poc

src/background.ts

@@ -0,0 +1,31 @@
+import { LoginMessage, Message, MessageType } from './message';
+
+const COOKIE_NAME = 'sid';
+
+chrome.runtime.onMessage.addListener(
+  (message: Message, sender, sendResponse) => {
+    switch (message.type) {
+      case MessageType.LOGIN:
+        handleLogin(message);
+    }
+  }
+);
+
+const handleLogin = async (message: LoginMessage) => {
+  const cookie = await chrome.cookies.get({
+    name: COOKIE_NAME,
+    url: message.url,
+  });
+
+  console.log(cookie);
+
+  const url = new URL(message.url);
+  url.pathname = '/game.php';
+  url.searchParams.set('screen', 'overview_villages');
+  const resp = await fetch(url.toString(), {
+    method: 'GET',
+    credentials: 'include',
+    redirect: 'manual',
+  });
+  console.log(resp.status, resp.redirected);
+};

src/content.ts

@@ -1,12 +1,4 @@
-const handleClick = (e: MouseEvent) => {
-  if (!(e.currentTarget instanceof HTMLAnchorElement)) {
-    return;
-  }
-
-  e.preventDefault();
-
-  console.log(e.currentTarget.href);
-};
+import { LoginMessage, MessageType } from './message';
 
 const renderUI = () => {
   document
@@ -29,6 +21,30 @@ const renderUI = () => {
     });
 };
 
+const handleClick = (e: MouseEvent) => {
+  if (!(e.currentTarget instanceof HTMLAnchorElement)) {
+    return;
+  }
+
+  e.preventDefault();
+
+  const url = new URL(e.currentTarget.href);
+  const server = extractServerFromURL(url);
+  chrome.runtime.sendMessage({
+    type: MessageType.LOGIN,
+    server,
+    url: url.protocol + '//' + url.host.replace('www', server),
+  } as LoginMessage);
+};
+
+const extractServerFromURL = (url: URL): string => {
+  const split = url.pathname.split('/');
+  if (split.length <= 0) {
+    throw new Error(`invalid path: ${url.pathname}`);
+  }
+  return split[split.length - 1];
+};
+
 const init = () => {
   renderUI();
 };

src/message.ts

@@ -0,0 +1,11 @@
+export enum MessageType {
+  LOGIN,
+}
+
+export type LoginMessage = {
+  type: MessageType.LOGIN;
+  url: string;
+  server: string;
+};
+
+export type Message = LoginMessage;