import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/security/test/csp/file_testserver.sjs

@@ -0,0 +1,57 @@
+// SJS file for CSP mochitests
+"use strict";
+Components.utils.import("resource://gre/modules/NetUtil.jsm");
+Components.utils.importGlobalProperties(["URLSearchParams"]);
+
+function loadHTMLFromFile(path) {
+  // Load the HTML to return in the response from file.
+  // Since it's relative to the cwd of the test runner, we start there and
+  // append to get to the actual path of the file.
+  const testHTMLFile =
+    Components.classes["@mozilla.org/file/directory_service;1"].
+    getService(Components.interfaces.nsIProperties).
+    get("CurWorkD", Components.interfaces.nsILocalFile);
+
+  const testHTMLFileStream =
+    Components.classes["@mozilla.org/network/file-input-stream;1"].
+    createInstance(Components.interfaces.nsIFileInputStream);
+
+  path
+    .split("/")
+    .filter(path => path)
+    .reduce((file, path) => {
+      testHTMLFile.append(path)
+      return testHTMLFile;
+    }, testHTMLFile);
+  testHTMLFileStream.init(testHTMLFile, -1, 0, 0);
+  const isAvailable = testHTMLFileStream.available();
+  return NetUtil.readInputStreamToString(testHTMLFileStream, isAvailable);
+}
+
+function handleRequest(request, response) {
+  const query = new URLSearchParams(request.queryString);
+
+  // avoid confusing cache behaviors
+  response.setHeader("Cache-Control", "no-cache", false);
+
+  // Deliver the CSP policy encoded in the URL
+  if(query.has("csp")){
+    response.setHeader("Content-Security-Policy", query.get("csp"), false);
+  }
+
+  // Deliver the CSP report-only policy encoded in the URI
+  if(query.has("cspRO")){
+    response.setHeader("Content-Security-Policy-Report-Only", query.get("cspRO"), false);
+  }
+
+  // Deliver the CORS header in the URL
+  if(query.has("cors")){
+    response.setHeader("Access-Control-Allow-Origin", query.get("cors"), false);
+  }
+
+  // Send HTML to test allowed/blocked behaviors
+  response.setHeader("Content-Type", "text/html", false);
+  if(query.has("file")){
+    response.write(loadHTMLFromFile(query.get("file")));
+  }
+}