fix(android): android cache header (#3832)

* fix: android cache header

android/src/main/java/com/brentvatne/exoplayer/ReactExoplayerSimpleCache.kt

@@ -12,10 +12,9 @@ import java.io.File
 object RNVSimpleCache {
     // TODO: when to release? how to check if cache is released?
     private var simpleCache: SimpleCache? = null
-    var cacheDataSourceFactory: DataSource.Factory? = null
 
-    fun setSimpleCache(context: Context, cacheSize: Int, factory: HttpDataSource.Factory) {
-        if (cacheDataSourceFactory != null || cacheSize <= 0) return
+    fun setSimpleCache(context: Context, cacheSize: Int) {
+        if (simpleCache != null || cacheSize <= 0) return
         simpleCache = SimpleCache(
             File(context.cacheDir, "RNVCache"),
             LeastRecentlyUsedCacheEvictor(
@@ -23,9 +22,12 @@ object RNVSimpleCache {
             ),
             StandaloneDatabaseProvider(context)
         )
-        cacheDataSourceFactory =
-            CacheDataSource.Factory()
-                .setCache(simpleCache!!)
-                .setUpstreamDataSourceFactory(factory)
+    }
+
+    fun getCacheFactory(factory: HttpDataSource.Factory): DataSource.Factory {
+        if (simpleCache == null) return factory
+        return CacheDataSource.Factory()
+            .setCache(simpleCache!!)
+            .setUpstreamDataSourceFactory(factory)
     }
 }

android/src/main/java/com/brentvatne/exoplayer/ReactExoplayerView.java

@@ -215,7 +215,7 @@ public class ReactExoplayerView extends FrameLayout implements
     private boolean selectTrackWhenReady = false;
     private Handler mainHandler;
     private Runnable mainRunnable;
-    private DataSource.Factory cacheDataSourceFactory;
+    private boolean useCache = false;
     private ControlsConfig controlsConfig = new ControlsConfig();
 
     // Props from React
@@ -709,8 +709,8 @@ public class ReactExoplayerView extends FrameLayout implements
                 .setAdErrorListener(this)
                 .build();
         DefaultMediaSourceFactory mediaSourceFactory = new DefaultMediaSourceFactory(mediaDataSourceFactory);
-        if (cacheDataSourceFactory != null) {
-            mediaSourceFactory.setDataSourceFactory(cacheDataSourceFactory);
+        if (useCache) {
+            mediaSourceFactory.setDataSourceFactory(RNVSimpleCache.INSTANCE.getCacheFactory(buildHttpDataSourceFactory(true)));
         }
 
         if (adsLoader != null) {
@@ -1016,13 +1016,13 @@ public class ReactExoplayerView extends FrameLayout implements
                         throw new IllegalStateException("cannot open input file" + srcUri);
                     }
                 } else if ("file".equals(srcUri.getScheme()) ||
-                        cacheDataSourceFactory == null) {
+                        !useCache) {
                     mediaSourceFactory = new ProgressiveMediaSource.Factory(
                             mediaDataSourceFactory
                     );
                 } else {
                     mediaSourceFactory = new ProgressiveMediaSource.Factory(
-                            cacheDataSourceFactory
+                            RNVSimpleCache.INSTANCE.getCacheFactory(buildHttpDataSourceFactory(true))
                     );
 
                 }
@@ -2241,12 +2241,11 @@ public class ReactExoplayerView extends FrameLayout implements
         if (bufferConfig.getCacheSize() > 0) {
             RNVSimpleCache.INSTANCE.setSimpleCache(
                     this.getContext(),
-                    bufferConfig.getCacheSize(),
-                    buildHttpDataSourceFactory(false)
+                    bufferConfig.getCacheSize()
             );
-            cacheDataSourceFactory = RNVSimpleCache.INSTANCE.getCacheDataSourceFactory();
+            useCache = true;
         } else {
-            cacheDataSourceFactory = null;
+            useCache = false;
         }
         releasePlayer();
         initializePlayer();

examples/basic/src/VideoPlayer.tsx

@@ -180,6 +180,7 @@ class VideoPlayer extends Component {
     {
       description: 'another bunny (can be saved)',
       uri: 'https://rawgit.com/mediaelement/mediaelement-files/master/big_buck_bunny.mp4',
+      headers: {referer: 'www.github.com', 'User-Agent': 'react.native.video'},
     },
     {
       description: 'sintel with subtitles',