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rebase all image URLs

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This commit is contained in:
Matthew Hodgson 2016-04-03 01:33:12 +01:00
parent 110780b18b
commit c3916462f6
1 changed files with 4 additions and 4 deletions
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8
synapse/rest/media/v1/preview_url_resource.py
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@ -235,14 +235,14 @@ class PreviewUrlResource(BaseMediaResource):
if not images:
images = tree.xpath("//img[@src]")
if images:
og['og:image'] = self._rebase_url(images[0].attrib['src'], media_info['uri'])
og['og:image'] = images[0].attrib['src']
# pre-cache the image for posterity
# FIXME: it might be cleaner to use the same flow as the main /preview_url request itself
# and benefit from the same caching etc. But for now we just rely on the caching
# of the master request to speed things up.
if 'og:image' in og and og['og:image']:
image_info = yield self._download_url(og['og:image'], requester.user)
image_info = yield self._download_url(self._rebase_url(og['og:image'], media_info['uri']), requester.user)
if self._is_media(image_info['media_type']):
# TODO: make sure we don't choke on white-on-transparent images
@ -286,9 +286,9 @@ class PreviewUrlResource(BaseMediaResource):
def _rebase_url(self, url, base):
base = list(urlparse(base))
url = list(urlparse(url))
if not url[0]:
if not url[0]: # fix up schema
url[0] = base[0] or "http"
if not url[1]:
if not url[1]: # fix up hostname
url[1] = base[1]
if not url[2].startswith('/'):
url[2] = re.sub(r'/[^/]+$', '/', base[2]) + url[2]