| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.internal.telephony; |
| |
| import com.google.android.mms.MmsException; |
| import com.google.android.mms.pdu.DeliveryInd; |
| import com.google.android.mms.pdu.GenericPdu; |
| import com.google.android.mms.pdu.NotificationInd; |
| import com.google.android.mms.pdu.PduHeaders; |
| import com.google.android.mms.pdu.PduParser; |
| import com.google.android.mms.pdu.PduPersister; |
| import com.google.android.mms.pdu.ReadOrigInd; |
| |
| import android.app.Activity; |
| import android.app.AppOpsManager; |
| import android.content.BroadcastReceiver; |
| import android.content.ComponentName; |
| import android.content.ContentValues; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.ServiceConnection; |
| import android.database.Cursor; |
| import android.database.DatabaseUtils; |
| import android.database.sqlite.SQLiteException; |
| import android.database.sqlite.SqliteWrapper; |
| import android.net.Uri; |
| import android.os.IBinder; |
| import android.os.RemoteException; |
| import android.provider.Telephony; |
| import android.provider.Telephony.Sms.Intents; |
| import android.telephony.MessagingConfigurationManager; |
| import android.telephony.SmsManager; |
| import android.telephony.SubscriptionManager; |
| import android.telephony.Rlog; |
| import android.util.Log; |
| |
| import com.android.internal.telephony.uicc.IccUtils; |
| |
| import static com.google.android.mms.pdu.PduHeaders.MESSAGE_TYPE_DELIVERY_IND; |
| import static com.google.android.mms.pdu.PduHeaders.MESSAGE_TYPE_NOTIFICATION_IND; |
| import static com.google.android.mms.pdu.PduHeaders.MESSAGE_TYPE_READ_ORIG_IND; |
| |
| /** |
| * WAP push handler class. |
| * |
| * @hide |
| */ |
| public class WapPushOverSms implements ServiceConnection { |
| private static final String TAG = "WAP PUSH"; |
| private static final boolean DBG = true; |
| |
| private final Context mContext; |
| |
| /** Assigned from ServiceConnection callback on main threaad. */ |
| private volatile IWapPushManager mWapPushManager; |
| |
| @Override |
| public void onServiceConnected(ComponentName name, IBinder service) { |
| mWapPushManager = IWapPushManager.Stub.asInterface(service); |
| if (DBG) Rlog.v(TAG, "wappush manager connected to " + hashCode()); |
| } |
| |
| @Override |
| public void onServiceDisconnected(ComponentName name) { |
| mWapPushManager = null; |
| if (DBG) Rlog.v(TAG, "wappush manager disconnected."); |
| } |
| |
| public WapPushOverSms(Context context) { |
| mContext = context; |
| Intent intent = new Intent(IWapPushManager.class.getName()); |
| ComponentName comp = intent.resolveSystemService(context.getPackageManager(), 0); |
| intent.setComponent(comp); |
| if (comp == null || !context.bindService(intent, this, Context.BIND_AUTO_CREATE)) { |
| Rlog.e(TAG, "bindService() for wappush manager failed"); |
| } else { |
| if (DBG) Rlog.v(TAG, "bindService() for wappush manager succeeded"); |
| } |
| } |
| |
| void dispose() { |
| if (mWapPushManager != null) { |
| if (DBG) Rlog.v(TAG, "dispose: unbind wappush manager"); |
| mContext.unbindService(this); |
| } else { |
| Rlog.e(TAG, "dispose: not bound to a wappush manager"); |
| } |
| } |
| |
| /** |
| * Dispatches inbound messages that are in the WAP PDU format. See |
| * wap-230-wsp-20010705-a section 8 for details on the WAP PDU format. |
| * |
| * @param pdu The WAP PDU, made up of one or more SMS PDUs |
| * @return a result code from {@link android.provider.Telephony.Sms.Intents}, or |
| * {@link Activity#RESULT_OK} if the message has been broadcast |
| * to applications |
| */ |
| public int dispatchWapPdu(byte[] pdu, BroadcastReceiver receiver, InboundSmsHandler handler) { |
| |
| if (DBG) Rlog.d(TAG, "Rx: " + IccUtils.bytesToHexString(pdu)); |
| |
| try { |
| int index = 0; |
| int transactionId = pdu[index++] & 0xFF; |
| int pduType = pdu[index++] & 0xFF; |
| |
| // Should we "abort" if no subId for now just no supplying extra param below |
