I am using OAUTH2 authentication to import GMAIL contacts . In my code
I am storing the config parameters in an array :
$clientid=<my Client id>;
$clientsecret=<my client secret>;
$redirecturi=<my redirect URL>;
$max_results = 25;
Below is how I create the POST array :
$fields=array(
'code'=> urlencode($auth_code),
'client_id'=> urlencode($clientid),
'client_secret'=> urlencode($clientsecret),
'redirect_uri'=> urlencode($redirecturi),
'grant_type'=> urlencode('authorization_code')
);
$post = '';
foreach($fields as $key=>$value) { $post .= $key.'='.$value.'&'; }
$post = rtrim($post,'&');
Now I'm making a **CURL** call to get the access token :
$curl = curl_init();
curl_setopt($curl,CURLOPT_URL,'https://accounts.google.com/o/
oauth2/token');
curl_setopt($curl,CURLOPT_POST,5);
curl_setopt($curl,CURLOPT_POSTFIELDS,$post);
curl_setopt($curl, CURLOPT_RETURNTRANSFER,TRUE);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER,0);
$result = curl_exec($curl);
curl_close($curl);
$response = json_decode($result);
$accesstoken = $response->access_token;
log_message('debug','POST'.$post);
log_message('debug','contents'.$result);
Here is where I am having trouble.
For the **first callback** , this request access token process return
a **Error 500** response which is displayed in my logs as follows :
<HTML>
<HEAD>
<TITLE>Error processing OAuth 2 request</TITLE>
</HEAD>
<BODY BGCOLOR="#FFFFFF" TEXT="#000000">
<H1>Error processing OAuth 2 request</H1>
<H2>Error 500</H2>
</BODY>
</HTML>
But for **all subsequent callbacks**, I am getting the proper access
token .
What's going wrong for the first time ?
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