mod/community.php

   1 <?php
   2 /**
   3  * @file mod/community.php
   4  */
   5 use Friendica\App;
   6 use Friendica\Content\Nav;
   7 use Friendica\Core\Config;
   8 use Friendica\Core\L10n;
   9 use Friendica\Core\PConfig;
  10 use Friendica\Database\DBM;
  11
  12 function community_init(App $a)
  13 {
  14         if (!local_user()) {
  15                 unset($_SESSION['theme']);
  16                 unset($_SESSION['mobile-theme']);
  17         }
  18 }
  19
  20 function community_content(App $a, $update = 0)
  21 {
  22         $o = '';
  23
  24         if (Config::get('system', 'block_public') && !local_user() && !remote_user()) {
  25                 notice(L10n::t('Public access denied.') . EOL);
  26                 return;
  27         }
  28
  29         $page_style = Config::get('system', 'community_page_style');
  30
  31         if ($a->argc > 1) {
  32                 $content = $a->argv[1];
  33         } else {
  34                 if (!empty(Config::get('system', 'singleuser'))) {
  35                         // On single user systems only the global page does make sense
  36                         $content = 'global';
  37                 } else {
  38                         // When only the global community is allowed, we use this as default
  39                         $content = $page_style == CP_GLOBAL_COMMUNITY ? 'global' : 'local';
  40                 }
  41         }
  42
  43         if (!in_array($content, ['local', 'global'])) {
  44                 notice(L10n::t('Community option not available.') . EOL);
  45                 return;
  46         }
  47
  48         // Check if we are allowed to display the content to visitors
  49         if (!local_user()) {
  50                 $available = $page_style == CP_USERS_AND_GLOBAL;
  51
  52                 if (!$available) {
  53                         $available = ($page_style == CP_USERS_ON_SERVER) && ($content == 'local');
  54                 }
  55
  56                 if (!$available) {
  57                         $available = ($page_style == CP_GLOBAL_COMMUNITY) && ($content == 'global');
  58                 }
  59
  60                 if (!$available) {
  61                         notice(L10n::t('Not available.') . EOL);
  62                         return;
  63                 }
  64         }
  65
  66         require_once 'include/security.php';
  67         require_once 'include/conversation.php';
  68
  69         if (!$update) {
  70                 $tabs = [];
  71
  72                 if ((local_user() || in_array($page_style, [CP_USERS_AND_GLOBAL, CP_USERS_ON_SERVER])) && empty(Config::get('system', 'singleuser'))) {
  73                         $tabs[] = [
  74                                 'label' => L10n::t('Local Community'),
  75                                 'url' => 'community/local',
  76                                 'sel' => $content == 'local' ? 'active' : '',
  77                                 'title' => L10n::t('Posts from local users on this server'),
  78                                 'id' => 'community-local-tab',
  79                                 'accesskey' => 'l'
  80                         ];
  81                 }
  82
  83                 if (local_user() || in_array($page_style, [CP_USERS_AND_GLOBAL, CP_GLOBAL_COMMUNITY])) {
  84                         $tabs[] = [
  85                                 'label' => L10n::t('Global Community'),
  86                                 'url' => 'community/global',
  87                                 'sel' => $content == 'global' ? 'active' : '',
  88                                 'title' => L10n::t('Posts from users of the whole federated network'),
  89                                 'id' => 'community-global-tab',
  90                                 'accesskey' => 'g'
  91                         ];
  92                 }
  93
  94                 $tab_tpl = get_markup_template('common_tabs.tpl');
  95                 $o .= replace_macros($tab_tpl, ['$tabs' => $tabs]);
  96
  97                 Nav::setSelected('community');
  98
  99                 // We need the editor here to be able to reshare an item.
