mod/community.php

   1 <?php
   2 /**
   3  * @file mod/community.php
   4  */
   5
   6 use Friendica\App;
   7 use Friendica\Content\Nav;
   8 use Friendica\Core\ACL;
   9 use Friendica\Core\Config;
  10 use Friendica\Core\L10n;
  11 use Friendica\Core\PConfig;
  12 use Friendica\Database\dba;
  13 use Friendica\Database\DBM;
  14
  15 function community_init(App $a)
  16 {
  17         if (!local_user()) {
  18                 unset($_SESSION['theme']);
  19                 unset($_SESSION['mobile-theme']);
  20         }
  21 }
  22
  23 function community_content(App $a, $update = 0)
  24 {
  25         $o = '';
  26
  27         if (Config::get('system', 'block_public') && !local_user() && !remote_user()) {
  28                 notice(L10n::t('Public access denied.') . EOL);
  29                 return;
  30         }
  31
  32         $page_style = Config::get('system', 'community_page_style');
  33
  34         if ($page_style == CP_NO_INTERNAL_COMMUNITY) {
  35                 notice(L10n::t('Access denied.') . EOL);
  36                 return;
  37         }
  38
  39         if ($a->argc > 1) {
  40                 $content = $a->argv[1];
  41         } else {
  42                 if (!empty(Config::get('system', 'singleuser'))) {
  43                         // On single user systems only the global page does make sense
  44                         $content = 'global';
  45                 } else {
  46                         // When only the global community is allowed, we use this as default
  47                         $content = $page_style == CP_GLOBAL_COMMUNITY ? 'global' : 'local';
  48                 }
  49         }
  50
  51         if (!in_array($content, ['local', 'global'])) {
  52                 notice(L10n::t('Community option not available.') . EOL);
  53                 return;
  54         }
  55
  56         // Check if we are allowed to display the content to visitors
  57         if (!local_user()) {
  58                 $available = $page_style == CP_USERS_AND_GLOBAL;
  59
  60                 if (!$available) {
  61                         $available = ($page_style == CP_USERS_ON_SERVER) && ($content == 'local');
  62                 }
  63
  64                 if (!$available) {
  65                         $available = ($page_style == CP_GLOBAL_COMMUNITY) && ($content == 'global');
  66                 }
  67
  68                 if (!$available) {
  69                         notice(L10n::t('Not available.') . EOL);
  70                         return;
  71                 }
  72         }
  73
  74         require_once 'include/security.php';
  75         require_once 'include/conversation.php';
  76
  77         if (!$update) {
  78                 $tabs = [];
  79
  80                 if ((local_user() || in_array($page_style, [CP_USERS_AND_GLOBAL, CP_USERS_ON_SERVER])) && empty(Config::get('system', 'singleuser'))) {
  81                         $tabs[] = [
  82                                 'label' => L10n::t('Local Community'),
  83                                 'url' => 'community/local',
  84                                 'sel' => $content == 'local' ? 'active' : '',
  85                                 'title' => L10n::t('Posts from local users on this server'),
  86                                 'id' => 'community-local-tab',
  87                                 'accesskey' => 'l'
  88                         ];
  89                 }
  90
  91                 if (local_user() || in_array($page_style, [CP_USERS_AND_GLOBAL, CP_GLOBAL_COMMUNITY])) {
  92                         $tabs[] = [
  93                                 'label' => L10n::t('Global Community'),
  94                                 'url' => 'community/global',
  95                                 'sel' => $content == 'global' ? 'active' : '',
  96                                 'title' => L10n::t('Posts from users of the whole federated network'),
  97                                 'id' => 'community-global-tab',
  98                                 'accesskey' => 'g'
  99                         ];
 100                 }
 101
 102                 $tab_tpl = get_markup_template('common_tabs.tpl');
 103                 $o .= replace_macros($tab_tpl, ['$tabs' => $tabs]);
 104
 105                 Nav::setSelected('community');
 106
 107                 // We need the editor here to be able to reshare an item.
