1 files changed, 40 insertions, 0 deletions
diff --git a/dom/tests/mochitest/general/frameStorageNullprincipal.sjs b/dom/tests/mochitest/general/frameStorageNullprincipal.sjs
new file mode 100644
index 0000000000..7dfdc32d1e
--- /dev/null
+++ b/dom/tests/mochitest/general/frameStorageNullprincipal.sjs
@@ -0,0 +1,40 @@
+// This is a sjs file which reads in frameStoragePrevented.html, and writes it out as a data: URI, which this page redirects to.
+// This produces a URI with the null principal, which should be unable to access storage.
+// We append the #nullprincipal hash to the end of the data: URI to tell the script that it shouldn't try to spawn a webworker,
+// as it won't be allowed to, as it has a null principal.
+
+function handleRequest(request, response) {
+  // Get the nsIFile for frameStoragePrevented.html
+  var file;
+  getObjectState("SERVER_ROOT", function (serverRoot) {
+    file = serverRoot.getFile(
+      "/tests/dom/tests/mochitest/general/frameStoragePrevented.html"
+    );
+  });
+
+  // Set up the file streams to read in the file as UTF-8
+  let fstream = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
+  fstream.init(file, -1, 0, 0);
+  let cstream = Components.classes[
+    "@mozilla.org/intl/converter-input-stream;1"
+  ].createInstance(Components.interfaces.nsIConverterInputStream);
+  cstream.init(fstream, "UTF-8", 0, 0);
+
+  // Read in the file, and concatenate it onto the data string
+  let data = "";
+  let str = {};
+  let read = 0;
+  do {
+    read = cstream.readString(0xffffffff, str);
+    data += str.value;
+  } while (read != 0);
+
+  // Write out the file as a data: URI, and redirect to it
+  response.setStatusLine("1.1", 302, "Found");
+  response.setHeader(
+    "Location",
+    "data:text/html," + encodeURIComponent(data) + "#nullprincipal"
+  );
+}