<?php /** * @file mod/display.php */ use Friendica\App; use Friendica\Content\Pager; use Friendica\Content\Text\BBCode; use Friendica\Content\Text\HTML; use Friendica\Core\ACL; use Friendica\Core\Config; use Friendica\Core\L10n; use Friendica\Core\Logger; use Friendica\Core\Protocol; use Friendica\Core\Renderer; use Friendica\Core\System; use Friendica\Database\DBA; use Friendica\Model\Contact; use Friendica\Model\Group; use Friendica\Model\Item; use Friendica\Model\Profile; use Friendica\Module\Objects; use Friendica\Network\HTTPException; use Friendica\Protocol\ActivityPub; use Friendica\Protocol\DFRN; use Friendica\Util\Strings; function display_init(App $a) { if (ActivityPub::isRequest()) { Objects::rawContent(); } if (Config::get('system', 'block_public') && !local_user() && !remote_user()) { return; } $nick = (($a->argc > 1) ? $a->argv[1] : ''); $item = null; $item_user = local_user(); $fields = ['id', 'parent', 'author-id', 'body', 'uid', 'guid']; // If there is only one parameter, then check if this parameter could be a guid if ($a->argc == 2) { $nick = ""; // Does the local user have this item? if (local_user()) { $item = Item::selectFirstForUser(local_user(), $fields, ['guid' => $a->argv[1], 'uid' => local_user()]); if (DBA::isResult($item)) { $nick = $a->user["nickname"]; } // Is this item private but could be visible to the remove visitor? } elseif (remote_user()) { $item = Item::selectFirst($fields, ['guid' => $a->argv[1], 'private' => 1]); if (DBA::isResult($item)) { if (!Contact::isFollower(remote_user(), $item['uid'])) { $item = null; } else { $item_user = $item['uid']; } } } // Is it an item with uid=0? if (!DBA::isResult($item)) { $item = Item::selectFirstForUser(local_user(), $fields, ['guid' => $a->argv[1], 'private' => [0, 2], 'uid' => 0]); } } elseif ($a->argc >= 3 && $nick == 'feed-item') { $item_id = $a->argv[2]; if (substr($item_id, -5) == '.atom') { $item_id = substr($item_id, 0, -5); } $item = Item::selectFirstForUser(local_user(), $fields, ['id' => $item_id, 'private' => [0, 2], 'uid' => 0]); } if (!DBA::isResult($item)) { return; } if ($a->argc >= 3 && $nick == 'feed-item') { displayShowFeed($item['id'], $a->argc > 3 && $a->argv[3] == 'conversation.atom'); } if (!empty($_SERVER['HTTP_ACCEPT']) && strstr($_SERVER['HTTP_ACCEPT'], 'application/atom+xml')) { Logger::log('Directly serving XML for id '.$item["id"], Logger::DEBUG); displayShowFeed($item["id"], false); } if ($item["id"] != $item["parent"]) { $item = Item::selectFirstForUser($item_user, $fields, ['id' => $item["parent"]]); } $profiledata = display_fetchauthor($a, $item); if (strstr(Strings::normaliseLink($profiledata["url"]), Strings::normaliseLink(System::baseUrl()))) { $nickname = str_replace(Strings::normaliseLink(System::baseUrl())."/profile/", "", Strings::normaliseLink($profiledata["url"])); if (($nickname != $a->user["nickname"])) { $profile = DBA::fetchFirst("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile` INNER JOIN `contact` on `contact`.`uid` = `profile`.`uid` INNER JOIN `user` ON `profile`.`uid` = `user`.`uid` WHERE `user`.`nickname` = ? AND `profile`.`is-default` AND `contact`.