A Go WAF (Web Application Firewall) that sits between your webserver (nginx) and your FastCGI application.
nginx <- (tcp) -> gowafp <- (FastCGI) -> PHP-FPM
The goal of this package is to prevent any attacks from reaching the FastCGI application. It should block all SQL injection attempts and filter XSS attempts. Maybe down the road it could also handle CSRF.
The Application and the Web Application Firewall should not be on different servers. While the services out there do a good job, they're expensive and slower. Of course, you could recompile your web server with some additional features, but that is harder to deploy while scaling.
First, you need to have Go get the repo.
go get github.com/levidurfee/gowafp
Below is simple main.go
example.
package main
import (
"github.com/levidurfee/gowafp"
"log"
"net/http"
)
func main() {
http.Handle("/", gowafp.AnalyzeRequest(gowafp.PhpHandler("/app/index.php", "tcp", "127.0.0.1:9000")))
log.Fatal(http.ListenAndServe(":8080", nil))
}
Then build and run it.
go build main.go
./main