PHP Google oauth2

Question

I am using Xampp and I wanted to integrate sending Gmail over PHP. I see that everybody recommend PHP Mailer so I download Composer and install phpmailer composer require phpmailer/phpmailer . After that i install google oauth2: composer require league/oauth2-google .

I look at this link to use : Authorization Code Flow.

Google API is all set up (i got APP-id and Secret)

when i run get_oauth_token.php i get error: Uncaught Error: Class 'League\\OAuth2\\Client\\Provider\\Google' not found in C:\\xampp\\htdocs\\telesales\\gentelella-master\\production\\PHPMailer\\get_oauth_token.php

my composer.json is this:

{
    "require": {
        "phpmailer/phpmailer": "^6.0",
        "league/oauth2-client": "^2.3",
        "stevenmaguire/oauth2-microsoft": "^2.2"
    }
}

Sorry, but I am new at this and cannot find why .php page wont find Class.

Here is get_oauth_token.php

<?php
$provider = new League\OAuth2\Client\Provider\Google([
    'clientId'     => '{google-app-id}',
    'clientSecret' => '{google-app-secret}',
    'redirectUri'  => 'https://example.com/callback-url',
    'hostedDomain' => 'example.com', // optional; used to restrict access to users on your G Suite/Google Apps for Business accounts
]);

if (!empty($_GET['error'])) {

    // Got an error, probably user denied access
    exit('Got error: ' . htmlspecialchars($_GET['error'], ENT_QUOTES, 'UTF-8'));

} elseif (empty($_GET['code'])) {

    // If we don't have an authorization code then get one
    $authUrl = $provider->getAuthorizationUrl();
    $_SESSION['oauth2state'] = $provider->getState();
    header('Location: ' . $authUrl);
    exit;

} elseif (empty($_GET['state']) || ($_GET['state'] !== $_SESSION['oauth2state'])) {

    // State is invalid, possible CSRF attack in progress
    unset($_SESSION['oauth2state']);
    exit('Invalid state');

} else {

    // Try to get an access token (using the authorization code grant)
    $token = $provider->getAccessToken('authorization_code', [
        'code' => $_GET['code']
    ]);

    // Optional: Now you have a token you can look up a users profile data
    try {

        // We got an access token, let's now get the owner details
        $ownerDetails = $provider->getResourceOwner($token);

        // Use these details to create a new profile
        printf('Hello %s!', $ownerDetails->getFirstName());

    } catch (Exception $e) {

        // Failed to get user details
        exit('Something went wrong: ' . $e->getMessage());

    }

    // Use this to interact with an API on the users behalf
    echo $token->getToken();

    // Use this to get a new access token if the old one expires
    echo $token->getRefreshToken();

    // Number of seconds until the access token will expire, and need refreshing
    echo $token->getExpires();
}
?>

Answer 1

I have just making the same but without composer. First it's not working with some errors. While I am searching the solution for troubleshooting, and try to edit some lines, finally it's working now. with this result :

