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
/**
* @file include/items.php
*/
use Friendica\BaseObject;
use Friendica\Content\Feature;
use Friendica\Core\Addon;
use Friendica\Core\Config;
use Friendica\Core\L10n;
use Friendica\Core\Logger;
use Friendica\Core\PConfig;
use Friendica\Core\Protocol;
use Friendica\Core\Renderer;
use Friendica\Core\System;
use Friendica\Database\DBA;
use Friendica\Model\Item;
use Friendica\Protocol\DFRN;
use Friendica\Protocol\Feed;
use Friendica\Protocol\OStatus;
use Friendica\Util\DateTimeFormat;
use Friendica\Util\Network;
use Friendica\Util\ParseUrl;
use Friendica\Util\Strings;
use Friendica\Util\Temporal;
require_once 'mod/share.php';
function add_page_info_data(array $data, $no_photos = false)
{
Addon::callHooks('page_info_data', $data);
if (empty($data['type'])) {
return '';
}
// It maybe is a rich content, but if it does have everything that a link has,
// then treat it that way
if (($data["type"] == "rich") && is_string($data["title"]) &&
is_string($data["text"]) && !empty($data["images"])) {
$data["type"] = "link";
}
$data["title"] = defaults($data, "title", "");
if ((($data["type"] != "link") && ($data["type"] != "video") && ($data["type"] != "photo")) || ($data["title"] == $data["url"])) {
return "";
}
if ($no_photos && ($data["type"] == "photo")) {
return "";
}
// Escape some bad characters
$data["url"] = str_replace(["[", "]"], ["&#91;", "&#93;"], htmlentities($data["url"], ENT_QUOTES, 'UTF-8', false));
$data["title"] = str_replace(["[", "]"], ["&#91;", "&#93;"], htmlentities($data["title"], ENT_QUOTES, 'UTF-8', false));
$text = "[attachment type='".$data["type"]."'";
if (empty($data["text"])) {
$data["text"] = $data["title"];
}
if (empty($data["text"])) {
$data["text"] = $data["url"];
}
if (!empty($data["url"])) {
$text .= " url='".$data["url"]."'";
}
if (!empty($data["title"])) {
$text .= " title='".$data["title"]."'";
}
// Only embedd a picture link when it seems to be a valid picture ("width" is set)
if (!empty($data["images"]) && !empty($data["images"][0]["width"])) {
$preview = str_replace(["[", "]"], ["&#91;", "&#93;"], htmlentities($data["images"][0]["src"], ENT_QUOTES, 'UTF-8', false));
// if the preview picture is larger than 500 pixels then show it in a larger mode
// But only, if the picture isn't higher than large (To prevent huge posts)
if (!Config::get('system', 'always_show_preview') && ($data["images"][0]["width"] >= 500)
&& ($data["images"][0]["width"] >= $data["images"][0]["height"])) {
$text .= " image='".$preview."'";
} else {
$text .= " preview='".$preview."'";
}
}
$text .= "]".$data["text"]."[/attachment]";
$hashtags = "";
if (isset($data["keywords"]) && count($data["keywords"])) {
$hashtags = "\n";
foreach ($data["keywords"] as $keyword) {
/// @TODO make a positive list of allowed characters
$hashtag = str_replace([" ", "+", "/", ".", "#", "'", "", "`", "(", ")", "", ""],
["", "", "", "", "", "", "", "", "", "", "", ""], $keyword);
$hashtags .= "#[url=" . System::baseUrl() . "/search?tag=" . $hashtag . "]" . $hashtag . "[/url] ";
}
}
return "\n".$text.$hashtags;
}
function query_page_info($url, $photo = "", $keywords = false, $keyword_blacklist = "")
{
$data = ParseUrl::getSiteinfoCached($url, true);
if ($photo != "") {
$data["images"][0]["src"] = $photo;
}
Logger::log('fetch page info for ' . $url . ' ' . print_r($data, true), Logger::DEBUG);
if (!$keywords && isset($data["keywords"])) {
unset($data["keywords"]);
}
if (($keyword_blacklist != "") && isset($data["keywords"])) {
$list = explode(", ", $keyword_blacklist);
foreach ($list as $keyword) {
$keyword = trim($keyword);
$index = array_search($keyword, $data["keywords"]);
if ($index !== false) {
unset($data["keywords"][$index]);
}
}
}
return $data;
}
function add_page_keywords($url, $photo = "", $keywords = false, $keyword_blacklist = "")
