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/*
* Copyright (C) 2007 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 android.net;
import android.content.ContentResolver;
import android.content.Context;
import android.os.SystemProperties;
import android.provider.Settings;
import android.util.Log;
import junit.framework.Assert;
/**
* A convenience class for accessing the user and default proxy
* settings.
*/
final public class Proxy {
// Set to true to enable extra debugging.
static final private boolean DEBUG = false;
static final public String PROXY_CHANGE_ACTION =
"android.intent.action.PROXY_CHANGE";
/**
* Return the proxy host set by the user.
* @param ctx A Context used to get the settings for the proxy host.
* @return String containing the host name. If the user did not set a host
* name it returns the default host. A null value means that no
* host is to be used.
*/
static final public String getHost(Context ctx) {
ContentResolver contentResolver = ctx.getContentResolver();
Assert.assertNotNull(contentResolver);
String host = Settings.Secure.getString(
contentResolver,
Settings.Secure.HTTP_PROXY);
if (host != null) {
int i = host.indexOf(':');
if (i == -1) {
if (DEBUG) {
Assert.assertTrue(host.length() == 0);
}
return null;
}
return host.substring(0, i);
}
return getDefaultHost();
}
/**
* Return the proxy port set by the user.
* @param ctx A Context used to get the settings for the proxy port.
* @return The port number to use or -1 if no proxy is to be used.
*/
static final public int getPort(Context ctx) {
ContentResolver contentResolver = ctx.getContentResolver();
Assert.assertNotNull(contentResolver);
String host = Settings.Secure.getString(
contentResolver,
Settings.Secure.HTTP_PROXY);
if (host != null) {
int i = host.indexOf(':');
if (i == -1) {
if (DEBUG) {
Assert.assertTrue(host.length() == 0);
}
return -1;
}
if (DEBUG) {
Assert.assertTrue(i < host.length());
}
return Integer.parseInt(host.substring(i+1));
}
return getDefaultPort();
}
/**
* Return the default proxy host specified by the carrier.
* @return String containing the host name or null if there is no proxy for
* this carrier.
*/
static final public String getDefaultHost() {
String host = SystemProperties.get("net.gprs.http-proxy");
if (host != null) {
Uri u = Uri.parse(host);
host = u.getHost();
return host;
} else {
return null;
}
}
/**
* Return the default proxy port specified by the carrier.
* @return The port number to be used with the proxy host or -1 if there is
* no proxy for this carrier.
*/
static final public int getDefaultPort() {
String host = SystemProperties.get("net.gprs.http-proxy");
if (host != null) {
Uri u = Uri.parse(host);
return u.getPort();
} else {
return -1;
}
}
};
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