<?php/* $Id: charset_conversion.lib.php 8629 2006-02-22 08:26:32Z nijel $ */// vim: expandtab sw=4 ts=4 sts=4:/** * Charset conversion functions. *//** * Loads the recode or iconv extensions if any of it is not loaded yet */if (isset($cfg['AllowAnywhereRecoding'])    && $cfg['AllowAnywhereRecoding']    && $allow_recoding) {    if ($cfg['RecodingEngine'] == 'recode') {        if (!@extension_loaded('recode')) {            PMA_dl('recode');            if (!@extension_loaded('recode')) {                echo $strCantLoadRecodeIconv;                exit;            }        }        $PMA_recoding_engine             = 'recode';    } elseif ($cfg['RecodingEngine'] == 'iconv') {        if (!@extension_loaded('iconv')) {            PMA_dl('iconv');            if (!@extension_loaded('iconv')) {                echo $strCantLoadRecodeIconv;                exit;            }        }        $PMA_recoding_engine             = 'iconv';    } else {        if (@extension_loaded('iconv')) {            $PMA_recoding_engine         = 'iconv';        } elseif (@extension_loaded('recode')) {            $PMA_recoding_engine         = 'recode';        } else {            PMA_dl('iconv');            if (!@extension_loaded('iconv')) {                PMA_dl('recode');                if (!@extension_loaded('recode')) {                    echo $strCantLoadRecodeIconv;                    exit;                } else {                    $PMA_recoding_engine = 'recode';                }            } else {                $PMA_recoding_engine     = 'iconv';            }        }    }} // end load recode/iconv extensiondefine('PMA_CHARSET_NONE', 0);define('PMA_CHARSET_ICONV', 1);define('PMA_CHARSET_LIBICONV', 2);define('PMA_CHARSET_RECODE', 3);define('PMA_CHARSET_ICONV_AIX', 4);if (!isset($cfg['IconvExtraParams'])) {    $cfg['IconvExtraParams'] = '';}// Finally detects which function will we use:if (isset($cfg['AllowAnywhereRecoding'])    && $cfg['AllowAnywhereRecoding']    && $allow_recoding) {    if (!isset($PMA_recoding_engine)) {        $PMA_recoding_engine = $cfg['RecodingEngine'];    }    if ($PMA_recoding_engine == 'iconv') {        if (@function_exists('iconv')) {            if ((@stristr(PHP_OS, 'AIX')) && (@strcasecmp(ICONV_IMPL, 'unknown') == 0) && (@strcasecmp(ICONV_VERSION, 'unknown') == 0)) {                $PMA_recoding_engine = PMA_CHARSET_ICONV_AIX;            } else {                $PMA_recoding_engine = PMA_CHARSET_ICONV;            }        } elseif (@function_exists('libiconv')) {            $PMA_recoding_engine = PMA_CHARSET_LIBICONV;        } else {            $PMA_recoding_engine = PMA_CHARSET_NONE;            if (!isset($GLOBALS['is_header_sent'])) {                include('./libraries/header.inc.php');            }            echo $strCantUseRecodeIconv;            require_once('./libraries/footer.inc.php');            exit();        }    } elseif ($PMA_recoding_engine == 'recode') {        if (@function_exists('recode_string')) {            $PMA_recoding_engine = PMA_CHARSET_RECODE;        } else {            $PMA_recoding_engine = PMA_CHARSET_NONE;            require_once('./libraries/header.inc.php');            echo $strCantUseRecodeIconv;            require_once('./libraries/footer.inc.php');            exit;        }    } else {        if (@function_exists('iconv')) {            if ((@stristr(PHP_OS, 'AIX')) && (@strcasecmp(ICONV_IMPL, 'unknown') == 0) && (@strcasecmp(ICONV_VERSION, 'unknown') == 0)) {                $PMA_recoding_engine = PMA_CHARSET_ICONV_AIX;            } else {                $PMA_recoding_engine = PMA_CHARSET_ICONV;            }        } elseif (@function_exists('libiconv')) {            $PMA_recoding_engine = PMA_CHARSET_LIBICONV;        } elseif (@function_exists('recode_string')) {            $PMA_recoding_engine = PMA_CHARSET_RECODE;        } else {            $PMA_recoding_engine = PMA_CHARSET_NONE;            require_once('./libraries/header.inc.php');            echo $strCantUseRecodeIconv;            require_once('./libraries/footer.inc.php');            exit;        }    }} else {    $PMA_recoding_engine         = PMA_CHARSET_NONE;}/* Load AIX iconv wrapper if needed */if ($PMA_recoding_engine == PMA_CHARSET_ICONV_AIX) {    require_once('./libraries/iconv_wrapper.lib.php');}/** * Converts encoding according to current settings. * * @param   mixed    what to convert (string or array of strings or object returned by mysql_fetch_field) * * @return  string   converted string or array of strings * * @global  array    the configuration array * @global  boolean  whether recoding is allowed or not * @global  string   the current charset * @global  array    the charset to convert to * * @access  public * * @author  nijel */function PMA_convert_display_charset($what) {    global $cfg, $allow_recoding, $charset, $convcharset;    if (!(isset($cfg['AllowAnywhereRecoding']) && $cfg['AllowAnywhereRecoding'] && $allow_recoding)        || $convcharset == $charset // rabus: if input and output charset are the same, we don't have to do anything...        // this constant is not defined before the login:        || (defined('PMA_MYSQL_INT_VERSION') && PMA_MYSQL_INT_VERSION >= 40100) ) {  // lem9: even if AllowAnywhereRecoding is TRUE, do not recode for MySQL >= 4.1.x since MySQL does the job        return $what;    } elseif (is_array($what)) {        $result = array();        foreach ($what AS $key => $val) {            if (is_string($val) || is_array($val)) {                if (is_string($key)) {                    $result[PMA_convert_display_charset($key)] = PMA_convert_display_charset($val);                } else {                    $result[$key] = PMA_convert_display_charset($val);                }            } else {                $result[$key]     = $val;            }        } // end while        return $result;    } elseif (is_string($what)) {        switch ($GLOBALS['PMA_recoding_engine']) {            case PMA_CHARSET_RECODE:                return recode_string($convcharset . '..'  . $charset, $what);            case PMA_CHARSET_ICONV:                return iconv($convcharset, $charset . $cfg['IconvExtraParams'], $what);            case PMA_CHARSET_ICONV_AIX:                return PMA_aix_iconv_wrapper($convcharset, $charset . $cfg['IconvExtraParams'], $what);            case PMA_CHARSET_LIBICONV:                return libiconv($convcharset, $charset . $GLOBALS['cfg']['IconvExtraParams'], $what);            default:                return $what;        }    } elseif (is_object($what)) {        // isn't it object returned from mysql_fetch_field ?        if (@is_string($what->name)) {            $what->name = PMA_convert_display_charset($what->name);        }        if (@is_string($what->table)) {            $what->table = PMA_convert_display_charset($what->table);        }        if (@is_string($what->Database)) {            $what->Database = PMA_convert_display_charset($what->Database);        }        return $what;    } else {        // when we don't know what it is we don't touch it...        return $what;    }} //  end of the "PMA_convert_display_charset()" function/** * Converts encoding of text according to current settings. * * @param   string   what to convert * * @return  string   converted text * * @global  array    the configuration array * @global  boolean  whether recoding is allowed or not * @global  string   the current charset * @global  array    the charset to convert to * * @access  public * * @author  nijel */function PMA_convert_charset($what) {    global $cfg, $allow_recoding, $charset, $convcharset;    if (!(isset($cfg['AllowAnywhereRecoding']) && $cfg['AllowAnywhereRecoding'] && $allow_recoding)        || $convcharset == $charset) { // rabus: if input and output charset are the same, we don't have to do anything...        return $what;    } else {        switch ($GLOBALS['PMA_recoding_engine']) {            case PMA_CHARSET_RECODE:                return recode_string($charset . '..'  . $convcharset, $what);            case PMA_CHARSET_ICONV:                return iconv($charset, $convcharset . $cfg['IconvExtraParams'], $what);            case PMA_CHARSET_ICONV_AIX:                return PMA_aix_iconv_wrapper($charset, $convcharset . $cfg['IconvExtraParams'], $what);            case PMA_CHARSET_LIBICONV:                return libiconv($charset, $convcharset . $GLOBALS['cfg']['IconvExtraParams'], $what);            default:                return $what;        }    }} //  end of the "PMA_convert_charset()" function/** * Converts encoding of text according to parameters with detected * conversion function. * * @param   string   source charset * @param   string   target charset * @param   string   what to convert * * @return  string   converted text * * @access  public * * @author  nijel */function PMA_convert_string($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'], $what);        case PMA_CHARSET_ICONV_AIX:            return PMA_aix_iconv_wrapper($src_charset, $dest_charset . $GLOBALS['cfg']['IconvExtraParams'], $what);        case PMA_CHARSET_LIBICONV:            return libiconv($src_charset, $dest_charset, $what);        default:            return $what;    }} //  end of the "PMA_convert_string()" function/** * Converts encoding of file according to parameters with detected * conversion function. The old file will be unlinked and new created and * its file name is returned. * * @param   string   source charset * @param   string   target charset * @param   string   file to convert * * @return  string   new temporay file * * @access  public * * @author  nijel */function PMA_convert_file($src_charset, $dest_charset, $file) {    switch ($GLOBALS['PMA_recoding_engine']) {        case PMA_CHARSET_RECODE:        case PMA_CHARSET_ICONV:        case PMA_CHARSET_LIBICONV:            $tmpfname = tempnam('', 'PMA_convert_file');            $fin      = fopen($file, 'r');            $fout     = fopen($tmpfname, 'w');            if ($GLOBALS['PMA_recoding_engine'] == PMA_CHARSET_RECODE) {                recode_file($src_charset . '..'  . $dest_charset, $fin, $fout);            } else {                while (!feof($fin)) {                    $line = fgets($fin, 4096);                    if ($GLOBALS['PMA_recoding_engine'] == PMA_CHARSET_ICONV) {                        $dist = iconv($src_charset, $dest_charset . $GLOBALS['cfg']['IconvExtraParams'], $line);                    } elseif ($GLOBALS['PMA_recoding_engine'] == PMA_CHARSET_ICONV_AIX) {                        $dist = PMA_aix_iconv_wrapper($src_charset, $dest_charset . $GLOBALS['cfg']['IconvExtraParams'], $line);                    } else {                        $dist = libiconv($src_charset, $dest_charset . $GLOBALS['cfg']['IconvExtraParams'], $line);                    }                    fputs($fout, $dist);                } // end while            }            fclose($fin);            fclose($fout);            unlink($file);            return $tmpfname;        default:            return $file;    }} //  end of the "PMA_convert_file()" function?>