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				https://github.com/advplyr/audiobookshelf.git
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			323 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			323 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
const fs = require('../libs/fsExtra')
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const Path = require('path')
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const Logger = require('../Logger')
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const readChunk = require('../libs/readChunk')
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const imageType = require('../libs/imageType')
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const globals = require('../utils/globals')
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const { downloadImageFile, filePathToPOSIX, checkPathIsFile } = require('../utils/fileUtils')
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const { extractCoverArt } = require('../utils/ffmpegHelpers')
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const CacheManager = require('../managers/CacheManager')
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class CoverManager {
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  constructor() { }
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  getCoverDirectory(libraryItem) {
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    if (global.ServerSettings.storeCoverWithItem && !libraryItem.isFile) {
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      return libraryItem.path
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    } else {
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      return Path.posix.join(Path.posix.join(global.MetadataPath, 'items'), libraryItem.id)
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    }
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  }
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  getFilesInDirectory(dir) {
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    try {
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      return fs.readdir(dir)
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    } catch (error) {
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      Logger.error(`[CoverManager] Failed to get files in dir ${dir}`, error)
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      return []
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    }
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  }
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  removeFile(filepath) {
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    try {
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      return fs.pathExists(filepath).then((exists) => {
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        if (!exists) Logger.warn(`[CoverManager] Attempting to remove file that does not exist ${filepath}`)
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        return exists ? fs.unlink(filepath) : false
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      })
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    } catch (error) {
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      Logger.error(`[CoverManager] Failed to remove file "${filepath}"`, error)
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      return false
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    }
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  }
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  // Remove covers that dont have the same filename as the new cover
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  async removeOldCovers(dirpath, newCoverExt) {
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    var filesInDir = await this.getFilesInDirectory(dirpath)
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    const imageExtensions = ['.jpeg', '.jpg', '.png', '.webp', '.jiff']
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    for (let i = 0; i < filesInDir.length; i++) {
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      var file = filesInDir[i]
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      var _extname = Path.extname(file).toLowerCase()
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      var _filename = Path.basename(file, _extname).toLowerCase()
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      if (_filename === 'cover' && _extname !== newCoverExt && imageExtensions.includes(_extname)) {
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        var filepath = Path.join(dirpath, file)
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        Logger.debug(`[CoverManager] Removing old cover from metadata "${filepath}"`)
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        await this.removeFile(filepath)
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      }
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    }
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  }
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  async checkFileIsValidImage(imagepath, removeOnInvalid = false) {
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    const buffer = await readChunk(imagepath, 0, 12)
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    const imgType = imageType(buffer)
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    if (!imgType) {
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      if (removeOnInvalid) await this.removeFile(imagepath)
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      return {
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        error: 'Invalid image'
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      }
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    }
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    if (!globals.SupportedImageTypes.includes(imgType.ext)) {
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      if (removeOnInvalid) await this.removeFile(imagepath)
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      return {
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        error: `Invalid image type ${imgType.ext} (Supported: ${globals.SupportedImageTypes.join(',')})`
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      }
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    }
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    return imgType
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  }
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  async uploadCover(libraryItem, coverFile) {
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    const extname = Path.extname(coverFile.name.toLowerCase())
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    if (!extname || !globals.SupportedImageTypes.includes(extname.slice(1))) {
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      return {
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        error: `Invalid image type ${extname} (Supported: ${globals.SupportedImageTypes.join(',')})`
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      }
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    }
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    const coverDirPath = this.getCoverDirectory(libraryItem)
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    await fs.ensureDir(coverDirPath)
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    const coverFullPath = Path.posix.join(coverDirPath, `cover${extname}`)
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    // Move cover from temp upload dir to destination
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    const success = await coverFile.mv(coverFullPath).then(() => true).catch((error) => {
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      Logger.error('[CoverManager] Failed to move cover file', path, error)
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      return false
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    })
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    if (!success) {
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      return {
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        error: 'Failed to move cover into destination'
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      }
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    }
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    await this.removeOldCovers(coverDirPath, extname)
