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\Content\Pager;
   9 use Friendica\Core\ACL;
  10 use Friendica\Core\Config;
  11 use Friendica\Core\L10n;
  12 use Friendica\Core\PConfig;
  13 use Friendica\Core\Renderer;
  14 use Friendica\Database\DBA;
  15 use Friendica\Model\Contact;
  16 use Friendica\Model\Item;
  17 use Friendica\Model\User;
  18
  19 function community_init(App $a)
  20 {
  21         if (!local_user()) {
  22                 unset($_SESSION['theme']);
  23                 unset($_SESSION['mobile-theme']);
  24         }
  25 }
  26
  27 function community_content(App $a, $update = 0)
  28 {
  29         $o = '';
  30
  31         if (Config::get('system', 'block_public') && !local_user() && !remote_user()) {
  32                 notice(L10n::t('Public access denied.') . EOL);
  33                 return;
  34         }
  35
  36         $page_style = Config::get('system', 'community_page_style');
  37
  38         if ($page_style == CP_NO_INTERNAL_COMMUNITY) {
  39                 notice(L10n::t('Access denied.') . EOL);
  40                 return;
  41         }
  42
  43         $accounttype = null;
  44
  45         if ($a->argc > 2) {
  46                 switch ($a->argv[2]) {
  47                         case 'person':
  48                                 $accounttype = User::ACCOUNT_TYPE_PERSON;
  49                                 break;
  50                         case 'organisation':
  51                                 $accounttype = User::ACCOUNT_TYPE_ORGANISATION;
  52                                 break;
  53                         case 'news':
  54                                 $accounttype = User::ACCOUNT_TYPE_NEWS;
  55                                 break;
  56                         case 'community':
  57                                 $accounttype = User::ACCOUNT_TYPE_COMMUNITY;
  58                                 break;
  59                 }
  60         }
  61
  62         if ($a->argc > 1) {
  63                 $content = $a->argv[1];
  64         } else {
  65                 if (!empty(Config::get('system', 'singleuser'))) {
  66                         // On single user systems only the global page does make sense
  67                         $content = 'global';
  68                 } else {
  69                         // When only the global community is allowed, we use this as default
  70                         $content = $page_style == CP_GLOBAL_COMMUNITY ? 'global' : 'local';
  71                 }
  72         }
  73
  74         if (!in_array($content, ['local', 'global'])) {
  75                 notice(L10n::t('Community option not available.') . EOL);
  76                 return;
  77         }
  78
  79         // Check if we are allowed to display the content to visitors
  80         if (!local_user()) {
  81                 $available = $page_style == CP_USERS_AND_GLOBAL;
  82
  83                 if (!$available) {
  84                         $available = ($page_style == CP_USERS_ON_SERVER) && ($content == 'local');
  85                 }
  86
  87                 if (!$available) {
  88                         $available = ($page_style == CP_GLOBAL_COMMUNITY) && ($content == 'global');
  89                 }
  90
  91                 if (!$available) {
  92                         notice(L10n::t('Not available.') . EOL);
  93                         return;
  94                 }
  95         }
  96
  97         if (!$update) {
  98                 $tabs = [];
  99
 100                 if ((local_user() || in_array($page_style, [CP_USERS_AND_GLOBAL, CP_USERS_ON_SERVER])) && empty(Config::get('system', 'singleuser'))) {
 101                         $tabs[] = [
 102                                 'label' => L10n::t('Local Community'),
 103                                 'url' => 'community/local',
 104                                 'sel' => $content == 'local' ? 'active' : '',
 105                                 'title' => L10n::t('Posts from local users on this server'),
 106                                 'id' => 'community-local-tab',
 107                                 'accesskey' => 'l'
 108                         ];
 109                 }
 110
 111                 if (local_user() || in_array($page_style, [CP_USERS_AND_GLOBAL, CP_GLOBAL_COMMUNITY])) {
 112                         $tabs[] = [
 113                                 'label' => L10n::t('Global Community'),
 114                                 'url' => 'community/global',
 115                                 'sel' => $content == 'global' ? 'active' : '',
 116                                 'title' => L10n::t('Posts from users of the whole federated network'),
 117                                 'id' => 'community-global-tab',
 118                                 'accesskey' => 'g'
 119                         ];
 120                 }
 121
 122                 $tab_tpl = Renderer::getMarkupTemplate('common_tabs.tpl');
 123                 $o .= Renderer::replaceMacros($tab_tpl, ['$tabs' => $tabs]);
 124
 125                 Nav::setSelected('community');
 126
 127                 // We need the editor here to be able to reshare an item.
