1157 lines
30 KiB
PHP
1157 lines
30 KiB
PHP
<?php
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set_time_limit(0);
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define ( 'BUILD_ID', 1010 );
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define ( 'DFRN_PROTOCOL_VERSION', '2.0' );
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define ( 'EOL', "<br />\r\n" );
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define ( 'ATOM_TIME', 'Y-m-d\TH:i:s\Z' );
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// registration policy
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define ( 'REGISTER_CLOSED', 0 );
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define ( 'REGISTER_APPROVE', 1 );
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define ( 'REGISTER_OPEN', 2 );
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// relationship types
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define ( 'REL_VIP', 1);
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define ( 'REL_FAN', 2);
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define ( 'REL_BUD', 3);
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// page/profile types
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// PAGE_NORMAL is a typical personal profile account
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// PAGE_SOAPBOX automatically approves all friend requests as REL_FAN, (readonly)
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// PAGE_COMMUNITY automatically approves all friend requests as REL_FAN, but with
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// write access to wall and comments (no email and not included in page owner's ACL lists)
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// PAGE_FREELOVE automatically approves all friend requests as full friends (REL_BUD).
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define ( 'PAGE_NORMAL', 0 );
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define ( 'PAGE_SOAPBOX', 1 );
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define ( 'PAGE_COMMUNITY', 2 );
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define ( 'PAGE_FREELOVE', 3 );
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// Maximum number of "people who like (or don't like) this"
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// that we will list by name
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define ( 'MAX_LIKERS', 75);
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// email notification options
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define ( 'NOTIFY_INTRO', 0x0001 );
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define ( 'NOTIFY_CONFIRM', 0x0002 );
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define ( 'NOTIFY_WALL', 0x0004 );
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define ( 'NOTIFY_COMMENT', 0x0008 );
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define ( 'NOTIFY_MAIL', 0x0010 );
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// various namespaces we may need to parse
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define ( 'NAMESPACE_DFRN' , 'http://purl.org/macgirvin/dfrn/1.0' );
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define ( 'NAMESPACE_THREAD' , 'http://purl.org/syndication/thread/1.0' );
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define ( 'NAMESPACE_TOMB' , 'http://purl.org/atompub/tombstones/1.0' );
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define ( 'NAMESPACE_ACTIVITY', 'http://activitystrea.ms/spec/1.0/' );
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define ( 'NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/');
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define ( 'NAMESPACE_SALMON_ME', 'http://salmon-protocol.org/ns/magic-env');
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define ( 'NAMESPACE_OSTATUSSUB', 'http://ostatus.org/schema/1.0/subscribe');
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// activity stream defines
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define ( 'ACTIVITY_LIKE', NAMESPACE_ACTIVITY_SCHEMA . 'like' );
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define ( 'ACTIVITY_DISLIKE', NAMESPACE_DFRN . '/dislike' );
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define ( 'ACTIVITY_OBJ_HEART', NAMESPACE_DFRN . '/heart' );
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define ( 'ACTIVITY_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'make-friend' );
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define ( 'ACTIVITY_POST', NAMESPACE_ACTIVITY_SCHEMA . 'post' );
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define ( 'ACTIVITY_UPDATE', NAMESPACE_ACTIVITY_SCHEMA . 'update' );
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define ( 'ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment' );
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define ( 'ACTIVITY_OBJ_NOTE', NAMESPACE_ACTIVITY_SCHEMA . 'note' );
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define ( 'ACTIVITY_OBJ_PERSON', NAMESPACE_ACTIVITY_SCHEMA . 'person' );
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define ( 'ACTIVITY_OBJ_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'photo' );
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define ( 'ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo' );
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define ( 'ACTIVITY_OBJ_ALBUM', NAMESPACE_ACTIVITY_SCHEMA . 'photo-album' );
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// item weight for query ordering
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define ( 'GRAVITY_PARENT', 0);
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define ( 'GRAVITY_LIKE', 3);
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define ( 'GRAVITY_COMMENT', 6);
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// Our main application structure for the life of this page
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// Primarily deals with the URL that got us here
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// and tries to make some sense of it, and
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// stores our page contents and config storage
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// and anything else that might need to be passed around
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// before we spit the page out.
