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<?php
declare(strict_types=1);
namespace PhpMyAdmin;
use PhpMyAdmin\ConfigStorage\Features\DisplayFeature;
use PhpMyAdmin\ConfigStorage\Features\RelationFeature;
use PhpMyAdmin\ConfigStorage\Features\UiPreferencesFeature;
use PhpMyAdmin\ConfigStorage\Relation;
use PhpMyAdmin\Html\Generator;
use PhpMyAdmin\Html\MySQLDocumentation;
use PhpMyAdmin\Plugins\Export\ExportSql;
use PhpMyAdmin\Query\Compatibility;
use PhpMyAdmin\Query\Generator as QueryGenerator;
use PhpMyAdmin\SqlParser\Components\Expression;
use PhpMyAdmin\SqlParser\Components\OptionsArray;
use PhpMyAdmin\SqlParser\Context;
use PhpMyAdmin\SqlParser\Parser;
use PhpMyAdmin\SqlParser\Statements\AlterStatement;
use PhpMyAdmin\SqlParser\Statements\CreateStatement;
use PhpMyAdmin\SqlParser\Statements\DropStatement;
use PhpMyAdmin\SqlParser\Utils\Table as TableUtils;
use Stringable;
use function __;
use function array_key_exists;
use function array_keys;
use function array_map;
use function array_merge;
use function count;
use function end;
use function explode;
use function htmlspecialchars;
use function implode;
use function in_array;
use function is_array;
use function is_string;
use function json_decode;
use function json_encode;
use function mb_stripos;
use function mb_strlen;
use function mb_substr;
use function preg_match;
use function preg_replace;
use function rtrim;
use function sprintf;
use function str_contains;
use function str_replace;
use function stripos;
use function strlen;
use function strtolower;
use function strtoupper;
use function substr;
use function substr_compare;
use function trigger_error;
use function trim;
use const E_USER_WARNING;
/**
* Handles everything related to tables
*
* @todo make use of Message and Error
*/
class Table implements Stringable
{
/**
* UI preferences properties
*/
public const PROP_SORTED_COLUMN = 'sorted_col';
public const PROP_COLUMN_ORDER = 'col_order';
public const PROP_COLUMN_VISIB = 'col_visib';
/** @var string engine (innodb, myisam, bdb, ...) */
public $engine = '';
/** @var string type (view, base table, system view) */
public $type = '';
/** @var array UI preferences */
public $uiprefs = [];
/** @var array errors occurred */
public $errors = [];
/** @var array messages */
public $messages = [];
/** @var string table name */
protected $name = '';
/** @var string database name */
protected $dbName = '';
/** @var DatabaseInterface */
protected $dbi;
/** @var Relation */
private $relation;
/**
* @param string $tableName table name
* @param string $dbName database name
* @param DatabaseInterface|null $dbi database interface for the table
*/
public function __construct($tableName, $dbName, ?DatabaseInterface $dbi = null)
{
if (empty($dbi)) {
$dbi = $GLOBALS['dbi'];
}
$this->dbi = $dbi;
$this->name = $tableName;
$this->dbName = $dbName;
$this->relation = new Relation($this->dbi);
}
/**
* returns table name
*
* @see Table::getName()
*/
public function __toString(): string
{
return $this->getName();
}
/**
* Table getter
*
* @param string $tableName table name
* @param string $dbName database name
* @param DatabaseInterface|null $dbi database interface for the table
*
* @return Table
*/
public static function get($tableName, $dbName, ?DatabaseInterface $dbi = null)
{
return new Table($tableName, $dbName, $dbi);
}
/**
* return the last error
*
* @return string the last error
*/
public function getLastError()
{
return end($this->errors);
}
/**
* return the last message
*
* @return string the last message
*/
public function getLastMessage()
{
return end($this->messages);
}
/**
* returns table name
*
* @param bool $backquoted whether to quote name with backticks ``
*
* @return string table name
*/
public function getName($backquoted = false)
{
if ($backquoted) {
return Util::backquote($this->name);
}
return $this->name;
}
/**
* returns database name for this table
*
* @param bool $backquoted whether to quote name with backticks ``
*
* @return string database name for this table
*/
public function getDbName($backquoted = false)
{
if ($backquoted) {
return Util::backquote($this->dbName);
}
return $this->dbName;
}
/**
* returns full name for table, including database name
*
* @param bool $backquoted whether to quote name with backticks ``
*
* @return string
*/
public function getFullName($backquoted = false)
{
return $this->getDbName($backquoted) . '.'
. $this->getName($backquoted);
}
/**
* Checks the storage engine used to create table
*
* @param array|string $engine Checks the table engine against an
* array of engine strings or a single string, should be uppercase
*/
public function isEngine($engine): bool
{
$tableStorageEngine = $this->getStorageEngine();
if (is_array($engine)) {
foreach ($engine as $e) {
if ($e == $tableStorageEngine) {
return true;
}
}
return false;
}
return $tableStorageEngine == $engine;
}
/**
* returns whether the table is actually a view
*/
public function isView(): bool
{
$db = $this->dbName;
$table = $this->name;
if (empty($db) || empty($table)) {
return false;
}
// use cached data or load information with SHOW command
if (
$this->dbi->getCache()->getCachedTableContent([$db, $table]) != null
|| $GLOBALS['cfg']['Server']['DisableIS']
) {
$type = $this->getStatusInfo('TABLE_TYPE');
return $type === 'VIEW' || $type === 'SYSTEM VIEW';
}
// information_schema tables are 'SYSTEM VIEW's
if ($db === 'information_schema') {
return true;
}
// query information_schema
$result = $this->dbi->fetchResult(
'SELECT TABLE_NAME'
. ' FROM information_schema.VIEWS'
. ' WHERE TABLE_SCHEMA = \'' . $this->dbi->escapeString((string) $db) . '\''
. ' AND TABLE_NAME = \'' . $this->dbi->escapeString((string) $table) . '\''
);
return (bool) $result;
}
/**
* Returns whether the table is actually an updatable view
*/
public function isUpdatableView(): bool
{
if (empty($this->dbName) || empty($this->name)) {
return false;
}
$result = $this->dbi->fetchResult(
'SELECT TABLE_NAME'
. ' FROM information_schema.VIEWS'
. ' WHERE TABLE_SCHEMA = \'' . $this->dbi->escapeString($this->dbName) . '\''
. ' AND TABLE_NAME = \'' . $this->dbi->escapeString($this->name) . '\''
. ' AND IS_UPDATABLE = \'YES\''
);
return (bool) $result;
}
/**
* Checks if this is a merge table
*
* If the ENGINE of the table is MERGE or MRG_MYISAM (alias),
* this is a merge table.
*/
public function isMerge(): bool
{
return $this->isEngine(['MERGE', 'MRG_MYISAM']);
}
/**
* Returns full table status info, or specific if $info provided
* this info is collected from information_schema
*
* @param string $info specific information to be fetched
* @param bool $forceRead read new rather than serving from cache
* @param bool $disableError if true, disables error message
*
* @return mixed
*
* @todo DatabaseInterface::getTablesFull needs to be merged
* somehow into this class or at least better documented
*/
public function getStatusInfo(
$info = null,
$forceRead = false,
$disableError = false
) {
$db = $this->dbName;
$table = $this->name;
if (! empty($_SESSION['is_multi_query'])) {
$disableError = true;
}
$cachedResult = $this->dbi->getCache()->getCachedTableContent([$db, $table]);
// sometimes there is only one entry (ExactRows) so
// we have to get the table's details
if ($cachedResult === null || $forceRead || count($cachedResult) === 1) {
$this->dbi->getTablesFull($db, $table);
$cachedResult = $this->dbi->getCache()->getCachedTableContent([$db, $table]);
}
if ($cachedResult === null) {
// happens when we enter the table creation dialog
// or when we really did not get any status info, for example
// when $table === 'TABLE_NAMES' after the user tried SHOW TABLES
return '';
}
if ($info === null) {
return $cachedResult;
}
// array_key_exists allows for null values
if (! array_key_exists($info, $cachedResult)) {
if (! $disableError) {
trigger_error(
__('Unknown table status:') . ' ' . $info,
E_USER_WARNING
);
}
return false;
}
return $this->dbi->getCache()->getCachedTableContent([$db, $table, $info]);
}
/**
* Returns the Table storage Engine for current table.
*
* @return string Return storage engine info if it is set for
* the selected table else return blank.
*/
public function getStorageEngine(): string
{
$tableStorageEngine = $this->getStatusInfo('ENGINE', false, true);
if ($tableStorageEngine === false) {
return '';
}
return strtoupper((string) $tableStorageEngine);
}
/**
* Returns the comments for current table.
*
* @return string Return comment info if it is set for the selected table or return blank.
*/
public function getComment()
{
$tableComment = $this->getStatusInfo('TABLE_COMMENT', false, true);
if ($tableComment === false) {
return '';
}
return $tableComment;
}
/**
* Returns the collation for current table.
*
* @return string Return blank if collation is empty else return the collation info from table info.
*/
public function getCollation()
{
$tableCollation = $this->getStatusInfo('TABLE_COLLATION', false, true);
if ($tableCollation === false) {
return '';
}
return $tableCollation;
}
/**
* Returns the info about no of rows for current table.
*
* @return int Return no of rows info if it is not null for the selected table or return 0.
