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<?php
declare(strict_types=1);
namespace PhpMyAdmin;
use PhpMyAdmin\Dbal\ResultInterface;
use PhpMyAdmin\Html\Generator;
use PhpMyAdmin\Html\MySQLDocumentation;
use PhpMyAdmin\Query\Compatibility;
use PhpMyAdmin\Query\Utilities;
use PhpMyAdmin\SqlParser\Components\Expression;
use PhpMyAdmin\SqlParser\Context;
use PhpMyAdmin\SqlParser\Token;
use PhpMyAdmin\Utils\SessionCache;
use Stringable;
use function __;
use function _pgettext;
use function abs;
use function array_key_exists;
use function array_map;
use function array_merge;
use function array_shift;
use function array_unique;
use function basename;
use function bin2hex;
use function chr;
use function count;
use function ctype_digit;
use function date;
use function decbin;
use function explode;
use function extension_loaded;
use function fclose;
use function floatval;
use function floor;
use function fread;
use function function_exists;
use function htmlentities;
use function htmlspecialchars;
use function htmlspecialchars_decode;
use function implode;
use function in_array;
use function ini_get;
use function is_array;
use function is_callable;
use function is_object;
use function is_scalar;
use function is_string;
use function log10;
use function mb_detect_encoding;
use function mb_strlen;
use function mb_strpos;
use function mb_strrpos;
use function mb_strstr;
use function mb_strtolower;
use function mb_substr;
use function number_format;
use function ord;
use function parse_url;
use function preg_match;
use function preg_quote;
use function preg_replace;
use function random_bytes;
use function range;
use function reset;
use function round;
use function rtrim;
use function set_time_limit;
use function sort;
use function sprintf;
use function str_contains;
use function str_getcsv;
use function str_pad;
use function str_replace;
use function strcasecmp;
use function strftime;
use function strlen;
use function strrev;
use function strtolower;
use function strtr;
use function substr;
use function time;
use function trim;
use function uksort;
use const ENT_COMPAT;
use const ENT_QUOTES;
use const PHP_INT_SIZE;
use const PHP_MAJOR_VERSION;
use const STR_PAD_LEFT;
/**
* Misc functions used all over the scripts.
*/
class Util
{
/**
* Checks whether configuration value tells to show icons.
*
* @param string $value Configuration option name
*/
public static function showIcons($value): bool
{
return in_array($GLOBALS['cfg'][$value], ['icons', 'both']);
}
/**
* Checks whether configuration value tells to show text.
*
* @param string $value Configuration option name
*/
public static function showText($value): bool
{
return in_array($GLOBALS['cfg'][$value], ['text', 'both']);
}
/**
* Returns the formatted maximum size for an upload
*
* @param int|float|string $maxUploadSize the size
*
* @return string the message
*/
public static function getFormattedMaximumUploadSize($maxUploadSize): string
{
// I have to reduce the second parameter (sensitiveness) from 6 to 4
// to avoid weird results like 512 kKib
[$maxSize, $maxUnit] = self::formatByteDown($maxUploadSize, 4);
return '(' . sprintf(__('Max: %s%s'), $maxSize, $maxUnit) . ')';
}
/**
* Add slashes before "_" and "%" characters for using them in MySQL
* database, table and field names.
* Note: This function does not escape backslashes!
*
* @param string $name the string to escape
*
* @return string the escaped string
*/
public static function escapeMysqlWildcards($name): string
{
return strtr($name, ['_' => '\\_', '%' => '\\%']);
}
/**
* removes slashes before "_" and "%" characters
* Note: This function does not unescape backslashes!
*
* @param string $name the string to escape
*
* @return string the escaped string
*/
public static function unescapeMysqlWildcards($name): string
{
return strtr($name, ['\\_' => '_', '\\%' => '%']);
}
/**
* removes quotes (',",`) from a quoted string
*
* checks if the string is quoted and removes this quotes
*
* @param string $quotedString string to remove quotes from
* @param string $quote type of quote to remove
*
* @return string unquoted string
*/
public static function unQuote(string $quotedString, ?string $quote = null): string
{
$quotes = [];
if ($quote === null) {
$quotes[] = '`';
$quotes[] = '"';
$quotes[] = "'";
} else {
$quotes[] = $quote;
}
foreach ($quotes as $quote) {
if (mb_substr($quotedString, 0, 1) === $quote && mb_substr($quotedString, -1, 1) === $quote) {
$unquotedString = mb_substr($quotedString, 1, -1);
// replace escaped quotes
$unquotedString = str_replace($quote . $quote, $quote, $unquotedString);
return $unquotedString;
}
}
return $quotedString;
}
/**
* Get a URL link to the official MySQL documentation
*
* @param string $link contains name of page/anchor that is being linked
* @param string $anchor anchor to page part
*
* @return string the URL link
*/
public static function getMySQLDocuURL(string $link, string $anchor = ''): string
{
global $dbi;
// Fixup for newly used names:
$link = str_replace('_', '-', mb_strtolower($link));
if (empty($link)) {
$link = 'index';
}
$mysql = '5.5';
$lang = 'en';
if (isset($dbi)) {
$serverVersion = $dbi->getVersion();
if ($serverVersion >= 80000) {
$mysql = '8.0';
} elseif ($serverVersion >= 50700) {
$mysql = '5.7';
} elseif ($serverVersion >= 50600) {
$mysql = '5.6';
} elseif ($serverVersion >= 50500) {
$mysql = '5.5';
}
}
$url = 'https://dev.mysql.com/doc/refman/'
. $mysql . '/' . $lang . '/' . $link . '.html';
if (! empty($anchor)) {
$url .= '#' . $anchor;
}
return Core::linkURL($url);
}
/**
* Get a URL link to the official documentation page of either MySQL
* or MariaDB depending on the database server
* of the user.
*
* @param bool $isMariaDB if the database server is MariaDB
*
* @return string The URL link
*/
public static function getDocuURL(bool $isMariaDB = false): string
{
if ($isMariaDB) {
$url = 'https://mariadb.com/kb/en/documentation/';
return Core::linkURL($url);
}
return self::getMySQLDocuURL('');
}
/**
* Check the correct row count
*
* @param string $db the db name
* @param array $table the table infos
*
* @return int the possibly modified row count
*/
private static function checkRowCount($db, array $table)
{
global $dbi;
$rowCount = 0;
if ($table['Rows'] === null) {
// Do not check exact row count here,
// if row count is invalid possibly the table is defect
// and this would break the navigation panel;
// but we can check row count if this is a view or the
// information_schema database
// since Table::countRecords() returns a limited row count
// in this case.
// set this because Table::countRecords() can use it
$tableIsView = $table['TABLE_TYPE'] === 'VIEW';
if ($tableIsView || Utilities::isSystemSchema($db)) {
$rowCount = $dbi
->getTable($db, $table['Name'])
->countRecords();
}
}
return $rowCount;
}
/**
* returns array with tables of given db with extended information and grouped
*
* @param string $db
*
* @return array (recursive) grouped table list
*/
public static function getTableList($db): array
{
global $dbi;
$sep = $GLOBALS['cfg']['NavigationTreeTableSeparator'];
$tables = $dbi->getTablesFull($db);
if ($GLOBALS['cfg']['NaturalOrder']) {
uksort($tables, 'strnatcasecmp');
}
if (count($tables) < 1) {
return $tables;
}
$default = [
'Name' => '',
'Rows' => 0,
'Comment' => '',
'disp_name' => '',
];
$tableGroups = [];
foreach ($tables as $table) {
/** @var string $tableName */
$tableName = $table['TABLE_NAME'];
$table['Rows'] = self::checkRowCount($db, $table);
// in $group we save the reference to the place in $table_groups
// where to store the table info
if ($GLOBALS['cfg']['NavigationTreeEnableGrouping'] && $sep && mb_strstr($tableName, $sep)) {
$parts = explode($sep, $tableName);
$group =& $tableGroups;
$i = 0;
$groupNameFull = '';
$partsCount = count($parts) - 1;
while (($i < $partsCount) && ($i < $GLOBALS['cfg']['NavigationTreeTableLevel'])) {
$groupName = $parts[$i] . $sep;
$groupNameFull .= $groupName;
if (! isset($group[$groupName])) {
$group[$groupName] = [];
$group[$groupName]['is' . $sep . 'group'] = true;
$group[$groupName]['tab' . $sep . 'count'] = 1;
$group[$groupName]['tab' . $sep . 'group'] = $groupNameFull;
} elseif (! isset($group[$groupName]['is' . $sep . 'group'])) {
$table = $group[$groupName];
$group[$groupName] = [];
$group[$groupName][$groupName] = $table;
$group[$groupName]['is' . $sep . 'group'] = true;
$group[$groupName]['tab' . $sep . 'count'] = 1;
$group[$groupName]['tab' . $sep . 'group'] = $groupNameFull;
} else {
$group[$groupName]['tab' . $sep . 'count']++;
}
$group =& $group[$groupName];
$i++;
}
} else {
if (! isset($tableGroups[$tableName])) {
$tableGroups[$tableName] = [];
}
$group =& $tableGroups;
}
$table['disp_name'] = $table['Name'];
$group[$tableName] = array_merge($default, $table);
}
return $tableGroups;
}
/* ----------------------- Set of misc functions ----------------------- */
/**
* Adds backquotes on both sides of a database, table or field name.
