mirror of https://github.com/zulip/zulip.git
49 lines
1.6 KiB
Python
49 lines
1.6 KiB
Python
from typing import Optional, Dict, Any
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from pyoembed import oEmbed, PyOembedException
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import json
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def get_oembed_data(url: str,
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maxwidth: Optional[int]=640,
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maxheight: Optional[int]=480) -> Optional[Dict[str, Any]]:
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try:
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data = oEmbed(url, maxwidth=maxwidth, maxheight=maxheight)
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except (PyOembedException, json.decoder.JSONDecodeError):
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return None
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oembed_resource_type = data.get('type', '')
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image = data.get('url', data.get('image'))
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thumbnail = data.get('thumbnail_url')
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html = data.pop('html', '')
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if oembed_resource_type == 'photo' and image:
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return dict(
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oembed=True,
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image=image,
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type=oembed_resource_type,
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title=data.get('title'),
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description=data.get('description'),
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)
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if oembed_resource_type == 'video' and html and thumbnail:
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return dict(
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oembed=True,
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image=thumbnail,
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type=oembed_resource_type,
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html=strip_cdata(html),
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title=data.get('title'),
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description=data.get('description'),
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)
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# Otherwise, start with just the embed type.
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return dict(
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type=oembed_resource_type,
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title=data.get('title'),
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description=data.get('description'),
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)
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def strip_cdata(html: str) -> str:
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# Work around a bug in SoundCloud's XML generation:
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# <html><![CDATA[<iframe ...></iframe>]]></html>
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if html.startswith('<![CDATA[') and html.endswith(']]>'):
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html = html[9:-3]
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return html
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