3 files changed, 27 insertions, 0 deletions
diff --git a/java/com/android/dialer/constants/Constants.java b/java/com/android/dialer/constants/Constants.java
index 076393e63..f9d07e31d 100644
--- a/java/com/android/dialer/constants/Constants.java
+++ b/java/com/android/dialer/constants/Constants.java
@@ -16,6 +16,7 @@
 
 package com.android.dialer.constants;
 
+import android.content.Context;
 import android.support.annotation.NonNull;
 import com.android.dialer.common.Assert;
 import com.android.dialer.proguard.UsedByReflection;
@@ -56,5 +57,7 @@ public abstract class Constants {
   @NonNull
   public abstract String getAnnotatedCallLogProviderAuthority();
 
+  public abstract String getUserAgent(Context context);
+
   protected Constants() {}
 }
diff --git a/java/com/android/dialer/constants/aospdialer/ConstantsImpl.java b/java/com/android/dialer/constants/aospdialer/ConstantsImpl.java
index 1111732f3..38fd24b8a 100644
--- a/java/com/android/dialer/constants/aospdialer/ConstantsImpl.java
+++ b/java/com/android/dialer/constants/aospdialer/ConstantsImpl.java
@@ -16,6 +16,7 @@
 
 package com.android.dialer.constants;
 
+import android.content.Context;
 import android.support.annotation.NonNull;
 import com.android.dialer.proguard.UsedByReflection;
 
@@ -40,4 +41,9 @@ public class ConstantsImpl extends Constants {
   public String getAnnotatedCallLogProviderAuthority() {
     return "com.android.dialer.annotatedcalllog";
   }
+
+  @Override
+  public String getUserAgent(Context context) {
+    return null;
+  }
 }
diff --git a/java/com/android/dialer/constants/googledialer/ConstantsImpl.java b/java/com/android/dialer/constants/googledialer/ConstantsImpl.java
index 28d8b2514..e151344ba 100644
--- a/java/com/android/dialer/constants/googledialer/ConstantsImpl.java
+++ b/java/com/android/dialer/constants/googledialer/ConstantsImpl.java
@@ -16,6 +16,9 @@
 
 package com.android.dialer.constants;
 
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.os.Build;
 import android.support.annotation.NonNull;
 import com.android.dialer.proguard.UsedByReflection;
 
@@ -40,4 +43,19 @@ public class ConstantsImpl extends Constants {
   public String getAnnotatedCallLogProviderAuthority() {
     return "com.google.android.dialer.annotatedcalllog";
   }
+
+  @Override
+  public String getUserAgent(Context context) {
+    StringBuilder userAgent = new StringBuilder("GoogleDialer ");
+    try {
+      String versionName =
+          context.getPackageManager().getPackageInfo(context.getPackageName(), 0).versionName;
+      userAgent.append(versionName).append(" ");
+    } catch (PackageManager.NameNotFoundException e) {
+      // ignore
+    }
+    userAgent.append(Build.FINGERPRINT);
+
+    return userAgent.toString();
+  }
 }