1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.phone; 18 19 import android.Manifest; 20 import android.app.Activity; 21 import android.app.ActivityManager; 22 import android.app.AlertDialog; 23 import android.app.AppOpsManager; 24 import android.app.Dialog; 25 import android.content.BroadcastReceiver; 26 import android.content.Context; 27 import android.content.DialogInterface; 28 import android.content.Intent; 29 import android.content.res.Configuration; 30 import android.content.res.Resources; 31 import android.net.Uri; 32 import android.os.Bundle; 33 import android.os.Handler; 34 import android.os.Message; 35 import android.os.RemoteException; 36 import android.os.SystemProperties; 37 import android.os.UserHandle; 38 import android.telecom.PhoneAccount; 39 import android.telephony.PhoneNumberUtils; 40 import android.text.TextUtils; 41 import android.util.Log; 42 import android.view.View; 43 import android.widget.ProgressBar; 44 45 import com.android.internal.telephony.Phone; 46 import com.android.internal.telephony.PhoneConstants; 47 import com.android.internal.telephony.TelephonyCapabilities; 48 49 /** 50 * OutgoingCallBroadcaster receives CALL and CALL_PRIVILEGED Intents, and broadcasts the 51 * ACTION_NEW_OUTGOING_CALL intent. ACTION_NEW_OUTGOING_CALL is an ordered broadcast intent which 52 * contains the phone number being dialed. Applications can use this intent to (1) see which numbers 53 * are being dialed, (2) redirect a call (change the number being dialed), or (3) prevent a call 54 * from being placed. 55 * 56 * After the other applications have had a chance to see the 57 * ACTION_NEW_OUTGOING_CALL intent, it finally reaches the 58 * {@link OutgoingCallReceiver}, which passes the (possibly modified) 59 * intent on to the {@link SipCallOptionHandler}, which will 60 * ultimately start the call using the CallController.placeCall() API. 61 * 62 * Calls where no number is present (like for a CDMA "empty flash" or a nonexistent voicemail 63 * number) are exempt from being broadcast. 64 * Calls to emergency numbers are still broadcast for informative purposes. The call is placed 65 * prior to sending ACTION_NEW_OUTGOING_CALL and cannot be redirected nor prevented. 66 */ 67 public class OutgoingCallBroadcaster extends Activity 68 implements DialogInterface.OnClickListener, DialogInterface.OnCancelListener { 69 70 private static final String TAG = "OutgoingCallBroadcaster"; 71 private static final boolean DBG = 72 (PhoneGlobals.DBG_LEVEL >= 1) && (SystemProperties.getInt("ro.debuggable", 0) == 1); 73 // Do not check in with VDBG = true, since that may write PII to the system log. 74 private static final boolean VDBG = false; 75 76 public static final String ACTION_SIP_SELECT_PHONE = "com.android.phone.SIP_SELECT_PHONE"; 77 public static final String EXTRA_ALREADY_CALLED = "android.phone.extra.ALREADY_CALLED"; 78 public static final String EXTRA_ORIGINAL_URI = "android.phone.extra.ORIGINAL_URI"; 79 public static final String EXTRA_NEW_CALL_INTENT = "android.phone.extra.NEW_CALL_INTENT"; 80 public static final String EXTRA_SIP_PHONE_URI = "android.phone.extra.SIP_PHONE_URI"; 81 public static final String EXTRA_ACTUAL_NUMBER_TO_DIAL = 82 "android.phone.extra.ACTUAL_NUMBER_TO_DIAL"; 83 public static final String EXTRA_THIRD_PARTY_CALL_COMPONENT = 84 "android.phone.extra.THIRD_PARTY_CALL_COMPONENT"; 85 86 /** 87 * Identifier for intent extra for sending an empty Flash message for 88 * CDMA networks. This message is used by the network to simulate a 89 * press/depress of the "hookswitch" of a landline phone. Aka "empty flash". 