9router/src/lib/oauth/providers.js

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2026-01-04 21:58:59 -05:00
/**
* OAuth Provider Configurations and Handlers
* Centralized DRY approach for all OAuth providers
*/
import { generatePKCE, generateState } from "./utils/pkce";
import {
CLAUDE_CONFIG,
CODEX_CONFIG,
GEMINI_CONFIG,
QWEN_CONFIG,
IFLOW_CONFIG,
ANTIGRAVITY_CONFIG,
GITHUB_CONFIG,
} from "./constants/oauth";
// Provider configurations
const PROVIDERS = {
claude: {
config: CLAUDE_CONFIG,
flowType: "authorization_code_pkce",
buildAuthUrl: (config, redirectUri, state, codeChallenge) => {
const params = new URLSearchParams({
code: "true",
client_id: config.clientId,
response_type: "code",
redirect_uri: redirectUri,
scope: config.scopes.join(" "),
code_challenge: codeChallenge,
code_challenge_method: config.codeChallengeMethod,
state: state,
});
return `${config.authorizeUrl}?${params.toString()}`;
},
exchangeToken: async (config, code, redirectUri, codeVerifier, state) => {
// Parse code - may contain state after #
let authCode = code;
let codeState = "";
if (authCode.includes("#")) {
const parts = authCode.split("#");
authCode = parts[0];
codeState = parts[1] || "";
}
const response = await fetch(config.tokenUrl, {
method: "POST",
headers: {
"Content-Type": "application/json",
Accept: "application/json",
},
body: JSON.stringify({
code: authCode,
state: codeState || state,
grant_type: "authorization_code",
client_id: config.clientId,
redirect_uri: redirectUri,
code_verifier: codeVerifier,
}),
});
if (!response.ok) {
const error = await response.text();
throw new Error(`Token exchange failed: ${error}`);
}
return await response.json();
},
mapTokens: (tokens) => ({
accessToken: tokens.access_token,
refreshToken: tokens.refresh_token,
expiresIn: tokens.expires_in,
scope: tokens.scope,
}),
},
codex: {
config: CODEX_CONFIG,
flowType: "authorization_code_pkce",
fixedPort: 1455,
callbackPath: "/auth/callback",
buildAuthUrl: (config, redirectUri, state, codeChallenge) => {
const params = {
response_type: "code",
client_id: config.clientId,
redirect_uri: redirectUri,
scope: config.scope,
code_challenge: codeChallenge,
code_challenge_method: config.codeChallengeMethod,
...config.extraParams,
state: state,
};
const queryString = Object.entries(params)
.map(([key, value]) => `${key}=${encodeURIComponent(value)}`)
.join("&");
return `${config.authorizeUrl}?${queryString}`;
},
exchangeToken: async (config, code, redirectUri, codeVerifier) => {
const response = await fetch(config.tokenUrl, {
method: "POST",
headers: {
"Content-Type": "application/x-www-form-urlencoded",
Accept: "application/json",
},
body: new URLSearchParams({
grant_type: "authorization_code",
client_id: config.clientId,
code: code,
redirect_uri: redirectUri,
code_verifier: codeVerifier,
}),
});
if (!response.ok) {
const error = await response.text();
throw new Error(`Token exchange failed: ${error}`);
}
return await response.json();
},
mapTokens: (tokens) => ({
accessToken: tokens.access_token,
refreshToken: tokens.refresh_token,
idToken: tokens.id_token,
expiresIn: tokens.expires_in,
}),
},
"gemini-cli": {
config: GEMINI_CONFIG,
flowType: "authorization_code",
buildAuthUrl: (config, redirectUri, state) => {
const params = new URLSearchParams({
client_id: config.clientId,
response_type: "code",
redirect_uri: redirectUri,
scope: config.scopes.join(" "),
state: state,
access_type: "offline",
prompt: "consent",
});
return `${config.authorizeUrl}?${params.toString()}`;
},
exchangeToken: async (config, code, redirectUri) => {
const response = await fetch(config.tokenUrl, {
method: "POST",
headers: {
"Content-Type": "application/x-www-form-urlencoded",
Accept: "application/json",
},
body: new URLSearchParams({
grant_type: "authorization_code",
client_id: config.clientId,
client_secret: config.clientSecret,
code: code,
redirect_uri: redirectUri,
}),
});
if (!response.ok) {
const error = await response.text();
throw new Error(`Token exchange failed: ${error}`);
