telebit/mplexer/cmd/mgmt/acmeroutes.go

100 lines
2.6 KiB
Go

package main
import (
"encoding/json"
"fmt"
"net/http"
"strings"
"github.com/go-acme/lego/v3/challenge"
"github.com/go-chi/chi"
)
// A Challenge has the data necessary to create an ACME DNS-01 Key Authorization Digest.
type Challenge struct {
Domain string `json:"domain"`
Token string `json:"token"`
KeyAuth string `json:"key_authorization"`
error chan error
}
type acmeProvider struct {
BaseURL string
provider challenge.Provider
}
func (p *acmeProvider) Present(domain, token, keyAuth string) error {
return p.provider.Present(domain, token, keyAuth)
}
func (p *acmeProvider) CleanUp(domain, token, keyAuth string) error {
return p.provider.CleanUp(domain, token, keyAuth)
}
func handleDNSRoutes(r chi.Router) {
r.Route("/dns", func(r chi.Router) {
r.Post("/{domain}", func(w http.ResponseWriter, r *http.Request) {
domain := chi.URLParam(r, "domain")
ctx := r.Context()
claims, ok := ctx.Value(MWKey("claims")).(*MgmtClaims)
if !ok || !strings.HasPrefix(domain+".", claims.Slug) {
msg := `{ "error": "invalid domain" }`
http.Error(w, msg+"\n", http.StatusUnprocessableEntity)
return
}
ch := Challenge{}
// TODO prevent slow loris
decoder := json.NewDecoder(r.Body)
err := decoder.Decode(&ch)
if nil != err || "" == ch.Token || "" == ch.KeyAuth {
msg := `{"error":"expected json in the format {\"token\":\"xxx\",\"key_authorization\":\"yyy\"}"}`
http.Error(w, msg, http.StatusUnprocessableEntity)
return
}
//domain := chi.URLParam(r, "*")
ch.Domain = domain
// TODO some additional error checking before the handoff
//ch.error = make(chan error, 1)
ch.error = make(chan error)
presenters <- &ch
err = <-ch.error
if nil != err || "" == ch.Token || "" == ch.KeyAuth {
fmt.Println("presenter err", err, ch.Token, ch.KeyAuth)
msg := `{"error":"ACME dns-01 error"}`
http.Error(w, msg, http.StatusUnprocessableEntity)
return
}
w.Write([]byte("{\"success\":true}\n"))
})
// TODO ugly Delete, but whatever
r.Delete("/{domain}/{token}/{keyAuth}", func(w http.ResponseWriter, r *http.Request) {
// TODO authenticate
ch := Challenge{
Domain: chi.URLParam(r, "domain"),
Token: chi.URLParam(r, "token"),
KeyAuth: chi.URLParam(r, "keyAuth"),
error: make(chan error),
//error: make(chan error, 1),
}
cleanups <- &ch
err := <-ch.error
if nil != err || "" == ch.Token || "" == ch.KeyAuth {
msg := `{"error":"expected json in the format {\"token\":\"xxx\",\"key_authorization\":\"yyy\"}"}`
http.Error(w, msg, http.StatusUnprocessableEntity)
return
}
w.Write([]byte("{\"success\":true}\n"))
})
})
}