| Total Complexity | 70 |
| Total Lines | 524 |
| Duplicated Lines | 0 % |
| Changes | 1 | ||
| Bugs | 0 | Features | 0 |
Complex classes like IpList 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 IpList, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 9 | class IpList |
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| 10 | { |
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| 11 | use ServiceInstances; |
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| 12 | |||
| 13 | /** |
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| 14 | * @var FirewallModel |
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| 15 | */ |
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| 16 | private $model; |
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| 17 | |||
| 18 | /** |
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| 19 | * Create instance of DataRepository. |
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| 20 | * |
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| 21 | * @param FirewallModel $model |
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| 22 | */ |
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| 23 | public function __construct(FirewallModel $model) |
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| 24 | { |
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| 25 | $this->model = $model; |
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| 26 | } |
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| 27 | |||
| 28 | /** |
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| 29 | * Get a list of non database ip addresses. |
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| 30 | * |
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| 31 | * @return array |
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| 32 | */ |
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| 33 | private function getNonDatabaseIps() |
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| 34 | { |
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| 35 | return array_merge_recursive( |
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| 36 | array_map(function ($ip) { |
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| 37 | $ip['whitelisted'] = true; |
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| 38 | |||
| 39 | return $ip; |
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| 40 | }, $this->formatIpArray($this->config()->get('whitelist'))), |
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| 41 | |||
| 42 | array_map(function ($ip) { |
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| 43 | $ip['whitelisted'] = false; |
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| 44 | |||
| 45 | return $ip; |
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| 46 | }, $this->formatIpArray($this->config()->get('blacklist'))) |
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| 47 | ); |
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| 48 | } |
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| 49 | |||
| 50 | |||
| 51 | /** |
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| 52 | * Remove ip from all array lists. |
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| 53 | * |
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| 54 | * @param $ipAddress |
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| 55 | * |
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| 56 | * @return bool |
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| 57 | */ |
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| 58 | private function removeFromArrayList($ipAddress) |
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| 59 | { |
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| 60 | return $this->removeFromArrayListType('whitelist', $ipAddress) || |
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| 61 | $this->removeFromArrayListType('blacklist', $ipAddress); |
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| 62 | } |
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| 63 | |||
| 64 | |||
| 65 | /** |
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| 66 | * Remove the ip address from an array list. |
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| 67 | * |
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| 68 | * @param $type |
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| 69 | * @param $ipAddress |
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| 70 | * |
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| 71 | * @return bool |
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| 72 | */ |
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| 73 | private function removeFromArrayListType($type, $ipAddress) |
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| 74 | { |
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| 75 | if (($key = array_search($ipAddress, $data = $this->config()->get($type))) !== false) { |
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| 76 | unset($data[$key]); |
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| 77 | |||
| 78 | $this->config()->set($type, $data); |
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| 79 | |||
| 80 | return true; |
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| 81 | } |
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| 82 | |||
| 83 | return false; |
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| 84 | } |
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| 85 | |||
| 86 | /** |
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| 87 | * Remove ip from database. |
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| 88 | * |
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| 89 | * @param $ipAddress |
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| 90 | * |
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| 91 | * @return bool |
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| 92 | */ |
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| 93 | private function removeFromDatabaseList($ipAddress) |
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| 104 | } |
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| 105 | |||
| 106 | /** |
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| 107 | * Transform a list of ips to a list of models. |
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| 108 | * |
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| 109 | * @param $ipList |
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| 110 | * |
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| 111 | * @return \Illuminate\Support\Collection |
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| 112 | */ |
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| 113 | private function toModels($ipList) |
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| 114 | { |
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| 115 | $ips = []; |
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| 116 | |||
| 117 | foreach ($ipList as $ip) { |
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| 118 | $ips[] = $this->makeModel($ip); |
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| 119 | } |
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| 120 | |||
| 121 | return collect($ips); |
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| 122 | } |
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| 123 | |||
| 124 | /** |
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| 125 | * Make a model instance. |
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| 126 | * |
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| 127 | * @param $ip |
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| 128 | * |
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| 129 | * @return \Illuminate\Database\Eloquent\Model |
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| 130 | */ |
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| 131 | private function makeModel($ip) |
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| 132 | { |
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| 133 | return $this->model->newInstance($ip); |
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| 134 | } |
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| 135 | |||
| 136 | /** |
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| 137 | * Read a file contents. |
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| 138 | * |
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| 139 | * @param $file |
