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handler.go
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/
handler.go
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package main
import (
"encoding/json"
"fmt"
"github.com/tonkeeper/tongo"
"io"
"net/http"
"time"
"github.com/golang-jwt/jwt"
"github.com/labstack/echo/v4"
log "github.com/sirupsen/logrus"
"github.com/tonkeeper/tonproof/datatype"
)
type jwtCustomClaims struct {
Address string `json:"address"`
jwt.StandardClaims
}
type handler struct {
sharedSecret string
payloadTtl time.Duration
}
func newHandler(sharedSecret string, payloadTtl time.Duration) *handler {
h := handler{
sharedSecret: sharedSecret,
payloadTtl: payloadTtl,
}
return &h
}
func (h *handler) ProofHandler(c echo.Context) error {
ctx := c.Request().Context()
log := log.WithContext(ctx).WithField("prefix", "ProofHandler")
b, err := io.ReadAll(c.Request().Body)
if err != nil {
return c.JSON(HttpResErrorWithLog(err.Error(), http.StatusBadRequest, log))
}
var tp datatype.TonProof
err = json.Unmarshal(b, &tp)
if err != nil {
return c.JSON(HttpResErrorWithLog(err.Error(), http.StatusBadRequest, log))
}
// check payload
err = checkPayload(tp.Proof.Payload, h.sharedSecret)
if err != nil {
return c.JSON(HttpResErrorWithLog("payload verification failed: "+err.Error(), http.StatusBadRequest, log))
}
parsed, err := ConvertTonProofMessage(ctx, &tp)
if err != nil {
return c.JSON(HttpResErrorWithLog(err.Error(), http.StatusBadRequest, log))
}
net := networks[tp.Network]
if net == nil {
return c.JSON(HttpResErrorWithLog(fmt.Sprintf("undefined network: %v", tp.Network), http.StatusBadRequest, log))
}
addr, err := tongo.ParseAccountID(tp.Address)
if err != nil {
return c.JSON(HttpResErrorWithLog(fmt.Sprintf("invalid account: %v", tp.Address), http.StatusBadRequest, log))
}
check, err := CheckProof(ctx, addr, net, parsed)
if err != nil {
return c.JSON(HttpResErrorWithLog("proof checking error: "+err.Error(), http.StatusBadRequest, log))
}
if !check {
return c.JSON(HttpResErrorWithLog("proof verification failed", http.StatusBadRequest, log))
}
claims := &jwtCustomClaims{
tp.Address,
jwt.StandardClaims{
ExpiresAt: time.Now().AddDate(10, 0, 0).Unix(),
},
}
token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
t, err := token.SignedString([]byte(h.sharedSecret))
if err != nil {
return err
}
return c.JSON(http.StatusOK, echo.Map{
"token": t,
})
}
func (h *handler) PayloadHandler(c echo.Context) error {
log := log.WithContext(c.Request().Context()).WithField("prefix", "PayloadHandler")
payload, err := generatePayload(h.sharedSecret, h.payloadTtl)
if err != nil {
c.JSON(HttpResErrorWithLog(err.Error(), http.StatusBadRequest, log))
}
return c.JSON(http.StatusOK, echo.Map{
"payload": payload,
})
}
func (h *handler) GetAccountInfo(c echo.Context) error {
ctx := c.Request().Context()
log := log.WithContext(ctx).WithField("prefix", "GetAccountInfo")
user := c.Get("user").(*jwt.Token)
claims := user.Claims.(*jwtCustomClaims)
addr, err := tongo.ParseAccountID(claims.Address)
if err != nil {
return c.JSON(HttpResErrorWithLog(fmt.Sprintf("can't parse acccount: %v", claims.Address), http.StatusBadRequest, log))
}
net := networks[c.QueryParam("network")]
if net == nil {
return c.JSON(HttpResErrorWithLog(fmt.Sprintf("undefined network: %v", c.QueryParam("network")), http.StatusBadRequest, log))
}
address, err := GetAccountInfo(c.Request().Context(), addr, net)
if err != nil {
return c.JSON(HttpResErrorWithLog(fmt.Sprintf("get account info error: %v", err), http.StatusBadRequest, log))
}
return c.JSON(http.StatusOK, address)
}