mirror of https://github.com/zulip/zulip.git
52 lines
1.5 KiB
Python
52 lines
1.5 KiB
Python
import json
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from typing import Any, Dict, Optional
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from pyoembed import PyOembedException, oEmbed
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def get_oembed_data(
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url: str, maxwidth: int = 640, maxheight: int = 480
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) -> 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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