gnu-social/lib/action.php

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<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Base class for all actions (~views)
*
* PHP version 5
*
* LICENCE: This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category Action
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @author Sarven Capadisli <csarven@status.net>
* @copyright 2008 StatusNet, Inc.
* @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://status.net/
*/
if (!defined('STATUSNET') && !defined('LACONICA')) {
exit(1);
}
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require_once INSTALLDIR.'/lib/noticeform.php';
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require_once INSTALLDIR.'/lib/htmloutputter.php';
/**
* Base class for all actions
*
* This is the base class for all actions in the package. An action is
* more or less a "view" in an MVC framework.
*
* Actions are responsible for extracting and validating parameters; using
* model classes to read and write to the database; and doing ouput.
*
* @category Output
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @author Sarven Capadisli <csarven@status.net>
* @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://status.net/
*
* @see HTMLOutputter
*/
class Action extends HTMLOutputter // lawsuit
{
var $args;
/**
* Constructor
*
* Just wraps the HTMLOutputter constructor.
*
* @param string $output URI to output to, default = stdout
* @param boolean $indent Whether to indent output, default true
*
* @see XMLOutputter::__construct
* @see HTMLOutputter::__construct
*/
function __construct($output='php://output', $indent=null)
{
parent::__construct($output, $indent);
}
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/**
* For initializing members of the class.
*
* @param array $argarray misc. arguments
*
* @return boolean true
*/
function prepare($argarray)
{
$this->args =& common_copy_args($argarray);
return true;
}
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/**
* Show page, a template method.
*
* @return nothing
*/
function showPage()
{
if (Event::handle('StartShowHTML', array($this))) {
$this->startHTML();
Event::handle('EndShowHTML', array($this));
}
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if (Event::handle('StartShowHead', array($this))) {
$this->showHead();
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Event::handle('EndShowHead', array($this));
}
if (Event::handle('StartShowBody', array($this))) {
$this->showBody();
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Event::handle('EndShowBody', array($this));
}
if (Event::handle('StartEndHTML', array($this))) {
$this->endHTML();
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Event::handle('EndEndHTML', array($this));
}
}
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/**
* Show head, a template method.
*
* @return nothing
*/
function showHead()
{
// XXX: attributes (profile?)
$this->elementStart('head');
if (Event::handle('StartShowHeadElements', array($this))) {
$this->showTitle();
$this->showShortcutIcon();
$this->showStylesheets();
$this->showOpenSearch();
$this->showFeeds();
$this->showDescription();
$this->extraHead();
Event::handle('EndShowHeadElements', array($this));
}
$this->elementEnd('head');
}
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/**
* Show title, a template method.
*
* @return nothing
*/
function showTitle()
{
$this->element('title', null,
// TRANS: Page title. %1$s is the title, %2$s is the site name.
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sprintf(_("%1\$s - %2\$s"),
$this->title(),
common_config('site', 'name')));
}
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/**
* Returns the page title
*
* SHOULD overload
*
* @return string page title
*/
function title()
{
// TRANS: Page title for a page without a title set.
return _("Untitled page");
}
/**
* Show themed shortcut icon
*
* @return nothing
*/
function showShortcutIcon()
{
if (is_readable(INSTALLDIR . '/theme/' . common_config('site', 'theme') . '/favicon.ico')) {
$this->element('link', array('rel' => 'shortcut icon',
'href' => Theme::path('favicon.ico')));
} else {
$this->element('link', array('rel' => 'shortcut icon',
'href' => common_path('favicon.ico')));
}
if (common_config('site', 'mobile')) {
if (is_readable(INSTALLDIR . '/theme/' . common_config('site', 'theme') . '/apple-touch-icon.png')) {
$this->element('link', array('rel' => 'apple-touch-icon',
'href' => Theme::path('apple-touch-icon.png')));
} else {
$this->element('link', array('rel' => 'apple-touch-icon',
'href' => common_path('apple-touch-icon.png')));
}
}
}
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/**
* Show stylesheets
*
* @return nothing
*/
function showStylesheets()
{
if (Event::handle('StartShowStyles', array($this))) {
// Use old name for StatusNet for compatibility on events
if (Event::handle('StartShowStatusNetStyles', array($this)) &&
Event::handle('StartShowLaconicaStyles', array($this))) {
$this->primaryCssLink(null, 'screen, projection, tv, print');
Event::handle('EndShowStatusNetStyles', array($this));
Event::handle('EndShowLaconicaStyles', array($this));
}
if (Event::handle('StartShowUAStyles', array($this))) {
$this->comment('[if IE]><link rel="stylesheet" type="text/css" '.
