1package com.cheogram.android;
2
3import java.lang.ref.WeakReference;
4import java.util.Collections;
5import java.util.HashSet;
6import java.util.Set;
7import java.util.Stack;
8import java.util.Vector;
9
10import com.google.common.base.Joiner;
11import com.google.common.collect.ImmutableSet;
12
13import android.os.Build;
14import android.telecom.CallAudioState;
15import android.telecom.Connection;
16import android.telecom.ConnectionRequest;
17import android.telecom.DisconnectCause;
18import android.telecom.PhoneAccount;
19import android.telecom.PhoneAccountHandle;
20import android.telecom.StatusHints;
21import android.telecom.TelecomManager;
22import android.telephony.PhoneNumberUtils;
23
24import android.Manifest;
25
26import androidx.annotation.RequiresApi;
27import androidx.core.content.ContextCompat;
28import android.content.ComponentName;
29import android.content.Context;
30import android.content.Intent;
31import android.content.pm.PackageManager;
32import android.content.ServiceConnection;
33import android.graphics.drawable.Icon;
34import android.net.Uri;
35import android.os.Bundle;
36import android.os.IBinder;
37import android.os.Parcel;
38import android.util.Log;
39
40import com.intentfilter.androidpermissions.PermissionManager;
41import com.intentfilter.androidpermissions.NotificationSettings;
42import com.intentfilter.androidpermissions.models.DeniedPermissions;
43import io.michaelrocks.libphonenumber.android.NumberParseException;
44
45import eu.siacs.conversations.R;
46import eu.siacs.conversations.entities.Account;
47import eu.siacs.conversations.services.AppRTCAudioManager;
48import eu.siacs.conversations.services.AvatarService;
49import eu.siacs.conversations.services.XmppConnectionService.XmppConnectionBinder;
50import eu.siacs.conversations.services.XmppConnectionService;
51import eu.siacs.conversations.ui.RtpSessionActivity;
52import eu.siacs.conversations.utils.PhoneNumberUtilWrapper;
53import eu.siacs.conversations.xmpp.Jid;
54import eu.siacs.conversations.xmpp.jingle.JingleRtpConnection;
55import eu.siacs.conversations.xmpp.jingle.Media;
56import eu.siacs.conversations.xmpp.jingle.RtpEndUserState;
57
58@RequiresApi(Build.VERSION_CODES.M)
59public class ConnectionService extends android.telecom.ConnectionService {
60 public XmppConnectionService xmppConnectionService = null;
61 protected ServiceConnection mConnection = new ServiceConnection() {
62 @Override
63 public void onServiceConnected(ComponentName className, IBinder service) {
64 XmppConnectionBinder binder = (XmppConnectionBinder) service;
65 xmppConnectionService = binder.getService();
66 }
67
68 @Override
69 public void onServiceDisconnected(ComponentName arg0) {
70 xmppConnectionService = null;
71 }
72 };
73
74 @Override
75 public void onCreate() {
76 // From XmppActivity.connectToBackend
77 Intent intent = new Intent(this, XmppConnectionService.class);
78 intent.setAction("ui");
79 try {
80 startService(intent);
81 } catch (IllegalStateException e) {
82 Log.w("com.cheogram.android.ConnectionService", "unable to start service from " + getClass().getSimpleName());
83 }
84 bindService(intent, mConnection, Context.BIND_AUTO_CREATE);
85 }
86
87 @Override
88 public void onDestroy() {
89 unbindService(mConnection);
90 }
91
92 @Override
93 public Connection onCreateOutgoingConnection(
94 PhoneAccountHandle phoneAccountHandle,
95 ConnectionRequest request
96 ) {
97 String[] gateway = phoneAccountHandle.getId().split("/", 2);
98
99 String rawTel = request.getAddress().getSchemeSpecificPart();
100 String postDial = PhoneNumberUtils.extractPostDialPortion(rawTel);
101
102 String tel = PhoneNumberUtils.extractNetworkPortion(rawTel);
103 try {
104 tel = PhoneNumberUtilWrapper.normalize(this, tel);
105 } catch (IllegalArgumentException | NumberParseException e) {
106 return Connection.createFailedConnection(
107 new DisconnectCause(DisconnectCause.ERROR)
108 );
109 }
110
111 if (xmppConnectionService == null) {
112 return Connection.createFailedConnection(
113 new DisconnectCause(DisconnectCause.ERROR)
114 );
115 }
116
117 if (xmppConnectionService.getJingleConnectionManager().isBusy() != null) {
