/usr/share/php/Horde/Oauth/Request.php is in php-horde-oauth 2.0.4-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/**
* Copyright 2008-2017 Horde LLC (http://www.horde.org/)
*
* @author Chuck Hagenbuch <chuck@horde.org>
* @license http://www.horde.org/licenses/bsd BSD
* @category Horde
* @package Oauth
*/
/**
* OAuth request class
*
* @author Chuck Hagenbuch <chuck@horde.org>
* @license http://www.horde.org/licenses/bsd BSD
* @category Horde
* @package Oauth
*/
class Horde_Oauth_Request
{
const VERSION = '1.0';
protected $_params = array();
protected $_url;
protected $_method;
function __construct($url, $params = array(), $method = 'POST')
{
if (!isset($params['oauth_version'])) {
$params['oauth_version'] = self::VERSION;
}
if (!isset($params['oauth_nonce'])) {
$params['oauth_nonce'] = self::_generateNonce();
}
if (!isset($params['oauth_timestamp'])) {
$params['oauth_timestamp'] = time();
}
$this->_params = $params;
$this->_url = $url;
$this->_method = $method;
}
/**
* Sign this request in accordance with OAuth
*
* @param $signatureMethod
* @param $consumer
* @param $token
* @return unknown_type
*/
public function sign($signatureMethod, $consumer, $token = null)
{
if (empty($this->_params['oauth_consumer_key'])) {
$this->_params['oauth_consumer_key'] = $consumer->key;
}
if (empty($this->_params['oauth_token']) && !empty($token)) {
$this->_params['oauth_token'] = $token->key;
}
$this->_params['oauth_signature_method'] = $signatureMethod->getName();
$this->_params['oauth_signature'] = $signatureMethod->sign($this, $consumer, $token);
return $this->_getNormalizedUrl() . '?' . $this->buildHttpQuery();
}
/**
* Returns the signable string of this request
*
* The base string is defined as the method, the url and the parameters
* (normalized), each urlencoded and concatenated with &.
*/
public function getSignatureBaseString()
{
$parts = array(
$this->_getNormalizedHttpMethod(),
$this->_getNormalizedUrl(),
$this->_getSignableParameters()
);
return implode('&', array_map(array('Horde_Oauth_Utils', 'urlencodeRfc3986'), $parts));
}
/**
* Get a query string suitable for use in a URL or as POST data.
*/
public function buildHttpQuery()
{
$parts = array();
foreach ($this->_params as $k => $v) {
$parts[] = Horde_Oauth_Utils::urlencodeRfc3986($k) . '=' . Horde_Oauth_Utils::urlencodeRfc3986($v);
}
return implode('&', $parts);
}
/**
*/
public function buildAuthorizationHeader($realm = '')
{
$header = '';
foreach ($this->_params as $k => $v) {
if (strpos($k, 'oauth_') !== false) {
$header .= Horde_Oauth_Utils::urlencodeRfc3986($k) . '="' . Horde_Oauth_Utils::urlencodeRfc3986($v) . '",';
}
}
$header = substr($header, 0, -1);
if (!empty($realm)) {
$header .= ',realm="' . Horde_Oauth_Utils::urlencodeRfc3986($realm) . '"';
}
return 'OAuth ' . $header;
}
/**
* Generate a nonce.
*/
protected static function _generateNonce()
{
$mt = microtime();
$rand = mt_rand();
return hash('md5', microtime() . mt_rand());
}
/**
* Returns the normalized parameters of the request
*
* This will be all parameters except oauth_signature, sorted first by key,
* and if there are duplicate keys, then by value.
*
* The returned string will be all the key=value pairs concatenated by &.
*
* @return string
*/
protected function _getSignableParameters()
{
// Grab all parameters
$params = $this->_params;
// Remove oauth_signature if present
if (isset($params['oauth_signature'])) {
unset($params['oauth_signature']);
}
// Urlencode both keys and values
$keys = array_map(array('Horde_Oauth_Utils', 'urlencodeRfc3986'), array_keys($params));
$values = array_map(array('Horde_Oauth_Utils', 'urlencodeRfc3986'), array_values($params));
$params = array_combine($keys, $values);
// Sort by keys (natsort)
uksort($params, 'strnatcmp');
// Generate key=value pairs
$pairs = array();
foreach ($params as $key => $value) {
if (is_array($value)) {
// If the value is an array, it's because there are multiple values
// with the same key. Sort them, then add all the pairs.
natsort($value);
foreach ($value as $v2) {
$pairs[] = $key . '=' . $v2;
}
} else {
$pairs[] = $key . '=' . $value;
}
}
// Return the pairs, concatenated with &
return implode('&', $pairs);
}
/**
* Uppercases the HTTP method
*/
protected function _getNormalizedHttpMethod()
{
return Horde_String::upper($this->_method);
}
/**
* Parse the url and rebuilds it to be scheme://host/path
*/
protected function _getNormalizedUrl()
{
$parts = parse_url($this->_url);
$scheme = $parts['scheme'];
$port = !empty($parts['port'])
? $parts['port']
: $scheme == 'https' ? '443' : '80';
$host = $parts['host'];
$path = !empty($parts['path']) ? $parts['path'] : '';
if (($scheme == 'https' && $port != '443') ||
($scheme == 'http' && $port != '80')) {
$host = "$host:$port";
}
return "$scheme://$host$path";
}
}
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