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.ActivityManagerNative; 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 // OTASP-specific checks. 194 // TODO: This should probably all happen in 195 // OutgoingCallBroadcaster.onCreate(), since there's no reason to 196 // even bother with the NEW_OUTGOING_CALL broadcast if we're going 197 // to disallow the outgoing call anyway... 198 if (TelephonyCapabilities.supportsOtasp(phone)) { 199 boolean activateState = (app.cdmaOtaScreenState.otaScreenState 200 == OtaUtils.CdmaOtaScreenState.OtaScreenState.OTA_STATUS_ACTIVATION); 201 boolean dialogState = (app.cdmaOtaScreenState.otaScreenState 202 == OtaUtils.CdmaOtaScreenState.OtaScreenState 203 .OTA_STATUS_SUCCESS_FAILURE_DLG); 204 boolean isOtaCallActive = false; 205 206 // TODO: Need cleaner way to check if OTA is active. 207 // Also, this check seems to be broken in one obscure case: if 208 // you interrupt an OTASP call by pressing Back then Skip, 209 // otaScreenState somehow gets left in either PROGRESS or 210 // LISTENING. 211 if ((app.cdmaOtaScreenState.otaScreenState 212 == OtaUtils.CdmaOtaScreenState.OtaScreenState.OTA_STATUS_PROGRESS) 213 || (app.cdmaOtaScreenState.otaScreenState 214 == OtaUtils.CdmaOtaScreenState.OtaScreenState.OTA_STATUS_LISTENING)) { 215 isOtaCallActive = true; 216 } 217 218 if (activateState || dialogState) { 219 // The OTASP sequence is active, but either (1) the call 220 // hasn't started yet, or (2) the call has ended and we're 221 // showing the success/failure screen. In either of these 222 // cases it's OK to make a new outgoing call, but we need 223 // to take down any OTASP-related UI first. 224 if (dialogState) app.dismissOtaDialogs(); 225 app.clearOtaState(); 226 } else if (isOtaCallActive) { 227 // The actual OTASP call is active. Don't allow new 228 // outgoing calls at all from this state. 229 Log.w(TAG, "OTASP call is active: disallowing a new outgoing call."); 230 return false; 231 } 232 } 233 234 if (number == null) { 235 if (DBG) Log.v(TAG, "CALL cancelled (null number), returning..."); 236 return false; 237 } else if (TelephonyCapabilities.supportsOtasp(phone) 238 && (phone.getState() != PhoneConstants.State.IDLE) 239 && (phone.isOtaSpNumber(number))) { 240 if (DBG) Log.v(TAG, "Call is active, a 2nd OTA call cancelled -- returning."); 241 return false; 242 } else if (PhoneNumberUtils.isPotentialLocalEmergencyNumber(context, number)) { 243 // Just like 3rd-party apps aren't allowed to place emergency 244 // calls via the ACTION_CALL intent, we also don't allow 3rd 245 // party apps to use the NEW_OUTGOING_CALL broadcast to rewrite 246 // an outgoing call into an emergency number. 247 Log.w(TAG, "Cannot modify outgoing call to emergency number " + number + "."); 248 return false; 249 } 250 251 originalUri = intent.getStringExtra( 252 OutgoingCallBroadcaster.EXTRA_ORIGINAL_URI); 253 if (originalUri == null) { 254 Log.e(TAG, "Intent is missing EXTRA_ORIGINAL_URI -- returning."); 255 return false; 256 } 257 258 Uri uri = Uri.parse(originalUri); 259 260 // We already called convertKeypadLettersToDigits() and 261 // stripSeparators() way back in onCreate(), before we sent out the 262 // NEW_OUTGOING_CALL broadcast. But we need to do it again here 263 // too, since the number might have been modified/rewritten during 264 // the broadcast (and may now contain letters or separators again.) 265 number = PhoneNumberUtils.convertKeypadLettersToDigits(number); 266 number = PhoneNumberUtils.stripSeparators(number); 267 268 if (DBG) Log.v(TAG, "doReceive: proceeding with call..."); 269 if (VDBG) Log.v(TAG, "- uri: " + uri); 270 if (VDBG) Log.v(TAG, "- actual number to dial: '" + number + "'"); 271 272 startSipCallOptionHandler(context, intent, uri, number); 273 274 return true; 275 } 276 } 277 278 /** 279 * Launch the SipCallOptionHandler, which is the next step(*) in the 280 * outgoing-call sequence after the outgoing call broadcast is 281 * complete. 