gnu-social/scripts/fixup_utf8.php

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#!/usr/bin/env php
<?php
/*
* Laconica - a distributed open-source microblogging tool
* Copyright (C) 2009, Control Yourself, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
# Abort if called from a web server
define('INSTALLDIR', realpath(dirname(__FILE__) . '/..'));
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$helptext = <<<ENDOFHELP
fixup_utf8.php <maxdate> <maxid> <minid>
Fixup records in a database that stored the data incorrectly (pre-0.7.4 for Laconica).
ENDOFHELP;
require_once INSTALLDIR.'/scripts/commandline.inc';
require_once 'DB.php';
class UTF8FixerUpper
{
var $dbl = null;
var $dbu = null;
var $args = array();
function __construct($args)
{
$this->args = $args;
if (!empty($args['max_date'])) {
$this->max_date = strftime('%Y-%m-%d %H:%M:%S', strtotime($args['max_date']));
} else {
$this->max_date = strftime('%Y-%m-%d %H:%M:%S', time());
}
$this->dbl = $this->doConnect('latin1');
if (empty($this->dbl)) {
return;
}
$this->dbu = $this->doConnect('utf8');
if (empty($this->dbu)) {
return;
}
}
function doConnect($charset)
{
$db = DB::connect(common_config('db', 'database'),
array('persistent' => false));
if (PEAR::isError($db)) {
echo "ERROR: " . $db->getMessage() . "\n";
return NULL;
}
$conn = $db->connection;
$succ = mysqli_set_charset($conn, $charset);
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if (!$succ) {
echo "ERROR: couldn't set charset\n";
$db->disconnect();
return NULL;
}
$result = $db->autoCommit(true);
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if (PEAR::isError($result)) {
echo "ERROR: " . $result->getMessage() . "\n";
$db->disconnect();
return NULL;
}
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return $db;
}
function fixup()
{
$this->fixupNotices($this->args['max_notice'],
$this->args['min_notice']);
$this->fixupProfiles();
$this->fixupGroups();
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$this->fixupMessages();
}
function fixupNotices($max_id, $min_id) {
// Do a separate DB connection
$sth = $this->dbu->prepare("UPDATE notice SET content = UNHEX(?), rendered = UNHEX(?) WHERE id = ?");
if (PEAR::isError($sth)) {
echo "ERROR: " . $sth->getMessage() . "\n";
return;
}
$sql = 'SELECT id, content, rendered FROM notice ' .
'WHERE LENGTH(content) != CHAR_LENGTH(content) '.
'AND modified < "'.$this->max_date.'" ';
if (!empty($max_id)) {
$sql .= ' AND id <= ' . $max_id;
}
if (!empty($min_id)) {
$sql .= ' AND id >= ' . $min_id;
}
$sql .= ' ORDER BY id DESC';
$rn = $this->dbl->query($sql);
if (PEAR::isError($rn)) {
echo "ERROR: " . $rn->getMessage() . "\n";
return;
}
echo "Number of rows: " . $rn->numRows() . "\n";
$notice = array();
while (DB_OK == $rn->fetchInto($notice)) {
$id = ($notice[0])+0;
$content = bin2hex($notice[1]);
$rendered = bin2hex($notice[2]);
echo "$id...";
$result =& $this->dbu->execute($sth, array($content, $rendered, $id));
if (PEAR::isError($result)) {
echo "ERROR: " . $result->getMessage() . "\n";
continue;
}
$cnt = $this->dbu->affectedRows();
if ($cnt != 1) {
echo "ERROR: 0 rows affected\n";
continue;
}
$notice = Notice::staticGet('id', $id);
$notice->decache();
$notice->free();
echo "OK\n";
}
}
function fixupProfiles()
{
// Do a separate DB connection
$sth = $this->dbu->prepare("UPDATE profile SET ".
"fullname = UNHEX(?),".
"location = UNHEX(?), ".
"bio = UNHEX(?) ".
"WHERE id = ?");
if (PEAR::isError($sth)) {
echo "ERROR: " . $sth->getMessage() . "\n";
return;
}
$sql = 'SELECT id, fullname, location, bio FROM profile ' .
'WHERE (LENGTH(fullname) != CHAR_LENGTH(fullname) '.
'OR LENGTH(location) != CHAR_LENGTH(location) '.
'OR LENGTH(bio) != CHAR_LENGTH(bio)) '.
'AND modified < "'.$this->max_date.'" '.