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if(! class_exists('App')) {
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class App {
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public $module_loaded = false;
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public $config;
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public $page;
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public $profile;
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public $user;
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public $cid;
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public $contact;
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public $content;
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public $data;
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public $error = false;
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public $cmd;
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public $argv;
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public $argc;
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public $module;
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public $pager;
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public $strings;
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public $path;
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public $interactive = true;
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private $scheme;
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private $hostname;
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private $baseurl;
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private $db;
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private $curl_code;
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function __construct() {
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$this->config = array();
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$this->page = array();
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$this->pager= array();
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$this->scheme = ((isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'])) ? 'https' : 'http' );
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$this->hostname = $_SERVER['SERVER_NAME'];
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set_include_path("include/$this->hostname" . PATH_SEPARATOR . 'include' . PATH_SEPARATOR . '.' );
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if(substr($_SERVER['QUERY_STRING'],0,2) == "q=")
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$_SERVER['QUERY_STRING'] = substr($_SERVER['QUERY_STRING'],2);
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$this->cmd = trim($_GET['q'],'/');
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$this->argv = explode('/',$this->cmd);
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$this->argc = count($this->argv);
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if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
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$this->module = $this->argv[0];
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}
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else {
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$this->module = 'home';
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}
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if($this->cmd === '.well-known/host-meta')
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require_once('include/hostxrd.php');
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$this->pager['page'] = ((x($_GET,'page')) ? $_GET['page'] : 1);
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$this->pager['itemspage'] = 50;
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$this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
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$this->pager['total'] = 0;
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}
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function get_baseurl($ssl = false) {
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if(strlen($this->baseurl))
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return $this->baseurl;
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$this->baseurl = (($ssl) ? 'https' : $this->scheme) . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
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return $this->baseurl;
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}
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function set_baseurl($url) {
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$this->baseurl = $url;
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$this->hostname = basename($url);
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}
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function get_hostname() {
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return $this->hostname;
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}
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function set_hostname($h) {
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$this->hostname = $h;
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}
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function set_path($p) {
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$this->path = trim(trim($p),'/');
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}
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function get_path() {
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return $this->path;
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}
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function set_pager_total($n) {
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$this->pager['total'] = intval($n);
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}
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function set_pager_itemspage($n) {
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$this->pager['itemspage'] = intval($n);
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$this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
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}
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function init_pagehead() {
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$tpl = load_view_file("view/head.tpl");
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$this->page['htmlhead'] = replace_macros($tpl,array(
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'$baseurl' => $this->get_baseurl()
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));
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}
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function set_curl_code($code) {
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$this->curl_code = $code;
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}
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function get_curl_code() {
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return $this->curl_code;
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}
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}}
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// retrieve the App structure
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// useful in functions which require it but don't get it passed to them
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if(! function_exists('get_app')) {
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function get_app() {
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global $a;
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return $a;
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}};
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// Multi-purpose function to check variable state.
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// Usage: x($var) or $x($array,'key')
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// returns false if variable/key is not set
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// if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
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// e.g. x('') or x(0) returns 0;
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if(! function_exists('x')) {
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function x($s,$k = NULL) {
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if($k != NULL) {
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if((is_array($s)) && (array_key_exists($k,$s))) {
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if($s[$k])
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return (int) 1;
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return (int) 0;
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}
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return false;
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}
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else {
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if(isset($s)) {
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if($s) {
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return (int) 1;
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}
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return (int) 0;
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}
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return false;
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}
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}}
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// called from db initialisation if db is dead.
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if(! function_exists('system_unavailable')) {
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function system_unavailable() {
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include('system_unavailable.php');
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killme();
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}}
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// Primarily involved with database upgrade, but also sets the
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// base url for use in cmdline programs which don't have
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// $_SERVER variables.
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if(! function_exists('check_config')) {
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function check_config(&$a) {
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load_config('system');
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$build = get_config('system','build');
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if(! x($build))
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$build = set_config('system','build',BUILD_ID);
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$url = get_config('system','url');
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if(! x($url))
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$url = set_config('system','url',$a->get_baseurl());
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if($build != BUILD_ID) {
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$stored = intval($build);
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$current = intval(BUILD_ID);
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if(($stored < $current) && file_exists('update.php')) {
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// We're reporting a different version than what is currently installed.
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// Run any existing update scripts to bring the database up to current.
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require_once('update.php');
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for($x = $stored; $x < $current; $x ++) {
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if(function_exists('update_' . $x)) {
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$func = 'update_' . $x;
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$func($a);
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}
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}
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set_config('system','build', BUILD_ID);
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}
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}
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return;
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}}
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// This is our template processor.
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// $s is the string requiring macro substitution.
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// $r is an array of key value pairs (search => replace)
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// returns substituted string.
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// WARNING: this is pretty basic, and doesn't properly handle search strings that are substrings of each other.
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// For instance if 'test' => "foo" and 'testing' => "bar", testing could become either bar or fooing,
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// depending on the order in which they were declared in the array.
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if(! function_exists('replace_macros')) {
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function replace_macros($s,$r) {
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$search = array();
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$replace = array();
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if(is_array($r) && count($r)) {
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foreach ($r as $k => $v ) {
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$search[] = $k;
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$replace[] = $v;
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}
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}
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return str_replace($search,$replace,$s);
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}}
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// load string translation table for alternate language
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if(! function_exists('load_translation_table')) {
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function load_translation_table($lang) {
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global $a;
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if(file_exists("view/$lang/strings.php"))
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include("view/$lang/strings.php");
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}}
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// translate string if translation exists
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if(! function_exists('t')) {
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function t($s) {
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$a = get_app();
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if($a->strings[$s])
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return $a->strings[$s];
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return $s;
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}}
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// curl wrapper. If binary flag is true, return binary
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// results.