282 * 283 * (*) We now know exactly what phone number we need to dial, so the next 284 * step is for the SipCallOptionHandler to decide which Phone type (SIP 285 * or PSTN) should be used. (Depending on the user's preferences, this 286 * decision may also involve popping up a dialog to ask the user to 287 * choose what type of call this should be.) 288 * 289 * @param context used for the startActivity() call 290 * 291 * @param intent the intent from the previous step of the outgoing-call 292 * sequence. Normally this will be the NEW_OUTGOING_CALL broadcast intent 293 * that came in to the OutgoingCallReceiver, although it can also be the 294 * original ACTION_CALL intent that started the whole sequence (in cases 295 * where we don't do the NEW_OUTGOING_CALL broadcast at all, like for 296 * emergency numbers or SIP addresses). 297 * 298 * @param uri the data URI from the original CALL intent, presumably either 299 * a tel: or sip: URI. For tel: URIs, note that the scheme-specific part 300 * does *not* necessarily have separators and keypad letters stripped (so 301 * we might see URIs like "tel:(650)%20555-1234" or "tel:1-800-GOOG-411" 302 * here.) 303 * 304 * @param number the actual number (or SIP address) to dial. This is 305 * guaranteed to be either a PSTN phone number with separators stripped 306 * out and keypad letters converted to digits (like "16505551234"), or a 307 * raw SIP address (like "user (at) example.com"). 308 */ 309 private void startSipCallOptionHandler(Context context, Intent intent, 310 Uri uri, String number) { 311 // TODO: Remove this code. 312 } 313 314 /** 315 * This method is the single point of entry for the CALL intent, which is used (by built-in 316 * apps like Contacts / Dialer, as well as 3rd-party apps) to initiate an outgoing voice call. 317 * 318 * 319 */ 320 @Override 321 protected void onCreate(Bundle icicle) { 322 super.onCreate(icicle); 323 setContentView(R.layout.outgoing_call_broadcaster); 324 mWaitingSpinner = (ProgressBar) findViewById(R.id.spinner); 325 326 Intent intent = getIntent(); 327 if (DBG) { 328 final Configuration configuration = getResources().getConfiguration(); 329 Log.v(TAG, "onCreate: this = " + this + ", icicle = " + icicle); 330 Log.v(TAG, " - getIntent() = " + intent); 331 Log.v(TAG, " - configuration = " + configuration); 332 } 333 334 if (icicle != null) { 335 // A non-null icicle means that this activity is being 336 // re-initialized after previously being shut down. 337 // 338 // In practice this happens very rarely (because the lifetime 339 // of this activity is so short!), but it *can* happen if the 340 // framework detects a configuration change at exactly the 341 // right moment; see bug 2202413. 342 // 343 // In this case, do nothing. Our onCreate() method has already 344 // run once (with icicle==null the first time), which means 345 // that the NEW_OUTGOING_CALL broadcast for this new call has 346 // already been sent. 347 Log.i(TAG, "onCreate: non-null icicle! " 348 + "Bailing out, not sending NEW_OUTGOING_CALL broadcast..."); 349 350 // No need to finish() here, since the OutgoingCallReceiver from 351 // our original instance will do that. (It'll actually call 352 // finish() on our original instance, which apparently works fine 353 // even though the ActivityManager has already shut that instance 354 // down. And note that if we *do* call finish() here, that just 355 // results in an "ActivityManager: Duplicate finish request" 356 // warning when the OutgoingCallReceiver runs.) 357 358 return; 359 } 360 361 processIntent(intent); 362 363 // isFinishing() return false when 1. broadcast is still ongoing, or 2. dialog is being 364 // shown. Otherwise finish() is called inside processIntent(), is isFinishing() here will 365 // return true. 366 if (DBG) Log.v(TAG, "At the end of onCreate(). isFinishing(): " + isFinishing()); 367 } 368 369 /** 370 * Interprets a given Intent and starts something relevant to the Intent. 