/**
* @return false|KCurlHeaderResponse
*/
public function getHeader($sourceUrl, $noBody = false)
{
curl_setopt($this->ch, CURLOPT_HEADER, true);
curl_setopt($this->ch, CURLOPT_BINARYTRANSFER, true);
curl_setopt($this->ch, CURLOPT_HEADERFUNCTION, 'KCurlWrapper::read_header');
curl_setopt($this->ch, CURLOPT_WRITEFUNCTION, 'KCurlWrapper::read_body');
$this->setSourceUrlAndprotocol($sourceUrl);
if ($this->protocol == self::HTTP_PROTOCOL_FTP) {
$noBody = true;
}
if ($noBody) {
curl_setopt($this->ch, CURLOPT_NOBODY, true);
} else {
curl_setopt($this->ch, CURLOPT_RANGE, '0-0');
}
self::$headers = "";
self::$lastHeader = false;
curl_exec($this->ch);
//Added to support multiple curl executions using the same curl. Wince this is the same curl re-used we need to reset the range option before continuing forward
if (!$noBody) {
curl_setopt($this->ch, CURLOPT_RANGE, '0-');
}
if (!self::$headers) {
return false;
}
self::$headers = explode("\r\n", self::$headers);
$curlHeaderResponse = new KCurlHeaderResponse();
if ($this->protocol == self::HTTP_PROTOCOL_HTTP) {
$header = reset(self::$headers);
// this line is true if the protocol is HTTP (or HTTPS);
$matches = null;
if (preg_match('/HTTP\\/?[\\d.]{0,3} ([\\d]{3}) ([^\\n\\r]+)/', $header, $matches)) {
$curlHeaderResponse->code = $matches[1];
$curlHeaderResponse->codeName = $matches[2];
}
foreach (self::$headers as $header) {
if (!strstr($header, ':')) {
if (preg_match('/HTTP\\/?[\\d.]{0,3} ([\\d]{3}) (.+)/', $header, $matches)) {
$curlHeaderResponse->code = $matches[1];
$curlHeaderResponse->codeName = $matches[2];
}
continue;
}
list($name, $value) = explode(':', $header, 2);
$curlHeaderResponse->headers[trim(strtolower($name))] = trim($value);
}
if (!$noBody) {
$matches = null;
if (isset($curlHeaderResponse->headers['content-range']) && preg_match('/0-0\\/([\\d]+)$/', $curlHeaderResponse->headers['content-range'], $matches)) {
$curlHeaderResponse->headers['content-length'] = $matches[1];
} else {
return $this->getHeader($sourceUrl, true);
}
}
} else {
// for now - assume FTP
foreach (self::$headers as $header) {
$headerParts = explode(':', $header, 2);
if (count($headerParts) < 2) {
continue;
}
list($name, $value) = $headerParts;
$curlHeaderResponse->headers[trim(strtolower($name))] = trim($value);
}
// if this is a good ftp url - there will be a content-length header
$length = @$curlHeaderResponse->headers["content-length"];
if ($length > 0) {
// this is equivalent to a good HTTP request
$curlHeaderResponse->code = KCurlHeaderResponse::HTTP_STATUS_OK;
$curlHeaderResponse->codeName = "OK";
} else {
if (isset($curlHeaderResponse->headers["curl"])) {
// example: curl: (10) the username and/or the password are incorrect
// in this case set the error code to unknown error and use the whole string as the description
$curlHeaderResponse->code = -1;
// unknown error
$curlHeaderResponse->codeName = "curl: " . $curlHeaderResponse->headers["curl"];
} else {
// example: curl: (10) the username and/or the password are incorrect
// in this case set the error code to unknown error and use the whole string as the description
$curlHeaderResponse->code = -1;
// unknown error
$curlHeaderResponse->codeName = "Unknown FTP error";
}
}
}
curl_setopt($this->ch, CURLOPT_HEADERFUNCTION, 'KCurlWrapper::read_header_do_nothing');
curl_setopt($this->ch, CURLOPT_WRITEFUNCTION, 'KCurlWrapper::read_body_do_nothing');
return $curlHeaderResponse;
}
