nextcloud /
server
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 Setup 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 Setup, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 52 | class Setup { |
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| 53 | /** @var SystemConfig */ |
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| 54 | protected $config; |
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| 55 | /** @var IniGetWrapper */ |
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| 56 | protected $iniWrapper; |
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| 57 | /** @var IL10N */ |
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| 58 | protected $l10n; |
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| 59 | /** @var Defaults */ |
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| 60 | protected $defaults; |
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| 61 | /** @var ILogger */ |
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| 62 | protected $logger; |
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| 63 | /** @var ISecureRandom */ |
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| 64 | protected $random; |
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| 65 | |||
| 66 | /** |
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| 67 | * @param SystemConfig $config |
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| 68 | * @param IniGetWrapper $iniWrapper |
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| 69 | * @param IL10N $l10n |
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| 70 | * @param Defaults $defaults |
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| 71 | * @param ILogger $logger |
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| 72 | * @param ISecureRandom $random |
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| 73 | */ |
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| 74 | View Code Duplication | public function __construct(SystemConfig $config, |
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| 75 | IniGetWrapper $iniWrapper, |
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| 76 | IL10N $l10n, |
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| 77 | Defaults $defaults, |
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| 78 | ILogger $logger, |
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| 79 | ISecureRandom $random |
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| 80 | ) { |
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| 81 | $this->config = $config; |
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| 82 | $this->iniWrapper = $iniWrapper; |
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| 83 | $this->l10n = $l10n; |
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| 84 | $this->defaults = $defaults; |
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| 85 | $this->logger = $logger; |
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| 86 | $this->random = $random; |
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| 87 | } |
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| 88 | |||
| 89 | static protected $dbSetupClasses = [ |
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| 90 | 'mysql' => \OC\Setup\MySQL::class, |
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| 91 | 'pgsql' => \OC\Setup\PostgreSQL::class, |
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| 92 | 'oci' => \OC\Setup\OCI::class, |
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| 93 | 'sqlite' => \OC\Setup\Sqlite::class, |
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| 94 | 'sqlite3' => \OC\Setup\Sqlite::class, |
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| 95 | ]; |
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| 96 | |||
| 97 | /** |
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| 98 | * Wrapper around the "class_exists" PHP function to be able to mock it |
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| 99 | * @param string $name |
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| 100 | * @return bool |
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| 101 | */ |
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| 102 | protected function class_exists($name) { |
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| 103 | return class_exists($name); |
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| 104 | } |
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| 105 | |||
| 106 | /** |
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| 107 | * Wrapper around the "is_callable" PHP function to be able to mock it |
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| 108 | * @param string $name |
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| 109 | * @return bool |
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| 110 | */ |
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| 111 | protected function is_callable($name) { |
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| 112 | return is_callable($name); |
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| 113 | } |
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| 114 | |||
| 115 | /** |
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| 116 | * Wrapper around \PDO::getAvailableDrivers |
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| 117 | * |
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| 118 | * @return array |
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| 119 | */ |
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| 120 | protected function getAvailableDbDriversForPdo() { |
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| 121 | return \PDO::getAvailableDrivers(); |
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| 122 | } |
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| 123 | |||
| 124 | /** |
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| 125 | * Get the available and supported databases of this instance |
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| 126 | * |
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| 127 | * @param bool $allowAllDatabases |
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| 128 | * @return array |
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| 129 | * @throws Exception |
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| 130 | */ |
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| 131 | public function getSupportedDatabases($allowAllDatabases = false) { |
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| 132 | $availableDatabases = [ |
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| 133 | 'sqlite' => [ |
