--- pukiwiki/pukiwiki/plugin/diff.inc.php	2003/06/22 06:37:18	1.3
+++ pukiwiki/pukiwiki/plugin/diff.inc.php	2004/04/03 15:27:07	1.4
@@ -2,50 +2,114 @@
 /////////////////////////////////////////////////
 // PukiWiki - Yet another WikiWikiWeb clone.
 //
-// $Id: diff.inc.php,v 1.3 2003/06/22 06:37:18 arino Exp $
+// $Id: diff.inc.php,v 1.4 2004/04/03 15:27:07 arino Exp $
 //
 //ページの差分を表示する
 function plugin_diff_action()
 {
-	global $script,$get,$hr;
-	global $_msg_notfound,$_msg_goto,$_msg_addline,$_msg_delline,$_title_diff;
+	global $vars;
 	
-	check_readable($get['page'],true,true);
+	check_readable($vars['page'],true,true);
 	
-	$r_page = rawurlencode($get['page']);
-	$s_page = htmlspecialchars($get['page']);
-	$s_name = strip_bracket($s_page);
+	$action = array_key_exists('action',$vars) ? $vars['action'] : '';
 	
-	$msg = $_title_diff;
-	$body = '';
-	
-	if (is_page($get['page'])) {
-		$link = str_replace('$1',"<a href=\"$script?$r_page\">$s_name</a>",$_msg_goto);
-		$body = <<<EOD
-<ul>
- <li>$_msg_addline</li>
- <li>$_msg_delline</li>
- <li>$link</li>
-</ul>
-$hr
-EOD;
+	switch ($vars['action']) {
+	case 'delete':
+		$retval = plugin_diff_delete($vars['page']);
+		break;
+	default:
+		$retval = plugin_diff_view($vars['page']);
+		break;			
 	}
-	
-	if (file_exists(DIFF_DIR.encode($get['page']).'.txt')) {
-		$diffdata = htmlspecialchars(join('',file(DIFF_DIR.encode($get['page']).'.txt')));
+	return $retval;
+}
+// 差分を表示
+function plugin_diff_view($page)
+{
+	global $script,$hr;
+	global $_msg_notfound,$_msg_goto,$_msg_deleted,$_msg_addline,$_msg_delline,$_title_diff;
+	global $_title_diff_delete;
+	
+	$r_page = rawurlencode($page);
+	$s_page = htmlspecialchars($page);
+	
+	$menu = array(
+		"<li>$_msg_addline</li>",
+		"<li>$_msg_delline</li>"
+	);
+
+	if (is_page($page)) {
+		$menu[] = " <li>".str_replace('$1',"<a href=\"$script?$r_page\">$s_page</a>",$_msg_goto)."</li>";
+	} else {
+		$menu[] = " <li>".str_replace('$1',$s_page,$_msg_deleted)."</li>";
+	}
+
+	$delete_msg = '';
+	$filename = DIFF_DIR.encode($page).'.txt';
+	if (file_exists($filename)) {
+		$diffdata = htmlspecialchars(join('',file($filename)));
 		$diffdata = preg_replace('/^(\-)(.*)$/m','<span class="diff_removed"> $2</span>',$diffdata);
 		$diffdata = preg_replace('/^(\+)(.*)$/m','<span class="diff_added"> $2</span>',$diffdata);
-		$body .= "<pre>$diffdata</pre>\n";
+		$menu[] = "<li><a href=\"$script?cmd=diff&amp;action=delete&amp;page=$r_page\">" .
+			str_replace('$1',$s_page,$_title_diff_delete) . '</a></li>';
+		$msg = "<pre>$diffdata</pre>\n";
 	}
-	else if (is_page($get['page'])) {
-		$diffdata = trim(htmlspecialchars(join('',get_source($get['page']))));
-		$body .= "<pre><span class=\"diff_added\">$diffdata</span></pre>\n";
+	else if (is_page($page)) {
+		$diffdata = trim(htmlspecialchars(join('',get_source($page))));
+		$msg = "<pre><span class=\"diff_added\">$diffdata</span></pre>\n";
 	}
 	else {
-		$title = $s_name;
-		$body = $_msg_notfound;
+		return array('msg'=>$_title_diff, 'body'=>$_msg_notfound);
 	}
-	
-	return array('msg'=>$msg,'body'=>$body);
+
+	$menu = join("\n",$menu);
+	$body = <<<EOD
+<ul>
+$menu
+</ul>
+$hr
+EOD;
+
+	return array('msg'=>$_title_diff,'body'=>$body.$msg);
 }
+// バックアップを削除
+function plugin_diff_delete($page)
+{
+	error_reporting(E_ALL);
+
+	global $script,$post,$adminpass;
+	global $_title_diff_delete,$_msg_diff_deleted,$_msg_diff_delete;
+	global $_msg_diff_adminpass,$_btn_delete,$_msg_invalidpass;
+	
+	if (!is_pagename($page)) { return; }
+	$filename = DIFF_DIR.encode($page).'.txt'; 
+	if (!file_exists($filename)) { return; }
+
+	$s_page = htmlspecialchars($page);
+	$pass = array_key_exists('pass',$post) ? $post['pass'] : NULL;
+	
+	if (md5($pass) == $adminpass) {
+		unlink($filename);
+		return array(
+			'msg'  => $_title_diff_delete,
+			'body' => str_replace('$1',make_pagelink($page),$_msg_diff_deleted)
+		);
+	}
+	$body = ($pass === NULL) ? '' : "<p><strong>$_msg_invalidpass</strong></p>\n";
+
+	$msg_delete = str_replace('$1',make_pagelink($page),$_msg_diff_delete);
+	$body .= <<<EOD
+<p>$_msg_diff_adminpass</p>
+<form action="$script" method="post">
+ <div>
+  <input type="hidden" name="cmd" value="diff" />
+  <input type="hidden" name="page" value="$s_page" />
+  <input type="hidden" name="action" value="delete" />
+  <input type="password" name="pass" size="12" />
+  <input type="submit" name="ok" value="$_btn_delete" />
+ </div>
+</form>
+EOD;
+	return	array('msg'=>$_title_diff_delete,'body'=>$body);
+}	
 ?>