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friendica/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\Core\System;
use Friendica\Core\Cache;
use Friendica\Core\Config;
use Friendica\Core\PConfig;
use Friendica\Core\Worker;
use Friendica\Database\DBM;
use Friendica\Util\Lock;
require_once 'include/network.php';
require_once 'include/plugin.php';
require_once 'include/text.php';
require_once 'include/datetime.php';
require_once 'include/pgettext.php';
require_once 'include/nav.php';
require_once 'include/features.php';
require_once 'include/identity.php';
require_once 'update.php';
require_once 'include/dbstructure.php';
define('FRIENDICA_PLATFORM', 'Friendica');
define('FRIENDICA_CODENAME', 'Asparagus');
define('FRIENDICA_VERSION', '3.6-dev');
define('DFRN_PROTOCOL_VERSION', '2.23');
define('DB_UPDATE_VERSION', 1235);
/**
* @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");
define('ATOM_TIME', 'Y-m-d\TH:i:s\Z');
/**
* @brief Image storage quality.
*
* Lower numbers save space at cost of image detail.
* For ease of upgrade, please do not change here. Change jpeg quality with
* $a->config['system']['jpeg_quality'] = n;
* in .htconfig.php, where n is netween 1 and 100, and with very poor results
* below about 50
*/
define('JPEG_QUALITY', 100);
/**
* $a->config['system']['png_quality'] from 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
*
* $a->config['system']['max_image_length'] = n;
*
* in .htconfig.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_NORMAL', 0);
define('LOGGER_TRACE', 1);
define('LOGGER_DEBUG', 2);
define('LOGGER_DATA', 3);
define('LOGGER_ALL', 4);
/* @}*/
/**
* @name Cache
*
* Cache levels
* @{
*/
define('CACHE_MONTH', 0);
define('CACHE_WEEK', 1);
define('CACHE_DAY', 2);
define('CACHE_HOUR', 3);
define('CACHE_HALF_HOUR', 4);
define('CACHE_QUARTER_HOUR', 5);
define('CACHE_FIVE_MINUTES', 6);
define('CACHE_MINUTE', 7);
/* @}*/
/**
* @name Register
*
* Registration policies
* @{
*/
define('REGISTER_CLOSED', 0);
define('REGISTER_APPROVE', 1);
define('REGISTER_OPEN', 2);
/**
* @}
*/
/**
* @name Contact_is
*
* Relationship types
* @{
*/
define('CONTACT_IS_FOLLOWER', 1);
define('CONTACT_IS_SHARING', 2);
define('CONTACT_IS_FRIEND', 3);
/**
* @}
*/
/**
* @name Update
*
* DB update return values
* @{
*/
define('UPDATE_SUCCESS', 0);
define('UPDATE_FAILED', 1);
/**
* @}
*/
/**
* @name page/profile types
*
* PAGE_NORMAL is a typical personal profile account
* PAGE_SOAPBOX automatically approves all friend requests as CONTACT_IS_SHARING, (readonly)
* PAGE_COMMUNITY automatically approves all friend requests as CONTACT_IS_SHARING, but with
* write access to wall and comments (no email and not included in page owner's ACL lists)
* PAGE_FREELOVE automatically approves all friend requests as full friends (CONTACT_IS_FRIEND).
