Google+ sign in, PHP one-time-code/server-side flow without "Silex/twig" -

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example code google+ sign-in server-side apps

  // create state token prevent request forgery.   // store in session later validation.   $state = md5(rand());   $app['session']->set('state', $state);   // set client id, token state, , application name in html while   // serving it.   return $app['twig']->render('index.html', array(       'client_id' => client_id,       'state' => $state,       'application_name' => application_name   ));

enter image description here

question: how server-side work without silex/twig ?

i use client library(php)
please test codes works fine
index.php

<?php session_start(); $data['state'] = md5(uniqid(rand(), true)); $_session['state'] = $data['state']; ?> <html itemscope itemtype="http://schema.org/article"> <head>   <!-- begin pre-requisites -->   <script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js">   </script>   <meta name="google-signin-scope" content="https://www.googleapis.com/auth/plus.login https://www.googleapis.com/auth/plus.moments.write https://www.googleapis.com/auth/plus.me https://www.googleapis.com/auth/plus.profile.agerange.read https://www.googleapis.com/auth/plus.profile.language.read https://www.googleapis.com/auth/plus.circles.members.read https://www.googleapis.com/auth/drive.file https://www.googleapis.com/auth/userinfo.email" />    <script type="text/javascript">     (function () {       var po = document.createelement('script');       po.type = 'text/javascript';       po.async = true;       po.src = 'https://plus.google.com/js/client:plusone.js';       var s = document.getelementsbytagname('script')[0];       s.parentnode.insertbefore(po, s);     })();   </script>   <!-- end pre-requisites --> </head> <body> <!-- add want sign-in button render --> <div id="signinbutton">   <span class="g-signin"     data-scope="https://www.googleapis.com/auth/plus.login"     data-clientid="your clientid"     data-redirecturi="postmessage"     data-accesstype="offline"     data-cookiepolicy="single_host_origin"     data-callback="signincallback">   </span> </div> <button id="signoutbutton" style="display:none" onclick="signout()">signout</button> <div id="result"></div>  <script type="text/javascript"> function signincallback(authresult) {   if (authresult['code']) {     // hide sign-in button user authorized, example:     $('#signinbutton').attr('style', 'display: none');     $('#signoutbutton').attr('style', 'display: block');     var state = '<?php echo $_session['state']; ?>';     var param = new array();     var param = [authresult['code'],state];     // send code server     $.ajax({       type: 'post',       url: 'plus.php?storetoken&state',       contenttype: 'application/octet-stream; charset=utf-8',       success: function(result) {         // handle or verify server response if necessary.        console.log(result);         alert('connected');       },       processdata: false,       data: param     });   } else if (authresult['error']) {     alert('could not automatially log in user');      console.log('there error: ' + authresult['error']);   } }  function signout(){         gapi.auth.signout();         $('#signoutbutton').attr('style', 'display: none');         $('#signinbutton').attr('style', 'display: block');         console.log('sign out'); } </script> </body> </html>

plus.php

<?php session_start(); require_once 'src/google_client.php'; require_once 'src/contrib/google_plusservice.php';   $client = new google_client();   $client_id = 'client id';   $client->setclientid($client_id);   $client->setclientsecret('client secret');   $client->setredirecturi('postmessage');   $code = explode(",",file_get_contents('php://input'));    if (isset($code[1]) && $code[1] === $_session['state']) { $plus = new google_plusservice($client);   $client->authenticate($code[0]);   $token = json_decode($client->getaccesstoken());    // verify token   $requrl = 'https://www.googleapis.com/oauth2/v1/tokeninfo?access_token=' .           $token->access_token;    $req = new google_httprequest($requrl);    $tokeninfo = json_decode(       $client::getio()->authenticatedrequest($req)->getresponsebody());    $userid = $tokeninfo->user_id;   $useremail = $tokeninfo->email;    // if there error in token info, abort.   if (isset($tokeninfo->error)) {     print $tokeninfo->error;   }    // make sure token got our app.    if ($tokeninfo->audience != $client_id) {     print "token's client id not match app's.";   }  print 'token result: ' . print_r($token, true); print '<<<<<<<<<<< tokeninfo >>>>>>> ' . print_r($tokeninfo, true);  } else {           echo "invalid state parameter"; }

don't forget add client id , client secret.
sign out not working in localhost.


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