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