3 * @copyright Copyright (C) 2010-2022, the Friendica project
5 * @license GNU AGPL version 3 or any later version
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.
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.
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/>.
22 namespace Friendica\Module\Item;
25 use Friendica\BaseModule;
26 use Friendica\Content\Conversation;
27 use Friendica\Content\Item as ContentItem;
28 use Friendica\Content\Text\BBCode;
29 use Friendica\Core\Config\Capability\IManageConfigValues;
30 use Friendica\Core\L10n;
31 use Friendica\Core\PConfig\Capability\IManagePersonalConfigValues;
32 use Friendica\Core\Renderer;
33 use Friendica\Core\Session\Capability\IHandleUserSessions;
34 use Friendica\Model\Contact;
35 use Friendica\Model\Item;
36 use Friendica\Model\Post;
37 use Friendica\Model\Profile;
38 use Friendica\Model\User;
39 use Friendica\Module\Response;
40 use Friendica\Navigation\Notifications\Repository\Notification;
41 use Friendica\Navigation\Notifications\Repository\Notify;
42 use Friendica\Protocol\ActivityPub;
43 use Friendica\Util\Network;
44 use Friendica\Util\Profiler;
45 use Friendica\Network\HTTPException;
46 use Friendica\Content\Widget;
47 use Psr\Log\LoggerInterface;
50 * Controller to display one item and its conversation
52 class Display extends BaseModule
56 /** @var IManageConfigValues */
58 /** @var IManagePersonalConfigValues */
60 /** @var IHandleUserSessions */
64 /** @var ContentItem */
65 protected $contentItem;
66 /** @var Conversation */
67 protected $conversation;
68 /** @var Notification */
69 protected $notification;
73 public function __construct(L10n $l10n, App\BaseURL $baseUrl, App\Arguments $args, LoggerInterface $logger, Profiler $profiler, Response $response, IManageConfigValues $config, IManagePersonalConfigValues $pConfig, IHandleUserSessions $session, App $app, App\Page $page, ContentItem $contentItem, Conversation $conversation, Notification $notification, Notify $notify, array $server, array $parameters = [])
75 parent::__construct($l10n, $baseUrl, $args, $logger, $profiler, $response, $server, $parameters);
78 $this->config = $config;
79 $this->pConfig = $pConfig;
80 $this->session = $session;
82 $this->contentItem = $contentItem;
83 $this->conversation = $conversation;
84 $this->notification = $notification;
85 $this->notify = $notify;
88 protected function content(array $request = []): string
90 if (ActivityPub::isRequest()) {
91 $this->baseUrl->redirect(str_replace('display/', 'objects/', $this->args->getQueryString()));
94 if ($this->config->get('system', 'block_public') && !$this->session->isAuthenticated()) {
95 throw new HTTPException\UnauthorizedException($this->t('Access denied.'));
98 $guid = $this->parameters['guid'] ?? 0;
101 $itemUid = $this->session->getLocalUserId();
103 $fields = ['uri-id', 'parent-uri-id', 'author-id', 'author-link', 'body', 'uid', 'guid', 'gravity'];
105 // Does the local user have this item?
106 if ($this->session->getLocalUserId()) {
107 $item = Post::selectFirstForUser($this->session->getLocalUserId(), $fields, [
109 'uid' => $this->session->getLocalUserId()
113 // Is this item private but could be visible to the remove visitor?
114 if (empty($item) && $this->session->getRemoteUserId()) {
115 $item = Post::selectFirst($fields, ['guid' => $guid, 'private' => Item::PRIVATE, 'origin' => true]);
117 if (!Contact::isFollower($this->session->getRemoteUserId(), $item['uid'])) {
120 $itemUid = $item['uid'];
125 // Is it an item with uid = 0?
