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friendica_2019-12_sharedHos.../boot.php

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<?php
/**
* @file boot.php
* This file defines some global constants and includes the central App class.
*/
/**
* Friendica
*
* Friendica is a communications platform for integrated social communications
* utilising decentralised communications and linkage to several indie social
* projects - as well as popular mainstream providers.
*
* Our mission is to free our friends and families from the clutches of
* data-harvesting corporations, and pave the way to a future where social
* communications are free and open and flow between alternate providers as
* easily as email does today.
*/
require_once __DIR__ . DIRECTORY_SEPARATOR . 'vendor' . DIRECTORY_SEPARATOR . 'autoload.php';
use Friendica\App;
use Friendica\BaseObject;
use Friendica\Core\Addon;
use Friendica\Core\Cache;
use Friendica\Core\Config;
use Friendica\Core\L10n;
use Friendica\Core\PConfig;
use Friendica\Core\Protocol;
use Friendica\Core\System;
use Friendica\Core\Worker;
use Friendica\Database\DBA;
use Friendica\Database\DBStructure;
use Friendica\Model\Contact;
use Friendica\Model\Conversation;
use Friendica\Util\DateTimeFormat;
require_once 'include/text.php';
define('FRIENDICA_PLATFORM', 'Friendica');
define('FRIENDICA_CODENAME', 'The Tazmans Flax-lily');
define('FRIENDICA_VERSION', '2018.12-dev');
define('DFRN_PROTOCOL_VERSION', '2.23');
define('DB_UPDATE_VERSION', 1286);
define('NEW_UPDATE_ROUTINE_VERSION', 1170);
/**
* @brief Constants for the database update check
*/
const DB_UPDATE_NOT_CHECKED = 0; // Database check wasn't executed before
const DB_UPDATE_SUCCESSFUL = 1; // Database check was successful
const DB_UPDATE_FAILED = 2; // Database check failed
/**
* @brief Constant with a HTML line break.
*
* Contains a HTML line break (br) element and a real carriage return with line
* feed for the source.
* This can be used in HTML and JavaScript where needed a line break.
*/
define('EOL', "<br />\r\n");
/**
* @brief Image storage quality.
*
* Lower numbers save space at cost of image detail.
* For ease of upgrade, please do not change here. Set [system] jpegquality = n in config/local.ini.php,
* where n is between 1 and 100, and with very poor results below about 50
*/
define('JPEG_QUALITY', 100);
/**
* [system] png_quality = n where is between 0 (uncompressed) to 9
*/
define('PNG_QUALITY', 8);
/**
* An alternate way of limiting picture upload sizes. Specify the maximum pixel
* length that pictures are allowed to be (for non-square pictures, it will apply
* to the longest side). Pictures longer than this length will be resized to be
* this length (on the longest side, the other side will be scaled appropriately).
* Modify this value using
*
* [system]
* max_image_length = n;
*
* in config/local.ini.php
*
* If you don't want to set a maximum length, set to -1. The default value is
* defined by 'MAX_IMAGE_LENGTH' below.
