FinishMiddleware::isJsonResponse() - Code Metrics - Inspection of "Merge branch 'master' into 0.1" - ochi51/cybozu-http - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — 0.1 ( 1296ef...144915 )

by Yuichi

created 2019-01-22 06:04 UTC

FinishMiddleware::isJsonResponse() A

↳ Parent: FinishMiddleware

Complexity

Conditions	4
Paths	8

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	7
rs	10
c	0
b	0
f	0
cc	4
nc	8
nop	1

<?php

namespace CybozuHttp\Middleware;

use GuzzleHttp\Exception\ClientException;
use GuzzleHttp\Exception\RequestException;
use GuzzleHttp\Exception\ServerException;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;

/**
 * @author ochi51 <[email protected]>
 */
class FinishMiddleware
{

    /**
     * Called when the middleware is handled by the client.
     *
     * @param callable $handler
     *
     * @return \Closure
     * @throws RequestException
     * @throws \InvalidArgumentException
     */
    public function __invoke(callable $handler)
    {
        return function ($request, array $options) use ($handler) {

            return $handler($request, $options)->then(
                $this->onFulfilled($request),
                $this->onRejected($request)
            );
        };
    }

    /**
     * @param RequestInterface $request
     * @return \Closure
     * @throws \InvalidArgumentException
     */
    private function onFulfilled(RequestInterface $request): callable

    {
        return function (ResponseInterface $response) {
            if (self::isJsonResponse($response)) {
                return $response->withBody(new JsonStream($response->getBody()));
            }
            return $response;
        };
    }

    /**
     * @param RequestInterface $request
     * @return \Closure
     * @throws RequestException
     */
    private function onRejected(RequestInterface $request): callable
    {
        return function ($reason) use ($request) {
            if (!($reason instanceof RequestException)) {
                return $reason;
            }
            $response = $reason->getResponse();
            if ($response === null || $response->getStatusCode() < 300) {
                return $reason;
            }
            if (self::isJsonResponse($response)) {
                self::jsonError($request, $response);
            } else {
                self::domError($request, $response);
            }

            return $reason;
        };
    }

    /**
     * @param ResponseInterface $response
     * @return bool
     */
    private static function isJsonResponse(ResponseInterface $response): bool
    {
        $contentType = $response->getHeader('Content-Type');
        $contentType = is_array($contentType) && isset($contentType[0]) ? $contentType[0] : $contentType;

        return is_string($contentType) && strpos($contentType, 'application/json') === 0;
    }


    /**
     * @param RequestInterface $request
     * @param ResponseInterface $response
     * @throws RequestException
     */
    private static function domError(RequestInterface $request, ResponseInterface $response): void
    {
        $body = (string)$response->getBody()->getContents();
        $dom = new \DOMDocument('1.0', 'UTF-8');
        $dom->preserveWhiteSpace = false;
        $dom->formatOutput = true;
        $dom->loadHTML($body);
        if ($dom->loadHTML($body)) {
            $title = $dom->getElementsByTagName('title');
            if (is_object($title)) {
                $title = $title->item(0)->nodeValue;
            }
            if ($title === 'Error') {
                $message = $dom->getElementsByTagName('h3')->item(0)->nodeValue;
                throw self::createException($message, $request, $response);
            }
            if ($title === 'Unauthorized') {
                $message = $dom->getElementsByTagName('h2')->item(0)->nodeValue;
                throw self::createException($message, $request, $response);
            }

            throw self::createException('Invalid auth.', $request, $response);
        }
    }

    /**
     * @param RequestInterface $request
     * @param ResponseInterface $response
     * @throws RequestException
     */
    private static function jsonError(RequestInterface $request, ResponseInterface $response): void
    {
        try {
            $body = (string)$response->getBody();
            $json = \GuzzleHttp\json_decode($body, true);
        } catch (\InvalidArgumentException $e) {
            return;
        } catch (\RuntimeException $e) {
            return;
        }

        $message = $json['message'];
        if (isset($json['errors']) && is_array($json['errors'])) {
            $message .= self::addErrorMessages($json['errors']);
        }

        throw self::createException($message, $request, $response);
    }

    /**
     * @param array $errors
     * @return string
     */
    private static function addErrorMessages(array $errors): string
    {
        $message = ' (';
        foreach ($errors as $k => $err) {
            $message .= $k . ' : ';
            if (is_array($err['messages'])) {
                foreach ($err['messages'] as $m) {
                    $message .= $m . ' ';
                }
            } else {
                $message .= $err['messages'];
            }
        }
        $message .= ' )';

        return $message;
    }

    /**
     * @param string $message
     * @param RequestInterface $request
     * @param ResponseInterface|null $response
     * @return RequestException
     */
    private static function createException($message, RequestInterface $request, ResponseInterface $response): RequestException
    {
        $level = (int) floor($response->getStatusCode() / 100);
        $className = RequestException::class;

        if ($level === 4) {
            $className = ClientException::class;
        } elseif ($level === 5) {
            $className = ServerException::class;
        }

