Properly fix redirecting streaming endpoints.

Fixes #84
This commit is contained in:
Elizabeth Myers 2017-09-25 18:01:41 -05:00
pare 6ab283d17e
commit 9ec0655365

Veure arxiu

@ -16,6 +16,7 @@ import dateutil.parser
import re
import copy
import threading
from urllib.parse import urlparse
class Mastodon:
@ -1158,40 +1159,22 @@ class Mastodon:
wish to terminate it.
"""
headers = {}
if self.access_token is not None:
headers = {'Authorization': 'Bearer ' + self.access_token}
url = self.api_base_url + endpoint
# Check if we have to redirect
instance = self.instance()
if "streaming_api" in instance["urls"] and instance["urls"]["streaming_api"] != self.api_base_url:
# This is probably a websockets URL, which is really for the browser, but requests can't handle it
# So we do this below to turn it into an HTTPS URL
parse = urlparse(instance["urls"]["streaming_api"])
url = "https://" + parse.netloc
else:
url = self.api_base_url
# requests session subclass to disable stripping authorization headers
class __no_auth_strip_session(requests.Session):
def rebuild_auth(self, prepared_request, response):
return
# The streaming server can't handle two slashes in a path, so remove trailing slashes
if url[-1] == '/':
url = url[:-1]
# Mastodon can be configured to use another address for streaming.
# However, due to a bug, Mastodon does not issue 301 Permanently
# Moved redirects for anything but /api/v1/streaming (including
# subdirs), instead returning a 404 with no redirect and causing the
# entire request to fail.
#
# The workaround is to hit /api/v1/streaming and see if there is a
# redirection, and then use the domain it gives us to do the final
# request.
if endpoint.startswith("/api/v1/streaming"):
stream_base = self.api_base_url + "/api/v1/streaming"
with __no_auth_strip_session() as session:
connection = session.get(stream_base, headers = headers, data = params)
if connection.status_code not in (404, 200):
# 404 is a normal error, raise on anything else
raise MastodonNetworkError("Could not connect to streaming server: %s" % connection.reason)
url = connection.url.replace("/api/v1/streaming", endpoint)
with __no_auth_strip_session() as session:
# Prevent stripping of authorisation headers on redirect
connection = session.get(url, headers = headers, data = params, stream = True)
headers = {"Authorization": "Bearer " + self.access_token}
connection = requests.get(url + endpoint, headers = headers, data = params, stream = True)
if connection.status_code != 200:
raise MastodonNetworkError("Could not connect to streaming server: %s" % connection.reason)