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<?php
declare(strict_types=1);
namespace PhpMyAdmin;
use function define;
use function defined;
use function property_exists;
use const MYSQLI_BLOB_FLAG;
use const MYSQLI_ENUM_FLAG;
use const MYSQLI_MULTIPLE_KEY_FLAG;
use const MYSQLI_NOT_NULL_FLAG;
use const MYSQLI_PRI_KEY_FLAG;
use const MYSQLI_SET_FLAG;
use const MYSQLI_TYPE_BIT;
use const MYSQLI_TYPE_BLOB;
use const MYSQLI_TYPE_DATE;
use const MYSQLI_TYPE_DATETIME;
use const MYSQLI_TYPE_DECIMAL;
use const MYSQLI_TYPE_DOUBLE;
use const MYSQLI_TYPE_ENUM;
use const MYSQLI_TYPE_FLOAT;
use const MYSQLI_TYPE_GEOMETRY;
use const MYSQLI_TYPE_INT24;
use const MYSQLI_TYPE_JSON;
use const MYSQLI_TYPE_LONG;
use const MYSQLI_TYPE_LONG_BLOB;
use const MYSQLI_TYPE_LONGLONG;
use const MYSQLI_TYPE_MEDIUM_BLOB;
use const MYSQLI_TYPE_NEWDATE;
use const MYSQLI_TYPE_NEWDECIMAL;
use const MYSQLI_TYPE_NULL;
use const MYSQLI_TYPE_SET;
use const MYSQLI_TYPE_SHORT;
use const MYSQLI_TYPE_STRING;
use const MYSQLI_TYPE_TIME;
use const MYSQLI_TYPE_TIMESTAMP;
use const MYSQLI_TYPE_TINY;
use const MYSQLI_TYPE_TINY_BLOB;
use const MYSQLI_TYPE_VAR_STRING;
use const MYSQLI_TYPE_YEAR;
use const MYSQLI_UNIQUE_KEY_FLAG;
use const MYSQLI_UNSIGNED_FLAG;
use const MYSQLI_ZEROFILL_FLAG;
/**
* Handles fields Metadata
*
* NOTE: Getters are not used in all implementations due to the important cost of getters calls
*/
final class FieldMetadata
{
public const TYPE_GEOMETRY = 1;
public const TYPE_BIT = 2;
public const TYPE_JSON = 3;
public const TYPE_REAL = 4;
public const TYPE_INT = 5;
public const TYPE_BLOB = 6;
public const TYPE_UNKNOWN = -1;
public const TYPE_NULL = 7;
public const TYPE_STRING = 8;
public const TYPE_DATE = 9;
public const TYPE_TIME = 10;
public const TYPE_TIMESTAMP = 11;
public const TYPE_DATETIME = 12;
public const TYPE_YEAR = 13;
/**
* @var bool
* @readonly
*/
public $isMultipleKey;
/**
* @var bool
* @readonly
*/
public $isPrimaryKey;
/**
* @var bool
* @readonly
*/
public $isUniqueKey;
/**
* @var bool
* @readonly
*/
public $isNotNull;
/**
* @var bool
* @readonly
*/
public $isUnsigned;
/**
* @var bool
* @readonly
*/
public $isZerofill;
/**
* @var bool
* @readonly
*/
public $isNumeric;
/**
* @var bool
* @readonly
*/
public $isBlob;
/**
* @var bool
* @readonly
*/
public $isBinary;
/**
* @var bool
* @readonly
*/
public $isEnum;
/**
* @var bool
* @readonly
*/
public $isSet;
/** @var int|null */
private $mappedType;
/**
* @var bool
* @readonly
*/
public $isMappedTypeBit;
/**
* @var bool
* @readonly
*/
public $isMappedTypeGeometry;
/**
* @var bool
* @readonly
*/
public $isMappedTypeTimestamp;
/**
* The column name
*
* @var string
*/
public $name;
/**
* The original column name if an alias did exist
*
* @var string
*/
public $orgname;
/**
* The table name
*
* @var string
*/
public $table;
/**
* The original table name
*
* @var string
*/
public $orgtable;
/**
* The charset number
*
* @readonly
* @var int
*/
public $charsetnr;
/**
* The number of decimals used (for integer fields)
*
* @readonly
* @var int
*/
public $decimals;
/**
* The width of the field, as specified in the table definition.
