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Improve MImageBody error handling (#9663)

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* Improve MImageBody error handling

* Fix strict errors

* We can assert this as isAnimated would be false if no content.info.mimetype
This commit is contained in:
Michael Telatynski 2022-12-05 12:50:19 +00:00 committed by GitHub
parent 7065c58174
commit 5f76528832
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 20 additions and 8 deletions
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28
src/components/views/messages/MImageBody.tsx
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@ -270,6 +270,7 @@ export default class MImageBody extends React.Component<IBodyProps, IState> {
// Set a placeholder image when we can't decrypt the image.
this.setState({ error });
return;
}
} else {
thumbUrl = this.getThumbUrl();
@ -291,16 +292,27 @@ export default class MImageBody extends React.Component<IBodyProps, IState> {
img.crossOrigin = "Anonymous"; // CORS allow canvas access
img.src = contentUrl;
await loadPromise;
const blob = await this.props.mediaEventHelper.sourceBlob.value;
if (!await blobIsAnimated(content.info.mimetype, blob)) {
isAnimated = false;
try {
await loadPromise;
} catch (error) {
logger.error("Unable to download attachment: ", error);
this.setState({ error: error as Error });
return;
}
if (isAnimated) {
const thumb = await createThumbnail(img, img.width, img.height, content.info.mimetype, false);
thumbUrl = URL.createObjectURL(thumb.thumbnail);
try {
const blob = await this.props.mediaEventHelper.sourceBlob.value;
if (!await blobIsAnimated(content.info?.mimetype, blob)) {
isAnimated = false;
}
if (isAnimated) {
const thumb = await createThumbnail(img, img.width, img.height, content.info!.mimetype, false);
thumbUrl = URL.createObjectURL(thumb.thumbnail);
}
} catch (error) {
// This is a non-critical failure, do not surface the error or bail the method here
logger.warn("Unable to generate thumbnail for animated image: ", error);
}
}
}