MessageTrait::normalizeHeaderName() - Code Metrics - Inspection of "Make all test classes final" - httpsoft/http-message - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — master ( f6ef55...62cb71 )

by Evgeniy

created 2021-02-19 18:46 UTC

MessageTrait::normalizeHeaderName() A

↳ Parent: MessageTrait

Complexity

Conditions	5
Paths	2

Size

Total Lines	10
Code Lines	5

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	3
CRAP Score	5

Importance

Changes	2
Bugs	0	Features	0

Metric	Value
cc	5
eloc	5
c	2
b	0
f	0
nc	2
nop	1
dl	0
loc	10
ccs	3
cts	3
cp	1
crap	5
rs	9.6111

<?php

declare(strict_types=1);

namespace HttpSoft\Message;

use InvalidArgumentException;
use Psr\Http\Message\MessageInterface;
use Psr\Http\Message\StreamInterface;

use function array_merge;
use function array_values;
use function gettype;
use function get_class;
use function implode;
use function in_array;
use function is_array;
use function is_numeric;
use function is_object;
use function is_resource;
use function is_string;
use function preg_match;
use function sprintf;
use function strtolower;

/**
 * Trait implementing the methods defined in `Psr\Http\Message\MessageInterface`.
 *
 * @see https://github.com/php-fig/http-message/tree/master/src/MessageInterface.php
 */
trait MessageTrait
{
    /**
     * Supported HTTP Protocol Versions.
     *
     * @var string[]
     */
    private static array $supportedProtocolVersions = ['1.0', '1.1', '2.0', '2'];

    /**
     * Map of all registered original headers, as `original header name` => `array of values`.
     *
     * @var string[][]
     */
    private array $headers = [];

    /**
     * Map of all header names, as `normalized header name` => `original header name` at registration.
     *
     * @var string[]
     */
    private array $headerNames = [];

    /**
     * @var string
     */
    private string $protocol = '1.1';

    /**
     * @var StreamInterface
     */
    private StreamInterface $stream;

    /**
     * Retrieves the HTTP protocol version as a string.
     *
     * The string MUST contain only the HTTP version number (e.g., "1.1", "1.0").
     *
     * @return string HTTP protocol version.
     */
    public function getProtocolVersion(): string
    {
        return $this->protocol;
    }

    /**
     * Return an instance with the specified HTTP protocol version.
     *
     * The version string MUST contain only the HTTP version number (e.g.,
     * "1.1", "1.0").
     *
     * This method MUST be implemented in such a way as to retain the
     * immutability of the message, and MUST return an instance that has the
     * new protocol version.
     *
     * @param string $version HTTP protocol version
     * @return static
     * @throws InvalidArgumentException for invalid HTTP protocol version.
     */
    public function withProtocolVersion($version): MessageInterface
    {
        if ($version === $this->protocol) {
            return $this;

        }

        $this->validateProtocolVersion($version);
        $new = clone $this;
        $new->protocol = $version;
        return $new;

    }

    /**
     * Retrieves all message header values.
     *
     * The keys represent the header name as it will be sent over the wire, and
     * each value is an array of strings associated with the header.
     *
     *     // Represent the headers as a string
     *     foreach ($message->getHeaders() as $name => $values) {
     *         echo $name . ": " . implode(", ", $values);
     *     }
     *
     *     // Emit headers iteratively:
     *     foreach ($message->getHeaders() as $name => $values) {
     *         foreach ($values as $value) {
     *             header(sprintf('%s: %s', $name, $value), false);
     *         }
     *     }
     *
     * While header names are not case-sensitive, getHeaders() will preserve the
     * exact case in which headers were originally specified.
     *
     * @return string[][] Returns an associative array of the message's headers. Each
     *     key MUST be a header name, and each value MUST be an array of strings
     *     for that header.
     */
    public function getHeaders(): array
    {
        return $this->headers;
    }

