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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> | |
dd76f288 | 5 | * @copyright 2015-2016 Jan Altensen (Stricted) |
e9631169 S |
6 | */ |
7 | trait Login { | |
8 | /** | |
9 | * password-challenge | |
10 | * @var string | |
11 | */ | |
12 | private $challenge = ''; | |
13 | ||
14 | /** | |
15 | * csrf_token | |
16 | * @var string | |
17 | */ | |
18 | private $token = ''; | |
19 | ||
20 | /** | |
21 | * hashed password | |
22 | * @var string | |
23 | */ | |
24 | private $hash = ''; | |
25 | ||
26 | /** | |
27 | * session cookie | |
28 | * @var string | |
29 | */ | |
30 | private $cookie = ''; | |
31 | ||
32 | /** | |
33 | * derivedk cookie | |
34 | * @var string | |
35 | */ | |
36 | private $derivedk = ''; | |
37 | ||
38 | /** | |
39 | * login into the router with the given password | |
40 | * | |
41 | * @param string $password | |
42 | * @return boolean | |
43 | */ | |
44 | public function login ($password) { | |
45 | $this->challenge = $this->getChallenge(); | |
46 | ||
47 | $path = 'data/Login.json'; | |
48 | $this->hash = hash('sha256', $this->challenge.':'.$password); | |
5575d017 | 49 | $fields = array('csrf_token' => 'nulltoken', "challengev" => $this->challenge, 'showpw' => 0, 'password' => $this->hash); |
e94573dd | 50 | $data = $this->sendRequest($path, $fields); |
e9631169 | 51 | $json = $this->getValues($data['body']); |
a2bacc49 | 52 | if (!in_array("challenge", $json)) { |
5575d017 S |
53 | $fields = array('csrf_token' => 'nulltoken', 'showpw' => 0, 'password' => $this->hash); |
54 | $data = $this->sendRequest($path, $fields); | |
55 | $json = $this->getValues($data['body']); | |
56 | } | |
57 | ||
e9631169 S |
58 | if (isset($json['login']) && $json['login'] == 'success') { |
59 | $this->cookie = $this->getCookie($data); | |
60 | ||
61 | $this->derivedk = $this->getDerviedk($password); | |
62 | ||
63 | // get the csrf_token | |
64 | $this->token = $this->getToken(); | |
65 | ||
66 | if ($this->checkLogin(false) === true) { | |
67 | return true; | |
68 | } | |
69 | } | |
70 | ||
71 | return false; | |
72 | } | |
73 | ||
74 | /** | |
75 | * Requests the password-challenge from the router. | |
76 | */ | |
5575d017 | 77 | private function getChallenge_old () { |
e9631169 S |
78 | $path = 'data/Login.json'; |
79 | $fields = array('csrf_token' => 'nulltoken', 'showpw' => 0, 'challengev' => 'null'); | |
e94573dd | 80 | $data = $this->sendRequest($path, $fields); |
e9631169 S |
81 | $data = $this->getValues($data['body']); |
82 | ||
83 | if (isset($data['challengev']) && !empty($data['challengev'])) { | |
84 | return $data['challengev']; | |
85 | } | |
86 | else { | |
87 | throw new RouterException('unable to get the challenge from the router'); | |
88 | } | |
89 | } | |
90 | ||
5575d017 S |
91 | /** |
92 | * Requests the password-challenge from the router. | |
93 | */ | |
94 | private function getChallenge () { | |
a2bacc49 | 95 | $path = 'html/login/index.html'; |
5575d017 | 96 | $fields = array(); |
a2bacc49 | 97 | $data = $this->sendRequest($path, $fields); |
5575d017 S |
98 | $a = explode('challenge = "', $data['body']); |
99 | ||
100 | if (!isset($a[1])) { | |
fad29c09 | 101 | return $this->getChallenge_old(); |
5575d017 S |
102 | } |
103 | ||
104 | $a = explode('";', $a[1]); | |
105 | ||
106 | if (isset($a[0]) && !empty($a[0])) { | |
107 | return $a[0]; | |
108 | } | |
109 | else { | |
110 | throw new RouterException('unable to get the challenge from the router'); | |
111 | } | |
112 | } | |
113 | ||
e9631169 S |
114 | /** |
115 | * check if we are logged in | |
116 | * | |
117 | * @param boolean $exception | |
118 | * @return boolean | |
119 | */ | |
120 | public function checkLogin ($exception = true) { | |