* and escapes backquotes inside the name with another backquote
*
* example:
* <code>
* echo backquote('owner`s db'); // `owner``s db`
*
* </code>
*
* @param Stringable|string|null $identifier the database, table or field name to "backquote"
*/
public static function backquote($identifier): string
{
return static::backquoteCompat($identifier, 'NONE', true);
}
/**
* Adds backquotes on both sides of a database, table or field name.
* in compatibility mode
*
* example:
* <code>
* echo backquoteCompat('owner`s db'); // `owner``s db`
*
* </code>
*
* @param Stringable|string|null $identifier the database, table or field name to "backquote"
* @param string $compatibility string compatibility mode (used by dump functions)
* @param bool|null $doIt a flag to bypass this function (used by dump functions)
*/
public static function backquoteCompat(
$identifier,
string $compatibility = 'MSSQL',
$doIt = true
): string {
$identifier = (string) $identifier;
if ($identifier === '' || $identifier === '*') {
return $identifier;
}
if (! $doIt && ! ((int) Context::isKeyword($identifier) & Token::FLAG_KEYWORD_RESERVED)) {
return $identifier;
}
$quote = '`';
$escapeChar = '`';
if ($compatibility === 'MSSQL') {
$quote = '"';
$escapeChar = '\\';
}
return $quote . str_replace($quote, $escapeChar . $quote, $identifier) . $quote;
}
/**
* Formats $value to byte view
*
* @param float|int|string|null $value the value to format
* @param int $limes the sensitiveness
* @param int $comma the number of decimals to retain
*
* @return array|null the formatted value and its unit
*/
public static function formatByteDown($value, $limes = 6, $comma = 0): ?array
{
if ($value === null) {
return null;
}
if (is_string($value)) {
$value = (float) $value;
}
$byteUnits = [
/* l10n: shortcuts for Byte */
__('B'),
/* l10n: shortcuts for Kilobyte */
__('KiB'),
/* l10n: shortcuts for Megabyte */
__('MiB'),
/* l10n: shortcuts for Gigabyte */
__('GiB'),
/* l10n: shortcuts for Terabyte */
__('TiB'),
/* l10n: shortcuts for Petabyte */
__('PiB'),
/* l10n: shortcuts for Exabyte */
__('EiB'),
];
$dh = 10 ** $comma;
$li = 10 ** $limes;
$unit = $byteUnits[0];
for ($d = 6, $ex = 15; $d >= 1; $d--, $ex -= 3) {
$unitSize = $li * 10 ** $ex;
if (isset($byteUnits[$d]) && $value >= $unitSize) {
// use 1024.0 to avoid integer overflow on 64-bit machines
$value = round($value / (1024 ** $d / $dh)) / $dh;
$unit = $byteUnits[$d];
break 1;
}
}
if ($unit != $byteUnits[0]) {
// if the unit is not bytes (as represented in current language)
// reformat with max length of 5
// 4th parameter=true means do not reformat if value < 1
$returnValue = self::formatNumber($value, 5, $comma, true, false);
} else {
// do not reformat, just handle the locale
$returnValue = self::formatNumber($value, 0);
}
return [
trim($returnValue),
$unit,
];
}
/**
* Formats $value to the given length and appends SI prefixes
* with a $length of 0 no truncation occurs, number is only formatted
* to the current locale
*
* examples:
* <code>
* echo formatNumber(123456789, 6); // 123,457 k
* echo formatNumber(-123456789, 4, 2); // -123.46 M
* echo formatNumber(-0.003, 6); // -3 m
* echo formatNumber(0.003, 3, 3); // 0.003
* echo formatNumber(0.00003, 3, 2); // 0.03 m
* echo formatNumber(0, 6); // 0
* </code>
*
* @param float|int|string $value the value to format
* @param int $digitsLeft number of digits left of the comma
* @param int $digitsRight number of digits right of the comma
* @param bool $onlyDown do not reformat numbers below 1
* @param bool $noTrailingZero removes trailing zeros right of the comma (default: true)
*
* @return string the formatted value and its unit
*/
public static function formatNumber(
$value,
$digitsLeft = 3,
$digitsRight = 0,
$onlyDown = false,
$noTrailingZero = true
) {
if ($value == 0) {
return '0';
}
if (is_string($value)) {
$value = (float) $value;
}
$originalValue = $value;
//number_format is not multibyte safe, str_replace is safe
if ($digitsLeft === 0) {
$value = number_format(
(float) $value,
$digitsRight,
/* l10n: Decimal separator */
__('.'),
/* l10n: Thousands separator */
__(',')
);
if (($originalValue != 0) && (floatval($value) == 0)) {
$value = ' <' . (1 / 10 ** $digitsRight);
}
return $value;
}
// this units needs no translation, ISO
$units = [
-8 => 'y',
-7 => 'z',
-6 => 'a',
-5 => 'f',
-4 => 'p',
-3 => 'n',
-2 => 'µ',
-1 => 'm',
0 => ' ',
1 => 'k',
2 => 'M',
3 => 'G',
4 => 'T',
5 => 'P',
6 => 'E',
7 => 'Z',
8 => 'Y',
];
/* l10n: Decimal separator */
$decimalSep = __('.');
/* l10n: Thousands separator */
$thousandsSep = __(',');
// check for negative value to retain sign
if ($value < 0) {
$sign = '-';
$value = abs($value);
} else {
$sign = '';
}
$dh = 10 ** $digitsRight;
/*
* This gives us the right SI prefix already,
* but $digits_left parameter not incorporated
*/
$d = floor(log10((float) $value) / 3);
/*
* Lowering the SI prefix by 1 gives us an additional 3 zeros
* So if we have 3,6,9,12.. free digits ($digits_left - $cur_digits)
* to use, then lower the SI prefix
*/
$curDigits = floor(log10($value / 1000 ** $d) + 1);
if ($digitsLeft > $curDigits) {
$d -= floor(($digitsLeft - $curDigits) / 3);
}
if ($d < 0 && $onlyDown) {
$d = 0;
}
$value = round($value / (1000 ** $d / $dh)) / $dh;
$unit = $units[$d];
// number_format is not multibyte safe, str_replace is safe
$formattedValue = number_format($value, $digitsRight, $decimalSep, $thousandsSep);
// If we don't want any zeros, remove them now
if ($noTrailingZero && str_contains($formattedValue, $decimalSep)) {
$formattedValue = preg_replace('/' . preg_quote($decimalSep, '/') . '?0+$/', '', $formattedValue);
}
if ($originalValue != 0 && floatval($value) == 0) {
return ' <' . number_format(1 / 10 ** $digitsRight, $digitsRight, $decimalSep, $thousandsSep) . ' ' . $unit;
}
return $sign . $formattedValue . ' ' . $unit;
}
/**
* Returns the number of bytes when a formatted size is given
*
* @param string|int $formattedSize the size expression (for example 8MB)
*
* @return int|float The numerical part of the expression (for example 8)
*/
public static function extractValueFromFormattedSize($formattedSize)
{
$returnValue = -1;
$formattedSize = (string) $formattedSize;
if (preg_match('/^[0-9]+GB$/', $formattedSize)) {
$returnValue = (int) mb_substr($formattedSize, 0, -2) * 1024 ** 3;
} elseif (preg_match('/^[0-9]+MB$/', $formattedSize)) {
$returnValue = (int) mb_substr($formattedSize, 0, -2) * 1024 ** 2;
} elseif (preg_match('/^[0-9]+K$/', $formattedSize)) {
$returnValue = (int) mb_substr($formattedSize, 0, -1) * 1024 ** 1;
}
return $returnValue;
}
/**
* Writes localised date
*
* @param int $timestamp the current timestamp
* @param string $format format
*
* @return string the formatted date
*/
public static function localisedDate($timestamp = -1, $format = '')
{
$month = [
/* l10n: Short month name */
__('Jan'),
/* l10n: Short month name */
__('Feb'),
/* l10n: Short month name */
__('Mar'),
/* l10n: Short month name */
__('Apr'),
/* l10n: Short month name */
_pgettext('Short month name', 'May'),
/* l10n: Short month name */
__('Jun'),
/* l10n: Short month name */
__('Jul'),
/* l10n: Short month name */
__('Aug'),
/* l10n: Short month name */
__('Sep'),
/* l10n: Short month name */
__('Oct'),
/* l10n: Short month name */
__('Nov'),
/* l10n: Short month name */
__('Dec'),
];
$dayOfWeek = [
/* l10n: Short week day name for Sunday */
_pgettext('Short week day name for Sunday', 'Sun'),
/* l10n: Short week day name for Monday */
__('Mon'),
/* l10n: Short week day name for Tuesday */
__('Tue'),
/* l10n: Short week day name for Wednesday */
__('Wed'),
/* l10n: Short week day name for Thursday */
__('Thu'),
/* l10n: Short week day name for Friday */
__('Fri'),
/* l10n: Short week day name for Saturday */
__('Sat'),
];
if ($format == '') {
/* l10n: See https://www.php.net/manual/en/function.strftime.php */
$format = __('%B %d, %Y at %I:%M %p');
}
if ($timestamp == -1) {
$timestamp = time();
}
$date = (string) preg_replace(
'@%[aA]@',
$dayOfWeek[(int) @strftime('%w', (int) $timestamp)],
$format
);
$date = (string) preg_replace(
'@%[bB]@',
$month[(int) @strftime('%m', (int) $timestamp) - 1],
$date
);
/* Fill in AM/PM */
$hours = (int) date('H', (int) $timestamp);
if ($hours >= 12) {
$amPm = _pgettext('AM/PM indication in time', 'PM');
} else {
$amPm = _pgettext('AM/PM indication in time', 'AM');
}
$date = (string) preg_replace('@%[pP]@', $amPm, $date);
// Can return false on windows for Japanese language
// See https://github.com/phpmyadmin/phpmyadmin/issues/15830
$ret = @strftime($date, (int) $timestamp);
// Some OSes such as Win8.1 Traditional Chinese version did not produce UTF-8
// output here. See https://github.com/phpmyadmin/phpmyadmin/issues/10598
if ($ret === false || mb_detect_encoding($ret, 'UTF-8', true) !== 'UTF-8') {
$ret = date('Y-m-d H:i:s', (int) $timestamp);
}
return $ret;
}
/**
* Splits a URL string by parameter
*
* @param string $url the URL
*
* @return array<int, string> the parameter/value pairs, for example [0] db=sakila
*/
public static function splitURLQuery($url): array
{
// decode encoded url separators
$separator = Url::getArgSeparator();
// on most places separator is still hard coded ...
