<?php
namespace Aws\Api\ErrorParser;
use Aws\Api\Parser\PayloadParserTrait;
use Psr\Http\Message\ResponseInterface;
/**
* Parses XML errors.
*/
class XmlErrorParser
{
use PayloadParserTrait;
public function __invoke(ResponseInterface $response)
{
$code = (string) $response->getStatusCode();
$data = [
'type' => $code[0] == '4' ? 'client' : 'server',
'request_id' => null,
'code' => null,
'message' => null,
'parsed' => null
];
$body = $response->getBody();
if ($body->getSize() > 0) {
$this->parseBody($this->parseXml($body), $data);
} else {
$this->parseHeaders($response, $data);
}
return $data;
}
private function parseHeaders(ResponseInterface $response, array &$data)
{
if ($response->getStatusCode() == '404') {
$data['code'] = 'NotFound';
}
$data['message'] = $response->getStatusCode() . ' '
. $response->getReasonPhrase();
if ($requestId = $response->getHeaderLine('x-amz-request-id')) {
$data['request_id'] = $requestId;
$data['message'] .= " (Request-ID: $requestId)";
}
}
private function parseBody(\SimpleXMLElement $body, array &$data)
{
$data['parsed'] = $body;
$namespaces = $body->getDocNamespaces();
if (!isset($namespaces[''])) {
$prefix = '';
} else {
// Account for the default namespace being defined and PHP not
// being able to handle it :(.
$body->registerXPathNamespace('ns', $namespaces['']);
$prefix = 'ns:';
}
if ($tempXml = $body->xpath("//{$prefix}Code[1]")) {
$data['code'] = (string) $tempXml[0];
}
if ($tempXml = $body->xpath("//{$prefix}Message[1]")) {
$data['message'] = (string) $tempXml[0];
}
$tempXml = $body->xpath("//{$prefix}RequestId[1]");
if (empty($tempXml)) {
$tempXml = $body->xpath("//{$prefix}RequestID[1]");
}
if (isset($tempXml[0])) {
$data['request_id'] = (string) $tempXml[0];
}
}
}
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