}
return await response.json();
},
postExchange: async (tokens) => {
// Fetch user info
const userInfoRes = await fetch(`${GEMINI_CONFIG.userInfoUrl}?alt=json`, {
headers: { Authorization: `Bearer ${tokens.access_token}` },
});
const userInfo = userInfoRes.ok ? await userInfoRes.json() : {};
// Fetch project ID
let projectId = "";
try {
const projectRes = await fetch(
"https://cloudcode-pa.googleapis.com/v1internal:loadCodeAssist",
{
method: "POST",
headers: {
Authorization: `Bearer ${tokens.access_token}`,
"Content-Type": "application/json",
},
body: JSON.stringify({
metadata: { ideType: "IDE_UNSPECIFIED", platform: "PLATFORM_UNSPECIFIED", pluginType: "GEMINI" },
}),
}
);
if (projectRes.ok) {
const data = await projectRes.json();
projectId = data.cloudaicompanionProject?.id || data.cloudaicompanionProject || "";
}
} catch (e) {
console.log("Failed to fetch project ID:", e);
}
return { userInfo, projectId };
},
mapTokens: (tokens, extra) => ({
accessToken: tokens.access_token,
refreshToken: tokens.refresh_token,
expiresIn: tokens.expires_in,
scope: tokens.scope,
email: extra?.userInfo?.email,
projectId: extra?.projectId,
}),
},
antigravity: {
config: ANTIGRAVITY_CONFIG,
flowType: "authorization_code",
buildAuthUrl: (config, redirectUri, state) => {
const params = new URLSearchParams({
client_id: config.clientId,
response_type: "code",
redirect_uri: redirectUri,
scope: config.scopes.join(" "),
state: state,
access_type: "offline",
prompt: "consent",
});
return `${config.authorizeUrl}?${params.toString()}`;
},
exchangeToken: async (config, code, redirectUri) => {
const response = await fetch(config.tokenUrl, {
method: "POST",
headers: {
"Content-Type": "application/x-www-form-urlencoded",
Accept: "application/json",
},
body: new URLSearchParams({
grant_type: "authorization_code",
client_id: config.clientId,
client_secret: config.clientSecret,
code: code,
redirect_uri: redirectUri,
}),
});
if (!response.ok) {
const error = await response.text();
throw new Error(`Token exchange failed: ${error}`);
}
return await response.json();
},
postExchange: async (tokens) => {
// Fetch user info
const userInfoRes = await fetch(`${ANTIGRAVITY_CONFIG.userInfoUrl}?alt=json`, {
headers: { Authorization: `Bearer ${tokens.access_token}` },
});
const userInfo = userInfoRes.ok ? await userInfoRes.json() : {};
// Fetch project ID from loadCodeAssist
let projectId = "";
try {
const projectRes = await fetch(ANTIGRAVITY_CONFIG.loadCodeAssistEndpoint, {
method: "POST",
headers: {
Authorization: `Bearer ${tokens.access_token}`,
"Content-Type": "application/json",
"User-Agent": ANTIGRAVITY_CONFIG.loadCodeAssistUserAgent,
"X-Goog-Api-Client": ANTIGRAVITY_CONFIG.loadCodeAssistApiClient,
"Client-Metadata": ANTIGRAVITY_CONFIG.loadCodeAssistClientMetadata,
},
body: JSON.stringify({
metadata: { ideType: "IDE_UNSPECIFIED", platform: "PLATFORM_UNSPECIFIED", pluginType: "GEMINI" },
}),
});
if (projectRes.ok) {
const data = await projectRes.json();
projectId = data.cloudaicompanionProject?.id || data.cloudaicompanionProject || "";
}
} catch (e) {
console.log("Failed to fetch project ID:", e);
}
return { userInfo, projectId };
},
mapTokens: (tokens, extra) => ({
accessToken: tokens.access_token,
refreshToken: tokens.refresh_token,
expiresIn: tokens.expires_in,
scope: tokens.scope,
email: extra?.userInfo?.email,
projectId: extra?.projectId,
}),
},
iflow: {
config: IFLOW_CONFIG,
flowType: "authorization_code",
buildAuthUrl: (config, redirectUri, state) => {
const params = new URLSearchParams({
loginMethod: config.extraParams.loginMethod,
type: config.extraParams.type,
redirect: redirectUri,
state: state,
client_id: config.clientId,
});
return `${config.authorizeUrl}?${params.toString()}`;
},
exchangeToken: async (config, code, redirectUri) => {
// Create Basic Auth header
const basicAuth = Buffer.from(
`${config.clientId}:${config.clientSecret}`
).toString("base64");
const response = await fetch(config.tokenUrl, {
