Develop Reference

How to redirect to app from WebBrowser in Expo

I am currently working on a project on Android using the Expo client for react native. I am trying to open a webpage using WebBrowser, passing my app development URI to the website. The website basically just redirects to the given URI after 5 seconds. However it never seems to open anything. I've used almost the exact same code as here: https://github.com/expo/examples/tree/master/with-webbrowser-redirect. When I load this project into expo and run, it redirects fine. However, when I copy the code for the website and app into my own project, website opens and displays, but redirect does nothing. It just stays there. Here is the code for opening the browser.
_openBrowserAsync = async () => {
try {
this._addLinkingListener();
let result = await WebBrowser.openBrowserAsync(
'https://wexley-auth.firebaseapp.com/?linkingUri=exp://192.168.1.2:19000'
);
this._removeLinkingListener();
this.setState({ result });
} catch (error) {
alert(error);
console.log(error);
}
};
The linking listener never fires the callback which should dismiss the browser. My app URI should be exp://192.168.1.2:19000 as expo developer tools shows me this when I connect over LAN. Ive also tried using Linking.makeUrl() instead of sending URI in string manually. Neither method works for me. Relevant website code:
document.addEventListener("DOMContentLoaded", function(event) {
var links = document.querySelectorAll('a');
var baseUri='';
// Take the uri from the params
var qs = decodeURIComponent(document.location.search);
if (qs) {
baseUri = qs.split('?linkingUri=')[1];
}
var redirectInterval = setInterval(function() {
var countdown = document.querySelector('.countdown');
var t = parseInt(countdown.innerText, 10);
t -= 1;
if (t === 0) {
clearInterval(redirectInterval);
window.location.href = baseUri;
}
}, 1000);
});
Am I missing a step? Do I need to setup a scheme for opening my app or should this work out of the box? Am I using the wrong URI? I noticed that in the example code, the app.json has the following fields that my app.json doesn't have:
"scheme": "expo.examples.with-webbrowser-redirect",
"platforms": [
"android",
"ios"
]

How to login with Google OAuth2 using Angularjs inside Phonegap using ClientID and ClientSecret

I am trying to login from my Phonegap App using Angularjs (using the Ionic Framework) through Google OAuth2. Currently I am using the http://phonegap-tips.com/articles/google-api-oauth-with-phonegaps-inappbrowser.html for logging in. But it is creating really ugly looking code and quite a hard to understand code when I am using Angular-UI-Router for Ionic.
This issue seems to be spiralling around without any proper answers. I hope it should be solved now. The Google Angular Guys should help.
How to implement Google Auth in phonegap?
The closest topic is How to use Google Login API with Cordova/Phonegap, but this is not a solution for angularjs.
I had to transfer the javascript variable values using the following code:
var el = document.getElementById('test');
var scopeTest = angular.element(el).scope();
scopeTest.$apply(function(){
scopeTest.user = user;
scopeTest.logged_in = true;
scopeTest.name = user.name;
scopeTest.email = user.email;
});

I did the solution like this, where TestCtrl is the Controller where the Login Button resides. There is a mix of jquery based $.ajax calls, which I am going to change to the angualar way. The google_call function basically calls the google_api which is mentioned in the link mentioned above in phonegap-tips.
.controller('TestCtrl', function($scope,$ionicPopup) {
$scope.logged_in = false;
$scope.getMember = function(id) {
console.log(id);
};
$scope.test = function(){
$ionicPopup.alert({"title":"Clicked"});
}
$scope.call_google = function(){
googleapi.authorize({
client_id: 'CLIENT_ID',
client_secret: 'CLIENT_SECRET',
redirect_uri: 'http://localhost',
scope: 'https://www.googleapis.com/auth/plus.login https://www.googleapis.com/auth/userinfo.email'
}).done(function(data) {
accessToken=data.access_token;
// alert(accessToken);
// $loginStatus.html('Access Token: ' + data.access_token);
console.log(data.access_token);
//$ionicPopup.alert({"title":JSON.stringify(data)});
$scope.getDataProfile();
});
};
$scope.getDataProfile = function(){
var term=null;
// alert("getting user data="+accessToken);
$.ajax({
url:'https://www.googleapis.com/oauth2/v1/userinfo?alt=json&access_token='+accessToken,
type:'GET',
data:term,
dataType:'json',
error:function(jqXHR,text_status,strError){
},
success:function(data)
{
var item;
console.log(JSON.stringify(data));
// Save the userprofile data in your localStorage.
window.localStorage.gmailLogin="true";
window.localStorage.gmailID=data.id;
window.localStorage.gmailEmail=data.email;
window.localStorage.gmailFirstName=data.given_name;
window.localStorage.gmailLastName=data.family_name;
window.localStorage.gmailProfilePicture=data.picture;
window.localStorage.gmailGender=data.gender;
window.localStorage.gmailName=data.name;
$scope.email = data.email;
$scope.name = data.name;
}
});
//$scope.disconnectUser(); //This call can be done later.
};
$scope.disconnectUser = function() {
var revokeUrl = 'https://accounts.google.com/o/oauth2/revoke?token='+accessToken;
// Perform an asynchronous GET request.
$.ajax({
type: 'GET',
url: revokeUrl,
async: false,
contentType: "application/json",
dataType: 'jsonp',
success: function(nullResponse) {
// Do something now that user is disconnected
// The response is always undefined.
accessToken=null;
console.log(JSON.stringify(nullResponse));
console.log("-----signed out..!!----"+accessToken);
},
error: function(e) {
// Handle the error
// console.log(e);
// You could point users to manually disconnect if unsuccessful
// https://plus.google.com/apps
}
});
};
})
I am providing this answer for the newbies who faced similar problems like mine while trying to login using Google OAuth2. So asking for Upvotes shamelessly as I am new here too!

