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- <?php
-
- set_time_limit(0);
-
- define ( 'FRIENDIKA_VERSION', '2.1.955' );
- define ( 'DFRN_PROTOCOL_VERSION', '2.21' );
- define ( 'DB_UPDATE_VERSION', 1053 );
-
- define ( 'EOL', "<br />\r\n" );
- define ( 'ATOM_TIME', 'Y-m-d\TH:i:s\Z' );
- define ( 'DOWN_ARROW', '⇩' );
-
-
- /**
- * SSL redirection policies
- */
-
- define ( 'SSL_POLICY_NONE', 0 );
- define ( 'SSL_POLICY_FULL', 1 );
- define ( 'SSL_POLICY_SELFSIGN', 2 );
-
-
- /**
- * log levels
- */
-
- define ( 'LOGGER_NORMAL', 0 );
- define ( 'LOGGER_TRACE', 1 );
- define ( 'LOGGER_DEBUG', 2 );
- define ( 'LOGGER_DATA', 3 );
- define ( 'LOGGER_ALL', 4 );
-
- /**
- * registration policies
- */
-
- define ( 'REGISTER_CLOSED', 0 );
- define ( 'REGISTER_APPROVE', 1 );
- define ( 'REGISTER_OPEN', 2 );
-
- /**
- * relationship types
- * When used in contact records, this indicates that 'uid' has
- * this relationship with contact['name']
- */
-
- define ( 'REL_VIP', 1);
- define ( 'REL_FAN', 2);
- define ( 'REL_BUD', 3);
-
- /**
- * Hook array order
- */
-
- define ( 'HOOK_HOOK', 0);
- define ( 'HOOK_FILE', 1);
- define ( 'HOOK_FUNCTION', 2);
-
- /**
- *
- * page/profile types
- *
- * PAGE_NORMAL is a typical personal profile account
- * PAGE_SOAPBOX automatically approves all friend requests as REL_FAN, (readonly)
- * PAGE_COMMUNITY automatically approves all friend requests as REL_FAN, 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 (REL_BUD).
- *
- */
-
- define ( 'PAGE_NORMAL', 0 );
- define ( 'PAGE_SOAPBOX', 1 );
- define ( 'PAGE_COMMUNITY', 2 );
- define ( 'PAGE_FREELOVE', 3 );
-
- /**
- * Network and protocol family types
- */
-
- define ( 'NETWORK_DFRN', 'dfrn'); // Friendika, Mistpark, other DFRN implementations
- 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_FACEBOOK', 'face'); // Facebook API
-
-
- /**
- * Maximum number of "people who like (or don't like) this" that we will list by name
- */
-
- define ( 'MAX_LIKERS', 75);
-
- /**
- * email notification options
- */
-
- define ( 'NOTIFY_INTRO', 0x0001 );
- define ( 'NOTIFY_CONFIRM', 0x0002 );
- define ( 'NOTIFY_WALL', 0x0004 );
- define ( 'NOTIFY_COMMENT', 0x0008 );
- define ( 'NOTIFY_MAIL', 0x0010 );
-
- /**
- * various namespaces we may need to parse
- */
-
- 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' );
-
- /**
- * activity stream defines
- */
-
- define ( 'ACTIVITY_LIKE', NAMESPACE_ACTIVITY_SCHEMA . 'like' );
- define ( 'ACTIVITY_DISLIKE', NAMESPACE_DFRN . '/dislike' );
- define ( 'ACTIVITY_OBJ_HEART', NAMESPACE_DFRN . '/heart' );
-
- define ( 'ACTIVITY_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'make-friend' );
- define ( 'ACTIVITY_FOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'follow' );
- define ( 'ACTIVITY_UNFOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'stop-following' );
- define ( 'ACTIVITY_POST', NAMESPACE_ACTIVITY_SCHEMA . 'post' );
- define ( 'ACTIVITY_UPDATE', NAMESPACE_ACTIVITY_SCHEMA . 'update' );
- define ( 'ACTIVITY_TAG', NAMESPACE_ACTIVITY_SCHEMA . 'tag' );
-
- 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_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'photo' );
- define ( 'ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo' );
- define ( 'ACTIVITY_OBJ_ALBUM', NAMESPACE_ACTIVITY_SCHEMA . 'photo-album' );
-
- /**
- * item weight for query ordering
- */
-
- define ( 'GRAVITY_PARENT', 0);
- define ( 'GRAVITY_LIKE', 3);
- define ( 'GRAVITY_COMMENT', 6);
-
- /**
- *
- * 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
- *
- */
-
- 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);
- }
-
- /*
- * translation system
- */
- require_once("include/pgettext.php");
-
-
- /**
- *
- * class: App
- *
- * Our main application structure for the life of this page
- * Primarily deals with the URL that got us here
- * and tries to make some sense of it, and
- * stores our page contents and config storage
- * and anything else that might need to be passed around
- * before we spit the page out.
- *
- */
-
- if(! class_exists('App')) {
- class App {
-
- public $module_loaded = false;
- public $query_string;
- public $config;
- public $page;
- public $profile;
- public $user;
- public $cid;
- public $contact;
- public $page_contact;
- public $content;
- public $data;
- public $error = false;
- public $cmd;
- public $argv;
- public $argc;
- public $module;
- public $pager;
- public $strings;
- public $path;
- public $hooks;
- public $timezone;
- public $interactive = true;
- public $plugins;
- public $apps;
- public $identities;
-
- private $scheme;
- private $hostname;
- private $baseurl;
- private $db;
-
- private $curl_code;
- private $curl_headers;
-
- function __construct() {
-
- $this->config = array();
- $this->page = array();
- $this->pager= array();
-
- $this->query_string = '';
-
- $this->scheme = ((isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'])) ? 'https' : 'http' );
-
- if(x($_SERVER,'SERVER_NAME')) {
- $this->hostname = $_SERVER['SERVER_NAME'];
-
- /**
- * Figure out if we are running at the top of a domain
- * or in a sub-directory and adjust accordingly
- */
-
- $path = trim(dirname($_SERVER['SCRIPT_NAME']),'/\\');
- if(isset($path) && strlen($path) && ($path != $this->path))
- $this->path = $path;
- }
-
- set_include_path("include/$this->hostname" . PATH_SEPARATOR . 'include' . PATH_SEPARATOR . '.' );
-
- if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=")
- $this->query_string = substr($_SERVER['QUERY_STRING'],2);
- if(x($_GET,'q'))
- $this->cmd = trim($_GET['q'],'/\\');
-
-
-
- /**
- *
- * Break the URL path into C style argc/argv style arguments for our
- * modules. Given "http://example.com/module/arg1/arg2", $this->argc
- * will be 3 (integer) and $this->argv will contain:
- * [0] => 'module'
- * [1] => 'arg1'
- * [2] => 'arg2'
- *
- *
- * There will always be one argument. If provided a naked domain
- * URL, $this->argv[0] is set to "home".
