phpmyadmin working

1 files changed, 358 insertions, 0 deletions

diff --git a/srcs/phpmyadmin/libraries/classes/Encoding.php b/srcs/phpmyadmin/libraries/classes/Encoding.php
new file mode 100644
index 0000000..32715f3
--- /dev/null
+++ b/srcs/phpmyadmin/libraries/classes/Encoding.php
@@ -0,0 +1,358 @@
+<?php
+/* vim: set expandtab sw=4 ts=4 sts=4: */
+/**
+ * Hold the PhpMyAdmin\Encoding class
+ *
+ * @package PhpMyAdmin
+ */
+declare(strict_types=1);
+
+namespace PhpMyAdmin;
+
+use PhpMyAdmin\Config\ConfigFile;
+use PhpMyAdmin\Core;
+use PhpMyAdmin\Template;
+
+/**
+ * Encoding conversion helper class
+ *
+ * @package PhpMyAdmin
+ */
+class Encoding
+{
+    /**
+     * None encoding conversion engine
+     *
+     * @var int
+     */
+    public const ENGINE_NONE = 0;
+
+    /**
+     * iconv encoding conversion engine
+     *
+     * @var int
+     */
+    public const ENGINE_ICONV = 1;
+
+    /**
+     * recode encoding conversion engine
+     *
+     * @var int
+     */
+    public const ENGINE_RECODE = 2;
+
+    /**
+     * mbstring encoding conversion engine
+     *
+     * @var int
+     */
+    public const ENGINE_MB = 3;
+
+    /**
+     * Chosen encoding engine
+     *
+     * @var int
+     */
+    private static $_engine = null;
+
+    /**
+     * Map of conversion engine configurations
+     *
+     * Each entry contains:
+     *
+     * - function to detect
+     * - engine contant
+     * - extension name to warn when missing
+     *
+     * @var array
+     */
+    private static $_enginemap = [
+        'iconv' => [
+            'iconv',
+            self::ENGINE_ICONV,
+            'iconv',
+        ],
+        'recode' => [
+            'recode_string',
+            self::ENGINE_RECODE,
+            'recode',
+        ],
+        'mb' => [
+            'mb_convert_encoding',
+            self::ENGINE_MB,
+            'mbstring',
+        ],
+        'none' => [
+            'isset',
+            self::ENGINE_NONE,
+            '',
+        ],
+    ];
+
+    /**
+     * Order of automatic detection of engines
+     *
+     * @var array
+     */
+    private static $_engineorder = [
+        'iconv',
+        'mb',
+        'recode',
+    ];
+
+    /**
+     * Kanji encodings list
+     *
+     * @var string
+     */
+    private static $_kanji_encodings = 'ASCII,SJIS,EUC-JP,JIS';
+
+    /**
+     * Initializes encoding engine detecting available backends.
+     *
+     * @return void
+     */
+    public static function initEngine(): void
+    {
+        $engine = 'auto';
+        if (isset($GLOBALS['cfg']['RecodingEngine'])) {
+            $engine = $GLOBALS['cfg']['RecodingEngine'];
+        }
+
+        /* Use user configuration */
+        if (isset(self::$_enginemap[$engine])) {
+            if (function_exists(self::$_enginemap[$engine][0])) {
+                self::$_engine = self::$_enginemap[$engine][1];
+                return;
+            } else {
+                Core::warnMissingExtension(self::$_enginemap[$engine][2]);
+            }
+        }
+
+        /* Autodetection */
+        foreach (self::$_engineorder as $engine) {
+            if (function_exists(self::$_enginemap[$engine][0])) {
+                self::$_engine = self::$_enginemap[$engine][1];
+                return;
+            }
+        }
+
+        /* Fallback to none conversion */
+        self::$_engine = self::ENGINE_NONE;
+    }
+
+    /**
+     * Setter for engine. Use with caution, mostly useful for testing.
+     *
+     * @param int $engine Engine encoding
+     *
+     * @return void
+     */
+    public static function setEngine(int $engine): void
+    {
+        self::$_engine = $engine;
+    }
+
+    /**
+     * Checks whether there is any charset conversion supported
+     *
+     * @return bool
+     */
+    public static function isSupported(): bool
+    {
+        if (self::$_engine === null) {
+            self::initEngine();
+        }
+        return self::$_engine != self::ENGINE_NONE;
+    }
+
+    /**
+     * Converts encoding of text according to parameters with detected
+     * conversion function.
+     *
+     * @param string $src_charset  source charset
+     * @param string $dest_charset target charset
+     * @param string $what         what to convert
+     *
+     * @return string   converted text
+     *
+     * @access  public
+     */
+    public static function convertString(
+        string $src_charset,
+        string $dest_charset,
+        string $what
+    ): string {
+        if ($src_charset == $dest_charset) {
+            return $what;
+        }
+        if (self::$_engine === null) {
+            self::initEngine();
+        }
+        switch (self::$_engine) {
+            case self::ENGINE_RECODE:
+                return recode_string(
+                    $src_charset . '..' . $dest_charset,
+                    $what
+                );
+            case self::ENGINE_ICONV:
+                return iconv(
+                    $src_charset,
+                    $dest_charset .
