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[ticket/10605] Check for orphan privmsgs when deleting a user

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Also moved the hole code into a new function.

PHPBB3-10605
This commit is contained in:
Joas Schilling 2012-02-18 12:00:12 +01:00
parent 4b2690f792
commit 17f5c6bf71
2 changed files with 120 additions and 54 deletions
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116
phpBB/includes/functions_privmsgs.php
View file

@ -1083,6 +1083,122 @@ function delete_pm($user_id, $msg_ids, $folder_id)
return true;
}
/**
* Delete all PM(s) for a given user and delete the ones without references
*/
function delete_user_pms($user_id)
{
global $db, $user, $phpbb_root_path, $phpEx;
$user_id = (int) $user_id;
if (!$user_id)
{
return false;
}
// Get PM Information for later deleting
$sql = 'SELECT msg_id, author_id, folder_id, pm_unread, pm_new
FROM ' . PRIVMSGS_TO_TABLE . '
WHERE user_id = ' . $user_id . '
OR (author_id = ' . $user_id . '
AND folder_id = ' . PRIVMSGS_NO_BOX . ')';
$result = $db->sql_query($sql);
$undelivered_msg = $undelivered_user = $delete_rows = array();
$num_unread = $num_new = $num_deleted = 0;
while ($row = $db->sql_fetchrow($result))
{
if ($row['author_id'] == $user_id && $row['folder_id'] == PRIVMSGS_NO_BOX)
{
// Undelivered messages
$undelivered_msg[] = $row['msg_id'];
$undelivered_user[$row['user_id']][] = true;
}
$delete_rows[$row['msg_id']] = 1;
}
$db->sql_freeresult($result);
if (!sizeof($delete_rows))
{
return false;
}
$db->sql_transaction('begin');
if (sizeof($undelivered_msg))
{
$sql = 'DELETE FROM ' . PRIVMSGS_TABLE . '
WHERE ' . $db->sql_in_set('msg_id', $undelivered_msg);
$db->sql_query($sql);
}
foreach ($undelivered_user as $_user_id => $ary)
{
if ($_user_id == $user_id)
{
continue;
}
$sql = 'UPDATE ' . USERS_TABLE . '
SET user_new_privmsg = user_new_privmsg - ' . sizeof($ary) . ',
user_unread_privmsg = user_unread_privmsg - ' . sizeof($ary) . '
WHERE user_id = ' . $_user_id;
$db->sql_query($sql);
}
// Delete private message data
$sql = 'DELETE FROM ' . PRIVMSGS_TO_TABLE . "
WHERE user_id = $user_id
AND " . $db->sql_in_set('msg_id', array_keys($delete_rows));
$db->sql_query($sql);
// Now we have to check which messages we can delete completely
$sql = 'SELECT msg_id
FROM ' . PRIVMSGS_TO_TABLE . '
WHERE ' . $db->sql_in_set('msg_id', array_keys($delete_rows));
$result = $db->sql_query($sql);
while ($row = $db->sql_fetchrow($result))
{
unset($delete_rows[$row['msg_id']]);
}
$db->sql_freeresult($result);
$delete_ids = array_keys($delete_rows);
if (sizeof($delete_ids))
{
// Check if there are any attachments we need to remove
if (!function_exists('delete_attachments'))
{
include($phpbb_root_path . 'includes/functions_admin.' . $phpEx);
}
delete_attachments('message', $delete_ids, false);
$sql = 'DELETE FROM ' . PRIVMSGS_TABLE . '
WHERE ' . $db->sql_in_set('msg_id', $delete_ids);
$db->sql_query($sql);
}
// Set the remaining author id to anonymous - this way users are still able to read messages from users being removed
$sql = 'UPDATE ' . PRIVMSGS_TO_TABLE . '
SET author_id = ' . ANONYMOUS . '
WHERE author_id = ' . $user_id;
$db->sql_query($sql);
$sql = 'UPDATE ' . PRIVMSGS_TABLE . '
SET author_id = ' . ANONYMOUS . '
WHERE author_id = ' . $user_id;
$db->sql_query($sql);
$db->sql_transaction('commit');
return true;
}
/**
* Rebuild message header
*/

58
phpBB/includes/functions_user.php
View file

@ -528,62 +528,12 @@ function user_delete($mode, $user_id, $post_username = false)
WHERE session_user_id = ' . $user_id;
$db->sql_query($sql);
// Remove any undelivered mails...
$sql = 'SELECT msg_id, user_id
FROM ' . PRIVMSGS_TO_TABLE . '
WHERE author_id = ' . $user_id . '
AND folder_id = ' . PRIVMSGS_NO_BOX;
$result = $db->sql_query($sql);
$undelivered_msg = $undelivered_user = array();
while ($row = $db->sql_fetchrow($result))
// Clean the private messages tables from the user
if (!function_exists('delete_user_pms'))
{
$undelivered_msg[] = $row['msg_id'];
$undelivered_user[$row['user_id']][] = true;
}
$db->sql_freeresult($result);
if (sizeof($undelivered_msg))
{
$sql = 'DELETE FROM ' . PRIVMSGS_TABLE . '
WHERE ' . $db->sql_in_set('msg_id', $undelivered_msg);
$db->sql_query($sql);
}
$sql = 'DELETE FROM ' . PRIVMSGS_TO_TABLE . '
WHERE author_id = ' . $user_id . '
AND folder_id = ' . PRIVMSGS_NO_BOX;
$db->sql_query($sql);
// Delete all to-information
$sql = 'DELETE FROM ' . PRIVMSGS_TO_TABLE . '
WHERE user_id = ' . $user_id;
$db->sql_query($sql);
// Set the remaining author id to anonymous - this way users are still able to read messages from users being removed
$sql = 'UPDATE ' . PRIVMSGS_TO_TABLE . '
SET author_id = ' . ANONYMOUS . '
WHERE author_id = ' . $user_id;
$db->sql_query($sql);
$sql = 'UPDATE ' . PRIVMSGS_TABLE . '
SET author_id = ' . ANONYMOUS . '
WHERE author_id = ' . $user_id;
$db->sql_query($sql);
foreach ($undelivered_user as $_user_id => $ary)
{
if ($_user_id == $user_id)
{
continue;
}
$sql = 'UPDATE ' . USERS_TABLE . '
SET user_new_privmsg = user_new_privmsg - ' . sizeof($ary) . ',
user_unread_privmsg = user_unread_privmsg - ' . sizeof($ary) . '
WHERE user_id = ' . $_user_id;
$db->sql_query($sql);
include($phpbb_root_path . 'includes/functions_privmsgs.' . $phpEx);
}
delete_user_pms($user_id);
$db->sql_transaction('commit');