127 $item = Post::selectFirstForUser($this->session->getLocalUserId(), $fields, [
129 'private' => [Item::PUBLIC, Item::UNLISTED],
135 throw new HTTPException\NotFoundException($this->t('The requested item doesn\'t exist or has been deleted.'));
138 if ($item['gravity'] != Item::GRAVITY_PARENT) {
139 $parent = Post::selectFirst($fields, [
140 'uid' => [0, $itemUid],
141 'uri-id' => $item['parent-uri-id']
142 ], ['order' => ['uid' => true]]);
144 $item = $parent ?: $item;
147 if (!$this->pConfig->get($this->session->getLocalUserId(), 'system', 'detailed_notif')) {
148 $this->notification->setAllSeenForUser($this->session->getLocalUserId(), ['parent-uri-id' => $item['parent-uri-id']]);
149 $this->notify->setAllSeenForUser($this->session->getLocalUserId(), ['parent-uri-id' => $item['parent-uri-id']]);
152 $this->displaySidebar($item);
153 $this->displayHead($item['uri-id'], $item['parent-uri-id']);
157 // add the uri-id to the update_display parameter
158 if ($this->session->getLocalUserId()) {
159 $output .= "<script> var netargs = '?uri_id=" . $item['uri-id'] . "'; </script>";
162 $output .= $this->getDisplayData($item);
168 * Loads the content for the sidebar of the display page
170 * @param array $item The current item
173 * @throws HTTPException\InternalServerErrorException
174 * @throws HTTPException\NotFoundException
175 * @throws \ImagickException
177 protected function displaySidebar(array $item)
179 $shared = $this->contentItem->getSharedPost($item, ['author-link']);
180 if (!empty($shared) && empty($shared['comment'])) {
181 $author = Contact::getByURLForUser($shared['post']['author-link'], $this->session->getLocalUserId());
184 if (empty($contact)) {
185 $author = Contact::getById($item['author-id']);
188 if (Network::isLocalLink($author['url'])) {
189 Profile::load($this->app, $author['nick'], false);
191 $this->page['aside'] = Widget\VCard::getHTML($author);
194 $this->app->setProfileOwner($item['uid']);
197 protected function getDisplayData(array $item, bool $update = false, int $updateUid = 0, bool $force = false): string
199 $isRemoteContact = false;
200 $itemUid = $this->session->getLocalUserId();
203 if (!$this->session->getLocalUserId() && !empty($item['parent-uri-id'])) {
204 $parent = Post::selectFirst(['uid'], ['uri-id' => $item['parent-uri-id'], 'wall' => true]);
207 if (!empty($parent)) {
208 $pageUid = $parent['uid'];
209 $isRemoteContact = $this->session->getRemoteContactID($pageUid);
210 if ($isRemoteContact) {
211 $itemUid = $parent['uid'];
214 $pageUid = $item['uid'];
217 if (!empty($pageUid) && ($pageUid != $this->session->getLocalUserId())) {
218 $page_user = User::getById($pageUid, ['hidewall']);
221 $is_owner = $this->session->getLocalUserId() && (in_array($pageUid, [$this->session->getLocalUserId(), 0]));
223 if (!empty($page_user['hidewall']) && !$is_owner && !$isRemoteContact) {
224 throw new HTTPException\ForbiddenException($this->t('Access to this profile has been restricted.'));
227 $sql_extra = Item::getPermissionsSQLByUserId($pageUid);
229 if ($this->session->getLocalUserId() && ($this->session->getLocalUserId() == $pageUid)) {
230 $unseen = Post::exists([
231 'parent-uri-id' => $item['parent-uri-id'],
232 'uid' => $this->session->getLocalUserId(),
239 if ($update && !$unseen && !$force) {
243 $condition = ["`uri-id` = ? AND `uid` IN (0, ?) " . $sql_extra, $item['uri-id'], $itemUid];
245 'parent-uri-id', 'body', 'title', 'author-name', 'author-avatar', 'plink', 'author-id',
246 'owner-id', 'contact-id'
249 $item = Post::selectFirstForUser($pageUid, $fields, $condition);
252 $this->page['aside'] = '';
253 throw new HTTPException\NotFoundException($this->t('Unfortunately, the requested conversation isn\'t available to you.</p>
254 <p>Possible reasons include:</p>
256 <li>The top-level post isn\'t visible.</li>
257 <li>The top-level post was deleted.</li>
258 <li>The node has blocked the top-level author or the author of the shared post.</li>
259 <li>You have ignored or blocked the top-level author or the author of the shared post.</li>
263 $item['uri-id'] = $item['parent-uri-id'];
267 'parent-uri-id' => $item['parent-uri-id'],
268 'uid' => $this->session->getLocalUserId(),
271 Item::update(['unseen' => false], $condition);
274 $this->addMetaTags($item);
278 // We need the editor here to be able to reshare an item.
