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      1 /*
      2  * Copyright (C) 2006 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.server.am;
     18 
     19 import android.app.ActivityManager;
     20 import android.content.IIntentSender;
     21 import android.content.IIntentReceiver;
     22 import android.app.PendingIntent;
     23 import android.content.Intent;
     24 import android.os.Binder;
     25 import android.os.Bundle;
     26 import android.os.IBinder;
     27 import android.os.RemoteException;
     28 import android.os.UserId;
     29 import android.util.Slog;
     30 
     31 import java.io.PrintWriter;
     32 import java.lang.ref.WeakReference;
     33 
     34 class PendingIntentRecord extends IIntentSender.Stub {
     35     final ActivityManagerService owner;
     36     final Key key;
     37     final int uid;
     38     final WeakReference<PendingIntentRecord> ref;
     39     boolean sent = false;
     40     boolean canceled = false;
     41 
     42     String stringName;
     43 
     44     final static class Key {
     45         final int type;
     46         final String packageName;
     47         final ActivityRecord activity;
     48         final String who;
     49         final int requestCode;
     50         final Intent requestIntent;
     51         final String requestResolvedType;
     52         final Bundle options;
     53         Intent[] allIntents;
     54         String[] allResolvedTypes;
     55         final int flags;
     56         final int hashCode;
     57 
     58         private static final int ODD_PRIME_NUMBER = 37;
     59 
     60         Key(int _t, String _p, ActivityRecord _a, String _w,
     61                 int _r, Intent[] _i, String[] _it, int _f, Bundle _o) {
     62             type = _t;
     63             packageName = _p;
     64             activity = _a;
     65             who = _w;
     66             requestCode = _r;
     67             requestIntent = _i != null ? _i[_i.length-1] : null;
     68             requestResolvedType = _it != null ? _it[_it.length-1] : null;
     69             allIntents = _i;
     70             allResolvedTypes = _it;
     71             flags = _f;
     72             options = _o;
     73 
     74             int hash = 23;
     75             hash = (ODD_PRIME_NUMBER*hash) + _f;
     76             hash = (ODD_PRIME_NUMBER*hash) + _r;
     77             if (_w != null) {
     78                 hash = (ODD_PRIME_NUMBER*hash) + _w.hashCode();
     79             }
     80             if (_a != null) {
     81                 hash = (ODD_PRIME_NUMBER*hash) + _a.hashCode();
     82             }
     83             if (requestIntent != null) {
     84                 hash = (ODD_PRIME_NUMBER*hash) + requestIntent.filterHashCode();
     85             }
     86             if (requestResolvedType != null) {
     87                 hash = (ODD_PRIME_NUMBER*hash) + requestResolvedType.hashCode();
     88             }
     89             hash = (ODD_PRIME_NUMBER*hash) + _p.hashCode();
     90             hash = (ODD_PRIME_NUMBER*hash) + _t;
     91             hashCode = hash;
     92             //Slog.i(ActivityManagerService.TAG, this + " hashCode=0x"
     93             //        + Integer.toHexString(hashCode));
     94         }
     95 
     96         public boolean equals(Object otherObj) {
     97             if (otherObj == null) {
     98                 return false;
     99             }
    100             try {
    101                 Key other = (Key)otherObj;
    102                 if (type != other.type) {
    103                     return false;
    104                 }
    105                 if (!packageName.equals(other.packageName)) {
    106                     return false;
    107                 }
    108                 if (activity != other.activity) {
    109                     return false;
    110                 }
    111                 if (who != other.who) {
    112                     if (who != null) {
    113                         if (!who.equals(other.who)) {
    114                             return false;
    115                         }
    116                     } else if (other.who != null) {
    117                         return false;
    118                     }
    119                 }
    120                 if (requestCode != other.requestCode) {
    121                     return false;
    122                 }
    123                 if (requestIntent != other.requestIntent) {
    124                     if (requestIntent != null) {
    125                         if (!requestIntent.filterEquals(other.requestIntent)) {
    126                             return false;
    127                         }
    128                     } else if (other.requestIntent != null) {
    129                         return false;
    130                     }
    131                 }
    132                 if (requestResolvedType != other.requestResolvedType) {
    133                     if (requestResolvedType != null) {
    134                         if (!requestResolvedType.equals(other.requestResolvedType)) {
    135                             return false;
    136                         }
    137                     } else if (other.requestResolvedType != null) {
    138                         return false;
    139                     }
    140                 }
    141                 if (flags != other.flags) {
    142                     return false;
