Uri::normalizeScheme() - Code Metrics - kambo-1st/HttpMessage - Measure and Improve Code Quality continuously with Scrutinizer

Uri::normalizeScheme() A
last analyzed 2018-01-24 22:49 UTC

↳ Parent: Uri

Complexity

Conditions	4
Paths	3

Size

Total Lines	13
Code Lines	7

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	7
CRAP Score	4

Importance

Changes

Metric	Value
dl	0
loc	13
ccs	7
cts	7
cp	1
rs	9.2
c	0
b	0
f	0
cc	4
eloc	7
nc	3
nop	1
crap	4

<?php
namespace Kambo\Http\Message;

// \Spl
use InvalidArgumentException;

// \Psr
use Psr\Http\Message\UriInterface;

// \Http\Message
use Kambo\Http\Message\Utils\UriValidator;

/**
 * Value object representing a URI.
 *
 * This class represent URIs according to RFC 3986 and to
 * provide methods for most common operations. Additional functionality for
 * working with URIs can be provided on top of the object or externally.
 * Its primary use is for HTTP requests, but may also be used in other
 * contexts.
 *
 * Instances of the uri are considered immutable; all methods that
 * change state retain the internal state of the current message and return
 * an instance that contains the changed state.
 *
 * @link http://tools.ietf.org/html/rfc3986 (the URI specification)
 *
 * @package Kambo\Http\Message
 * @author  Bohuslav Simek <[email protected]>
 * @license MIT
 */
class Uri implements UriInterface
{
    const HTTP  = 'http';
    const HTTPS = 'https';

    /**
     * Http port
     *
     * @var integer
     */
    const HTTP_PORT = 80;

    /**
     * Https port
     *
     * @var integer
     */
    const HTTPS_PORT = 443;

    /**
     * Valid URI schemas
     * Schema can be http, https or empty.
     *
     * @var array in format [ string "schema"=> boolean true (true valid), ... ]
     */
    private $validSchema = [
        '' => true,
        self::HTTPS => true,
        self::HTTP => true,
    ];

    /**
     * URL scheme of the URI.
     * Default value is an empty string.
     *
     * @var string
     */
    private $scheme = '';

    /**
     * Path component of the URI.
     * Default value is an empty string.
     *
     * @var string
     */
    private $path = '';

    /**
     * Query string of the URI.
     * Default value is an empty string.
     *
     * @var string
     */
    private $query = '';

    /**
     * Fragment component of the URI.
     * Default value is an empty string.
     *
     * @var string
     */
    private $fragment = '';

    /**
     * User part of the URI.
     * Default value is an empty string.
     *
     * @var string
     */
    private $user = '';

    /**
     * Password part of the URI.
     * Default value is an empty string.
     *
     * @var string
     */
    private $password = '';

    /**
     * Host component of the URI eg. foo.bar
     *
     * @var string
     */
    private $host;

    /**
     * Port component of the URI eg. 443.
     *
     * @var integer
     */
    private $port;

    /**
     * Instance of uri validator
     *
     * @var UriValidator
     */
    private $validator;

    /**
     * Create new Uri.
     *
     * @param string $scheme   Uri scheme.
     * @param string $host     Uri host.
     * @param int    $port     Uri port number.
     * @param string $path     Uri path.
     * @param string $query    Uri query string.
     * @param string $fragment Uri fragment.
     * @param string $user     Uri user.
     * @param string $password Uri password.
     */
    public function __construct(
        $scheme,
        $host,
        $port = null,
        $path = '/',
        $query = '',
        $fragment = '',
        $user = '',
        $password = ''
    ) {
        $this->scheme   = $this->normalizeScheme($scheme);
        $this->host     = strtolower($host);
        $this->port     = $port;
        $this->path     = $this->normalizePath($path);
        $this->query    = $this->urlEncode($query);
        $this->fragment = $fragment;
        $this->user     = $user;
        $this->password = $password;

        $this->validator = new UriValidator();
    }

    /**
     * Retrieve the scheme component of the URI.
     *
     * If no scheme is present, this method return an empty string.
     *
     * Underline implementation normalize schema to lowercase, as described in RFC 3986
     * Section 3.1.
     *
     * The trailing ":" character is not part of the scheme and is not added.
     *
     * @see https://tools.ietf.org/html/rfc3986#section-3.1
     *
     * @return string The URI scheme.
     */
    public function getScheme()
    {
        return $this->scheme;
    }