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if(! function_exists('fetch_url')) {
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function fetch_url($url,$binary = false) {
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$ch = curl_init($url);
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if(! $ch) return false;
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curl_setopt($ch, CURLOPT_HEADER, 0);
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curl_setopt($ch, CURLOPT_FOLLOWLOCATION,true);
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curl_setopt($ch, CURLOPT_MAXREDIRS,8);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
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// by default we will allow self-signed certs
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// but you can override this
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$check_cert = get_config('system','verifyssl');
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curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
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$prx = get_config('system','proxy');
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if(strlen($prx)) {
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curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
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curl_setopt($ch, CURLOPT_PROXY, $prx);
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$prxusr = get_config('system','proxyuser');
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if(strlen($prxusr))
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curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
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}
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if($binary)
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curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
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$s = curl_exec($ch);
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$info = curl_getinfo($ch);
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$a = get_app();
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$a->set_curl_code($info['http_code']);
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curl_close($ch);
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return($s);
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}}
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// post request to $url. $params is an array of post variables.
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if(! function_exists('post_url')) {
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function post_url($url,$params) {
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$ch = curl_init($url);
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if(! $ch) return false;
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curl_setopt($ch, CURLOPT_HEADER, 0);
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curl_setopt($ch, CURLOPT_FOLLOWLOCATION,true);
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curl_setopt($ch, CURLOPT_MAXREDIRS,8);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
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curl_setopt($ch, CURLOPT_POST,1);
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curl_setopt($ch, CURLOPT_POSTFIELDS,$params);
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$check_cert = get_config('system','verifyssl');
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curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
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$prx = get_config('system','proxy');
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if(strlen($prx)) {
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curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
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curl_setopt($ch, CURLOPT_PROXY, $prx);
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$prxusr = get_config('system','proxyuser');
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if(strlen($prxusr))
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curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
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}
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$s = curl_exec($ch);
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$info = curl_getinfo($ch);
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$a = get_app();
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$a->set_curl_code($info['http_code']);
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curl_close($ch);
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return($s);
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}}
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// random hash, 64 chars
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if(! function_exists('random_string')) {
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function random_string() {
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return(hash('sha256',uniqid(rand(),true)));
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}}
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// This is our primary input filter. The high bit hack only involved some old
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// IE browser, forget which.
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// Use this on any text input where angle chars are not valid or permitted
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// They will be replaced with safer brackets. This may be filtered further
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// if these are not allowed either.
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if(! function_exists('notags')) {
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function notags($string) {
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// protect against :<> with high-bit set
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return(str_replace(array("<",">","\xBA","\xBC","\xBE"), array('[',']','','',''), $string));
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}}
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// use this on "body" or "content" input where angle chars shouldn't be removed,
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// and allow them to be safely displayed.
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if(! function_exists('escape_tags')) {
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function escape_tags($string) {
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return(htmlspecialchars($string));
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}}
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// wrapper for adding a login box. If $register == true provide a registration
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// link. This will most always depend on the value of $a->config['register_policy'].
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// returns the complete html for inserting into the page
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if(! function_exists('login')) {
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function login($register = false) {
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$o = "";
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$register_html = (($register) ? load_view_file("view/register-link.tpl") : "");
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if(x($_SESSION,'authenticated')) {
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$o = load_view_file("view/logout.tpl");
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}
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else {
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$o = load_view_file("view/login.tpl");
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$o = replace_macros($o,array('$register_html' => $register_html ));
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}
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return $o;
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}}
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// generate a string that's random, but usually pronounceable.
