/**
* Callback function called by cURL for saving the response headers
*
* @param resource cURL handle
* @param string response header (with trailing CRLF)
* @return integer number of bytes saved
* @see Diglin_HTTP_Request2_Response::parseHeaderLine()
*/
protected function callbackWriteHeader($ch, $string)
{
// we may receive a second set of headers if doing e.g. digest auth
if ($this->eventReceivedHeaders || !$this->eventSentHeaders) {
// don't bother with 100-Continue responses (bug #15785)
if (!$this->eventSentHeaders || $this->response->getStatus() >= 200) {
$this->request->setLastEvent('sentHeaders', curl_getinfo($ch, CURLINFO_HEADER_OUT));
}
$upload = curl_getinfo($ch, CURLINFO_SIZE_UPLOAD);
// if body wasn't read by a callback, send event with total body size
if ($upload > $this->position) {
$this->request->setLastEvent('sentBodyPart', $upload - $this->position);
$this->position = $upload;
}
$this->eventSentHeaders = true;
// we'll need a new response object
if ($this->eventReceivedHeaders) {
$this->eventReceivedHeaders = false;
$this->response = null;
}
}
if (empty($this->response)) {
$this->response = new Diglin_HTTP_Request2_Response($string, false);
} else {
$this->response->parseHeaderLine($string);
if ('' == trim($string)) {
// don't bother with 100-Continue responses (bug #15785)
if (200 <= $this->response->getStatus()) {
$this->request->setLastEvent('receivedHeaders', $this->response);
}
// for versions lower than 5.2.10, check the redirection URL protocol
if ($this->request->getConfig('follow_redirects') && !defined('CURLOPT_REDIR_PROTOCOLS') && $this->response->isRedirect()) {
$redirectUrl = new Diglin_Net_URL2($this->response->getHeader('location'));
if ($redirectUrl->isAbsolute() && !in_array($redirectUrl->getScheme(), array('http', 'https'))) {
return -1;
}
}
$this->eventReceivedHeaders = true;
}
}
return strlen($string);
}
/**
* Reads the remote server's response
*
* @return Diglin_HTTP_Request2_Response
* @throws Diglin_HTTP_Request2_Exception
*/
protected function readResponse()
{
$bufferSize = $this->request->getConfig('buffer_size');
do {
$response = new Diglin_HTTP_Request2_Response($this->readLine($bufferSize), true);
do {
$headerLine = $this->readLine($bufferSize);
$response->parseHeaderLine($headerLine);
} while ('' != $headerLine);
} while (in_array($response->getStatus(), array(100, 101)));
$this->request->setLastEvent('receivedHeaders', $response);
// No body possible in such responses
if (Diglin_HTTP_Request2::METHOD_HEAD == $this->request->getMethod() || Diglin_HTTP_Request2::METHOD_CONNECT == $this->request->getMethod() && 200 <= $response->getStatus() && 300 > $response->getStatus() || in_array($response->getStatus(), array(204, 304))) {
return $response;
}
$chunked = 'chunked' == $response->getHeader('transfer-encoding');
$length = $response->getHeader('content-length');
$hasBody = false;
if ($chunked || null === $length || 0 < intval($length)) {
// RFC 2616, section 4.4:
// 3. ... If a message is received with both a
// Transfer-Encoding header field and a Content-Length header field,
// the latter MUST be ignored.
$toRead = $chunked || null === $length ? null : $length;
$this->chunkLength = 0;
while (!feof($this->socket) && (is_null($toRead) || 0 < $toRead)) {
if ($chunked) {
$data = $this->readChunked($bufferSize);
} elseif (is_null($toRead)) {
$data = $this->fread($bufferSize);
} else {
$data = $this->fread(min($toRead, $bufferSize));
$toRead -= strlen($data);
}
if ('' == $data && (!$this->chunkLength || feof($this->socket))) {
break;
}
$hasBody = true;
if ($this->request->getConfig('store_body')) {
$response->appendBody($data);
}
if (!in_array($response->getHeader('content-encoding'), array('identity', null))) {
$this->request->setLastEvent('receivedEncodedBodyPart', $data);
} else {
$this->request->setLastEvent('receivedBodyPart', $data);
}
}
}
if ($hasBody) {
$this->request->setLastEvent('receivedBody', $response);
}
return $response;
}
/**
* Creates a new Diglin_HTTP_Request2_Response object from a file
*
* @param resource file pointer returned by fopen()
* @return Diglin_HTTP_Request2_Response
* @throws Diglin_HTTP_Request2_Exception
*/
public static function createResponseFromFile($fp)
{
$response = new Diglin_HTTP_Request2_Response(fgets($fp));
do {
$headerLine = fgets($fp);
$response->parseHeaderLine($headerLine);
} while ('' != trim($headerLine));
while (!feof($fp)) {
$response->appendBody(fread($fp, 8192));
}
return $response;
}