if ($separator !== '&') {
// ... so always replace & with $separator
$url = str_replace([htmlentities('&'), '&'], [$separator, $separator], $url);
}
$url = str_replace(htmlentities($separator), $separator, $url);
// end decode
$urlParts = parse_url($url);
if (is_array($urlParts) && isset($urlParts['query']) && strlen($separator) > 0) {
return explode($separator, $urlParts['query']);
}
return [];
}
/**
* Returns a given timespan value in a readable format.
*
* @param int $seconds the timespan
*
* @return string the formatted value
*/
public static function timespanFormat($seconds): string
{
$days = floor($seconds / 86400);
if ($days > 0) {
$seconds -= $days * 86400;
}
$hours = floor($seconds / 3600);
if ($days > 0 || $hours > 0) {
$seconds -= $hours * 3600;
}
$minutes = floor($seconds / 60);
if ($days > 0 || $hours > 0 || $minutes > 0) {
$seconds -= $minutes * 60;
}
return sprintf(
__('%s days, %s hours, %s minutes and %s seconds'),
(string) $days,
(string) $hours,
(string) $minutes,
(string) $seconds
);
}
/**
* Function added to avoid path disclosures.
* Called by each script that needs parameters, it displays
* an error message and, by default, stops the execution.
*
* @param string[] $params The names of the parameters needed by the calling
* script
* @param bool $request Check parameters in request
*/
public static function checkParameters($params, $request = false): void
{
$reportedScriptName = basename($GLOBALS['PMA_PHP_SELF']);
$foundError = false;
$errorMessage = '';
if ($request) {
$array = $_REQUEST;
} else {
$array = $GLOBALS;
}
foreach ($params as $param) {
if (isset($array[$param])) {
continue;
}
$errorMessage .= $reportedScriptName
. ': ' . __('Missing parameter:') . ' '
. $param
. MySQLDocumentation::showDocumentation('faq', 'faqmissingparameters', true)
. '[br]';
$foundError = true;
}
if (! $foundError) {
return;
}
Core::fatalError($errorMessage);
}
/**
* Build a condition and with a value
*
* @param string|int|float|null $row The row value
* @param FieldMetadata $meta The field metadata
* @param int $fieldsCount A number of fields
* @param string $conditionKey A key used for BINARY fields functions
* @param string $condition The condition
*
* @return array<int,string|null>
* @psalm-return array{string|null, string}
*/
private static function getConditionValue(
$row,
FieldMetadata $meta,
int $fieldsCount,
string $conditionKey,
string $condition
): array {
global $dbi;
if ($row === null) {
return ['IS NULL', $condition];
}
$conditionValue = '';
$isBinaryString = $meta->isType(FieldMetadata::TYPE_STRING) && $meta->isBinary();
// 63 is the binary charset, see: https://dev.mysql.com/doc/internals/en/charsets.html
$isBlobAndIsBinaryCharset = $meta->isType(FieldMetadata::TYPE_BLOB) && $meta->charsetnr === 63;
if ($meta->isNumeric) {
$conditionValue = '= ' . $row;
} elseif ($isBlobAndIsBinaryCharset || (! empty($row) && $isBinaryString)) {
// hexify only if this is a true not empty BLOB or a BINARY
// do not waste memory building a too big condition
$rowLength = mb_strlen((string) $row);
if ($rowLength > 0 && $rowLength < 1000) {
// use a CAST if possible, to avoid problems
// if the field contains wildcard characters % or _
$conditionValue = '= CAST(0x' . bin2hex((string) $row) . ' AS BINARY)';
} elseif ($fieldsCount === 1) {
// when this blob is the only field present
// try settling with length comparison
$condition = ' CHAR_LENGTH(' . $conditionKey . ') ';
$conditionValue = ' = ' . $rowLength;
} else {
// this blob won't be part of the final condition
$conditionValue = null;
}
} elseif ($meta->isMappedTypeGeometry && ! empty($row)) {
// do not build a too big condition
if (mb_strlen((string) $row) < 5000) {
$condition .= '= CAST(0x' . bin2hex((string) $row) . ' AS BINARY)';
} else {
$condition = '';
}
} elseif ($meta->isMappedTypeBit) {
$conditionValue = "= b'"
. self::printableBitValue((int) $row, (int) $meta->length) . "'";
} else {
$conditionValue = '= \''
. $dbi->escapeString((string) $row) . '\'';
}
return [$conditionValue, $condition];
}
/**
* Function to generate unique condition for specified row.
*
* @param int $fieldsCount number of fields
* @param FieldMetadata[] $fieldsMeta meta information about fields
* @param array $row current row
* @param bool $forceUnique generate condition only on pk or unique
* @param string|bool $restrictToTable restrict the unique condition to this table or false if none
* @param Expression[] $expressions An array of Expression instances.
* @psalm-param array<int, mixed> $row
*
* @return array the calculated condition and whether condition is unique
*/
public static function getUniqueCondition(
$fieldsCount,
array $fieldsMeta,
array $row,
$forceUnique = false,
$restrictToTable = false,
array $expressions = []
): array {
global $dbi;
$primaryKey = '';
$uniqueKey = '';
$nonPrimaryCondition = '';
$preferredCondition = '';
$primaryKeyArray = [];
$uniqueKeyArray = [];
$nonPrimaryConditionArray = [];
$conditionArray = [];
for ($i = 0; $i < $fieldsCount; ++$i) {
$meta = $fieldsMeta[$i];
// do not use a column alias in a condition
if ($meta->orgname === '') {
$meta->orgname = $meta->name;
foreach ($expressions as $expression) {
if (empty($expression->alias) || empty($expression->column)) {
continue;
}
if (strcasecmp($meta->name, $expression->alias) == 0) {
$meta->orgname = $expression->column;
break;
}
}
}
// Do not use a table alias in a condition.
// Test case is:
// select * from galerie x WHERE
//(select count(*) from galerie y where y.datum=x.datum)>1
//
// But orgtable is present only with mysqli extension so the
// fix is only for mysqli.
// Also, do not use the original table name if we are dealing with
// a view because this view might be updatable.