method: "POST",
headers: {
"Content-Type": "application/x-www-form-urlencoded",
Accept: "application/json",
Authorization: `Basic ${basicAuth}`,
},
body: new URLSearchParams({
grant_type: "authorization_code",
code: code,
redirect_uri: redirectUri,
client_id: config.clientId,
client_secret: config.clientSecret,
}),
});
if (!response.ok) {
const error = await response.text();
throw new Error(`Token exchange failed: ${error}`);
}
return await response.json();
},
postExchange: async (tokens) => {
// Fetch user info
const userInfoRes = await fetch(
`${IFLOW_CONFIG.userInfoUrl}?accessToken=${encodeURIComponent(tokens.access_token)}`,
{
headers: {
Accept: "application/json",
},
}
);
const result = userInfoRes.ok ? await userInfoRes.json() : {};
const userInfo = result.success ? result.data : {};
return { userInfo };
},
mapTokens: (tokens, extra) => ({
accessToken: tokens.access_token,
refreshToken: tokens.refresh_token,
expiresIn: tokens.expires_in,
apiKey: extra?.userInfo?.apiKey,
email: extra?.userInfo?.email || extra?.userInfo?.phone,
displayName: extra?.userInfo?.nickname || extra?.userInfo?.name,
}),
},
qwen: {
config: QWEN_CONFIG,
flowType: "device_code",
requestDeviceCode: async (config, codeChallenge) => {
const response = await fetch(config.deviceCodeUrl, {
method: "POST",
headers: {
"Content-Type": "application/x-www-form-urlencoded",
Accept: "application/json",
},
body: new URLSearchParams({
client_id: config.clientId,
scope: config.scope,
code_challenge: codeChallenge,
code_challenge_method: config.codeChallengeMethod,
}),
});
if (!response.ok) {
const error = await response.text();
throw new Error(`Device code request failed: ${error}`);
}
return await response.json();
},
pollToken: async (config, deviceCode, codeVerifier) => {
const response = await fetch(config.tokenUrl, {
method: "POST",
headers: {
"Content-Type": "application/x-www-form-urlencoded",
Accept: "application/json",
},
body: new URLSearchParams({
grant_type: "urn:ietf:params:oauth:grant-type:device_code",
client_id: config.clientId,
device_code: deviceCode,
code_verifier: codeVerifier,
}),
});
return {
ok: response.ok,
data: await response.json(),
};
},
mapTokens: (tokens) => ({
accessToken: tokens.access_token,
refreshToken: tokens.refresh_token,
expiresIn: tokens.expires_in,
providerSpecificData: { resourceUrl: tokens.resource_url },
}),
},
github: {
config: GITHUB_CONFIG,
flowType: "device_code",
requestDeviceCode: async (config) => {
const response = await fetch(config.deviceCodeUrl, {
method: "POST",
headers: {
"Content-Type": "application/x-www-form-urlencoded",
Accept: "application/json",
},
body: new URLSearchParams({
client_id: config.clientId,
scope: config.scopes,
}),
});
if (!response.ok) {
const error = await response.text();
throw new Error(`Device code request failed: ${error}`);
}
return await response.json();
},
pollToken: async (config, deviceCode) => {
const response = await fetch(config.tokenUrl, {
method: "POST",
headers: {
"Content-Type": "application/x-www-form-urlencoded",
Accept: "application/json",
},
body: new URLSearchParams({
client_id: config.clientId,
device_code: deviceCode,
grant_type: "urn:ietf:params:oauth:grant-type:device_code",
}),
});
// Handle response properly - if not ok, try to get error as text first
let data;
try {
data = await response.json();
} catch (e) {
// If response is not JSON, get as text
const text = await response.text();
data = { error: "invalid_response", error_description: text };
}
return {
ok: response.ok,
data: data,
};
},
postExchange: async (tokens) => {
// Get Copilot token using GitHub access token
const copilotRes = await fetch(GITHUB_CONFIG.copilotTokenUrl, {
headers: {
Authorization: `Bearer ${tokens.access_token}`,
Accept: "application/json",
"X-GitHub-Api-Version": GITHUB_CONFIG.apiVersion,
"User-Agent": GITHUB_CONFIG.userAgent,
},
});
const copilotToken = copilotRes.ok ? await copilotRes.json() : {};
// Get user info from GitHub
