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e9631169 S |
1 | <?php |
2 | /** | |
3 | * @author Jan Altensen (Stricted) | |
4 | * @license GNU Lesser General Public License <http://opensource.org/licenses/lgpl-license.php> | |
5 | * @copyright 2015 Jan Altensen (Stricted) | |
6 | */ | |
7 | trait Login { | |
8 | /** | |
9 | * password-challenge | |
10 | * @var string | |
11 | */ | |
12 | private $challenge = ''; | |
13 | ||
e9631169 S |
14 | /** |
15 | * derivedk cookie | |
16 | * @var string | |
17 | */ | |
18 | private $derivedk = ''; | |
19 | ||
20 | /** | |
21 | * login into the router with the given password | |
22 | * | |
23 | * @param string $password | |
24 | * @return boolean | |
25 | */ | |
26 | public function login ($password) { | |
27 | $this->challenge = $this->getChallenge(); | |
28 | ||
29 | $path = 'data/Login.json'; | |
30 | $this->hash = hash('sha256', $this->challenge.':'.$password); | |
31 | $fields = array('csrf_token' => 'nulltoken', 'showpw' => 0, 'password' => $this->hash); | |
32 | $data = $this->sentRequest($path, $fields); | |
33 | $json = $this->getValues($data['body']); | |
34 | ||
35 | if (isset($json['login']) && $json['login'] == 'success') { | |
35a39175 S |
36 | $this->cookie = 'challengev='.$this->challenge.'; '; |
37 | $this->cookie .= $this->getCookie($data); | |
e9631169 S |
38 | |
39 | $this->derivedk = $this->getDerviedk($password); | |
40 | ||
41 | // get the csrf_token | |
42 | $this->token = $this->getToken(); | |
43 | ||
44 | if ($this->checkLogin(false) === true) { | |
45 | return true; | |
46 | } | |
47 | } | |
48 | ||
49 | return false; | |
50 | } | |
51 | ||
52 | /** | |
53 | * Requests the password-challenge from the router. | |
54 | */ | |
55 | private function getChallenge () { | |
56 | $path = 'data/Login.json'; | |
57 | $fields = array('csrf_token' => 'nulltoken', 'showpw' => 0, 'challengev' => 'null'); | |
58 | $data = $this->sentRequest($path, $fields); | |
59 | $data = $this->getValues($data['body']); | |
35a39175 | 60 | print_r($data); |
e9631169 S |
61 | if (isset($data['challengev']) && !empty($data['challengev'])) { |
62 | return $data['challengev']; | |
63 | } | |
64 | else { | |
65 | throw new RouterException('unable to get the challenge from the router'); | |
66 | } | |
67 | } | |
68 | ||
69 | /** | |
70 | * check if we are logged in | |
71 | * | |
72 | * @param boolean $exception | |
73 | * @return boolean | |
74 | */ | |
75 | public function checkLogin ($exception = true) { | |
76 | // check if challenge or session is empty | |
77 | if (empty($this->challenge) || empty($this->cookie)) { | |
78 | if ($exception === true) { | |
79 | throw new RouterException('you musst be logged in to use this method'); | |
80 | } | |
81 | ||
82 | return false; | |
83 | } | |
84 | ||
85 | $path = 'data/SecureStatus.json'; | |
86 | $fields = array(); | |
87 | $data = $this->sentRequest($path, $fields, true); | |
88 | $data = $this->getValues($data['body']); | |
89 | ||
90 | if ($data['loginstate'] != 1) { | |
91 | if ($exception === true) { | |
92 | throw new RouterException('you musst be logged in to use this method'); | |
93 | } | |
94 | ||
95 | return false; | |
96 | } | |
97 | ||
98 | return true; | |
99 | } | |
100 | ||
101 | /** | |
102 | * logout | |
103 | * | |
104 | * @return boolean | |
105 | */ | |
106 | public function logout () { | |
107 | $this->checkLogin(); | |
108 | ||
109 | $path = 'data/Login.json'; | |
110 | $fields = array('csrf_token' => $this->token, 'logout' => 'byby'); | |
111 | $data = $this->sentRequest($path, $fields, true); | |
112 | $data = $this->getValues($data['body']); | |
113 | if ((isset($data['status']) && $data['status'] == 'ok') && $this->checkLogin(false) === false) { | |
114 | // reset challenge and session | |
115 | $this->challenge = ''; | |
116 | $this->cookie = ''; | |
117 | $this->token = ''; | |
118 | $this->derivedk = ''; | |
119 | ||
120 | return true; | |
121 | } | |
122 | ||
123 | return false; | |
124 | } | |
125 | ||
126 | /** | |
127 | * get the csrf_token | |
128 | * | |
129 | * @return string | |
130 | */ | |
35a39175 | 131 | protected function getToken () { |
e9631169 S |
132 | $this->checkLogin(); |
133 | ||
134 | $path = 'html/content/overview/index.html'; | |
135 | $fields = array(); | |
136 | $data = $this->sentRequest($path, $fields, true); | |
137 | ||
138 | $a = explode('csrf_token = "', $data['body']); | |
139 | $a = explode('";', $a[1]); | |
140 | ||
141 | if (isset($a[0]) && !empty($a[0])) { | |
142 | return $a[0]; | |
143 | } | |
144 | else { | |
145 | throw new RouterException('unable to get csrf_token'); | |
146 | } | |
147 | } | |
148 | ||
149 | /** | |
150 | * calculate the derivedk | |
151 | * | |
152 | * @param string $password | |
153 | * @return string | |
154 | */ | |
155 | private function getDerviedk ($password) { | |
156 | $derivedk = ''; | |
157 | ||
158 | // calculate derivedk | |
159 | if (!function_exists('hash_pbkdf2')) { | |
160 | $pbkdf2 = new CryptLib\Key\Derivation\PBKDF\PBKDF2(array('hash' => 'sha1')); | |
161 | $derivedk = bin2hex($pbkdf2->derive(hash('sha256', $password), substr($this->challenge, 0, 16), 1000, 32)); | |
162 | $derivedk = substr($derivedk, 0, 32); | |
163 | } | |
164 | else { | |
165 | $derivedk = hash_pbkdf2('sha1', hash('sha256', $password), substr($this->challenge, 0, 16), 1000, 32); | |
166 | } | |
167 | ||
168 | if (empty($derivedk)) { | |
169 | throw new RouterException('unable to calculate derivedk'); | |
170 | } | |
171 | ||
172 | return $derivedk; | |
173 | } | |
174 | ||
175 | /** | |
176 | * get cookie from header data | |
177 | * | |
178 | * @param array $data | |
179 | * @return string | |
180 | */ | |
181 | private function getCookie ($data) { | |
182 | $cookie = ''; | |
183 | if (isset($data['header']['Set-Cookie']) && !empty($data['header']['Set-Cookie'])) { | |
184 | preg_match('/^.*(SessionID_R3=[a-z0-9]*).*/i', $data['header']['Set-Cookie'], $match); | |
185 | if (isset($match[1]) && !empty($match[1])) { | |
186 | $cookie = $match[1]; | |
187 | } | |
188 | } | |
189 | ||
190 | if (empty($cookie)) { | |
191 | throw new RouterException('unable to get the session cookie from the router'); | |
192 | } | |
193 | ||
194 | return $cookie; | |
195 | } | |
196 | } |