Total Complexity | 56 |
Total Lines | 554 |
Duplicated Lines | 0 % |
Changes | 0 |
Complex classes like OAuth2 often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use OAuth2, and based on these observations, apply Extract Interface, too.
1 | <?php |
||
23 | class OAuth2 { |
||
24 | use |
||
25 | Accessor, |
||
26 | Singleton; |
||
27 | /** |
||
28 | * @var bool |
||
29 | */ |
||
30 | protected $automatic_prolongation; |
||
31 | /** |
||
32 | * @var int |
||
33 | */ |
||
34 | protected $expiration; |
||
35 | /** |
||
36 | * @var Prefix |
||
37 | */ |
||
38 | protected $cache; |
||
39 | public function construct () { |
||
40 | $this->cache = new Prefix('OAuth2'); |
||
41 | $module_data = Config::instance()->module('OAuth2'); |
||
42 | $this->automatic_prolongation = $module_data->automatic_prolongation; |
||
|
|||
43 | $this->expiration = $module_data->expiration; |
||
44 | } |
||
45 | /** |
||
46 | * Returns database index |
||
47 | * |
||
48 | * @return int |
||
49 | */ |
||
50 | protected function cdb () { |
||
51 | return Config::instance()->module('OAuth2')->db('oauth2'); |
||
52 | } |
||
53 | /** |
||
54 | * Add new client |
||
55 | * |
||
56 | * @param string $name |
||
57 | * @param string $domain |
||
58 | * @param int $active |
||
59 | * |
||
60 | * @return false|string <i>false</i> on failure, id of created client otherwise |
||
61 | */ |
||
62 | public function add_client ($name, $domain, $active) { |
||
63 | if ( |
||
64 | !$domain || |
||
65 | strpos($domain, '/') !== false |
||
66 | ) { |
||
67 | return false; |
||
68 | } |
||
69 | /** |
||
70 | * Generate hash in cycle, to obtain unique value |
||
71 | */ |
||
72 | /** @noinspection LoopWhichDoesNotLoopInspection */ |
||
73 | while (true) { |
||
74 | $id = md5(random_bytes(1000)); |
||
75 | if ($this->db_prime()->qf( |
||
76 | "SELECT `id` |
||
77 | FROM `[prefix]oauth2_clients` |
||
78 | WHERE `id` = '$id' |
||
79 | LIMIT 1" |
||
80 | ) |
||
81 | ) { |
||
82 | continue; |
||
83 | } |
||
84 | $this->db_prime()->q( |
||
85 | "INSERT INTO `[prefix]oauth2_clients` |
||
86 | ( |
||
87 | `id`, |
||
88 | `secret`, |
||
89 | `name`, |
||
90 | `domain`, |
||
91 | `active` |
||
92 | ) VALUES ( |
||
93 | '%s', |
||
94 | '%s', |
||
95 | '%s', |
||
96 | '%s', |
||
97 | '%s' |
||
98 | )", |
||
99 | $id, |
||
100 | md5(random_bytes(1000)), |
||
101 | xap($name), |
||
102 | xap($domain), |
||
103 | (int)(bool)$active |
||
104 | ); |
||
105 | unset($this->cache->$id); |
||
106 | return $id; |
||
107 | } |
||
108 | } |
||
109 | /** |
||
110 | * Get client data |
||
111 | * |
||
112 | * @param string $id |
||
113 | * |
||
114 | * @return array|false |
||
115 | */ |
||
116 | public function get_client ($id) { |
||
117 | if (!is_md5($id)) { |
||
118 | return false; |
||
119 | } |
||
120 | return $this->cache->get( |
||
121 | $id, |
||
122 | function () use ($id) { |
||
123 | return $this->db()->qf( |
||
124 | "SELECT * |
||
125 | FROM `[prefix]oauth2_clients` |
||
126 | WHERE `id` = '%s' |
||
127 | LIMIT 1", |
||
128 | $id |
||
129 | ); |
||
130 | } |
||
131 | ); |
||
132 | } |
||
133 | /** |
||
134 | * Set client data |
||
135 | * |
||
136 | * @param string $id |
||
137 | * @param string $secret |
||
138 | * @param string $name |
||
139 | * @param string $domain |