{
$data = query_page_info($url, $photo, $keywords, $keyword_blacklist);
$tags = "";
if (isset($data["keywords"]) && count($data["keywords"])) {
foreach ($data["keywords"] as $keyword) {
$hashtag = str_replace([" ", "+", "/", ".", "#", "'"],
["", "", "", "", "", ""], $keyword);
if ($tags != "") {
$tags .= ", ";
}
$tags .= "#[url=" . System::baseUrl() . "/search?tag=" . $hashtag . "]" . $hashtag . "[/url]";
}
}
return $tags;
}
function add_page_info($url, $no_photos = false, $photo = "", $keywords = false, $keyword_blacklist = "")
{
$data = query_page_info($url, $photo, $keywords, $keyword_blacklist);
$text = '';
if (is_array($data)) {
$text = add_page_info_data($data, $no_photos);
}
return $text;
}
function add_page_info_to_body($body, $texturl = false, $no_photos = false)
{
Logger::log('add_page_info_to_body: fetch page info for body ' . $body, Logger::DEBUG);
$URLSearchString = "^\[\]";
// Fix for Mastodon where the mentions are in a different format
$body = preg_replace("/\[url\=([$URLSearchString]*)\]([#!@])(.*?)\[\/url\]/ism",
'$2[url=$1]$3[/url]', $body);
// Adding these spaces is a quick hack due to my problems with regular expressions :)
preg_match("/[^!#@]\[url\]([$URLSearchString]*)\[\/url\]/ism", " " . $body, $matches);
if (!$matches) {
preg_match("/[^!#@]\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", " " . $body, $matches);
}
// Convert urls without bbcode elements
if (!$matches && $texturl) {
preg_match("/([^\]\='".'"'."]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", " ".$body, $matches);
// Yeah, a hack. I really hate regular expressions :)
if ($matches) {
$matches[1] = $matches[2];
}
}
if ($matches) {
$footer = add_page_info($matches[1], $no_photos);
}
// Remove the link from the body if the link is attached at the end of the post
if (isset($footer) && (trim($footer) != "") && (strpos($footer, $matches[1]))) {
$removedlink = trim(str_replace($matches[1], "", $body));
if (($removedlink == "") || strstr($body, $removedlink)) {
$body = $removedlink;
}
$url = str_replace(['/', '.'], ['\/', '\.'], $matches[1]);
$removedlink = preg_replace("/\[url\=" . $url . "\](.*?)\[\/url\]/ism", '', $body);
if (($removedlink == "") || strstr($body, $removedlink)) {
$body = $removedlink;
}
}
// Add the page information to the bottom
if (isset($footer) && (trim($footer) != "")) {
$body .= $footer;
}
return $body;
}
/**
*
* consume_feed - process atom feed and update anything/everything we might need to update
*
* $xml = the (atom) feed to consume - RSS isn't as fully supported but may work for simple feeds.
*
* $importer = the contact_record (joined to user_record) of the local user who owns this relationship.
* It is this person's stuff that is going to be updated.
* $contact = the person who is sending us stuff. If not set, we MAY be processing a "follow" activity
* from an external network and MAY create an appropriate contact record. Otherwise, we MUST
* have a contact record.
* $hub = should we find a hub declation in the feed, pass it back to our calling process, who might (or
* might not) try and subscribe to it.
* $datedir sorts in reverse order
* $pass - by default ($pass = 0) we cannot guarantee that a parent item has been
* imported prior to its children being seen in the stream unless we are certain
* of how the feed is arranged/ordered.
* With $pass = 1, we only pull parent items out of the stream.
* With $pass = 2, we only pull children (comments/likes).
*
* So running this twice, first with pass 1 and then with pass 2 will do the right
* thing regardless of feed ordering. This won't be adequate in a fully-threaded
* model where comments can have sub-threads. That would require some massive sorting
* to get all the feed items into a mostly linear ordering, and might still require
* recursion.
