/**
* Pass the object implementing the handlers
*
* @param gCurlHandlers $Handlers
*/
function setHandlers(gCurlHandlers $Handlers)
{
$Handlers->setGCurlReference($this);
$this->Response->setHandlers($Handlers);
}
/**
* The function is called for each header line
*
* @param resource ch - Curl handler resource
* @param string header_line - line of a header
*/
public function headersHandler($ch, $header_line)
{
//the length of the header should be returned
$header_len = strlen($header_line);
//first call, check if it's an HTTP response status line
if ($this->flags ^ gCurl::FLAG_HTTP_OK) {
$regexp = "~^HTTP/1\\..\\s(\\d{3})~";
if (!preg_match($regexp, $header_line, $found)) {
//Non-HTTP Response Heade
throw new gCurlException(110);
} else {
//ok, it's HTTP
$this->flags |= gCurl::FLAG_HTTP_OK;
//get response codes
$this->headers['status-line'] = rtrim($header_line);
$this->headers['status-code'] = $this->status_code = $found[1];
$this->headers['status-class'] = $this->status_class = $this->status_code[0];
$this->headers['len'] = 0;
}
} elseif ($header_len < 3 && ($header_line[0] == "\r" || $header_line[0] == "\n")) {
//Call headers handler and assign the body handler
//The content type response header can be ignored
if (!empty($this->force_content_type)) {
$this->headers['content-type'] = $this->content_type = $this->force_content_type;
}
//handlers are processed and defined here
if ($this->gCurlHandlers) {
//call headers handler
$this->gCurlHandlers->headersHandler($this->headers);
if ($this->cookies) {
//call cookies handler
$this->gCurlHandlers->cookiesHandler($this->cookies);
}
//if the body handler is defined - assign it to CURL
if ($this->gCurlHandlers->bodyHandlerName) {
$body_handler = array($this->gCurlHandlers, $this->gCurlHandlers->bodyHandlerName);
if (!is_callable($body_handler)) {
throw new gCurlException(20);
}
curl_setopt($this->ch, CURLOPT_WRITEFUNCTION, $body_handler);
}
}
} elseif ($this->headers['len'] > 1 && ($header_line[0] == ' ' || $header_line[0] == "\t")) {
$last_num = $this->headers['len']--;
//create the new full header line
$full_header = $this->headers[$last_num]['name'] . ': ' . $this->headers[$last_num]['value'] . ' ' . trim($header_line);
// reprocess it
$last_header_name = $this->headers[$last_num]['name'];
$this->headers[$last_num]['value'] = null;
$this->headers[$last_header_name]['len']--;
//recursive call - reproduce the header
$this->headersHandler($ch, $full_header);
} else {
//increase header counter
$header_num = ++$this->headers['len'];
//new header - parse it
$header = explode(':', $header_line, 2);
if (isset($header[1])) {
//header is correct, has a value after the colon
$name = strtolower(rtrim($header[0]));
$value = trim($header[1]);
//create the enumerated list of headers
$this->headers[$header_num] = array('name' => $name, 'value' => $value);
//create the associative array of headers
} else {
//it is an invalid header
$name = 'invalid';
$value = rtrim($header_line);
}
//create the associative array for faster search
//link the array to the headers value
if (empty($this->headers[$name]['len'])) {
$this->headers[$name] = array('len' => 1, 0 => $this->headers[$header_num]['value']);
} else {
$len = ++$this->headers[$name]['len'];
$this->headers[$name][$len - 1] = $this->headers[$header_num]['value'];
}
//create shortcuts for the frequently used headers and parse cookies
switch ($name) {
case 'content-type':
$this->headers['content-type'] = $value;
$semicolon = strpos($value, ';');
$charset = '';
if ($semicolon) {
$content_type = substr($value, 0, $semicolon);
$rest = ltrim(substr($value, $semicolon + 1));
if (substr($rest, 0, 7) == 'charset') {
$charset = substr($rest, 8);
}
} else {
$content_type = $value;
}
$this->headers['ctype'] = $this->content_type = $content_type;
$this->headers['charset'] = $charset;
break;
case 'last-modified':
$this->headers['last-modified'] = $value;
break;
case 'content-length':
$this->headers['content-length'] = $value;
break;
case 'content-disposition':
$this->headers['content-disposition'] = $value;
break;
case 'set-cookie':
$this->parseCookie($value);
break;
//redirect detected
//redirect detected
case 'location':
$this->headers['location'] = $value;
//body can be skipped
curl_setopt($this->ch, CURLOPT_NOBODY, true);
break;
}
}
return $header_len;
}