118 return Connection.createFailedConnection(
119 new DisconnectCause(DisconnectCause.BUSY)
120 );
121 }
122
123 Account account = xmppConnectionService.findAccountByJid(Jid.of(gateway[0]));
124 if (account == null) {
125 return Connection.createFailedConnection(
126 new DisconnectCause(DisconnectCause.ERROR)
127 );
128 }
129
130 Jid with = Jid.ofLocalAndDomain(tel, gateway[1]);
131 CheogramConnection connection = new CheogramConnection(account, with, postDial);
132
133 PermissionManager permissionManager = PermissionManager.getInstance(this);
134 permissionManager.setNotificationSettings(
135 new NotificationSettings.Builder()
136 .withMessage(R.string.microphone_permission_for_call)
137 .withSmallIcon(R.drawable.ic_notification).build()
138 );
139
140 Set<String> permissions = new HashSet<>();
141 permissions.add(Manifest.permission.RECORD_AUDIO);
142 permissionManager.checkPermissions(permissions, new PermissionManager.PermissionRequestListener() {
143 @Override
144 public void onPermissionGranted() {
145 connection.setSessionId(xmppConnectionService.getJingleConnectionManager().proposeJingleRtpSession(
146 account,
147 with,
148 ImmutableSet.of(Media.AUDIO)
149 ));
150 }
151
152 @Override
153 public void onPermissionDenied(DeniedPermissions deniedPermissions) {
154 connection.close(new DisconnectCause(DisconnectCause.ERROR));
155 }
156 });
157
158 connection.setInitializing();
159 connection.setAddress(
160 Uri.fromParts("tel", tel, null), // Normalized tel as tel: URI
161 TelecomManager.PRESENTATION_ALLOWED
162 );
163
164 xmppConnectionService.setOnRtpConnectionUpdateListener(
165 (XmppConnectionService.OnJingleRtpConnectionUpdate) connection
166 );
167
168 return connection;
169 }
170
171 @Override
172 public Connection onCreateIncomingConnection(PhoneAccountHandle handle, ConnectionRequest request) {
173 Bundle extras = request.getExtras();
174 String accountJid = extras.getString("account");
175 String withJid = extras.getString("with");
176 String sessionId = extras.getString("sessionId");
177
178 Account account = xmppConnectionService.findAccountByJid(Jid.of(accountJid));
179 Jid with = Jid.of(withJid);
180
181 CheogramConnection connection = new CheogramConnection(account, with, null);
182 connection.setSessionId(sessionId);
183 connection.setAddress(
184 Uri.fromParts("tel", with.getLocal(), null),
185 TelecomManager.PRESENTATION_ALLOWED
186 );
187 connection.setRinging();
188
189 xmppConnectionService.setOnRtpConnectionUpdateListener(connection);
190
191 return connection;
192 }
193
194 public class CheogramConnection extends Connection implements XmppConnectionService.OnJingleRtpConnectionUpdate {
195 protected Account account;
196 protected Jid with;
197 protected String sessionId = null;
198 protected Stack<String> postDial = new Stack<>();
199 protected Icon gatewayIcon;
200 protected WeakReference<JingleRtpConnection> rtpConnection = null;
201
202 CheogramConnection(Account account, Jid with, String postDialString) {
203 super();
204 this.account = account;
205 this.with = with;
206
207 gatewayIcon = Icon.createWithBitmap(xmppConnectionService.getAvatarService().get(
208 account.getRoster().getContact(Jid.of(with.getDomain())),
209 AvatarService.getSystemUiAvatarSize(xmppConnectionService),
210 false
211 ));
212
213 if (postDialString != null) {
214 for (int i = postDialString.length() - 1; i >= 0; i--) {
215 postDial.push("" + postDialString.charAt(i));
216 }
217 }
218
219 setCallerDisplayName(
220 account.getDisplayName(),
221 TelecomManager.PRESENTATION_ALLOWED
222 );
223 setAudioModeIsVoip(true);
224 setConnectionCapabilities(
225 Connection.CAPABILITY_CAN_SEND_RESPONSE_VIA_CONNECTION
226 );
227 }
228
229 public void setSessionId(final String sessionId) {
230 this.sessionId = sessionId;
231 }
232
233 @Override
234 public void onJingleRtpConnectionUpdate(final Account account, final Jid with, final String sessionId, final RtpEndUserState state) {
235 if (sessionId == null || !sessionId.equals(this.sessionId)) return;
236 if (rtpConnection == null) {
237 this.with = with; // Store full JID of connection
238 findRtpConnection();
239 }
240
241 String statusLabel = null;
242
