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 LDAPUser 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 LDAPUser, and based on these observations, apply Extract Interface, too.
1 | <?php |
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4 | class LDAPUser extends User |
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5 | { |
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6 | use LDAPCachableObject; |
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7 | use LDAPGettableObject; |
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8 | use LDAPSettableObject; |
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9 | |||
10 | private $ldapObj; |
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11 | private $server; |
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12 | |||
13 | /** |
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14 | * Initialize a LDAPUser object |
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15 | * |
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16 | * @param boolean|array|object $data The data to initialize the LDAPUser with or false for an empty User |
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17 | * |
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18 | * @SuppressWarnings("StaticAccess") |
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19 | */ |
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20 | public function __construct($data = false) |
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21 | { |
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22 | $this->server = \LDAP\LDAPServer::getInstance(); |
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23 | $this->initialize($data); |
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24 | } |
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25 | |||
26 | private function checkChildGroup($array) |
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27 | { |
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28 | $res = false; |
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29 | for($i = 0; $i < $array['count']; $i++) |
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30 | { |
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31 | if(strpos($array[$i], $this->server->group_base) !== false) |
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32 | { |
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33 | $dn = explode(',', $array[$i]); |
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34 | $res = $this->isInGroupNamed(substr($dn[0], 3)); |
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35 | if($res) |
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36 | { |
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37 | return $res; |
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38 | } |
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39 | } |
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40 | } |
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41 | return $res; |
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42 | } |
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43 | |||
44 | /** |
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45 | * @param string $listName The name of the list to search |
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46 | * @param Group $group The group to search inside |
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47 | * @param string $dn The distringuished name to search for |
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48 | */ |
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49 | private function isInListOrChild($listName, $group, $dn) |
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61 | |||
62 | private function uidInMemberUid($group, $uid) |
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63 | { |
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66 | |||
67 | public function isInGroupNamed($name) |
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97 | |||
98 | protected $valueDefaults = array( |
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99 | 'o' => 'Volunteer' |
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100 | ); |
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101 | |||
102 | protected $multiValueProps = array( |
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103 | 'title', |
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104 | 'ou', |
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105 | 'host' |
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106 | ); |
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107 | |||
108 | protected $cachedOnlyProps = array( |
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109 | 'uid' |
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110 | ); |
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111 | |||
112 | /** |
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113 | * LDAP does not allow anonymous read |
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114 | * |
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115 | * @SuppressWarnings("StaticAccess") |
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116 | */ |
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117 | View Code Duplication | protected function enableRead() |
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127 | |||
128 | /** |
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129 | * Allow write for the user |
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130 | * |
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131 | * @SuppressWarnings("StaticAccess") |
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132 | */ |
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133 | View Code Duplication | protected function enableReadWrite() |
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143 | |||
144 | public function getGroups() |
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163 | |||
164 | public function addLoginProvider($provider) |
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168 | |||
169 | private function generateLDAPPass($pass) |
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176 | |||
177 | public function setPass($password) |
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194 | |||
195 | public function validate_password($password) |
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199 | |||
200 | public function validate_reset_hash($hash) |
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208 | |||
209 | public static function from_name($name, $data) |
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223 | |||
224 | public function flushUser() |
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247 | |||
248 | private function getHashFromUser($ldapObj) |
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256 | |||
257 | public function getPasswordResetHash() |
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272 | |||
273 | public function delete() |
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279 | } |
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280 | /* vim: set tabstop=4 shiftwidth=4 expandtab: */ |
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281 |
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.