", "ls-remote", "-h", "--exit-code", url],
stdout=subprocess.DEVNULL,
stderr=subprocess.DEVNULL,
timeout=3,
check=True
)
return True
except subprocess.CalledProcessError:
return False
@classmethod
def download(cls, addon: Addon) -> bool:
if addon.is_cached():
return cls._pull(addon)
cls._clone(addon)
return True
@classmethod
def _clone(cls, addon: Addon) -> None:
logger.debug("Git clone %s", addon.url)
subprocess.call(
["git", "clone",
*addon.url.replace("#", " -b ").split(), # allows for '<repo>#<branch>' syntax
"--depth", "1",
"--single-branch",
"--quiet"],
cwd=str(addon.download_dir)
)
addon.name = next(x for x in addon.download_dir.iterdir() if x.is_dir()).name
@classmethod
def _pull(cls, addon: Addon) -> bool:
logger.debug("Git pull %s", addon)
head = cls._head(addon.dirs[0]) # git doesn't care which AddOn dir, as long as we're in the repo
subprocess.run(
["git", "pull", "--quiet"],
cwd=str(addon.dirs[0])
)
return head != cls._head(addon.dirs[0])
@classmethod
def _head(cls, path: Path) -> bytes:
p = subprocess.run(
["git", "rev-parse", "HEAD"],
capture_output=True,
cwd=str(path)
)
return p.stdout

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import re
from ..addons import Addon
class Provider:
@classmethod
def is_supported(cls, url: str) -> bool:
return bool(re.search("github.com/.*/.*/releases", url, flags=re.IGNORECASE))
@classmethod
def download(cls, addon: Addon) -> bool:
raise NotImplemented

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import logging
import urllib.error
import urllib.request
from .base import Provider
from .. import http
from ..addons import Addon
logger = logging.getLogger(__name__)
class Web(Provider):
user_agent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Firefox/68.0"
@classmethod
def is_supported(cls, url: str) -> bool:
try:
http.open(url).head()
return True
except (urllib.error.HTTPError, urllib.error.URLError) as e:
logger.debug(e)
return False
@classmethod
def download(cls, addon: Addon, url: str = None) -> bool:
url = url or addon.url
head = http.open(url).head()
try:
if addon.is_cached() and head["Last-Modified"] == addon.provider_data["Last-Modified"]:
return False
except KeyError:
pass
addon.create_download_dir(recreate=True) # clean download dir
http.download_zip(url, addon.download_dir)
addon.provider_data["Last-Modified"] = head.get("Last-Modified")
return True

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import re
from .web import Web
from ..addons import Addon
class WowInterface(Web):
@classmethod
def is_supported(cls, url: str) -> bool:
return "wowinterface.com/downloads/info" in url
@classmethod
def download(cls, addon: Addon, url: str = None) -> bool:
addon_id, addon_name = re.search(r"info(\d+)-?(.*)", addon.url).groups()
if addon_name:
addon.name = addon_name.replace(".html", "")
return super().download(addon, url=f"https://cdn.wowinterface.com/downloads/file{addon_id}/")