||
140 | * @param int $active |
||
141 | * |
||
142 | * @return bool |
||
143 | */ |
||
144 | public function set_client ($id, $secret, $name, $domain, $active) { |
||
145 | if ( |
||
146 | !is_md5($id) || |
||
147 | !is_md5($secret) || |
||
148 | !$domain || |
||
149 | strpos($domain, '/') !== false |
||
150 | ) { |
||
151 | return false; |
||
152 | } |
||
153 | $result = $this->db_prime()->q( |
||
154 | "UPDATE `[prefix]oauth2_clients` |
||
155 | SET |
||
156 | `secret` = '%s', |
||
157 | `name` = '%s', |
||
158 | `domain` = '%s', |
||
159 | `active` = '%s' |
||
160 | WHERE `id` = '%s'", |
||
161 | $secret, |
||
162 | xap($name), |
||
163 | xap($domain), |
||
164 | (int)(bool)$active, |
||
165 | $id |
||
166 | ); |
||
167 | unset($this->cache->$id); |
||
168 | return !!$result; |
||
169 | } |
||
170 | /** |
||
171 | * Delete client |
||
172 | * |
||
173 | * @param string $id |
||
174 | * |
||
175 | * @return bool |
||
176 | */ |
||
177 | public function del_client ($id) { |
||
191 | } |
||
192 | /** |
||
193 | * Get clients list in form of associative array |
||
194 | * |
||
195 | * @return array|false |
||
196 | */ |
||
197 | public function clients_list () { |
||
198 | return $this->db()->qfa( |
||
199 | 'SELECT * |
||
200 | FROM `[prefix]oauth2_clients`' |
||
201 | ); |
||
202 | } |
||
203 | /** |
||
204 | * Grant access for specified client |
||
205 | * |
||
206 | * @param string $client |
||
207 | * |
||
208 | * @return bool |
||
209 | */ |
||
210 | public function add_access ($client) { |
||
211 | $User = User::instance(); |
||
212 | if (!$User->user() || !$this->get_client($client)) { |
||
213 | return false; |
||
214 | } |
||
215 | $result = $this->db_prime()->q( |
||
216 | "INSERT IGNORE INTO `[prefix]oauth2_clients_grant_access` |
||
217 | ( |
||
218 | `id`, |
||
219 | `user` |
||
220 | ) VALUES ( |
||
221 | '%s', |
||
222 | '%s' |
||
223 | )", |
||
224 | $client, |
||
225 | $User->id |
||
226 | ); |
||
227 | unset($this->cache->{"grant_access/$User->id"}); |
||
228 | return $result; |
||
229 | } |
||
230 | /** |
||
231 | * Check granted access for specified client |
||
232 | * |
||
233 | * @param string $client |
||
234 | * @param bool|int $user If not specified - current user assumed |
||
235 | * |
||
236 | * @return bool |
||
237 | */ |
||
238 | public function get_access ($client, $user = false) { |
||
239 | $user = (int)$user ?: User::instance()->id; |
||
240 | if ($user == User::GUEST_ID) { |
||
241 | return false; |
||
242 | } |
||
243 | $clients = $this->cache->get( |
||
244 | "grant_access/$user", |
||
245 | function () use ($user) { |
||
246 | return $this->db()->qfas( |
||
247 | "SELECT `id` |
||
248 | FROM `[prefix]oauth2_clients_grant_access` |
||
249 | WHERE `user` = '%s'", |
||
250 | $user |
||
251 | ); |
||
252 | } |
||
253 | ); |
||
254 | return $clients ? in_array($client, $clients) : false; |
||
255 | } |
||
256 | /** |
||
257 | * Deny access for specified client/ |
||
258 | * |
||
259 | * @param string $client If '' - access for all clients will be denied |
||
260 | * @param bool|int $user If not specified - current user assumed |
||
261 | * |
||
262 | * @return bool |
||
263 | */ |
||
264 | public function del_access ($client = '', $user = false) { |
||