371 * 372 * This method will handle three kinds of actions: 373 * 374 * - CALL (action for usual outgoing voice calls) 375 * - CALL_PRIVILEGED (can come from built-in apps like contacts / voice dialer / bluetooth) 376 * - CALL_EMERGENCY (from the EmergencyDialer that's reachable from the lockscreen.) 377 * 378 * The exact behavior depends on the intent's data: 379 * 380 * - The most typical is a tel: URI, which we handle by starting the 381 * NEW_OUTGOING_CALL broadcast. That broadcast eventually triggers 382 * the sequence OutgoingCallReceiver -> SipCallOptionHandler -> 383 * InCallScreen. 384 * 385 * - Or, with a sip: URI we skip the NEW_OUTGOING_CALL broadcast and 386 * go directly to SipCallOptionHandler, which then leads to the 387 * InCallScreen. 388 * 389 * - voicemail: URIs take the same path as regular tel: URIs. 390 * 391 * Other special cases: 392 * 393 * - Outgoing calls are totally disallowed on non-voice-capable 394 * devices (see handleNonVoiceCapable()). 395 * 396 * - A CALL intent with the EXTRA_SEND_EMPTY_FLASH extra (and 397 * presumably no data at all) means "send an empty flash" (which 398 * is only meaningful on CDMA devices while a call is already 399 * active.) 400 * 401 */ 402 private void processIntent(Intent intent) { 403 if (DBG) { 404 Log.v(TAG, "processIntent() = " + intent + ", thread: " + Thread.currentThread()); 405 } 406 final Configuration configuration = getResources().getConfiguration(); 407 408 // Outgoing phone calls are only allowed on "voice-capable" devices. 409 if (!PhoneGlobals.sVoiceCapable) { 410 Log.i(TAG, "This device is detected as non-voice-capable device."); 411 handleNonVoiceCapable(intent); 412 return; 413 } 414 415 String action = intent.getAction(); 416 String number = PhoneNumberUtils.getNumberFromIntent(intent, this); 417 // Check the number, don't convert for sip uri 418 // TODO put uriNumber under PhoneNumberUtils 419 if (number != null) { 420 if (!PhoneNumberUtils.isUriNumber(number)) { 421 number = PhoneNumberUtils.convertKeypadLettersToDigits(number); 422 number = PhoneNumberUtils.stripSeparators(number); 423 } 424 } else { 425 Log.w(TAG, "The number obtained from Intent is null."); 426 } 427 428 AppOpsManager appOps = (AppOpsManager)getSystemService(Context.APP_OPS_SERVICE); 429 int launchedFromUid; 430 String launchedFromPackage; 431 try { 432 launchedFromUid = ActivityManagerNative.getDefault().getLaunchedFromUid( 433 getActivityToken()); 434 launchedFromPackage = ActivityManagerNative.getDefault().getLaunchedFromPackage( 435 getActivityToken()); 436 } catch (RemoteException e) { 437 launchedFromUid = -1; 438 launchedFromPackage = null; 439 } 440 if (appOps.noteOpNoThrow(AppOpsManager.OP_CALL_PHONE, launchedFromUid, launchedFromPackage) 441 != AppOpsManager.MODE_ALLOWED) { 442 Log.w(TAG, "Rejecting call from uid " + launchedFromUid + " package " 443 + launchedFromPackage); 444 finish(); 445 return; 446 } 447 448 // If true, this flag will indicate that the current call is a special kind 449 // of call (most likely an emergency number) that 3rd parties aren't allowed 450 // to intercept or affect in any way. (In that case, we start the call 451 // immediately rather than going through the NEW_OUTGOING_CALL sequence.) 452 boolean callNow; 453 454 if (getClass().getName().equals(intent.getComponent().getClassName())) { 455 // If we were launched directly from the OutgoingCallBroadcaster, 456 // not one of its more privileged aliases, then make sure that 457 // only the non-privileged actions are allowed. 