Edit static pages commit

9 files changed, 328 insertions, 6 deletions

diff --git a/.gitmodules b/.gitmodules
index 73f90e0a..df07fdf3 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,9 @@
 [submodule "js/wPaint"]
 	path = js/wPaint
 	url = https://github.com/vichan-devel/wPaint.git
+	branch = master
+
+[submodule "inc/lib/parsedown"]
+	path = inc/lib/parsedown
+	url = https://github.com/vichan-devel/parsedown
+	branch = master
diff --git a/inc/config.php b/inc/config.php
index b6bc3b69..3fdb8d2f 100644
--- a/inc/config.php
+++ b/inc/config.php
@@ -1498,6 +1498,9 @@
 	$config['mod']['ban_appeals'] = MOD;
 	// View the recent posts page
 	$config['mod']['recent'] = MOD;
+	// Create pages
+	$config['mod']['edit_pages'] = MOD;
+	$config['pages_max'] = 10;
 
 	// Config editor permissions
 	$config['mod']['config'] = array();
@@ -1702,3 +1705,6 @@
 
 	// Use CAPTCHA for reports?
 	$config['report_captcha'] = false;
+
+	// Allowed HTML tags in ?/edit_pages.
+	$config['allowed_html'] = 'a[href|title],p,br,li,ol,ul,strong,em,u,h2,b,i,tt,div,img[src|alt|title],hr';
diff --git a/inc/functions.php b/inc/functions.php
index 378e40b3..7970d05a 100755
--- a/inc/functions.php
+++ b/inc/functions.php
@@ -20,6 +20,7 @@ require_once 'inc/events.php';
 require_once 'inc/api.php';
 require_once 'inc/mod/auth.php';
 require_once 'inc/polyfill.php';
+//require_once 'inc/lib/parsedown/Parsedown.php'; // we don't need that right now, do we?
 
 if (!extension_loaded('gettext')) {
 	require_once 'inc/lib/gettext/gettext.inc';
@@ -2739,3 +2740,45 @@ function link_for($post, $page50 = false, $foreignlink = false, $thread = false)
 
 	return sprintf($tpl, $id, $slug);
 }
+
+function prettify_textarea($s){
+	return str_replace("\t", '	', str_replace("\n", '
', htmlentities($s)));
+}
+
+class HTMLPurifier_URIFilter_NoExternalImages extends HTMLPurifier_URIFilter {
+	public $name = 'NoExternalImages';
+	public function filter(&$uri, $c, $context) {
+		global $config;
+		$ct = $context->get('CurrentToken');
+
+		if (!$ct || $ct->name !== 'img') return true;
+
+		if (!isset($uri->host) && !isset($uri->scheme)) return true;
+
+		if (!in_array($uri->scheme . '://' . $uri->host . '/', $config['allowed_offsite_urls'])) {
+			error('No off-site links in board announcement images.');
+		}
+
+		return true;
+	}
+}
+
+function purify_html($s) {
+	global $config;
+
+	$c = HTMLPurifier_Config::createDefault();
+	$c->set('HTML.Allowed', $config['allowed_html']);
+	$uri = $c->getDefinition('URI');
+	$uri->addFilter(new HTMLPurifier_URIFilter_NoExternalImages(), $c);
+	$purifier = new HTMLPurifier($c);
+	$clean_html = $purifier->purify($s);
+	return $clean_html;
+}
+
+function markdown($s) {
+	$pd = new Parsedown();
+	$pd->setMarkupEscaped(true);
+	$pd->setimagesEnabled(false);
+
+	return $pd->text($s);
+}
diff --git a/inc/mod/pages.php b/inc/mod/pages.php
index ca12eaf1..328380d8 100644
--- a/inc/mod/pages.php
+++ b/inc/mod/pages.php
@@ -2628,6 +2628,167 @@ function mod_theme_rebuild($theme_name) {
 	));
 }
 
