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<?php

/**

*

* This file is part of the phpBB Forum Software package.

*

* @copyright (c) phpBB Limited <https://www.phpbb.com>

* @license GNU General Public License, version 2 (GPL-2.0)

*

* For full copyright and license information, please see

* the docs/CREDITS.txt file.

*

*/

/**

* This file creates SQL statements to upgrade phpBB on MySQL 3.x/4.0.x to 4.1.x/5.x

*/

//

// Security message:

//

// This script is potentially dangerous.

// Remove or comment the next line (die(".... ) to enable this script.

// Do NOT FORGET to either remove this script or disable it after you have used it.

//

die("Please read the first lines of this script for instructions on how to enable it");

define('IN_PHPBB', true);

$phpbb_root_path = (defined('PHPBB_ROOT_PATH')) ? PHPBB_ROOT_PATH : './';

$phpEx = substr(strrchr(__FILE__, '.'), 1);

include($phpbb_root_path . 'common.' . $phpEx);

$prefix = $table_prefix;

$newline = "\n";

if (PHP_SAPI !== 'cli')

{

$newline = '<br>';

}

$sql = 'DESCRIBE ' . POSTS_TABLE . ' post_text';

$result = $db->sql_query($sql);

$row = $db->sql_fetchrow($result);

$db->sql_freeresult($result);

$mysql_indexer = $drop_index = false;

if (strtolower($row['Type']) === 'mediumtext')

{

$mysql_indexer = true;

}

if (strtolower($row['Key']) === 'mul')

{

$drop_index = true;

}

echo "USE $dbname;$newline$newline";

@set_time_limit(0);

$finder = new \phpbb\finder(new \phpbb\filesystem(), $phpbb_root_path);

$classes = $finder->core_path('phpbb/')

->directory('/db/migration/data')

->get_classes();

$factory = new \phpbb\db\tools\factory();

$db_tools = $factory->get($db, true);

$schema_generator = new \phpbb\db\migration\schema_generator($classes, $config, $db, $db_tools, $phpbb_root_path, $phpEx, $table_prefix);

$schema_data = $schema_generator->get_schema();

$dbms_type_map = \phpbb\db\tools\tools::get_dbms_type_map();

foreach ($schema_data as $table_name => $table_data)

{

$table_name = str_replace('phpbb_', $prefix, $table_name);

// Write comment about table

echo "# Table: '{$table_name}'$newline";

// Create Table statement

$generator = $textimage = false;

// Do we need to DROP a fulltext index before we alter the table?

if ($table_name == ($prefix . 'posts') && $drop_index)

{

echo "ALTER TABLE {$table_name}{$newline}";

echo "DROP INDEX post_text,{$newline}DROP INDEX post_subject,{$newline}DROP INDEX post_content;{$newline}{$newline}";

}

$line = "ALTER TABLE {$table_name} $newline";

// Table specific so we don't get overlap

$modded_array = array();

// Write columns one by one...

foreach ($table_data['COLUMNS'] as $column_name => $column_data)

{

// Get type

if (strpos($column_data[0], ':') !== false)

{

list($orig_column_type, $column_length) = explode(':', $column_data[0]);

$column_type = sprintf($dbms_type_map['mysql_41'][$orig_column_type . ':'], $column_length);

if (isset($dbms_type_map['mysql_40'][$orig_column_type . ':']['limit']) &&

isset($dbms_type_map['mysql_40'][$orig_column_type . ':']['limit'][0]))

{

switch ($dbms_type_map['mysql_40'][$orig_column_type . ':']['limit'][0])

{

case 'mult':

if (($column_length * $dbms_type_map['mysql_40'][$orig_column_type . ':']['limit'][1]) > $dbms_type_map['mysql_40'][$orig_column_type . ':']['limit'][2])

{

$modded_array[$column_name] = $column_type;

}

break;

}

}

$orig_column_type .= ':';

}

else

{

$orig_column_type = $column_data[0];

$other_column_type = $dbms_type_map['mysql_40'][$column_data[0]];

if ($other_column_type == 'text' || $other_column_type == 'blob')

{

$modded_array[$column_name] = $column_type;

}

$column_type = $dbms_type_map['mysql_41'][$column_data[0]];

}

// Adjust default value if db-dependent specified

if (is_array($column_data[1]))

{

$column_data[1] = (isset($column_data[1][$dbms])) ? $column_data[1][$dbms] : $column_data[1]['default'];

}

$line .= "\tMODIFY {$column_name} {$column_type} ";

// For hexadecimal values do not use single quotes

if (!is_null($column_data[1]) && substr($column_type, -4) !== 'text' && substr($column_type, -4) !== 'blob')

{

$line .= (strpos($column_data[1], '0x') === 0) ? "DEFAULT {$column_data[1]} " : "DEFAULT '{$column_data[1]}' ";

}

$line .= 'NOT NULL';

if (isset($column_data[2]))

{

if ($column_data[2] == 'auto_increment')

{

$line .= ' auto_increment';

}

else if ($column_data[2] == 'true_sort')

{

$line .= ' COLLATE utf8_unicode_ci';

}

else if ($column_data[2] == 'no_sort')

{

$line .= ' COLLATE utf8_bin';

}

}

else if (preg_match('/(?:var)?char|(?:medium)?text/i', $column_type))

{

$line .= ' COLLATE utf8_bin';

}

$line .= ",$newline";

}

// Write Keys

if (isset($table_data['KEYS']))

{

foreach ($table_data['KEYS'] as $key_name => $key_data)

{

$temp = '';

if (!is_array($key_data[1]))

{

$key_data[1] = array($key_data[1]);

}

$temp .= ($key_data[0] == 'INDEX') ? "\tADD KEY" : '';

$temp .= ($key_data[0] == 'UNIQUE') ? "\tADD UNIQUE" : '';

$repair = false;

foreach ($key_data[1] as $key => $col_name)

{

if (isset($modded_array[$col_name]))

{

$repair = true;

}

}

if ($repair)

{

$line .= "\tDROP INDEX " . $key_name . ",$newline";

$line .= $temp;

$line .= ' ' . $key_name . ' (' . implode(', ', $key_data[1]) . "),$newline";

}

}

}

//$line .= "\tCONVERT TO CHARACTER SET `utf8`$newline";

$line .= "\tDEFAULT CHARSET=utf8 COLLATE=utf8_bin;$newline$newline";

echo $line . "$newline";

// Do we now need to re-add the fulltext index? ;)

if ($table_name == ($prefix . 'posts') && $drop_index)

{

echo "ALTER TABLE $table_name ADD FULLTEXT (post_subject), ADD FULLTEXT (post_text), ADD FULLTEXT post_content (post_subject, post_text);{$newline}";

}

}