*
* @{
*/
define('PAGE_NORMAL', 0);
define('PAGE_SOAPBOX', 1);
define('PAGE_COMMUNITY', 2);
define('PAGE_FREELOVE', 3);
define('PAGE_BLOG', 4);
define('PAGE_PRVGROUP', 5);
/**
* @}
*/
/**
* @name account types
*
* ACCOUNT_TYPE_PERSON - the account belongs to a person
* Associated page types: PAGE_NORMAL, PAGE_SOAPBOX, PAGE_FREELOVE
*
* ACCOUNT_TYPE_ORGANISATION - the account belongs to an organisation
* Associated page type: PAGE_SOAPBOX
*
* ACCOUNT_TYPE_NEWS - the account is a news reflector
* Associated page type: PAGE_SOAPBOX
*
* ACCOUNT_TYPE_COMMUNITY - the account is community forum
* Associated page types: PAGE_COMMUNITY, PAGE_PRVGROUP
* @{
*/
define('ACCOUNT_TYPE_PERSON', 0);
define('ACCOUNT_TYPE_ORGANISATION', 1);
define('ACCOUNT_TYPE_NEWS', 2);
define('ACCOUNT_TYPE_COMMUNITY', 3);
/**
* @}
*/
/**
* @name CP
*
* Type of the community page
* @{
*/
define('CP_NO_COMMUNITY_PAGE', -1);
define('CP_USERS_ON_SERVER', 0);
define('CP_GLOBAL_COMMUNITY', 1);
/**
* @}
*/
/**
* @name Protocols
*
* Different protocols that we are storing
* @{
*/
define('PROTOCOL_UNKNOWN', 0);
define('PROTOCOL_DFRN', 1);
define('PROTOCOL_DIASPORA', 2);
define('PROTOCOL_OSTATUS_SALMON', 3);
define('PROTOCOL_OSTATUS_FEED', 4); // Deprecated
define('PROTOCOL_GS_CONVERSATION', 5); // Deprecated
define('PROTOCOL_SPLITTED_CONV', 6);
/**
* @}
*/
/**
* @name Network
*
* Network and protocol family types
* @{
*/
define('NETWORK_DFRN', 'dfrn'); // Friendica, Mistpark, other DFRN implementations
define('NETWORK_ZOT', 'zot!'); // Zot!
define('NETWORK_OSTATUS', 'stat'); // status.net, identi.ca, GNU-social, other OStatus implementations
define('NETWORK_FEED', 'feed'); // RSS/Atom feeds with no known "post/notify" protocol
define('NETWORK_DIASPORA', 'dspr'); // Diaspora
define('NETWORK_MAIL', 'mail'); // IMAP/POP
define('NETWORK_MAIL2', 'mai2'); // extended IMAP/POP
define('NETWORK_FACEBOOK', 'face'); // Facebook API
define('NETWORK_LINKEDIN', 'lnkd'); // LinkedIn
define('NETWORK_XMPP', 'xmpp'); // XMPP
define('NETWORK_MYSPACE', 'mysp'); // MySpace
define('NETWORK_GPLUS', 'goog'); // Google+
define('NETWORK_PUMPIO', 'pump'); // pump.io
define('NETWORK_TWITTER', 'twit'); // Twitter
define('NETWORK_DIASPORA2', 'dspc'); // Diaspora connector
define('NETWORK_STATUSNET', 'stac'); // Statusnet connector
define('NETWORK_APPNET', 'apdn'); // app.net
define('NETWORK_NEWS', 'nntp'); // Network News Transfer Protocol
define('NETWORK_ICALENDAR', 'ical'); // iCalendar
define('NETWORK_PNUT', 'pnut'); // pnut.io
define('NETWORK_PHANTOM', 'unkn'); // Place holder
/**
* @}
*/
/**
* 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 = array(
NETWORK_DFRN => (-1),
NETWORK_ZOT => (-2),
NETWORK_OSTATUS => (-3),
NETWORK_FEED => (-4),
NETWORK_DIASPORA => (-5),
NETWORK_MAIL => (-6),
NETWORK_MAIL2 => (-7),
NETWORK_FACEBOOK => (-8),
NETWORK_LINKEDIN => (-9),
NETWORK_XMPP => (-10),
NETWORK_MYSPACE => (-11),
NETWORK_GPLUS => (-12),
NETWORK_PUMPIO => (-13),
NETWORK_TWITTER => (-14),
NETWORK_DIASPORA2 => (-15),
NETWORK_STATUSNET => (-16),
NETWORK_APPNET => (-17),
NETWORK_NEWS => (-18),
NETWORK_ICALENDAR => (-19),
NETWORK_PNUT => (-20),
NETWORK_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_MOOD', NAMESPACE_ZOT . '/activity/mood');
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_LIKE', 3);
define('GRAVITY_COMMENT', 6);
/* @}*/
/**
* @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);
}
/**
* Reverse the effect of magic_quotes_gpc if it is enabled.
* Please disable magic_quotes_gpc so we don't have to do this.