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| 134 | 'type' => 'pdo', |
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| 135 | 'call' => 'sqlite', |
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| 136 | 'name' => 'SQLite', |
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| 137 | ], |
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| 138 | 'mysql' => [ |
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| 139 | 'type' => 'pdo', |
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| 140 | 'call' => 'mysql', |
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| 141 | 'name' => 'MySQL/MariaDB', |
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| 142 | ], |
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| 143 | 'pgsql' => [ |
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| 144 | 'type' => 'pdo', |
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| 145 | 'call' => 'pgsql', |
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| 146 | 'name' => 'PostgreSQL', |
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| 147 | ], |
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| 148 | 'oci' => [ |
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| 149 | 'type' => 'function', |
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| 150 | 'call' => 'oci_connect', |
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| 151 | 'name' => 'Oracle', |
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| 152 | ], |
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| 153 | ]; |
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| 154 | if ($allowAllDatabases) { |
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| 155 | $configuredDatabases = array_keys($availableDatabases); |
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| 156 | } else { |
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| 157 | $configuredDatabases = $this->config->getValue('supportedDatabases', |
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| 158 | ['sqlite', 'mysql', 'pgsql']); |
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| 159 | } |
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| 160 | if(!is_array($configuredDatabases)) { |
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| 161 | throw new Exception('Supported databases are not properly configured.'); |
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| 162 | } |
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| 163 | |||
| 164 | $supportedDatabases = array(); |
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| 165 | |||
| 166 | foreach($configuredDatabases as $database) { |
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| 167 | if(array_key_exists($database, $availableDatabases)) { |
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| 168 | $working = false; |
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| 169 | $type = $availableDatabases[$database]['type']; |
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| 170 | $call = $availableDatabases[$database]['call']; |
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| 171 | |||
| 172 | if ($type === 'function') { |
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| 173 | $working = $this->is_callable($call); |
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| 174 | } elseif($type === 'pdo') { |
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| 175 | $working = in_array($call, $this->getAvailableDbDriversForPdo(), true); |
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| 176 | } |
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| 177 | if($working) { |
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| 178 | $supportedDatabases[$database] = $availableDatabases[$database]['name']; |
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| 179 | } |
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| 180 | } |
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| 181 | } |
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| 182 | |||
| 183 | return $supportedDatabases; |
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| 184 | } |
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| 185 | |||
| 186 | /** |
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| 187 | * Gathers system information like database type and does |
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| 188 | * a few system checks. |
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| 189 | * |
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| 190 | * @return array of system info, including an "errors" value |
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| 191 | * in case of errors/warnings |
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| 192 | */ |
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| 193 | public function getSystemInfo($allowAllDatabases = false) { |
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| 194 | $databases = $this->getSupportedDatabases($allowAllDatabases); |
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| 195 | |||
| 196 | $dataDir = $this->config->getValue('datadirectory', \OC::$SERVERROOT.'/data'); |
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| 197 | |||
| 198 | $errors = []; |
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| 199 | |||
| 200 | // Create data directory to test whether the .htaccess works |
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| 201 | // Notice that this is not necessarily the same data directory as the one |
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| 202 | // that will effectively be used. |
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| 203 | if(!file_exists($dataDir)) { |
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| 204 | @mkdir($dataDir); |
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| 205 | } |
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| 206 | $htAccessWorking = true; |
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| 207 | if (is_dir($dataDir) && is_writable($dataDir)) { |
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| 208 | // Protect data directory here, so we can test if the protection is working |
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| 209 | self::protectDataDirectory(); |
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| 210 | |||
| 211 | try { |
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| 212 | $util = new \OC_Util(); |
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| 213 | $htAccessWorking = $util->isHtaccessWorking(\OC::$server->getConfig()); |
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| 214 | } catch (\OC\HintException $e) { |