    /**
     * Checks if a header exists by the given case-insensitive name.
     *
     * @param string $name Case-insensitive header field name.
     * @return bool Returns true if any header names match the given header
     *     name using a case-insensitive string comparison. Returns false if
     *     no matching header name is found in the message.
     * @psalm-suppress RedundantConditionGivenDocblockType
     */
    public function hasHeader($name): bool
    {
        return (is_string($name) && isset($this->headerNames[strtolower($name)]));
    }

    /**
     * Retrieves a message header value by the given case-insensitive name.
     *
     * This method returns an array of all the header values of the given
     * case-insensitive header name.
     *
     * If the header does not appear in the message, this method MUST return an
     * empty array.
     *
     * @param string $name Case-insensitive header field name.
     * @return string[] An array of string values as provided for the given
     *    header. If the header does not appear in the message, this method MUST
     *    return an empty array.
     */
    public function getHeader($name): array
    {
        if (!$this->hasHeader($name)) {
            return [];
        }

        return $this->headers[$this->headerNames[strtolower($name)]];
    }

    /**
     * Retrieves a comma-separated string of the values for a single header.
     *
     * This method returns all of the header values of the given
     * case-insensitive header name as a string concatenated together using
     * a comma.
     *
     * NOTE: Not all header values may be appropriately represented using
     * comma concatenation. For such headers, use getHeader() instead
     * and supply your own delimiter when concatenating.
     *
     * If the header does not appear in the message, this method MUST return
     * an empty string.
     *
     * @param string $name Case-insensitive header field name.
     * @return string A string of values as provided for the given header
     *    concatenated together using a comma. If the header does not appear in
     *    the message, this method MUST return an empty string.
     */
    public function getHeaderLine($name): string
    {
        if (!$value = $this->getHeader($name)) {
            return '';
        }

        return implode(',', $value);
    }

    /**
     * Return an instance with the provided value replacing the specified header.
     *
     * While header names are case-insensitive, the casing of the header will
     * be preserved by this function, and returned from getHeaders().
     *
     * This method MUST be implemented in such a way as to retain the
     * immutability of the message, and MUST return an instance that has the
     * new and/or updated header and value.
     *
     * @param string $name Case-insensitive header field name.
     * @param string|string[] $value Header value(s).
     * @return static
     * @throws InvalidArgumentException for invalid header names or values.
     * @psalm-suppress MixedPropertyTypeCoercion
     */
    public function withHeader($name, $value): MessageInterface
    {
        $normalized = $this->normalizeHeaderName($name);
        $value = $this->normalizeHeaderValue($value);
        $new = clone $this;

        if (isset($new->headerNames[$normalized])) {
            unset($new->headers[$new->headerNames[$normalized]]);
        }

        $new->headerNames[$normalized] = $name;
        $new->headers[$name] = $value;
        return $new;

    }

    /**
     * Return an instance with the specified header appended with the given value.
     *
     * Existing values for the specified header will be maintained. The new
     * value(s) will be appended to the existing list. If the header did not
     * exist previously, it will be added.
     *
     * This method MUST be implemented in such a way as to retain the
     * immutability of the message, and MUST return an instance that has the
     * new header and/or value.
     *
     * @param string $name Case-insensitive header field name to add.
     * @param string|string[] $value Header value(s).
     * @return static
     * @throws InvalidArgumentException for invalid header names or values.
     * @psalm-suppress MixedPropertyTypeCoercion
     */
    public function withAddedHeader($name, $value): MessageInterface
    {
        if (!$this->hasHeader($name)) {
            return $this->withHeader($name, $value);

        }

        $header = $this->headerNames[$this->normalizeHeaderName($name)];
        $value = $this->normalizeHeaderValue($value);

        $new = clone $this;
        $new->headers[$header] = array_merge($this->headers[$header], $value);
        return $new;

    }

    /**
     * Return an instance without the specified header.
     *
     * Header resolution MUST be done without case-sensitivity.
     *
     * This method MUST be implemented in such a way as to retain the
     * immutability of the message, and MUST return an instance that removes
     * the named header.
     *
     * @param string $name Case-insensitive header field name to remove.
     * @return static
     */
    public function withoutHeader($name): MessageInterface
    {
        if (!$this->hasHeader($name)) {
            return $this;

