94 lines
2.0 KiB
Go
94 lines
2.0 KiB
Go
// +build ignore
|
|
|
|
package main
|
|
|
|
import (
|
|
"crypto/sha512"
|
|
"crypto/tls"
|
|
"crypto/x509"
|
|
"crypto/x509/pkix"
|
|
"fmt"
|
|
"log"
|
|
"time"
|
|
|
|
"git.sr.ht/~adnano/go-gemini"
|
|
)
|
|
|
|
type User struct {
|
|
Name string
|
|
}
|
|
|
|
var (
|
|
// Map of certificate hashes to users
|
|
users = map[string]*User{}
|
|
)
|
|
|
|
func main() {
|
|
var mux gemini.ServeMux
|
|
mux.HandleFunc("/", profile)
|
|
mux.HandleFunc("/username", changeUsername)
|
|
mux.HandleFunc("/delete", deleteAccount)
|
|
|
|
var server gemini.Server
|
|
if err := server.Certificates.Load("/var/lib/gemini/certs"); err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
server.CreateCertificate = func(hostname string) (tls.Certificate, error) {
|
|
return gemini.CreateCertificate(gemini.CertificateOptions{
|
|
Subject: pkix.Name{
|
|
CommonName: hostname,
|
|
},
|
|
DNSNames: []string{hostname},
|
|
Duration: time.Hour,
|
|
})
|
|
}
|
|
server.Register("localhost", &mux)
|
|
|
|
if err := server.ListenAndServe(); err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
}
|
|
|
|
func fingerprint(cert *x509.Certificate) string {
|
|
b := sha512.Sum512(cert.Raw)
|
|
return string(b[:])
|
|
}
|
|
|
|
func profile(w *gemini.ResponseWriter, r *gemini.Request) {
|
|
if r.Certificate == nil {
|
|
w.WriteStatus(gemini.StatusCertificateRequired)
|
|
return
|
|
}
|
|
fingerprint := fingerprint(r.Certificate.Leaf)
|
|
user, ok := users[fingerprint]
|
|
if !ok {
|
|
user = &User{}
|
|
users[fingerprint] = user
|
|
}
|
|
fmt.Fprintln(w, "Username:", user.Name)
|
|
fmt.Fprintln(w, "=> /username Change username")
|
|
fmt.Fprintln(w, "=> /delete Delete account")
|
|
}
|
|
|
|
func changeUsername(w *gemini.ResponseWriter, r *gemini.Request) {
|
|
if r.Certificate == nil {
|
|
w.WriteStatus(gemini.StatusCertificateRequired)
|
|
return
|
|
}
|
|
|
|
username, ok := gemini.Input(r)
|
|
if !ok {
|
|
w.WriteHeader(gemini.StatusInput, "Username")
|
|
return
|
|
}
|
|
users[fingerprint(r.Certificate.Leaf)].Name = username
|
|
fmt.Fprintln(w, "Successfully changed username")
|
|
}
|
|
|
|
func deleteAccount(w *gemini.ResponseWriter, r *gemini.Request) {
|
|
if r.Certificate != nil {
|
|
delete(users, fingerprint(r.Certificate.Leaf))
|
|
}
|
|
fmt.Fprintln(w, "Account deleted")
|
|
}
|