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.Binder; 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.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 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 */ startDelayedFinish()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 onReceive(Context context, Intent intent)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 */ doReceive(Context context, Intent intent)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(); 191 192 // OTASP-specific checks. 193 // TODO: This should probably all happen in 194 // OutgoingCallBroadcaster.onCreate(), since there's no reason to 195 // even bother with the NEW_OUTGOING_CALL broadcast if we're going 196 // to disallow the outgoing call anyway... 197 if (TelephonyCapabilities.supportsOtasp(app.phone)) { 198 boolean activateState = (app.cdmaOtaScreenState.otaScreenState 199 == OtaUtils.CdmaOtaScreenState.OtaScreenState.OTA_STATUS_ACTIVATION); 200 boolean dialogState = (app.cdmaOtaScreenState.otaScreenState 201 == OtaUtils.CdmaOtaScreenState.OtaScreenState 202 .OTA_STATUS_SUCCESS_FAILURE_DLG); 203 boolean isOtaCallActive = false; 204 205 // TODO: Need cleaner way to check if OTA is active. 206 // Also, this check seems to be broken in one obscure case: if 207 // you interrupt an OTASP call by pressing Back then Skip, 208 // otaScreenState somehow gets left in either PROGRESS or 209 // LISTENING. 210 if ((app.cdmaOtaScreenState.otaScreenState 211 == OtaUtils.CdmaOtaScreenState.OtaScreenState.OTA_STATUS_PROGRESS) 212 || (app.cdmaOtaScreenState.otaScreenState 213 == OtaUtils.CdmaOtaScreenState.OtaScreenState.OTA_STATUS_LISTENING)) { 214 isOtaCallActive = true; 215 } 216 217 if (activateState || dialogState) { 218 // The OTASP sequence is active, but either (1) the call 219 // hasn't started yet, or (2) the call has ended and we're 220 // showing the success/failure screen. In either of these 221 // cases it's OK to make a new outgoing call, but we need 222 // to take down any OTASP-related UI first. 223 if (dialogState) app.dismissOtaDialogs(); 224 app.clearOtaState(); 225 } else if (isOtaCallActive) { 226 // The actual OTASP call is active. Don't allow new 227 // outgoing calls at all from this state. 228 Log.w(TAG, "OTASP call is active: disallowing a new outgoing call."); 229 return false; 230 } 231 } 232 233 if (number == null) { 234 if (DBG) Log.v(TAG, "CALL cancelled (null number), returning..."); 235 return false; 236 } else if (TelephonyCapabilities.supportsOtasp(app.phone) 237 && (app.phone.getState() != PhoneConstants.State.IDLE) 238 && (app.phone.isOtaSpNumber(number))) { 239 if (DBG) Log.v(TAG, "Call is active, a 2nd OTA call cancelled -- returning."); 240 return false; 241 } else if (PhoneNumberUtils.isPotentialLocalEmergencyNumber(number, context)) { 242 // Just like 3rd-party apps aren't allowed to place emergency 243 // calls via the ACTION_CALL intent, we also don't allow 3rd 244 // party apps to use the NEW_OUTGOING_CALL broadcast to rewrite 245 // an outgoing call into an emergency number. 246 Log.w(TAG, "Cannot modify outgoing call to emergency number " + number + "."); 247 return false; 248 } 249 250 originalUri = intent.getStringExtra( 251 OutgoingCallBroadcaster.EXTRA_ORIGINAL_URI); 252 if (originalUri == null) { 253 Log.e(TAG, "Intent is missing EXTRA_ORIGINAL_URI -- returning."); 254 return false; 255 } 256 257 Uri uri = Uri.parse(originalUri); 258 259 // We already called convertKeypadLettersToDigits() and 260 // stripSeparators() way back in onCreate(), before we sent out the 261 // NEW_OUTGOING_CALL broadcast. But we need to do it again here 262 // too, since the number might have been modified/rewritten during 263 // the broadcast (and may now contain letters or separators again.) 264 number = PhoneNumberUtils.convertKeypadLettersToDigits(number); 265 number = PhoneNumberUtils.stripSeparators(number); 266 267 if (DBG) Log.v(TAG, "doReceive: proceeding with call..."); 268 if (VDBG) Log.v(TAG, "- uri: " + uri); 269 if (VDBG) Log.v(TAG, "- actual number to dial: '" + number + "'"); 270 271 startSipCallOptionHandler(context, intent, uri, number); 272 273 return true; 274 } 275 } 276 277 /** 278 * Launch the SipCallOptionHandler, which is the next step(*) in the 279 * outgoing-call sequence after the outgoing call broadcast is 280 * complete. 