Java tutorial
/** * Copyright (C) 2011 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.ConnectivityManager; import android.telephony.TelephonyManager; import android.text.TextUtils; import android.util.Log; import org.apache.http.Header; import org.apache.http.auth.AuthScope; import org.apache.http.auth.UsernamePasswordCredentials; import org.apache.http.client.CredentialsProvider; import org.apache.http.client.config.RequestConfig; import org.apache.http.client.methods.CloseableHttpResponse; import org.apache.http.client.methods.HttpUriRequest; import org.apache.http.impl.NoConnectionReuseStrategyHC4; import org.apache.http.impl.client.BasicCredentialsProvider; import org.apache.http.impl.client.CloseableHttpClient; import org.apache.http.impl.client.HttpClients; import org.apache.http.impl.client.LaxRedirectStrategy; import org.apache.http.impl.conn.BasicHttpClientConnectionManager; import org.apache.http.message.BasicHeader; import com.tingtingapps.securesms.database.ApnDatabase; import com.tingtingapps.securesms.util.TelephonyUtil; import com.tingtingapps.securesms.util.Conversions; import com.tingtingapps.securesms.util.TextSecurePreferences; import com.tingtingapps.securesms.util.Util; import org.whispersystems.libaxolotl.util.guava.Optional; import java.io.BufferedInputStream; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.InputStream; import java.lang.reflect.InvocationTargetException; import java.lang.reflect.Method; import java.net.InetAddress; import java.net.URL; import java.util.LinkedList; import java.util.List; @SuppressWarnings("deprecation") public abstract class LegacyMmsConnection { public static final String USER_AGENT = "Android-Mms/2.0"; private static final String TAG = LegacyMmsConnection.class.getSimpleName(); protected final Context context; protected final Apn apn; protected LegacyMmsConnection(Context context) throws ApnUnavailableException { this.context = context; this.apn = getApn(context); } public static Apn getApn(Context context) throws ApnUnavailableException { try { Optional<Apn> params = ApnDatabase.getInstance(context) .getMmsConnectionParameters(TelephonyUtil.getMccMnc(context), TelephonyUtil.getApn(context)); if (!params.isPresent()) { throw new ApnUnavailableException("No parameters available from ApnDefaults."); } return params.get(); } catch (IOException ioe) { throw new ApnUnavailableException("ApnDatabase threw an IOException", ioe); } } protected boolean isCdmaDevice() { return ((TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE)) .getPhoneType() == TelephonyManager.PHONE_TYPE_CDMA; } @SuppressWarnings("TryWithIdenticalCatches") protected static boolean checkRouteToHost(Context context, String host, boolean usingMmsRadio) throws IOException { InetAddress inetAddress = InetAddress.getByName(host); if (!usingMmsRadio) { if (inetAddress.isSiteLocalAddress()) { throw new IOException("RFC1918 address in non-MMS radio situation!"); } Log.w(TAG, "returning vacuous success since MMS radio is not in use"); return true; } if (inetAddress == null) { throw new IOException("Unable to lookup host: InetAddress.getByName() returned null."); } byte[] ipAddressBytes = inetAddress.getAddress(); if (ipAddressBytes == null) { Log.w(TAG, "resolved IP address bytes are null, returning true to attempt a connection anyway."); return true; } Log.w(TAG, "Checking route to address: " + host + ", " + inetAddress.getHostAddress()); ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); try { final Method requestRouteMethod = manager.getClass().getMethod("requestRouteToHostAddress", Integer.TYPE, InetAddress.class); final boolean routeToHostObtained = (Boolean) requestRouteMethod.invoke(manager, MmsRadio.TYPE_MOBILE_MMS, inetAddress); Log.w(TAG, "requestRouteToHostAddress(" + inetAddress + ") -> " + routeToHostObtained); return routeToHostObtained; } catch (NoSuchMethodException nsme) { Log.w(TAG, nsme); } catch (IllegalAccessException iae) { Log.w(TAG, iae); } catch (InvocationTargetException ite) { Log.w(TAG, ite); } final int ipAddress = Conversions.byteArrayToIntLittleEndian(ipAddressBytes, 0); final boolean routeToHostObtained = manager.requestRouteToHost(MmsRadio.TYPE_MOBILE_MMS, ipAddress); Log.w(TAG, "requestRouteToHost(" + ipAddress + ") -> " + routeToHostObtained); return routeToHostObtained; } protected static byte[] parseResponse(InputStream is) throws IOException { InputStream in = new BufferedInputStream(is); ByteArrayOutputStream baos = new ByteArrayOutputStream(); Util.copy(in, baos); Log.w(TAG, "Received full server response, " + baos.size() + " bytes"); return baos.toByteArray(); } protected CloseableHttpClient constructHttpClient() throws IOException { RequestConfig config = RequestConfig.custom().setConnectTimeout(20 * 1000) .setConnectionRequestTimeout(20 * 1000).setSocketTimeout(20 * 1000).setMaxRedirects(20).build(); URL mmsc = new URL(apn.getMmsc()); CredentialsProvider credsProvider = new BasicCredentialsProvider(); if (apn.hasAuthentication()) { credsProvider.setCredentials( new AuthScope(mmsc.getHost(), mmsc.getPort() > -1 ? mmsc.getPort() : mmsc.getDefaultPort()), new UsernamePasswordCredentials(apn.getUsername(), apn.getPassword())); } return HttpClients.custom().setConnectionReuseStrategy(new NoConnectionReuseStrategyHC4()) .setRedirectStrategy(new LaxRedirectStrategy()) .setUserAgent(TextSecurePreferences.getMmsUserAgent(context, USER_AGENT)) .setConnectionManager(new BasicHttpClientConnectionManager()).setDefaultRequestConfig(config) .setDefaultCredentialsProvider(credsProvider).build(); } protected byte[] execute(HttpUriRequest request) throws IOException { Log.w(TAG, "connecting to " + apn.getMmsc()); CloseableHttpClient client = null; CloseableHttpResponse response = null; try { client = constructHttpClient(); response = client.execute(request); Log.w(TAG, "* response code: " + response.getStatusLine()); if (response.getStatusLine().getStatusCode() == 200) { return parseResponse(response.getEntity().getContent()); } } finally { if (response != null) response.close(); if (client != null) client.close(); } throw new IOException("unhandled response code"); } protected List<Header> getBaseHeaders() { final String number = TelephonyUtil.getManager(context).getLine1Number(); return new LinkedList<Header>() { { add(new BasicHeader("Accept", "*/*, application/vnd.wap.mms-message, application/vnd.wap.sic")); add(new BasicHeader("x-wap-profile", "http://www.google.com/oha/rdf/ua-profile-kila.xml")); add(new BasicHeader("Content-Type", "application/vnd.wap.mms-message")); add(new BasicHeader("x-carrier-magic", "http://magic.google.com")); if (!TextUtils.isEmpty(number)) { add(new BasicHeader("x-up-calling-line-id", number)); add(new BasicHeader("X-MDN", number)); } } }; } public static class Apn { public static Apn EMPTY = new Apn("", "", "", "", ""); private final String mmsc; private final String proxy; private final String port; private final String username; private final String password; public Apn(String mmsc, String proxy, String port, String username, String password) { this.mmsc = mmsc; this.proxy = proxy; this.port = port; this.username = username; this.password = password; } public Apn(Apn customApn, Apn defaultApn, boolean useCustomMmsc, boolean useCustomProxy, boolean useCustomProxyPort, boolean useCustomUsername, boolean useCustomPassword) { this.mmsc = useCustomMmsc ? customApn.mmsc : defaultApn.mmsc; this.proxy = useCustomProxy ? customApn.proxy : defaultApn.proxy; this.port = useCustomProxyPort ? customApn.port : defaultApn.port; this.username = useCustomUsername ? customApn.username : defaultApn.username; this.password = useCustomPassword ? customApn.password : defaultApn.password; } public boolean hasProxy() { return !TextUtils.isEmpty(proxy); } public String getMmsc() { return mmsc; } public String getProxy() { return hasProxy() ? proxy : null; } public int getPort() { return TextUtils.isEmpty(port) ? 80 : Integer.parseInt(port); } public boolean hasAuthentication() { return !TextUtils.isEmpty(username); } public String getUsername() { return username; } public String getPassword() { return password; } @Override public String toString() { return Apn.class.getSimpleName() + "{ mmsc: \"" + mmsc + "\"" + ", proxy: " + (proxy == null ? "none" : '"' + proxy + '"') + ", port: " + (port == null ? "(none)" : port) + ", user: " + (username == null ? "none" : '"' + username + '"') + ", pass: " + (password == null ? "none" : '"' + password + '"') + " }"; } } }