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 $min_id;
  48         protected static $max_id;
  49         protected static $item_id;
  50
  51         public static function content(array $parameters = [])
  52         {
  53                 self::parseRequest($parameters);
  54
  55                 if (DI::pConfig()->get(local_user(), 'system', 'infinite_scroll')) {
  56                         $tpl = Renderer::getMarkupTemplate('infinite_scroll_head.tpl');
  57                         $o = Renderer::replaceMacros($tpl, ['$reload_uri' => DI::args()->getQueryString()]);
  58                 } else {
  59                         $o = '';
  60                 }
  61
  62                 if (empty($_GET['mode']) || ($_GET['mode'] != 'raw')) {
  63                         $tabs = [];
  64
  65                         if ((Session::isAuthenticated() || in_array(self::$page_style, [CP_USERS_AND_GLOBAL, CP_USERS_ON_SERVER])) && empty(DI::config()->get('system', 'singleuser'))) {
  66                                 $tabs[] = [
  67                                         'label' => DI::l10n()->t('Local Community'),
  68                                         'url' => 'community/local',
  69                                         'sel' => self::$content == 'local' ? 'active' : '',
  70                                         'title' => DI::l10n()->t('Posts from local users on this server'),
  71                                         'id' => 'community-local-tab',
  72                                         'accesskey' => 'l'
  73                                 ];
  74                         }
  75
  76                         if (Session::isAuthenticated() || in_array(self::$page_style, [CP_USERS_AND_GLOBAL, CP_GLOBAL_COMMUNITY])) {
  77                                 $tabs[] = [
  78                                         'label' => DI::l10n()->t('Global Community'),
  79                                         'url' => 'community/global',
  80                                         'sel' => self::$content == 'global' ? 'active' : '',
  81                                         'title' => DI::l10n()->t('Posts from users of the whole federated network'),
  82                                         'id' => 'community-global-tab',
  83                                         'accesskey' => 'g'
  84                                 ];
  85                         }
  86
  87                         $tab_tpl = Renderer::getMarkupTemplate('common_tabs.tpl');
  88                         $o .= Renderer::replaceMacros($tab_tpl, ['$tabs' => $tabs]);
  89
  90                         Nav::setSelected('community');
  91
  92                         DI::page()['aside'] .= Widget::accounts('community/' . self::$content, $parameters['accounttype'] ?? '');
  93
  94                         if (local_user() && DI::config()->get('system', 'community_no_sharer')) {
  95                                 $path = self::$content;
  96                                 if (!empty($parameters['accounttype'])) {
  97                                         $path .= '/' . $parameters['accounttype'];
  98                                 }
  99                                 $query_parameters = [];
 100
 101                                 if (!empty($_GET['min_id'])) {
 102                                         $query_parameters['min_id'] = $_GET['min_id'];
 103                                 }
 104                                 if (!empty($_GET['max_id'])) {
 105                                         $query_parameters['max_id'] = $_GET['max_id'];
 106                                 }
 107                                 if (!empty($_GET['last_commented'])) {
 108                                         $query_parameters['max_id'] = $_GET['last_commented'];
 109                                 }
 110
 111                                 $path_all = $path . (!empty($query_parameters) ? '?' . http_build_query($query_parameters) : '');
 112                                 $path_no_sharer = $path . '?' . http_build_query(array_merge($query_parameters, ['no_sharer' => true]));
 113                                 DI::page()['aside'] .= Renderer::replaceMacros(Renderer::getMarkupTemplate('widget/community_sharer.tpl'), [
 114                                         '$title'           => DI::l10n()->t('Own Contacts'),
 115                                         '$path_all'        => $path_all,
 116                                         '$path_no_sharer'  => $path_no_sharer,
 117                                         '$no_sharer'       => !empty($_REQUEST['no_sharer']),
 118                                         '$all'             => DI::l10n()->t('Include'),
 119                                         '$no_sharer_label' => DI::l10n()->t('Hide'),
 120                                 ]);
 121                         }
 122
 123                         if (Feature::isEnabled(local_user(), 'trending_tags')) {
 124                                 DI::page()['aside'] .= TrendingTags::getHTML(self::$content);
 125                         }
 126
 127                         // We need the editor here to be able to reshare an item.
