am 7627d2cd: Merge "Use network-specific HTTP proxy settings in captive portal...

package com.android.captiveportallogin;

import android.app.Activity;

import android.app.LoadedApk;

import android.content.Context;

import android.content.Intent;

import android.graphics.Bitmap;

import android.net.ConnectivityManager;

import android.net.ConnectivityManager.NetworkCallback;

import android.net.LinkProperties;

import android.net.Network;

import android.net.NetworkCapabilities;

import android.net.NetworkRequest;

import android.net.Proxy;

import android.net.ProxyInfo;

import android.net.Uri;

import android.os.Bundle;

import android.provider.Settings;

import android.provider.Settings.Global;

import android.util.ArrayMap;

import android.util.Log;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import java.net.MalformedURLException;

import java.net.URL;

import java.lang.InterruptedException;

import java.lang.reflect.Field;

import java.lang.reflect.Method;

public class CaptivePortalLoginActivity extends Activity {

    private static final String TAG = "CaptivePortalLogin";

    private static final String DEFAULT_SERVER = "clients3.google.com";

    private static final int SOCKET_TIMEOUT_MS = 10000;

            done(true);

        }

        setContentView(R.layout.activity_captive_portal_login);

        getActionBar().setDisplayShowHomeEnabled(false);

        mNetId = Integer.parseInt(getIntent().getStringExtra(Intent.EXTRA_TEXT));

        final Network network = new Network(mNetId);

        ConnectivityManager.setProcessDefaultNetwork(network);

        // Set HTTP proxy system properties to those of the selected Network.

        final LinkProperties lp = ConnectivityManager.from(this).getLinkProperties(network);

        if (lp != null) {

            final ProxyInfo proxyInfo = lp.getHttpProxy();

            String host = "";

            String port = "";

            String exclList = "";

            Uri pacFileUrl = Uri.EMPTY;

            if (proxyInfo != null) {

                host = proxyInfo.getHost();

                port = Integer.toString(proxyInfo.getPort());

                exclList = proxyInfo.getExclusionListAsString();

                pacFileUrl = proxyInfo.getPacFileUrl();

            }

            Proxy.setHttpProxySystemProperty(host, port, exclList, pacFileUrl);

            Log.v(TAG, "Set proxy system properties to " + proxyInfo);

        }

        // Proxy system properties must be initialized before setContentView is called because

        // setContentView initializes the WebView logic which in turn reads the system properties.

        setContentView(R.layout.activity_captive_portal_login);

        getActionBar().setDisplayShowHomeEnabled(false);

        // Exit app if Network disappears.

        final NetworkCapabilities networkCapabilities =

                ConnectivityManager.from(this).getNetworkCapabilities(network);

        }

        ConnectivityManager.from(this).registerNetworkCallback(builder.build(), mNetworkCallback);

        WebView myWebView = (WebView) findViewById(R.id.webview);

        final WebView myWebView = (WebView) findViewById(R.id.webview);

        myWebView.clearCache(true);

        WebSettings webSettings = myWebView.getSettings();

        webSettings.setJavaScriptEnabled(true);

        myWebView.setWebViewClient(new MyWebViewClient());

        myWebView.setWebChromeClient(new MyWebChromeClient());

        myWebView.loadUrl(mURL.toString());

        // Start initial page load so WebView finishes loading proxy settings.

        // Actual load of mUrl is initiated by MyWebViewClient.

        myWebView.loadData("", "text/html", null);

    }

    // Find WebView's proxy BroadcastReceiver and prompt it to read proxy system properties.

    private void setWebViewProxy() {

        LoadedApk loadedApk = getApplication().mLoadedApk;

        try {

            Field receiversField = LoadedApk.class.getDeclaredField("mReceivers");

            receiversField.setAccessible(true);

            ArrayMap receivers = (ArrayMap) receiversField.get(loadedApk);

            for (Object receiverMap : receivers.values()) {

                for (Object rec : ((ArrayMap) receiverMap).keySet()) {

                    Class clazz = rec.getClass();

                    if (clazz.getName().contains("ProxyChangeListener")) {

                        Method onReceiveMethod = clazz.getDeclaredMethod("onReceive", Context.class,

                                Intent.class);

                        Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION);

                        onReceiveMethod.invoke(rec, getApplicationContext(), intent);

                        Log.v(TAG, "Prompting WebView proxy reload.");

                    }

                }

            }

        } catch (Exception e) {

            Log.e(TAG, "Exception while setting WebView proxy: " + e);

        }

    }

    private void done(boolean use_network) {

    }

    private class MyWebViewClient extends WebViewClient {

        private boolean firstPageLoad = true;

        @Override

        public void onPageStarted(WebView view, String url, Bitmap favicon) {

            if (firstPageLoad) return;

            testForCaptivePortal();

        }

        @Override

        public void onPageFinished(WebView view, String url) {

            if (firstPageLoad) {

                firstPageLoad = false;

                // Now that WebView has loaded at least one page we know it has read in the proxy

                // settings.  Now prompt the WebView read the Network-specific proxy settings.

                setWebViewProxy();

                // Load the real page.

                view.loadUrl(mURL.toString());

                return;

            }

            testForCaptivePortal();

        }

    }