    /**
     * Retrieve the authority component of the URI.
     *
     * If no authority information is present, this method returns an empty
     * string.
     *
     * The authority syntax of the URI is:
     *
     * <pre>
     * [user-info@]host[:port]
     * </pre>
     *
     * If the port component is not set or is the standard port for the current
     * scheme, it is not included.
     *
     * @see https://tools.ietf.org/html/rfc3986#section-3.2
     *
     * @return string The URI authority, in "[user-info@]host[:port]" format.
     */
    public function getAuthority()
    {
        $port     = $this->getPort();
        $userInfo = $this->getUserInfo();

        return ($userInfo ? $userInfo . '@' : '') . $this->getHost() . ($port ? ':' . $port : '');
    }

    /**
     * Retrieve the user information component of the URI.
     *
     * If no user information is present, this method returns an empty string.
     *
     * If a user is present in the URI, this method return that value;
     * additionally, if the password is also present, it will be appended to the
     * user value, with a colon (":") separating the values.
     *
     * The trailing "@" character is not part of the user information and is not added.
     *
     * @return string The URI user information, in "username[:password]" format.
     */
    public function getUserInfo()
    {
        $userInfo = '';
        if (!empty($this->user)) {
            $userInfo = $this->user;
            if (!empty($this->password)) {
                $userInfo .= ':' . $this->password;
            }
        }

        return $userInfo;
    }

    /**
     * Retrieve the host component of the URI.
     *
     * If no host is present, this method returns an empty string.
     *
     * Underline implementation normalize the host name to lowercase, as described in RFC 3986
     * Section 3.2.2.
     *
     * @see http://tools.ietf.org/html/rfc3986#section-3.2.2
     *
     * @return string The URI host.
     */
    public function getHost()
    {
        return $this->host;
    }

    /**
     * Retrieve the port component of the URI.
     *
     * If a port is present, and it is non-standard for the current scheme,
     * this method return it as an integer. If the port is the standard port
     * used with the current scheme, this method return null.
     *
     * If no port is present, and no scheme is present, this method returns
     * a null value.
     *
     * If no port is present, but a scheme is present, this method MAY return
     * the standard port for that scheme, but SHOULD return null.
     *
     * @return null|int The URI port.
     */
    public function getPort()
    {
        return $this->isStandardPort() ? null : $this->port;
    }

    /**
     * Retrieve the path component of the URI.
     *
     * The path can either be empty or absolute (starting with a slash) or
     * rootless (not starting with a slash). Implementation support all
     * three syntaxes.
     *
     * Normally, the empty path "" and absolute path "/" are considered equal as
     * defined in RFC 7230 Section 2.7.3. But this method does not automatically
     * do this normalization because in contexts with a trimmed base path, e.g.
     * the front controller, this difference becomes significant. It's the task
     * of the user to handle both "" and "/".
     *
     * The value returned is percent-encoded, and underline implementation ensure that 
     * the value is not double-encode. Encoded characters are defined in 
     * RFC 3986, Sections 2 and 3.4.
     *
     * As an example, if the value should include a slash ("/") not intended as
     * delimiter between path segments, that value is passed in encoded
     * form (e.g., "%2F") to the instance.
     *
     * @see https://tools.ietf.org/html/rfc3986#section-2
     * @see https://tools.ietf.org/html/rfc3986#section-3.3
     *
     * @return string The URI path.
     */
    public function getPath()
    {
        return $this->path;
    }

    /**
     * Retrieve the query string of the URI.
     *
     * If no query string is present, this method returns an empty string.
     *
     * The leading "?" character is not part of the query and it is not added.
     *
     * The value returned is percent-encoded, and implementation ensure that 
     * the value is not double-encode. Encoded characters are defined in 
     * RFC 3986, Sections 2 and 3.4.
     *
     * As an example, if a value in a key/value pair of the query string should
     * include an ampersand ("&") not intended as a delimiter between values,
     * that value is passed in encoded form (e.g., "%26") to the instance.
     *
     * @see https://tools.ietf.org/html/rfc3986#section-2
     * @see https://tools.ietf.org/html/rfc3986#section-3.4
     *
     * @return string The URI query string.
     */
    public function getQuery()
    {
        return $this->query;
    }


    /**
     * Retrieve the fragment component of the URI.
     *
     * If no fragment is present, this method returns an empty string.
     *
     * The leading "#" character is not part of the fragment and it is not
     * added.
     *
     * The value returned is percent-encoded, and underline implementation ensure that 
     * the value is not double-encode. Encoded characters are defined in 
     * RFC 3986, Sections 2 and 3.4.
     *
     * @see https://tools.ietf.org/html/rfc3986#section-2
     * @see https://tools.ietf.org/html/rfc3986#section-3.5
     *
     * @return string The URI fragment.
     */
    public function getFragment()
    {
        return $this->fragment;
    }