        }

        $normalized = $this->normalizeHeaderName($name);
        $new = clone $this;
        unset($new->headers[$this->headerNames[$normalized]], $new->headerNames[$normalized]);
        return $new;

    }

    /**
     * Gets the body of the message.
     *
     * @return StreamInterface Returns the body as a stream.
     */
    public function getBody(): StreamInterface
    {
        return $this->stream;
    }

    /**
     * Return an instance with the specified message body.
     *
     * The body MUST be a StreamInterface object.
     *
     * This method MUST be implemented in such a way as to retain the
     * immutability of the message, and MUST return a new instance that has the
     * new body stream.
     *
     * @param StreamInterface $body Body.
     * @return static
     * @throws InvalidArgumentException When the body is not valid.
     */
    public function withBody(StreamInterface $body): MessageInterface
    {
        $new = clone $this;
        $new->stream = $body;
        return $new;

    }

    /**
     * @param StreamInterface|string|resource $stream
     * @param string $mode
     * @psalm-suppress RedundantConditionGivenDocblockType
     */
    private function registerStream($stream, string $mode = 'wb+'): void
    {
        if ($stream instanceof StreamInterface) {
            $this->stream = $stream;
            return;
        }

        if (is_string($stream) || is_resource($stream)) {
            $this->stream = new Stream($stream, $mode);
            return;
        }

        throw new InvalidArgumentException(sprintf(
            'Stream must be a `Psr\Http\Message\StreamInterface` implementation'
            . ' or a string stream resource identifier or an actual stream resource; received `%s`.',
            (is_object($stream) ? get_class($stream) : gettype($stream))
        ));
    }

    /**
     * @param array<string, string|int|float> $originalHeaders
     * @throws InvalidArgumentException When the header name or header value is not valid.
     * @psalm-suppress MixedPropertyTypeCoercion
     */
    private function registerHeaders(array $originalHeaders = []): void
    {
        $this->headers = [];
        $this->headerNames = [];

        foreach ($originalHeaders as $name => $value) {
            $this->headerNames[$this->normalizeHeaderName($name)] = $name;
            $this->headers[$name] = $this->normalizeHeaderValue($value);
        }
    }

    /**
     * @param string $protocol
     * @throws InvalidArgumentException for invalid HTTP protocol version.
     */
    private function registerProtocolVersion(string $protocol): void
    {
        if (!empty($protocol) && $protocol !== $this->protocol) {
            $this->validateProtocolVersion($protocol);
            $this->protocol = $protocol;
        }
    }

    /**
     * @param mixed $name
     * @return string
     * @throws InvalidArgumentException for invalid header name.
     */
    private function normalizeHeaderName($name): string
    {
        if (!is_string($name) || !preg_match('/^[a-zA-Z0-9\'`#$%&*+.^_|~!-]+$/', $name)) {
            throw new InvalidArgumentException(sprintf(
                '`%s` is not valid header name.',
                (is_object($name) ? get_class($name) : (is_string($name) ? $name : gettype($name)))
            ));
        }

        return strtolower($name);
    }

    /**
     * @param mixed $value
     * @return array
     * @throws InvalidArgumentException for invalid header name.
     */
    private function normalizeHeaderValue($value): array
    {
        $value = is_array($value) ? array_values($value) : [$value];

        if (empty($value)) {
            throw new InvalidArgumentException(
                'Header value must be a string or an array of strings, empty array given.',
            );
        }

        foreach ($value as $v) {
            if ((!is_string($v) && !is_numeric($v)) || !preg_match('/^[ \t\x21-\x7E\x80-\xFF]*$/', (string) $v)) {
                throw new InvalidArgumentException(sprintf(
                    '"%s" is not valid header value.',
                    (is_object($v) ? get_class($v) : (is_string($v) ? $v : gettype($v)))
                ));
            }
        }

