egroupware/setup/fix_mysql_charset.php

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<?php
/**************************************************************************\
* eGroupWare - Setup - fixes a mysql DB to match our system_charset *
* http://www.eGroupWare.org *
* Written by RalfBecker@outdoor-training.de *
* -------------------------------------------- *
* This program is free software; you can redistribute it and/or modify it *
* under the terms of the GNU General Public License as published by the *
* Free Software Foundation; either version 2 of the License, or (at your *
* option) any later version. *
\**************************************************************************/
/* $Id$ */
// if we are NOT called as part of an update script, behave like a regular setup script
if (!isset($GLOBALS['egw_setup']) || !is_object($GLOBALS['egw_setup']))
{
$diagnostics = 1; // can be set to 0=non, 1=some (default for now), 2=all
$GLOBALS['egw_info'] = array(
'flags' => array(
'noheader' => True,
'nonavbar' => True,
'currentapp' => 'home',
'noapi' => True
));
include('./inc/functions.inc.php');
// Authorize the user to use setup app and load the database
// Does not return unless user is authorized
if (!$GLOBALS['egw_setup']->auth('Config') || @$_POST['cancel'])
{
Header('Location: index.php');
exit;
}
$GLOBALS['egw_setup']->loaddb();
$tpl_root = $GLOBALS['egw_setup']->html->setup_tpl_dir('setup');
$setup_tpl = CreateObject('phpgwapi.Template',$tpl_root);
$setup_tpl->set_file(array(
'T_head' => 'head.tpl',
'T_footer' => 'footer.tpl',
));
$GLOBALS['egw_setup']->html->show_header('',False,'config',$GLOBALS['egw_setup']->ConfigDomain . '(' . $GLOBALS['egw_domain'][$GLOBALS['egw_setup']->ConfigDomain]['db_type'] . ')');
echo '<h3>'.'Fix mysql DB to match the eGroupWare system_charset'."</h3>\n";
$running_standalone = true;
}
$db =& $GLOBALS['egw_setup']->db;
$charset2mysql =& $GLOBALS['egw_setup']->db->Link_ID->charset2mysql;
$mysql2charset = array_flip($charset2mysql);
$ServerInfo = $db->Link_ID->ServerInfo();
$db_version = (float) $ServerInfo['version'];
if ($running_standalone || $_REQUEST['debug']) echo "<p>DB-Type='<b>{$GLOBALS['egw_setup']->db->Type}</b>', DB-Version=<b>$db_version</b> ($ServerInfo[description]), eGroupWare system_charset='<b>{$GLOBALS['egw_setup']->system_charset}</b>', DB-connection charset was '<b>{$GLOBALS['egw_setup']->db_charset_was}</b>'</p>\n";
$mysql_system_charset = isset($charset2mysql[$GLOBALS['egw_setup']->system_charset]) ?
$charset2mysql[$GLOBALS['egw_setup']->system_charset] : $GLOBALS['egw_setup']->system_charset;
if (substr($db->Type,0,5) == 'mysql' && $db_version >= 4.1 && $GLOBALS['egw_setup']->system_charset && $GLOBALS['egw_setup']->db_charset_was &&
$GLOBALS['egw_setup']->system_charset != $GLOBALS['egw_setup']->db_charset_was)
{
$tables_modified = 'no';
$tables = array();
$db->query("SHOW TABLE STATUS",__LINE__,__FILE__);
while (($row = $db->row(true)))
{
$tables[$row['Name']] = $row['Collation'];
}
foreach($tables as $table => $collation)
{
$columns = array();
$db->query("SHOW FULL FIELDS FROM `$table`",__LINE__,__FILE__);
while(($row = $db->row(true)))
{
$columns[] = $row;
}
//echo $table; _debug_array($columns);
$fulltext = $fulltext_back = array();
$db->query("SHOW KEYS FROM `$table`",__LINE__,__FILE__);
while(($row = $db->row(true)))
{
