/**
* Read and validate the request.
*
* @return bool TRUE if valid.
*/
public function validate()
{
$requestLine = $this->httpRequest->getRequestLine();
if (preg_match(',^GET /[^ ]* HTTP/1.1$,', $requestLine) !== 1) {
$this->httpResponse->setStatus("400 Bad Request");
} else {
if (stristr($this->httpRequest->getHeader("Upgrade"), "websocket") === false) {
$this->reject("400 Unrecognised Upgrade header");
} else {
if (stristr($this->httpRequest->getHeader("Connection"), "Upgrade") === false) {
$this->reject("400 Unrecognised Connection header");
} else {
if ($this->httpRequest->getHeader("Sec-WebSocket-Version") !== "13") {
$this->reject("400 Unrecognised Sec-WebSocket-Version header");
} else {
if (($this->key = $this->httpRequest->getHeader("Sec-WebSocket-Key")) === null) {
$this->reject("400 Unrecognised Sec-WebSocket-Key");
} else {
if (($protocols = $this->httpRequest->getHeader("Sec-WebSocket-Protocol")) === null) {
$this->reject("400 Unrecognised Sec-WebSocket-Protocol");
} else {
$this->protocols = explode(',', $protocols);
$this->protocol = $this->protocols[0];
$this->httpResponse->setStatus("101 Switching Protocols");
return true;
}
}
}
}
}
}
return false;
}
/**
* @param HttpRequest $req
*/
public function applyCookie($req)
{
// fetch cookies
$host = $req->getHeader('host');
$path = $req->getUrlParam('path');
$cookies = $this->fetchCookieToSend($host, $path);
if ($this !== $req) {
$cookies = array_merge($cookies, $req->fetchCookieToSend($host, $path));
}
// add to header
$req->setHeader('cookie', null);
foreach (array_chunk(array_values($cookies), 3) as $chunk) {
$req->addHeader('cookie', implode('; ', $chunk));
}
}
private function request($path, $method, $data = "")
{
$data = trim($data);
$httpRequest = new HttpRequest();
$httpRequest->setOptions(array("useragent" => "Scalr (http://scalr.com)"));
$fullUrl = "{$this->chefServerUrl}{$path}";
$chunks = parse_url($fullUrl);
if ($method == 'POST' && $data) {
if (is_array($data)) {
$httpRequest->setPostFields($data);
} else {
$httpRequest->setBody($data);
}
}
if ($method == 'PUT' && $data) {
$httpRequest->setPutData($data);
}
$httpRequest->setUrl($fullUrl);
$httpRequest->setMethod(constant("HTTP_METH_{$method}"));
$tz = @date_default_timezone_get();
date_default_timezone_set("UTC");
$timestamp = date("Y-m-d\\TH:i:s\\Z");
date_default_timezone_set($tz);
$chunks['path'] = str_replace('//', '/', $chunks['path']);
$hashedPath = base64_encode(sha1($chunks['path'], true));
$hashedBody = base64_encode(sha1($data, true));
$userId = $this->username;
$str = "Method:{$method}\n" . "Hashed Path:{$hashedPath}\n" . "X-Ops-Content-Hash:{$hashedBody}\n" . "X-Ops-Timestamp:{$timestamp}\n" . "X-Ops-UserId:{$userId}";
$headers = array('x-ops-sign' => "algorithm=sha1;version=1.0", 'x-chef-version' => "0.10.8", 'x-ops-userid' => $userId, 'x-ops-timestamp' => $timestamp, 'x-ops-content-hash' => $hashedBody, 'content-type' => 'application/json', 'accept' => 'application/json');
$r = array_merge($headers, $this->sign($str));
$httpRequest->addHeaders($r);
$httpRequest->send();
if ($httpRequest->getResponseCode() == 401) {
throw new Exception("Failed to authenticate as {$userId}. Ensure that your node_name and client key are correct.");
}
if ($httpRequest->getResponseCode() == 404) {
throw new Exception("Client not found or parameters are not valid");
} else {
if ($httpRequest->getResponseCode() <= 205) {
$data = $httpRequest->getResponseData();
$retval = $data['body'] ? json_decode($data['body']) : true;
} else {
if ($httpRequest->getResponseCode() >= 300 && $httpRequest->getResponseCode() < 400) {
throw new Exception("Request to chef server failed. Chef server returned code {$httpRequest->getResponseCode()}. Redirect URL: {$httpRequest->getHeader("Location")}");
} else {
if ($httpRequest->getResponseCode() > 400) {
$data = $httpRequest->getResponseData();
$msg = $data['body'] ? json_decode($data['body']) : "";
if (is_array($msg->error)) {
$msg = $msg->error[0];
} elseif ($msg->error) {
$msg = $msg->error;
} else {
$msg = "Unknown error. Error code: {$httpRequest->getResponseCode()}";
}
throw new Exception("Request to chef server failed with error: {$msg} ({$method} {$path})");
} else {
throw new Exception("Unexpected situation. Response code {$httpRequest->getResponseCode()}");
}
}
}
}
return $retval;
}
