| /* |
| * 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 android.app.Activity; |
| import android.app.AppOpsManager; |
| import android.content.BroadcastReceiver; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.ServiceConnection; |
| import android.os.IBinder; |
| import android.os.RemoteException; |
| import android.provider.Telephony.Sms.Intents; |
| import android.telephony.Rlog; |
| |
| import com.android.internal.telephony.uicc.IccUtils; |
| |
| /** |
| * 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)); |
| |
| int index = 0; |
| int transactionId = pdu[index++] & 0xFF; |
| int pduType = pdu[index++] & 0xFF; |
| |
| 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); |
| } |
| |
| /** |
| * 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()); |
| |
| 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()); |
| |
| // 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; |
| } |
| } |
