forked from GNUsocial/gnu-social
902 lines
26 KiB
PHP
902 lines
26 KiB
PHP
<?php
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/**
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* Laconica, the distributed open-source microblogging tool
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*
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* Base class for all actions (~views)
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*
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* PHP version 5
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*
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* LICENCE: This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @category Action
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* @package Laconica
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* @author Evan Prodromou <evan@controlyourself.ca>
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* @author Sarven Capadisli <csarven@controlyourself.ca>
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* @copyright 2008 Control Yourself, 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://laconi.ca/
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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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require_once INSTALLDIR.'/lib/noticeform.php';
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require_once INSTALLDIR.'/lib/htmloutputter.php';
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/**
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* Base class for all actions
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*
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* This is the base class for all actions in the package. An action is
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* more or less a "view" in an MVC framework.
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*
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* Actions are responsible for extracting and validating parameters; using
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* model classes to read and write to the database; and doing ouput.
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*
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* @category Output
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* @package Laconica
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* @author Evan Prodromou <evan@controlyourself.ca>
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* @author Sarven Capadisli <csarven@controlyourself.ca>
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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://laconi.ca/
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*
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* @see HTMLOutputter
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*/
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class Action extends HTMLOutputter // lawsuit
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{
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var $args;
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/**
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* Constructor
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*
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* Just wraps the HTMLOutputter constructor.
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*
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* @param string $output URI to output to, default = stdout
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* @param boolean $indent Whether to indent output, default true
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*
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* @see XMLOutputter::__construct
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* @see HTMLOutputter::__construct
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*/
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function __construct($output='php://output', $indent=true)
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{
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parent::__construct($output, $indent);
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}
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/**
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* For initializing members of the class.
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*
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* @param array $argarray misc. arguments
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*
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* @return boolean true
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*/
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function prepare($argarray)
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{
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$this->args =& common_copy_args($argarray);
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return true;
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}
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/**
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* Show page, a template method.
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*
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* @return nothing
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*/
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function showPage()
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{
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$this->startHTML();
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$this->showHead();
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$this->showBody();
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$this->endHTML();
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}
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/**
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* Show head, a template method.
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*
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* @return nothing
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*/
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function showHead()
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{
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// XXX: attributes (profile?)
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$this->elementStart('head');
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$this->showTitle();
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$this->showStylesheets();
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$this->showScripts();
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$this->showOpenSearch();
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$this->showFeeds();
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$this->showDescription();
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$this->extraHead();
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$this->elementEnd('head');
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}
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/**
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* Show title, a template method.
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*
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* @return nothing
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*/
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function showTitle()
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{
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$this->element('title', null,
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sprintf(_("%s - %s"),
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$this->title(),
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common_config('site', 'name')));
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}
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/**
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* Returns the page title
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*
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* SHOULD overload
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*
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* @return string page title
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*/
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function title()
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{
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return _("Untitled page");
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}
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/**
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* Show stylesheets
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*
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* @return nothing
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*/
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function showStylesheets()
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{
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$this->element('link', array('rel' => 'stylesheet',
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'type' => 'text/css',
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'href' => theme_path('css/display.css', 'base') . '?version=' . LACONICA_VERSION,
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'media' => 'screen, projection, tv'));
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$this->element('link', array('rel' => 'stylesheet',
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'type' => 'text/css',
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'href' => theme_path('css/thickbox.css', 'base') . '?version=' . LACONICA_VERSION,
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'media' => 'screen, projection, tv'));
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$this->element('link', array('rel' => 'stylesheet',
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'type' => 'text/css',
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'href' => theme_path('css/display.css', null) . '?version=' . LACONICA_VERSION,
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'media' => 'screen, projection, tv'));
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$this->comment('[if IE]><link rel="stylesheet" type="text/css" '.
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'href="'.theme_path('css/ie.css', 'base').'?version='.LACONICA_VERSION.'" /><![endif]');
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foreach (array(6,7) as $ver) {
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if (file_exists(theme_file('ie'.$ver.'.css'))) {
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// Yes, IE people should be put in jail.
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$this->comment('[if lte IE '.$ver.']><link rel="stylesheet" type="text/css" '.
