kopia lustrzana https://github.com/snarfed/bridgy-fed
46 wiersze
1.3 KiB
Python
46 wiersze
1.3 KiB
Python
"""HTTP proxy that injects our webmention endpoint.
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"""
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import datetime
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import urllib.parse
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from oauth_dropins.webutil.handlers import cache_response
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import requests
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import webapp2
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import common
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LINK_HEADER = '<%s>; rel="webmention"'
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CACHE_TIME = datetime.timedelta(seconds=15)
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class AddWebmentionHandler(common.Handler):
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"""Proxies HTTP requests and adds Link header to our webmention endpoint."""
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@cache_response(CACHE_TIME)
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def get(self, url):
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url = urllib.parse.unquote(url)
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if not url.startswith('http://') and not url.startswith('https://'):
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self.error('URL must start with http:// or https://')
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try:
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resp = common.requests_get(url)
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except requests.exceptions.Timeout as e:
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self.error(str(e), status=504, exc_info=True)
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except requests.exceptions.RequestException as e:
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self.error(str(e), status=502, exc_info=True)
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self.response.status_int = resp.status_code
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self.response.write(resp.content)
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endpoint = LINK_HEADER % (str(self.request.get('endpoint')) or
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self.request.host_url + '/webmention')
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self.response.headers.clear()
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self.response.headers.update(resp.headers)
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self.response.headers.add('Link', endpoint)
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ROUTES = [
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('/wm/(.+)', AddWebmentionHandler),
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]
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