'href="'.Theme::path('css/ie.css', 'base').'?version='.STATUSNET_VERSION.'" /><![endif]');
foreach (array(6,7) as $ver) {
if (file_exists(Theme::file('css/ie'.$ver.'.css', 'base'))) {
// Yes, IE people should be put in jail.
$this->comment('[if lte IE '.$ver.']><link rel="stylesheet" type="text/css" '.
'href="'.Theme::path('css/ie'.$ver.'.css', 'base').'?version='.STATUSNET_VERSION.'" /><![endif]');
}
}
$this->comment('[if IE]><link rel="stylesheet" type="text/css" '.
'href="'.Theme::path('css/ie.css', null).'?version='.STATUSNET_VERSION.'" /><![endif]');
Event::handle('EndShowUAStyles', array($this));
}
if (Event::handle('StartShowDesign', array($this))) {
$user = common_current_user();
if (empty($user) || $user->viewdesigns) {
$design = $this->getDesign();
if (!empty($design)) {
$design->showCSS($this);
}
}
Event::handle('EndShowDesign', array($this));
}
Event::handle('EndShowStyles', array($this));
if (common_config('custom_css', 'enabled')) {
$css = common_config('custom_css', 'css');
if (Event::handle('StartShowCustomCss', array($this, &$css))) {
if (trim($css) != '') {
$this->style($css);
}
Event::handle('EndShowCustomCss', array($this));
}
}
}
}
function primaryCssLink($mainTheme=null, $media=null)
{
// If the currently-selected theme has dependencies on other themes,
// we'll need to load their display.css files as well in order.
$theme = new Theme($mainTheme);
$baseThemes = $theme->getDeps();
foreach ($baseThemes as $baseTheme) {
$this->cssLink('css/display.css', $baseTheme, $media);
}
$this->cssLink('css/display.css', $mainTheme, $media);
}
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/**
* Show javascript headers
*
* @return nothing
*/
function showScripts()
{
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if (Event::handle('StartShowScripts', array($this))) {
if (Event::handle('StartShowJQueryScripts', array($this))) {
$this->script('jquery.min.js');
$this->script('jquery.form.js');
$this->script('jquery.cookie.js');
$this->inlineScript('if (typeof window.JSON !== "object") { $.getScript("'.common_path('js/json2.js').'"); }');
$this->script('jquery.joverlay.min.js');
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Event::handle('EndShowJQueryScripts', array($this));
}
if (Event::handle('StartShowStatusNetScripts', array($this)) &&
Event::handle('StartShowLaconicaScripts', array($this))) {
$this->script('xbImportNode.js');
$this->script('util.js');
$this->script('geometa.js');
// Frame-busting code to avoid clickjacking attacks.
$this->inlineScript('if (window.top !== window.self) { window.top.location.href = window.self.location.href; }');
Event::handle('EndShowStatusNetScripts', array($this));
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Event::handle('EndShowLaconicaScripts', array($this));
}
Event::handle('EndShowScripts', array($this));
}
}
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/**
* Show OpenSearch headers
*
* @return nothing
*/
function showOpenSearch()
{
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$this->element('link', array('rel' => 'search',
'type' => 'application/opensearchdescription+xml',
'href' => common_local_url('opensearch', array('type' => 'people')),
'title' => common_config('site', 'name').' People Search'));
$this->element('link', array('rel' => 'search', 'type' => 'application/opensearchdescription+xml',
'href' => common_local_url('opensearch', array('type' => 'notice')),
'title' => common_config('site', 'name').' Notice Search'));
}
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/**
* Show feed headers
*
* MAY overload
*
* @return nothing
*/
function showFeeds()
{
$feeds = $this->getFeeds();
if ($feeds) {
foreach ($feeds as $feed) {
$this->element('link', array('rel' => $feed->rel(),
'href' => $feed->url,
'type' => $feed->mimeType(),
'title' => $feed->title));
}
}
}
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/**
* Show description.