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'href="'.theme_path('css/ie'.$ver.'.css', 'base').'?version='.LACONICA_VERSION.'" /><![endif]');
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}
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}
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}
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/**
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* Show javascript headers
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*
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* @return nothing
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*/
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function showScripts()
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{
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$this->element('script', array('type' => 'text/javascript',
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'src' => common_path('js/jquery.min.js')),
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' ');
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$this->element('script', array('type' => 'text/javascript',
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'src' => common_path('js/jquery.form.js')),
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' ');
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$this->element('script', array('type' => 'text/javascript',
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'src' => common_path('js/xbImportNode.js')),
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' ');
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$this->element('script', array('type' => 'text/javascript',
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'src' => common_path('js/util.js?version='.LACONICA_VERSION)),
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' ');
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}
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/**
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* Show OpenSearch headers
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*
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* @return nothing
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*/
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function showOpenSearch()
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{
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$this->element('link', array('rel' => 'search',
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'type' => 'application/opensearchdescription+xml',
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'href' => common_local_url('opensearch', array('type' => 'people')),
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'title' => common_config('site', 'name').' People Search'));
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$this->element('link', array('rel' => 'search', 'type' => 'application/opensearchdescription+xml',
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'href' => common_local_url('opensearch', array('type' => 'notice')),
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'title' => common_config('site', 'name').' Notice Search'));
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}
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/**
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* Show feed headers
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*
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* MAY overload
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*
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* @return nothing
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*/
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function showFeeds()
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{
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// does nothing by default
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}
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/**
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* Show description.
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*
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* SHOULD overload
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*
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* @return nothing
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*/
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function showDescription()
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{
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// does nothing by default
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}
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/**
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* Show extra stuff in <head>.
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*
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* MAY overload
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*
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* @return nothing
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*/
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function extraHead()
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{
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// does nothing by default
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}
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/**
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* Show body.
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*
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* Calls template methods
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*
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* @return nothing
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*/
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function showBody()
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{
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$this->elementStart('body', array('id' => $this->trimmed('action')));
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$this->elementStart('div', 'wrap');
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$this->showHeader();
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$this->showCore();
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$this->showFooter();
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$this->elementEnd('div');
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$this->elementEnd('body');
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}
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/**
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* Show header of the page.
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*
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* Calls template methods
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*
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* @return nothing
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*/
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function showHeader()
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{
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$this->elementStart('div', array('id' => 'header'));
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$this->showLogo();
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$this->showPrimaryNav();
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$this->showSiteNotice();
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if (common_logged_in()) {
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$this->showNoticeForm();
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} else {
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$this->showAnonymousMessage();
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}
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$this->elementEnd('div');
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}
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/**
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* Show configured logo.
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*
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* @return nothing
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*/
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function showLogo()
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{
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$this->elementStart('address', array('id' => 'site_contact',
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'class' => 'vcard'));
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$this->elementStart('a', array('class' => 'url home bookmark',
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'href' => common_local_url('public')));
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if (common_config('site', 'logo') || file_exists(theme_file('logo.png'))) {
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$this->element('img', array('class' => 'logo photo',
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'src' => (common_config('site', 'logo')) ? common_config('site', 'logo') : theme_path('logo.png'),
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'alt' => common_config('site', 'name')));
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}
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$this->element('span', array('class' => 'fn org'), common_config('site', 'name'));
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$this->elementEnd('a');
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$this->elementEnd('address');
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}
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/**
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* Show primary navigation.
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*
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* @return nothing
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*/
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function showPrimaryNav()
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{
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$this->elementStart('dl', array('id' => 'site_nav_global_primary'));
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$this->element('dt', null, _('Primary site navigation'));
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$this->elementStart('dd');
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$user = common_current_user();
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$this->elementStart('ul', array('class' => 'nav'));
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if ($user) {
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$this->menuItem(common_local_url('all', array('nickname' => $user->nickname)),
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_('Home'), _('Personal profile and friends timeline'), false, 'nav_home');
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}
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$this->menuItem(common_local_url('peoplesearch'),
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_('Search'), _('Search for people or text'), false, 'nav_search');
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if ($user) {
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$this->menuItem(common_local_url('profilesettings'),
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_('Account'), _('Change your email, avatar, password, profile'), false, 'nav_account');
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$this->menuItem(common_local_url('imsettings'),
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_('Connect'), _('Connect to IM, SMS, Twitter'), false, 'nav_connect');
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$this->menuItem(common_local_url('logout'),
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_('Logout'), _('Logout from the site'), false, 'nav_logout');
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} else {
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$this->menuItem(common_local_url('login'),
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_('Login'), _('Login to the site'), false, 'nav_login');
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if (!common_config('site', 'closed')) {
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$this->menuItem(common_local_url('register'),
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_('Register'), _('Create an account'), false, 'nav_register');
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}
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$this->menuItem(common_local_url('openidlogin'),
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_('OpenID'), _('Login with OpenID'), false, 'nav_openid');
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}
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$this->menuItem(common_local_url('doc', array('title' => 'help')),
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_('Help'), _('Help me!'), false, 'nav_help');
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$this->elementEnd('ul');
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$this->elementEnd('dd');
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$this->elementEnd('dl');
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}
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/**
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* Show site notice.