    143                 }
    144                 return true;
    145             } catch (ClassCastException e) {
    146             }
    147             return false;
    148         }
    149 
    150         public int hashCode() {
    151             return hashCode;
    152         }
    153 
    154         public String toString() {
    155             return "Key{" + typeName() + " pkg=" + packageName
    156                 + " intent="
    157                 + (requestIntent != null
    158                         ? requestIntent.toShortString(false, true, false, false) : "<null>")
    159                 + " flags=0x" + Integer.toHexString(flags) + "}";
    160         }
    161 
    162         String typeName() {
    163             switch (type) {
    164                 case ActivityManager.INTENT_SENDER_ACTIVITY:
    165                     return "startActivity";
    166                 case ActivityManager.INTENT_SENDER_BROADCAST:
    167                     return "broadcastIntent";
    168                 case ActivityManager.INTENT_SENDER_SERVICE:
    169                     return "startService";
    170                 case ActivityManager.INTENT_SENDER_ACTIVITY_RESULT:
    171                     return "activityResult";
    172             }
    173             return Integer.toString(type);
    174         }
    175     }
    176 
    177     PendingIntentRecord(ActivityManagerService _owner, Key _k, int _u) {
    178         owner = _owner;
    179         key = _k;
    180         uid = _u;
    181         ref = new WeakReference<PendingIntentRecord>(this);
    182     }
    183 
    184     public int send(int code, Intent intent, String resolvedType,
    185             IIntentReceiver finishedReceiver, String requiredPermission) {
    186         return sendInner(code, intent, resolvedType, finishedReceiver,
    187                 requiredPermission, null, null, 0, 0, 0, null);
    188     }
    189 
    190     int sendInner(int code, Intent intent, String resolvedType,
    191             IIntentReceiver finishedReceiver, String requiredPermission,
    192             IBinder resultTo, String resultWho, int requestCode,
    193             int flagsMask, int flagsValues, Bundle options) {
    194         synchronized(owner) {
    195             if (!canceled) {
    196                 sent = true;
    197                 if ((key.flags&PendingIntent.FLAG_ONE_SHOT) != 0) {
    198                     owner.cancelIntentSenderLocked(this, true);
    199                     canceled = true;
    200                 }
    201                 Intent finalIntent = key.requestIntent != null
    202                         ? new Intent(key.requestIntent) : new Intent();
    203                 if (intent != null) {
    204                     int changes = finalIntent.fillIn(intent, key.flags);
    205                     if ((changes&Intent.FILL_IN_DATA) == 0) {
    206                         resolvedType = key.requestResolvedType;
    207                     }
    208                 } else {
    209                     resolvedType = key.requestResolvedType;
    210                 }
    211                 flagsMask &= ~Intent.IMMUTABLE_FLAGS;
    212                 flagsValues &= flagsMask;
    213                 finalIntent.setFlags((finalIntent.getFlags()&~flagsMask) | flagsValues);
    214 
    215                 final long origId = Binder.clearCallingIdentity();
    216 
    217                 boolean sendFinish = finishedReceiver != null;
    218                 switch (key.type) {
    219                     case ActivityManager.INTENT_SENDER_ACTIVITY:
    220                         if (options == null) {
    221                             options = key.options;
    222                         } else if (key.options != null) {
    223                             Bundle opts = new Bundle(key.options);
    224                             opts.putAll(options);
    225                             options = opts;
    226                         }
    227                         try {
    228                             if (key.allIntents != null && key.allIntents.length > 1) {
    229                                 Intent[] allIntents = new Intent[key.allIntents.length];
    230                                 String[] allResolvedTypes = new String[key.allIntents.length];
    231                                 System.arraycopy(key.allIntents, 0, allIntents, 0,
    232                                         key.allIntents.length);
    233                                 if (key.allResolvedTypes != null) {
    234                                     System.arraycopy(key.allResolvedTypes, 0, allResolvedTypes, 0,
    235                                             key.allResolvedTypes.length);
    236                                 }
    237                                 allIntents[allIntents.length-1] = finalIntent;
    238                                 allResolvedTypes[allResolvedTypes.length-1] = resolvedType;
    239                                 owner.startActivitiesInPackage(uid, allIntents,
    240                                         allResolvedTypes, resultTo, options);
    241                             } else {
    242                                 owner.startActivityInPackage(uid,
    243                                         finalIntent, resolvedType,
    244                                         resultTo, resultWho, requestCode, 0, options);
    245                             }