*/
public function getNumRows()
{
$tableNumRowInfo = $this->getStatusInfo('TABLE_ROWS', false, true);
if ($tableNumRowInfo === false) {
$tableNumRowInfo = $this->dbi->getTable($this->dbName, $GLOBALS['showtable']['Name'])
->countRecords(true);
}
return $tableNumRowInfo ?: 0;
}
/**
* Returns the Row format for current table.
*
* @return string Return table row format info if it is set for the selected table or return blank.
*/
public function getRowFormat()
{
$tableRowFormat = $this->getStatusInfo('ROW_FORMAT', false, true);
if ($tableRowFormat === false) {
return '';
}
return $tableRowFormat;
}
/**
* Returns the auto increment option for current table.
*
* @return int Return auto increment info if it is set for the selected table or return blank.
*/
public function getAutoIncrement()
{
$tableAutoIncrement = $this->getStatusInfo('AUTO_INCREMENT', false, true);
return $tableAutoIncrement ?? '';
}
/**
* Returns the array for CREATE statement for current table.
*
* @return array Return options array info if it is set for the selected table or return blank.
*/
public function getCreateOptions()
{
$tableOptions = $this->getStatusInfo('CREATE_OPTIONS', false, true);
$createOptionsTmp = empty($tableOptions) ? [] : explode(' ', $tableOptions);
$createOptions = [];
// export create options by its name as variables into global namespace
// f.e. pack_keys=1 becomes available as $pack_keys with value of '1'
// unset($pack_keys);
foreach ($createOptionsTmp as $eachCreateOption) {
$eachCreateOption = explode('=', $eachCreateOption);
if (! isset($eachCreateOption[1])) {
continue;
}
// ensure there is no ambiguity for PHP 5 and 7
$createOptions[$eachCreateOption[0]] = $eachCreateOption[1];
}
// we need explicit DEFAULT value here (different from '0')
$hasPackKeys = isset($createOptions['pack_keys']) && strlen($createOptions['pack_keys']) > 0;
$createOptions['pack_keys'] = $hasPackKeys ? $createOptions['pack_keys'] : 'DEFAULT';
return $createOptions;
}
/**
* generates column specification for ALTER or CREATE TABLE syntax
*
* @param string $name name
* @param string $type type ('INT', 'VARCHAR', 'BIT', ...)
* @param string $length length ('2', '5,2', '', ...)
* @param string $attribute attribute
* @param string $collation collation
* @param bool|string $null with 'NULL' or 'NOT NULL'
* @param string $defaultType whether default is CURRENT_TIMESTAMP,
* NULL, NONE, USER_DEFINED, UUID
* @param string $defaultValue default value for USER_DEFINED
* default type
* @param string $extra 'AUTO_INCREMENT'
* @param string $comment field comment
* @param string $virtuality virtuality of the column
* @param string $expression expression for the virtual column
* @param string $moveTo new position for column
* @param array $columnsWithIndex Fields having PRIMARY or UNIQUE KEY indexes
* @param string $oldColumnName Old column name
*
* @return string field specification
*
* @todo move into class PMA_Column
* @todo on the interface, some js to clear the default value when the
* default current_timestamp is checked
*/
public static function generateFieldSpec(
$name,
string $type,
string $length = '',
$attribute = '',
$collation = '',
$null = false,
$defaultType = 'USER_DEFINED',
$defaultValue = '',
$extra = '',
$comment = '',
$virtuality = '',
$expression = '',
$moveTo = '',
$columnsWithIndex = null,
$oldColumnName = null
) {
global $dbi;
$strLength = strlen($length);
$isTimestamp = mb_stripos($type, 'TIMESTAMP') !== false;
$query = Util::backquote($name) . ' ' . $type;
// allow the possibility of a length for TIME, DATETIME and TIMESTAMP
// (will work on MySQL >= 5.6.4)
//
// MySQL permits a non-standard syntax for FLOAT and DOUBLE,
// see https://dev.mysql.com/doc/refman/5.5/en/floating-point-types.html
$pattern = '@^(DATE|TINYBLOB|TINYTEXT|BLOB|TEXT|'
. 'MEDIUMBLOB|MEDIUMTEXT|LONGBLOB|LONGTEXT|SERIAL|BOOLEAN|UUID|JSON)$@i';
if (
$strLength !== 0
&& ! preg_match($pattern, $type)
&& Compatibility::isIntegersSupportLength($type, $length, $dbi)
) {
// Note: The variable $length here can contain several other things
// besides length - ENUM/SET value or length of DECIMAL (eg. 12,3)
// so we can't just convert it to integer
$query .= '(' . $length . ')';
}
if ($attribute != '') {
$query .= ' ' . $attribute;
if ($isTimestamp && stripos($attribute, 'TIMESTAMP') !== false && $strLength !== 0) {
$query .= '(' . $length . ')';
}
}
// if column is virtual, check if server type is Mysql as only Mysql server
// supports extra column properties
$isVirtualColMysql = $virtuality && Compatibility::isMySqlOrPerconaDb();
// if column is virtual, check if server type is MariaDB as MariaDB server
// supports no extra virtual column properties except CHARACTER SET for text column types
$isVirtualColMariaDB = $virtuality && Compatibility::isMariaDb();
$matches = preg_match('@^(TINYTEXT|TEXT|MEDIUMTEXT|LONGTEXT|VARCHAR|CHAR|ENUM|SET)$@i', $type);
if (! empty($collation) && $collation !== 'NULL' && $matches) {
$query .= Util::getCharsetQueryPart(
$isVirtualColMariaDB ? (string) preg_replace('~_.+~s', '', $collation) : $collation,
true
);
}
if ($virtuality) {
$query .= ' AS (' . $expression . ') ' . $virtuality;
}
if (! $virtuality || $isVirtualColMysql) {
if ($null !== false) {
if ($null === 'YES') {
$query .= ' NULL';
} else {
$query .= ' NOT NULL';
}
}
if (! $virtuality) {
switch ($defaultType) {
case 'USER_DEFINED':
if ($isTimestamp && $defaultValue === '0') {
// a TIMESTAMP does not accept DEFAULT '0'
// but DEFAULT 0 works
$query .= ' DEFAULT 0';
} elseif (
$isTimestamp
&& preg_match(
'/^\'\d\d\d\d-\d\d-\d\d \d\d:\d\d:\d\d(\.\d{1,6})?\'$/',
(string) $defaultValue
)
) {
$query .= ' DEFAULT ' . (string) $defaultValue;
} elseif ($type === 'BIT') {
$query .= ' DEFAULT b\''
. preg_replace('/[^01]/', '0', (string) $defaultValue)
. '\'';
} elseif ($type === 'BOOLEAN') {
if (preg_match('/^1|T|TRUE|YES$/i', (string) $defaultValue)) {
$query .= ' DEFAULT TRUE';
} elseif (preg_match('/^0|F|FALSE|NO$/i', $defaultValue)) {
$query .= ' DEFAULT FALSE';
} else {
// Invalid BOOLEAN value
$query .= ' DEFAULT \''
. $dbi->escapeString($defaultValue) . '\'';
}
} elseif ($type === 'BINARY' || $type === 'VARBINARY') {
$query .= ' DEFAULT 0x' . $defaultValue;
} else {
$query .= ' DEFAULT \''
. $dbi->escapeString((string) $defaultValue) . '\'';
}
break;
/** @noinspection PhpMissingBreakStatementInspection */
case 'NULL':
// If user uncheck null checkbox and not change default value null,
// default value will be ignored.