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*
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* @return nothing
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*/
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function showSiteNotice()
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{
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// Revist. Should probably do an hAtom pattern here
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$text = common_config('site', 'notice');
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if ($text) {
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$this->elementStart('dl', array('id' => 'site_notice',
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'class' => 'system_notice'));
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$this->element('dt', null, _('Site notice'));
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$this->element('dd', null, $text);
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$this->elementEnd('dl');
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}
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}
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/**
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* Show notice form.
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*
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* MAY overload if no notice form needed... or direct message box????
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*
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* @return nothing
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*/
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function showNoticeForm()
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{
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$notice_form = new NoticeForm($this);
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$notice_form->show();
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}
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/**
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* Show anonymous message.
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*
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* SHOULD overload
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*
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* @return nothing
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*/
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function showAnonymousMessage()
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{
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// needs to be defined by the class
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}
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/**
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* Show core.
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*
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* Shows local navigation, content block and aside.
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*
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* @return nothing
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*/
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function showCore()
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{
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$this->elementStart('div', array('id' => 'core'));
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$this->showLocalNavBlock();
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$this->showContentBlock();
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$this->showAside();
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$this->elementEnd('div');
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}
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/**
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* Show local navigation block.
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*
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* @return nothing
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*/
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function showLocalNavBlock()
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{
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$this->elementStart('dl', array('id' => 'site_nav_local_views'));
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$this->element('dt', null, _('Local views'));
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$this->elementStart('dd');
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$this->showLocalNav();
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$this->elementEnd('dd');
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$this->elementEnd('dl');
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}
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/**
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* Show local navigation.
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*
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* SHOULD overload
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*
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* @return nothing
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*/
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function showLocalNav()
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{
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// does nothing by default
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}
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/**
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* Show content block.
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*
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* @return nothing
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*/
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function showContentBlock()
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{
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$this->elementStart('div', array('id' => 'content'));
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$this->showPageTitle();
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$this->showPageNoticeBlock();
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$this->elementStart('div', array('id' => 'content_inner'));
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// show the actual content (forms, lists, whatever)
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$this->showContent();
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$this->elementEnd('div');
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$this->elementEnd('div');
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}
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/**
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* Show page title.
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*
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* @return nothing
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*/
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function showPageTitle()
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{
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$this->element('h1', null, $this->title());
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}
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/**
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* Show page notice block.
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*
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* @return nothing
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*/
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function showPageNoticeBlock()
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{
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$this->elementStart('dl', array('id' => 'page_notice',
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'class' => 'system_notice'));
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$this->element('dt', null, _('Page notice'));
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$this->elementStart('dd');
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$this->showPageNotice();
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$this->elementEnd('dd');
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$this->elementEnd('dl');
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}
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/**
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* Show page notice.
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*
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* SHOULD overload (unless there's not a notice)
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*
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* @return nothing
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*/
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function showPageNotice()
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{
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}
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/**
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* Show content.
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*
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* MUST overload (unless there's not a notice)
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*
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* @return nothing
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*/
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function showContent()
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{
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}
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/**
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* Show Aside.
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*
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* @return nothing
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*/
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function showAside()
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{
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$this->elementStart('div', array('id' => 'aside_primary',
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'class' => 'aside'));
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$this->showExportData();
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$this->showSections();
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$this->elementEnd('div');
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}
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/**
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* Show export data feeds.
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*
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* MAY overload if there are feeds
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*
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* @return nothing
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*/
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function showExportData()
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{
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// is there structure to this?
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// list of (visible!) feed links
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// can we reuse list of feeds from showFeeds() ?
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}
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/**
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* Show sections.
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*
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* SHOULD overload
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*
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* @return nothing
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*/
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function showSections()
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{
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// for each section, show it
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}
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/**
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* Show footer.
