diff --git a/counter.php b/counter.php
index 619400d..e5778d4 100644
--- a/counter.php
+++ b/counter.php
@@ -19,7 +19,8 @@
*/
//prepare
-include_once('counter_config.php');
+require_once('counter_config.php');
+send_headers();
$time=time();
$update_time=$time-($time%3600);
try{
@@ -37,16 +38,15 @@ if(!$id=$stmt->fetch(PDO::FETCH_NUM)){
}
//headers
-header('Pragma: no-cache');
-header('Cache-Control: no-cache, no-store, must-revalidate, max-age=0');
-header('Expires: 0');
+header_remove('X-Frame-Options');
+header("Content-Security-Policy: base-uri 'self'; default-src 'none'; frame-ancestors '*'");
header('Content-Type: image/gif');
//add visitor to db
if(isSet($_COOKIE["counted$_REQUEST[id]"])){
$stmt=$db->prepare('INSERT INTO ' . PREFIX . 'visitors (id, time, count, unique_count) VALUES (?, ?, 1, 1) ON DUPLICATE KEY UPDATE count=count+1;');
}else{
- setcookie("counted$_REQUEST[id]", 1, $time+3600);
+ set_secure_cookie("counted$_REQUEST[id]", 1);
$stmt=$db->prepare('INSERT INTO ' . PREFIX . 'visitors (id, time, count, unique_count) VALUES (?, ?, 1, 1) ON DUPLICATE KEY UPDATE count=count+1, unique_count=unique_count+1;');
}
$stmt->execute([$id[0], $update_time]);
@@ -95,4 +95,3 @@ if(isset($_REQUEST['tr']) && $_REQUEST['tr']==1){
imagestring($im, 5, 5, 5, $num[0], $fg);
imagegif($im);
imagedestroy($im);
-?>
diff --git a/counter_config.php b/counter_config.php
index b3ff4af..57d46af 100644
--- a/counter_config.php
+++ b/counter_config.php
@@ -31,6 +31,8 @@ const VERSION='1.0'; // Script version
const DBVERSION=1; // Database layout version
// Language selection
+$I = $T = [];
+$language=LANG;
$L=[
'de' => 'Deutsch',
'en' => 'English',
@@ -39,17 +41,14 @@ $L=[
if(isSet($_REQUEST['lang']) && isSet($L[$_REQUEST['lang']])){
$language=$_REQUEST['lang'];
if(!isSet($_COOKIE['language']) || $_COOKIE['language']!==$language){
- setcookie('language', $language);
+ set_secure_cookie('language', $language);
}
}elseif(isSet($_COOKIE['language']) && isSet($L[$_COOKIE['language']])){
$language=$_COOKIE['language'];
-}else{
- $language=LANG;
}
-include_once('counter_lang_en.php'); //always include English
+require_once('counter_lang_en.php'); //always include English
if($language!=='en'){
- $T=[];
- include_once("counter_lang_$language.php"); //replace with translation if available
+ require_once("counter_lang_$language.php"); //replace with translation if available
foreach($T as $name=>$translation){
$I[$name]=$translation;
}
@@ -58,15 +57,55 @@ if($language!=='en'){
function print_langs(){
global $I, $L;
echo "$I[language]: ";
- $query=preg_replace('/(&?lang=[a-z_\-]*)/i', '', $_SERVER['QUERY_STRING']);
+ $query=ltrim(preg_replace('/&?lang=[a-z_\-]*/i', '', $_SERVER['QUERY_STRING']), '&');
foreach($L as $code=>$name){
if($query===''){
$uri="?lang=$code";
}else{
$uri='?'.htmlspecialchars($query)."&lang=$code";
}
- echo " $name";
+ echo " $name";
}
echo '';
}
-?>
+
+function send_headers(array $styles = []){
+ header('Content-Type: text/html; charset=UTF-8');
+ header('Pragma: no-cache');
+ header('Cache-Control: no-cache, no-store, must-revalidate, max-age=0, private');