if ($null !== false && $null !== 'YES') {
break;
}
// else fall-through intended, no break here
case 'CURRENT_TIMESTAMP':
case 'current_timestamp()':
$query .= ' DEFAULT ' . $defaultType;
if (
$strLength !== 0
&& $isTimestamp
&& $defaultType !== 'NULL' // Not to be added in case of NULL
) {
$query .= '(' . $length . ')';
}
break;
case 'UUID':
case 'uuid()':
$query .= ' DEFAULT uuid()';
break;
case 'NONE':
default:
break;
}
}
if (! empty($extra)) {
if ($virtuality) {
$extra = trim((string) preg_replace('~^\s*AUTO_INCREMENT\s*~is', ' ', $extra));
}
$query .= ' ' . $extra;
}
}
if (! empty($comment)) {
$query .= " COMMENT '" . $dbi->escapeString($comment) . "'";
}
// move column
if ($moveTo === '-first') { // dash can't appear as part of column name
$query .= ' FIRST';
} elseif ($moveTo != '') {
$query .= ' AFTER ' . Util::backquote($moveTo);
}
if (! $virtuality && ! empty($extra)) {
if ($oldColumnName === null) {
if (is_array($columnsWithIndex) && ! in_array($name, $columnsWithIndex)) {
$query .= ', add PRIMARY KEY (' . Util::backquote($name) . ')';
}
} else {
if (is_array($columnsWithIndex) && ! in_array($oldColumnName, $columnsWithIndex)) {
$query .= ', add PRIMARY KEY (' . Util::backquote($name) . ')';
}
}
}
return $query;
}
/**
* Checks if the number of records in a table is at least equal to
* $min_records
*
* @param int $minRecords Number of records to check for in a table
*/
public function checkIfMinRecordsExist($minRecords = 0): bool
{
$checkQuery = 'SELECT ';
$uniqueFields = $this->getUniqueColumns(true, false);
if (count($uniqueFields) > 0) {
$fieldsToSelect = implode(', ', $uniqueFields);
} else {
$indexedCols = $this->getIndexedColumns(true, false);
if (count($indexedCols) > 0) {
$fieldsToSelect = implode(', ', $indexedCols);
} else {
$fieldsToSelect = '*';
}
}
$checkQuery .= $fieldsToSelect
. ' FROM ' . $this->getFullName(true)
. ' LIMIT ' . $minRecords;
$res = $this->dbi->tryQuery($checkQuery);
if ($res !== false) {
$numRecords = $res->numRows();
if ($numRecords >= $minRecords) {
return true;
}
}
return false;
}
/**
* Counts and returns (or displays) the number of records in a table
*
* @param bool $forceExact whether to force an exact count
*
* @return mixed the number of records if "retain" param is true,
* otherwise true
*/
public function countRecords($forceExact = false)
{
$isView = $this->isView();
$db = $this->dbName;
$table = $this->name;
if ($this->dbi->getCache()->getCachedTableContent([$db, $table, 'ExactRows']) != null) {
return $this->dbi->getCache()->getCachedTableContent(
[
$db,
$table,
'ExactRows',
]
);
}
$rowCount = false;
if (! $forceExact) {
if (($this->dbi->getCache()->getCachedTableContent([$db, $table, 'Rows']) == null) && ! $isView) {
$tmpTables = $this->dbi->getTablesFull($db, $table);
if (isset($tmpTables[$table])) {
$this->dbi->getCache()->cacheTableContent(
[
$db,
$table,
],
$tmpTables[$table]
);
}
}
if ($this->dbi->getCache()->getCachedTableContent([$db, $table, 'Rows']) != null) {
$rowCount = $this->dbi->getCache()->getCachedTableContent(
[
$db,
$table,
'Rows',
]
);
} else {
$rowCount = false;
}
}
// for a VIEW, $row_count is always false at this point
if ($rowCount !== false && $rowCount >= $GLOBALS['cfg']['MaxExactCount']) {
return $rowCount;
}
if (! $isView) {
$rowCount = $this->dbi->fetchValue(
'SELECT COUNT(*) FROM ' . Util::backquote($db) . '.'
. Util::backquote($table)
);
} else {
// For complex views, even trying to get a partial record
// count could bring down a server, so we offer an
// alternative: setting MaxExactCountViews to 0 will bypass
// completely the record counting for views
if ($GLOBALS['cfg']['MaxExactCountViews'] == 0) {
$rowCount = false;
} else {
// Counting all rows of a VIEW could be too long,
// so use a LIMIT clause.
// Use try_query because it can fail (when a VIEW is
// based on a table that no longer exists)
$result = $this->dbi->tryQuery(
'SELECT 1 FROM ' . Util::backquote($db) . '.'
. Util::backquote($table) . ' LIMIT '
. $GLOBALS['cfg']['MaxExactCountViews']
);
if ($result) {
$rowCount = $result->numRows();
}
}
}
if ($rowCount) {
$this->dbi->getCache()->cacheTableContent([$db, $table, 'ExactRows'], $rowCount);
}
return $rowCount;
}
/**
* Generates column specification for ALTER syntax
*
* @see Table::generateFieldSpec()
*
* @param string $oldcol old column name
* @param string $newcol new column name
* @param string $type type ('INT', 'VARCHAR', 'BIT', ...)
* @param string $length length ('2', '5,2', '', ...)
* @param string $attribute attribute
* @param string $collation collation
* @param bool|string $null with 'NULL' or 'NOT NULL'
* @param string $defaultType whether default is CURRENT_TIMESTAMP,
* NULL, NONE, USER_DEFINED
* @param string $defaultValue default value for USER_DEFINED default
* type
* @param string $extra 'AUTO_INCREMENT'
* @param string $comment field comment
* @param string $virtuality virtuality of the column
* @param string $expression expression for the virtual column
* @param string $moveTo new position for column
* @param array $columnsWithIndex Fields having PRIMARY or UNIQUE KEY indexes
*
* @return string field specification
*/
public static function generateAlter(
$oldcol,
$newcol,
$type,
$length,
$attribute,
$collation,
$null,
$defaultType,
$defaultValue,
$extra,
$comment,
$virtuality,
$expression,
$moveTo,
$columnsWithIndex = null
) {
return Util::backquote($oldcol) . ' '
. self::generateFieldSpec(
$newcol,
$type,
$length,
$attribute,
$collation,
$null,
$defaultType,
$defaultValue,
$extra,
$comment,
$virtuality,
$expression,
$moveTo,
$columnsWithIndex,
$oldcol
);
}
/**
* Inserts existing entries in a PMA_* table by reading a value from an old
* entry
*
* @param string $work The array index, which Relation feature to check ('relwork', 'commwork', ...)
* @param string $table The array index, which PMA-table to update ('bookmark', 'relation', ...)
* @param array $getFields Which fields will be SELECT'ed from the old entry
* @param array $whereFields Which fields will be used for the WHERE query (array('FIELDNAME' => 'FIELDVALUE'))
* @param array $newFields Which fields will be used as new VALUES. These are the important keys which differ
* from the old entry (array('FIELDNAME' => 'NEW FIELDVALUE'))
*
* @return int|bool
*/
public static function duplicateInfo(
$work,
$table,
array $getFields,
array $whereFields,
array $newFields
) {
global $dbi;
$relation = new Relation($dbi);
$relationParameters = $relation->getRelationParameters();
$relationParams = $relationParameters->toArray();
$lastId = -1;
if (! isset($relationParams[$work], $relationParams[$table]) || ! $relationParams[$work]) {
return true;
}
$selectParts = [];
$rowFields = [];
foreach ($getFields as $getField) {
$selectParts[] = Util::backquote($getField);
$rowFields[$getField] = 'cc';
}
$whereParts = [];
foreach ($whereFields as $where => $value) {
$whereParts[] = Util::backquote($where) . ' = \''
. $dbi->escapeString((string) $value) . '\'';
}
$newParts = [];
$newValueParts = [];
foreach ($newFields as $where => $value) {
$newParts[] = Util::backquote($where);
$newValueParts[] = $dbi->escapeString((string) $value);
}
$tableCopyQuery = '
SELECT ' . implode(', ', $selectParts) . '
FROM ' . Util::backquote($relationParameters->db) . '.'
. Util::backquote((string) $relationParams[$table]) . '
WHERE ' . implode(' AND ', $whereParts);
// must use DatabaseInterface::QUERY_BUFFERED here, since we execute
// another query inside the loop
$tableCopyRs = $dbi->queryAsControlUser($tableCopyQuery);
foreach ($tableCopyRs as $tableCopyRow) {
$valueParts = [];
foreach ($tableCopyRow as $key => $val) {
if (! isset($rowFields[$key]) || $rowFields[$key] != 'cc') {
continue;
}
$valueParts[] = $dbi->escapeString($val);
}
$newTableQuery = 'INSERT IGNORE INTO '
. Util::backquote($relationParameters->db)
. '.' . Util::backquote((string) $relationParams[$table])
. ' (' . implode(', ', $selectParts) . ', '
. implode(', ', $newParts) . ') VALUES (\''
. implode('\', \'', $valueParts) . '\', \''
. implode('\', \'', $newValueParts) . '\')';
$dbi->queryAsControlUser($newTableQuery);
$lastId = $dbi->insertId();
}
return $lastId;
}
/**
* Copies or renames table
*
* @param string $sourceDb source database
* @param string $sourceTable source table
* @param string|null $targetDb target database
* @param string $targetTable target table
* @param string $what what to be moved or copied (data, dataonly)
* @param bool $move whether to move
* @param string $mode mode
*/
public static function moveCopy(
$sourceDb,
$sourceTable,
?string $targetDb,
$targetTable,
$what,
$move,
$mode,
bool $addDropIfExists
): bool {
global $errorUrl, $dbi;
$relation = new Relation($dbi);
// Try moving the tables directly, using native `RENAME` statement.
if ($move && $what === 'data') {
$tbl = new Table($sourceTable, $sourceDb);
if ($tbl->rename($targetTable, $targetDb)) {
$GLOBALS['message'] = $tbl->getLastMessage();
return true;
}
}
// Setting required export settings.
$GLOBALS['sql_backquotes'] = 1;
$GLOBALS['asfile'] = 1;
// Ensuring the target database is valid.
if (! $GLOBALS['dblist']->databases->exists($sourceDb, $targetDb)) {
if (! $GLOBALS['dblist']->databases->exists($sourceDb)) {
$GLOBALS['message'] = Message::rawError(
sprintf(
__('Source database `%s` was not found!'),
htmlspecialchars($sourceDb)
)
);
}
if (! $GLOBALS['dblist']->databases->exists($targetDb)) {
$GLOBALS['message'] = Message::rawError(
sprintf(
__('Target database `%s` was not found!'),
htmlspecialchars((string) $targetDb)
)
);
}
return false;
}
/**
* The full name of source table, quoted.
*
* @var string $source
*/
$source = Util::backquote($sourceDb)
. '.' . Util::backquote($sourceTable);
// If the target database is not specified, the operation is taking
// place in the same database.
if (! isset($targetDb) || strlen($targetDb) === 0) {
$targetDb = $sourceDb;
}
// Selecting the database could avoid some problems with replicated
// databases, when moving table from replicated one to not replicated one.
