From bdd1968abe5fc1b24ee46858f14d547b9a3a5f5c Mon Sep 17 00:00:00 2001
From: Oliver Woodman <olly@google.com>
Date: Fri, 12 Jun 2015 17:36:48 +0100
Subject: [PATCH] Allow reading of response headers from HttpDataSource
 implementations

---
 .../android/exoplayer/upstream/DefaultHttpDataSource.java  | 5 +++++
 .../google/android/exoplayer/upstream/HttpDataSource.java  | 7 +++++++
 2 files changed, 12 insertions(+)

diff --git a/library/src/main/java/com/google/android/exoplayer/upstream/DefaultHttpDataSource.java b/library/src/main/java/com/google/android/exoplayer/upstream/DefaultHttpDataSource.java
index e8b22b918f..f06e280288 100644
--- a/library/src/main/java/com/google/android/exoplayer/upstream/DefaultHttpDataSource.java
+++ b/library/src/main/java/com/google/android/exoplayer/upstream/DefaultHttpDataSource.java
@@ -152,6 +152,11 @@ public class DefaultHttpDataSource implements HttpDataSource {
     return connection == null ? null : connection.getURL().toString();
   }
 
+  @Override
+  public Map<String, List<String>> getResponseHeaders() {
+    return connection == null ? null : connection.getHeaderFields();
+  }
+
   @Override
   public void setRequestProperty(String name, String value) {
     Assertions.checkNotNull(name);
diff --git a/library/src/main/java/com/google/android/exoplayer/upstream/HttpDataSource.java b/library/src/main/java/com/google/android/exoplayer/upstream/HttpDataSource.java
index 6009a837a5..c9d977cd87 100644
--- a/library/src/main/java/com/google/android/exoplayer/upstream/HttpDataSource.java
+++ b/library/src/main/java/com/google/android/exoplayer/upstream/HttpDataSource.java
@@ -145,4 +145,11 @@ public interface HttpDataSource extends UriDataSource {
    */
   void clearAllRequestProperties();
 
+  /**
+   * Gets the headers provided in the response.
+   *
+   * @return The response headers, or {@code null} if response headers are unavailable.
+   */
+  Map<String, List<String>> getResponseHeaders();
+
 }