90 * 91 * TODO: Receiving an intent extra to tell the phone to send this flash is a 92 * temporary measure. To be replaced with an external ITelephony call in the future. 93 * TODO: Keep in sync with the string defined in TwelveKeyDialer.java in Contacts app 94 * until this is replaced with the ITelephony API. 95 */ 96 public static final String EXTRA_SEND_EMPTY_FLASH = 97 "com.android.phone.extra.SEND_EMPTY_FLASH"; 98 99 // Dialog IDs 100 private static final int DIALOG_NOT_VOICE_CAPABLE = 1; 101 102 /** Note message codes < 100 are reserved for the PhoneApp. */ 103 private static final int EVENT_OUTGOING_CALL_TIMEOUT = 101; 104 private static final int EVENT_DELAYED_FINISH = 102; 105 106 private static final int OUTGOING_CALL_TIMEOUT_THRESHOLD = 2000; // msec 107 private static final int DELAYED_FINISH_TIME = 2000; // msec 108 109 /** 110 * ProgressBar object with "spinner" style, which will be shown if we take more than 111 * {@link #EVENT_OUTGOING_CALL_TIMEOUT} msec to handle the incoming Intent. 112 */ 113 private ProgressBar mWaitingSpinner; 114 private final Handler mHandler = new Handler() { 115 @Override 116 public void handleMessage(Message msg) { 117 if (msg.what == EVENT_OUTGOING_CALL_TIMEOUT) { 118 Log.i(TAG, "Outgoing call takes too long. Showing the spinner."); 119 mWaitingSpinner.setVisibility(View.VISIBLE); 120 } else if (msg.what == EVENT_DELAYED_FINISH) { 121 finish(); 122 } else { 123 Log.wtf(TAG, "Unknown message id: " + msg.what); 124 } 125 } 126 }; 127 128 /** 129 * Starts the delayed finish() of OutgoingCallBroadcaster in order to give the UI 130 * some time to start up. 131 */ 132 private void startDelayedFinish() { 133 mHandler.sendEmptyMessageDelayed(EVENT_DELAYED_FINISH, DELAYED_FINISH_TIME); 134 } 135 136 /** 137 * OutgoingCallReceiver finishes NEW_OUTGOING_CALL broadcasts, starting 138 * the InCallScreen if the broadcast has not been canceled, possibly with 139 * a modified phone number and optional provider info (uri + package name + remote views.) 140 */ 141 public class OutgoingCallReceiver extends BroadcastReceiver { 142 private static final String TAG = "OutgoingCallReceiver"; 143 144 @Override 145 public void onReceive(Context context, Intent intent) { 146 mHandler.removeMessages(EVENT_OUTGOING_CALL_TIMEOUT); 147 final boolean isAttemptingCall = doReceive(context, intent); 148 if (DBG) Log.v(TAG, "OutgoingCallReceiver is going to finish the Activity itself."); 149 150 // We cannot finish the activity immediately here because it would cause the temporary 151 // black screen of OutgoingBroadcaster to go away and we need it to stay up until the 152 // UI (in a different process) has time to come up. 153 // However, if we know we are not attemping a call, we need to finish the activity 154 // immediately so that subsequent CALL intents will retrigger a new 155 // OutgoingCallReceiver. see b/10857203 156 if (isAttemptingCall) { 157 startDelayedFinish(); 158 } else { 159 finish(); 160 } 161 } 162 163 164 /** 165 * Handes receipt of ordered new_outgoing_call intent. Verifies that the return from the 166 * ordered intent is valid. 167 * @return true if the call is being attempted; false if we are canceling the call. 168 */ 169 public boolean doReceive(Context context, Intent intent) { 170 if (DBG) Log.v(TAG, "doReceive: " + intent); 171 172 boolean alreadyCalled; 173 String number; 174 String originalUri; 175 176 alreadyCalled = intent.getBooleanExtra( 177 OutgoingCallBroadcaster.EXTRA_ALREADY_CALLED, false); 178 if (alreadyCalled) { 179 if (DBG) Log.v(TAG, "CALL already placed -- returning."); 180 return false; 181 } 182 183 // Once the NEW_OUTGOING_CALL broadcast is finished, the resultData 184 // is used as the actual number to call. (If null, no call will be 185 // placed.) 