*
* @readonly
* @var int
*/
public $length;
/**
* A field only used by the Results class
*
* @var string
*/
public $internalMediaType;
public function __construct(int $fieldType, int $fieldFlags, object $field)
{
$this->mappedType = $this->getTypeMap()[$fieldType] ?? null;
$this->isMultipleKey = (bool) ($fieldFlags & MYSQLI_MULTIPLE_KEY_FLAG);
$this->isPrimaryKey = (bool) ($fieldFlags & MYSQLI_PRI_KEY_FLAG);
$this->isUniqueKey = (bool) ($fieldFlags & MYSQLI_UNIQUE_KEY_FLAG);
$this->isNotNull = (bool) ($fieldFlags & MYSQLI_NOT_NULL_FLAG);
$this->isUnsigned = (bool) ($fieldFlags & MYSQLI_UNSIGNED_FLAG);
$this->isZerofill = (bool) ($fieldFlags & MYSQLI_ZEROFILL_FLAG);
$this->isBlob = (bool) ($fieldFlags & MYSQLI_BLOB_FLAG);
$this->isEnum = (bool) ($fieldFlags & MYSQLI_ENUM_FLAG);
$this->isSet = (bool) ($fieldFlags & MYSQLI_SET_FLAG);
// as flags 32768 can be NUM_FLAG or GROUP_FLAG
// reference: https://www.php.net/manual/en/mysqli-result.fetch-fields.php
// so check field type instead of flags
$this->isNumeric = $this->isType(self::TYPE_INT) || $this->isType(self::TYPE_REAL);
/*
MYSQLI_PART_KEY_FLAG => 'part_key',
MYSQLI_TIMESTAMP_FLAG => 'timestamp',
MYSQLI_AUTO_INCREMENT_FLAG => 'auto_increment',
*/
$this->isMappedTypeBit = $this->isType(self::TYPE_BIT);
$this->isMappedTypeGeometry = $this->isType(self::TYPE_GEOMETRY);
$this->isMappedTypeTimestamp = $this->isType(self::TYPE_TIMESTAMP);
$this->name = property_exists($field, 'name') ? $field->name : '';
$this->orgname = property_exists($field, 'orgname') ? $field->orgname : '';
$this->table = property_exists($field, 'table') ? $field->table : '';
$this->orgtable = property_exists($field, 'orgtable') ? $field->orgtable : '';
$this->charsetnr = property_exists($field, 'charsetnr') ? $field->charsetnr : -1;
$this->decimals = property_exists($field, 'decimals') ? $field->decimals : 0;
$this->length = property_exists($field, 'length') ? $field->length : 0;
// 63 is the number for the MySQL charset "binary"
$this->isBinary = (
$fieldType === MYSQLI_TYPE_TINY_BLOB || $fieldType === MYSQLI_TYPE_BLOB
|| $fieldType === MYSQLI_TYPE_MEDIUM_BLOB || $fieldType === MYSQLI_TYPE_LONG_BLOB
|| $fieldType === MYSQLI_TYPE_VAR_STRING || $fieldType === MYSQLI_TYPE_STRING
) && $this->charsetnr == 63;
}
/**
* @see https://dev.mysql.com/doc/connectors/en/apis-php-mysqli.constants.html
*/
private function getTypeMap(): array
{
// Issue #16043 - client API mysqlnd seem not to have MYSQLI_TYPE_JSON defined
if (! defined('MYSQLI_TYPE_JSON')) {
define('MYSQLI_TYPE_JSON', 245);
}
// Build an associative array for a type look up
$typeAr = [];
$typeAr[MYSQLI_TYPE_DECIMAL] = self::TYPE_REAL;
$typeAr[MYSQLI_TYPE_NEWDECIMAL] = self::TYPE_REAL;
$typeAr[MYSQLI_TYPE_BIT] = self::TYPE_INT;
$typeAr[MYSQLI_TYPE_TINY] = self::TYPE_INT;
$typeAr[MYSQLI_TYPE_SHORT] = self::TYPE_INT;
$typeAr[MYSQLI_TYPE_LONG] = self::TYPE_INT;
$typeAr[MYSQLI_TYPE_FLOAT] = self::TYPE_REAL;
$typeAr[MYSQLI_TYPE_DOUBLE] = self::TYPE_REAL;
$typeAr[MYSQLI_TYPE_NULL] = self::TYPE_NULL;
$typeAr[MYSQLI_TYPE_TIMESTAMP] = self::TYPE_TIMESTAMP;
$typeAr[MYSQLI_TYPE_LONGLONG] = self::TYPE_INT;
$typeAr[MYSQLI_TYPE_INT24] = self::TYPE_INT;
