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109 changes: 28 additions & 81 deletions package-lock.json

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2 changes: 1 addition & 1 deletion package.json
Original file line number Diff line number Diff line change
Expand Up @@ -94,7 +94,7 @@
"typescript": "~5.6.2"
},
"optionalDependencies": {
"openid-client": "^5.3.0"
"openid-client": "^6.1.3"
},
"bugs": {
"url": "https://github.com/kubernetes-client/javascript/issues"
Expand Down
38 changes: 32 additions & 6 deletions src/oidc_auth.ts
Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
import https = require('https');
import { Client, ClientMetadata, Issuer } from 'openid-client';
import * as oidc from 'openid-client';
import { ClientMetadata } from 'openid-client';
import request = require('request');
import { base64url } from 'rfc4648';
import { TextDecoder } from 'util';
Expand All @@ -13,6 +14,29 @@ interface JwtObj {
signature: string;
}

interface Token {
id_token: string;
refresh_token: string;
expires_at: number;
}

interface Client {
refresh(token: string): Promise<Token>;
}

class OidcClient implements Client {
public constructor(readonly config: oidc.Configuration) {}

public async refresh(token: string): Promise<Token> {
const newToken = await oidc.refreshTokenGrant(this.config, token);
return {
id_token: newToken.id_token,
refresh_token: newToken.refresh_token,
expires_at: newToken.expiresIn(),
} as Token;
}
}

export class OpenIDConnectAuth implements Authenticator {
public static decodeJWT(token: string): JwtObj | null {
const parts = token.split('.');
Expand Down Expand Up @@ -97,22 +121,24 @@ export class OpenIDConnectAuth implements Authenticator {
const newToken = await client.refresh(user.authProvider.config['refresh-token']);
user.authProvider.config['id-token'] = newToken.id_token;
user.authProvider.config['refresh-token'] = newToken.refresh_token;
this.currentTokenExpiration = newToken.expires_at || 0;
this.currentTokenExpiration = newToken.expires_at;
}
return user.authProvider.config['id-token'];
}

private async getClient(user: User): Promise<Client> {
const oidcIssuer = await Issuer.discover(user.authProvider.config['idp-issuer-url']);
const metadata: ClientMetadata = {
client_id: user.authProvider.config['client-id'],
client_secret: user.authProvider.config['client-secret'],
};

if (!user.authProvider.config['client-secret']) {
metadata.token_endpoint_auth_method = 'none';
}

return new oidcIssuer.Client(metadata);
const configuration = await oidc.discovery(
user.authProvider.config['idp-issuer-url'],
user.authProvider.config['client-id'],
metadata,
);
return new OidcClient(configuration);
}
}
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