*
* SHOULD overload
*
* @return nothing
*/
function showDescription()
{
// does nothing by default
}
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/**
* Show extra stuff in <head>.
*
* MAY overload
*
* @return nothing
*/
function extraHead()
{
// does nothing by default
}
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/**
* Show body.
*
* Calls template methods
*
* @return nothing
*/
function showBody()
{
$this->elementStart('body', (common_current_user()) ? array('id' => $this->trimmed('action'),
'class' => 'user_in')
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: array('id' => $this->trimmed('action')));
$this->elementStart('div', array('id' => 'wrap'));
if (Event::handle('StartShowHeader', array($this))) {
$this->showHeader();
Event::handle('EndShowHeader', array($this));
}
$this->showCore();
if (Event::handle('StartShowFooter', array($this))) {
$this->showFooter();
Event::handle('EndShowFooter', array($this));
}
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$this->elementEnd('div');
$this->showScripts();
$this->elementEnd('body');
}
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/**
* Show header of the page.
*
* Calls template methods
*
* @return nothing
*/
function showHeader()
{
$this->elementStart('div', array('id' => 'header'));
$this->showLogo();
$this->showPrimaryNav();
if (Event::handle('StartShowSiteNotice', array($this))) {
$this->showSiteNotice();
Event::handle('EndShowSiteNotice', array($this));
}
if (common_logged_in()) {
$this->showNoticeForm();
} else {
$this->showAnonymousMessage();
}
$this->elementEnd('div');
}
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/**
* Show configured logo.
*
* @return nothing
*/
function showLogo()
{
$this->elementStart('address', array('id' => 'site_contact',
'class' => 'vcard'));
if (Event::handle('StartAddressData', array($this))) {
if (common_config('singleuser', 'enabled')) {
$url = common_local_url('showstream',
array('nickname' => common_config('singleuser', 'nickname')));
} else {
$url = common_local_url('public');
}
$this->elementStart('a', array('class' => 'url home bookmark',
'href' => $url));
if (common_config('site', 'logo') || file_exists(Theme::file('logo.png'))) {
$this->element('img', array('class' => 'logo photo',
'src' => (common_config('site', 'logo')) ? common_config('site', 'logo') : Theme::path('logo.png'),
'alt' => common_config('site', 'name')));
}
$this->text(' ');
$this->element('span', array('class' => 'fn org'), common_config('site', 'name'));
$this->elementEnd('a');
Event::handle('EndAddressData', array($this));
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}
$this->elementEnd('address');
}
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/**
* Show primary navigation.
*
* @return nothing
*/
function showPrimaryNav()
{
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$user = common_current_user();
$this->elementStart('dl', array('id' => 'site_nav_global_primary'));
// TRANS: DT element for primary navigation menu. String is hidden in default CSS.
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$this->element('dt', null, _('Primary site navigation'));
$this->elementStart('dd');
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$this->elementStart('ul', array('class' => 'nav'));
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if (Event::handle('StartPrimaryNav', array($this))) {
if ($user) {
// TRANS: Tooltip for main menu option "Personal"
$tooltip = _m('TOOLTIP', 'Personal profile and friends timeline');
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$this->menuItem(common_local_url('all', array('nickname' => $user->nickname)),
// TRANS: Main menu option when logged in for access to personal profile and friends timeline
_m('MENU', 'Personal'), $tooltip, false, 'nav_home');
// TRANS: Tooltip for main menu option "Account"
$tooltip = _m('TOOLTIP', 'Change your email, avatar, password, profile');
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$this->menuItem(common_local_url('profilesettings'),
// TRANS: Main menu option when logged in for access to user settings
_('Account'), $tooltip, false, 'nav_account');
// TRANS: Tooltip for main menu option "Services"
$tooltip = _m('TOOLTIP', 'Connect to services');
$this->menuItem(common_local_url('oauthconnectionssettings'),
// TRANS: Main menu option when logged in and connection are possible for access to options to connect to other services
_('Connect'), $tooltip, false, 'nav_connect');
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if ($user->hasRight(Right::CONFIGURESITE)) {
// TRANS: Tooltip for menu option "Admin"
$tooltip = _m('TOOLTIP', 'Change site configuration');
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$this->menuItem(common_local_url('siteadminpanel'),