`self` LIMIT 1", $nickname ); if (DBA::isResult($profile)) { $profiledata = $profile; } $profiledata["network"] = Protocol::DFRN; } else { $profiledata = []; } } Profile::load($a, $nick, 0, $profiledata); } function display_fetchauthor($a, $item) { $author = DBA::selectFirst('contact', ['name', 'nick', 'photo', 'network', 'url'], ['id' => $item['author-id']]); $profiledata = []; $profiledata['uid'] = -1; $profiledata['nickname'] = $author['nick']; $profiledata['name'] = $author['name']; $profiledata['picdate'] = ''; $profiledata['photo'] = $author['photo']; $profiledata['url'] = $author['url']; $profiledata['network'] = $author['network']; // Check for a repeated message $skip = false; $body = trim($item["body"]); // Skip if it isn't a pure repeated messages // Does it start with a share? if (!$skip && strpos($body, "[share") > 0) { $skip = true; } // Does it end with a share? if (!$skip && (strlen($body) > (strrpos($body, "[/share]") + 8))) { $skip = true; } if (!$skip) { $attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","$1",$body); // Skip if there is no shared message in there if ($body == $attributes) { $skip = true; } } if (!$skip) { preg_match("/author='(.*?)'/ism", $attributes, $matches); if (!empty($matches[1])) { $profiledata["name"] = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8'); } preg_match('/author="(.*?)"/ism', $attributes, $matches); if (!empty($matches[1])) { $profiledata["name"] = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8'); } preg_match("/profile='(.*?)'/ism", $attributes, $matches); if (!empty($matches[1])) { $profiledata["url"] = $matches[1]; } preg_match('/profile="(.*?)"/ism', $attributes, $matches); if (!empty($matches[1])) { $profiledata["url"] = $matches[1]; } preg_match("/avatar='(.*?)'/ism", $attributes, $matches); if (!empty($matches[1])) { $profiledata["photo"] = $matches[1]; } preg_match('/avatar="(.*?)"/ism', $attributes, $matches); if (!empty($matches[1])) { $profiledata["photo"] = $matches[1]; } $profiledata["nickname"] = $profiledata["name"]; $profiledata["network"] = Protocol::matchByProfileUrl($profiledata["url"]); $profiledata["address"] = ""; $profiledata["about"] = ""; } $profiledata = Contact::getDetailsByURL($profiledata["url"], local_user(), $profiledata); $profiledata["photo"] = System::removedBaseUrl($profiledata["photo"]); return $profiledata; } function display_content(App $a, $update = false, $update_uid = 0) { if (Config::get('system','block_public') && !local_user() && !remote_user()) { throw new HTTPException\ForbiddenException(L10n::t('Public access denied.')); } $o = ''; if ($update) { $item_id = $_REQUEST['item_id']; $item = Item::selectFirst(['uid', 'parent', 'parent-uri'], ['id' => $item_id]); if ($item['uid'] != 0) { $a->profile = ['uid' => intval($item['uid']), 'profile_uid' => intval($item['uid'])]; } else { $a->profile = ['uid' => intval($update_uid), 'profile_uid' => intval($update_uid)]; } $item_parent = $item['parent']; $item_parent_uri = $item['parent-uri']; } else { $item_id = (($a->argc > 2) ? $a->argv[2] : 0); $item_parent = $item_id; if ($a->argc == 2) { $item_parent = 0; $fields = ['id', 'parent', 'parent-uri', 'uid']; if (local_user()) { $condition = ['guid' => $a->argv[1], 'uid' => local_user()]; $item = Item::selectFirstForUser(local_user(), $fields, $condition); if (DBA::isResult($item)) { $item_id = $item["id"]; $item_parent = $item["parent"]; $item_parent_uri = $item['parent-uri']; } } elseif (remote_user()) { $item = Item::selectFirst($fields, ['guid' => $a->argv[1], 'private' => 1]); if (DBA::isResult($item) && Contact::isFollower(remote_user(), $item['uid'])) { $item_id = $item["id"]; $item_parent = $item["parent"]; $item_parent_uri = $item['parent-uri']; } } if ($item_parent == 0) { $condition = ['private' => [0, 2], 'guid' => $a->argv[1], 'uid' => 0]; $item = Item::selectFirstForUser(local_user(), $fields, $condition); if (DBA::isResult($item)) { $item_id = $item["id"]; $item_parent = $item["parent"]; $item_parent_uri = $item['parent-uri']; } } } } if (!