oxcurl.php

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<?php

class oxCurl
{

    protected $_rCurl = null;

    protected $_sUrl = null;

    protected $_sQuery = null;

    protected $_sMethod = 'POST';

    protected $_aParameters = null;

    protected $_sConnectionCharset = "UTF-8";

    protected $_aHeader = null;

    protected $_sHost = null;

    protected $_aOptions = array('CURLOPT_RETURNTRANSFER' => 1);

    protected $_sStatusCode = null;

    public function setUrl($sUrl)
    {
        $this->_sUrl = $sUrl;
    }

    public function getUrl()
    {
        if ($this->getMethod() == "GET" && $this->getQuery()) {
            $this->_sUrl = $this->_sUrl . "?" . $this->getQuery();
        }

        return $this->_sUrl;
    }

    public function setQuery($sQuery)
    {
        $this->_sQuery = $sQuery;
    }

    public function getQuery()
    {
        if (is_null($this->_sQuery)) {
            $sQuery = "";
            if ($aParams = $this->getParameters()) {
                $aParams = $this->_prepareQueryParameters($aParams);
                $sQuery = http_build_query($aParams, "", "&");
            }
            $this->setQuery($sQuery);
        }

        return $this->_sQuery;
    }

    public function setParameters($aParameters)
    {
        $this->setQuery(null);
        $this->_aParameters = $aParameters;
    }

    public function getParameters()
    {
        return $this->_aParameters;
    }

    public function setHost($sHost)
    {
        $this->_sHost = $sHost;
    }

    public function getHost()
    {
        return $this->_sHost;
    }

    public function setHeader($aHeader = null)
    {
        if (is_null($aHeader) && $this->getMethod() == "POST") {
            $sHost = $this->getHost();

            $aHeader = array();
            $aHeader[] = 'POST /cgi-bin/webscr HTTP/1.1';
            $aHeader[] = 'Content-Type: application/x-www-form-urlencoded';
            if (isset($sHost)) {
                $aHeader[] = 'Host: ' . $sHost;
            }
            $aHeader[] = 'Connection: close';
        }
        $this->_aHeader = $aHeader;
    }

    public function getHeader()
    {
        if (is_null($this->_aHeader)) {
            $this->setHeader();
        }

        return $this->_aHeader;
    }

    public function setMethod($sMethod)
    {
        $this->_sMethod = strtoupper($sMethod);
    }

    public function getMethod()
    {
        return $this->_sMethod;
    }

    public function setOption($sName, $sValue)
    {
        if (strpos($sName, 'CURLOPT_') !== 0 || !defined($sConstant = strtoupper($sName))) {
            $oException = oxNew('oxException');
            $oLang = oxRegistry::getLang();
            $oException->setMessage(sprintf($oLang->translateString('EXCEPTION_NOT_VALID_CURL_CONSTANT', $oLang->getTplLanguage()), $sName));
            throw $oException;
        }

        $this->_aOptions[$sName] = $sValue;
    }

    public function getOptions()
    {
        return $this->_aOptions;
    }

    public function execute()
    {
        $this->_setOptions();

        $sResponse = $this->_execute();
        $this->_saveStatusCode();

        $iCurlErrorNumber = $this->_getErrorNumber();

        $this->_close();

        if ($iCurlErrorNumber) {
            $oException = oxNew('oxException');
            $oLang = oxRegistry::getLang();
            $oException->setMessage(sprintf($oLang->translateString('EXCEPTION_CURL_ERROR', $oLang->getTplLanguage()), $iCurlErrorNumber));
            throw $oException;
        }

        return $sResponse;
    }

    public function setConnectionCharset($sCharset)
    {
        $this->_sConnectionCharset = $sCharset;
    }

    public function getConnectionCharset()
    {
        return $this->_sConnectionCharset;
    }

    public function getStatusCode()
    {
        return $this->_sStatusCode;
    }

    protected function _setResource($rCurl)
    {
        $this->_rCurl = $rCurl;
    }

    protected function _getResource()
    {
        if (is_null($this->_rCurl)) {
            $this->_setResource(curl_init());
        }

        return $this->_rCurl;
    }

    protected function _setOptions()
    {
        if (!is_null($this->getHeader())) {
            $this->_setOpt(CURLOPT_HTTPHEADER, $this->getHeader());
        }
        $this->_setOpt(CURLOPT_URL, $this->getUrl());

        if ($this->getMethod() == "POST") {
            $this->_setOpt(CURLOPT_POST, 1);
            $this->_setOpt(CURLOPT_POSTFIELDS, $this->getQuery());
        }

        $aOptions = $this->getOptions();
        if (count($aOptions)) {
            foreach ($aOptions as $sName => $mValue) {
                $this->_setOpt(constant($sName), $mValue);
            }
        }
    }

    protected function _execute()
    {
        return curl_exec($this->_getResource());
    }

    protected function _close()
    {
        curl_close($this->_getResource());
        $this->_setResource(null);
    }

    protected function _setOpt($sName, $sValue)
    {
        curl_setopt($this->_getResource(), $sName, $sValue);
    }

    protected function _getErrorNumber()
    {
        return curl_errno($this->_getResource());
    }

    protected function _saveStatusCode()
    {
        $this->_sStatusCode = curl_getinfo($this->_getResource(), CURLINFO_HTTP_CODE);
    }

    protected function _prepareQueryParameters($aParams)
    {
        $aParams = array_filter($aParams);
        $aParams = array_map(array($this, '_htmlDecode'), $aParams);

        return $aParams;
    }

    protected function _htmlDecode($mParam)
    {
        if (is_array($mParam)) {
            $mParam = $this->_prepareQueryParameters($mParam);
        } else {
            $mParam = html_entity_decode(stripslashes($mParam), ENT_QUOTES, $this->getConnectionCharset());
        }

        return $mParam;
    }
}