186 187 number = getResultData(); 188 if (VDBG) Log.v(TAG, "- got number from resultData: '" + number + "'"); 189 190 final PhoneGlobals app = PhoneGlobals.getInstance(); 191 final Phone phone = PhoneGlobals.getPhone(); 192 193 if (number == null) { 194 if (DBG) Log.v(TAG, "CALL cancelled (null number), returning..."); 195 return false; 196 } else if (TelephonyCapabilities.supportsOtasp(phone) 197 && (phone.getState() != PhoneConstants.State.IDLE) 198 && (phone.isOtaSpNumber(number))) { 199 if (DBG) Log.v(TAG, "Call is active, a 2nd OTA call cancelled -- returning."); 200 return false; 201 } else if (PhoneNumberUtils.isPotentialLocalEmergencyNumber(context, number)) { 202 // Just like 3rd-party apps aren't allowed to place emergency 203 // calls via the ACTION_CALL intent, we also don't allow 3rd 204 // party apps to use the NEW_OUTGOING_CALL broadcast to rewrite 205 // an outgoing call into an emergency number. 206 Log.w(TAG, "Cannot modify outgoing call to emergency number " + number + "."); 207 return false; 208 } 209 210 originalUri = intent.getStringExtra( 211 OutgoingCallBroadcaster.EXTRA_ORIGINAL_URI); 212 if (originalUri == null) { 213 Log.e(TAG, "Intent is missing EXTRA_ORIGINAL_URI -- returning."); 214 return false; 215 } 216 217 Uri uri = Uri.parse(originalUri); 218 219 // We already called convertKeypadLettersToDigits() and 220 // stripSeparators() way back in onCreate(), before we sent out the 221 // NEW_OUTGOING_CALL broadcast. But we need to do it again here 222 // too, since the number might have been modified/rewritten during 223 // the broadcast (and may now contain letters or separators again.) 224 number = PhoneNumberUtils.convertKeypadLettersToDigits(number); 225 number = PhoneNumberUtils.stripSeparators(number); 226 227 if (DBG) Log.v(TAG, "doReceive: proceeding with call..."); 228 if (VDBG) Log.v(TAG, "- uri: " + uri); 229 if (VDBG) Log.v(TAG, "- actual number to dial: '" + number + "'"); 230 231 startSipCallOptionHandler(context, intent, uri, number); 232 233 return true; 234 } 235 } 236 237 /** 238 * Launch the SipCallOptionHandler, which is the next step(*) in the 239 * outgoing-call sequence after the outgoing call broadcast is 240 * complete. 241 * 242 * (*) We now know exactly what phone number we need to dial, so the next 243 * step is for the SipCallOptionHandler to decide which Phone type (SIP 244 * or PSTN) should be used. (Depending on the user's preferences, this 245 * decision may also involve popping up a dialog to ask the user to 246 * choose what type of call this should be.) 247 * 248 * @param context used for the startActivity() call 249 * 250 * @param intent the intent from the previous step of the outgoing-call 251 * sequence. Normally this will be the NEW_OUTGOING_CALL broadcast intent 252 * that came in to the OutgoingCallReceiver, although it can also be the 253 * original ACTION_CALL intent that started the whole sequence (in cases 254 * where we don't do the NEW_OUTGOING_CALL broadcast at all, like for 255 * emergency numbers or SIP addresses). 