 128                         if (Session::isAuthenticated()) {
 129                                 $x = [
 130                                         'is_owner' => true,
 131                                         'allow_location' => DI::app()->user['allow_location'],
 132                                         'default_location' => DI::app()->user['default-location'],
 133                                         'nickname' => DI::app()->user['nickname'],
 134                                         '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'),
 135                                         'acl' => ACL::getFullSelectorHTML(DI::page(), DI::app()->user, true),
 136                                         'bang' => '',
 137                                         'visitor' => 'block',
 138                                         'profile_uid' => local_user(),
 139                                 ];
 140                                 $o .= status_editor(DI::app(), $x, 0, true);
 141                         }
 142                 }
 143
 144                 $items = self::getItems();
 145
 146                 if (!DBA::isResult($items)) {
 147                         notice(DI::l10n()->t('No results.'));
 148                         return $o;
 149                 }
 150
 151                 $o .= conversation(DI::app(), $items, 'community', false, false, 'commented', local_user());
 152
 153                 $pager = new BoundariesPager(
 154                         DI::l10n(),
 155                         DI::args()->getQueryString(),
 156                         $items[0]['commented'],
 157                         $items[count($items) - 1]['commented'],
 158                         self::$itemsPerPage
 159                 );
 160
 161                 if (DI::pConfig()->get(local_user(), 'system', 'infinite_scroll')) {
 162                         $o .= HTML::scrollLoader();
 163                 } else {
 164                         $o .= $pager->renderMinimal(count($items));
 165                 }
 166
 167                 $t = Renderer::getMarkupTemplate("community.tpl");
 168                 return Renderer::replaceMacros($t, [
 169                         '$content' => $o,
 170                         '$header' => '',
 171                         '$show_global_community_hint' => (self::$content == 'global') && DI::config()->get('system', 'show_global_community_hint'),
 172                         '$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.")
 173                 ]);
 174         }
 175
 176         /**
 177          * Computes module parameters from the request and local configuration
 178          *
 179          * @param array $parameters
 180          * @throws HTTPException\BadRequestException
 181          * @throws HTTPException\ForbiddenException
 182          */
 183         protected static function parseRequest(array $parameters)
 184         {
 185                 if (DI::config()->get('system', 'block_public') && !Session::isAuthenticated()) {
 186                         throw new HTTPException\ForbiddenException(DI::l10n()->t('Public access denied.'));
 187                 }
 188
 189                 self::$page_style = DI::config()->get('system', 'community_page_style');
 190
 191                 if (self::$page_style == CP_NO_INTERNAL_COMMUNITY) {
 192                         throw new HTTPException\ForbiddenException(DI::l10n()->t('Access denied.'));
 193                 }
 194
 195                 self::$accounttype = User::getAccountTypeByString($parameters['accounttype'] ?? '');
 196
 197                 self::$content = $parameters['content'] ?? '';
 198                 if (!self::$content) {
 199                         if (!empty(DI::config()->get('system', 'singleuser'))) {
 200                                 // On single user systems only the global page does make sense
 201                                 self::$content = 'global';
 202                         } else {
 203                                 // When only the global community is allowed, we use this as default
 204                                 self::$content = self::$page_style == CP_GLOBAL_COMMUNITY ? 'global' : 'local';
 205                         }
 206                 }
 207
 208                 if (!in_array(self::$content, ['local', 'global'])) {
 209                         throw new HTTPException\BadRequestException(DI::l10n()->t('Community option not available.'));
 210                 }
 211
 212                 // Check if we are allowed to display the content to visitors
 213                 if (!Session::isAuthenticated()) {
 214                         $available = self::$page_style == CP_USERS_AND_GLOBAL;
 215
 216                         if (!$available) {
 217                                 $available = (self::$page_style == CP_USERS_ON_SERVER) && (self::$content == 'local');
 218                         }
 219
 220                         if (!$available) {
 221                                 $available = (self::$page_style == CP_GLOBAL_COMMUNITY) && (self::$content == 'global');
 222                         }
 223
 224                         if (!$available) {
 225                                 throw new HTTPException\ForbiddenException(DI::l10n()->t('Not available.'));
 226                         }
 227                 }
 228
 229                 if (DI::mode()->isMobile()) {
 230                         self::$itemsPerPage = DI::pConfig()->get(local_user(), 'system', 'itemspage_mobile_network',
 231                                 DI::config()->get('system', 'itemspage_network_mobile'));
 232                 } else {
 233                         self::$itemsPerPage = DI::pConfig()->get(local_user(), 'system', 'itemspage_network',
 234                                 DI::config()->get('system', 'itemspage_network'));
 235                 }
 236
 237                 // now that we have the user settings, see if the theme forces
 238                 // a maximum item number which is lower then the user choice
 239                 if ((DI::app()->force_max_items > 0) && (DI::app()->force_max_items < self::$itemsPerPage)) {
 240                         self::$itemsPerPage = DI::app()->force_max_items;
 241                 }
 242
 243                 if (!empty($_GET['item'])) {
 244                         $item = Item::selectFirst(['parent'], ['id' => $_GET['item']]);
 245                         self::$item_id = $item['parent'] ?? 0;
 246                 } else {
 247                         self::$item_id = 0;
 248                 }
 249
 250                 self::$min_id = $_GET['min_id'] ?? null;
 251                 self::$max_id   = $_GET['max_id']   ?? null;
 252                 self::$max_id   = $_GET['last_commented'] ?? self::$max_id;
 253         }
 254
 255         /**
 256          * Computes the displayed items.