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// used to generate initial passwords
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if(! function_exists('autoname')) {
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function autoname($len) {
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$vowels = array('a','a','ai','au','e','e','e','ee','ea','i','ie','o','ou','u');
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if(mt_rand(0,5) == 4)
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$vowels[] = 'y';
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$cons = array(
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'b','bl','br',
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'c','ch','cl','cr',
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'd','dr',
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'f','fl','fr',
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'g','gh','gl','gr',
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'h',
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'j',
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'k','kh','kl','kr',
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'l',
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'm',
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'n',
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'p','ph','pl','pr',
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'qu',
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'r','rh',
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's','sc','sh','sm','sp','st',
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't','th','tr',
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'v',
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'w','wh',
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'x',
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'z','zh'
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);
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$midcons = array('ck','ct','gn','ld','lf','lm','lt','mb','mm', 'mn','mp',
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'nd','ng','nk','nt','rn','rp','rt');
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$noend = array('bl', 'br', 'cl','cr','dr','fl','fr','gl','gr',
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'kh', 'kl','kr','mn','pl','pr','rh','tr','qu','wh');
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$start = mt_rand(0,2);
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if($start == 0)
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$table = $vowels;
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else
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$table = $cons;
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$word = '';
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for ($x = 0; $x < $len; $x ++) {
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$r = mt_rand(0,count($table) - 1);
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$word .= $table[$r];
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if($table == $vowels)
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$table = array_merge($cons,$midcons);
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else
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$table = $vowels;
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}
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$word = substr($word,0,$len);
|
|
|
|
foreach($noend as $noe) {
|
|
if((strlen($word) > 2) && (substr($word,-2) == $noe)) {
|
|
$word = substr($word,0,-1);
|
|
break;
|
|
}
|
|
}
|
|
if(substr($word,-1) == 'q')
|
|
$word = substr($word,0,-1);
|
|
return $word;
|
|
}}
|
|
|
|
// Used to end the current process, after saving session state.
|
|
|
|
if(! function_exists('killme')) {
|
|
function killme() {
|
|
session_write_close();
|
|
exit;
|
|
}}
|
|
|
|
// redirect to another URL and terminate this process.
|
|
|
|
if(! function_exists('goaway')) {
|
|
function goaway($s) {
|
|
header("Location: $s");
|
|
killme();
|
|
}}
|
|
|
|
// Generic XML return
|
|
// Outputs a basic dfrn XML status structure to STDOUT, with a <status> variable
|
|
// of $st and an optional text <message> of $message and terminates the current process.
|
|
|
|
if(! function_exists('xml_status')) {
|
|
function xml_status($st, $message = '') {
|
|
|
|
if(strlen($message))
|
|
$xml_message = "\t<message>" . xmlify($message) . "</message>\r\n";
|
|
|
|
header( "Content-type: text/xml" );
|
|
echo '<?xml version="1.0" encoding="UTF-8"?>'."\r\n";
|
|
echo "<result>\r\n\t<status>$st</status>\r\n$xml_message</result>\r\n";
|
|
killme();
|
|
}}
|
|
|
|
// Returns the uid of locally logged in user or false.
|
|
|
|
if(! function_exists('local_user')) {
|
|
function local_user() {
|
|
if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
|
|
return intval($_SESSION['uid']);
|
|
return false;
|
|
}}
|
|
|
|
// Returns contact id of authenticated site visitor or false
|
|
|
|
if(! function_exists('remote_user')) {
|
|
function remote_user() {
|
|
if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
|
|
return intval($_SESSION['visitor_id']);
|
|
return false;
|
|
}}
|
|
|
|
// contents of $s are displayed prominently on the page the next time
|
|
// a page is loaded. Usually used for errors or alerts.
|
|
|
|
if(! function_exists('notice')) {
|
|
function notice($s) {
|
|
$a = get_app();
|
|
if($a->interactive)
|
|
$_SESSION['sysmsg'] .= $s;
|
|
}}
|
|
|
|
// wrapper around config to limit the text length of an incoming message
|
|
|
|
if(! function_exists('get_max_import_size')) {
|
|
function get_max_import_size() {
|
|
global $a;
|
|
return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
|
|
}}
|
|
|
|
|
|
// escape text ($str) for XML transport
|
|
// returns escaped text.
|
|
|
|
if(! function_exists('xmlify')) {
|
|
function xmlify($str) {
|
|
$buffer = '';
|
|
|
|
for($x = 0; $x < strlen($str); $x ++) {
|
|
$char = $str[$x];
|
|
|
|
switch( $char ) {
|
|
|
|
case "\r" :
|
|
break;
|
|
case "&" :
|
|
$buffer .= '&';
|
|
break;
|
|
case "'" :
|
|
$buffer .= ''';
|
|
break;
|
|
|
|
case "\"" :
|
|
$buffer .= '"';
|
|
break;
|
|
case '<' :
|
|
$buffer .= '<';
|
|
break;
|
|
case '>' :
|
|
$buffer .= '>';
|
|
break;
|
|
case "\n" :
|
|
$buffer .= ' ';
|
|
break;
|
|
default :
|
|
$buffer .= $char;
|
|
break;
|
|
}
|
|
}
|
|
$buffer = trim($buffer);
|
|
return($buffer);
|
|
}}
|
|
|
|
// undo an xmlify
|
|
// pass xml escaped text ($s), returns unescaped text
|
|
|
|
if(! function_exists('unxmlify')) {
|
|
function unxmlify($s) {
|
|
$ret = str_replace('&','&', $s);
|
|
$ret = str_replace(array('<','>','"','''),array('<','>','"',"'"),$ret);
|
|
return $ret;
|
|
}}
|
|
|
|
// convenience wrapper, reverse the operation "bin2hex"
|
|
|
|
if(! function_exists('hex2bin')) {
|
|
function hex2bin($s) {
|
|
return(pack("H*",$s));
|
|
}}
|
|
|
|
// Automatic pagination.
