from flask import Flask, request, Response
import requests
import re
app = Flask(__name__)
# 首页
@app.route('/')
def home():
return '''
🌐 国外网站代理访问
🌐 Github / 国外网站加速代理
'''
# 统一替换 html 内资源链接与表单 action
def replace_all_resources(html, target_url):
def replace_match(match):
attr, url = match.group(1), match.group(2)
if url.startswith('http'):
proxied_url = f"/proxy?url={url}"
elif url.startswith('//'):
proxied_url = f"/proxy?url=https:{url}"
elif url.startswith('/'):
base = re.match(r'(https?://[^/]+)', target_url).group(1)
proxied_url = f"/proxy?url={base}{url}"
else:
base = target_url.rsplit('/', 1)[0]
proxied_url = f"/proxy?url={base}/{url}"
return f'{attr}="{proxied_url}"'
# 替换 src / href / action
html = re.sub(r'(src|href|action)=["\'](.*?)["\']', replace_match, html, flags=re.IGNORECASE)
# 给所有表单加隐藏 input 保留 url 参数
html = re.sub(
r'(]*>)',
lambda m: f'{m.group(1)}',
html,
flags=re.IGNORECASE
)
return html
# 代理接口
@app.route('/proxy')
def proxy():
target_url = request.args.get('url')
if not target_url:
return '❌ 缺少 url 参数'
# 自动补全 https://
if not target_url.startswith(('http://', 'https://')):
target_url = 'https://' + target_url
try:
headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64)'}
resp = requests.get(target_url, headers=headers, timeout=8)
content_type = resp.headers.get('Content-Type', '')
# 如果是 HTML 页面
if 'text/html' in content_type:
html = resp.text
# 替换资源和表单 action
html = replace_all_resources(html, target_url)
return Response(html, resp.status_code, content_type=content_type)
else:
# 其他类型直接转发
return Response(resp.content, resp.status_code, content_type=content_type)
except requests.exceptions.RequestException as e:
return f'❌ 网络异常: {e}'
except Exception as e:
return f'❌ 系统错误: {e}'
# 启动服务
if __name__ == '__main__':
app.run(host='0.0.0.0', port=8203)