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| 140 | * |
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| 141 | * @return array |
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| 142 | */ |
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| 143 | private function readFile($file) |
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| 144 | { |
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| 145 | if ($this->fileSystem->exists($file)) { |
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| 146 | $lines = file($file, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES); |
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| 147 | |||
| 148 | return $this->makeArrayOfIps($lines); |
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| 149 | } |
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| 150 | |||
| 151 | return []; |
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| 152 | } |
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| 153 | |||
| 154 | /** |
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| 155 | * Format all ips in an array. |
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| 156 | * |
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| 157 | * @param $list |
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| 158 | * |
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| 159 | * @return array |
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| 160 | */ |
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| 161 | private function formatIpArray($list) |
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| 162 | { |
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| 163 | return array_map(function ($ip) { |
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| 164 | return ['ip_address' => $ip]; |
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| 165 | }, $this->makeArrayOfIps($list)); |
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| 166 | } |
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| 167 | |||
| 168 | /** |
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| 169 | * Make a list of arrays from all sort of things. |
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| 170 | * |
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| 171 | * @param $list |
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| 172 | * |
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| 173 | * @return array |
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| 174 | */ |
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| 175 | private function makeArrayOfIps($list) |
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| 176 | { |
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| 177 | $list = $list ?: []; |
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| 178 | |||
| 179 | $ips = []; |
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| 180 | |||
| 181 | foreach ($list as $item) { |
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| 182 | $ips = array_merge($ips, $this->getIpsFromAnything($item)); |
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| 183 | } |
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| 184 | |||
| 185 | return $ips; |
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| 186 | } |
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| 187 | |||
| 188 | /** |
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| 189 | * Get a list of ips from anything. |
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| 190 | * |
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| 191 | * @param $item |
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| 192 | * |
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| 193 | * @return array |
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| 194 | */ |
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| 195 | private function getIpsFromAnything($item) |
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| 196 | { |
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| 197 | if (starts_with($item, 'country:')) { |
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| 198 | return [$item]; |
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| 199 | } |
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| 200 | |||
| 201 | $item = $this->ipAddress()->hostToIp($item); |
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| 202 | |||
| 203 | if ($this->ipAddress()->ipV4Valid($item)) { |
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| 204 | return [$item]; |
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| 205 | } |
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| 206 | |||
| 207 | return $this->readFile($item); |
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| 208 | } |
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| 209 | |||
| 210 | /** |
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| 211 | * Search for an ip in alist of ips. |
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| 212 | * |
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| 213 | * @param $ip |
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| 214 | * @param $ips |
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| 215 | * |
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| 216 | * @return null|\Illuminate\Database\Eloquent\Model |
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| 217 | */ |
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| 218 | private function ipArraySearch($ip, $ips) |
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| 227 | } |
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| 228 | } |
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| 229 | } |
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| 230 | |||
| 231 | /** |
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| 232 | * Get all IPs from database. |
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| 233 | * |
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| 234 | * @return \Illuminate\Support\Collection |
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| 235 | */ |
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| 236 | private function getAllFromDatabase() |
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| 237 | { |
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| 238 | if ($this->config()->get('use_database')) { |
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| 239 | return $this->model->all(); |
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| 240 | } else { |
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| 241 | return collect([]); |
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| 242 | } |
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| 243 | } |
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| 244 | |||
| 245 | /** |
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| 246 | * Merge IP lists. |
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| 247 | * |
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| 248 | * @param $database_ips |
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| 249 | * @param $config_ips |
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| 250 | * |
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| 251 | * @return \Illuminate\Support\Collection |
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| 252 | */ |
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| 253 | private function mergeLists($database_ips, $config_ips) |
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| 254 | { |
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| 255 | return collect($database_ips) |
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| 256 | ->merge(collect($config_ips)); |
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| 257 | } |
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| 258 | |||
| 259 | /** |
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| 260 | * Check if an IP address is in a secondary (black/white) list. |
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| 261 | * |
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| 262 | * @param $ip_address |
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| 263 | * |
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| 264 | * @return bool|array |
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| 265 | */ |
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| 266 | public function checkSecondaryLists($ip_address) |
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| 267 | { |