+// This needs to be done for `secure` CSRF prevention compatibility, otherwise the $board will be read in as the token if editing global pages.
+function delete_page_base($page = '', $board = false) {
+	global $config, $mod;
+
+	if (empty($board))
+		$board = false;
+
+	if (!$board && $mod['boards'][0] !== '*')
+		error($config['error']['noaccess']);
+
+	if (!hasPermission($config['mod']['edit_pages'], $board))
+		error($config['error']['noaccess']);
+
+	if ($board !== FALSE && !openBoard($board))
+		error($config['error']['noboard']);
+
+	if ($board) {
+		$query = prepare('DELETE FROM ``pages`` WHERE `board` = :board AND `name` = :name');
+		$query->bindValue(':board', ($board ? $board : NULL));
+	} else {
+		$query = prepare('DELETE FROM ``pages`` WHERE `board` IS NULL AND `name` = :name');
+	}
+	$query->bindValue(':name', $page);
+	$query->execute() or error(db_error($query));
+
+	header('Location: ?/edit_pages' . ($board ? ('/' . $board) : ''), true, $config['redirect_http']);
+}
+
+function mod_delete_page($page = '') {
+	delete_page_base($page);
+}
+
+function mod_delete_page_board($page = '', $board = false) {
+	delete_page_base($page, $board);
+}
+
+function mod_edit_page($id) {
+	global $config, $mod, $board;
+
+	$query = prepare('SELECT * FROM ``pages`` WHERE `id` = :id');
+	$query->bindValue(':id', $id);
+	$query->execute() or error(db_error($query));
+	$page = $query->fetch();
+	
+	if (!$page)
+		error(_('Could not find the page you are trying to edit.'));
+
+	if (!$page['board'] && $mod['boards'][0] !== '*')
+		error($config['error']['noaccess']);
+
+	if (!hasPermission($config['mod']['edit_pages'], $page['board']))
+		error($config['error']['noaccess']);
+
+	if ($page['board'] && !openBoard($page['board']))
+		error($config['error']['noboard']);
+
+	if (isset($_POST['method'], $_POST['content'])) {
+		$content = $_POST['content'];
+		$method = $_POST['method'];
+		$page['type'] = $method;
+			
+		if (!in_array($method, array('markdown', 'html', 'infinity')))
+			error(_('Unrecognized page markup method.'));
+	
+		switch ($method) {
+			case 'markdown': 
+				$write = markdown($content);
+				break;
+			case 'html':
+				if (hasPermission($config['mod']['rawhtml'])) {
+					$write = $content;
+				} else {
+					$write = purify_html($content);
+				}
+				break;
+			case 'infinity':
+				$c = $content;
+				markup($content);
+				$write = $content;
+				$content = $c;
+		}
+
+		if (!isset($write) or !$write)
+			error(_('Failed to mark up your input for some reason...'));
+
+		$query = prepare('UPDATE ``pages`` SET `type` = :method, `content` = :content WHERE `id` = :id');
+		$query->bindValue(':method', $method);
+		$query->bindValue(':content', $content);
+		$query->bindValue(':id', $id);
+		$query->execute() or error(db_error($query));
+
+		$fn = ($board['uri'] ? ($board['uri'] . '/') : '') . $page['name'] . '.html';
+		$body = "<div class='ban'>$write</div>";
+		$html = Element('page.html', array('config' => $config, 'body' => $body, 'title' => utf8tohtml($page['title'])));
+		file_write($fn, $html);
+	}
+
+	if (!isset($content)) {
+		$query = prepare('SELECT `content` FROM ``pages`` WHERE `id` = :id');
+		$query->bindValue(':id', $id);
+		$query->execute() or error(db_error($query));
+		$content = $query->fetchColumn();
+	}
+	
+	mod_page(sprintf(_('Editing static page: %s'), $page['name']), 'mod/edit_page.html', array('page' => $page, 'token' => make_secure_link_token("edit_page/$id"), 'content' => prettify_textarea($content), 'board' => $board));
+}
+
+function mod_pages($board = false) {
+	global $config, $mod, $pdo;
+
+	if (empty($board))
+		$board = false;
+
+	if (!$board && $mod['boards'][0] !== '*')
+		error($config['error']['noaccess']);
+
+	if (!hasPermission($config['mod']['edit_pages'], $board))
+		error($config['error']['noaccess']);
+
+	if ($board !== FALSE && !openBoard($board))
+		error($config['error']['noboard']);
+
+	if ($board) {
+		$query = prepare('SELECT * FROM ``pages`` WHERE `board` = :board');
+		$query->bindValue(':board', $board);
+	} else {
+		$query = query('SELECT * FROM ``pages`` WHERE `board` IS NULL');
+	}
+	$query->execute() or error(db_error($query));
+	$pages = $query->fetchAll(PDO::FETCH_ASSOC);
+
+	if (isset($_POST['page'])) {
+		if ($board and sizeof($pages) > $config['pages_max'])
+			error(sprintf(_('Sorry, this site only allows %d pages per board.'), $config['pages_max']));
+
+		if (!preg_match('/^[a-z0-9]{1,255}$/', $_POST['page']))
+			error(_('Page names must be < 255 chars and may only contain lowercase letters A-Z and digits 1-9.'));
+
+		foreach ($pages as $i => $p) {
+			if ($_POST['page'] === $p['name'])
+				error(_('Refusing to create a new page with the same name as an existing one.'));
+		}
+
+		$title = ($_POST['title'] ? $_POST['title'] : NULL);
+
+		$query = prepare('INSERT INTO ``pages``(board, title, name) VALUES(:board, :title, :name)');
+		$query->bindValue(':board', ($board ? $board : NULL));
+		$query->bindValue(':title', $title);
+		$query->bindValue(':name', $_POST['page']);
+		$query->execute() or error(db_error($query));
+
+		$pages[] = array('id' => $pdo->lastInsertId(), 'name' => $_POST['page'], 'board' => $board, 'title' => $title);
+	}
+
+	foreach ($pages as $i => &$p) {
+		$p['delete_token'] = make_secure_link_token('edit_pages/delete/' . $p['name'] . ($board ? ('/' . $board) : ''));
+	}
+
+	mod_page(_('Pages'), 'mod/pages.html', array('pages' => $pages, 'token' => make_secure_link_token('edit_pages' . ($board ? ('/' . $board) : '')), 'board' => $board));
+}
+
 function mod_debug_antispam() {
 	global $pdo, $config;
 	