        return new $className($message, $request, $response);
    }
}


1			<?php
2
3			namespace CybozuHttp\Middleware;
4
5			use GuzzleHttp\Exception\ClientException;
6			use GuzzleHttp\Exception\RequestException;
7			use GuzzleHttp\Exception\ServerException;
8			use Psr\Http\Message\RequestInterface;
9			use Psr\Http\Message\ResponseInterface;
10
11			/**
12			* @author ochi51 <[email protected]>
13			*/
14			class FinishMiddleware
15			{
16
17			/**
18			* Called when the middleware is handled by the client.
19			*
20			* @param callable $handler
21			*
22			* @return \Closure
23			* @throws RequestException
24			* @throws \InvalidArgumentException
25			*/
26			public function __invoke(callable $handler)
27			{
28			return function ($request, array $options) use ($handler) {
29
30			return $handler($request, $options)->then(
31			$this->onFulfilled($request),
32			$this->onRejected($request)
33			);
34			};
35			}
36
37			/**
38			* @param RequestInterface $request
39			* @return \Closure
40			* @throws \InvalidArgumentException
41			*/
42			private function onFulfilled(RequestInterface $request): callable
			0 ignored issues – show Unused Code introduced 2019-01-17 09:11 UTC by Report Bug Copy Issue Report The parameter `$request` is not used and could be removed. This check looks from parameters that have been defined for a function or method, but which are not used in the method body. Loading history...
43			{
44			return function (ResponseInterface $response) {
45			if (self::isJsonResponse($response)) {
46			return $response->withBody(new JsonStream($response->getBody()));
47			}
48			return $response;
49			};
50			}
51
52			/**
53			* @param RequestInterface $request
54			* @return \Closure
55			* @throws RequestException
56			*/
57			private function onRejected(RequestInterface $request): callable
58			{
59			return function ($reason) use ($request) {
60			if (!($reason instanceof RequestException)) {
61			return $reason;
62			}
63			$response = $reason->getResponse();
64			if ($response === null \|\| $response->getStatusCode() < 300) {
65			return $reason;
66			}
67			if (self::isJsonResponse($response)) {
68			self::jsonError($request, $response);
69			} else {
70			self::domError($request, $response);
71			}
72
73			return $reason;
74			};
75			}
76
77			/**
78			* @param ResponseInterface $response
79			* @return bool
80			*/
81			private static function isJsonResponse(ResponseInterface $response): bool
82			{
83			$contentType = $response->getHeader('Content-Type');
84			$contentType = is_array($contentType) && isset($contentType[0]) ? $contentType[0] : $contentType;
85
86			return is_string($contentType) && strpos($contentType, 'application/json') === 0;
87			}
88
89
90			/**
91			* @param RequestInterface $request
92			* @param ResponseInterface $response
93			* @throws RequestException
94			*/
95			private static function domError(RequestInterface $request, ResponseInterface $response): void
96			{
97			$body = (string)$response->getBody()->getContents();
98			$dom = new \DOMDocument('1.0', 'UTF-8');
99			$dom->preserveWhiteSpace = false;
100			$dom->formatOutput = true;
101			$dom->loadHTML($body);
102			if ($dom->loadHTML($body)) {
103			$title = $dom->getElementsByTagName('title');
104			if (is_object($title)) {
105			$title = $title->item(0)->nodeValue;
106			}
107			if ($title === 'Error') {
108			$message = $dom->getElementsByTagName('h3')->item(0)->nodeValue;
109			throw self::createException($message, $request, $response);
110			}
111			if ($title === 'Unauthorized') {
112			$message = $dom->getElementsByTagName('h2')->item(0)->nodeValue;
113			throw self::createException($message, $request, $response);
114			}
115
116			throw self::createException('Invalid auth.', $request, $response);
117			}
118			}
119
120			/**
121			* @param RequestInterface $request
122			* @param ResponseInterface $response
123			* @throws RequestException
124			*/
125			private static function jsonError(RequestInterface $request, ResponseInterface $response): void
126			{
127			try {
128			$body = (string)$response->getBody();
129			$json = \GuzzleHttp\json_decode($body, true);
130			} catch (\InvalidArgumentException $e) {
131			return;
132			} catch (\RuntimeException $e) {
133			return;
134			}
135
136			$message = $json['message'];
137			if (isset($json['errors']) && is_array($json['errors'])) {
138			$message .= self::addErrorMessages($json['errors']);
139			}
140
141			throw self::createException($message, $request, $response);
142			}
143
144			/**
145			* @param array $errors
146			* @return string
147			*/
148			private static function addErrorMessages(array $errors): string
149			{
150			$message = ' (';
151			foreach ($errors as $k => $err) {
152			$message .= $k . ' : ';
153			if (is_array($err['messages'])) {
154			foreach ($err['messages'] as $m) {
155			$message .= $m . ' ';
156			}
157			} else {
158			$message .= $err['messages'];
159			}
160			}
161			$message .= ' )';
162
163			return $message;
164			}
165
166			/**
167			* @param string $message
168			* @param RequestInterface $request
169			* @param ResponseInterface\|null $response
170			* @return RequestException
171			*/
172			private static function createException($message, RequestInterface $request, ResponseInterface $response): RequestException
173			{
174			$level = (int) floor($response->getStatusCode() / 100);
175			$className = RequestException::class;
176
177			if ($level === 4) {
178			$className = ClientException::class;
179			} elseif ($level === 5) {
180			$className = ServerException::class;
181			}
182
183			return new $className($message, $request, $response);
184			}
185			}
186

ochi51 / cybozu-http

Push — 0.1 ( 1296ef...144915 )

FinishMiddleware::isJsonResponse() A

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