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Guilhem Lavaux 2025-02-11 21:30:02 +01:00
parent 0a686aeb9a
commit c4ffa0f6ee
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497
admin/phpMyAdmin/libraries/classes/CreateAddField.php
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@ -1,497 +0,0 @@
<?php
declare(strict_types=1);
namespace PhpMyAdmin;
use PhpMyAdmin\Html\Generator;
use function count;
use function implode;
use function in_array;
use function intval;
use function json_decode;
use function min;
use function preg_replace;
use function strlen;
use function trim;
/**
* Set of functions for /table/create and /table/add-field
*/
class CreateAddField
{
/** @var DatabaseInterface */
private $dbi;
/**
* @param DatabaseInterface $dbi DatabaseInterface interface
*/
public function __construct(DatabaseInterface $dbi)
{
$this->dbi = $dbi;
}
/**
* Transforms the radio button field_key into 4 arrays
*
* @return array An array of arrays which represents column keys for each index type
* @psalm-return array{int, array, array, array, array, array}
*/
private function getIndexedColumns(): array
{
$fieldCount = count($_POST['field_name']);
$fieldPrimary = json_decode($_POST['primary_indexes'], true);
$fieldIndex = json_decode($_POST['indexes'], true);
$fieldUnique = json_decode($_POST['unique_indexes'], true);
$fieldFullText = json_decode($_POST['fulltext_indexes'], true);
$fieldSpatial = json_decode($_POST['spatial_indexes'], true);
return [
$fieldCount,
$fieldPrimary,
$fieldIndex,
$fieldUnique,
$fieldFullText,
$fieldSpatial,
];
}
/**
* Initiate the column creation statement according to the table creation or
* add columns to a existing table
*
* @param int $fieldCount number of columns
* @param bool $isCreateTable true if requirement is to get the statement
* for table creation
*
* @return array An array of initial sql statements
* according to the request
*/
private function buildColumnCreationStatement(
int $fieldCount,
bool $isCreateTable = true
): array {
$definitions = [];
$previousField = -1;
for ($i = 0; $i < $fieldCount; ++$i) {
// '0' is also empty for php :-(
if (strlen($_POST['field_name'][$i]) === 0) {
continue;
}
$definition = $this->getStatementPrefix($isCreateTable) . Table::generateFieldSpec(
trim($_POST['field_name'][$i]),
$_POST['field_type'][$i],
$_POST['field_length'][$i],
$_POST['field_attribute'][$i],
$_POST['field_collation'][$i] ?? '',
$_POST['field_null'][$i] ?? 'NO',
$_POST['field_default_type'][$i],
$_POST['field_default_value'][$i],
$_POST['field_extra'][$i] ?? false,
$_POST['field_comments'][$i] ?? '',
$_POST['field_virtuality'][$i] ?? '',
$_POST['field_expression'][$i] ?? ''
);
$definition .= $this->setColumnCreationStatementSuffix($previousField, $isCreateTable);
$previousField = $i;
$definitions[] = $definition;
}
return $definitions;
}
/**
* Set column creation suffix according to requested position of the new column
*
* @param int $previousField previous field for ALTER statement
* @param bool $isCreateTable true if requirement is to get the statement
* for table creation
*
* @return string suffix
*/
private function setColumnCreationStatementSuffix(
int $previousField,
bool $isCreateTable = true
): string {
// no suffix is needed if request is a table creation
if ($isCreateTable) {
return ' ';
}
if ((string) $_POST['field_where'] === 'last') {
return ' ';
}
// Only the first field can be added somewhere other than at the end
if ($previousField === -1) {
if ((string) $_POST['field_where'] === 'first') {
return ' FIRST';
}
if (! empty($_POST['after_field'])) {
return ' AFTER '
. Util::backquote($_POST['after_field']);
}
return ' ';
}
return ' AFTER ' . Util::backquote($_POST['field_name'][$previousField]);
}
/**
* Create relevant index statements
*
* @param array $index an array of index columns
* @param string $indexChoice index choice that which represents
* the index type of $indexed_fields
* @param bool $isCreateTable true if requirement is to get the statement
* for table creation
*
* @return string sql statement for indexes
*/
private function buildIndexStatement(
array $index,
string $indexChoice,
bool $isCreateTable = true
): string {
if ($index === []) {
return '';
}
$sqlQuery = $this->getStatementPrefix($isCreateTable) . $indexChoice;
