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<?php
/**
* Site Pages provides interfaces to create standard content-static pages
* and to customize the front page layout and content.
*
* Formerly implemented as "external pages" and "custom index."
*
* @package SitePages
* @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU Public License version 2
* @author Curverider Ltd
* @copyright Curverider Ltd 2008-2010
* @link http://elgg.org/
*
* @todo
* Check for SQL injection problems.
* Force [[login_box]] in the logged out view.
* Make sure this stuff doesn't show up in search.
* Check entity keyword views against fullview. Force to FALSE?
* DRY up actions and views
* Implement sticky forms
* Use $entity->view to redirect to url of page.
* The tool settings view is probably not needed as it can be added to the front page edit tab.
* You can say pg/sitepages/edit|read/any_page_i_want and it will let you.
* Clean up and probably move the docs for keywords.
*/
/**
* Start the site pages plugin.
*/
function sitepages_init() {
require_once(dirname(__FILE__) . '/sitepages_functions.php');
global $CONFIG;
// register our subtype
run_function_once('sitepages_runonce');
// Register a page handler, so we can have nice URLs
register_page_handler('sitepages', 'sitepages_page_handler');
// Register a URL handler for external pages
register_entity_url_handler('sitepages_url', 'object', 'sitepages');
elgg_extend_view('footer/links', 'sitepages/footer_menu');
elgg_extend_view('metatags', 'sitepages/metatags');
// Replace the default index page if user has requested
if (get_plugin_setting('ownfrontpage', 'sitepages') == 'yes') {
register_plugin_hook('index', 'system', 'sitepages_custom_index');
}
// parse views for keywords
register_plugin_hook('display', 'view', 'sitepages_parse_view');
// register the views we want to parse for the keyword replacement
// right now this is just the custom front page, but we can
// expand it to the other pages later.
$CONFIG->sitepages_parse_views = array(
'sitepages/custom_frontpage'
);
// an example of how to register and respond to the get_keywords trigger
register_plugin_hook('get_keywords', 'sitepages', 'sitepages_keyword_hook');
// grab the list of keywords and their views from plugins
if ($keywords = trigger_plugin_hook('get_keywords', 'sitepages', NULL, array())) {
$CONFIG->sitepages_keywords = $keywords;
}
register_action("sitepages/add", FALSE, $CONFIG->pluginspath . "sitepages/actions/add.php");
register_action("sitepages/addfront", FALSE, $CONFIG->pluginspath . "sitepages/actions/addfront.php");
register_action("sitepages/addmeta", FALSE, $CONFIG->pluginspath . "sitepages/actions/addmeta.php");
register_action("sitepages/edit", FALSE, $CONFIG->pluginspath . "sitepages/actions/edit.php");
register_action("sitepages/delete", FALSE, $CONFIG->pluginspath . "sitepages/actions/delete.php");
}
/**
* Registers the sitepages subtype to the right class.
*
* @return bool
*/
function sitepages_runonce() {
return add_subtype('object', 'sitepages_page', 'ElggSitePage');
}
/**
* Override the index if requested.
*
* @return TRUE on override
*/
function sitepages_custom_index() {
// context is checked by the extended metatags view to print out its custom CSS
$context = get_context();
set_context('sitepages:front');
if ($contents = elgg_view('sitepages/custom_frontpage')) {
page_draw(FALSE, $contents);
set_context($context);
// return TRUE to tell index.php we've got its content right here.
return TRUE;
}
set_context($context);
// return NULL to pass this to next in chain, or back to standard index.php.
return NULL;
}
/**
* Page setup. Adds admin controls to the admin panel.
*/
function sitepages_pagesetup(){
if (get_context() == 'admin' && isadminloggedin()) {
global $CONFIG;
add_submenu_item(elgg_echo('sitepages'), $CONFIG->wwwroot . 'pg/sitepages/edit/front');
}
}
/**
*
* @param unknown_type $expage
* @return unknown_type
*
* //@todo is this needed?
*/
function sitepages_url($expage) {
global $CONFIG;
return $CONFIG->url . 'pg/sitepages/';
}
/**
* Serve out views for site pages.
*
* @param unknown_type $page
* @return unknown_type
*/
function sitepages_page_handler($page) {
global $CONFIG;
// for the owner block.
if ($logged_in_guid = get_loggedin_userid()) {
set_page_owner($logged_in_guid);
}
// sanity checking.
// on bad params we'll forward so people will bookmark the correct URLs
// @todo valid page names need to be pulled out into some sort of config var or admin option.
$default_page = 'About';
$action = isset($page[0]) ? $page[0] : FALSE;
$page_type = isset($page[1]) ? $page[1] : FALSE;
switch ($action) {
case 'edit':
$title = elgg_echo('sitepages');
$content = sitepages_get_edit_section_content($page_type);
break;
case 'read':
$title = elgg_echo('sitepages:' . strtolower($page_type));
$content = sitepages_get_page_content($page_type);
break;
default:
forward("{$CONFIG->site->url}pg/sitepages/read/$default_page");
break;
}
page_draw($title, $content);
}
/**
* Parses a registered view for supported keywords.
*
* @param unknown_type $hook
* @param unknown_type $entity_type
* @param unknown_type $return_value
* @param unknown_type $params
* @return string
*/
function sitepages_parse_view($hook, $entity_type, $return_value, $params) {
global $CONFIG;
// give me everything that is (string):(any thing that's not a ]) surrounded by [[ ]]s
$keyword_regex = '/\[\[([a-z]+):([^\]]+)\]\]/';
if (in_array($params['view'], $CONFIG->sitepages_parse_views)) {
$keywords = $CONFIG->sitepages_keywords;
$view_options = array(
'view' => $params['view']
);
foreach ($keywords as $keyword => $info) {
if (strpos($return_value, "[[$keyword]]") !== FALSE
&& ($content = elgg_view($info['view'], $view_options))) {
$return_value = str_replace("[[$keyword]]", $content, $return_value);
}
}
// parse for specialized tags:
// [[entity: key=value, key=value,etc]]
// [[view:viewname, vars_key=value,...]]
$return_value = preg_replace_callback($keyword_regex, 'sitepages_parse_view_match', $return_value);
}
return $return_value;
}
/**
* Register some default keywords.
*
* @param unknown_type $hook
* @param unknown_type $entity_type
* @param unknown_type $return_value
* @param unknown_type $params
* @return unknown_type
*/
function sitepages_keyword_hook($hook, $entity_type, $return_value, $params) {
$return_value['login_box'] = array(
'view' => 'account/forms/login',
'description' => elgg_echo('sitepages:keywords:login_box')
);
$return_value['site_stats'] = array(
'view' => 'this/doesnt/exist/yet',
'description' => elgg_echo('sitepages:keywords:site_stats')
);
return $return_value;
}
register_elgg_event_handler('init', 'system', 'sitepages_init');
register_elgg_event_handler('pagesetup', 'system', 'sitepages_pagesetup');
|
