com.tingtingapps.securesms.mms.IncomingLegacyMmsConnection.java Source code

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Here is the source code for com.tingtingapps.securesms.mms.IncomingLegacyMmsConnection.java

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/**
 * Copyright (C) 2015 Open Whisper Systems
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.tingtingapps.securesms.mms;

import android.content.Context;
import android.net.Uri;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.util.Log;

import org.apache.http.Header;
import org.apache.http.HttpHost;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.HttpGetHC4;
import org.apache.http.client.methods.HttpUriRequest;

import java.io.IOException;
import java.util.Arrays;

import ws.com.google.android.mms.InvalidHeaderValueException;
import ws.com.google.android.mms.pdu.NotifyRespInd;
import ws.com.google.android.mms.pdu.PduComposer;
import ws.com.google.android.mms.pdu.PduHeaders;
import ws.com.google.android.mms.pdu.PduParser;
import ws.com.google.android.mms.pdu.RetrieveConf;

@SuppressWarnings("deprecation")
public class IncomingLegacyMmsConnection extends LegacyMmsConnection implements IncomingMmsConnection {
    private static final String TAG = IncomingLegacyMmsConnection.class.getSimpleName();

    public IncomingLegacyMmsConnection(Context context) throws ApnUnavailableException {
        super(context);
    }

    private HttpUriRequest constructRequest(Apn contentApn, boolean useProxy) throws IOException {
        HttpGetHC4 request = new HttpGetHC4(contentApn.getMmsc());
        for (Header header : getBaseHeaders()) {
            request.addHeader(header);
        }
        if (useProxy) {
            HttpHost proxy = new HttpHost(contentApn.getProxy(), contentApn.getPort());
            request.setConfig(RequestConfig.custom().setProxy(proxy).build());
        }
        return request;
    }

    @Override
    public @Nullable RetrieveConf retrieve(@NonNull String contentLocation, byte[] transactionId)
            throws MmsRadioException, ApnUnavailableException, IOException {
        MmsRadio radio = MmsRadio.getInstance(context);
        Apn contentApn = new Apn(contentLocation, apn.getProxy(), Integer.toString(apn.getPort()),
                apn.getUsername(), apn.getPassword());
        if (isCdmaDevice()) {
            Log.w(TAG, "Connecting directly...");
            try {
                return retrieve(contentApn, transactionId, false, false);
            } catch (IOException | ApnUnavailableException e) {
                Log.w(TAG, e);
            }
        }

        Log.w(TAG, "Changing radio to MMS mode..");
        radio.connect();

        try {
            Log.w(TAG, "Downloading in MMS mode with proxy...");

            try {
                return retrieve(contentApn, transactionId, true, true);
            } catch (IOException | ApnUnavailableException e) {
                Log.w(TAG, e);
            }

            Log.w(TAG, "Downloading in MMS mode without proxy...");

            return retrieve(contentApn, transactionId, true, false);

        } finally {
            radio.disconnect();
        }
    }

    public RetrieveConf retrieve(Apn contentApn, byte[] transactionId, boolean usingMmsRadio,
            boolean useProxyIfAvailable) throws IOException, ApnUnavailableException {
        byte[] pdu = null;

        final boolean useProxy = useProxyIfAvailable && contentApn.hasProxy();
        final String targetHost = useProxy ? contentApn.getProxy() : Uri.parse(contentApn.getMmsc()).getHost();
        if (checkRouteToHost(context, targetHost, usingMmsRadio)) {
            Log.w(TAG, "got successful route to host " + targetHost);
            pdu = execute(constructRequest(contentApn, useProxy));
        }

        if (pdu == null) {
            throw new IOException("Connection manager could not obtain route to host.");
        }

        RetrieveConf retrieved = (RetrieveConf) new PduParser(pdu).parse();

        if (retrieved == null) {
            Log.w(TAG, "Couldn't parse PDU, byte response: " + Arrays.toString(pdu));
            Log.w(TAG, "Couldn't parse PDU, ASCII:         " + new String(pdu));
            throw new IOException("Bad retrieved PDU");
        }

        sendRetrievedAcknowledgement(transactionId, usingMmsRadio, useProxy);
        return retrieved;
    }

    private void sendRetrievedAcknowledgement(byte[] transactionId, boolean usingRadio, boolean useProxy)
            throws ApnUnavailableException {
        try {
            NotifyRespInd notifyResponse = new NotifyRespInd(PduHeaders.CURRENT_MMS_VERSION, transactionId,
                    PduHeaders.STATUS_RETRIEVED);

            OutgoingLegacyMmsConnection connection = new OutgoingLegacyMmsConnection(context);
            connection.sendNotificationReceived(new PduComposer(context, notifyResponse).make(), usingRadio,
                    useProxy);
        } catch (InvalidHeaderValueException | IOException e) {
            Log.w(TAG, e);
        }
    }
}