// (The isView() verification should not be costly in most cases
// because there is some caching in the function).
if (
$meta->table !== $meta->orgtable
&& ! $dbi->getTable($GLOBALS['db'], $meta->table)->isView()
) {
$meta->table = $meta->orgtable;
}
// If this field is not from the table which the unique clause needs
// to be restricted to.
if ($restrictToTable && $restrictToTable != $meta->table) {
continue;
}
// to fix the bug where float fields (primary or not)
// can't be matched because of the imprecision of
// floating comparison, use CONCAT
// (also, the syntax "CONCAT(field) IS NULL"
// that we need on the next "if" will work)
if ($meta->isType(FieldMetadata::TYPE_REAL)) {
$conKey = 'CONCAT(' . self::backquote($meta->table) . '.'
. self::backquote($meta->orgname) . ')';
} else {
$conKey = self::backquote($meta->table) . '.'
. self::backquote($meta->orgname);
}
$condition = ' ' . $conKey . ' ';
[$conVal, $condition] = self::getConditionValue($row[$i] ?? null, $meta, $fieldsCount, $conKey, $condition);
if ($conVal === null) {
continue;
}
$condition .= $conVal . ' AND';
if ($meta->isPrimaryKey()) {
$primaryKey .= $condition;
$primaryKeyArray[$conKey] = $conVal;
} elseif ($meta->isUniqueKey()) {
$uniqueKey .= $condition;
$uniqueKeyArray[$conKey] = $conVal;
}
$nonPrimaryCondition .= $condition;
$nonPrimaryConditionArray[$conKey] = $conVal;
}
// Correction University of Virginia 19991216:
// prefer primary or unique keys for condition,
// but use conjunction of all values if no primary key
$clauseIsUnique = true;
if ($primaryKey) {
$preferredCondition = $primaryKey;
$conditionArray = $primaryKeyArray;
} elseif ($uniqueKey) {
$preferredCondition = $uniqueKey;
$conditionArray = $uniqueKeyArray;
} elseif (! $forceUnique) {
$preferredCondition = $nonPrimaryCondition;
$conditionArray = $nonPrimaryConditionArray;
$clauseIsUnique = false;
}
$whereClause = trim((string) preg_replace('|\s?AND$|', '', $preferredCondition));
return [
$whereClause,
$clauseIsUnique,
$conditionArray,
];
}
/**
* Generate the charset query part
*
* @param string $collation Collation
* @param bool $override (optional) force 'CHARACTER SET' keyword
*/
public static function getCharsetQueryPart(string $collation, bool $override = false): string
{
[$charset] = explode('_', $collation);
$keyword = ' CHARSET=';
if ($override) {
$keyword = ' CHARACTER SET ';
}
return $keyword . $charset
. ($charset == $collation ? '' : ' COLLATE ' . $collation);
}
/**
* Generate a pagination selector for browsing resultsets
*
* @param string $name The name for the request parameter
* @param int $rows Number of rows in the pagination set
* @param int $pageNow current page number
* @param int $nbTotalPage number of total pages
* @param int $showAll If the number of pages is lower than this
* variable, no pages will be omitted in pagination
* @param int $sliceStart How many rows at the beginning should always
* be shown?
* @param int $sliceEnd How many rows at the end should always be shown?
* @param int $percent Percentage of calculation page offsets to hop to a
* next page
* @param int $range Near the current page, how many pages should
* be considered "nearby" and displayed as well?
* @param string $prompt The prompt to display (sometimes empty)
*/
public static function pageselector(
$name,
$rows,
$pageNow = 1,
$nbTotalPage = 1,
$showAll = 200,
$sliceStart = 5,
$sliceEnd = 5,
$percent = 20,
$range = 10,
$prompt = ''
): string {
$increment = floor($nbTotalPage / $percent);
$pageNowMinusRange = $pageNow - $range;
$pageNowPlusRange = $pageNow + $range;
$gotoPage = $prompt . ' <select class="pageselector ajax"';
$gotoPage .= ' name="' . $name . '" >';
if ($nbTotalPage < $showAll) {
$pages = range(1, $nbTotalPage);
} else {
$pages = [];
// Always show first X pages
for ($i = 1; $i <= $sliceStart; $i++) {
$pages[] = $i;
}
// Always show last X pages
for ($i = $nbTotalPage - $sliceEnd; $i <= $nbTotalPage; $i++) {
$pages[] = $i;
}
// Based on the number of results we add the specified
// $percent percentage to each page number,
// so that we have a representing page number every now and then to
// immediately jump to specific pages.
// As soon as we get near our currently chosen page ($pageNow -
// $range), every page number will be shown.
$i = $sliceStart;
$x = $nbTotalPage - $sliceEnd;
$metBoundary = false;
while ($i <= $x) {
if ($i >= $pageNowMinusRange && $i <= $pageNowPlusRange) {
// If our pageselector comes near the current page, we use 1
// counter increments
$i++;
$metBoundary = true;
} else {
// We add the percentage increment to our current page to
// hop to the next one in range
$i += $increment;
// Make sure that we do not cross our boundaries.
if ($i > $pageNowMinusRange && ! $metBoundary) {
$i = $pageNowMinusRange;
}
}
if ($i <= 0 || $i > $x) {
continue;
}
$pages[] = $i;
}
/*
Add page numbers with "geometrically increasing" distances.
This helps me a lot when navigating through giant tables.
Test case: table with 2.28 million sets, 76190 pages. Page of interest
is between 72376 and 76190.
Selecting page 72376.
Now, old version enumerated only +/- 10 pages around 72376 and the
percentage increment produced steps of about 3000.
The following code adds page numbers +/- 2,4,8,16,32,64,128,256 etc.
around the current page.
*/
$i = $pageNow;
$dist = 1;
while ($i < $x) {
$dist = 2 * $dist;
$i = $pageNow + $dist;
if ($i <= 0 || $i > $x) {
continue;
}
$pages[] = $i;
}
$i = $pageNow;
$dist = 1;
while ($i > 0) {
$dist = 2 * $dist;
$i = $pageNow - $dist;
if ($i <= 0 || $i > $x) {
continue;
}
$pages[] = $i;
}
// Since because of ellipsing of the current page some numbers may be
// double, we unify our array:
sort($pages);
$pages = array_unique($pages);
}
if ($pageNow > $nbTotalPage) {
$pages[] = $pageNow;
}
foreach ($pages as $i) {
if ($i == $pageNow) {
$selected = 'selected="selected" style="font-weight: bold"';
} else {
$selected = '';
}
$gotoPage .= ' <option ' . $selected
. ' value="' . (($i - 1) * $rows) . '">' . $i . '</option>' . "\n";
}
$gotoPage .= ' </select>';
return $gotoPage;
}
/**
* Calculate page number through position
*
* @param int $pos position of first item
* @param int $maxCount number of items per page
*
* @return int $page_num
*/
public static function getPageFromPosition($pos, $maxCount)
{
return (int) floor($pos / $maxCount) + 1;
}
/**
* replaces %u in given path with current user name
*
* example:
* <code>
* $user_dir = userDir('/var/pma_tmp/%u/'); // '/var/pma_tmp/root/'
*
* </code>
*
* @param string $dir with wildcard for user
*
* @return string per user directory
*/
public static function userDir(string $dir): string
{
// add trailing slash
if (mb_substr($dir, -1) !== '/') {
$dir .= '/';
}
return str_replace('%u', Core::securePath($GLOBALS['cfg']['Server']['user']), $dir);
}
/**
* Clears cache content which needs to be refreshed on user change.