*/
define('MAX_IMAGE_LENGTH', -1);
/**
* Not yet used
*/
define('DEFAULT_DB_ENGINE', 'InnoDB');
/**
* @name SSL Policy
*
* SSL redirection policies
* @{
*/
define('SSL_POLICY_NONE', 0);
define('SSL_POLICY_FULL', 1);
define('SSL_POLICY_SELFSIGN', 2);
/* @}*/
/**
* @name Logger
*
* log levels
* @{
*/
define('LOGGER_WARNING', 0);
define('LOGGER_INFO', 1);
define('LOGGER_TRACE', 2);
define('LOGGER_DEBUG', 3);
define('LOGGER_DATA', 4);
define('LOGGER_ALL', 5);
/* @}*/
/**
* @name Cache
* @deprecated since version 3.6
* @see Cache
*
* Cache levels
* @{
*/
define('CACHE_MONTH', Cache::MONTH);
define('CACHE_WEEK', Cache::WEEK);
define('CACHE_DAY', Cache::DAY);
define('CACHE_HOUR', Cache::HOUR);
define('CACHE_HALF_HOUR', Cache::HALF_HOUR);
define('CACHE_QUARTER_HOUR', Cache::QUARTER_HOUR);
define('CACHE_FIVE_MINUTES', Cache::FIVE_MINUTES);
define('CACHE_MINUTE', Cache::MINUTE);
/* @}*/
/**
* @name Register
*
* Registration policies
* @{
*/
define('REGISTER_CLOSED', 0);
define('REGISTER_APPROVE', 1);
define('REGISTER_OPEN', 2);
/**
* @}
*/
/**
* @name Update
*
* DB update return values
* @{
*/
define('UPDATE_SUCCESS', 0);
define('UPDATE_FAILED', 1);
/**
* @}
*/
/**
* @name CP
*
* Type of the community page
* @{
*/
define('CP_NO_INTERNAL_COMMUNITY', -2);
define('CP_NO_COMMUNITY_PAGE', -1);
define('CP_USERS_ON_SERVER', 0);
define('CP_GLOBAL_COMMUNITY', 1);
define('CP_USERS_AND_GLOBAL', 2);
/**
* @}
*/
/**
* These numbers are used in stored permissions
* and existing allocations MUST NEVER BE CHANGED
* OR RE-ASSIGNED! You may only add to them.
*/
$netgroup_ids = [
Protocol::DFRN => (-1),
Protocol::ZOT => (-2),
Protocol::OSTATUS => (-3),
Protocol::FEED => (-4),
Protocol::DIASPORA => (-5),
Protocol::MAIL => (-6),
Protocol::FACEBOOK => (-8),
Protocol::LINKEDIN => (-9),
Protocol::XMPP => (-10),
Protocol::MYSPACE => (-11),
Protocol::GPLUS => (-12),
Protocol::PUMPIO => (-13),
Protocol::TWITTER => (-14),
Protocol::DIASPORA2 => (-15),
Protocol::STATUSNET => (-16),
Protocol::NEWS => (-18),
Protocol::ICALENDAR => (-19),
Protocol::PNUT => (-20),
Protocol::PHANTOM => (-127),
];
/**
* Maximum number of "people who like (or don't like) this" that we will list by name
*/
define('MAX_LIKERS', 75);
/**
* Communication timeout
*/
define('ZCURL_TIMEOUT', (-1));
/**
* @name Notify
*
* Email notification options
* @{
*/
define('NOTIFY_INTRO', 0x0001);
define('NOTIFY_CONFIRM', 0x0002);
define('NOTIFY_WALL', 0x0004);
define('NOTIFY_COMMENT', 0x0008);
define('NOTIFY_MAIL', 0x0010);
define('NOTIFY_SUGGEST', 0x0020);
define('NOTIFY_PROFILE', 0x0040);
define('NOTIFY_TAGSELF', 0x0080);
define('NOTIFY_TAGSHARE', 0x0100);
define('NOTIFY_POKE', 0x0200);
define('NOTIFY_SHARE', 0x0400);
define('SYSTEM_EMAIL', 0x4000);
define('NOTIFY_SYSTEM', 0x8000);
/* @}*/
/**
* @name Term
*
* Tag/term types
* @{
*/
define('TERM_UNKNOWN', 0);
define('TERM_HASHTAG', 1);
define('TERM_MENTION', 2);
define('TERM_CATEGORY', 3);
define('TERM_PCATEGORY', 4);
define('TERM_FILE', 5);
define('TERM_SAVEDSEARCH', 6);
define('TERM_CONVERSATION', 7);
define('TERM_OBJ_POST', 1);
define('TERM_OBJ_PHOTO', 2);
/**
* @name Namespaces
*
* Various namespaces we may need to parse
* @{
*/
define('NAMESPACE_ZOT', 'http://purl.org/zot');
define('NAMESPACE_DFRN', 'http://purl.org/macgirvin/dfrn/1.0');
define('NAMESPACE_THREAD', 'http://purl.org/syndication/thread/1.0');
define('NAMESPACE_TOMB', 'http://purl.org/atompub/tombstones/1.0');
define('NAMESPACE_ACTIVITY', 'http://activitystrea.ms/spec/1.0/');
define('NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/');
define('NAMESPACE_MEDIA', 'http://purl.org/syndication/atommedia');
