/**
* make_backup
* バックアップを作成する
*
* @access public
* @param String $page ページ名
* @param Boolean $delete TRUE:バックアップを削除する
*
* @return Void
*/
function make_backup($page, $delete = FALSE)
{
global $cycle, $maxage;
global $do_backup, $del_backup;
// if (PKWK_READONLY || ! $do_backup) return;
if (auth::check_role('readonly') || !$do_backup) {
return;
}
if ($del_backup && $delete) {
_backup_delete($page);
return;
}
if (!is_page($page)) {
return;
}
$lastmod = _backup_get_filetime($page);
if ($lastmod == 0 || UTIME - $lastmod > 60 * 60 * $cycle) {
$backups = get_backup($page);
$count = count($backups) + 1;
// 直後に1件追加するので、(最大件数 - 1)を超える要素を捨てる
if ($count > $maxage) {
array_splice($backups, 0, $count - $maxage);
}
$strout = '';
foreach ($backups as $age => $data) {
// BugTrack/685 by UPK
//$strout .= PKWK_SPLITTER . ' ' . $data['time'] . "\n"; // Splitter format
$strout .= PKWK_SPLITTER . ' ' . $data['time'] . ' ' . $data['real'] . "\n";
// Splitter format
$strout .= join('', $data['data']);
unset($backups[$age]);
}
$strout = preg_replace("/([^\n])\n*\$/", "\$1\n", $strout);
// Escape 'lines equal to PKWK_SPLITTER', by inserting a space
$body = preg_replace('/^(' . preg_quote(PKWK_SPLITTER) . "\\s\\d+(\\s(\\d+)|))\$/", '$1 ', get_source($page));
// BugTrack/685 by UPK
// $body = PKWK_SPLITTER . ' ' . get_filetime($page) . "\n" . join('', $body);
$body = PKWK_SPLITTER . ' ' . get_filetime($page) . ' ' . UTIME . "\n" . join('', $body);
$body = preg_replace("/\n*\$/", "\n", $body);
$fp = _backup_fopen($page, 'wb') or die_message('Cannot open ' . htmlspecialchars(_backup_get_filename($page)) . '<br />Maybe permission is not writable or filename is too long');
_backup_fputs($fp, $strout);
_backup_fputs($fp, $body);
_backup_fclose($fp);
}
}
function plugin_revert_action()
{
global $vars, $post, $_revert_messages, $_msg_preview;
$pass = isset($post['pass']) ? $post['pass'] : FALSE;
$page = isset($vars['page']) ? $vars['page'] : '';
$age = isset($vars['age']) ? $vars['age'] : '';
if ($page === '') {
return;
}
if (PLUGIN_REVERT_USE_ADMIN_ONLY && $pass === FALSE) {
return array('msg' => 'revert plugin', 'body' => plugin_revert_auth($page, $age));
}
if (PLUGIN_REVERT_USE_ADMIN_ONLY && !pkwk_login($pass)) {
return array('msg' => 'revert plugin', 'body' => $_revert_messages['invalidpass']);
}
if ($age) {
// get_backup($page, $age)の形式だと最後の世代だけ取得できず全世代取得になる
$backups = get_backup($page);
if (empty($backups[$age]['data'])) {
return array('msg' => 'revert plugin', 'body' => 'Backup file not found.');
}
$revertdata = $backups[$age]['data'];
unset($backups);
} else {
$filename = DIFF_DIR . encode($page) . '.txt';
if (!file_exists($filename)) {
return array('msg' => 'revert plugin', 'body' => 'Diff file not found.');
}
$revertdata = array();
foreach (file($filename) as $line) {
if ($line[0] !== '+') {
$revertdata[] = substr($line, 1);
}
}
}
$vars['preview'] = $post['preview'] = 1;
$vars['msg'] = $post['msg'] = join('', $revertdata);
$vars['digest'] = $post['digest'] = is_page($page) ? md5(join('', get_source($page))) : FALSE;
$_msg_preview = $_revert_messages['caution'] . "<br />\n" . $_msg_preview;
return do_plugin_action('edit');
}
/**
* Get page created time
*
* PukiWiki API Extension
*
* @access public
* @static
* @param string $page pagename
* @return int timestamp
* @see get_filetime($page)
* @version $Id: v 1.0 2008-06-05 11:14:46 sonots $
*/
function get_filecreatetime($page)