*/
function consume_feed($xml, array $importer, array $contact, &$hub, $datedir = 0, $pass = 0)
{
if ($contact['network'] === Protocol::OSTATUS) {
if ($pass < 2) {
// Test - remove before flight
//$tempfile = tempnam(get_temppath(), "ostatus2");
//file_put_contents($tempfile, $xml);
Logger::log("Consume OStatus messages ", Logger::DEBUG);
OStatus::import($xml, $importer, $contact, $hub);
}
return;
}
if ($contact['network'] === Protocol::FEED) {
if ($pass < 2) {
Logger::log("Consume feeds", Logger::DEBUG);
Feed::import($xml, $importer, $contact, $hub);
}
return;
}
if ($contact['network'] === Protocol::DFRN) {
Logger::log("Consume DFRN messages", Logger::DEBUG);
$dfrn_importer = DFRN::getImporter($contact["id"], $importer["uid"]);
if (!empty($dfrn_importer)) {
Logger::log("Now import the DFRN feed");
DFRN::import($xml, $dfrn_importer, true);
return;
}
}
}
function subscribe_to_hub($url, array $importer, array $contact, $hubmode = 'subscribe')
{
/*
* Diaspora has different message-ids in feeds than they do
* through the direct Diaspora protocol. If we try and use
* the feed, we'll get duplicates. So don't.
*/
if ($contact['network'] === Protocol::DIASPORA) {
return;
}
// Without an importer we don't have a user id - so we quit
if (empty($importer)) {
return;
}
$a = BaseObject::getApp();
$user = DBA::selectFirst('user', ['nickname'], ['uid' => $importer['uid']]);
// No user, no nickname, we quit
if (!DBA::isResult($user)) {
return;
}
$push_url = System::baseUrl() . '/pubsub/' . $user['nickname'] . '/' . $contact['id'];
// Use a single verify token, even if multiple hubs
$verify_token = ((strlen($contact['hub-verify'])) ? $contact['hub-verify'] : Strings::getRandomHex());
$params= 'hub.mode=' . $hubmode . '&hub.callback=' . urlencode($push_url) . '&hub.topic=' . urlencode($contact['poll']) . '&hub.verify=async&hub.verify_token=' . $verify_token;
Logger::log('subscribe_to_hub: ' . $hubmode . ' ' . $contact['name'] . ' to hub ' . $url . ' endpoint: ' . $push_url . ' with verifier ' . $verify_token);
if (!strlen($contact['hub-verify']) || ($contact['hub-verify'] != $verify_token)) {
DBA::update('contact', ['hub-verify' => $verify_token], ['id' => $contact['id']]);
}
$postResult = Network::post($url, $params);
Logger::log('subscribe_to_hub: returns: ' . $postResult->getReturnCode(), Logger::DEBUG);
return;
}
function drop_items(array $items)
{
$uid = 0;
if (!local_user() && !remote_user()) {
return;
}
if (!empty($items)) {
foreach ($items as $item) {
$owner = Item::deleteForUser(['id' => $item], local_user());
if ($owner && !$uid) {
$uid = $owner;
}
}
}
}
function drop_item($id, $return = '')
{
$a = BaseObject::getApp();
// locate item to be deleted
$fields = ['id', 'uid', 'guid', 'contact-id', 'deleted', 'gravity', 'parent'];
$item = Item::selectFirstForUser(local_user(), $fields, ['id' => $id]);
if (!DBA::isResult($item)) {
notice(L10n::t('Item not found.') . EOL);
$a->internalRedirect('network');
}
if ($item['deleted']) {
return 0;
}
$contact_id = 0;
// check if logged in user is either the author or owner of this item
if (!empty($_SESSION['remote'])) {
foreach ($_SESSION['remote'] as $visitor) {
if ($visitor['uid'] == $item['uid'] && $visitor['cid'] == $item['contact-id']) {
$contact_id = $visitor['cid'];
break;
}
}
}
if ((local_user() == $item['uid']) || $contact_id) {
// Check if we should do HTML-based delete confirmation
if (!empty($_REQUEST['confirm'])) {
// <form> can't take arguments in its "action" parameter
// so add any arguments as hidden inputs
$query = explode_querystring($a->query_string);
$inputs = [];
foreach ($query['args'] as $arg) {