458 if (!Intent.ACTION_CALL.equals(intent.getAction())) { 459 Log.w(TAG, "Attempt to deliver non-CALL action; forcing to CALL"); 460 intent.setAction(Intent.ACTION_CALL); 461 } 462 } 463 464 // Check whether or not this is an emergency number, in order to 465 // enforce the restriction that only the CALL_PRIVILEGED and 466 // CALL_EMERGENCY intents are allowed to make emergency calls. 467 // 468 // (Note that the ACTION_CALL check below depends on the result of 469 // isPotentialLocalEmergencyNumber() rather than just plain 470 // isLocalEmergencyNumber(), to be 100% certain that we *don't* 471 // allow 3rd party apps to make emergency calls by passing in an 472 // "invalid" number like "9111234" that isn't technically an 473 // emergency number but might still result in an emergency call 474 // with some networks.) 475 final boolean isExactEmergencyNumber = 476 (number != null) && PhoneNumberUtils.isLocalEmergencyNumber(this, number); 477 final boolean isPotentialEmergencyNumber = 478 (number != null) && PhoneNumberUtils.isPotentialLocalEmergencyNumber(this, number); 479 if (VDBG) { 480 Log.v(TAG, " - Checking restrictions for number '" + number + "':"); 481 Log.v(TAG, " isExactEmergencyNumber = " + isExactEmergencyNumber); 482 Log.v(TAG, " isPotentialEmergencyNumber = " + isPotentialEmergencyNumber); 483 } 484 485 /* Change CALL_PRIVILEGED into CALL or CALL_EMERGENCY as needed. */ 486 // TODO: This code is redundant with some code in InCallScreen: refactor. 487 if (Intent.ACTION_CALL_PRIVILEGED.equals(action)) { 488 // We're handling a CALL_PRIVILEGED intent, so we know this request came 489 // from a trusted source (like the built-in dialer.) So even a number 490 // that's *potentially* an emergency number can safely be promoted to 491 // CALL_EMERGENCY (since we *should* allow you to dial "91112345" from 492 // the dialer if you really want to.) 493 if (isPotentialEmergencyNumber) { 494 Log.i(TAG, "ACTION_CALL_PRIVILEGED is used while the number is a potential" 495 + " emergency number. Use ACTION_CALL_EMERGENCY as an action instead."); 496 action = Intent.ACTION_CALL_EMERGENCY; 497 } else { 498 action = Intent.ACTION_CALL; 499 } 500 if (DBG) Log.v(TAG, " - updating action from CALL_PRIVILEGED to " + action); 501 intent.setAction(action); 502 } 503 504 if (Intent.ACTION_CALL.equals(action)) { 505 if (isPotentialEmergencyNumber) { 506 Log.w(TAG, "Cannot call potential emergency number '" + number 507 + "' with CALL Intent " + intent + "."); 508 Log.i(TAG, "Launching default dialer instead..."); 509 510 Intent invokeFrameworkDialer = new Intent(); 511 512 // TwelveKeyDialer is in a tab so we really want 513 // DialtactsActivity. Build the intent 'manually' to 514 // use the java resolver to find the dialer class (as 515 // opposed to a Context which look up known android 516 // packages only) 517 final Resources resources = getResources(); 518 invokeFrameworkDialer.setClassName( 519 resources.getString(R.string.ui_default_package), 520 resources.getString(R.string.dialer_default_class)); 521 invokeFrameworkDialer.setAction(Intent.ACTION_DIAL); 522 invokeFrameworkDialer.setData(intent.getData()); 523 if (DBG) Log.v(TAG, "onCreate(): calling startActivity for Dialer: " 524 + invokeFrameworkDialer); 525 startActivity(invokeFrameworkDialer); 526 finish(); 527 return; 528 } 529 callNow = false; 530 } else if (Intent.ACTION_CALL_EMERGENCY.equals(action)) { 531 // ACTION_CALL_EMERGENCY case: this is either a CALL_PRIVILEGED 532 // intent that we just turned into a CALL_EMERGENCY intent (see 533 // above), or else it really is an CALL_EMERGENCY intent that 534 // came directly from some other app (e.g. the EmergencyDialer 535 // activity built in to the Phone app.) 536 // Make sure it's at least *possible* that this is really an 537 // emergency number. 