|
|
// To use, get the count of total items.
|
|
// Then call $a->set_pager_total($number_items);
|
|
// Optionally call $a->set_pager_itemspage($n) to the number of items to display on each page
|
|
// Then call paginate($a) after the end of the display loop to insert the pager block on the page
|
|
// (assuming there are enough items to paginate).
|
|
// When using with SQL, the setting LIMIT %d, %d => $a->pager['start'],$a->pager['itemspage']
|
|
// will limit the results to the correct items for the current page.
|
|
// The actual page handling is then accomplished at the application layer.
|
|
|
|
if(! function_exists('paginate')) {
|
|
function paginate(&$a) {
|
|
$o = '';
|
|
$stripped = ereg_replace("(&page=[0-9]*)","",$_SERVER['QUERY_STRING']);
|
|
$stripped = str_replace('q=','',$stripped);
|
|
$stripped = trim($stripped,'/');
|
|
$url = $a->get_baseurl() . '/' . $stripped;
|
|
|
|
|
|
if($a->pager['total'] > $a->pager['itemspage']) {
|
|
$o .= '<div class="pager">';
|
|
if($a->pager['page'] != 1)
|
|
$o .= '<span class="pager_prev">'."<a href=\"$url".'&page='.($a->pager['page'] - 1).'">' . t('prev') . '</a></span> ';
|
|
|
|
$o .= "<span class=\"pager_first\"><a href=\"$url"."&page=1\">" . t('first') . "</a></span> ";
|
|
|
|
$numpages = $a->pager['total'] / $a->pager['itemspage'];
|
|
|
|
$numstart = 1;
|
|
$numstop = $numpages;
|
|
|
|
if($numpages > 14) {
|
|
$numstart = (($pagenum > 7) ? ($pagenum - 7) : 1);
|
|
$numstop = (($pagenum > ($numpages - 7)) ? $numpages : ($numstart + 14));
|
|
}
|
|
|
|
for($i = $numstart; $i <= $numstop; $i++){
|
|
if($i == $a->pager['page'])
|
|
$o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
|
|
else
|
|
$o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
|
|
$o .= '</span> ';
|
|
}
|
|
|
|
if(($a->pager['total'] % $a->pager['itemspage']) != 0) {
|
|
if($i == $a->pager['page'])
|
|
$o .= '<span class="pager_current">'.(($i < 10) ? ' '.$i : $i);
|
|
else
|
|
$o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? ' '.$i : $i)."</a>";
|
|
$o .= '</span> ';
|
|
}
|
|
|
|
$lastpage = (($numpages > intval($numpages)) ? intval($numpages)+1 : $numpages);
|
|
$o .= "<span class=\"pager_last\"><a href=\"$url"."&page=$lastpage\">" . t('last') . "</a></span> ";
|
|
|
|
if(($a->pager['total'] - ($a->pager['itemspage'] * $a->pager['page'])) > 0)
|
|
$o .= '<span class="pager_next">'."<a href=\"$url"."&page=".($a->pager['page'] + 1).'">' . t('next') . '</a></span>';
|
|
$o .= '</div>'."\r\n";
|
|
}
|
|
return $o;
|
|
}}
|
|
|
|
// Turn user/group ACLs stored as angle bracketed text into arrays
|
|
|
|
if(! function_exists('expand_acl')) {
|
|
function expand_acl($s) {
|
|
// turn string array of angle-bracketed elements into numeric array
|
|
// e.g. "<1><2><3>" => array(1,2,3);
|
|
$ret = array();
|
|
|
|
if(strlen($s)) {
|
|
$t = str_replace('<','',$s);
|
|
$a = explode('>',$t);
|
|
foreach($a as $aa) {
|
|
if(intval($aa))
|
|
$ret[] = intval($aa);
|
|
}
|
|
}
|
|
return $ret;
|
|
}}
|
|
|
|
// Used to wrap ACL elements in angle brackets for storage
|
|
|
|
if(! function_exists('sanitise_acl')) {
|
|
function sanitise_acl(&$item) {
|
|
if(intval($item))
|
|
$item = '<' . intval(notags(trim($item))) . '>';
|
|
else
|
|
unset($item);
|
|
}}
|
|
|
|
// retrieve a "family" of config variables from database to cached storage
|
|
|
|
if(! function_exists('load_config')) {
|
|
function load_config($family) {
|
|
global $a;
|
|
$r = q("SELECT * FROM `config` WHERE `cat` = '%s'",
|
|
dbesc($family)
|
|
);
|
|
if(count($r)) {
|
|
foreach($r as $rr) {
|
|
$k = $rr['k'];
|
|
$a->config[$family][$k] = $rr['v'];
|
|
}
|
|
}
|
|
}}
|
|
|
|
// get a particular config variable given the family name
|
|
// and key. Returns false if not set.