        return $value;
    }

    /**
     * @param mixed $protocol
     * @throws InvalidArgumentException for invalid HTTP protocol version.
     */
    private function validateProtocolVersion($protocol): void
    {
        if (!in_array($protocol, self::$supportedProtocolVersions, true)) {
            throw new InvalidArgumentException(sprintf(
                'Unsupported HTTP protocol version "%s" provided. The following strings are supported: "%s".',
                is_string($protocol) ? $protocol : gettype($protocol),
                implode('", "', self::$supportedProtocolVersions),
            ));
        }
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace HttpSoft\Message;
6
7		use InvalidArgumentException;
8		use Psr\Http\Message\MessageInterface;
9		use Psr\Http\Message\StreamInterface;
10
11		use function array_merge;
12		use function array_values;
13		use function gettype;
14		use function get_class;
15		use function implode;
16		use function in_array;
17		use function is_array;
18		use function is_numeric;
19		use function is_object;
20		use function is_resource;
21		use function is_string;
22		use function preg_match;
23		use function sprintf;
24		use function strtolower;
25
26		/**
27		* Trait implementing the methods defined in `Psr\Http\Message\MessageInterface`.
28		*
29		* @see https://github.com/php-fig/http-message/tree/master/src/MessageInterface.php
30		*/
31		trait MessageTrait
32		{
33		/**
34		* Supported HTTP Protocol Versions.
35		*
36		* @var string[]
37		*/
38		private static array $supportedProtocolVersions = ['1.0', '1.1', '2.0', '2'];
39
40		/**
41		* Map of all registered original headers, as `original header name` => `array of values`.
42		*
43		* @var string[][]
44		*/
45		private array $headers = [];
46
47		/**
48		* Map of all header names, as `normalized header name` => `original header name` at registration.
49		*
50		* @var string[]
51		*/
52		private array $headerNames = [];
53
54		/**
55		* @var string
56		*/
57		private string $protocol = '1.1';
58
59		/**
60		* @var StreamInterface
61		*/
62		private StreamInterface $stream;
63	7
64		/**
65	7	* Retrieves the HTTP protocol version as a string.
66		*
67		* The string MUST contain only the HTTP version number (e.g., "1.1", "1.0").
68		*
69		* @return string HTTP protocol version.
70		*/
71		public function getProtocolVersion(): string
72		{
73		return $this->protocol;
74		}
75
76		/**
77		* Return an instance with the specified HTTP protocol version.
78		*
79		* The version string MUST contain only the HTTP version number (e.g.,
80		* "1.1", "1.0").
81		*
82	11	* This method MUST be implemented in such a way as to retain the
83		* immutability of the message, and MUST return an instance that has the
84	11	* new protocol version.
85	1	*
86		* @param string $version HTTP protocol version
87		* @return static
88	10	* @throws InvalidArgumentException for invalid HTTP protocol version.
89	1	*/
90	1	public function withProtocolVersion($version): MessageInterface
91	1	{
92		if ($version === $this->protocol) {
93		return $this;
		0 ignored issues – show Bug Best Practice introduced 2020-08-22 15:04 UTC by Report Bug Copy Issue Report The expression `return $this` returns the type `HttpSoft\Message\MessageTrait` which is incompatible with the type-hinted return `Psr\Http\Message\MessageInterface`. Loading history...
94		}
95
96		$this->validateProtocolVersion($version);
97		$new = clone $this;
98		$new->protocol = $version;
99		return $new;
		0 ignored issues – show Bug Best Practice introduced 2020-08-22 15:04 UTC by Report Bug Copy Issue Report The expression `return $new` returns the type `HttpSoft\Message\MessageTrait` which is incompatible with the type-hinted return `Psr\Http\Message\MessageInterface`. Loading history...
100		}
101
102		/**
103		* Retrieves all message header values.
104		*
105		* The keys represent the header name as it will be sent over the wire, and
106		* each value is an array of strings associated with the header.
107		*
108		* // Represent the headers as a string
109		* foreach ($message->getHeaders() as $name => $values) {
110		* echo $name . ": " . implode(", ", $values);
111		* }
112		*