256 * 257 * @param uri the data URI from the original CALL intent, presumably either 258 * a tel: or sip: URI. For tel: URIs, note that the scheme-specific part 259 * does *not* necessarily have separators and keypad letters stripped (so 260 * we might see URIs like "tel:(650)%20555-1234" or "tel:1-800-GOOG-411" 261 * here.) 262 * 263 * @param number the actual number (or SIP address) to dial. This is 264 * guaranteed to be either a PSTN phone number with separators stripped 265 * out and keypad letters converted to digits (like "16505551234"), or a 266 * raw SIP address (like "user (at) example.com"). 267 */ 268 private void startSipCallOptionHandler(Context context, Intent intent, 269 Uri uri, String number) { 270 // TODO: Remove this code. 271 } 272 273 /** 274 * This method is the single point of entry for the CALL intent, which is used (by built-in 275 * apps like Contacts / Dialer, as well as 3rd-party apps) to initiate an outgoing voice call. 276 * 277 * 278 */ 279 @Override 280 protected void onCreate(Bundle icicle) { 281 super.onCreate(icicle); 282 setContentView(R.layout.outgoing_call_broadcaster); 283 mWaitingSpinner = (ProgressBar) findViewById(R.id.spinner); 284 285 Intent intent = getIntent(); 286 if (DBG) { 287 final Configuration configuration = getResources().getConfiguration(); 288 Log.v(TAG, "onCreate: this = " + this + ", icicle = " + icicle); 289 Log.v(TAG, " - getIntent() = " + intent); 290 Log.v(TAG, " - configuration = " + configuration); 291 } 292 293 if (icicle != null) { 294 // A non-null icicle means that this activity is being 295 // re-initialized after previously being shut down. 296 // 297 // In practice this happens very rarely (because the lifetime 298 // of this activity is so short!), but it *can* happen if the 299 // framework detects a configuration change at exactly the 300 // right moment; see bug 2202413. 301 // 302 // In this case, do nothing. Our onCreate() method has already 303 // run once (with icicle==null the first time), which means 304 // that the NEW_OUTGOING_CALL broadcast for this new call has 305 // already been sent. 306 Log.i(TAG, "onCreate: non-null icicle! " 307 + "Bailing out, not sending NEW_OUTGOING_CALL broadcast..."); 308 309 // No need to finish() here, since the OutgoingCallReceiver from 310 // our original instance will do that. (It'll actually call 311 // finish() on our original instance, which apparently works fine 312 // even though the ActivityManager has already shut that instance 313 // down. And note that if we *do* call finish() here, that just 314 // results in an "ActivityManager: Duplicate finish request" 315 // warning when the OutgoingCallReceiver runs.) 316 317 return; 318 } 319 320 processIntent(intent); 321 322 // isFinishing() return false when 1. broadcast is still ongoing, or 2. dialog is being 323 // shown. Otherwise finish() is called inside processIntent(), is isFinishing() here will 324 // return true. 325 if (DBG) Log.v(TAG, "At the end of onCreate(). isFinishing(): " + isFinishing()); 326 } 327 328 /** 329 * Interprets a given Intent and starts something relevant to the Intent. 330 * 331 * This method will handle three kinds of actions: 332 * 333 * - CALL (action for usual outgoing voice calls) 334 * - CALL_PRIVILEGED (can come from built-in apps like contacts / voice dialer / bluetooth) 335 * - CALL_EMERGENCY (from the EmergencyDialer that's reachable from the lockscreen.) 336 * 337 * The exact behavior depends on the intent's data: 338 * 339 * - The most typical is a tel: URI, which we handle by starting the 340 * NEW_OUTGOING_CALL broadcast. That broadcast eventually triggers 341 * the sequence OutgoingCallReceiver -> SipCallOptionHandler -> 342 * InCallScreen. 343 * 344 * - Or, with a sip: URI we skip the NEW_OUTGOING_CALL broadcast and 345 * go directly to SipCallOptionHandler, which then leads to the 346 * InCallScreen. 