124 lines
3.9 KiB
Java
124 lines
3.9 KiB
Java
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.net;
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import android.content.ContentResolver;
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import android.content.Context;
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import android.os.SystemProperties;
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import android.provider.Settings;
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import android.util.Log;
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import junit.framework.Assert;
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/**
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* A convenience class for accessing the user and default proxy
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* settings.
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*/
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final public class Proxy {
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// Set to true to enable extra debugging.
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static final private boolean DEBUG = false;
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static final public String PROXY_CHANGE_ACTION =
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"android.intent.action.PROXY_CHANGE";
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/**
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* Return the proxy host set by the user.
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* @param ctx A Context used to get the settings for the proxy host.
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* @return String containing the host name. If the user did not set a host
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* name it returns the default host. A null value means that no
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* host is to be used.
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*/
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static final public String getHost(Context ctx) {
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ContentResolver contentResolver = ctx.getContentResolver();
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Assert.assertNotNull(contentResolver);
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String host = Settings.Secure.getString(
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contentResolver,
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Settings.Secure.HTTP_PROXY);
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if (host != null) {
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int i = host.indexOf(':');
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if (i == -1) {
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if (DEBUG) {
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Assert.assertTrue(host.length() == 0);
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}
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return null;
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}
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return host.substring(0, i);
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}
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return getDefaultHost();
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}
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/**
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* Return the proxy port set by the user.
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* @param ctx A Context used to get the settings for the proxy port.
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* @return The port number to use or -1 if no proxy is to be used.
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*/
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static final public int getPort(Context ctx) {
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ContentResolver contentResolver = ctx.getContentResolver();
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Assert.assertNotNull(contentResolver);
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String host = Settings.Secure.getString(
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contentResolver,
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Settings.Secure.HTTP_PROXY);
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if (host != null) {
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int i = host.indexOf(':');
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if (i == -1) {
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if (DEBUG) {
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Assert.assertTrue(host.length() == 0);
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}
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return -1;
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}
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if (DEBUG) {
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Assert.assertTrue(i < host.length());
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}
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return Integer.parseInt(host.substring(i+1));
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}
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return getDefaultPort();
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}
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/**
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* Return the default proxy host specified by the carrier.
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* @return String containing the host name or null if there is no proxy for
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* this carrier.
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*/
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static final public String getDefaultHost() {
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String host = SystemProperties.get("net.gprs.http-proxy");
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if (host != null) {
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Uri u = Uri.parse(host);
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host = u.getHost();
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return host;
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} else {
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return null;
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}
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}
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/**
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* Return the default proxy port specified by the carrier.
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* @return The port number to be used with the proxy host or -1 if there is
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* no proxy for this carrier.
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*/
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static final public int getDefaultPort() {
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String host = SystemProperties.get("net.gprs.http-proxy");
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if (host != null) {
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Uri u = Uri.parse(host);
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return u.getPort();
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} else {
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return -1;
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}
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}
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};
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