{
if (_backup_file_exists($page)) {
// PukiWiki Trick
// This is not a created time exactly, but the closest time
$backup = get_backup($page, 1);
// 1st age
return $backup['time'];
} else {
return get_filetime($page);
}
}
function plugin_backup_get_list($page)
{
global $layout_pages;
//レイアウト部品の場合、スタイルを変更する
$is_layout = FALSE;
if (isset($layout_pages) && isset($layout_pages[$page])) {
$is_layout = TRUE;
}
$qm = get_qm();
$script = get_script_uri();
$r_page = rawurlencode($page);
$s_page = htmlspecialchars($page);
//バックアップ一覧へのリンクは、
//レイアウト部品の場合、編集リンクを表示する
$backuplist_link = $is_layout ? '<a href="' . h($script) . '?cmd=edit&page=' . $r_page . '">' . h($layout_pages[$page]) . 'を編集する</a>' : '<a href="' . h($script) . '?cmd=backup">' . $qm->m['plg_backup']['backuplist'] . '</a>';
$retval = array();
$retval[0] = '
<ul>
<li>
' . $backuplist_link . '
<ul>
';
$retval[1] = "\n";
$retval[2] = <<<EOD
</ul>
</li>
</ul>
EOD;
$backups = _backup_file_exists($page) ? get_backup($page) : array();
if (empty($backups)) {
$pagelink = $is_layout ? h($layout_pages[$page]) : make_pagelink($page);
$msg = str_replace('$1', $pagelink, $qm->m['plg_backup']['nobackup']);
$retval[1] .= ' <li>' . $msg . '</li>' . "\n";
return join('', $retval);
}
if (!PKWK_READONLY) {
$retval[1] .= ' <li><a href="' . $script . '?cmd=backup&action=delete&page=' . $r_page . '">';
$retval[1] .= str_replace('$1', $is_layout ? h($layout_pages[$page]) : $s_page, $qm->m['plg_backup']['title_backup_delete']);
$retval[1] .= '</a></li>' . "\n";
}
$href = $script . '?cmd=backup&page=' . $r_page . '&age=';
$_anchor_from = $_anchor_to = '';
foreach ($backups as $age => $data) {
if (!PLUGIN_BACKUP_DISABLE_BACKUP_RENDERING) {
$_anchor_from = '<a href="' . $href . $age . '">';
$_anchor_to = '</a>';
}
$date = format_date($data['time'], TRUE);
$retval[1] .= <<<EOD
<li>{$_anchor_from}{$age} {$date}{$_anchor_to}
[ <a href="{$href}{$age}&action=diff">{$qm->m['plg_backup']['diff']}</a>
| <a href="{$href}{$age}&action=nowdiff">{$qm->m['plg_backup']['nowdiff']}</a>
| <a href="{$href}{$age}&action=source">{$qm->m['plg_backup']['source']}</a>
]
</li>
EOD;
}
return join('', $retval);
}
function plugin_backup_convert()
{
global $vars, $script;
// global $_msg_backuplist, $_msg_diff, $_msg_nowdiff, $_msg_source, $_msg_nobackup;
// global $_title_backup_delete;
$page = isset($vars['page']) ? $vars['page'] : '';
check_readable($page, false);
$_msg_backuplist = _('List of Backups');
$_msg_diff = _('diff');
$_msg_nowdiff = _('diff current');
$_msg_source = _('source');
$_msg_nobackup = _('There are no backup(s) of $1.');
$_title_backup_delete = _('Deleting backup of $1');
// Get arguments
$with_label = TRUE;
$args = func_get_args();
while (isset($args[0])) {
switch (array_shift($args)) {
case 'default':
$diff_mode = 0;
break;
case 'nowdiff':
$diff_mode = 1;
break;
case 'visualdiff':
$diff_mode = 2;
break;
case 'label':
$with_label = TRUE;
break;
case 'nolabel':
$with_label = FALSE;
break;
}
}
$r_page = rawurlencode($page);
$s_page = htmlspecialchars($page);
$retval = array();
$date = get_date("m/d", get_filetime($page));
if ($with_label) {
$retval[0] = <<<EOD
<form class="center_form" action=""><div><label>Versions:
<select onchange="javascript:location.href=this[this.selectedIndex].value">
EOD;
$retval[1] = "\n";
$retval[2] = <<<EOD
</select></label></div>
</form>
EOD;
} else {
$retval[0] = <<<EOD
<form class="center_form" action=""><div>