347 * 348 * - voicemail: URIs take the same path as regular tel: URIs. 349 * 350 * Other special cases: 351 * 352 * - Outgoing calls are totally disallowed on non-voice-capable 353 * devices (see handleNonVoiceCapable()). 354 * 355 * - A CALL intent with the EXTRA_SEND_EMPTY_FLASH extra (and 356 * presumably no data at all) means "send an empty flash" (which 357 * is only meaningful on CDMA devices while a call is already 358 * active.) 359 * 360 */ 361 private void processIntent(Intent intent) { 362 if (DBG) { 363 Log.v(TAG, "processIntent() = " + intent + ", thread: " + Thread.currentThread()); 364 } 365 final Configuration configuration = getResources().getConfiguration(); 366 367 // Outgoing phone calls are only allowed on "voice-capable" devices. 368 if (!PhoneGlobals.sVoiceCapable) { 369 Log.i(TAG, "This device is detected as non-voice-capable device."); 370 handleNonVoiceCapable(intent); 371 return; 372 } 373 374 String action = intent.getAction(); 375 String number = PhoneNumberUtils.getNumberFromIntent(intent, this); 376 // Check the number, don't convert for sip uri 377 // TODO put uriNumber under PhoneNumberUtils 378 if (number != null) { 379 if (!PhoneNumberUtils.isUriNumber(number)) { 380 number = PhoneNumberUtils.convertKeypadLettersToDigits(number); 381 number = PhoneNumberUtils.stripSeparators(number); 382 } 383 } else { 384 Log.w(TAG, "The number obtained from Intent is null."); 385 } 386 387 AppOpsManager appOps = (AppOpsManager)getSystemService(Context.APP_OPS_SERVICE); 388 int launchedFromUid; 389 String launchedFromPackage; 390 try { 391 launchedFromUid = ActivityManager.getService().getLaunchedFromUid( 392 getActivityToken()); 393 launchedFromPackage = ActivityManager.getService().getLaunchedFromPackage( 394 getActivityToken()); 395 } catch (RemoteException e) { 396 launchedFromUid = -1; 397 launchedFromPackage = null; 398 } 399 if (appOps.noteOpNoThrow(AppOpsManager.OP_CALL_PHONE, launchedFromUid, launchedFromPackage) 400 != AppOpsManager.MODE_ALLOWED) { 401 Log.w(TAG, "Rejecting call from uid " + launchedFromUid + " package " 402 + launchedFromPackage); 403 finish(); 404 return; 405 } 406 407 // If true, this flag will indicate that the current call is a special kind 408 // of call (most likely an emergency number) that 3rd parties aren't allowed 409 // to intercept or affect in any way. (In that case, we start the call 410 // immediately rather than going through the NEW_OUTGOING_CALL sequence.) 411 boolean callNow; 412 413 if (getClass().getName().equals(intent.getComponent().getClassName())) { 414 // If we were launched directly from the OutgoingCallBroadcaster, 415 // not one of its more privileged aliases, then make sure that 416 // only the non-privileged actions are allowed. 417 if (!Intent.ACTION_CALL.equals(intent.getAction())) { 418 Log.w(TAG, "Attempt to deliver non-CALL action; forcing to CALL"); 419 intent.setAction(Intent.ACTION_CALL); 420 } 421 } 422 423 // Check whether or not this is an emergency number, in order to 424 // enforce the restriction that only the CALL_PRIVILEGED and 425 // CALL_EMERGENCY intents are allowed to make emergency calls. 426 // 427 // (Note that the ACTION_CALL check below depends on the result of 428 // isPotentialLocalEmergencyNumber() rather than just plain 429 // isLocalEmergencyNumber(), to be 100% certain that we *don't* 430 // allow 3rd party apps to make emergency calls by passing in an 431 // "invalid" number like "9111234" that isn't technically an 432 // emergency number but might still result in an emergency call 433 // with some networks.) 