113 lines
		
	
	
		
			3.7 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			113 lines
		
	
	
		
			3.7 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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namespace Qcloud\Cos;
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use Psr\Http\Message\RequestInterface;
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use Psr\Http\Message\ResponseInterface;
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/**
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 * Parses default XML exception responses
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 */
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class ExceptionParser {
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    public function parse(RequestInterface $request, ResponseInterface $response) {
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        $data = array(
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            'code'       => null,
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            'message'    => null,
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            //'type'       => $response->isClientError() ? 'client' : 'server',
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            'type'       => 'client',
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            'request_id' => null,
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            'parsed'     => null
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        );
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		$body = strval($response->getBody());
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        if (empty($body)) {
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            $this->parseHeaders($request, $response, $data);
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            return $data;
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        }
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        try {
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            $xml = new \SimpleXMLElement(utf8_encode($body));
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            $this->parseBody($xml, $data);
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            return $data;
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        } catch (\Exception $e) {
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            $data['code'] = 'PhpInternalXmlParseError';
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            $data['message'] = 'A non-XML response was received';
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            return $data;
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        }
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    }
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    /**
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     * Parses additional exception information from the response headers
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     *
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     * @param RequestInterface $request  Request that was issued
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     * @param Response         $response The response from the request
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     * @param array            $data     The current set of exception data
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     */
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    protected function parseHeaders(RequestInterface $request, ResponseInterface $response, array &$data) {
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        $data['message'] = $response->getStatusCode() . ' ' . $response->getReasonPhrase();
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        $requestId = $response->getHeader('x-cos-request-id');
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        if (isset($requestId[0])) {
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            $requestId = $requestId[0];
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            $data['request_id'] = $requestId;
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            $data['message'] .= " (Request-ID: $requestId)";
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        }
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        // Get the request
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        $status  = $response->getStatusCode();
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        $method  = $request->getMethod();
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        // Attempt to determine code for 403s and 404s
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        if ($status === 403) {
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            $data['code'] = 'AccessDenied';
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        } elseif ($method === 'HEAD' && $status === 404) {
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            $path   = explode('/', trim($request->getUri()->getPath(), '/'));
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            $host   = explode('.', $request->getUri()->getHost());
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            $bucket = (count($host) >= 4) ? $host[0] : array_shift($path);
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            $object = array_shift($path);
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            if ($bucket && $object) {
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                $data['code'] = 'NoSuchKey';
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            } elseif ($bucket) {
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                $data['code'] = 'NoSuchBucket';
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            }
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        }
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    }
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    /**
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     * Parses additional exception information from the response body
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     *
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     * @param \SimpleXMLElement $body The response body as XML
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     * @param array             $data The current set of exception data
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     */
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    protected function parseBody(\SimpleXMLElement $body, array &$data) {
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        $data['parsed'] = $body;
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        $namespaces = $body->getDocNamespaces();
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        if (isset($namespaces[''])) {
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            // Account for the default namespace being defined and PHP not being able to handle it :(
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            $body->registerXPathNamespace('ns', $namespaces['']);
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            $prefix = 'ns:';
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        } else {
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            $prefix = '';
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        }
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        if ($tempXml = $body->xpath("//{$prefix}Code[1]")) {
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            $data['code'] = (string) $tempXml[0];
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        }
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        if ($tempXml = $body->xpath("//{$prefix}Message[1]")) {
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            $data['message'] = (string) $tempXml[0];
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        }
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        $tempXml = $body->xpath("//{$prefix}RequestId[1]");
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        if (empty($tempXml)) {
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            $tempXml = $body->xpath("//{$prefix}RequestID[1]");
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        }
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        if (isset($tempXml[0])) {
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            $data['request_id'] = (string) $tempXml[0];
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        }
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    }
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}
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