Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like authCheck 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. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
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 authCheck, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 31 | class authCheck |
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| 32 | { |
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| 33 | |||
| 34 | /** |
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| 35 | * @var |
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| 36 | */ |
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| 37 | private $active; |
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| 38 | private $config; |
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| 39 | private $discord; |
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| 40 | private $logger; |
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| 41 | private $db; |
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| 42 | private $dbUser; |
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| 43 | private $dbPass; |
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| 44 | private $dbName; |
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| 45 | private $guildID; |
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| 46 | private $exempt; |
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| 47 | private $corpTickers; |
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| 48 | private $nameEnforce; |
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| 49 | private $standingsBased; |
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| 50 | private $apiKey; |
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| 51 | private $authGroups; |
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| 52 | private $alertChannel; |
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| 53 | private $nameCheck; |
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| 54 | private $dbusers; |
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| 55 | private $characterCache; |
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| 56 | private $corpCache; |
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| 57 | |||
| 58 | /** |
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| 59 | * @param $config |
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| 60 | * @param $discord |
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| 61 | * @param $logger |
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| 62 | */ |
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| 63 | public function init($config, $discord, $logger) |
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| 110 | |||
| 111 | public function tick() |
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| 132 | |||
| 133 | // remove user roles |
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| 134 | |||
| 135 | |||
| 136 | private function checkPermissions() |
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| 168 | |||
| 169 | private function isMemberInValidCorp($member) |
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| 170 | { |
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| 171 | $corpArray = array_column($this->authGroups, 'corpID'); |
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| 172 | $discordID = $member->id; |
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| 173 | $return = false; |
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| 174 | if (isset($this->dbusers[$discordID])) { |
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| 175 | $character = $this->getCharacterDetails($this->dbusers[$discordID]['characterID']); |
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| 176 | $return = in_array($character['corporation_id'], $corpArray); |
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| 177 | } |
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| 178 | return $return; |
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| 179 | } |
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| 180 | |||
| 181 | View Code Duplication | private function getCharacterDetails($charID, $retries = 3) |
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| 182 | { |
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| 183 | if (isset($this->characterCache[$charID])) { |
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| 184 | return $this->characterCache[$charID]; |
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| 185 | } |
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| 186 | $character = null; |
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| 187 | for ($i = 0; $i < $retries; $i++) { |
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| 188 | $character = characterDetails($charID); |
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| 189 | if (!is_null($character)) { |
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| 190 | break; |
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| 191 | } |
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| 192 | } |
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| 193 | if (!$character || isset($character['error'])) { |
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| 194 | $this->logger->addInfo('AuthCheck: characterDetails lookup failed.'); |
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| 195 | $msg = isset($character['error']) ? $character['error'] : 'characterDetails lookup failed'; |
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| 196 | throw new Exception($msg); |
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| 197 | } |
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| 198 | $this->characterCache[$charID] = $character; |
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| 199 | return $character; |
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| 200 | } |
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| 201 | |||
| 202 | private function isMemberInValidAlliance($member) |
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| 203 | { |
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| 204 | $allianceArray = array_column($this->authGroups, 'allianceID'); |
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| 205 | $discordID = $member->id; |
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| 206 | $return = false; |
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| 207 | // get charID |
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| 208 | if (isset($this->dbusers[$discordID])) { |
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| 209 | $character = $this->getCharacterDetails($this->dbusers[$discordID]['characterID']); |
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| 210 | $corp = $this->getCorpDetails($character['corporation_id']); |
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| 211 | $return = isset($corp['alliance_id']) && in_array($corp['alliance_id'], $allianceArray); |
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| 212 | } |
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| 213 | return $return; |
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| 214 | } |
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| 215 | |||
| 216 | View Code Duplication | private function getCorpDetails($corpID, $retries = 3) |
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| 217 | { |
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| 218 | if (isset($this->corpCache[$corpID])) { |
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| 219 | return $this->corpCache[$corpID]; |
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| 220 | } |
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| 221 | $corporationDetails = null; |
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| 222 | for ($i = 0; $i < $retries; $i++) { |
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| 223 | $corporationDetails = corpDetails($corpID); |