| int phoneId = handler.getPhone().getPhoneId(); |
| |
| if ((pduType != WspTypeDecoder.PDU_TYPE_PUSH) && |
| (pduType != WspTypeDecoder.PDU_TYPE_CONFIRMED_PUSH)) { |
| index = mContext.getResources().getInteger( |
| com.android.internal.R.integer.config_valid_wappush_index); |
| if (index != -1) { |
| transactionId = pdu[index++] & 0xff; |
| pduType = pdu[index++] & 0xff; |
| if (DBG) |
| Rlog.d(TAG, "index = " + index + " PDU Type = " + pduType + |
| " transactionID = " + transactionId); |
| |
| // recheck wap push pduType |
| if ((pduType != WspTypeDecoder.PDU_TYPE_PUSH) |
| && (pduType != WspTypeDecoder.PDU_TYPE_CONFIRMED_PUSH)) { |
| if (DBG) Rlog.w(TAG, "Received non-PUSH WAP PDU. Type = " + pduType); |
| return Intents.RESULT_SMS_HANDLED; |
| } |
| } else { |
| if (DBG) Rlog.w(TAG, "Received non-PUSH WAP PDU. Type = " + pduType); |
| return Intents.RESULT_SMS_HANDLED; |
| } |
| } |
| |
| WspTypeDecoder pduDecoder = new WspTypeDecoder(pdu); |
| |
| /** |
| * Parse HeaderLen(unsigned integer). |
| * From wap-230-wsp-20010705-a section 8.1.2 |
| * The maximum size of a uintvar is 32 bits. |
| * So it will be encoded in no more than 5 octets. |
| */ |
| if (pduDecoder.decodeUintvarInteger(index) == false) { |
| if (DBG) Rlog.w(TAG, "Received PDU. Header Length error."); |
| return Intents.RESULT_SMS_GENERIC_ERROR; |
| } |
| int headerLength = (int) pduDecoder.getValue32(); |
| index += pduDecoder.getDecodedDataLength(); |
| |
| int headerStartIndex = index; |
| |
| /** |
| * Parse Content-Type. |
| * From wap-230-wsp-20010705-a section 8.4.2.24 |
| * |
| * Content-type-value = Constrained-media | Content-general-form |
| * Content-general-form = Value-length Media-type |
| * Media-type = (Well-known-media | Extension-Media) *(Parameter) |
| * Value-length = Short-length | (Length-quote Length) |
| * Short-length = <Any octet 0-30> (octet <= WAP_PDU_SHORT_LENGTH_MAX) |
| * Length-quote = <Octet 31> (WAP_PDU_LENGTH_QUOTE) |
| * Length = Uintvar-integer |
| */ |
| if (pduDecoder.decodeContentType(index) == false) { |
| if (DBG) Rlog.w(TAG, "Received PDU. Header Content-Type error."); |
| return Intents.RESULT_SMS_GENERIC_ERROR; |
| } |
| |
| String mimeType = pduDecoder.getValueString(); |
| long binaryContentType = pduDecoder.getValue32(); |
| index += pduDecoder.getDecodedDataLength(); |
| |
| byte[] header = new byte[headerLength]; |
| System.arraycopy(pdu, headerStartIndex, header, 0, header.length); |
| |
| byte[] intentData; |
| |
| if (mimeType != null && mimeType.equals(WspTypeDecoder.CONTENT_TYPE_B_PUSH_CO)) { |
| intentData = pdu; |
| } else { |
| int dataIndex = headerStartIndex + headerLength; |
| intentData = new byte[pdu.length - dataIndex]; |
| System.arraycopy(pdu, dataIndex, intentData, 0, intentData.length); |
| } |
| |
| if (SmsManager.getDefault().getAutoPersisting()) { |
| // Store the wap push data in telephony |
| writeInboxMessage(intentData); |
| } |
| |
| /** |
| * Seek for application ID field in WSP header. |
| * If application ID is found, WapPushManager substitute the message |
| * processing. Since WapPushManager is optional module, if WapPushManager |
| * is not found, legacy message processing will be continued. |
| */ |
| if (pduDecoder.seekXWapApplicationId(index, index + headerLength - 1)) { |
| index = (int) pduDecoder.getValue32(); |
| pduDecoder.decodeXWapApplicationId(index); |
| String wapAppId = pduDecoder.getValueString(); |
| if (wapAppId == null) { |
| wapAppId = Integer.toString((int) pduDecoder.getValue32()); |
| } |
| |
| String contentType = ((mimeType == null) ? |
| Long.toString(binaryContentType) : mimeType); |
| if (DBG) Rlog.v(TAG, "appid found: " + wapAppId + ":" + contentType); |
| |
| try { |
| boolean processFurther = true; |
| IWapPushManager wapPushMan = mWapPushManager; |
| |
| if (wapPushMan == null) { |
| if (DBG) Rlog.w(TAG, "wap push manager not found!"); |
| } else { |
| Intent intent = new Intent(); |
| intent.putExtra("transactionId", transactionId); |