|
|
// $instore is only used by the set_config function
|
|
// to determine if the key already exists in the DB
|
|
// If a key is found in the DB but doesn't exist in
|
|
// local config cache, pull it into the cache so we don't have
|
|
// to hit the DB again for this item.
|
|
|
|
if(! function_exists('get_config')) {
|
|
function get_config($family, $key, $instore = false) {
|
|
|
|
global $a;
|
|
|
|
if(! $instore) {
|
|
if(isset($a->config[$family][$key])) {
|
|
if($a->config[$family][$key] === '!<unset>!') {
|
|
return false;
|
|
}
|
|
return $a->config[$family][$key];
|
|
}
|
|
}
|
|
$ret = q("SELECT `v` FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
|
|
dbesc($family),
|
|
dbesc($key)
|
|
);
|
|
if(count($ret)) {
|
|
$a->config[$family][$key] = $ret[0]['v'];
|
|
return $ret[0]['v'];
|
|
}
|
|
else {
|
|
$a->config[$family][$key] = '!<unset>!';
|
|
}
|
|
return false;
|
|
}}
|
|
|
|
// Store a config value ($value) in the category ($family)
|
|
// under the key ($key)
|
|
// Return the value, or false if the database update failed
|
|
|
|
if(! function_exists('set_config')) {
|
|
function set_config($family,$key,$value) {
|
|
|
|
global $a;
|
|
$a->config[$family][$key] = $value;
|
|
|
|
if(get_config($family,$key,true) === false) {
|
|
$ret = q("INSERT INTO `config` ( `cat`, `k`, `v` ) VALUES ( '%s', '%s', '%s' ) ",
|
|
dbesc($family),
|
|
dbesc($key),
|
|
dbesc($value)
|
|
);
|
|
if($ret)
|
|
return $value;
|
|
return $ret;
|
|
}
|
|
$ret = q("UPDATE `config` SET `v` = '%s' WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
|
|
dbesc($value),
|
|
dbesc($family),
|
|
dbesc($key)
|
|
);
|
|
if($ret)
|
|
return $value;
|
|
return $ret;
|
|
}}
|
|
|
|
// convert an XML document to a normalised, case-corrected array
|
|
// used by webfinger
|
|
|
|
if(! function_exists('convert_xml_element_to_array')) {
|
|
function convert_xml_element_to_array($xml_element, &$recursion_depth=0) {
|
|
|
|
// If we're getting too deep, bail out
|
|
if ($recursion_depth > 512) {
|
|
return(null);
|
|
}
|
|
|
|
if (!is_string($xml_element) &&
|
|
!is_array($xml_element) &&
|
|
(get_class($xml_element) == 'SimpleXMLElement')) {
|
|
$xml_element_copy = $xml_element;
|
|
$xml_element = get_object_vars($xml_element);
|
|
}
|
|
|
|
if (is_array($xml_element)) {
|
|
$result_array = array();
|
|
if (count($xml_element) <= 0) {
|
|
return (trim(strval($xml_element_copy)));
|
|
}
|
|
|
|
foreach($xml_element as $key=>$value) {
|
|
|
|
$recursion_depth++;
|
|
$result_array[strtolower($key)] =
|
|
convert_xml_element_to_array($value, $recursion_depth);
|
|
$recursion_depth--;
|
|
}
|
|
if ($recursion_depth == 0) {
|
|
$temp_array = $result_array;
|
|
$result_array = array(
|
|
strtolower($xml_element_copy->getName()) => $temp_array,
|
|
);
|
|
}
|
|
|
|
return ($result_array);
|
|
|
|
} else {
|
|
return (trim(strval($xml_element)));
|
|
}
|
|
}}
|
|
|
|
// Given an email style address, perform webfinger lookup and
|
|
// return the resulting DFRN profile URL, or if no DFRN profile URL
|
|
// is located, returns an OStatus subscription template (prefixed
|
|
// with the string 'stat:' to identify it as on OStatus template).
|
|
// If this isn't an email style address just return $s.
|
|
// Return an empty string if email-style addresses but webfinger fails,
|
|
// or if the resultant personal XRD doesn't contain a supported
|
|
// subscription/friend-request attribute.
