Download the PHP package lithemod/jwt without Composer
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Package jwt
Short Description A lightweight JWT authentication library for Lithe framework, providing secure token generation, validation, and middleware integration.
License MIT
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Informations about the package jwt
Lithe Auth JWT
The JWT middleware for Lithe is responsible for user authentication, providing secure token generation, validation, and revocation.
1. Installing the JWT Middleware
To use the JWT middleware in Lithe, install via Composer:
2. Configuring the JWT Middleware
You can use the middleware directly in your routes. Here's how:
Configuration Example:
3. Using JWT Tokens
3.1 Generating a JWT Token
Generate a JWT token for an authenticated user. The token will contain relevant information such as user ID and role.
3.2 Validating a JWT Token
Use the JWT middleware to protect routes. The middleware will check the token validity on each request.
3.3 Revoking a Token
Revoke a token when a user logs out. This ensures the token can no longer be used.
3.4 Refreshing a Token
Implement an endpoint for token refresh, allowing users to obtain a new token without needing to log in again.
3.5 Retrieving User Data from the Token
Extract user information from the JWT for use in protected routes.
3.6 Validating a Token without Decoding
Validate a token without fully decoding it. This can be useful for quickly checking the authenticity of a token.
4. Methods of the JWT Class
4.1 __construct()
Description: Initializes the JWT class with a secret key, algorithm, and expiration time.
Parameters:
$secretKey: Secret key for encoding/decoding.$algorithm: Algorithm for signing the token.$expirationTime: Token expiration time in seconds.
4.2 __invoke()
Description: Middleware to check the JWT in a request.
Parameters:
$req: The HTTP request.$res: The HTTP response.$next: Next middleware function to call.
4.3 generateToken()
Description: Generates a new JWT token for a user.
Parameters:
$user: User data to encode in the token.
4.4 revokeToken()
Description: Revokes a JWT token by adding it to the revoked list.
Parameters:
$token: The token to revoke.
4.5 isTokenRevoked()
Description: Checks if a token has been revoked.
Parameters:
$token: The token to check.
4.6 refreshToken()
Description: Updates an expired JWT token by generating a new one.
Parameters:
$token: The token to refresh.
4.7 getUserFromToken()
Description: Retrieves user data from a JWT token.
Parameters:
$token: The token from which to get user data.
4.8 validateToken()
Description: Validates a JWT token without decoding it.
Parameters:
$token: The token to validate.
Final Considerations
- Token Revocation: The middleware supports token revocation.
- Error Handling: Validation errors and token expiration are automatically handled, returning appropriate messages to the client.
