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<?php |
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namespace Sunnysideup\DatabaseShareCleanUp; |
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use SilverStripe\Control\Director; |
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use SilverStripe\Control\HTTPRequest; |
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use SilverStripe\Dev\BuildTask; |
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use Sunnysideup\DatabaseShareCleanUp\Api\Anonymiser; |
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use Sunnysideup\DatabaseShareCleanUp\Api\DatabaseActions; |
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use Sunnysideup\Flush\FlushNow; |
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class CleanUp extends BuildTask |
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{ |
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/** |
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* @var bool If set to FALSE, keep it from showing in the list |
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* and from being executable through URL or CLI. |
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*/ |
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protected $enabled = true; |
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/** |
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* @var string Shown in the overview on the {@link TaskRunner} |
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* HTML or CLI interface. Should be short and concise, no HTML allowed. |
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*/ |
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protected $title = 'Cleanup and anonymise database - CAREFUL! Data will be deleted.'; |
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/** |
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* @var string Describe the implications the task has, |
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* and the changes it makes. Accepts HTML formatting. |
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*/ |
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protected $description = 'Goes through database and deletes data that may expose personal information and bloat database.'; |
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protected $forReal = false; |
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protected $anonymise = false; |
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protected $removeObsolete = false; |
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protected $removeOldVersions = false; |
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protected $debug = false; |
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protected $emptyFields = false; |
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protected $removeRows = false; |
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protected $selectedTables = false; |
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protected $selectedTableList = []; |
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protected $data = []; |
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private static $tables_to_delete_forever = []; |
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private static $tables_to_be_cleaned = [ |
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'LoginAttempt', |
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]; |
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private static $fields_to_be_cleaned = []; |
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private static $field_table_comboes_to_be_cleaned = []; |
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private static $tables_to_keep = []; |
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private static $fields_to_keep = [ |
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'ClassName', |
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'Created', |
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'LastEdited', |
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]; |
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private static $field_table_combos_to_keep = []; |
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private static $max_table_size_in_mb = 20; |
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private static $max_column_size_in_mb = 2; |
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private static $dependencies = [ |
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'anonymiser' => '%$' . Anonymiser::class, |
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'database' => '%$' . DatabaseActions::class, |
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]; |
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private $anonymiser; |
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private $database; |
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/** |
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* Set a custom url segment (to follow dev/tasks/) |
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* |
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* @config |
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* @var string |
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*/ |
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private static $segment = 'database-share-clean-up'; |
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public function setAnonymiser($a) |
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{ |
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$this->anonymiser = $a; |
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} |
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public function setDatabase($b) |
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{ |
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$this->database = $b; |
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} |
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/** |
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* @return bool |
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*/ |
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public function isEnabled() |
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{ |
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return Director::isDev(); |
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} |
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/** |
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* Implement this method in the task subclass to |
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* execute via the TaskRunner |
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* |
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* @param HTTPRequest $request |
