code-upload (#1)

Upload code

Изменил(а) на 'README.md'

Изменил(а) на 'README.md'

Reviewed-on: https://src.lopar.us/lopar/AntiBK/pulls/1
Co-Authored-By: Ivor Barhansky <lopar@noreply.lopar.us>
Co-Committed-By: Ivor Barhansky <lopar@noreply.lopar.us>

engline/token/lpg.csrf.token.php

@@ -0,0 +1,27 @@
+<?
+function create_token ($token_key)
+{
+  $_SESSION['token'] = md5(time().$_SERVER['REMOTE_ADDR'].$_SERVER['HTTP_USER_AGENT'].$token_key);
+}
+
+function lpg_csrf_token ($token_key, $expire_time = 5)
+{
+  $headers = lpg_getallheaders();
+
+  if (isset($headers['X-CSRF-TOKEN']) && isset($headers['X-REQUESTED-WITH']) && ($headers['X-REQUESTED-WITH'] == 'XMLHttpRequest'))
+  {
+    $token = trim($headers['X-CSRF-TOKEN']);
+    if ($token == '' || $token != $_SESSION['token'])
+    {
+      error_log("[LPG_CSRF_TOKEN] Warning: CSRF Attempt! Ajax attack from site: ".(isset($_SERVER['HTTP_REFERER']) ?$_SERVER['HTTP_REFERER'] :'This site!'));
+      return false;
+    }
+  }
+  else
+  {
+    error_log("[LPG_CSRF_TOKEN] Warning: CSRF Attempt! Ajax attack from site: ".(isset($_SERVER['HTTP_REFERER']) ?$_SERVER['HTTP_REFERER'] :'This site!'));
+    return false;
+  }
+  return true;
+}
+?>