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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']); |
36484600 | 52 | if (array_key_exists("challengev", $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 | } | |
e9631169 S |
57 | if (isset($json['login']) && $json['login'] == 'success') { |
58 | $this->cookie = $this->getCookie($data); | |
59 | ||
60 | $this->derivedk = $this->getDerviedk($password); | |
61 | ||
62 | // get the csrf_token | |
63 | $this->token = $this->getToken(); | |
64 | ||
65 | if ($this->checkLogin(false) === true) { | |
66 | return true; | |
67 | } | |
68 | } | |
69 | ||
70 | return false; | |
71 | } | |
72 | ||
73 | /** | |
74 | * Requests the password-challenge from the router. | |
75 | */ | |
5575d017 | 76 | private function getChallenge_old () { |
e9631169 S |
77 | $path = 'data/Login.json'; |
78 | $fields = array('csrf_token' => 'nulltoken', 'showpw' => 0, 'challengev' => 'null'); | |
e94573dd | 79 | $data = $this->sendRequest($path, $fields); |
e9631169 S |
80 | $data = $this->getValues($data['body']); |
81 | ||
82 | if (isset($data['challengev']) && !empty($data['challengev'])) { | |
83 | return $data['challengev']; | |
84 | } | |
85 | else { | |
86 | throw new RouterException('unable to get the challenge from the router'); | |
87 | } | |
88 | } | |
89 | ||
5575d017 S |
90 | /** |
91 | * Requests the password-challenge from the router. | |
92 | */ | |
93 | private function getChallenge () { | |
a2bacc49 | 94 | $path = 'html/login/index.html'; |
5575d017 | 95 | $fields = array(); |
a2bacc49 | 96 | $data = $this->sendRequest($path, $fields); |
5575d017 S |
97 | $a = explode('challenge = "', $data['body']); |
98 | ||
99 | if (!isset($a[1])) { | |
fad29c09 | 100 | return $this->getChallenge_old(); |
5575d017 S |
101 | } |
102 | ||
103 | $a = explode('";', $a[1]); | |
104 | ||
105 | if (isset($a[0]) && !empty($a[0])) { | |
106 | return $a[0]; | |
107 | } | |
108 | else { | |
109 | throw new RouterException('unable to get the challenge from the router'); | |
110 | } | |
111 | } | |
112 | ||
e9631169 S |
113 | /** |
114 | * check if we are logged in | |
115 | * | |
116 | * @param boolean $exception | |
117 | * @return boolean | |
118 | */ | |
119 | public function checkLogin ($exception = true) { | |
120 | // check if challenge or session is empty | |
121 | if (empty($this->challenge) || empty($this->cookie)) { | |
122 | if ($exception === true) { | |
123 | throw new RouterException('you musst be logged in to use this method'); | |
124 | } | |
125 | ||
126 | return false; | |
127 | } | |
128 | ||
129 | $path = 'data/SecureStatus.json'; | |
130 | $fields = array(); | |
e94573dd | 131 | $data = $this->sendRequest($path, $fields, true); |
e9631169 S |
132 | $data = $this->getValues($data['body']); |
133 | ||
134 | if ($data['loginstate'] != 1) { | |
135 | if ($exception === true) { | |
136 | throw new RouterException('you musst be logged in to use this method'); | |
137 | } | |
138 | ||
139 | return false; | |
140 | } | |
141 | ||
142 | return true; | |
143 | } | |
144 | ||
145 | /** | |
146 | * logout | |
147 | * | |
148 | * @return boolean | |
149 | */ | |
150 | public function logout () { | |
151 | $this->checkLogin(); | |
152 | ||
153 | $path = 'data/Login.json'; | |
154 | $fields = array('csrf_token' => $this->token, 'logout' => 'byby'); | |
e94573dd | 155 | $data = $this->sendRequest($path, $fields, true); |
e9631169 S |
156 | $data = $this->getValues($data['body']); |
157 | if ((isset($data['status']) && $data['status'] == 'ok') && $this->checkLogin(false) === false) { | |
158 | // reset challenge and session | |
159 | $this->challenge = ''; | |
160 | $this->cookie = ''; | |
161 | $this->token = ''; | |
162 | $this->derivedk = ''; | |
163 | ||
164 | return true; | |
165 | } | |
166 | ||
167 | return false; | |
168 | } | |
169 | ||
170 | /** | |
171 | * get the csrf_token | |
172 | * | |
173 | * @return string | |
174 | */ | |
175 | private function getToken () { | |
176 | $this->checkLogin(); | |
177 | ||
178 | $path = 'html/content/overview/index.html'; | |
179 | $fields = array(); | |
e94573dd | 180 | $data = $this->sendRequest($path, $fields, true); |
e9631169 S |
181 | |
182 | $a = explode('csrf_token = "', $data['body']); | |
183 | $a = explode('";', $a[1]); | |
184 | ||
185 | if (isset($a[0]) && !empty($a[0])) { | |
186 | return $a[0]; | |
187 | } | |
188 | else { | |
189 | throw new RouterException('unable to get csrf_token'); | |
190 | } | |
191 | } | |
192 | ||
193 | /** | |
194 | * calculate the derivedk | |
195 | * | |
196 | * @param string $password | |
197 | * @return string | |
198 | */ | |
199 | private function getDerviedk ($password) { | |
200 | $derivedk = ''; | |
201 | ||
202 | // calculate derivedk | |
203 | if (!function_exists('hash_pbkdf2')) { | |
204 | $pbkdf2 = new CryptLib\Key\Derivation\PBKDF\PBKDF2(array('hash' => 'sha1')); | |
c1827596 | 205 | $derivedk = bin2hex($pbkdf2->derive(hash('sha256', $password), substr($this->challenge, 0, 16), 1000, 16)); |
e9631169 S |
206 | } |
207 | else { | |
208 | $derivedk = hash_pbkdf2('sha1', hash('sha256', $password), substr($this->challenge, 0, 16), 1000, 32); | |
209 | } | |
210 | ||
211 | if (empty($derivedk)) { | |
212 | throw new RouterException('unable to calculate derivedk'); | |
213 | } | |
214 | ||
215 | return $derivedk; | |
216 | } | |
217 | ||
218 | /** | |
219 | * get cookie from header data | |
220 | * | |
221 | * @param array $data | |
222 | * @return string | |
223 | */ | |
224 | private function getCookie ($data) { | |
225 | $cookie = ''; | |
226 | if (isset($data['header']['Set-Cookie']) && !empty($data['header']['Set-Cookie'])) { | |
227 | preg_match('/^.*(SessionID_R3=[a-z0-9]*).*/i', $data['header']['Set-Cookie'], $match); | |
228 | if (isset($match[1]) && !empty($match[1])) { | |
229 | $cookie = $match[1]; | |
230 | } | |
231 | } | |
232 | ||
233 | if (empty($cookie)) { | |
234 | throw new RouterException('unable to get the session cookie from the router'); | |
235 | } | |
236 | ||
237 | return $cookie; | |
238 | } | |
239 | } |