gnu-social/plugins/TemplatePlugin.php
2009-08-25 18:29:56 -04:00

348 lines
9.3 KiB
PHP

<?php
/**
* Plugin to render old skool templates
*
* Captures rendered parts from the output buffer, passes them through a template file: tpl/index.html
* Adds an API method at index.php/template/update which lets you overwrite the template file
* Requires username/password and a single POST parameter called "template"
* The method is disabled unless the user is #1, the first user of the system
*
* @category Plugin
* @package StatusNet
* @author Brian Hendrickson <brian@megapump.com>
* @copyright 2009 Megapump, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://megapump.com/
*/
if (!defined('LACONICA')) {
exit(1);
}
define('TEMPLATEPLUGIN_VERSION', '0.1');
class TemplatePlugin extends Plugin {
var $blocks = array();
function __construct() {
parent::__construct();
}
// capture the RouterInitialized event
// and connect a new API method
// for updating the template
function onRouterInitialized( &$m ) {
$m->connect( 'template/update', array(
'action' => 'template',
));
}
// <%styles%>
// <%scripts%>
// <%search%>
// <%feeds%>
// <%description%>
// <%head%>
function onStartShowHead( &$act ) {
$this->clear_xmlWriter($act);
$act->extraHead();
$this->blocks['head'] = $act->xw->flush();
$act->showStylesheets();
$this->blocks['styles'] = $act->xw->flush();
$act->showScripts();
$this->blocks['scripts'] = $act->xw->flush();
$act->showFeeds();
$this->blocks['feeds'] = $act->xw->flush();
$act->showOpenSearch();
$this->blocks['search'] = $act->xw->flush();
$act->showDescription();
$this->blocks['description'] = $act->xw->flush();
return false;
}
// <%bodytext%>
function onStartShowContentBlock( &$act ) {
$this->clear_xmlWriter($act);
return true;
}
function onEndShowContentBlock( &$act ) {
$this->blocks['bodytext'] = $act->xw->flush();
}
// <%localnav%>
function onStartShowLocalNavBlock( &$act ) {
$this->clear_xmlWriter($act);
return true;
}
function onEndShowLocalNavBlock( &$act ) {
$this->blocks['localnav'] = $act->xw->flush();
}
// <%export%>
function onStartShowExportData( &$act ) {
$this->clear_xmlWriter($act);
return true;
}
function onEndShowExportData( &$act ) {
$this->blocks['export'] = $act->xw->flush();
}
// <%subscriptions%>
// <%subscribers%>
// <%groups%>
// <%statistics%>
// <%cloud%>
// <%groupmembers%>
// <%groupstatistics%>
// <%groupcloud%>
// <%popular%>
// <%groupsbyposts%>
// <%featuredusers%>
// <%groupsbymembers%>
function onStartShowSections( &$act ) {
global $action;
$this->clear_xmlWriter($act);
switch ($action) {
case "showstream":
$act->showSubscriptions();
$this->blocks['subscriptions'] = $act->xw->flush();
$act->showSubscribers();
$this->blocks['subscribers'] = $act->xw->flush();
$act->showGroups();
$this->blocks['groups'] = $act->xw->flush();
$act->showStatistics();
$this->blocks['statistics'] = $act->xw->flush();
$cloud = new PersonalTagCloudSection($act, $act->user);
$cloud->show();
$this->blocks['cloud'] = $act->xw->flush();
break;
case "showgroup":
$act->showMembers();
$this->blocks['groupmembers'] = $act->xw->flush();
$act->showStatistics();
$this->blocks['groupstatistics'] = $act->xw->flush();
$cloud = new GroupTagCloudSection($act, $act->group);
$cloud->show();
$this->blocks['groupcloud'] = $act->xw->flush();
break;
case "public":
$pop = new PopularNoticeSection($act);
$pop->show();
$this->blocks['popular'] = $act->xw->flush();
$gbp = new GroupsByPostsSection($act);
$gbp->show();
$this->blocks['groupsbyposts'] = $act->xw->flush();
$feat = new FeaturedUsersSection($act);
$feat->show();
$this->blocks['featuredusers'] = $act->xw->flush();
break;
case "groups":
$gbp = new GroupsByPostsSection($act);
$gbp->show();
$this->blocks['groupsbyposts'] = $act->xw->flush();
$gbm = new GroupsByMembersSection($act);
$gbm->show();
$this->blocks['groupsbymembers'] = $act->xw->flush();
break;
}
return false;
}
// <%logo%>
// <%nav%>
// <%notice%>
// <%noticeform%>
function onStartShowHeader( &$act ) {
