Update:Validate ASIN for author, chapter and match requests

server/controllers/AuthorController.js

@@ -9,7 +9,7 @@ const CacheManager = require('../managers/CacheManager')
 const CoverManager = require('../managers/CoverManager')
 const AuthorFinder = require('../finders/AuthorFinder')
 
-const { reqSupportsWebp } = require('../utils/index')
+const { reqSupportsWebp, isValidASIN } = require('../utils/index')
 
 const naturalSort = createNewSortInstance({
   comparer: new Intl.Collator(undefined, { numeric: true, sensitivity: 'base' }).compare
@@ -252,7 +252,7 @@ class AuthorController {
   async match(req, res) {
     let authorData = null
     const region = req.body.region || 'us'
-    if (req.body.asin) {
+    if (req.body.asin && isValidASIN(req.body.asin.toUpperCase?.())) {
       authorData = await AuthorFinder.findAuthorByASIN(req.body.asin, region)
     } else {
       authorData = await AuthorFinder.findAuthorByName(req.body.q, region)

server/controllers/SearchController.js

@@ -1,9 +1,10 @@
-const Logger = require("../Logger")
+const Logger = require('../Logger')
 const BookFinder = require('../finders/BookFinder')
 const PodcastFinder = require('../finders/PodcastFinder')
 const AuthorFinder = require('../finders/AuthorFinder')
 const MusicFinder = require('../finders/MusicFinder')
-const Database = require("../Database")
+const Database = require('../Database')
+const { isValidASIN } = require('../utils')
 
 class SearchController {
   constructor() {}
@@ -63,6 +64,9 @@ class SearchController {
 
   async findChapters(req, res) {
     const asin = req.query.asin
+    if (!isValidASIN(asin.toUpperCase())) {
+      return res.json({ error: 'Invalid ASIN' })
+    }
     const region = (req.query.region || 'us').toLowerCase()
     const chapterData = await BookFinder.findChapters(asin, region)
     if (!chapterData) {

server/providers/Audible.js

@@ -1,6 +1,7 @@
 const axios = require('axios').default
 const htmlSanitizer = require('../utils/htmlSanitizer')
 const Logger = require('../Logger')
+const { isValidASIN } = require('../utils/index')
 
 class Audible {
   #responseTimeout = 30000
@@ -81,16 +82,6 @@ class Audible {
     }
   }
 
-  /**
-   * Test if a search title matches an ASIN. Supports lowercase letters
-   *
-   * @param {string} title
-   * @returns {boolean}
-   */
-  isProbablyAsin(title) {
-    return /^[0-9A-Za-z]{10}$/.test(title)
-  }
-
   /**
    *
    * @param {string} asin
@@ -137,11 +128,11 @@ class Audible {
     if (!timeout || isNaN(timeout)) timeout = this.#responseTimeout
 
     let items
-    if (asin) {
+    if (asin && isValidASIN(asin.toUpperCase())) {
       items = [await this.asinSearch(asin, region, timeout)]
     }
 
-    if (!items && this.isProbablyAsin(title)) {
+    if (!items && isValidASIN(title.toUpperCase())) {
       items = [await this.asinSearch(title, region, timeout)]
     }
 

server/providers/Audnexus.js

@@ -1,7 +1,8 @@
 const axios = require('axios').default
-const { levenshteinDistance } = require('../utils/index')
-const Logger = require('../Logger')
 const Throttle = require('p-throttle')
+const Logger = require('../Logger')
+const { levenshteinDistance } = require('../utils/index')
+const { isValidASIN } = require('../utils/index')
 
 /**
  * @typedef AuthorSearchObj
@@ -66,13 +67,19 @@ class Audnexus {
    * @returns {Promise<AuthorSearchObj>}
    */
   authorRequest(asin, region) {
-    asin = encodeURIComponent(asin)
-    const regionQuery = region ? `?region=${region}` : ''
-    const authorRequestUrl = `${this.baseUrl}/authors/${asin}${regionQuery}`
+    if (!isValidASIN(asin?.toUpperCase?.())) {
+      Logger.error(`[Audnexus] Invalid ASIN ${asin}`)
+      return null
+    }
+
+    asin = encodeURIComponent(asin.toUpperCase())
+
+    const authorRequestUrl = new URL(`${this.baseUrl}/authors/${asin}`)
+    if (region) authorRequestUrl.searchParams.set('region', region)
 