phonegap WFS proxy issue

I encountered a problem when I try to package my sencha-touch app using phonegap. Everything works fine except accessing WFS in phonegap. (And the app has no problem running in browser, WFS access is OK)
My phonegap version is 2.9; openlayer version is 2.13
Here I present my simple code. You can also check the example codes in the following site: http://openlayers.org/dev/examples/wfs-filter.html
var rootUrl = window.location.protocol + "//" + window.location.host + '/';
var map;
function init() {
map = new OpenLayers.Map({
div: "map",
layers: [
new OpenLayers.Layer.WMS(
"Natural Earth",
"http://demo.opengeo.org/geoserver/wms",
{ layers: "topp:naturalearth" }
),
new OpenLayers.Layer.Vector("WFS", {
strategies: [new OpenLayers.Strategy.BBOX()],
protocol: new OpenLayers.Protocol.WFS({
url: rootUrl + 'proxy.py?url=http://demo.opengeo.org/geoserver/wfs',
featureType: "tasmania_roads",
featureNS: "http://www.openplans.org/topp"
}),
styleMap: new OpenLayers.StyleMap({
strokeWidth: 3,
strokeColor: "#333333"
}),
})
],
center: new OpenLayers.LonLat(146.7, -41.8),
zoom: 6
});
}
In phonegap there's no problem accessing WMS, but when I try WFS, it never work.
Comparing to the link I showed you before, there's a road displayed in the map, and it is obtained through WFS. In my phonegap app, the road will not be displayed.
I'm wondering whether it is a WFS issue, or phonegap issue. Something is blocking my access to WFS in my phonegap app.
Please give me some suggestions and hints, guys! I will really appreciate it.
function getLayerList() {
$.ajax({ url: rootUrl + 'proxy.py?url=http://192.168.0.23/LBEService/Service1.svc/GetEventList',
//async: false,
data: JSON.stringify({}),
type: "POST",
dataType: "json",
contentType: "application/json; charset=utf-8",
success: function (result) {
console.log(result);
$("#demo").html(result[0].event_NAME);
},
error: function (xhr, ajaxOptions, thrownError) {
alert(xhr.status);
alert(thrownError);
}
}).done(function () {
});
}

Have you added the domain that is hosting the WFS to the white list?
http://docs.phonegap.com/en/1.9.0/guide_whitelist_index.md.html

On android PhoneGap window.location.protocol is 'file:' and window.location.hostname is "", so your app will probably be looking for file://proxy.py? which doesn't exist on your device.
To solve this issue I test the protocol, and set up OpenLayers.Proxy accordingly, thus:
if( location.protocol == 'file:' ) {
OpenLayers.ProxyHost = "";
} else {
OpenLayers.ProxyHost = "/cgi-bin/proxy.cgi?url=";
}
So in your case, if protocol is 'file:', I think you need to drop 'proxy.py?'
Tip: debug your android app using Chrome on your PC (chrome://inspect/#devices) and you'll see the request that android is making.

