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/>.
23 use Friendica\Content\Text\BBCode;
24 use Friendica\Content\Widget;
25 use Friendica\Core\Logger;
26 use Friendica\Core\Protocol;
27 use Friendica\Core\Renderer;
28 use Friendica\Core\Session;
29 use Friendica\Database\DBA;
31 use Friendica\Model\Contact;
32 use Friendica\Model\Item;
33 use Friendica\Model\Post;
34 use Friendica\Model\User;
35 use Friendica\Module\ActivityPub\Objects;
36 use Friendica\Network\HTTPException;
37 use Friendica\Protocol\ActivityPub;
38 use Friendica\Protocol\DFRN;
40 function display_init(App $a)
42 if (ActivityPub::isRequest()) {
43 (new Objects(DI::l10n(), DI::baseUrl(), DI::args(), DI::logger(), DI::profiler(), DI::apiResponse(), $_SERVER, ['guid' => DI::args()->getArgv()[1] ?? null]))->run();
46 if (DI::config()->get('system', 'block_public') && !Session::isAuthenticated()) {
50 $nick = ((DI::args()->getArgc() > 1) ? DI::args()->getArgv()[1] : '');
53 $item_user = local_user();
55 $fields = ['uri-id', 'parent-uri-id', 'author-id', 'author-link', 'body', 'uid', 'guid', 'gravity'];
57 // If there is only one parameter, then check if this parameter could be a guid
58 if (DI::args()->getArgc() == 2) {
61 // Does the local user have this item?
63 $item = Post::selectFirstForUser(local_user(), $fields, ['guid' => DI::args()->getArgv()[1], 'uid' => local_user()]);
64 if (DBA::isResult($item)) {
65 $nick = $a->getLoggedInUserNickname();
69 // Is this item private but could be visible to the remove visitor?
70 if (!DBA::isResult($item) && remote_user()) {
71 $item = Post::selectFirst($fields, ['guid' => DI::args()->getArgv()[1], 'private' => Item::PRIVATE, 'origin' => true]);
72 if (DBA::isResult($item)) {
73 if (!Contact::isFollower(remote_user(), $item['uid'])) {
76 $item_user = $item['uid'];
81 // Is it an item with uid=0?
82 if (!DBA::isResult($item)) {
83 $item = Post::selectFirstForUser(local_user(), $fields, ['guid' => DI::args()->getArgv()[1], 'private' => [Item::PUBLIC, Item::UNLISTED], 'uid' => 0]);
85 } elseif (DI::args()->getArgc() >= 3 && $nick == 'feed-item') {
86 $uri_id = DI::args()->getArgv()[2];
87 if (substr($uri_id, -5) == '.atom') {
88 $uri_id = substr($uri_id, 0, -5);
90 $item = Post::selectFirstForUser(local_user(), $fields, ['uri-id' => $uri_id, 'private' => [Item::PUBLIC, Item::UNLISTED], 'uid' => 0]);
93 if (!DBA::isResult($item)) {
97 if (DI::args()->getArgc() >= 3 && $nick == 'feed-item') {
98 displayShowFeed($item['uri-id'], $item['uid'], DI::args()->getArgc() > 3 && DI::args()->getArgv()[3] == 'conversation.atom');
101 if (!empty($_SERVER['HTTP_ACCEPT']) && strstr($_SERVER['HTTP_ACCEPT'], 'application/atom+xml')) {
102 Logger::info('Directly serving XML for uri-id '.$item['uri-id']);
103 displayShowFeed($item['uri-id'], $item['uid'], false);
106 if ($item['gravity'] != GRAVITY_PARENT) {
107 $parent = Post::selectFirstForUser($item_user, $fields, ['uid' => $item['uid'], 'uri-id' => $item['parent-uri-id']]);
108 $item = $parent ?: $item;
111 $profiledata = display_fetchauthor($item);
113 DI::page()['aside'] = Widget\VCard::getHTML($profiledata);
116 function display_fetchauthor($item)
118 $profiledata = Contact::getByURLForUser($item['author-link'], local_user());
120 // Check for a repeated message
121 $shared = Item::getShareArray($item);
122 if (!empty($shared) && empty($shared['comment'])) {
134 if (!empty($shared['author'])) {
135 $profiledata['name'] = $shared['author'];
138 if (!empty($shared['profile'])) {
139 $profiledata['url'] = $shared['profile'];
142 if (!empty($shared['avatar'])) {
143 $profiledata['photo'] = $shared['avatar'];
146 $profiledata['nickname'] = $profiledata['name'];
147 $profiledata['network'] = Protocol::PHANTOM;
149 $profiledata['address'] = '';
150 $profiledata['about'] = '';
