Multi-threaded download with aria2

Close #24

scripts/generateGappsLink.py

@@ -0,0 +1,62 @@
+# 
+# This file is part of MagiskOnWSALocal.
+#
+# MagiskOnWSALocal is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# MagiskOnWSALocal 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with MagiskOnWSALocal.  If not, see <https://www.gnu.org/licenses/>.
+#
+# Copyright (C) 2022 LSPosed Contributors
+#
+
+#!/usr/bin/python
+
+import sys
+
+import requests
+import os
+import json
+import re
+from pathlib import Path
+
+arch = sys.argv[1]
+variant = sys.argv[2]
+download_dir = Path.cwd().parent / "download" if sys.argv[3] == "" else Path(sys.argv[3]).resolve()
+tempScript = sys.argv[4]
+print(f"Generating OpenGapps download link: arch={arch} variant={variant}", flush=True)
+abi_map = {"x64": "x86_64", "arm64": "arm64"}
+# TODO: keep it 11.0 since opengapps does not support 12+ yet
+# As soon as opengapps is available for 12+, we need to get the sdk/release from build.prop and
+# download the corresponding version
+release = "11.0"
+try:
+    res = requests.get(f"https://api.opengapps.org/list")
+    j = json.loads(res.content)
+    link = {i["name"]: i for i in j["archs"][abi_map[arch]]
+            ["apis"][release]["variants"]}[variant]["zip"]
+except Exception:
+    print("Failed to fetch from opengapps api, fallbacking to sourceforge rss...")
+    res = requests.get(
+        f'https://sourceforge.net/projects/opengapps/rss?path=/{abi_map[arch]}&limit=100')
+    link = re.search(f'https://.*{abi_map[arch]}/.*{release}.*{variant}.*\.zip/download', res.text).group().replace(
+        '.zip/download', '.zip').replace('sourceforge.net/projects/opengapps/files', 'downloads.sourceforge.net/project/opengapps')
+
+print(f"download link: {link}", flush=True)
+
+out_file = download_dir / "gapps.zip"
+
+if not os.path.isfile(out_file):
+    # urllib.request.urlretrieve(link, out_file)
+    with open(download_dir/tempScript, 'a') as f:
+        f.writelines(f'{link}\n')
+        f.writelines(f'  dir={download_dir}\n')
+        f.writelines(f'  out=gapps.zip\n')
+        f.close