From de56b1f00a8f8ded8bde7001cc59a2c277651ea8 Mon Sep 17 00:00:00 2001
From: fionaxu <fionaxu@google.com>
Date: Tue, 24 Jan 2017 21:49:37 -0800
Subject: [PATCH] add an API for sending secret dialer code

Telephony provides an pulic API for sending secret
dialer code with the format of *#*#code*#*#.
This API only sent out broadcast for the default dialer app
and is backgound-check compliant.

Bug:33753947
Test: Manual
Change-Id: I10665828e88be07d96c7f2568a0c6878abe2e21b
---
 api/current.txt                               |  1 +
 api/system-current.txt                        |  1 +
 api/test-current.txt                          |  1 +
 .../android/telephony/TelephonyManager.java   | 24 +++++++++++++++++++
 .../internal/telephony/ITelephony.aidl        |  3 +++
 5 files changed, 30 insertions(+)

diff --git a/api/current.txt b/api/current.txt
index 28a2c7ab189b2..a74807b553ae8 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -38858,6 +38858,7 @@ package android.telephony {
     method public boolean isVoicemailVibrationEnabled(android.telecom.PhoneAccountHandle);
     method public boolean isWorldPhone();
     method public void listen(android.telephony.PhoneStateListener, int);
+    method public boolean sendDialerCode(java.lang.String);
     method public java.lang.String sendEnvelopeWithStatus(java.lang.String);
     method public void sendUssdRequest(java.lang.String, android.telephony.TelephonyManager.OnReceiveUssdResponseCallback, android.os.Handler);
     method public void sendUssdRequest(java.lang.String, int, android.telephony.TelephonyManager.OnReceiveUssdResponseCallback, android.os.Handler);
diff --git a/api/system-current.txt b/api/system-current.txt
index ce316d910fc2b..f19f1e7a63341 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -42211,6 +42211,7 @@ package android.telephony {
     method public boolean isWorldPhone();
     method public void listen(android.telephony.PhoneStateListener, int);
     method public boolean needsOtaServiceProvisioning();
+    method public boolean sendDialerCode(java.lang.String);
     method public java.lang.String sendEnvelopeWithStatus(java.lang.String);
     method public void sendUssdRequest(java.lang.String, android.telephony.TelephonyManager.OnReceiveUssdResponseCallback, android.os.Handler);
     method public void sendUssdRequest(java.lang.String, int, android.telephony.TelephonyManager.OnReceiveUssdResponseCallback, android.os.Handler);
diff --git a/api/test-current.txt b/api/test-current.txt
index f4a52ea5bf5ef..1f536759a137a 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -38993,6 +38993,7 @@ package android.telephony {
     method public boolean isVoicemailVibrationEnabled(android.telecom.PhoneAccountHandle);
     method public boolean isWorldPhone();
     method public void listen(android.telephony.PhoneStateListener, int);
+    method public boolean sendDialerCode(java.lang.String);
     method public java.lang.String sendEnvelopeWithStatus(java.lang.String);
     method public void sendUssdRequest(java.lang.String, android.telephony.TelephonyManager.OnReceiveUssdResponseCallback, android.os.Handler);
     method public void sendUssdRequest(java.lang.String, int, android.telephony.TelephonyManager.OnReceiveUssdResponseCallback, android.os.Handler);
diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index 5115edfcc9e8e..913da82cce772 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -2912,6 +2912,30 @@ public class TelephonyManager {
         }
     }
 
+    /**
+     * Send the special dialer code. The IPC caller must be the current default dialer.
+     * <p>
+     * Requires Permission:
+     *   {@link android.Manifest.permission#MODIFY_PHONE_STATE MODIFY_PHONE_STATE}
+     *
+     * @param inputCode The special dialer code to send which follows the format of *#*#<code>#*#*
+     * @return true if sent sucessfully, false otherwise
+     *
+     */
+    public boolean sendDialerCode(String inputCode) {
+        try {
+            final ITelephony telephony = getITelephony();
+            if (telephony == null) {
+                Log.e(TAG, "Telephony service unavailable");
+                return false;
+            }
+            return telephony.sendDialerCode(mContext.getOpPackageName(), inputCode);
+        } catch (RemoteException | NullPointerException ex) {
+            // This could happen before phone restarts due to crashing
+            return false;
+        }
+    }
+
     /**
      * Returns the IMS private user identity (IMPI) that was loaded from the ISIM.
      * @return the IMPI, or null if not present or not loaded
diff --git a/telephony/java/com/android/internal/telephony/ITelephony.aidl b/telephony/java/com/android/internal/telephony/ITelephony.aidl
index 8746f01928644..f2b8804e5e541 100644
--- a/telephony/java/com/android/internal/telephony/ITelephony.aidl
+++ b/telephony/java/com/android/internal/telephony/ITelephony.aidl
@@ -506,6 +506,9 @@ interface ITelephony {
     oneway void sendVisualVoicemailSmsForSubscriber(in String callingPackage, in int subId,
             in String number, in int port, in String text, in PendingIntent sentIntent);
 
+    // Send the special dialer code. The IPC caller must be the current default dialer.
+    boolean sendDialerCode(String callingPackageName, String inputCode);
+
     /**
      * Returns the network type for data transmission
      * Legacy call, permission-free