#!/usr/bin/env python3
"""
browser proxy for dashd - strips X-Frame-Options to allow embedding any page
runs on port 8088
usage: /proxy?url=https://example.com
"""
from http.server import HTTPServer, BaseHTTPRequestHandler
from urllib.parse import urlparse, parse_qs
import urllib.request
import urllib.error
import ssl
import re
class ProxyHandler(BaseHTTPRequestHandler):
def do_GET(self):
if not self.path.startswith('/proxy'):
self.send_error(404, 'use /proxy?url=...')
return
parsed = urlparse(self.path)
params = parse_qs(parsed.query)
if 'url' not in params:
self.send_error(400, 'missing url parameter')
return
target_url = params['url'][0]
try:
ctx = ssl.create_default_context()
ctx.check_hostname = False
ctx.verify_mode = ssl.CERT_NONE
req = urllib.request.Request(target_url, headers={
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36'
})
with urllib.request.urlopen(req, context=ctx, timeout=10) as response:
content_type = response.headers.get('Content-Type', 'text/html')
body = response.read()
if 'text/html' in content_type:
body_str = body.decode('utf-8', errors='replace')
base_tag = ''
if '' in body_str.lower():
body_str = re.sub(r'(]*>)', r'\1' + base_tag, body_str, count=1, flags=re.IGNORECASE)
elif '' in body_str.lower():
body_str = re.sub(r'(]*>)', r'\1' + base_tag + '', body_str, count=1, flags=re.IGNORECASE)
body = body_str.encode('utf-8')
self.send_response(200)
self.send_header('Content-Type', content_type)
self.send_header('Access-Control-Allow-Origin', '*')
self.send_header('Content-Length', len(body))
self.end_headers()
self.wfile.write(body)
except urllib.error.HTTPError as e:
self.send_error(e.code, str(e.reason))
except Exception as e:
self.send_error(500, str(e))
def log_message(self, format, *args):
pass
if __name__ == '__main__':
port = 8088
server = HTTPServer(('0.0.0.0', port), ProxyHandler)
print(f'browser proxy running on port {port}')
server.serve_forever()