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1<?php
2/**
3 * Pop PHP Framework (http://www.popphp.org/)
4 *
5 * @link       https://github.com/popphp/popphp-framework
6 * @author     Nick Sagona, III <dev@nolainteractive.com>
7 * @copyright  Copyright (c) 2009-2024 NOLA Interactive, LLC. (http://www.nolainteractive.com)
8 * @license    http://www.popphp.org/license     New BSD License
9 */
10
11/**
12 * @namespace
13 */
14namespace Pop\Auth;
15
16/**
17 * File auth class
18 *
19 * @category   Pop
20 * @package    Pop\Auth
21 * @author     Nick Sagona, III <dev@nolainteractive.com>
22 * @copyright  Copyright (c) 2009-2024 NOLA Interactive, LLC. (http://www.nolainteractive.com)
23 * @license    http://www.popphp.org/license     New BSD License
24 * @version    4.0.0
25 */
26class File extends AbstractAuth
27{
28
29    /**
30     * Auth file
31     * @var ?string
32     */
33    protected ?string $filename = null;
34
35    /**
36     * Auth realm
37     * @var ?string
38     */
39    protected ?string $realm = null;
40
41    /**
42     * Auth file delimiter
43     * @var string
44     */
45    protected string $delimiter = ':';
46
47    /**
48     * Constructor
49     *
50     * Instantiate the File auth adapter object
51     *
52     * @param  string  $filename
53     * @param  ?string $realm
54     * @param  string  $delimiter
55     * @throws Exception
56     */
57    public function __construct(string $filename, ?string $realm = null, string $delimiter = ':')
58    {
59        $this->setFilename($filename);
60        if (!empty($realm)) {
61            $this->setRealm($realm);
62        }
63        if (!empty($delimiter)) {
64            $this->setDelimiter($delimiter);
65        }
66    }
67
68    /**
69     * Get the auth filename
70     *
71     * @return string
72     */
73    public function getFilename(): string
74    {
75        return $this->filename;
76    }
77
78    /**
79     * Get the auth realm
80     *
81     * @return ?string
82     */
83    public function getRealm(): ?string
84    {
85        return $this->realm;
86    }
87
88    /**
89     * Get the auth file delimiter
90     *
91     * @return string
92     */
93    public function getDelimiter(): string
94    {
95        return $this->delimiter;
96    }
97
98    /**
99     * Set the auth filename
100     *
101     * @param  string $filename
102     * @throws Exception
103     * @return File
104     */
105    public function setFilename(string $filename): File
106    {
107        if (!file_exists($filename)) {
108            throw new Exception("The access file '" . $filename . "' does not exist.");
109        }
110        $this->filename = $filename;
111        return $this;
112    }
113
114    /**
115     * Set the auth realm
116     *
117     * @param  string $realm
118     * @return File
119     */
120    public function setRealm(string $realm): File
121    {
122        $this->realm = $realm;
123        return $this;
124    }
125
126    /**
127     * Set the auth file delimiter
128     *
129     * @param  string $delimiter
130     * @return File
131     */
132    public function setDelimiter(string $delimiter): File
133    {
134        $this->delimiter = $delimiter;
135        return $this;
136    }
137
138    /**
139     * Method to authenticate
140     *
141     * @param  string $username
142     * @param  string $password
143     * @return int
144     */
145    public function authenticate(string $username, string $password): int
146    {
147        $this->setUsername($username);
148        $this->setPassword($password);
149
150        $lines        = file($this->filename);
151        $hash         = null;
152        $this->result = 0;
153
154        foreach ($lines as $line) {
155            $line = trim($line);
156            $user = explode($this->delimiter, $line);
157            if (isset($user[0]) && ($user[0] == $this->username)) {
158                if (($this->realm !== null) && (count($user) == 3)) {
159                    if (($this->username == $user[0]) && ($user[1] == $this->realm)) {
160                        $hash = $user[2];
161                        break;
162                    }
163                } else if (count($user) == 2) {
164                    if ($this->username == $user[0]) {
165                        $hash = $user[1];
166                        break;
167                    }
168                }
169            }
170        }
171
172        if (($this->password !== null) && ($hash !== null)) {
173            $this->result = (int)$this->verify($this->password, $hash);
174        }
175
176        return $this->result;
177    }
178
179}