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This commit is contained in:
Matthew Hodgson 2016-04-08 18:58:08 +01:00
parent fb83f6a1fc
commit 1ccabe2965
1 changed files with 8 additions and 4 deletions
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12
synapse/rest/media/v1/preview_url_resource.py
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@ -124,12 +124,10 @@ class PreviewUrlResource(BaseMediaResource):
# first check the memory cache - good to handle all the clients on this # first check the memory cache - good to handle all the clients on this
# HS thundering away to preview the same URL at the same time. # HS thundering away to preview the same URL at the same time.
try: og = self.cache.get(url)
og = self.cache[url] if og:
respond_with_json_bytes(request, 200, json.dumps(og), send_cors=True) respond_with_json_bytes(request, 200, json.dumps(og), send_cors=True)
return return
except:
pass
# then check the URL cache in the DB (which will also provide us with # then check the URL cache in the DB (which will also provide us with
# historical previews, if we have any) # historical previews, if we have any)
@ -197,6 +195,12 @@ class PreviewUrlResource(BaseMediaResource):
og = yield self._calc_og(tree, media_info, requester) og = yield self._calc_og(tree, media_info, requester)
except UnicodeDecodeError: except UnicodeDecodeError:
# XXX: evil evil bodge # XXX: evil evil bodge
# Empirically, sites like google.com mix Latin-1 and utf-8
# encodings in the same page. The rogue Latin-1 characters
# cause lxml to choke with a UnicodeDecodeError, so if we
# see this we go and do a manual decode of the HTML before
# handing it to lxml as utf-8 encoding, counter-intuitively,
# which seems to make it happier...
file = open(media_info['filename']) file = open(media_info['filename'])
body = file.read() body = file.read()
file.close() file.close()