if (! empty($index['Key_name']) && $index['Key_name'] !== 'PRIMARY') {
$sqlQuery .= ' ' . Util::backquote($index['Key_name']);
}
$indexFields = [];
foreach ($index['columns'] as $key => $column) {
$indexFields[$key] = Util::backquote($_POST['field_name'][$column['col_index']]);
if (! $column['size']) {
continue;
}
$indexFields[$key] .= '(' . $column['size'] . ')';
}
$sqlQuery .= ' (' . implode(', ', $indexFields) . ')';
if ($index['Key_block_size']) {
$sqlQuery .= ' KEY_BLOCK_SIZE = '
. $this->dbi->escapeString($index['Key_block_size']);
}
// specifying index type is allowed only for primary, unique and index only
if (
$index['Index_choice'] !== 'SPATIAL'
&& $index['Index_choice'] !== 'FULLTEXT'
&& in_array($index['Index_type'], Index::getIndexTypes())
) {
$sqlQuery .= ' USING ' . $index['Index_type'];
}
if ($index['Index_choice'] === 'FULLTEXT' && $index['Parser']) {
$sqlQuery .= ' WITH PARSER ' . $this->dbi->escapeString($index['Parser']);
}
if ($index['Index_comment']) {
$sqlQuery .= " COMMENT '" . $this->dbi->escapeString($index['Index_comment']) . "'";
}
return $sqlQuery;
}
/**
* Statement prefix for the buildColumnCreationStatement()
*
* @param bool $isCreateTable true if requirement is to get the statement
* for table creation
*
* @return string prefix
*/
private function getStatementPrefix(bool $isCreateTable = true): string
{
return $isCreateTable ? '' : 'ADD ';
}
/**
* Returns sql statement according to the column and index specifications as
* requested
*
* @param bool $isCreateTable true if requirement is to get the statement
* for table creation
*
* @return string sql statement
*/
private function getColumnCreationStatements(bool $isCreateTable = true): string
{
$sqlStatement = '';
[
$fieldCount,
$fieldPrimary,
$fieldIndex,
$fieldUnique,
$fieldFullText,
$fieldSpatial,
] = $this->getIndexedColumns();
$definitions = $this->buildColumnCreationStatement($fieldCount, $isCreateTable);
// Builds the PRIMARY KEY statements
if (isset($fieldPrimary[0])) {
$definitions[] = $this->buildIndexStatement($fieldPrimary[0], 'PRIMARY KEY', $isCreateTable);
}
// Builds the INDEX statements
foreach ($fieldIndex as $index) {
$definitions[] = $this->buildIndexStatement($index, 'INDEX', $isCreateTable);
}
// Builds the UNIQUE statements
foreach ($fieldUnique as $index) {
$definitions[] = $this->buildIndexStatement($index, 'UNIQUE', $isCreateTable);
}
// Builds the FULLTEXT statements
foreach ($fieldFullText as $index) {
$definitions[] = $this->buildIndexStatement($index, 'FULLTEXT', $isCreateTable);
}
// Builds the SPATIAL statements
foreach ($fieldSpatial as $index) {
$definitions[] = $this->buildIndexStatement($index, 'SPATIAL', $isCreateTable);
}
if ($definitions !== []) {
$sqlStatement = implode(', ', $definitions);
}
return preg_replace('@, $@', '', $sqlStatement) ?? '';
}
/**
* Returns the partitioning clause
*
* @return string partitioning clause
*/
public function getPartitionsDefinition(): string
{
$sqlQuery = '';
if (
! empty($_POST['partition_by'])
&& ! empty($_POST['partition_expr'])
&& ! empty($_POST['partition_count'])
&& $_POST['partition_count'] > 1
) {
$sqlQuery .= ' PARTITION BY ' . $_POST['partition_by']
. ' (' . $_POST['partition_expr'] . ')'
. ' PARTITIONS ' . $_POST['partition_count'];
}
if (
! empty($_POST['subpartition_by'])
&& ! empty($_POST['subpartition_expr'])
&& ! empty($_POST['subpartition_count'])
&& $_POST['subpartition_count'] > 1
) {
$sqlQuery .= ' SUBPARTITION BY ' . $_POST['subpartition_by']
. ' (' . $_POST['subpartition_expr'] . ')'
. ' SUBPARTITIONS ' . $_POST['subpartition_count'];
}
if (! empty($_POST['partitions'])) {
$partitions = [];
foreach ($_POST['partitions'] as $partition) {
$partitions[] = $this->getPartitionDefinition($partition);
}
$sqlQuery .= ' (' . implode(', ', $partitions) . ')';
}
return $sqlQuery;
}
/**
* Returns the definition of a partition/subpartition
*
* @param array $partition array of partition/subpartition details
* @param bool $isSubPartition whether a subpartition
*
* @return string partition/subpartition definition
*/
private function getPartitionDefinition(
array $partition,
bool $isSubPartition = false
): string {
$sqlQuery = ' ' . ($isSubPartition ? 'SUB' : '') . 'PARTITION ';
$sqlQuery .= $partition['name'];
if (! empty($partition['value_type'])) {