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*
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* @return nothing
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*/
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function showFooter()
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{
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$this->elementStart('div', array('id' => 'footer'));
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$this->showSecondaryNav();
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$this->showLicenses();
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$this->elementEnd('div');
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}
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/**
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* Show secondary navigation.
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*
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* @return nothing
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*/
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function showSecondaryNav()
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{
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$this->elementStart('dl', array('id' => 'site_nav_global_secondary'));
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$this->element('dt', null, _('Secondary site navigation'));
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$this->elementStart('dd', null);
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$this->elementStart('ul', array('class' => 'nav'));
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$this->menuItem(common_local_url('doc', array('title' => 'help')),
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_('Help'));
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$this->menuItem(common_local_url('doc', array('title' => 'about')),
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_('About'));
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$this->menuItem(common_local_url('doc', array('title' => 'faq')),
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_('FAQ'));
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$this->menuItem(common_local_url('doc', array('title' => 'privacy')),
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_('Privacy'));
|
||
$this->menuItem(common_local_url('doc', array('title' => 'source')),
|
||
_('Source'));
|
||
$this->menuItem(common_local_url('doc', array('title' => 'contact')),
|
||
_('Contact'));
|
||
$this->elementEnd('ul');
|
||
$this->elementEnd('dd');
|
||
$this->elementEnd('dl');
|
||
}
|
||
|
||
/**
|
||
* Show licenses.
|
||
*
|
||
* @return nothing
|
||
*/
|
||
function showLicenses()
|
||
{
|
||
$this->elementStart('dl', array('id' => 'licenses'));
|
||
$this->showLaconicaLicense();
|
||
$this->showContentLicense();
|
||
$this->elementEnd('dl');
|
||
}
|
||
|
||
/**
|
||
* Show Laconica license.
|
||
*
|
||
* @return nothing
|
||
*/
|
||
function showLaconicaLicense()
|
||
{
|
||
$this->element('dt', array('id' => 'site_laconica_license'), _('Laconica software license'));
|
||
$this->elementStart('dd', null);
|
||
if (common_config('site', 'broughtby')) {
|
||
$instr = _('**%%site.name%%** is a microblogging service brought to you by [%%site.broughtby%%](%%site.broughtbyurl%%). ');
|
||
} else {
|
||
$instr = _('**%%site.name%%** is a microblogging service. ');
|
||
}
|
||
$instr .= sprintf(_('It runs the [Laconica](http://laconi.ca/) microblogging software, version %s, available under the [GNU Affero General Public License](http://www.fsf.org/licensing/licenses/agpl-3.0.html).'), LACONICA_VERSION);
|
||
$output = common_markup_to_html($instr);
|
||
$this->raw($output);
|
||
$this->elementEnd('dd');
|
||
// do it
|
||
}
|
||
|
||
/**
|
||
* Show content license.
|
||
*
|
||
* @return nothing
|
||
*/
|
||
function showContentLicense()
|
||
{
|
||
$this->element('dt', array('id' => 'site_content_license'), _('Laconica software license'));
|
||
$this->elementStart('dd', array('id' => 'site_content_license_cc'));
|
||
$this->elementStart('p');
|
||
$this->element('img', array('id' => 'license_cc',
|
||
'src' => common_config('license', 'image'),
|
||
'alt' => common_config('license', 'title')));
|
||
//TODO: This is dirty: i18n
|
||
$this->text(_('All '.common_config('site', 'name').' content and data are available under the '));
|
||
$this->element('a', array('class' => 'license',
|
||
'rel' => 'external license',
|
||
'href' => common_config('license', 'url')),
|
||
common_config('license', 'title'));
|
||
$this->text(_('license.'));
|
||
$this->elementEnd('p');
|
||
$this->elementEnd('dd');
|
||
}
|
||
|
||
/**
|
||
* Return last modified, if applicable.
|
||
*
|
||
* MAY override
|
||
*
|
||
* @return string last modified http header
|
||
*/
|
||
function lastModified()
|
||
{
|
||
// For comparison with If-Last-Modified
|
||
// If not applicable, return null
|
||
return null;
|
||
}
|
||
|
||
/**
|
||
* Return etag, if applicable.
|
||
*
|
||
* MAY override
|
||
*
|
||
* @return string etag http header
|
||
*/
|
||
function etag()
|
||
{
|
||
return null;
|
||
}
|
||
|
||
/**
|
||
* Return true if read only.