$dbi->selectDb($targetDb);
/**
* The full name of target table, quoted.
*
* @var string $target
*/
$target = Util::backquote($targetDb)
. '.' . Util::backquote($targetTable);
// No table is created when this is a data-only operation.
if ($what !== 'dataonly') {
/**
* Instance used for exporting the current structure of the table.
*
* @var ExportSql $exportSqlPlugin
*/
$exportSqlPlugin = Plugins::getPlugin('export', 'sql', [
'export_type' => 'table',
'single_table' => false,
]);
$noConstraintsComments = true;
$GLOBALS['sql_constraints_query'] = '';
// set the value of global sql_auto_increment variable
if (isset($_POST['sql_auto_increment'])) {
$GLOBALS['sql_auto_increment'] = $_POST['sql_auto_increment'];
}
/**
* The old structure of the table..
*/
$sqlStructure = $exportSqlPlugin->getTableDef($sourceDb, $sourceTable, "\n", $errorUrl, false, false);
unset($noConstraintsComments);
// -----------------------------------------------------------------
// Phase 0: Preparing structures used.
/**
* The destination where the table is moved or copied to.
*/
$destination = new Expression($targetDb, $targetTable, '');
// Find server's SQL mode so the builder can generate correct
// queries.
// One of the options that alters the behaviour is `ANSI_QUOTES`.
Context::setMode((string) $dbi->fetchValue('SELECT @@sql_mode'));
// -----------------------------------------------------------------
// Phase 1: Dropping existent element of the same name (if exists
// and required).
if ($addDropIfExists) {
/**
* Drop statement used for building the query.
*/
$statement = new DropStatement();
$tbl = new Table($targetDb, $targetTable);
$statement->options = new OptionsArray(
[
$tbl->isView() ? 'VIEW' : 'TABLE',
'IF EXISTS',
]
);
$statement->fields = [$destination];
// Building the query.
$dropQuery = $statement->build() . ';';
// Executing it.
$dbi->query($dropQuery);
$GLOBALS['sql_query'] .= "\n" . $dropQuery;
// If an existing table gets deleted, maintain any entries for
// the PMA_* tables.
$maintainRelations = true;
}
// -----------------------------------------------------------------
// Phase 2: Generating the new query of this structure.
/**
* The parser responsible for parsing the old queries.
*/
$parser = new Parser($sqlStructure);
if (! empty($parser->statements[0])) {
/**
* The CREATE statement of this structure.
*
* @var CreateStatement $statement
*/
$statement = $parser->statements[0];
// Changing the destination.
$statement->name = $destination;
// Building back the query.
$sqlStructure = $statement->build() . ';';
// This is to avoid some issues when renaming databases with views
// See: https://github.com/phpmyadmin/phpmyadmin/issues/16422
if ($move) {
$dbi->selectDb($targetDb);
}
// Executing it
$dbi->query($sqlStructure);
$GLOBALS['sql_query'] .= "\n" . $sqlStructure;
}
// -----------------------------------------------------------------
// Phase 3: Adding constraints.
// All constraint names are removed because they must be unique.
if (($move || isset($GLOBALS['add_constraints'])) && ! empty($GLOBALS['sql_constraints_query'])) {
$parser = new Parser($GLOBALS['sql_constraints_query']);
/**
* The ALTER statement that generates the constraints.
*
* @var AlterStatement $statement
*/
$statement = $parser->statements[0];
// Changing the altered table to the destination.
$statement->table = $destination;
// Removing the name of the constraints.
foreach ($statement->altered as $altered) {
// All constraint names are removed because they must be unique.
if (! $altered->options->has('CONSTRAINT')) {
continue;
}
$altered->field = null;
}
// Building back the query.
$GLOBALS['sql_constraints_query'] = $statement->build() . ';';
// Executing it.
if ($mode === 'one_table') {
$dbi->query($GLOBALS['sql_constraints_query']);
}
$GLOBALS['sql_query'] .= "\n" . $GLOBALS['sql_constraints_query'];
if ($mode === 'one_table') {
unset($GLOBALS['sql_constraints_query']);
}
}
// -----------------------------------------------------------------
// Phase 4: Adding indexes.
// View phase 3.
if (! empty($GLOBALS['sql_indexes'])) {
$parser = new Parser($GLOBALS['sql_indexes']);
$GLOBALS['sql_indexes'] = '';
/**
* The ALTER statement that generates the indexes.
*
* @var AlterStatement $statement
*/
foreach ($parser->statements as $statement) {
// Changing the altered table to the destination.
$statement->table = $destination;
// Removing the name of the constraints.
foreach ($statement->altered as $altered) {
// All constraint names are removed because they must be unique.
if (! $altered->options->has('CONSTRAINT')) {
continue;
}
$altered->field = null;
}
// Building back the query.
$sqlIndex = $statement->build() . ';';
// Executing it.
if ($mode === 'one_table' || $mode === 'db_copy') {
$dbi->query($sqlIndex);
}
$GLOBALS['sql_indexes'] .= $sqlIndex;
}
$GLOBALS['sql_query'] .= "\n" . $GLOBALS['sql_indexes'];
if ($mode === 'one_table' || $mode === 'db_copy') {
unset($GLOBALS['sql_indexes']);
}
}
// -----------------------------------------------------------------
// Phase 5: Adding AUTO_INCREMENT.
if (! empty($GLOBALS['sql_auto_increments']) && ($mode === 'one_table' || $mode === 'db_copy')) {
$parser = new Parser($GLOBALS['sql_auto_increments']);
/**
* The ALTER statement that alters the AUTO_INCREMENT value.
*/
$statement = $parser->statements[0];
if ($statement instanceof AlterStatement) {
// Changing the altered table to the destination.
$statement->table = $destination;
// Building back the query.
$GLOBALS['sql_auto_increments'] = $statement->build() . ';';
// Executing it.
$dbi->query($GLOBALS['sql_auto_increments']);
$GLOBALS['sql_query'] .= "\n" . $GLOBALS['sql_auto_increments'];
}
unset($GLOBALS['sql_auto_increments']);
}
} else {
$GLOBALS['sql_query'] = '';
}
$table = new Table($targetTable, $targetDb);
// Copy the data unless this is a VIEW
if (($what === 'data' || $what === 'dataonly') && ! $table->isView()) {
$sqlSetMode = "SET SQL_MODE='NO_AUTO_VALUE_ON_ZERO'";
$dbi->query($sqlSetMode);
$GLOBALS['sql_query'] .= "\n\n" . $sqlSetMode . ';';
$oldTable = new Table($sourceTable, $sourceDb);
$nonGeneratedCols = $oldTable->getNonGeneratedColumns(true);
if (count($nonGeneratedCols) > 0) {
$sqlInsertData = 'INSERT INTO ' . $target . '('
. implode(', ', $nonGeneratedCols)
. ') SELECT ' . implode(', ', $nonGeneratedCols)
. ' FROM ' . $source;
$dbi->query($sqlInsertData);
$GLOBALS['sql_query'] .= "\n\n" . $sqlInsertData . ';';
}
}
$relationParameters = $relation->getRelationParameters();
// Drops old table if the user has requested to move it
if ($move) {
// This could avoid some problems with replicated databases, when
// moving table from replicated one to not replicated one
$dbi->selectDb($sourceDb);
$sourceTableObj = new Table($sourceTable, $sourceDb);
if ($sourceTableObj->isView()) {
$sqlDropQuery = 'DROP VIEW';
} else {
$sqlDropQuery = 'DROP TABLE';
}
$sqlDropQuery .= ' ' . $source;
$dbi->query($sqlDropQuery);
// Rename table in configuration storage
$relation->renameTable($sourceDb, $targetDb, $sourceTable, $targetTable);
$GLOBALS['sql_query'] .= "\n\n" . $sqlDropQuery . ';';
return true;
}
// we are copying
// Create new entries as duplicates from old PMA DBs
if ($what === 'dataonly' || isset($maintainRelations)) {
return true;
}
if ($relationParameters->columnCommentsFeature !== null) {
// Get all comments and MIME-Types for current table
$commentsCopyRs = $dbi->queryAsControlUser(
'SELECT column_name, comment'
. ($relationParameters->browserTransformationFeature !== null
? ', mimetype, transformation, transformation_options'
: '')
. ' FROM '
. Util::backquote($relationParameters->columnCommentsFeature->database)
. '.'