281 * 282 * (*) We now know exactly what phone number we need to dial, so the next 283 * step is for the SipCallOptionHandler to decide which Phone type (SIP 284 * or PSTN) should be used. (Depending on the user's preferences, this 285 * decision may also involve popping up a dialog to ask the user to 286 * choose what type of call this should be.) 287 * 288 * @param context used for the startActivity() call 289 * 290 * @param intent the intent from the previous step of the outgoing-call 291 * sequence. Normally this will be the NEW_OUTGOING_CALL broadcast intent 292 * that came in to the OutgoingCallReceiver, although it can also be the 293 * original ACTION_CALL intent that started the whole sequence (in cases 294 * where we don't do the NEW_OUTGOING_CALL broadcast at all, like for 295 * emergency numbers or SIP addresses). 296 * 297 * @param uri the data URI from the original CALL intent, presumably either 298 * a tel: or sip: URI. For tel: URIs, note that the scheme-specific part 299 * does *not* necessarily have separators and keypad letters stripped (so 300 * we might see URIs like "tel:(650)%20555-1234" or "tel:1-800-GOOG-411" 301 * here.) 302 * 303 * @param number the actual number (or SIP address) to dial. This is 304 * guaranteed to be either a PSTN phone number with separators stripped 305 * out and keypad letters converted to digits (like "16505551234"), or a 306 * raw SIP address (like "user@example.com"). 307 */ startSipCallOptionHandler(Context context, Intent intent, Uri uri, String number)308 private void startSipCallOptionHandler(Context context, Intent intent, 309 Uri uri, String number) { 310 if (VDBG) { 311 Log.i(TAG, "startSipCallOptionHandler..."); 312 Log.i(TAG, "- intent: " + intent); 313 Log.i(TAG, "- uri: " + uri); 314 Log.i(TAG, "- number: " + number); 315 } 316 317 // Create a copy of the original CALL intent that started the whole 318 // outgoing-call sequence. This intent will ultimately be passed to 319 // CallController.placeCall() after the SipCallOptionHandler step. 320 321 Intent newIntent = new Intent(Intent.ACTION_CALL, uri); 322 newIntent.putExtra(EXTRA_ACTUAL_NUMBER_TO_DIAL, number); 323 CallGatewayManager.checkAndCopyPhoneProviderExtras(intent, newIntent); 324 325 // Finally, launch the SipCallOptionHandler, with the copy of the 326 // original CALL intent stashed away in the EXTRA_NEW_CALL_INTENT 327 // extra. 328 329 Intent selectPhoneIntent = new Intent(ACTION_SIP_SELECT_PHONE, uri); 330 selectPhoneIntent.setClass(context, SipCallOptionHandler.class); 331 selectPhoneIntent.putExtra(EXTRA_NEW_CALL_INTENT, newIntent); 332 selectPhoneIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 333 if (DBG) { 334 Log.v(TAG, "startSipCallOptionHandler(): " + 335 "calling startActivity: " + selectPhoneIntent); 336 } 337 context.startActivity(selectPhoneIntent); 338 // ...and see SipCallOptionHandler.onCreate() for the next step of the sequence. 339 } 340 341 /** 342 * This method is the single point of entry for the CALL intent, which is used (by built-in 343 * apps like Contacts / Dialer, as well as 3rd-party apps) to initiate an outgoing voice call. 344 * 345 * 346 */ 347 @Override onCreate(Bundle icicle)348 protected void onCreate(Bundle icicle) { 349 super.onCreate(icicle); 350 setContentView(R.layout.outgoing_call_broadcaster); 351 mWaitingSpinner = (ProgressBar) findViewById(R.id.spinner); 352 353 Intent intent = getIntent(); 354 if (DBG) { 355 final Configuration configuration = getResources().getConfiguration(); 356 Log.v(TAG, "onCreate: this = " + this + ", icicle = " + icicle); 357 Log.v(TAG, " - getIntent() = " + intent); 358 Log.v(TAG, " - configuration = " + configuration); 359 } 360 361 if (icicle != null) { 362 // A non-null icicle means that this activity is being 363 // re-initialized after previously being shut down. 364 // 365 // In practice this happens very rarely (because the lifetime 366 // of this activity is so short!), but it *can* happen if the 367 // framework detects a configuration change at exactly the 368 // right moment; see bug 2202413. 