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*/ |
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public function run($request) |
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{ |
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$this->anonymise = (bool) $request->getVar('anonymise'); |
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$this->removeObsolete = (bool) $request->getVar('removeobsolete'); |
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$this->removeOldVersions = (bool) $request->getVar('removeoldversions'); |
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$this->removeRows = (bool) $request->getVar('removerows'); |
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$this->emptyFields = (bool) $request->getVar('emptyfields'); |
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$this->selectedTables = (bool) $request->getVar('selectedtables'); |
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$this->debug = (bool) $request->getVar('debug'); |
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$this->forReal = (bool) $request->getVar('forreal'); |
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if ($this->forReal) { |
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$this->debug = true; |
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} |
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$this->selectedTableList = $request->getVar('selectedtablelist') ?? []; |
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$this->anonymiser->setDatabaseActions($this->database); |
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$this->database->setForReal($this->forReal); |
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$this->database->setDebug($this->debug); |
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if ($this->forReal) { |
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FlushNow::do_flush('<h3>Running in FOR REAL mode</h3>', 'bad'); |
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} else { |
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FlushNow::do_flush('<h3>Not runing FOR REAL</h3>', 'good'); |
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} |
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if ($this->anonymise) { |
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$this->anonymiser->AnonymisePresets(); |
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} |
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$this->createForm(); |
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$this->runInner(); |
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$this->createTable(); |
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} |
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protected function runInner() |
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{ |
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$maxTableSize = $this->Config()->get('max_table_size_in_mb'); |
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$maxColumnSize = $this->Config()->get('max_column_size_in_mb'); |
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$tablesToDeleteForever = $this->Config()->get('tables_to_delete_forever'); |
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$tablesToKeep = $this->Config()->get('tables_to_keep'); |
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$fieldsToKeep = $this->Config()->get('fields_to_keep'); |
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$fieldTableCombosToKeep = $this->Config()->get('field_table_combos_to_keep'); |
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$tablesToBeCleaned = $this->Config()->get('tables_to_be_cleaned'); |
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$fieldsToBeCleaned = $this->Config()->get('fields_to_be_cleaned'); |
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$tableFieldCombosToBeCleaned = $this->Config()->get('field_table_comboes_to_be_cleaned'); |
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$tables = $this->database->getAllTables(); |
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foreach ($tables as $tableName) { |
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$this->data[$tableName] = [ |
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'TableName' => $tableName, |
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'SizeAfter' => 0, |
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'SizeBefore' => 0, |
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'Actions' => [], |
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]; |
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if (in_array($tableName, $tablesToKeep, true)) { |
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if ($this->debug) { |
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$this->data[$tableName]['Actions'][] = 'Skipped because it is in list of tables to keep.'; |
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} |
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continue; |
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} |
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if ($this->database->isEmptyTable($tableName)) { |
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if ($this->debug) { |
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$this->data[$tableName]['Actions'][] = 'Skipped because table is empty.'; |
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} |
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continue; |
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} |
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$this->data[$tableName]['SizeBefore'] = $this->database->getTableSizeInMegaBytes($tableName); |
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if ($this->selectedTables && ! in_array($tableName, $this->selectedTableList, true)) { |
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$this->data[$tableName]['Actions'][] = 'Skipped because it is not a selected table.'; |
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continue; |
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} |
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if ($this->removeObsolete) { |
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if (in_array($tableName, $tablesToDeleteForever, true)) { |
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$this->database->deleteTable($tableName); |
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$this->data[$tableName]['Actions'][] = 'DELETING FOREVER.'; |
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continue; |
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} |
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$outcome = $this->database->deleteObsoleteTables($tableName); |
