src/Module/Conversation/Community.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2020, Friendica
   4  *
   5  * @license GNU AGPL version 3 or any later version
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as
   9  * published by the Free Software Foundation, either version 3 of the
  10  * License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19  *
  20  * See update_profile.php for documentation
  21  */
  22
  23 namespace Friendica\Module\Conversation;
  24
  25 use Friendica\BaseModule;
  26 use Friendica\Content\BoundariesPager;
  27 use Friendica\Content\Feature;
  28 use Friendica\Content\Nav;
  29 use Friendica\Content\Text\HTML;
  30 use Friendica\Content\Widget;
  31 use Friendica\Content\Widget\TrendingTags;
  32 use Friendica\Core\ACL;
  33 use Friendica\Core\Renderer;
  34 use Friendica\Core\Session;
  35 use Friendica\Database\DBA;
  36 use Friendica\DI;
  37 use Friendica\Model\Item;
  38 use Friendica\Model\User;
  39 use Friendica\Network\HTTPException;
  40
  41 class Community extends BaseModule
  42 {
  43         protected static $page_style;
  44         protected static $content;
  45         protected static $accounttype;
  46         protected static $itemsPerPage;
  47         protected static $since_id;
  48         protected static $max_id;
  49
  50         public static function content(array $parameters = [])
  51         {
  52                 self::parseRequest($parameters);
  53
  54                 if (DI::pConfig()->get(local_user(), 'system', 'infinite_scroll')) {
  55                         $tpl = Renderer::getMarkupTemplate('infinite_scroll_head.tpl');
  56                         $o = Renderer::replaceMacros($tpl, ['$reload_uri' => DI::args()->getQueryString()]);
  57                 } else {
  58                         $o = '';
  59                 }
  60
  61                 if (empty($_GET['mode']) || ($_GET['mode'] != 'raw')) {
  62                         $tabs = [];
  63
  64                         if ((Session::isAuthenticated() || in_array(self::$page_style, [CP_USERS_AND_GLOBAL, CP_USERS_ON_SERVER])) && empty(DI::config()->get('system', 'singleuser'))) {
  65                                 $tabs[] = [
  66                                         'label' => DI::l10n()->t('Local Community'),
  67                                         'url' => 'community/local',
  68                                         'sel' => self::$content == 'local' ? 'active' : '',
  69                                         'title' => DI::l10n()->t('Posts from local users on this server'),
  70                                         'id' => 'community-local-tab',
  71                                         'accesskey' => 'l'
  72                                 ];
  73                         }
  74
  75                         if (Session::isAuthenticated() || in_array(self::$page_style, [CP_USERS_AND_GLOBAL, CP_GLOBAL_COMMUNITY])) {
  76                                 $tabs[] = [
  77                                         'label' => DI::l10n()->t('Global Community'),
  78                                         'url' => 'community/global',
  79                                         'sel' => self::$content == 'global' ? 'active' : '',
  80                                         'title' => DI::l10n()->t('Posts from users of the whole federated network'),
  81                                         'id' => 'community-global-tab',
  82                                         'accesskey' => 'g'
  83                                 ];
  84                         }
  85
  86                         $tab_tpl = Renderer::getMarkupTemplate('common_tabs.tpl');
  87                         $o .= Renderer::replaceMacros($tab_tpl, ['$tabs' => $tabs]);
  88
  89                         Nav::setSelected('community');
  90
  91                         DI::page()['aside'] .= Widget::accounts('community/' . self::$content, $parameters['accounttype'] ?? '');
  92
  93                         if (local_user() && DI::config()->get('system', 'community_no_sharer')) {
  94                                 $path = self::$content;
  95                                 if (!empty($parameters['accounttype'])) {
  96                                         $path .= '/' . $parameters['accounttype'];
  97                                 }
  98                                 $query_parameters = [];
  99
 100                                 if (!empty($_GET['since_id'])) {
 101                                         $query_parameters['since_id'] = $_GET['since_id'];