369 // 370 // In this case, do nothing. Our onCreate() method has already 371 // run once (with icicle==null the first time), which means 372 // that the NEW_OUTGOING_CALL broadcast for this new call has 373 // already been sent. 374 Log.i(TAG, "onCreate: non-null icicle! " 375 + "Bailing out, not sending NEW_OUTGOING_CALL broadcast..."); 376 377 // No need to finish() here, since the OutgoingCallReceiver from 378 // our original instance will do that. (It'll actually call 379 // finish() on our original instance, which apparently works fine 380 // even though the ActivityManager has already shut that instance 381 // down. And note that if we *do* call finish() here, that just 382 // results in an "ActivityManager: Duplicate finish request" 383 // warning when the OutgoingCallReceiver runs.) 384 385 return; 386 } 387 388 processIntent(intent); 389 390 // isFinishing() return false when 1. broadcast is still ongoing, or 2. dialog is being 391 // shown. Otherwise finish() is called inside processIntent(), is isFinishing() here will 392 // return true. 393 if (DBG) Log.v(TAG, "At the end of onCreate(). isFinishing(): " + isFinishing()); 394 } 395 396 /** 397 * Interprets a given Intent and starts something relevant to the Intent. 398 * 399 * This method will handle three kinds of actions: 400 * 401 * - CALL (action for usual outgoing voice calls) 402 * - CALL_PRIVILEGED (can come from built-in apps like contacts / voice dialer / bluetooth) 403 * - CALL_EMERGENCY (from the EmergencyDialer that's reachable from the lockscreen.) 404 * 405 * The exact behavior depends on the intent's data: 406 * 407 * - The most typical is a tel: URI, which we handle by starting the 408 * NEW_OUTGOING_CALL broadcast. That broadcast eventually triggers 409 * the sequence OutgoingCallReceiver -> SipCallOptionHandler -> 410 * InCallScreen. 411 * 412 * - Or, with a sip: URI we skip the NEW_OUTGOING_CALL broadcast and 413 * go directly to SipCallOptionHandler, which then leads to the 414 * InCallScreen. 415 * 416 * - voicemail: URIs take the same path as regular tel: URIs. 417 * 418 * Other special cases: 419 * 420 * - Outgoing calls are totally disallowed on non-voice-capable 421 * devices (see handleNonVoiceCapable()). 422 * 423 * - A CALL intent with the EXTRA_SEND_EMPTY_FLASH extra (and 424 * presumably no data at all) means "send an empty flash" (which 425 * is only meaningful on CDMA devices while a call is already 426 * active.) 427 * 428 */ processIntent(Intent intent)429 private void processIntent(Intent intent) { 430 if (DBG) { 431 Log.v(TAG, "processIntent() = " + intent + ", thread: " + Thread.currentThread()); 432 } 433 final Configuration configuration = getResources().getConfiguration(); 434 435 // Outgoing phone calls are only allowed on "voice-capable" devices. 436 if (!PhoneGlobals.sVoiceCapable) { 437 Log.i(TAG, "This device is detected as non-voice-capable device."); 438 handleNonVoiceCapable(intent); 439 return; 440 } 441 442 String action = intent.getAction(); 443 String number = PhoneNumberUtils.getNumberFromIntent(intent, this); 444 // Check the number, don't convert for sip uri 445 // TODO put uriNumber under PhoneNumberUtils 446 if (number != null) { 447 if (!PhoneNumberUtils.isUriNumber(number)) { 448 number = PhoneNumberUtils.convertKeypadLettersToDigits(number); 449 number = PhoneNumberUtils.stripSeparators(number); 450 } 451 } else { 452 Log.w(TAG, "The number obtained from Intent is null."); 453 } 454 455 AppOpsManager appOps = (AppOpsManager)getSystemService(Context.APP_OPS_SERVICE); 456 int launchedFromUid; 457 String launchedFromPackage; 458 try { 459 launchedFromUid = ActivityManagerNative.getDefault().getLaunchedFromUid( 460 getActivityToken()); 461 launchedFromPackage = ActivityManagerNative.getDefault().getLaunchedFromPackage( 462 getActivityToken()); 463 } catch (RemoteException e) { 464 launchedFromUid = -1; 465 launchedFromPackage = null; 466 } 467 if (appOps.noteOpNoThrow(AppOpsManager.OP_CALL_PHONE, launchedFromUid, launchedFromPackage) 468 != AppOpsManager.MODE_ALLOWED) { 469 Log.w(TAG, "Rejecting call from uid " + launchedFromUid + " package " 470 + launchedFromPackage); 471 finish(); 472 return; 473 } 474 475 // If true, this flag will indicate that the current call is a special kind 476 // of call (most likely an emergency number) that 3rd parties aren't allowed 477 // to intercept or affect in any way. (In that case, we start the call 478 // immediately rather than going through the NEW_OUTGOING_CALL sequence.) 