if ($row['Index_type'] == 'FULLTEXT')
{
$fulltext[$row['Column_name']] = $row['Key_name'];
}
}
$alter_table = $alter_table_back = array();
foreach($columns as $column)
{
if ($column['Collation'] && preg_match('/^(char|varchar|.*text)\(?([0-9]*)\)?$/i',$column['Type'],$matches))
{
list(,$type,$size) = $matches;
list($charset) = explode('_',$column['Collation']);
if (isset($mysql2charset[$charset])) $charset = $mysql2charset[$charset];
if ($charset != $GLOBALS['egw_setup']->system_charset)
{
$col = $column['Field'];
if ($type == 'varchar' || $type == 'char') // old schema_proc (pre 1.0.1) used also char
{
$type = 'varchar('.$size.')';
$bintype = 'varbinary('.$size.')';
}
else
{
$bintype = str_replace('text','blob',$type);
}
//echo "<p>$table.$col $type CHARACTER SET $charset $default $null</p>\n";
$default = !is_null($column['Default']) ? "DEFAULT '".$column['Default']."'" : '';
$null = $column['Null'] ? 'NULL' : 'NOT NULL';
if (isset($fulltext[$col]))
{
$idx_name = $fulltext[$col];
$idx_cols = array();
foreach($fulltext as $c => $i)
{
if ($i == $idx_name)
{
$idx_cols[] = $c;
unset($fulltext[$c]);
}
}
$fulltext_back[$idx_name] = $idx_cols;
$alter_table[] = " DROP INDEX `$idx_name`";
}
$alter_table[] = " CHANGE `$col` `$col` $bintype $default $null";
$alter_table_back[] = " CHANGE `$col` `$col` $type CHARACTER SET $mysql_system_charset $default $null";
}
}
}
list($charset) = explode('_',$collation);
if (isset($mysql2charset[$charset])) $charset = $mysql2charset[$charset];
if ($charset != $GLOBALS['egw_setup']->system_charset)
{
$alter_table[] = " DEFAULT CHARACTER SET $mysql_system_charset";
}
if (count($alter_table))
{
$alter_table = "ALTER TABLE $table\n".implode(",\n",$alter_table);
if ($running_standalone || $_REQUEST['debug']) echo '<p>'.nl2br($alter_table)."</p>\n";
if (!$db->query($alter_table,__LINE__,__FILE__))
{
echo "<p>SQL Error: ".nl2br($alter_table)."</p>\n";
echo "<b>{$db->Type} Error</b>: {$db->Errno} ({$db->Error})</p>\n";
echo "<p>continuing ...</p>\n";
continue;
}
foreach($fulltext_back as $idx_name => $idx_cols)
{
$alter_table_back[] = " ADD FULLTEXT `$idx_name` (`".implode('`,`',$idx_cols)."`)";
}
if (count($alter_table_back))
{
$alter_table_back = "ALTER TABLE $table\n".implode(",\n",$alter_table_back);
if ($running_standalone || $_REQUEST['debug']) echo '<p>'.nl2br($alter_table_back)."</p>\n";
if (!$db->query($alter_table_back,__LINE__,__FILE__))
{
echo "<p><b>SQL Error</b>: ".nl2br($alter_table_back)."</p>\n";
echo "<b>{$db->Type} Error</b>: {$db->Errno} ({$db->Error})</p>\n";
echo "<p>continuing ...</p>\n";
continue;
}
}
++$tables_modified;
}
}
// change the default charset of the DB
$db->query("SHOW CREATE DATABASE `$db->Database`",__LINE__,__FILE__);
$create_db = $db->next_record() ? $db->f(1) : '';
if (preg_match('/CHARACTER SET ([a-z1-9_-]+) /i',$create_db,$matches) && $matches[1] != $mysql_system_charset)
{
$alter_db = "ALTER DATABASE `$db->Database` DEFAULT CHARACTER SET $mysql_system_charset";
if ($running_standalone || $_REQUEST['debug']) echo '<p>'.$alter_db."</p>\n";
$db->query($alter_db,__LINE__,__FILE__);
}
}
if ($running_standalone || $_REQUEST['debug'])
{
echo "<p>$tables_modified tables changed to our system_charset {$GLOBALS['egw_setup']->system_charset}($mysql_system_charset)</p>\n";
if ($running_standalone) $GLOBALS['egw_setup']->html->show_footer();
}