 102                                 }
 103                                 if (!empty($_GET['max_id'])) {
 104                                         $query_parameters['max_id'] = $_GET['max_id'];
 105                                 }
 106                                 if (!empty($_GET['last_commented'])) {
 107                                         $query_parameters['max_id'] = $_GET['last_commented'];
 108                                 }
 109
 110                                 $path_all = $path . (!empty($query_parameters) ? '?' . http_build_query($query_parameters) : '');
 111                                 $path_no_sharer = $path . '?' . http_build_query(array_merge($query_parameters, ['no_sharer' => true]));
 112                                 DI::page()['aside'] .= Renderer::replaceMacros(Renderer::getMarkupTemplate('widget/community_sharer.tpl'), [
 113                                         '$title'           => DI::l10n()->t('Own Contacts'),
 114                                         '$path_all'        => $path_all,
 115                                         '$path_no_sharer'  => $path_no_sharer,
 116                                         '$no_sharer'       => !empty($_REQUEST['no_sharer']),
 117                                         '$all'             => DI::l10n()->t('Include'),
 118                                         '$no_sharer_label' => DI::l10n()->t('Hide'),
 119                                 ]);
 120                         }
 121
 122                         if (Feature::isEnabled(local_user(), 'trending_tags')) {
 123                                 DI::page()['aside'] .= TrendingTags::getHTML(self::$content);
 124                         }
 125
 126                         // We need the editor here to be able to reshare an item.
 127                         if (Session::isAuthenticated()) {
 128                                 $x = [
 129                                         'is_owner' => true,
 130                                         'allow_location' => DI::app()->user['allow_location'],
 131                                         'default_location' => DI::app()->user['default-location'],
 132                                         'nickname' => DI::app()->user['nickname'],
 133                                         'lockstate' => (is_array(DI::app()->user) && (strlen(DI::app()->user['allow_cid']) || strlen(DI::app()->user['allow_gid']) || strlen(DI::app()->user['deny_cid']) || strlen(DI::app()->user['deny_gid'])) ? 'lock' : 'unlock'),
 134                                         'acl' => ACL::getFullSelectorHTML(DI::page(), DI::app()->user, true),
 135                                         'bang' => '',
 136                                         'visitor' => 'block',
 137                                         'profile_uid' => local_user(),
 138                                 ];
 139                                 $o .= status_editor(DI::app(), $x, 0, true);
 140                         }
 141                 }
 142
 143                 $items = self::getItems();
 144
 145                 if (!DBA::isResult($items)) {
 146                         notice(DI::l10n()->t('No results.'));
 147                         return $o;
 148                 }
 149
 150                 $o .= conversation(DI::app(), $items, 'community', false, false, 'commented', local_user());
 151
 152                 $pager = new BoundariesPager(
 153                         DI::l10n(),
 154                         DI::args()->getQueryString(),
 155                         $items[0]['commented'],
 156                         $items[count($items) - 1]['commented'],
 157                         self::$itemsPerPage
 158                 );
 159
 160                 if (DI::pConfig()->get(local_user(), 'system', 'infinite_scroll')) {
 161                         $o .= HTML::scrollLoader();
 162                 } else {
 163                         $o .= $pager->renderMinimal(count($items));
 164                 }
 165
 166                 $t = Renderer::getMarkupTemplate("community.tpl");
 167                 return Renderer::replaceMacros($t, [
 168                         '$content' => $o,
 169                         '$header' => '',
 170                         '$show_global_community_hint' => (self::$content == 'global') && DI::config()->get('system', 'show_global_community_hint'),
 171                         '$global_community_hint' => DI::l10n()->t("This community stream shows all public posts received by this node. They may not reflect the opinions of this node’s users.")
