How to execute a specific php script method giving parameters from url - php

Question

I have this php script:
<?php
class Curl_Class {
private $endpointUrl;
private $userName;
private $userKey;
public $token;
public $errorMsg = '';
private $defaults = array(
CURLOPT_HEADER => 0,
CURLOPT_HTTPHEADER => array('Expect:'),
// CURLOPT_FRESH_CONNECT => 1,
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_TIMEOUT => 10,
CURLOPT_SSL_VERIFYPEER => 0,
CURLOPT_SSL_VERIFYHOST => 0
);
//constructor saves the values
function __construct($url, $name, $key) {
$this->endpointUrl=$url;
$this->userName=$name;
$this->userKey=$key;
$this->token=$key;
}
private function getChallenge() {
$curl_handler = curl_init();
$params = array("operation" => "getchallenge", "username" => $this->userName);
$options = array(CURLOPT_URL => $this->endpointUrl."?".http_build_query($params));
curl_setopt_array($curl_handler, ($this->defaults + $options));
$result = curl_exec($curl_handler);
if (!$result) {
$this->errorMsg = curl_error($curl_handler);
return false;
}
$jsonResponse = json_decode($result, true);
if($jsonResponse["success"]==false) {
$this->errorMsg = "getChallenge failed: ".$jsonResponse["error"]["message"]."<br>";
return false;
}
$challengeToken = $jsonResponse["result"]["token"];
return $challengeToken;
}
function login() {
$curl_handler = curl_init();
$token = $this->getChallenge();
//create md5 string containing user access key from my preference menu
//and the challenge token obtained from get challenge result
$generatedKey = md5($token.$this->userKey);
$params = array("operation" => "login", "username" => $this->userName, "accessKey" => $generatedKey);
$options = array(CURLOPT_URL => $this->endpointUrl, CURLOPT_POST => 1, CURLOPT_POSTFIELDS => http_build_query($params));
curl_setopt_array($curl_handler, ($this->defaults + $options));
$result = curl_exec($curl_handler);
if (!$result) {
$this->errorMsg = curl_error($curl_handler);
return false;
}
$jsonResponse = json_decode($result, true);
if($jsonResponse["success"]==false) {
$this->errorMsg = "Login failed: ".$jsonResponse["error"]["message"]."<br>";
return false;
}
$sessionId = $jsonResponse["result"]["sessionName"];
//save session id
$this->token=$sessionId;
return true;
}
private function handleReturn($result, $name, $curl_handler) {
if (!$result) {
$this->errorMsg = curl_error($curl_handler);
return false;
}
$jsonResponse = json_decode($result, true);
if (!$jsonResponse) {
$this->errorMsg = "$name failed: ".$result."<br>";
return false;
}
if($jsonResponse["success"]==false) {
$this->errorMsg = "$name failed: ".$jsonResponse["error"]["message"]."<br>";
return false;
}
return $jsonResponse["result"];
}
public function operation($name, $params, $type = "GET", $filepath = '') {
$params = array_merge(array("operation" => $name, "sessionName" => $this->token), $params);
if (strtolower($type) == "post") {
$options = array(CURLOPT_URL => $this->endpointUrl, CURLOPT_POST => 1, CURLOPT_POSTFIELDS => http_build_query($params));
}
else {
$options = array(CURLOPT_URL => $this->endpointUrl."?".http_build_query($params));
}
if ($filepath != '' && strtolower($type) == "post") {
$element = $params['element'];
if (!empty($element)) {
$element = json_decode($element, true);
}
if (isset($element['filename'])) {
$filename = $element['filename'];
}
else {
$filename = pathinfo($filepath, PATHINFO_BASENAME);
}
$size = filesize($filepath);
$add_options = array(CURLOPT_HTTPHEADER => array("Content-Type: multipart/form-data"), CURLOPT_INFILESIZE => $size);
if (function_exists("mime_content_type")) {
$type = mime_content_type($filepath);
}
elseif (isset($element['filetype'])) {
$type = $element['filetype'];
}
else {
$type = '';
}
if (!function_exists('curl_file_create')) {
$add_params = array("filename" => "#$filepath;type=$type;filename=$filename");
}
else {
$cfile = curl_file_create($filepath, $type, $filename);
$add_params = array('filename' => $cfile);
}
$options += $add_options;
$options[CURLOPT_POSTFIELDS] = $params + $add_params;
}
$curl_handler = curl_init();
curl_setopt_array($curl_handler, ($this->defaults + $options));
$result = curl_exec($curl_handler);
return $this->handleReturn($result, $name, $curl_handler);
}
}
?>
I'm learning programming so i'm in no way good at this.. I need to execute the function login() of this class from a url, giving in input the parameters (private $endpointUrl,private $userName,private $userKey) and receiving in output the $sessionId.
So, for example, i'll write in the url
https://webserver.com/Login.php? endpointUrl=1&username=2&userKey=3
and receiving in output the $sessionId.
Is it possible? How? Thanks!

Answer 1

Here's some example;
if(isset($_GET["endpointUrl"], $_GET["username"], $_GET["userKey"])){
$x = new Curl_Class($_GET["endpointUrl"], $_GET["username"], $_GET["userKey"]);
if($x->login()){
echo $x->token;
}
}
Better if serialize the GET input for security purposes. But in this example, just a simple call of login.
Since the login() method returning boolean, so from there we can know if the token created or not.