Files
Netcatty/electron/bridges/githubAuthBridge.cjs

107 lines
3.1 KiB
JavaScript

/**
* GitHub OAuth Bridge (main process)
*
* Renderer fetches to `github.com/login/*` are blocked by CORS.
* This bridge proxies GitHub Device Flow endpoints via the main process.
*/
const GITHUB_CLIENT_ID = process.env.VITE_SYNC_GITHUB_CLIENT_ID || "";
const GITHUB_DEVICE_CODE_URL = "https://github.com/login/device/code";
const GITHUB_ACCESS_TOKEN_URL = "https://github.com/login/oauth/access_token";
const pendingPollControllers = new Map();
/**
* @param {Electron.IpcMain} ipcMain
*/
function registerHandlers(ipcMain) {
ipcMain.handle("netcatty:github:deviceFlow:start", async (_event, payload) => {
const clientId = payload?.clientId || GITHUB_CLIENT_ID;
const scope = payload?.scope || "gist read:user";
const res = await fetch(GITHUB_DEVICE_CODE_URL, {
method: "POST",
headers: {
Accept: "application/json",
"Content-Type": "application/x-www-form-urlencoded",
},
body: new URLSearchParams({
client_id: clientId,
scope,
}).toString(),
});
const text = await res.text();
if (!res.ok) {
throw new Error(`GitHub device flow failed: ${res.status} - ${text}`);
}
let data;
try {
data = JSON.parse(text);
} catch {
throw new Error(`GitHub device flow invalid JSON: ${text.slice(0, 200)}`);
}
return {
deviceCode: data.device_code,
userCode: data.user_code,
verificationUri: data.verification_uri,
expiresAt: Date.now() + (data.expires_in || 0) * 1000,
interval: data.interval || 5,
};
});
ipcMain.handle("netcatty:github:deviceFlow:poll", async (_event, payload) => {
const clientId = payload?.clientId || GITHUB_CLIENT_ID;
const deviceCode = payload?.deviceCode;
const pollId = payload?.pollId;
if (!deviceCode) throw new Error("Missing deviceCode");
const controller = new AbortController();
if (pollId) {
pendingPollControllers.set(pollId, controller);
}
try {
const res = await fetch(GITHUB_ACCESS_TOKEN_URL, {
method: "POST",
signal: controller.signal,
headers: {
Accept: "application/json",
"Content-Type": "application/x-www-form-urlencoded",
},
body: new URLSearchParams({
client_id: clientId,
device_code: deviceCode,
grant_type: "urn:ietf:params:oauth:grant-type:device_code",
}).toString(),
});
const text = await res.text();
if (!res.ok) {
throw new Error(`GitHub token polling failed: ${res.status} - ${text}`);
}
try {
return JSON.parse(text);
} catch {
throw new Error(`GitHub token polling invalid JSON: ${text.slice(0, 200)}`);
}
} finally {
if (pollId) {
pendingPollControllers.delete(pollId);
}
}
});
ipcMain.handle("netcatty:github:deviceFlow:cancelPoll", async (_event, pollId) => {
if (!pollId) return;
const controller = pendingPollControllers.get(pollId);
if (!controller) return;
pendingPollControllers.delete(pollId);
controller.abort();
});
}
module.exports = { registerHandlers };