Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
/**
* @copyright Copyright (C) 2020, Friendica
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
* See update_profile.php for documentation
*/
namespace Friendica\Module\Conversation;
use Friendica\BaseModule;
use Friendica\Content\BoundariesPager;
use Friendica\Content\Feature;
use Friendica\Content\Nav;
use Friendica\Content\Text\HTML;
use Friendica\Content\Widget;
use Friendica\Content\Widget\TrendingTags;
use Friendica\Core\ACL;
use Friendica\Core\Renderer;
use Friendica\Core\Session;
use Friendica\Database\DBA;
use Friendica\DI;
use Friendica\Model\Item;
use Friendica\Model\Post;
use Friendica\Model\User;
use Friendica\Network\HTTPException;
class Community extends BaseModule
{
protected static $page_style;
protected static $content;
protected static $accountTypeString;
protected static $accountType;
protected static $itemsPerPage;
protected static $min_id;
protected static $max_id;
protected static $item_id;
public static function content(array $parameters = [])
{
self::parseRequest($parameters);
if (DI::pConfig()->get(local_user(), 'system', 'infinite_scroll')) {
$tpl = Renderer::getMarkupTemplate('infinite_scroll_head.tpl');
$o = Renderer::replaceMacros($tpl, ['$reload_uri' => DI::args()->getQueryString()]);
} else {
$o = '';
}
if (empty($_GET['mode']) || ($_GET['mode'] != 'raw')) {
$tabs = [];
if ((Session::isAuthenticated() || in_array(self::$page_style, [CP_USERS_AND_GLOBAL, CP_USERS_ON_SERVER])) && empty(DI::config()->get('system', 'singleuser'))) {
$tabs[] = [
'label' => DI::l10n()->t('Local Community'),
'url' => 'community/local',
'sel' => self::$content == 'local' ? 'active' : '',
'title' => DI::l10n()->t('Posts from local users on this server'),
'id' => 'community-local-tab',
'accesskey' => 'l'
];
}
if (Session::isAuthenticated() || in_array(self::$page_style, [CP_USERS_AND_GLOBAL, CP_GLOBAL_COMMUNITY])) {
$tabs[] = [
'label' => DI::l10n()->t('Global Community'),
'url' => 'community/global',
'sel' => self::$content == 'global' ? 'active' : '',
'title' => DI::l10n()->t('Posts from users of the whole federated network'),
'id' => 'community-global-tab',
'accesskey' => 'g'
];
}
$tab_tpl = Renderer::getMarkupTemplate('common_tabs.tpl');
$o .= Renderer::replaceMacros($tab_tpl, ['$tabs' => $tabs]);
Nav::setSelected('community');
DI::page()['aside'] .= Widget::accounttypes('community/' . self::$content, self::$accountTypeString);
if (local_user() && DI::config()->get('system', 'community_no_sharer')) {
$path = self::$content;
if (!empty($parameters['accounttype'])) {
$path .= '/' . $parameters['accounttype'];
}
$query_parameters = [];
if (!empty($_GET['min_id'])) {
$query_parameters['min_id'] = $_GET['min_id'];
}
if (!empty($_GET['max_id'])) {
$query_parameters['max_id'] = $_GET['max_id'];
}
if (!empty($_GET['last_commented'])) {
$query_parameters['max_id'] = $_GET['last_commented'];
}
$path_all = $path . (!empty($query_parameters) ? '?' . http_build_query($query_parameters) : '');
$path_no_sharer = $path . '?' . http_build_query(array_merge($query_parameters, ['no_sharer' => true]));
DI::page()['aside'] .= Renderer::replaceMacros(Renderer::getMarkupTemplate('widget/community_sharer.tpl'), [
'$title' => DI::l10n()->t('Own Contacts'),
'$path_all' => $path_all,
'$path_no_sharer' => $path_no_sharer,
'$no_sharer' => !empty($_REQUEST['no_sharer']),
'$all' => DI::l10n()->t('Include'),
'$no_sharer_label' => DI::l10n()->t('Hide'),
]);
}
if (Feature::isEnabled(local_user(), 'trending_tags')) {
DI::page()['aside'] .= TrendingTags::getHTML(self::$content);
}
// We need the editor here to be able to reshare an item.