Android- Sharing local storage on multiple WebViews/Windows

I'm developping a mobile application, which should connect to a web server. The application is written with jQM and simply imported in an android web view. I tried to solve this problem using the jStorage plugin, but it seems that it's impossible to share the local storage between the different pages. So I tried to implement this, but it does not work and continues sending null.
Here are my code samples:
Javascript:
function getToken(authCode) {
var jsonUrl = mainUrl + "/auth/authorizeToken?grant_type=authorization_code&client_id=bc89fb879a64eb8e422b94d5c39&client_secret=b5c2974b78f7f3f7aee2bed182&redirect_uri=redirection&code="+authCode;
$.ajax({
url: jsonUrl,
type: "GET",
dataType: "jsonp",
success: function(data) {
localStorage.setItem( "access_token", data.access_token);
localStorage.setItem( "refresh_token", data.refresh_token);
localStorage.setItem( "logged", "true");
}
});
}
function valTokens() {
access_token = localStorage.getItem("access_token");
refresh_token = localStorage.getItem("refresh_token");
}
After that the values are set to null. The .java files are the same as in the sample from the link given.

Connecting Android Application With CakePhp website

Is it possible to communicate an android Application with cakePhp website and share data? If it is possible, I want to create an application that can login into the website; my doubt is:
How to pass user name and password from our application to cakephp websites login page? Can anybody show me an example program?
How cakephp controller handle this request and respond to this request? Please show me an example program?
(I am a beginner in android and cakephp.)

Quick answer -- YES!
We just finished pushing an Android app to the market place that does this exact thing. Here's how we did it:
1) Download and learn to use Cordova PhoneGap (2.2.0 is the latest version) within Eclipse. This makes the whole thing so much easier with just some HTML and a lot of Javascript.
2) In your JS, create methods that push the login information using AJAX parameters. Example:
document.addEventListener('deviceready', onDeviceReady, false);
function onDeviceReady() {
$("#login").click(function() {
$email = $("#UserEmail").val();
$pass = $("#UserPassword").val();
$.ajax({
url : yourURL + 'api/users/login',
async : false,
data : {
'email' : $email,
'password' : $pass
},
dataType : 'json',
type : 'post',
success : function(result) {
/**
* do your login redirects or
* use localStorage to store your data
* on the phone. Keep in mind the limitations of
* per domain localStorage of 5MB
*/
// you are officially "logged in"
window.location.href = "yourUrl.html";
return;
},
error : function(xhr, status, err) {
// do your stuff when the login fails
}
});
}
}
3) In Cake / PHP, your Users controller here will take the username and password data in the AJAX call and use that for its authentication.
<?php
class UsersController extends AppController {
public $name = 'Users';
public function beforeFilter() {
parent::beforeFilter();
$this->Auth->allow('api_login');
}
public function api_login() {
$this->autoRender = false;
if ($this->request->data && isset($this->request->data['email']) && isset($this->request->data['password'])) {
$arrUser = $this->User->find('all',array(
'conditions'=>array(
'email'=> $this->request->data['email'],
'password' => $this->Auth->password($this->request->data['password']),
)
)
);
if (count($arrUser) > 0) {
$this->Session->write('Auth.User',$arrUser[0]['User']);
// Do your login functions
$arrReturn['status'] = 'SUCCESS';
$arrReturn['data'] = array( 'loginSuccess' => 1,'user_id' => $arrUser[0]['User']['id'] );
} else {
$arrReturn['status'] = 'NOTLOGGEDIN';
$arrReturn['data'] = array( 'loginSuccess' => 0 );
}
} else {
$arrReturn['status'] = 'NOTLOGGEDIN';
$arrReturn['data'] = array( 'loginSuccess' => 0 );
}
echo json_encode($arrReturn);
}
}
?>
That's pretty much it. You are now authenticated to CakePHP.
You do not need to use "api_", you can use any function name you want, but this helped us keep a handle on what we allowed mobile users to do versus web users.
Now, these are just the building blocks. You basically have to create a whole version of your site on the phone using HTML and Javascript, so depending on your application it may be easier just to create a responsive design to your site and allow mobile browsing.
HTH!

Use Admad JWT Auth Plugin
If you use cakephp3 change your login function with this one :
public function token() {
$user = $this->Auth->identify();
if (!$user) {
throw new UnauthorizedException('Invalid username (email) or password');
}
$this->set([
'success' => true,
'data' => [
'token' => JWT::encode([
'sub' => $user['id'],
'exp' => time() + 604800
],
Security::salt())
],
'_serialize' => ['success', 'data']
]);
}
You can read this tutorial about REST Api and JWT Auth Implementation
http://www.bravo-kernel.com/2015/04/how-to-add-jwt-authentication-to-a-cakephp-3-rest-api/

if rebuild most of the view pages in cakephp into ajax will seem defeat the purposes of using cakephp as it is.