define('NAMESPACE_SALMON_ME', 'http://salmon-protocol.org/ns/magic-env');
define('NAMESPACE_OSTATUSSUB', 'http://ostatus.org/schema/1.0/subscribe');
define('NAMESPACE_GEORSS', 'http://www.georss.org/georss');
define('NAMESPACE_POCO', 'http://portablecontacts.net/spec/1.0');
define('NAMESPACE_FEED', 'http://schemas.google.com/g/2010#updates-from');
define('NAMESPACE_OSTATUS', 'http://ostatus.org/schema/1.0');
define('NAMESPACE_STATUSNET', 'http://status.net/schema/api/1/');
define('NAMESPACE_ATOM1', 'http://www.w3.org/2005/Atom');
define('NAMESPACE_MASTODON', 'http://mastodon.social/schema/1.0');
/* @}*/
/**
* @name Activity
*
* Activity stream defines
* @{
*/
define('ACTIVITY_LIKE', NAMESPACE_ACTIVITY_SCHEMA . 'like');
define('ACTIVITY_DISLIKE', NAMESPACE_DFRN . '/dislike');
define('ACTIVITY_ATTEND', NAMESPACE_ZOT . '/activity/attendyes');
define('ACTIVITY_ATTENDNO', NAMESPACE_ZOT . '/activity/attendno');
define('ACTIVITY_ATTENDMAYBE', NAMESPACE_ZOT . '/activity/attendmaybe');
define('ACTIVITY_OBJ_HEART', NAMESPACE_DFRN . '/heart');
define('ACTIVITY_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'make-friend');
define('ACTIVITY_REQ_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'request-friend');
define('ACTIVITY_UNFRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'remove-friend');
define('ACTIVITY_FOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'follow');
define('ACTIVITY_UNFOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'stop-following');
define('ACTIVITY_JOIN', NAMESPACE_ACTIVITY_SCHEMA . 'join');
define('ACTIVITY_POST', NAMESPACE_ACTIVITY_SCHEMA . 'post');
define('ACTIVITY_UPDATE', NAMESPACE_ACTIVITY_SCHEMA . 'update');
define('ACTIVITY_TAG', NAMESPACE_ACTIVITY_SCHEMA . 'tag');
define('ACTIVITY_FAVORITE', NAMESPACE_ACTIVITY_SCHEMA . 'favorite');
define('ACTIVITY_UNFAVORITE', NAMESPACE_ACTIVITY_SCHEMA . 'unfavorite');
define('ACTIVITY_SHARE', NAMESPACE_ACTIVITY_SCHEMA . 'share');
define('ACTIVITY_DELETE', NAMESPACE_ACTIVITY_SCHEMA . 'delete');
define('ACTIVITY_POKE', NAMESPACE_ZOT . '/activity/poke');
define('ACTIVITY_OBJ_BOOKMARK', NAMESPACE_ACTIVITY_SCHEMA . 'bookmark');
define('ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment');
define('ACTIVITY_OBJ_NOTE', NAMESPACE_ACTIVITY_SCHEMA . 'note');
define('ACTIVITY_OBJ_PERSON', NAMESPACE_ACTIVITY_SCHEMA . 'person');
define('ACTIVITY_OBJ_IMAGE', NAMESPACE_ACTIVITY_SCHEMA . 'image');
define('ACTIVITY_OBJ_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'photo');
define('ACTIVITY_OBJ_VIDEO', NAMESPACE_ACTIVITY_SCHEMA . 'video');
define('ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo');
define('ACTIVITY_OBJ_ALBUM', NAMESPACE_ACTIVITY_SCHEMA . 'photo-album');
define('ACTIVITY_OBJ_EVENT', NAMESPACE_ACTIVITY_SCHEMA . 'event');
define('ACTIVITY_OBJ_GROUP', NAMESPACE_ACTIVITY_SCHEMA . 'group');
define('ACTIVITY_OBJ_TAGTERM', NAMESPACE_DFRN . '/tagterm');
define('ACTIVITY_OBJ_PROFILE', NAMESPACE_DFRN . '/profile');
define('ACTIVITY_OBJ_QUESTION', 'http://activityschema.org/object/question');
/* @}*/
/**
* @name Gravity
*
* Item weight for query ordering
* @{
*/
define('GRAVITY_PARENT', 0);
define('GRAVITY_ACTIVITY', 3);
define('GRAVITY_COMMENT', 6);
define('GRAVITY_UNKNOWN', 9);
/* @}*/
/**
* @name Priority
*
* Process priority for the worker
* @{
*/
define('PRIORITY_UNDEFINED', 0);
define('PRIORITY_CRITICAL', 10);
define('PRIORITY_HIGH', 20);
define('PRIORITY_MEDIUM', 30);
define('PRIORITY_LOW', 40);
define('PRIORITY_NEGLIGIBLE', 50);
/* @}*/
/**
* @name Social Relay settings
*