|
|
|
|
if(! function_exists('webfinger_dfrn')) {
|
|
function webfinger_dfrn($s) {
|
|
if(! strstr($s,'@')) {
|
|
return $s;
|
|
}
|
|
$links = webfinger($s);
|
|
if(count($links)) {
|
|
foreach($links as $link)
|
|
if($link['@attributes']['rel'] === NAMESPACE_DFRN)
|
|
return $link['@attributes']['href'];
|
|
foreach($links as $link)
|
|
if($link['@attributes']['rel'] === NAMESPACE_OSTATUSSUB)
|
|
return 'stat:' . $link['@attributes']['template'];
|
|
}
|
|
return '';
|
|
}}
|
|
|
|
// Given an email style address, perform webfinger lookup and
|
|
// return the array of link attributes from the personal XRD file.
|
|
// On error/failure return an empty array.
|
|
|
|
|
|
if(! function_exists('webfinger')) {
|
|
function webfinger($s) {
|
|
$host = '';
|
|
if(strstr($s,'@')) {
|
|
$host = substr($s,strpos($s,'@') + 1);
|
|
}
|
|
if(strlen($host)) {
|
|
$tpl = fetch_lrdd_template($host);
|
|
if(strlen($tpl)) {
|
|
$pxrd = str_replace('{uri}', urlencode('acct://'.$s), $tpl);
|
|
$links = fetch_xrd_links($pxrd);
|
|
if(! count($links)) {
|
|
// try without the double slashes
|
|
$pxrd = str_replace('{uri}', urlencode('acct:'.$s), $tpl);
|
|
$links = fetch_xrd_links($pxrd);
|
|
}
|
|
return $links;
|
|
}
|
|
}
|
|
return array();
|
|
}}
|
|
|
|
// Given a host name, locate the LRDD template from that
|
|
// host. Returns the LRDD template or an empty string on
|
|
// error/failure.
|
|
|
|
if(! function_exists('fetch_lrdd_template')) {
|
|
function fetch_lrdd_template($host) {
|
|
$tpl = '';
|
|
$url = 'http://' . $host . '/.well-known/host-meta' ;
|
|
$links = fetch_xrd_links($url);
|
|
if(count($links)) {
|
|
foreach($links as $link)
|
|
if($link['@attributes']['rel'] && $link['@attributes']['rel'] === 'lrdd')
|
|
$tpl = $link['@attributes']['template'];
|
|
}
|
|
if(! strpos($tpl,'{uri}'))
|
|
$tpl = '';
|
|
return $tpl;
|
|
}}
|
|
|
|
// Given a URL, retrieve the page as an XRD document.
|
|
// Return an array of links.
|
|
// on error/failure return empty array.
|
|
|
|
if(! function_exists('fetch_xrd_links')) {
|
|
function fetch_xrd_links($url) {
|
|
|
|
$xml = fetch_url($url);
|
|
if (! $xml)
|
|
return array();
|
|
$h = simplexml_load_string($xml);
|
|
$arr = convert_xml_element_to_array($h);
|
|
|
|
if(isset($arr['xrd']['link'])) {
|
|
$link = $arr['xrd']['link'];
|
|
if(! isset($link[0]))
|
|
$links = array($link);
|
|
else
|
|
$links = $link;
|
|
return $links;
|
|
}
|
|
return array();
|
|
}}
|
|
|
|
// Convert an ACL array to a storable string
|
|
|
|
if(! function_exists('perms2str')) {
|
|
function perms2str($p) {
|
|
$ret = '';
|
|
$tmp = $p;
|
|
if(is_array($tmp)) {
|
|
array_walk($tmp,'sanitise_acl');
|
|
$ret = implode('',$tmp);
|
|
}
|
|
return $ret;
|
|
}}
|
|
|
|
// generate a guaranteed unique (for this domain) item ID for ATOM
|
|
// safe from birthday paradox
|
|
|
|
if(! function_exists('item_new_uri')) {
|
|
function item_new_uri($hostname,$uid) {
|
|
|
|
do {
|
|
$dups = false;
|
|
$hash = random_string();
|
|
|
|
$uri = "urn:X-dfrn:" . $hostname . ':' . $uid . ':' . $hash;
|
|
|
|
$r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
|
|
dbesc($uri));
|
|
if(count($r))
|
|
$dups = true;
|
|
} while($dups == true);
|
|
return $uri;
|
|
}}
|
|
|
|
// Generate a guaranteed unique photo ID.
|
|
// safe from birthday paradox
|
|
|
|
if(! function_exists('photo_new_resource')) {
|
|
function photo_new_resource() {
|
|
|
|
do {
|
|
$found = false;
|
|
$resource = hash('md5',uniqid(mt_rand(),true));
|
|
$r = q("SELECT `id` FROM `photo` WHERE `resource-id` = '%s' LIMIT 1",
|
|
dbesc($resource)
|
|
);
|
|
if(count($r))
|
|
$found = true;
|
|
} while($found == true);
|
|
return $resource;
|
|
}}
|
|
|
|
|
|
// Take a URL from the wild, prepend http:// if necessary
|
|
// and check DNS to see if it's real
|
|
// return true if it's OK, false if something is wrong with it
|
|
|
|
if(! function_exists('validate_url')) {
|
|
function validate_url(&$url) {
|
|
if(substr($url,0,4) != 'http')
|
|
$url = 'http://' . $url;
|
|
$h = parse_url($url);
|
|
|
|
if(! $h) {
|
|
return false;
|
|
}
|
|
if(! checkdnsrr($h['host'], 'ANY')) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}}
|
|
|
|
// Check $url against our list of allowed sites,
|
|
// wildcards allowed. If allowed_sites is unset return true;
|
|
// If url is allowed, return true.