+ header('Expires: 0');
+ header('Referrer-Policy: no-referrer');
+ header("Permissions-Policy: accelerometer 'none'; ambient-light-sensor 'none'; autoplay 'none'; battery 'none'; camera 'none'; cross-origin-isolated 'none'; display-capture 'none'; document-domain 'none'; encrypted-media 'none'; geolocation 'none'; fullscreen 'none'; execution-while-not-rendered 'none'; execution-while-out-of-viewport 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; midi 'none'; navigation-override 'none'; payment 'none'; picture-in-picture 'none'; publickey-credentials-get 'none'; screen-wake-lock 'none'; sync-xhr 'none'; usb 'none'; web-share 'none'; xr-spatial-tracking 'none'; clipboard-read 'none'; clipboard-write 'none'; gamepad 'none'; speaker-selection 'none'; conversion-measurement 'none'; focus-without-user-activation 'none'; hid 'none'; idle-detection 'none'; sync-script 'none'; vertical-scroll 'none'; serial 'none'; trust-token-redemption 'none';");
+ $style_hashes = '';
+ foreach($styles as $style) {
+ $style_hashes .= " 'sha256-".base64_encode(hash('sha256', $style, true))."'";
+ }
+ header("Content-Security-Policy: base-uri 'self'; default-src 'none'; form-action 'self'; frame-ancestors 'none'; img-src 'self' data:; style-src $style_hashes");
+ header('X-Content-Type-Options: nosniff');
+ header('X-Frame-Options: sameorigin');
+ header('X-XSS-Protection: 1; mode=block');
+ if($_SERVER['REQUEST_METHOD'] === 'HEAD'){
+ exit; // headers sent, no further processing needed
+ }
+}
+
+function set_secure_cookie(string $name, string $value){
+ if (version_compare(PHP_VERSION, '7.3.0') >= 0) {
+ setcookie($name, $value, ['expires' => 0, 'path' => '/', 'domain' => '', 'secure' => is_definitely_ssl(), 'httponly' => true, 'samesite' => 'Strict']);
+ }else{
+ setcookie($name, $value, 0, '/', '', is_definitely_ssl(), true);
+ }
+}
+
+function is_definitely_ssl() : bool {
+ if (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') {
+ return true;
+ }
+ if (isset($_SERVER['SERVER_PORT']) && ('443' == $_SERVER['SERVER_PORT'])) {
+ return true;
+ }
+ if (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && ('https' === $_SERVER['HTTP_X_FORWARDED_PROTO'])) {
+ return true;
+ }
+ return false;
+}
diff --git a/counter_lang_de.php b/counter_lang_de.php
index dacad66..f3d0843 100644
--- a/counter_lang_de.php
+++ b/counter_lang_de.php
@@ -57,4 +57,3 @@ $T=[
'statusok' => 'Status: OK',
'nodb' => 'Keine Datenbankverbindung!',
];
-?>
diff --git a/counter_lang_en.php b/counter_lang_en.php
index 64cc00e..11d0553 100644
--- a/counter_lang_en.php
+++ b/counter_lang_en.php
@@ -57,4 +57,3 @@ $I=[
'statusok' => 'Status: OK',
'nodb' => 'No database connection!',
];
-?>
diff --git a/counter_lang_ja.php b/counter_lang_ja.php
index 3aa7136..f74ed74 100644
--- a/counter_lang_ja.php
+++ b/counter_lang_ja.php
@@ -56,4 +56,3 @@ $T=[
'statusok' => '状態: OK',
'nodb' => 'データベースへの接続がありません!',
];
-?>
diff --git a/counter_reg.php b/counter_reg.php
index cee4d72..f05ccc0 100644
--- a/counter_reg.php
+++ b/counter_reg.php
@@ -18,14 +18,18 @@
* along with this program. If not, see