    /**
     * Return an instance with the specified scheme.
     *
     * This method retains the state of the current instance, and returns
     * an instance that contains the specified scheme.
     *
     * Implementations support the schemes "http" and "https" case
     * insensitively.
     *
     * An empty scheme is equivalent to removing the scheme.
     *
     * @param string $scheme The scheme to use with the new instance.
     *
     * @return self A new instance with the specified scheme.
     *
     * @throws \InvalidArgumentException for invalid or unsupported schemes.
     */
    public function withScheme($scheme)
    {
        $clone         = clone $this;
        $clone->scheme = $this->normalizeScheme($scheme);

        return $clone;
    }

    /**
     * Return an instance with the specified user information.
     *
     * This method retains the state of the current instance, and returns
     * an instance that contains the specified user information.
     *
     * Password is optional, but the user information include the
     * user; an empty string for the user is equivalent to removing user
     * information.
     *
     * @param string      $user     The user name to use for authority.
     * @param null|string $password The password associated with $user.
     *
     * @return self A new instance with the specified user information.
     */
    public function withUserInfo($user, $password = null)
    {
        $clone           = clone $this;
        $clone->user     = $user;
        $clone->password = $password;

        return $clone;
    }

    /**
     * Return an instance with the specified host.
     *
     * This method retains the state of the current instance, and returns
     * an instance that contains the specified host.
     *
     * An empty host value is equivalent to removing the host.
     *
     * @param string $host The hostname to use with the new instance.
     *
     * @return self A new instance with the specified host.
     *
     * @throws \InvalidArgumentException for invalid hostnames.
     */
    public function withHost($host)
    {
        $clone       = clone $this;
        $clone->host = strtolower($host);

        return $clone;
    }

    /**
     * Return an instance with the specified port.
     *
     * This method retains the state of the current instance, and return
     * an instance that contains the specified port.
     *
     * Method raise an exception for ports outside the
     * established TCP and UDP port ranges.
     *
     * A null value provided for the port is equivalent to removing the port
     * information.
     *
     * @param null|int $port The port to use with the new instance; a null value
     *                       removes the port information.
     *
     * @return self A new instance with the specified port.
     *
     * @throws \InvalidArgumentException for invalid ports.
     */
    public function withPort($port)
    {
        $this->validator->validatePort($port);

        $clone       = clone $this;
        $clone->port = $port;

        return $clone;
    }

    /**
     * Return an instance with the specified path.
     *
     * This method retains the state of the current instance, and return
     * an instance that contains the specified path.
     *
     * The path can either be empty or absolute (starting with a slash) or
     * rootless (not starting with a slash). Implementations support all
     * three syntaxes.
     *
     * If the path is intended to be domain-relative rather than path relative then
     * it must begin with a slash ("/"). Paths not starting with a slash ("/")
     * are assumed to be relative to some base path known to the application or
     * consumer.
     *
     * Users can provide both encoded and decoded path characters.
     * Implementations ensure the correct encoding as outlined in getPath().
     *
     * @param string $path The path to use with the new instance.
     *
     * @return self A new instance with the specified path.
     *
     * @throws \InvalidArgumentException for invalid paths.
     */
    public function withPath($path)
    {
        $this->validator->validatePath($path);

        $clone       = clone $this;
        $clone->path = $this->urlEncode((string) $path);

        return $clone;
    }

    /**
     * Return an instance with the specified query string.
     *
     * This method retains the state of the current instance, and return
     * an instance that contains the specified query string.
     *
     * Users can provide both encoded and decoded query characters.
     * Implementation ensure the correct encoding as outlined in getQuery().
     *
     * An empty query string value is equivalent to removing the query string.
     *
     * @param string $query The query string to use with the new instance.
     *
     * @return self A new instance with the specified query string.
     *
     * @throws \InvalidArgumentException for invalid query strings.
     */
    public function withQuery($query)
    {
        $this->validator->validateQuery($query);

        $clone        = clone $this;
        $clone->query = $this->urlEncode((string) $query);

        return $clone;
    }

    /**
     * Return an instance with the specified URI fragment.
     *
     * This method retains the state of the current instance, and return
     * an instance that contains the specified URI fragment.
     *
     * Users can provide both encoded and decoded fragment characters.
     * Implementation ensure the correct encoding as outlined in getFragment().
     *
     * An empty fragment value is equivalent to removing the fragment.
     *
     * @param string $fragment The fragment to use with the new instance.
     *
     * @return self A new instance with the specified fragment.
     */
    public function withFragment($fragment)
    {
        $clone           = clone $this;
        $clone->fragment = $fragment;