if (Session::isAuthenticated()) {
$x = [
'is_owner' => true,
'allow_location' => DI::app()->user['allow_location'],
'default_location' => DI::app()->user['default-location'],
'nickname' => DI::app()->user['nickname'],
'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'),
'acl' => ACL::getFullSelectorHTML(DI::page(), DI::app()->user, true),
'bang' => '',
'visitor' => 'block',
'profile_uid' => local_user(),
];
$o .= status_editor(DI::app(), $x, 0, true);
}
}
$items = self::getItems();
if (!DBA::isResult($items)) {
notice(DI::l10n()->t('No results.'));
return $o;
}
$o .= conversation(DI::app(), $items, 'community', false, false, 'commented', local_user());
$pager = new BoundariesPager(
DI::l10n(),
DI::args()->getQueryString(),
$items[0]['commented'],
$items[count($items) - 1]['commented'],
self::$itemsPerPage
);
if (DI::pConfig()->get(local_user(), 'system', 'infinite_scroll')) {
$o .= HTML::scrollLoader();
} else {
$o .= $pager->renderMinimal(count($items));
}
$t = Renderer::getMarkupTemplate("community.tpl");
return Renderer::replaceMacros($t, [
'$content' => $o,
'$header' => '',
'$show_global_community_hint' => (self::$content == 'global') && DI::config()->get('system', 'show_global_community_hint'),
'$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.")
]);
}
/**
* Computes module parameters from the request and local configuration
*
* @param array $parameters
* @throws HTTPException\BadRequestException
* @throws HTTPException\ForbiddenException
*/
protected static function parseRequest(array $parameters)
{
if (DI::config()->get('system', 'block_public') && !Session::isAuthenticated()) {
throw new HTTPException\ForbiddenException(DI::l10n()->t('Public access denied.'));
}
self::$page_style = DI::config()->get('system', 'community_page_style');
if (self::$page_style == CP_NO_INTERNAL_COMMUNITY) {
throw new HTTPException\ForbiddenException(DI::l10n()->t('Access denied.'));
}
self::$accountTypeString = $_GET['accounttype'] ?? $parameters['accounttype'] ?? '';
self::$accountType = User::getAccountTypeByString(self::$accountTypeString);
self::$content = $parameters['content'] ?? '';
if (!self::$content) {
if (!empty(DI::config()->get('system', 'singleuser'))) {
// On single user systems only the global page does make sense
self::$content = 'global';
} else {
// When only the global community is allowed, we use this as default
self::$content = self::$page_style == CP_GLOBAL_COMMUNITY ? 'global' : 'local';
}
}
if (!in_array(self::$content, ['local', 'global'])) {
throw new HTTPException\BadRequestException(DI::l10n()->t('Community option not available.'));
}
// Check if we are allowed to display the content to visitors
if (!Session::isAuthenticated()) {
$available = self::$page_style == CP_USERS_AND_GLOBAL;
if (!$available) {
$available = (self::$page_style == CP_USERS_ON_SERVER) && (self::$content == 'local');
}
if (!$available) {
$available = (self::$page_style == CP_GLOBAL_COMMUNITY) && (self::$content == 'global');
}
if (!$available) {
throw new HTTPException\ForbiddenException(DI::l10n()->t('Not available.'));
}
}
if (DI::mode()->isMobile()) {
self::$itemsPerPage = DI::pConfig()->get(local_user(), 'system', 'itemspage_mobile_network',
DI::config()->get('system', 'itemspage_network_mobile'));
} else {
self::$itemsPerPage = DI::pConfig()->get(local_user(), 'system', 'itemspage_network',
DI::config()->get('system', 'itemspage_network'));
}
if (!empty($_GET['item'])) {
$item = Post::selectFirst(['parent'], ['id' => $_GET['item']]);
self::$item_id = $item['parent'] ?? 0;
} else {
self::$item_id = 0;
}
self::$min_id = $_GET['min_id'] ?? null;
self::$max_id = $_GET['max_id'] ?? null;
self::$max_id = $_GET['last_commented'] ?? self::$max_id;
}
/**
* Computes the displayed items.
