commit 51b19bc74304840fc4d0eadd1ab86b506309bbdb
Author: Beat Jäckle <beat@git.jdmweb2.ch>
Date:   Mon Jul 19 22:09:55 2021 +0200

    init

diff --git a/public/canonical.html b/public/canonical.html
new file mode 100644
index 0000000..4126386
--- /dev/null
+++ b/public/canonical.html
@@ -0,0 +1 @@
+<meta http-equiv="refresh" content="0;url=https://support.mozilla.org/kb/captive-portal"/>
\ No newline at end of file
diff --git a/public/index.php b/public/index.php
new file mode 100644
index 0000000..9cecdfa
--- /dev/null
+++ b/public/index.php
@@ -0,0 +1,18 @@
+<?php
+if ($_SERVER['REDIRECT_URL']=='/ip'){
+    print($_SERVER['REMOTE_ADDR']);
+    die("\n");
+}
+$ua = $_SERVER['HTTP_USER_AGENT'];
+if ($_SERVER['REDIRECT_URL']=='/ua'){
+    print($ua);
+    die("\n");
+}
+$slash = strrchr($ua,'/');
+$ffversion = intval(substr($slash,1));
+if ($ffversion >= 89){
+            die('<meta http-equiv="refresh" content="0;url=https://support.mozilla.org/kb/captive-portal"/>');
+    } else {
+            die('success');
+    }
+// Source: https://www.encrypted.at/firefox-captive-portal-url/
diff --git a/public/ip.php b/public/ip.php
new file mode 100644
index 0000000..92a25cc
--- /dev/null
+++ b/public/ip.php
@@ -0,0 +1,2 @@
+<?=$_SERVER['REMOTE_ADDR']?>
+
diff --git a/public/success.txt b/public/success.txt
new file mode 100644
index 0000000..2e9ba47
--- /dev/null
+++ b/public/success.txt
@@ -0,0 +1 @@
+success