- *
- */
-
- $this->argv = explode('/',$this->cmd);
- $this->argc = count($this->argv);
- if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
- $this->module = str_replace(".", "_", $this->argv[0]);
- }
- else {
- $this->module = 'home';
- }
-
- /**
- * Special handling for the webfinger/lrdd host XRD file
- * Just spit out the contents and exit.
- */
-
- if($this->cmd === '.well-known/host-meta') {
- require_once('include/hostxrd.php');
- hostxrd($this->get_baseurl());
- // NOTREACHED
- }
-
- /**
- * See if there is any page number information, and initialise
- * pagination
- */
-
- $this->pager['page'] = ((x($_GET,'page')) ? $_GET['page'] : 1);
- $this->pager['itemspage'] = 50;
- $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
- $this->pager['total'] = 0;
- }
-
- function get_baseurl($ssl = false) {
-
- $scheme = $this->scheme;
-
- if(x($this->config,'ssl_policy')) {
- if(($ssl) || ($this->config['ssl_policy'] == SSL_POLICY_FULL))
- $scheme = 'https';
- if(($this->config['ssl_policy'] == SSL_POLICY_SELFSIGN) && (local_user() || x($_POST,'auth-params')))
- $scheme = 'https';
- }
-
- $this->baseurl = $scheme . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
- return $this->baseurl;
- }
-
- function set_baseurl($url) {
- $parsed = @parse_url($url);
-
- $this->baseurl = $url;
-
- if($parsed) {
- $this->scheme = $parsed['scheme'];
-
- $this->hostname = $parsed['host'];
- if(x($parsed,'port'))
- $this->hostname .= ':' . $parsed['port'];
- if(x($parsed,'path'))
- $this->path = trim($parsed['path'],'\\/');
- }
-
- }
-
- function get_hostname() {
- return $this->hostname;
- }
-
- function set_hostname($h) {
- $this->hostname = $h;
- }
-
- function set_path($p) {
- $this->path = trim(trim($p),'/');
- }
-
- function get_path() {
- return $this->path;
- }
-
- function set_pager_total($n) {
- $this->pager['total'] = intval($n);
- }
-
- function set_pager_itemspage($n) {
- $this->pager['itemspage'] = intval($n);
- $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
-
- }
-
- function init_pagehead() {
- $this->page['title'] = $this->config['sitename'];
- $tpl = load_view_file('view/head.tpl');
- $this->page['htmlhead'] = replace_macros($tpl,array(
- '$baseurl' => $this->get_baseurl() . '/',
- '$generator' => 'Friendika' . ' ' . FRIENDIKA_VERSION,
- '$delitem' => t('Delete this item?'),
- '$comment' => t('Comment')
- ));
- }
-
- function set_curl_code($code) {
- $this->curl_code = $code;
- }
-
- function get_curl_code() {
- return $this->curl_code;
- }
-
- function set_curl_headers($headers) {
- $this->curl_headers = $headers;
- }
-
- function get_curl_headers() {
- return $this->curl_headers;
- }
-
-
- }}
-
- // retrieve the App structure
- // useful in functions which require it but don't get it passed to them
-
- if(! function_exists('get_app')) {
- function get_app() {
- global $a;
- return $a;
- }};
-
-
- // Multi-purpose function to check variable state.
- // Usage: x($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;
-
- if(! function_exists('x')) {
- 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;
- }
- }}
-
- // called from db initialisation if db is dead.
-
- if(! function_exists('system_unavailable')) {
- function system_unavailable() {
- include('system_unavailable.php');
- system_down();
- killme();
- }}
-
- // Primarily involved with database upgrade, but also sets the
- // base url for use in cmdline programs which don't have
- // $_SERVER variables, and synchronising the state of installed plugins.
-
-
- if(! function_exists('check_config')) {
- function check_config(&$a) {
-
-
- load_config('system');
-
- $build = get_config('system','build');
- if(! x($build))
- $build = set_config('system','build',DB_UPDATE_VERSION);
-
- $url = get_config('system','url');
-
- // if the url isn't set or the stored url is radically different
- // than the currently visited url, store the current value accordingly.
- // "Radically different" ignores common variations such as http vs https
- // and www.example.com vs example.com.
-
- if((! x($url)) || (! link_compare($url,$a->get_baseurl())))
- $url = set_config('system','url',$a->get_baseurl());
-
- if($build != DB_UPDATE_VERSION) {
- $stored = intval($build);
- $current = intval(DB_UPDATE_VERSION);
- if(($stored < $current) && file_exists('update.php')) {
- // We're reporting a different version than what is currently installed.
- // Run any existing update scripts to bring the database up to current.
-
- require_once('update.php');
- for($x = $stored; $x < $current; $x ++) {
- if(function_exists('update_' . $x)) {
- $func = 'update_' . $x;
- $func($a);
- }
- }
- set_config('system','build', DB_UPDATE_VERSION);
- }
- }
-
- /**
- *
- * 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.