$this->clear_xmlWriter($act);
$act->showLogo();
$this->blocks['logo'] = $act->xw->flush();
$act->showPrimaryNav();
$this->blocks['nav'] = $act->xw->flush();
$act->showSiteNotice();
$this->blocks['notice'] = $act->xw->flush();
if (common_logged_in()) {
$act->showNoticeForm();
} else {
$act->showAnonymousMessage();
}
$this->blocks['noticeform'] = $act->xw->flush();
return false;
}
// <%secondarynav%>
// <%licenses%>
function onStartShowFooter( &$act ) {
$this->clear_xmlWriter($act);
$act->showSecondaryNav();
$this->blocks['secondarynav'] = $act->xw->flush();
$act->showLicenses();
$this->blocks['licenses'] = $act->xw->flush();
return false;
}
// capture the EndHTML event
// and include the template
function onEndEndHTML($act) {
global $action, $tags;
// set the action and title values
$vars = array(
'action'=>$action,
'title'=>$act->title(). " - ". common_config('site', 'name')
);
// use the PHP template
// unless laconica config:
// $config['template']['mode'] = 'html';
if (!(common_config('template', 'mode') == 'html')) {
$tpl_file = $this->templateFolder() . '/index.php';
$tags = array_merge($vars,$this->blocks);
include $tpl_file;
return;
}
$tpl_file = $this->templateFolder() . '/index.html';
// read the static template
$output = file_get_contents( $tpl_file );
$tags = array();
// get a list of the <%tags%> in the template
$pattern='/<%([a-z]+)%>/';
if ( 1 <= preg_match_all( $pattern, $output, $found ))
$tags[] = $found;
// for each found tag, set its value from the rendered blocks
foreach( $tags[0][1] as $pos=>$tag ) {
if (isset($this->blocks[$tag]))
$vars[$tag] = $this->blocks[$tag];
// didn't find a block for the tag
elseif (!isset($vars[$tag]))
$vars[$tag] = '';
}
// replace the tags in the template
foreach( $vars as $key=>$val )
$output = str_replace( '<%'.$key.'%>', $val, $output );
echo $output;
return true;
}
function templateFolder() {
return 'tpl';
}
// catching the StartShowHTML event to halt the rendering
function onStartShowHTML( &$act ) {
$this->clear_xmlWriter($act);
return true;
}
// clear the xmlWriter
function clear_xmlWriter( &$act ) {
$act->xw->openMemory();
$act->xw->setIndent(true);
}
}
/**
* Action for updating the template remotely
*
* "template/update" -- a POST method that requires a single
* parameter "template", containing the new template code
*
* @category Plugin
* @package StatusNet
* @author Brian Hendrickson <brian@megapump.com>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://megapump.com/
*
*/
class TemplateAction extends Action
{
function prepare($args) {
parent::prepare($args);
return true;
}
function handle($args) {
parent::handle($args);
if (!isset($_SERVER['PHP_AUTH_USER'])) {
// not authenticated, show login form
header('WWW-Authenticate: Basic realm="StatusNet API"');
// cancelled the browser login form
$this->clientError(_('Authentication error!'), $code = 401);
} else {
$nick = $_SERVER['PHP_AUTH_USER'];
$pass = $_SERVER['PHP_AUTH_PW'];
// check username and password
$user = common_check_user($nick,$pass);
if ($user) {
// verify that user is admin
if (!($user->id == 1))
$this->clientError(_('only User #1 can update the template'), $code = 401);
// open the old template
$tpl_file = $this->templateFolder() . '/index.html';
$fp = fopen( $tpl_file, 'w+' );
// overwrite with the new template
fwrite($fp, $this->arg('template'));
fclose($fp);
header('HTTP/1.1 200 OK');
header('Content-type: text/plain');
print "Template Updated!";
} else {
// bad username and password
$this->clientError(_('Authentication error!'), $code = 401);
}
}
}
}
/**
* Function for retrieving a laconica display section
*
* requires one parameter, the name of the section
* section names are listed in the comments of the TemplatePlugin class
*
* @category Plugin
* @package StatusNet
* @author Brian Hendrickson <brian@megapump.com>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://megapump.com/
*
*/
function section($tagname) {
global $tags;
if (isset($tags[$tagname]))
return $tags[$tagname];
}