Example Class API PHP

From Openprovider API documentation

Revision as of 07:40, 23 January 2013

<?php

  class OP_API_Exception extends Exception
  {
  }

  class OP_API
  {
      protected $url = null;
      protected $error = null;
      protected $timeout = null;
      protected $debug = null;
      static public $encoding = 'UTF-8';
      public function __construct ($url, $timeout = 1000)
      {
          $this->url = $url;
          $this->timeout = $timeout;
      }
      public function setDebug ($v)
      {
          $this->debug = $v;
          return $this;
      }
      public function processRawReply (OP_Request $r) {
          if ($this->debug) {
              echo $r->getRaw() . "\n";
          }
          $msg = $r->getRaw();
          $str = $this->_send($msg);
          if (!$str) {
              throw new OP_API_Exception("Bad reply", 4004);
          }
          if ($this->debug) {
              echo $str . "\n";
          }
          return $str;
      }
      public function process (OP_Request $r) {
          if ($this->debug) {
              echo $r->getRaw() . "\n";
          }
  
          $msg = $r->getRaw();
          $str = $this->_send($msg);
          if (!$str) {
              throw new OP_API_Exception("Bad reply", 4004);
          }
          if ($this->debug) {
              echo $str . "\n";
          }
          return new OP_Reply($str);
      }
      static function encode ($str)
      {
          $ret = @htmlentities($str, null, OP_API::$encoding);
          if (strlen($str) && !strlen($ret)) {
              $str = iconv('ISO-8859-1', 'UTF-8', $str);
              $ret = htmlentities($str, null, OP_API::$encoding);
          }
          return $ret;
      }
      static function decode ($str)
      {
          return html_entity_decode($str, null, OP_API::$encoding);
      }
      static function createRequest ($xmlStr = null)
      {
          return new OP_Request ($xmlStr);
      }
      static function createReply ($xmlStr = null)
      {
          return new OP_Reply ($xmlStr);
      }
      protected function _send ($str)
      {
          $ch = curl_init();
          curl_setopt($ch, CURLOPT_URL, $this->url);
          curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
          curl_setopt($ch, CURLOPT_HEADER, 0);
          curl_setopt($ch, CURLOPT_POST, 1);
          curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
          curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
          curl_setopt($ch, CURLOPT_POSTFIELDS, $str);
          curl_setopt($ch, CURLOPT_TIMEOUT, $this->timeout);
          $ret = curl_exec ($ch);
          $errno = curl_errno($ch);
          $this->error = $error = curl_error($ch);
          curl_close ($ch);
  
          if ($errno) {
              error_log("CURL error. Code: $errno, Message: $error");
              return false;
          } else {
              return $ret;
          }
      }

      public static function convertXmlToPhpObj ($node)
      {
          $ret = array();
  
          if (is_object($node) && $node->hasChildNodes()) {
              foreach ($node->childNodes as $child) {
                  $name = self::decode($child->nodeName);
                  if ($child->nodeType == XML_TEXT_NODE) {
                      $ret = self::decode($child->nodeValue);
                  } else {
                      if ('array' === $name) {
                          return self::parseArray($child);
                      } else {
                          $ret[$name] = self::convertXmlToPhpObj($child);
                      }
                  }
              }
          }
          return 0 < count($ret) ? $ret : null;
      }

