Total Complexity | 76 |
Total Lines | 385 |
Duplicated Lines | 0 % |
Changes | 0 |
Complex classes like PrivilegesTrait 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 PrivilegesTrait, and based on these observations, apply Extract Interface, too.
1 | <?php |
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12 | trait PrivilegesTrait |
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13 | { |
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14 | /** |
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15 | * Grabs an array of users and their privileges for an object, |
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16 | * given its type. |
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17 | * |
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18 | * @param string $object The name of the object whose privileges are to be retrieved |
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19 | * @param string $type The type of the object (eg. database, schema, relation, function or language) |
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20 | * @param null|string $table Optional, column's table if type = column |
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21 | * |
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22 | * @return array|int Privileges array or error code |
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23 | * - -1 invalid type |
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24 | * - -2 object not found |
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25 | * - -3 unknown privilege type |
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26 | */ |
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27 | public function getPrivileges($object, $type, $table = null) |
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93 | } |
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94 | |||
95 | /** |
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96 | * Internal function used for parsing ACLs. |
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97 | * |
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98 | * @param string $acl The ACL to parse (of type aclitem[]) |
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99 | * |
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100 | * @return array|int Privileges array or integer with error code |
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101 | * |
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102 | * @internal bool $in_quotes toggles acl in_quotes attribute |
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103 | */ |
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104 | protected function parseACL($acl) |
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105 | { |
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106 | // Take off the first and last characters (the braces) |
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107 | $acl = substr($acl, 1, strlen($acl) - 2); |
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108 | |||
109 | // Pick out individual ACE's by carefully parsing. This is necessary in order |
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110 | // to cope with usernames and stuff that contain commas |
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111 | $aces = []; |
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112 | $i = $j = 0; |
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113 | $in_quotes = false; |
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114 | while ($i < strlen($acl)) { |
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115 | // If current char is a double quote and it's not escaped, then |
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116 | // enter quoted bit |
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117 | $char = substr($acl, $i, 1); |
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118 | if ($char == '"' && ($i == 0 || substr($acl, $i - 1, 1) != '\\')) { |
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119 | $in_quotes = !$in_quotes; |
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120 | } elseif ($char == ',' && !$in_quotes) { |
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121 | // Add text so far to the array |
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122 | $aces[] = substr($acl, $j, $i - $j); |
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123 | $j = $i + 1; |
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124 | } |
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125 | ++$i; |
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126 | } |
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127 | // Add final text to the array |
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128 | $aces[] = substr($acl, $j); |
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129 | |||
130 | // Create the array to be returned |
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131 | $temp = []; |
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132 | |||
133 | // For each ACE, generate an entry in $temp |
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134 | foreach ($aces as $v) { |
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135 | // If the ACE begins with a double quote, strip them off both ends |
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136 | // and unescape backslashes and double quotes |
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137 | // $unquote = false; |
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138 | if (strpos($v, '"') === 0) { |
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139 | $v = substr($v, 1, strlen($v) - 2); |
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140 | $v = str_replace('\\"', '"', $v); |
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141 | $v = str_replace('\\\\', '\\', $v); |
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142 | } |
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143 | |||
144 | // Figure out type of ACE (public, user or group) |
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145 | if (strpos($v, '=') === 0) { |
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146 | $atype = 'public'; |
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147 | } else { |
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148 | if ($this->hasRoles()) { |
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149 | $atype = 'role'; |
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150 | } else { |
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151 | if (strpos($v, 'group ') === 0) { |
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152 | $atype = 'group'; |
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153 | // Tear off 'group' prefix |
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154 | $v = substr($v, 6); |
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155 | } else { |
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156 | $atype = 'user'; |
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157 | } |
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158 | } |
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159 | } |
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160 | |||
161 | // Break on unquoted equals sign... |
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162 | $i = 0; |
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163 | $in_quotes = false; |
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164 | $entity = null; |
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165 | $chars = null; |
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166 | while ($i < strlen($v)) { |
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167 | // If current char is a double quote and it's not escaped, then |
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168 | // enter quoted bit |
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169 | $char = substr($v, $i, 1); |
