feat: add `/version` request

kms.php

@@ -30,6 +30,7 @@ $VLMCSD = array( // vlmcsd process
 );
 
 function load_nginx_config(int $kms_port, int $http_port): void {
+    global $VERSION;
     $nginx_config = "server {
     listen $http_port;
     listen [::]:$http_port ipv6only=on;
@@ -51,6 +52,7 @@ function load_nginx_config(int $kms_port, int $http_port): void {
         }
         fastcgi_param KMS_PORT $kms_port;
         fastcgi_param KMS_CLI \$cli_mode;
+        fastcgi_param KMS_VER $VERSION;
         fastcgi_param SCRIPT_FILENAME /kms-server/src/Route.php;
     }\n}\n";
     logging::debug("Nginx configure ->\n" . $nginx_config);

src/Route.php

@@ -19,6 +19,18 @@ if ($url == '/json') { // show keys in json format
     return; // skip following process
 }
 
+if ($url == '/version') { // show version info
+    if ($isCli) { // cli mode
+        echo "\033[33mkms-server\033[0m => \033[36m" . getenv('KMS_VER') . "\033[0m\n";
+    } else {
+        mimeJson();
+        echo json_encode(array(
+            'version' => getenv('KMS_VER')
+        ));
+    }
+    return; // skip following process
+}
+
 $isGbk = false; // utf-8 or gbk
 $isJson = false; // json output
 if ($url == '/win/gbk' or $url == '/win-server/gbk') {