<?php 
/* 
 * google_contacts_api_php_example.php 
 * 
 * @(#) $Id: google_contacts_api_php_example.php,v 1.1 2017/03/15 12:51:49 mlemos Exp $ 
 * 
 */ 
 
// Include the necessary class files directly or 
// vendor/autoload.php if you used composer to install the package. 
    require('http.php'); 
    require('oauth_client.php'); 
 
    $client = new oauth_client_class; 
    $client->server = 'Google'; 
    $client->debug = false; 
    $client->debug_http = true; 
 
    $client->redirect_uri = 'https://'.$_SERVER['HTTP_HOST']. 
        dirname(strtok($_SERVER['REQUEST_URI'],'?')).'/google_contacts_api_php_example.php'; 
 
    $client->client_id = ''; $application_line = __LINE__; 
    $client->client_secret = ''; 
 
    if(strlen($client->client_id) == 0 
    || strlen($client->client_secret) == 0) 
        die('Please go to Google APIs console page '. 
            'http://code.google.com/apis/console in the API access tab, '. 
            'create a new client ID, and in the line '.$application_line. 
            ' set the client_id to Client ID and client_secret with Client Secret. '. 
            'The callback URL must be '.$client->redirect_uri.' but make sure '. 
            'the domain is valid and can be resolved by a public DNS.'); 
 
    /* API permissions 
     */ 
    $client->scope = 'https://www.googleapis.com/auth/contacts.readonly'; 
    if(($success = $client->Initialize())) 
    { 
        if(($success = $client->Process())) 
        { 
            if(strlen($client->authorization_error)) 
            { 
                $client->error = $client->authorization_error; 
                $success = false; 
            } 
            elseif(strlen($client->access_token)) 
            { 
                $success = $client->CallAPI( 
                    'https://people.googleapis.com/v1/people/me/connections?fields=connections(emailAddresses%2Cnames)', 
                    'GET', array(), array('FailOnAccessError'=>true), $contacts); 
            } 
        } 
        $success = $client->Finalize($success); 
    } 
    if($client->exit) 
        exit; 
    if($success) 
    { 
?> 
<!DOCTYPE html> 
<html> 
<head> 
<title>Google Contacts API PHP Example</title> 
</head> 
<body> 
<h1>Google Contacts API PHP Example</h1> 
<?php 
        echo '<pre>'; 
        foreach($contacts->connections as $contact) 
        { 
            echo htmlspecialchars($contact->names[0]->displayName), "\n"; 
        } 
        echo '</pre>'; 
?> 
</body> 
</html> 
<?php 
    } 
    else 
    { 
?> 
<!DOCTYPE html> 
<html> 
<head> 
<title>OAuth client error</title> 
</head> 
<body> 
<h1>OAuth client error</h1> 
<pre>Error: <?php echo HtmlSpecialChars($client->error); ?></pre> 
</body> 
</html> 
<?php 
    } 
 
?>
 
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