* See here: https://github.com/jaywink/social-relay
* and here: https://wiki.diasporafoundation.org/Relay_servers_for_public_posts
* @{
*/
define('SR_SCOPE_NONE', '');
define('SR_SCOPE_ALL', 'all');
define('SR_SCOPE_TAGS', 'tags');
/* @}*/
/**
* Lowest possible date time value
*/
define('NULL_DATE', '0001-01-01 00:00:00');
// Normally this constant is defined - but not if "pcntl" isn't installed
if (!defined("SIGTERM")) {
define("SIGTERM", 15);
}
/**
* Depending on the PHP version this constant does exist - or not.
* See here: http://php.net/manual/en/curl.constants.php#117928
*/
if (!defined('CURLE_OPERATION_TIMEDOUT')) {
define('CURLE_OPERATION_TIMEDOUT', CURLE_OPERATION_TIMEOUTED);
}
/**
* @brief Retrieve the App structure
*
* Useful in functions which require it but don't get it passed to them
*
* @return App
*/
function get_app()
{
return BaseObject::getApp();
}
/**
* @brief Multi-purpose function to check variable state.
*
* Usage: x($var) or $x($array, 'key')
*
* returns false if variable/key is not set
* if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
* e.g. x('') or x(0) returns 0;
*
* @param string|array $s variable to check
* @param string $k key inside the array to check
*
* @return bool|int
*/
function x($s, $k = null)
{
if ($k != null) {
if ((is_array($s)) && (array_key_exists($k, $s))) {
if ($s[$k]) {
return (int) 1;
}
return (int) 0;
}
return false;
} else {
if (isset($s)) {
if ($s) {
return (int) 1;
}
return (int) 0;
}
return false;
}
}
/**
* Return the provided variable value if it exists and is truthy or the provided
* default value instead.
*
* Works with initialized variables and potentially uninitialized array keys
*
* Usages:
* - defaults($var, $default)
* - defaults($array, 'key', $default)
*
* @brief Returns a defaut value if the provided variable or array key is falsy
* @see x()
* @return mixed
*/
function defaults() {
$args = func_get_args();
if (count($args) < 2) {
throw new BadFunctionCallException('defaults() requires at least 2 parameters');
}
if (count($args) > 3) {
throw new BadFunctionCallException('defaults() cannot use more than 3 parameters');
}
if (count($args) === 3 && is_null($args[1])) {
throw new BadFunctionCallException('defaults($arr, $key, $def) $key is null');
}
$default = array_pop($args);
if (call_user_func_array('x', $args)) {
if (count($args) === 1) {
$return = $args[0];
} else {
$return = $args[0][$args[1]];
}
} else {
$return = $default;
}
return $return;
}
/**
* @brief Function to check if request was an AJAX (xmlhttprequest) request.
*
* @param boolean $via_worker boolean Is the check run via the worker?
*/
function check_db($via_worker)
{
$build = Config::get('system', 'build');
if (empty($build)) {
Config::set('system', 'build', DB_UPDATE_VERSION - 1);
$build = DB_UPDATE_VERSION - 1;
}
// We don't support upgrading from very old versions anymore
if ($build < NEW_UPDATE_ROUTINE_VERSION) {
die('You try to update from a version prior to database version 1170. The direct upgrade path is not supported. Please update to version 3.5.4 before updating to this version.');
}
if ($build < DB_UPDATE_VERSION) {
// When we cannot execute the database update via the worker, we will do it directly
if (!Worker::add(PRIORITY_CRITICAL, 'DBUpdate') && $via_worker) {
update_db();
}
}
}
/**
* Sets the base url for use in cmdline programs which don't have
* $_SERVER variables
*
* @param object $a App
*/
function check_url(App $a)
{
$url = Config::get('system', 'url');
// if the url isn't set or the stored url is radically different
// than the currently visited url, store the current value accordingly.
