SapiEmitter::emit() - Code Metrics - Inspection of "Remove EmitterInterface since emitter is now used..." - yiisoft/yii-web - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — master ( c2ea24...6d36db )

by Alexander

created 2020-02-28 19:39 UTC

SapiEmitter::emit() B

↳ Parent: SapiEmitter

Complexity

Conditions	11
Paths	100

Size

Total Lines	44
Code Lines	28

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	11
eloc	28
nc	100
nop	2
dl	0
loc	44
rs	7.3166
c	0
b	0
f	0

How to fix Complexity

<?php

declare(strict_types=1);

namespace Yiisoft\Yii\Web;

use Psr\Http\Message\ResponseInterface;
use Yiisoft\Http\Status;
use Yiisoft\Yii\Web\Exception\HeadersHaveBeenSentException;

/**
 * SapiEmitter sends a response using PHP Server API
 */
final class SapiEmitter
{
    private const NO_BODY_RESPONSE_CODES = [
        Status::CONTINUE,
        Status::SWITCHING_PROTOCOLS,
        Status::PROCESSING,
        Status::NO_CONTENT,
        Status::RESET_CONTENT,
        Status::NOT_MODIFIED
    ];

    private const DEFAULT_BUFFER_SIZE = 8_388_608; // 8MB


    private int $bufferSize;

    public function __construct(?int $bufferSize = null)
    {
        if ($bufferSize !== null && $bufferSize <= 0) {
            throw new \InvalidArgumentException('Buffer size must be greater than zero');
        }
        $this->bufferSize = $bufferSize ?? self::DEFAULT_BUFFER_SIZE;
    }

    public function emit(ResponseInterface $response, bool $withoutBody = false): bool
    {
        $status = $response->getStatusCode();
        $withoutBody = $withoutBody || !$this->shouldOutputBody($response);
        $withoutContentLength = $withoutBody || $response->hasHeader('Transfer-Encoding');

        // we can't send headers if they are already sent
        if (headers_sent()) {
            throw new HeadersHaveBeenSentException();
        }
        header_remove();
        // send HTTP Status-Line
        header(sprintf(
            'HTTP/%s %d %s',
            $response->getProtocolVersion(),
            $status,
            $response->getReasonPhrase()
        ), true, $status);
        // filter headers
        $headers = $withoutContentLength
            ? $response->withoutHeader('Content-Length')
                       ->getHeaders()
            : $response->getHeaders();
        // send headers
        foreach ($headers as $header => $values) {
            $replaceFirst = strtolower($header) !== 'set-cookie';
            foreach ($values as $value) {
                header(sprintf('%s: %s', $header, $value), $replaceFirst);
                $replaceFirst = false;
            }
        }

        if (!$withoutBody) {
            if (!$withoutContentLength && !$response->hasHeader('Content-Length')) {
                $contentLength = $response->getBody()->getSize();
                if ($contentLength !== null) {
                    header('Content-Length: ' . $contentLength, true);
                }
            }

            $this->emitBody($response);
        }

        return true;
    }

    private function emitBody(ResponseInterface $response): void
    {
        $body = $response->getBody();
        if ($body->isSeekable()) {
            $body->rewind();
        }
        while (!$body->eof()) {
            echo $body->read($this->bufferSize);
            \flush();
        }
    }

    private function shouldOutputBody(ResponseInterface $response): bool
    {
        if (\in_array($response->getStatusCode(), self::NO_BODY_RESPONSE_CODES, true)) {
            return false;
        }
        // check if body is empty
        $body = $response->getBody();
        $size = $body->getSize();
        if ($size !== null) {
            return $size > 0;
        }
        if ($body->isSeekable()) {
            $body->rewind();
            $byte = $body->read(1);
            if ($byte === '' || $body->eof()) {
                return false;
            }
        }
        return true;
    }
}