* See http://php.net/manual/en/security.magicquotes.disabling.php
*/
function startup()
{
error_reporting(E_ERROR | E_WARNING | E_PARSE);
set_time_limit(0);
// This has to be quite large to deal with embedded private photos
ini_set('pcre.backtrack_limit', 500000);
if (get_magic_quotes_gpc()) {
$process = array(&$_GET, &$_POST, &$_COOKIE, &$_REQUEST);
while (list($key, $val) = each($process)) {
foreach ($val as $k => $v) {
unset($process[$key][$k]);
if (is_array($v)) {
$process[$key][stripslashes($k)] = $v;
$process[] = &$process[$key][stripslashes($k)];
} else {
$process[$key][stripslashes($k)] = stripslashes($v);
}
}
}
unset($process);
}
}
/**
* @brief Retrieve the App structure
*
* Useful in functions which require it but don't get it passed to them
*/
function get_app()
{
global $a;
if (empty($a)) {
$a = new App(dirname(__DIR__));
}
return $a;
}
/**
* @brief Multi-purpose function to check variable state.
*
* Usage: x($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;
}
}
/**
* @brief Called from db initialisation if db is dead.
*/
function system_unavailable()
{
include 'system_unavailable.php';
system_down();
killme();
}
/**
* @brief Returns the baseurl.
*
* @see System::baseUrl()
*
* @return string
* @TODO Function is deprecated and only used in some addons
*/
function z_root()
{
return System::baseUrl();
}
/**
* @brief Return absolut URL for given $path.
*
* @param string $path given path
*
* @return string
*/
function absurl($path)
{
if (strpos($path, '/') === 0) {
return z_path() . $path;
}
return $path;
}
/**
* @brief Function to check if request was an AJAX (xmlhttprequest) request.
*
* @return boolean
*/
function is_ajax()
{
return (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest');
}
/**
* @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)
{
$build = Config::get('system', 'build');
if (!x($build)) {
Config::set('system', 'build', DB_UPDATE_VERSION);
$build = DB_UPDATE_VERSION;
}
if ($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(get_app());
}
}
}
/**
* Sets the base url for use in cmdline programs which don't have
* $_SERVER variables
*
* @param object $a App
*/
function check_url(App $a)
{
$url = Config::get('system', 'url');
// if the url isn't set or the stored url is radically different
// than the currently visited url, store the current value accordingly.
// "Radically different" ignores common variations such as http vs https
// and www.example.com vs example.com.
// We will only change the url to an ip address if there is no existing setting
if (!x($url)) {
$url = Config::set('system', 'url', System::baseUrl());
}
if ((!link_compare($url, System::baseUrl())) && (!preg_match("/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/", $a->get_hostname))) {
$url = Config::set('system', 'url', System::baseUrl());
}
return;
}
/**
* @brief Automatic database updates
* @param object $a App
*/
function update_db(App $a)
{
$build = Config::get('system', 'build');
if (!x($build)) {
$build = Config::set('system', 'build', DB_UPDATE_VERSION);
}
if ($build != DB_UPDATE_VERSION) {
$stored = intval($build);
$current = intval(DB_UPDATE_VERSION);
if ($stored < $current) {
Config::load('database');
// We're reporting a different version than what is currently installed.
// Run any existing update scripts to bring the database up to current.
// make sure that boot.php and update.php are the same release, we might be
// updating right this very second and the correct version of the update.php
// file may not be here yet. This can happen on a very busy site.
if (DB_UPDATE_VERSION == UPDATE_VERSION) {
// Compare the current structure with the defined structure
$t = Config::get('database', 'dbupdate_' . DB_UPDATE_VERSION);
if ($t !== false) {
return;
}
Config::set('database', 'dbupdate_' . DB_UPDATE_VERSION, time());
// run old update routine (wich could modify the schema and
// conflits with new routine)
for ($x = $stored; $x < NEW_UPDATE_ROUTINE_VERSION; $x++) {
$r = run_update_function($x);
if (!$r) {
break;
}
}
if ($stored < NEW_UPDATE_ROUTINE_VERSION) {
$stored = NEW_UPDATE_ROUTINE_VERSION;
}
// run new update routine
// it update the structure in one call
$retval = update_structure(false, true);
if ($retval) {
update_fail(
DB_UPDATE_VERSION,
$retval
);
return;
} else {
Config::set('database', 'dbupdate_' . DB_UPDATE_VERSION, 'success');
}
// run any left update_nnnn functions in update.php
for ($x = $stored; $x < $current; $x ++) {
$r = run_update_function($x);
if (!$r) {
break;
}
}
}
}
}
return;
}
function run_update_function($x)
{
if (function_exists('update_' . $x)) {
// 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', 'update_' . $x);
if ($t !== false) {
return false;
}
Config::set('database', 'update_' . $x, time());
// call the specific update
$func = 'update_' . $x;
$retval = $func();
if ($retval) {
//send the administrator an e-mail
update_fail(
$x,
sprintf(t('Update %s failed. See error logs.'), $x)
);
return false;
} else {
Config::set('database', 'update_' . $x, 'success');
Config::set('system', 'build', $x + 1);
return true;
}
} else {
Config::set('database', 'update_' . $x, 'success');
Config::set('system', 'build', $x + 1);
return true;
}
return true;
}
/**
* @brief Synchronise plugins:
*
* $a->config['system']['addon'] contains a comma-separated list of names
* of plugins/addons which are used on this system.