265 | $user = (int)$user ?: User::instance()->id; |
||
266 | if ($user == User::GUEST_ID) { |
||
267 | return false; |
||
268 | } |
||
269 | $result = $client ? $this->db_prime()->q( |
||
270 | [ |
||
271 | "DELETE FROM `[prefix]oauth2_clients_grant_access` |
||
272 | WHERE |
||
273 | `user` = $user AND |
||
274 | `id` = '%s'", |
||
275 | "DELETE FROM `[prefix]oauth2_clients_sessions` |
||
276 | WHERE |
||
277 | `user` = $user AND |
||
278 | `id` = '%s'" |
||
279 | ], |
||
280 | $client |
||
281 | ) : $this->db_prime()->q( |
||
282 | [ |
||
283 | "DELETE FROM `[prefix]oauth2_clients_grant_access` |
||
284 | WHERE |
||
285 | `user` = $user", |
||
286 | "DELETE FROM `[prefix]oauth2_clients_sessions` |
||
287 | WHERE |
||
288 | `user` = $user" |
||
289 | ] |
||
290 | ); |
||
291 | unset($this->cache->{"grant_access/$user"}); |
||
292 | return $result; |
||
293 | } |
||
294 | /** |
||
295 | * Adds new code for specified client, code is used to obtain token |
||
296 | * |
||
297 | * @param string $client |
||
298 | * @param string $response_type 'code' or 'token' |
||
299 | * @param string $redirect_uri |
||
300 | * |
||
301 | * @return false|string <i>false</i> on failure or code for token access otherwise |
||
302 | */ |
||
303 | public function add_code ($client, $response_type, $redirect_uri = '') { |
||
304 | $Session = Session::instance(); |
||
305 | $client = $this->get_client($client); |
||
306 | if ( |
||
307 | !$client || |
||
308 | !$Session->user() || |
||
309 | !$this->get_access($client['id']) |
||
310 | ) { |
||
311 | return false; |
||
312 | } |
||
313 | $Request = Request::instance(); |
||
314 | $user_agent = $Request->header('user-agent'); |
||
315 | $current_session = $Session->get_id(); |
||
316 | $Request->headers['user-agent'] = "OAuth2-$client[name]-$client[id]"; |
||
317 | $Session->add($Session->get_user(), false); |
||
318 | $new_session = $Session->get_id(); |
||
319 | $Request->headers['user-agent'] = $user_agent; |
||
320 | $Session->load($current_session); |
||
321 | unset($user_agent, $current_session); |
||
322 | /** @noinspection LoopWhichDoesNotLoopInspection */ |
||
323 | while (true) { |
||
324 | $access_token = md5(random_bytes(1000)); |
||
325 | $refresh_token = md5($access_token.random_bytes(1000)); |
||
326 | $code = md5($refresh_token.random_bytes(1000)); |
||
327 | if ($this->db_prime()->qf( |
||
328 | "SELECT `id` |
||
329 | FROM `[prefix]oauth2_clients_sessions` |
||
330 | WHERE |
||
331 | `access_token` = '$access_token' OR |
||
332 | `refresh_token` = '$refresh_token' OR |
||
333 | `code` = '$code' |
||
334 | LIMIT 1" |
||
335 | ) |
||
336 | ) { |
||
337 | continue; |
||
338 | } |
||
339 | $result = $this->db_prime()->q( |
||
340 | "INSERT INTO `[prefix]oauth2_clients_sessions` |
||
341 | ( |
||
342 | `id`, |
||
343 | `user`, |
||
344 | `session`, |
||
345 | `created`, |
||
346 | `expire`, |
||
347 | `access_token`, |
||
348 | `refresh_token`, |
||
349 | `code`, |
||
350 | `type`, |
||
351 | `redirect_uri` |
||
352 | ) VALUES ( |
||
353 | '%s', |
||
354 | '%s', |
||
355 | '%s', |
||
356 | '%s', |
||
357 | '%s', |
||
358 | '%s', |
||
359 | '%s', |
||
360 | '%s', |
||
361 | '%s', |
||
362 | '%s' |
||
363 | )", |
||
364 | $client['id'], |
||
365 | $Session->get_user(), |
