Add MusicBrainz provider

server/providers/MusicBrainz.js

@@ -0,0 +1,51 @@
+const axios = require('axios')
+const packageJson = require('../../package.json')
+const Logger = require('../Logger')
+const { isNullOrNaN } = require('../utils/index')
+
+class MusicBrainz {
+  constructor() { }
+
+  get userAgentString() {
+    return `audiobookshelf/${packageJson.version} (https://audiobookshelf.org)`
+  }
+
+  // https://musicbrainz.org/doc/MusicBrainz_API/Search
+  searchTrack(options) {
+    let luceneParts = []
+    if (options.artist) {
+      luceneParts.push(`artist:${options.artist}`)
+    }
+    if (options.isrc) {
+      luceneParts.push(`isrc:${options.isrc}`)
+    }
+    if (options.title) {
+      luceneParts.push(`recording:${options.title}`)
+    }
+    if (options.album) {
+      luceneParts.push(`release:${options.album}`)
+    }
+    if (!luceneParts.length) {
+      Logger.error(`[MusicBrainz] Invalid search options - must have at least one of artist, isrc, title, album`)
+      return []
+    }
+
+    const query = {
+      query: luceneParts.join(' AND '),
+      limit: isNullOrNaN(options.limit) ? 15 : Number(options.limit),
+      fmt: 'json'
+    }
+    const config = {
+      headers: {
+        'User-Agent': this.userAgentString
+      }
+    }
+    return axios.get('https://musicbrainz.org/ws/2/recording', { params: query }, config).then((response) => {
+      return response.data.recordings || []
+    }).catch((error) => {
+      Logger.error(`[MusicBrainz] search request error`, error)
+      return []
+    })
+  }
+}
+module.exports = MusicBrainz