@@ -2744,3 +2905,4 @@ function mod_debug_apc() {
 	
 	mod_page(_('Debug: APC'), 'mod/debug/apc.html', array('cached_vars' => $cached_vars));
 }
+
diff --git a/install.sql b/install.sql
index 024cb349..720e4ed5 100644
--- a/install.sql
+++ b/install.sql
@@ -245,7 +245,7 @@ CREATE TABLE IF NOT EXISTS `search_queries` (
   `ip` varchar(39) NOT NULL,
   `time` int(11) NOT NULL,
   `query` text NOT NULL
-) ENGINE=MyISAM DEFAULT CHARSET=utf8;
+) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4;
 
 -- --------------------------------------------------------
 
@@ -297,6 +297,24 @@ CREATE TABLE IF NOT EXISTS `ban_appeals` (
   KEY `ban_id` (`ban_id`)
 ) ENGINE=MyISAM  DEFAULT CHARSET=utf8mb4 AUTO_INCREMENT=1 ;
 
+-- --------------------------------------------------------
+
+--
+-- Table structure for table `pages`
+--
+
+CREATE TABLE `pages` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `board` varchar(255) DEFAULT NULL,
+  `name` varchar(255) NOT NULL,
+  `title` varchar(255) DEFAULT NULL,
+  `type` varchar(255) DEFAULT NULL,
+  `content` text,
+  PRIMARY KEY (`id`),
+  UNIQUE KEY `u_pages` (`name`,`board`)
+) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4;
+
+>>>>>>> 12fa8ec... Edit static pages commit
 /*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
 /*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
 /*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
diff --git a/mod.php b/mod.php
index a6ff00cf..fbe679ac 100644
--- a/mod.php
+++ b/mod.php
@@ -33,11 +33,19 @@ $pages = array(
 	
 	'/log'					=> 'log',			// modlog
 	'/log/(\d+)'				=> 'log',			// modlog
-	'/log:([^/]+)'				=> 'user_log',			// modlog
-	'/log:([^/]+)/(\d+)'			=> 'user_log',			// modlog
-	'/news'					=> 'secure_POST news',		// view news
-	'/news/(\d+)'				=> 'secure_POST news',		// view news
-	'/news/delete/(\d+)'			=> 'secure news_delete',	// delete from news
+	'/log:([^/:]+)'				=> 'user_log',			// modlog
+	'/log:([^/:]+)/(\d+)'			=> 'user_log',			// modlog
+	'/log:b:([^/]+)'			=> 'board_log',			// modlog
+	'/log:b:([^/]+)/(\d+)'			=> 'board_log',			// modlog
+
+	'/edit_news'				=> 'secure_POST news',		// view news
+	'/edit_news/(\d+)'			=> 'secure_POST news',		// view news
+	'/edit_news/delete/(\d+)'		=> 'secure news_delete',	// delete from news
+
+	'/edit_pages(?:/?(\%b)?)'		=> 'secure_POST pages',
+	'/edit_page/(\d+)'			=> 'secure_POST edit_page',
+	'/edit_pages/delete/([a-z0-9]+)'	=> 'secure delete_page',
+	'/edit_pages/delete/([a-z0-9]+)/(\%b)'	=> 'secure delete_page_board',
 	
