3 * @copyright Copyright (C) 2010-2021, 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\ACL;
26 use Friendica\Core\Logger;
27 use Friendica\Core\Protocol;
28 use Friendica\Core\Renderer;
29 use Friendica\Core\Session;
30 use Friendica\Database\DBA;
32 use Friendica\Model\Contact;
33 use Friendica\Model\Item;
34 use Friendica\Model\Post;
35 use Friendica\Model\User;
36 use Friendica\Module\ActivityPub\Objects;
37 use Friendica\Network\HTTPException;
38 use Friendica\Protocol\ActivityPub;
39 use Friendica\Protocol\DFRN;
40 use Friendica\Util\Strings;
42 function display_init(App $a)
44 if (ActivityPub::isRequest()) {
45 Objects::rawContent(['guid' => $a->argv[1] ?? null]);
48 if (DI::config()->get('system', 'block_public') && !Session::isAuthenticated()) {
52 $nick = (($a->argc > 1) ? $a->argv[1] : '');
55 $item_user = local_user();
57 $fields = ['uri-id', 'parent-uri-id', 'author-id', 'author-link', 'body', 'uid', 'guid', 'gravity'];
59 // If there is only one parameter, then check if this parameter could be a guid
63 // Does the local user have this item?
65 $item = Post::selectFirstForUser(local_user(), $fields, ['guid' => $a->argv[1], 'uid' => local_user()]);
66 if (DBA::isResult($item)) {
67 $nick = $a->user['nickname'];
71 // Is this item private but could be visible to the remove visitor?
72 if (!DBA::isResult($item) && remote_user()) {
73 $item = Post::selectFirst($fields, ['guid' => $a->argv[1], 'private' => Item::PRIVATE, 'origin' => true]);
74 if (DBA::isResult($item)) {
75 if (!Contact::isFollower(remote_user(), $item['uid'])) {
78 $item_user = $item['uid'];
83 // Is it an item with uid=0?
84 if (!DBA::isResult($item)) {
85 $item = Post::selectFirstForUser(local_user(), $fields, ['guid' => $a->argv[1], 'private' => [Item::PUBLIC, Item::UNLISTED], 'uid' => 0]);
87 } elseif ($a->argc >= 3 && $nick == 'feed-item') {
88 $uri_id = $a->argv[2];
89 if (substr($uri_id, -5) == '.atom') {
90 $uri_id = substr($uri_id, 0, -5);
92 $item = Post::selectFirstForUser(local_user(), $fields, ['uri-id' => $uri_id, 'private' => [Item::PUBLIC, Item::UNLISTED], 'uid' => 0]);
95 if (!DBA::isResult($item)) {
99 if ($a->argc >= 3 && $nick == 'feed-item') {
100 displayShowFeed($item['uri-id'], $item['uid'], $a->argc > 3 && $a->argv[3] == 'conversation.atom');
103 if (!empty($_SERVER['HTTP_ACCEPT']) && strstr($_SERVER['HTTP_ACCEPT'], 'application/atom+xml')) {
104 Logger::log('Directly serving XML for uri-id '.$item['uri-id'], Logger::DEBUG);
105 displayShowFeed($item['uri-id'], $item['uid'], false);
108 if ($item['gravity'] != GRAVITY_PARENT) {
109 $parent = Post::selectFirstForUser($item_user, $fields, ['uid' => $item['uid'], 'uri-id' => $item['parent-uri-id']]);
110 $item = $parent ?: $item;
113 $profiledata = display_fetchauthor($item);
115 DI::page()['aside'] = Widget\VCard::getHTML($profiledata);
118 function display_fetchauthor($item)
120 $profiledata = Contact::getByURLForUser($item['author-link'], local_user());
122 // Check for a repeated message
123 $shared = Item::getShareArray($item);
124 if (!empty($shared) && empty($shared['comment'])) {
126 $profiledata['uid'] = -1;
127 $profiledata['id'] = -1;
128 $profiledata['nickname'] = '';
129 $profiledata['name'] = '';
130 $profiledata['picdate'] = '';
131 $profiledata['photo'] = '';
132 $profiledata['url'] = '';
133 $profiledata['network'] = '';
135 if (!empty($shared['author'])) {
136 $profiledata['name'] = $shared['author'];
139 if (!empty($shared['profile'])) {
140 $profiledata['url'] = $shared['profile'];
143 if (!empty($shared['avatar'])) {
144 $profiledata['photo'] = $shared['avatar'];
147 $profiledata['nickname'] = $profiledata['name'];
148 $profiledata['network'] = Protocol::matchByProfileUrl($profiledata['url']);
