1/*
2 * Copyright (C) 2007-2008 Esmertec AG.
3 * Copyright (C) 2007-2008 The Android Open Source Project
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 *      http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18package com.android.mms.transaction;
19
20import java.util.Arrays;
21
22import android.content.ContentUris;
23import android.content.ContentValues;
24import android.content.Context;
25import android.database.sqlite.SqliteWrapper;
26import android.net.Uri;
27import android.provider.Telephony.Mms;
28import android.provider.Telephony.Mms.Sent;
29import android.text.TextUtils;
30import android.util.Log;
31
32import com.android.mms.LogTag;
33import com.android.mms.ui.MessageUtils;
34import com.android.mms.util.RateController;
35import com.android.mms.util.SendingProgressTokenManager;
36import com.google.android.mms.pdu.EncodedStringValue;
37import com.google.android.mms.pdu.PduComposer;
38import com.google.android.mms.pdu.PduHeaders;
39import com.google.android.mms.pdu.PduParser;
40import com.google.android.mms.pdu.PduPersister;
41import com.google.android.mms.pdu.SendConf;
42import com.google.android.mms.pdu.SendReq;
43
44/**
45 * The SendTransaction is responsible for sending multimedia messages
46 * (M-Send.req) to the MMSC server.  It:
47 *
48 * <ul>
49 * <li>Loads the multimedia message from storage (Outbox).
50 * <li>Packs M-Send.req and sends it.
51 * <li>Retrieves confirmation data from the server  (M-Send.conf).
52 * <li>Parses confirmation message and handles it.
53 * <li>Moves sent multimedia message from Outbox to Sent.
54 * <li>Notifies the TransactionService about successful completion.
55 * </ul>
56 */
57public class SendTransaction extends Transaction implements Runnable {
58    private static final String TAG = LogTag.TAG;
59
60    private Thread mThread;
61    public final Uri mSendReqURI;
62
63    public SendTransaction(Context context,
64            int transId, TransactionSettings connectionSettings, String uri) {
65        super(context, transId, connectionSettings);
66        mSendReqURI = Uri.parse(uri);
67        mId = uri;
68
69        // Attach the transaction to the instance of RetryScheduler.
70        attach(RetryScheduler.getInstance(context));
71    }
72
73    /*
74     * (non-Javadoc)
75     * @see com.android.mms.Transaction#process()
76     */
77    @Override
78    public void process() {
79        mThread = new Thread(this, "SendTransaction");
80        mThread.start();
81    }
82
83    public void run() {
84        try {
85            RateController rateCtlr = RateController.getInstance();
86            if (rateCtlr.isLimitSurpassed() && !rateCtlr.isAllowedByUser()) {
87                Log.e(TAG, "Sending rate limit surpassed.");
88                return;
89            }
90
91            // Load M-Send.req from outbox
92            PduPersister persister = PduPersister.getPduPersister(mContext);
93            SendReq sendReq = (SendReq) persister.load(mSendReqURI);
94
95            // Update the 'date' field of the PDU right before sending it.
96            long date = System.currentTimeMillis() / 1000L;
97            sendReq.setDate(date);
98
99            // Persist the new date value into database.
100            ContentValues values = new ContentValues(1);
101            values.put(Mms.DATE, date);
102            SqliteWrapper.update(mContext, mContext.getContentResolver(),
103                                 mSendReqURI, values, null, null);
104
105            // fix bug 2100169: insert the 'from' address per spec
106            String lineNumber = MessageUtils.getLocalNumber();
107            if (!TextUtils.isEmpty(lineNumber)) {
108                sendReq.setFrom(new EncodedStringValue(lineNumber));
109            }
110
111            // Pack M-Send.req, send it, retrieve confirmation data, and parse it
112            long tokenKey = ContentUris.parseId(mSendReqURI);
113            byte[] response = sendPdu(SendingProgressTokenManager.get(tokenKey),
114                                      new PduComposer(mContext, sendReq).make());
115            SendingProgressTokenManager.remove(tokenKey);
116
117            if (Log.isLoggable(LogTag.TRANSACTION, Log.VERBOSE)) {
118                String respStr = new String(response);
119                Log.d(TAG, "[SendTransaction] run: send mms msg (" + mId + "), resp=" + respStr);
120            }
121
122            SendConf conf = (SendConf) new PduParser(response).parse();
123            if (conf == null) {
124                Log.e(TAG, "No M-Send.conf received.");
125            }
126
127            // Check whether the responding Transaction-ID is consistent
128            // with the sent one.
129            byte[] reqId = sendReq.getTransactionId();
130            byte[] confId = conf.getTransactionId();
131            if (!Arrays.equals(reqId, confId)) {
132                Log.e(TAG, "Inconsistent Transaction-ID: req="
133                        + new String(reqId) + ", conf=" + new String(confId));
134                return;
135            }
136
137            // From now on, we won't save the whole M-Send.conf into
138            // our database. Instead, we just save some interesting fields
139            // into the related M-Send.req.
140            values = new ContentValues(2);
141            int respStatus = conf.getResponseStatus();
142            values.put(Mms.RESPONSE_STATUS, respStatus);
143
144            if (respStatus != PduHeaders.RESPONSE_STATUS_OK) {
145                SqliteWrapper.update(mContext, mContext.getContentResolver(),
146                                     mSendReqURI, values, null, null);
147                Log.e(TAG, "Server returned an error code: " + respStatus);
148                return;
149            }
150
151            String messageId = PduPersister.toIsoString(conf.getMessageId());
152            values.put(Mms.MESSAGE_ID, messageId);
153            SqliteWrapper.update(mContext, mContext.getContentResolver(),
154                                 mSendReqURI, values, null, null);
155
156            // Move M-Send.req from Outbox into Sent.
157            Uri uri = persister.move(mSendReqURI, Sent.CONTENT_URI);
158
159            mTransactionState.setState(TransactionState.SUCCESS);
160            mTransactionState.setContentUri(uri);
161        } catch (Throwable t) {
162            Log.e(TAG, Log.getStackTraceString(t));
163        } finally {
164            if (mTransactionState.getState() != TransactionState.SUCCESS) {
165                mTransactionState.setState(TransactionState.FAILED);
166                mTransactionState.setContentUri(mSendReqURI);
167                Log.e(TAG, "Delivery failed.");
168            }
169            notifyObservers();
170        }
171    }
172
173    @Override
174    public int getType() {
175        return SEND_TRANSACTION;
176    }
177}
178