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| 215 | $errors[] = [ |
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| 216 | 'error' => $e->getMessage(), |
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| 217 | 'hint' => $e->getHint(), |
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| 218 | ]; |
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| 219 | $htAccessWorking = false; |
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| 220 | } |
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| 221 | } |
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| 222 | |||
| 223 | if (\OC_Util::runningOnMac()) { |
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| 224 | $errors[] = [ |
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| 225 | 'error' => $this->l10n->t( |
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| 226 | 'Mac OS X is not supported and %s will not work properly on this platform. ' . |
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| 227 | 'Use it at your own risk! ', |
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| 228 | [$this->defaults->getName()] |
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| 229 | ), |
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| 230 | 'hint' => $this->l10n->t('For the best results, please consider using a GNU/Linux server instead.'), |
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| 231 | ]; |
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| 232 | } |
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| 233 | |||
| 234 | if($this->iniWrapper->getString('open_basedir') !== '' && PHP_INT_SIZE === 4) { |
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| 235 | $errors[] = [ |
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| 236 | 'error' => $this->l10n->t( |
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| 237 | 'It seems that this %s instance is running on a 32-bit PHP environment and the open_basedir has been configured in php.ini. ' . |
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| 238 | 'This will lead to problems with files over 4 GB and is highly discouraged.', |
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| 239 | [$this->defaults->getName()] |
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| 240 | ), |
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| 241 | 'hint' => $this->l10n->t('Please remove the open_basedir setting within your php.ini or switch to 64-bit PHP.'), |
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| 242 | ]; |
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| 243 | } |
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| 244 | |||
| 245 | return array( |
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| 246 | 'hasSQLite' => isset($databases['sqlite']), |
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| 247 | 'hasMySQL' => isset($databases['mysql']), |
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| 248 | 'hasPostgreSQL' => isset($databases['pgsql']), |
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| 249 | 'hasOracle' => isset($databases['oci']), |
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| 250 | 'databases' => $databases, |
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| 251 | 'directory' => $dataDir, |
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| 252 | 'htaccessWorking' => $htAccessWorking, |
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| 253 | 'errors' => $errors, |
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| 254 | ); |
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| 255 | } |
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| 256 | |||
| 257 | /** |
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| 258 | * @param $options |
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| 259 | * @return array |
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| 260 | */ |
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| 261 | public function install($options) { |
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| 262 | $l = $this->l10n; |
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| 263 | |||
| 264 | $error = array(); |
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| 265 | $dbType = $options['dbtype']; |
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| 266 | |||
| 267 | if(empty($options['adminlogin'])) { |
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| 268 | $error[] = $l->t('Set an admin username.'); |
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| 269 | } |
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| 270 | if(empty($options['adminpass'])) { |
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| 271 | $error[] = $l->t('Set an admin password.'); |
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| 272 | } |
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| 273 | if(empty($options['directory'])) { |
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| 274 | $options['directory'] = \OC::$SERVERROOT."/data"; |
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| 275 | } |
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| 276 | |||
| 277 | if (!isset(self::$dbSetupClasses[$dbType])) { |
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| 278 | $dbType = 'sqlite'; |
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| 279 | } |
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| 280 | |||
| 281 | $username = htmlspecialchars_decode($options['adminlogin']); |
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| 282 | $password = htmlspecialchars_decode($options['adminpass']); |
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| 283 | $dataDir = htmlspecialchars_decode($options['directory']); |
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| 284 | |||
| 285 | $class = self::$dbSetupClasses[$dbType]; |
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| 286 | /** @var \OC\Setup\AbstractDatabase $dbSetup */ |
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| 287 | $dbSetup = new $class($l, $this->config, $this->logger, $this->random); |
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| 288 | $error = array_merge($error, $dbSetup->validate($options)); |
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| 289 | |||
| 290 | // validate the data directory |
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| 291 | if ((!is_dir($dataDir) && !mkdir($dataDir)) || !is_writable($dataDir)) { |
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| 292 | $error[] = $l->t("Can't create or write into the data directory %s", array($dataDir)); |
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| 293 | } |