* Go through the database list of already installed addons, and if we have
* an entry, but it isn't in the config list, call the uninstall procedure
* and mark it uninstalled in the database (for now we'll remove it).
* Then go through the config list and if we have a plugin that isn't installed,
* call the install procedure and add it to the database.
*
* @param object $a App
*/
function check_plugins(App $a)
{
$r = q("SELECT * FROM `addon` WHERE `installed` = 1");
if (DBM::is_result($r)) {
$installed = $r;
} else {
$installed = array();
}
$plugins = Config::get('system', 'addon');
$plugins_arr = array();
if ($plugins) {
$plugins_arr = explode(',', str_replace(' ', '', $plugins));
}
$a->plugins = $plugins_arr;
$installed_arr = array();
if (count($installed)) {
foreach ($installed as $i) {
if (!in_array($i['name'], $plugins_arr)) {
uninstall_plugin($i['name']);
} else {
$installed_arr[] = $i['name'];
}
}
}
if (count($plugins_arr)) {
foreach ($plugins_arr as $p) {
if (!in_array($p, $installed_arr)) {
install_plugin($p);
}
}
}
load_hooks();
return;
}
function get_guid($size = 16, $prefix = "")
{
if ($prefix == "") {
$a = get_app();
$prefix = hash("crc32", $a->get_hostname());
}
while (strlen($prefix) < ($size - 13)) {
$prefix .= mt_rand();
}
if ($size >= 24) {
$prefix = substr($prefix, 0, $size - 22);
return(str_replace(".", "", uniqid($prefix, true)));
} else {
$prefix = substr($prefix, 0, max($size - 13, 0));
return(uniqid($prefix));
}
}
/**
* @brief Wrapper for adding a login box.
*
* @param bool $register If $register == true provide a registration link.
* This will most always depend on the value of $a->config['register_policy'].
* @param bool $hiddens optional
*
* @return string Returns the complete html for inserting into the page
*
* @hooks 'login_hook'
* string $o
*/
function login($register = false, $hiddens = false)
{
$a = get_app();
$o = "";
$reg = false;
if ($register) {
$reg = array(
'title' => t('Create a New Account'),
'desc' => t('Register')
);
}
$noid = Config::get('system', 'no_openid');
$dest_url = $a->query_string;
if (local_user()) {
$tpl = get_markup_template("logout.tpl");
} else {
$a->page['htmlhead'] .= replace_macros(
get_markup_template("login_head.tpl"),
array(
'$baseurl' => $a->get_baseurl(true)
)
);
$tpl = get_markup_template("login.tpl");
$_SESSION['return_url'] = $a->query_string;
$a->module = 'login';
}
$o .= replace_macros(
$tpl,
array(
'$dest_url' => $dest_url,
'$logout' => t('Logout'),
'$login' => t('Login'),
'$lname' => array('username', t('Nickname or Email: ') , '', ''),
'$lpassword' => array('password', t('Password: '), '', ''),
'$lremember' => array('remember', t('Remember me'), 0, ''),
'$openid' => !$noid,
'$lopenid' => array('openid_url', t('Or login using OpenID: '),'',''),
'$hiddens' => $hiddens,
'$register' => $reg,
'$lostpass' => t('Forgot your password?'),
'$lostlink' => t('Password Reset'),
'$tostitle' => t('Website Terms of Service'),
'$toslink' => t('terms of service'),
'$privacytitle' => t('Website Privacy Policy'),
'$privacylink' => t('privacy policy'),
)
);
call_hooks('login_hook', $o);
return $o;
}
/**
* @brief Used to end the current process, after saving session state.