|
|
// otherwise, return false
|
|
|
|
if(! function_exists('allowed_url')) {
|
|
function allowed_url($url) {
|
|
|
|
$h = parse_url($url);
|
|
|
|
if(! $h) {
|
|
return false;
|
|
}
|
|
|
|
$str_allowed = get_config('system','allowed_sites');
|
|
if(! $str_allowed)
|
|
return true;
|
|
|
|
$found = false;
|
|
|
|
$host = strtolower($h['host']);
|
|
|
|
// always allow our own site
|
|
|
|
if($host == strtolower($_SERVER['SERVER_NAME']))
|
|
return true;
|
|
|
|
$fnmatch = function_exists('fnmatch');
|
|
$allowed = explode(',',$str_allowed);
|
|
|
|
if(count($allowed)) {
|
|
foreach($allowed as $a) {
|
|
$pat = strtolower(trim($a));
|
|
if(($fnmatch && fnmatch($pat,$host)) || ($pat == $host)) {
|
|
$found = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return $found;
|
|
}}
|
|
|
|
// check if email address is allowed to register here.
|
|
// Compare against our list (wildcards allowed).
|
|
// Returns false if not allowed, true if allowed or if
|
|
// allowed list is not configured.
|
|
|
|
if(! function_exists('allowed_email')) {
|
|
function allowed_email($email) {
|
|
|
|
|
|
$domain = strtolower(substr($email,strpos($email,'@') + 1));
|
|
if(! $domain)
|
|
return false;
|
|
|
|
$str_allowed = get_config('system','allowed_email');
|
|
if(! $str_allowed)
|
|
return true;
|
|
|
|
$found = false;
|
|
|
|
$fnmatch = function_exists('fnmatch');
|
|
$allowed = explode(',',$str_allowed);
|
|
|
|
if(count($allowed)) {
|
|
foreach($allowed as $a) {
|
|
$pat = strtolower(trim($a));
|
|
if(($fnmatch && fnmatch($pat,$host)) || ($pat == $host)) {
|
|
$found = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return $found;
|
|
}}
|
|
|
|
// Format the like/dislike text for a profile item
|
|
// $cnt = number of people who like/dislike the item
|
|
// $arr = array of pre-linked names of likers/dislikers
|
|
// $type = one of 'like, 'dislike'
|
|
// $id = item id
|
|
// returns formatted text
|
|
|
|
if(! function_exists('format_like')) {
|
|
function format_like($cnt,$arr,$type,$id) {
|
|
if($cnt == 1)
|
|
$o .= $arr[0] . (($type === 'like') ? t(' likes this.') : t(' doesn\'t like this.')) . EOL ;
|
|
else {
|
|
$o .= '<span class="fakelink" onclick="openClose(\'' . $type . 'list-' . $id . '\');" >'
|
|
. $cnt . ' ' . t('people') . '</span> ' . (($type === 'like') ? t('like this.') : t('don\'t like this.')) . EOL ;
|
|
$total = count($arr);
|
|
if($total >= MAX_LIKERS)
|
|
$arr = array_slice($arr, 0, MAX_LIKERS - 1);
|
|
if($total < MAX_LIKERS)
|
|
$arr[count($arr)-1] = t('and') . ' ' . $arr[count($arr)-1];
|
|
$str = implode(', ', $arr);
|
|
if($total >= MAX_LIKERS)
|
|
$str .= t(', and ') . $total - MAX_LIKERS . t(' other people');
|
|
$str .= (($type === 'like') ? t(' like this.') : t(' don\'t like this.'));
|
|
$o .= "\t" . '<div id="' . $type . 'list-' . $id . '" style="display: none;" >' . $str . '</div>';
|
|
}
|
|
return $o;
|
|
}}
|
|
|
|
|
|
// wrapper to load a view template, checking for alternate
|
|
// languages before falling back to the default
|
|
|
|
if(! function_exists('load_view_file')) {
|
|
function load_view_file($s) {
|
|
$b = basename($s);
|
|
$d = dirname($s);
|
|
$lang = get_config('system','language');
|
|
if($lang && file_exists("$d/$lang/$b"))
|
|
return file_get_contents("$d/$lang/$b");
|
|
return file_get_contents($s);
|
|
}}
|
|
|
|
|