1 files changed, 18 insertions, 0 deletions
diff --git a/check.php b/check.php
new file mode 100644
index 0000000..d221550
--- /dev/null
+++ b/check.php
@@ -0,0 +1,18 @@
+<?php
+
+header("Content-Type: text/plain");
+
+if (isset($_GET['k'])) {
+    if (strlen($_GET['k']) >= "35" || trim($_GET['k']) === "") {
+        die("0");
+    } else {
+        $keys = explode("\n", file_get_contents("/data-krtk/data/eaps.txt"));
+        if (in_array($_GET['k'], $keys)) {
+            die("1");
+        } else {
+            die("0");
+        }
+    }
+} else {
+    die("0");
+}