ServerRequestCreator::fromGlobals() - Code Metrics - Inspection of "Added support for numeric headers (#36)" - Nyholm/psr7-server - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( e6a526...60dcbc )

by Tobias

created 2020-06-06 08:03 UTC

ServerRequestCreator::fromGlobals() A

↳ Parent: ServerRequestCreator

Complexity

Conditions	4
Paths	4

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	20

Importance

Changes

Metric	Value
dl	0
loc	11
ccs	0
cts	6
cp	0
rs	9.9
c	0
b	0
f	0
cc	4
nc	4
nop	0
crap	20

<?php

declare(strict_types=1);

namespace Nyholm\Psr7Server;

use Psr\Http\Message\ServerRequestFactoryInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Message\StreamFactoryInterface;
use Psr\Http\Message\StreamInterface;
use Psr\Http\Message\UploadedFileFactoryInterface;
use Psr\Http\Message\UploadedFileInterface;
use Psr\Http\Message\UriFactoryInterface;
use Psr\Http\Message\UriInterface;

/**
 * @author Tobias Nyholm <[email protected]>
 * @author Martijn van der Ven <[email protected]>
 */
final class ServerRequestCreator implements ServerRequestCreatorInterface
{
    private $serverRequestFactory;

    private $uriFactory;

    private $uploadedFileFactory;

    private $streamFactory;

    public function __construct(
        ServerRequestFactoryInterface $serverRequestFactory,
        UriFactoryInterface $uriFactory,
        UploadedFileFactoryInterface $uploadedFileFactory,
        StreamFactoryInterface $streamFactory
    ) {
        $this->serverRequestFactory = $serverRequestFactory;
        $this->uriFactory = $uriFactory;
        $this->uploadedFileFactory = $uploadedFileFactory;
        $this->streamFactory = $streamFactory;
    }

    /**
     * {@inheritdoc}
     */
    public function fromGlobals(): ServerRequestInterface
    {
        $server = $_SERVER;
        if (false === isset($server['REQUEST_METHOD'])) {
            $server['REQUEST_METHOD'] = 'GET';
        }

        $headers = \function_exists('getallheaders') ? getallheaders() : static::getHeadersFromServer($_SERVER);

        return $this->fromArrays($server, $headers, $_COOKIE, $_GET, $_POST, $_FILES, \fopen('php://input', 'r') ?: null);
    }

    /**
     * {@inheritdoc}
     */
    public function fromArrays(array $server, array $headers = [], array $cookie = [], array $get = [], array $post = [], array $files = [], $body = null): ServerRequestInterface
    {
        $method = $this->getMethodFromEnv($server);
        $uri = $this->getUriFromEnvWithHTTP($server);
        $protocol = isset($server['SERVER_PROTOCOL']) ? \str_replace('HTTP/', '', $server['SERVER_PROTOCOL']) : '1.1';

        $serverRequest = $this->serverRequestFactory->createServerRequest($method, $uri, $server);
        foreach ($headers as $name => $value) {
            // Because PHP automatically casts array keys set with numeric strings to integers, we have to make sure
            // that numeric headers will not be sent along as integers, as withAddedHeader can only accept strings.
            if (\is_int($name)) {
                $name = (string) $name;
            }
            $serverRequest = $serverRequest->withAddedHeader($name, $value);
        }

        $serverRequest = $serverRequest
            ->withProtocolVersion($protocol)
            ->withCookieParams($cookie)
            ->withQueryParams($get)
            ->withParsedBody($post)
            ->withUploadedFiles($this->normalizeFiles($files));

        if (null === $body) {
            return $serverRequest;
        }

        if (\is_resource($body)) {
            $body = $this->streamFactory->createStreamFromResource($body);
        } elseif (\is_string($body)) {
            $body = $this->streamFactory->createStream($body);
        } elseif (!$body instanceof StreamInterface) {
            throw new \InvalidArgumentException('The $body parameter to ServerRequestCreator::fromArrays must be string, resource or StreamInterface');
        }

        return $serverRequest->withBody($body);
    }

    /**
     * Implementation from Zend\Diactoros\marshalHeadersFromSapi().
     */
    public static function getHeadersFromServer(array $server): array
    {
        $headers = [];
        foreach ($server as $key => $value) {
            // Apache prefixes environment variables with REDIRECT_
            // if they are added by rewrite rules
            if (0 === \strpos($key, 'REDIRECT_')) {
                $key = \substr($key, 9);