// "Radically different" ignores common variations such as http vs https
// and www.example.com vs example.com.
// We will only change the url to an ip address if there is no existing setting
if (empty($url) || (!link_compare($url, System::baseUrl())) && (!preg_match("/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/", $a->getHostName()))) {
Config::set('system', 'url', System::baseUrl());
}
return;
}
/**
* @brief Automatic database updates
* @param object $a App
*/
function update_db()
{
$build = Config::get('system', 'build');
if (empty($build) || ($build > DB_UPDATE_VERSION)) {
$build = DB_UPDATE_VERSION - 1;
Config::set('system', 'build', $build);
}
if ($build != DB_UPDATE_VERSION) {
require_once 'update.php';
$stored = intval($build);
$current = intval(DB_UPDATE_VERSION);
if ($stored < $current) {
Config::load('database');
// Compare the current structure with the defined structure
$t = Config::get('database', 'dbupdate_' . DB_UPDATE_VERSION);
if (!is_null($t)) {
return;
}
// run the pre_update_nnnn functions in update.php
for ($x = $stored + 1; $x <= $current; $x++) {
$r = run_update_function($x, 'pre_update');
if (!$r) {
break;
}
}
Config::set('database', 'dbupdate_' . DB_UPDATE_VERSION, time());
// update the structure in one call
$retval = DBStructure::update(false, true);
if ($retval) {
DBStructure::updateFail(
DB_UPDATE_VERSION,
$retval
);
return;
} else {
Config::set('database', 'dbupdate_' . DB_UPDATE_VERSION, 'success');
}
// run the update_nnnn functions in update.php
for ($x = $stored + 1; $x <= $current; $x++) {
$r = run_update_function($x, 'update');
if (!$r) {
break;
}
}
}
}
return;
}
function run_update_function($x, $prefix)
{
$funcname = $prefix . '_' . $x;
if (function_exists($funcname)) {
// There could be a lot of processes running or about to run.
// We want exactly one process to run the update command.
// So store the fact that we're taking responsibility
// after first checking to see if somebody else already has.
// If the update fails or times-out completely you may need to
// delete the config entry to try again.
$t = Config::get('database', $funcname);
if (!is_null($t)) {
return false;
}
Config::set('database', $funcname, time());
// call the specific update
$retval = $funcname();
if ($retval) {
//send the administrator an e-mail
DBStructure::updateFail(
$x,
L10n::t('Update %s failed. See error logs.', $x)
);
return false;
} else {
Config::set('database', $funcname, 'success');
if ($prefix == 'update') {
Config::set('system', 'build', $x);
}
return true;
}
} else {
Config::set('database', $funcname, 'success');
if ($prefix == 'update') {
Config::set('system', 'build', $x);
}
return true;
}
}
/**
* @brief Used to end the current process, after saving session state.
* @deprecated
*/
function killme()
{
exit();
}
/**
* @brief Redirect to another URL and terminate this process.
*/
function goaway($path)
{
if (strstr(normalise_link($path), 'http://')) {
$url = $path;
} else {
$url = System::baseUrl() . '/' . ltrim($path, '/');
}
header("Location: $url");
killme();
}
/**
* @brief Returns the user id of locally logged in user or false.
*
* @return int|bool user id or false
*/
function local_user()
{
if (!empty($_SESSION['authenticated']) && !empty($_SESSION['uid'])) {
return intval($_SESSION['uid']);
}
return false;
}
/**
* @brief Returns the public contact id of logged in user or false.
