phpmyadmin working

1 files changed, 210 insertions, 0 deletions

diff --git a/srcs/phpmyadmin/libraries/classes/Charsets.php b/srcs/phpmyadmin/libraries/classes/Charsets.php
new file mode 100644
index 0000000..740ab09
--- /dev/null
+++ b/srcs/phpmyadmin/libraries/classes/Charsets.php
@@ -0,0 +1,210 @@
+<?php
+/* vim: set expandtab sw=4 ts=4 sts=4: */
+/**
+ * MySQL charset metadata and manipulations
+ *
+ * @package PhpMyAdmin
+ */
+declare(strict_types=1);
+
+namespace PhpMyAdmin;
+
+use PhpMyAdmin\Charsets\Charset;
+use PhpMyAdmin\Charsets\Collation;
+
+/**
+ * Class used to manage MySQL charsets
+ *
+ * @package PhpMyAdmin
+ */
+class Charsets
+{
+    /**
+     * MySQL charsets map
+     *
+     * @var array
+     */
+    public static $mysqlCharsetMap = [
+        'big5'         => 'big5',
+        'cp-866'       => 'cp866',
+        'euc-jp'       => 'ujis',
+        'euc-kr'       => 'euckr',
+        'gb2312'       => 'gb2312',
+        'gbk'          => 'gbk',
+        'iso-8859-1'   => 'latin1',
+        'iso-8859-2'   => 'latin2',
+        'iso-8859-7'   => 'greek',
+        'iso-8859-8'   => 'hebrew',
+        'iso-8859-8-i' => 'hebrew',
+        'iso-8859-9'   => 'latin5',
+        'iso-8859-13'  => 'latin7',
+        'iso-8859-15'  => 'latin1',
+        'koi8-r'       => 'koi8r',
+        'shift_jis'    => 'sjis',
+        'tis-620'      => 'tis620',
+        'utf-8'        => 'utf8',
+        'windows-1250' => 'cp1250',
+        'windows-1251' => 'cp1251',
+        'windows-1252' => 'latin1',
+        'windows-1256' => 'cp1256',
+        'windows-1257' => 'cp1257',
+    ];
+
+    /**
+     * The charset for the server
+     * @var Charset|null
+     */
+    private static $serverCharset = null;
+
+    /**
+     * @var array<string, Charset>
+     */
+    private static $charsets = [];
+
+    /**
+     * @var array<string, array<string, Collation>>
+     */
+    private static $collations = [];
+
+    /**
+     * Loads charset data from the server
+     *
+     * @param DatabaseInterface $dbi       DatabaseInterface instance
+     * @param boolean           $disableIs Disable use of INFORMATION_SCHEMA
+     *
+     * @return void
+     */
+    private static function loadCharsets(DatabaseInterface $dbi, bool $disableIs): void
+    {
+        /* Data already loaded */
+        if (count(self::$charsets) > 0) {
+            return;
+        }
+
+        if ($disableIs) {
+            $sql = 'SHOW CHARACTER SET';
+        } else {
+            $sql = 'SELECT `CHARACTER_SET_NAME` AS `Charset`,'
+                . ' `DEFAULT_COLLATE_NAME` AS `Default collation`,'
+                . ' `DESCRIPTION` AS `Description`,'
+                . ' `MAXLEN` AS `Maxlen`'
+                . ' FROM `information_schema`.`CHARACTER_SETS`';
+        }
+        $res = $dbi->query($sql);
+
+        self::$charsets = [];
+        while ($row = $dbi->fetchAssoc($res)) {
+            self::$charsets[$row['Charset']] = Charset::fromServer($row);
+        }
+        $dbi->freeResult($res);
+
+        ksort(self::$charsets, SORT_STRING);
+    }
+
+    /**
+     * Loads collation data from the server
+     *
+     * @param DatabaseInterface $dbi       DatabaseInterface instance
+     * @param boolean           $disableIs Disable use of INFORMATION_SCHEMA
+     *
+     * @return void
+     */
+    private static function loadCollations(DatabaseInterface $dbi, bool $disableIs): void
+    {
+        /* Data already loaded */
+        if (count(self::$collations) > 0) {
+            return;
+        }
+
+        if ($disableIs) {
+            $sql = 'SHOW COLLATION';
+        } else {
+            $sql = 'SELECT `COLLATION_NAME` AS `Collation`,'
+                . ' `CHARACTER_SET_NAME` AS `Charset`,'
+                . ' `ID` AS `Id`,'
+                . ' `IS_DEFAULT` AS `Default`,'
+                . ' `IS_COMPILED` AS `Compiled`,'
+                . ' `SORTLEN` AS `Sortlen`'
+                . ' FROM `information_schema`.`COLLATIONS`';
+        }
+        $res = $dbi->query($sql);
+
+        self::$collations = [];
+        while ($row = $dbi->fetchAssoc($res)) {
+            self::$collations[$row['Charset']][$row['Collation']] = Collation::fromServer($row);
+        }
+        $dbi->freeResult($res);
+
+        foreach (array_keys(self::$collations) as $charset) {
+            ksort(self::$collations[$charset], SORT_STRING);
+        }
+    }
+
+     /**
+      * Get current server charset
+      *
+      * @param DatabaseInterface $dbi       DatabaseInterface instance
+      * @param boolean           $disableIs Disable use of INFORMATION_SCHEMA
+      *
+      * @return Charset
+      */
+    public static function getServerCharset(DatabaseInterface $dbi, bool $disableIs): Charset
+    {
+        if (self::$serverCharset !== null) {
+            return self::$serverCharset;
+        }
+        self::loadCharsets($dbi, $disableIs);
+        $serverCharset = $dbi->getVariable('character_set_server');
+        if (! is_string($serverCharset)) {// MySQL 5.7.8 fallback, issue #15614
+            $serverCharset = $dbi->fetchValue("SELECT @@character_set_server;");
+        }
+        self::$serverCharset = self::$charsets[$serverCharset];
+        return self::$serverCharset;
+    }
+
+    /**
+     * Get all server charsets
+     *
+     * @param DatabaseInterface $dbi       DatabaseInterface instance
+     * @param boolean           $disableIs Disable use of INFORMATION_SCHEMA
+     *
+     * @return array
+     */
+    public static function getCharsets(DatabaseInterface $dbi, bool $disableIs): array
+    {
+        self::loadCharsets($dbi, $disableIs);
+        return self::$charsets;
+    }
+
+    /**
+     * Get all server collations
+     *
+     * @param DatabaseInterface $dbi       DatabaseInterface instance
+     * @param boolean           $disableIs Disable use of INFORMATION_SCHEMA
+     *
+     * @return array
+     */
+    public static function getCollations(DatabaseInterface $dbi, bool $disableIs): array
+    {
+        self::loadCollations($dbi, $disableIs);
+        return self::$collations;
+    }
+
+    /**
+     * @param DatabaseInterface $dbi       DatabaseInterface instance
+     * @param bool              $disableIs Disable use of INFORMATION_SCHEMA
+     * @param string|null       $name      Collation name
+     *
+     * @return Collation|null
+     */
+    public static function findCollationByName(DatabaseInterface $dbi, bool $disableIs, ?string $name): ?Collation
+    {
+        $pieces = explode('_', (string) $name);
+        if ($pieces === false || ! isset($pieces[0])) {
+            return null;
+        }
+        $charset = $pieces[0];
+        $collations = self::getCollations($dbi, $disableIs);
+        return $collations[$charset][$name] ?? null;
+    }
+}