Update podcast create/update endpoints to validate autoDownloadSchedule cron expression, validate cron expression before starting in CronManager

client/components/modals/item/tabs/Schedule.vue

@@ -158,6 +158,8 @@ export default {
       this.isProcessing = true
       var updateResult = await this.$axios.$patch(`/api/items/${this.libraryItemId}/media`, updatePayload).catch((error) => {
         console.error('Failed to update', error)
+        const errorMessage = typeof error?.response?.data === 'string' ? error?.response?.data : null
+        this.$toast.error(errorMessage || this.$strings.ToastFailedToUpdate)
         return false
       })
       this.isProcessing = false

server/controllers/LibraryItemController.js

@@ -1,6 +1,7 @@
 const { Request, Response, NextFunction } = require('express')
 const Path = require('path')
 const fs = require('../libs/fsExtra')
+const cron = require('../libs/nodeCron')
 const uaParserJs = require('../libs/uaParser')
 const Logger = require('../Logger')
 const SocketAuthority = require('../SocketAuthority')
@@ -220,6 +221,11 @@ class LibraryItemController {
       } else if (mediaPayload.autoDownloadSchedule !== undefined && req.libraryItem.media.autoDownloadSchedule !== mediaPayload.autoDownloadSchedule) {
         isPodcastAutoDownloadUpdated = true
       }
+
+      if (mediaPayload.autoDownloadSchedule && !cron.validate(mediaPayload.autoDownloadSchedule)) {
+        Logger.error(`[LibraryItemController] Invalid auto download schedule cron expression "${mediaPayload.autoDownloadSchedule}" for library item "${req.libraryItem.media.title}"`)
+        return res.status(400).send('Invalid auto download schedule cron expression')
+      }
     }
 
     let hasUpdates = (await req.libraryItem.media.updateFromRequest(mediaPayload)) || mediaPayload.url
@@ -659,6 +665,11 @@ class LibraryItemController {
       const mediaPayload = updatePayload.mediaPayload
       const libraryItem = libraryItems.find((li) => li.id === updatePayload.id)
 
+      if (libraryItem.isPodcast && mediaPayload.autoDownloadSchedule && !cron.validate(mediaPayload.autoDownloadSchedule)) {
+        Logger.warn(`[LibraryItemController] Invalid auto download schedule cron expression "${mediaPayload.autoDownloadSchedule}" for library item "${libraryItem.media.title}" - skipping update`)
+        continue
+      }
+
       let hasUpdates = await libraryItem.media.updateFromRequest(mediaPayload)
 
       if (libraryItem.isBook && Array.isArray(mediaPayload.metadata?.series)) {

server/controllers/MiscController.js

@@ -8,7 +8,7 @@ const Database = require('../Database')
 const Watcher = require('../Watcher')
 
 const libraryItemFilters = require('../utils/queries/libraryItemFilters')
-const patternValidation = require('../libs/nodeCron/pattern-validation')
+const cron = require('../libs/nodeCron')
 const { isObject, getTitleIgnorePrefix } = require('../utils/index')
 const { sanitizeFilename } = require('../utils/fileUtils')
 
@@ -605,13 +605,11 @@ class MiscController {
       return res.sendStatus(400)
     }
 
-    try {
-      patternValidation(expression)
-      res.sendStatus(200)
-    } catch (error) {
-      Logger.warn(`[MiscController] Invalid cron expression ${expression}`, error.message)
-      res.status(400).send(error.message)
+    if (!cron.validate(expression)) {
+      Logger.warn(`[MiscController] Invalid cron expression ${expression}`)
+      return res.status(400).send('Invalid cron expression')
     }
+    res.sendStatus(200)
   }
 
   /**

server/controllers/PodcastController.js

@@ -5,6 +5,7 @@ const SocketAuthority = require('../SocketAuthority')
 const Database = require('../Database')
 
 const fs = require('../libs/fsExtra')
+const cron = require('../libs/nodeCron')
 
 const { getPodcastFeed, findMatchingEpisodes } = require('../utils/podcastUtils')
 const { getFileTimestampsWithIno, filePathToPOSIX, isSameOrSubPath } = require('../utils/fileUtils')
@@ -46,6 +47,11 @@ class PodcastController {
       return res.status(400).send('Invalid request body. "media" and "media.metadata" are required')
     }
 
+    if (payload.media.autoDownloadSchedule && !cron.validate(payload.media.autoDownloadSchedule)) {
+      Logger.error(`[PodcastController] Invalid auto download schedule cron expression "${payload.media.autoDownloadSchedule}"`)
+      return res.status(400).send('Invalid auto download schedule cron expression')
+    }
+
     const library = await Database.libraryModel.findByIdWithFolders(payload.libraryId)
     if (!library) {
       Logger.error(`[PodcastController] Create: Library not found "${payload.libraryId}"`)

server/managers/CronManager.js

@@ -153,6 +153,11 @@ class CronManager {
 
   startPodcastCron(expression, libraryItemIds) {
     try {
+      if (!cron.validate(expression)) {
+        Logger.error(`[CronManager] Invalid auto download schedule cron expression "${expression}" - not starting podcast episode check cron`)
+        return
+      }
+
       Logger.debug(`[CronManager] Scheduling podcast episode check cron "${expression}" for ${libraryItemIds.length} item(s)`)
       const task = cron.schedule(expression, () => {
         if (this.podcastCronExpressionsExecuting.includes(expression)) {

server/models/Podcast.js

@@ -78,6 +78,7 @@ class Podcast extends Model {
    */
   static async createFromRequest(payload, transaction) {
     const title = typeof payload.metadata.title === 'string' ? payload.metadata.title : null
+    // cron expression validated in controller
     const autoDownloadSchedule = typeof payload.autoDownloadSchedule === 'string' ? payload.autoDownloadSchedule : null
     const genres = Array.isArray(payload.metadata.genres) && payload.metadata.genres.every((g) => typeof g === 'string' && g.length) ? payload.metadata.genres : []
     const tags = Array.isArray(payload.tags) && payload.tags.every((t) => typeof t === 'string' && t.length) ? payload.tags : []
@@ -273,6 +274,7 @@ class Podcast extends Model {
       hasUpdates = true
     }
     if (typeof payload.autoDownloadSchedule === 'string' && payload.autoDownloadSchedule !== this.autoDownloadSchedule) {
+      // cron expression validated in controller
       this.autoDownloadSchedule = payload.autoDownloadSchedule
       hasUpdates = true
     }