1			<?php
2
3			declare(strict_types=1);
4
5			namespace Yiisoft\Yii\Web;
6
7			use Psr\Http\Message\ResponseInterface;
8			use Yiisoft\Http\Status;
9			use Yiisoft\Yii\Web\Exception\HeadersHaveBeenSentException;
10
11			/**
12			* SapiEmitter sends a response using PHP Server API
13			*/
14			final class SapiEmitter
15			{
16			private const NO_BODY_RESPONSE_CODES = [
17			Status::CONTINUE,
18			Status::SWITCHING_PROTOCOLS,
19			Status::PROCESSING,
20			Status::NO_CONTENT,
21			Status::RESET_CONTENT,
22			Status::NOT_MODIFIED
23			];
24
25			private const DEFAULT_BUFFER_SIZE = 8_388_608; // 8MB
			0 ignored issues – show Bug introduced 2020-02-28 19:41 UTC by Report Bug Copy Issue Report The constant `Yiisoft\Yii\Web\8_388_608` was not found. Maybe you did not declare it correctly or list all dependencies? Loading history...
26
27			private int $bufferSize;
28
29			public function __construct(?int $bufferSize = null)
30			{
31			if ($bufferSize !== null && $bufferSize <= 0) {
32			throw new \InvalidArgumentException('Buffer size must be greater than zero');
33			}
34			$this->bufferSize = $bufferSize ?? self::DEFAULT_BUFFER_SIZE;
35			}
36
37			public function emit(ResponseInterface $response, bool $withoutBody = false): bool
38			{
39			$status = $response->getStatusCode();
40			$withoutBody = $withoutBody \|\| !$this->shouldOutputBody($response);
41			$withoutContentLength = $withoutBody \|\| $response->hasHeader('Transfer-Encoding');
42
43			// we can't send headers if they are already sent
44			if (headers_sent()) {
45			throw new HeadersHaveBeenSentException();
46			}
47			header_remove();
48			// send HTTP Status-Line
49			header(sprintf(
50			'HTTP/%s %d %s',
51			$response->getProtocolVersion(),
52			$status,
53			$response->getReasonPhrase()
54			), true, $status);
55			// filter headers
56			$headers = $withoutContentLength
57			? $response->withoutHeader('Content-Length')
58			->getHeaders()
59			: $response->getHeaders();
60			// send headers
61			foreach ($headers as $header => $values) {
62			$replaceFirst = strtolower($header) !== 'set-cookie';
63			foreach ($values as $value) {
64			header(sprintf('%s: %s', $header, $value), $replaceFirst);
65			$replaceFirst = false;
66			}
67			}
68
69			if (!$withoutBody) {
70			if (!$withoutContentLength && !$response->hasHeader('Content-Length')) {
71			$contentLength = $response->getBody()->getSize();
72			if ($contentLength !== null) {
73			header('Content-Length: ' . $contentLength, true);
74			}
75			}
76
77			$this->emitBody($response);
78			}
79
80			return true;
81			}
82
83			private function emitBody(ResponseInterface $response): void
84			{
85			$body = $response->getBody();
86			if ($body->isSeekable()) {
87			$body->rewind();
88			}
89			while (!$body->eof()) {
90			echo $body->read($this->bufferSize);
91			\flush();
92			}
93			}
94
95			private function shouldOutputBody(ResponseInterface $response): bool
96			{
97			if (\in_array($response->getStatusCode(), self::NO_BODY_RESPONSE_CODES, true)) {
98			return false;
99			}
100			// check if body is empty
101			$body = $response->getBody();
102			$size = $body->getSize();
103			if ($size !== null) {
104			return $size > 0;
105			}
106			if ($body->isSeekable()) {
107			$body->rewind();
108			$byte = $body->read(1);
109			if ($byte === '' \|\| $body->eof()) {
110			return false;
111			}
112			}
113			return true;
114			}
115			}
116

yiisoft / yii-web

Push — master ( c2ea24...6d36db )

SapiEmitter::emit() B

Complexity

Size

Duplication

Importance

How to fix Complexity

Long Method

Duplication Side-by-Side

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