Base64DecodedStream::getSize() - Code Metrics - Inspection of "add mime body decoded stream (#81)" - genkgo/mail - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( cc370f...f8592e )

by Frederik

created 2020-09-18 14:00 UTC

Base64DecodedStream::getSize() A

↳ Parent: Base64DecodedStream

Complexity

Conditions	3
Paths	4

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	12
CRAP Score	3

Importance

Changes

Metric	Value
dl	0
loc	18
ccs	12
cts	12
cp	1
rs	9.6666
c	0
b	0
f	0
cc	3
nc	4
nop	0
crap	3

<?php
declare(strict_types=1);

namespace Genkgo\Mail\Stream;

use Genkgo\Mail\StreamInterface;

final class Base64DecodedStream implements StreamInterface
{
    /**
     * @var StreamInterface
     */
    private $decoratedStream;

    /**
     * @var resource
     */
    private $filter;

    /**
     * @param resource $resource
     */
    public function __construct($resource)
    {
        $this->decoratedStream = new ResourceStream($resource);

        $this->applyFilter();
    }

    /**
     * @param string $string
     * @return Base64DecodedStream
     */
    public static function fromString(string $string): Base64DecodedStream
    {
        $resource = \fopen('php://memory', 'r+');
        if ($resource === false) {
            throw new \UnexpectedValueException('Cannot open php://memory for writing');
        }

        \fwrite($resource, $string);
        return new self($resource);
    }
    
    private function applyFilter(): void
    {
        $filter = \stream_filter_prepend(
            $this->decoratedStream->detach(),
            'convert.base64-decode',
            STREAM_FILTER_READ
        );

        if ($filter === false) {
            throw new \UnexpectedValueException('Cannot append filter to stream');
        }

        $this->filter = $filter;
    }

    private function removeFilter(): void
    {
        if ($this->filter !== null) {
            \stream_filter_remove($this->filter);
        }
    }

    /**
     * @return string
     */
    public function __toString(): string
    {
        $this->rewind();
        return $this->decoratedStream->__toString();
    }
    
    public function close(): void
    {
        $this->decoratedStream->close();
    }

    /**
     * @return mixed
     */
    public function detach()
    {
        return $this->decoratedStream->detach();
    }

    /**
     * @return int|null
     */
    public function getSize(): ?int
    {
        $this->removeFilter();
        $contents = \preg_replace("/\r\n/", '', (string)$this->decoratedStream->getContents());
        $lastCharacters = \substr($contents, -2);
        $this->decoratedStream->rewind();
        $this->applyFilter();

        $padding = 0;
        if ($lastCharacters[0] === '=') {
            $padding++;
        }
        if ($lastCharacters[1] === '=') {
            $padding++;
        }

        return (int) ((\strlen($contents) / 4) * 3) - $padding;
    }

    /**
     * @return int
     * @throws \RuntimeException
     */
    public function tell(): int
    {
        return $this->decoratedStream->tell();
    }

    /**
     * @return bool
     */
    public function eof(): bool
    {
        return $this->decoratedStream->eof();
    }

    /**
     * @return bool
     */
    public function isSeekable(): bool
    {
        return false;
    }

    /**
     * @param int $offset
     * @param int $whence
     * @return int
     */
    public function seek(int $offset, int $whence = SEEK_SET): int
    {
        return -1;
    }

    /**
     * @return bool
     */
    public function rewind(): bool
    {
        $this->removeFilter();
        if (!$this->decoratedStream->rewind()) {
            return false;
        }

        $this->applyFilter();
        return true;
    }

    /**
     * @return bool
     */
    public function isWritable(): bool
    {
        return false;
    }

    /**
     * @param string $string
     * @return int
     */
    public function write($string): int
    {
        throw new \RuntimeException('Cannot write to stream');
    }

    /**
     * @return bool
     */
    public function isReadable(): bool
    {
        return true;
    }

    /**
     * @param int $length
     * @return string
     */
    public function read(int $length): string
    {
        return $this->decoratedStream->read($length);
    }

    /**
     * @return string
     */
    public function getContents(): string
    {
        return $this->decoratedStream->getContents();
    }

    /**
     * @param array<int, string> $keys
     * @return array<string, mixed>

     */
    public function getMetadata(array $keys = []): array
    {
        return $this->decoratedStream->getMetadata();
    }
}


