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Fix Content-Type header when browser user-agent is from an Apple mobile device

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Fixes #3310

Signed-off-by: Chance Zibolski <chance.zibolski@gmail.com>
This commit is contained in:
Chance Zibolski 2024-08-20 19:00:29 -07:00
parent 149bb3e5b2
commit 0b860e0d40
1 changed files with 11 additions and 2 deletions
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13
server/controllers/LibraryItemController.js
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@ -1,13 +1,14 @@
const { Request, Response, NextFunction } = require('express')
const Path = require('path')
const fs = require('../libs/fsExtra')
const uaParserJs = require('../libs/uaParser')
const Logger = require('../Logger')
const SocketAuthority = require('../SocketAuthority')
const Database = require('../Database')
const zipHelpers = require('../utils/zipHelpers')
const { reqSupportsWebp } = require('../utils/index')
const { ScanResult } = require('../utils/constants')
const { ScanResult, AudioMimeType } = require('../utils/constants')
const { getAudioMimeTypeFromExtname, encodeUriPath } = require('../utils/fileUtils')
const LibraryItemScanner = require('../scanner/LibraryItemScanner')
const AudioFileScanner = require('../scanner/AudioFileScanner')
@ -799,6 +800,7 @@ class LibraryItemController {
*/
async downloadLibraryFile(req, res) {
const libraryFile = req.libraryFile
const ua = uaParserJs(req.headers['user-agent'])
if (!req.user.canDownload) {
Logger.error(`[LibraryItemController] User "${req.user.username}" without download permission attempted to download file "${libraryFile.metadata.path}"`)
@ -814,8 +816,15 @@ class LibraryItemController {
}
// Express does not set the correct mimetype for m4b files so use our defined mimetypes if available
const audioMimeType = getAudioMimeTypeFromExtname(Path.extname(libraryFile.metadata.path))
let audioMimeType = getAudioMimeTypeFromExtname(Path.extname(libraryFile.metadata.path))
if (audioMimeType) {
// Work-around for Apple devices mishandling Content-Type on mobile browsers:
// https://github.com/advplyr/audiobookshelf/issues/3310
// We actually need to check for Webkit on Apple mobile devices because this issue impacts all browsers on iOS/iPadOS/etc, not just Safari.
const isAppleMobileBrowser = ua.device.vendor === 'Apple' && ua.device.type === 'mobile' && ua.engine.name === 'WebKit'
if (isAppleMobileBrowser && audioMimeType === AudioMimeType.M4B) {
audioMimeType = 'audio/m4b'
}
res.setHeader('Content-Type', audioMimeType)
}