*
* @return int|bool public contact id or false
*/
function public_contact()
{
static $public_contact_id = false;
if (!$public_contact_id && x($_SESSION, 'authenticated')) {
if (x($_SESSION, 'my_address')) {
// Local user
$public_contact_id = intval(Contact::getIdForURL($_SESSION['my_address'], 0, true));
} elseif (x($_SESSION, 'visitor_home')) {
// Remote user
$public_contact_id = intval(Contact::getIdForURL($_SESSION['visitor_home'], 0, true));
}
} elseif (!x($_SESSION, 'authenticated')) {
$public_contact_id = false;
}
return $public_contact_id;
}
/**
* @brief Returns contact id of authenticated site visitor or false
*
* @return int|bool visitor_id or false
*/
function remote_user()
{
// You cannot be both local and remote.
// Unncommented by rabuzarus because remote authentication to local
// profiles wasn't possible anymore (2018-04-12).
// if (local_user()) {
// return false;
// }
if (empty($_SESSION)) {
return false;
}
if (x($_SESSION, 'authenticated') && x($_SESSION, 'visitor_id')) {
return intval($_SESSION['visitor_id']);
}
return false;
}
/**
* @brief Show an error message to user.
*
* This function save text in session, to be shown to the user at next page load
*
* @param string $s - Text of notice
*/
function notice($s)
{
if (empty($_SESSION)) {
return;
}
$a = get_app();
if (!x($_SESSION, 'sysmsg')) {
$_SESSION['sysmsg'] = [];
}
if ($a->interactive) {
$_SESSION['sysmsg'][] = $s;
}
}
/**
* @brief Show an info message to user.
*
* This function save text in session, to be shown to the user at next page load
*
* @param string $s - Text of notice
*/
function info($s)
{
$a = get_app();
if (local_user() && PConfig::get(local_user(), 'system', 'ignore_info')) {
return;
}
if (!x($_SESSION, 'sysmsg_info')) {
$_SESSION['sysmsg_info'] = [];
}
if ($a->interactive) {
$_SESSION['sysmsg_info'][] = $s;
}
}
function feed_birthday($uid, $tz)
{
/**
* Determine the next birthday, but only if the birthday is published
* in the default profile. We _could_ also look for a private profile that the
* recipient can see, but somebody could get mad at us if they start getting
* public birthday greetings when they haven't made this info public.
*
* Assuming we are able to publish this info, we are then going to convert
* the start time from the owner's timezone to UTC.
*
* This will potentially solve the problem found with some social networks
* where birthdays are converted to the viewer's timezone and salutations from
* elsewhere in the world show up on the wrong day. We will convert it to the
* viewer's timezone also, but first we are going to convert it from the birthday
* person's timezone to GMT - so the viewer may find the birthday starting at
* 6:00PM the day before, but that will correspond to midnight to the birthday person.
*/
$birthday = '';
if (!strlen($tz)) {
$tz = 'UTC';
}
$profile = DBA::selectFirst('profile', ['dob'], ['is-default' => true, 'uid' => $uid]);
if (DBA::isResult($profile)) {
$tmp_dob = substr($profile['dob'], 5);
if (intval($tmp_dob)) {
$y = DateTimeFormat::timezoneNow($tz, 'Y');
$bd = $y . '-' . $tmp_dob . ' 00:00';
$t_dob = strtotime($bd);
$now = strtotime(DateTimeFormat::timezoneNow($tz));
if ($t_dob < $now) {
$bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
}
$birthday = DateTimeFormat::convert($bd, 'UTC', $tz, DateTimeFormat::ATOM);
}
}
return $birthday;
}
/**
* @brief Check if current user has admin role.
*
* @return bool true if user is an admin
*/
function is_site_admin()
{
$a = get_app();
$admin_email = Config::get('config', 'admin_email');
$adminlist = explode(',', str_replace(' ', '', $admin_email));
return local_user() && $admin_email && in_array(defaults($a->user, 'email', ''), $adminlist);
}
/**
* @brief Returns querystring as string from a mapped array.