*/
function killme()
{
global $session_exists;
if (!get_app()->is_backend()) {
if (!$session_exists) {
session_abort();
} else {
session_write_close();
}
}
exit();
}
/**
* @brief Redirect to another URL and terminate this process.
*/
function goaway($s)
{
if (!strstr(normalise_link($s), "http://")) {
$s = System::baseUrl() . "/" . $s;
}
header("Location: $s");
killme();
}
/**
* @brief Returns the user id of locally logged in user or false.
*
* @return int|bool user id or false
*/
function local_user()
{
if (x($_SESSION, 'authenticated') && x($_SESSION, 'uid')) {
return intval($_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
$public_contact_id = intval(get_contact($_SESSION['my_address'], 0));
} elseif (x($_SESSION, 'visitor_home')) {
// Remote user
$public_contact_id = intval(get_contact($_SESSION['visitor_home'], 0));
}
} elseif (!x($_SESSION, 'authenticated')) {
$public_contact_id = false;
}
return $public_contact_id;
}
/**
* @brief Returns contact id of authenticated site visitor or false
*
* @return int|bool visitor_id or false
*/
function remote_user()
{
// You cannot be both local and remote
if (local_user()) {
return false;
}
if ((x($_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)
{
$a = get_app();
if (!x($_SESSION, 'sysmsg')) {
$_SESSION['sysmsg'] = array();
}
if ($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')) {
$_SESSION['sysmsg_info'] = array();
}
if ($a->interactive) {
$_SESSION['sysmsg_info'][] = $s;
}
}
/**
* @brief Wrapper around config to limit the text length of an incoming message
*
* @return int
*/
function get_max_import_size()
{
$a = get_app();
return ((x($a->config, 'max_import_size')) ? $a->config['max_import_size'] : 0 );
}
function current_theme()
{
$app_base_themes = array('duepuntozero', 'dispy', 'quattro');
$a = get_app();
$page_theme = null;
// Find the theme that belongs to the user whose stuff we are looking at
if ($a->profile_uid && ($a->profile_uid != local_user())) {
$r = q(
"select theme from user where uid = %d limit 1",
intval($a->profile_uid)
);
if (DBM::is_result($r)) {
$page_theme = $r[0]['theme'];
}
}
// Allow folks to over-rule user themes and always use their own on their own site.
// This works only if the user is on the same server
if ($page_theme && local_user() && (local_user() != $a->profile_uid)) {
if (PConfig::get(local_user(), 'system', 'always_my_theme')) {
$page_theme = null;
}
}
// $mobile_detect = new Mobile_Detect();
// $is_mobile = $mobile_detect->isMobile() || $mobile_detect->isTablet();
$is_mobile = $a->is_mobile || $a->is_tablet;
$standard_system_theme = Config::get('system', 'theme', '');
$standard_theme_name = ((isset($_SESSION) && x($_SESSION, 'theme')) ? $_SESSION['theme'] : $standard_system_theme);
if ($is_mobile) {
if (isset($_SESSION['show-mobile']) && !$_SESSION['show-mobile']) {
$system_theme = $standard_system_theme;
$theme_name = $standard_theme_name;
} else {
$system_theme = Config::get('system', 'mobile-theme', '');
if ($system_theme == '') {
$system_theme = $standard_system_theme;
}
$theme_name = ((isset($_SESSION) && x($_SESSION, 'mobile-theme')) ? $_SESSION['mobile-theme'] : $system_theme);
if ($theme_name === '---') {
// user has selected to have the mobile theme be the same as the normal one
$system_theme = $standard_system_theme;
$theme_name = $standard_theme_name;
if ($page_theme) {
$theme_name = $page_theme;
}
}
}
} else {
$system_theme = $standard_system_theme;
$theme_name = $standard_theme_name;
if ($page_theme) {
$theme_name = $page_theme;
}
}
if ($theme_name
&& (file_exists('view/theme/' . $theme_name . '/style.css')
|| file_exists('view/theme/' . $theme_name . '/style.php'))
) {
return($theme_name);
}
foreach ($app_base_themes as $t) {
if (file_exists('view/theme/' . $t . '/style.css')
|| file_exists('view/theme/' . $t . '/style.php')
) {
return($t);
}
}
$fallback = array_merge(glob('view/theme/*/style.css'), glob('view/theme/*/style.php'));
if (count($fallback)) {
return (str_replace('view/theme/', '', substr($fallback[0], 0, -10)));
}
/// @TODO No final return statement?
