whmcsSeaFile/seafileAddressAvailable.php

<?php
/**
 * Helper script to check the availibility of a Seafile Account useable with ajax requests
 * 
 * @see https://www.seafile.com
 * @copyright Copyright (c) Thurdata GmbH 2021
 * @license GPL
 * 
 */
$pos = strpos($_SERVER['HTTP_REFERER'],getenv('HTTP_HOST'));
if($pos===false) {
    die('Restricted access');
}
$productID = $_GET['pid'];
$accountName = $_GET['username'];
if(!filter_var($accountName, FILTER_VALIDATE_EMAIL)) {
    echo "invalid";
    exit;
}

error_log("Seafile Address Available: ". $productID . "/" . $accountName);
/**
 * Requires the whmcs init
 * Requires this PHP api to make soap calls and parse responses
 */
require_once(__DIR__ . '/../../../init.php');
require_once(__DIR__ . '/api/Sf/Admin.php');
use WHMCS\Database\Capsule;
$whmcs = App::self();
$accessData = array('seafileURL' => '', 'adminUser' => '', 'adminPass' => '');
$serverGroupIDObj = Capsule::table('tblproducts')
	->select('servergroup')
	->where('id', '=', $productID)
	->get();
$serverGroupID = $serverGroupIDObj[0]->servergroup;
$serverIDObj = Capsule::table('tblservergroupsrel')
    ->select('serverid')
    ->where('groupid', '=', $serverGroupID)
    ->get();
$serverID = $serverIDObj[0]->serverid;
$server = Capsule::table('tblservers')
	->select('hostname', 'secure', 'port', 'username', 'password')
	->where('id', '=', $serverID)
	->where('active', '=', 1)
	->get();

$accessData['seafileServer'] = $server[0]->hostname;
$accessData['prefix'] = $server[0]->secure ? 'https://' : 'http://';
$accessData['port'] = $server[0]->port;
$accessData['adminUser'] = $server[0]->username;
$adminPassCrypt = $server[0]->password;
$adminPassDecrypt = localAPI('DecryptPassword', array('password2' => $adminPassCrypt));
if ($adminPassDecrypt['result'] == 'success') {
        $accessData['adminPass'] = $adminPassDecrypt['password'];
}

if (empty($accessData['port']) || $accessData['port'] == "") {
    $seafileURL = $accessData['prefix'] . $accessData['seafileServer'] . ":443";
} else {
    $seafileURL = $accessData['prefix'] . $accessData['seafileServer'] . ':' . $accessData['port'];
}
$seafileAPI = new Sf_Admin($seafileURL,$accessData['adminUser'],$accessData['adminPass']);
$response = $seafileAPI->login();

if (isset($response['error_msg'])) {
    logModuleCall(
        'seafile',
        __FUNCTION__,
        $params,
        'Error: could not login to ' . $seafileURL,
        $response
    );
    error_log("  --> ERROR " . print_r($response,true));
    echo "error";
    exit();
} else {
    $existingAccount = $seafileAPI->getAccount($accountName);
    if (isset($existingAccount['error_msg'])) {
        echo 'yes';
    } else {
        echo 'no';
    }
}