        return $clone;
    }

    /**
     * Return the string representation as a URI reference.
     *
     * Depending on which components of the URI are present, the resulting
     * string is either a full URI or relative reference according to RFC 3986,
     * Section 4.1. The method concatenates the various components of the URI,
     * using the appropriate delimiters:
     *
     * - If a scheme is present, it is suffixed by ":".
     * - If an authority is present, it is prefixed by "//".
     * - The path can be concatenated without delimiters. But there are two
     *   cases where the path has to be adjusted to make the URI reference
     *   valid as PHP does not allow to throw an exception in __toString():
     *     - If the path is rootless and an authority is present, the path is
     *       be prefixed by "/".
     *     - If the path is starting with more than one "/" and no authority is
     *       present, the starting slashes are be reduced to one.
     * - If a query is present, it is prefixed by "?".
     * - If a fragment is present, it is prefixed by "#".
     *
     *         foo://example.com:8042/over/there?name=ferret#nose
     *         \_/   \______________/\_________/ \_________/ \__/
     *          |           |            |            |        |
     *       scheme     authority       path        query   fragment   
     *  
     * @see http://tools.ietf.org/html/rfc3986#section-4.1
     *
     * @return string
     */
    public function __toString()
    {
        $scheme    = $this->getScheme();
        $authority = $this->getAuthority();
        $path      = $this->getPath();
        $query     = $this->getQuery();
        $fragment  = $this->getFragment();

        $path = '/' . ltrim($path, '/');

        return ($scheme ? $scheme . ':' : '') . ($authority ? '//' . $authority : '')
            . $path . ($query ? '?' . $query : '') . ($fragment ? '#' . $fragment : '');
    }

    // ------------ PRIVATE METHODS

    /**
     * Check if Uri use a standard port.
     *
     * @return bool
     */
    private function isStandardPort()
    {
        return ($this->scheme === self::HTTP && $this->port === self::HTTP_PORT)
            || ($this->scheme === self::HTTPS && $this->port === self::HTTPS_PORT);
    }

    /**
     * Normalize scheme part of Uri.
     *
     * @param string $scheme Raw Uri scheme.
     *
     * @return string Normalized Uri
     *
     * @throws InvalidArgumentException If the Uri scheme is not a string.
     * @throws InvalidArgumentException If Uri scheme is not "", "https", or "http".
     */
    private function normalizeScheme($scheme)
    {
        if (!is_string($scheme) && !method_exists($scheme, '__toString')) {
            throw new InvalidArgumentException('Uri scheme must be a string');
        }

        $scheme = str_replace('://', '', strtolower((string) $scheme));
        if (!isset($this->validSchema[$scheme])) {
            throw new InvalidArgumentException('Uri scheme must be one of: "", "https", "http"');
        }

        return $scheme;
    }

    /**
     * Normalize path part of Uri and ensure it is properly encoded..
     *
     * @param string $path Raw Uri path.
     *
     * @return string Normalized Uri path
     *
     * @throws InvalidArgumentException If the Uri scheme is not a string.
     */
    private function normalizePath($path)
    {
        if (!is_string($path) && !method_exists($path, '__toString')) {
            throw new InvalidArgumentException('Uri path must be a string');
        }

        $path = $this->urlEncode($path);

        if (empty($path)) {
            return '';
        }

        if ($path[0] !== '/') {
            return $path;
        }

        // Ensure only one leading slash
        return '/' . ltrim($path, '/');
    }

    /**
     * Url encode 
     *
     * This method percent-encodes all reserved
     * characters in the provided path string. This method
     * will NOT double-encode characters that are already
     * percent-encoded.
     *
     * @param  string $path The raw uri path.
     *
     * @return string The RFC 3986 percent-encoded uri path.
     *
     * @link   http://www.faqs.org/rfcs/rfc3986.html
     */
    private function urlEncode($path)
    {
        return preg_replace_callback(
            '/(?:[^a-zA-Z0-9_\-\.~:@&=\+\$,\/;%]+|%(?![A-Fa-f0-9]{2}))/',
            function ($match) {
                return rawurlencode($match[0]);
            },
            $path
        );
    }
}