279 if ($is_owner && !$update) {
280 $output .= $this->conversation->statusEditor([], 0, true);
283 $output .= $this->conversation->create([$item], 'display', $updateUid, false, 'commented', $itemUid);
288 // We are displaying an "alternate" link if that post was public. See issue 2864
289 protected function displayHead(string $uriId, string $parentUriId)
291 if (Post::exists(['uri-id' => $uriId, 'private' => [Item::PUBLIC, Item::UNLISTED]])) {
292 // For the atom feed the nickname doesn't matter at all, we only need the item id.
293 $this->page['htmlhead'] .= Renderer::replaceMacros(Renderer::getMarkupTemplate('display-head.tpl'), [
294 '$alternate' => sprintf('display/feed-item/%s.atom', $uriId),
295 '$conversation' => sprintf('display/feed-item/%s/conversation.atom', $parentUriId)
301 * Adds <meta> tags to the HTML output based on an item
303 * @param array $item The item with the information for the <meta> tags
308 protected function addMetaTags(array $item)
310 // Preparing the meta header
311 $description = trim(BBCode::toPlaintext($item['body']));
312 $title = trim(BBCode::toPlaintext($item['title'] ?? ''));
313 $author_name = $item['author-name'];
315 $image = $this->baseUrl->remove($item['author-avatar']);
318 $title = $author_name;
321 // Limit the description to 160 characters
322 if (strlen($description) > 160) {
323 $description = substr($description, 0, 157) . '...';
326 $description = htmlspecialchars($description, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
327 $title = htmlspecialchars($title, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
328 $author_name = htmlspecialchars($author_name, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
332 if (Contact::exists([
333 'unsearchable' => true, 'id' => [$item['contact-id'], $item['author-id'], $item['owner-id']]
335 $page['htmlhead'] .= "<meta content=\"noindex, noarchive\" name=\"robots\" />\n";
338 $page['htmlhead'] .= sprintf("<meta name=\"author\" content=\"%s\" />\n", $author_name);
339 $page['htmlhead'] .= sprintf("<meta name=\"title\" content=\"%s\" />\n", $title);
340 $page['htmlhead'] .= sprintf("<meta name=\"fulltitle\" content=\"%s\" />\n", $title);
341 $page['htmlhead'] .= sprintf("<meta name=\"description\" content=\"%s\" />\n", $description);
343 // Schema.org microdata
344 $page['htmlhead'] .= sprintf("<meta itemprop=\"name\" content=\"%s\" />\n", $title);
345 $page['htmlhead'] .= sprintf("<meta itemprop=\"description\" content=\"%s\" />\n", $description);
346 $page['htmlhead'] .= sprintf("<meta itemprop=\"image\" content=\"%s\" />\n", $image);
347 $page['htmlhead'] .= sprintf("<meta itemprop=\"author\" content=\"%s\" />\n", $author_name);
350 $page['htmlhead'] .= "<meta name=\"twitter:card\" content=\"summary\" />\n";
351 $page['htmlhead'] .= sprintf("<meta name=\"twitter:title\" content=\"%s\" />\n", $title);
352 $page['htmlhead'] .= sprintf("<meta name=\"twitter:description\" content=\"%s\" />\n", $description);
353 $page['htmlhead'] .= sprintf("<meta name=\"twitter:image\" content=\"%s/%s\" />\n", $this->baseUrl, $image);
354 $page['htmlhead'] .= sprintf("<meta name=\"twitter:url\" content=\"%s\" />\n", $item["plink"]);
357 $page['htmlhead'] .= sprintf("<meta name=\"DC.title\" content=\"%s\" />\n", $title);
358 $page['htmlhead'] .= sprintf("<meta name=\"DC.description\" content=\"%s\" />\n", $description);
361 $page['htmlhead'] .= "<meta property=\"og:type\" content=\"website\" />\n";
362 $page['htmlhead'] .= sprintf("<meta property=\"og:title\" content=\"%s\" />\n", $title);
363 $page['htmlhead'] .= sprintf("<meta property=\"og:image\" content=\"%s/%s\" />\n", $this->baseUrl, $image);
364 $page['htmlhead'] .= sprintf("<meta property=\"og:url\" content=\"%s\" />\n", $item["plink"]);
365 $page['htmlhead'] .= sprintf("<meta property=\"og:description\" content=\"%s\" />\n", $description);
366 $page['htmlhead'] .= sprintf("<meta name=\"og:article:author\" content=\"%s\" />\n", $author_name);