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if ($outcome) { |
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$this->data[$tableName]['Actions'][] = 'Deleted because it is obsolete.'; |
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} |
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} |
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if ($this->removeOldVersions) { |
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$outcome = $this->database->emptyVersionedTable($tableName); |
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if ($outcome) { |
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$this->data[$tableName]['Actions'][] = 'Remove all and replace with one entry for each record.'; |
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} |
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} |
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if ($this->anonymise) { |
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$outcome = $this->anonymiser->AnonymiseTable($tableName); |
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if ($outcome) { |
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$this->data[$tableName]['Actions'][] = 'Anonymised Table.'; |
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} |
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} |
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//get fields |
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$fields = $this->database->getAllFieldsForOneTable($tableName); |
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foreach ($fields as $fieldName) { |
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if (substr($fieldName, -2) === 'ID') { |
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if ($this->debug) { |
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$this->data[$tableName]['Actions'][] = ' ... ' . $fieldName . ': skipping!'; |
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} |
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continue; |
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} |
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if (in_array($fieldName, $fieldsToKeep, true)) { |
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if ($this->debug) { |
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$this->data[$tableName]['Actions'][] = ' ... ' . $fieldName . ': skipping!'; |
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} |
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continue; |
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} |
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$combo = $tableName . '.' . $fieldName; |
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if (in_array($combo, $fieldTableCombosToKeep, true)) { |
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if ($this->debug) { |
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$this->data[$tableName]['Actions'][] = ' ... ' . $fieldName . ': skipping.'; |
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} |
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continue; |
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} |
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if ($this->anonymise) { |
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$outcome = $this->anonymiser->AnonymiseTableField($tableName, $fieldName); |
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if ($outcome) { |
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$this->data[$tableName]['Actions'][] = ' ... ' . $fieldName . ': anonymised.'; |
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} |
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} |
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if ($this->emptyFields) { |
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$columnSize = $this->database->getColumnSizeInMegabytes($tableName, $fieldName); |
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$test1 = $columnSize > $maxColumnSize; |
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$test2 = in_array($fieldName, $fieldsToBeCleaned, true); |
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$test3 = in_array($combo, $tableFieldCombosToBeCleaned, true); |
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if ($test1 || $test2 || $test3) { |
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$percentageToKeep = $test2 || $test3 ? 0 : $maxColumnSize / $columnSize; |
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$outcome = $this->database->removeOldColumnsFromTable($tableName, $fieldName, $percentageToKeep); |
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if ($outcome) { |
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$this->data[$tableName]['Actions'][] = ' ... ' . $fieldName . ': Removed most rows.'; |
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} |
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} |
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} |
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} |
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// clean table |
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if ($this->removeRows) { |
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$removeAllRows = in_array($tableName, $tablesToBeCleaned, true); |
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if ($removeAllRows) { |
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$this->database->removeOldRowsFromTable($tableName, 0.01); |
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$this->data[$tableName]['Actions'][] = 'Removed most rows.'; |
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} else { |
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$tableSize = $this->database->getTableSizeInMegaBytes($tableName); |
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if ($tableSize > $maxTableSize) { |
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$percentageToKeep = $maxTableSize / $tableSize; |
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$this->database->removeOldRowsFromTable($tableName, $percentageToKeep); |
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$this->data[$tableName]['Actions'][] = 'Removed old rows.'; |
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} |
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} |
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} |
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$this->data[$tableName]['SizeAfter'] = $this->database->getTableSizeInMegaBytes($tableName); |
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} |
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} |
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protected function createForm() |
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{ |
