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                 // We need the editor here to be able to reshare an item.
  92                 if (local_user()) {
  93                         $x = array(
  94                                 'is_owner' => true,
  95                                 'allow_location' => $a->user['allow_location'],
  96                                 'default_location' => $a->user['default-location'],
  97                                 'nickname' => $a->user['nickname'],
  98                                 'lockstate' => (is_array($a->user) && (strlen($a->user['allow_cid']) || strlen($a->user['allow_gid']) || strlen($a->user['deny_cid']) || strlen($a->user['deny_gid'])) ? 'lock' : 'unlock'),
  99                                 'acl' => populate_acl($a->user, true),
 100                                 'bang' => '',
 101                                 'visitor' => 'block',
 102                                 'profile_uid' => local_user(),
 103                         );
 104                         $o .= status_editor($a, $x, 0, true);
 105                 }
 106         }
 107
 108         if (Config::get('system', 'comment_public')) {
 109                 // check if we serve a mobile device and get the user settings
 110                 // accordingly
 111                 if ($a->is_mobile) {
 112                         $itemspage_network = PConfig::get(local_user(), 'system', 'itemspage_mobile_network', 20);
 113                 } else {
 114                         $itemspage_network = PConfig::get(local_user(), 'system', 'itemspage_network', 40);
 115                 }
 116
 117                 // now that we have the user settings, see if the theme forces
 118                 // a maximum item number which is lower then the user choice
 119                 if (($a->force_max_items > 0) && ($a->force_max_items < $itemspage_network)) {
 120                         $itemspage_network = $a->force_max_items;
 121                 }
 122
 123                 $a->set_pager_itemspage($itemspage_network);
 124         }
 125
 126         $r = community_getitems($a->pager['start'], $a->pager['itemspage'], $content);
 127
 128         if (!DBM::is_result($r)) {
 129                 info(t('No results.') . EOL);
 130                 return $o;
 131         }
 132
 133         $maxpostperauthor = (int) Config::get('system', 'max_author_posts_community_page');
 134
 135         if (($maxpostperauthor != 0) && ($content == 'local')) {
 136                 $count = 1;
 137                 $previousauthor = "";
 138                 $numposts = 0;
 139                 $s = array();
 140
 141                 do {
 142                         foreach ($r as $item) {
 143                                 if ($previousauthor == $item["author-link"]) {
 144                                         ++$numposts;
 145                                 } else {
 146                                         $numposts = 0;
 147                                 }
 148                                 $previousauthor = $item["author-link"];
 149
 150                                 if (($numposts < $maxpostperauthor) && (count($s) < $a->pager['itemspage'])) {
 151                                         $s[] = $item;
 152                                 }
 153                         }
 154                         if (count($s) < $a->pager['itemspage']) {
 155                                 $r = community_getitems($a->pager['start'] + ($count * $a->pager['itemspage']), $a->pager['itemspage'], $content);
 156                         }
 157                 } while ((count($s) < $a->pager['itemspage']) && ( ++$count < 50) && (count($r) > 0));
 158         } else {
 159                 $s = $r;
 160         }
 161
 162         $o .= conversation($a, $s, 'community', $update);
 163
 164         if (!$update) {
 165                 $o .= alt_pager($a, count($r));
 166         }
 167
 168         $t = get_markup_template("community.tpl");
 169         return replace_macros($t, array(
 170                 '$content' => $o,
 171                 '$header' => '',
 172                 '$show_global_community_hint' => ($content == 'global') && Config::get('system', 'show_global_community_hint'),
 173                 '$global_community_hint' => t("This community stream shows all public posts received by this node. They may not reflect the opinions of this node’s users.")
 174         ));
 175 }
 176
 177 function community_getitems($start, $itemspage, $content)
 178 {
 179         if ($content == 'local') {
 180                 $r = dba::p("SELECT " . item_fieldlists() . " FROM `thread`
 181                         INNER JOIN `user` ON `user`.`uid` = `thread`.`uid` AND NOT `user`.`hidewall`
 182                         INNER JOIN `item` ON `item`.`id` = `thread`.`iid`
 183                         AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
 184                         AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''" .
 185                         item_joins() . " AND `contact`.`self`
 186                         WHERE `thread`.`visible` AND NOT `thread`.`deleted` AND NOT `thread`.`moderated`
 187                         AND NOT `thread`.`private` AND `thread`.`wall`
 188                         ORDER BY `thread`.`received` DESC LIMIT " . intval($start) . ", " . intval($itemspage)
 189                 );
 190                 return dba::inArray($r);
 191         } elseif ($content == 'global') {
 192                 $r = dba::p("SELECT " . item_fieldlists() . " FROM `thread`
 193                         INNER JOIN `item` ON `item`.`id` = `thread`.`iid` " . item_joins() .
 194                                 "WHERE `thread`.`uid` = 0 AND `verb` = ?
 195                         ORDER BY `thread`.`created` DESC LIMIT " . intval($start) . ", " . intval($itemspage),
 196                         ACTIVITY_POST
 197                 );
 198                 return dba::inArray($r);
 199         }
 200
 201         // Should never happen
 202         return array();
 203 }