 128                 if (local_user()) {
 129                         $x = [
 130                                 'is_owner' => true,
 131                                 'allow_location' => $a->user['allow_location'],
 132                                 'default_location' => $a->user['default-location'],
 133                                 'nickname' => $a->user['nickname'],
 134                                 'lockstate' => (is_array($a->user) && (strlen($a->user['allow_cid']) || strlen($a->user['allow_gid']) || strlen($a->user['deny_cid']) || strlen($a->user['deny_gid'])) ? 'lock' : 'unlock'),
 135                                 'acl' => ACL::getFullSelectorHTML($a->user, true),
 136                                 'bang' => '',
 137                                 'visitor' => 'block',
 138                                 'profile_uid' => local_user(),
 139                         ];
 140                         $o .= status_editor($a, $x, 0, true);
 141                 }
 142         }
 143
 144         // check if we serve a mobile device and get the user settings accordingly
 145         if ($a->is_mobile) {
 146                 $itemspage_network = PConfig::get(local_user(), 'system', 'itemspage_mobile_network', 20);
 147         } else {
 148                 $itemspage_network = PConfig::get(local_user(), 'system', 'itemspage_network', 40);
 149         }
 150
 151         // now that we have the user settings, see if the theme forces
 152         // a maximum item number which is lower then the user choice
 153         if (($a->force_max_items > 0) && ($a->force_max_items < $itemspage_network)) {
 154                 $itemspage_network = $a->force_max_items;
 155         }
 156
 157         $pager = new Pager($a->query_string, $itemspage_network);
 158
 159         $r = community_getitems($pager->getStart(), $pager->getItemsPerPage(), $content, $accounttype);
 160
 161         if (!DBA::isResult($r)) {
 162                 info(L10n::t('No results.') . EOL);
 163                 return $o;
 164         }
 165
 166         $maxpostperauthor = (int) Config::get('system', 'max_author_posts_community_page');
 167
 168         if (($maxpostperauthor != 0) && ($content == 'local')) {
 169                 $count = 1;
 170                 $previousauthor = "";
 171                 $numposts = 0;
 172                 $s = [];
 173
 174                 do {
 175                         foreach ($r as $item) {
 176                                 if ($previousauthor == $item["author-link"]) {
 177                                         ++$numposts;
 178                                 } else {
 179                                         $numposts = 0;
 180                                 }
 181                                 $previousauthor = $item["author-link"];
 182
 183                                 if (($numposts < $maxpostperauthor) && (count($s) < $pager->getItemsPerPage())) {
 184                                         $s[] = $item;
 185                                 }
 186                         }
 187                         if (count($s) < $pager->getItemsPerPage()) {
 188                                 $r = community_getitems($pager->getStart() + ($count * $pager->getItemsPerPage()), $pager->getItemsPerPage(), $content, $accounttype);
 189                         }
 190                 } while ((count($s) < $pager->getItemsPerPage()) && ( ++$count < 50) && (count($r) > 0));
 191         } else {
 192                 $s = $r;
 193         }
 194
 195         $o .= conversation($a, $s, $pager, 'community', $update, false, 'commented', local_user());
 196
 197         if (!$update) {
 198                 $o .= $pager->renderMinimal(count($r));
 199         }
 200
 201         $t = Renderer::getMarkupTemplate("community.tpl");
 202         return Renderer::replaceMacros($t, [
 203                 '$content' => $o,
 204                 '$header' => '',
 205                 '$show_global_community_hint' => ($content == 'global') && Config::get('system', 'show_global_community_hint'),
 206                 '$global_community_hint' => L10n::t("This community stream shows all public posts received by this node. They may not reflect the opinions of this node’s users.")
 207         ]);
 208 }
 209
 210 function community_getitems($start, $itemspage, $content, $accounttype)
 211 {
 212         if ($content == 'local') {
 213                 if (!is_null($accounttype)) {
 214                         $sql_accounttype = " AND `user`.`account-type` = ?";
 215                         $values = [$accounttype, $start, $itemspage];
 216                 } else {
 217                         $sql_accounttype = "";
 218                         $values = [$start, $itemspage];
 219                 }
 220
 221                 $r = DBA::p("SELECT `item`.`uri`, `author`.`url` AS `author-link` FROM `thread`
 222                         STRAIGHT_JOIN `user` ON `user`.`uid` = `thread`.`uid` AND NOT `user`.`hidewall`
 223                         STRAIGHT_JOIN `item` ON `item`.`id` = `thread`.`iid`
 224                         STRAIGHT_JOIN `contact` AS `author` ON `author`.`id`=`item`.`author-id`
 225                         WHERE `thread`.`visible` AND NOT `thread`.`deleted` AND NOT `thread`.`moderated`
 226                         AND NOT `thread`.`private` AND `thread`.`wall` AND `thread`.`origin` $sql_accounttype
 227                         ORDER BY `thread`.`commented` DESC LIMIT ?, ?", $values);
 228                 return DBA::toArray($r);
 229         } elseif ($content == 'global') {
 230                 if (!is_null($accounttype)) {
 231                         $condition = ["`uid` = ? AND `owner`.`contact-type` = ?", 0, $accounttype];
 232                 } else {
 233                         $condition = ['uid' => 0];
 234                 }
 235
 236                 $r = Item::selectThreadForUser(0, ['uri'], $condition, ['order' => ['commented' => true], 'limit' => [$start, $itemspage]]);
 237                 return DBA::toArray($r);
 238         }
 239
 240         // Should never happen
 241         return [];
 242 }