Move WebExtensions enabled Add-ons Manager

toolkit/mozapps/webextensions/test/xpinstall/slowinstall.sjs

@@ -0,0 +1,101 @@
+const { classes: Cc, interfaces: Ci, utils: Cu } = Components;
+
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/osfile.jsm");
+Cu.import("resource://gre/modules/NetUtil.jsm");
+
+const RELATIVE_PATH = "browser/toolkit/mozapps/extensions/test/xpinstall"
+const NOTIFICATION_TOPIC = "slowinstall-complete";
+
+/**
+ * Helper function to create a JS object representing the url parameters from
+ * the request's queryString.
+ *
+ * @param  aQueryString
+ *         The request's query string.
+ * @return A JS object representing the url parameters from the request's
+ *         queryString.
+ */
+function parseQueryString(aQueryString) {
+  var paramArray = aQueryString.split("&");
+  var regex = /^([^=]+)=(.*)$/;
+  var params = {};
+  for (var i = 0, sz = paramArray.length; i < sz; i++) {
+    var match = regex.exec(paramArray[i]);
+    if (!match)
+      throw "Bad parameter in queryString!  '" + paramArray[i] + "'";
+    params[decodeURIComponent(match[1])] = decodeURIComponent(match[2]);
+  }
+
+  return params;
+}
+
+function handleRequest(aRequest, aResponse) {
+  let id = +getState("ID");
+  setState("ID", "" + (id + 1));
+
+  function LOG(str) {
+    dump("slowinstall.sjs[" + id + "]: " + str + "\n");
+  }
+
+  aResponse.setStatusLine(aRequest.httpVersion, 200, "OK");
+
+  var params = { };
+  if (aRequest.queryString)
+    params = parseQueryString(aRequest.queryString);
+
+  if (params.file) {
+    let xpiFile = "";
+
+    function complete_download() {
+      LOG("Completing download");
+      downloadPaused = false;
+
+      try {
+        // Doesn't seem to be a sane way to read using OS.File and write to an
+        // nsIOutputStream so here we are.
+        let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
+        file.initWithPath(xpiFile);
+        let stream = Cc["@mozilla.org/network/file-input-stream;1"].
+                     createInstance(Ci.nsIFileInputStream);
+        stream.init(file, -1, -1, stream.DEFER_OPEN + stream.CLOSE_ON_EOF);
+
+        NetUtil.asyncCopy(stream, aResponse.bodyOutputStream, () => {
+          LOG("Download complete");
+          aResponse.finish();
+        });
+      }
+      catch (e) {
+        LOG("Exception " + e);
+      }
+    }
+
+    let waitForComplete = new Promise(resolve => {
+      function complete() {
+        Services.obs.removeObserver(complete, NOTIFICATION_TOPIC);
+        resolve();
+      }
+
+      Services.obs.addObserver(complete, NOTIFICATION_TOPIC, false);
+    });
+
+    aResponse.processAsync();
+
+    OS.File.getCurrentDirectory().then(dir => {
+      xpiFile = OS.Path.join(dir, ...RELATIVE_PATH.split("/"), params.file);
+      LOG("Starting slow download of " + xpiFile);
+
+      OS.File.stat(xpiFile).then(info => {
+        aResponse.setHeader("Content-Type", "binary/octet-stream");
+        aResponse.setHeader("Content-Length", info.size.toString());
+
+        LOG("Download paused");
+        waitForComplete.then(complete_download);
+      });
+    });
+  }
+  else if (params.continue) {
+    dump("slowinstall.sjs: Received signal to complete all current downloads.\n");
+    Services.obs.notifyObservers(null, NOTIFICATION_TOPIC, null);
+  }
+}