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krtmn/includes/functions-upgrade.php

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PHP
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2012-02-26 03:28:54 +01:00
<?php
// Upgrade YOURLS and DB schema
function yourls_upgrade( $step, $oldver, $newver, $oldsql, $newsql ) {
// special case for 1.3: the upgrade is a multi step procedure
if( $oldsql == 100 ) {
yourls_upgrade_to_14( $step );
}
// other upgrades which are done in a single pass
switch( $step ) {
case 1:
case 2:
if( $oldsql < 210 )
yourls_upgrade_to_141();
if( $oldsql < 220 )
yourls_upgrade_to_143();
if( $oldsql < 250 )
yourls_upgrade_to_15();
if( $oldsql < 482 )
yourls_upgrade_482();
yourls_redirect_javascript( yourls_admin_url( "upgrade.php?step=3" ) );
break;
case 3:
// Update options to reflect latest version
yourls_update_option( 'version', YOURLS_VERSION );
yourls_update_option( 'db_version', YOURLS_DB_VERSION );
break;
}
}
// Upgrade r482
function yourls_upgrade_482() {
// Change URL title charset to UTF8
global $ydb;
$table_url = YOURLS_DB_TABLE_URL;
$sql = "ALTER TABLE `$table_url` CHANGE `title` `title` TEXT CHARACTER SET utf8;";
$ydb->query( $sql );
echo "<p>Updating table structure. Please wait...</p>";
}
/************************** 1.4.3 -> 1.5 **************************/
// Main func for upgrade from 1.4.3 to 1.5
function yourls_upgrade_to_15( ) {
// Create empty 'active_plugins' entry in the option if needed
if( yourls_get_option( 'active_plugins' ) === false )
yourls_add_option( 'active_plugins', array() );
echo "<p>Enabling the plugin API. Please wait...</p>";
// Alter URL table to store titles
global $ydb;
$table_url = YOURLS_DB_TABLE_URL;
$sql = "ALTER TABLE `$table_url` ADD `title` TEXT AFTER `url`;";
$ydb->query( $sql );
echo "<p>Updating table structure. Please wait...</p>";
// Update .htaccess
yourls_create_htaccess();
echo "<p>Updating .htaccess file. Please wait...</p>";
}
/************************** 1.4.1 -> 1.4.3 **************************/
// Main func for upgrade from 1.4.1 to 1.4.3
function yourls_upgrade_to_143( ) {
// Check if we have 'keyword' (borked install) or 'shorturl' (ok install)
global $ydb;
$table_log = YOURLS_DB_TABLE_LOG;
$sql = "SHOW COLUMNS FROM `$table_log`";
$cols = $ydb->get_results( $sql );
if ( $cols[2]->Field == 'keyword' ) {
$sql = "ALTER TABLE `$table_log` CHANGE `keyword` `shorturl` VARCHAR( 200 ) BINARY;";
$ydb->query( $sql );
}
echo "<p>Structure of existing tables updated. Please wait...</p>";
}
/************************** 1.4 -> 1.4.1 **************************/
// Main func for upgrade from 1.4 to 1.4.1
function yourls_upgrade_to_141( ) {
// Kill old cookies from 1.3 and prior
setcookie('yourls_username', null, time() - 3600 );
setcookie('yourls_password', null, time() - 3600 );
// alter table URL
yourls_alter_url_table_to_141();
// recreate the htaccess file if needed
yourls_create_htaccess();
}
// Alter table URL to 1.4.1
function yourls_alter_url_table_to_141() {