 172                 ]);
 173         }
 174
 175         /**
 176          * Computes module parameters from the request and local configuration
 177          *
 178          * @param array $parameters
 179          * @throws HTTPException\BadRequestException
 180          * @throws HTTPException\ForbiddenException
 181          */
 182         protected static function parseRequest(array $parameters)
 183         {
 184                 if (DI::config()->get('system', 'block_public') && !Session::isAuthenticated()) {
 185                         throw new HTTPException\ForbiddenException(DI::l10n()->t('Public access denied.'));
 186                 }
 187
 188                 self::$page_style = DI::config()->get('system', 'community_page_style');
 189
 190                 if (self::$page_style == CP_NO_INTERNAL_COMMUNITY) {
 191                         throw new HTTPException\ForbiddenException(DI::l10n()->t('Access denied.'));
 192                 }
 193
 194                 switch ($parameters['accounttype'] ?? '') {
 195                         case 'person':
 196                                 self::$accounttype = User::ACCOUNT_TYPE_PERSON;
 197                                 break;
 198                         case 'organisation':
 199                                 self::$accounttype = User::ACCOUNT_TYPE_ORGANISATION;
 200                                 break;
 201                         case 'news':
 202                                 self::$accounttype = User::ACCOUNT_TYPE_NEWS;
 203                                 break;
 204                         case 'community':
 205                                 self::$accounttype = User::ACCOUNT_TYPE_COMMUNITY;
 206                                 break;
 207                         default:
 208                                 self::$accounttype = null;
 209                                 break;
 210                 }
 211
 212                 self::$content = $parameters['content'] ?? '';
 213                 if (!self::$content) {
 214                         if (!empty(DI::config()->get('system', 'singleuser'))) {
 215                                 // On single user systems only the global page does make sense
 216                                 self::$content = 'global';
 217                         } else {
 218                                 // When only the global community is allowed, we use this as default
 219                                 self::$content = self::$page_style == CP_GLOBAL_COMMUNITY ? 'global' : 'local';
 220                         }
 221                 }
 222
 223                 if (!in_array(self::$content, ['local', 'global'])) {
 224                         throw new HTTPException\BadRequestException(DI::l10n()->t('Community option not available.'));
 225                 }
 226
 227                 // Check if we are allowed to display the content to visitors
 228                 if (!Session::isAuthenticated()) {
 229                         $available = self::$page_style == CP_USERS_AND_GLOBAL;
 230
 231                         if (!$available) {
 232                                 $available = (self::$page_style == CP_USERS_ON_SERVER) && (self::$content == 'local');
 233                         }
 234
 235                         if (!$available) {
 236                                 $available = (self::$page_style == CP_GLOBAL_COMMUNITY) && (self::$content == 'global');
 237                         }
 238
 239                         if (!$available) {
 240                                 throw new HTTPException\ForbiddenException(DI::l10n()->t('Not available.'));
 241                         }
 242                 }
 243
 244                 if (DI::mode()->isMobile()) {
 245                         self::$itemsPerPage = DI::pConfig()->get(local_user(), 'system', 'itemspage_mobile_network',
 246                                 DI::config()->get('system', 'itemspage_network_mobile'));
 247                 } else {
 248                         self::$itemsPerPage = DI::pConfig()->get(local_user(), 'system', 'itemspage_network',
 249                                 DI::config()->get('system', 'itemspage_network'));
 250                 }
 251
 252                 // now that we have the user settings, see if the theme forces
 253                 // a maximum item number which is lower then the user choice
 254                 if ((DI::app()->force_max_items > 0) && (DI::app()->force_max_items < self::$itemsPerPage)) {
 255                         self::$itemsPerPage = DI::app()->force_max_items;
 256                 }
 257
 258                 self::$since_id = $_GET['since_id'] ?? null;
 259                 self::$max_id   = $_GET['max_id']   ?? null;
 260                 self::$max_id   = $_GET['last_commented'] ?? self::$max_id;
 261         }
 262
 263         /**
 264          * Computes the displayed items.