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$anonymise = $this->anonymise ? 'checked="checked"' : ''; |
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$removeObsolete = $this->removeObsolete ? 'checked="checked"' : ''; |
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$removeOldVersions = $this->removeOldVersions ? 'checked="checked"' : ''; |
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$removeRows = $this->removeRows ? 'checked="checked"' : ''; |
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$emptyFields = $this->emptyFields ? 'checked="checked"' : ''; |
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$selectedTables = $this->selectedTables ? 'checked="checked"' : ''; |
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$forReal = $this->forReal ? 'checked="checked"' : ''; |
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$debug = $this->debug ? 'checked="checked"' : ''; |
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echo <<<html |
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<h3>All sizes in Megabytes</h3> |
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<form method="get"> |
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<div style=" |
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background-color: pink; |
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width: 300px; |
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padding: 1vw; |
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position: fixed; |
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right: 0; |
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top: 0; |
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bottom: 0; |
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border: 1px solid red; |
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"> |
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<h4>What actions to take?</h4> |
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<div class="field" style="padding: 10px;"> |
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308
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<input type="checkbox" name="anonymise" {$anonymise} /> |
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309
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<label>anonymise</label> |
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</div> |
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311
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<div class="field" style="padding: 10px;"> |
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|
|
<input type="checkbox" name="removeoldversions" {$removeOldVersions} /> |
|
313
|
|
|
<label>remove versioned table entries</label> |
|
314
|
|
|
</div> |
|
315
|
|
|
<div class="field" style="padding: 10px;"> |
|
316
|
|
|
<input type="checkbox" name="removeobsolete" {$removeObsolete} /> |
|
317
|
|
|
<label>remove obsolete tables</label> |
|
318
|
|
|
</div> |
|
319
|
|
|
|
|
320
|
|
|
<div class="field" style="padding: 10px;"> |
|
321
|
|
|
<input type="checkbox" name="emptyfields" {$emptyFields} /> |
|
322
|
|
|
<label>empty large fields</label> |
|
323
|
|
|
</div> |
|
324
|
|
|
|
|
325
|
|
|
<div class="field" style="padding: 10px;"> |
|
326
|
|
|
<input type="checkbox" name="removerows" {$removeRows} /> |
|
327
|
|
|
<label>remove old rows if there are too many (not recommended)</label> |
|
328
|
|
|
</div> |
|
329
|
|
|
|
|
330
|
|
|
<hr /> |
|
331
|
|
|
<h4>How to apply?</h4> |
|
332
|
|
|
<div class="field" style="padding: 10px;"> |
|
333
|
|
|
<input type="checkbox" name="selectedtables" {$selectedTables} /> |
|
334
|
|
|
<label>apply to selected tables only?</label> |
|
335
|
|
|
</div> |
|
336
|
|
|
<div class="field" style="padding: 10px;"> |
|
337
|
|
|
<input type="checkbox" name="forreal" {$forReal} /> |
|
338
|
|
|
<label>do it for real?</label> |
|
339
|
|
|
</div> |
|
340
|
|
|
<hr /> |
|
341
|
|
|
<h4>See more info?</h4> |
|
342
|
|
|
<div class="field" style="padding: 10px;"> |
|
343
|
|
|
<input type="checkbox" name="debug" {$debug} /> |
|
344
|
|
|
<label>debug</label> |
|
345
|
|
|
</div> |
|
346
|
|
|
<hr /> |
|
347
|
|
|
<div class="field" style="padding: 10px;"> |
|
348
|
|
|
<input type="submit" value="let's do it!" /> |
|
349
|
|
|
</div> |
|
350
|
|
|
</div> |
|
351
|
|
|
|
|
352
|
|
|
|
|
353
|
|
|
html; |
|
354
|
|
|
} |
|
355
|
|
|
|
|
356
|
|
|
protected function createTable() |
|
357
|
|
|
{ |
|
358
|
|
|
$tbody = ''; |
|
359
|
|
|
$totalSizeBefore = 0; |
|
360
|
|
|
$totalSizeAfter = 0; |
|
361
|
|
|
usort( |
|
362
|
|
|
$this->data, |
|
363
|
|
|
function ($a, $b) { |
|
364
|
|
|
return $a['SizeAfter'] <=> $b['SizeAfter']; |
|
365
|
|
|
} |
|
366
|
|
|
); |
|
367
|
|
|
foreach ($this->data as $data) { |
|
368
|
|
|
$totalSizeBefore += $data['SizeBefore']; |
|
369
|
|
|
$totalSizeAfter += $data['SizeAfter']; |
|
370
|
|
|
$actions = ''; |
|
371
|
|
|
if (count($data['Actions'])) { |
|
372
|
|
|
$actions = ' |
|
373
|
|
|
<ul> |
|
374
|
|
|
<li> |
|
375
|
|
|
' . implode('</li><li>', $data['Actions']) . ' |
|
376
|
|
|
</li> |
|
377
|
|
|
</ul>'; |
|
378
|
|
|
} |
|
379
|
|
|
$tableList = empty($this->selectedTableList[$data['TableName']]) ? '' : 'checked="checked"'; |
|
380
|
|
|
$tbody .= ' |
|
381
|
|
|
<tr> |
|
382
|
|
|
<td> |
|
383
|
|
|
<input type="checkbox" name="selectedtablelist[]" value="' . $data['TableName'] . '" ' . $tableList . ' /> |
|
384
|
|
|
</td> |
|
385
|
|
|
<td> |
|
386
|
|
|
' . $data['TableName'] . ' |
|
387
|
|
|
' . $actions . ' |
|
388
|
|
|
</td> |
|
389
|
|
|
<td style="text-align: center;"> |
|
390
|
|
|
' . $data['SizeBefore'] . ' |
|
391
|
|
|
</td> |
|
392
|
|
|
<td style="text-align: center;"> |
|
393
|
|
|
' . $data['SizeAfter'] . ' |
|
394
|
|
|
</td> |
|
395
|
|
|
</tr>'; |
|
396
|
|
|
} |
|
397
|
|
|
$tfoot = ' |
|
398
|
|
|
<tr> |
|
399
|
|
|
<th> |
|
400
|
|
|
|
|
401
|
|
|
</th> |
|
402
|
|
|
<th> |
|
403
|
|
|
TOTAL |
|
404
|
|
|
</th> |
|
405
|
|
|
<th> |
|
406
|
|
|
' . $totalSizeBefore . ' |
|
407
|
|
|
</th> |
|
408
|
|
|
<th> |
|
409
|
|
|
' . $totalSizeAfter . ' |
|
410
|
|
|
</th> |
|
411
|
|
|
</tr> |
|
412
|
|
|
'; |
|
413
|
|
|
echo ' |
|
414
|
|
|
<table border="1" style="width: calc(100% - 380px);"> |
|
415
|
|
|
<thead> |
|
416
|
|
|
<tr> |
|
417
|
|
|
<th width="5%"> |
|
418
|
|
|
Select |
|
419
|
|
|
</th> |
|
420
|
|
|
<th width="65%"> |
|
421
|
|
|
Table Name |
|
422
|
|
|
</th> |
|
423
|
|
|
<th style="text-align: center;" width="15%"> |
|
424
|
|
|
Before |
|
425
|
|
|
</th> |
|
426
|
|
|
<th style="text-align: center;" width="15%"> |
|
427
|
|
|
After |
|
428
|
|
|
</th> |
|
429
|
|
|
</tr> |
|
430
|
|
|
</thead> |
|
431
|
|
|
<tfoot>' . $tfoot . '</tfoot> |
|
432
|
|
|
<tbody>' . $tbody . '</tbody> |
|
433
|
|
|
</table> |
|
434
|
|
|
</form>'; |
|
435
|
|
|
} |
|
436
|
|
|
} |
|
437
|
|
|
|