Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import android.content.Context;

import android.util.Log;
import android.webkit.WebView;
import org.apache.http.HttpHost;

import java.lang.reflect.Field;

import java.lang.reflect.Method;

public class Main {
    private static final String LOG_TAG = "ProxyUtils";

    private static boolean setProxyPreICS(WebView webView, String host, final int port) {
        HttpHost proxyServer;
        if (null == host) {
            proxyServer = null;
        } else {
            proxyServer = new HttpHost(host, port);
        }
        Class networkClass = null;
        Object network = null;
        try {
            networkClass = Class.forName("android.webkit.Network");
            if (networkClass == null) {
                Log.e(LOG_TAG, "failed to get class for android.webkit.Network");
                return false;
            }
            Method getInstanceMethod = networkClass.getMethod("getInstance", Context.class);
            if (getInstanceMethod == null) {
                Log.e(LOG_TAG, "failed to get getInstance method");
            }
            network = getInstanceMethod.invoke(networkClass, new Object[] { webView.getContext() });
        } catch (Exception ex) {
            Log.e(LOG_TAG, "error getting network: " + ex);
            return false;
        }
        if (network == null) {
            Log.e(LOG_TAG, "error getting network: network is null");
            return false;
        }
        Object requestQueue = null;
        try {
            Field requestQueueField = networkClass.getDeclaredField("mRequestQueue");
            requestQueue = getFieldValueSafely(requestQueueField, network);
        } catch (Exception ex) {
            Log.e(LOG_TAG, "error getting field value");
            return false;
        }
        if (requestQueue == null) {
            Log.e(LOG_TAG, "Request queue is null");
            return false;
        }
        Field proxyHostField = null;
        try {
            Class requestQueueClass = Class.forName("android.net.http.RequestQueue");
            proxyHostField = requestQueueClass.getDeclaredField("mProxyHost");
        } catch (Exception ex) {
            Log.e(LOG_TAG, "error getting proxy host field");
            return false;
        }

        boolean temp = proxyHostField.isAccessible();
        try {
            proxyHostField.setAccessible(true);
            proxyHostField.set(requestQueue, proxyServer);
        } catch (Exception ex) {
            Log.e(LOG_TAG, "error setting proxy host");
        } finally {
            proxyHostField.setAccessible(temp);
        }
        Log.d(LOG_TAG, "Setting proxy with <= 3.2 API successful!");
        return true;
    }

    private static Object getFieldValueSafely(Field field, Object classInstance)
            throws IllegalArgumentException, IllegalAccessException {
        boolean oldAccessibleValue = field.isAccessible();
        field.setAccessible(true);
        Object result = field.get(classInstance);
        field.setAccessible(oldAccessibleValue);
        return result;
    }
}