if (strpos($arg, 'confirm=') === false) {
$arg_parts = explode('=', $arg);
$inputs[] = ['name' => $arg_parts[0], 'value' => $arg_parts[1]];
}
}
return Renderer::replaceMacros(Renderer::getMarkupTemplate('confirm.tpl'), [
'$method' => 'get',
'$message' => L10n::t('Do you really want to delete this item?'),
'$extra_inputs' => $inputs,
'$confirm' => L10n::t('Yes'),
'$confirm_url' => $query['base'],
'$confirm_name' => 'confirmed',
'$cancel' => L10n::t('Cancel'),
]);
}
// Now check how the user responded to the confirmation query
if (!empty($_REQUEST['canceled'])) {
$a->internalRedirect('display/' . $item['guid']);
}
$is_comment = ($item['gravity'] == GRAVITY_COMMENT) ? true : false;
$parentitem = null;
if (!empty($item['parent'])){
$fields = ['guid'];
$parentitem = Item::selectFirstForUser(local_user(), $fields, ['id' => $item['parent']]);
}
// delete the item
Item::deleteForUser(['id' => $item['id']], local_user());
$return_url = hex2bin($return);
// removes update_* from return_url to ignore Ajax refresh
$return_url = str_replace("update_", "", $return_url);
// Check if delete a comment
if ($is_comment) {
// Return to parent guid
if (!empty($parentitem)) {
$a->internalRedirect('display/' . $parentitem['guid']);
//NOTREACHED
}
// In case something goes wrong
else {
$a->internalRedirect('network');
//NOTREACHED
}
}
else {
// if unknown location or deleting top level post called from display
if (empty($return_url) || strpos($return_url, 'display') !== false) {
$a->internalRedirect('network');
//NOTREACHED
} else {
$a->internalRedirect($return_url);
//NOTREACHED
}
}
} else {
notice(L10n::t('Permission denied.') . EOL);
$a->internalRedirect('display/' . $item['guid']);
//NOTREACHED
}
}
/* arrange the list in years */
function list_post_dates($uid, $wall)
{
$dnow = DateTimeFormat::localNow('Y-m-d');
$dthen = Item::firstPostDate($uid, $wall);
if (!$dthen) {
return [];
}
// Set the start and end date to the beginning of the month
$dnow = substr($dnow, 0, 8) . '01';
$dthen = substr($dthen, 0, 8) . '01';
$ret = [];
/*
* Starting with the current month, get the first and last days of every
* month down to and including the month of the first post
*/
while (substr($dnow, 0, 7) >= substr($dthen, 0, 7)) {
$dyear = intval(substr($dnow, 0, 4));
$dstart = substr($dnow, 0, 8) . '01';
$dend = substr($dnow, 0, 8) . Temporal::getDaysInMonth(intval($dnow), intval(substr($dnow, 5)));
$start_month = DateTimeFormat::utc($dstart, 'Y-m-d');
$end_month = DateTimeFormat::utc($dend, 'Y-m-d');
$str = L10n::getDay(DateTimeFormat::utc($dnow, 'F'));
if (empty($ret[$dyear])) {
$ret[$dyear] = [];
}
$ret[$dyear][] = [$str, $end_month, $start_month];
$dnow = DateTimeFormat::utc($dnow . ' -1 month', 'Y-m-d');
}
return $ret;
}
function posted_date_widget($url, $uid, $wall)
{
$o = '';
if (!Feature::isEnabled($uid, 'archives')) {
return $o;
}
// For former Facebook folks that left because of "timeline"
/*
* @TODO old-lost code?
if ($wall && intval(PConfig::get($uid, 'system', 'no_wall_archive_widget')))
return $o;
*/
$visible_years = PConfig::get($uid, 'system', 'archive_visible_years', 5);
$ret = list_post_dates($uid, $wall);
if (!DBA::isResult($ret)) {
return $o;
}
$cutoff_year = intval(DateTimeFormat::localNow('Y')) - $visible_years;
$cutoff = ((array_key_exists($cutoff_year, $ret))? true : false);
$o = Renderer::replaceMacros(Renderer::getMarkupTemplate('posted_date_widget.tpl'),[
'$title' => L10n::t('Archives'),
'$size' => $visible_years,
'$cutoff_year' => $cutoff_year,
'$cutoff' => $cutoff,
'$url' => $url,
'$dates' => $ret,
'$showmore' => L10n::t('show more')
]);
return $o;
}