$sqlQuery .= ' VALUES ' . $partition['value_type'];
if ($partition['value_type'] !== 'LESS THAN MAXVALUE') {
$sqlQuery .= ' (' . $partition['value'] . ')';
}
}
if (! empty($partition['engine'])) {
$sqlQuery .= ' ENGINE = ' . $partition['engine'];
}
if (! empty($partition['comment'])) {
$sqlQuery .= " COMMENT = '" . $partition['comment'] . "'";
}
if (! empty($partition['data_directory'])) {
$sqlQuery .= " DATA DIRECTORY = '" . $partition['data_directory'] . "'";
}
if (! empty($partition['index_directory'])) {
$sqlQuery .= " INDEX_DIRECTORY = '" . $partition['index_directory'] . "'";
}
if (! empty($partition['max_rows'])) {
$sqlQuery .= ' MAX_ROWS = ' . $partition['max_rows'];
}
if (! empty($partition['min_rows'])) {
$sqlQuery .= ' MIN_ROWS = ' . $partition['min_rows'];
}
if (! empty($partition['tablespace'])) {
$sqlQuery .= ' TABLESPACE = ' . $partition['tablespace'];
}
if (! empty($partition['node_group'])) {
$sqlQuery .= ' NODEGROUP = ' . $partition['node_group'];
}
if (! empty($partition['subpartitions'])) {
$subpartitions = [];
foreach ($partition['subpartitions'] as $subpartition) {
$subpartitions[] = $this->getPartitionDefinition($subpartition, true);
}
$sqlQuery .= ' (' . implode(', ', $subpartitions) . ')';
}
return $sqlQuery;
}
/**
* Function to get table creation sql query
*
* @param string $db database name
* @param string $table table name
*/
public function getTableCreationQuery(string $db, string $table): string
{
// get column addition statements
$sqlStatement = $this->getColumnCreationStatements(true);
// Builds the 'create table' statement
$sqlQuery = 'CREATE TABLE ' . Util::backquote($db) . '.'
. Util::backquote(trim($table)) . ' (' . $sqlStatement . ')';
// Adds table type, character set, comments and partition definition
if (! empty($_POST['tbl_storage_engine']) && ($_POST['tbl_storage_engine'] !== 'Default')) {
$sqlQuery .= ' ENGINE = ' . $this->dbi->escapeString($_POST['tbl_storage_engine']);
}
if (! empty($_POST['tbl_collation'])) {
$sqlQuery .= Util::getCharsetQueryPart($_POST['tbl_collation'] ?? '');
}
if (
! empty($_POST['connection'])
&& ! empty($_POST['tbl_storage_engine'])
&& $_POST['tbl_storage_engine'] === 'FEDERATED'
) {
$sqlQuery .= " CONNECTION = '"
. $this->dbi->escapeString($_POST['connection']) . "'";
}
if (! empty($_POST['comment'])) {
$sqlQuery .= ' COMMENT = \''
. $this->dbi->escapeString($_POST['comment']) . '\'';
}
$sqlQuery .= $this->getPartitionsDefinition();
$sqlQuery .= ';';
return $sqlQuery;
}
/**
* Function to get the number of fields for the table creation form
*/
public function getNumberOfFieldsFromRequest(): int
{
// Limit to 4096 fields (MySQL maximal value)
$mysqlLimit = 4096;
if (isset($_POST['submit_num_fields'])) { // adding new fields
$numberOfFields = intval($_POST['orig_num_fields']) + intval($_POST['added_fields']);
} elseif (isset($_POST['orig_num_fields'])) { // retaining existing fields
$numberOfFields = intval($_POST['orig_num_fields']);
} elseif (
isset($_POST['num_fields'])
&& intval($_POST['num_fields']) > 0
) { // new table with specified number of fields
$numberOfFields = intval($_POST['num_fields']);
} else { // new table with unspecified number of fields
$numberOfFields = 4;
}
return min($numberOfFields, $mysqlLimit);
}
/**
* Function to get the column creation statement
*
* @param string $table current table
*/
public function getColumnCreationQuery(
string $table
): string {
// get column addition statements
$sqlStatement = $this->getColumnCreationStatements(false);
$sqlQuery = 'ALTER TABLE ' .
Util::backquote($table) . ' ' . $sqlStatement;
if (isset($_POST['online_transaction'])) {
$sqlQuery .= ', ALGORITHM=INPLACE, LOCK=NONE';
}
return $sqlQuery . ';';
}
/**
* Function to execute the column creation statement
*
* @param string $db current database
* @param string $sqlQuery the query to run
* @param string $errorUrl error page url
*/
public function tryColumnCreationQuery(
string $db,
string $sqlQuery,
string $errorUrl
): bool {
// To allow replication, we first select the db to use and then run queries
// on this db.
if (! $this->dbi->selectDb($db)) {
Generator::mysqlDie(
$this->dbi->getError(),
'USE ' . Util::backquote($db),
false,
$errorUrl
);
}
return (bool) $this->dbi->tryQuery($sqlQuery);
}
}