/**
* Extract the headers from a response string
*
* @param string $response_str
* @return array
*/
public static function extractHeaders($response_str)
{
$headers = array();
// First, split body and headers. Headers are separated from the
// message at exactly the sequence "\r\n\r\n"
$parts = preg_split('|(?:\\r\\n){2}|m', $response_str, 2);
if (!$parts[0]) {
return $headers;
}
// Split headers part to lines; "\r\n" is the only valid line separator.
$lines = explode("\r\n", $parts[0]);
unset($parts);
$last_header = null;
foreach ($lines as $index => $line) {
if ($index === 0 && preg_match('#^HTTP/\\d+(?:\\.\\d+) [1-5]\\d+#', $line)) {
// Status line; ignore
continue;
}
if ($line == "") {
// Done processing headers
break;
}
// Locate headers like 'Location: ...' and 'Location:...' (note the missing space)
if (preg_match("|^([\\w-]+):\\s*(.+)|s", $line, $m)) {
unset($last_header);
$h_name = strtolower($m[1]);
$h_value = $m[2];
Zend_Http_Header_HeaderValue::assertValid($h_value);
if (isset($headers[$h_name])) {
if (!is_array($headers[$h_name])) {
$headers[$h_name] = array($headers[$h_name]);
}
$headers[$h_name][] = $h_value;
$last_header = $h_name;
continue;
}
$headers[$h_name] = $h_value;
$last_header = $h_name;
continue;
}
// Identify header continuations
if (preg_match("|^[ \t](.+)\$|s", $line, $m) && $last_header !== null) {
$h_value = trim($m[1]);
if (is_array($headers[$last_header])) {
end($headers[$last_header]);
$last_header_key = key($headers[$last_header]);
$h_value = $headers[$last_header][$last_header_key] . $h_value;
Zend_Http_Header_HeaderValue::assertValid($h_value);
$headers[$last_header][$last_header_key] = $h_value;
continue;
}
$h_value = $headers[$last_header] . $h_value;
Zend_Http_Header_HeaderValue::assertValid($h_value);
$headers[$last_header] = $h_value;
continue;
}
// Anything else is an error condition
// require_once 'Zend/Http/Exception.php';
throw new Zend_Http_Exception('Invalid header line detected');
}
return $headers;
}
/**
* @param string $path
*/
public function setPath($path)
{
Zend_Http_Header_HeaderValue::assertValid($path);
$this->path = $path;
return $this;
}
/**
* @dataProvider assertValues
* @group ZF2015-04
*/
public function testAssertValidRaisesExceptionForInvalidValue($value)
{
$this->setExpectedException('Zend_Http_Header_Exception_InvalidArgumentException');
Zend_Http_Header_HeaderValue::assertValid($value);
}
/**
* Ensure a header value is valid per RFC 7230.
*
* @see http://tools.ietf.org/html/rfc7230#section-3.2
* @param string|object|array $value
* @param bool $recurse
*/
protected function _validateHeaderValue($value, $recurse = true)
{
if (is_array($value) && $recurse) {
foreach ($value as $v) {
$this->_validateHeaderValue($v, false);
}
return;
}
// Cast integers and floats to strings for purposes of header representation.
if (is_int($value) || is_float($value)) {
$value = (string) $value;
}
if (!is_string($value) && (!is_object($value) || !method_exists($value, '__toString'))) {
#require_once 'Zend/Http/Exception.php';
throw new Zend_Http_Exception('Invalid header value detected');
}
Zend_Http_Header_HeaderValue::assertValid($value);
}