1		<?php
2		namespace Kambo\Http\Message;
3
4		// \Spl
5		use InvalidArgumentException;
6
7		// \Psr
8		use Psr\Http\Message\UriInterface;
9
10		// \Http\Message
11		use Kambo\Http\Message\Utils\UriValidator;
12
13		/**
14		* Value object representing a URI.
15		*
16		* This class represent URIs according to RFC 3986 and to
17		* provide methods for most common operations. Additional functionality for
18		* working with URIs can be provided on top of the object or externally.
19		* Its primary use is for HTTP requests, but may also be used in other
20		* contexts.
21		*
22		* Instances of the uri are considered immutable; all methods that
23		* change state retain the internal state of the current message and return
24		* an instance that contains the changed state.
25		*
26		* @link http://tools.ietf.org/html/rfc3986 (the URI specification)
27		*
28		* @package Kambo\Http\Message
29		* @author Bohuslav Simek <[email protected]>
30		* @license MIT
31		*/
32		class Uri implements UriInterface
33		{
34		const HTTP = 'http';
35		const HTTPS = 'https';
36
37		/**
38		* Http port
39		*
40		* @var integer
41		*/
42		const HTTP_PORT = 80;
43
44		/**
45		* Https port
46		*
47		* @var integer
48		*/
49		const HTTPS_PORT = 443;
50
51		/**
52		* Valid URI schemas
53		* Schema can be http, https or empty.
54		*
55		* @var array in format [ string "schema"=> boolean true (true valid), ... ]
56		*/
57		private $validSchema = [
58		'' => true,
59		self::HTTPS => true,
60		self::HTTP => true,
61		];
62
63		/**
64		* URL scheme of the URI.
65		* Default value is an empty string.
66		*
67		* @var string
68		*/
69		private $scheme = '';
70
71		/**
72		* Path component of the URI.
73		* Default value is an empty string.
74		*
75		* @var string
76		*/
77		private $path = '';
78
79		/**
80		* Query string of the URI.
81		* Default value is an empty string.
82		*
83		* @var string
84		*/
85		private $query = '';
86
87		/**
88		* Fragment component of the URI.
89		* Default value is an empty string.
90		*
91		* @var string
92		*/
93		private $fragment = '';
94
95		/**
96		* User part of the URI.
97		* Default value is an empty string.
98		*
99		* @var string
100		*/
101		private $user = '';
102
103		/**
104		* Password part of the URI.
105		* Default value is an empty string.
106		*
107		* @var string
108		*/
109		private $password = '';
110
111		/**
112		* Host component of the URI eg. foo.bar
113		*
114		* @var string
115		*/
116		private $host;
117
118		/**
119		* Port component of the URI eg. 443.
120		*
121		* @var integer
122		*/
123		private $port;
124
125		/**
126		* Instance of uri validator
127		*
128		* @var UriValidator
129		*/
130		private $validator;
131
132		/**
133		* Create new Uri.
134		*
135		* @param string $scheme Uri scheme.
136		* @param string $host Uri host.
137		* @param int $port Uri port number.
138		* @param string $path Uri path.
139		* @param string $query Uri query string.
140		* @param string $fragment Uri fragment.
141		* @param string $user Uri user.
142		* @param string $password Uri password.
143		*/
144	73	public function __construct(
145		$scheme,
146		$host,
147		$port = null,
148		$path = '/',
149		$query = '',
150		$fragment = '',
151		$user = '',
152		$password = ''
153		) {
154	73	$this->scheme = $this->normalizeScheme($scheme);
155	73	$this->host = strtolower($host);
156	73	$this->port = $port;
157	73	$this->path = $this->normalizePath($path);
158	72	$this->query = $this->urlEncode($query);
159	72	$this->fragment = $fragment;
160	72	$this->user = $user;
161	72	$this->password = $password;
162
163	72	$this->validator = new UriValidator();
164	72	}
165
166		/**
167		* Retrieve the scheme component of the URI.
168		*
169		* If no scheme is present, this method return an empty string.
170		*
171		* Underline implementation normalize schema to lowercase, as described in RFC 3986
172		* Section 3.1.
173		*
174		* The trailing ":" character is not part of the scheme and is not added.
175		*
176		* @see https://tools.ietf.org/html/rfc3986#section-3.1
177		*
178		* @return string The URI scheme.
179		*/
180	11	public function getScheme()
181		{
182	11	return $this->scheme;
183		}
184
185		/**
186		* Retrieve the authority component of the URI.
187		*
188		* If no authority information is present, this method returns an empty
189		* string.
190		*
191		* The authority syntax of the URI is:
192		*
193		* <pre>
194		* [user-info@]host[:port]
195		* </pre>
196		*
197		* If the port component is not set or is the standard port for the current
198		* scheme, it is not included.
199		*
200		* @see https://tools.ietf.org/html/rfc3986#section-3.2
201		*
202		* @return string The URI authority, in "[user-info@]host[:port]" format.
203		*/
204	7	public function getAuthority()
205		{
206	7	$port = $this->getPort();
207	7	$userInfo = $this->getUserInfo();
208
209	7	return ($userInfo ? $userInfo . '@' : '') . $this->getHost() . ($port ? ':' . $port : '');
210		}
211
212		/**
213		* Retrieve the user information component of the URI.
214		*
215		* If no user information is present, this method returns an empty string.