150 $profiledata['address'] = '';
151 $profiledata['about'] = '';
153 $profiledata = Contact::getByURLForUser($profiledata['url'], local_user()) ?: $profiledata;
156 if (!empty($profiledata['photo'])) {
157 $profiledata['photo'] = DI::baseUrl()->remove($profiledata['photo']);
163 function display_content(App $a, $update = false, $update_uid = 0)
165 if (DI::config()->get('system','block_public') && !Session::isAuthenticated()) {
166 throw new HTTPException\ForbiddenException(DI::l10n()->t('Public access denied.'));
173 $force = (bool)($_REQUEST['force'] ?? false);
176 $uri_id = $_REQUEST['uri_id'];
177 $item = Post::selectFirst(['uid', 'parent-uri-id'], ['uri-id' => $uri_id, 'uid' => $update_uid]);
179 if ($item['uid'] != 0) {
180 $a->setProfileOwner($item['uid']);
182 $a->setProfileOwner($update_uid);
184 $parent_uri_id = $item['parent-uri-id'];
187 $uri_id = (($a->argc > 2) ? $a->argv[2] : 0);
188 $parent_uri_id = $uri_id;
191 $fields = ['uri-id', 'parent-uri-id', 'uid'];
194 $condition = ['guid' => $a->argv[1], 'uid' => local_user()];
195 $item = Post::selectFirstForUser(local_user(), $fields, $condition);
196 if (DBA::isResult($item)) {
197 $uri_id = $item['uri-id'];
198 $parent_uri_id = $item['parent-uri-id'];
202 if (($parent_uri_id == 0) && remote_user()) {
203 $item = Post::selectFirst($fields, ['guid' => $a->argv[1], 'private' => Item::PRIVATE, 'origin' => true]);
204 if (DBA::isResult($item) && Contact::isFollower(remote_user(), $item['uid'])) {
205 $uri_id = $item['uri-id'];
206 $parent_uri_id = $item['parent-uri-id'];
210 if ($parent_uri_id == 0) {
211 $condition = ['private' => [Item::PUBLIC, Item::UNLISTED], 'guid' => $a->argv[1], 'uid' => 0];
212 $item = Post::selectFirstForUser(local_user(), $fields, $condition);
213 if (DBA::isResult($item)) {
214 $uri_id = $item['uri-id'];
215 $parent_uri_id = $item['parent-uri-id'];
222 throw new HTTPException\NotFoundException(DI::l10n()->t('The requested item doesn\'t exist or has been deleted.'));
225 if (!DI::pConfig()->get(local_user(), 'system', 'detailed_notif')) {
226 DBA::update('notification', ['seen' => true], ['parent-uri-id' => $item['parent-uri-id'], 'uid' => local_user()]);
227 DBA::update('notify', ['seen' => true], ['parent-uri-id' => $item['parent-uri-id'], 'uid' => local_user()]);
230 // We are displaying an "alternate" link if that post was public. See issue 2864
231 $is_public = Post::exists(['uri-id' => $uri_id, 'private' => [Item::PUBLIC, Item::UNLISTED]]);
233 // For the atom feed the nickname doesn't matter at all, we only need the item id.
234 $alternate = DI::baseUrl().'/display/feed-item/'.$uri_id.'.atom';
235 $conversation = DI::baseUrl().'/display/feed-item/' . $parent_uri_id . '/conversation.atom';
241 DI::page()['htmlhead'] .= Renderer::replaceMacros(Renderer::getMarkupTemplate('display-head.tpl'),
242 ['$alternate' => $alternate,
243 '$conversation' => $conversation]);
245 $is_remote_contact = false;
246 $item_uid = local_user();
250 if (!empty($parent_uri_id)) {
251 $parent = Post::selectFirst(['uid'], ['uri-id' => $parent_uri_id, 'wall' => true]);
254 if (DBA::isResult($parent)) {
255 $page_uid = $page_uid ?? 0 ?: $parent['uid'];
256 $is_remote_contact = Session::getRemoteContactID($page_uid);
257 if ($is_remote_contact) {
258 $item_uid = $parent['uid'];
261 $page_uid = $item['uid'];
264 if (!empty($page_uid) && ($page_uid != local_user())) {
265 $page_user = User::getById($page_uid);
268 $is_owner = local_user() && (in_array($page_uid, [local_user(), 0]));
270 if (!empty($page_user['hidewall']) && !$is_owner && !$is_remote_contact) {
271 throw new HTTPException\ForbiddenException(DI::l10n()->t('Access to this profile has been restricted.'));
274 // We need the editor here to be able to reshare an item.
