// For the user sign in.
func signinHandler(w http.ResponseWriter, req *http.Request) {
id, password, err := getRequiredDatas(req)
defer req.Body.Close()
if err != nil {
http.Error(w, ERROR_BAD_REQUEST, http.StatusBadRequest)
return
}
id = append([]byte(PREFIX_USER), id[0:]...)
lbs, err := leveldb.Get(id)
if err != nil {
http.Error(w, ERROR_SERVER_INTERNAL, http.StatusInternalServerError)
return
}
if bytes.Equal(lbs, password) {
fmt.Println(string(id[len([]byte(PREFIX_USER)):]))
token, err := jwt.NewToken(string(id[len([]byte(PREFIX_USER)):]), string(secret))
if err != nil {
http.Error(w, ERROR_SERVER_INTERNAL, http.StatusInternalServerError)
return
}
w.Write([]byte(token))
} else {
w.WriteHeader(http.StatusNotAcceptable)
}
}
// For the user sign up.
func signupHandler(w http.ResponseWriter, req *http.Request) {
// Parse the username and password from the request body
id, password, err := getRequiredDatas(req)
defer req.Body.Close()
// if error is not a nil
// end the function immediately after sending the response
if err != nil {
http.Error(w, ERROR_BAD_REQUEST, http.StatusBadRequest)
return
}
// append the prefix
id = append([]byte(PREFIX_USER), id[0:]...)
// check if the username have been used
lbs, err := leveldb.Get(id)
if err != nil {
http.Error(w, ERROR_SERVER_INTERNAL, http.StatusInternalServerError)
return
}
// if the username is not used
if len(lbs) == 0 {
err := leveldb.Put(id, password)
if err != nil {
http.Error(w, ERROR_SERVER_INTERNAL, http.StatusInternalServerError)
return
}
// make the token for the response
// the token only include the username and the hash which for use by the validator
token, err := jwt.NewToken(string(id[len([]byte(PREFIX_USER)):]), string(secret))
if err != nil {
http.Error(w, ERROR_SERVER_INTERNAL, http.StatusInternalServerError)
return
}
w.Write([]byte(token))
} else {
w.WriteHeader(http.StatusNotAcceptable)
}
}