summaryrefslogtreecommitdiffstats
path: root/3rdparty/ZendFeed/Uri.php
blob: 940bce11ab0f00608d2cb29581f91ef0b1a8ce7a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
<?php
/**
 * Zend Framework (http://framework.zend.com/)
 *
 * @link      http://github.com/zendframework/zf2 for the canonical source repository
 * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
 * @license   http://framework.zend.com/license/new-bsd New BSD License
 */

namespace Zend\Feed;

class Uri
{
    /**
     * @var string
     */
    protected $fragment;

    /**
     * @var string
     */
    protected $host;

    /**
     * @var string
     */
    protected $pass;

    /**
     * @var string
     */
    protected $path;

    /**
     * @var int
     */
    protected $port;

    /**
     * @var string
     */
    protected $query;

    /**
     * @var string
     */
    protected $scheme;

    /**
     * @var string
     */
    protected $user;

    /**
     * @var bool
     */
    protected $valid;

    /**
     * Valid schemes
     */
    protected $validSchemes = array(
        'http',
        'https',
        'file',
    );

    /**
     * @param  string $uri
     */
    public function __construct($uri)
    {
        $parsed = parse_url($uri);
        if (false === $parsed) {
            $this->valid = false;
            return;
        }

        $this->scheme   = isset($parsed['scheme'])   ? $parsed['scheme']   : null;
        $this->host     = isset($parsed['host'])     ? $parsed['host']     : null;
        $this->port     = isset($parsed['port'])     ? $parsed['port']     : null;
        $this->user     = isset($parsed['user'])     ? $parsed['user']     : null;
        $this->pass     = isset($parsed['pass'])     ? $parsed['pass']     : null;
        $this->path     = isset($parsed['path'])     ? $parsed['path']     : null;
        $this->query    = isset($parsed['query'])    ? $parsed['query']    : null;
        $this->fragment = isset($parsed['fragment']) ? $parsed['fragment'] : null;
    }

    /**
     * Create an instance
     *
     * Useful for chained validations
     *
     * @param  string $uri
     * @return self
     */
    public static function factory($uri)
    {
        return new static($uri);
    }

    /**
     * Retrieve the host
     *
     * @return string
     */
    public function getHost()
    {
        return $this->host;
    }

    /**
     * Retrieve the URI path
     *
     * @return string
     */
    public function getPath()
    {
        return $this->path;
    }

    /**
     * Retrieve the scheme
     *
     * @return string
     */
    public function getScheme()
    {
        return $this->scheme;
    }

    /**
     * Is the URI valid?
     *
     * @return bool
     */
    public function isValid()
    {
        if (false === $this->valid) {
            return false;
        }

        if ($this->scheme && !in_array($this->scheme, $this->validSchemes)) {
            return false;
        }

        if ($this->host) {
            if ($this->path && substr($this->path, 0, 1) != '/') {
                return false;
            }
            return true;
        }

        // no host, but user and/or port... what?
        if ($this->user || $this->port) {
            return false;
        }

        if ($this->path) {
            // Check path-only (no host) URI
            if (substr($this->path, 0, 2) == '//') {
                return false;
            }
            return true;
        }

        if (! ($this->query || $this->fragment)) {
            // No host, path, query or fragment - this is not a valid URI
            return false;
        }

        return true;
    }

    /**
     * Is the URI absolute?
     *
     * @return bool
     */
    public function isAbsolute()
    {
        return ($this->scheme !== null);
    }
}