    246                         } catch (RuntimeException e) {
    247                             Slog.w(ActivityManagerService.TAG,
    248                                     "Unable to send startActivity intent", e);
    249                         }
    250                         break;
    251                     case ActivityManager.INTENT_SENDER_ACTIVITY_RESULT:
    252                         key.activity.stack.sendActivityResultLocked(-1, key.activity,
    253                                 key.who, key.requestCode, code, finalIntent);
    254                         break;
    255                     case ActivityManager.INTENT_SENDER_BROADCAST:
    256                         try {
    257                             // If a completion callback has been requested, require
    258                             // that the broadcast be delivered synchronously
    259                             owner.broadcastIntentInPackage(key.packageName, uid,
    260                                     finalIntent, resolvedType,
    261                                     finishedReceiver, code, null, null,
    262                                 requiredPermission, (finishedReceiver != null), false, UserId
    263                                         .getUserId(uid));
    264                             sendFinish = false;
    265                         } catch (RuntimeException e) {
    266                             Slog.w(ActivityManagerService.TAG,
    267                                     "Unable to send startActivity intent", e);
    268                         }
    269                         break;
    270                     case ActivityManager.INTENT_SENDER_SERVICE:
    271                         try {
    272                             owner.startServiceInPackage(uid,
    273                                     finalIntent, resolvedType);
    274                         } catch (RuntimeException e) {
    275                             Slog.w(ActivityManagerService.TAG,
    276                                     "Unable to send startService intent", e);
    277                         }
    278                         break;
    279                 }
    280 
    281                 if (sendFinish) {
    282                     try {
    283                         finishedReceiver.performReceive(new Intent(finalIntent), 0,
    284                                 null, null, false, false);
    285                     } catch (RemoteException e) {
    286                     }
    287                 }
    288 
    289                 Binder.restoreCallingIdentity(origId);
    290 
    291                 return 0;
    292             }
    293         }
    294         return ActivityManager.START_CANCELED;
    295     }
    296 
    297     protected void finalize() throws Throwable {
    298         try {
    299             if (!canceled) {
    300                 owner.mHandler.sendMessage(owner.mHandler.obtainMessage(
    301                         ActivityManagerService.FINALIZE_PENDING_INTENT_MSG, this));
    302             }
    303         } finally {
    304             super.finalize();
    305         }
    306     }
    307 
    308     public void completeFinalize() {
    309         synchronized(owner) {
    310             WeakReference<PendingIntentRecord> current =
    311                     owner.mIntentSenderRecords.get(key);
    312             if (current == ref) {
    313                 owner.mIntentSenderRecords.remove(key);
    314             }
    315         }
    316     }
    317 
    318     void dump(PrintWriter pw, String prefix) {
    319         pw.print(prefix); pw.print("uid="); pw.print(uid);
    320                 pw.print(" packageName="); pw.print(key.packageName);
    321                 pw.print(" type="); pw.print(key.typeName());
    322                 pw.print(" flags=0x"); pw.println(Integer.toHexString(key.flags));
    323         if (key.activity != null || key.who != null) {
    324             pw.print(prefix); pw.print("activity="); pw.print(key.activity);
    325                     pw.print(" who="); pw.println(key.who);
    326         }
    327         if (key.requestCode != 0 || key.requestResolvedType != null) {
    328             pw.print(prefix); pw.print("requestCode="); pw.print(key.requestCode);
    329                     pw.print(" requestResolvedType="); pw.println(key.requestResolvedType);
    330         }
    331         if (key.requestIntent != null) {
    332             pw.print(prefix); pw.print("requestIntent=");
    333                     pw.println(key.requestIntent.toShortString(false, true, true, true));
    334         }
    335         if (sent || canceled) {
    336             pw.print(prefix); pw.print("sent="); pw.print(sent);
    337                     pw.print(" canceled="); pw.println(canceled);
    338         }
    339     }
    340 
    341     public String toString() {
    342         if (stringName != null) {
    343             return stringName;
    344         }
    345         StringBuilder sb = new StringBuilder(128);
    346         sb.append("PendingIntentRecord{");
    347         sb.append(Integer.toHexString(System.identityHashCode(this)));
    348         sb.append(' ');
    349         sb.append(key.packageName);
    350         sb.append(' ');
    351         sb.append(key.typeName());
    352         sb.append('}');
    353         return stringName = sb.toString();
    354     }
    355 }
    356