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// Utility for OAuth authentication with MCP servers
// Usage: import { authenticateWithOAuth } from "./oauth";
export async function authenticateWithOAuth({
authUrl,
clientId,
redirectUri,
scope = "openid profile",
}: {
authUrl: string;
clientId: string;
redirectUri: string;
scope?: string;
}): Promise<string> {
// Open a popup for OAuth login
const state = Math.random().toString(36).substring(2);
const url = `${authUrl}?response_type=token&client_id=${encodeURIComponent(
clientId
)}&redirect_uri=${encodeURIComponent(redirectUri)}&scope=${encodeURIComponent(
scope
)}&state=${state}`;
return new Promise((resolve, reject) => {
const popup = window.open(url, "oauth-login", "width=500,height=700");
if (!popup) return reject("Popup blocked");
const interval = setInterval(() => {
try {
if (!popup || popup.closed) {
clearInterval(interval);
reject("Popup closed");
}
// Check for access token in URL
const href = popup.location.href;
if (href.startsWith(redirectUri)) {
const hash = popup.location.hash;
const params = new URLSearchParams(hash.substring(1));
const token = params.get("access_token");
if (token) {
clearInterval(interval);
popup.close();
resolve(token);
} else {
clearInterval(interval);
popup.close();
reject("No access token found");
}
}
} catch (e) {
// Ignore cross-origin errors until redirect
}
}, 500);
});
}
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