||
366 | $new_session, |
||
367 | time(), |
||
368 | time() + $this->expiration, |
||
369 | $access_token, |
||
370 | $refresh_token, |
||
371 | $code, |
||
372 | $response_type, |
||
373 | md5($redirect_uri) |
||
374 | ); |
||
375 | return $result ? $code : false; |
||
376 | } |
||
377 | return false; |
||
378 | } |
||
379 | /** |
||
380 | * Get code data (tokens) |
||
381 | * |
||
382 | * @param string $code |
||
383 | * @param string $client Client id |
||
384 | * @param string $secret Client secret |
||
385 | * @param string $redirect_uri |
||
386 | * |
||
387 | * @return array|false <i>false</i> on failure, otherwise array |
||
388 | * ['access_token' => md5, 'refresh_token' => md5, 'expires_in' => seconds, 'token_type' => 'bearer']<br> |
||
389 | * <i>expires_in</i> may be negative |
||
390 | */ |
||
391 | public function get_code ($code, $client, $secret, $redirect_uri = '') { |
||
392 | $client = $this->get_client($client); |
||
393 | if (!is_md5($code) || !$client || $client['secret'] != $secret) { |
||
394 | return false; |
||
395 | } |
||
396 | $data = $this->db_prime()->qf( |
||
397 | "SELECT |
||
398 | `access_token`, |
||
399 | `refresh_token`, |
||
400 | `expire`, |
||
401 | `user` |
||
402 | FROM `[prefix]oauth2_clients_sessions` |
||
403 | WHERE |
||
404 | `id` = '%s' AND |
||
405 | `code` = '%s' AND |
||
406 | `redirect_uri` = '%s' |
||
407 | LIMIT 1", |
||
408 | $client['id'], |
||
409 | $code, |
||
410 | md5($redirect_uri) |
||
411 | ); |
||
412 | if (!$data) { |
||
413 | return false; |
||
414 | } |
||
415 | $this->db_prime()->q( |
||
416 | "UPDATE `[prefix]oauth2_clients_sessions` |
||
417 | SET `code` = '' |
||
418 | WHERE |
||
419 | `id` = '%s' AND |
||
420 | `code` = '%s' AND |
||
421 | `redirect_uri` = '%s'", |
||
422 | $client['id'], |
||
423 | $code, |
||
424 | md5($redirect_uri) |
||
425 | ); |
||
426 | return [ |
||
427 | 'access_token' => $data['access_token'], |
||
428 | 'refresh_token' => $data['refresh_token'], |
||
429 | 'expires_in' => $data['expire'] - time(), |
||
430 | 'token_type' => 'bearer', |
||
431 | 'user_id' => $data['user'] |
||
432 | ]; |
||
433 | } |
||
434 | /** |
||
435 | * Get token data |
||
436 | * |
||
437 | * @param string $access_token |
||
438 | * |
||
439 | * @return array|false <i>false</i> on failure, array ['user' => id, 'session' => id, 'expire' => unix time, 'type' => 'code'|'token'] |
||
440 | */ |
||
441 | public function get_token ($access_token) { |
||
492 | } |
||
493 | /** |
||
494 | * Del token data (invalidate token) |
||
495 | * |
||
496 | * @param string $access_token |
||
497 | * |
||
498 | * @return bool |
||
499 | */ |
||
500 | public function del_token ($access_token) { |
||
523 | } |
||
524 | /** |
||
525 | * Get new access_token with refresh_token |
||
526 | * |
||
527 | * @param string $refresh_token |
||
528 | * @param string $client Client id |
||
529 | * @param string $secret Client secret |
||
530 | * |
||
531 | * @return array|false <i>false</i> on failure, otherwise array ['access_token' => md5, 'refresh_token' => md5, 'expires_in' => seconds, 'token_type' => |
||
532 | * 'bearer'] |
||
533 | */ |
||
534 | public function refresh_token ($refresh_token, $client, $secret) { |
||
577 | } |
||
578 | } |
||
579 |