*/
public static function clearUserCache(): void
{
SessionCache::remove('is_superuser');
SessionCache::remove('is_createuser');
SessionCache::remove('is_grantuser');
SessionCache::remove('mysql_cur_user');
SessionCache::remove('mysql_cur_role');
}
/**
* Converts a bit value to printable format;
* in MySQL a BIT field can be from 1 to 64 bits so we need this
* function because in PHP, decbin() supports only 32 bits
* on 32-bit servers
*
* @param int $value coming from a BIT field
* @param int $length length
*
* @return string the printable value
*/
public static function printableBitValue(int $value, int $length): string
{
// if running on a 64-bit server or the length is safe for decbin()
if (PHP_INT_SIZE == 8 || $length < 33) {
$printable = decbin($value);
} else {
// FIXME: does not work for the leftmost bit of a 64-bit value
$i = 0;
$printable = '';
while ($value >= 2 ** $i) {
++$i;
}
if ($i != 0) {
--$i;
}
while ($i >= 0) {
if ($value - 2 ** $i < 0) {
$printable = '0' . $printable;
} else {
$printable = '1' . $printable;
$value -= 2 ** $i;
}
--$i;
}
$printable = strrev($printable);
}
$printable = str_pad($printable, $length, '0', STR_PAD_LEFT);
return $printable;
}
/**
* Converts a BIT type default value
* for example, b'010' becomes 010
*
* @param string|null $bitDefaultValue value
*
* @return string the converted value
*/
public static function convertBitDefaultValue(?string $bitDefaultValue): string
{
return (string) preg_replace(
"/^b'(\d*)'?$/",
'$1',
htmlspecialchars_decode((string) $bitDefaultValue, ENT_QUOTES),
1
);
}
/**
* Extracts the various parts from a column spec
*
* @param string $columnSpecification Column specification
*
* @return array associative array containing type, spec_in_brackets
* and possibly enum_set_values (another array)
*/
public static function extractColumnSpec($columnSpecification)
{
$firstBracketPos = mb_strpos($columnSpecification, '(');
if ($firstBracketPos) {
$specInBrackets = rtrim(
mb_substr(
$columnSpecification,
$firstBracketPos + 1,
mb_strrpos($columnSpecification, ')') - $firstBracketPos - 1
)
);
// convert to lowercase just to be sure
$type = mb_strtolower(
rtrim(mb_substr($columnSpecification, 0, $firstBracketPos))
);
} else {
// Split trailing attributes such as unsigned,
// binary, zerofill and get data type name
$typeParts = explode(' ', $columnSpecification);
$type = mb_strtolower($typeParts[0]);
$specInBrackets = '';
}
if ($type === 'enum' || $type === 'set') {
// Define our working vars
$enumSetValues = self::parseEnumSetValues($columnSpecification, false);
$printType = $type
. '(' . str_replace("','", "', '", $specInBrackets) . ')';
$binary = false;
$unsigned = false;
$zerofill = false;
$compressed = false;
} else {
$enumSetValues = [];
/* Create printable type name */
$printType = mb_strtolower($columnSpecification);
// Strip the "BINARY" attribute, except if we find "BINARY(" because
// this would be a BINARY or VARBINARY column type;
// by the way, a BLOB should not show the BINARY attribute
// because this is not accepted in MySQL syntax.
if (str_contains($printType, 'binary') && ! preg_match('@binary[\(]@', $printType)) {
$printType = str_replace('binary', '', $printType);
$binary = true;
} else {
$binary = false;
}
$printType = (string) preg_replace('@zerofill@', '', $printType, -1, $zerofillCount);
$zerofill = ($zerofillCount > 0);
$printType = (string) preg_replace('@unsigned@', '', $printType, -1, $unsignedCount);
$unsigned = ($unsignedCount > 0);
$printType = (string) preg_replace('@\/\*!100301 compressed\*\/@', '', $printType, -1, $compressedCount);
$compressed = ($compressedCount > 0);
$printType = trim($printType);
}
$attribute = ' ';
if ($binary) {
$attribute = 'BINARY';
}
if ($unsigned) {
$attribute = 'UNSIGNED';
}
if ($zerofill) {
$attribute = 'UNSIGNED ZEROFILL';
}
if ($compressed) {
// With InnoDB page compression, multiple compression algorithms are supported.
// In contrast, with InnoDB's COMPRESSED row format, zlib is the only supported compression algorithm.
// This means that the COMPRESSED row format has less compression options than InnoDB page compression does.
// @see https://mariadb.com/kb/en/innodb-page-compression/#comparison-with-the-compressed-row-format
$attribute = 'COMPRESSED=zlib';
}
$canContainCollation = false;
if (! $binary && preg_match('@^(char|varchar|text|tinytext|mediumtext|longtext|set|enum)@', $type)) {
$canContainCollation = true;
}
// for the case ENUM('–','“')
$displayedType = htmlspecialchars($printType, ENT_COMPAT);
if (mb_strlen($printType) > $GLOBALS['cfg']['LimitChars']) {
$displayedType = '<abbr title="' . htmlspecialchars($printType) . '">';
$displayedType .= htmlspecialchars(
mb_substr(
$printType,
0,
(int) $GLOBALS['cfg']['LimitChars']
) . '...',
ENT_COMPAT
);
$displayedType .= '</abbr>';
}
return [
'type' => $type,
'spec_in_brackets' => $specInBrackets,
'enum_set_values' => $enumSetValues,
'print_type' => $printType,
'binary' => $binary,
'unsigned' => $unsigned,
'zerofill' => $zerofill,
'attribute' => $attribute,
'can_contain_collation' => $canContainCollation,
'displayed_type' => $displayedType,
];
}
/**
* If the string starts with a \r\n pair (0x0d0a) add an extra \n
*
* @param string $string string
*
* @return string with the chars replaced
*/
public static function duplicateFirstNewline(string $string): string
{
$firstOccurrence = mb_strpos($string, "\r\n");
if ($firstOccurrence === 0) {
$string = "\n" . $string;
}
return $string;
}
/**
* Get the action word corresponding to a script name
* in order to display it as a title in navigation panel
*
* @param string $target a valid value for $cfg['NavigationTreeDefaultTabTable'],
* $cfg['NavigationTreeDefaultTabTable2'],
* $cfg['DefaultTabTable'] or $cfg['DefaultTabDatabase']
*
* @return string|bool Title for the $cfg value
*/
public static function getTitleForTarget($target)
{
$mapping = [
'structure' => __('Structure'),
'sql' => __('SQL'),
'search' => __('Search'),
'insert' => __('Insert'),
'browse' => __('Browse'),
'operations' => __('Operations'),
];
return $mapping[$target] ?? false;
}
/**
* Get the script name corresponding to a plain English config word
* in order to append in links on navigation and main panel
*
* @param string $target a valid value for
* $cfg['NavigationTreeDefaultTabTable'],
* $cfg['NavigationTreeDefaultTabTable2'],
* $cfg['DefaultTabTable'], $cfg['DefaultTabDatabase'] or
* $cfg['DefaultTabServer']
* @param string $location one out of 'server', 'table', 'database'
*
* @return string script name corresponding to the config word
*/
public static function getScriptNameForOption($target, string $location): string
{
return Url::getFromRoute(self::getUrlForOption($target, $location));
}
/**
* Get the URL corresponding to a plain English config word
* in order to append in links on navigation and main panel
*
* @param string $target a valid value for
* $cfg['NavigationTreeDefaultTabTable'],
* $cfg['NavigationTreeDefaultTabTable2'],
* $cfg['DefaultTabTable'], $cfg['DefaultTabDatabase'] or
* $cfg['DefaultTabServer']
* @param string $location one out of 'server', 'table', 'database'
*
* @return string The URL corresponding to the config word
*/
public static function getUrlForOption($target, string $location): string
{
if ($location === 'server') {
// Values for $cfg['DefaultTabServer']
switch ($target) {
case 'welcome':
case 'index.php':
return '/';
case 'databases':
case 'server_databases.php':
return '/server/databases';
case 'status':
case 'server_status.php':
return '/server/status';
case 'variables':
case 'server_variables.php':
return '/server/variables';
case 'privileges':
case 'server_privileges.php':
return '/server/privileges';
}
} elseif ($location === 'database') {
// Values for $cfg['DefaultTabDatabase']
switch ($target) {
case 'structure':
case 'db_structure.php':
return '/database/structure';
case 'sql':
case 'db_sql.php':
return '/database/sql';
case 'search':
case 'db_search.php':
return '/database/search';
case 'operations':
case 'db_operations.php':
return '/database/operations';
}
} elseif ($location === 'table') {
// Values for $cfg['DefaultTabTable'],
// $cfg['NavigationTreeDefaultTabTable'] and
// $cfg['NavigationTreeDefaultTabTable2']
switch ($target) {
case 'structure':
case 'tbl_structure.php':
return '/table/structure';
case 'sql':
case 'tbl_sql.php':
return '/table/sql';
case 'search':
case 'tbl_select.php':
return '/table/search';
case 'insert':
case 'tbl_change.php':
return '/table/change';
case 'browse':
case 'sql.php':
return '/sql';
}
}
return '/';
}
/**
* Formats user string, expanding @VARIABLES@, accepting strftime format
* string.
*
* @param string $string Text where to do expansion.
* @param array|string $escape Function to call for escaping variable values.
* Can also be an array of:
* - the escape method name
* - the class that contains the method
* - location of the class (for inclusion)
* @param array $updates Array with overrides for default parameters
* (obtained from GLOBALS).
*
* @return string
*/
public static function expandUserString(
$string,
$escape = null,
array $updates = []
) {
global $dbi;
/* Content */
$vars = [];
$vars['http_host'] = Core::getenv('HTTP_HOST');
$vars['server_name'] = $GLOBALS['cfg']['Server']['host'];
$vars['server_verbose'] = $GLOBALS['cfg']['Server']['verbose'];
if (empty($GLOBALS['cfg']['Server']['verbose'])) {
$vars['server_verbose_or_name'] = $GLOBALS['cfg']['Server']['host'];
} else {
$vars['server_verbose_or_name'] = $GLOBALS['cfg']['Server']['verbose'];
}
$vars['database'] = $GLOBALS['db'];
$vars['table'] = $GLOBALS['table'];
$vars['phpmyadmin_version'] = 'phpMyAdmin ' . Version::VERSION;
/* Update forced variables */
foreach ($updates as $key => $val) {
$vars[$key] = $val;
}
/* Replacement mapping */
/*
* The __VAR__ ones are for backward compatibility, because user
* might still have it in cookies.
