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
use Friendica\App;
require_once('include/dfrn.php');
function display_init(App $a) {
if ((get_config('system','block_public')) && (! local_user()) && (! remote_user())) {
return;
}
$nick = (($a->argc > 1) ? $a->argv[1] : '');
$profiledata = array();
if ($a->argc == 3) {
if (substr($a->argv[2], -5) == '.atom') {
$item_id = substr($a->argv[2], 0, -5);
$xml = dfrn::itemFeed($item_id);
if ($xml == '') {
http_status_exit(500);
}
header("Content-type: application/atom+xml");
echo $xml;
killme();
}
}
// If there is only one parameter, then check if this parameter could be a guid
if ($a->argc == 2) {
$nick = "";
$itemuid = 0;
// Does the local user have this item?
if (local_user()) {
$r = dba::fetch_first("SELECT `id`, `parent`, `author-name`, `author-link`, `author-avatar`, `network`, `body`, `uid`, `owner-link` FROM `item`
WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
AND `guid` = ? AND `uid` = ? LIMIT 1", $a->argv[1], local_user());
if (dbm::is_result($r)) {
$nick = $a->user["nickname"];
$itemuid = local_user();
}
}
// Or is it anywhere on the server?
if ($nick == "") {
$r = dba::fetch_first("SELECT `user`.`nickname`, `item`.`id`, `item`.`parent`, `item`.`author-name`,
`item`.`author-link`, `item`.`author-avatar`, `item`.`network`, `item`.`uid`, `item`.`owner-link`, `item`.`body`
FROM `item` STRAIGHT_JOIN `user` ON `user`.`uid` = `item`.`uid`
WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
AND `item`.`allow_cid` = '' AND `item`.`allow_gid` = ''
AND `item`.`deny_cid` = '' AND `item`.`deny_gid` = ''
AND NOT `item`.`private` AND NOT `user`.`hidewall`
AND `item`.`guid` = ? LIMIT 1", $a->argv[1]);
if (dbm::is_result($r)) {
$nick = $r["nickname"];
$itemuid = $r["uid"];
}
}
// Is it an item with uid=0?
if ($nick == "") {
$r = dba::fetch_first("SELECT `item`.`id`, `item`.`parent`, `item`.`author-name`, `item`.`author-link`,
`item`.`author-avatar`, `item`.`network`, `item`.`uid`, `item`.`owner-link`, `item`.`body`
FROM `item` WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
AND `item`.`allow_cid` = '' AND `item`.`allow_gid` = ''
AND `item`.`deny_cid` = '' AND `item`.`deny_gid` = ''
AND NOT `item`.`private` AND `item`.`uid` = 0
AND `item`.`guid` = ? LIMIT 1", $a->argv[1]);
}
if (dbm::is_result($r)) {
if ($r["id"] != $r["parent"]) {
$r = dba::fetch_first("SELECT `id`, `author-name`, `author-link`, `author-avatar`, `network`, `body`, `uid`, `owner-link` FROM `item`
WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
AND `id` = ?", $r["parent"]);
}
if (($itemuid != local_user()) && local_user()) {
// Do we know this contact but we haven't got this item?
// Copy the wohle thread to our local storage so that we can interact.
// We really should change this need for the future since it scales very bad.
$contactid = get_contact($r['owner-link'], local_user());
if ($contactid) {
$items = dba::p("SELECT * FROM `item` WHERE `parent` = ? ORDER BY `id`", $r["id"]);
while ($item = self::fetch($items)) {
$itemcontactid = get_contact($item['owner-link'], local_user());
if (!$itemcontactid) {
$itemcontactid = $contactid;
}
unset($item['id']);
$item['uid'] = local_user();
$item['origin'] = 0;
$item['contact-id'] = $itemcontactid;
$local_copy = item_store($item, false, false, true);
logger("Stored local copy for post ".$item['guid']." under id ".$local_copy, LOGGER_DEBUG);
}
dba::close($items);
}
}
$profiledata = display_fetchauthor($a, $r);
if (strstr(normalise_link($profiledata["url"]), normalise_link(App::get_baseurl()))) {
$nickname = str_replace(normalise_link(App::get_baseurl())."/profile/", "", normalise_link($profiledata["url"]));
if (($nickname != $a->user["nickname"])) {
$r = dba::fetch_first("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",
$nickname
);
if (dbm::is_result($r)) {
$profiledata = $r;
}
$profiledata["network"] = NETWORK_DFRN;
} else {
$profiledata = array();
}
}
} else {
$a->error = 404;
notice(t('Item not found.') . EOL);
return;
}
}
profile_load($a, $nick, 0, $profiledata);
}
function display_fetchauthor($a, $item) {
require_once("include/Contact.php");
$profiledata = array();
$profiledata["uid"] = -1;
$profiledata["nickname"] = $item["author-name"];
$profiledata["name"] = $item["author-name"];
$profiledata["picdate"] = "";
$profiledata["photo"] = $item["author-avatar"];
$profiledata["url"] = $item["author-link"];
$profiledata["network"] = $item["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) {
$author = "";
preg_match("/author='(.*?)'/ism", $attributes, $matches);
if ($matches[1] != "") {
$profiledata["name"] = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
}
preg_match('/author="(.*?)"/ism', $attributes, $matches);
if ($matches[1] != "") {
$profiledata["name"] = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
