Wiki works on a basic level, lacks many handy features though...
git-svn-id: file:///home/shish/svn/shimmie2/trunk@130 7f39781d-f577-437e-ae19-be835c7a54ca
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173
contrib/wiki/main.php
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173
contrib/wiki/main.php
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<?php
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/**
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* Name: Simple Wiki
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* Author: Shish <webmaster@shishnet.org>
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* Link: http://trac.shishnet.org/shimmie2/
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* License: GPLv2
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* Description: A simple wiki, for those who don't want the
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* hugeness of mediawiki
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*/
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// WikiUpdateEvent {{{
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class WikiUpdateEvent extends Event {
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var $user;
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var $page;
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public function WikiUpdateEvent($user, $page) {
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$this->user = $user;
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$this->page = $page;
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}
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}
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// }}}
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class WikiPage { // {{{
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var $id;
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var $owner_id;
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var $owner_ip;
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var $date;
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var $title;
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var $revision;
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var $body;
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public function WikiPage($row=null) {
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if(!is_null($row)) {
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$this->id = $row['id'];
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$this->owner_id = $row['owner_id'];
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$this->owner_ip = $row['owner_ip'];
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$this->date = $row['date'];
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$this->title = $row['title'];
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$this->revision = $row['revision'];
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$this->body = $row['body'];
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}
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}
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public function get_owner() {
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global $database;
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return $database->get_user_by_id($this->owner_id);
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}
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} // }}}
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class Wiki extends Extension {
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// event handler {{{
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public function receive_event($event) {
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if(is_a($event, 'InitExtEvent')) {
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global $config;
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if($config->get_int("ext_wiki_version") < 1) {
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$this->install();
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}
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}
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if(is_a($event, 'PageRequestEvent') && ($event->page == "wiki")) {
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global $page;
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$page->add_side_block(new NavBlock());
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if(is_null($event->get_arg(0)) || strlen(trim($event->get_arg(0))) == 0) {
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$title = "Index";
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}
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else {
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$title = $event->get_arg(0);
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}
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$page->set_title(html_escape($title));
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$page->set_heading(html_escape($title));
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$content = $this->get_page($title);
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if(isset($_GET['save']) && $_GET['save'] == "on") {
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$title = $_POST['title'];
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$rev = $_POST['revision'];
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$body = $_POST['body'];
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$this->set_page($title, $rev, $body);
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$u_title = url_escape($title);
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global $page;
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$page->set_mode("redirect");
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$page->set_redirect(make_link("wiki/$u_title"));
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}
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else if(is_null($content)) {
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$blank = new WikiPage();
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$blank->title = $title;
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$page->add_main_block(new Block("Content", $this->create_edit_html($blank)));
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}
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else if(isset($_GET['edit']) && $_GET['edit'] == "on") {
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$page->add_main_block(new Block("Content", $this->create_edit_html($content)));
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}
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else {
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$page->add_main_block(new Block("Content", $this->create_display_html($content)));
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}
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}
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if(is_a($event, 'WikiUpdateEvent')) {
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$this->update_wiki_page($event->user, $event->page);
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}
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}
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// }}}
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// installer {{{
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protected function install() {
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global $database;
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global $config;
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$database->Execute("CREATE TABLE wiki_pages (
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id int(11) NOT NULL auto_increment,
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owner_id int(11) NOT NULL,
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owner_ip char(15) NOT NULL,
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date datetime default NULL,
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title varchar(255) NOT NULL,
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revision int(11) NOT NULL default 1,
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body text NOT NULL,
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PRIMARY KEY (id), UNIQUE (title, revision)
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)");
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$config->set_int("ext_wiki_version", 1);
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}
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// }}}
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// database {{{
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private function get_page($title, $revision=-1) {
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global $database;
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$row = $database->db->GetRow("
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SELECT *
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FROM wiki_pages
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WHERE title LIKE ?
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ORDER BY revision DESC", array($title));
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return ($row ? new WikiPage($row) : null);
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}
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private function set_page($title, $rev, $body) {
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global $database;
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global $user;
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// FIXME: deal with collisions
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$row = $database->Execute("
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INSERT INTO wiki_pages(owner_id, owner_ip, date, title, revision, body)
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VALUES (?, ?, now(), ?, ?, ?)", array($user->id, $_SERVER['REMOTE_ADDR'], $title, $rev, $body));
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}
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// }}}
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// html {{{
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private function create_edit_html($page) {
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$h_title = html_escape($page->title);
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$u_title = url_escape($page->title);
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$i_revision = int_escape($page->revision) + 1;
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return "
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<form action='".make_link("wiki/$u_title", "save=on")."' method='POST'>
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<input type='hidden' name='title' value='$h_title'>
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<input type='hidden' name='revision' value='$i_revision'>
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<textarea name='body' style='width: 100%' rows='20'>".html_escape($page->body)."</textarea>
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<br><input type='submit' value='Save'>
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</form>
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";
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}
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private function create_display_html($page) {
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$owner = $page->get_owner();
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$html = "";
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$html .= bbcode_to_html($page->body);
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$html .= "<hr>";
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$html .= "<p>Revision {$page->revision} by {$owner->name} at {$page->date} ";
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$html .= "[<a href='".make_link("wiki/{$page->title}", "edit=on")."'>edit</a>] ";
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return $html;
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}
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// }}}
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}
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add_event_listener(new Wiki());
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?>
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