global $ydb;
$table_url = YOURLS_DB_TABLE_URL;
$alter = "ALTER TABLE `$table_url` CHANGE `keyword` `keyword` VARCHAR( 200 ) BINARY, CHANGE `url` `url` TEXT BINARY ";
$ydb->query( $alter );
echo "<p>Structure of existing tables updated. Please wait...</p>";
}
/************************** 1.3 -> 1.4 **************************/
// Main func for upgrade from 1.3-RC1 to 1.4
function yourls_upgrade_to_14( $step ) {
switch( $step ) {
case 1:
// create table log & table options
// update table url structure
// update .htaccess
yourls_create_tables_for_14(); // no value returned, assuming it went OK
yourls_alter_url_table_to_14(); // no value returned, assuming it went OK
$clean = yourls_clean_htaccess_for_14(); // returns bool
$create = yourls_create_htaccess(); // returns bool
if ( !$create )
echo "<p class='warning'>Please create your <tt>.htaccess</tt> file (I could not do it for you). Please refer to <a href='http://yourls.org/htaccess'>http://yourls.org/htaccess</a>.";
yourls_redirect_javascript( yourls_admin_url( "upgrade.php?step=2&oldver=1.3&newver=1.4&oldsql=100&newsql=200" ), $create );
break;
case 2:
// convert each link in table url
yourls_update_table_to_14();
break;
case 3:
// update table url structure part 2: recreate indexes
yourls_alter_url_table_to_14_part_two();
// update version & db_version & next_id in the option table
// attempt to drop YOURLS_DB_TABLE_NEXTDEC
yourls_update_options_to_14();
// Now upgrade to 1.4.1
yourls_redirect_javascript( yourls_admin_url( "upgrade.php?step=1&oldver=1.4&newver=1.4.1&oldsql=200&newsql=210" ) );
break;
}
}
// Update options to reflect new version
function yourls_update_options_to_14() {
yourls_update_option( 'version', '1.4' );
yourls_update_option( 'db_version', '200' );
if( defined('YOURLS_DB_TABLE_NEXTDEC') ) {
global $ydb;
$table = YOURLS_DB_TABLE_NEXTDEC;
$next_id = $ydb->get_var("SELECT `next_id` FROM `$table`");
yourls_update_option( 'next_id', $next_id );
@$ydb->query( "DROP TABLE `$table`" );
} else {
yourls_update_option( 'next_id', 1 ); // In case someone mistakenly deleted the next_id constant or table too early
}
}
// Create new tables for YOURLS 1.4: options & log
function yourls_create_tables_for_14() {
global $ydb;
$queries = array();
$queries[YOURLS_DB_TABLE_OPTIONS] =
'CREATE TABLE IF NOT EXISTS `'.YOURLS_DB_TABLE_OPTIONS.'` ('.
'`option_id` int(11) unsigned NOT NULL auto_increment,'.
'`option_name` varchar(64) NOT NULL default "",'.
'`option_value` longtext NOT NULL,'.
'PRIMARY KEY (`option_id`,`option_name`),'.
'KEY `option_name` (`option_name`)'.
');';
$queries[YOURLS_DB_TABLE_LOG] =
'CREATE TABLE IF NOT EXISTS `'.YOURLS_DB_TABLE_LOG.'` ('.
'`click_id` int(11) NOT NULL auto_increment,'.
'`click_time` datetime NOT NULL,'.
'`shorturl` varchar(200) NOT NULL,'.
'`referrer` varchar(200) NOT NULL,'.
'`user_agent` varchar(255) NOT NULL,'.
'`ip_address` varchar(41) NOT NULL,'.
'`country_code` char(2) NOT NULL,'.
'PRIMARY KEY (`click_id`),'.
'KEY `shorturl` (`shorturl`)'.