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170 | $next_char = substr($v, $i + 1, 1); |
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171 | if ($char == '"' && ($i == 0 || $next_char != '"')) { |
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172 | $in_quotes = !$in_quotes; |
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173 | } elseif ($char == '"' && $next_char == '"') { |
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174 | // Skip over escaped double quotes |
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175 | ++$i; |
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176 | } elseif ($char == '=' && !$in_quotes) { |
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177 | // Split on current equals sign |
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178 | $entity = substr($v, 0, $i); |
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179 | $chars = substr($v, $i + 1); |
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180 | |||
181 | break; |
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182 | } |
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183 | ++$i; |
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184 | } |
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185 | |||
186 | // Check for quoting on entity name, and unescape if necessary |
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187 | if (strpos($entity, '"') === 0) { |
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188 | $entity = substr($entity, 1, strlen($entity) - 2); |
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189 | $entity = str_replace('""', '"', $entity); |
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190 | } |
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191 | |||
192 | // New row to be added to $temp |
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193 | // (type, grantee, privileges, grantor, grant option? |
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194 | $row = [$atype, $entity, [], '', []]; |
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195 | |||
196 | // Loop over chars and add privs to $row |
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197 | for ($i = 0; $i < strlen($chars); ++$i) { |
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198 | // Append to row's privs list the string representing |
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199 | // the privilege |
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200 | $char = substr($chars, $i, 1); |
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201 | if ($char == '*') { |
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202 | $row[4][] = $this->privmap[substr($chars, $i - 1, 1)]; |
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203 | } elseif ($char == '/') { |
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204 | $grantor = substr($chars, $i + 1); |
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205 | // Check for quoting |
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206 | if (strpos($grantor, '"') === 0) { |
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207 | $grantor = substr($grantor, 1, strlen($grantor) - 2); |
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208 | $grantor = str_replace('""', '"', $grantor); |
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209 | } |
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210 | $row[3] = $grantor; |
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211 | |||
212 | break; |
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213 | } else { |
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214 | if (!isset($this->privmap[$char])) { |
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215 | return -3; |
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216 | } |
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217 | |||
218 | $row[2][] = $this->privmap[$char]; |
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219 | } |
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220 | } |
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221 | |||
222 | // Append row to temp |
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223 | $temp[] = $row; |
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224 | } |
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225 | |||
226 | return $temp; |
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227 | } |
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228 | |||
229 | /** |
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230 | * Grants a privilege to a user, group or public. |
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231 | * |
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232 | * @param string $mode 'GRANT' or 'REVOKE'; |
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233 | * @param mixed $type The type of object |
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234 | * @param string $object The name of the object |
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235 | * @param bool $public True to grant to public, false otherwise |
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236 | * @param mixed $usernames the array of usernames to grant privs to |
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237 | * @param mixed $groupnames the array of group names to grant privs to |
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238 | * @param mixed $privileges The array of privileges to grant (eg. ('SELECT', 'ALL PRIVILEGES', etc.) ) |
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239 | * @param bool $grantoption True if has grant option, false otherwise |
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240 | * @param bool $cascade True for cascade revoke, false otherwise |
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241 | * @param string $table the column's table if type=column |
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242 | * |
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243 | * @return int 0 if operation was successful |
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244 | */ |
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245 | public function setPrivileges( |
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374 | } |
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375 | |||
376 | abstract public function fieldClean(&$str); |
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377 | |||
378 | abstract public function beginTransaction(); |
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379 | |||
380 | abstract public function rollbackTransaction(); |
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381 | |||
382 | abstract public function endTransaction(); |
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383 | |||
384 | abstract public function execute($sql); |
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385 | |||
386 | abstract public function setComment($obj_type, $obj_name, $table, $comment, $basetype = null); |
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387 | |||
388 | abstract public function selectSet($sql); |
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389 | |||
390 | abstract public function clean(&$str); |
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391 | |||
392 | abstract public function hasGrantOption(); |
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393 | |||
394 | abstract public function getFunction($function_oid); |
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395 | |||
396 | abstract public function fieldArrayClean(&$arr); |
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397 | } |
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398 |
This check looks for calls to methods that do not seem to exist on a given type. It looks for the method on the type itself as well as in inherited classes or implemented interfaces.
This is most likely a typographical error or the method has been renamed.