mod/community.php

   1 <?php
   2
   3 use Friendica\App;
   4 use Friendica\Core\Config;
   5 use Friendica\Core\PConfig;
   6 use Friendica\Database\DBM;
   7
   8 function community_init(App $a)
   9 {
  10         if (!local_user()) {
  11                 unset($_SESSION['theme']);
  12                 unset($_SESSION['mobile-theme']);
  13         }
  14 }
  15
  16 function community_content(App $a, $update = 0)
  17 {
  18         $o = '';
  19
  20         if (Config::get('system', 'block_public') && !local_user() && !remote_user()) {
  21                 notice(t('Public access denied.') . EOL);
  22                 return;
  23         }
  24
  25         $page_style = Config::get('system', 'community_page_style');
  26
  27         if ($a->argc > 1) {
  28                 $content = $a->argv[1];
  29         } else {
  30                 // When only the global community is allowed, we use this as default
  31                 $content = $page_style == CP_GLOBAL_COMMUNITY ? 'global' : 'local';
  32         }
  33
  34         if (!in_array($content, ['local', 'global'])) {
  35                 notice(t('Community option not available.') . EOL);
  36                 return;
  37         }
  38
  39         // Check if we are allowed to display the content to visitors
  40         if (!local_user()) {
  41                 $available = $page_style == CP_USERS_AND_GLOBAL;
  42
  43                 if (!$available) {
  44                         $available = ($page_style == CP_USERS_ON_SERVER) && ($content == 'local');
  45                 }
  46
  47                 if (!$available) {
  48                         $available = ($page_style == CP_GLOBAL_COMMUNITY) && ($content == 'global');
  49                 }
  50
  51                 if (!$available) {
  52                         notice(t('Not available.') . EOL);
  53                         return;
  54                 }
  55         }
  56
  57         require_once 'include/bbcode.php';
  58         require_once 'include/security.php';
  59         require_once 'include/conversation.php';
  60
  61         if (!$update) {
  62                 $tabs = [];
  63
  64                 if (local_user() || in_array($page_style, [CP_USERS_AND_GLOBAL, CP_USERS_ON_SERVER])) {
  65                         $tabs[] = array(
  66                                 'label' => t('Community'),
  67                                 'url' => 'community/local',
  68                                 'sel' => $content == 'local' ? 'active' : '',
  69                                 'title' => t('Posts from local users on this server'),
  70                                 'id' => 'community-local-tab',
  71                                 'accesskey' => 'l'
  72                         );
  73                 }
  74
  75                 if (local_user() || in_array($page_style, [CP_USERS_AND_GLOBAL, CP_GLOBAL_COMMUNITY])) {
  76                         $tabs[] = array(
  77                                 'label' => t('Global Timeline'),
  78                                 'url' => 'community/global',
  79                                 'sel' => $content == 'global' ? 'active' : '',
  80                                 'title' => t('Posts from users of the federated network'),
  81                                 'id' => 'community-global-tab',
  82                                 'accesskey' => 'g'
  83                         );
  84                 }
  85
  86                 $tab_tpl = get_markup_template('common_tabs.tpl');
  87                 $o .= replace_macros($tab_tpl, array('$tabs' => $tabs));
  88
  89                 nav_set_selected('community');
  90         }
  91
  92         if (Config::get('system', 'comment_public')) {
  93                 // check if we serve a mobile device and get the user settings
  94                 // accordingly
  95                 if ($a->is_mobile) {
  96                         $itemspage_network = PConfig::get(local_user(), 'system', 'itemspage_mobile_network', 20);
  97                 } else {
  98                         $itemspage_network = PConfig::get(local_user(), 'system', 'itemspage_network', 40);
  99                 }
 100
 101                 // now that we have the user settings, see if the theme forces
 102                 // a maximum item number which is lower then the user choice
 103                 if (($a->force_max_items > 0) && ($a->force_max_items < $itemspage_network)) {
 104                         $itemspage_network = $a->force_max_items;
 105                 }
 106
 107                 $a->set_pager_itemspage($itemspage_network);
 108         }
 109
 110         $r = community_getitems($a->pager['start'], $a->pager['itemspage'], $content);
 111
 112         if (!DBM::is_result($r)) {
 113                 info(t('No results.') . EOL);
 114                 return $o;
 115         }
 116
 117         $maxpostperauthor = (int) Config::get('system', 'max_author_posts_community_page');
 118
 119         if (($maxpostperauthor != 0) && ($content == 'local')) {
 120                 $count = 1;
 121                 $previousauthor = "";
 122                 $numposts = 0;
 123                 $s = array();
 124
 125                 do {
 126                         foreach ($r as $item) {
 127                                 if ($previousauthor == $item["author-link"]) {
 128                                         ++$numposts;
 129                                 } else {
 130                                         $numposts = 0;
 131                                 }
 132                                 $previousauthor = $item["author-link"];
 133
 134                                 if (($numposts < $maxpostperauthor) && (count($s) < $a->pager['itemspage'])) {
 135                                         $s[] = $item;
 136                                 }
 137                         }
 138                         if (count($s) < $a->pager['itemspage']) {
 139                                 $r = community_getitems($a->pager['start'] + ($count * $a->pager['itemspage']), $a->pager['itemspage'], $content);
 140                         }
 141                 } while ((count($s) < $a->pager['itemspage']) && ( ++$count < 50) && (count($r) > 0));
 142         } else {
 143                 $s = $r;
 144         }
 145
 146         $o .= conversation($a, $s, 'community', $update);
 147
 148         if (!$update) {
 149                 $o .= alt_pager($a, count($r));
 150         }
 151
 152         $t = get_markup_template("community.tpl");
 153         return replace_macros($t, array(
 154                 '$content' => $o,
 155                 '$header' => '',
 156                 '$show_global_community_hint' => ($content == 'global') && Config::get('system', 'show_global_community_hint'),
 157                 '$global_community_hint' => t("This community stream shows all public posts received by this node. They may not reflect the opinions of this node’s users.")
 158         ));
 159 }
 160
 161 function community_getitems($start, $itemspage, $content)
 162 {
 163         if ($content == 'local') {
 164                 $r = dba::p("SELECT " . item_fieldlists() . " FROM `thread`
 165                         INNER JOIN `user` ON `user`.`uid` = `thread`.`uid` AND NOT `user`.`hidewall`
 166                         INNER JOIN `item` ON `item`.`id` = `thread`.`iid`
 167                         AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
 168                         AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''" .
 169                         item_joins() . " AND `contact`.`self`
 170                         WHERE `thread`.`visible` AND NOT `thread`.`deleted` AND NOT `thread`.`moderated`
 171                         AND NOT `thread`.`private` AND `thread`.`wall`
 172                         ORDER BY `thread`.`received` DESC LIMIT " . intval($start) . ", " . intval($itemspage)
 173                 );
 174                 return dba::inArray($r);
 175         } elseif ($content == 'global') {
 176                 $r = dba::p("SELECT " . item_fieldlists() . " FROM `thread`
 177                         INNER JOIN `item` ON `item`.`id` = `thread`.`iid` " . item_joins() .
 178                                 "WHERE `thread`.`uid` = 0 AND `verb` = ?
 179                         ORDER BY `thread`.`created` DESC LIMIT " . intval($start) . ", " . intval($itemspage),
 180                         ACTIVITY_POST
 181                 );
 182                 return dba::inArray($r);
 183         }
 184
 185         // Should never happen
 186         return array();
 187 }