113		* // Emit headers iteratively:
114		* foreach ($message->getHeaders() as $name => $values) {
115		* foreach ($values as $value) {
116		* header(sprintf('%s: %s', $name, $value), false);
117		* }
118		* }
119	10	*
120		* While header names are not case-sensitive, getHeaders() will preserve the
121	10	* exact case in which headers were originally specified.
122		*
123		* @return string[][] Returns an associative array of the message's headers. Each
124		* key MUST be a header name, and each value MUST be an array of strings
125		* for that header.
126		*/
127		public function getHeaders(): array
128		{
129		return $this->headers;
130		}
131
132		/**
133	82	* Checks if a header exists by the given case-insensitive name.
134		*
135	82	* @param string $name Case-insensitive header field name.
136		* @return bool Returns true if any header names match the given header
137		* name using a case-insensitive string comparison. Returns false if
138		* no matching header name is found in the message.
139		* @psalm-suppress RedundantConditionGivenDocblockType
140		*/
141		public function hasHeader($name): bool
142		{
143		return (is_string($name) && isset($this->headerNames[strtolower($name)]));
144		}
145
146		/**
147		* Retrieves a message header value by the given case-insensitive name.
148		*
149		* This method returns an array of all the header values of the given
150		* case-insensitive header name.
151		*
152	6	* If the header does not appear in the message, this method MUST return an
153		* empty array.
154	6	*
155	2	* @param string $name Case-insensitive header field name.
156		* @return string[] An array of string values as provided for the given
157		* header. If the header does not appear in the message, this method MUST
158	4	* return an empty array.
159		*/
160		public function getHeader($name): array
161		{
162		if (!$this->hasHeader($name)) {
163		return [];
164		}
165
166		return $this->headers[$this->headerNames[strtolower($name)]];
167		}
168
169		/**
170		* Retrieves a comma-separated string of the values for a single header.
171		*
172		* This method returns all of the header values of the given
173		* case-insensitive header name as a string concatenated together using
174		* a comma.
175		*
176		* NOTE: Not all header values may be appropriately represented using
177		* comma concatenation. For such headers, use getHeader() instead
178		* and supply your own delimiter when concatenating.
179		*
180	2	* If the header does not appear in the message, this method MUST return
181		* an empty string.
182	2	*
183	1	* @param string $name Case-insensitive header field name.
184		* @return string A string of values as provided for the given header
185		* concatenated together using a comma. If the header does not appear in
186	1	* the message, this method MUST return an empty string.
187		*/
188		public function getHeaderLine($name): string
189		{
190		if (!$value = $this->getHeader($name)) {
191		return '';
192		}
193
194		return implode(',', $value);
195		}
196
197		/**
198		* Return an instance with the provided value replacing the specified header.
199		*
200		* While header names are case-insensitive, the casing of the header will
201		* be preserved by this function, and returned from getHeaders().
202		*
203		* This method MUST be implemented in such a way as to retain the
204		* immutability of the message, and MUST return an instance that has the
205	26	* new and/or updated header and value.
206		*
207	26	* @param string $name Case-insensitive header field name.
208	15	* @param string\|string[] $value Header value(s).
209	15	* @return static
210		* @throws InvalidArgumentException for invalid header names or values.
211	15	* @psalm-suppress MixedPropertyTypeCoercion
212		*/
213		public function withHeader($name, $value): MessageInterface
214		{
215	15	$normalized = $this->normalizeHeaderName($name);
216	15	$value = $this->normalizeHeaderValue($value);
217		$new = clone $this;
218	6
219	6	if (isset($new->headerNames[$normalized])) {
220	6	unset($new->headers[$new->headerNames[$normalized]]);
221		}
222
223		$new->headerNames[$normalized] = $name;
224		$new->headers[$name] = $value;
225		return $new;
