/**
* Get the canonicalized query/parameter string for a request
*
* @param RequestInterface $request Request used to build canonicalized string
*
* @return string
*/
private function getCanonicalizedParameterString(RequestInterface $request)
{
if ($request->getMethod() == 'POST') {
$params = $request->getPostFields()->toArray();
} else {
$params = $request->getQuery()->toArray();
}
// Don't resign a previous signature value
unset($params['Signature']);
uksort($params, 'strcmp');
$str = '';
foreach ($params as $key => $val) {
$str .= rawurlencode($key) . '=' . rawurlencode($val) . '&';
}
return substr($str, 0, -1);
}
/**
* Get all of the parameters required to sign a request including:
* * The oauth params
* * The request GET params
* * The params passed in the POST body (with a content-type of application/x-www-form-urlencoded)
*
* @param RequestInterface $request Request to generate a signature for
* @param integer $timestamp Timestamp to use for nonce
* @param string $nonce
*
* @return array
*/
public function getParamsToSign(RequestInterface $request, $timestamp, $nonce)
{
$params = $this->getOauthParams($timestamp, $nonce);
// Add query string parameters
$params->merge($request->getQuery());
// Add POST fields to signing string if required
if ($this->shouldPostFieldsBeSigned($request)) {
$params->merge($request->getPostFields());
}
// Sort params
$params = $params->toArray();
uksort($params, 'strcmp');
return $params;
}
private function moveHeadersToQuery(RequestInterface $request)
{
$query = $request->getQuery();
foreach ($request->getHeaders() as $name => $header) {
if (substr($name, 0, 5) == 'x-amz') {
$query[$header->getName()] = (string) $header;
}
if ($name !== 'host') {
$request->removeHeader($name);
}
}
}
public function visit(CommandInterface $command, RequestInterface $request, Parameter $param, $value)
{
$request->getQuery()->set($param->getWireName(), $this->prepareValue($value, $param));
}
protected function visit_query(RequestInterface $request, $value, $flags)
{
if (!is_array($value)) {
throw new InvalidArgumentException('query value must be an array');
}
if ($flags & self::OPTIONS_AS_DEFAULTS) {
// Merge query string values in but do not overwrite existing values
$query = $request->getQuery();
$query->overwriteWith(array_diff_key($value, $query->toArray()));
} else {
$request->getQuery()->overwriteWith($value);
}
}