1		<?php
2		declare(strict_types=1);
3
4		namespace Genkgo\Mail\Stream;
5
6		use Genkgo\Mail\StreamInterface;
7
8		final class Base64DecodedStream implements StreamInterface
9		{
10		/**
11		* @var StreamInterface
12		*/
13		private $decoratedStream;
14
15		/**
16		* @var resource
17		*/
18		private $filter;
19
20		/**
21		* @param resource $resource
22		*/
23	13	public function __construct($resource)
24		{
25	13	$this->decoratedStream = new ResourceStream($resource);
26
27	13	$this->applyFilter();
28	13	}
29
30		/**
31		* @param string $string
32		* @return Base64DecodedStream
33		*/
34	13	public static function fromString(string $string): Base64DecodedStream
35		{
36	13	$resource = \fopen('php://memory', 'r+');
37	13	if ($resource === false) {
38		throw new \UnexpectedValueException('Cannot open php://memory for writing');
39		}
40
41	13	\fwrite($resource, $string);
42	13	return new self($resource);
43		}
44
45	13	private function applyFilter(): void
46		{
47	13	$filter = \stream_filter_prepend(
48	13	$this->decoratedStream->detach(),
49	13	'convert.base64-decode',
50	13	STREAM_FILTER_READ
51		);
52
53	13	if ($filter === false) {
54		throw new \UnexpectedValueException('Cannot append filter to stream');
55		}
56
57	13	$this->filter = $filter;
58	13	}
59
60	7	private function removeFilter(): void
61		{
62	7	if ($this->filter !== null) {
63	7	\stream_filter_remove($this->filter);
64		}
65	7	}
66
67		/**
68		* @return string
69		*/
70	4	public function __toString(): string
71		{
72	4	$this->rewind();
73	4	return $this->decoratedStream->__toString();
74		}
75
76		public function close(): void
77		{
78		$this->decoratedStream->close();
79		}
80
81		/**
82		* @return mixed
83		*/
84		public function detach()
85		{
86		return $this->decoratedStream->detach();
87		}
88
89		/**
90		* @return int\|null
91		*/
92	2	public function getSize(): ?int
93		{
94	2	$this->removeFilter();
95	2	$contents = \preg_replace("/\r\n/", '', (string)$this->decoratedStream->getContents());
96	2	$lastCharacters = \substr($contents, -2);
97	2	$this->decoratedStream->rewind();
98	2	$this->applyFilter();
99
100	2	$padding = 0;
101	2	if ($lastCharacters[0] === '=') {
102	1	$padding++;
103		}
104	2	if ($lastCharacters[1] === '=') {
105	2	$padding++;
106		}
107
108	2	return (int) ((\strlen($contents) / 4) * 3) - $padding;
109		}
110
111		/**
112		* @return int
113		* @throws \RuntimeException
114		*/
115	2	public function tell(): int
116		{
117	2	return $this->decoratedStream->tell();
118		}
119
120		/**
121		* @return bool
122		*/
123		public function eof(): bool
124		{
125		return $this->decoratedStream->eof();
126		}
127
128		/**
129		* @return bool
130		*/
131		public function isSeekable(): bool
132		{
133		return false;
134		}
135
136		/**
137		* @param int $offset
138		* @param int $whence
139		* @return int
140		*/
141	2	public function seek(int $offset, int $whence = SEEK_SET): int
142		{
143	2	return -1;
144		}
145
146		/**
147		* @return bool
148		*/
149	6	public function rewind(): bool
150		{
151	6	$this->removeFilter();
152	6	if (!$this->decoratedStream->rewind()) {
153		return false;
154		}
155
156	6	$this->applyFilter();
157	6	return true;
158		}
159
160		/**
161		* @return bool
162		*/
163	2	public function isWritable(): bool
164		{
165	2	return false;
166		}
167
168		/**
169		* @param string $string
170		* @return int
171		*/
172	2	public function write($string): int
173		{
174	2	throw new \RuntimeException('Cannot write to stream');
175		}
176
177		/**
178		* @return bool
179		*/
180		public function isReadable(): bool
181		{
182		return true;
183		}
184
185		/**
186		* @param int $length
187		* @return string
188		*/
189	2	public function read(int $length): string
190		{
191	2	return $this->decoratedStream->read($length);
192		}
193
194		/**
195		* @return string
196		*/
197	4	public function getContents(): string
198		{
199	4	return $this->decoratedStream->getContents();
200		}
201
202		/**
203		* @param array<int, string> $keys
204		* @return array<string, mixed>
		0 ignored issues – show Documentation introduced 2020-09-17 11:04 UTC by Report Bug Copy Issue Report The doc-type `array<string,` could not be parsed: Expected ">" at position 5, but found "end of type". (view supported doc-types) This check marks PHPDoc comments that could not be parsed by our parser. To see which comment annotations we can parse, please refer to our documentation on supported doc-types. Loading history...
205		*/
206		public function getMetadata(array $keys = []): array
207		{
208		return $this->decoratedStream->getMetadata();
209		}
210		}
211

genkgo / mail

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Base64DecodedStream::getSize() A

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