HTTP Basic Authentication

Authenticate HTTP requests using HTTP Basic Auth

HTTP Basic Authentication is a simple authentication mechanism for HTTP requests where credentials are sent in the Authorization header. Radiator Server supports HTTP Basic Auth through the http-basic-auth action, which can be used to validate user credentials.

Basic Configuration

Here's a complete working example using a JSON file backend for user storage with access logging:

# HTTP server with Basic Authentication using jsonfile backend

include "%{env.RADIATOR_COMMON}/license.conf";

# Logging configuration
logging {
    application {
        file {
            loglevel debug;
            filename "<cwd>/radiator-server.log";
        }
    }

    aaa {
        logger "HTTP_LOG" {
            file {
                filename "<cwd>/http-server.log";
            }
        }
    }
}

# JSON file backend for user authentication
backends {
    jsonfile "USERS_DB" {
        filename "<cwd>/users.json";
        monitor false;

        query "find_user" {
            mapping {
                user.username = doc | jsonpath("$.users[?(@.username == '%{aaa.identity}')].username");
                user.password = doc | jsonpath("$.users[?(@.username == '%{aaa.identity}')].password");
            }
        }
    }
}

# HTTP clients
clients {
    http "API_CLIENTS" {
        client "LOCAL" {
            source {
                ip 127.0.0.1;
                ip ::1;
            }
        }
    }
}

# HTTP server with Basic Auth
servers {
    http "API_SERVER" {
        listen {
            protocol tcp;
            ip 127.0.0.1;
            port 8080;
        }

        clients "API_CLIENTS";
    }
}

# AAA configuration
aaa {
    pipeline "LOG_HTTP_REQUEST" {
        log "HTTP_LOG" {
            json {
                "timestamp" datetime.timestamp;
                "client_ip" http.client.ip;
                "username" aaa.identity;
                "method" http.method;
                "path" http.path;
                "status" http.status;
            }
        }
    }

    policy "DEFAULT" {
        # Public health check - no auth required
        handler "HEALTH" {
            conditions all {
                http.method == "GET";
                http.path == "/health";
            }

            authentication {
                modify { http.response.status = "ok"; }
                accept;
            }

            final-authentication {
                invoke "LOG_HTTP_REQUEST";
            }
        }

        # Protected endpoint - requires Basic Auth
        handler "PROTECTED" {
            conditions all {
                http.method == "GET";
                http.path == "/api/protected";
            }

            authentication {
                # Look up user from JSON file (aaa.identity is set from HTTP Basic Auth)
                backend { name "USERS_DB"; query "find_user"; }

                # Authenticate using HTTP Basic Auth (compares passwords)
                http-basic-auth;
            }

            post-authentication {
                modify {
                    http.response.authenticated = true;
                    http.response.username = aaa.identity;
                    http.response.message = "Welcome!";
                }
                accept;
            }

            final-authentication {
                invoke "LOG_HTTP_REQUEST";
            }
        }

        # Default handler - 404
        handler "NOT_FOUND" {
            authentication {
                reject;
            }

            final-authentication {
                invoke "LOG_HTTP_REQUEST";
            }
        }
    }
}
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