*
* Community pages have a restriction on how many successive posts by the same author can show on any given page,
* so we may have to retrieve more content beyond the first query
*
* @return array
* @throws \Exception
*/
protected static function getItems()
{
$items = self::selectItems(self::$min_id, self::$max_id, self::$item_id, self::$itemsPerPage);
$maxpostperauthor = (int) DI::config()->get('system', 'max_author_posts_community_page');
if ($maxpostperauthor != 0 && self::$content == 'local') {
$count = 1;
$previousauthor = '';
$numposts = 0;
$selected_items = [];
while (count($selected_items) < self::$itemsPerPage && ++$count < 50 && count($items) > 0) {
foreach ($items as $item) {
if ($previousauthor == $item["author-link"]) {
++$numposts;
} else {
$numposts = 0;
}
$previousauthor = $item["author-link"];
if (($numposts < $maxpostperauthor) && (count($selected_items) < self::$itemsPerPage)) {
$selected_items[] = $item;
}
}
// If we're looking at a "previous page", the lookup continues forward in time because the list is
// sorted in chronologically decreasing order
if (isset(self::$min_id)) {
self::$min_id = $items[0]['commented'];
} else {
// In any other case, the lookup continues backwards in time
self::$max_id = $items[count($items) - 1]['commented'];
}
$items = self::selectItems(self::$min_id, self::$max_id, self::$item_id, self::$itemsPerPage);
}
} else {
$selected_items = $items;
}
return $selected_items;
}
/**
* Database query for the comunity page
*
* @param $min_id
* @param $max_id
* @param $itemspage
* @return array
* @throws \Exception
* @TODO Move to repository/factory
*/
private static function selectItems($min_id, $max_id, $item_id, $itemspage)
{
if (self::$content == 'local') {
if (!is_null(self::$accountType)) {
$condition = ["`wall` AND `origin` AND `private` = ? AND `owner-contact-type` = ?", Item::PUBLIC, self::$accountType];
} else {
$condition = ["`wall` AND `origin` AND `private` = ?", Item::PUBLIC];
}
} elseif (self::$content == 'global') {
if (!is_null(self::$accountType)) {
$condition = ["`uid` = ? AND `private` = ? AND `owner-contact-type` = ?", 0, Item::PUBLIC, self::$accountType];
} else {
$condition = ["`uid` = ? AND `private` = ?", 0, Item::PUBLIC];
}
} else {
return [];
}
$params = ['order' => ['commented' => true], 'limit' => $itemspage];
if (!empty($item_id)) {
$condition[0] .= " AND `id` = ?";
$condition[] = $item_id;
} else {
if (local_user() && !empty($_REQUEST['no_sharer'])) {
$condition[0] .= " AND NOT EXISTS (SELECT `uri-id` FROM `post-user` WHERE `post-user`.`uri-id` = `post-thread-user-view`.`uri-id` AND `post-user`.`uid` = ?)";
$condition[] = local_user();
}
if (isset($max_id)) {
$condition[0] .= " AND `commented` < ?";
$condition[] = $max_id;
}
if (isset($min_id)) {
$condition[0] .= " AND `commented` > ?";
$condition[] = $min_id;
// Previous page case: we want the items closest to min_id but for that we need to reverse the query order
if (!isset($max_id)) {
$params['order']['commented'] = false;
}
}
}
$r = Post::selectThreadForUser(0, ['uri-id', 'commented', 'author-link'], $condition, $params);
$items = Post::toArray($r);
// Previous page case: once we get the relevant items closest to min_id, we need to restore the expected display order
if (empty($item_id) && isset($min_id) && !isset($max_id)) {
$items = array_reverse($items);
}
return $items;
}
}