      protected static function parseArray ($node)
      {
          $ret = array();
          foreach ($node->childNodes as $child) {
              $name = self::decode($child->nodeName);
              if ('item' !== $name) {
                  throw new OP_API_Exception('Wrong message format', 4006);
              }
              $ret[] = self::convertXmlToPhpObj($child);
          }
          return $ret;
      }
      /**
       * converts php-structure to DOM-object.
       *
       * @param array $arr php-structure
       * @param SimpleXMLElement $node parent node where new element to attach
       * @param DOMDocument $dom DOMDocument object
       * @return SimpleXMLElement
       */
      public static function convertPhpObjToDom ($arr, $node, $dom)
      {
          if (is_array($arr)) {
              /**
               * If arr has integer keys, this php-array must be converted in
               * xml-array representation (<array><item>..</item>..</array>)
               */
              $arrayParam = array();
              foreach ($arr as $k => $v) {
                  if (is_integer($k)) {
                      $arrayParam[] = $v;
                  }
              }
              if (0 < count($arrayParam)) {
                  $node->appendChild($arrayDom = $dom->createElement("array"));
                  foreach ($arrayParam as $key => $val) {
                      $new = $arrayDom->appendChild($dom->createElement('item'));
                      self::convertPhpObjToDom($val, $new, $dom);
                  }
              } else {
                  foreach ($arr as $key => $val) {
                      $new = $node->appendChild(
                          $dom->createElement(self::encode($key))
                      );
                      self::convertPhpObjToDom($val, $new, $dom);
                  }
              }
          } else {
              $node->appendChild($dom->createTextNode(self::encode($arr)));
          }
      }
  }
  class OP_Request
  {
      protected $cmd = null;
      protected $args = null;
      protected $username = null;
      protected $password = null;
      protected $hash = null;
      protected $token = null;
      protected $ip = null;
      protected $language = null;
      protected $raw = null;
      protected $misc = null;
      public function __construct ($str = null) {
          if ($str) {
              $this->raw = $str;
              $this->_parseRequest($str);
          }
      }
      /*
       * Parse request string to assign object properties with command name and
       * arguments structure
       *
       * @return void
       *
       * @uses OP_Request::__construct()
       */
      protected function _parseRequest ($str = "")
      {
          $dom = new DOMDocument;
          $dom->loadXML($str, LIBXML_NOBLANKS);
          $arr = OP_API::convertXmlToPhpObj($dom->documentElement);
          list($dummy, $credentials) = each($arr);
          list($this->cmd, $this->args) = each($arr);
          $this->username = $credentials['username'];
          $this->password = $credentials['password'];
          $this->hash = $credentials['hash'];
          if (isset($credentials['misc'])) {
              $this->misc = $credentials['misc'];
          }
          $this->token = isset($credentials['token']) ? $credentials['token'] : null;
          $this->ip = isset($credentials['ip']) ? $credentials['ip'] : null;
          if (isset($credentials['language'])) {
              $this->language = $credentials['language'];
          }
      }
      public function setCommand ($v)
      {
          $this->cmd = $v;
          return $this;
      }
      public function getCommand ()
      {
          return $this->cmd;
      }
      public function setLanguage ($v)
      {
          $this->language = $v;
          return $this;
      }
      public function getLanguage ()
      {
          return $this->language;
      }
      public function setArgs ($v)
      {
          $this->args = $v;
          return $this;
      }
      public function getArgs ()
      {
          return $this->args;
      }
      public function setMisc ($v)
      {
          $this->misc = $v;
          return $this;
      }
      public function getMisc ()
      {
          return $this->misc;
      }
      public function setAuth ($args)
      {
          $this->username = isset($args["username"]) ? $args["username"] : null;
          $this->password = isset($args["password"]) ? $args["password"] : null;
          $this->hash = isset($args["hash"]) ? $args["hash"] : null;
          $this->token = isset($args["token"]) ? $args["token"] : null;
          $this->ip = isset($args["ip"]) ? $args["ip"] : null;
          $this->misc = isset($args["misc"]) ? $args["misc"] : null;
          return $this;
      }
      public function getAuth ()
      {
          return array(
              "username" => $this->username,
              "password" => $this->password,
              "hash" => $this->hash,
              "token" => $this->token,
              "ip" => $this->ip,
              "misc" => $this->misc,
          );
      }
      public function getRaw ()
      {
          if (!$this->raw) {
              $this->raw .= $this->_getRequest();
          }
          return $this->raw;
      }
      public function _getRequest ()
      {
          $dom = new DOMDocument('1.0', OP_API::$encoding);
  
          $credentialsElement = $dom->createElement('credentials');
          $usernameElement = $dom->createElement('username');
          $usernameElement->appendChild(
              $dom->createTextNode(OP_API::encode($this->username))
          );
          $credentialsElement->appendChild($usernameElement);
  
          $passwordElement = $dom->createElement('password');
          $passwordElement->appendChild(
              $dom->createTextNode(OP_API::encode($this->password))
          );
          $credentialsElement->appendChild($passwordElement);
  