                // We will not overwrite existing variables with the
                // prefixed versions, though
                if (\array_key_exists($key, $server)) {
                    continue;
                }
            }

            if ($value && 0 === \strpos($key, 'HTTP_')) {
                $name = \strtr(\strtolower(\substr($key, 5)), '_', '-');
                $headers[$name] = $value;

                continue;
            }

            if ($value && 0 === \strpos($key, 'CONTENT_')) {
                $name = 'content-'.\strtolower(\substr($key, 8));
                $headers[$name] = $value;

                continue;
            }
        }

        return $headers;
    }

    private function getMethodFromEnv(array $environment): string
    {
        if (false === isset($environment['REQUEST_METHOD'])) {
            throw new \InvalidArgumentException('Cannot determine HTTP method');
        }

        return $environment['REQUEST_METHOD'];
    }

    private function getUriFromEnvWithHTTP(array $environment): UriInterface
    {
        $uri = $this->createUriFromArray($environment);
        if (empty($uri->getScheme())) {
            $uri = $uri->withScheme('http');
        }

        return $uri;
    }

    /**
     * Return an UploadedFile instance array.
     *
     * @param array $files A array which respect $_FILES structure
     *
     * @return UploadedFileInterface[]
     *
     * @throws \InvalidArgumentException for unrecognized values
     */
    private function normalizeFiles(array $files): array
    {
        $normalized = [];

        foreach ($files as $key => $value) {
            if ($value instanceof UploadedFileInterface) {
                $normalized[$key] = $value;
            } elseif (\is_array($value) && isset($value['tmp_name'])) {
                $normalized[$key] = $this->createUploadedFileFromSpec($value);
            } elseif (\is_array($value)) {
                $normalized[$key] = $this->normalizeFiles($value);
            } else {
                throw new \InvalidArgumentException('Invalid value in files specification');
            }
        }

        return $normalized;
    }

    /**
     * Create and return an UploadedFile instance from a $_FILES specification.
     *
     * If the specification represents an array of values, this method will
     * delegate to normalizeNestedFileSpec() and return that return value.
     *
     * @param array $value $_FILES struct
     *
     * @return array|UploadedFileInterface
     */
    private function createUploadedFileFromSpec(array $value)
    {
        if (\is_array($value['tmp_name'])) {
            return $this->normalizeNestedFileSpec($value);
        }

        try {
            $stream = $this->streamFactory->createStreamFromFile($value['tmp_name']);
        } catch (\RuntimeException $e) {
            $stream = $this->streamFactory->createStream();
        }

        return $this->uploadedFileFactory->createUploadedFile(
            $stream,
            (int) $value['size'],
            (int) $value['error'],
            $value['name'],
            $value['type']
        );
    }

    /**
     * Normalize an array of file specifications.
     *
     * Loops through all nested files and returns a normalized array of
     * UploadedFileInterface instances.
     *
     * @param array $files
     *
     * @return UploadedFileInterface[]
     */
    private function normalizeNestedFileSpec(array $files = []): array
    {
        $normalizedFiles = [];

        foreach (\array_keys($files['tmp_name']) as $key) {
            $spec = [
                'tmp_name' => $files['tmp_name'][$key],
                'size' => $files['size'][$key],
                'error' => $files['error'][$key],
                'name' => $files['name'][$key],
                'type' => $files['type'][$key],
            ];
            $normalizedFiles[$key] = $this->createUploadedFileFromSpec($spec);
        }

        return $normalizedFiles;
    }

    /**
     * Create a new uri from server variable.
     *
     * @param array $server typically $_SERVER or similar structure
     *
     * @return UriInterface
     */
    private function createUriFromArray(array $server): UriInterface
    {
        $uri = $this->uriFactory->createUri('');