152 $profiledata = Contact::getByURLForUser($profiledata['url'], local_user()) ?: $profiledata;
155 if (!empty($profiledata['photo'])) {
156 $profiledata['photo'] = DI::baseUrl()->remove($profiledata['photo']);
162 function display_content(App $a, $update = false, $update_uid = 0)
164 if (DI::config()->get('system','block_public') && !Session::isAuthenticated()) {
165 throw new HTTPException\ForbiddenException(DI::l10n()->t('Public access denied.'));
172 $force = (bool)($_REQUEST['force'] ?? false);
175 $uri_id = $_REQUEST['uri_id'];
176 $item = Post::selectFirst(['uid', 'parent-uri-id'], ['uri-id' => $uri_id, 'uid' => [0, $update_uid]], ['order' => ['uid' => true]]);
178 if ($item['uid'] != 0) {
179 $a->setProfileOwner($item['uid']);
181 $a->setProfileOwner($update_uid);
183 $parent_uri_id = $item['parent-uri-id'];
186 $uri_id = ((DI::args()->getArgc() > 2) ? DI::args()->getArgv()[2] : 0);
187 $parent_uri_id = $uri_id;
189 if (DI::args()->getArgc() == 2) {
190 $fields = ['uri-id', 'parent-uri-id', 'uid'];
193 $condition = ['guid' => DI::args()->getArgv()[1], 'uid' => [0, local_user()]];
194 $item = Post::selectFirstForUser(local_user(), $fields, $condition, ['order' => ['uid' => true]]);
195 if (DBA::isResult($item)) {
196 $uri_id = $item['uri-id'];
197 $parent_uri_id = $item['parent-uri-id'];
201 if (($parent_uri_id == 0) && remote_user()) {
202 $item = Post::selectFirst($fields, ['guid' => DI::args()->getArgv()[1], 'private' => Item::PRIVATE, 'origin' => true]);
203 if (DBA::isResult($item) && Contact::isFollower(remote_user(), $item['uid'])) {
204 $uri_id = $item['uri-id'];
205 $parent_uri_id = $item['parent-uri-id'];
209 if ($parent_uri_id == 0) {
210 $condition = ['private' => [Item::PUBLIC, Item::UNLISTED], 'guid' => DI::args()->getArgv()[1], 'uid' => 0];
211 $item = Post::selectFirstForUser(local_user(), $fields, $condition);
212 if (DBA::isResult($item)) {
213 $uri_id = $item['uri-id'];
214 $parent_uri_id = $item['parent-uri-id'];
221 throw new HTTPException\NotFoundException(DI::l10n()->t('The requested item doesn\'t exist or has been deleted.'));
224 if (!DI::pConfig()->get(local_user(), 'system', 'detailed_notif')) {
225 DI::notification()->setAllSeenForUser(local_user(), ['parent-uri-id' => $item['parent-uri-id']]);
226 DI::notify()->setAllSeenForUser(local_user(), ['parent-uri-id' => $item['parent-uri-id']]);
229 // We are displaying an "alternate" link if that post was public. See issue 2864
230 $is_public = Post::exists(['uri-id' => $uri_id, 'private' => [Item::PUBLIC, Item::UNLISTED]]);
232 // For the atom feed the nickname doesn't matter at all, we only need the item id.
233 $alternate = DI::baseUrl().'/display/feed-item/'.$uri_id.'.atom';
234 $conversation = DI::baseUrl().'/display/feed-item/' . $parent_uri_id . '/conversation.atom';
240 DI::page()['htmlhead'] .= Renderer::replaceMacros(Renderer::getMarkupTemplate('display-head.tpl'),
241 ['$alternate' => $alternate,
242 '$conversation' => $conversation]);
244 $is_remote_contact = false;
245 $item_uid = local_user();
249 if (!local_user() && !empty($parent_uri_id)) {
250 $parent = Post::selectFirst(['uid'], ['uri-id' => $parent_uri_id, 'wall' => true]);
253 if (DBA::isResult($parent)) {
254 $page_uid = $page_uid ?? 0 ?: $parent['uid'];
255 $is_remote_contact = Session::getRemoteContactID($page_uid);
256 if ($is_remote_contact) {
257 $item_uid = $parent['uid'];
260 $page_uid = $item['uid'];
263 if (!empty($page_uid) && ($page_uid != local_user())) {
264 $page_user = User::getById($page_uid);
267 $is_owner = local_user() && (in_array($page_uid, [local_user(), 0]));
269 if (!empty($page_user['hidewall']) && !$is_owner && !$is_remote_contact) {
270 throw new HTTPException\ForbiddenException(DI::l10n()->t('Access to this profile has been restricted.'));
273 // We need the editor here to be able to reshare an item.