479 boolean callNow; 480 481 if (getClass().getName().equals(intent.getComponent().getClassName())) { 482 // If we were launched directly from the OutgoingCallBroadcaster, 483 // not one of its more privileged aliases, then make sure that 484 // only the non-privileged actions are allowed. 485 if (!Intent.ACTION_CALL.equals(intent.getAction())) { 486 Log.w(TAG, "Attempt to deliver non-CALL action; forcing to CALL"); 487 intent.setAction(Intent.ACTION_CALL); 488 } 489 } 490 491 // Check whether or not this is an emergency number, in order to 492 // enforce the restriction that only the CALL_PRIVILEGED and 493 // CALL_EMERGENCY intents are allowed to make emergency calls. 494 // 495 // (Note that the ACTION_CALL check below depends on the result of 496 // isPotentialLocalEmergencyNumber() rather than just plain 497 // isLocalEmergencyNumber(), to be 100% certain that we *don't* 498 // allow 3rd party apps to make emergency calls by passing in an 499 // "invalid" number like "9111234" that isn't technically an 500 // emergency number but might still result in an emergency call 501 // with some networks.) 502 final boolean isExactEmergencyNumber = 503 (number != null) && PhoneNumberUtils.isLocalEmergencyNumber(number, this); 504 final boolean isPotentialEmergencyNumber = 505 (number != null) && PhoneNumberUtils.isPotentialLocalEmergencyNumber(number, this); 506 if (VDBG) { 507 Log.v(TAG, " - Checking restrictions for number '" + number + "':"); 508 Log.v(TAG, " isExactEmergencyNumber = " + isExactEmergencyNumber); 509 Log.v(TAG, " isPotentialEmergencyNumber = " + isPotentialEmergencyNumber); 510 } 511 512 /* Change CALL_PRIVILEGED into CALL or CALL_EMERGENCY as needed. */ 513 // TODO: This code is redundant with some code in InCallScreen: refactor. 514 if (Intent.ACTION_CALL_PRIVILEGED.equals(action)) { 515 // We're handling a CALL_PRIVILEGED intent, so we know this request came 516 // from a trusted source (like the built-in dialer.) So even a number 517 // that's *potentially* an emergency number can safely be promoted to 518 // CALL_EMERGENCY (since we *should* allow you to dial "91112345" from 519 // the dialer if you really want to.) 520 if (isPotentialEmergencyNumber) { 521 Log.i(TAG, "ACTION_CALL_PRIVILEGED is used while the number is a potential" 522 + " emergency number. Use ACTION_CALL_EMERGENCY as an action instead."); 523 action = Intent.ACTION_CALL_EMERGENCY; 524 } else { 525 action = Intent.ACTION_CALL; 526 } 527 if (DBG) Log.v(TAG, " - updating action from CALL_PRIVILEGED to " + action); 528 intent.setAction(action); 529 } 530 531 if (Intent.ACTION_CALL.equals(action)) { 532 if (isPotentialEmergencyNumber) { 533 Log.w(TAG, "Cannot call potential emergency number '" + number 534 + "' with CALL Intent " + intent + "."); 535 Log.i(TAG, "Launching default dialer instead..."); 536 537 Intent invokeFrameworkDialer = new Intent(); 538 539 // TwelveKeyDialer is in a tab so we really want 540 // DialtactsActivity. Build the intent 'manually' to 541 // use the java resolver to find the dialer class (as 542 // opposed to a Context which look up known android 543 // packages only) 544 final Resources resources = getResources(); 545 invokeFrameworkDialer.setClassName( 546 resources.getString(R.string.ui_default_package), 547 resources.getString(R.string.dialer_default_class)); 548 invokeFrameworkDialer.setAction(Intent.ACTION_DIAL); 549 invokeFrameworkDialer.setData(intent.getData()); 550 if (DBG) Log.v(TAG, "onCreate(): calling startActivity for Dialer: " 551 + invokeFrameworkDialer); 552 startActivity(invokeFrameworkDialer); 553 finish(); 554 return; 555 } 556 callNow = false; 557 } else if (Intent.ACTION_CALL_EMERGENCY.equals(action)) { 558 // ACTION_CALL_EMERGENCY case: this is either a CALL_PRIVILEGED 559 // intent that we just turned into a CALL_EMERGENCY intent (see 560 // above), or else it really is an CALL_EMERGENCY intent that 561 // came directly from some other app (e.g. the EmergencyDialer 562 // activity built in to the Phone app.) 563 // Make sure it's at least *possible* that this is really an 564 // emergency number. 