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| 224 | if (!is_null($corporationDetails)) { |
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| 225 | break; |
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| 226 | } |
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| 227 | } |
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| 228 | if (!$corporationDetails || isset($corporationDetails['error'])) { |
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| 229 | $this->logger->addInfo('AuthCheck: corpDetails lookup failed.'); |
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| 230 | $msg = isset($corporationDetails['error']) ? $corporationDetails['error'] : 'corpDetails lookup failed'; |
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| 231 | throw new Exception($msg); |
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| 232 | } |
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| 233 | $this->corpCache[$corpID] = $corporationDetails; |
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| 234 | return $corporationDetails; |
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| 235 | } |
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| 236 | |||
| 237 | private function isMemberCorpOrAllianceContact($member) |
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| 238 | { |
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| 239 | $return = false; |
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| 240 | $discordID = $member->id; |
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| 241 | if (isset($this->dbusers[$discordID])) { |
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| 242 | $role = $this->dbusers[$discordID]['role']; |
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| 243 | if ($role === 'blue' || 'neut' || 'red') { |
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| 244 | $character = $this->getCharacterDetails($this->dbusers[$discordID]['characterID']); |
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| 245 | $corporationDetails = $this->getCorpDetails($character['corporation_id']); |
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| 246 | $allianceContacts = getContacts($corporationDetails['alliance_id']); |
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| 247 | $corpContacts = getContacts($character['corporation_id']); |
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| 248 | if ($role === 'blue' && ((int)$allianceContacts['standing'] === 5 || 10 || (int)$corpContacts['standing'] === 5 || 10)) { |
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| 249 | $return = true; |
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| 250 | } |
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| 251 | if ($role === 'red' && ((int)$allianceContacts['standing'] === -5 || -10 || (int)$corpContacts['standing'] === -5 || -10)) { |
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| 252 | $return = true; |
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| 253 | } |
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| 254 | if ($role === 'neut' && ((int)$allianceContacts['standing'] === 0 || (int)$corpContacts['standing'] === 0 || (@(int)$allianceContacts['standings'] === null || '' && @(int)$corpContacts['standings'] === null || ''))) { |
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| 255 | $return = true; |
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| 256 | } |
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| 257 | } |
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| 258 | } |
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| 259 | return $return; |
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| 260 | } |
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| 261 | |||
| 262 | private function deactivateMember($member) |
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| 263 | { |
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| 264 | $discordID = $member->id; |
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| 265 | $discordNick = $member->nick ?: $member->user->username; |
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| 266 | $this->logger->addInfo("AuthCheck: User [$discordNick] not found in database."); |
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| 267 | $dbh = new PDO("mysql:host={$this->db};dbname={$this->dbName}", $this->dbUser, $this->dbPass); |
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| 268 | $sql = "UPDATE authUsers SET active='no' WHERE discordID='$discordID'"; |
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| 269 | $dbh->query($sql); |
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| 270 | unset($this->dbusers[$member->id]); |
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| 271 | $this->removeRoles($member); |
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| 272 | } |
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| 273 | |||
| 274 | private function removeRoles($member) |
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| 297 | |||
| 298 | /** |
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| 299 | * @return null |
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| 300 | */ |
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| 301 | |||
| 302 | //Check user corp/alliance affiliation |
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| 303 | //Remove members who have roles but never authed |
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| 304 | private function resetMemberNick($member) |
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| 305 | { |
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| 306 | $discordID = $member->id; |
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| 307 | $discordNick = $member->nick ?: $member->user->username; |
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| 308 | if (!isset($this->dbusers[$discordID])) { |
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| 309 | return false; |
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| 310 | } |
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| 311 | $character = $this->getCharacterDetails($this->dbusers[$discordID]['characterID']); |
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| 312 | $corpTicker = ''; |
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| 313 | if ($this->corpTickers === 'true') { |
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| 314 | $corporationDetails = $this->getCorpDetails($character['corporation_id']); |
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| 315 | if ($corporationDetails && isset($corporationDetails['ticker']) && $corporationDetails['ticker'] !== 'U') { |
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| 316 | $corpTicker = "[{$corporationDetails['ticker']}] "; |
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| 317 | } |
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| 318 | } |
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| 319 | if ($this->nameEnforce) { |
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| 320 | $newNick = $corpTicker . $this->dbusers[$discordID]['eveName']; |
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| 321 | } else { |
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| 322 | $newNick = $corpTicker . $discordNick; |
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| 323 | } |
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| 324 | if ($newNick !== $discordNick) { |
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| 325 | queueRename($discordID, $newNick, $this->guildID); |
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| 326 | } |
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| 327 | } |
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| 328 | |||
| 329 | private function standingsUpdate() |
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| 352 | } |
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| 353 |
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.