. Util::backquote($relationParameters->columnCommentsFeature->columnInfo)
. ' WHERE '
. ' db_name = \''
. $dbi->escapeString($sourceDb) . '\''
. ' AND '
. ' table_name = \''
. $dbi->escapeString((string) $sourceTable) . '\''
);
// Write every comment as new copied entry. [MIME]
foreach ($commentsCopyRs as $commentsCopyRow) {
$newCommentQuery = 'REPLACE INTO '
. Util::backquote($relationParameters->columnCommentsFeature->database)
. '.' . Util::backquote($relationParameters->columnCommentsFeature->columnInfo)
. ' (db_name, table_name, column_name, comment'
. ($relationParameters->browserTransformationFeature !== null
? ', mimetype, transformation, transformation_options'
: '')
. ') VALUES(\'' . $dbi->escapeString($targetDb)
. '\',\'' . $dbi->escapeString($targetTable) . '\',\''
. $dbi->escapeString($commentsCopyRow['column_name'])
. '\',\''
. $dbi->escapeString($commentsCopyRow['comment'])
. '\''
. ($relationParameters->browserTransformationFeature !== null
? ',\'' . $dbi->escapeString($commentsCopyRow['mimetype'])
. '\',\'' . $dbi->escapeString($commentsCopyRow['transformation'])
. '\',\'' . $dbi->escapeString($commentsCopyRow['transformation_options'])
. '\''
: '')
. ')';
$dbi->queryAsControlUser($newCommentQuery);
}
unset($commentsCopyRs);
}
// duplicating the bookmarks must not be done here, but
// just once per db
$getFields = ['display_field'];
$whereFields = [
'db_name' => $sourceDb,
'table_name' => $sourceTable,
];
$newFields = [
'db_name' => $targetDb,
'table_name' => $targetTable,
];
self::duplicateInfo('displaywork', 'table_info', $getFields, $whereFields, $newFields);
/**
* @todo revise this code when we support cross-db relations
*/
$getFields = [
'master_field',
'foreign_table',
'foreign_field',
];
$whereFields = [
'master_db' => $sourceDb,
'master_table' => $sourceTable,
];
$newFields = [
'master_db' => $targetDb,
'foreign_db' => $targetDb,
'master_table' => $targetTable,
];
self::duplicateInfo('relwork', 'relation', $getFields, $whereFields, $newFields);
$getFields = [
'foreign_field',
'master_table',
'master_field',
];
$whereFields = [
'foreign_db' => $sourceDb,
'foreign_table' => $sourceTable,
];
$newFields = [
'master_db' => $targetDb,
'foreign_db' => $targetDb,
'foreign_table' => $targetTable,
];
self::duplicateInfo('relwork', 'relation', $getFields, $whereFields, $newFields);
return true;
}
/**
* checks if given name is a valid table name,
* currently if not empty, trailing spaces, '.', '/' and '\'
*
* @see https://dev.mysql.com/doc/refman/5.0/en/legal-names.html
*
* @param string $tableName name to check
* @param bool $isBackquoted whether this name is used inside backquotes or not
*
* @todo add check for valid chars in filename on current system/os
*/
public static function isValidName($tableName, $isBackquoted = false): bool
{
if ($tableName !== rtrim((string) $tableName)) {
// trailing spaces not allowed even in backquotes
return false;
}
if (strlen($tableName) === 0) {
// zero length
return false;
}
if (! $isBackquoted && $tableName !== trim($tableName)) {
// spaces at the start or in between only allowed inside backquotes
return false;
}
if (! $isBackquoted && preg_match('/^[a-zA-Z0-9_$]+$/', $tableName)) {
// only allow the above regex in unquoted identifiers
// see : https://dev.mysql.com/doc/refman/5.7/en/identifiers.html
return true;
}
// If backquoted, all characters should be allowed (except w/ trailing spaces).
return $isBackquoted;
}
/**
* renames table
*
* @param string $newName new table name
* @param string $newDb new database name
*/
public function rename($newName, $newDb = null): bool
{
if ($this->dbi->getLowerCaseNames() === '1') {
$newName = strtolower($newName);
}
if ($newDb !== null && $newDb !== $this->getDbName()) {
// Ensure the target is valid
if (! $GLOBALS['dblist']->databases->exists($newDb)) {
$this->errors[] = __('Invalid database:') . ' ' . $newDb;
return false;
}
} else {
$newDb = $this->getDbName();
}
$newTable = new Table($newName, $newDb);
if ($this->getFullName() === $newTable->getFullName()) {
return true;
}
// Allow whitespaces (not trailing) in $new_name,
// since we are using $backquoted in getting the fullName of table
// below to be used in the query
if (! self::isValidName($newName, true)) {
$this->errors[] = __('Invalid table name:') . ' '
. $newTable->getFullName();
return false;
}
// If the table is moved to a different database drop its triggers first
$triggers = $this->dbi->getTriggers(
$this->getDbName(),
$this->getName(),
''
);
$handleTriggers = $this->getDbName() != $newDb && $triggers;
if ($handleTriggers) {
foreach ($triggers as $trigger) {
$sql = 'DROP TRIGGER IF EXISTS '
. Util::backquote($this->getDbName())
. '.' . Util::backquote($trigger['name']) . ';';
$this->dbi->query($sql);
}
}
/*
* tested also for a view, in MySQL 5.0.92, 5.1.55 and 5.5.13
*/
$GLOBALS['sql_query'] = '
RENAME TABLE ' . $this->getFullName(true) . '
TO ' . $newTable->getFullName(true) . ';';
// I don't think a specific error message for views is necessary
if (! $this->dbi->query($GLOBALS['sql_query'])) {
// TODO: this is dead code, should it be removed?
// Restore triggers in the old database
if ($handleTriggers) {
$this->dbi->selectDb($this->getDbName());
foreach ($triggers as $trigger) {
$this->dbi->query($trigger['create']);
}
}
$this->errors[] = sprintf(
__('Failed to rename table %1$s to %2$s!'),
$this->getFullName(),
$newTable->getFullName()
);
return false;
}
$oldName = $this->getName();
$oldDb = $this->getDbName();
$this->name = $newName;
$this->dbName = $newDb;
// Rename table in configuration storage
$this->relation->renameTable($oldDb, $newDb, $oldName, $newName);
$this->messages[] = sprintf(
__('Table %1$s has been renamed to %2$s.'),
htmlspecialchars($oldName),
htmlspecialchars($newName)
);
return true;
}
/**
* Get all unique columns
*
* returns an array with all columns with unique content, in fact these are
* all columns being single indexed in PRIMARY or UNIQUE
*
* e.g.
* - PRIMARY(id) // id
* - UNIQUE(name) // name
* - PRIMARY(fk_id1, fk_id2) // NONE
* - UNIQUE(x,y) // NONE
*
* @param bool $backquoted whether to quote name with backticks ``
* @param bool $fullName whether to include full name of the table as a prefix
*
* @return array
*/
public function getUniqueColumns($backquoted = true, $fullName = true)
{
$sql = QueryGenerator::getTableIndexesSql(
$this->getDbName(),
$this->getName(),
'Non_unique = 0'
);
$uniques = $this->dbi->fetchResult(
$sql,
[
'Key_name',
null,
],
'Column_name'
);
$return = [];
foreach ($uniques as $index) {
if (count($index) > 1) {
continue;
}
if ($fullName) {
$possibleColumn = $this->getFullName($backquoted) . '.';
} else {
$possibleColumn = '';
}
if ($backquoted) {
$possibleColumn .= Util::backquote($index[0]);
} else {
$possibleColumn .= $index[0];
}
// a column might have a primary and an unique index on it
if (in_array($possibleColumn, $return)) {
continue;
}
$return[] = $possibleColumn;
}
return $return;
}
/**
* Formats lists of columns
*
* returns an array with all columns that make use of an index
*
* e.g. index(col1, col2) would return col1, col2
*
* @param array $indexed column data
* @param bool $backquoted whether to quote name with backticks ``
* @param bool $fullName whether to include full name of the table as a prefix
*
* @return array
*/
private function formatColumns(array $indexed, $backquoted, $fullName)
{
$return = [];
foreach ($indexed as $column) {
$return[] = ($fullName ? $this->getFullName($backquoted) . '.' : '')
. ($backquoted ? Util::backquote($column) : $column);
}
return $return;
}
/**
* Get all indexed columns
*
* returns an array with all columns that make use of an index
*
* e.g. index(col1, col2) would return col1, col2
*
* @param bool $backquoted whether to quote name with backticks ``
* @param bool $fullName whether to include full name of the table as a prefix
*
* @return array
*/
public function getIndexedColumns($backquoted = true, $fullName = true)
{
$sql = QueryGenerator::getTableIndexesSql(
$this->getDbName(),
$this->getName(),
''
);
$indexed = $this->dbi->fetchResult($sql, 'Column_name', 'Column_name');
return $this->formatColumns($indexed, $backquoted, $fullName);
}
/**
* Get all columns
*
* returns an array with all columns
*
* @param bool $backquoted whether to quote name with backticks ``
* @param bool $fullName whether to include full name of the table as a prefix
*
* @return array
*/
public function getColumns($backquoted = true, $fullName = true)
{
$sql = 'SHOW COLUMNS FROM ' . $this->getFullName(true);
$indexed = $this->dbi->fetchResult($sql, 'Field', 'Field');
return $this->formatColumns($indexed, $backquoted, $fullName);
}
/**
* Get meta info for fields in table
*
* @return FieldMetadata[]
*/
public function getColumnsMeta(): array
{
$moveColumnsSqlQuery = sprintf(
'SELECT * FROM %s.%s LIMIT 1',
Util::backquote($this->dbName),
Util::backquote($this->name)
);
$moveColumnsSqlResult = $this->dbi->tryQuery($moveColumnsSqlQuery);
if ($moveColumnsSqlResult !== false) {
return $this->dbi->getFieldsMeta($moveColumnsSqlResult);
}
// unsure how to reproduce but it was seen on the reporting server
return [];
}
/**
* Get non-generated columns in table
*
* @param bool $backquoted whether to quote name with backticks ``
*
* @return array
*/
public function getNonGeneratedColumns($backquoted = true)
{
$columnsMetaQuery = 'SHOW COLUMNS FROM ' . $this->getFullName(true);
$ret = [];
$columnsMetaQueryResult = $this->dbi->fetchResult($columnsMetaQuery);
foreach ($columnsMetaQueryResult as $column) {
$value = $column['Field'];
if ($backquoted === true) {
$value = Util::backquote($value);
}
// If contains GENERATED or VIRTUAL and does not contain DEFAULT_GENERATED
if (
(
str_contains($column['Extra'], 'GENERATED')
|| str_contains($column['Extra'], 'VIRTUAL')
) && ! str_contains($column['Extra'], 'DEFAULT_GENERATED')
) {
continue;
}
$ret[] = $value;
}
return $ret;
}
/**
* Return UI preferences for this table from phpMyAdmin database.