565 if (!isPotentialEmergencyNumber) { 566 Log.w(TAG, "Cannot call non-potential-emergency number " + number 567 + " with EMERGENCY_CALL Intent " + intent + "." 568 + " Finish the Activity immediately."); 569 finish(); 570 return; 571 } 572 callNow = true; 573 } else { 574 Log.e(TAG, "Unhandled Intent " + intent + ". Finish the Activity immediately."); 575 finish(); 576 return; 577 } 578 579 // Make sure the screen is turned on. This is probably the right 580 // thing to do, and more importantly it works around an issue in the 581 // activity manager where we will not launch activities consistently 582 // when the screen is off (since it is trying to keep them paused 583 // and has... issues). 584 // 585 // Also, this ensures the device stays awake while doing the following 586 // broadcast; technically we should be holding a wake lock here 587 // as well. 588 PhoneGlobals.getInstance().wakeUpScreen(); 589 590 // If number is null, we're probably trying to call a non-existent voicemail number, 591 // send an empty flash or something else is fishy. Whatever the problem, there's no 592 // number, so there's no point in allowing apps to modify the number. 593 if (TextUtils.isEmpty(number)) { 594 if (intent.getBooleanExtra(EXTRA_SEND_EMPTY_FLASH, false)) { 595 Log.i(TAG, "onCreate: SEND_EMPTY_FLASH..."); 596 PhoneUtils.sendEmptyFlash(PhoneGlobals.getPhone()); 597 finish(); 598 return; 599 } else { 600 Log.i(TAG, "onCreate: null or empty number, setting callNow=true..."); 601 callNow = true; 602 } 603 } 604 605 if (callNow) { 606 // This is a special kind of call (most likely an emergency number) 607 // that 3rd parties aren't allowed to intercept or affect in any way. 608 // So initiate the outgoing call immediately. 609 610 Log.i(TAG, "onCreate(): callNow case! Calling placeCall(): " + intent); 611 612 // Initiate the outgoing call, and simultaneously launch the 613 // InCallScreen to display the in-call UI: 614 PhoneGlobals.getInstance().callController.placeCall(intent); 615 616 // Note we do *not* "return" here, but instead continue and 617 // send the ACTION_NEW_OUTGOING_CALL broadcast like for any 618 // other outgoing call. (But when the broadcast finally 619 // reaches the OutgoingCallReceiver, we'll know not to 620 // initiate the call again because of the presence of the 621 // EXTRA_ALREADY_CALLED extra.) 622 } 623 624 // For now, SIP calls will be processed directly without a 625 // NEW_OUTGOING_CALL broadcast. 626 // 627 // TODO: In the future, though, 3rd party apps *should* be allowed to 628 // intercept outgoing calls to SIP addresses as well. To do this, we should 629 // (1) update the NEW_OUTGOING_CALL intent documentation to explain this 630 // case, and (2) pass the outgoing SIP address by *not* overloading the 631 // EXTRA_PHONE_NUMBER extra, but instead using a new separate extra to hold 632 // the outgoing SIP address. (Be sure to document whether it's a URI or just 633 // a plain address, whether it could be a tel: URI, etc.) 634 Uri uri = intent.getData(); 635 String scheme = uri.getScheme(); 636 if (Constants.SCHEME_SIP.equals(scheme) || PhoneNumberUtils.isUriNumber(number)) { 637 Log.i(TAG, "The requested number was detected as SIP call."); 638 startSipCallOptionHandler(this, intent, uri, number); 639 finish(); 640 return; 641 642 // TODO: if there's ever a way for SIP calls to trigger a 643 // "callNow=true" case (see above), we'll need to handle that 644 // case here too (most likely by just doing nothing at all.) 645 } 646 647 Intent broadcastIntent = new Intent(Intent.ACTION_NEW_OUTGOING_CALL); 648 if (number != null) { 649 