// TRANS: Main menu option when logged in and site admin for access to site configuration
_m('MENU', 'Admin'), $tooltip, false, 'nav_admin');
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}
if (common_config('invite', 'enabled')) {
// TRANS: Tooltip for main menu option "Invite"
$tooltip = _m('TOOLTIP', 'Invite friends and colleagues to join you on %s');
$this->menuItem(common_local_url('invite'),
// TRANS: Main menu option when logged in and invitations are allowed for inviting new users
_m('MENU', 'Invite'),
sprintf($tooltip,
common_config('site', 'name')),
false, 'nav_invitecontact');
}
// TRANS: Tooltip for main menu option "Logout"
$tooltip = _m('TOOLTIP', 'Logout from the site');
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$this->menuItem(common_local_url('logout'),
// TRANS: Main menu option when logged in to log out the current user
_m('MENU', 'Logout'), $tooltip, false, 'nav_logout');
}
else {
if (!common_config('site', 'closed') && !common_config('site', 'inviteonly')) {
// TRANS: Tooltip for main menu option "Register"
$tooltip = _m('TOOLTIP', 'Create an account');
$this->menuItem(common_local_url('register'),
// TRANS: Main menu option when not logged in to register a new account
_m('MENU', 'Register'), $tooltip, false, 'nav_register');
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}
// TRANS: Tooltip for main menu option "Login"
$tooltip = _m('TOOLTIP', 'Login to the site');
// TRANS: Main menu option when not logged in to log in
$this->menuItem(common_local_url('login'),
_m('MENU', 'Login'), $tooltip, false, 'nav_login');
}
// TRANS: Tooltip for main menu option "Help"
$tooltip = _m('TOOLTIP', 'Help me!');
// TRANS: Main menu option for help on the StatusNet site
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$this->menuItem(common_local_url('doc', array('title' => 'help')),
_m('MENU', 'Help'), $tooltip, false, 'nav_help');
if ($user || !common_config('site', 'private')) {
// TRANS: Tooltip for main menu option "Search"
$tooltip = _m('TOOLTIP', 'Search for people or text');
// TRANS: Main menu option when logged in or when the StatusNet instance is not private
$this->menuItem(common_local_url('peoplesearch'),
_m('MENU', 'Search'), $tooltip, false, 'nav_search');
}
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Event::handle('EndPrimaryNav', array($this));
}
$this->elementEnd('ul');
$this->elementEnd('dd');
$this->elementEnd('dl');
}
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/**
* Show site notice.
*
* @return nothing
*/
function showSiteNotice()
{
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// Revist. Should probably do an hAtom pattern here
$text = common_config('site', 'notice');
if ($text) {
$this->elementStart('dl', array('id' => 'site_notice',
'class' => 'system_notice'));
// TRANS: DT element for site notice. String is hidden in default CSS.
$this->element('dt', null, _('Site notice'));
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$this->elementStart('dd', null);
$this->raw($text);
$this->elementEnd('dd');
$this->elementEnd('dl');
}
}
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/**
* Show notice form.
*
* MAY overload if no notice form needed... or direct message box????
*
* @return nothing
*/
function showNoticeForm()
{
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$notice_form = new NoticeForm($this);
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$notice_form->show();
}
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/**
* Show anonymous message.
*
* SHOULD overload
*
* @return nothing
*/
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function showAnonymousMessage()
{
// needs to be defined by the class
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}
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/**
* Show core.
*
* Shows local navigation, content block and aside.
*
* @return nothing
*/
function showCore()
{
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$this->elementStart('div', array('id' => 'core'));
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if (Event::handle('StartShowLocalNavBlock', array($this))) {
$this->showLocalNavBlock();
Event::handle('EndShowLocalNavBlock', array($this));
}
if (Event::handle('StartShowContentBlock', array($this))) {
$this->showContentBlock();
Event::handle('EndShowContentBlock', array($this));
}
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if (Event::handle('StartShowAside', array($this))) {
$this->showAside();
Event::handle('EndShowAside', array($this));
}
$this->elementEnd('div');
}
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/**
* Show local navigation block.
*
* @return nothing
*/
function showLocalNavBlock()
{
$this->elementStart('dl', array('id' => 'site_nav_local_views'));
// TRANS: DT element for local views block. String is hidden in default CSS.