*/
$replace = [
'@HTTP_HOST@' => $vars['http_host'],
'@SERVER@' => $vars['server_name'],
'__SERVER__' => $vars['server_name'],
'@VERBOSE@' => $vars['server_verbose'],
'@VSERVER@' => $vars['server_verbose_or_name'],
'@DATABASE@' => $vars['database'],
'__DB__' => $vars['database'],
'@TABLE@' => $vars['table'],
'__TABLE__' => $vars['table'],
'@PHPMYADMIN@' => $vars['phpmyadmin_version'],
];
/* Optional escaping */
if ($escape !== null) {
if (is_array($escape)) {
$escapeClass = new $escape[1]();
$escapeMethod = $escape[0];
}
foreach ($replace as $key => $val) {
if (isset($escapeClass, $escapeMethod)) {
$replace[$key] = $escapeClass->$escapeMethod($val);
} elseif ($escape === 'backquote') {
$replace[$key] = self::backquote($val);
} elseif (is_callable($escape)) {
$replace[$key] = $escape($val);
}
}
}
/* Backward compatibility in 3.5.x */
if (str_contains($string, '@FIELDS@')) {
$string = strtr($string, ['@FIELDS@' => '@COLUMNS@']);
}
/* Fetch columns list if required */
if (str_contains($string, '@COLUMNS@')) {
$columnsList = $dbi->getColumns($GLOBALS['db'], $GLOBALS['table']);
// sometimes the table no longer exists at this point
if ($columnsList !== null) {
$columnNames = [];
foreach ($columnsList as $column) {
if ($escape !== null) {
$columnNames[] = self::$escape($column['Field']);
} else {
$columnNames[] = $column['Field'];
}
}
$replace['@COLUMNS@'] = implode(',', $columnNames);
} else {
$replace['@COLUMNS@'] = '*';
}
}
/* Do the replacement */
return strtr((string) @strftime($string), $replace);
}
/**
* This function processes the datatypes supported by the DB,
* as specified in Types->getColumns() and either returns an array
* (useful for quickly checking if a datatype is supported)
* or an HTML snippet that creates a drop-down list.
*
* @param bool $html Whether to generate an html snippet or an array
* @param string $selected The value to mark as selected in HTML mode
*
* @return mixed An HTML snippet or an array of datatypes.
*/
public static function getSupportedDatatypes($html = false, $selected = '')
{
global $dbi;
if ($html) {
$retval = Generator::getSupportedDatatypes($selected);
} else {
$retval = [];
foreach ($dbi->types->getColumns() as $value) {
if (is_array($value)) {
foreach ($value as $subvalue) {
if ($subvalue === '-') {
continue;
}
$retval[] = $subvalue;
}
} else {
if ($value !== '-') {
$retval[] = $value;
}
}
}
}
return $retval;
}
/**
* Returns a list of datatypes that are not (yet) handled by PMA.
* Used by: /table/change and libraries/Routines.php
*
* @return array list of datatypes
*/
public static function unsupportedDatatypes(): array
{
return [];
}
/**
* This function is to check whether database support UUID
*/
public static function isUUIDSupported(): bool
{
return Compatibility::isUUIDSupported($GLOBALS['dbi']);
}
/**
* Checks if the current user has a specific privilege and returns true if the
* user indeed has that privilege or false if they don't. This function must
* only be used for features that are available since MySQL 5, because it
* relies on the INFORMATION_SCHEMA database to be present.
*
* Example: currentUserHasPrivilege('CREATE ROUTINE', 'mydb');
* // Checks if the currently logged in user has the global
* // 'CREATE ROUTINE' privilege or, if not, checks if the
* // user has this privilege on database 'mydb'.
*
* @param string $priv The privilege to check
* @param string|null $db null, to only check global privileges
* string, db name where to also check
* for privileges
* @param string|null $tbl null, to only check global/db privileges
* string, table name where to also check
* for privileges
*/
public static function currentUserHasPrivilege(string $priv, ?string $db = null, ?string $tbl = null): bool
{
global $dbi;
// Get the username for the current user in the format
// required to use in the information schema database.
[$user, $host] = $dbi->getCurrentUserAndHost();
// MySQL is started with --skip-grant-tables
if ($user === '') {
return true;
}
$username = "''";
$username .= str_replace("'", "''", $user);
$username .= "''@''";
$username .= str_replace("'", "''", $host);
$username .= "''";
// Prepare the query
$query = 'SELECT `PRIVILEGE_TYPE` FROM `INFORMATION_SCHEMA`.`%s` '
. "WHERE GRANTEE='%s' AND PRIVILEGE_TYPE='%s'";
// Check global privileges first.
$userPrivileges = $dbi->fetchValue(
sprintf(
$query,
'USER_PRIVILEGES',
$username,
$priv
)
);
if ($userPrivileges) {
return true;
}
// If a database name was provided and user does not have the
// required global privilege, try database-wise permissions.
if ($db === null) {
// There was no database name provided and the user
// does not have the correct global privilege.
return false;
}
$query .= " AND '%s' LIKE `TABLE_SCHEMA`";
$schemaPrivileges = $dbi->fetchValue(
sprintf(
$query,
'SCHEMA_PRIVILEGES',
$username,
$priv,
$dbi->escapeString($db)
)
);
if ($schemaPrivileges) {
return true;
}
// If a table name was also provided and we still didn't
// find any valid privileges, try table-wise privileges.
if ($tbl !== null) {
$query .= " AND TABLE_NAME='%s'";
$tablePrivileges = $dbi->fetchValue(
sprintf(
$query,
'TABLE_PRIVILEGES',
$username,
$priv,
$dbi->escapeString($db),
$dbi->escapeString($tbl)
)
);
if ($tablePrivileges) {
return true;
}
}
/**
* If we reached this point, the user does not
* have even valid table-wise privileges.
*/
return false;
}
/**
* Returns server type for current connection
*
* Known types are: MariaDB, Percona Server and MySQL (default)
*
* @phpstan-return 'MariaDB'|'Percona Server'|'MySQL'
*/
public static function getServerType(): string
{
global $dbi;
if ($dbi->isMariaDB()) {
return 'MariaDB';
}
if ($dbi->isPercona()) {
return 'Percona Server';
}
return 'MySQL';
}
/**
* Parses ENUM/SET values
*
* @param string $definition The definition of the column
* for which to parse the values
* @param bool $escapeHtml Whether to escape html entities
*
* @return array
*/
public static function parseEnumSetValues($definition, $escapeHtml = true)
{
// There is a JS port of the below parser in functions.js
// If you are fixing something here,
// you need to also update the JS port.
// This should really be delegated to MySQL but since we also want to HTML encode it,
// it is easier this way.
// It future replace str_getcsv with $dbi->fetchSingleRow('SELECT '.$expressionInBrackets[1]);
preg_match('/\((.*)\)/', $definition, $expressionInBrackets);
$matches = str_getcsv($expressionInBrackets[1], ',', "'", '\\');
$values = [];
foreach ($matches as $value) {
$value = strtr($value, ['\\\\' => '\\']); // str_getcsv doesn't unescape backslashes so we do it ourselves
$values[] = $escapeHtml ? htmlspecialchars($value, ENT_QUOTES, 'UTF-8') : $value;
}
return $values;
}
/**
* Return the list of tabs for the menu with corresponding names
*
* @param string $level 'server', 'db' or 'table' level
*
* @return array|null list of tabs for the menu
*/
public static function getMenuTabList($level = null)
{
$tabList = [
'server' => [
'databases' => __('Databases'),
'sql' => __('SQL'),
'status' => __('Status'),
'rights' => __('Users'),
'export' => __('Export'),
'import' => __('Import'),
'settings' => __('Settings'),
'binlog' => __('Binary log'),
'replication' => __('Replication'),
'vars' => __('Variables'),
'charset' => __('Charsets'),
'plugins' => __('Plugins'),
'engine' => __('Engines'),
],
'db' => [
'structure' => __('Structure'),
'sql' => __('SQL'),
'search' => __('Search'),
'query' => __('Query'),
'export' => __('Export'),
'import' => __('Import'),
'operation' => __('Operations'),
'privileges' => __('Privileges'),
'routines' => __('Routines'),
'events' => __('Events'),
'triggers' => __('Triggers'),
'tracking' => __('Tracking'),
'designer' => __('Designer'),
'central_columns' => __('Central columns'),
],
'table' => [
'browse' => __('Browse'),
'structure' => __('Structure'),
'sql' => __('SQL'),
'search' => __('Search'),
'insert' => __('Insert'),
'export' => __('Export'),
'import' => __('Import'),
'privileges' => __('Privileges'),
'operation' => __('Operations'),
'tracking' => __('Tracking'),
'triggers' => __('Triggers'),
],
];
if ($level == null) {
return $tabList;
}
if (array_key_exists($level, $tabList)) {
return $tabList[$level];
}
return null;
}
/**
* Add fractional seconds to time, datetime and timestamp strings.
