pki.go

package server

import (
	"net/http"

	"github.com/julienschmidt/httprouter"
	apirouter "github.com/mrz1836/go-api-router"
	"github.com/tonicpow/go-paymail"
)

// showPKI will return the public key information for the corresponding paymail address
//
// Specs: http://bsvalias.org/03-public-key-infrastructure.html
func showPKI(w http.ResponseWriter, req *http.Request, _ httprouter.Params) {

	// Get the params & paymail address submitted via URL request
	params := apirouter.GetParams(req)
	incomingPaymail := params.GetString("paymailAddress")

	// Parse, sanitize and basic validation
	alias, domain, address := paymail.SanitizePaymail(incomingPaymail)
	if len(address) == 0 {
		ErrorResponse(w, req, ErrorInvalidParameter, "invalid paymail: "+incomingPaymail, http.StatusBadRequest)
		return
	} else if domain != paymailDomain {
		ErrorResponse(w, req, ErrorUnknownDomain, "domain unknown: "+domain, http.StatusBadRequest)
		return
	}

	// todo: lookup the paymail address in a data-store, database, etc - get the PubKey (return 404 if not found)

	// todo: add caching for fast responses since the pubkey will not change

	// Find in mock database
	foundPaymail := getPaymailByAlias(alias)
	if foundPaymail == nil {
		ErrorResponse(w, req, ErrorPaymailNotFound, "paymail not found", http.StatusNotFound)
		return
	}

	// Return the response
	apirouter.ReturnResponse(w, req, http.StatusOK, &paymail.PKI{
		BsvAlias: paymail.DefaultBsvAliasVersion,
		Handle:   address,
		PubKey:   foundPaymail.PubKey,
	})
}