added better decryption error handeling and updated endpoint

src/api/routes/service/service.service.ts

@@ -710,11 +710,38 @@ export async function downloadCrunchyrollPlaylist(
             if (playlist.mediaGroups.AUDIO.audio.main.playlists[0].contentProtection) {
                 if (!playlist.mediaGroups.AUDIO.audio.main.playlists[0].contentProtection['com.widevine.alpha'].pssh) {
                     console.log('No PSSH found, exiting.')
+                    messageBox(
+                        'error',
+                        ['Cancel'],
+                        2,
+                        'Encryption Detect error',
+                        'Encryption Detect error',
+                        'Audio file is decrypted, but it looks like not with widevine. Stopping Download. Contact Developer'
+                    )
+                    server.logger.log({
+                        level: 'error',
+                        message: `Audio file is decrypted, but it looks like not with widevine in Download ${downloadID}`,
+                        error: 'No PSSH found',
+                        timestamp: new Date().toISOString(),
+                        section: 'crunchyrollDownloadProcessAudioDecryption'
+                    })
                     return
                 }
                 pssh = Uint8ArrayToBase64(playlist.mediaGroups.AUDIO.audio.main.playlists[0].contentProtection['com.widevine.alpha'].pssh)
 
                 keys = await getDRMKeys(pssh, assetId[1], list.account_id)
+
+                if (!keys) {
+                    await updatePlaylistByID(downloadID, 'failed')
+                    server.logger.log({
+                        level: 'error',
+                        message: `No decryption keys, failing Download ${downloadID}`,
+                        error: 'No decryption keys',
+                        timestamp: new Date().toISOString(),
+                        section: 'crunchyrollDownloadProcessAudioDecryption'
+                    })
+                    throw Error(`No decryption keys, failing Download ${downloadID}`)
+                }
             }
 
             if (
@@ -925,6 +952,18 @@ export async function downloadCrunchyrollPlaylist(
             pssh = Uint8ArrayToBase64(hq.contentProtection['com.widevine.alpha'].pssh)
 
             keys = await getDRMKeys(pssh, assetId[1], play.account_id)
+
+            if (!keys) {
+                await updatePlaylistByID(downloadID, 'failed')
+                server.logger.log({
+                    level: 'error',
+                    message: `No decryption keys, failing Download ${downloadID}`,
+                    error: 'No decryption keys',
+                    timestamp: new Date().toISOString(),
+                    section: 'crunchyrollDownloadProcessVideoDecryption'
+                })
+                throw Error(`No decryption keys, failing Download ${downloadID}`)
+            }
         }
 
         if ((hq.contentProtection && !drmL3blob && !drmL3key) || (hq.contentProtection && !drmL3blob) || (hq.contentProtection && !drmL3key)) {

src/api/services/decryption.ts

@@ -1,9 +1,22 @@
 import { Session } from '../modules/license'
 import { readFileSync } from 'fs'
 import { getWVKPath } from './widevine'
+import { messageBox } from '../../electron/background'
+import { server } from '../api'
 
 export async function getDRMKeys(pssh: string, assetID: string, userID: string) {
     const auth = await getWVKey(assetID, userID)
+
+    if (!auth) {
+        server.logger.log({
+            level: 'error',
+            message: 'WVKey missing, aborting',
+            timestamp: new Date().toISOString(),
+            section: 'drmAuthCrunchyrollStatus'
+        })
+        return
+    }
+
     const depssh = Buffer.from(pssh, 'base64')
 
     const keys = await getWVKPath()
@@ -14,23 +27,36 @@ export async function getDRMKeys(pssh: string, assetID: string, userID: string)
 
     if (!keys.client) return
 
-    const privateKey = readFileSync(keys.key)
+    try {
-    const identifierBlob = readFileSync(keys.client)
+        const privateKey = readFileSync(keys.key)
+        const identifierBlob = readFileSync(keys.client)
 
-    const session = new Session({ privateKey, identifierBlob }, depssh)
+        const session = new Session({ privateKey, identifierBlob }, depssh)
 
-    const response = await fetch('https://lic.drmtoday.com/license-proxy-widevine/cenc/', {
+        const response = await fetch('https://lic.drmtoday.com/license-proxy-widevine/cenc/', {
-        method: 'POST',
+            method: 'POST',
-        body: session.createLicenseRequest(),
+            body: session.createLicenseRequest(),
-        headers: {
+            headers: {
-            'dt-custom-data': auth.custom_data,
+                'dt-custom-data': auth.custom_data,
-            'x-dt-auth-token': auth.token
+                'x-dt-auth-token': auth.token
+            }
+        })
+
+        if (response.ok) {
+            const json = JSON.parse(await response.text())
+            return session.parseLicense(Buffer.from(json['license'], 'base64')) as { kid: string; key: string }[]
+        } else {
+            throw Error(await response.text())
         }
-    })
+    } catch (e) {
-
+        messageBox('error', ['Cancel'], 2, 'Error while getting video/audio decryption keys', 'Error while getting video/audio decryption keys', String(e))
-    if (response.ok) {
+        server.logger.log({
-        const json = JSON.parse(await response.text())
+            level: 'error',
-        return session.parseLicense(Buffer.from(json['license'], 'base64')) as { kid: string; key: string }[]
+            message: 'Error while getting video/audio decryption keys',
+            error: String(e),
+            timestamp: new Date().toISOString(),
+            section: 'drmVideoAudioKeyCrunchyrollFetch'
+        })
     }
 }
 
@@ -43,7 +69,7 @@ export async function getWVKey(assetID: string, userID: string) {
     }
 
     try {
-        const response = await fetch(`https://pl.crunchyroll.com/drm/v1/auth`, {
+        const response = await fetch(`https://beta-api.crunchyroll.com/drm/v1/auth`, {
             method: 'POST',
             body: JSON.stringify(body)
         })
@@ -59,7 +85,14 @@ export async function getWVKey(assetID: string, userID: string) {
             throw new Error(await response.text())
         }
     } catch (e) {
-        throw new Error(e as string)
+        messageBox('error', ['Cancel'], 2, 'Failed to Fetch Decryption token', 'Failed to Fetch Decryption token', String(e))
+        server.logger.log({
+            level: 'error',
+            message: 'Failed to Fetch Decryption token',
+            error: String(e),
+            timestamp: new Date().toISOString(),
+            section: 'drmAuthCrunchyrollFetch'
+        })
     }
 }