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| 268 | foreach ($this->all() as $range) { |
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| 269 | if ($this->ipAddress()->hostToIp($range) == $ip_address || $this->ipAddress()->validRange($ip_address, $range)) { |
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| 270 | return $range; |
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| 271 | } |
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| 272 | } |
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| 273 | |||
| 274 | return false; |
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| 275 | } |
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| 276 | |||
| 277 | /** |
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| 278 | * Add an IP to black or whitelist. |
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| 279 | * |
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| 280 | * @param $whitelist |
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| 281 | * @param $ip |
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| 282 | * @param bool $force |
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| 283 | * |
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| 284 | * @return bool |
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| 285 | */ |
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| 286 | public function addToList($whitelist, $ip, $force = false) |
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| 287 | { |
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| 288 | $list = $whitelist |
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| 289 | ? 'whitelist' |
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| 290 | : 'blacklist'; |
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| 291 | |||
| 292 | if (!$this->ipAddress()->isValid($ip)) { |
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| 293 | $this->messages()->addMessage(sprintf('%s is not a valid IP address', $ip)); |
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| 294 | |||
| 295 | return false; |
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| 296 | } |
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| 297 | |||
| 298 | $listed = $this->whichList($ip); |
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| 299 | |||
| 300 | if ($listed == $list) { |
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| 301 | $this->messages()->addMessage(sprintf('%s is already %s', $ip, $list.'ed')); |
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| 302 | |||
| 303 | return false; |
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| 304 | } else { |
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| 305 | if (empty($listed) || $force) { |
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| 306 | if (!empty($listed)) { |
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| 307 | $this->remove($ip); |
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| 308 | } |
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| 309 | |||
| 310 | $this->addToProperList($whitelist, $ip); |
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| 311 | |||
| 312 | $this->messages()->addMessage(sprintf('%s is now %s', $ip, $list.'ed')); |
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| 313 | |||
| 314 | return true; |
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| 315 | } |
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| 316 | } |
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| 317 | |||
| 318 | $this->messages()->addMessage(sprintf('%s is currently %sed', $ip, $listed)); |
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| 319 | |||
| 320 | return false; |
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| 321 | } |
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| 322 | |||
| 323 | /** |
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| 324 | * Tell in which list (black/white) an IP address is. |
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| 325 | * |
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| 326 | * @param $ip_address |
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| 327 | * |
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| 328 | * @return null|string |
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| 329 | */ |
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| 330 | public function whichList($ip_address) |
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| 331 | { |
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| 332 | if (!$ip_found = $this->find($ip_address)) { |
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| 333 | if (!$ip_found = $this->findByCountry($ip_address)) { |
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| 334 | if (!$ip_found = $this->checkSecondaryLists($ip_address)) { |
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| 335 | return; |
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| 336 | } |
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| 337 | } |
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| 338 | } |
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| 339 | |||
| 340 | return !is_null($ip_found) |
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| 341 | ? ($ip_found['whitelisted'] ? 'whitelist' : 'blacklist') |
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| 342 | : null; |
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| 343 | } |
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| 344 | |||
| 345 | /** |
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| 346 | * Remove IP from all lists. |
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| 347 | * |
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| 348 | * @param $ip |
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| 349 | * |
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| 350 | * @return bool |
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| 351 | */ |
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| 352 | public function remove($ip) |
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| 353 | { |
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| 354 | $listed = $this->whichList($ip); |
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| 355 | |||
| 356 | if (!empty($listed)) { |
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| 357 | $this->delete($ip); |
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| 358 | |||
| 359 | $this->messages()->addMessage(sprintf('%s removed from %s', $ip, $listed)); |
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| 360 | |||
| 361 | return true; |
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| 362 | } |
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| 363 | |||
| 364 | $this->messages()->addMessage(sprintf('%s is not listed', $ip)); |
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| 365 | |||
| 366 | return false; |
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| 367 | } |
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| 368 | |||
| 369 | /** |
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| 370 | * Add ip or range to array list. |
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| 371 | * |
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| 372 | * @param $whitelist |
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| 373 | * @param $ip |
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| 374 | * |
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| 375 | * @return array|mixed |
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| 376 | */ |
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| 377 | private function addToArrayList($whitelist, $ip) |
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| 386 | } |
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| 387 | |||
| 388 | /** |
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| 389 | * Find an IP address in the data source. |
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| 390 | * |
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| 391 | * @param string $ip |
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| 392 | * |
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| 393 | * @return mixed |
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| 394 | */ |
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| 395 | public function find($ip) |
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| 406 | } |
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| 407 | |||