$this->element('dt', null, _('Local views'));
$this->elementStart('dd');
$this->showLocalNav();
$this->elementEnd('dd');
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$this->elementEnd('dl');
}
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/**
* Show local navigation.
*
* SHOULD overload
*
* @return nothing
*/
function showLocalNav()
{
// does nothing by default
}
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/**
* Show content block.
*
* @return nothing
*/
function showContentBlock()
{
$this->elementStart('div', array('id' => 'content'));
$this->showPageTitle();
$this->showPageNoticeBlock();
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$this->elementStart('div', array('id' => 'content_inner'));
// show the actual content (forms, lists, whatever)
$this->showContent();
$this->elementEnd('div');
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$this->elementEnd('div');
}
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/**
* Show page title.
*
* @return nothing
*/
function showPageTitle()
{
$this->element('h1', null, $this->title());
}
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/**
* Show page notice block.
*
* Only show the block if a subclassed action has overrided
* Action::showPageNotice(), or an event handler is registered for
* the StartShowPageNotice event, in which case we assume the
* 'page_notice' definition list is desired. This is to prevent
* empty 'page_notice' definition lists from being output everywhere.
*
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* @return nothing
*/
function showPageNoticeBlock()
{
$rmethod = new ReflectionMethod($this, 'showPageNotice');
$dclass = $rmethod->getDeclaringClass()->getName();
if ($dclass != 'Action' || Event::hasHandler('StartShowPageNotice')) {
$this->elementStart('dl', array('id' => 'page_notice',
'class' => 'system_notice'));
// TRANS: DT element for page notice. String is hidden in default CSS.
$this->element('dt', null, _('Page notice'));
$this->elementStart('dd');
if (Event::handle('StartShowPageNotice', array($this))) {
$this->showPageNotice();
Event::handle('EndShowPageNotice', array($this));
}
$this->elementEnd('dd');
$this->elementEnd('dl');
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}
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}
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/**
* Show page notice.
*
* SHOULD overload (unless there's not a notice)
*
* @return nothing
*/
function showPageNotice()
{
}
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/**
* Show content.
*
* MUST overload (unless there's not a notice)
*
* @return nothing
*/
function showContent()
{
}
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/**
* Show Aside.
*
* @return nothing
*/
function showAside()
{
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$this->elementStart('div', array('id' => 'aside_primary',
'class' => 'aside'));
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if (Event::handle('StartShowExportData', array($this))) {
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$this->showExportData();
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Event::handle('EndShowExportData', array($this));
}
if (Event::handle('StartShowSections', array($this))) {
$this->showSections();
Event::handle('EndShowSections', array($this));
}
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$this->elementEnd('div');
}
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/**
* Show export data feeds.
*
* @return void
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*/
function showExportData()
{
$feeds = $this->getFeeds();
if ($feeds) {
$fl = new FeedList($this);
$fl->show($feeds);
}
}
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/**
* Show sections.
*
* SHOULD overload
*
* @return nothing
*/
function showSections()
{
// for each section, show it
}
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/**
* Show footer.
*
* @return nothing
*/
function showFooter()
{
$this->elementStart('div', array('id' => 'footer'));
$this->showSecondaryNav();
$this->showLicenses();
$this->elementEnd('div');
}
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/**
* Show secondary navigation.
*
* @return nothing
*/
function showSecondaryNav()
{
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$this->elementStart('dl', array('id' => 'site_nav_global_secondary'));
// TRANS: DT element for secondary navigation menu. String is hidden in default CSS.
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$this->element('dt', null, _('Secondary site navigation'));
$this->elementStart('dd', null);
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$this->elementStart('ul', array('class' => 'nav'));
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if (Event::handle('StartSecondaryNav', array($this))) {
$this->menuItem(common_local_url('doc', array('title' => 'help')),
// TRANS: Secondary navigation menu option leading to help on StatusNet.
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_('Help'));
$this->menuItem(common_local_url('doc', array('title' => 'about')),
// TRANS: Secondary navigation menu option leading to text about StatusNet site.
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_('About'));
$this->menuItem(common_local_url('doc', array('title' => 'faq')),
// TRANS: Secondary navigation menu option leading to Frequently Asked Questions.
