actions/public.php

   1 <?php
   2 /*
   3  * Laconica - a distributed open-source microblogging tool
   4  * Copyright (C) 2008, Controlez-Vous, Inc.
   5  *
   6  * This program is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU Affero General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU Affero General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Affero General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 if (!defined('LACONICA')) { exit(1); }
  21
  22 require_once(INSTALLDIR.'/lib/stream.php');
  23
  24 class PublicAction extends StreamAction {
  25
  26         function handle($args) {
  27                 parent::handle($args);
  28
  29                 $page = ($this->arg('page')) ? ($this->arg('page')+0) : 1;
  30
  31                 header('X-XRDS-Location: '. common_local_url('publicxrds'));
  32
  33                 common_show_header(_('Public timeline'),
  34                                                    array($this, 'show_header'), NULL,
  35                                                    array($this, 'show_top'));
  36
  37                 # XXX: Public sidebar here?
  38
  39                 $this->show_notices($page);
  40
  41                 common_show_footer();
  42         }
  43
  44         function show_top() {
  45                 if (common_logged_in()) {
  46                         common_notice_form('public');
  47                 }
  48         }
  49
  50         function show_header() {
  51                 common_element('link', array('rel' => 'alternate',
  52                                                                          'href' => common_local_url('publicrss'),
  53                                                                          'type' => 'application/rss+xml',
  54                                                                          'title' => _('Public Stream Feed')));
  55                 # for client side of OpenID authentication
  56                 common_element('meta', array('http-equiv' => 'X-XRDS-Location',
  57                                                                          'content' => common_local_url('publicxrds')));
  58         }
  59
  60         function show_notices($page) {
  61
  62                 $notice = DB_DataObject::factory('notice');
  63
  64                 # FIXME: bad performance
  65
  66                 $notice->whereAdd('EXISTS (SELECT user.id from user where user.id = notice.profile_id)');
  67
  68                 $notice->orderBy('created DESC');
  69
  70                 # We fetch one extra, to see if we need an "older" link
  71
  72                 $notice->limit((($page-1)*NOTICES_PER_PAGE), NOTICES_PER_PAGE + 1);
  73
  74                 $cnt = $notice->find();
  75
  76                 if ($cnt > 0) {
  77                         common_element_start('ul', array('id' => 'notices'));
  78                         for ($i = 0; $i < min($cnt, NOTICES_PER_PAGE); $i++) {
  79                                 if ($notice->fetch()) {
  80                                         $this->show_notice($notice);
  81                                 } else {
  82                                         // shouldn't happen!
  83                                         break;
  84                                 }
  85                         }
  86                         common_element_end('ul');
  87                 }
  88
  89                 common_pagination($page > 1, $cnt > NOTICES_PER_PAGE,
  90                                                   $page, 'public');
  91         }
  92 }
  93