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Improve octetstream fallback in attachment channel

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Fedor Indutny 2024-08-26 17:14:09 -04:00 committed by GitHub
parent c251867699
commit 3d5d12c80b
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1 changed files with 18 additions and 2 deletions
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20
app/attachment_channel.ts
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@ -37,6 +37,11 @@ import {
import type { MainSQL } from '../ts/sql/main';
import type { MessageAttachmentsCursorType } from '../ts/sql/Interface';
import * as Errors from '../ts/types/errors';
import {
APPLICATION_OCTET_STREAM,
MIMETypeToString,
stringToMIMEType,
} from '../ts/types/MIME';
import { sleep } from '../ts/util/sleep';
import { isPathInside } from '../ts/util/isPathInside';
import { missingCaseError } from '../ts/util/missingCaseError';
@ -46,6 +51,10 @@ import { drop } from '../ts/util/drop';
import { strictAssert } from '../ts/util/assert';
import { ValidatingPassThrough } from '../ts/util/ValidatingPassThrough';
import { toWebStream } from '../ts/util/toWebStream';
import {
isImageTypeSupported,
isVideoTypeSupported,
} from '../ts/util/GoogleChrome';
import { decryptAttachmentV2ToSink } from '../ts/AttachmentCrypto';
let initialized = false;
@ -550,11 +559,18 @@ function handleRangeRequest({
const url = new URL(request.url);
// Get content-type
const contentType = url.searchParams.get('contentType');
const contentTypeParam = url.searchParams.get('contentType');
let contentType = MIMETypeToString(APPLICATION_OCTET_STREAM);
if (contentTypeParam) {
const mime = stringToMIMEType(contentTypeParam);
if (isImageTypeSupported(mime) || isVideoTypeSupported(mime)) {
contentType = MIMETypeToString(mime);
}
}
const headers: HeadersInit = {
'cache-control': 'no-cache, no-store',
'content-type': contentType || 'application/octet-stream',
'content-type': contentType,
};
if (size != null) {