434 final boolean isExactEmergencyNumber = 435 (number != null) && PhoneNumberUtils.isLocalEmergencyNumber(this, number); 436 final boolean isPotentialEmergencyNumber = 437 (number != null) && PhoneNumberUtils.isPotentialLocalEmergencyNumber(this, number); 438 if (VDBG) { 439 Log.v(TAG, " - Checking restrictions for number '" + number + "':"); 440 Log.v(TAG, " isExactEmergencyNumber = " + isExactEmergencyNumber); 441 Log.v(TAG, " isPotentialEmergencyNumber = " + isPotentialEmergencyNumber); 442 } 443 444 /* Change CALL_PRIVILEGED into CALL or CALL_EMERGENCY as needed. */ 445 // TODO: This code is redundant with some code in InCallScreen: refactor. 446 if (Intent.ACTION_CALL_PRIVILEGED.equals(action)) { 447 // We're handling a CALL_PRIVILEGED intent, so we know this request came 448 // from a trusted source (like the built-in dialer.) So even a number 449 // that's *potentially* an emergency number can safely be promoted to 450 // CALL_EMERGENCY (since we *should* allow you to dial "91112345" from 451 // the dialer if you really want to.) 452 if (isPotentialEmergencyNumber) { 453 Log.i(TAG, "ACTION_CALL_PRIVILEGED is used while the number is a potential" 454 + " emergency number. Use ACTION_CALL_EMERGENCY as an action instead."); 455 action = Intent.ACTION_CALL_EMERGENCY; 456 } else { 457 action = Intent.ACTION_CALL; 458 } 459 if (DBG) Log.v(TAG, " - updating action from CALL_PRIVILEGED to " + action); 460 intent.setAction(action); 461 } 462 463 if (Intent.ACTION_CALL.equals(action)) { 464 if (isPotentialEmergencyNumber) { 465 Log.w(TAG, "Cannot call potential emergency number '" + number 466 + "' with CALL Intent " + intent + "."); 467 Log.i(TAG, "Launching default dialer instead..."); 468 469 Intent invokeFrameworkDialer = new Intent(); 470 471 // TwelveKeyDialer is in a tab so we really want 472 // DialtactsActivity. Build the intent 'manually' to 473 // use the java resolver to find the dialer class (as 474 // opposed to a Context which look up known android 475 // packages only) 476 final Resources resources = getResources(); 477 invokeFrameworkDialer.setClassName( 478 resources.getString(R.string.ui_default_package), 479 resources.getString(R.string.dialer_default_class)); 480 invokeFrameworkDialer.setAction(Intent.ACTION_DIAL); 481 invokeFrameworkDialer.setData(intent.getData()); 482 if (DBG) Log.v(TAG, "onCreate(): calling startActivity for Dialer: " 483 + invokeFrameworkDialer); 484 startActivity(invokeFrameworkDialer); 485 finish(); 486 return; 487 } 488 callNow = false; 489 } else if (Intent.ACTION_CALL_EMERGENCY.equals(action)) { 490 // ACTION_CALL_EMERGENCY case: this is either a CALL_PRIVILEGED 491 // intent that we just turned into a CALL_EMERGENCY intent (see 492 // above), or else it really is an CALL_EMERGENCY intent that 493 // came directly from some other app (e.g. the EmergencyDialer 494 // activity built in to the Phone app.) 495 // Make sure it's at least *possible* that this is really an 496 // emergency number. 497 if (!isPotentialEmergencyNumber) { 498 Log.w(TAG, "Cannot call non-potential-emergency number " + number 499 + " with EMERGENCY_CALL Intent " + intent + "." 500 + " Finish the Activity immediately."); 501 finish(); 502 return; 503 } 504 callNow = true; 505 } else { 506 Log.e(TAG, "Unhandled Intent " + intent + ". Finish the Activity immediately."); 507 finish(); 508 return; 509 } 510 511 // Make sure the screen is turned on. This is probably the right 512 // thing to do, and more importantly it works around an issue in the 513 // activity manager where we will not launch activities consistently 514 // when the screen is off (since it is trying to keep them paused 515 // and has... issues). 