$typeAr[MYSQLI_TYPE_DATE] = self::TYPE_DATE;
$typeAr[MYSQLI_TYPE_TIME] = self::TYPE_TIME;
$typeAr[MYSQLI_TYPE_DATETIME] = self::TYPE_DATETIME;
$typeAr[MYSQLI_TYPE_YEAR] = self::TYPE_YEAR;
$typeAr[MYSQLI_TYPE_NEWDATE] = self::TYPE_DATE;
$typeAr[MYSQLI_TYPE_ENUM] = self::TYPE_UNKNOWN;
$typeAr[MYSQLI_TYPE_SET] = self::TYPE_UNKNOWN;
$typeAr[MYSQLI_TYPE_TINY_BLOB] = self::TYPE_BLOB;
$typeAr[MYSQLI_TYPE_MEDIUM_BLOB] = self::TYPE_BLOB;
$typeAr[MYSQLI_TYPE_LONG_BLOB] = self::TYPE_BLOB;
$typeAr[MYSQLI_TYPE_BLOB] = self::TYPE_BLOB;
$typeAr[MYSQLI_TYPE_VAR_STRING] = self::TYPE_STRING;
$typeAr[MYSQLI_TYPE_STRING] = self::TYPE_STRING;
// MySQL returns MYSQLI_TYPE_STRING for CHAR
// and MYSQLI_TYPE_CHAR === MYSQLI_TYPE_TINY
// so this would override TINYINT and mark all TINYINT as string
// see https://github.com/phpmyadmin/phpmyadmin/issues/8569
//$typeAr[MYSQLI_TYPE_CHAR] = self::TYPE_STRING;
$typeAr[MYSQLI_TYPE_GEOMETRY] = self::TYPE_GEOMETRY;
$typeAr[MYSQLI_TYPE_BIT] = self::TYPE_BIT;
$typeAr[MYSQLI_TYPE_JSON] = self::TYPE_JSON;
return $typeAr;
}
public function isNotNull(): bool
{
return $this->isNotNull;
}
public function isNumeric(): bool
{
return $this->isNumeric;
}
public function isBinary(): bool
{
return $this->isBinary;
}
public function isBlob(): bool
{
return $this->isBlob;
}
public function isPrimaryKey(): bool
{
return $this->isPrimaryKey;
}
public function isUniqueKey(): bool
{
return $this->isUniqueKey;
}
public function isMultipleKey(): bool
{
return $this->isMultipleKey;
}
public function isUnsigned(): bool
{
return $this->isUnsigned;
}
public function isZerofill(): bool
{
return $this->isZerofill;
}
public function isEnum(): bool
{
return $this->isEnum;
}
public function isSet(): bool
{
return $this->isSet;
}
/**
* Checks that it is type DATE/TIME/DATETIME
*/
public function isDateTimeType(): bool
{
return $this->isType(self::TYPE_DATE)
|| $this->isType(self::TYPE_TIME)
|| $this->isType(self::TYPE_DATETIME);
}
/**
* Checks that it contains time
* A "DATE" field returns false for example
*/
public function isTimeType(): bool
{
return $this->isType(self::TYPE_TIME)
|| $this->isType(self::TYPE_TIMESTAMP)
|| $this->isType(self::TYPE_DATETIME);
}
/**
* Get the mapped type as a string
*
* @return string Empty when nothing could be matched
*/
public function getMappedType(): string
{
$types = [
self::TYPE_GEOMETRY => 'geometry',
self::TYPE_BIT => 'bit',
self::TYPE_JSON => 'json',
self::TYPE_REAL => 'real',
self::TYPE_INT => 'int',
self::TYPE_BLOB => 'blob',
self::TYPE_UNKNOWN => 'unknown',
self::TYPE_NULL => 'null',
self::TYPE_STRING => 'string',
self::TYPE_DATE => 'date',
self::TYPE_TIME => 'time',
self::TYPE_TIMESTAMP => 'timestamp',
self::TYPE_DATETIME => 'datetime',
self::TYPE_YEAR => 'year',
];
return $types[$this->mappedType] ?? '';
}
/**
* Check if it is the mapped type
*
* @phpstan-param self::TYPE_* $type
*/
public function isType(int $type): bool
{
return $this->mappedType === $type;
}
/**
* Check if it is NOT the mapped type
*
* @phpstan-param self::TYPE_* $type
*/
public function isNotType(int $type): bool
{
return $this->mappedType !== $type;
}
}
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