http : Add cookie module (denoland/deno_std#338)

Original: https://github.com/denoland/deno_std/commit/1d8544788648b4c571d10b9a55cc3670a1cbf69c

3 files changed, 47 insertions, 0 deletions

diff --git a/http/cookie.ts b/http/cookie.ts
new file mode 100644
index 000000000..e78d48238
--- /dev/null
+++ b/http/cookie.ts
@@ -0,0 +1,21 @@
+// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
+import { ServerRequest } from "./server.ts";
+
+export interface Cookie {
+  [key: string]: string;
+}
+
+/* Parse the cookie of the Server Request */
+export function getCookie(rq: ServerRequest): Cookie {
+  if (rq.headers.has("Cookie")) {
+    const out: Cookie = {};
+    const c = rq.headers.get("Cookie").split(";");
+    for (const kv of c) {
+      const cookieVal = kv.split("=");
+      const key = cookieVal.shift().trim();
+      out[key] = cookieVal.join("");
+    }
+    return out;
+  }
+  return {};
+}
diff --git a/http/cookie_test.ts b/http/cookie_test.ts
new file mode 100644
index 000000000..e8f920b31
--- /dev/null
+++ b/http/cookie_test.ts
@@ -0,0 +1,25 @@
+// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
+import { ServerRequest } from "./server.ts";
+import { getCookie } from "./cookie.ts";
+import { assertEquals } from "../testing/asserts.ts";
+import { test } from "../testing/mod.ts";
+
+test({
+  name: "[HTTP] Cookie parser",
+  fn(): void {
+    let req = new ServerRequest();
+    req.headers = new Headers();
+    assertEquals(getCookie(req), {});
+    req.headers = new Headers();
+    req.headers.set("Cookie", "foo=bar");
+    assertEquals(getCookie(req), { foo: "bar" });
+
+    req.headers = new Headers();
+    req.headers.set("Cookie", "full=of  ; tasty=chocolate");
+    assertEquals(getCookie(req), { full: "of  ", tasty: "chocolate" });
+
+    req.headers = new Headers();
+    req.headers.set("Cookie", "igot=99; problems=but...");
+    assertEquals(getCookie(req), { igot: "99", problems: "but..." });
+  }
+});
diff --git a/http/test.ts b/http/test.ts
index 938ea4458..7226ad40f 100644
--- a/http/test.ts
+++ b/http/test.ts
@@ -1,4 +1,5 @@
 // Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
+import "./cookie_test.ts";
 import "./server_test.ts";
 import "./file_server_test.ts";
 import "./racing_server_test.ts";