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118 lines
4 KiB
Python
118 lines
4 KiB
Python
# preset_downloader.py
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#
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# Change the look of Adwaita, with ease
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# Copyright (C) 2022 Gradience Team
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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import os
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import json
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from gi.repository import GLib, Soup
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from gradience.backend.globals import presets_dir
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from gradience.backend.utils.common import to_slug_case
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from gradience.backend.logger import Logger
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logging = Logger()
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class PresetDownloader:
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def __init__(self, use_jsdeliver=False):
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self.use_jsdeliver = use_jsdeliver
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# Open Soup3 session
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self.session = Soup.Session()
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def fetch_presets(self, repo) -> [dict, list]:
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try:
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request = Soup.Message.new("GET", repo)
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body = self.session.send_and_read(request, None)
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except GLib.GError as e:
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if e.code == 1: # offline
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logging.error("Failed to establish a new connection.", exc=e)
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raise
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else:
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logging.error(f"Unhandled Libsoup3 GLib.GError error code {e.code}.", exc=e)
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raise
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try:
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raw = json.loads(body.get_data())
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except json.JSONDecodeError as e:
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logging.error("Error while decoding JSON data.", exc=e)
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raise
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preset_dict = {}
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url_list = []
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for data in raw.items():
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data = list(data)
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data.insert(0, to_slug_case(data[0]))
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url = data[2]
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data.pop(2) # Remove preset URL from list
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to_dict = iter(data)
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# Convert list back to dict
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preset_dict.update(dict(zip(to_dict, to_dict)))
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if self.use_jsdeliver:
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if "https://github.com" in url:
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# https://github.com/GradienceTeam/Community/raw/next/official/builder.json =>
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# https://cdn.jsdelivr.net/gh/GradienceTeam/Community@next/official/builder.json
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JSDELIVER_FORMAT = "https://cdn.jsdelivr.net/gh/{user}/{repo}@{branch}/{path}"
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url = url[18:] # remove https://github.com (len 18)
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user, repo, _, branch, *path = url.split("/")
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path = "/".join(path)
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url = JSDELIVER_FORMAT.format(user, repo, branch, path)
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print(url)
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url_list.append(url)
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return preset_dict, url_list
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def download_preset(self, name, repo_name, repo) -> None:
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try:
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request = Soup.Message.new("GET", repo)
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body = self.session.send_and_read(request, None)
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except GLib.GError as e:
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if e.code == 1: # offline
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logging.error("Failed to establish a new connection.", exc=e)
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raise
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else:
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logging.error(f"Unhandled Libsoup3 GLib.GError error code {e.code}.", exc=e)
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raise
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try:
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raw = json.loads(body.get_data())
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except json.JSONDecodeError as e:
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logging.error("Error while decoding JSON data.", exc=e)
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raise
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data = json.dumps(raw, indent=4)
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try:
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with open(
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os.path.join(
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presets_dir,
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repo_name,
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to_slug_case(name) + ".json",
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),
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"w",
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encoding="utf-8",
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) as f:
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f.write(data)
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f.close()
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except OSError as e:
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logging.error("Failed to write data to a file.", exc=e)
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raise
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