const userRes = await fetch(GITHUB_CONFIG.userInfoUrl, {
headers: {
Authorization: `Bearer ${tokens.access_token}`,
Accept: "application/json",
"X-GitHub-Api-Version": GITHUB_CONFIG.apiVersion,
"User-Agent": GITHUB_CONFIG.userAgent,
},
});
const userInfo = userRes.ok ? await userRes.json() : {};
return { copilotToken, userInfo };
},
mapTokens: (tokens, extra) => ({
accessToken: tokens.access_token,
refreshToken: tokens.refresh_token,
expiresIn: tokens.expires_in,
providerSpecificData: {
copilotToken: extra?.copilotToken?.token,
copilotTokenExpiresAt: extra?.copilotToken?.expires_at,
githubUserId: extra?.userInfo?.id,
githubLogin: extra?.userInfo?.login,
githubName: extra?.userInfo?.name,
githubEmail: extra?.userInfo?.email,
},
}),
},
};
/**
* Get provider handler
*/
export function getProvider(name) {
const provider = PROVIDERS[name];
if (!provider) {
throw new Error(`Unknown provider: ${name}`);
}
return provider;
}
/**
* Get all provider names
*/
export function getProviderNames() {
return Object.keys(PROVIDERS);
}
/**
* Generate auth data for a provider
*/
export function generateAuthData(providerName, redirectUri) {
const provider = getProvider(providerName);
const { codeVerifier, codeChallenge, state } = generatePKCE();
let authUrl;
if (provider.flowType === "device_code") {
// Device code flow doesn't have auth URL upfront
authUrl = null;
} else if (provider.flowType === "authorization_code_pkce") {
authUrl = provider.buildAuthUrl(provider.config, redirectUri, state, codeChallenge);
} else {
authUrl = provider.buildAuthUrl(provider.config, redirectUri, state);
}
return {
authUrl,
state,
codeVerifier,
codeChallenge,
redirectUri,
flowType: provider.flowType,
fixedPort: provider.fixedPort,
callbackPath: provider.callbackPath || "/callback",
};
}
/**
* Exchange code for tokens
*/
export async function exchangeTokens(providerName, code, redirectUri, codeVerifier, state) {
const provider = getProvider(providerName);
const tokens = await provider.exchangeToken(provider.config, code, redirectUri, codeVerifier, state);
let extra = null;
if (provider.postExchange) {
extra = await provider.postExchange(tokens);
}
return provider.mapTokens(tokens, extra);
}
/**
* Request device code (for device_code flow)
*/
export async function requestDeviceCode(providerName, codeChallenge) {
const provider = getProvider(providerName);
if (provider.flowType !== "device_code") {
throw new Error(`Provider ${providerName} does not support device code flow`);
}
return await provider.requestDeviceCode(provider.config, codeChallenge);
}
/**
* Poll for token (for device_code flow)
*/
export async function pollForToken(providerName, deviceCode, codeVerifier) {
const provider = getProvider(providerName);
if (provider.flowType !== "device_code") {
throw new Error(`Provider ${providerName} does not support device code flow`);
}
const result = await provider.pollToken(provider.config, deviceCode, codeVerifier);
if (result.ok) {
// For device code flows, success is only when we have an access token
if (result.data.access_token) {
// Call postExchange to get additional data (copilotToken, userInfo, etc.)
let extra = null;
if (provider.postExchange) {
extra = await provider.postExchange(result.data);
}
return { success: true, tokens: provider.mapTokens(result.data, extra) };
} else {
// Check if it's still pending authorization
if (result.data.error === 'authorization_pending' || result.data.error === 'slow_down') {
// This is not a failure, just still waiting
return {
success: false,
error: result.data.error,
errorDescription: result.data.error_description || result.data.message,
pending: result.data.error === 'authorization_pending'
};
} else {
// Actual error
return {
success: false,
error: result.data.error || 'no_access_token',
errorDescription: result.data.error_description || result.data.message || 'No access token received'
};
}
}
}
return { success: false, error: result.data.error, errorDescription: result.data.error_description };
}