mirror of https://github.com/hunshcn/gh-proxy
177 lines
6.9 KiB
Python
177 lines
6.9 KiB
Python
# -*- coding: utf-8 -*-
|
||
import re
|
||
|
||
import requests
|
||
from flask import Flask, Response, redirect, request
|
||
from requests.exceptions import (
|
||
ChunkedEncodingError,
|
||
ContentDecodingError, ConnectionError, StreamConsumedError)
|
||
from requests.utils import (
|
||
stream_decode_response_unicode, iter_slices, CaseInsensitiveDict)
|
||
from urllib3.exceptions import (
|
||
DecodeError, ReadTimeoutError, ProtocolError)
|
||
|
||
# config
|
||
# git使用cnpmjs镜像、分支文件使用jsDelivr镜像的开关，0为关闭，默认关闭
|
||
jsdelivr = 0
|
||
cnpmjs = 0
|
||
size_limit = 1024 * 1024 * 1024 * 999 # 允许的文件大小，默认999GB，相当于无限制了 https://github.com/hunshcn/gh-proxy/issues/8
|
||
|
||
"""
|
||
先生效白名单再匹配黑名单，pass_list匹配到的会直接302到jsdelivr/cnpmjs而忽略设置
|
||
生效顺序 白->黑->pass，可以前往https://github.com/hunshcn/gh-proxy/issues/41 查看示例
|
||
每个规则一行，可以封禁某个用户的所有仓库，也可以封禁某个用户的特定仓库，下方用黑名单示例，白名单同理
|
||
user1 # 封禁user1的所有仓库
|
||
user1/repo1 # 封禁user1的repo1
|
||
*/repo1 # 封禁所有叫做repo1的仓库
|
||
"""
|
||
white_list = '''
|
||
'''
|
||
black_list = '''
|
||
'''
|
||
pass_list = '''
|
||
'''
|
||
|
||
HOST = '127.0.0.1' # 监听地址，建议监听本地然后由web服务器反代
|
||
PORT = 80 # 监听端口
|
||
ASSET_URL = 'https://hunshcn.github.io/gh-proxy' # 主页
|
||
|
||
white_list = [tuple([x.replace(' ', '') for x in i.split('/')]) for i in white_list.split('\n') if i]
|
||
black_list = [tuple([x.replace(' ', '') for x in i.split('/')]) for i in black_list.split('\n') if i]
|
||
app = Flask(__name__)
|
||
CHUNK_SIZE = 1024 * 10
|
||
index_html = requests.get(ASSET_URL, timeout=10).text
|
||
icon_r = requests.get(ASSET_URL + '/favicon.ico', timeout=10).content
|
||
exp1 = re.compile(r'^(?:https?://)?github\.com/(?P<author>.+?)/(?P<repo>.+?)/(?:releases|archive|suites)/.*$')
|
||
exp2 = re.compile(r'^(?:https?://)?github\.com/(?P<author>.+?)/(?P<repo>.+?)/(?:blob|raw)/.*$')
|
||
exp3 = re.compile(r'^(?:https?://)?github\.com/(?P<author>.+?)/(?P<repo>.+?)/(?:info|git-).*$')
|
||
exp4 = re.compile(r'^(?:https?://)?raw\.(?:githubusercontent|github)\.com/(?P<author>.+?)/(?P<repo>.+?)/.+?/.+$')
|
||
exp5 = re.compile(r'^(?:https?://)?gist\.(?:githubusercontent|github)\.com/(?P<author>.+?)/.+?/.+$')
|
||
|
||
requests.sessions.default_headers = lambda: CaseInsensitiveDict()
|
||
|
||
|
||
@app.route('/')
|
||
def index():
|
||
if 'q' in request.args:
|
||
return redirect('/' + request.args.get('q'))
|
||
return index_html
|
||
|
||
|
||
@app.route('/favicon.ico')
|
||
def icon():
|
||
return Response(icon_r, content_type='image/vnd.microsoft.icon')
|
||
|
||
|
||
def iter_content(self, chunk_size=1, decode_unicode=False):
|
||
"""rewrite requests function, set decode_content with False"""
|
||
|
||
def generate():
|
||
# Special case for urllib3.
|
||
if hasattr(self.raw, 'stream'):
|
||
try:
|
||
for chunk in self.raw.stream(chunk_size, decode_content=False):
|
||
yield chunk
|
||
except ProtocolError as e:
|
||
raise ChunkedEncodingError(e)
|
||
except DecodeError as e:
|
||
raise ContentDecodingError(e)
|
||
except ReadTimeoutError as e:
|
||
raise ConnectionError(e)
|
||
else:
