feat: 🎸 (xgplayer-hls) 加密hls支持更多的Key System

alisamercury · Mar 6, 2024 · e2ae13f · e2ae13f
1 parent 8b2409c
commit e2ae13f
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Showing 4 changed files with 50 additions and 3 deletions.
diff --git a/packages/xgplayer-hls/src/hls/manifest-loader/parser/media.js b/packages/xgplayer-hls/src/hls/manifest-loader/parser/media.js
@@ -133,12 +133,14 @@ export function parseMediaPlaylist (lines, parentUrl, useLowLatency) {
           curKey = null
           break
         }
-        if (attr.METHOD !== 'AES-128') throw new Error(`encrypt ${attr.METHOD}/${attr.KEYFORMAT} is not supported`)
         curKey = new MediaSegmentKey()
         curKey.method = attr.METHOD
         curKey.url = /^blob:/.test(attr.URI) ? attr.URI : getAbsoluteUrl(attr.URI, parentUrl)
         curKey.keyFormat = attr.KEYFORMAT || 'identity'
         curKey.keyFormatVersions = attr.KEYFORMATVERSIONS
+        if (!curKey.isSupported()) {
+          throw new Error(`encrypt ${attr.METHOD}/${attr.KEYFORMAT} is not supported`)
+        }
         if (attr.IV) {
           let str = attr.IV.slice(2)
           str = (str.length & 1 ? '0' : '') + str

diff --git a/packages/xgplayer-hls/src/hls/manifest-loader/parser/model.js b/packages/xgplayer-hls/src/hls/manifest-loader/parser/model.js
@@ -7,14 +7,21 @@ export class MasterPlaylist {
   isMaster = true
 }
 
-
 const MediaType = {
   Audio: 'AUDIO',
   Video: 'VIDEO',
   SubTitle: 'SUBTITLE',
   ClosedCaptions: 'CLOSED-CAPTIONS'
 }
 
+// #EXT-X-KEY KEYFORMAT values
+const KeySystems = {
+  CLEAR_KEY: 'org.w3.clearkey',
+  FAIRPLAY: 'com.apple.streamingkeydelivery',
+  WIDEVINE: 'urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed',
+  PLAYREADY: 'com.microsoft.playready'
+}
+
 export class MediaStream {
   id = 0
   url = ''
@@ -165,4 +172,41 @@ export class MediaSegmentKey {
       }
     }
   }
+
+  isSegmentEncrypted () {
+    const { method } = this.method
+    return method === 'AES-128' // || method === 'AES-256' || method === 'AES-256-CTR'
+  }
+
+  isValidKeySystem () {
+    const isKeyFormatValid =
+      [
+        KeySystems.CLEAR_KEY,
+        KeySystems.FAIRPLAY,
+        KeySystems.WIDEVINE,
+        KeySystems.PLAYREADY
+      ].indexOf(this.keyFormat) > -1
+    if (!isKeyFormatValid) {
+      return false
+    }
+
+    const isMethodValid =
+      ['SAMPLE-AES', 'SAMPLE-AES-CENC', 'SAMPLE-AES-CTR'].indexOf(this.method) > -1
+    if (!isMethodValid) {
+      return false
+    }
+    return true
+  }
+
+  isSupported () {
+    if (!this.method) {
+      return false
+    }
+    if (this.isSegmentEncrypted()) {
+      return true
+    } else if (this.isValidKeySystem()) {
+      return true
+    }
+    return false
+  }
 }
diff --git a/packages/xgplayer-hls/src/hls/segment-loader/index.js b/packages/xgplayer-hls/src/hls/segment-loader/index.js
@@ -124,7 +124,7 @@ export class SegmentLoader {
     }
 
     const keyUrl = seg.key?.url
-    if (keyUrl) {
+    if (keyUrl && seg.key.isSegmentEncrypted()) {
       keyIv = seg.key.iv
       key = this._keyCache[keyUrl]
       if (!key) {

diff --git a/packages/xgplayer-hls/src/plugin.js b/packages/xgplayer-hls/src/plugin.js
@@ -64,6 +64,7 @@ export class HlsPlugin extends BasePlugin {
 
     if (this.hls) this.hls.destroy()
     this.player.switchURL = this._onSwitchURL
+    this.player.handleSource = false // disable player source handle
 
     const hlsOpts = config.hls || {}
     hlsOpts.innerDegrade = hlsOpts.innerDegrade || config.innerDegrade