Example usage for android.webkit HttpAuthHandler post

Introduction

In this page you can find the example usage for android.webkit HttpAuthHandler post.

Prototype

public final boolean post(Runnable r) 

Source Link

Document

Causes the Runnable r to be added to the message queue.

Usage

From source file:com.mediaexplorer.remote.MexRemoteActivity.java

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);//from  www .  ja v  a  2s .c o  m

    this.setTitle(R.string.app_name);
    dbg = "MexWebremote";

    text_view = (TextView) findViewById(R.id.text);

    web_view = (WebView) findViewById(R.id.link_view);
    web_view.getSettings().setJavaScriptEnabled(true);/*
                                                      /* Future: setOverScrollMode is API level >8
                                                      * web_view.setOverScrollMode (OVER_SCROLL_NEVER);
                                                      */

    web_view.setBackgroundColor(0);

    web_view.setWebViewClient(new WebViewClient() {
        /* for some reason we only get critical errors so an auth error
         * is not handled here which is why there is some crack that test
         * the connection with a special httpclient
         */
        @Override
        public void onReceivedHttpAuthRequest(final WebView view, final HttpAuthHandler handler,
                final String host, final String realm) {
            String[] userpass = new String[2];

            userpass = view.getHttpAuthUsernamePassword(host, realm);

            HttpResponse response = null;
            HttpGet httpget;
            DefaultHttpClient httpclient;
            String target_host;
            int target_port;

            target_host = MexRemoteActivity.this.target_host;
            target_port = MexRemoteActivity.this.target_port;

            /* We may get null from getHttpAuthUsernamePassword which will
             * break the setCredentials so junk used instead to keep
             * it happy.
             */

            Log.d(dbg, "using the set httpauth, testing auth using client");
            try {
                if (userpass == null) {
                    userpass = new String[2];
                    userpass[0] = "none";
                    userpass[1] = "none";
                }
            } catch (Exception e) {
                userpass = new String[2];
                userpass[0] = "none";
                userpass[1] = "none";
            }

            /* Log.d ("debug",
             *  "trying: GET http://"+userpass[0]+":"+userpass[1]+"@"+target_host+":"+target_port+"/");
             */
            /* We're going to test the authentication credentials that we
             * have before using them so that we can act on the response.
             */

            httpclient = new DefaultHttpClient();

            httpget = new HttpGet("http://" + target_host + ":" + target_port + "/");

            httpclient.getCredentialsProvider().setCredentials(new AuthScope(target_host, target_port),
                    new UsernamePasswordCredentials(userpass[0], userpass[1]));

            try {
                response = httpclient.execute(httpget);
            } catch (IOException e) {
                Log.d(dbg, "Problem executing the http get");
                e.printStackTrace();
            }

            Log.d(dbg, "HTTP reponse:" + Integer.toString(response.getStatusLine().getStatusCode()));
            if (response.getStatusLine().getStatusCode() == 401) {
                /* We got Authentication failed (401) so ask user for u/p */

                /* login dialog box */
                final AlertDialog.Builder logindialog;
                final EditText user;
                final EditText pass;

                LinearLayout layout;
                LayoutParams params;

                TextView label_username;
                TextView label_password;

                logindialog = new AlertDialog.Builder(MexRemoteActivity.this);

                logindialog.setTitle("Mex Webremote login");

                user = new EditText(MexRemoteActivity.this);
                pass = new EditText(MexRemoteActivity.this);

                layout = new LinearLayout(MexRemoteActivity.this);

                pass.setTransformationMethod(new PasswordTransformationMethod());

                layout.setOrientation(LinearLayout.VERTICAL);

                params = new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);

                layout.setLayoutParams(params);
                user.setLayoutParams(params);
                pass.setLayoutParams(params);

                label_username = new TextView(MexRemoteActivity.this);
                label_password = new TextView(MexRemoteActivity.this);

                label_username.setText("Username:");
                label_password.setText("Password:");

                layout.addView(label_username);
                layout.addView(user);
                layout.addView(label_password);
                layout.addView(pass);
                logindialog.setView(layout);

                logindialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int whichButton) {
                        dialog.cancel();
                    }
                });

                logindialog.setPositiveButton("Login", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int whichButton) {
                        String uvalue = user.getText().toString().trim();
                        String pvalue = pass.getText().toString().trim();
                        view.setHttpAuthUsernamePassword(host, realm, uvalue, pvalue);

                        handler.proceed(uvalue, pvalue);
                    }
                });
                logindialog.show();
                /* End login dialog box */
            } else /* We didn't get a 401 */
            {
                handler.proceed(userpass[0], userpass[1]);
            }
        } /* End onReceivedHttpAuthRequest */
    }); /* End Override */

    /* Run mdns to check for service in a "runnable" (async) */
    handler.post(new Runnable() {
        public void run() {
            startMdns();
        }
    });

    dialog = ProgressDialog.show(MexRemoteActivity.this, "", "Searching...", true);

    /* Let's put something in the webview while we're waiting */
    String summary = "<html><head><style>body { background-color: #000000; color: #ffffff; }></style></head><body><p>Searching for the media explorer webservice</p><p>More infomation on <a href=\"http://media-explorer.github.com\" >Media Explorer's home page</a></p></body></html>";
    web_view.loadData(summary, "text/html", "utf-8");

}

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