|
||
# Standard file-like object.
|
||
while True:
|
||
chunk = self.raw.read(chunk_size)
|
||
if not chunk:
|
||
break
|
||
yield chunk
|
||
|
||
self._content_consumed = True
|
||
|
||
if self._content_consumed and isinstance(self._content, bool):
|
||
raise StreamConsumedError()
|
||
elif chunk_size is not None and not isinstance(chunk_size, int):
|
||
raise TypeError("chunk_size must be an int, it is instead a %s." % type(chunk_size))
|
||
# simulate reading small chunks of the content
|
||
reused_chunks = iter_slices(self._content, chunk_size)
|
||
|
||
stream_chunks = generate()
|
||
|
||
chunks = reused_chunks if self._content_consumed else stream_chunks
|
||
|
||
if decode_unicode:
|
||
chunks = stream_decode_response_unicode(chunks, self)
|
||
|
||
return chunks
|
||
|
||
|
||
@app.route('/<path:u>', methods=['GET', 'POST'])
|
||
def proxy(u):
|
||
u = u if u.startswith('http') else 'https://' + u
|
||
if u.rfind('://', 3, 9) == -1:
|
||
u = u.replace('s:/', 's://', 1) # uwsgi会将//传递为/
|
||
pass_by = False
|
||
for exp in (exp1, exp2, exp3, exp4, exp5):
|
||
m = exp.match(u)
|
||
if m:
|
||
m = tuple(m.groups())
|
||
if white_list:
|
||
for i in white_list:
|
||
if m[:len(i)] == i or i[0] == '*' and len(m) == 2 and m[1] == i[1]:
|
||
break
|
||
else:
|
||
return Response('Forbidden by white list.', status=403)
|
||
for i in black_list:
|
||
if m[:len(i)] == i or i[0] == '*' and len(m) == 2 and m[1] == i[1]:
|
||
return Response('Forbidden by black list.', status=403)
|
||
for i in pass_list:
|
||
if m[:len(i)] == i or i[0] == '*' and len(m) == 2 and m[1] == i[1]:
|
||
pass_by = True
|
||
break
|
||
break
|
||
else:
|
||
return Response('Invalid input.', status=403)
|
||
|
||
if (jsdelivr or pass_by) and exp2.match(u):
|
||
u = u.replace('/blob/', '@', 1).replace('github.com', 'cdn.jsdelivr.net/gh', 1)
|
||
return redirect(u)
|
||
elif (cnpmjs or pass_by) and exp3.match(u):
|
||
u = u.replace('github.com', 'github.com.cnpmjs.org', 1) + request.url.replace(request.base_url, '', 1)
|
||
return redirect(u)
|
||
elif (jsdelivr or pass_by) and exp4.match(u):
|
||
u = re.sub(r'(\.com/.*?/.+?)/(.+?/)', r'\1@\2', u, 1)
|
||
u = u.replace('raw.githubusercontent.com', 'cdn.jsdelivr.net/gh', 1)
|
||
return redirect(u)
|
||
else:
|
||
if exp2.match(u):
|
||
u = u.replace('/blob/', '/raw/', 1)
|
||
headers = {}
|
||
r_headers = dict(request.headers)
|
||
if 'Host' in r_headers:
|
||
r_headers.pop('Host')
|
||
try:
|
||
url = u + request.url.replace(request.base_url, '', 1)
|
||
if url.startswith('https:/') and not url.startswith('https://'):
|
||
url = 'https://' + url[7:]
|
||
r = requests.request(method=request.method, url=url, data=request.data, headers=r_headers, stream=True)
|
||
headers = dict(r.headers)
|
||
|
||
if 'Content-length' in r.headers and int(r.headers['Content-length']) > size_limit:
|
||
return redirect(u + request.url.replace(request.base_url, '', 1))
|
||
|
||
def generate():
|
||
for chunk in iter_content(r, chunk_size=CHUNK_SIZE):
|
||
yield chunk
|
||
|
||
return Response(generate(), headers=headers, status=r.status_code)
|
||
except Exception as e:
|
||
headers['content-type'] = 'text/html; charset=UTF-8'
|
||
return Response('server error ' + str(e), status=500, headers=headers)
|
||
# else:
|
||
# return Response('Illegal input', status=403, mimetype='text/html; charset=UTF-8')
|
||
|
||
|
||
app.debug = True
|
||
if __name__ == '__main__':
|
||
app.run(host=HOST, port=PORT)
|