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    await CacheManager.purgeCoverCache(libraryItem.id)
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    Logger.info(`[CoverManager] Uploaded libraryItem cover "${coverFullPath}" for "${libraryItem.media.metadata.title}"`)
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    libraryItem.updateMediaCover(coverFullPath)
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    return {
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      cover: coverFullPath
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    }
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  }
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  async downloadCoverFromUrl(libraryItem, url, forceLibraryItemFolder = false) {
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    try {
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      // Force save cover with library item is used for adding new podcasts
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      var coverDirPath = forceLibraryItemFolder ? libraryItem.path : this.getCoverDirectory(libraryItem)
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      await fs.ensureDir(coverDirPath)
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      var temppath = Path.posix.join(coverDirPath, 'cover')
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      let errorMsg = ''
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      let success = await downloadImageFile(url, temppath).then(() => true).catch((err) => {
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        errorMsg = err.message || 'Unknown error'
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        Logger.error(`[CoverManager] Download image file failed for "${url}"`, errorMsg)
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        return false
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      })
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      if (!success) {
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        return {
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          error: 'Failed to download image from url: ' + errorMsg
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        }
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      }
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      var imgtype = await this.checkFileIsValidImage(temppath, true)
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      if (imgtype.error) {
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        return imgtype
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      }
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      var coverFilename = `cover.${imgtype.ext}`
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      var coverFullPath = Path.posix.join(coverDirPath, coverFilename)
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      await fs.rename(temppath, coverFullPath)
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      await this.removeOldCovers(coverDirPath, '.' + imgtype.ext)
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      await CacheManager.purgeCoverCache(libraryItem.id)
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      Logger.info(`[CoverManager] Downloaded libraryItem cover "${coverFullPath}" from url "${url}" for "${libraryItem.media.metadata.title}"`)
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      libraryItem.updateMediaCover(coverFullPath)
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      return {
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        cover: coverFullPath
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      }
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    } catch (error) {
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      Logger.error(`[CoverManager] Fetch cover image from url "${url}" failed`, error)
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      return {
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        error: 'Failed to fetch image from url'
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      }
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    }
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  }
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  async validateCoverPath(coverPath, libraryItem) {
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    // Invalid cover path
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    if (!coverPath || coverPath.startsWith('http:') || coverPath.startsWith('https:')) {
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      Logger.error(`[CoverManager] validate cover path invalid http url "${coverPath}"`)
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      return {
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        error: 'Invalid cover path'
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      }
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    }
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    coverPath = filePathToPOSIX(coverPath)
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    // Cover path already set on media
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    if (libraryItem.media.coverPath == coverPath) {
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      Logger.debug(`[CoverManager] validate cover path already set "${coverPath}"`)
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      return {
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        cover: coverPath,
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        updated: false
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      }
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    }
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    // Cover path does not exist
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    if (!await fs.pathExists(coverPath)) {
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      Logger.error(`[CoverManager] validate cover path does not exist "${coverPath}"`)
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      return {
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        error: 'Cover path does not exist'
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      }
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    }
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    // Cover path is not a file
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    if (!await checkPathIsFile(coverPath)) {
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      Logger.error(`[CoverManager] validate cover path is not a file "${coverPath}"`)
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      return {
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        error: 'Cover path is not a file'
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      }
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    }
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    // Check valid image at path
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    var imgtype = await this.checkFileIsValidImage(coverPath, false)
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    if (imgtype.error) {
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      return imgtype
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    }
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    var coverDirPath = this.getCoverDirectory(libraryItem)
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    // Cover path is not in correct directory - make a copy
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    if (!coverPath.startsWith(coverDirPath)) {
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      await fs.ensureDir(coverDirPath)
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      var coverFilename = `cover.${imgtype.ext}`
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      var newCoverPath = Path.posix.join(coverDirPath, coverFilename)
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      Logger.debug(`[CoverManager] validate cover path copy cover from "${coverPath}" to "${newCoverPath}"`)
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      var copySuccess = await fs.copy(coverPath, newCoverPath, { overwrite: true }).then(() => true).catch((error) => {
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        Logger.error(`[CoverManager] validate cover path failed to copy cover`, error)
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        return false