*
* @param array $params mapped array with query parameters
* @param string $name of parameter, default null
*
* @return string
*/
function build_querystring($params, $name = null)
{
$ret = "";
foreach ($params as $key => $val) {
if (is_array($val)) {
/// @TODO maybe not compare against null, use is_null()
if ($name == null) {
$ret .= build_querystring($val, $key);
} else {
$ret .= build_querystring($val, $name . "[$key]");
}
} else {
$val = urlencode($val);
/// @TODO maybe not compare against null, use is_null()
if ($name != null) {
/// @TODO two string concated, can be merged to one
$ret .= $name . "[$key]" . "=$val&";
} else {
$ret .= "$key=$val&";
}
}
}
return $ret;
}
function explode_querystring($query)
{
$arg_st = strpos($query, '?');
if ($arg_st !== false) {
$base = substr($query, 0, $arg_st);
$arg_st += 1;
} else {
$base = '';
$arg_st = 0;
}
$args = explode('&', substr($query, $arg_st));
foreach ($args as $k => $arg) {
/// @TODO really compare type-safe here?
if ($arg === '') {
unset($args[$k]);
}
}
$args = array_values($args);
if (!$base) {
$base = $args[0];
unset($args[0]);
$args = array_values($args);
}
return [
'base' => $base,
'args' => $args,
];
}
/**
* Returns the complete URL of the current page, e.g.: http(s)://something.com/network
*
* Taken from http://webcheatsheet.com/php/get_current_page_url.php
*/
function curPageURL()
{
$pageURL = 'http';
if (!empty($_SERVER["HTTPS"]) && ($_SERVER["HTTPS"] == "on")) {
$pageURL .= "s";
}
$pageURL .= "://";
if ($_SERVER["SERVER_PORT"] != "80" && $_SERVER["SERVER_PORT"] != "443") {
$pageURL .= $_SERVER["SERVER_NAME"] . ":" . $_SERVER["SERVER_PORT"] . $_SERVER["REQUEST_URI"];
} else {
$pageURL .= $_SERVER["SERVER_NAME"] . $_SERVER["REQUEST_URI"];
}
return $pageURL;
}
function random_digits($digits)
{
$rn = '';
for ($i = 0; $i < $digits; $i++) {
/// @TODO Avoid rand/mt_rand, when it comes to cryptography, they are generating predictable (seedable) numbers.
$rn .= rand(0, 9);
}
return $rn;
}
function get_server()
{
$server = Config::get("system", "directory");
if ($server == "") {
$server = "https://dir.friendica.social";
}
return $server;
}
function get_temppath()
{
$a = get_app();
$temppath = Config::get("system", "temppath");
if (($temppath != "") && App::isDirectoryUsable($temppath)) {
// We have a temp path and it is usable
return App::getRealPath($temppath);
}
// We don't have a working preconfigured temp path, so we take the system path.
$temppath = sys_get_temp_dir();
// Check if it is usable
if (($temppath != "") && App::isDirectoryUsable($temppath)) {
// Always store the real path, not the path through symlinks
$temppath = App::getRealPath($temppath);
// To avoid any interferences with other systems we create our own directory
$new_temppath = $temppath . "/" . $a->getHostName();
if (!is_dir($new_temppath)) {
/// @TODO There is a mkdir()+chmod() upwards, maybe generalize this (+ configurable) into a function/method?
mkdir($new_temppath);
}
if (App::isDirectoryUsable($new_temppath)) {
// The new path is usable, we are happy
Config::set("system", "temppath", $new_temppath);
return $new_temppath;
} else {
// We can't create a subdirectory, strange.
// But the directory seems to work, so we use it but don't store it.
return $temppath;
}
}
// Reaching this point means that the operating system is configured badly.