*
* @return array
*/
protected function getUiPrefsFromDb(?UiPreferencesFeature $uiPreferencesFeature)
{
if ($uiPreferencesFeature === null) {
return [];
}
// Read from phpMyAdmin database
$sqlQuery = sprintf(
'SELECT `prefs` FROM %s.%s WHERE `username` = \'%s\' AND `db_name` = \'%s\' AND `table_name` = \'%s\'',
Util::backquote($uiPreferencesFeature->database),
Util::backquote($uiPreferencesFeature->tableUiPrefs),
$this->dbi->escapeString($GLOBALS['cfg']['Server']['user']),
$this->dbi->escapeString($this->dbName),
$this->dbi->escapeString($this->name)
);
$value = $this->dbi->queryAsControlUser($sqlQuery)->fetchValue();
if (is_string($value)) {
return json_decode($value, true);
}
return [];
}
/**
* Save this table's UI preferences into phpMyAdmin database.
*
* @return true|Message
*/
protected function saveUiPrefsToDb(UiPreferencesFeature $uiPreferencesFeature)
{
$table = Util::backquote($uiPreferencesFeature->database) . '.'
. Util::backquote($uiPreferencesFeature->tableUiPrefs);
$secureDbName = $this->dbi->escapeString($this->dbName);
$username = $GLOBALS['cfg']['Server']['user'];
$sqlQuery = ' REPLACE INTO ' . $table
. " (username, db_name, table_name, prefs) VALUES ('"
. $this->dbi->escapeString($username) . "', '" . $secureDbName
. "', '" . $this->dbi->escapeString($this->name) . "', '"
. $this->dbi->escapeString((string) json_encode($this->uiprefs)) . "')";
$success = $this->dbi->tryQuery($sqlQuery, DatabaseInterface::CONNECT_CONTROL);
if (! $success) {
$message = Message::error(
__('Could not save table UI preferences!')
);
$message->addMessage(
Message::rawError($this->dbi->getError(DatabaseInterface::CONNECT_CONTROL)),
'<br><br>'
);
return $message;
}
// Remove some old rows in table_uiprefs if it exceeds the configured
// maximum rows
$sqlQuery = 'SELECT COUNT(*) FROM ' . $table;
$rowsCount = (int) $this->dbi->fetchValue($sqlQuery);
$maxRows = (int) $GLOBALS['cfg']['Server']['MaxTableUiprefs'];
if ($rowsCount > $maxRows) {
$numRowsToDelete = $rowsCount - $maxRows;
$sqlQuery = ' DELETE FROM ' . $table .
' ORDER BY last_update ASC' .
' LIMIT ' . $numRowsToDelete;
$success = $this->dbi->tryQuery($sqlQuery, DatabaseInterface::CONNECT_CONTROL);
if (! $success) {
$message = Message::error(
sprintf(
__(
'Failed to cleanup table UI preferences (see $cfg[\'Servers\'][$i][\'MaxTableUiprefs\'] %s)'
),
MySQLDocumentation::showDocumentation('config', 'cfg_Servers_MaxTableUiprefs')
)
);
$message->addMessage(
Message::rawError($this->dbi->getError(DatabaseInterface::CONNECT_CONTROL)),
'<br><br>'
);
return $message;
}
}
return true;
}
/**
* Loads the UI preferences for this table.
* If pmadb and table_uiprefs is set, it will load the UI preferences from
* phpMyAdmin database.
*/
protected function loadUiPrefs(): void
{
$uiPreferencesFeature = $this->relation->getRelationParameters()->uiPreferencesFeature;
$serverId = $GLOBALS['server'];
// set session variable if it's still undefined
if (! isset($_SESSION['tmpval']['table_uiprefs'][$serverId][$this->dbName][$this->name])) {
// check whether we can get from pmadb
$uiPrefs = $this->getUiPrefsFromDb($uiPreferencesFeature);
$_SESSION['tmpval']['table_uiprefs'][$serverId][$this->dbName][$this->name] = $uiPrefs;
}
$this->uiprefs =& $_SESSION['tmpval']['table_uiprefs'][$serverId][$this->dbName][$this->name];
}
/**
* Get a property from UI preferences.
* Return false if the property is not found.
* Available property:
* - PROP_SORTED_COLUMN
* - PROP_COLUMN_ORDER
* - PROP_COLUMN_VISIB
*
* @param string $property property
*
* @return mixed
*/
public function getUiProp($property)
{
if (empty($this->uiprefs)) {
$this->loadUiPrefs();
}
// do checking based on property
if ($property == self::PROP_SORTED_COLUMN) {
if (! isset($this->uiprefs[$property])) {
return false;
}
if (! isset($_POST['discard_remembered_sort'])) {
// check if the column name exists in this table
$tmp = explode(' ', $this->uiprefs[$property]);
$colname = $tmp[0];
//remove backquoting from colname
$colname = str_replace('`', '', $colname);
//get the available column name without backquoting
$availColumns = $this->getColumns(false);
foreach ($availColumns as $eachCol) {
// check if $each_col ends with $colname
if (substr_compare($eachCol, $colname, mb_strlen($eachCol) - mb_strlen($colname)) === 0) {
return $this->uiprefs[$property];
}
}
}
// remove the property, since it no longer exists in database
$this->removeUiProp($property);
return false;
}
if ($property == self::PROP_COLUMN_ORDER || $property == self::PROP_COLUMN_VISIB) {
if ($this->isView() || ! isset($this->uiprefs[$property])) {
return false;
}
// check if the table has not been modified
if ($this->getStatusInfo('Create_time') == $this->uiprefs['CREATE_TIME']) {
return array_map('intval', $this->uiprefs[$property]);
}
// remove the property, since the table has been modified
$this->removeUiProp($property);
return false;
}
// default behaviour for other property:
return $this->uiprefs[$property] ?? false;
}
/**
* Set a property from UI preferences.
* If pmadb and table_uiprefs is set, it will save the UI preferences to
* phpMyAdmin database.
* Available property:
* - PROP_SORTED_COLUMN
* - PROP_COLUMN_ORDER
* - PROP_COLUMN_VISIB
*
* @param string $property Property
* @param mixed $value Value for the property
* @param string $tableCreateTime Needed for PROP_COLUMN_ORDER and PROP_COLUMN_VISIB
*
* @return bool|Message
*/
public function setUiProp($property, $value, $tableCreateTime = null)
{
if (empty($this->uiprefs)) {
$this->loadUiPrefs();
}
// we want to save the create time if the property is PROP_COLUMN_ORDER
if (! $this->isView() && ($property == self::PROP_COLUMN_ORDER || $property == self::PROP_COLUMN_VISIB)) {
$currCreateTime = $this->getStatusInfo('CREATE_TIME');
if (! isset($tableCreateTime) || $tableCreateTime != $currCreateTime) {
// there is no $table_create_time, or
// supplied $table_create_time is older than current create time,
// so don't save
return Message::error(
sprintf(
__(
'Cannot save UI property "%s". The changes made will ' .
'not be persistent after you refresh this page. ' .
'Please check if the table structure has been changed.'
),
$property
)
);
}
$this->uiprefs['CREATE_TIME'] = $currCreateTime;
}
// save the value
$this->uiprefs[$property] = $value;
// check if pmadb is set
$uiPreferencesFeature = $this->relation->getRelationParameters()->uiPreferencesFeature;
if ($uiPreferencesFeature !== null) {
return $this->saveUiPrefsToDb($uiPreferencesFeature);
}
return true;
}
/**
* Remove a property from UI preferences.