}
/**
* @brief Return full URL to theme which is currently in effect.
*
* Provide a sane default if nothing is chosen or the specified theme does not exist.
*
* @return string
*/
function current_theme_url()
{
$a = get_app();
$t = current_theme();
$opts = (($a->profile_uid) ? '?f=&puid=' . $a->profile_uid : '');
if (file_exists('view/theme/' . $t . '/style.php')) {
return('view/theme/' . $t . '/style.pcss' . $opts);
}
return('view/theme/' . $t . '/style.css');
}
function feed_birthday($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';
}
$p = q(
"SELECT `dob` FROM `profile` WHERE `is-default` = 1 AND `uid` = %d LIMIT 1",
intval($uid)
);
if (DBM::is_result($p)) {
$tmp_dob = substr($p[0]['dob'], 5);
if (intval($tmp_dob)) {
$y = datetime_convert($tz, $tz, 'now', 'Y');
$bd = $y . '-' . $tmp_dob . ' 00:00';
$t_dob = strtotime($bd);
$now = strtotime(datetime_convert($tz, $tz, 'now'));
if ($t_dob < $now) {
$bd = $y + 1 . '-' . $tmp_dob . ' 00:00';
}
$birthday = datetime_convert($tz, 'UTC', $bd, ATOM_TIME);
}
}
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();
$adminlist = explode(",", str_replace(" ", "", $a->config['admin_email']));
//if(local_user() && x($a->user,'email') && x($a->config,'admin_email') && ($a->user['email'] === $a->config['admin_email']))
if (local_user() && x($a->user, 'email') && x($a->config, 'admin_email') && in_array($a->user['email'], $adminlist)) {
return true;
}
return false;
}
/**
* @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 array(
'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()
{
$pageURL = 'http';
if ($_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 rand() is different to mt_rand() and maybe lesser "random"
$rn .= rand(0, 9);
}
return $rn;
}
function get_server()
{
$server = Config::get("system", "directory");
if ($server == "") {
$server = "http://dir.friendica.social";
}
return($server);
}
function get_temppath()
{
$a = get_app();
$temppath = Config::get("system", "temppath");
if (($temppath != "") && App::directory_usable($temppath)) {
// We have a temp path and it is usable
return App::realpath($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::directory_usable($temppath)) {
// Always store the real path, not the path through symlinks
$temppath = App::realpath($temppath);
// To avoid any interferences with other systems we create our own directory
$new_temppath = $temppath . "/" . $a->get_hostname();
if (!is_dir($new_temppath)) {
/// @TODO There is a mkdir()+chmod() upwards, maybe generalize this (+ configurable) into a function/method?
mkdir($new_temppath);
}
if (App::directory_usable($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);
}
}
/// @TODO no need to put braces here
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::directory_usable($itemcache)) {
return App::realpath($itemcache);
}
$temppath = get_temppath();
if ($temppath != "") {
$itemcache = $temppath . "/itemcache";
if (!file_exists($itemcache) && !is_dir($itemcache)) {
mkdir($itemcache);
}
if (App::directory_usable($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::directory_usable($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($spoolpath);
}
if (App::directory_usable($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);
}
function current_load()
{
if (!function_exists('sys_getloadavg')) {
return false;
}
$load_arr = sys_getloadavg();
if (!is_array($load_arr)) {
return false;
}
return max($load_arr[0], $load_arr[1]);
}
/**
* @brief get c-style args
*
* @return int
*/
function argc()
{
return get_app()->argc;
}
/**
* @brief Returns the value of a argv key
*
* @param int $x argv key
* @return string Value of the argv key
*/
function argv($x)
{
if (array_key_exists($x, get_app()->argv)) {
return get_app()->argv[$x];
}
return '';
}
/**
* @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')
&& ($module == "network") && ($_GET["mode"] != "minimal")
) {
// get the page number
if (is_string($_GET["page"])) {
$pageno = $_GET["page"];
} else {
$pageno = 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);
}
}
if (($a->page_offset != "") && ! strstr($reload_uri, "&offset=")) {
$reload_uri .= "&offset=" . urlencode($a->page_offset);
}
$arr = array("pageno" => $pageno, "reload_uri" => $reload_uri);
return $arr;
}
}
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