');';
foreach( $queries as $query ) {
$ydb->query( $query ); // There's no result to be returned to check if table was created (except making another query to check table existence, which we'll avoid)
}
echo "<p>New tables created. Please wait...</p>";
}
// Alter table structure, part 1 (change schema, drop index)
function yourls_alter_url_table_to_14() {
global $ydb;
$table = YOURLS_DB_TABLE_URL;
$alters = array();
$results = array();
$alters[] = "ALTER TABLE `$table` CHANGE `id` `keyword` VARCHAR( 200 ) NOT NULL";
$alters[] = "ALTER TABLE `$table` CHANGE `url` `url` TEXT NOT NULL";
$alters[] = "ALTER TABLE `$table` DROP PRIMARY KEY";
foreach ( $alters as $query ) {
$ydb->query( $query );
}
echo "<p>Structure of existing tables updated. Please wait...</p>";
}
// Alter table structure, part 2 (recreate indexes after the table is up to date)
function yourls_alter_url_table_to_14_part_two() {
global $ydb;
$table = YOURLS_DB_TABLE_URL;
$alters = array();
$alters[] = "ALTER TABLE `$table` ADD PRIMARY KEY ( `keyword` )";
$alters[] = "ALTER TABLE `$table` ADD INDEX ( `ip` )";
$alters[] = "ALTER TABLE `$table` ADD INDEX ( `timestamp` )";
foreach ( $alters as $query ) {
$ydb->query( $query );
}
echo "<p>New table index created</p>";
}
// Convert each link from 1.3 (id) to 1.4 (keyword) structure
function yourls_update_table_to_14() {
global $ydb;
$table = YOURLS_DB_TABLE_URL;
// Modify each link to reflect new structure
$chunk = 45;
$from = isset($_GET['from']) ? intval( $_GET['from'] ) : 0 ;
$total = yourls_get_db_stats();
$total = $total['total_links'];
$sql = "SELECT `keyword`,`url` FROM `$table` WHERE 1=1 ORDER BY `url` ASC LIMIT $from, $chunk ;";
$rows = $ydb->get_results($sql);
$count = 0;
$queries = 0;
foreach( $rows as $row ) {
$keyword = $row->keyword;
$url = $row->url;
$newkeyword = yourls_int2string( $keyword );
$ydb->query("UPDATE `$table` SET `keyword` = '$newkeyword' WHERE `url` = '$url';");
if( $ydb->result === true ) {
$queries++;
} else {
echo "<p>Huho... Could not update rown with url='$url', from keyword '$keyword' to keyword '$newkeyword'</p>"; // Find what went wrong :/
}
$count++;
}
// All done for this chunk of queries, did it all go as expected?
$success = true;
if( $count != $queries ) {
$success = false;
$num = $count - $queries;
echo "<p>$num error(s) occured while updating the URL table :(</p>";
}
if ( $count == $chunk ) {
// there are probably other rows to convert
$from = $from + $chunk;
$remain = $total - $from;
echo "<p>Converted $chunk database rows ($remain remaining). Continuing... Please do not close this window until it's finished!</p>";
yourls_redirect_javascript( yourls_admin_url( "upgrade.php?step=2&oldver=1.3&newver=1.4&oldsql=100&newsql=200&from=$from" ), $success );
} else {
// All done
echo '<p>All rows converted! Please wait...</p>';
yourls_redirect_javascript( yourls_admin_url( "upgrade.php?step=3&oldver=1.3&newver=1.4&oldsql=100&newsql=200" ), $success );
}
}
// Clean .htaccess as it existed before 1.4. Returns boolean
function yourls_clean_htaccess_for_14() {
$filename = YOURLS_ABSPATH.'/.htaccess';
$result = false;
if( is_writeable( $filename ) ) {
$contents = implode( '', file( $filename ) );
// remove "ShortURL" block
$contents = preg_replace( '/# BEGIN ShortURL.*# END ShortURL/s', '', $contents );
// comment out deprecated RewriteRule
$find = 'RewriteRule .* - [E=REMOTE_USER:%{HTTP:Authorization},L]';
$replace = "# You can safely remove this 5 lines block -- it's no longer used in YOURLS\n".
"# $find";
$contents = str_replace( $find, $replace, $contents );
// Write cleaned file
$f = fopen( $filename, 'w' );
fwrite( $f, $contents );
fclose( $f );
$result = true;
}
return $result;
}