| intent.putExtra("pduType", pduType); |
| intent.putExtra("header", header); |
| intent.putExtra("data", intentData); |
| intent.putExtra("contentTypeParameters", |
| pduDecoder.getContentParameters()); |
| SubscriptionManager.putPhoneIdAndSubIdExtra(intent, phoneId); |
| |
| int procRet = wapPushMan.processMessage(wapAppId, contentType, intent); |
| if (DBG) Rlog.v(TAG, "procRet:" + procRet); |
| if ((procRet & WapPushManagerParams.MESSAGE_HANDLED) > 0 |
| && (procRet & WapPushManagerParams.FURTHER_PROCESSING) == 0) { |
| processFurther = false; |
| } |
| } |
| if (!processFurther) { |
| return Intents.RESULT_SMS_HANDLED; |
| } |
| } catch (RemoteException e) { |
| if (DBG) Rlog.w(TAG, "remote func failed..."); |
| } |
| } |
| if (DBG) Rlog.v(TAG, "fall back to existing handler"); |
| |
| if (mimeType == null) { |
| if (DBG) Rlog.w(TAG, "Header Content-Type error."); |
| return Intents.RESULT_SMS_GENERIC_ERROR; |
| } |
| |
| String permission; |
| int appOp; |
| |
| if (mimeType.equals(WspTypeDecoder.CONTENT_TYPE_B_MMS)) { |
| permission = android.Manifest.permission.RECEIVE_MMS; |
| appOp = AppOpsManager.OP_RECEIVE_MMS; |
| } else { |
| permission = android.Manifest.permission.RECEIVE_WAP_PUSH; |
| appOp = AppOpsManager.OP_RECEIVE_WAP_PUSH; |
| } |
| |
| Intent intent = new Intent(Intents.WAP_PUSH_DELIVER_ACTION); |
| intent.setType(mimeType); |
| intent.putExtra("transactionId", transactionId); |
| intent.putExtra("pduType", pduType); |
| intent.putExtra("header", header); |
| intent.putExtra("data", intentData); |
| intent.putExtra("contentTypeParameters", pduDecoder.getContentParameters()); |
| SubscriptionManager.putPhoneIdAndSubIdExtra(intent, phoneId); |
| |
| // Direct the intent to only the default MMS app. If we can't find a default MMS app |
| // then sent it to all broadcast receivers. |
| ComponentName componentName = SmsApplication.getDefaultMmsApplication(mContext, true); |
| if (componentName != null) { |
| // Deliver MMS message only to this receiver |
| intent.setComponent(componentName); |
| if (DBG) Rlog.v(TAG, "Delivering MMS to: " + componentName.getPackageName() + |
| " " + componentName.getClassName()); |
| } |
| |
| handler.dispatchIntent(intent, permission, appOp, receiver); |
| return Activity.RESULT_OK; |
| } catch (ArrayIndexOutOfBoundsException aie) { |
| // 0-byte WAP PDU or other unexpected WAP PDU contents can easily throw this; |
| // log exception string without stack trace and return false. |
| Rlog.e(TAG, "ignoring dispatchWapPdu() array index exception: " + aie); |
| return Intents.RESULT_SMS_GENERIC_ERROR; |
| } |
| } |
| |
| private void writeInboxMessage(byte[] pushData) { |
| final GenericPdu pdu = new PduParser(pushData).parse(); |
| if (pdu == null) { |
| Rlog.e(TAG, "Invalid PUSH PDU"); |
| } |
| final PduPersister persister = PduPersister.getPduPersister(mContext); |
| final int type = pdu.getMessageType(); |
| try { |
| switch (type) { |
| case MESSAGE_TYPE_DELIVERY_IND: |
| case MESSAGE_TYPE_READ_ORIG_IND: { |
| final long threadId = getDeliveryOrReadReportThreadId(mContext, pdu); |
| if (threadId == -1) { |
| // The associated SendReq isn't found, therefore skip |
| // processing this PDU. |
| Rlog.e(TAG, "Failed to find delivery or read report's thread id"); |
| break; |
| } |
| final Uri uri = persister.persist( |
| pdu, |
| Telephony.Mms.Inbox.CONTENT_URI, |
| true/*createThreadId*/, |
| true/*groupMmsEnabled*/, |
| null/*preOpenedFiles*/); |
| if (uri == null) { |
| Rlog.e(TAG, "Failed to persist delivery or read report"); |
| break; |
| } |
| // Update thread ID for ReadOrigInd & DeliveryInd. |
| final ContentValues values = new ContentValues(1); |
| values.put(Telephony.Mms.THREAD_ID, threadId); |
| if (SqliteWrapper.update( |
| mContext, |
| mContext.getContentResolver(), |
| uri, |
| values, |
| null/*where*/, |
| null/*selectionArgs*/) != 1) { |
| Rlog.e(TAG, "Failed to update delivery or read report thread id"); |
| } |
| break; |