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_('FAQ'));
$bb = common_config('site', 'broughtby');
if (!empty($bb)) {
$this->menuItem(common_local_url('doc', array('title' => 'tos')),
// TRANS: Secondary navigation menu option leading to Terms of Service.
_('TOS'));
}
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$this->menuItem(common_local_url('doc', array('title' => 'privacy')),
// TRANS: Secondary navigation menu option leading to privacy policy.
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_('Privacy'));
$this->menuItem(common_local_url('doc', array('title' => 'source')),
// TRANS: Secondary navigation menu option.
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_('Source'));
$this->menuItem(common_local_url('version'),
// TRANS: Secondary navigation menu option leading to version information on the StatusNet site.
_('Version'));
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$this->menuItem(common_local_url('doc', array('title' => 'contact')),
// TRANS: Secondary navigation menu option leading to contact information on the StatusNet site.
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_('Contact'));
$this->menuItem(common_local_url('doc', array('title' => 'badge')),
_('Badge'));
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Event::handle('EndSecondaryNav', array($this));
}
$this->elementEnd('ul');
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$this->elementEnd('dd');
$this->elementEnd('dl');
}
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/**
* Show licenses.
*
* @return nothing
*/
function showLicenses()
{
$this->elementStart('dl', array('id' => 'licenses'));
$this->showStatusNetLicense();
$this->showContentLicense();
$this->elementEnd('dl');
}
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/**
* Show StatusNet license.
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*
* @return nothing
*/
function showStatusNetLicense()
{
// TRANS: DT element for StatusNet software license.
$this->element('dt', array('id' => 'site_statusnet_license'), _('StatusNet software license'));
$this->elementStart('dd', null);
if (common_config('site', 'broughtby')) {
// TRANS: First sentence of the StatusNet site license. Used if 'broughtby' is set.
$instr = _('**%%site.name%%** is a microblogging service brought to you by [%%site.broughtby%%](%%site.broughtbyurl%%).');
} else {
// TRANS: First sentence of the StatusNet site license. Used if 'broughtby' is not set.
$instr = _('**%%site.name%%** is a microblogging service.');
}
$instr .= ' ';
// TRANS: Second sentence of the StatusNet site license. Mentions the StatusNet source code license.
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$instr .= sprintf(_('It runs the [StatusNet](http://status.net/) microblogging software, version %s, available under the [GNU Affero General Public License](http://www.fsf.org/licensing/licenses/agpl-3.0.html).'), STATUSNET_VERSION);
$output = common_markup_to_html($instr);
$this->raw($output);
$this->elementEnd('dd');
// do it
}
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/**
* Show content license.
*
* @return nothing
*/
function showContentLicense()
{
if (Event::handle('StartShowContentLicense', array($this))) {
// TRANS: DT element for StatusNet site content license.
$this->element('dt', array('id' => 'site_content_license'), _('Site content license'));
$this->elementStart('dd', array('id' => 'site_content_license_cc'));
switch (common_config('license', 'type')) {
case 'private':
// TRANS: Content license displayed when license is set to 'private'.
// TRANS: %1$s is the site name.
$this->element('p', null, sprintf(_('Content and data of %1$s are private and confidential.'),
common_config('site', 'name')));
// fall through
case 'allrightsreserved':
if (common_config('license', 'owner')) {
// TRANS: Content license displayed when license is set to 'allrightsreserved'.
// TRANS: %1$s is the copyright owner.
$this->element('p', null, sprintf(_('Content and data copyright by %1$s. All rights reserved.'),
common_config('license', 'owner')));
} else {
// TRANS: Content license displayed when license is set to 'allrightsreserved' and no owner is set.
$this->element('p', null, _('Content and data copyright by contributors. All rights reserved.'));
}
break;
case 'cc': // fall through
default:
$this->elementStart('p');
$this->element('img', array('id' => 'license_cc',
'src' => common_config('license', 'image'),
'alt' => common_config('license', 'title'),
'width' => '80',
'height' => '15'));
$this->text(' ');
// TRANS: license message in footer. %1$s is the site name, %2$s is a link to the license URL, with a licence name set in configuration.
$notice = _('All %1$s content and data are available under the %2$s license.');
$link = "<a class=\"license\" rel=\"external license\" href=\"" .
htmlspecialchars(common_config('license', 'url')) .