274 if ($is_owner && !$update) {
275 $o .= DI::conversation()->statusEditor([], 0, true);
277 $sql_extra = Item::getPermissionsSQLByUserId($page_uid);
279 if (local_user() && (local_user() == $page_uid)) {
280 $condition = ['parent-uri-id' => $parent_uri_id, 'uid' => local_user(), 'unseen' => true];
281 $unseen = Post::exists($condition);
286 if ($update && !$unseen && !$force) {
290 $condition = ["`uri-id` = ? AND `uid` IN (0, ?) " . $sql_extra, $uri_id, $item_uid];
291 $fields = ['parent-uri-id', 'body', 'title', 'author-name', 'author-avatar', 'plink', 'author-id', 'owner-id', 'contact-id'];
292 $item = Post::selectFirstForUser($page_uid, $fields, $condition);
294 if (!DBA::isResult($item)) {
295 throw new HTTPException\NotFoundException(DI::l10n()->t('The requested item doesn\'t exist or has been deleted.'));
298 $item['uri-id'] = $item['parent-uri-id'];
301 $condition = ['parent-uri-id' => $parent_uri_id, 'uid' => local_user(), 'unseen' => true];
302 Item::update(['unseen' => false], $condition);
305 if (!$update && local_user()) {
306 $o .= "<script> var netargs = '?uri_id=" . $item['uri-id'] . "'; </script>";
309 $o .= DI::conversation()->create([$item], 'display', $update_uid, false, 'commented', $item_uid);
311 // Preparing the meta header
312 $description = trim(BBCode::toPlaintext($item['body']));
313 $title = trim(BBCode::toPlaintext($item['title']));
314 $author_name = $item['author-name'];
316 $image = DI::baseUrl()->remove($item['author-avatar']);
319 $title = $author_name;
322 // Limit the description to 160 characters
323 if (strlen($description) > 160) {
324 $description = substr($description, 0, 157) . '...';
327 $description = htmlspecialchars($description, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
328 $title = htmlspecialchars($title, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
329 $author_name = htmlspecialchars($author_name, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
333 if (DBA::exists('contact', ['unsearchable' => true, 'id' => [$item['contact-id'], $item['author-id'], $item['owner-id']]])) {
334 $page['htmlhead'] .= '<meta content="noindex, noarchive" name="robots" />' . "\n";
337 DI::page()['htmlhead'] .= '<meta name="author" content="'.$author_name.'" />'."\n";
338 $page['htmlhead'] .= '<meta name="title" content="'.$title.'" />'."\n";
339 $page['htmlhead'] .= '<meta name="fulltitle" content="'.$title.'" />'."\n";
340 $page['htmlhead'] .= '<meta name="description" content="'.$description.'" />'."\n";
342 // Schema.org microdata
343 $page['htmlhead'] .= '<meta itemprop="name" content="'.$title.'" />'."\n";
344 $page['htmlhead'] .= '<meta itemprop="description" content="'.$description.'" />'."\n";
345 $page['htmlhead'] .= '<meta itemprop="image" content="'.$image.'" />'."\n";
346 $page['htmlhead'] .= '<meta itemprop="author" content="'.$author_name.'" />'."\n";
349 $page['htmlhead'] .= '<meta name="twitter:card" content="summary" />'."\n";
350 $page['htmlhead'] .= '<meta name="twitter:title" content="'.$title.'" />'."\n";
351 $page['htmlhead'] .= '<meta name="twitter:description" content="'.$description.'" />'."\n";
352 $page['htmlhead'] .= '<meta name="twitter:image" content="'.DI::baseUrl().'/'.$image.'" />'."\n";
353 $page['htmlhead'] .= '<meta name="twitter:url" content="'.$item["plink"].'" />'."\n";
356 $page['htmlhead'] .= '<meta name="DC.title" content="'.$title.'" />'."\n";
357 $page['htmlhead'] .= '<meta name="DC.description" content="'.$description.'" />'."\n";
360 $page['htmlhead'] .= '<meta property="og:type" content="website" />'."\n";
361 $page['htmlhead'] .= '<meta property="og:title" content="'.$title.'" />'."\n";
362 $page['htmlhead'] .= '<meta property="og:image" content="'.DI::baseUrl().'/'.$image.'" />'."\n";
363 $page['htmlhead'] .= '<meta property="og:url" content="'.$item["plink"].'" />'."\n";
364 $page['htmlhead'] .= '<meta property="og:description" content="'.$description.'" />'."\n";
365 $page['htmlhead'] .= '<meta name="og:article:author" content="'.$author_name.'" />'."\n";
371 function displayShowFeed(int $uri_id, int $uid, bool $conversation)
373 $xml = DFRN::itemFeed($uri_id, $uid, $conversation);
375 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('The feed for this item is unavailable.'));
377 header("Content-type: application/atom+xml");