		0 ignored issues – show Bug Best Practice introduced 2020-08-22 15:04 UTC by Report Bug Copy Issue Report The expression `return $new` returns the type `HttpSoft\Message\MessageTrait` which is incompatible with the type-hinted return `Psr\Http\Message\MessageInterface`. Loading history...
226		}
227
228		/**
229		* Return an instance with the specified header appended with the given value.
230		*
231		* Existing values for the specified header will be maintained. The new
232		* value(s) will be appended to the existing list. If the header did not
233		* exist previously, it will be added.
234		*
235		* This method MUST be implemented in such a way as to retain the
236		* immutability of the message, and MUST return an instance that has the
237		* new header and/or value.
238		*
239		* @param string $name Case-insensitive header field name to add.
240	1	* @param string\|string[] $value Header value(s).
241		* @return static
242	1	* @throws InvalidArgumentException for invalid header names or values.
243		* @psalm-suppress MixedPropertyTypeCoercion
244	1	*/
245	1	public function withAddedHeader($name, $value): MessageInterface
246		{
247		if (!$this->hasHeader($name)) {
248	1	return $this->withHeader($name, $value);
		0 ignored issues – show Bug Best Practice introduced 2020-08-22 15:04 UTC by Report Bug Copy Issue Report The expression `return $this->withHeader($name, $value)` returns the type `Psr\Http\Message\MessageInterface` which is incompatible with the documented return type `HttpSoft\Message\MessageTrait`. Loading history...
249	1	}
250	1
251		$header = $this->headerNames[$this->normalizeHeaderName($name)];
252	1	$value = $this->normalizeHeaderValue($value);
253	1
254	1	$new = clone $this;
255		$new->headers[$header] = array_merge($this->headers[$header], $value);
256		return $new;
		0 ignored issues – show Bug Best Practice introduced 2020-08-22 15:04 UTC by Report Bug Copy Issue Report The expression `return $new` returns the type `HttpSoft\Message\MessageTrait` which is incompatible with the type-hinted return `Psr\Http\Message\MessageInterface`. Loading history...
257		}
258
259		/**
260		* Return an instance without the specified header.
261		*
262		* Header resolution MUST be done without case-sensitivity.
263		*
264		* This method MUST be implemented in such a way as to retain the
265		* immutability of the message, and MUST return an instance that removes
266		* the named header.
267		*
268		* @param string $name Case-insensitive header field name to remove.
269	1	* @return static
270		*/
271	1	public function withoutHeader($name): MessageInterface
272		{
273		if (!$this->hasHeader($name)) {
274		return $this;
		0 ignored issues – show Bug Best Practice introduced 2020-08-22 15:04 UTC by Report Bug Copy Issue Report The expression `return $this` returns the type `HttpSoft\Message\MessageTrait` which is incompatible with the type-hinted return `Psr\Http\Message\MessageInterface`. Loading history...
275	1	}
276	1
277	1	$normalized = $this->normalizeHeaderName($name);
278	1	$new = clone $this;
279		unset($new->headers[$this->headerNames[$normalized]], $new->headerNames[$normalized]);
280		return $new;
		0 ignored issues – show Bug Best Practice introduced 2020-08-22 15:04 UTC by Report Bug Copy Issue Report The expression `return $new` returns the type `HttpSoft\Message\MessageTrait` which is incompatible with the type-hinted return `Psr\Http\Message\MessageInterface`. Loading history...
281		}
282
283		/**
284		* Gets the body of the message.
285		*
286	8	* @return StreamInterface Returns the body as a stream.
287		*/
288	8	public function getBody(): StreamInterface
289		{
290		return $this->stream;
291		}
292
293		/**
294		* Return an instance with the specified message body.
295		*
296		* The body MUST be a StreamInterface object.
297		*
298		* This method MUST be implemented in such a way as to retain the
299		* immutability of the message, and MUST return a new instance that has the
300		* new body stream.
301		*
302		* @param StreamInterface $body Body.
303		* @return static
304	1	* @throws InvalidArgumentException When the body is not valid.
305		*/
306	1	public function withBody(StreamInterface $body): MessageInterface
307	1	{
308	1	$new = clone $this;