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| 294 | |||
| 295 | if (!$this->validateDatabaseHost($options['dbhost'])) { |
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| 296 | $error[] = $l->t('Given database host is invalid and must not contain the port: %s', [$options['dbhost']]); |
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| 297 | } |
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| 298 | |||
| 299 | if (!empty($error)) { |
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| 300 | return $error; |
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| 301 | } |
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| 302 | |||
| 303 | $request = \OC::$server->getRequest(); |
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| 304 | |||
| 305 | //no errors, good |
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| 306 | if(isset($options['trusted_domains']) |
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| 307 | && is_array($options['trusted_domains'])) { |
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| 308 | $trustedDomains = $options['trusted_domains']; |
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| 309 | } else { |
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| 310 | $trustedDomains = [$request->getInsecureServerHost()]; |
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| 311 | } |
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| 312 | |||
| 313 | //use sqlite3 when available, otherwise sqlite2 will be used. |
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| 314 | if ($dbType === 'sqlite' && class_exists('SQLite3')) { |
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| 315 | $dbType = 'sqlite3'; |
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| 316 | } |
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| 317 | |||
| 318 | //generate a random salt that is used to salt the local user passwords |
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| 319 | $salt = $this->random->generate(30); |
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| 320 | // generate a secret |
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| 321 | $secret = $this->random->generate(48); |
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| 322 | |||
| 323 | //write the config file |
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| 324 | $this->config->setValues([ |
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| 325 | 'passwordsalt' => $salt, |
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| 326 | 'secret' => $secret, |
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| 327 | 'trusted_domains' => $trustedDomains, |
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| 328 | 'datadirectory' => $dataDir, |
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| 329 | 'overwrite.cli.url' => $request->getServerProtocol() . '://' . $request->getInsecureServerHost() . \OC::$WEBROOT, |
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| 330 | 'dbtype' => $dbType, |
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| 331 | 'version' => implode('.', \OCP\Util::getVersion()), |
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| 332 | ]); |
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| 333 | |||
| 334 | try { |
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| 335 | $dbSetup->initialize($options); |
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| 336 | $dbSetup->setupDatabase($username); |
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| 337 | // apply necessary migrations |
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| 338 | $dbSetup->runMigrations(); |
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| 339 | } catch (\OC\DatabaseSetupException $e) { |
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| 340 | $error[] = [ |
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| 341 | 'error' => $e->getMessage(), |
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| 342 | 'hint' => $e->getHint(), |
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| 343 | ]; |
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| 344 | return $error; |
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| 345 | } catch (Exception $e) { |
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| 346 | $error[] = [ |
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| 347 | 'error' => 'Error while trying to create admin user: ' . $e->getMessage(), |
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| 348 | 'hint' => '', |
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| 349 | ]; |
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| 350 | return $error; |
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| 351 | } |
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| 352 | |||
| 353 | //create the user and group |
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| 354 | $user = null; |
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| 355 | try { |
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| 356 | $user = \OC::$server->getUserManager()->createUser($username, $password); |
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| 357 | if (!$user) { |
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| 358 | $error[] = "User <$username> could not be created."; |
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| 359 | } |
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| 360 | } catch(Exception $exception) { |
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| 361 | $error[] = $exception->getMessage(); |
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| 362 | } |
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| 363 | |||
| 364 | if (empty($error)) { |
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| 365 | $config = \OC::$server->getConfig(); |
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| 366 | $config->setAppValue('core', 'installedat', microtime(true)); |
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| 367 | $config->setAppValue('core', 'lastupdatedat', microtime(true)); |
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| 368 | $config->setAppValue('core', 'vendor', $this->getVendor()); |
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| 369 | |||
| 370 | $group =\OC::$server->getGroupManager()->createGroup('admin'); |
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| 371 | $group->addUser($user); |
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| 372 | |||
| 373 | // Install shipped apps and specified app bundles |
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| 374 | Installer::installShippedApps(); |