121 | // check if challenge or session is empty | |
122 | if (empty($this->challenge) || empty($this->cookie)) { | |
123 | if ($exception === true) { | |
124 | throw new RouterException('you musst be logged in to use this method'); | |
125 | } | |
126 | ||
127 | return false; | |
128 | } | |
129 | ||
130 | $path = 'data/SecureStatus.json'; | |
131 | $fields = array(); | |
e94573dd | 132 | $data = $this->sendRequest($path, $fields, true); |
e9631169 S |
133 | $data = $this->getValues($data['body']); |
134 | ||
135 | if ($data['loginstate'] != 1) { | |
136 | if ($exception === true) { | |
137 | throw new RouterException('you musst be logged in to use this method'); | |
138 | } | |
139 | ||
140 | return false; | |
141 | } | |
142 | ||
143 | return true; | |
144 | } | |
145 | ||
146 | /** | |
147 | * logout | |
148 | * | |
149 | * @return boolean | |
150 | */ | |
151 | public function logout () { | |
152 | $this->checkLogin(); | |
153 | ||
154 | $path = 'data/Login.json'; | |
155 | $fields = array('csrf_token' => $this->token, 'logout' => 'byby'); | |
e94573dd | 156 | $data = $this->sendRequest($path, $fields, true); |
e9631169 S |
157 | $data = $this->getValues($data['body']); |
158 | if ((isset($data['status']) && $data['status'] == 'ok') && $this->checkLogin(false) === false) { | |
159 | // reset challenge and session | |
160 | $this->challenge = ''; | |
161 | $this->cookie = ''; | |
162 | $this->token = ''; | |
163 | $this->derivedk = ''; | |
164 | ||
165 | return true; | |
166 | } | |
167 | ||
168 | return false; | |
169 | } | |
170 | ||
171 | /** | |
172 | * get the csrf_token | |
173 | * | |
174 | * @return string | |
175 | */ | |
176 | private function getToken () { | |
177 | $this->checkLogin(); | |
178 | ||
179 | $path = 'html/content/overview/index.html'; | |
180 | $fields = array(); | |
e94573dd | 181 | $data = $this->sendRequest($path, $fields, true); |
e9631169 S |
182 | |
183 | $a = explode('csrf_token = "', $data['body']); | |
184 | $a = explode('";', $a[1]); | |
185 | ||
186 | if (isset($a[0]) && !empty($a[0])) { | |
187 | return $a[0]; | |
188 | } | |
189 | else { | |
190 | throw new RouterException('unable to get csrf_token'); | |
191 | } | |
192 | } | |
193 | ||
194 | /** | |
195 | * calculate the derivedk | |
196 | * | |
197 | * @param string $password | |
198 | * @return string | |
199 | */ | |
200 | private function getDerviedk ($password) { | |
201 | $derivedk = ''; | |
202 | ||
203 | // calculate derivedk | |
204 | if (!function_exists('hash_pbkdf2')) { | |
205 | $pbkdf2 = new CryptLib\Key\Derivation\PBKDF\PBKDF2(array('hash' => 'sha1')); | |
c1827596 | 206 | $derivedk = bin2hex($pbkdf2->derive(hash('sha256', $password), substr($this->challenge, 0, 16), 1000, 16)); |
e9631169 S |
207 | } |
208 | else { | |
209 | $derivedk = hash_pbkdf2('sha1', hash('sha256', $password), substr($this->challenge, 0, 16), 1000, 32); | |
210 | } | |
211 | ||
212 | if (empty($derivedk)) { | |
213 | throw new RouterException('unable to calculate derivedk'); | |
214 | } | |
215 | ||
216 | return $derivedk; | |
217 | } | |
218 | ||
219 | /** | |
220 | * get cookie from header data | |
221 | * | |
222 | * @param array $data | |
223 | * @return string | |
224 | */ | |
225 | private function getCookie ($data) { | |
226 | $cookie = ''; | |
227 | if (isset($data['header']['Set-Cookie']) && !empty($data['header']['Set-Cookie'])) { | |
228 | preg_match('/^.*(SessionID_R3=[a-z0-9]*).*/i', $data['header']['Set-Cookie'], $match); | |
229 | if (isset($match[1]) && !empty($match[1])) { | |
230 | $cookie = $match[1]; | |
231 | } | |
232 | } | |
233 | ||
234 | if (empty($cookie)) { | |
235 | throw new RouterException('unable to get the session cookie from the router'); | |
236 | } | |
237 | ||
238 | return $cookie; | |
239 | } | |
240 | } |