275 if ($is_owner && !$update) {
278 'allow_location' => $a->user['allow_location'],
279 'default_location' => $a->user['default-location'],
280 'nickname' => $a->user['nickname'],
281 'lockstate' => (is_array($a->user) && (strlen($a->user['allow_cid']) || strlen($a->user['allow_gid']) || strlen($a->user['deny_cid']) || strlen($a->user['deny_gid'])) ? 'lock' : 'unlock'),
282 'acl' => ACL::getFullSelectorHTML(DI::page(), $a->user, true),
284 'visitor' => 'block',
285 'profile_uid' => local_user(),
287 $o .= status_editor($a, $x, 0, true);
289 $sql_extra = Item::getPermissionsSQLByUserId($page_uid);
291 if (local_user() && (local_user() == $page_uid)) {
292 $condition = ['parent-uri-id' => $parent_uri_id, 'uid' => local_user(), 'unseen' => true];
293 $unseen = Post::exists($condition);
298 if ($update && !$unseen && !$force) {
302 $condition = ["`uri-id` = ? AND `uid` IN (0, ?) " . $sql_extra, $uri_id, $item_uid];
303 $fields = ['parent-uri-id', 'body', 'title', 'author-name', 'author-avatar', 'plink', 'author-id', 'owner-id', 'contact-id'];
304 $item = Post::selectFirstForUser($page_uid, $fields, $condition);
306 if (!DBA::isResult($item)) {
307 throw new HTTPException\NotFoundException(DI::l10n()->t('The requested item doesn\'t exist or has been deleted.'));
310 $item['uri-id'] = $item['parent-uri-id'];
313 $condition = ['parent-uri-id' => $parent_uri_id, 'uid' => local_user(), 'unseen' => true];
314 Item::update(['unseen' => false], $condition);
317 if (!$update && local_user()) {
318 $o .= "<script> var netargs = '?uri_id=" . $item['uri-id'] . "'; </script>";
321 $o .= conversation($a, [$item], 'display', $update_uid, false, 'commented', $item_uid);
323 // Preparing the meta header
324 $description = trim(BBCode::toPlaintext($item['body']));
325 $title = trim(BBCode::toPlaintext($item['title']));
326 $author_name = $item['author-name'];
328 $image = DI::baseUrl()->remove($item['author-avatar']);
331 $title = $author_name;
334 // Limit the description to 160 characters
335 if (strlen($description) > 160) {
336 $description = substr($description, 0, 157) . '...';
339 $description = htmlspecialchars($description, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
340 $title = htmlspecialchars($title, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
341 $author_name = htmlspecialchars($author_name, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
345 if (DBA::exists('contact', ['unsearchable' => true, 'id' => [$item['contact-id'], $item['author-id'], $item['owner-id']]])) {
346 $page['htmlhead'] .= '<meta content="noindex, noarchive" name="robots" />' . "\n";
349 DI::page()['htmlhead'] .= '<meta name="author" content="'.$author_name.'" />'."\n";
350 $page['htmlhead'] .= '<meta name="title" content="'.$title.'" />'."\n";
351 $page['htmlhead'] .= '<meta name="fulltitle" content="'.$title.'" />'."\n";
352 $page['htmlhead'] .= '<meta name="description" content="'.$description.'" />'."\n";
354 // Schema.org microdata
355 $page['htmlhead'] .= '<meta itemprop="name" content="'.$title.'" />'."\n";
356 $page['htmlhead'] .= '<meta itemprop="description" content="'.$description.'" />'."\n";
357 $page['htmlhead'] .= '<meta itemprop="image" content="'.$image.'" />'."\n";
358 $page['htmlhead'] .= '<meta itemprop="author" content="'.$author_name.'" />'."\n";
361 $page['htmlhead'] .= '<meta name="twitter:card" content="summary" />'."\n";
362 $page['htmlhead'] .= '<meta name="twitter:title" content="'.$title.'" />'."\n";
363 $page['htmlhead'] .= '<meta name="twitter:description" content="'.$description.'" />'."\n";
364 $page['htmlhead'] .= '<meta name="twitter:image" content="'.DI::baseUrl().'/'.$image.'" />'."\n";
365 $page['htmlhead'] .= '<meta name="twitter:url" content="'.$item["plink"].'" />'."\n";
368 $page['htmlhead'] .= '<meta name="DC.title" content="'.$title.'" />'."\n";
369 $page['htmlhead'] .= '<meta name="DC.description" content="'.$description.'" />'."\n";
372 $page['htmlhead'] .= '<meta property="og:type" content="website" />'."\n";
373 $page['htmlhead'] .= '<meta property="og:title" content="'.$title.'" />'."\n";
374 $page['htmlhead'] .= '<meta property="og:image" content="'.DI::baseUrl().'/'.$image.'" />'."\n";
375 $page['htmlhead'] .= '<meta property="og:url" content="'.$item["plink"].'" />'."\n";
376 $page['htmlhead'] .= '<meta property="og:description" content="'.$description.'" />'."\n";
377 $page['htmlhead'] .= '<meta name="og:article:author" content="'.$author_name.'" />'."\n";
383 function displayShowFeed(int $uri_id, int $uid, bool $conversation)
385 $xml = DFRN::itemFeed($uri_id, $uid, $conversation);
387 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('The feed for this item is unavailable.'));
389 header("Content-type: application/atom+xml");