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