1 files changed, 222 insertions, 0 deletions
diff --git a/java/com/android/dialer/callrecord/impl/CallRecorderService.java b/java/com/android/dialer/callrecord/impl/CallRecorderService.java
new file mode 100644
index 000000000..298e8ade0
--- /dev/null
+++ b/java/com/android/dialer/callrecord/impl/CallRecorderService.java
@@ -0,0 +1,222 @@
+/*
+ * Copyright (C) 2014 The CyanogenMod Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.dialer.callrecord.impl;
+
+import android.app.Service;
+import android.content.ContentUris;
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.content.pm.PackageManager;
+import android.media.MediaRecorder;
+import android.net.Uri;
+import android.os.IBinder;
+import android.os.ParcelFileDescriptor;
+import android.os.RemoteException;
+import android.provider.MediaStore;
+import android.text.TextUtils;
+import android.provider.Settings;
+import android.util.Log;
+
+import com.android.dialer.callrecord.CallRecording;
+import com.android.dialer.callrecord.ICallRecorderService;
+
+import java.io.File;
+import java.io.IOException;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+import com.android.dialer.R;
+
+public class CallRecorderService extends Service {
+  private static final String TAG = "CallRecorderService";
+  private static final boolean DBG = false;
+
+  private MediaRecorder mMediaRecorder = null;
+  private CallRecording mCurrentRecording = null;
+
+  private SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyMMdd_HHmmssSSS");
+
+  private final ICallRecorderService.Stub mBinder = new ICallRecorderService.Stub() {
+    @Override
+    public CallRecording stopRecording() {
+      return stopRecordingInternal();
+    }
+
+    @Override
+    public boolean startRecording(String phoneNumber, long creationTime) throws RemoteException {
+      return startRecordingInternal(phoneNumber, creationTime);
+    }
+
+    @Override
+    public boolean isRecording() throws RemoteException {
+      return mMediaRecorder != null;
+    }
+
+    @Override
+    public CallRecording getActiveRecording() throws RemoteException {
+      return mCurrentRecording;
+    }
+  };
+
+  @Override
+  public void onCreate() {
+    if (DBG) Log.d(TAG, "Creating CallRecorderService");
+  }
+
+  @Override
+  public IBinder onBind(Intent intent) {
+    return mBinder;
+  }
+
+  private int getAudioSource() {
+    return getResources().getInteger(R.integer.call_recording_audio_source);
+  }
+
+  private int getAudioFormatChoice() {
+    // This replicates PreferenceManager.getDefaultSharedPreferences, except
+    // that we need multi process preferences, as the pref is written in a separate
+    // process (com.android.dialer vs. com.android.incallui)
+    final String prefName = getPackageName() + "_preferences";
+    final SharedPreferences prefs = getSharedPreferences(prefName, MODE_MULTI_PROCESS);
+
+    try {
+      String value = prefs.getString(getString(R.string.call_recording_format_key), null);
+      if (value != null) {
+        return Integer.parseInt(value);
+      }
+    } catch (NumberFormatException e) {
+      // ignore and fall through
+    }
+    return 0;
+  }
+
+  private synchronized boolean startRecordingInternal(String phoneNumber, long creationTime) {
+    if (mMediaRecorder != null) {
+      if (DBG) {
+        Log.d(TAG, "Start called with recording in progress, stopping  current recording");
+      }
+      stopRecordingInternal();
+    }
+
+    if (checkSelfPermission(android.Manifest.permission.RECORD_AUDIO)
+        != PackageManager.PERMISSION_GRANTED) {
+      Log.w(TAG, "Record audio permission not granted, can't record call");
+      return false;
+    }
+
+    if (DBG) Log.d(TAG, "Starting recording");
+
+    mMediaRecorder = new MediaRecorder();
+    try {
+      int audioSource = getAudioSource();
+      int formatChoice = getAudioFormatChoice();
+      if (DBG) Log.d(TAG, "Creating media recorder with audio source " + audioSource);
+      mMediaRecorder.setAudioSource(audioSource);
+      mMediaRecorder.setOutputFormat(formatChoice == 0
+          ? MediaRecorder.OutputFormat.AMR_WB : MediaRecorder.OutputFormat.MPEG_4);
+      mMediaRecorder.setAudioEncoder(formatChoice == 0
+          ? MediaRecorder.AudioEncoder.AMR_WB : MediaRecorder.AudioEncoder.AAC);
+    } catch (IllegalStateException e) {
+      Log.w(TAG, "Error initializing media recorder", e);
+      mMediaRecorder.reset();
+      mMediaRecorder.release();
+      mMediaRecorder = null;
+      return false;
+    }
+
+    String fileName = generateFilename(phoneNumber);
+    Uri uri = getContentResolver().insert(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,
+            CallRecording.generateMediaInsertValues(fileName, creationTime));
+
+    try {
+      ParcelFileDescriptor pfd = getContentResolver().openFileDescriptor(uri, "w");
+      if (pfd == null) {
+        throw new IOException("Opening file for URI " + uri + " failed");
+      }
+      mMediaRecorder.setOutputFile(pfd.getFileDescriptor());
+      mMediaRecorder.prepare();
+      mMediaRecorder.start();
+
+      long mediaId = Long.parseLong(uri.getLastPathSegment());
+      mCurrentRecording = new CallRecording(phoneNumber, creationTime,
+              fileName, System.currentTimeMillis(), mediaId);
+      return true;
+    } catch (IOException | IllegalStateException e) {
+      Log.w(TAG, "Could not start recording", e);
+      getContentResolver().delete(uri, null, null);
+    } catch (RuntimeException e) {
+      getContentResolver().delete(uri, null, null);
+      // only catch exceptions thrown by the MediaRecorder JNI code
+      if (e.getMessage().indexOf("start failed") >= 0) {
+        Log.w(TAG, "Could not start recording", e);
+      } else {
+        throw e;
+      }
+    }
+
+    mMediaRecorder.reset();
+    mMediaRecorder.release();
+    mMediaRecorder = null;
+
+    return false;
+  }
+
+  private synchronized CallRecording stopRecordingInternal() {
+    CallRecording recording = mCurrentRecording;
+    if (DBG) Log.d(TAG, "Stopping current recording");
+    if (mMediaRecorder != null) {
+      try {
+        mMediaRecorder.stop();
+        mMediaRecorder.reset();
+        mMediaRecorder.release();
+      } catch (IllegalStateException e) {
+        Log.e(TAG, "Exception closing media recorder", e);
+      }
+
+      Uri uri = ContentUris.withAppendedId(
+          MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, mCurrentRecording.mediaId);
+      getContentResolver().update(uri, CallRecording.generateCompletedValues(), null, null);
+
+      mMediaRecorder = null;
+      mCurrentRecording = null;
+    }
+    return recording;
+  }
+
+  @Override
+  public void onDestroy() {
+    super.onDestroy();
+    if (DBG) Log.d(TAG, "Destroying CallRecorderService");
+  }
+
+  private String generateFilename(String number) {
+    String timestamp = DATE_FORMAT.format(new Date());
+
+    if (TextUtils.isEmpty(number)) {
+      number = "unknown";
+    }
+
+    int formatChoice = getAudioFormatChoice();
+    String extension = formatChoice == 0 ? ".amr" : ".m4a";
+    return number + "_" + timestamp + extension;
+  }
+
+  public static boolean isEnabled(Context context) {
+    return context.getResources().getBoolean(R.bool.call_recording_enabled);
+  }
+}