538 if (!isPotentialEmergencyNumber) { 539 Log.w(TAG, "Cannot call non-potential-emergency number " + number 540 + " with EMERGENCY_CALL Intent " + intent + "." 541 + " Finish the Activity immediately."); 542 finish(); 543 return; 544 } 545 callNow = true; 546 } else { 547 Log.e(TAG, "Unhandled Intent " + intent + ". Finish the Activity immediately."); 548 finish(); 549 return; 550 } 551 552 // Make sure the screen is turned on. This is probably the right 553 // thing to do, and more importantly it works around an issue in the 554 // activity manager where we will not launch activities consistently 555 // when the screen is off (since it is trying to keep them paused 556 // and has... issues). 557 // 558 // Also, this ensures the device stays awake while doing the following 559 // broadcast; technically we should be holding a wake lock here 560 // as well. 561 PhoneGlobals.getInstance().wakeUpScreen(); 562 563 // If number is null, we're probably trying to call a non-existent voicemail number, 564 // send an empty flash or something else is fishy. Whatever the problem, there's no 565 // number, so there's no point in allowing apps to modify the number. 566 if (TextUtils.isEmpty(number)) { 567 if (intent.getBooleanExtra(EXTRA_SEND_EMPTY_FLASH, false)) { 568 Log.i(TAG, "onCreate: SEND_EMPTY_FLASH..."); 569 PhoneUtils.sendEmptyFlash(PhoneGlobals.getPhone()); 570 finish(); 571 return; 572 } else { 573 Log.i(TAG, "onCreate: null or empty number, setting callNow=true..."); 574 callNow = true; 575 } 576 } 577 578 if (callNow) { 579 // This is a special kind of call (most likely an emergency number) 580 // that 3rd parties aren't allowed to intercept or affect in any way. 581 // So initiate the outgoing call immediately. 582 583 Log.i(TAG, "onCreate(): callNow case! Calling placeCall(): " + intent); 584 585 // Initiate the outgoing call, and simultaneously launch the 586 // InCallScreen to display the in-call UI: 587 PhoneGlobals.getInstance().callController.placeCall(intent); 588 589 // Note we do *not* "return" here, but instead continue and 590 // send the ACTION_NEW_OUTGOING_CALL broadcast like for any 591 // other outgoing call. (But when the broadcast finally 592 // reaches the OutgoingCallReceiver, we'll know not to 593 // initiate the call again because of the presence of the 594 // EXTRA_ALREADY_CALLED extra.) 595 } 596 597 // For now, SIP calls will be processed directly without a 598 // NEW_OUTGOING_CALL broadcast. 599 // 600 // TODO: In the future, though, 3rd party apps *should* be allowed to 601 // intercept outgoing calls to SIP addresses as well. To do this, we should 602 // (1) update the NEW_OUTGOING_CALL intent documentation to explain this 603 // case, and (2) pass the outgoing SIP address by *not* overloading the 604 // EXTRA_PHONE_NUMBER extra, but instead using a new separate extra to hold 605 // the outgoing SIP address. (Be sure to document whether it's a URI or just 606 // a plain address, whether it could be a tel: URI, etc.) 607 Uri uri = intent.getData(); 608 String scheme = uri.getScheme(); 609 if (PhoneAccount.SCHEME_SIP.equals(scheme) || PhoneNumberUtils.isUriNumber(number)) { 610 Log.i(TAG, "The requested number was detected as SIP call."); 611 startSipCallOptionHandler(this, intent, uri, number); 612 finish(); 613 return; 614 615 // TODO: if there's ever a way for SIP calls to trigger a 616 // "callNow=true" case (see above), we'll need to handle that 617 // case here too (most likely by just doing nothing at all.) 618 } 619 620 Intent broadcastIntent = new Intent(Intent.ACTION_NEW_OUTGOING_CALL); 621 if (number != null) { 622 broadcastIntent.putExtra(Intent.EXTRA_PHONE_NUMBER, number); 623 } 624 CallGatewayManager.checkAndCopyPhoneProviderExtras(intent, broadcastIntent); 625 broadcastIntent.putExtra(EXTRA_ALREADY_CALLED, callNow); 626 broadcastIntent.putExtra(EXTRA_ORIGINAL_URI, uri.toString()); 627 // Need to raise foreground in-call UI as soon as possible while allowing 3rd party app 628 // to intercept the outgoing call. 629 broadcastIntent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 630 if (DBG) Log.v(TAG, " - Broadcasting intent: " + broadcastIntent + "."); 631 632 // Set a timer so that we can prepare for unexpected delay introduced by the broadcast. 