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| 375 | $installer = new Installer( |
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| 376 | \OC::$server->getAppFetcher(), |
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| 377 | \OC::$server->getHTTPClientService(), |
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| 378 | \OC::$server->getTempManager(), |
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| 379 | \OC::$server->getLogger(), |
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| 380 | \OC::$server->getConfig() |
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| 381 | ); |
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| 382 | $bundleFetcher = new BundleFetcher(\OC::$server->getL10N('lib')); |
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| 383 | $defaultInstallationBundles = $bundleFetcher->getDefaultInstallationBundle(); |
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| 384 | foreach($defaultInstallationBundles as $bundle) { |
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| 385 | try { |
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| 386 | $installer->installAppBundle($bundle); |
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| 387 | } catch (Exception $e) {} |
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| 388 | } |
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| 389 | |||
| 390 | // create empty file in data dir, so we can later find |
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| 391 | // out that this is indeed an ownCloud data directory |
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| 392 | file_put_contents($config->getSystemValue('datadirectory', \OC::$SERVERROOT.'/data').'/.ocdata', ''); |
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| 393 | |||
| 394 | // Update .htaccess files |
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| 395 | self::updateHtaccess(); |
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| 396 | self::protectDataDirectory(); |
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| 397 | |||
| 398 | self::installBackgroundJobs(); |
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| 399 | |||
| 400 | //and we are done |
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| 401 | $config->setSystemValue('installed', true); |
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| 402 | |||
| 403 | // Create a session token for the newly created user |
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| 404 | // The token provider requires a working db, so it's not injected on setup |
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| 405 | /* @var $userSession User\Session */ |
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| 406 | $userSession = \OC::$server->getUserSession(); |
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| 407 | $defaultTokenProvider = \OC::$server->query(DefaultTokenProvider::class); |
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| 408 | $userSession->setTokenProvider($defaultTokenProvider); |
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| 409 | $userSession->login($username, $password); |
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| 410 | $userSession->createSessionToken($request, $userSession->getUser()->getUID(), $username, $password); |
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| 411 | } |
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| 412 | |||
| 413 | return $error; |
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| 414 | } |
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| 415 | |||
| 416 | /** |
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| 417 | * @param string $host |
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| 418 | * @return bool |
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| 419 | */ |
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| 420 | protected function validateDatabaseHost($host) { |
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| 421 | if (strpos($host, ':') === false) { |
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| 422 | return true; |
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| 423 | } |
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| 424 | |||
| 425 | return filter_var($host, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) !== false; |
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| 426 | } |
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| 427 | |||
| 428 | public static function installBackgroundJobs() { |
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| 429 | \OC::$server->getJobList()->add(DefaultTokenCleanupJob::class); |
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| 430 | } |
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| 431 | |||
| 432 | /** |
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| 433 | * @return string Absolute path to htaccess |
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| 434 | */ |
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| 435 | private function pathToHtaccess() { |
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| 436 | return \OC::$SERVERROOT.'/.htaccess'; |
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| 437 | } |
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| 438 | |||
| 439 | /** |
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| 440 | * Append the correct ErrorDocument path for Apache hosts |
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| 441 | * @return bool True when success, False otherwise |
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| 442 | */ |
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| 443 | public static function updateHtaccess() { |
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| 444 | $config = \OC::$server->getSystemConfig(); |
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| 445 | |||
| 446 | // For CLI read the value from overwrite.cli.url |
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| 447 | if(\OC::$CLI) { |
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| 448 | $webRoot = $config->getValue('overwrite.cli.url', ''); |
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| 449 | if($webRoot === '') { |
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| 450 | return false; |
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| 451 | } |
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| 452 | $webRoot = parse_url($webRoot, PHP_URL_PATH); |
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| 453 | $webRoot = rtrim($webRoot, '/'); |
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| 454 | } else { |