"\">" .
htmlspecialchars(common_config('license', 'title')) .
"</a>";
$this->raw(sprintf(htmlspecialchars($notice),
htmlspecialchars(common_config('site', 'name')),
$link));
$this->elementEnd('p');
break;
}
$this->elementEnd('dd');
Event::handle('EndShowContentLicense', array($this));
}
}
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/**
* Return last modified, if applicable.
*
* MAY override
*
* @return string last modified http header
*/
function lastModified()
{
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// For comparison with If-Last-Modified
// If not applicable, return null
return null;
}
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/**
* Return etag, if applicable.
*
* MAY override
*
* @return string etag http header
*/
function etag()
{
return null;
}
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/**
* Return true if read only.
*
* MAY override
*
* @param array $args other arguments
*
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* @return boolean is read only action?
*/
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function isReadOnly($args)
{
return false;
}
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/**
* Returns query argument or default value if not found
*
* @param string $key requested argument
* @param string $def default value to return if $key is not provided
*
* @return boolean is read only action?
*/
function arg($key, $def=null)
{
if (array_key_exists($key, $this->args)) {
return $this->args[$key];
} else {
return $def;
}
}
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/**
* Returns trimmed query argument or default value if not found
*
* @param string $key requested argument
* @param string $def default value to return if $key is not provided
*
* @return boolean is read only action?
*/
function trimmed($key, $def=null)
{
$arg = $this->arg($key, $def);
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return is_string($arg) ? trim($arg) : $arg;
}
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/**
* Handler method
*
* @param array $argarray is ignored since it's now passed in in prepare()
*
* @return boolean is read only action?
*/
function handle($argarray=null)
{
header('Vary: Accept-Encoding,Cookie');
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$lm = $this->lastModified();
$etag = $this->etag();
if ($etag) {
header('ETag: ' . $etag);
}
if ($lm) {
header('Last-Modified: ' . date(DATE_RFC1123, $lm));
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if (array_key_exists('HTTP_IF_MODIFIED_SINCE', $_SERVER)) {
$if_modified_since = $_SERVER['HTTP_IF_MODIFIED_SINCE'];
$ims = strtotime($if_modified_since);
if ($lm <= $ims) {
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$if_none_match = (array_key_exists('HTTP_IF_NONE_MATCH', $_SERVER)) ?
$_SERVER['HTTP_IF_NONE_MATCH'] : null;
if (!$if_none_match ||
!$etag ||
$this->_hasEtag($etag, $if_none_match)) {
header('HTTP/1.1 304 Not Modified');
// Better way to do this?
exit(0);
}
}
}
}
}
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/**
* Has etag? (private)
*
* @param string $etag etag http header
* @param string $if_none_match ifNoneMatch http header
*
* @return boolean
*/
function _hasEtag($etag, $if_none_match)
{
$etags = explode(',', $if_none_match);
return in_array($etag, $etags) || in_array('*', $etags);
}
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/**
* Boolean understands english (yes, no, true, false)
*
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* @param string $key query key we're interested in
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* @param string $def default value
*
* @return boolean interprets yes/no strings as boolean
*/
function boolean($key, $def=false)
{
$arg = strtolower($this->trimmed($key));
if (is_null($arg)) {
return $def;
} else if (in_array($arg, array('true', 'yes', '1', 'on'))) {
return true;
} else if (in_array($arg, array('false', 'no', '0'))) {
return false;
} else {
return $def;
}
}
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/**
* Integer value of an argument
*
* @param string $key query key we're interested in
* @param string $defValue optional default value (default null)
* @param string $maxValue optional max value (default null)
* @param string $minValue optional min value (default null)
*
* @return integer integer value
*/
function int($key, $defValue=null, $maxValue=null, $minValue=null)
{
$arg = strtolower($this->trimmed($key));
if (is_null($arg) || !is_integer($arg)) {
return $defValue;
}
if (!is_null($maxValue)) {
$arg = min($arg, $maxValue);
}
if (!is_null($minValue)) {
$arg = max($arg, $minValue);
}
return $arg;
}
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/**
* Server error
*
* @param string $msg error message to display
* @param integer $code http error code, 500 by default
*
* @return nothing
*/
function serverError($msg, $code=500)
{
$action = $this->trimmed('action');