     Logger.info(`[Audnexus] Searching for author "${authorRequestUrl}"`)
 
-    return this._processRequest(this.limiter(() => axios.get(authorRequestUrl)))
+    return this._processRequest(this.limiter(() => axios.get(authorRequestUrl.toString())))
       .then((res) => res.data)
       .catch((error) => {
         Logger.error(`[Audnexus] Author request failed for ${asin}`, error)
@@ -135,10 +142,20 @@ class Audnexus {
     }
   }
 
+  /**
+   *
+   * @param {string} asin
+   * @param {string} region
+   * @returns {Promise<Object>}
+   */
   getChaptersByASIN(asin, region) {
     Logger.debug(`[Audnexus] Get chapters for ASIN ${asin}/${region}`)
 
-    return this._processRequest(this.limiter(() => axios.get(`${this.baseUrl}/books/${asin}/chapters?region=${region}`)))
+    asin = encodeURIComponent(asin.toUpperCase())
+    const chaptersRequestUrl = new URL(`${this.baseUrl}/books/${asin}/chapters`)
+    if (region) chaptersRequestUrl.searchParams.set('region', region)
+
+    return this._processRequest(this.limiter(() => axios.get(chaptersRequestUrl.toString())))
       .then((res) => res.data)
       .catch((error) => {
         Logger.error(`[Audnexus] Chapter ASIN request failed for ${asin}/${region}`, error)

server/utils/index.js

@@ -1,7 +1,7 @@
 const Path = require('path')
 const uuid = require('uuid')
 const Logger = require('../Logger')
-const { parseString } = require("xml2js")
+const { parseString } = require('xml2js')
 const areEquivalent = require('./areEquivalent')
 
 const levenshteinDistance = (str1, str2, caseSensitive = false) => {
@@ -11,8 +11,9 @@ const levenshteinDistance = (str1, str2, caseSensitive = false) => {
     str1 = str1.toLowerCase()
     str2 = str2.toLowerCase()
   }
-  const track = Array(str2.length + 1).fill(null).map(() =>
-    Array(str1.length + 1).fill(null))
+  const track = Array(str2.length + 1)
+    .fill(null)
+    .map(() => Array(str1.length + 1).fill(null))
   for (let i = 0; i <= str1.length; i += 1) {
     track[0][i] = i
   }
@@ -25,7 +26,7 @@ const levenshteinDistance = (str1, str2, caseSensitive = false) => {
       track[j][i] = Math.min(
         track[j][i - 1] + 1, // deletion
         track[j - 1][i] + 1, // insertion
-        track[j - 1][i - 1] + indicator, // substitution
+        track[j - 1][i - 1] + indicator // substitution
       )
     }
   }
@@ -138,7 +139,10 @@ module.exports.toNumber = (val, fallback = 0) => {
 module.exports.cleanStringForSearch = (str) => {
   if (!str) return ''
   // Remove ' . ` " ,
-  return str.toLowerCase().replace(/[\'\.\`\",]/g, '').trim()
+  return str
+    .toLowerCase()
+    .replace(/[\'\.\`\",]/g, '')
+    .trim()
 }
 
 const getTitleParts = (title) => {
@@ -235,3 +239,14 @@ module.exports.isUUID = (str) => {
   if (!str || typeof str !== 'string') return false
   return uuid.validate(str)
 }
+
+/**
+ * Check if a string is a valid ASIN
+ *
+ * @param {string} str
+ * @returns {boolean}
+ */
+module.exports.isValidASIN = (str) => {
+  if (!str || typeof str !== 'string') return false
+  return /^[A-Z0-9]{10}$/.test(str)
+}