<select onchange="javascript:location.href=this[this.selectedIndex].value">
EOD;
$retval[1] = "\n";
$retval[2] = <<<EOD
</select>
</div></form>
EOD;
}
$backups = _backup_file_exists($page) ? get_backup($page) : array();
if (count($backups) == 0) {
$retval[1] .= '<option value="' . get_page_uri($page) . '" selected="selected">' . _('->') . " {$date}(No.1)</option>\n";
return join('', $retval);
}
$maxcnt = count($backups) + 1;
$retval[1] .= '<option value="' . get_page_uri($page) . '" selected="selected">' . _('->') . " {$date}(No.{$maxcnt})</option>\n";
$backups = array_reverse($backups, True);
foreach ($backups as $age => $data) {
$time = isset($data['real']) ? $data['real'] : $data['time'];
$date = get_date('m/d', $time);
$href = $script . '?cmd=backup&page=' . $r_page . '&age=' . $age;
$retval[1] .= '<option value="' . $href;
switch ($diff_mode) {
case 2:
$retval[1] .= '&action=visualdiff';
break;
case 1:
$retval[1] .= '&action=nowdiff';
break;
}
$retval[1] .= '">' . $date . ' (No.' . $age . ')</option>' . "\n";
}
return join('', $retval);
}
function plugin_backup_get_list($page)
{
global $_msg_backuplist, $_msg_diff, $_msg_nowdiff, $_msg_source, $_msg_nobackup;
global $_title_backup_delete;
$script = get_script_uri();
$r_page = rawurlencode($page);
$s_page = htmlsc($page);
$retval = array();
$retval[0] = <<<EOD
<ul>
<li><a href="{$script}?cmd=backup">{$_msg_backuplist}</a>
<ul>
EOD;
$retval[1] = "\n";
$retval[2] = <<<EOD
</ul>
</li>
</ul>
EOD;
$backups = _backup_file_exists($page) ? get_backup($page) : array();
if (empty($backups)) {
$msg = str_replace('$1', make_pagelink($page), $_msg_nobackup);
$retval[1] .= ' <li>' . $msg . '</li>' . "\n";
return join('', $retval);
}
if (!PKWK_READONLY) {
$retval[1] .= ' <li><a href="' . $script . '?cmd=backup&action=delete&page=' . $r_page . '">';
$retval[1] .= str_replace('$1', $s_page, $_title_backup_delete);
$retval[1] .= '</a></li>' . "\n";
}
$href = $script . '?cmd=backup&page=' . $r_page . '&age=';
$_anchor_from = $_anchor_to = '';
foreach ($backups as $age => $data) {
if (!PLUGIN_BACKUP_DISABLE_BACKUP_RENDERING) {
$_anchor_from = '<a href="' . $href . $age . '">';
$_anchor_to = '</a>';
}
$date = format_date($data['time'], true);
$retval[1] .= <<<EOD
<li>{$_anchor_from}{$age} {$date}{$_anchor_to}
[ <a href="{$href}{$age}&action=diff">{$_msg_diff}</a>
| <a href="{$href}{$age}&action=nowdiff">{$_msg_nowdiff}</a>
| <a href="{$href}{$age}&action=source">{$_msg_source}</a>
]
</li>
EOD;
}
return join('', $retval);
}
function get_backup_max_age($page)
{
static $backup_page;
if (!isset($backup_page)) {
$backup_page = get_backup($page);
}
if (count($backup_page) == 0) {
return -1;
}
// 存在しない
ksort($backup_page);
return current(array_keys($backup_page, $backup_page[count($backup_page) - 1]));
}
/**
* 更新日時のバックアップデータの世代を確定する
* @static
*/
function get_backup_age($page, $update_time)
{
static $backup_page;
if (!isset($backup_page)) {
$backup_page = get_backup($page);
}
if (count($backup_page) == 0) {
return -1;
}
// 存在しない
// 初回バックアップ作成は、文書生成日時となる
$create_date = $backup_page[1]['time'];
if ($update_time == $create_date) {
return 1;
}
$match = -1;
foreach ($backup_page as $age => $val) {
if ($val['real'] == $update_time) {
$match = $age;
}
}
$match++;
// ヒットした次が書き込んだ内容(バックアップなため)
if ($age < $match) {
return 0;
}
// カレント(diffを読む)
if ($match > 0) {
return $match;
}
return -1;
// 存在しない(一致したものが存在しない)
}