516 // 517 // Also, this ensures the device stays awake while doing the following 518 // broadcast; technically we should be holding a wake lock here 519 // as well. 520 PhoneGlobals.getInstance().wakeUpScreen(); 521 522 // If number is null, we're probably trying to call a non-existent voicemail number, 523 // send an empty flash or something else is fishy. Whatever the problem, there's no 524 // number, so there's no point in allowing apps to modify the number. 525 if (TextUtils.isEmpty(number)) { 526 if (intent.getBooleanExtra(EXTRA_SEND_EMPTY_FLASH, false)) { 527 Log.i(TAG, "onCreate: SEND_EMPTY_FLASH..."); 528 PhoneUtils.sendEmptyFlash(PhoneGlobals.getPhone()); 529 finish(); 530 return; 531 } else { 532 Log.i(TAG, "onCreate: null or empty number, setting callNow=true..."); 533 callNow = true; 534 } 535 } 536 537 if (callNow) { 538 // This is a special kind of call (most likely an emergency number) 539 // that 3rd parties aren't allowed to intercept or affect in any way. 540 // So initiate the outgoing call immediately. 541 542 Log.i(TAG, "onCreate(): callNow case! Calling placeCall(): " + intent); 543 544 // Initiate the outgoing call, and simultaneously launch the 545 // InCallScreen to display the in-call UI: 546 PhoneGlobals.getInstance().callController.placeCall(intent); 547 548 // Note we do *not* "return" here, but instead continue and 549 // send the ACTION_NEW_OUTGOING_CALL broadcast like for any 550 // other outgoing call. (But when the broadcast finally 551 // reaches the OutgoingCallReceiver, we'll know not to 552 // initiate the call again because of the presence of the 553 // EXTRA_ALREADY_CALLED extra.) 554 } 555 556 // For now, SIP calls will be processed directly without a 557 // NEW_OUTGOING_CALL broadcast. 558 // 559 // TODO: In the future, though, 3rd party apps *should* be allowed to 560 // intercept outgoing calls to SIP addresses as well. To do this, we should 561 // (1) update the NEW_OUTGOING_CALL intent documentation to explain this 562 // case, and (2) pass the outgoing SIP address by *not* overloading the 563 // EXTRA_PHONE_NUMBER extra, but instead using a new separate extra to hold 564 // the outgoing SIP address. (Be sure to document whether it's a URI or just 565 // a plain address, whether it could be a tel: URI, etc.) 566 Uri uri = intent.getData(); 567 String scheme = uri.getScheme(); 568 if (PhoneAccount.SCHEME_SIP.equals(scheme) || PhoneNumberUtils.isUriNumber(number)) { 569 Log.i(TAG, "The requested number was detected as SIP call."); 570 startSipCallOptionHandler(this, intent, uri, number); 571 finish(); 572 return; 573 574 // TODO: if there's ever a way for SIP calls to trigger a 575 // "callNow=true" case (see above), we'll need to handle that 576 // case here too (most likely by just doing nothing at all.) 577 } 578 579 Intent broadcastIntent = new Intent(Intent.ACTION_NEW_OUTGOING_CALL); 580 if (number != null) { 581 broadcastIntent.putExtra(Intent.EXTRA_PHONE_NUMBER, number); 582 } 583 CallGatewayManager.checkAndCopyPhoneProviderExtras(intent, broadcastIntent); 584 broadcastIntent.putExtra(EXTRA_ALREADY_CALLED, callNow); 585 broadcastIntent.putExtra(EXTRA_ORIGINAL_URI, uri.toString()); 586 // Need to raise foreground in-call UI as soon as possible while allowing 3rd party app 587 // to intercept the outgoing call. 588 broadcastIntent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 589 if (DBG) Log.v(TAG, " - Broadcasting intent: " + broadcastIntent + "."); 590 591 // Set a timer so that we can prepare for unexpected delay introduced by the broadcast. 