TemplatePlugin.php 0.1
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Brian
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plugins/TemplatePlugin.php
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344
plugins/TemplatePlugin.php
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<?php
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/**
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* Plugin to render old skool templates
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*
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* Captures rendered parts from the output buffer, passes them through a template file: tpl/index.html
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* Adds an API method at index.php/template/update which lets you overwrite the template file
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* Requires username/password and a single POST parameter called "template"
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* The method is disabled unless the user is #1, the first user of the system
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*
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* @category Plugin
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* @package Laconica
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* @author Brian Hendrickson <brian@megapump.com>
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* @copyright 2009 Megapump, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://megapump.com/
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*/
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if (!defined('LACONICA')) {
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exit(1);
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}
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define('TEMPLATEPLUGIN_VERSION', '0.1');
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class TemplatePlugin extends Plugin {
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var $blocks = array();
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function __construct() {
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parent::__construct();
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}
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// capture the RouterInitialized event
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// and connect a new API method
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// for updating the template
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function onRouterInitialized( &$m ) {
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$m->connect( 'template/update', array(
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'action' => 'template',
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));
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}
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// <%styles%>
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// <%scripts%>
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// <%search%>
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// <%feeds%>
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// <%description%>
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// <%head%>
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function onStartShowHead( &$act ) {
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$this->clear_xmlWriter($act);
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$act->extraHead();
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$this->blocks['head'] = $act->xw->flush();
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$act->showStylesheets();
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$this->blocks['styles'] = $act->xw->flush();
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$act->showScripts();
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$this->blocks['scripts'] = $act->xw->flush();
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$act->showFeeds();
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$this->blocks['feeds'] = $act->xw->flush();
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$act->showOpenSearch();
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$this->blocks['search'] = $act->xw->flush();
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$act->showDescription();
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$this->blocks['description'] = $act->xw->flush();
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return false;
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}
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// <%bodytext%>
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function onStartShowContentBlock( &$act ) {
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$this->clear_xmlWriter($act);
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return true;
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}
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function onEndShowContentBlock( &$act ) {
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$this->blocks['bodytext'] = $act->xw->flush();
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}
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// <%localnav%>
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function onStartShowLocalNavBlock( &$act ) {
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$this->clear_xmlWriter($act);
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return true;
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}
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function onEndShowLocalNavBlock( &$act ) {
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$this->blocks['localnav'] = $act->xw->flush();
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}
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// <%export%>
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function onStartShowExportData( &$act ) {
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$this->clear_xmlWriter($act);
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return true;
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}
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function onEndShowExportData( &$act ) {
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$this->blocks['export'] = $act->xw->flush();
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}
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// <%subscriptions%>
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// <%subscribers%>
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// <%groups%>
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// <%statistics%>
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// <%cloud%>
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// <%groupmembers%>
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// <%groupstatistics%>
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// <%groupcloud%>
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// <%popular%>
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// <%groupsbyposts%>
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// <%featuredusers%>
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// <%groupsbymembers%>
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function onStartShowSections( &$act ) {
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global $action;
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$this->clear_xmlWriter($act);
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switch ($action) {
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case "showstream":
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$act->showSubscriptions();
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$this->blocks['subscriptions'] = $act->xw->flush();
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$act->showSubscribers();
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$this->blocks['subscribers'] = $act->xw->flush();
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$act->showGroups();
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$this->blocks['groups'] = $act->xw->flush();
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$act->showStatistics();
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$this->blocks['statistics'] = $act->xw->flush();
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$cloud = new PersonalTagCloudSection($act, $act->user);
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$cloud->show();
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$this->blocks['cloud'] = $act->xw->flush();
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break;
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case "showgroup":
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$act->showMembers();
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$this->blocks['groupmembers'] = $act->xw->flush();
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$act->showStatistics();
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$this->blocks['groupstatistics'] = $act->xw->flush();
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$cloud = new GroupTagCloudSection($act, $act->group);
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$cloud->show();
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$this->blocks['groupcloud'] = $act->xw->flush();
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break;
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case "public":
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$pop = new PopularNoticeSection($act);
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$pop->show();
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$this->blocks['popular'] = $act->xw->flush();
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$gbp = new GroupsByPostsSection($act);
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$gbp->show();
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$this->blocks['groupsbyposts'] = $act->xw->flush();
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$feat = new FeaturedUsersSection($act);
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$feat->show();
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$this->blocks['featuredusers'] = $act->xw->flush();
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break;
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case "groups":
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$gbp = new GroupsByPostsSection($act);
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$gbp->show();
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$this->blocks['groupsbyposts'] = $act->xw->flush();
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$gbm = new GroupsByMembersSection($act);
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$gbm->show();
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$this->blocks['groupsbymembers'] = $act->xw->flush();
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break;
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}
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return false;
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}
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// <%logo%>
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// <%nav%>
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// <%notice%>
