/*
* Copyright (C) 2008 Esmertec AG.
* 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.mms.transaction;
import org.apache.http.HttpEntity;
import org.apache.http.HttpHost;
import org.apache.http.HttpRequest;
import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.params.ConnRouteParams;
import org.apache.http.params.HttpParams;
import org.apache.http.params.HttpProtocolParams;
import android.content.Context;
import android.net.http.AndroidHttpClient;
import android.provider.Settings;
import android.util.Config;
import android.util.Log;
import java.io.DataInputStream;
import java.io.IOException;
import java.net.SocketException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.Locale;
public class HttpUtils {
private static final String TAG = "HttpUtils";
private static final boolean DEBUG = false;
private static final boolean LOCAL_LOGV = DEBUG ? Config.LOGD : Config.LOGV;
public static final int HTTP_POST_METHOD = 1;
public static final int HTTP_GET_METHOD = 2;
// This is the value to use for the "Accept-Language" header.
// Once it becomes possible for the user to change the locale
// setting, this should no longer be static. We should call
// getHttpAcceptLanguage instead.
private static final String HDR_VALUE_ACCEPT_LANGUAGE;
static {
HDR_VALUE_ACCEPT_LANGUAGE = getHttpAcceptLanguage();
}
// Definition for necessary HTTP headers.
private static final String HDR_KEY_ACCEPT = "Accept";
private static final String HDR_KEY_ACCEPT_LANGUAGE = "Accept-Language";
private static final String HDR_KEY_X_WAP_PROFILE = "x-wap-profile";
private static final String HDR_VALUE_ACCEPT =
"*/*, application/vnd.wap.mms-message, application/vnd.wap.sic";
private HttpUtils() {
// To forbidden instantiate this class.
}
/**
* A helper method to send or retrieve data through HTTP protocol.
*
* @param token The token to identify the sending progress.
* @param url The URL used in a GET request. Null when the method is
* HTTP_POST_METHOD.
* @param pdu The data to be POST. Null when the method is HTTP_GET_METHOD.
* @param method HTTP_POST_METHOD or HTTP_GET_METHOD.
* @return A byte array which contains the response data.
* If an HTTP error code is returned, an IOException will be thrown.
* @throws IOException if any error occurred on network interface or
* an HTTP error code(>=400) returned from the server.
*/
protected static byte[] httpConnection(Context context, long token,
String url, byte[] pdu, int method, boolean isProxySet,
String proxyHost, int proxyPort) throws IOException {
if (url == null) {
throw new IllegalArgumentException("URL must not be null.");
}
if (LOCAL_LOGV) {
Log.v(TAG, "httpConnection: params list");
Log.v(TAG, "\ttoken\t\t= " + token);
Log.v(TAG, "\turl\t\t= " + url);
Log.v(TAG, "\tmethod\t\t= "
+ ((method == HTTP_POST_METHOD) ? "POST"
: ((method == HTTP_GET_METHOD) ? "GET" : "UNKNOWN")));
Log.v(TAG, "\tisProxySet\t= " + isProxySet);
Log.v(TAG, "\tproxyHost\t= " + proxyHost);
Log.v(TAG, "\tproxyPort\t= " + proxyPort);
// TODO Print out binary data more readable.
//Log.v(TAG, "\tpdu\t\t= " + Arrays.toString(pdu));
}
AndroidHttpClient client = null;
try {
// Make sure to use a proxy which supports CONNECT.
URI hostUrl = new URI(url);
HttpHost target = new HttpHost(
hostUrl.getHost(), hostUrl.getPort(),
HttpHost.DEFAULT_SCHEME_NAME);
client = createHttpClient();
HttpRequest req = null;
switch(method) {
case HTTP_POST_METHOD:
ProgressCallbackEntity entity = new ProgressCallbackEntity(
context, token, pdu);
// Set request content type.
entity.setContentType("application/vnd.wap.mms-message");
HttpPost post = new HttpPost(url);
post.setEntity(entity);
req = post;
break;
case HTTP_GET_METHOD:
req = new HttpGet(url);
break;
default:
Log.e(TAG, "Unknown HTTP method: " + method
+ ". Must be one of POST[" + HTTP_POST_METHOD
+ "] or GET[" + HTTP_GET_METHOD + "].");
return null;
}
// Set route parameters for the request.
HttpParams params = client.getParams();
if (isProxySet) {
ConnRouteParams.setDefaultProxy(
params, new HttpHost(proxyHost, proxyPort));
}
req.setParams(params);
// Set necessary HTTP headers for MMS transmission.
req.addHeader(HDR_KEY_ACCEPT, HDR_VALUE_ACCEPT);
{
String xWapProfileUrl = getXWapProfileHeaderValue(context);
if (xWapProfileUrl != null) {
req.addHeader(HDR_KEY_X_WAP_PROFILE, xWapProfileUrl);
}
}
req.addHeader(HDR_KEY_ACCEPT_LANGUAGE, HDR_VALUE_ACCEPT_LANGUAGE);
HttpResponse response = client.execute(target, req);
StatusLine status = response.getStatusLine();
if (status.getStatusCode() != 200) { // HTTP 200 is success.
throw new IOException("HTTP error: " + status.getReasonPhrase());
}
HttpEntity entity = response.getEntity();
byte[] body = null;
if (entity != null) {
try {
if (entity.getContentLength() > 0) {
body = new byte[(int) entity.getContentLength()];
DataInputStream dis = new DataInputStream(entity.getContent());
try {
dis.readFully(body);
} finally {
try {
dis.close();
} catch (IOException e) {
Log.e(TAG, "Error closing input stream: " + e.getMessage());
}
}
}
} finally {
if (entity != null) {
entity.consumeContent();
}
}
}
return body;
} catch (URISyntaxException e) {
handleHttpConnectionException(e);
} catch (IllegalStateException e) {
handleHttpConnectionException(e);
} catch (IllegalArgumentException e) {
handleHttpConnectionException(e);
} catch (SocketException e) {
handleHttpConnectionException(e);
} catch (Exception e) {
handleHttpConnectionException(e);
}
finally {
if (client != null) {
client.close();
}
}
return null;
}
private static String getXWapProfileHeaderValue(Context context) {
return Settings.Gservices.getString(
context.getContentResolver(),
Settings.Gservices.MMS_X_WAP_PROFILE_URL);
}
private static void handleHttpConnectionException(Exception exception)
throws IOException {
// Inner exception should be logged to make life easier.
Log.e(TAG, exception.getMessage());
throw new IOException(exception.getMessage());
}
private static AndroidHttpClient createHttpClient() {
AndroidHttpClient client
= AndroidHttpClient.newInstance("Android-Mms/0.1");
HttpParams params = client.getParams();
HttpProtocolParams.setContentCharset(params, "UTF-8");
return client;
}
/**
* Return the Accept-Language header. Use the current locale plus
* US if we are in a different locale than US.
*/
private static String getHttpAcceptLanguage() {
Locale locale = Locale.getDefault();
StringBuilder builder = new StringBuilder();
addLocaleToHttpAcceptLanguage(builder, locale);
if (!locale.equals(Locale.US)) {
if (builder.length() > 0) {
builder.append(", ");
}
addLocaleToHttpAcceptLanguage(builder, Locale.US);
}
return builder.toString();
}
private static void addLocaleToHttpAcceptLanguage(
StringBuilder builder, Locale locale) {
String language = locale.getLanguage();
if (language != null) {
builder.append(language);
String country = locale.getCountry();
if (country != null) {
builder.append("-");
builder.append(country);
}
}
}
}
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