Vert.x-Pac4j
A security library for Vert.x applications providing authentication, authorization, and advanced security features via multiple protocols.
What is Vert.x-Pac4j?
vertx-pac4j is a security library for Vert.x applications that handles authentication, authorization, logout, and advanced security features like CSRF protection. It integrates with multiple identity providers and protocols, providing a unified way to secure web applications and services. It solves the complexity of implementing robust security mechanisms in reactive Java applications.
Java developers building secure web applications or services with Vert.x, especially those needing multi-protocol authentication (e.g., OAuth, SAML) and fine-grained authorization controls.
Developers choose vertx-pac4j for its extensive protocol support, seamless Vert.x integration, and reliance on the battle-tested pac4j engine, reducing the effort to implement enterprise-grade security in reactive applications.
Overview
Security library for Vert.x: OpenID Connect, SAML2, CAS, OAuth, LDAP, JWT...
Use Cases
Best For
- Securing Vert.x web applications with OpenID Connect or SAML2 authentication
- Implementing OAuth-based login flows in reactive Java services
- Adding role-based access control (RBAC) to Vert.x APIs
- Enabling single sign-on (SSO) across multiple Vert.x microservices
- Protecting web applications from CSRF attacks with built-in mechanisms
- Integrating LDAP or JWT-based authentication in Vert.x projects
Not Ideal For
- Projects not using Vert.x or stuck on older Java versions (pre-17)
- Applications needing only basic HTTP auth without multi-protocol support
- Teams preferring convention-over-configuration frameworks with minimal setup
- Simple prototypes where comprehensive security is overkill
Pros & Cons
Pros
Supports OpenID Connect, SAML2, CAS, OAuth, LDAP, JWT, and more, allowing flexible integration with diverse identity providers as listed in the README.
Includes built-in authorizers for roles, permissions, CSRF protection, CORS, security headers, and IP/method checks, providing robust security out of the box.
Designed specifically for Vert.x 5.0, leveraging its reactive architecture for efficient performance in web applications and services.
Built on the pac4j security engine, ensuring consistency and extensibility across authentication and authorization workflows, as highlighted in the philosophy.
Cons
Requires defining separate security, callback, and logout configurations, which can be intricate and time-consuming, as indicated in the usage steps.
Tied to Java 17 and Vert.x 5.0, making it incompatible with projects on older versions without significant migration effort.
Developers must grasp pac4j concepts like clients, authorizers, and matchers, adding overhead compared to simpler, more focused security libraries.
Frequently Asked Questions
Related Projects
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Vert.x Auth Mongo<img src="vertx-favicon.svg" alt="(stack)" title="Vert.x Stack" height="16px"> - Vert.x Authorisation/Authentication based on MongoDB
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