243 if (state == RtpEndUserState.FINDING_DEVICE) {
244 setInitialized();
245 } else if (state == RtpEndUserState.RINGING) {
246 setDialing();
247 } else if (state == RtpEndUserState.INCOMING_CALL) {
248 setRinging();
249 } else if (state == RtpEndUserState.CONNECTING) {
250 xmppConnectionService.setDiallerIntegrationActive(true);
251 setActive();
252 statusLabel = getString(R.string.rtp_state_connecting);
253 } else if (state == RtpEndUserState.CONNECTED) {
254 postDial();
255 } else if (state == RtpEndUserState.DECLINED_OR_BUSY) {
256 close(new DisconnectCause(DisconnectCause.BUSY));
257 } else if (state == RtpEndUserState.ENDED) {
258 close(new DisconnectCause(DisconnectCause.LOCAL));
259 } else if (state == RtpEndUserState.RETRACTED) {
260 close(new DisconnectCause(DisconnectCause.CANCELED));
261 } else if (RtpSessionActivity.END_CARD.contains(state)) {
262 close(new DisconnectCause(DisconnectCause.ERROR));
263 }
264
265 setStatusHints(new StatusHints(statusLabel, gatewayIcon, null));
266 }
267
268 @Override
269 public void onAudioDeviceChanged(AppRTCAudioManager.AudioDevice selectedAudioDevice, Set<AppRTCAudioManager.AudioDevice> availableAudioDevices) {
270 if (Build.VERSION.SDK_INT < 26) return;
271
272 switch(selectedAudioDevice) {
273 case SPEAKER_PHONE:
274 setAudioRoute(CallAudioState.ROUTE_SPEAKER);
275 case WIRED_HEADSET:
276 setAudioRoute(CallAudioState.ROUTE_WIRED_HEADSET);
277 case EARPIECE:
278 setAudioRoute(CallAudioState.ROUTE_EARPIECE);
279 case BLUETOOTH:
280 setAudioRoute(CallAudioState.ROUTE_BLUETOOTH);
281 default:
282 setAudioRoute(CallAudioState.ROUTE_WIRED_OR_EARPIECE);
283 }
284 }
285
286 @Override
287 public void onAnswer() {
288 // For incoming calls, a connection update may not have been triggered before answering
289 // so we have to acquire the rtp connection object here
290 findRtpConnection();
291 if (rtpConnection == null || rtpConnection.get() == null) {
292 close(new DisconnectCause(DisconnectCause.CANCELED));
293 } else {
294 rtpConnection.get().acceptCall();
295 }
296 }
297
298 @Override
299 public void onReject() {
300 findRtpConnection();
301 if (rtpConnection != null && rtpConnection.get() != null) {
302 rtpConnection.get().rejectCall();
303 }
304 close(new DisconnectCause(DisconnectCause.LOCAL));
305 }
306
307 // Set the connection to the disconnected state and clean up the resources
308 // Note that we cannot do this from onStateChanged() because calling destroy
309 // there seems to trigger a deadlock somewhere in the telephony stack.
310 public void close(DisconnectCause reason) {
311 setDisconnected(reason);
312 destroy();
313 xmppConnectionService.setDiallerIntegrationActive(false);
314 xmppConnectionService.removeRtpConnectionUpdateListener(this);
315 }
316
317 @Override
318 public void onDisconnect() {
319 if (rtpConnection == null || rtpConnection.get() == null) {
320 xmppConnectionService.getJingleConnectionManager().retractSessionProposal(account, with.asBareJid());
321 close(new DisconnectCause(DisconnectCause.LOCAL));
322 } else {
323 rtpConnection.get().endCall();
324 }
325 }
326
327 @Override
328 public void onAbort() {
329 onDisconnect();
330 }
331
332 @Override
333 public void onPlayDtmfTone(char c) {
334 rtpConnection.get().applyDtmfTone("" + c);
335 }
336
337 @Override
338 public void onPostDialContinue(boolean c) {
339 if (c) postDial();
340 }
341
342 protected void findRtpConnection() {
343 if (rtpConnection != null) return;
344
345 rtpConnection = xmppConnectionService.getJingleConnectionManager().findJingleRtpConnection(account, with, sessionId);
346 }
347
348 protected void sleep(int ms) {
349 try {
350 Thread.sleep(ms);
351 } catch (InterruptedException ex) {
352 Thread.currentThread().interrupt();
353 }
354 }
355
356 protected void postDial() {
357 while (!postDial.empty()) {
358 String next = postDial.pop();
359 if (next.equals(";")) {
360 Vector<String> v = new Vector<>(postDial);
361 Collections.reverse(v);
362 setPostDialWait(Joiner.on("").join(v));
363 return;
364 } else if (next.equals(",")) {
365 sleep(2000);
366 } else {
367 rtpConnection.get().applyDtmfTone(next);
368 sleep(100);
369 }
370 }
371 }
372 }
373}