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      })
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      if (!copySuccess) {
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        return {
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          error: 'Failed to copy cover to dir'
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        }
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      }
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      await this.removeOldCovers(coverDirPath, '.' + imgtype.ext)
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      Logger.debug(`[CoverManager] cover copy success`)
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      coverPath = newCoverPath
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    }
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    await CacheManager.purgeCoverCache(libraryItem.id)
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    libraryItem.updateMediaCover(coverPath)
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    return {
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      cover: coverPath,
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      updated: true
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    }
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  }
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  /**
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   * Extract cover art from audio file and save for library item
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   * @param {import('../models/Book').AudioFileObject[]} audioFiles 
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   * @param {string} libraryItemId 
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   * @param {string} [libraryItemPath] null for isFile library items 
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   * @returns {Promise<string>} returns cover path
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   */
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  async saveEmbeddedCoverArt(audioFiles, libraryItemId, libraryItemPath) {
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    let audioFileWithCover = audioFiles.find(af => af.embeddedCoverArt)
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    if (!audioFileWithCover) return null
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    let coverDirPath = null
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    if (global.ServerSettings.storeCoverWithItem && libraryItemPath) {
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      coverDirPath = libraryItemPath
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    } else {
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      coverDirPath = Path.posix.join(global.MetadataPath, 'items', libraryItemId)
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    }
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    await fs.ensureDir(coverDirPath)
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    const coverFilename = audioFileWithCover.embeddedCoverArt === 'png' ? 'cover.png' : 'cover.jpg'
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    const coverFilePath = Path.join(coverDirPath, coverFilename)
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    const coverAlreadyExists = await fs.pathExists(coverFilePath)
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    if (coverAlreadyExists) {
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      Logger.warn(`[CoverManager] Extract embedded cover art but cover already exists for "${coverFilePath}" - bail`)
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      return null
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    }
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    const success = await extractCoverArt(audioFileWithCover.metadata.path, coverFilePath)
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    if (success) {
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      await CacheManager.purgeCoverCache(libraryItemId)
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      return coverFilePath
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    }
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    return null
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  }
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  /**
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   * 
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   * @param {string} url 
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   * @param {string} libraryItemId 
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   * @param {string} [libraryItemPath] null if library item isFile or is from adding new podcast
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   * @returns {Promise<{error:string}|{cover:string}>}
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   */
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  async downloadCoverFromUrlNew(url, libraryItemId, libraryItemPath) {
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    try {
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      let coverDirPath = null
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      if (global.ServerSettings.storeCoverWithItem && libraryItemPath) {
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        coverDirPath = libraryItemPath
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      } else {
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        coverDirPath = Path.posix.join(global.MetadataPath, 'items', libraryItemId)
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      }
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      await fs.ensureDir(coverDirPath)
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      const temppath = Path.posix.join(coverDirPath, 'cover')
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      const success = await downloadImageFile(url, temppath).then(() => true).catch((err) => {
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        Logger.error(`[CoverManager] Download image file failed for "${url}"`, err)
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        return false
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      })
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      if (!success) {
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        return {
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          error: 'Failed to download image from url'
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        }
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      }
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      const imgtype = await this.checkFileIsValidImage(temppath, true)
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      if (imgtype.error) {
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        return imgtype
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      }
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      const coverFullPath = Path.posix.join(coverDirPath, `cover.${imgtype.ext}`)
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      await fs.rename(temppath, coverFullPath)
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      await this.removeOldCovers(coverDirPath, '.' + imgtype.ext)
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      await CacheManager.purgeCoverCache(libraryItemId)
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      Logger.info(`[CoverManager] Downloaded libraryItem cover "${coverFullPath}" from url "${url}"`)
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      return {
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        cover: coverFullPath
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      }
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    } catch (error) {
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      Logger.error(`[CoverManager] Fetch cover image from url "${url}" failed`, error)
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      return {
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        error: 'Failed to fetch image from url'
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      }
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    }
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  }
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}
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module.exports = new CoverManager() |