* If the string contains fractional seconds,
* pads it with 0s up to 6 decimal places.
*
* @param string $value time, datetime or timestamp strings
*
* @return string time, datetime or timestamp strings with fractional seconds
*/
public static function addMicroseconds($value)
{
if ($value === '' || preg_match('/^current_timestamp(\([0-6]?\))?$/i', $value)) {
return $value;
}
if (! str_contains($value, '.')) {
return $value . '.000000';
}
$value .= '000000';
return mb_substr(
$value,
0,
mb_strpos($value, '.') + 7
);
}
/**
* Reads the file, detects the compression MIME type, closes the file
* and returns the MIME type
*
* @param resource $file the file handle
*
* @return string the MIME type for compression, or 'none'
*/
public static function getCompressionMimeType($file)
{
$test = fread($file, 4);
if ($test === false) {
fclose($file);
return 'none';
}
$len = strlen($test);
fclose($file);
if ($len >= 2 && $test[0] == chr(31) && $test[1] == chr(139)) {
return 'application/gzip';
}
if ($len >= 3 && substr($test, 0, 3) === 'BZh') {
return 'application/bzip2';
}
if ($len >= 4 && $test == "PK\003\004") {
return 'application/zip';
}
return 'none';
}
/**
* Provide COLLATE clause, if required, to perform case sensitive comparisons
* for queries on information_schema.
*
* @return string COLLATE clause if needed or empty string.
*/
public static function getCollateForIS()
{
global $dbi;
$names = $dbi->getLowerCaseNames();
if ($names === '0') {
return 'COLLATE utf8_bin';
}
if ($names === '2') {
return 'COLLATE utf8_general_ci';
}
return '';
}
/**
* Process the index data.
*
* @param array $indexes index data
*
* @return array processes index data
*/
public static function processIndexData(array $indexes)
{
$lastIndex = '';
$primary = '';
$pkArray = []; // will be use to emphasis prim. keys in the table
$indexesInfo = [];
$indexesData = [];
// view
foreach ($indexes as $row) {
// Backups the list of primary keys
if ($row['Key_name'] === 'PRIMARY') {
$primary .= $row['Column_name'] . ', ';
$pkArray[$row['Column_name']] = 1;
}
// Retains keys informations
if ($row['Key_name'] != $lastIndex) {
$indexes[] = $row['Key_name'];
$lastIndex = $row['Key_name'];
}
$indexesInfo[$row['Key_name']]['Sequences'][] = $row['Seq_in_index'];
$indexesInfo[$row['Key_name']]['Non_unique'] = $row['Non_unique'];
if (isset($row['Cardinality'])) {
$indexesInfo[$row['Key_name']]['Cardinality'] = $row['Cardinality'];
}
// I don't know what does following column mean....
// $indexes_info[$row['Key_name']]['Packed'] = $row['Packed'];
$indexesInfo[$row['Key_name']]['Comment'] = $row['Comment'];
$indexesData[$row['Key_name']][$row['Seq_in_index']]['Column_name'] = $row['Column_name'];
if (! isset($row['Sub_part'])) {
continue;
}
$indexesData[$row['Key_name']][$row['Seq_in_index']]['Sub_part'] = $row['Sub_part'];
}
return [
$primary,
$pkArray,
$indexesInfo,
$indexesData,
];
}
/**
* Gets the list of tables in the current db and information about these
* tables if possible
*
* @param string $db database name
* @param string $subPart part of script name
*
* @return array
*/
public static function getDbInfo($db, string $subPart)
{
global $cfg, $dbi;
/**
* limits for table list
*/
if (! isset($_SESSION['tmpval']['table_limit_offset']) || $_SESSION['tmpval']['table_limit_offset_db'] != $db) {
$_SESSION['tmpval']['table_limit_offset'] = 0;
$_SESSION['tmpval']['table_limit_offset_db'] = $db;
}
if (isset($_REQUEST['pos'])) {
$_SESSION['tmpval']['table_limit_offset'] = (int) $_REQUEST['pos'];
}
$pos = $_SESSION['tmpval']['table_limit_offset'];
/**
* whether to display extended stats
*/
$isShowStats = $cfg['ShowStats'];
/**
* whether selected db is information_schema
*/
$isSystemSchema = false;
if (Utilities::isSystemSchema($db)) {
$isShowStats = false;
$isSystemSchema = true;
}
/**
* information about tables in db
*/
$tables = [];
$tooltipTrueName = [];
$tooltipAliasName = [];
// Special speedup for newer MySQL Versions (in 4.0 format changed)
if ($cfg['SkipLockedTables'] === true) {
$dbInfoResult = $dbi->query(
'SHOW OPEN TABLES FROM ' . self::backquote($db) . ' WHERE In_use > 0;'
);
// Blending out tables in use
if ($dbInfoResult->numRows() > 0) {
$tables = self::getTablesWhenOpen($db, $dbInfoResult);
}
}
if (empty($tables)) {
// Set some sorting defaults
$sort = 'Name';
$sortOrder = 'ASC';
if (isset($_REQUEST['sort'])) {
$sortableNameMappings = [
'table' => 'Name',
'records' => 'Rows',
'type' => 'Engine',
'collation' => 'Collation',
'size' => 'Data_length',
'overhead' => 'Data_free',
'creation' => 'Create_time',
'last_update' => 'Update_time',
'last_check' => 'Check_time',
'comment' => 'Comment',
];
// Make sure the sort type is implemented
if (isset($sortableNameMappings[$_REQUEST['sort']])) {
$sort = $sortableNameMappings[$_REQUEST['sort']];
if ($_REQUEST['sort_order'] === 'DESC') {
$sortOrder = 'DESC';
}
}
}
$groupWithSeparator = false;
$tableType = null;
$limitOffset = 0;
$limitCount = false;
$groupTable = [];
if (! empty($_REQUEST['tbl_group']) || ! empty($_REQUEST['tbl_type'])) {
if (! empty($_REQUEST['tbl_type'])) {
// only tables for selected type
$tableType = $_REQUEST['tbl_type'];
}
if (! empty($_REQUEST['tbl_group'])) {
// only tables for selected group
$tableGroup = $_REQUEST['tbl_group'];
// include the table with the exact name of the group if such
// exists
$groupTable = $dbi->getTablesFull(
$db,
$tableGroup,
false,
$limitOffset,
$limitCount,
$sort,
$sortOrder,
$tableType
);
$groupWithSeparator = $tableGroup
. $GLOBALS['cfg']['NavigationTreeTableSeparator'];
}
} else {
// all tables in db
// - get the total number of tables
// (needed for proper working of the MaxTableList feature)
$tables = $dbi->getTables($db);
$totalNumTables = count($tables);
if ($subPart !== '_export') {
// fetch the details for a possible limited subset
$limitOffset = $pos;
$limitCount = true;
}
}
$tables = $groupTable + $dbi->getTablesFull(
$db,
$groupWithSeparator !== false ? $groupWithSeparator : $tables,
$groupWithSeparator !== false,
$limitOffset,
$limitCount,
$sort,
$sortOrder,
$tableType
);
}
$numTables = count($tables);
// (needed for proper working of the MaxTableList feature)
if (! isset($totalNumTables)) {
$totalNumTables = $numTables;
}
/**
* If coming from a Show MySQL link on the home page,
* put something in $sub_part
*/
if ($subPart === '') {
$subPart = '_structure';
}
return [
$tables,
$numTables,
$totalNumTables,
$subPart,
$isShowStats,
$isSystemSchema,
$tooltipTrueName,
$tooltipAliasName,
$pos,
];
}
/**
* Gets the list of tables in the current db, taking into account
* that they might be "in use"
*
* @param string $db database name
* @param ResultInterface $dbInfoResult result set
*
* @return array list of tables
*/
public static function getTablesWhenOpen($db, ResultInterface $dbInfoResult): array
{
global $dbi;
$sotCache = [];
$tables = [];
foreach ($dbInfoResult as $tmp) {
$sotCache[$tmp['Table']] = true;
}
// is there at least one "in use" table?