*
* @param string $property the property
*
* @return true|Message
*/
public function removeUiProp($property)
{
if (empty($this->uiprefs)) {
$this->loadUiPrefs();
}
if (isset($this->uiprefs[$property])) {
unset($this->uiprefs[$property]);
// check if pmadb is set
$uiPreferencesFeature = $this->relation->getRelationParameters()->uiPreferencesFeature;
if ($uiPreferencesFeature !== null) {
return $this->saveUiPrefsToDb($uiPreferencesFeature);
}
}
return true;
}
/**
* Get all column names which are MySQL reserved words
*
* @return array
*/
public function getReservedColumnNames()
{
$columns = $this->getColumns(false);
$return = [];
foreach ($columns as $column) {
$temp = explode('.', $column);
$columnName = $temp[2];
if (! Context::isKeyword($columnName, true)) {
continue;
}
$return[] = $columnName;
}
return $return;
}
/**
* Function to get the name and type of the columns of a table
*
* @return array
*/
public function getNameAndTypeOfTheColumns()
{
$columns = [];
foreach (
$this->dbi->getColumnsFull($this->dbName, $this->name) as $row
) {
if (preg_match('@^(set|enum)\((.+)\)$@i', $row['Type'], $tmp)) {
$tmp[2] = mb_substr(
(string) preg_replace('@([^,])\'\'@', '\\1\\\'', ',' . $tmp[2]),
1
);
$columns[$row['Field']] = $tmp[1] . '('
. str_replace(',', ', ', $tmp[2]) . ')';
} else {
$columns[$row['Field']] = $row['Type'];
}
}
return $columns;
}
/**
* Get index with index name
*
* @param string $index Index name
*
* @return Index
*/
public function getIndex($index)
{
return Index::singleton($this->dbName, $this->name, $index);
}
/**
* Function to get the sql query for index creation or edit
*
* @param Index $index current index
* @param bool $error whether error occurred or not
*
* @return string
*/
public function getSqlQueryForIndexCreateOrEdit($index, &$error)
{
// $sql_query is the one displayed in the query box
$sqlQuery = sprintf(
'ALTER TABLE %s.%s',
Util::backquote($this->dbName),
Util::backquote($this->name)
);
// Drops the old index
if (! empty($_POST['old_index'])) {
$oldIndex = is_array($_POST['old_index']) ? $_POST['old_index']['Key_name'] : $_POST['old_index'];
if ($oldIndex === 'PRIMARY') {
$sqlQuery .= ' DROP PRIMARY KEY,';
} else {
$sqlQuery .= sprintf(
' DROP INDEX %s,',
Util::backquote($oldIndex)
);
}
}
// Builds the new one
switch ($index->getChoice()) {
case 'PRIMARY':
if ($index->getName() == '') {
$index->setName('PRIMARY');
} elseif ($index->getName() !== 'PRIMARY') {
$error = Message::error(
__('The name of the primary key must be "PRIMARY"!')
);
}
$sqlQuery .= ' ADD PRIMARY KEY';
break;
case 'FULLTEXT':
case 'UNIQUE':
case 'INDEX':
case 'SPATIAL':
if ($index->getName() === 'PRIMARY') {
$error = Message::error(
__('Can\'t rename index to PRIMARY!')
);
}
$sqlQuery .= sprintf(
' ADD %s ',
$index->getChoice()
);
if ($index->getName()) {
$sqlQuery .= Util::backquote($index->getName());
}
break;
}
$indexFields = [];
foreach ($index->getColumns() as $key => $column) {
$indexFields[$key] = Util::backquote($column->getName());
if (! $column->getSubPart()) {
continue;
}
$indexFields[$key] .= '(' . $column->getSubPart() . ')';
}
if (empty($indexFields)) {
$error = Message::error(__('No index parts defined!'));
} else {
$sqlQuery .= ' (' . implode(', ', $indexFields) . ')';
}
$keyBlockSizes = $index->getKeyBlockSize();
if (! empty($keyBlockSizes)) {
$sqlQuery .= sprintf(
' KEY_BLOCK_SIZE = %s',
$this->dbi->escapeString((string) $keyBlockSizes)
);
}
// specifying index type is allowed only for primary, unique and index only
// TokuDB is using Fractal Tree, Using Type is not useless
// Ref: https://mariadb.com/kb/en/mariadb/storage-engine-index-types/
$type = $index->getType();
if (
$index->getChoice() !== 'SPATIAL'
&& $index->getChoice() !== 'FULLTEXT'
&& in_array($type, Index::getIndexTypes())
&& ! $this->isEngine(['TOKUDB'])
) {
$sqlQuery .= ' USING ' . $type;
}
$parser = $index->getParser();
if ($index->getChoice() === 'FULLTEXT' && ! empty($parser)) {
$sqlQuery .= ' WITH PARSER ' . $this->dbi->escapeString($parser);
}
$comment = $index->getComment();
if (! empty($comment)) {
$sqlQuery .= sprintf(
" COMMENT '%s'",
$this->dbi->escapeString($comment)
);
}
$sqlQuery .= ';';
return $sqlQuery;
}
/**
* Function to handle update for display field
*
* @param string $displayField display field
*/
public function updateDisplayField($displayField, DisplayFeature $displayFeature): void
{
if ($displayField == '') {
$updQuery = 'DELETE FROM '
. Util::backquote($displayFeature->database)
. '.' . Util::backquote($displayFeature->tableInfo)
. ' WHERE db_name = \''
. $this->dbi->escapeString($this->dbName) . '\''
. ' AND table_name = \''
. $this->dbi->escapeString($this->name) . '\'';
} else {
$updQuery = 'REPLACE INTO '
. Util::backquote($displayFeature->database)
. '.' . Util::backquote($displayFeature->tableInfo)
. '(db_name, table_name, display_field) VALUES('
. '\'' . $this->dbi->escapeString($this->dbName) . '\','
. '\'' . $this->dbi->escapeString($this->name) . '\','
. '\'' . $this->dbi->escapeString($displayField) . '\')';
}
$this->dbi->queryAsControlUser($updQuery);
}
/**
* Function to get update query for updating internal relations
*
* @param array $multiEditColumnsName multi edit column names
* @param array $destinationDb destination tables
* @param array $destinationTable destination tables
* @param array $destinationColumn destination columns
* @param array|null $existrel db, table, column
*/
public function updateInternalRelations(
array $multiEditColumnsName,
array $destinationDb,
array $destinationTable,
array $destinationColumn,
RelationFeature $relationFeature,
$existrel
): bool {
$updated = false;
foreach ($destinationDb as $masterFieldMd5 => $foreignDb) {
$updQuery = null;
// Map the fieldname's md5 back to its real name
$masterField = $multiEditColumnsName[$masterFieldMd5];
$foreignTable = $destinationTable[$masterFieldMd5];
$foreignField = $destinationColumn[$masterFieldMd5];
if (! empty($foreignDb) && ! empty($foreignTable) && ! empty($foreignField)) {
if (! isset($existrel[$masterField])) {
$updQuery = 'INSERT INTO '
. Util::backquote($relationFeature->database)
. '.' . Util::backquote($relationFeature->relation)
. '(master_db, master_table, master_field, foreign_db,'
. ' foreign_table, foreign_field)'
. ' values('
. '\'' . $this->dbi->escapeString($this->dbName) . '\', '
. '\'' . $this->dbi->escapeString($this->name) . '\', '
. '\'' . $this->dbi->escapeString($masterField) . '\', '
. '\'' . $this->dbi->escapeString($foreignDb) . '\', '
. '\'' . $this->dbi->escapeString($foreignTable) . '\','
. '\'' . $this->dbi->escapeString($foreignField) . '\')';
} elseif (
$existrel[$masterField]['foreign_db'] != $foreignDb
|| $existrel[$masterField]['foreign_table'] != $foreignTable
|| $existrel[$masterField]['foreign_field'] != $foreignField
) {
$updQuery = 'UPDATE '
. Util::backquote($relationFeature->database)
. '.' . Util::backquote($relationFeature->relation)
. ' SET foreign_db = \''
. $this->dbi->escapeString($foreignDb) . '\', '
. ' foreign_table = \''
. $this->dbi->escapeString($foreignTable) . '\', '
. ' foreign_field = \''
. $this->dbi->escapeString($foreignField) . '\' '
. ' WHERE master_db = \''
. $this->dbi->escapeString($this->dbName) . '\''
. ' AND master_table = \''
. $this->dbi->escapeString($this->name) . '\''
. ' AND master_field = \''
. $this->dbi->escapeString($masterField) . '\'';
}
} elseif (isset($existrel[$masterField])) {
$updQuery = 'DELETE FROM '
. Util::backquote($relationFeature->database)
. '.' . Util::backquote($relationFeature->relation)
. ' WHERE master_db = \''
. $this->dbi->escapeString($this->dbName) . '\''
. ' AND master_table = \''
. $this->dbi->escapeString($this->name) . '\''
. ' AND master_field = \''
. $this->dbi->escapeString($masterField) . '\'';
}
if (! isset($updQuery)) {
continue;
}
$this->dbi->queryAsControlUser($updQuery);
$updated = true;
}
return $updated;
}
/**
* Function to handle foreign key updates
*
* @param array $destinationForeignDb destination foreign database
* @param array $multiEditColumnsName multi edit column names
* @param array $destinationForeignTable destination foreign table
* @param array $destinationForeignColumn destination foreign column
* @param array $optionsArray options array
* @param string $table current table
* @param array $existrelForeign db, table, column
*
* @return array
*/
public function updateForeignKeys(
array $destinationForeignDb,
array $multiEditColumnsName,
