Migration towards TypeScript

This is going to be 1.1.0. Remaining TODOs:
* "npm run tsc" should generate declarations
* Add (restrictive) TSLint configuration
* Add support for TSLint in "npm test"

src/request.ts

@@ -0,0 +1,63 @@
+'use strict';
+import request = require('request');
+import typings = require('./typings');
+var isAuthenticated = false;
+
+/**
+ * Performs a GET request for the resource.
+ */
+export function get(config: typings.IConfig, options: request.Options, done: (err: Error, result?: string) => void) {
+  authenticate(config, err => {
+    if (err) return done(err);
+    request.get(modify(options), (err: Error, response: any, body: any) => {
+      if (err) return done(err);
+      done(null, typeof body === 'string' ? body : String(body));
+    });
+  });
+}
+
+/**
+* Performs a POST request for the resource.
+*/
+export function post(config: typings.IConfig, options: request.Options, done: (err: Error, result?: string) => void) {
+  authenticate(config, err => {
+    if (err) return done(err);
+    request.post(modify(options), (err: Error, response: any, body: any) => {
+      if (err) return done(err);
+      done(null, typeof body === 'string' ? body : String(body));
+    });
+  });
+}
+
+/**
+ * Authenticates using the configured pass and user.
+ */
+function authenticate(config: typings.IConfig, done: (err: Error) => void) {
+  if (isAuthenticated || !config.pass || !config.user) return done(null);
+  var options = {
+    form: {
+      formname: 'RpcApiUser_Login',
+      fail_url: 'https://www.crunchyroll.com/login',
+      name: config.user,
+      password: config.pass
+    },
+    jar: true,
+    url: 'https://www.crunchyroll.com/?a=formhandler'
+  };
+  request.post(options, (err: Error) => {
+    if (err) return done(err);
+    isAuthenticated = true;
+    done(null);
+  });
+}
+
+/**
+ * Modifies the options to use the authenticated cookie jar.
+ */
+function modify(options: string|request.Options): request.Options {
+  if (typeof options !== 'string') {
+    options.jar = true;
+    return options;
+  }
+  return {jar: true, url: options.toString()};
+}