common_debug("Server error '$code' on '$action': $msg", __FILE__);
throw new ServerException($msg, $code);
}
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/**
* Client error
*
* @param string $msg error message to display
* @param integer $code http error code, 400 by default
*
* @return nothing
*/
function clientError($msg, $code=400)
{
$action = $this->trimmed('action');
common_debug("User error '$code' on '$action': $msg", __FILE__);
throw new ClientException($msg, $code);
}
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/**
* Returns the current URL
*
* @return string current URL
*/
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function selfUrl()
{
list($action, $args) = $this->returnToArgs();
return common_local_url($action, $args);
}
/**
* Returns arguments sufficient for re-constructing URL
*
* @return array two elements: action, other args
*/
function returnToArgs()
{
$action = $this->trimmed('action');
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$args = $this->args;
unset($args['action']);
if (common_config('site', 'fancy')) {
unset($args['p']);
}
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if (array_key_exists('submit', $args)) {
unset($args['submit']);
}
foreach (array_keys($_COOKIE) as $cookie) {
unset($args[$cookie]);
}
return array($action, $args);
}
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/**
* Generate a menu item
*
* @param string $url menu URL
* @param string $text menu name
* @param string $title title attribute, null by default
* @param boolean $is_selected current menu item, false by default
* @param string $id element id, null by default
*
* @return nothing
*/
function menuItem($url, $text, $title=null, $is_selected=false, $id=null)
{
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// Added @id to li for some control.
// XXX: We might want to move this to htmloutputter.php
$lattrs = array();
if ($is_selected) {
$lattrs['class'] = 'current';
}
(is_null($id)) ? $lattrs : $lattrs['id'] = $id;
$this->elementStart('li', $lattrs);
$attrs['href'] = $url;
if ($title) {
$attrs['title'] = $title;
}
$this->element('a', $attrs, $text);
$this->elementEnd('li');
}
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/**
* Generate pagination links
*
* @param boolean $have_before is there something before?
* @param boolean $have_after is there something after?
* @param integer $page current page
* @param string $action current action
* @param array $args rest of query arguments
*
* @return nothing
*/
// XXX: The messages in this pagination method only tailor to navigating
// notices. In other lists, "Previous"/"Next" type navigation is
// desirable, but not available.
function pagination($have_before, $have_after, $page, $action, $args=null)
{
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// Does a little before-after block for next/prev page
if ($have_before || $have_after) {
$this->elementStart('dl', 'pagination');
// TRANS: DT element for pagination (previous/next, etc.).
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$this->element('dt', null, _('Pagination'));
$this->elementStart('dd', null);
$this->elementStart('ul', array('class' => 'nav'));
}
if ($have_before) {
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$pargs = array('page' => $page-1);
$this->elementStart('li', array('class' => 'nav_prev'));
$this->element('a', array('href' => common_local_url($action, $args, $pargs),
'rel' => 'prev'),
// TRANS: Pagination message to go to a page displaying information more in the
// TRANS: present than the currently displayed information.
_('After'));
$this->elementEnd('li');
}
if ($have_after) {
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$pargs = array('page' => $page+1);
$this->elementStart('li', array('class' => 'nav_next'));
$this->element('a', array('href' => common_local_url($action, $args, $pargs),
'rel' => 'next'),
// TRANS: Pagination message to go to a page displaying information more in the
// TRANS: past than the currently displayed information.
_('Before'));
$this->elementEnd('li');
}
if ($have_before || $have_after) {
$this->elementEnd('ul');
$this->elementEnd('dd');
$this->elementEnd('dl');
}
}
/**
* An array of feeds for this action.
*
* Returns an array of potential feeds for this action.
*
* @return array Feed object to show in head and links
*/
function getFeeds()
{
return null;
}
/**
* A design for this action
*
* @return Design a design object to use
*/
function getDesign()
{
return Design::siteDesign();
}
/**
* Check the session token.
*
* Checks that the current form has the correct session token,
* and throw an exception if it does not.
*
* @return void
*/
// XXX: Finding this type of check with the same message about 50 times.
// Possible to refactor?
function checkSessionToken()
{
// CSRF protection
$token = $this->trimmed('token');
if (empty($token) || $token != common_session_token()) {
$this->clientError(_('There was a problem with your session token.'));
}
}
}