 257          *
 258          * Community pages have a restriction on how many successive posts by the same author can show on any given page,
 259          * so we may have to retrieve more content beyond the first query
 260          *
 261          * @return array
 262          * @throws \Exception
 263          */
 264         protected static function getItems()
 265         {
 266                 $items = self::selectItems(self::$min_id, self::$max_id, self::$item_id, self::$itemsPerPage);
 267
 268                 $maxpostperauthor = (int) DI::config()->get('system', 'max_author_posts_community_page');
 269                 if ($maxpostperauthor != 0 && self::$content == 'local') {
 270                         $count = 1;
 271                         $previousauthor = '';
 272                         $numposts = 0;
 273                         $selected_items = [];
 274
 275                         while (count($selected_items) < self::$itemsPerPage && ++$count < 50 && count($items) > 0) {
 276                                 foreach ($items as $item) {
 277                                         if ($previousauthor == $item["author-link"]) {
 278                                                 ++$numposts;
 279                                         } else {
 280                                                 $numposts = 0;
 281                                         }
 282                                         $previousauthor = $item["author-link"];
 283
 284                                         if (($numposts < $maxpostperauthor) && (count($selected_items) < self::$itemsPerPage)) {
 285                                                 $selected_items[] = $item;
 286                                         }
 287                                 }
 288
 289                                 // If we're looking at a "previous page", the lookup continues forward in time because the list is
 290                                 // sorted in chronologically decreasing order
 291                                 if (isset(self::$min_id)) {
 292                                         self::$min_id = $items[0]['commented'];
 293                                 } else {
 294                                         // In any other case, the lookup continues backwards in time
 295                                         self::$max_id = $items[count($items) - 1]['commented'];
 296                                 }
 297
 298                                 $items = self::selectItems(self::$min_id, self::$max_id, self::$item_id, self::$itemsPerPage);
 299                         }
 300                 } else {
 301                         $selected_items = $items;
 302                 }
 303
 304                 return $selected_items;
 305         }
 306
 307         /**
 308          * Database query for the comunity page
 309          *
 310          * @param $min_id
 311          * @param $max_id
 312          * @param $itemspage
 313          * @return array
 314          * @throws \Exception
 315          * @TODO Move to repository/factory
 316          */
 317         private static function selectItems($min_id, $max_id, $item_id, $itemspage)
 318         {
 319                 if (self::$content == 'local') {
 320                         if (!is_null(self::$accounttype)) {
 321                                 $condition = ["`wall` AND `origin` AND `private` = ? AND `owner`.`contact-type` = ?", Item::PUBLIC, self::$accounttype];
 322                         } else {
 323                                 $condition = ["`wall` AND `origin` AND `private` = ?", Item::PUBLIC];
 324                         }
 325                 } elseif (self::$content == 'global') {
 326                         if (!is_null(self::$accounttype)) {
 327                                 $condition = ["`uid` = ? AND `private` = ? AND `owner`.`contact-type` = ?", 0, Item::PUBLIC, self::$accounttype];
 328                         } else {
 329                                 $condition = ["`uid` = ? AND `private` = ?", 0, Item::PUBLIC];
 330                         }
 331                 } else {
 332                         return [];
 333                 }
 334
 335                 $params = ['order' => ['commented' => true], 'limit' => $itemspage];
 336
 337                 if (!empty($item_id)) {
 338                         $condition[0] .= " AND `iid` = ?";
 339                         $condition[] = $item_id;
 340                 } else {
 341                         if (local_user() && !empty($_REQUEST['no_sharer'])) {
 342                                 $condition[0] .= " AND NOT EXISTS (SELECT `uri-id` FROM `thread` AS t1 WHERE `t1`.`uri-id` = `thread`.`uri-id` AND `t1`.`uid` = ?)";
 343                                 $condition[] = local_user();
 344                         }
 345
 346                         if (isset($max_id)) {
 347                                 $condition[0] .= " AND `commented` < ?";
 348                                 $condition[] = $max_id;
 349                         }
 350
 351                         if (isset($min_id)) {
 352                                 $condition[0] .= " AND `commented` > ?";
 353                                 $condition[] = $min_id;
 354
 355                                 // Previous page case: we want the items closest to min_id but for that we need to reverse the query order
 356                                 if (!isset($max_id)) {
 357                                         $params['order']['commented'] = false;
 358                                 }
 359                         }
 360                 }
 361
 362                 $r = Item::selectThreadForUser(0, ['uri', 'commented', 'author-link'], $condition, $params);
 363
 364                 $items = DBA::toArray($r);
 365
 366                 // Previous page case: once we get the relevant items closest to min_id, we need to restore the expected display order
 367                 if (empty($item_id) && isset($min_id) && !isset($max_id)) {
 368                         $items = array_reverse($items);
 369                 }
 370
 371                 return $items;
 372         }
 373 }