transfer from monorepo

worker/src/utils/githubCheck.ts

@@ -0,0 +1,36 @@
+export async function checkGitHub(username: string, token: string) {
+    // 1. Check username
+    const userRes = await fetch(`https://api.github.com/users/${username}`);
+    const isUsernameValid = userRes.status === 200;
+  
+    // 2. Check token
+    const tokenRes = await fetch('https://api.github.com/user', {
+      headers: {
+        Authorization: `token ${token}`,
+      },
+    });
+    const isTokenValid = tokenRes.status === 200;
+    const isIdentityValid = await checkGitHubIdentity(username, token);
+    return isIdentityValid&&isUsernameValid&&isTokenValid
+}
+
+async function checkGitHubIdentity(username: string, token: string) {
+    const res = await fetch('https://api.github.com/user', {
+      headers: {
+        Authorization: `token ${token}`,
+        Accept: 'application/vnd.github.v3+json',
+      },
+    });
+  
+    if (res.status !== 200) {
+      return false
+    }
+  
+    const data = await res.json();
+  
+    if (data.login.toLowerCase() !== username.toLowerCase()) {
+      return false
+    }
+  
+    return true
+}