592 // If it takes too much time, the timer will show "waiting" spinner. 593 // This message will be removed when OutgoingCallReceiver#onReceive() is called before the 594 // timeout. 595 mHandler.sendEmptyMessageDelayed(EVENT_OUTGOING_CALL_TIMEOUT, 596 OUTGOING_CALL_TIMEOUT_THRESHOLD); 597 sendOrderedBroadcastAsUser(broadcastIntent, UserHandle.SYSTEM, 598 android.Manifest.permission.PROCESS_OUTGOING_CALLS, 599 AppOpsManager.OP_PROCESS_OUTGOING_CALLS, 600 new OutgoingCallReceiver(), 601 null, // scheduler 602 Activity.RESULT_OK, // initialCode 603 number, // initialData: initial value for the result data 604 null); // initialExtras 605 } 606 607 @Override 608 protected void onStop() { 609 // Clean up (and dismiss if necessary) any managed dialogs. 610 // 611 // We don't do this in onPause() since we can be paused/resumed 612 // due to orientation changes (in which case we don't want to 613 // disturb the dialog), but we *do* need it here in onStop() to be 614 // sure we clean up if the user hits HOME while the dialog is up. 615 // 616 // Note it's safe to call removeDialog() even if there's no dialog 617 // associated with that ID. 618 removeDialog(DIALOG_NOT_VOICE_CAPABLE); 619 620 super.onStop(); 621 } 622 623 /** 624 * Handle the specified CALL or CALL_* intent on a non-voice-capable 625 * device. 626 * 627 * This method may launch a different intent (if there's some useful 628 * alternative action to take), or otherwise display an error dialog, 629 * and in either case will finish() the current activity when done. 630 */ 631 private void handleNonVoiceCapable(Intent intent) { 632 if (DBG) Log.v(TAG, "handleNonVoiceCapable: handling " + intent 633 + " on non-voice-capable device..."); 634 635 // Just show a generic "voice calling not supported" dialog. 636 showDialog(DIALOG_NOT_VOICE_CAPABLE); 637 // ...and we'll eventually finish() when the user dismisses 638 // or cancels the dialog. 639 } 640 641 @Override 642 protected Dialog onCreateDialog(int id) { 643 Dialog dialog; 644 switch(id) { 645 case DIALOG_NOT_VOICE_CAPABLE: 646 dialog = new AlertDialog.Builder(this) 647 .setTitle(R.string.not_voice_capable) 648 .setIconAttribute(android.R.attr.alertDialogIcon) 649 .setPositiveButton(android.R.string.ok, this) 650 .setOnCancelListener(this) 651 .create(); 652 break; 653 default: 654 Log.w(TAG, "onCreateDialog: unexpected ID " + id); 655 dialog = null; 656 break; 657 } 658 return dialog; 659 } 660 661 /** DialogInterface.OnClickListener implementation */ 662 @Override 663 public void onClick(DialogInterface dialog, int id) { 664 // DIALOG_NOT_VOICE_CAPABLE is the only dialog we ever use (so far 665 // at least), and its only button is "OK". 666 finish(); 667 } 668 669 /** DialogInterface.OnCancelListener implementation */ 670 @Override 671 public void onCancel(DialogInterface dialog) { 672 // DIALOG_NOT_VOICE_CAPABLE is the only dialog we ever use (so far 673 // at least), and canceling it is just like hitting "OK". 674 finish(); 675 } 676 677 /** 678 * Implement onConfigurationChanged() purely for debugging purposes, 679 * to make sure that the android:configChanges element in our manifest 680 * is working properly. 681 */ 682 @Override 683 public void onConfigurationChanged(Configuration newConfig) { 684 super.onConfigurationChanged(newConfig); 685 if (DBG) Log.v(TAG, "onConfigurationChanged: newConfig = " + newConfig); 686 } 687 } 688