return '';
}
function get_cachefile($file, $writemode = true)
{
$cache = get_itemcachepath();
if ((!$cache) || (!is_dir($cache))) {
return "";
}
$subfolder = $cache . "/" . substr($file, 0, 2);
$cachepath = $subfolder . "/" . $file;
if ($writemode) {
if (!is_dir($subfolder)) {
mkdir($subfolder);
chmod($subfolder, 0777);
}
}
return $cachepath;
}
function clear_cache($basepath = "", $path = "")
{
if ($path == "") {
$basepath = get_itemcachepath();
$path = $basepath;
}
if (($path == "") || (!is_dir($path))) {
return;
}
if (substr(realpath($path), 0, strlen($basepath)) != $basepath) {
return;
}
$cachetime = (int) Config::get('system', 'itemcache_duration');
if ($cachetime == 0) {
$cachetime = 86400;
}
if (is_writable($path)) {
if ($dh = opendir($path)) {
while (($file = readdir($dh)) !== false) {
$fullpath = $path . "/" . $file;
if ((filetype($fullpath) == "dir") && ($file != ".") && ($file != "..")) {
clear_cache($basepath, $fullpath);
}
if ((filetype($fullpath) == "file") && (filectime($fullpath) < (time() - $cachetime))) {
unlink($fullpath);
}
}
closedir($dh);
}
}
}
function get_itemcachepath()
{
// Checking, if the cache is deactivated
$cachetime = (int) Config::get('system', 'itemcache_duration');
if ($cachetime < 0) {
return "";
}
$itemcache = Config::get('system', 'itemcache');
if (($itemcache != "") && App::isDirectoryUsable($itemcache)) {
return App::getRealPath($itemcache);
}
$temppath = get_temppath();
if ($temppath != "") {
$itemcache = $temppath . "/itemcache";
if (!file_exists($itemcache) && !is_dir($itemcache)) {
mkdir($itemcache);
}
if (App::isDirectoryUsable($itemcache)) {
Config::set("system", "itemcache", $itemcache);
return $itemcache;
}
}
return "";
}
/**
* @brief Returns the path where spool files are stored
*
* @return string Spool path
*/
function get_spoolpath()
{
$spoolpath = Config::get('system', 'spoolpath');
if (($spoolpath != "") && App::isDirectoryUsable($spoolpath)) {
// We have a spool path and it is usable
return $spoolpath;
}
// We don't have a working preconfigured spool path, so we take the temp path.
$temppath = get_temppath();
if ($temppath != "") {
// To avoid any interferences with other systems we create our own directory
$spoolpath = $temppath . "/spool";
if (!is_dir($spoolpath)) {
mkdir($spoolpath);
}
if (App::isDirectoryUsable($spoolpath)) {
// The new path is usable, we are happy
Config::set("system", "spoolpath", $spoolpath);
return $spoolpath;
} else {
// We can't create a subdirectory, strange.
// But the directory seems to work, so we use it but don't store it.
return $temppath;
}
}
// Reaching this point means that the operating system is configured badly.
return "";
}
if (!function_exists('exif_imagetype')) {
function exif_imagetype($file)
{
$size = getimagesize($file);
return $size[2];
}
}
function validate_include(&$file)
{
$orig_file = $file;
$file = realpath($file);
if (strpos($file, getcwd()) !== 0) {
return false;
}
$file = str_replace(getcwd() . "/", "", $file, $count);
if ($count != 1) {
return false;
}
if ($orig_file !== $file) {
return false;
}
$valid = false;
if (strpos($file, "include/") === 0) {
$valid = true;
}
if (strpos($file, "addon/") === 0) {
$valid = true;
}
// Simply return flag
return $valid;
}
/**
* @brief Get the data which is needed for infinite scroll
*
* For invinite scroll we need the page number of the actual page
* and the the URI where the content of the next page comes from.
* This data is needed for the js part in main.js.
* Note: infinite scroll does only work for the network page (module)
*
* @param string $module The name of the module (e.g. "network")
* @return array Of infinite scroll data
* 'pageno' => $pageno The number of the actual page
* 'reload_uri' => $reload_uri The URI of the content we have to load
*/
function infinite_scroll_data($module)
{
if (PConfig::get(local_user(), 'system', 'infinite_scroll')
&& $module == 'network'
&& defaults($_GET, 'mode', '') != 'minimal'
) {
// get the page number
$pageno = defaults($_GET, 'page', 1);
$reload_uri = "";
// try to get the uri from which we load the content
foreach ($_GET as $param => $value) {
if (($param != "page") && ($param != "q")) {
$reload_uri .= "&" . $param . "=" . urlencode($value);
}
}
$a = get_app();
if ($a->page_offset != "" && !strstr($reload_uri, "&offset=")) {
$reload_uri .= "&offset=" . urlencode($a->page_offset);
}
$arr = ["pageno" => $pageno, "reload_uri" => $reload_uri];
return $arr;
}
}
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