broadcastIntent.putExtra(Intent.EXTRA_PHONE_NUMBER, number); 650 } 651 CallGatewayManager.checkAndCopyPhoneProviderExtras(intent, broadcastIntent); 652 broadcastIntent.putExtra(EXTRA_ALREADY_CALLED, callNow); 653 broadcastIntent.putExtra(EXTRA_ORIGINAL_URI, uri.toString()); 654 // Need to raise foreground in-call UI as soon as possible while allowing 3rd party app 655 // to intercept the outgoing call. 656 broadcastIntent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 657 if (DBG) Log.v(TAG, " - Broadcasting intent: " + broadcastIntent + "."); 658 659 // Set a timer so that we can prepare for unexpected delay introduced by the broadcast. 660 // If it takes too much time, the timer will show "waiting" spinner. 661 // This message will be removed when OutgoingCallReceiver#onReceive() is called before the 662 // timeout. 663 mHandler.sendEmptyMessageDelayed(EVENT_OUTGOING_CALL_TIMEOUT, 664 OUTGOING_CALL_TIMEOUT_THRESHOLD); 665 sendOrderedBroadcastAsUser(broadcastIntent, UserHandle.OWNER, 666 PERMISSION, new OutgoingCallReceiver(), 667 null, // scheduler 668 Activity.RESULT_OK, // initialCode 669 number, // initialData: initial value for the result data 670 null); // initialExtras 671 } 672 673 @Override onStop()674 protected void onStop() { 675 // Clean up (and dismiss if necessary) any managed dialogs. 676 // 677 // We don't do this in onPause() since we can be paused/resumed 678 // due to orientation changes (in which case we don't want to 679 // disturb the dialog), but we *do* need it here in onStop() to be 680 // sure we clean up if the user hits HOME while the dialog is up. 681 // 682 // Note it's safe to call removeDialog() even if there's no dialog 683 // associated with that ID. 684 removeDialog(DIALOG_NOT_VOICE_CAPABLE); 685 686 super.onStop(); 687 } 688 689 /** 690 * Handle the specified CALL or CALL_* intent on a non-voice-capable 691 * device. 692 * 693 * This method may launch a different intent (if there's some useful 694 * alternative action to take), or otherwise display an error dialog, 695 * and in either case will finish() the current activity when done. 696 */ handleNonVoiceCapable(Intent intent)697 private void handleNonVoiceCapable(Intent intent) { 698 if (DBG) Log.v(TAG, "handleNonVoiceCapable: handling " + intent 699 + " on non-voice-capable device..."); 700 701 // Just show a generic "voice calling not supported" dialog. 702 showDialog(DIALOG_NOT_VOICE_CAPABLE); 703 // ...and we'll eventually finish() when the user dismisses 704 // or cancels the dialog. 705 } 706 707 @Override onCreateDialog(int id)708 protected Dialog onCreateDialog(int id) { 709 Dialog dialog; 710 switch(id) { 711 case DIALOG_NOT_VOICE_CAPABLE: 712 dialog = new AlertDialog.Builder(this) 713 .setTitle(R.string.not_voice_capable) 714 .setIconAttribute(android.R.attr.alertDialogIcon) 715 .setPositiveButton(android.R.string.ok, this) 716 .setOnCancelListener(this) 717 .create(); 718 break; 719 default: 720 Log.w(TAG, "onCreateDialog: unexpected ID " + id); 721 dialog = null; 722 break; 723 } 724 return dialog; 725 } 726 727 /** DialogInterface.OnClickListener implementation */ 728 @Override onClick(DialogInterface dialog, int id)729 public void onClick(DialogInterface dialog, int id) { 730 // DIALOG_NOT_VOICE_CAPABLE is the only dialog we ever use (so far 731 // at least), and its only button is "OK". 732 finish(); 733 } 734 735 /** DialogInterface.OnCancelListener implementation */ 736 @Override onCancel(DialogInterface dialog)737 public void onCancel(DialogInterface dialog) { 738 // DIALOG_NOT_VOICE_CAPABLE is the only dialog we ever use (so far 739 // at least), and canceling it is just like hitting "OK". 740 finish(); 741 } 742 743 /** 744 * Implement onConfigurationChanged() purely for debugging purposes, 745 * to make sure that the android:configChanges element in our manifest 746 * is working properly. 747 */ 748 @Override onConfigurationChanged(Configuration newConfig)749 public void onConfigurationChanged(Configuration newConfig) { 750 super.onConfigurationChanged(newConfig); 751 if (DBG) Log.v(TAG, "onConfigurationChanged: newConfig = " + newConfig); 752 } 753 } 754