        if (isset($server['HTTP_X_FORWARDED_PROTO'])) {
            $uri = $uri->withScheme($server['HTTP_X_FORWARDED_PROTO']);
        } else {
            if (isset($server['REQUEST_SCHEME'])) {
                $uri = $uri->withScheme($server['REQUEST_SCHEME']);
            } elseif (isset($server['HTTPS'])) {
                $uri = $uri->withScheme('on' === $server['HTTPS'] ? 'https' : 'http');
            }

            if (isset($server['SERVER_PORT'])) {
                $uri = $uri->withPort($server['SERVER_PORT']);
            }
        }

        if (isset($server['HTTP_HOST'])) {
            if (1 === \preg_match('/^(.+)\:(\d+)$/', $server['HTTP_HOST'], $matches)) {
                $uri = $uri->withHost($matches[1])->withPort($matches[2]);
            } else {
                $uri = $uri->withHost($server['HTTP_HOST']);
            }
        } elseif (isset($server['SERVER_NAME'])) {
            $uri = $uri->withHost($server['SERVER_NAME']);
        }

        if (isset($server['REQUEST_URI'])) {
            $uri = $uri->withPath(\current(\explode('?', $server['REQUEST_URI'])));
        }

        if (isset($server['QUERY_STRING'])) {
            $uri = $uri->withQuery($server['QUERY_STRING']);
        }

