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<?php
namespace FluentMail\App\Services\Mailer\Providers\Outlook;
use FluentMail\App\Models\Settings;
use FluentMail\Includes\Support\Arr;
use FluentMail\App\Services\Mailer\BaseHandler;
class Handler extends BaseHandler
{
public function send()
{
$this->phpMailer->Encoding = 'base64';
if ($this->preSend() && $this->phpMailer->preSend()) {
return $this->postSend();
}
return $this->handleResponse(new \WP_Error(422, __('Something went wrong!', 'fluent-smtp'), []));
}
protected function postSend()
{
try {
$returnResponse = $this->sendViaApi();
} catch (\Exception $e) {
$returnResponse = new \WP_Error(422, $e->getMessage(), []);
}
$this->response = $returnResponse;
return $this->handleResponse($this->response);
}
public function setSettings($settings)
{
if (Arr::get($settings, 'key_store') == 'wp_config') {
$settings['client_id'] = defined('FLUENTMAIL_OUTLOOK_CLIENT_ID') ? FLUENTMAIL_OUTLOOK_CLIENT_ID : '';
$settings['client_secret'] = defined('FLUENTMAIL_OUTLOOK_CLIENT_SECRET') ? FLUENTMAIL_OUTLOOK_CLIENT_SECRET : '';
}
$this->settings = $settings;
return $this;
}
private function sendViaApi()
{
$mime = chunk_split(base64_encode($this->phpMailer->getSentMIMEMessage()), 76, "\n");
$data = $this->getSetting();
$accessToken = $this->getAccessToken($data);
$api = (new API($data['client_id'], $data['client_secret']));
$result = $api->sendMime($mime, $accessToken);
if(is_wp_error($result)) {
$errorMessage = $result->get_error_message();
return new \WP_Error(422, $errorMessage, []);
} else {
return array(
'RequestId' => $result['request-id'],
);
}
}
public function validateProviderInformation($connection)
{
$errors = [];
$keyStoreType = $connection['key_store'];
$clientId = Arr::get($connection, 'client_id');
$clientSecret = Arr::get($connection, 'client_secret');
if ($keyStoreType == 'db') {
if (!$clientId) {
$errors['client_id']['required'] = __('Application Client ID is required.', 'fluent-smtp');
}
if (!$clientSecret) {
$errors['client_secret']['required'] = __('Application Client Secret key is required.', 'fluent-smtp');
}
} else if ($keyStoreType == 'wp_config') {
if (!defined('FLUENTMAIL_OUTLOOK_CLIENT_ID') || !FLUENTMAIL_OUTLOOK_CLIENT_ID) {
$errors['client_id']['required'] = __('Please define FLUENTMAIL_OUTLOOK_CLIENT_ID in wp-config.php file.', 'fluent-smtp');
} else {
$clientId = FLUENTMAIL_OUTLOOK_CLIENT_ID;
}
if (!defined('FLUENTMAIL_OUTLOOK_CLIENT_SECRET') || !FLUENTMAIL_OUTLOOK_CLIENT_SECRET) {
$errors['client_secret']['required'] = __('Please define FLUENTMAIL_OUTLOOK_CLIENT_SECRET in wp-config.php file.', 'fluent-smtp');
} else {
$clientSecret = FLUENTMAIL_OUTLOOK_CLIENT_SECRET;
}
}
if ($errors) {
$this->throwValidationException($errors);
}
$accessToken = Arr::get($connection, 'access_token');
$authToken = Arr::get($connection, 'auth_token');
if (!$accessToken && $authToken) {
$tokens = (new API($clientId, $clientSecret))->generateToken($authToken);
if (is_wp_error($tokens)) {
$errors['auth_token']['required'] = $tokens->get_error_message();
} else {
add_filter('fluentmail_saving_connection_data', function ($con, $provider) use ($connection, $tokens) {
if ($provider != 'outlook') {
return $con;
}
if (Arr::get($con, 'connection.sender_email') != $connection['sender_email']) {
return $con;
}
$con['connection']['refresh_token'] = $tokens['refresh_token'];
$con['connection']['access_token'] = $tokens['access_token'];
$con['connection']['auth_token'] = '';
$con['connection']['expire_stamp'] = time() + $tokens['expires_in'];
return $con;
}, 10, 2);
}
} else if (!$authToken && !$accessToken) {
$errors['auth_token']['required'] = __('Please Provide Auth Token.', 'fluent-smtp');
}
if ($errors) {
$this->throwValidationException($errors);
}
}
private function saveNewTokens($existingData, $tokens)
{
if (empty($tokens['access_token']) || empty($tokens['refresh_token'])) {
return false;
}
$senderEmail = $existingData['sender_email'];
$existingData['access_token'] = $tokens['access_token'];
$existingData['refresh_token'] = $tokens['refresh_token'];
$existingData['expire_stamp'] = $tokens['expires_in'] + time();
(new Settings())->updateConnection($senderEmail, $existingData);
return fluentMailGetProvider($senderEmail, true); // we are clearing the static cache here
}
private function getAccessToken($config)
{
$accessToken = $config['access_token'];
// check if expired or will be expired in 300 seconds
if ( ($config['expire_stamp'] - 300) < time()) {
$fluentAPi = (new API($config['client_id'], $config['client_secret']));
$tokens = $fluentAPi->sendTokenRequest('refresh_token', [
'refresh_token' => $config['refresh_token']
]);
if(is_wp_error($tokens)) {
return false;
}
$this->saveNewTokens($config, $tokens);
$accessToken = $tokens['access_token'];
}
return $accessToken;
}
public function getConnectionInfo($connection)
{
if (Arr::get($connection, 'key_store') == 'wp_config') {
$connection['client_id'] = defined('FLUENTMAIL_OUTLOOK_CLIENT_ID') ? FLUENTMAIL_OUTLOOK_CLIENT_ID : '';
$connection['client_secret'] = defined('FLUENTMAIL_OUTLOOK_CLIENT_SECRET') ? FLUENTMAIL_OUTLOOK_CLIENT_SECRET : '';
}
$this->getAccessToken($connection);
$info = fluentMailgetConnection($connection['sender_email']);
$connection = $info->getSetting();
$extraRow = [
'title' => __('Token Validity', 'fluent-smtp'),
'content' => 'Valid (' . intval((($connection['expire_stamp'] - time()) / 60)) . 'm)'
];
if (($connection['expire_stamp']) < time()) {
$extraRow['content'] = 'Invalid. Please re-authenticate';
}
$connection['extra_rows'] = [$extraRow];
return [
'info' => (string)fluentMail('view')->make('admin.general_connection_info', [
'connection' => $connection
])
];
}
}
|