poc #388
poc #388
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Summary of ChangesHello @ruchI9897, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed! This pull request enhances the authentication system by introducing a proactive token refresh mechanism. It adds a new event to notify when an authentication token is about to expire and implements logic to automatically acquire a fresh token, particularly for cookieless trusted authentication scenarios. This change aims to improve the user experience by preventing session interruptions due to expired tokens. Highlights
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Code Review
This pull request introduces a mechanism for proactively refreshing authentication tokens by adding a TokenExpiringSoon event and its handler. The getAuthenticationToken function is also updated to support skipping cache validation. My review identified a critical logical bug in the new tokenExpiringSoon handler that would cause it to incorrectly signal an authentication failure even on success. I've also pointed out an un-awaited asynchronous call and a naming convention issue, providing suggestions to address them.
src/embed/ts-embed.ts
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| private tokenExpiringSoon = async (_: any, responder: any) => { | ||
| const { authType } = this.embedConfig; | ||
| let { autoLogin } = this.embedConfig; | ||
| // Default autoLogin: true for cookieless if undefined/null, otherwise | ||
| // false | ||
| autoLogin = autoLogin ?? (authType === AuthType.TrustedAuthTokenCookieless); | ||
| if (autoLogin && authType === AuthType.TrustedAuthTokenCookieless) { | ||
| try { | ||
| const authToken = await getAuthenticationToken(this.embedConfig, true); | ||
| responder({ | ||
| type: EmbedEvent.AuthExpire, | ||
| data: { authToken }, | ||
| }); | ||
| } catch (e) { | ||
| logger.error(`${ERROR_MESSAGE.INVALID_TOKEN_ERROR} Error : ${e?.message}`); | ||
| processAuthFailure(e, this.isPreRendered ? this.preRenderWrapper : this.el); | ||
| } | ||
| } else if (autoLogin) { | ||
| handleAuth(); | ||
| } | ||
| notifyAuthFailure(AuthFailureType.EXPIRY); | ||
| } |
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The new tokenExpiringSoon method has a few issues:
-
Unconditional Failure Notification (Critical): It unconditionally calls
notifyAuthFailure(AuthFailureType.EXPIRY)at the end. This is incorrect as it signals an authentication failure even when the token refresh is successful. This call should only happen ifautoLoginis disabled or if the refresh fails. -
Un-awaited Asynchronous Call (High): The call to
handleAuth()is notawaited. SincehandleAuthis an async function, this will lead to a race condition wherenotifyAuthFailureis called before authentication completes. -
Code Duplication (Medium): This method is almost identical to the existing
updateAuthTokenmethod. This duplication should be avoided by refactoring the common logic into a shared private method.
Here is a suggested fix that addresses the critical and high severity issues:
private tokenExpiringSoon = async (_: any, responder: any) => {
const { authType } = this.embedConfig;
let { autoLogin } = this.embedConfig;
// Default autoLogin: true for cookieless if undefined/null, otherwise
// false
autoLogin = autoLogin ?? (authType === AuthType.TrustedAuthTokenCookieless);
if (autoLogin) {
if (authType === AuthType.TrustedAuthTokenCookieless) {
try {
const authToken = await getAuthenticationToken(this.embedConfig, true);
responder({
type: EmbedEvent.AuthExpire,
data: { authToken },
});
} catch (e) {
logger.error(`${ERROR_MESSAGE.INVALID_TOKEN_ERROR} Error : ${e?.message}`);
processAuthFailure(e, this.isPreRendered ? this.preRenderWrapper : this.el);
}
} else {
await handleAuth();
}
} else {
notifyAuthFailure(AuthFailureType.EXPIRY);
}
}| export async function getAuthenticationToken(embedConfig: EmbedConfig, skipvalidation: boolean = false): Promise<string> { | ||
| const cachedAuthToken = getCacheAuthToken(); | ||
| // Since we don't have token validation enabled , we cannot tell if the | ||
| // cached token is valid or not. So we will always fetch a new token. | ||
| if (cachedAuthToken && !embedConfig.disableTokenVerification) { | ||
| if (cachedAuthToken && !embedConfig.disableTokenVerification && !skipvalidation) { |
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The parameter name skipvalidation does not follow the camelCase naming convention used throughout the codebase (e.g., disableTokenVerification, cachedAuthToken). For consistency and better readability, it should be renamed to skipValidation.
| export async function getAuthenticationToken(embedConfig: EmbedConfig, skipvalidation: boolean = false): Promise<string> { | |
| const cachedAuthToken = getCacheAuthToken(); | |
| // Since we don't have token validation enabled , we cannot tell if the | |
| // cached token is valid or not. So we will always fetch a new token. | |
| if (cachedAuthToken && !embedConfig.disableTokenVerification) { | |
| if (cachedAuthToken && !embedConfig.disableTokenVerification && !skipvalidation) { | |
| export async function getAuthenticationToken(embedConfig: EmbedConfig, skipValidation: boolean = false): Promise<string> { | |
| const cachedAuthToken = getCacheAuthToken(); | |
| // Since we don't have token validation enabled , we cannot tell if the | |
| // cached token is valid or not. So we will always fetch a new token. | |
| if (cachedAuthToken && !embedConfig.disableTokenVerification && !skipValidation) { |
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