if (count($sotCache) > 0) {
$tblGroupSql = '';
$whereAdded = false;
if (
isset($_REQUEST['tbl_group'])
&& is_scalar($_REQUEST['tbl_group'])
&& strlen((string) $_REQUEST['tbl_group']) > 0
) {
$group = $dbi->escapeMysqlLikeString((string) $_REQUEST['tbl_group']);
$groupWithSeparator = $dbi->escapeMysqlLikeString(
$_REQUEST['tbl_group']
. $GLOBALS['cfg']['NavigationTreeTableSeparator']
);
$tblGroupSql .= ' WHERE ('
. self::backquote('Tables_in_' . $db)
. " LIKE '" . $groupWithSeparator . "%'"
. ' OR '
. self::backquote('Tables_in_' . $db)
. " LIKE '" . $group . "')";
$whereAdded = true;
}
if (isset($_REQUEST['tbl_type']) && in_array($_REQUEST['tbl_type'], ['table', 'view'])) {
$tblGroupSql .= $whereAdded ? ' AND' : ' WHERE';
if ($_REQUEST['tbl_type'] === 'view') {
$tblGroupSql .= " `Table_type` NOT IN ('BASE TABLE', 'SYSTEM VERSIONED')";
} else {
$tblGroupSql .= " `Table_type` IN ('BASE TABLE', 'SYSTEM VERSIONED')";
}
}
$dbInfoResult = $dbi->query('SHOW FULL TABLES FROM ' . self::backquote($db) . $tblGroupSql);
unset($tblGroupSql, $whereAdded);
if ($dbInfoResult->numRows() > 0) {
$names = [];
while ($tmp = $dbInfoResult->fetchRow()) {
if (! isset($sotCache[$tmp[0]])) {
$names[] = $tmp[0];
} else { // table in use
$tables[$tmp[0]] = [
'TABLE_NAME' => $tmp[0],
'ENGINE' => '',
'TABLE_TYPE' => '',
'TABLE_ROWS' => 0,
'TABLE_COMMENT' => '',
];
}
}
if (count($names) > 0) {
$tables += $dbi->getTablesFull($db, $names);
}
if ($GLOBALS['cfg']['NaturalOrder']) {
uksort($tables, 'strnatcasecmp');
}
}
unset($sotCache);
}
return $tables;
}
/**
* Checks whether database extension is loaded
*
* @param string $extension mysql extension to check
*/
public static function checkDbExtension(string $extension = 'mysqli'): bool
{
return function_exists($extension . '_connect');
}
/**
* Returns list of used PHP extensions.
*
* @return string[]
*/
public static function listPHPExtensions(): array
{
$result = [];
if (self::checkDbExtension('mysqli')) {
$result[] = 'mysqli';
}
if (extension_loaded('curl')) {
$result[] = 'curl';
}
if (extension_loaded('mbstring')) {
$result[] = 'mbstring';
}
if (extension_loaded('sodium')) {
$result[] = 'sodium';
}
return $result;
}
/**
* Converts given (request) parameter to string
*
* @param mixed $value Value to convert
*/
public static function requestString($value): string
{
while (is_array($value) || is_object($value)) {
if (is_object($value)) {
$value = (array) $value;
}
$value = reset($value);
}
return trim((string) $value);
}
/**
* Generates random string consisting of ASCII chars
*
* @param int $length Length of string
* @param bool $asHex (optional) Send the result as hex
*/
public static function generateRandom(int $length, bool $asHex = false): string
{
$result = '';
while (strlen($result) < $length) {
// Get random byte and strip highest bit
// to get ASCII only range
$byte = ord(random_bytes(1)) & 0x7f;
// We want only ASCII chars and no DEL character (127)
if ($byte <= 32 || $byte === 127) {
continue;
}
$result .= chr($byte);
}
return $asHex ? bin2hex($result) : $result;
}
/**
* Wrapper around PHP date function
*
* @param string $format Date format string
*
* @return string
*/
public static function date($format)
{
return date($format);
}
/**
* Wrapper around php's set_time_limit
*/
public static function setTimeLimit(): void
{
// The function can be disabled in php.ini
if (! function_exists('set_time_limit')) {
return;
}
@set_time_limit((int) $GLOBALS['cfg']['ExecTimeLimit']);
}
/**
* Access to a multidimensional array by dot notation
*
* @param array $array List of values
* @param string|array $path Path to searched value
* @param mixed $default Default value
*
* @return mixed Searched value
*/
public static function getValueByKey(array $array, $path, $default = null)
{
if (is_string($path)) {
$path = explode('.', $path);
}
$p = array_shift($path);
while (isset($p)) {
if (! isset($array[$p])) {
return $default;
}
$array = $array[$p];
$p = array_shift($path);
}
return $array;
}
/**
* Creates a clickable column header for table information
*
* @param string $title Title to use for the link
* @param string $sort Corresponds to sortable data name mapped
* in Util::getDbInfo
* @param string $initialSortOrder Initial sort order
*
* @return string Link to be displayed in the table header
*/
public static function sortableTableHeader($title, $sort, $initialSortOrder = 'ASC')
{
$requestedSort = 'table';
$requestedSortOrder = $futureSortOrder = $initialSortOrder;
// If the user requested a sort
if (isset($_REQUEST['sort'])) {
$requestedSort = $_REQUEST['sort'];
if (isset($_REQUEST['sort_order'])) {
$requestedSortOrder = $_REQUEST['sort_order'];
}
}
$orderImg = '';
$orderLinkParams = [];
$orderLinkParams['title'] = __('Sort');
// If this column was requested to be sorted.
if ($requestedSort == $sort) {
if ($requestedSortOrder === 'ASC') {
$futureSortOrder = 'DESC';
// current sort order is ASC
$orderImg = ' ' . Generator::getImage(
's_asc',
__('Ascending'),
[
'class' => 'sort_arrow',
'title' => '',
]
);
$orderImg .= ' ' . Generator::getImage(
's_desc',
__('Descending'),
[
'class' => 'sort_arrow hide',
'title' => '',
]
);
// but on mouse over, show the reverse order (DESC)
$orderLinkParams['onmouseover'] = "$('.sort_arrow').toggle();";
// on mouse out, show current sort order (ASC)
$orderLinkParams['onmouseout'] = "$('.sort_arrow').toggle();";
} else {
$futureSortOrder = 'ASC';
// current sort order is DESC
$orderImg = ' ' . Generator::getImage(
's_asc',
__('Ascending'),
[
'class' => 'sort_arrow hide',
'title' => '',
]
);
$orderImg .= ' ' . Generator::getImage(
's_desc',
__('Descending'),
[
'class' => 'sort_arrow',
'title' => '',
]
);
// but on mouse over, show the reverse order (ASC)
$orderLinkParams['onmouseover'] = "$('.sort_arrow').toggle();";
// on mouse out, show current sort order (DESC)
$orderLinkParams['onmouseout'] = "$('.sort_arrow').toggle();";
}
}
$urlParams = [
'db' => $_REQUEST['db'],
'pos' => 0, // We set the position back to 0 every time they sort.
'sort' => $sort,
'sort_order' => $futureSortOrder,
];
if (isset($_REQUEST['tbl_type']) && in_array($_REQUEST['tbl_type'], ['view', 'table'])) {
$urlParams['tbl_type'] = $_REQUEST['tbl_type'];
}
if (! empty($_REQUEST['tbl_group'])) {
$urlParams['tbl_group'] = $_REQUEST['tbl_group'];
}
$url = Url::getFromRoute('/database/structure', $urlParams, false);
return Generator::linkOrButton($url, null, $title . $orderImg, $orderLinkParams);
}
/**
* Check that input is an int or an int in a string
*
* @param mixed $input input to check
*/
public static function isInteger($input): bool
{
return ctype_digit((string) $input);
}
/**
* Get the protocol from the RFC 7239 Forwarded header
*
* @param string $headerContents The Forwarded header contents
*
* @return string the protocol http/https
*/
public static function getProtoFromForwardedHeader(string $headerContents): string
{
if (str_contains($headerContents, '=')) {// does not contain any equal sign
$hops = explode(',', $headerContents);
$parts = explode(';', $hops[0]);
foreach ($parts as $part) {
$keyValueArray = explode('=', $part, 2);
if (count($keyValueArray) !== 2) {
continue;
}
[
$keyName,
$value,
] = $keyValueArray;
$value = trim(strtolower($value));
if (strtolower(trim($keyName)) === 'proto' && in_array($value, ['http', 'https'])) {
return $value;
}
}
}
return '';
}
/**
* Check if error reporting is available
*/
public static function isErrorReportingAvailable(): bool
{
// issue #16256 - PHP 7.x does not return false for a core function
if (PHP_MAJOR_VERSION < 8) {
$disabled = ini_get('disable_functions');
if (is_string($disabled)) {
$disabled = explode(',', $disabled);
$disabled = array_map(static function (string $part) {
return trim($part);
}, $disabled);
return ! in_array('error_reporting', $disabled);
}
}
return function_exists('error_reporting');
}
}
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