}
$profile = "";
preg_match("/profile='(.*?)'/ism", $attributes, $matches);
if ($matches[1] != "") {
$profiledata["url"] = $matches[1];
}
preg_match('/profile="(.*?)"/ism', $attributes, $matches);
if ($matches[1] != "") {
$profiledata["url"] = $matches[1];
}
$avatar = "";
preg_match("/avatar='(.*?)'/ism", $attributes, $matches);
if ($matches[1] != "") {
$profiledata["photo"] = $matches[1];
}
preg_match('/avatar="(.*?)"/ism', $attributes, $matches);
if ($matches[1] != "") {
$profiledata["photo"] = $matches[1];
}
$profiledata["nickname"] = $profiledata["name"];
$profiledata["network"] = GetProfileUsername($profiledata["url"], "", false, true);
$profiledata["address"] = "";
$profiledata["about"] = "";
}
$profiledata = get_contact_details_by_url($profiledata["url"], local_user(), $profiledata);
$profiledata["photo"] = App::remove_baseurl($profiledata["photo"]);
if (local_user()) {
if (in_array($profiledata["network"], array(NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS))) {
$profiledata["remoteconnect"] = App::get_baseurl()."/follow?url=".urlencode($profiledata["url"]);
}
} elseif ($profiledata["network"] == NETWORK_DFRN) {
$connect = str_replace("/profile/", "/dfrn_request/", $profiledata["url"]);
$profiledata["remoteconnect"] = $connect;
}
return($profiledata);
}
function display_content(App $a, $update = 0) {
if ((get_config('system','block_public')) && (! local_user()) && (! remote_user())) {
notice(t('Public access denied.') . EOL);
return;
}
require_once('include/security.php');
require_once('include/conversation.php');
require_once('include/acl_selectors.php');
$o = '';
if ($update) {
$nick = $_REQUEST['nick'];
} else {
$nick = (($a->argc > 1) ? $a->argv[1] : '');
}
if ($update) {
$item_id = $_REQUEST['item_id'];
$a->profile = array('uid' => intval($update), 'profile_uid' => intval($update));
} else {
$item_id = (($a->argc > 2) ? $a->argv[2] : 0);
if ($a->argc == 2) {
$nick = "";
if (local_user()) {
$r = dba::fetch_first("SELECT `id` FROM `item`
WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
AND `guid` = ? AND `uid` = ?", $a->argv[1], local_user());
if (dbm::is_result($r)) {
$item_id = $r["id"];
$nick = $a->user["nickname"];
}
}
if ($nick == "") {
$r = dba::fetch_first("SELECT `user`.`nickname`, `item`.`id` FROM `item` STRAIGHT_JOIN `user` ON `user`.`uid` = `item`.`uid`
WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
AND `item`.`allow_cid` = '' AND `item`.`allow_gid` = ''
AND `item`.`deny_cid` = '' AND `item`.`deny_gid` = ''
AND NOT `item`.`private` AND NOT `user`.`hidewall`
AND `item`.`guid` = ?", $a->argv[1]);
if (dbm::is_result($r)) {
$item_id = $r["id"];
$nick = $r["nickname"];
}
}
if ($nick == "") {
$r = dba::fetch_first("SELECT `item`.`id` FROM `item`
WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
AND `item`.`allow_cid` = '' AND `item`.`allow_gid` = ''
AND `item`.`deny_cid` = '' AND `item`.`deny_gid` = ''
AND NOT `item`.`private` AND `item`.`uid` = 0
AND `item`.`guid` = ?", $a->argv[1]);
if (dbm::is_result($r)) {
$item_id = $r["id"];
}
}
}
}
if ($item_id && !is_numeric($item_id)) {
$r = dba::select('item', array('id'), array('uri' => $item_id, 'uid' => $a->profile['uid']), array('limit' => 1));
if (dbm::is_result($r)) {
$item_id = $r["id"];
} else {
$item_id = false;
}
}
if (!$item_id) {
$a->error = 404;
notice(t('Item not found.').EOL);
return;
}
// We are displaying an "alternate" link if that post was public. See issue 2864
$is_public = dba::exists('item', array('id' => $item_id, 'private' => false, 'wall' => true));
if ($is_public) {
$alternate = App::get_baseurl().'/display/'.$nick.'/'.$item_id.'.atom';
} else {
$alternate = '';
}
$a->page['htmlhead'] .= replace_macros(get_markup_template('display-head.tpl'),
array('$alternate' => $alternate));
$groups = array();
$contact = null;
$remote_contact = false;
$contact_id = 0;
if (is_array($_SESSION['remote'])) {
foreach ($_SESSION['remote'] as $v) {
if ($v['uid'] == $a->profile['uid']) {
$contact_id = $v['cid'];
break;
}
}
}
if ($contact_id) {
$groups = init_groups_visitor($contact_id);
$r = dba::fetch_first("SELECT * FROM `contact` WHERE `id` = ? AND `uid` = ? LIMIT 1",
$contact_id,
$a->profile['uid']
);
if (dbm::is_result($r)) {
$contact = $r;
$remote_contact = true;
}
}
if (!$remote_contact) {
if (local_user()) {
$contact_id = $_SESSION['cid'];
$contact = $a->contact;
}
}
$r = dba::fetch_first("SELECT * FROM `contact` WHERE `uid` = ? AND `self` LIMIT 1", $a->profile['uid']);
if (dbm::is_result($r)) {
$a->page_contact = $r;
}
$is_owner = ((local_user()) && (local_user() == $a->profile['profile_uid']) ? true : false);
if ($a->profile['hidewall'] && (! $is_owner) && (! $remote_contact)) {
notice(t('Access to this profile has been restricted.') . EOL);
return;
}
// We need the editor here to be able to reshare an item.