216		*
217		* If a user is present in the URI, this method return that value;
218		* additionally, if the password is also present, it will be appended to the
219		* user value, with a colon (":") separating the values.
220		*
221		* The trailing "@" character is not part of the user information and is not added.
222		*
223		* @return string The URI user information, in "username[:password]" format.
224		*/
225	13	public function getUserInfo()
226		{
227	13	$userInfo = '';
228	13	if (!empty($this->user)) {
229	7	$userInfo = $this->user;
230	7	if (!empty($this->password)) {
231	6	$userInfo .= ':' . $this->password;
232	6	}
233	7	}
234
235	13	return $userInfo;
236		}
237
238		/**
239		* Retrieve the host component of the URI.
240		*
241		* If no host is present, this method returns an empty string.
242		*
243		* Underline implementation normalize the host name to lowercase, as described in RFC 3986
244		* Section 3.2.2.
245		*
246		* @see http://tools.ietf.org/html/rfc3986#section-3.2.2
247		*
248		* @return string The URI host.
249		*/
250	21	public function getHost()
251		{
252	21	return $this->host;
253		}
254
255		/**
256		* Retrieve the port component of the URI.
257		*
258		* If a port is present, and it is non-standard for the current scheme,
259		* this method return it as an integer. If the port is the standard port
260		* used with the current scheme, this method return null.
261		*
262		* If no port is present, and no scheme is present, this method returns
263		* a null value.
264		*
265		* If no port is present, but a scheme is present, this method MAY return
266		* the standard port for that scheme, but SHOULD return null.
267		*
268		* @return null\|int The URI port.
269		*/
270	13	public function getPort()
271		{
272	13	return $this->isStandardPort() ? null : $this->port;
273		}
274
275		/**
276		* Retrieve the path component of the URI.
277		*
278		* The path can either be empty or absolute (starting with a slash) or
279		* rootless (not starting with a slash). Implementation support all
280		* three syntaxes.
281		*
282		* Normally, the empty path "" and absolute path "/" are considered equal as
283		* defined in RFC 7230 Section 2.7.3. But this method does not automatically
284		* do this normalization because in contexts with a trimmed base path, e.g.
285		* the front controller, this difference becomes significant. It's the task
286		* of the user to handle both "" and "/".
287		*
288		* The value returned is percent-encoded, and underline implementation ensure that
289		* the value is not double-encode. Encoded characters are defined in
290		* RFC 3986, Sections 2 and 3.4.
291		*
292		* As an example, if the value should include a slash ("/") not intended as
293		* delimiter between path segments, that value is passed in encoded
294		* form (e.g., "%2F") to the instance.
295		*
296		* @see https://tools.ietf.org/html/rfc3986#section-2
297		* @see https://tools.ietf.org/html/rfc3986#section-3.3
298		*
299		* @return string The URI path.
300		*/
301	19	public function getPath()
302		{
303	19	return $this->path;
304		}
305
306		/**
307		* Retrieve the query string of the URI.
308		*
309		* If no query string is present, this method returns an empty string.
310		*
311		* The leading "?" character is not part of the query and it is not added.
312		*
313		* The value returned is percent-encoded, and implementation ensure that
314		* the value is not double-encode. Encoded characters are defined in
315		* RFC 3986, Sections 2 and 3.4.
316		*
317		* As an example, if a value in a key/value pair of the query string should
318		* include an ampersand ("&") not intended as a delimiter between values,
319		* that value is passed in encoded form (e.g., "%26") to the instance.
320		*
321		* @see https://tools.ietf.org/html/rfc3986#section-2
322		* @see https://tools.ietf.org/html/rfc3986#section-3.4
323		*
324		* @return string The URI query string.
325		*/
326	20	public function getQuery()
327		{
328	20	return $this->query;
329		}
330
331
332		/**
333		* Retrieve the fragment component of the URI.
334		*
335		* If no fragment is present, this method returns an empty string.
336		*
337		* The leading "#" character is not part of the fragment and it is not
338		* added.
339		*
340		* The value returned is percent-encoded, and underline implementation ensure that
341		* the value is not double-encode. Encoded characters are defined in
342		* RFC 3986, Sections 2 and 3.4.
343		*
344		* @see https://tools.ietf.org/html/rfc3986#section-2
345		* @see https://tools.ietf.org/html/rfc3986#section-3.5
346		*
347		* @return string The URI fragment.
348		*/
349	11	public function getFragment()
350		{
351	11	return $this->fragment;
352		}
353
354		/**
355		* Return an instance with the specified scheme.
356		*
357		* This method retains the state of the current instance, and returns
358		* an instance that contains the specified scheme.
359		*
360		* Implementations support the schemes "http" and "https" case
361		* insensitively.
362		*