- *
- */
-
- $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
- if(count($r))
- $installed = $r;
- else
- $installed = array();
-
- $plugins = get_config('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)) {
- logger("Addons: uninstalling " . $i['name']);
- q("DELETE FROM `addon` WHERE `id` = %d LIMIT 1",
- intval($i['id'])
- );
-
- @include_once('addon/' . $i['name'] . '/' . $i['name'] . '.php');
- if(function_exists($i['name'] . '_uninstall')) {
- $func = $i['name'] . '_uninstall';
- $func();
- }
- }
- else
- $installed_arr[] = $i['name'];
- }
- }
-
- if(count($plugins_arr)) {
- foreach($plugins_arr as $p) {
- if(! in_array($p,$installed_arr)) {
- logger("Addons: installing " . $p);
- $t = filemtime('addon/' . $p . '/' . $p . '.php');
- @include_once('addon/' . $p . '/' . $p . '.php');
- if(function_exists($p . '_install')) {
- $func = $p . '_install';
- $func();
- $r = q("INSERT INTO `addon` (`name`, `installed`, `timestamp`) VALUES ( '%s', 1, %d ) ",
- dbesc($p),
- intval($t)
- );
- }
- }
- }
- }
-
-
- load_hooks();
-
- return;
- }}
-
- // reload all updated plugins
-
- if(! function_exists('reload_plugins')) {
- function reload_plugins() {
- $plugins = get_config('system','addon');
- if(strlen($plugins)) {
-
- $r = q("SELECT * FROM `addon` WHERE `installed` = 1");
- if(count($r))
- $installed = $r;
- else
- $installed = array();
-
- $parr = explode(',',$plugins);
- if(count($parr)) {
- foreach($parr as $pl) {
- $pl = trim($pl);
-
- $t = filemtime('addon/' . $pl . '/' . $pl . '.php');
- foreach($installed as $i) {
- if(($i['name'] == $pl) && ($i['timestamp'] != $t)) {
- logger('Reloading plugin: ' . $i['name']);
- @include_once('addon/' . $pl . '/' . $pl . '.php');
-
- if(function_exists($pl . '_uninstall')) {
- $func = $pl . '_uninstall';
- $func();
- }
- if(function_exists($pl . '_install')) {
- $func = $pl . '_install';
- $func();
- }
- q("UPDATE `addon` SET `timestamp` = %d WHERE `id` = %d LIMIT 1",
- intval($t),
- intval($i['id'])
- );
- }
- }
- }
- }
- }
- }}
-
-
-
- // This is our template processor.
- // $s is the string requiring macro substitution.
- // $r is an array of key value pairs (search => replace)
- // returns substituted string.
- // WARNING: this is pretty basic, and doesn't properly handle search strings that are substrings of each other.
- // For instance if 'test' => "foo" and 'testing' => "bar", testing could become either bar or fooing,
- // depending on the order in which they were declared in the array.
-
- require_once("include/template_processor.php");
-
- if(! function_exists('replace_macros')) {
- function replace_macros($s,$r) {
- global $t;
-
- return $t->replace($s,$r);
-
- }}
-
-
- // curl wrapper. If binary flag is true, return binary
- // results.
-
- if(! function_exists('fetch_url')) {
- function fetch_url($url,$binary = false, &$redirects = 0) {
-
- $a = get_app();
-
- $ch = curl_init($url);
- if(($redirects > 8) || (! $ch))
- return false;
-
- curl_setopt($ch, CURLOPT_HEADER, true);
- curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
-
-
- $curl_time = intval(get_config('system','curl_timeout'));
- curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
-
- // by default we will allow self-signed certs
- // but you can override this
-
- $check_cert = get_config('system','verifyssl');
- curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
-
- $prx = get_config('system','proxy');
- if(strlen($prx)) {
- curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
- curl_setopt($ch, CURLOPT_PROXY, $prx);
- $prxusr = get_config('system','proxyuser');
- if(strlen($prxusr))
- curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
- }
- if($binary)
- curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
-
- $a->set_curl_code(0);
-
- // don't let curl abort the entire application
- // if it throws any errors.
-
- $s = @curl_exec($ch);
-
- $http_code = intval(curl_getinfo($ch, CURLINFO_HTTP_CODE));
- $header = substr($s,0,strpos($s,"\r\n\r\n"));
- if(stristr($header,'100') && (strlen($header) < 30)) {
- // 100 Continue has two headers, get the real one
- $s = substr($s,strlen($header)+4);
- $header = substr($s,0,strpos($s,"\r\n\r\n"));
- }
- if($http_code == 301 || $http_code == 302 || $http_code == 303) {
- $matches = array();
- preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
- $url = trim(array_pop($matches));
- $url_parsed = @parse_url($url);
- if (isset($url_parsed)) {
- $redirects++;
- return fetch_url($url,$binary,$redirects);
- }
- }
- $a->set_curl_code($http_code);
-
- $body = substr($s,strlen($header)+4);
-
- /* one more try to make sure there are no more headers */
-
- if(strpos($body,'HTTP/') === 0) {
- $header = substr($body,0,strpos($body,"\r\n\r\n"));
- $body = substr($body,strlen($header)+4);
- }
-
- $a->set_curl_headers($header);
-
- curl_close($ch);
- return($body);
- }}
-
- // post request to $url. $params is an array of post variables.
-
- if(! function_exists('post_url')) {
- function post_url($url,$params, $headers = null, &$redirects = 0) {
- $a = get_app();
- $ch = curl_init($url);
- if(($redirects > 8) || (! $ch))
- return false;
-
- curl_setopt($ch, CURLOPT_HEADER, true);
- curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
- curl_setopt($ch, CURLOPT_POST,1);
- curl_setopt($ch, CURLOPT_POSTFIELDS,$params);
-
- $curl_time = intval(get_config('system','curl_timeout'));
- curl_setopt($ch, CURLOPT_TIMEOUT, (($curl_time !== false) ? $curl_time : 60));
-
- if(is_array($headers))
- curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
-
- $check_cert = get_config('system','verifyssl');
- curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
- $prx = get_config('system','proxy');
- if(strlen($prx)) {
- curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
- curl_setopt($ch, CURLOPT_PROXY, $prx);
- $prxusr = get_config('system','proxyuser');
- if(strlen($prxusr))
- curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
- }
-
- $a->set_curl_code(0);
-
- // don't let curl abort the entire application
- // if it throws any errors.
-
- $s = @curl_exec($ch);
-
- $http_code = intval(curl_getinfo($ch, CURLINFO_HTTP_CODE));
- $header = substr($s,0,strpos($s,"\r\n\r\n"));
- if(stristr($header,'100') && (strlen($header) < 30)) {
- // 100 Continue has two headers, get the real one
- $s = substr($s,strlen($header)+4);
- $header = substr($s,0,strpos($s,"\r\n\r\n"));
- }
- if($http_code == 301 || $http_code == 302 || $http_code == 303) {
- $matches = array();
- preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
- $url = trim(array_pop($matches));
- $url_parsed = @parse_url($url);
- if (isset($url_parsed)) {
- $redirects++;
- return post_url($url,$binary,$headers,$redirects);
- }
- }
- $a->set_curl_code($http_code);
- $body = substr($s,strlen($header)+4);
-
- /* one more try to make sure there are no more headers */
-
- if(strpos($body,'HTTP/') === 0) {
- $header = substr($body,0,strpos($body,"\r\n\r\n"));
- $body = substr($body,strlen($header)+4);
- }
-
- $a->set_curl_headers($header);
-
- curl_close($ch);
- return($body);
- }}
-
- // random hash, 64 chars
-
- if(! function_exists('random_string')) {
- function random_string() {
- return(hash('sha256',uniqid(rand(),true)));
- }}
-
- /**
- * This is our primary input filter.
- *
- * The high bit hack only involved some old IE browser, forget which (IE5/Mac?)
- * that had an XSS attack vector due to stripping the high-bit on an 8-bit character
- * after cleansing, and angle chars with the high bit set could get through as markup.
- *
- * This is now disabled because it was interfering with some legitimate unicode sequences
- * and hopefully there aren't a lot of those browsers left.
- *
- * Use this on any text input where angle chars are not valid or permitted
- * They will be replaced with safer brackets. This may be filtered further
- * if these are not allowed either.
- *
- */
-
- if(! function_exists('notags')) {
- function notags($string) {
-
- return(str_replace(array("<",">"), array('[',']'), $string));
-
- // High-bit filter no longer used
- // return(str_replace(array("<",">","\xBA","\xBC","\xBE"), array('[',']','','',''), $string));
- }}
-
- // use this on "body" or "content" input where angle chars shouldn't be removed,
- // and allow them to be safely displayed.
-
- if(! function_exists('escape_tags')) {
- function escape_tags($string) {
-
- return(htmlspecialchars($string));
- }}
-
- // wrapper for adding a login box. If $register == true provide a registration
- // link. This will most always depend on the value of $a->config['register_policy'].
- // returns the complete html for inserting into the page
-
- if(! function_exists('login')) {
- function login($register = false) {
- $o = "";
- $register_tpl = (($register) ? load_view_file("view/register-link.tpl") : "");
-
- $register_html = replace_macros($register_tpl,array(
- '$title' => t('Create a New Account'),
- '$desc' => t('Register')
- ));
-
- $noid = get_config('system','no_openid');
- if($noid) {
- $classname = 'no-openid';
- $namelabel = t('Nickname or Email address: ');
- $passlabel = t('Password: ');
- $login = t('Login');
- }
- else {
- $classname = 'openid';
- $namelabel = t('Nickname/Email/OpenID: ');
- $passlabel = t("Password \x28if not OpenID\x29: ");
- $login = t('Login');
- }
- $lostpass = t('Forgot your password?');
- $lostlink = t('Password Reset');
-
- if(local_user()) {
- $tpl = load_view_file("view/logout.tpl");
- }
- else {
- $tpl = load_view_file("view/login.tpl");
-
- }
-
- $o = replace_macros($tpl,array(
- '$logout' => t('Logout'),
- '$register_html' => $register_html,
- '$classname' => $classname,
- '$namelabel' => $namelabel,
- '$passlabel' => $passlabel,
- '$login' => $login,
- '$lostpass' => $lostpass,
- '$lostlink' => $lostlink
- ));
-
- return $o;
- }}
-
- // generate a string that's random, but usually pronounceable.
- // used to generate initial passwords
-
- if(! function_exists('autoname')) {
- function autoname($len) {
-
- $vowels = array('a','a','ai','au','e','e','e','ee','ea','i','ie','o','ou','u');
- if(mt_rand(0,5) == 4)
- $vowels[] = 'y';
-
- $cons = array(
- 'b','bl','br',
- 'c','ch','cl','cr',
- 'd','dr',
- 'f','fl','fr',
- 'g','gh','gl','gr',
- 'h',
- 'j',
- 'k','kh','kl','kr',
- 'l',
- 'm',
- 'n',
- 'p','ph','pl','pr',
- 'qu',
- 'r','rh',
- 's','sc','sh','sm','sp','st',
- 't','th','tr',
- 'v',
- 'w','wh',
- 'x',
- 'z','zh'
- );
-
- $midcons = array('ck','ct','gn','ld','lf','lm','lt','mb','mm', 'mn','mp',
- 'nd','ng','nk','nt','rn','rp','rt');
-
- $noend = array('bl', 'br', 'cl','cr','dr','fl','fr','gl','gr',
- 'kh', 'kl','kr','mn','pl','pr','rh','tr','qu','wh');
-
- $start = mt_rand(0,2);
- if($start == 0)
- $table = $vowels;
- else
- $table = $cons;
-
- $word = '';
-
- for ($x = 0; $x < $len; $x ++) {
- $r = mt_rand(0,count($table) - 1);
- $word .= $table[$r];
-
- if($table == $vowels)
- $table = array_merge($cons,$midcons);
- else
- $table = $vowels;
-
- }
-
- $word = substr($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 = '') {
-
- $xml_message = ((strlen($message)) ? "\t<message>" . xmlify($message) . "</message>\r\n" : '');
-
- if($st)
- logger('xml_status returning non_zero: ' . $st . " message=" . $message);
-
- header( "Content-type: text/xml" );
- echo '<?xml version="1.0" encoding="UTF-8"?>'."\r\n";
- echo "<result>\r\n\t<status>$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 .= "\n";
- 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) {
- if(! ctype_xdigit($s)) {
- logger('hex2bin: illegal input: ' . print_r(debug_backtrace(), true));
- return($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 = '';
- $stripped = preg_replace('/(&page=[0-9]*)/','',$a->query_string);
- $stripped = str_replace('q=','',$stripped);
- $stripped = trim($stripped,'/');
- $pagenum = $a->pager['page'];
- $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 $a;
-
- if(get_config($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)
- );
-
- $a->config[$family][$key] = $value;
-
- if($ret)
- return $value;
- return $ret;
- }}
-
-
- if(! function_exists('load_pconfig')) {
- function load_pconfig($uid,$family) {
- global $a;
- $r = q("SELECT * FROM `pconfig` WHERE `cat` = '%s' AND `uid` = %d",
- dbesc($family),
- intval($uid)
- );
- if(count($r)) {
- foreach($r as $rr) {
- $k = $rr['k'];
- $a->config[$uid][$family][$k] = $rr['v'];
- }
- }
- }}
-
-
-
- if(! function_exists('get_pconfig')) {
- function get_pconfig($uid,$family, $key, $instore = false) {
-
- global $a;
-
- if(! $instore) {
- if(isset($a->config[$uid][$family][$key])) {
- if($a->config[$uid][$family][$key] === '!<unset>!') {
- return false;
- }
- return $a->config[$uid][$family][$key];
- }
- }
-
- $ret = q("SELECT `v` FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
- intval($uid),
- dbesc($family),
- dbesc($key)
- );
-
- if(count($ret)) {
- $a->config[$uid][$family][$key] = $ret[0]['v'];
- return $ret[0]['v'];
- }
- else {
- $a->config[$uid][$family][$key] = '!<unset>!';
- }
- return false;
- }}
-
- if(! function_exists('del_config')) {
- function del_config($family,$key) {
-
- global $a;
- if(x($a->config[$family],$key))
- unset($a->config[$family][$key]);
- $ret = q("DELETE FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
- dbesc($cat),
- dbesc($key)
- );
- return $ret;
- }}
-
-
-
- // Same as above functions except these are for personal config storage and take an
- // additional $uid argument.
-
- if(! function_exists('set_pconfig')) {
- function set_pconfig($uid,$family,$key,$value) {
-
- global $a;
-
- if(get_pconfig($uid,$family,$key,true) === false) {
- $ret = q("INSERT INTO `pconfig` ( `uid`, `cat`, `k`, `v` ) VALUES ( %d, '%s', '%s', '%s' ) ",
- intval($uid),
- dbesc($family),
- dbesc($key),
- dbesc($value)
- );
- if($ret)
- return $value;
- return $ret;
- }
- $ret = q("UPDATE `pconfig` SET `v` = '%s' WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
- dbesc($value),
- intval($uid),
- dbesc($family),
- dbesc($key)
- );
-
- $a->config[$uid][$family][$key] = $value;
-
- if($ret)
- return $value;
- return $ret;
- }}
-
- if(! function_exists('del_pconfig')) {
- function del_pconfig($uid,$family,$key) {
-
- global $a;
- if(x($a->config[$uid][$family],$key))
- unset($a->config[$uid][$family][$key]);
- $ret = q("DELETE FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
- intval($uid),
- dbesc($family),
- dbesc($key)
- );
- 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);
- logger('webfinger_dfrn: ' . $s . ':' . print_r($links,true), LOGGER_DATA);
- 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);
- logger('webfinger: lrdd template: ' . $tpl);
- if(strlen($tpl)) {
- $pxrd = str_replace('{uri}', urlencode('acct:' . $s), $tpl);
- logger('webfinger: pxrd: ' . $pxrd);
- $links = fetch_xrd_links($pxrd);
- if(! count($links)) {
- // try with double slashes
- $pxrd = str_replace('{uri}', urlencode('acct://' . $s), $tpl);
- logger('webfinger: pxrd: ' . $pxrd);
- $links = fetch_xrd_links($pxrd);
- }
- return $links;
- }
- }
- return array();
- }}
-
- if(! function_exists('lrdd')) {
- function lrdd($uri) {
-
- $a = get_app();
-
- // default priority is host priority, host-meta first
-
- $priority = 'host';
-
- // All we have is an email address. Resource-priority is irrelevant
- // because our URI isn't directly resolvable.
-
- if(strstr($uri,'@')) {
- return(webfinger($uri));
- }
-
- // get the host meta file
-
- $host = @parse_url($uri);
-
- if($host) {
- $url = ((x($host,'scheme')) ? $host['scheme'] : 'http') . '://';
- $url .= $host['host'] . '/.well-known/host-meta' ;
- }
- else
- return array();
-
- logger('lrdd: constructed url: ' . $url);
-
- $xml = fetch_url($url);
- $headers = $a->get_curl_headers();
-
- if (! $xml)
- return array();
-
- logger('lrdd: host_meta: ' . $xml, LOGGER_DATA);
-
- $h = parse_xml_string($xml);
-
- $arr = convert_xml_element_to_array($h);
-
- if(isset($arr['xrd']['property'])) {
- $property = $arr['crd']['property'];
- if(! isset($property[0]))
- $properties = array($property);
- else
- $properties = $property;
- foreach($properties as $prop)
- if((string) $prop['@attributes'] === 'http://lrdd.net/priority/resource')
- $priority = 'resource';
- }
-
- // save the links in case we need them
-
- $links = array();
-
- if(isset($arr['xrd']['link'])) {
- $link = $arr['xrd']['link'];
- if(! isset($link[0]))
- $links = array($link);
- else
- $links = $link;
- }
-
- // do we have a template or href?
-
- if(count($links)) {
- foreach($links as $link) {
- if($link['@attributes']['rel'] && attribute_contains($link['@attributes']['rel'],'lrdd')) {
- if(x($link['@attributes'],'template'))
- $tpl = $link['@attributes']['template'];
- elseif(x($link['@attributes'],'href'))
- $href = $link['@attributes']['href'];
- }
- }
- }
-
- if((! isset($tpl)) || (! strpos($tpl,'{uri}')))
- $tpl = '';
-
- if($priority === 'host') {
- if(strlen($tpl))
- $pxrd = str_replace('{uri}', urlencode($uri), $tpl);
- elseif(isset($href))
- $pxrd = $href;
- if(isset($pxrd)) {
- logger('lrdd: (host priority) pxrd: ' . $pxrd);
- $links = fetch_xrd_links($pxrd);
- return $links;
- }
-
- $lines = explode("\n",$headers);
- if(count($lines)) {
- foreach($lines as $line) {
- if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
- return(fetch_xrd_links($matches[1]));
- break;
- }
- }
- }
- }
-
-
- // priority 'resource'
-
-
- $html = fetch_url($uri);
- $headers = $a->get_curl_headers();
- logger('lrdd: headers=' . $headers, LOGGER_DEBUG);
-
- // don't try and parse raw xml as html
- if(! strstr($html,'<?xml')) {
- require_once('library/HTML5/Parser.php');
- $dom = @HTML5_Parser::parse($html);
-
- if($dom) {
- $items = $dom->getElementsByTagName('link');
- foreach($items as $item) {
- $x = $item->getAttribute('rel');
- if($x == "lrdd") {
- $pagelink = $item->getAttribute('href');
- break;
- }
- }
- }
- }
-
- if(isset($pagelink))
- return(fetch_xrd_links($pagelink));
-
- // next look in HTTP headers
-
- $lines = explode("\n",$headers);
- if(count($lines)) {
- foreach($lines as $line) {
- // TODO alter the following regex to support multiple relations (space separated)
- if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
- $pagelink = $matches[1];
- break;
- }
- // don't try and run feeds through the html5 parser
- if(stristr($line,'content-type:') && ((stristr($line,'application/atom+xml')) || (stristr($line,'application/rss+xml'))))
- return array();
- if(stristr($html,'<rss') || stristr($html,'<feed'))
- return array();
- }
- }
-
- if(isset($pagelink))
- return(fetch_xrd_links($pagelink));
-
- // If we haven't found any links, return the host xrd links (which we have already fetched)
-
- if(isset($links))
- 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 = '';
-
- $url1 = 'https://' . $host . '/.well-known/host-meta' ;
- $url2 = 'http://' . $host . '/.well-known/host-meta' ;
- $links = fetch_xrd_links($url1);
- logger('template (https): ' . print_r($links,true));
- if(! count($links)) {
- $links = fetch_xrd_links($url2);
- logger('template (http): ' . print_r($links,true));
- }
- if(count($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();
-
- logger('fetch_xrd_links: ' . $xml, LOGGER_DATA);
- $h = parse_xml_string($xml);
- $arr = convert_xml_element_to_array($h);
-
- $links = array();
-
- if(isset($arr['xrd']['link'])) {
- $link = $arr['xrd']['link'];
- if(! isset($link[0]))
- $links = array($link);
- else
- $links = $link;
- }
- if(isset($arr['xrd']['alias'])) {
- $alias = $arr['xrd']['alias'];
- if(! isset($alias[0]))
- $aliases = array($alias);
- else
- $aliases = $alias;
- foreach($aliases as $alias) {
- $links[]['@attributes'] = array('rel' => 'alias' , 'href' => $alias);
- }
- }
-
- logger('fetch_xrd_links: ' . print_r($links,true), LOGGER_DATA);
-
- return $links;
-
- }}
-
- // Convert an ACL array to a storable string
-
- if(! function_exists('perms2str')) {
- function perms2str($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(($h) && (dns_get_record($h['host'], DNS_A + DNS_CNAME + DNS_PTR))) {
- return true;
- }
- return false;
- }}
-
- // checks that email is an actual resolvable internet address
-
- if(! function_exists('validate_email')) {
- function validate_email($addr) {
-
- if(! strpos($addr,'@'))
- return false;
- $h = substr($addr,strpos($addr,'@') + 1);
-
- if(($h) && (dns_get_record($h, DNS_A + DNS_CNAME + DNS_PTR + DNS_MX))) {
- return true;
- }
- return false;
- }}
-
- // 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,$domain)) || ($pat == $domain)) {
- $found = true;
- break;
- }
- }
- }
- return $found;
- }}
-
-
-
- // wrapper to load a view template, checking for alternate
- // languages before falling back to the default
-
- if(! function_exists('load_view_file')) {
- function load_view_file($s) {
- global $lang, $a;
- if(! isset($lang))
- $lang = 'en';
- $b = basename($s);
- $d = dirname($s);
- if(file_exists("$d/$lang/$b"))
- return file_get_contents("$d/$lang/$b");
-
- $theme = current_theme();
-
- if(file_exists("$d/theme/$theme/$b"))
- return file_get_contents("$d/theme/$theme/$b");
-
- return file_get_contents($s);
- }}
-
- // for html,xml parsing - let's say you've got
- // an attribute foobar="class1 class2 class3"
- // and you want to find out if it contains 'class3'.
- // you can't use a normal sub string search because you
- // might match 'notclass3' and a regex to do the job is
- // possible but a bit complicated.
- // pass the attribute string as $attr and the attribute you
- // are looking for as $s - returns true if found, otherwise false
-
- if(! function_exists('attribute_contains')) {
- function attribute_contains($attr,$s) {
- $a = explode(' ', $attr);
- if(count($a) && in_array($s,$a))
- return true;
- return false;
- }}
-
- if(! function_exists('logger')) {
- function logger($msg,$level = 0) {
- $debugging = get_config('system','debugging');
- $loglevel = intval(get_config('system','loglevel'));
- $logfile = get_config('system','logfile');
-
- if((! $debugging) || (! $logfile) || ($level > $loglevel))
- return;
-
- @file_put_contents($logfile, datetime_convert() . ':' . session_id() . ' ' . $msg . "\n", FILE_APPEND);
- return;
- }}
-
-
- if(! function_exists('activity_match')) {
- function activity_match($haystack,$needle) {
- if(($haystack === $needle) || ((basename($needle) === $haystack) && strstr($needle,NAMESPACE_ACTIVITY_SCHEMA)))
- return true;
- return false;
- }}
-
-
- // Pull out all #hashtags and @person tags from $s;
- // We also get @person@domain.com - which would make
- // the regex quite complicated as tags can also
- // end a sentence. So we'll run through our results
- // and strip the period from any tags which end with one.
- // Returns array of tags found, or empty array.
-
-
- if(! function_exists('get_tags')) {
- function get_tags($s) {
- $ret = array();
-
- // ignore anything in a code block
-
- $s = preg_replace('/\[code\](.*?)\[\/code\]/sm','',$s);
-
- if(preg_match_all('/([@#][^ \x0D\x0A,:?]+)([ \x0D\x0A,:?]|$)/',$s,$match)) {
- foreach($match[1] as $match) {
- if(strstr($match,"]")) {
- // we might be inside a bbcode color tag - leave it alone
- continue;
- }
- if(substr($match,-1,1) === '.')
- $ret[] = substr($match,0,-1);
- else
- $ret[] = $match;
- }
- }
-
- return $ret;
- }}
-
-
- // quick and dirty quoted_printable encoding
-
- if(! function_exists('qp')) {
- function qp($s) {
- return str_replace ("%","=",rawurlencode($s));
- }}
-
-
-
- if(! function_exists('get_mentions')) {
- function get_mentions($item) {
- $o = '';
- if(! strlen($item['tag']))
- return $o;
-
- $arr = explode(',',$item['tag']);
- foreach($arr as $x) {
- $matches = null;
- if(preg_match('/@\[url=([^\]]*)\]/',$x,$matches)) {
- $o .= "\t\t" . '<link rel="mentioned" href="' . $matches[1] . '" />' . "\r\n";
- $o .= "\t\t" . '<link rel="ostatus:attention" href="' . $matches[1] . '" />' . "\r\n";
- }
- }
- return $o;
- }}
-
- if(! function_exists('contact_block')) {
- function contact_block() {
- $o = '';
- $a = get_app();
-
- $shown = get_pconfig($a->profile['uid'],'system','display_friend_count');
- if(! $shown)
- $shown = 24;
-
- if((! is_array($a->profile)) || ($a->profile['hide-friends']))
- return $o;
- $r = q("SELECT COUNT(*) AS `total` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0",
- intval($a->profile['uid'])
- );
- if(count($r)) {
- $total = intval($r[0]['total']);
- }
- if(! $total) {
- $o .= '<h4 class="contact-h4">' . t('No contacts') . '</h4>';
- return $o;
- }
- $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0 ORDER BY RAND() LIMIT %d",
- intval($a->profile['uid']),
- intval($shown)
- );
- if(count($r)) {
- $o .= '<h4 class="contact-h4">' . sprintf( tt('%d Contact','%d Contacts', $total),$total) . '</h4><div id="contact-block">';
- foreach($r as $rr) {
- $o .= micropro($rr,true,'mpfriend');
- }
- $o .= '</div><div id="contact-block-end"></div>';
- $o .= '<div id="viewcontacts"><a id="viewcontacts-link" href="viewcontacts/' . $a->profile['nickname'] . '">' . t('View Contacts') . '</a></div>';
-
- }
-
- $arr = array('contacts' => $r, 'output' => $o);
-
- call_hooks('contact_block_end', $arr);
- return $o;
-
- }}
-
- if(! function_exists('micropro')) {
- function micropro($contact, $redirect = false, $class = '') {
-
- if($class)
- $class = ' ' . $class;
-
- $url = $contact['url'];
- $sparkle = '';
-
- if($redirect) {
- $a = get_app();
- $redirect_url = $a->get_baseurl() . '/redir/' . $contact['id'];
- if(local_user() && ($contact['uid'] == local_user()) && ($contact['network'] === 'dfrn')) {
- $url = $redirect_url;
- $sparkle = ' sparkle';
- }
- }
- $click = ((x($contact,'click')) ? ' onclick="' . $contact['click'] . '" ' : '');
- if($click)
- $url = '';
- return '<div class="contact-block-div' . $class . '"><a class="contact-block-link' . $class . $sparkle
- . (($click) ? ' fakelink' : '') . '" '
- . (($url) ? ' href="' . $url . '"' : '') . $click . ' ><img class="contact-block-img' . $class . $sparkle . '" src="'
- . $contact['micro'] . '" title="' . $contact['name'] . ' [' . $contact['url'] . ']" alt="' . $contact['name']
- . '" /></a></div>' . "\r\n";
- }}
-
-
-
- if(! function_exists('search')) {
- function search($s) {
- $a = get_app();
- $o = '<div id="search-box">';
- $o .= '<form action="' . $a->get_baseurl() . '/search' . '" method="get" >';
- $o .= '<input type="text" name="search" id="search-text" value="' . $s .'" />';
- $o .= '<input type="submit" name="submit" id="search-submit" value="' . t('Search') . '" />';
- $o .= '</form></div>';
- return $o;
- }}
-
- if(! function_exists('valid_email')) {
- function valid_email($x){
- if(preg_match('/^[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)+$/',$x))
- return true;
- return false;
- }}
-
-
- if(! function_exists('gravatar_img')) {
- function gravatar_img($email) {
- $size = 175;
- $opt = 'identicon'; // psuedo-random geometric pattern if not found
- $rating = 'pg';
- $hash = md5(trim(strtolower($email)));
-
- $url = 'http://www.gravatar.com/avatar/' . $hash . '.jpg'
- . '?s=' . $size . '&d=' . $opt . '&r=' . $rating;
-
- logger('gravatar: ' . $email . ' ' . $url);
- return $url;
- }}
-
- if(! function_exists('aes_decrypt')) {
- function aes_decrypt($val,$ky)
- {
- $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
- for($a=0;$a<strlen($ky);$a++)
- $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
- $mode = MCRYPT_MODE_ECB;
- $enc = MCRYPT_RIJNDAEL_128;
- $dec = @mcrypt_decrypt($enc, $key, $val, $mode, @mcrypt_create_iv( @mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM ) );
- return rtrim($dec,(( ord(substr($dec,strlen($dec)-1,1))>=0 and ord(substr($dec, strlen($dec)-1,1))<=16)? chr(ord( substr($dec,strlen($dec)-1,1))):null));
- }}
-
-
- if(! function_exists('aes_encrypt')) {
- function aes_encrypt($val,$ky)
- {
- $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
- for($a=0;$a<strlen($ky);$a++)
- $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
- $mode=MCRYPT_MODE_ECB;
- $enc=MCRYPT_RIJNDAEL_128;
- $val=str_pad($val, (16*(floor(strlen($val) / 16)+(strlen($val) % 16==0?2:1))), chr(16-(strlen($val) % 16)));
- return mcrypt_encrypt($enc, $key, $val, $mode, mcrypt_create_iv( mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM));
- }}
-
-
- /**
- *
- * Function: linkify
- *
- * Replace naked text hyperlink with HTML formatted hyperlink
- *
- */
-
- if(! function_exists('linkify')) {
- function linkify($s) {
- $s = preg_replace("/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\.\=\_\~\#\'\%\$\!\+]*)/", ' <a href="$1" target="external-link">$1</a>', $s);
- return($s);
- }}
-
-
- /**
- *
- * Function: smilies
- *
- * Description:
- * Replaces text emoticons with graphical images
- *
- * @Parameter: string $s
- *
- * Returns string
- */
-
- if(! function_exists('smilies')) {
- function smilies($s) {
- $a = get_app();
-
- return str_replace(
- array( '<3', '</3', '<\\3', ':-)', ';-)', ':-(', ':(', ':-P', ':-"', ':-x', ':-X', ':-D', '8-|', '8-O'),
- array(
- '<img src="' . $a->get_baseurl() . '/images/smiley-heart.gif" alt="<3" />',
- '<img src="' . $a->get_baseurl() . '/images/smiley-brokenheart.gif" alt="</3" />',
- '<img src="' . $a->get_baseurl() . '/images/smiley-brokenheart.gif" alt="<\\3" />',
- '<img src="' . $a->get_baseurl() . '/images/smiley-smile.gif" alt=":-)" />',
- '<img src="' . $a->get_baseurl() . '/images/smiley-wink.gif" alt=";-)" />',
- '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":-(" />',
- '<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":(" />',
- '<img src="' . $a->get_baseurl() . '/images/smiley-tongue-out.gif" alt=":-P" />',
- '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-\"" />',
- '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-x" />',
- '<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-X" />',
- '<img src="' . $a->get_baseurl() . '/images/smiley-laughing.gif" alt=":-D" />',
- '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-|" />',
- '<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-O" />'
- ), $s);
- }}
-
-
- /**
- *
- * Function : profile_load
- * @parameter App $a
- * @parameter string $nickname
- * @parameter int $profile
- *
- * Summary: Loads a profile into the page sidebar.
- * The function requires a writeable copy of the main App structure, and the nickname
- * of a registered local account.
- *
- * If the viewer is an authenticated remote viewer, the profile displayed is the
- * one that has been configured for his/her viewing in the Contact manager.
- * Passing a non-zero profile ID can also allow a preview of a selected profile
- * by the owner.
- *
- * Profile information is placed in the App structure for later retrieval.
- * Honours the owner's chosen theme for display.
- *
- */
-
- if(! function_exists('profile_load')) {
- function profile_load(&$a, $nickname, $profile = 0) {
- if(remote_user()) {
- $r = q("SELECT `profile-id` FROM `contact` WHERE `id` = %d LIMIT 1",
- intval($_SESSION['visitor_id']));
- if(count($r))
- $profile = $r[0]['profile-id'];
- }
-
- $r = null;
-
- if($profile) {
- $profile_int = intval($profile);
- $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
- LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
- WHERE `user`.`nickname` = '%s' AND `profile`.`id` = %d LIMIT 1",
- dbesc($nickname),
- intval($profile_int)
- );
- }
- if(! count($r)) {
- $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.* FROM `profile`
- LEFT JOIN `user` ON `profile`.`uid` = `user`.`uid`
- WHERE `user`.`nickname` = '%s' AND `profile`.`is-default` = 1 LIMIT 1",
- dbesc($nickname)
- );
- }
-
- if(($r === false) || (! count($r))) {
- notice( t('No profile') . EOL );
- $a->error = 404;
- return;
- }
-
- $a->profile = $r[0];
-
-
- $a->page['title'] = $a->profile['name'] . " @ " . $a->config['sitename'];
- $_SESSION['theme'] = $a->profile['theme'];
-
- if(! (x($a->page,'aside')))
- $a->page['aside'] = '';
-
- $a->page['aside'] .= profile_sidebar($a->profile);
- $a->page['aside'] .= contact_block();
-
- return;
- }}
-
-
- /**
- *
- * Function: profile_sidebar
- *
- * Formats a profile for display in the sidebar.
- * It is very difficult to templatise the HTML completely
- * because of all the conditional logic.
- *
- * @parameter: array $profile
- *
- * Returns HTML string stuitable for sidebar inclusion
- * Exceptions: Returns empty string if passed $profile is wrong type or not populated
- *
- */
-
-
- if(! function_exists('profile_sidebar')) {
- function profile_sidebar($profile) {
-
- $o = '';
- $location = '';
- $address = false;
-
- if((! is_array($profile)) && (! count($profile)))
- return $o;
-
- call_hooks('profile_sidebar_enter', $profile);
-
- $fullname = '<div class="fn">' . $profile['name'] . '</div>';
-
- $pdesc = '<div class="title">' . $profile['pdesc'] . '</div>';
-
- $tabs = '';
-
- $photo = '<div id="profile-photo-wrapper"><img class="photo" src="' . $profile['photo'] . '" alt="' . $profile['name'] . '" /></div>';
-
- // don't show connect link to yourself
-
- $connect = (($profile['uid'] != local_user()) ? '<li><a id="dfrn-request-link" href="dfrn_request/' . $profile['nickname'] . '">' . t('Connect') . '</a></li>' : '');
-
- // don't show connect link to authenticated visitors either
-
- if((remote_user()) && ($_SESSION['visitor_visiting'] == $profile['uid']))
- $connect = '';
-
- if((x($profile,'address') == 1)
- || (x($profile,'locality') == 1)
- || (x($profile,'region') == 1)
- || (x($profile,'postal-code') == 1)
- || (x($profile,'country-name') == 1))
- $address = true;
-
- if($address) {
- $location .= '<div class="location"><span class="location-label">' . t('Location:') . '</span> <div class="adr">';
- $location .= ((x($profile,'address') == 1) ? '<div class="street-address">' . $profile['address'] . '</div>' : '');
- $location .= (((x($profile,'locality') == 1) || (x($profile,'region') == 1) || (x($profile,'postal-code') == 1))
- ? '<span class="city-state-zip"><span class="locality">' . $profile['locality'] . '</span>'
- . ((x($profile['locality']) == 1) ? t(', ') : '')
- . '<span class="region">' . $profile['region'] . '</span>'
- . ' <span class="postal-code">' . $profile['postal-code'] . '</span></span>'
|