if ($is_owner) {
$x = array(
'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' => populate_acl($a->user, true),
'bang' => '',
'visitor' => 'block',
'profile_uid' => local_user(),
'acl_data' => construct_acl_data($a, $a->user), // For non-Javascript ACL selector
);
$o .= status_editor($a,$x,0,true);
}
$sql_extra = item_permissions_sql($a->profile['uid'],$remote_contact,$groups);
if ($update) {
$r = dba::p("SELECT `id` FROM `item` WHERE `item`.`uid` = ?
AND `item`.`parent` = (SELECT `parent` FROM `item` WHERE `id` = ?)
$sql_extra AND `unseen`",
$a->profile['uid'],
$item_id
);
if (dba::num_rows($r) == 0) {
return '';
}
}
$r = dba::p(item_query()." AND `item`.`uid` = ?
AND `item`.`parent` = (SELECT `parent` FROM `item` WHERE `id` = ?)
$sql_extra
ORDER BY `parent` DESC, `gravity` ASC, `id` ASC",
$a->profile['uid'],
$item_id
);
if (!dbm::is_result($r) && local_user()) {
// Check if this is another person's link to a post that we have
$r = dba::fetch_first("SELECT `item`.uri FROM `item`
WHERE (`item`.`id` = ? OR `item`.`uri` = ?)
LIMIT 1",
$item_id,
$item_id
);
if (dbm::is_result($r)) {
$item_uri = $r['uri'];
$r = dba::p(item_query()." AND `item`.`uid` = ?
AND `item`.`parent` = (SELECT `parent` FROM `item` WHERE `uri` = ? AND uid = ?)
ORDER BY `parent` DESC, `gravity` ASC, `id` ASC",
local_user(),
$item_uri,
local_user()
);
}
}
if (dbm::is_result($r)) {
$s = dba::inArray($r);
if ((local_user()) && (local_user() == $a->profile['uid'])) {
$unseen = dba::select('item', array('id'), array('parent' => $s[0]['parent'], 'unseen' => true), array('limit' => 1));
if (dbm::is_result($unseen)) {
dba::update('item', array('unseen' => false), array('parent' => $s[0]['parent'], 'unseen' => true));
}
}
$items = conv_sort($s, "`commented`");
if (!$update) {
$o .= "<script> var netargs = '?f=&nick=" . $nick . "&item_id=" . $item_id . "'; </script>";
}
$o .= conversation($a, $items, 'display', $update);
// Preparing the meta header
require_once('include/bbcode.php');
require_once("include/html2plain.php");
$description = trim(html2plain(bbcode($s[0]["body"], false, false), 0, true));
$title = trim(html2plain(bbcode($s[0]["title"], false, false), 0, true));
$author_name = $s[0]["author-name"];
$image = $a->remove_baseurl($s[0]["author-thumb"]);
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";
$a->page['htmlhead'] .= '<meta name="twitter:image" content="'.$image.'" />'."\n";
$a->page['htmlhead'] .= '<meta name="twitter:url" content="'.$s[0]["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";
$a->page['htmlhead'] .= '<meta property="og:image" content="'.$image.'" />'."\n";
$a->page['htmlhead'] .= '<meta property="og:url" content="'.$s[0]["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;
}
$r = dba::fetch_first("SELECT `id`,`deleted` FROM `item` WHERE `id` = ? OR `uri` = ? LIMIT 1",
$item_id,
$item_id
);
if ($r) {
if ($r['deleted']) {
notice(t('Item has been removed.') . EOL);
} else {
notice(t('Permission denied.') . EOL);
}
} else {
notice(t('Item not found.') . EOL);
}
return $o;
}