+                    (isset($GLOBALS['cfg']['IconvExtraParams']) ? $GLOBALS['cfg']['IconvExtraParams'] : ''),
+                    $what
+                );
+            case self::ENGINE_MB:
+                return mb_convert_encoding(
+                    $what,
+                    $dest_charset,
+                    $src_charset
+                );
+            default:
+                return $what;
+        }
+    }
+
+    /**
+     * Detects whether Kanji encoding is available
+     *
+     * @return bool
+     */
+    public static function canConvertKanji(): bool
+    {
+        return $GLOBALS['lang'] == 'ja';
+    }
+
+    /**
+     * Setter for Kanji encodings. Use with caution, mostly useful for testing.
+     *
+     * @return string
+     */
+    public static function getKanjiEncodings(): string
+    {
+        return self::$_kanji_encodings;
+    }
+
+    /**
+     * Setter for Kanji encodings. Use with caution, mostly useful for testing.
+     *
+     * @param string $value Kanji encodings list
+     *
+     * @return void
+     */
+    public static function setKanjiEncodings(string $value): void
+    {
+        self::$_kanji_encodings = $value;
+    }
+
+    /**
+     * Reverses SJIS & EUC-JP position in the encoding codes list
+     *
+     * @return void
+     */
+    public static function kanjiChangeOrder(): void
+    {
+        $parts = explode(',', self::$_kanji_encodings);
+        if ($parts[1] == 'EUC-JP') {
+            self::$_kanji_encodings = 'ASCII,SJIS,EUC-JP,JIS';
+        } else {
+            self::$_kanji_encodings = 'ASCII,EUC-JP,SJIS,JIS';
+        }
+    }
+
+    /**
+     * Kanji string encoding convert
+     *
+     * @param string $str  the string to convert
+     * @param string $enc  the destination encoding code
+     * @param string $kana set 'kana' convert to JIS-X208-kana
+     *
+     * @return string   the converted string
+     */
+    public static function kanjiStrConv(string $str, string $enc, string $kana): string
+    {
+        if ($enc == '' && $kana == '') {
+            return $str;
+        }
+
+        $string_encoding = mb_detect_encoding($str, self::$_kanji_encodings);
+        if ($string_encoding === false) {
+            $string_encoding = 'utf-8';
+        }
+
+        if ($kana == 'kana') {
+            $dist = mb_convert_kana($str, 'KV', $string_encoding);
+            $str  = $dist;
+        }
+        if ($string_encoding != $enc && $enc != '') {
+            $dist = mb_convert_encoding($str, $enc, $string_encoding);
+        } else {
+            $dist = $str;
+        }
+        return $dist;
+    }
+
+
+    /**
+     * Kanji file encoding convert
+     *
+     * @param string $file the name of the file to convert
+     * @param string $enc  the destination encoding code
+     * @param string $kana set 'kana' convert to JIS-X208-kana
+     *
+     * @return string   the name of the converted file
+     */
+    public static function kanjiFileConv(string $file, string $enc, string $kana): string
+    {
+        if ($enc == '' && $kana == '') {
+            return $file;
+        }
+        $tmpfname = tempnam($GLOBALS['PMA_Config']->getUploadTempDir(), $enc);
+        $fpd      = fopen($tmpfname, 'wb');
+        $fps      = fopen($file, 'r');
+        self::kanjiChangeOrder();
+        while (! feof($fps)) {
+            $line = fgets($fps, 4096);
+            $dist = self::kanjiStrConv($line, $enc, $kana);
+            fwrite($fpd, $dist);
+        } // end while
+        self::kanjiChangeOrder();
+        fclose($fps);
+        fclose($fpd);
+        unlink($file);
+
+        return $tmpfname;
+    }
+
+    /**
+     * Defines radio form fields to switch between encoding modes
+     *
+     * @return string HTML code for the radio controls
+     */
+    public static function kanjiEncodingForm(): string
+    {
+        $template = new Template();
+        return $template->render('encoding/kanji_encoding_form');
+    }
+
+    /**
+     * Lists available encodings.
+     *
+     * @return array
+     */
+    public static function listEncodings(): array
+    {
+        if (self::$_engine === null) {
+            self::initEngine();
+        }
+        /* Most engines do not support listing */
+        if (self::$_engine != self::ENGINE_MB) {
+            return $GLOBALS['cfg']['AvailableCharsets'];
+        }
+
+        return array_intersect(
+            array_map('strtolower', mb_list_encodings()),
+            $GLOBALS['cfg']['AvailableCharsets']
+        );
+    }
+}