array $destinationForeignTable,
array $destinationForeignColumn,
array $optionsArray,
$table,
array $existrelForeign
) {
$htmlOutput = '';
$previewSqlData = '';
$displayQuery = '';
$seenError = false;
foreach ($destinationForeignDb as $masterFieldMd5 => $foreignDb) {
$create = false;
$drop = false;
// Map the fieldname's md5 back to its real name
$masterField = $multiEditColumnsName[$masterFieldMd5];
$foreignTable = $destinationForeignTable[$masterFieldMd5];
$foreignField = $destinationForeignColumn[$masterFieldMd5];
if (isset($existrelForeign[$masterFieldMd5]['ref_db_name'])) {
$refDbName = $existrelForeign[$masterFieldMd5]['ref_db_name'];
} else {
$refDbName = $GLOBALS['db'];
}
$emptyFields = false;
foreach ($masterField as $key => $oneField) {
if (
(! empty($oneField) && empty($foreignField[$key]))
|| (empty($oneField) && ! empty($foreignField[$key]))
) {
$emptyFields = true;
}
if (! empty($oneField) || ! empty($foreignField[$key])) {
continue;
}
unset($masterField[$key], $foreignField[$key]);
}
if (! empty($foreignDb) && ! empty($foreignTable) && ! $emptyFields) {
if (isset($existrelForeign[$masterFieldMd5])) {
$constraintName = $existrelForeign[$masterFieldMd5]['constraint'];
$onDelete = ! empty(
$existrelForeign[$masterFieldMd5]['on_delete']
)
? $existrelForeign[$masterFieldMd5]['on_delete']
: 'RESTRICT';
$onUpdate = ! empty(
$existrelForeign[$masterFieldMd5]['on_update']
)
? $existrelForeign[$masterFieldMd5]['on_update']
: 'RESTRICT';
if (
$refDbName != $foreignDb
|| $existrelForeign[$masterFieldMd5]['ref_table_name'] != $foreignTable
|| $existrelForeign[$masterFieldMd5]['ref_index_list'] != $foreignField
|| $existrelForeign[$masterFieldMd5]['index_list'] != $masterField
|| $_POST['constraint_name'][$masterFieldMd5] != $constraintName
|| ($_POST['on_delete'][$masterFieldMd5] != $onDelete)
|| ($_POST['on_update'][$masterFieldMd5] != $onUpdate)
) {
// another foreign key is already defined for this field
// or an option has been changed for ON DELETE or ON UPDATE
$drop = true;
$create = true;
}
} else {
// no key defined for this field(s)
$create = true;
}
} elseif (isset($existrelForeign[$masterFieldMd5])) {
$drop = true;
}
if ($drop) {
$dropQuery = 'ALTER TABLE ' . Util::backquote($table)
. ' DROP FOREIGN KEY '
. Util::backquote($existrelForeign[$masterFieldMd5]['constraint'])
. ';';
if (! isset($_POST['preview_sql'])) {
$displayQuery .= $dropQuery . "\n";
$this->dbi->tryQuery($dropQuery);
$tmpErrorDrop = $this->dbi->getError();
if ($tmpErrorDrop !== '') {
$seenError = true;
$htmlOutput .= Generator::mysqlDie($tmpErrorDrop, $dropQuery, false, '', false);
continue;
}
} else {
$previewSqlData .= $dropQuery . "\n";
}
}
$tmpErrorCreate = false;
if (! $create) {
continue;
}
$createQuery = $this->getSQLToCreateForeignKey(
$table,
$masterField,
$foreignDb,
$foreignTable,
$foreignField,
$_POST['constraint_name'][$masterFieldMd5],
$optionsArray[$_POST['on_delete'][$masterFieldMd5]],
$optionsArray[$_POST['on_update'][$masterFieldMd5]]
);
if (! isset($_POST['preview_sql'])) {
$displayQuery .= $createQuery . "\n";
$this->dbi->tryQuery($createQuery);
$tmpErrorCreate = $this->dbi->getError();
if (! empty($tmpErrorCreate)) {
$seenError = true;
if (substr($tmpErrorCreate, 1, 4) == '1005') {
$message = Message::error(
__(
'Error creating foreign key on %1$s (check data types)'
)
);
$message->addParam(implode(', ', $masterField));
$htmlOutput .= $message->getDisplay();
} else {
$htmlOutput .= Generator::mysqlDie($tmpErrorCreate, $createQuery, false, '', false);
}
$htmlOutput .= MySQLDocumentation::show('create-table-foreign-keys') . "\n";
}
} else {
$previewSqlData .= $createQuery . "\n";
}
// this is an alteration and the old constraint has been dropped
// without creation of a new one
if (! $drop || empty($tmpErrorCreate)) {
continue;
}
// a rollback may be better here
$sqlQueryRecreate = '# Restoring the dropped constraint...' . "\n";
$sqlQueryRecreate .= $this->getSQLToCreateForeignKey(
$table,
$masterField,
$existrelForeign[$masterFieldMd5]['ref_db_name'],
$existrelForeign[$masterFieldMd5]['ref_table_name'],
$existrelForeign[$masterFieldMd5]['ref_index_list'],
$existrelForeign[$masterFieldMd5]['constraint'],
$optionsArray[$existrelForeign[$masterFieldMd5]['on_delete'] ?? ''] ?? null,
$optionsArray[$existrelForeign[$masterFieldMd5]['on_update'] ?? ''] ?? null
);
if (! isset($_POST['preview_sql'])) {
$displayQuery .= $sqlQueryRecreate . "\n";
$this->dbi->tryQuery($sqlQueryRecreate);
} else {
$previewSqlData .= $sqlQueryRecreate;
}
}
return [
$htmlOutput,
$previewSqlData,
$displayQuery,
$seenError,
];
}
/**
* Returns the SQL query for foreign key constraint creation
*
* @param string $table table name
* @param array $field field names
* @param string $foreignDb foreign database name
* @param string $foreignTable foreign table name
* @param array $foreignField foreign field names
* @param string $name name of the constraint
* @param string $onDelete on delete action
* @param string $onUpdate on update action
*
* @return string SQL query for foreign key constraint creation
*/
private function getSQLToCreateForeignKey(
$table,
array $field,
$foreignDb,
$foreignTable,
array $foreignField,
$name = null,
$onDelete = null,
$onUpdate = null
) {
$sqlQuery = 'ALTER TABLE ' . Util::backquote($table) . ' ADD ';
// if user entered a constraint name
if (! empty($name)) {
$sqlQuery .= ' CONSTRAINT ' . Util::backquote($name);
}
foreach ($field as $key => $oneField) {
$field[$key] = Util::backquote($oneField);
}
foreach ($foreignField as $key => $oneField) {
$foreignField[$key] = Util::backquote($oneField);
}
$sqlQuery .= ' FOREIGN KEY (' . implode(', ', $field) . ') REFERENCES '
. ($this->dbName != $foreignDb
? Util::backquote($foreignDb) . '.' : '')
. Util::backquote($foreignTable)
. '(' . implode(', ', $foreignField) . ')';
if (! empty($onDelete)) {
$sqlQuery .= ' ON DELETE ' . $onDelete;
}
if (! empty($onUpdate)) {
$sqlQuery .= ' ON UPDATE ' . $onUpdate;
}
$sqlQuery .= ';';
return $sqlQuery;
}
/**
* Returns the generation expression for virtual columns
*
* @param string $column name of the column
*
* @return array|bool associative array of column name and their expressions
* or false on failure
*/
public function getColumnGenerationExpression($column = null)
{
if (
Compatibility::isMySqlOrPerconaDb()
&& $this->dbi->getVersion() > 50705
&& ! $GLOBALS['cfg']['Server']['DisableIS']
) {
$sql = "SELECT
`COLUMN_NAME` AS `Field`,
`GENERATION_EXPRESSION` AS `Expression`
FROM
`information_schema`.`COLUMNS`
WHERE
`TABLE_SCHEMA` = '" . $this->dbi->escapeString($this->dbName) . "'
AND `TABLE_NAME` = '" . $this->dbi->escapeString($this->name) . "'";
if ($column != null) {
$sql .= " AND `COLUMN_NAME` = '" . $this->dbi->escapeString($column)
. "'";
}
return $this->dbi->fetchResult($sql, 'Field', 'Expression');
}
$createTable = $this->showCreate();
if (! $createTable) {
return false;
}
$parser = new Parser($createTable);
$stmt = $parser->statements[0];
$fields = [];
if ($stmt instanceof CreateStatement) {
$fields = TableUtils::getFields($stmt);
}
if ($column != null) {
$expression = isset($fields[$column]['expr']) ?
substr($fields[$column]['expr'], 1, -1) : '';
return [$column => $expression];
}
$ret = [];
foreach ($fields as $field => $options) {
if (! isset($options['expr'])) {
continue;
}
$ret[$field] = substr($options['expr'], 1, -1);
}
return $ret;
}
/**
* Returns the CREATE statement for this table
*
* @return mixed
*/
public function showCreate()
{
return $this->dbi->fetchValue(
'SHOW CREATE TABLE ' . Util::backquote($this->dbName) . '.'
. Util::backquote($this->name),
1
);
}
/**
* Returns the real row count for a table
*/
public function getRealRowCountTable(): ?int
{
// SQL query to get row count for a table.
$result = $this->dbi->fetchSingleRow(
sprintf(
'SELECT COUNT(*) AS %s FROM %s.%s',
Util::backquote('row_count'),
Util::backquote($this->dbName),
Util::backquote($this->name)
)
);
if (! is_array($result)) {
return null;
}
return (int) $result['row_count'];
}
/**
* Get columns with indexes
*
* @param int $types types bitmask
*
* @return array an array of columns
*/
public function getColumnsWithIndex($types)
{
$columnsWithIndex = [];
foreach (
Index::getFromTableByChoice($this->name, $this->dbName, $types) as $index
) {
$columns = $index->getColumns();
$columnsWithIndex = array_merge($columnsWithIndex, array_keys($columns));
}
return $columnsWithIndex;
}
}
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