kopia lustrzana https://github.com/snarfed/bridgy-fed
38 wiersze
1.2 KiB
Python
38 wiersze
1.2 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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import flask
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from flask import request
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import requests
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from app import app, cache
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import common
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from common import error
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LINK_HEADER = '<%s>; rel="webmention"'
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CACHE_TIME = datetime.timedelta(seconds=15)
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@app.get(r'/wm/<path:url>')
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@cache.cached(timeout=CACHE_TIME.total_seconds(), query_string=True,
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response_filter=common.not_5xx)
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def add_wm(url=None):
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"""Proxies HTTP requests and adds Link header to our webmention endpoint."""
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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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return error('URL must start with http:// or https://')
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try:
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got = common.requests_get(url)
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except requests.exceptions.Timeout as e:
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return error(str(e), status=504, exc_info=True)
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except requests.exceptions.RequestException as e:
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return error(str(e), status=502, exc_info=True)
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resp = flask.make_response(got.content, got.status_code, dict(got.headers))
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resp.headers.add('Link', LINK_HEADER % (request.args.get('endpoint') or
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request.host_url + 'webmention'))
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return resp
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