 108                 if (local_user()) {
 109                         $x = [
 110                                 'is_owner' => true,
 111                                 'allow_location' => $a->user['allow_location'],
 112                                 'default_location' => $a->user['default-location'],
 113                                 'nickname' => $a->user['nickname'],
 114                                 'lockstate' => (is_array($a->user) && (strlen($a->user['allow_cid']) || strlen($a->user['allow_gid']) || strlen($a->user['deny_cid']) || strlen($a->user['deny_gid'])) ? 'lock' : 'unlock'),
 115                                 'acl' => ACL::getFullSelectorHTML($a->user, true),
 116                                 'bang' => '',
 117                                 'visitor' => 'block',
 118                                 'profile_uid' => local_user(),
 119                         ];
 120                         $o .= status_editor($a, $x, 0, true);
 121                 }
 122         }
 123
 124         // check if we serve a mobile device and get the user settings accordingly
 125         if ($a->is_mobile) {
 126                 $itemspage_network = PConfig::get(local_user(), 'system', 'itemspage_mobile_network', 20);
 127         } else {
 128                 $itemspage_network = PConfig::get(local_user(), 'system', 'itemspage_network', 40);
 129         }
 130
 131         // now that we have the user settings, see if the theme forces
 132         // a maximum item number which is lower then the user choice
 133         if (($a->force_max_items > 0) && ($a->force_max_items < $itemspage_network)) {
 134                 $itemspage_network = $a->force_max_items;
 135         }
 136
 137         $a->set_pager_itemspage($itemspage_network);
 138
 139         $r = community_getitems($a->pager['start'], $a->pager['itemspage'], $content);
 140
 141         if (!DBM::is_result($r)) {
 142                 info(L10n::t('No results.') . EOL);
 143                 return $o;
 144         }
 145
 146         $maxpostperauthor = (int) Config::get('system', 'max_author_posts_community_page');
 147
 148         if (($maxpostperauthor != 0) && ($content == 'local')) {
 149                 $count = 1;
 150                 $previousauthor = "";
 151                 $numposts = 0;
 152                 $s = [];
 153
 154                 do {
 155                         foreach ($r as $item) {
 156                                 if ($previousauthor == $item["author-link"]) {
 157                                         ++$numposts;
 158                                 } else {
 159                                         $numposts = 0;
 160                                 }
 161                                 $previousauthor = $item["author-link"];
 162
 163                                 if (($numposts < $maxpostperauthor) && (count($s) < $a->pager['itemspage'])) {
 164                                         $s[] = $item;
 165                                 }
 166                         }
 167                         if (count($s) < $a->pager['itemspage']) {
 168                                 $r = community_getitems($a->pager['start'] + ($count * $a->pager['itemspage']), $a->pager['itemspage'], $content);
 169                         }
 170                 } while ((count($s) < $a->pager['itemspage']) && ( ++$count < 50) && (count($r) > 0));
 171         } else {
 172                 $s = $r;
 173         }
 174
 175         $o .= conversation($a, $s, 'community', $update, false, 'commented', local_user());
 176
 177         if (!$update) {
 178                 $o .= alt_pager($a, count($r));
 179         }
 180
 181         $t = get_markup_template("community.tpl");
 182         return replace_macros($t, [
 183                 '$content' => $o,
 184                 '$header' => '',
 185                 '$show_global_community_hint' => ($content == 'global') && Config::get('system', 'show_global_community_hint'),
 186                 '$global_community_hint' => L10n::t("This community stream shows all public posts received by this node. They may not reflect the opinions of this node’s users.")
 187         ]);
 188 }
 189
 190 function community_getitems($start, $itemspage, $content)
 191 {
 192         if ($content == 'local') {
 193                 $r = dba::p("SELECT `item`.`uri`, `author`.`url` AS `author-link` FROM `thread`
 194                         INNER JOIN `user` ON `user`.`uid` = `thread`.`uid` AND NOT `user`.`hidewall`
 195                         INNER JOIN `item` ON `item`.`id` = `thread`.`iid`
 196                         INNER JOIN `contact` AS `author` ON `author`.`id`=`item`.`author-id`
 197                         WHERE `thread`.`visible` AND NOT `thread`.`deleted` AND NOT `thread`.`moderated`
 198                         AND NOT `thread`.`private` AND `thread`.`wall` AND `thread`.`origin`
 199                         ORDER BY `thread`.`commented` DESC LIMIT " . intval($start) . ", " . intval($itemspage)
 200                 );
 201                 return dba::inArray($r);
 202         } elseif ($content == 'global') {
 203                 $r = dba::p("SELECT `uri` FROM `thread`
 204                                 INNER JOIN `item` ON `item`.`id` = `thread`.`iid`
 205                                 INNER JOIN `contact` AS `author` ON `author`.`id`=`item`.`author-id`
 206                                 WHERE `thread`.`uid` = 0 AND NOT `author`.`hidden` AND NOT `author`.`blocked`
 207                                 ORDER BY `thread`.`commented` DESC LIMIT " . intval($start) . ", " . intval($itemspage));
 208                 return dba::inArray($r);
 209         }
 210
 211         // Should never happen
 212         return [];
 213 }