363		* An empty scheme is equivalent to removing the scheme.
364		*
365		* @param string $scheme The scheme to use with the new instance.
366		*
367		* @return self A new instance with the specified scheme.
368		*
369		* @throws \InvalidArgumentException for invalid or unsupported schemes.
370		*/
371	3	public function withScheme($scheme)
372		{
373	3	$clone = clone $this;
374	3	$clone->scheme = $this->normalizeScheme($scheme);
375
376	1	return $clone;
377		}
378
379		/**
380		* Return an instance with the specified user information.
381		*
382		* This method retains the state of the current instance, and returns
383		* an instance that contains the specified user information.
384		*
385		* Password is optional, but the user information include the
386		* user; an empty string for the user is equivalent to removing user
387		* information.
388		*
389		* @param string $user The user name to use for authority.
390		* @param null\|string $password The password associated with $user.
391		*
392		* @return self A new instance with the specified user information.
393		*/
394	2	public function withUserInfo($user, $password = null)
395		{
396	2	$clone = clone $this;
397	2	$clone->user = $user;
398	2	$clone->password = $password;
399
400	2	return $clone;
401		}
402
403		/**
404		* Return an instance with the specified host.
405		*
406		* This method retains the state of the current instance, and returns
407		* an instance that contains the specified host.
408		*
409		* An empty host value is equivalent to removing the host.
410		*
411		* @param string $host The hostname to use with the new instance.
412		*
413		* @return self A new instance with the specified host.
414		*
415		* @throws \InvalidArgumentException for invalid hostnames.
416		*/
417	1	public function withHost($host)
418		{
419	1	$clone = clone $this;
420	1	$clone->host = strtolower($host);
421
422	1	return $clone;
423		}
424
425		/**
426		* Return an instance with the specified port.
427		*
428		* This method retains the state of the current instance, and return
429		* an instance that contains the specified port.
430		*
431		* Method raise an exception for ports outside the
432		* established TCP and UDP port ranges.
433		*
434		* A null value provided for the port is equivalent to removing the port
435		* information.
436		*
437		* @param null\|int $port The port to use with the new instance; a null value
438		* removes the port information.
439		*
440		* @return self A new instance with the specified port.
441		*
442		* @throws \InvalidArgumentException for invalid ports.
443		*/
444	2	public function withPort($port)
445		{
446	2	$this->validator->validatePort($port);
447
448	1	$clone = clone $this;
449	1	$clone->port = $port;
450
451	1	return $clone;
452		}
453
454		/**
455		* Return an instance with the specified path.
456		*
457		* This method retains the state of the current instance, and return
458		* an instance that contains the specified path.
459		*
460		* The path can either be empty or absolute (starting with a slash) or
461		* rootless (not starting with a slash). Implementations support all
462		* three syntaxes.
463		*
464		* If the path is intended to be domain-relative rather than path relative then
465		* it must begin with a slash ("/"). Paths not starting with a slash ("/")
466		* are assumed to be relative to some base path known to the application or
467		* consumer.
468		*
469		* Users can provide both encoded and decoded path characters.
470		* Implementations ensure the correct encoding as outlined in getPath().
471		*
472		* @param string $path The path to use with the new instance.
473		*
474		* @return self A new instance with the specified path.
475		*
476		* @throws \InvalidArgumentException for invalid paths.
477		*/
478	4	public function withPath($path)
479		{
480	4	$this->validator->validatePath($path);
481
482	1	$clone = clone $this;
483	1	$clone->path = $this->urlEncode((string) $path);
484
485	1	return $clone;
486		}
487
488		/**
489		* Return an instance with the specified query string.
490		*
491		* This method retains the state of the current instance, and return
492		* an instance that contains the specified query string.
493		*
494		* Users can provide both encoded and decoded query characters.
495		* Implementation ensure the correct encoding as outlined in getQuery().
496		*
497		* An empty query string value is equivalent to removing the query string.
498		*
499		* @param string $query The query string to use with the new instance.
500		*
501		* @return self A new instance with the specified query string.
502		*
503		* @throws \InvalidArgumentException for invalid query strings.
504		*/
505	5	public function withQuery($query)
506		{
507	5	$this->validator->validateQuery($query);
508
509	2	$clone = clone $this;
510	2	$clone->query = $this->urlEncode((string) $query);
511
512	2	return $clone;
513		}
514
515		/**
516		* Return an instance with the specified URI fragment.
517		*
518		* This method retains the state of the current instance, and return
519		* an instance that contains the specified URI fragment.
