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