633 // If it takes too much time, the timer will show "waiting" spinner. 634 // This message will be removed when OutgoingCallReceiver#onReceive() is called before the 635 // timeout. 636 mHandler.sendEmptyMessageDelayed(EVENT_OUTGOING_CALL_TIMEOUT, 637 OUTGOING_CALL_TIMEOUT_THRESHOLD); 638 sendOrderedBroadcastAsUser(broadcastIntent, UserHandle.SYSTEM, 639 android.Manifest.permission.PROCESS_OUTGOING_CALLS, 640 AppOpsManager.OP_PROCESS_OUTGOING_CALLS, 641 new OutgoingCallReceiver(), 642 null, // scheduler 643 Activity.RESULT_OK, // initialCode 644 number, // initialData: initial value for the result data 645 null); // initialExtras 646 } 647 648 @Override 649 protected void onStop() { 650 // Clean up (and dismiss if necessary) any managed dialogs. 651 // 652 // We don't do this in onPause() since we can be paused/resumed 653 // due to orientation changes (in which case we don't want to 654 // disturb the dialog), but we *do* need it here in onStop() to be 655 // sure we clean up if the user hits HOME while the dialog is up. 656 // 657 // Note it's safe to call removeDialog() even if there's no dialog 658 // associated with that ID. 659 removeDialog(DIALOG_NOT_VOICE_CAPABLE); 660 661 super.onStop(); 662 } 663 664 /** 665 * Handle the specified CALL or CALL_* intent on a non-voice-capable 666 * device. 667 * 668 * This method may launch a different intent (if there's some useful 669 * alternative action to take), or otherwise display an error dialog, 670 * and in either case will finish() the current activity when done. 671 */ 672 private void handleNonVoiceCapable(Intent intent) { 673 if (DBG) Log.v(TAG, "handleNonVoiceCapable: handling " + intent 674 + " on non-voice-capable device..."); 675 676 // Just show a generic "voice calling not supported" dialog. 677 showDialog(DIALOG_NOT_VOICE_CAPABLE); 678 // ...and we'll eventually finish() when the user dismisses 679 // or cancels the dialog. 680 } 681 682 @Override 683 protected Dialog onCreateDialog(int id) { 684 Dialog dialog; 685 switch(id) { 686 case DIALOG_NOT_VOICE_CAPABLE: 687 dialog = new AlertDialog.Builder(this) 688 .setTitle(R.string.not_voice_capable) 689 .setIconAttribute(android.R.attr.alertDialogIcon) 690 .setPositiveButton(android.R.string.ok, this) 691 .setOnCancelListener(this) 692 .create(); 693 break; 694 default: 695 Log.w(TAG, "onCreateDialog: unexpected ID " + id); 696 dialog = null; 697 break; 698 } 699 return dialog; 700 } 701 702 /** DialogInterface.OnClickListener implementation */ 703 @Override 704 public void onClick(DialogInterface dialog, int id) { 705 // DIALOG_NOT_VOICE_CAPABLE is the only dialog we ever use (so far 706 // at least), and its only button is "OK". 707 finish(); 708 } 709 710 /** DialogInterface.OnCancelListener implementation */ 711 @Override 712 public void onCancel(DialogInterface dialog) { 713 // DIALOG_NOT_VOICE_CAPABLE is the only dialog we ever use (so far 714 // at least), and canceling it is just like hitting "OK". 715 finish(); 716 } 717 718 /** 719 * Implement onConfigurationChanged() purely for debugging purposes, 720 * to make sure that the android:configChanges element in our manifest 721 * is working properly. 722 */ 723 @Override 724 public void onConfigurationChanged(Configuration newConfig) { 725 super.onConfigurationChanged(newConfig); 726 if (DBG) Log.v(TAG, "onConfigurationChanged: newConfig = " + newConfig); 727 } 728 } 729
