123 lines
2.7 KiB
Go
123 lines
2.7 KiB
Go
//
|
|
// Copyright (c) 2018
|
|
// Mainflux
|
|
//
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
//
|
|
|
|
package http
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"errors"
|
|
"fmt"
|
|
"io"
|
|
"net/http"
|
|
|
|
kithttp "github.com/go-kit/kit/transport/http"
|
|
"github.com/go-zoo/bone"
|
|
"github.com/mainflux/mainflux"
|
|
log "github.com/mainflux/mainflux/logger"
|
|
"github.com/mainflux/mainflux/users"
|
|
"github.com/prometheus/client_golang/prometheus/promhttp"
|
|
)
|
|
|
|
const contentType = "application/json"
|
|
|
|
var (
|
|
errUnsupportedContentType = errors.New("unsupported content type")
|
|
logger log.Logger
|
|
)
|
|
|
|
// MakeHandler returns a HTTP handler for API endpoints.
|
|
func MakeHandler(svc users.Service, l log.Logger) http.Handler {
|
|
logger = l
|
|
|
|
opts := []kithttp.ServerOption{
|
|
kithttp.ServerErrorEncoder(encodeError),
|
|
}
|
|
|
|
mux := bone.New()
|
|
|
|
mux.Post("/users", kithttp.NewServer(
|
|
registrationEndpoint(svc),
|
|
decodeCredentials,
|
|
encodeResponse,
|
|
opts...,
|
|
))
|
|
|
|
mux.Post("/tokens", kithttp.NewServer(
|
|
loginEndpoint(svc),
|
|
decodeCredentials,
|
|
encodeResponse,
|
|
opts...,
|
|
))
|
|
|
|
mux.GetFunc("/version", mainflux.Version("users"))
|
|
mux.Handle("/metrics", promhttp.Handler())
|
|
|
|
return mux
|
|
}
|
|
|
|
func decodeCredentials(_ context.Context, r *http.Request) (interface{}, error) {
|
|
if r.Header.Get("Content-Type") != contentType {
|
|
logger.Warn("Invalid or missing content type.")
|
|
return nil, errUnsupportedContentType
|
|
}
|
|
|
|
var user users.User
|
|
if err := json.NewDecoder(r.Body).Decode(&user); err != nil {
|
|
logger.Warn(fmt.Sprintf("Failed to decode user credentials: %s", err))
|
|
return nil, err
|
|
}
|
|
|
|
return userReq{user}, nil
|
|
}
|
|
|
|
func encodeResponse(_ context.Context, w http.ResponseWriter, response interface{}) error {
|
|
w.Header().Set("Content-Type", contentType)
|
|
|
|
if ar, ok := response.(mainflux.Response); ok {
|
|
for k, v := range ar.Headers() {
|
|
w.Header().Set(k, v)
|
|
}
|
|
|
|
w.WriteHeader(ar.Code())
|
|
|
|
if ar.Empty() {
|
|
return nil
|
|
}
|
|
}
|
|
|
|
return json.NewEncoder(w).Encode(response)
|
|
}
|
|
|
|
func encodeError(_ context.Context, err error, w http.ResponseWriter) {
|
|
w.Header().Set("Content-Type", contentType)
|
|
|
|
switch err {
|
|
case users.ErrMalformedEntity:
|
|
w.WriteHeader(http.StatusBadRequest)
|
|
case users.ErrUnauthorizedAccess:
|
|
w.WriteHeader(http.StatusForbidden)
|
|
case users.ErrConflict:
|
|
w.WriteHeader(http.StatusConflict)
|
|
case errUnsupportedContentType:
|
|
w.WriteHeader(http.StatusUnsupportedMediaType)
|
|
case io.ErrUnexpectedEOF:
|
|
w.WriteHeader(http.StatusBadRequest)
|
|
case io.EOF:
|
|
w.WriteHeader(http.StatusBadRequest)
|
|
default:
|
|
switch err.(type) {
|
|
case *json.SyntaxError:
|
|
w.WriteHeader(http.StatusBadRequest)
|
|
case *json.UnmarshalTypeError:
|
|
w.WriteHeader(http.StatusBadRequest)
|
|
default:
|
|
w.WriteHeader(http.StatusInternalServerError)
|
|
}
|
|
}
|
|
}
|