/**
* @param string $value
* @return string mixed
*
* @throws \Icicle\Http\Exception\InvalidValueException
*/
protected function filterValue($value) : string
{
$value = (string) $value;
if (preg_match("/[^!#-#--:<-[]-~]/", $value)) {
throw new InvalidValueException('Invalid cookie header value.');
}
return Message\decode($value);
}
/**
* @param \Icicle\Stream\Structures\Buffer $buffer
* @param \Icicle\Socket\Socket $socket
* @param float|int $timeout
*
* @return \Generator
*
* @throws \Icicle\Http\Exception\MessageException
* @throws \Icicle\Http\Exception\ParseException
*/
protected function readHeaders(Buffer $buffer, Socket $socket, float $timeout = 0) : \Generator
{
$size = 0;
$headers = [];
do {
while (false === ($position = $buffer->search("\r\n"))) {
if ($buffer->getLength() >= $this->maxSize) {
throw new MessageException(Response::REQUEST_HEADER_TOO_LARGE, sprintf('Message header exceeded maximum size of %d bytes.', $this->maxSize));
}
$buffer->push(yield from $socket->read(0, null, $timeout));
}
$length = $position + 2;
$line = $buffer->shift($length);
if (2 === $length) {
return $headers;
}
$size += $length;
$parts = explode(':', $line, 2);
if (2 !== count($parts)) {
throw new ParseException('Found header without colon.');
}
list($name, $value) = $parts;
$name = Message\decode($name);
$value = Message\decode(trim($value));
// No check for case as Message class will automatically combine similarly named headers.
if (!isset($headers[$name])) {
$headers[$name] = [$value];
} else {
$headers[$name][] = $value;
}
} while ($size < $this->maxSize);
throw new MessageException(Response::REQUEST_HEADER_TOO_LARGE, sprintf('Message header exceeded maximum size of %d bytes.', $this->maxSize));
}
