1 files changed, 44 insertions, 0 deletions
diff --git a/netwerk/test/unit/test_bug412457.js b/netwerk/test/unit/test_bug412457.js
new file mode 100644
index 000000000..dd4358413
--- /dev/null
+++ b/netwerk/test/unit/test_bug412457.js
@@ -0,0 +1,44 @@
+function run_test() {
+  var ios = Cc["@mozilla.org/network/io-service;1"].
+    getService(Ci.nsIIOService);
+
+  // check if hostname is unescaped before applying IDNA
+  var newURI = ios.newURI("http://\u5341%2ecom/", null, null);
+  do_check_eq(newURI.asciiHost, "xn--kkr.com");
+
+  // escaped UTF8
+  newURI.spec = "http://%e5%8d%81.com";
+  do_check_eq(newURI.asciiHost, "xn--kkr.com");
+
+  // There should be only allowed characters in hostname after
+  // unescaping and attempting to apply IDNA. "\x80" is illegal in
+  // UTF-8, so IDNA fails, and 0x80 is illegal in DNS too.
+  Assert.throws(() => { newURI.spec = "http://%80.com"; }, "illegal UTF character");
+
+  // test parsing URL with all possible host terminators
+  newURI.spec = "http://example.com?foo";
+  do_check_eq(newURI.asciiHost, "example.com");
+
+  newURI.spec = "http://example.com#foo";
+  do_check_eq(newURI.asciiHost, "example.com");
+
+  newURI.spec = "http://example.com:80";
+  do_check_eq(newURI.asciiHost, "example.com");
+
+  newURI.spec = "http://example.com/foo";
+  do_check_eq(newURI.asciiHost, "example.com");
+
+  // Characters that are invalid in the host, shouldn't be decoded.
+  newURI.spec = "http://example.com%3ffoo";
+  do_check_eq(newURI.asciiHost, "example.com%3ffoo");
+  newURI.spec = "http://example.com%23foo";
+  do_check_eq(newURI.asciiHost, "example.com%23foo");
+  newURI.spec = "http://example.com%3bfoo";
+  do_check_eq(newURI.asciiHost, "example.com%3bfoo");
+  newURI.spec = "http://example.com%3a80";
+  do_check_eq(newURI.asciiHost, "example.com%3a80");
+  newURI.spec = "http://example.com%2ffoo";
+  do_check_eq(newURI.asciiHost, "example.com%2ffoo");
+  newURI.spec = "http://example.com%00";
+  do_check_eq(newURI.asciiHost, "example.com%00");
+}
+\ No newline at end of file