 100                 if (local_user()) {
 101                         $x = [
 102                                 'is_owner' => true,
 103                                 'allow_location' => $a->user['allow_location'],
 104                                 'default_location' => $a->user['default-location'],
 105                                 'nickname' => $a->user['nickname'],
 106                                 'lockstate' => (is_array($a->user) && (strlen($a->user['allow_cid']) || strlen($a->user['allow_gid']) || strlen($a->user['deny_cid']) || strlen($a->user['deny_gid'])) ? 'lock' : 'unlock'),
 107                                 'acl' => populate_acl($a->user, true),
 108                                 'bang' => '',
 109                                 'visitor' => 'block',
 110                                 'profile_uid' => local_user(),
 111                         ];
 112                         $o .= status_editor($a, $x, 0, true);
 113                 }
 114         }
 115
 116         // check if we serve a mobile device and get the user settings accordingly
 117         if ($a->is_mobile) {
 118                 $itemspage_network = PConfig::get(local_user(), 'system', 'itemspage_mobile_network', 20);
 119         } else {
 120                 $itemspage_network = PConfig::get(local_user(), 'system', 'itemspage_network', 40);
 121         }
 122
 123         // now that we have the user settings, see if the theme forces
 124         // a maximum item number which is lower then the user choice
 125         if (($a->force_max_items > 0) && ($a->force_max_items < $itemspage_network)) {
 126                 $itemspage_network = $a->force_max_items;
 127         }
 128
 129         $a->set_pager_itemspage($itemspage_network);
 130
 131         $r = community_getitems($a->pager['start'], $a->pager['itemspage'], $content);
 132
 133         if (!DBM::is_result($r)) {
 134                 info(L10n::t('No results.') . EOL);
 135                 return $o;
 136         }
 137
 138         $maxpostperauthor = (int) Config::get('system', 'max_author_posts_community_page');
 139
 140         if (($maxpostperauthor != 0) && ($content == 'local')) {
 141                 $count = 1;
 142                 $previousauthor = "";
 143                 $numposts = 0;
 144                 $s = [];
 145
 146                 do {
 147                         foreach ($r as $item) {
 148                                 if ($previousauthor == $item["author-link"]) {
 149                                         ++$numposts;
 150                                 } else {
 151                                         $numposts = 0;
 152                                 }
 153                                 $previousauthor = $item["author-link"];
 154
 155                                 if (($numposts < $maxpostperauthor) && (count($s) < $a->pager['itemspage'])) {
 156                                         $s[] = $item;
 157                                 }
 158                         }
 159                         if (count($s) < $a->pager['itemspage']) {
 160                                 $r = community_getitems($a->pager['start'] + ($count * $a->pager['itemspage']), $a->pager['itemspage'], $content);
 161                         }
 162                 } while ((count($s) < $a->pager['itemspage']) && ( ++$count < 50) && (count($r) > 0));
 163         } else {
 164                 $s = $r;
 165         }
 166
 167         $o .= conversation($a, $s, 'community', $update);
 168
 169         if (!$update) {
 170                 $o .= alt_pager($a, count($r));
 171         }
 172
 173         $t = get_markup_template("community.tpl");
 174         return replace_macros($t, [
 175                 '$content' => $o,
 176                 '$header' => '',
 177                 '$show_global_community_hint' => ($content == 'global') && Config::get('system', 'show_global_community_hint'),
 178                 '$global_community_hint' => L10n::t("This community stream shows all public posts received by this node. They may not reflect the opinions of this node’s users.")
 179         ]);
 180 }
 181
 182 function community_getitems($start, $itemspage, $content)
 183 {
 184         if ($content == 'local') {
 185                 $r = dba::p("SELECT `item`.`uri`, `item`.`author-link` FROM `thread`
 186                         INNER JOIN `user` ON `user`.`uid` = `thread`.`uid` AND NOT `user`.`hidewall`
 187                         INNER JOIN `item` ON `item`.`id` = `thread`.`iid`
 188                         WHERE `thread`.`visible` AND NOT `thread`.`deleted` AND NOT `thread`.`moderated`
 189                         AND NOT `thread`.`private` AND `thread`.`wall` AND `thread`.`origin`
 190                         ORDER BY `thread`.`commented` DESC LIMIT " . intval($start) . ", " . intval($itemspage)
 191                 );
 192                 return dba::inArray($r);
 193         } elseif ($content == 'global') {
 194                 $r = dba::p("SELECT `uri` FROM `thread`
 195                                 INNER JOIN `item` ON `item`.`id` = `thread`.`iid`
 196                                 INNER JOIN `contact` AS `author` ON `author`.`id`=`item`.`author-id`
 197                                 WHERE `thread`.`uid` = 0 AND NOT `author`.`hidden` AND NOT `author`.`blocked`
 198                                 ORDER BY `thread`.`commented` DESC LIMIT " . intval($start) . ", " . intval($itemspage));
 199                 return dba::inArray($r);
 200         }
 201
 202         // Should never happen
 203         return [];
 204 }