309		$new->stream = $body;
310		return $new;
		0 ignored issues – show Bug Best Practice introduced 2020-08-22 15:04 UTC by Report Bug Copy Issue Report The expression `return $new` returns the type `HttpSoft\Message\MessageTrait` which is incompatible with the type-hinted return `Psr\Http\Message\MessageInterface`. Loading history...
311		}
312
313		/**
314		* @param StreamInterface\|string\|resource $stream
315		* @param string $mode
316	143	* @psalm-suppress RedundantConditionGivenDocblockType
317		*/
318	143	private function registerStream($stream, string $mode = 'wb+'): void
319	1	{
320	1	if ($stream instanceof StreamInterface) {
321		$this->stream = $stream;
322		return;
323	143	}
324	143
325	143	if (is_string($stream) \|\| is_resource($stream)) {
326		$this->stream = new Stream($stream, $mode);
327		return;
328	7	}
329
330		throw new InvalidArgumentException(sprintf(
331	7	'Stream must be a `Psr\Http\Message\StreamInterface` implementation'
332		. ' or a string stream resource identifier or an actual stream resource; received `%s`.',
333		(is_object($stream) ? get_class($stream) : gettype($stream))
334		));
335		}
336
337		/**
338		* @param array<string, string\|int\|float> $originalHeaders
339		* @throws InvalidArgumentException When the header name or header value is not valid.
340	143	* @psalm-suppress MixedPropertyTypeCoercion
341		*/
342	143	private function registerHeaders(array $originalHeaders = []): void
343	143	{
344		$this->headers = [];
345	143	$this->headerNames = [];
346	1
347	1	foreach ($originalHeaders as $name => $value) {
348	1	$this->headerNames[$this->normalizeHeaderName($name)] = $name;
349	1	$this->headers[$name] = $this->normalizeHeaderValue($value);
350	1	}
351		}
352	143
353		/**
354		* @param string $protocol
355		* @throws InvalidArgumentException for invalid HTTP protocol version.
356		*/
357		private function registerProtocolVersion(string $protocol): void
358	143	{
359		if (!empty($protocol) && $protocol !== $this->protocol) {
360	143	$this->validateProtocolVersion($protocol);
361	1	$this->protocol = $protocol;
362	1	}
363		}
364	143
365		/**
366		* @param mixed $name
367		* @return string
368		* @throws InvalidArgumentException for invalid header name.
369		*/
370	83	private function normalizeHeaderName($name): string
371		{
372	83	if (!is_string($name) \|\| !preg_match('/^[a-zA-Z0-9\'`#$%&*+.^_\|~!-]+$/', $name)) {
373		throw new InvalidArgumentException(sprintf(
374		'`%s` is not valid header name.',
375		(is_object($name) ? get_class($name) : (is_string($name) ? $name : gettype($name)))
376		));
377		}
378
379	16	return strtolower($name);
380		}
381	16
382		/**
383		* @param mixed $value
384		* @return array
385		* @throws InvalidArgumentException for invalid header name.
386		*/
387		private function normalizeHeaderValue($value): array
388	27	{
389		$value = is_array($value) ? array_values($value) : [$value];
390	27
391	11	if (empty($value)) {
392		throw new InvalidArgumentException(
393	11	'Header value must be a string or an array of strings, empty array given.',
394		);
395		}
396	16
397		foreach ($value as $v) {
398		if ((!is_string($v) && !is_numeric($v)) \|\| !preg_match('/^[ \t\x21-\x7E\x80-\xFF]*$/', (string) $v)) {
399		throw new InvalidArgumentException(sprintf(
400		'"%s" is not valid header value.',
401		(is_object($v) ? get_class($v) : (is_string($v) ? $v : gettype($v)))
402		));
403	16	}
404		}
405	16
406	1	return $value;
407		}
408
409	15	/**
410		* @param mixed $protocol
411	15	* @throws InvalidArgumentException for invalid HTTP protocol version.
412	15	*/
413	15	private function validateProtocolVersion($protocol): void
414		{
415	8	if (!in_array($protocol, self::$supportedProtocolVersions, true)) {
416		throw new InvalidArgumentException(sprintf(
417	8	'Unsupported HTTP protocol version "%s" provided. The following strings are supported: "%s".',
418		is_string($protocol) ? $protocol : gettype($protocol),
419		implode('", "', self::$supportedProtocolVersions),
420		));
421	7	}
422		}
423		}
424

httpsoft / http-message

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MessageTrait::normalizeHeaderName() A

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