' ORDER BY modified DESC';
$rn = $this->dbl->query($sql);
if (PEAR::isError($rn)) {
echo "ERROR: " . $rn->getMessage() . "\n";
return;
}
echo "Number of rows: " . $rn->numRows() . "\n";
$profile = array();
while (DB_OK == $rn->fetchInto($profile)) {
$id = ($profile[0])+0;
$fullname = bin2hex($profile[1]);
$location = bin2hex($profile[2]);
$bio = bin2hex($profile[3]);
echo "$id...";
$result =& $this->dbu->execute($sth, array($fullname, $location, $bio, $id));
if (PEAR::isError($result)) {
echo "ERROR: " . $result->getMessage() . "\n";
continue;
}
$cnt = $this->dbu->affectedRows();
if ($cnt != 1) {
echo "ERROR: 0 rows affected\n";
continue;
}
$profile = Profile::staticGet('id', $id);
$profile->decache();
$profile->free();
echo "OK\n";
}
}
function fixupGroups()
{
// Do a separate DB connection
$sth = $this->dbu->prepare("UPDATE user_group SET ".
"fullname = UNHEX(?),".
"location = UNHEX(?), ".
"description = UNHEX(?) ".
"WHERE id = ?");
if (PEAR::isError($sth)) {
echo "ERROR: " . $sth->getMessage() . "\n";
return;
}
$sql = 'SELECT id, fullname, location, description FROM user_group ' .
'WHERE LENGTH(fullname) != CHAR_LENGTH(fullname) '.
'OR LENGTH(location) != CHAR_LENGTH(location) '.
'OR LENGTH(description) != CHAR_LENGTH(description) ';
'AND modified < "'.$this->max_date.'" '.
'ORDER BY modified DESC';
$rn = $this->dbl->query($sql);
if (PEAR::isError($rn)) {
echo "ERROR: " . $rn->getMessage() . "\n";
return;
}
echo "Number of rows: " . $rn->numRows() . "\n";
$user_group = array();
while (DB_OK == $rn->fetchInto($user_group)) {
$id = ($user_group[0])+0;
$fullname = bin2hex($user_group[1]);
$location = bin2hex($user_group[2]);
$description = bin2hex($user_group[3]);
echo "$id...";
$result =& $this->dbu->execute($sth, array($fullname, $location, $description, $id));
if (PEAR::isError($result)) {
echo "ERROR: " . $result->getMessage() . "\n";
continue;
}
$cnt = $this->dbu->affectedRows();
if ($cnt != 1) {
echo "ERROR: 0 rows affected\n";
continue;
}
$user_group = User_group::staticGet('id', $id);
$user_group->decache();
$user_group->free();
echo "OK\n";
}
}
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function fixupMessages() {
// Do a separate DB connection
$sth = $this->dbu->prepare("UPDATE message SET content = UNHEX(?), rendered = UNHEX(?) WHERE id = ?");
if (PEAR::isError($sth)) {
echo "ERROR: " . $sth->getMessage() . "\n";
return;
}
$sql = 'SELECT id, content, rendered FROM message ' .
'WHERE LENGTH(content) != CHAR_LENGTH(content) '.
'AND modified < "'.$this->max_date.'" '.
'ORDER BY id DESC';
$rn = $this->dbl->query($sql);
if (PEAR::isError($rn)) {
echo "ERROR: " . $rn->getMessage() . "\n";
return;
}
echo "Number of rows: " . $rn->numRows() . "\n";
$message = array();
while (DB_OK == $rn->fetchInto($message)) {
$id = ($message[0])+0;
$content = bin2hex($message[1]);
$rendered = bin2hex($message[2]);
echo "$id...";
$result =& $this->dbu->execute($sth, array($content, $rendered, $id));
if (PEAR::isError($result)) {
echo "ERROR: " . $result->getMessage() . "\n";
continue;
}
$cnt = $this->dbu->affectedRows();
if ($cnt != 1) {
echo "ERROR: 0 rows affected\n";
continue;
}
$message = Message::staticGet('id', $id);
$message->decache();
$message->free();
echo "OK\n";
}
}
}
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$max_date = (count($args) > 0) ? $args[0] : null;
$max_id = (count($args) > 1) ? $args[1] : null;
$min_id = (count($args) > 2) ? $args[2] : null;
$fixer = new UTF8FixerUpper(array('max_date' => $max_date,
'max_notice' => $max_id,
'min_notice' => $min_id));
$fixer->fixup();
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