 265          *
 266          * Community pages have a restriction on how many successive posts by the same author can show on any given page,
 267          * so we may have to retrieve more content beyond the first query
 268          *
 269          * @return array
 270          * @throws \Exception
 271          */
 272         protected static function getItems()
 273         {
 274                 $items = self::selectItems(self::$since_id, self::$max_id, self::$itemsPerPage);
 275
 276                 $maxpostperauthor = (int) DI::config()->get('system', 'max_author_posts_community_page');
 277                 if ($maxpostperauthor != 0 && self::$content == 'local') {
 278                         $count = 1;
 279                         $previousauthor = '';
 280                         $numposts = 0;
 281                         $selected_items = [];
 282
 283                         while (count($selected_items) < self::$itemsPerPage && ++$count < 50 && count($items) > 0) {
 284                                 foreach ($items as $item) {
 285                                         if ($previousauthor == $item["author-link"]) {
 286                                                 ++$numposts;
 287                                         } else {
 288                                                 $numposts = 0;
 289                                         }
 290                                         $previousauthor = $item["author-link"];
 291
 292                                         if (($numposts < $maxpostperauthor) && (count($selected_items) < self::$itemsPerPage)) {
 293                                                 $selected_items[] = $item;
 294                                         }
 295                                 }
 296
 297                                 // If we're looking at a "previous page", the lookup continues forward in time because the list is
 298                                 // sorted in chronologically decreasing order
 299                                 if (isset(self::$since_id)) {
 300                                         self::$since_id = $items[0]['commented'];
 301                                 } else {
 302                                         // In any other case, the lookup continues backwards in time
 303                                         self::$max_id = $items[count($items) - 1]['commented'];
 304                                 }
 305
 306                                 $items = self::selectItems(self::$since_id, self::$max_id, self::$itemsPerPage);
 307                         }
 308                 } else {
 309                         $selected_items = $items;
 310                 }
 311
 312                 return $selected_items;
 313         }
 314
 315         /**
 316          * Database query for the comunity page
 317          *
 318          * @param $since_id
 319          * @param $max_id
 320          * @param $itemspage
 321          * @return array
 322          * @throws \Exception
 323          * @TODO Move to repository/factory
 324          */
 325         private static function selectItems($since_id, $max_id, $itemspage)
 326         {
 327                 $r = false;
 328
 329                 if (self::$content == 'local') {
 330                         if (!is_null(self::$accounttype)) {
 331                                 $condition = ["`wall` AND `origin` AND `private` = ? AND `owner`.`contact-type` = ?", Item::PUBLIC, self::$accounttype];
 332                         } else {
 333                                 $condition = ["`wall` AND `origin` AND `private` = ?", Item::PUBLIC];
 334                         }
 335                 } elseif (self::$content == 'global') {
 336                         if (!is_null(self::$accounttype)) {
 337                                 $condition = ["`uid` = ? AND `private` = ? AND `owner`.`contact-type` = ?", 0, Item::PUBLIC, self::$accounttype];
 338                         } else {
 339                                 $condition = ["`uid` = ? AND `private` = ?", 0, Item::PUBLIC];
 340                         }
 341                 } else {
 342                         return [];
 343                 }
 344
 345                 if (local_user() && !empty($_REQUEST['no_sharer'])) {
 346                         $condition[0] .= " AND NOT EXISTS (SELECT `uri-id` FROM `thread` AS t1 WHERE `t1`.`uri-id` = `thread`.`uri-id` AND `t1`.`uid` = ?)";
 347                         $condition[] = local_user();
 348                 }
 349
 350                 if (isset($max_id)) {
 351                         $condition[0] .= " AND `commented` < ?";
 352                         $condition[] = $max_id;
 353                 }
 354
 355                 if (isset($since_id)) {
 356                         $condition[0] .= " AND `commented` > ?";
 357                         $condition[] = $since_id;
 358                 }
 359
 360                 $r = Item::selectThreadForUser(0, ['uri', 'commented', 'author-link'], $condition, ['order' => ['commented' => true], 'limit' => $itemspage]);
 361
 362                 return DBA::toArray($r);
 363         }
 364 }