        return $uri;
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace Nyholm\Psr7Server;
6
7		use Psr\Http\Message\ServerRequestFactoryInterface;
8		use Psr\Http\Message\ServerRequestInterface;
9		use Psr\Http\Message\StreamFactoryInterface;
10		use Psr\Http\Message\StreamInterface;
11		use Psr\Http\Message\UploadedFileFactoryInterface;
12		use Psr\Http\Message\UploadedFileInterface;
13		use Psr\Http\Message\UriFactoryInterface;
14		use Psr\Http\Message\UriInterface;
15
16		/**
17		* @author Tobias Nyholm <[email protected]>
18		* @author Martijn van der Ven <[email protected]>
19		*/
20		final class ServerRequestCreator implements ServerRequestCreatorInterface
21		{
22		private $serverRequestFactory;
23
24		private $uriFactory;
25
26		private $uploadedFileFactory;
27
28		private $streamFactory;
29
30	21	public function __construct(
31		ServerRequestFactoryInterface $serverRequestFactory,
32		UriFactoryInterface $uriFactory,
33		UploadedFileFactoryInterface $uploadedFileFactory,
34		StreamFactoryInterface $streamFactory
35		) {
36	21	$this->serverRequestFactory = $serverRequestFactory;
37	21	$this->uriFactory = $uriFactory;
38	21	$this->uploadedFileFactory = $uploadedFileFactory;
39	21	$this->streamFactory = $streamFactory;
40	21	}
41
42		/**
43		* {@inheritdoc}
44		*/
45		public function fromGlobals(): ServerRequestInterface
46		{
47		$server = $_SERVER;
48		if (false === isset($server['REQUEST_METHOD'])) {
49		$server['REQUEST_METHOD'] = 'GET';
50		}
51
52		$headers = \function_exists('getallheaders') ? getallheaders() : static::getHeadersFromServer($_SERVER);
53
54		return $this->fromArrays($server, $headers, $_COOKIE, $_GET, $_POST, $_FILES, \fopen('php://input', 'r') ?: null);
55		}
56
57		/**
58		* {@inheritdoc}
59		*/
60	8	public function fromArrays(array $server, array $headers = [], array $cookie = [], array $get = [], array $post = [], array $files = [], $body = null): ServerRequestInterface
61		{
62	8	$method = $this->getMethodFromEnv($server);
63	8	$uri = $this->getUriFromEnvWithHTTP($server);
64	8	$protocol = isset($server['SERVER_PROTOCOL']) ? \str_replace('HTTP/', '', $server['SERVER_PROTOCOL']) : '1.1';
65
66	8	$serverRequest = $this->serverRequestFactory->createServerRequest($method, $uri, $server);
67	8	foreach ($headers as $name => $value) {
68		// Because PHP automatically casts array keys set with numeric strings to integers, we have to make sure
69		// that numeric headers will not be sent along as integers, as withAddedHeader can only accept strings.
70	1	if (\is_int($name)) {
71	1	$name = (string) $name;
72		}
73	1	$serverRequest = $serverRequest->withAddedHeader($name, $value);
74		}
75
76		$serverRequest = $serverRequest
77	8	->withProtocolVersion($protocol)
78	8	->withCookieParams($cookie)
79	8	->withQueryParams($get)
80	8	->withParsedBody($post)
81	8	->withUploadedFiles($this->normalizeFiles($files));
82
83	7	if (null === $body) {
84	6	return $serverRequest;
85		}
86
87	1	if (\is_resource($body)) {
88		$body = $this->streamFactory->createStreamFromResource($body);
89	1	} elseif (\is_string($body)) {
90	1	$body = $this->streamFactory->createStream($body);
91		} elseif (!$body instanceof StreamInterface) {
92		throw new \InvalidArgumentException('The $body parameter to ServerRequestCreator::fromArrays must be string, resource or StreamInterface');
93		}
94
95	1	return $serverRequest->withBody($body);
96		}
97
98		/**
99		* Implementation from Zend\Diactoros\marshalHeadersFromSapi().
100		*/
101	2	public static function getHeadersFromServer(array $server): array
102		{
103	2	$headers = [];
104	2	foreach ($server as $key => $value) {
105		// Apache prefixes environment variables with REDIRECT_
106		// if they are added by rewrite rules
107	2	if (0 === \strpos($key, 'REDIRECT_')) {
108	1	$key = \substr($key, 9);
109
110		// We will not overwrite existing variables with the
111		// prefixed versions, though
112	1	if (\array_key_exists($key, $server)) {
113	1	continue;
114		}
115		}
116
117	2	if ($value && 0 === \strpos($key, 'HTTP_')) {
118	2	$name = \strtr(\strtolower(\substr($key, 5)), '_', '-');
119	2	$headers[$name] = $value;
120
121	2	continue;
122		}
123
124	1	if ($value && 0 === \strpos($key, 'CONTENT_')) {
125	1	$name = 'content-'.\strtolower(\substr($key, 8));
126	1	$headers[$name] = $value;
127
128	1	continue;
129		}
130		}
131
132	2	return $headers;
133		}
134
135	8	private function getMethodFromEnv(array $environment): string
136		{
137	8	if (false === isset($environment['REQUEST_METHOD'])) {