| 408 | /** |
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| 409 | * Find an IP address by country. |
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| 410 | * |
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| 411 | * @param $country |
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| 412 | * |
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| 413 | * @return mixed |
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| 414 | */ |
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| 415 | public function findByCountry($country) |
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| 416 | { |
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| 417 | if ($this->config()->get('enable_country_search') && !is_null($country = $this->countries()->makeCountryFromString($country))) { |
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| 418 | return $this->find($country); |
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| 419 | } |
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| 420 | } |
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| 421 | |||
| 422 | /** |
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| 423 | * Find a Ip in the data source. |
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| 424 | * |
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| 425 | * @param string $ip |
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| 426 | * |
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| 427 | * @return void |
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| 428 | */ |
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| 429 | public function addToProperList($whitelist, $ip) |
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| 434 | } |
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| 435 | |||
| 436 | /** |
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| 437 | * Delete ip address. |
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| 438 | * |
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| 439 | * @param $ipAddress |
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| 440 | * |
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| 441 | * @return bool|void |
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| 442 | */ |
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| 443 | public function delete($ipAddress) |
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| 444 | { |
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| 445 | $this->config()->get('use_database') ? |
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| 446 | $this->removeFromDatabaseList($ipAddress) : |
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| 447 | $this->removeFromArrayList($ipAddress); |
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| 448 | } |
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| 449 | |||
| 450 | /** |
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| 451 | * Get all IP addresses. |
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| 452 | * |
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| 453 | * @return \Illuminate\Support\Collection |
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| 454 | */ |
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| 455 | public function all() |
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| 456 | { |
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| 457 | $cacheTime = $this->config()->get('ip_list_cache_expire_time'); |
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| 458 | |||
| 459 | if ($cacheTime > 0 && $list = $this->cache()->get(static::IP_ADDRESS_LIST_CACHE_NAME)) { |
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| 460 | return $list; |
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| 461 | } |
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| 462 | |||
| 463 | $list = $this->mergeLists( |
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| 464 | $this->getAllFromDatabase(), |
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| 465 | $this->toModels($this->getNonDatabaseIps()) |
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| 466 | ); |
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| 467 | |||
| 468 | if ($cacheTime > 0) { |
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| 469 | $this->cache()->put( |
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| 470 | static::IP_ADDRESS_LIST_CACHE_NAME, |
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| 471 | $list, |
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| 472 | $cacheTime |
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| 473 | ); |
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| 474 | } |
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| 475 | |||
| 476 | return $list; |
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| 477 | } |
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| 478 | |||
| 479 | /** |
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| 480 | * Find ip address in all lists. |
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| 481 | * |
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| 482 | * @param $ip |
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| 483 | * |
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| 484 | * @return \Illuminate\Database\Eloquent\Model|null|static |
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| 485 | */ |
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| 486 | private function findIp($ip) |
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| 487 | { |
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| 488 | if ($model = $this->nonDatabaseFind($ip)) { |
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| 489 | return $model; |
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| 490 | } |
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| 491 | |||
| 492 | if ($this->config()->get('use_database')) { |
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| 493 | return $this->model->where('ip_address', $ip)->first(); |
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| 494 | } |
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| 495 | } |
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| 496 | |||
| 497 | /** |
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| 498 | * Find ip in non database lists. |
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| 499 | * |
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| 500 | * @param $ip |
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| 501 | * |
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| 502 | * @return \Illuminate\Database\Eloquent\Model |
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| 503 | */ |
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| 504 | private function nonDatabaseFind($ip) |
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| 505 | { |
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| 506 | $ips = $this->getNonDatabaseIps(); |
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| 507 | |||
| 508 | if ($ip = $this->ipArraySearch($ip, $ips)) { |
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| 509 | return $this->makeModel($ip); |
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| 510 | } |
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| 511 | } |
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| 512 | |||
| 513 | /** |
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| 514 | * Add ip or range to database. |
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| 515 | * |
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| 516 | * @param $whitelist |
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| 517 | * @param $ip |
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| 518 | * |
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| 519 | * @return \Illuminate\Database\Eloquent\Model |
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| 520 | */ |
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| 521 | private function addToDatabaseList($whitelist, $ip) |
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| 533 | } |
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| 534 | } |
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| 535 |
This check compares calls to functions or methods with their respective definitions. If the call has less arguments than are defined, it raises an issue.
If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress. Please note the @ignore annotation hint above.