| } |
| case MESSAGE_TYPE_NOTIFICATION_IND: { |
| final NotificationInd nInd = (NotificationInd) pdu; |
| |
| if (MessagingConfigurationManager.getDefault().getCarrierConfigBoolean( |
| MessagingConfigurationManager.CONF_APPEND_TRANSACTION_ID, false)) { |
| final byte [] contentLocation = nInd.getContentLocation(); |
| if ('=' == contentLocation[contentLocation.length - 1]) { |
| byte [] transactionId = nInd.getTransactionId(); |
| byte [] contentLocationWithId = new byte [contentLocation.length |
| + transactionId.length]; |
| System.arraycopy(contentLocation, 0, contentLocationWithId, |
| 0, contentLocation.length); |
| System.arraycopy(transactionId, 0, contentLocationWithId, |
| contentLocation.length, transactionId.length); |
| nInd.setContentLocation(contentLocationWithId); |
| } |
| } |
| if (!isDuplicateNotification(mContext, nInd)) { |
| final Uri uri = persister.persist( |
| pdu, |
| Telephony.Mms.Inbox.CONTENT_URI, |
| true/*createThreadId*/, |
| true/*groupMmsEnabled*/, |
| null/*preOpenedFiles*/); |
| if (uri == null) { |
| Rlog.e(TAG, "Failed to save MMS WAP push notification ind"); |
| } |
| } else { |
| Rlog.d(TAG, "Skip storing duplicate MMS WAP push notification ind: " |
| + new String(nInd.getContentLocation())); |
| } |
| break; |
| } |
| default: |
| Log.e(TAG, "Received unrecognized WAP Push PDU."); |
| } |
| } catch (MmsException e) { |
| Log.e(TAG, "Failed to save MMS WAP push data: type=" + type, e); |
| } catch (RuntimeException e) { |
| Log.e(TAG, "Unexpected RuntimeException in persisting MMS WAP push data", e); |
| } |
| |
| } |
| |
| private static final String THREAD_ID_SELECTION = |
| Telephony.Mms.MESSAGE_ID + "=? AND " + Telephony.Mms.MESSAGE_TYPE + "=?"; |
| |
| private static long getDeliveryOrReadReportThreadId(Context context, GenericPdu pdu) { |
| String messageId; |
| if (pdu instanceof DeliveryInd) { |
| messageId = new String(((DeliveryInd) pdu).getMessageId()); |
| } else if (pdu instanceof ReadOrigInd) { |
| messageId = new String(((ReadOrigInd) pdu).getMessageId()); |
| } else { |
| Rlog.e(TAG, "WAP Push data is neither delivery or read report type: " |
| + pdu.getClass().getCanonicalName()); |
| return -1L; |
| } |
| Cursor cursor = null; |
| try { |
| cursor = SqliteWrapper.query( |
| context, |
| context.getContentResolver(), |
| Telephony.Mms.CONTENT_URI, |
| new String[]{ Telephony.Mms.THREAD_ID }, |
| THREAD_ID_SELECTION, |
| new String[]{ |
| DatabaseUtils.sqlEscapeString(messageId), |
| Integer.toString(PduHeaders.MESSAGE_TYPE_SEND_REQ) |
| }, |
| null/*sortOrder*/); |
| if (cursor != null && cursor.moveToFirst()) { |
| return cursor.getLong(0); |
| } |
| } catch (SQLiteException e) { |
| Rlog.e(TAG, "Failed to query delivery or read report thread id", e); |
| } finally { |
| if (cursor != null) { |
| cursor.close(); |
| } |
| } |
| return -1L; |
| } |
| |
| private static final String LOCATION_SELECTION = |
| Telephony.Mms.MESSAGE_TYPE + "=? AND " + Telephony.Mms.CONTENT_LOCATION + " =?"; |
| |
| private static boolean isDuplicateNotification(Context context, NotificationInd nInd) { |
| final byte[] rawLocation = nInd.getContentLocation(); |
| if (rawLocation != null) { |
| String location = new String(rawLocation); |
| String[] selectionArgs = new String[] { location }; |
| Cursor cursor = null; |
| try { |
| cursor = SqliteWrapper.query( |
| context, |
| context.getContentResolver(), |
| Telephony.Mms.CONTENT_URI, |
| new String[]{Telephony.Mms._ID}, |
| LOCATION_SELECTION, |
| new String[]{ |
| Integer.toString(PduHeaders.MESSAGE_TYPE_NOTIFICATION_IND), |
| new String(rawLocation) |
| }, |
| null/*sortOrder*/); |
| if (cursor != null && cursor.getCount() > 0) { |
| // We already received the same notification before. |
| return true; |
| } |
| } catch (SQLiteException e) { |
| Rlog.e(TAG, "failed to query existing notification ind", e); |
| } finally { |
| if (cursor != null) { |
| cursor.close(); |
| } |
| } |
| } |
| return false; |
| } |
| } |