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| 455 | $webRoot = !empty(\OC::$WEBROOT) ? \OC::$WEBROOT : '/'; |
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| 456 | } |
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| 457 | |||
| 458 | $setupHelper = new \OC\Setup($config, \OC::$server->getIniWrapper(), |
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| 459 | \OC::$server->getL10N('lib'), \OC::$server->query(Defaults::class), \OC::$server->getLogger(), |
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| 460 | \OC::$server->getSecureRandom()); |
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| 461 | |||
| 462 | $htaccessContent = file_get_contents($setupHelper->pathToHtaccess()); |
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| 463 | $content = "#### DO NOT CHANGE ANYTHING ABOVE THIS LINE ####\n"; |
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| 464 | $htaccessContent = explode($content, $htaccessContent, 2)[0]; |
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| 465 | |||
| 466 | //custom 403 error page |
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| 467 | $content.= "\nErrorDocument 403 ".$webRoot."/"; |
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| 468 | |||
| 469 | //custom 404 error page |
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| 470 | $content.= "\nErrorDocument 404 ".$webRoot."/"; |
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| 471 | |||
| 472 | // Add rewrite rules if the RewriteBase is configured |
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| 473 | $rewriteBase = $config->getValue('htaccess.RewriteBase', ''); |
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| 474 | if($rewriteBase !== '') { |
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| 475 | $content .= "\n<IfModule mod_rewrite.c>"; |
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| 476 | $content .= "\n Options -MultiViews"; |
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| 477 | $content .= "\n RewriteRule ^core/js/oc.js$ index.php [PT,E=PATH_INFO:$1]"; |
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| 478 | $content .= "\n RewriteRule ^core/preview.png$ index.php [PT,E=PATH_INFO:$1]"; |
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| 479 | $content .= "\n RewriteCond %{REQUEST_FILENAME} !\\.(css|js|svg|gif|png|html|ttf|woff|ico|jpg|jpeg)$"; |
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| 480 | $content .= "\n RewriteCond %{REQUEST_FILENAME} !core/img/favicon.ico$"; |
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| 481 | $content .= "\n RewriteCond %{REQUEST_FILENAME} !core/img/manifest.json$"; |
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| 482 | $content .= "\n RewriteCond %{REQUEST_FILENAME} !/remote.php"; |
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| 483 | $content .= "\n RewriteCond %{REQUEST_FILENAME} !/public.php"; |
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| 484 | $content .= "\n RewriteCond %{REQUEST_FILENAME} !/cron.php"; |
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| 485 | $content .= "\n RewriteCond %{REQUEST_FILENAME} !/core/ajax/update.php"; |
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| 486 | $content .= "\n RewriteCond %{REQUEST_FILENAME} !/status.php"; |
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| 487 | $content .= "\n RewriteCond %{REQUEST_FILENAME} !/ocs/v1.php"; |
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| 488 | $content .= "\n RewriteCond %{REQUEST_FILENAME} !/ocs/v2.php"; |
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| 489 | $content .= "\n RewriteCond %{REQUEST_FILENAME} !/robots.txt"; |
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| 490 | $content .= "\n RewriteCond %{REQUEST_FILENAME} !/updater/"; |
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| 491 | $content .= "\n RewriteCond %{REQUEST_FILENAME} !/ocs-provider/"; |
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| 492 | $content .= "\n RewriteCond %{REQUEST_URI} !^/.well-known/acme-challenge/.*"; |
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| 493 | $content .= "\n RewriteRule . index.php [PT,E=PATH_INFO:$1]"; |
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| 494 | $content .= "\n RewriteBase " . $rewriteBase; |
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| 495 | $content .= "\n <IfModule mod_env.c>"; |
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| 496 | $content .= "\n SetEnv front_controller_active true"; |
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| 497 | $content .= "\n <IfModule mod_dir.c>"; |
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| 498 | $content .= "\n DirectorySlash off"; |
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| 499 | $content .= "\n </IfModule>"; |
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| 500 | $content .= "\n </IfModule>"; |
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| 501 | $content .= "\n</IfModule>"; |
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| 502 | } |
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| 503 | |||
| 504 | if ($content !== '') { |
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| 505 | //suppress errors in case we don't have permissions for it |
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| 506 | return (bool) @file_put_contents($setupHelper->pathToHtaccess(), $htaccessContent.$content . "\n"); |
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| 507 | } |
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| 508 | |||
| 509 | return false; |
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| 510 | } |
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| 511 | |||
| 512 | public static function protectDataDirectory() { |
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| 534 | |||
| 535 | /** |
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| 536 | * Return vendor from which this version was published |
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| 537 | * |
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| 538 | * @return string Get the vendor |
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| 539 | * |
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| 540 | * Copy of \OC\Updater::getVendor() |
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| 541 | */ |
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| 542 | private function getVendor() { |
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| 548 | } |
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| 549 |
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If you suppress an error, we recommend checking for the error condition explicitly: