X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=boot.php;h=4deafe317c279c1a4a514e4d19ee34d2cc742b2e;hb=013d2604f886bc7cbd2c5263d3577e8cf40f9fcc;hp=75ea5346ea714ecd9dc4f5ac4171b2468acbdf14;hpb=4bcf38029656fa3ad2e1914f531491ef90320c23;p=friendica.git diff --git a/boot.php b/boot.php index 75ea5346ea..4deafe317c 100644 --- a/boot.php +++ b/boot.php @@ -2,18 +2,20 @@ set_time_limit(0); -define ( 'BUILD_ID' , 1000 ); +define ( 'BUILD_ID' , 1007 ); define ( 'EOL', "
\r\n"); +define ( 'ATOM_TIME', 'Y-m-d\TH:i:s\Z' ); define ( 'REGISTER_CLOSED', 0); define ( 'REGISTER_APPROVE', 1); define ( 'REGISTER_OPEN', 2); -define ( 'DIRECTION_ANY', 0); -define ( 'DIRECTION_IN', 1); -define ( 'DIRECTION_OUT', 2); -define ( 'DIRECTION_BOTH', 3); +// relationship types + +define ( 'REL_VIP', 1); +define ( 'REL_FAN', 2); +define ( 'REL_BUD', 3); define ( 'NOTIFY_INTRO', 0x0001 ); define ( 'NOTIFY_CONFIRM', 0x0002 ); @@ -21,9 +23,40 @@ define ( 'NOTIFY_WALL', 0x0004 ); define ( 'NOTIFY_COMMENT', 0x0008 ); define ( 'NOTIFY_MAIL', 0x0010 ); -define ( 'NAMESPACE_DFRN' , 'http://purl.org/macgirvin/dfrn/1.0' ); +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_SALMON_ME', 'http://salmon-protocol.org/ns/magic-env'); + +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_POST', NAMESPACE_ACTIVITY_SCHEMA . 'post' ); +define ( 'ACTIVITY_UPDATE', NAMESPACE_ACTIVITY_SCHEMA . 'update' ); + +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' ); + +define ( 'GRAVITY_PARENT', 0); +define ( 'GRAVITY_LIKE', 3); +define ( 'GRAVITY_COMMENT', 6); +// 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 { @@ -78,7 +111,7 @@ class App { $this->module = 'home'; } - if($this->cmd == '.well-known/host-meta') + if($this->cmd === '.well-known/host-meta') require_once('include/hostxrd.php'); $this->pager['page'] = ((x($_GET,'page')) ? $_GET['page'] : 1); @@ -129,13 +162,29 @@ class App { } function init_pagehead() { - if(file_exists("view/head.tpl")) - $s = file_get_contents("view/head.tpl"); - $this->page['htmlhead'] = replace_macros($s,array('$baseurl' => $this->get_baseurl())); + $tpl = load_view_file("view/head.tpl"); + $this->page['htmlhead'] = replace_macros($tpl,array( + '$baseurl' => $this->get_baseurl() + )); } }} +// 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) { @@ -158,16 +207,23 @@ function x($s,$k = NULL) { } }} +// called from db initialisation if db is dead. + if(! function_exists('system_unavailable')) { function system_unavailable() { include('system_unavailable.php'); killme(); }} +// Primarily involved with database upgrade, but also sets the +// base url for use in cmdline programs which don't have +// $_SERVER variables. if(! function_exists('check_config')) { function check_config(&$a) { + load_config('system'); + $build = get_config('system','build'); if(! x($build)) $build = set_config('system','build',BUILD_ID); @@ -180,12 +236,11 @@ function check_config(&$a) { $stored = intval($build); $current = intval(BUILD_ID); if(($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; $x ++) { + for($x = $stored; $x < $current; $x ++) { if(function_exists('update_' . $x)) { $func = 'update_' . $x; $func($a); @@ -198,6 +253,13 @@ function check_config(&$a) { }} +// This is our template processor. +// $s is the string requiring macro substitution. +// $r is an array of key value pairs (search => replace) +// returns substituted string. +// WARNING: this is pretty basic, and doesn't properly handle search strings that are substrings of each other. +// For instance if 'test' => "foo" and 'testing' => "bar", testing could become either bar or fooing, +// depending on the order in which they were declared in the array. if(! function_exists('replace_macros')) { function replace_macros($s,$r) { @@ -215,21 +277,31 @@ function replace_macros($s,$r) { }} +// load string tranlsation table for alternate language + if(! function_exists('load_translation_table')) { function load_translation_table($lang) { global $a; + if(file_exists("view/$lang/strings.php")) + include("view/$lang/strings.php"); }} +// translate string if translation exists + if(! function_exists('t')) { function t($s) { - global $a; + + $a = get_app(); if($a->strings[$s]) return $a->strings[$s]; return $s; }} +// curl wrapper. If binary flag is true, return binary +// results. + if(! function_exists('fetch_url')) { function fetch_url($url,$binary = false) { $ch = curl_init($url); @@ -239,6 +311,21 @@ function fetch_url($url,$binary = false) { curl_setopt($ch, CURLOPT_FOLLOWLOCATION,true); curl_setopt($ch, CURLOPT_MAXREDIRS,8); curl_setopt($ch, CURLOPT_RETURNTRANSFER,true); + + // 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($ch, CURLOPT_BINARYTRANSFER,1); @@ -247,6 +334,7 @@ function fetch_url($url,$binary = false) { return($s); }} +// post request to $url. $params is an array of post variables. if(! function_exists('post_url')) { function post_url($url,$params) { @@ -259,47 +347,72 @@ function post_url($url,$params) { curl_setopt($ch, CURLOPT_RETURNTRANSFER,true); curl_setopt($ch, CURLOPT_POST,1); curl_setopt($ch, CURLOPT_POSTFIELDS,$params); + $check_cert = get_config('system','verifyssl'); + curl_setopt($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); + } $s = curl_exec($ch); curl_close($ch); return($s); }} +// 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. +// 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) { // protect against :<> with high-bit set 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 $a->config['register_policy']. + if(! function_exists('login')) { function login($register = false) { $o = ""; - $register_html = (($register) ? file_get_contents("view/register-link.tpl") : ""); + $register_html = (($register) ? load_view_file("view/register-link.tpl") : ""); if(x($_SESSION,'authenticated')) { - $o = file_get_contents("view/logout.tpl"); + $o = load_view_file("view/logout.tpl"); } else { - $o = file_get_contents("view/login.tpl"); + $o = load_view_file("view/login.tpl"); $o = replace_macros($o,array('$register_html' => $register_html )); } return $o; }} +// generate a string that's random, but usually pronounceable. +// used to generate initial passwords if(! function_exists('autoname')) { function autoname($len) { @@ -369,27 +482,40 @@ function autoname($len) { 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 variable +// of $st and an optional text of $message and terminates the current process. if(! function_exists('xml_status')) { -function xml_status($st) { +function xml_status($st, $message = '') { + + if(strlen($message)) + $xml_message = "\t" . xmlify($message) . "\r\n"; + header( "Content-type: text/xml" ); echo ''."\r\n"; - echo "$st\r\n"; + echo "\r\n\t$st\r\n$xml_message\r\n"; killme(); }} +// Returns the uid of locally logged on user or false. + if(! function_exists('local_user')) { function local_user() { if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid'))) @@ -397,6 +523,8 @@ function local_user() { return false; }} +// Returns contact id of authenticated site visitor or false + if(! function_exists('remote_user')) { function remote_user() { if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id'))) @@ -404,6 +532,9 @@ function remote_user() { 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) { @@ -411,12 +542,18 @@ function notice($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) { $buffer = ''; @@ -456,6 +593,9 @@ function xmlify($str) { return($buffer); }} +// undo an xmlify +// pass xml escaped text ($s), returns unescaped text + if(! function_exists('unxmlify')) { function unxmlify($s) { $ret = str_replace('&','&', $s); @@ -463,11 +603,22 @@ function unxmlify($s) { 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(&$a) { @@ -521,19 +672,27 @@ function paginate(&$a) { 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)) { - $a = explode('<',$s); - for($x = 0; $x < count($a); $x ++) { - $a[$x] = intval(str_replace(array('<','>'),array('',''),$a[$x])); + $t = str_replace('<','',$s); + $a = explode('>',$t); + foreach($a as $aa) { + if(intval($aa)) + $ret[] = intval($aa); } - return $a; } - return array(); + return $ret; }} +// Used to wrap ACL elements in angle brackets for storage + if(! function_exists('sanitise_acl')) { function sanitise_acl(&$item) { if(intval($item)) @@ -542,20 +701,68 @@ function sanitise_acl(&$item) { 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,$key) { +function get_config($family, $key, $instore = false) { + + global $a; + + if(! $instore) { + if(isset($a->config[$family][$key])) { + if($a->config[$family][$key] === '!!') { + 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)) + if(count($ret)) { + $a->config[$family][$key] = $ret[0]['v']; return $ret[0]['v']; + } + else { + $a->config[$family][$key] = '!!'; + } return false; }} +// Store a config value ($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,$value) { - if(get_config($family,$key) === false) { + + 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($key), @@ -565,7 +772,7 @@ function set_config($family,$key,$value) { return $value; return $ret; } - $ret = q("SUPDATE `config` SET `v` = '%s' WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1", + $ret = q("UPDATE `config` SET `v` = '%s' WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1", dbesc($value), dbesc($family), dbesc($key) @@ -574,3 +781,302 @@ function set_config($family,$key,$value) { 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. +// If this isn't an email style address just return $s. +// Return an empty string if email-style addresses but webfinger fails, +// or if the resultant personal XRD doesn't contain a DFRN profile. + +if(! function_exists('webfinger')) { +function webfinger($s) { + if(! strstr($s,'@')) { + return $s; + } + $host = substr($s,strpos($s,'@') + 1); + $url = 'http://' . $host . '/.well-known/host-meta' ; + $xml = fetch_url($url); + if (! $xml) + return ''; + $h = simplexml_load_string($xml); + $arr = convert_xml_element_to_array($h); + + if(! isset($arr['xrd']['link'])) + return ''; + + $link = $arr['xrd']['link']; + if(! isset($link[0])) + $links = array($link); + else + $links = $link; + + foreach($links as $link) + if($link['@attributes']['rel'] && $link['@attributes']['rel'] === 'lrdd') + $tpl = $link['@attributes']['template']; + if((empty($tpl)) || (! strpos($tpl, '{uri}'))) + return ''; + + $pxrd = str_replace('{uri}', urlencode('acct://'.$s), $tpl); + + $xml = fetch_url($pxrd); + if (! $xml) + return ''; + $h = simplexml_load_string($xml); + $arr = convert_xml_element_to_array($h); + + if(! isset($arr['xrd']['link'])) + return ''; + + $link = $arr['xrd']['link']; + if(! isset($link[0])) + $links = array($link); + else + $links = $link; + + foreach($links as $link) + if($link['@attributes']['rel'] == NAMESPACE_DFRN) + return $link['@attributes']['href']; + return ''; +}} + + +// Convert an ACL array to a storable string + +if(! function_exists('perms2str')) { +function perms2str($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 $resource; +}} + + +// Returns logged in user ID + +if(! function_exists('get_uid')) { +function get_uid() { + return ((x($_SESSION,'uid')) ? intval($_SESSION['uid']) : 0) ; +}} + +// Take a URL from the wild, prepend http:// if necessary +// and check DNS to see if it's real +// return true if it's OK, false if something is wrong with it + +if(! function_exists('validate_url')) { +function validate_url(&$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 .= '' + . $cnt . ' ' . t('people') . ' ' . (($type === 'like') ? t('like this.') : t('don\'t like this.')) . EOL ; + $total = count($arr); + if($total >= 75) + $arr = array_slice($arr,0,74); + if($total < 75) + $arr[count($arr)-1] = t('and') . ' ' . $arr[count($arr)-1]; + $str = implode(', ', $arr); + if($total >= 75) + $str .= t(', and ') . $total - 75 . t(' other people'); + $str .= (($type === 'like') ? t(' like this.') : t(' don\'t like this.')); + $o .= ''; + } + 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); +}} \ No newline at end of file