Initial commit

2022-11-21 09:47:28 +01:00
commit 76cec83d26
11652 changed files with 1980467 additions and 0 deletions
--- a/#pma/libraries/charset_conversion.lib.php
+++ b/#pma/libraries/charset_conversion.lib.php
@ -0,0 +1,125 @@
+<?php
+/* vim: set expandtab sw=4 ts=4 sts=4: */
+/**
+ * Charset conversion functions.
+ *
+ * @package PhpMyAdmin
+ */
+if (! defined('PHPMYADMIN')) {
+    exit;
+}
+
+define('PMA_CHARSET_NONE', 0);
+define('PMA_CHARSET_ICONV', 1);
+define('PMA_CHARSET_RECODE', 2);
+define('PMA_CHARSET_ICONV_AIX', 3);
+define('PMA_CHARSET_MB', 4);
+
+if (! isset($GLOBALS['cfg']['RecodingEngine'])) {
+    $GLOBALS['cfg']['RecodingEngine'] = '';
+}
+// Finally detect which function we will use:
+if ($GLOBALS['cfg']['RecodingEngine'] == 'iconv') {
+    if (@function_exists('iconv')) {
+        $PMA_recoding_engine = PMA_getIconvRecodingEngine();
+    } else {
+        $PMA_recoding_engine = PMA_CHARSET_NONE;
+        PMA_warnMissingExtension('iconv');
+    }
+} elseif ($GLOBALS['cfg']['RecodingEngine'] == 'recode') {
+    if (@function_exists('recode_string')) {
+        $PMA_recoding_engine = PMA_CHARSET_RECODE;
+    } else {
+        $PMA_recoding_engine = PMA_CHARSET_NONE;
+        PMA_warnMissingExtension('recode');
+    }
+} elseif ($GLOBALS['cfg']['RecodingEngine'] == 'mb') {
+    if (@function_exists('mb_convert_encoding')) {
+        $PMA_recoding_engine = PMA_CHARSET_MB;
+    } else {
+        $PMA_recoding_engine = PMA_CHARSET_NONE;
+        PMA_warnMissingExtension('mbstring');
+    }
+} elseif ($GLOBALS['cfg']['RecodingEngine'] == 'auto') {
+    /*
+     * We also need to verify iconv works, see
+     * https://github.com/phpmyadmin/phpmyadmin/issues/11787/
+     * and
+     * https://bugs.php.net/bug.php?id=44096
+     */
+    if (@function_exists('iconv') && @iconv_strlen('', 'cp1250') !== false) {
+        $PMA_recoding_engine = PMA_getIconvRecodingEngine();
+    } elseif (@function_exists('recode_string')) {
+        $PMA_recoding_engine = PMA_CHARSET_RECODE;
+    } elseif (@function_exists('mb_convert_encoding')) {
+        $PMA_recoding_engine = PMA_CHARSET_MB;
+    } else {
+        $PMA_recoding_engine = PMA_CHARSET_NONE;
+    }
+} else {
+    $PMA_recoding_engine = PMA_CHARSET_NONE;
+}
+
+/* Load AIX iconv wrapper if needed */
+if ($PMA_recoding_engine == PMA_CHARSET_ICONV_AIX) {
+    include_once './libraries/iconv_wrapper.lib.php';
+}
+
+/**
+ * Determines the correct recoding engine to use
+ *
+ * @return int $PMA_recoding_engine
+ *
+ * @access  public
+ *
+ */
+function PMA_getIconvRecodingEngine()
+{
+    if ((@stristr(PHP_OS, 'AIX'))
+        && (@strcasecmp(ICONV_IMPL, 'unknown') == 0)
+        && (@strcasecmp(ICONV_VERSION, 'unknown') == 0)
+    ) {
+        return PMA_CHARSET_ICONV_AIX;
+    } else {
+        return PMA_CHARSET_ICONV;
+    }
+}
+
+/**
+ * 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 $what         what to convert
+ *
+ * @return string   converted text
+ *
+ * @access  public
+ *
+ */
+function PMA_convertString($src_charset, $dest_charset, $what)
+{
+    if ($src_charset == $dest_charset) {
+        return $what;
+    }
+    switch ($GLOBALS['PMA_recoding_engine']) {
+    case PMA_CHARSET_RECODE:
+        return recode_string($src_charset . '..'  . $dest_charset, $what);
+    case PMA_CHARSET_ICONV:
+        return iconv(
+            $src_charset, $dest_charset . $GLOBALS['cfg']['IconvExtraParams'], $what
+        );
+    case PMA_CHARSET_ICONV_AIX:
+        return PMA_convertAIXIconv(
+            $src_charset, $dest_charset . $GLOBALS['cfg']['IconvExtraParams'], $what
+        );
+    case PMA_CHARSET_MB:
+        return mb_convert_encoding(
+            $what, $dest_charset, $src_charset
+        );
+    default:
+        return $what;
+    }
+} //  end of the "PMA_convertString()" function
+