 	'/noticeboard'				=> 'secure_POST noticeboard',	// view noticeboard
 	'/noticeboard/(\d+)'			=> 'secure_POST noticeboard',	// view noticeboard
diff --git a/templates/mod/edit_page.html b/templates/mod/edit_page.html
new file mode 100644
index 00000000..3d132767
--- /dev/null
+++ b/templates/mod/edit_page.html
@@ -0,0 +1,29 @@
+<div style="text-align:center">
+<form method="POST">
+	<input name="token" value="{{ token }}" type="hidden">
+	<table>
+		<tr>
+		<th>{% trans %}Markup method{% endtrans %}
+			{% set allowed_html = config.allowed_html %}
+			{% trans %}<p class="unimportant">"markdown" is provided by <a href="http://parsedown.org/">parsedown</a>. Note: images disabled.</p>
+			<p class="unimportant">"html" allows the following tags:<br/>{{ allowed_html }}</p>
+			<p class="unimportant">"infinity" is the same as what is used in posts.</p>
+			<p class="unimportant">This page will not convert between formats,<br/>choose it once or do the conversion yourself!</p>{% endtrans %}
+		</th>
+		<td>
+			<select name="method">
+				{% for markup in ['markdown', 'html', 'infinity'] %}
+				<option value="{{ markup }}" {% if page.type == markup %}selected{% endif %}>{{ markup }}</option>
+				{% endfor %}
+			</select>
+		</td></tr>
+		<tr><th>{% trans %}Page content{% endtrans %}
+		<br/>
+		<span class="unimportant">{% trans %}Page will appear at:{% endtrans %} 
+		{% if board %} <a href="/{{ board.uri }}/{{ page.name }}.html">{{ config.domain }}/{{ board.uri }}/{{ page.name }}.html</a>
+		{% else %} <a href="/{{ page.name }}.html">{{ config.site }}/{{ page.name }}.html</a>
+		{% endif %}</span></th><td><textarea name="content" style="height:500px;width:500px">{{content}}</textarea></td><tr>
+	</table>
+	<input type="submit" value="Save page">
+</form>
+</div>
diff --git a/templates/mod/pages.html b/templates/mod/pages.html
new file mode 100644
index 00000000..c2395c02
--- /dev/null
+++ b/templates/mod/pages.html
@@ -0,0 +1,34 @@
+<script type="text/javascript" src="js/jquery.min.js"></script>
+<div style="text-align:center">
+<p class="unimportant">
+{% if board %}
+{% set page_max = config.pages_max %}
+{% trans %}This page allows you to create static pages for your board. The limit is {{ page_max }} pages per board. You will still have to link to your pages somewhere in your board, for example in a sticky or in the board's announcement. To make links in the board's announcement, use &lt;a&gt; HTML tags.{% endtrans %}
+{% else %}
+{% trans %}This page allows you to create static pages for your imageboard.{% endtrans %}
+{% endif %}
+<h2>{% trans %}Existing pages{% endtrans %}</h2>
+{% if pages %}
+<form>
+<table style="margin:auto">
+<tr><th>{% trans %}URL{% endtrans %}</th><th>{% trans %}Title{% endtrans %}</th><th>{% trans %}Edit{% endtrans %}</th><th>{% trans %}Delete{% endtrans %}</tr>
+{% for page in pages %}
+<tr><td>{{ page.name }}</td><td>{{ page.title }}</td><td><a href="?/edit_page/{{ page.id }}">{% trans %}Edit{% endtrans %}</a></td><td><a href="?/edit_pages/delete/{{ page.name }}{% if board %}/{{ board }}{% endif %}/{{ page.delete_token }}">{% trans %}Delete{% endtrans %}</a></td>
+{% endfor %}
+{% else %}
+<em>No pages yet!</em>
+{% endif %}
+</table>
+</form>
+<hr/>
+<h2>{% trans %}Create a new page{% endtrans %}</h2>
+<form method="POST">
+	<input type="hidden" name="token" value="{{ token }}">
+<table>
+<tr><th>{% trans %}URL{% endtrans %}</th><th>{% trans %}Title{% endtrans %}</th></tr>
+<tr><td><input type="text" name="page"></td><td><input type="text" name="title"></td>
+</table>	
+<input type="submit" value="{% trans %}Create{% endtrans %}">
+</form>
+
+</div>
diff --git a/tools/import_rules.php b/tools/import_rules.php
new file mode 100644
index 00000000..f583f035
--- /dev/null
+++ b/tools/import_rules.php
@@ -0,0 +1,16 @@
+<?php
+// This script imports rules.txt files from the old system into the new ``pages`` table.
+
+require dirname(__FILE__) . '/inc/cli.php';
+
+$boards = listBoards(TRUE);
+
+foreach ($boards as $i => $b) {
+	$rules = @file_get_contents($b.'/rules.txt');
+	if ($rules && !empty(trim($rules))) {
+		$query = prepare('INSERT INTO ``pages``(name, title, type, board, content) VALUES("rules", "Rules", "html", :board, :content)');
+		$query->bindValue(':board', $b);
+		$query->bindValue(':content', $rules);
+		$query->execute() or error(db_error($query));
+	} 
+}