138		throw new \InvalidArgumentException('Cannot determine HTTP method');
139		}
140
141	8	return $environment['REQUEST_METHOD'];
142		}
143
144	8	private function getUriFromEnvWithHTTP(array $environment): UriInterface
145		{
146	8	$uri = $this->createUriFromArray($environment);
147	8	if (empty($uri->getScheme())) {
148	7	$uri = $uri->withScheme('http');
149		}
150
151	8	return $uri;
152		}
153
154		/**
155		* Return an UploadedFile instance array.
156		*
157		* @param array $files A array which respect $_FILES structure
158		*
159		* @return UploadedFileInterface[]
160		*
161		* @throws \InvalidArgumentException for unrecognized values
162		*/
163	8	private function normalizeFiles(array $files): array
164		{
165	8	$normalized = [];
166
167	8	foreach ($files as $key => $value) {
168	7	if ($value instanceof UploadedFileInterface) {
169	2	$normalized[$key] = $value;
170	6	} elseif (\is_array($value) && isset($value['tmp_name'])) {
171	4	$normalized[$key] = $this->createUploadedFileFromSpec($value);
172	2	} elseif (\is_array($value)) {
173	1	$normalized[$key] = $this->normalizeFiles($value);
174		} else {
175	7	throw new \InvalidArgumentException('Invalid value in files specification');
176		}
177		}
178
179	7	return $normalized;
180		}
181
182		/**
183		* Create and return an UploadedFile instance from a $_FILES specification.
184		*
185		* If the specification represents an array of values, this method will
186		* delegate to normalizeNestedFileSpec() and return that return value.
187		*
188		* @param array $value $_FILES struct
189		*
190		* @return array\|UploadedFileInterface
191		*/
192	5	private function createUploadedFileFromSpec(array $value)
193		{
194	5	if (\is_array($value['tmp_name'])) {
195	1	return $this->normalizeNestedFileSpec($value);
196		}
197
198		try {
199	5	$stream = $this->streamFactory->createStreamFromFile($value['tmp_name']);
200	1	} catch (\RuntimeException $e) {
201	1	$stream = $this->streamFactory->createStream();
202		}
203
204	5	return $this->uploadedFileFactory->createUploadedFile(
205	5	$stream,
206	5	(int) $value['size'],
207	5	(int) $value['error'],
208	5	$value['name'],
209	5	$value['type']
210		);
211		}
212
213		/**
214		* Normalize an array of file specifications.
215		*
216		* Loops through all nested files and returns a normalized array of
217		* UploadedFileInterface instances.
218		*
219		* @param array $files
220		*
221		* @return UploadedFileInterface[]
222		*/
223	1	private function normalizeNestedFileSpec(array $files = []): array
224		{
225	1	$normalizedFiles = [];
226
227	1	foreach (\array_keys($files['tmp_name']) as $key) {
228		$spec = [
229	1	'tmp_name' => $files['tmp_name'][$key],
230	1	'size' => $files['size'][$key],
231	1	'error' => $files['error'][$key],
232	1	'name' => $files['name'][$key],
233	1	'type' => $files['type'][$key],
234		];
235	1	$normalizedFiles[$key] = $this->createUploadedFileFromSpec($spec);
236		}
237
238	1	return $normalizedFiles;
239		}
240
241		/**
242		* Create a new uri from server variable.
243		*
244		* @param array $server typically $_SERVER or similar structure
245		*
246		* @return UriInterface
247		*/
248	18	private function createUriFromArray(array $server): UriInterface
249		{
250	18	$uri = $this->uriFactory->createUri('');
251
252	18	if (isset($server['HTTP_X_FORWARDED_PROTO'])) {
253	1	$uri = $uri->withScheme($server['HTTP_X_FORWARDED_PROTO']);
254		} else {
255	17	if (isset($server['REQUEST_SCHEME'])) {
256		$uri = $uri->withScheme($server['REQUEST_SCHEME']);
257	17	} elseif (isset($server['HTTPS'])) {
258	9	$uri = $uri->withScheme('on' === $server['HTTPS'] ? 'https' : 'http');
259		}
260
261	17	if (isset($server['SERVER_PORT'])) {
262	9	$uri = $uri->withPort($server['SERVER_PORT']);
263		}
264		}
265
266	18	if (isset($server['HTTP_HOST'])) {
267	9	if (1 === \preg_match('/^(.+)\:(\d+)$/', $server['HTTP_HOST'], $matches)) {
268	3	$uri = $uri->withHost($matches[1])->withPort($matches[2]);
269		} else {
270	9	$uri = $uri->withHost($server['HTTP_HOST']);
271		}
272	9	} elseif (isset($server['SERVER_NAME'])) {
273	1	$uri = $uri->withHost($server['SERVER_NAME']);
274		}
275
276	18	if (isset($server['REQUEST_URI'])) {
277	10	$uri = $uri->withPath(\current(\explode('?', $server['REQUEST_URI'])));
278		}
279
280	18	if (isset($server['QUERY_STRING'])) {
281	10	$uri = $uri->withQuery($server['QUERY_STRING']);
282		}
283
284	18	return $uri;
285		}
286		}
287

Nyholm / psr7-server

Push — master ( e6a526...60dcbc )

ServerRequestCreator::fromGlobals() A

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