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<?php |
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namespace Puerari\Moodle; |
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/** |
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* @class MoodleRestApi |
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* @package Puerari\Moodle |
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* @author Leandro Puerari <[email protected]> |
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*/ |
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class MoodleRestApi |
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{ |
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/** Constant that defines return format to JSON */ |
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/*public*/ |
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const RETURN_JSON = 'json'; |
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/** Constant that defines return format to XML */ |
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/*public*/ |
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const RETURN_XML = 'xml'; |
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/** Constant that defines return format to ARRAY */ |
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/*public*/ |
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const RETURN_ARRAY = 'array'; |
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/** Constant that defines return format to ARRAY */ |
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/*public*/ |
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const METHOD_GET = 'get'; |
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/** Constant that defines return format to ARRAY */ |
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/*public*/ |
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const METHOD_POST = 'post'; |
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/** @var string Access Token */ |
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private $access_token; |
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/** @var string URL for the Moodle server */ |
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private $server_url; |
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/** @var string Return format for the response (json, array or xml) */ |
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private $return_format; |
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/** @var bool defaults to false - Verify or not the SSL certificate */ |
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private $ssl_verify; |
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/** @var array data to be passed to the API */ |
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private $data; |
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/** use Traits */ |
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use Core/*, Server*/ |
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; |
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/** MoodleRestApi constructor. |
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* @param string $server_url |
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* @param string $access_token |
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* @param string $return_format |
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* @param bool $ssl_verify |
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* @throws MraException |
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*/ |
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public function __construct(/*string*/ $server_url, /*string*/ $access_token, /*string*/ $return_format = MoodleRestApi::RETURN_ARRAY, /*bool*/ $ssl_verify = false) |
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{ |
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if (!filter_var($server_url, FILTER_VALIDATE_URL)) |
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throw new MraException('Invalid URL!'); |
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$urllen = strlen($server_url) - 1; |
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$url = ($server_url[$urllen] == "/") ? mb_substr($server_url, 0, $urllen) : $server_url; |
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$this->server_url = $url . '/webservice/rest/server.php'; |
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$this->access_token = $access_token; |
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$this->return_format = $return_format; |
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$this->ssl_verify = $ssl_verify; |
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} |
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/** |
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* @return string |
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*/ |
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public function getAccessToken()/*: string*/ |
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{ |
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return $this->access_token; |
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} |
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/** |
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* @param string $access_token |
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* @return MoodleRestApi |
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*/ |
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public function setAccessToken(/*string*/ $access_token)/*: MoodleRestApi*/ |
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{ |
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$this->access_token = $access_token; |
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return $this; |
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} |
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/** |
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* @return string |
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*/ |
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public function getServerUrl()/*: string*/ |
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{ |
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return $this->server_url; |
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} |
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/** |
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* @param string $server_url |
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* @return MoodleRestApi |
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* @throws MraException |
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*/ |
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public function setServerUrl(/*string*/ $server_url)/*: MoodleRestApi*/ |
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{ |
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if (!filter_var($server_url, FILTER_VALIDATE_URL)) |
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throw new MraException('Invalid URL!'); |
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$this->server_url = $server_url; |
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return $this; |
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} |
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/** |
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* @return bool |
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*/ |
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public function getSslVerify()/*: bool*/ |
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{ |
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return $this->ssl_verify; |
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} |
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/** |
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* @param bool $ssl_verify |
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*/ |
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public function setSslVerify(/*bool*/ $ssl_verify)/*: void*/ |
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{ |
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$this->ssl_verify = $ssl_verify; |
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} |
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/** |
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* @return string |
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*/ |
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public function getReturnFormat()/*: string*/ |
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{ |
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return $this->return_format; |
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} |
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/** |
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* @param string $return_format |
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* @return MoodleRestApi |
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* @throws MraException |
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*/ |
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public function setReturnFormat(/*string*/ $return_format)/*: MoodleRestApi*/ |
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{ |
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$valid_formats = [self::RETURN_XML, self::RETURN_JSON, self::RETURN_ARRAY]; |
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if (!in_array($return_format, $valid_formats)) { |
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throw new MraException("Invalid return format: '$return_format'. Valid formats: " . implode(', ', $valid_formats)); |
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} |
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$this->return_format = $return_format; |
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return $this; |
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} |
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public function request(/*string*/ $wsfunction, array $parameters = [], $method = self::METHOD_GET) |
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{ |
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$this->data = $parameters; |
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$this->data['wsfunction'] = $wsfunction; |
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if ($method == self::METHOD_GET) { |
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return $this->execGetCurl(); |
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} else { |
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return $this->execPostCurl(); |
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} |
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} |
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/** |
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* @return array|string |
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* @throws MraException |
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*/ |
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protected function execGetCurl() |
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{ |
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$this->config(); |
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$url = $this->server_url . '?' . http_build_query($this->data); |
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try { |
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$ch = curl_init(); |
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curl_setopt($ch, CURLOPT_URL, $url); |
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); |
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curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET'); |
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curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, $this->ssl_verify); |
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$response = curl_exec($ch); |
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curl_close($ch); |
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} catch (\Exception $exception) { |
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throw new MraException($exception->getMessage(), $exception->getCode()); |
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} |
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return $this->formattedReturn($response); |
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} |
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/** |
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* @return array|string |
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* @throws MraException |
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*/ |
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protected function execPostCurl() |
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{ |
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$this->config(); |
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$params['wstoken'] = $this->data['wstoken']; |
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$params['moodlewsrestformat'] = $this->data['moodlewsrestformat']; |
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$params['wsfunction'] = $this->data['wsfunction']; |
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$url = $this->server_url . '?' . http_build_query($params); |
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unset($this->data['wstoken'], $this->data['moodlewsrestformat'], $this->data['wsfunction']); |
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try { |
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$ch = curl_init(); |
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curl_setopt($ch, CURLOPT_URL, $url); |
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); |
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curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST"); |
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curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, $this->ssl_verify); |
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curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($this->data)); |
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curl_setopt($ch, CURLOPT_POST, 1); |
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$response = curl_exec($ch); |
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curl_close($ch); |
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} catch (\Exception $exception) { |
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throw new MraException($exception->getMessage(), $exception->getCode()); |
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} |
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return $this->formattedReturn($response); |
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} |
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private function config()/*: void*/ |
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{ |
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$this->data['wstoken'] = $this->access_token; |
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if ($this->return_format == self::RETURN_ARRAY) { |
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$this->data['moodlewsrestformat'] = self::RETURN_JSON; |
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} else { |
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$this->data['moodlewsrestformat'] = $this->return_format; |
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} |
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} |
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/** |
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* @param $response |
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* @return array|string |
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*/ |
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private function formattedReturn(/*string*/ $response)/*: array*/ |
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{ |
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if ($this->return_format == self::RETURN_ARRAY) { |
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$response = json_decode($response, true); |
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} |
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return $response; |
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} |
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} |
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