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Fetch images when previewing Twitter #11985

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Feb 22, 2022
Merged

Fetch images when previewing Twitter #11985

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915cd6a
Use bot user agent for openGraph queries
AndrewRyanChama Feb 14, 2022
391c58b
update comment
AndrewRyanChama Feb 15, 2022
d970531
Update changelog.d/11985.misc
AndrewRyanChama Feb 17, 2022
da93219
Update synapse/rest/media/v1/preview_url_resource.py
AndrewRyanChama Feb 17, 2022
2c7f8d3
update changelog
AndrewRyanChama Feb 19, 2022
4da6652
update changelog
AndrewRyanChama Feb 21, 2022
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1 change: 1 addition & 0 deletions changelog.d/11985.misc
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Use bot user agent for openGraph queries.
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4 changes: 1 addition & 3 deletions synapse/res/providers.json
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Expand Up @@ -5,13 +5,11 @@
"endpoints": [
{
"schemes": [
"https://twitter.com/*/status/*",
"https://*.twitter.com/*/status/*",
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"https://twitter.com/*/moments/*",
"https://*.twitter.com/*/moments/*"
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Weirdly these URLs don't seem to be used by Twitter anymore? We can leave them for now, but it is a bit annoying they changed their URL scheme at some point...

],
"url": "https://publish.twitter.com/oembed"
}
]
}
]
]
7 changes: 6 additions & 1 deletion synapse/rest/media/v1/preview_url_resource.py
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Expand Up @@ -402,7 +402,12 @@ async def _download_url(self, url: str, output_stream: BinaryIO) -> DownloadResu
url,
output_stream=output_stream,
max_size=self.max_spider_size,
headers={"Accept-Language": self.url_preview_accept_language},
headers={
b"Accept-Language": self.url_preview_accept_language,
b"User-Agent": [
"Synapse (bot; +https://github.com/matrix-org/synapse)"
],
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},
is_allowed_content_type=_is_previewable,
)
except SynapseError:
Expand Down