$item_id) { throw new HTTPException\NotFoundException(L10n::t('The requested item doesn\'t exist or has been deleted.')); } // We are displaying an "alternate" link if that post was public. See issue 2864 $is_public = Item::exists(['id' => $item_id, 'private' => [0, 2]]); if ($is_public) { // For the atom feed the nickname doesn't matter at all, we only need the item id. $alternate = System::baseUrl().'/display/feed-item/'.$item_id.'.atom'; $conversation = System::baseUrl().'/display/feed-item/'.$item_parent.'/conversation.atom'; } else { $alternate = ''; $conversation = ''; } $a->page['htmlhead'] .= Renderer::replaceMacros(Renderer::getMarkupTemplate('display-head.tpl'), ['$alternate' => $alternate, '$conversation' => $conversation]); $groups = []; $remote_cid = null; $is_remote_contact = false; $item_uid = local_user(); if (isset($item_parent_uri)) { $parent = Item::selectFirst(['uid'], ['uri' => $item_parent_uri, 'wall' => true]); if (DBA::isResult($parent)) { $a->profile['uid'] = defaults($a->profile, 'uid', $parent['uid']); $a->profile['profile_uid'] = defaults($a->profile, 'profile_uid', $parent['uid']); $is_remote_contact = Contact::isFollower(remote_user(), $a->profile['profile_uid']); if ($is_remote_contact) { $cdata = Contact::getPublicAndUserContacID(remote_user(), $a->profile['profile_uid']); if (!empty($cdata['user'])) { $groups = Group::getIdsByContactId($cdata['user']); $remote_cid = $cdata['user']; $item_uid = $parent['uid']; } } } } $page_contact = DBA::selectFirst('contact', [], ['self' => true, 'uid' => $a->profile['uid']]); if (DBA::isResult($page_contact)) { $a->page_contact = $page_contact; } $is_owner = (local_user() && (in_array($a->profile['profile_uid'], [local_user(), 0])) ? true : false); if (!empty($a->profile['hidewall']) && !$is_owner && !$is_remote_contact) { throw new HTTPException\ForbiddenException(L10n::t('Access to this profile has been restricted.')); } // We need the editor here to be able to reshare an item. if ($is_owner) { $x = [ 'is_owner' => true, 'allow_location' => $a->user['allow_location'], 'default_location' => $a->user['default-location'], 'nickname' => $a->user['nickname'], 'lockstate' => (is_array($a->user) && (strlen($a->user['allow_cid']) || strlen($a->user['allow_gid']) || strlen($a->user['deny_cid']) || strlen($a->user['deny_gid'])) ? 'lock' : 'unlock'), 'acl' => ACL::getFullSelectorHTML($a->user, true), 'bang' => '', 'visitor' => 'block', 'profile_uid' => local_user(), ]; $o .= status_editor($a, $x, 0, true); } $sql_extra = Item::getPermissionsSQLByUserId($a->profile['profile_uid'], $is_remote_contact, $groups, $remote_cid); if (local_user() && (local_user() == $a->profile['profile_uid'])) { $condition = ['parent-uri' => $item_parent_uri, 'uid' => local_user(), 'unseen' => true]; $unseen = Item::exists($condition); } else { $unseen = false; } if ($update && !$unseen) { return ''; } $condition = ["`id` = ? AND `item`.`uid` IN (0, ?) " . $sql_extra, $item_id, $item_uid]; $fields = ['parent-uri', 'body', 'title', 'author-name', 'author-avatar', 'plink']; $item = Item::selectFirstForUser(local_user(), $fields, $condition); if (!DBA::isResult($item)) { throw new HTTPException\NotFoundException(L10n::t('The requested item doesn\'t exist or has been deleted.')); } $item['uri'] = $item['parent-uri']; if ($unseen) { $condition = ['parent-uri' => $item_parent_uri, 'uid' => local_user(), 'unseen' => true]; Item::update(['unseen' => false], $condition); } if (!