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// <%noticeform%>
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function onStartShowHeader( &$act ) {
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$this->clear_xmlWriter($act);
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$act->showLogo();
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$this->blocks['logo'] = $act->xw->flush();
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$act->showPrimaryNav();
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$this->blocks['nav'] = $act->xw->flush();
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$act->showSiteNotice();
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$this->blocks['notice'] = $act->xw->flush();
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if (common_logged_in()) {
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$act->showNoticeForm();
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} else {
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$act->showAnonymousMessage();
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}
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$this->blocks['noticeform'] = $act->xw->flush();
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return false;
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}
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// <%secondarynav%>
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// <%licenses%>
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function onStartShowFooter( &$act ) {
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$this->clear_xmlWriter($act);
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$act->showSecondaryNav();
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$this->blocks['secondarynav'] = $act->xw->flush();
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$act->showLicenses();
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$this->blocks['licenses'] = $act->xw->flush();
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return false;
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}
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// capture the EndHTML event
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// and include the template
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function onEndEndHTML($act) {
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global $action, $tags;
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// set the action and title values
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$vars = array(
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'action'=>$action,
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'title'=>$act->title(). " - ". common_config('site', 'name')
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);
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// use the PHP template
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// unless laconica config:
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// $config['template']['mode'] = 'html';
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if (!(common_config('template', 'mode') == 'html')) {
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$tpl_file = 'tpl/index.php';
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$tags = array_merge($vars,$this->blocks);
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include $tpl_file;
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return;
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}
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$tpl_file = 'tpl/index.html';
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// read the static template
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$output = file_get_contents( $tpl_file );
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$tags = array();
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// get a list of the <%tags%> in the template
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$pattern='/<%([a-z]+)%>/';
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if ( 1 <= preg_match_all( $pattern, $output, $found ))
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$tags[] = $found;
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// for each found tag, set its value from the rendered blocks
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foreach( $tags[0][1] as $pos=>$tag ) {
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if (isset($this->blocks[$tag]))
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$vars[$tag] = $this->blocks[$tag];
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// didn't find a block for the tag
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elseif (!isset($vars[$tag]))
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$vars[$tag] = '';
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}
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// replace the tags in the template
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foreach( $vars as $key=>$val )
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$output = str_replace( '<%'.$key.'%>', $val, $output );
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echo $output;
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return true;
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}
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// catching the StartShowHTML event to halt the rendering
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function onStartShowHTML( &$act ) {
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$this->clear_xmlWriter($act);
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return true;
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}
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// clear the xmlWriter
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function clear_xmlWriter( &$act ) {
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$act->xw->openMemory();
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$act->xw->setIndent(true);
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}
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}
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/**
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* Action for updating the template remotely
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*
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* "template/update" -- a POST method that requires a single
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* parameter "template", containing the new template code
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*
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* @category Plugin
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* @package Laconica
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* @author Brian Hendrickson <brian@megapump.com>
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://megapump.com/
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*
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*/
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class TemplateAction extends Action
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{
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function prepare($args) {
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parent::prepare($args);
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return true;
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}
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function handle($args) {
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parent::handle($args);
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if (!isset($_SERVER['PHP_AUTH_USER'])) {
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// not authenticated, show login form
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header('WWW-Authenticate: Basic realm="Laconica API"');
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// cancelled the browser login form
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$this->clientError(_('Authentication error!'), $code = 401);
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} else {
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$nick = $_SERVER['PHP_AUTH_USER'];
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$pass = $_SERVER['PHP_AUTH_PW'];
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// check username and password
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$user = common_check_user($nick,$pass);
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if ($user) {
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// verify that user is admin
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if (!($user->id == 1))
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$this->clientError(_('only User #1 can update the template'), $code = 401);
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// open the old template
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$tpl_file = 'tpl/index.html';
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$fp = fopen( $tpl_file, 'w+' );
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// overwrite with the new template
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fwrite($fp, $this->arg('template'));
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fclose($fp);
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header('HTTP/1.1 200 OK');
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header('Content-type: text/plain');
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print "Template Updated!";
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} else {
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// bad username and password
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$this->clientError(_('Authentication error!'), $code = 401);
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}
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}
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}
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}
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/**
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* Function for retrieving a laconica display section
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*
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* requires one parameter, the name of the section
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* section names are listed in the comments of the TemplatePlugin class
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*
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* @category Plugin
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* @package Laconica
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* @author Brian Hendrickson <brian@megapump.com>
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://megapump.com/
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*
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*/
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function section($tagname) {
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global $tags;
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if (isset($tags[$tagname]))
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return $tags[$tagname];
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}
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