com.microsoft.graph.connect.ConnectActivity.java Source code

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Here is the source code for com.microsoft.graph.connect.ConnectActivity.java

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/*
 * Copyright (c) Microsoft. All rights reserved. Licensed under the MIT license.
 * See LICENSE in the project root for license information.
 */
package com.microsoft.graph.connect;

import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;

import net.openid.appauth.AuthorizationException;
import net.openid.appauth.AuthorizationService;
import net.openid.appauth.TokenResponse;

import org.json.JSONException;
import org.json.JSONObject;

import java.net.URI;
import java.util.UUID;

/**
 * Starting Activity of the app. Handles the connection to Office 365.
 * When it first starts it only displays a button to Connect to Office 365.
 * If there are no cached tokens, the user is required to sign in to Office 365.
 * If there are cached tokens, the app tries to reuse them.
 * The activity redirects the user to the SendMailActivity upon successful connection.
 */
public class ConnectActivity extends AppCompatActivity implements AuthorizationService.TokenResponseCallback {

    private static final String TAG = "ConnectActivity";

    private Button mConnectButton;
    private TextView mTitleTextView;
    private TextView mDescriptionTextView;
    private ProgressBar mConnectProgressBar;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        Bundle extras = getIntent().getExtras();
        if (extras != null) {
            AuthenticationManager.getInstance().processAuthorizationCode(getIntent(), this);
        }

        setContentView(R.layout.activity_connect);
        setTitle(R.string.app_name);

        // set up our views
        mConnectButton = (Button) findViewById(R.id.connectButton);
        mConnectProgressBar = (ProgressBar) findViewById(R.id.connectProgressBar);
        mTitleTextView = (TextView) findViewById(R.id.titleTextView);
        mDescriptionTextView = (TextView) findViewById(R.id.descriptionTextView);

        // add click listener
        mConnectButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                showConnectingInProgressUI();

                //check that client id and redirect have been configured
                if (!hasAzureConfiguration()) {
                    Toast.makeText(ConnectActivity.this,
                            getString(R.string.warning_client_id_redirect_uri_incorrect), Toast.LENGTH_LONG).show();
                    resetUIForConnect();
                    return;
                }

                connect();
            }
        });

        // Initialize AuthenticationManager
        AuthenticationManager.getInstance().setContextActivity(this);
    }

    private void connect() {
        AuthenticationManager.getInstance().startAuthorizationFlow();
    }

    @Override
    public void onTokenRequestCompleted(@Nullable TokenResponse tokenResponse,
            @Nullable AuthorizationException authorizationException) {
        if (tokenResponse != null) {
            // get the UserInfo from the auth response
            JSONObject claims = AuthenticationManager.getInstance().getClaims(tokenResponse.idToken);

            String name = "";
            String preferredUsername = "";
            try {
                name = claims.getString("name");
                preferredUsername = claims.getString("preferred_username");
            } catch (JSONException je) {
                Log.e(TAG, je.getMessage());
            }

            // start the SendMailActivity
            Intent sendMailActivity = new Intent(ConnectActivity.this, SendMailActivity.class);

            // take the user's info along
            sendMailActivity.putExtra(SendMailActivity.ARG_GIVEN_NAME, name);
            sendMailActivity.putExtra(SendMailActivity.ARG_DISPLAY_ID, preferredUsername);

            // actually start the Activity
            startActivity(sendMailActivity);

            resetUIForConnect();
        } else if (authorizationException != null) {
            showConnectErrorUI();
        }
    }

    private static boolean hasAzureConfiguration() {
        try {
            UUID.fromString(Constants.CLIENT_ID);
            URI.create(Constants.REDIRECT_URI);
            return true;
        } catch (IllegalArgumentException e) {
            return false;
        }
    }

    private void resetUIForConnect() {
        mConnectButton.setVisibility(View.VISIBLE);
        mTitleTextView.setVisibility(View.GONE);
        mDescriptionTextView.setVisibility(View.GONE);
        mConnectProgressBar.setVisibility(View.GONE);
    }

    private void showConnectingInProgressUI() {
        mConnectButton.setVisibility(View.GONE);
        mTitleTextView.setVisibility(View.GONE);
        mDescriptionTextView.setVisibility(View.GONE);
        mConnectProgressBar.setVisibility(View.VISIBLE);
    }

    private void showConnectErrorUI() {
        mConnectButton.setVisibility(View.VISIBLE);
        mConnectProgressBar.setVisibility(View.GONE);
        mTitleTextView.setText(R.string.title_text_error);
        mTitleTextView.setVisibility(View.VISIBLE);
        mDescriptionTextView.setText(R.string.connect_text_error);
        mDescriptionTextView.setVisibility(View.VISIBLE);
        Toast.makeText(ConnectActivity.this, R.string.connect_toast_text_error, Toast.LENGTH_LONG).show();
    }
}