520		*
521		* Users can provide both encoded and decoded fragment characters.
522		* Implementation ensure the correct encoding as outlined in getFragment().
523		*
524		* An empty fragment value is equivalent to removing the fragment.
525		*
526		* @param string $fragment The fragment to use with the new instance.
527		*
528		* @return self A new instance with the specified fragment.
529		*/
530	1	public function withFragment($fragment)
531		{
532	1	$clone = clone $this;
533	1	$clone->fragment = $fragment;
534
535	1	return $clone;
536		}
537
538		/**
539		* Return the string representation as a URI reference.
540		*
541		* Depending on which components of the URI are present, the resulting
542		* string is either a full URI or relative reference according to RFC 3986,
543		* Section 4.1. The method concatenates the various components of the URI,
544		* using the appropriate delimiters:
545		*
546		* - If a scheme is present, it is suffixed by ":".
547		* - If an authority is present, it is prefixed by "//".
548		* - The path can be concatenated without delimiters. But there are two
549		* cases where the path has to be adjusted to make the URI reference
550		* valid as PHP does not allow to throw an exception in __toString():
551		* - If the path is rootless and an authority is present, the path is
552		* be prefixed by "/".
553		* - If the path is starting with more than one "/" and no authority is
554		* present, the starting slashes are be reduced to one.
555		* - If a query is present, it is prefixed by "?".
556		* - If a fragment is present, it is prefixed by "#".
557		*
558		* foo://example.com:8042/over/there?name=ferret#nose
559		* \_/ \______________/\_________/ \_________/ \__/
560		* \| \| \| \| \|
561		* scheme authority path query fragment
562		*
563		* @see http://tools.ietf.org/html/rfc3986#section-4.1
564		*
565		* @return string
566		*/
567	7	public function __toString()
568		{
569	7	$scheme = $this->getScheme();
570	7	$authority = $this->getAuthority();
571	7	$path = $this->getPath();
572	7	$query = $this->getQuery();
573	7	$fragment = $this->getFragment();
574
575	7	$path = '/' . ltrim($path, '/');
576
577	7	return ($scheme ? $scheme . ':' : '') . ($authority ? '//' . $authority : '')
578	7	. $path . ($query ? '?' . $query : '') . ($fragment ? '#' . $fragment : '');
579		}
580
581		// ------------ PRIVATE METHODS
582
583		/**
584		* Check if Uri use a standard port.
585		*
586		* @return bool
587		*/
588	13	private function isStandardPort()
589		{
590	13	return ($this->scheme === self::HTTP && $this->port === self::HTTP_PORT)
591	13	\|\| ($this->scheme === self::HTTPS && $this->port === self::HTTPS_PORT);
592		}
593
594		/**
595		* Normalize scheme part of Uri.
596		*
597		* @param string $scheme Raw Uri scheme.
598		*
599		* @return string Normalized Uri
600		*
601		* @throws InvalidArgumentException If the Uri scheme is not a string.
602		* @throws InvalidArgumentException If Uri scheme is not "", "https", or "http".
603		*/
604	73	private function normalizeScheme($scheme)
605		{
606	73	if (!is_string($scheme) && !method_exists($scheme, '__toString')) {
607	1	throw new InvalidArgumentException('Uri scheme must be a string');
608		}
609
610	73	$scheme = str_replace('://', '', strtolower((string) $scheme));
611	73	if (!isset($this->validSchema[$scheme])) {
612	1	throw new InvalidArgumentException('Uri scheme must be one of: "", "https", "http"');
613		}
614
615	73	return $scheme;
616		}
617
618		/**
619		* Normalize path part of Uri and ensure it is properly encoded..
620		*
621		* @param string $path Raw Uri path.
622		*
623		* @return string Normalized Uri path
624		*
625		* @throws InvalidArgumentException If the Uri scheme is not a string.
626		*/
627	73	private function normalizePath($path)
628		{
629	73	if (!is_string($path) && !method_exists($path, '__toString')) {
630	1	throw new InvalidArgumentException('Uri path must be a string');
631		}
632
633	72	$path = $this->urlEncode($path);
634
635	72	if (empty($path)) {
636	1	return '';
637		}
638
639	71	if ($path[0] !== '/') {
640	1	return $path;
641		}
642
643		// Ensure only one leading slash
644	70	return '/' . ltrim($path, '/');
645		}
646
647		/**
648		* Url encode
649		*
650		* This method percent-encodes all reserved
651		* characters in the provided path string. This method
652		* will NOT double-encode characters that are already
653		* percent-encoded.
654		*
655		* @param string $path The raw uri path.
656		*
657		* @return string The RFC 3986 percent-encoded uri path.
658		*
659		* @link http://www.faqs.org/rfcs/rfc3986.html
660		*/
661	72	private function urlEncode($path)
662		{
663	72	return preg_replace_callback(
664	72	'/(?:[^a-zA-Z0-9_\-\.~:@&=\+\$,\/;%]+\|%(?![A-Fa-f0-9]{2}))/',
665	72	function ($match) {
666	1	return rawurlencode($match[0]);
667	72	},
668		$path
669	72	);
670		}
671		}
672

kambo-1st / HttpMessage

Uri::normalizeScheme() A last analyzed 2018-01-24 22:49 UTC

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Uri::normalizeScheme() A
last analyzed 2018-01-24 22:49 UTC