            2018-05-27 02:41:44 SERVER -> CLIENT: 220 smtp.gmail.com ESMTP q126-v6sm37491953pga.79 - gsmtp
2018-05-27 02:41:44 CLIENT -> SERVER: EHLO mybasic.local
2018-05-27 02:41:44 SERVER -> CLIENT: 250-smtp.gmail.com at your service, [103.213.130.29]250-SIZE 35882577250-8BITMIME250-STARTTLS250-ENHANCEDSTATUSCODES250-PIPELINING250-CHUNKING250 SMTPUTF8
2018-05-27 02:41:44 CLIENT -> SERVER: STARTTLS
2018-05-27 02:41:45 SERVER -> CLIENT: 220 2.0.0 Ready to start TLS
2018-05-27 02:41:45 CLIENT -> SERVER: EHLO myweb.local
2018-05-27 02:41:45 SERVER -> CLIENT: 250-smtp.gmail.com at your service, [103.213.130.29]250-SIZE 35882577250-8BITMIME250-AUTH LOGIN PLAIN XOAUTH2 PLAIN-CLIENTTOKEN OAUTHBEARER XOAUTH250-ENHANCEDSTATUSCODES250-PIPELINING250-CHUNKING250 SMTPUTF8
2018-05-27 02:41:45 CLIENT -> SERVER: AUTH LOGIN
2018-05-27 02:41:45 SERVER -> CLIENT: 334 VXNlcm5hbWU6
2018-05-27 02:41:45 CLIENT -> SERVER: <credentials hidden>
2018-05-27 02:41:45 SERVER -> CLIENT: 334 UGFzc3dvcmQ6
2018-05-27 02:41:45 CLIENT -> SERVER: <credentials hidden>
2018-05-27 02:41:46 SERVER -> CLIENT: 235 2.7.0 Accepted
2018-05-27 02:41:46 CLIENT -> SERVER: MAIL FROM:<your_email@gmail.com>
2018-05-27 02:41:46 SERVER -> CLIENT: 250 2.1.0 OK q126-v6sm37491953pga.79 - gsmtp
2018-05-27 02:41:46 CLIENT -> SERVER: RCPT TO:<your_email_or_other@gmail.com>
2018-05-27 02:41:46 SERVER -> CLIENT: 250 2.1.5 OK q126-v6sm37491953pga.79 - gsmtp
2018-05-27 02:41:46 CLIENT -> SERVER: DATA
2018-05-27 02:41:46 SERVER -> CLIENT: 354 Go ahead q126-v6sm37491953pga.79 - gsmtp
2018-05-27 02:41:46 CLIENT -> SERVER: Date: Sun, 27 May 2018 04:41:44 +0200
2018-05-27 02:41:46 CLIENT -> SERVER: To: Test System <your_email@gmail.com>
2018-05-27 02:41:46 CLIENT -> SERVER: From: Test System <your_email@gmail.com>
2018-05-27 02:41:46 CLIENT -> SERVER: Subject: Here is the subject
2018-05-27 02:41:46 CLIENT -> SERVER: Message-ID: <ECAniOwmuQcv1zYojWJ3VxZx8xCqVgayTymBYoKlKk@mybasic.local>
2018-05-27 02:41:46 CLIENT -> SERVER: X-Mailer: PHPMailer 6.0.5 (https://github.com/PHPMailer/PHPMailer)
2018-05-27 02:41:46 CLIENT -> SERVER: MIME-Version: 1.0
2018-05-27 02:41:46 CLIENT -> SERVER: Content-Type: multipart/alternative;
2018-05-27 02:41:46 CLIENT -> SERVER: boundary="b1_ECAniOwmuQcv1zYojWJ3VxZx8xCqVgayTymBYoKlKk"
2018-05-27 02:41:46 CLIENT -> SERVER: Content-Transfer-Encoding: 8bit
2018-05-27 02:41:46 CLIENT -> SERVER:
2018-05-27 02:41:46 CLIENT -> SERVER: This is a multi-part message in MIME format.
2018-05-27 02:41:46 CLIENT -> SERVER: --b1_ECAniOwmuQcv1zYojWJ3VxZx8xCqVgayTymBYoKlKk
2018-05-27 02:41:46 CLIENT -> SERVER: Content-Type: text/plain; charset=us-ascii
2018-05-27 02:41:46 CLIENT -> SERVER:
2018-05-27 02:41:46 CLIENT -> SERVER: This is the body in plain text for non-HTML mail clients
2018-05-27 02:41:46 CLIENT -> SERVER:
2018-05-27 02:41:46 CLIENT -> SERVER: --b1_ECAniOwmuQcv1zYojWJ3VxZx8xCqVgayTymBYoKlKk
2018-05-27 02:41:46 CLIENT -> SERVER: Content-Type: text/html; charset=us-ascii
2018-05-27 02:41:46 CLIENT -> SERVER:
2018-05-27 02:41:46 CLIENT -> SERVER: This is the HTML message body <b>in bold!</b>
2018-05-27 02:41:46 CLIENT -> SERVER:
2018-05-27 02:41:46 CLIENT -> SERVER:
2018-05-27 02:41:46 CLIENT -> SERVER: --b1_ECAniOwmuQcv1zYojWJ3VxZx8xCqVgayTymBYoKlKk--
2018-05-27 02:41:46 CLIENT -> SERVER:
2018-05-27 02:41:46 CLIENT -> SERVER: .
2018-05-27 02:41:48 SERVER -> CLIENT: 250 2.0.0 OK 1527388939 q126-v6sm37491953pga.79 - gsmtp
2018-05-27 02:41:48 CLIENT -> SERVER: QUIT
2018-05-27 02:41:48 SERVER -> CLIENT: 221 2.0.0 closing connection q126-v6sm37491953pga.79 - gsmtp
Message has been sent 

My code :

use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;

require 'PHPMailer/src/Exception.php'; // make sure the folder is right
require 'PHPMailer/src/PHPMailer.php';
require 'PHPMailer/src/SMTP.php';

//Load Composer's autoloader
//require 'vendor/autoload.php'; // if using composer

$mail = new PHPMailer(true);                              // Passing `true` enables exceptions
try {
    //Server settings
    $mail->SMTPDebug = 2;                                 // Enable verbose debug output
    $mail->isSMTP();                                      // Set mailer to use SMTP
    $mail->Host = 'smtp.gmail.com';                     // Specify main and backup SMTP servers
    $mail->SMTPAuth = true;                               // Enable SMTP authentication
     $mail->Username = 'your_email@gmail.com';                 // SMTP username
     $mail->Password = 'your_email_password';  
    $mail->SMTPSecure = 'tsl';                            // Enable TLS encryption, `ssl` also accepted
    $mail->Port = 587;                                    // TCP port to connect to

     $mail->setFrom('your_email@gmail.com', 'Test System');
     $mail->addAddress('your_email_or_other@gmail.com', 'Test System');  
    //Content
    $mail->isHTML(true);                                  // Set email format to HTML
    $mail->Subject = 'Here is the subject';
    $mail->Body    = 'This is the HTML message body <b>in bold!</b>';
    $mail->AltBody = 'This is the body in plain text for non-HTML mail clients';

    $mail->send();
    echo 'Message has been sent';
} catch (Exception $e) {
    echo 'Message could not be sent. Mailer Error: ', $mail->ErrorInfo;
}

I also disabled/comment all lines related to email on php.ini in the folder xampp/php and reload the xampp.

Get the latest code from : https://github.com/PHPMailer/PHPMailer

Hope it will help.