$update) { $o .= "<script> var netargs = '?f=&item_id=" . $item_id . "'; </script>"; } $o .= conversation($a, [$item], new Pager($a->query_string), 'display', $update_uid, false, 'commented', $item_uid); // Preparing the meta header $description = trim(HTML::toPlaintext(BBCode::convert($item["body"], false), 0, true)); $title = trim(HTML::toPlaintext(BBCode::convert($item["title"], false), 0, true)); $author_name = $item["author-name"]; $image = $a->removeBaseURL($item["author-avatar"]); if ($title == "") { $title = $author_name; } // Limit the description to 160 characters if (strlen($description) > 160) { $description = substr($description, 0, 157) . '...'; } $description = htmlspecialchars($description, ENT_COMPAT, 'UTF-8', true); // allow double encoding here $title = htmlspecialchars($title, ENT_COMPAT, 'UTF-8', true); // allow double encoding here $author_name = htmlspecialchars($author_name, ENT_COMPAT, 'UTF-8', true); // allow double encoding here //<meta name="keywords" content=""> $a->page['htmlhead'] .= '<meta name="author" content="'.$author_name.'" />'."\n"; $a->page['htmlhead'] .= '<meta name="title" content="'.$title.'" />'."\n"; $a->page['htmlhead'] .= '<meta name="fulltitle" content="'.$title.'" />'."\n"; $a->page['htmlhead'] .= '<meta name="description" content="'.$description.'" />'."\n"; // Schema.org microdata $a->page['htmlhead'] .= '<meta itemprop="name" content="'.$title.'" />'."\n"; $a->page['htmlhead'] .= '<meta itemprop="description" content="'.$description.'" />'."\n"; $a->page['htmlhead'] .= '<meta itemprop="image" content="'.$image.'" />'."\n"; $a->page['htmlhead'] .= '<meta itemprop="author" content="'.$author_name.'" />'."\n"; // Twitter cards $a->page['htmlhead'] .= '<meta name="twitter:card" content="summary" />'."\n"; $a->page['htmlhead'] .= '<meta name="twitter:title" content="'.$title.'" />'."\n"; $a->page['htmlhead'] .= '<meta name="twitter:description" content="'.$description.'" />'."\n"; $a->page['htmlhead'] .= '<meta name="twitter:image" content="'.System::baseUrl().'/'.$image.'" />'."\n"; $a->page['htmlhead'] .= '<meta name="twitter:url" content="'.$item["plink"].'" />'."\n"; // Dublin Core $a->page['htmlhead'] .= '<meta name="DC.title" content="'.$title.'" />'."\n"; $a->page['htmlhead'] .= '<meta name="DC.description" content="'.$description.'" />'."\n"; // Open Graph $a->page['htmlhead'] .= '<meta property="og:type" content="website" />'."\n"; $a->page['htmlhead'] .= '<meta property="og:title" content="'.$title.'" />'."\n"; $a->page['htmlhead'] .= '<meta property="og:image" content="'.System::baseUrl().'/'.$image.'" />'."\n"; $a->page['htmlhead'] .= '<meta property="og:url" content="'.$item["plink"].'" />'."\n"; $a->page['htmlhead'] .= '<meta property="og:description" content="'.$description.'" />'."\n"; $a->page['htmlhead'] .= '<meta name="og:article:author" content="'.$author_name.'" />'."\n"; // article:tag return $o; } function displayShowFeed($item_id, $conversation) { $xml = DFRN::itemFeed($item_id, $conversation); if ($xml == '') { throw new HTTPException\InternalServerErrorException(L10n::t('The feed for this item is unavailable.')); } header("Content-type: application/atom+xml"); echo $xml; exit(); }