|
||
*
|
||
* MAY override
|
||
*
|
||
* @return boolean is read only action?
|
||
*/
|
||
function isReadOnly()
|
||
{
|
||
return false;
|
||
}
|
||
|
||
/**
|
||
* 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;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 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, $def);
|
||
return is_string($arg) ? trim($arg) : $arg;
|
||
}
|
||
|
||
/**
|
||
* 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)
|
||
{
|
||
$lm = $this->lastModified();
|
||
$etag = $this->etag();
|
||
if ($etag) {
|
||
header('ETag: ' . $etag);
|
||
}
|
||
if ($lm) {
|
||
header('Last-Modified: ' . date(DATE_RFC1123, $lm));
|
||
$if_modified_since = $_SERVER['HTTP_IF_MODIFIED_SINCE'];
|
||
if ($if_modified_since) {
|
||
$ims = strtotime($if_modified_since);
|
||
if ($lm <= $ims) {
|
||
if (!$etag ||
|
||
$this->_hasEtag($etag, $_SERVER['HTTP_IF_NONE_MATCH'])) {
|
||
header('HTTP/1.1 304 Not Modified');
|
||
// Better way to do this?
|
||
exit(0);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Has etag? (private)
|
||
*
|
||
* @param string $etag etag http header
|
||
* @param string $if_none_match ifNoneMatch http header
|
||
*
|
||
* @return boolean
|
||
*/
|
||
function _hasEtag($etag, $if_none_match)
|
||
{
|
||
return ($if_none_match) && in_array($etag, explode(',', $if_none_match));
|
||
}
|
||
|
||
/**
|
||
* Boolean understands english (yes, no, true, false)
|
||
*
|
||
* @param string $key query key we're interested in
|
||
* @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'))) {
|
||
return true;
|
||
} else if (in_array($arg, array('false', 'no', '0'))) {
|
||
return false;
|
||
} else {
|
||
return $def;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 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': $msg", __FILE__);
|
||
common_server_error($msg, $code);
|
||
}
|
||
|
||
/**
|
||
* 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': $msg", __FILE__);
|
||
common_user_error($msg, $code);
|
||
}
|
||
|
||
/**
|
||
* Returns the current URL
|
||
*
|
||
* @return string current URL
|
||
*/
|
||
function selfUrl()
|
||
{
|
||
$action = $this->trimmed('action');
|
||
$args = $this->args;
|
||
unset($args['action']);
|
||
foreach (array_keys($_COOKIE) as $cookie) {
|
||
unset($args[$cookie]);
|
||
}
|
||
return common_local_url($action, $args);
|
||
}
|
||
|
||
/**
|
||
* 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)
|
||
{
|
||
// 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');
|
||
}
|
||
|
||
/**
|
||
* 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 $args rest of query arguments
|
||
*
|
||
* @return nothing
|
||
*/
|
||
function pagination($have_before, $have_after, $page, $action, $args=null)
|
||
{
|
||
// Does a little before-after block for next/prev page
|
||
if ($have_before || $have_after) {
|
||
$this->elementStart('div', array('class' => 'pagination'));
|
||
$this->elementStart('dl', null);
|
||
$this->element('dt', null, _('Pagination'));
|
||
$this->elementStart('dd', null);
|
||
$this->elementStart('ul', array('class' => 'nav'));
|
||
}
|
||
if ($have_before) {
|
||
$pargs = array('page' => $page-1);
|
||
$newargs = $args ? array_merge($args, $pargs) : $pargs;
|
||
$this->elementStart('li', array('class' => 'nav_prev'));
|
||
$this->element('a', array('href' => common_local_url($action, $newargs), 'rel' => 'prev'),
|
||
_('After'));
|
||
$this->elementEnd('li');
|
||
}
|
||
if ($have_after) {
|
||
$pargs = array('page' => $page+1);
|
||
$newargs = $args ? array_merge($args, $pargs) : $pargs;
|
||
$this->elementStart('li', array('class' => 'nav_next'));
|
||
$this->element('a', array('href' => common_local_url($action, $newargs), 'rel' => 'next'),
|
||
_('Before'));
|
||
$this->elementEnd('li');
|
||
}
|
||
if ($have_before || $have_after) {
|
||
$this->elementEnd('ul');
|
||
$this->elementEnd('dd');
|
||
$this->elementEnd('dl');
|
||
$this->elementEnd('div');
|
||
}
|
||
}
|
||
}
|