          $hashElement = $dom->createElement('hash');
          $hashElement->appendChild(
              $dom->createTextNode(OP_API::encode($this->hash))
          );
          $credentialsElement->appendChild($hashElement);
  
          if (isset($this->language)) {
              $languageElement = $dom->createElement('language');
              $languageElement->appendChild($dom->createTextNode($this->language));
              $credentialsElement->appendChild($languageElement);
          }
  
          if (isset($this->token)) {
              $tokenElement = $dom->createElement('token');
              $tokenElement->appendChild($dom->createTextNode($this->token));
              $credentialsElement->appendChild($tokenElement);
          }
  
          if (isset($this->ip)) {
              $ipElement = $dom->createElement('ip');
              $ipElement->appendChild($dom->createTextNode($this->ip));
              $credentialsElement->appendChild($ipElement);
          }
  
          if (isset($this->misc)) {
              $miscElement = $dom->createElement('misc');
              $credentialsElement->appendChild($miscElement);
              OP_API::convertPhpObjToDom($this->misc, $miscElement, $dom);
          }
  
          $rootElement = $dom->createElement('openXML');
          $rootElement->appendChild($credentialsElement);
  
          $rootNode = $dom->appendChild($rootElement);
          $cmdNode = $rootNode->appendChild(
              $dom->createElement($this->getCommand())
          );
          OP_API::convertPhpObjToDom($this->args, $cmdNode, $dom);
  
          return $dom->saveXML();
      }
  }
  class OP_Reply
  {
      protected $faultCode = 0;
      protected $faultString = null;
      protected $value = array();
      protected $warnings = array();
      protected $raw = null;
      protected $maintenance = null;
  
      public function __construct ($str = null) {
          if ($str) {
              $this->raw = $str;
              $this->_parseReply($str);
          }
      }
      protected function _parseReply ($str = "")
      {
          $dom = new DOMDocument;
          $result = $dom->loadXML(trim($str));
          if (!$result) {
              error_log("Cannot parse xml: '$str'");
          }
  
          $arr = OP_API::convertXmlToPhpObj($dom->documentElement);
          if ((!is_array($arr) && trim($arr) == "") ||
              $arr['reply']['code'] == 4005)
          {
              throw new OP_API_Exception("API is temprorarily unavailable due to maintenance", 4005);
          }
  
          $this->faultCode = (int) $arr['reply']['code'];
          $this->faultString = $arr['reply']['desc'];
          $this->value = $arr['reply']['data'];
          if (isset($arr['reply']['warnings'])) {
              $this->warnings = $arr['reply']['warnings'];
          }
          if (isset($arr['reply']['maintenance'])) {
              $this->maintenance = $arr['reply']['maintenance'];
          }
      }
      public function setFaultCode ($v)
      {
          $this->faultCode = $v;
          return $this;
      }
      public function setFaultString ($v)
      {
          $this->faultString = $v;
          return $this;
      }
      public function setValue ($v)
      {
          $this->value = $v;
          return $this;
      }
      public function getValue ()
      {
          return $this->value;
      }
      public function setWarnings ($v)
      {
          $this->warnings = $v;
          return $this;
      }
      public function getWarnings ()
      {
          return $this->warnings;
      }
      public function getMaintenance ()
      {
          return $this->maintenance;
      }
      public function getFaultString () {
          return $this->faultString;
      }
      public function getFaultCode ()
      {
          return $this->faultCode;
      }
      public function getRaw ()
      {
          if (!$this->raw) {
              $this->raw .= $this->_getReply ();
          }
          return $this->raw;
      }
      public function _getReply ()
      {
          $dom = new DOMDocument('1.0', OP_API::$encoding);
          $rootNode = $dom->appendChild($dom->createElement('openXML'));
          $replyNode = $rootNode->appendChild($dom->createElement('reply'));
          $codeNode = $replyNode->appendChild($dom->createElement('code'));
          $codeNode->appendChild($dom->createTextNode($this->faultCode));
          $descNode = $replyNode->appendChild($dom->createElement('desc'));
          $descNode->appendChild(
              $dom->createTextNode(OP_API::encode($this->faultString))
          );
          $dataNode = $replyNode->appendChild($dom->createElement('data'));
          OP_API::convertPhpObjToDom($this->value, $dataNode, $dom);
          if (0 < count($this->warnings)) {
              $warningsNode = $replyNode->appendChild($dom->createElement('warnings'));
              OP_API::convertPhpObjToDom($this->warnings, $warningsNode, $dom);
          }
          return $dom->saveXML();
      }
  }

?>