/
rest.go
341 lines (292 loc) · 8.03 KB
/
rest.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
package server
import (
"fmt"
"net/http"
"strconv"
"github.com/labstack/echo"
"github.com/shirasudon/go-chat/chat"
"github.com/shirasudon/go-chat/chat/action"
)
var (
// ErrAPIRequireLoginFirst indicates that unauthenticated error message with htto status code.
ErrAPIRequireLoginFirst = NewHTTPError(http.StatusForbidden, "require login first")
)
type RESTHandler struct {
chatCmd chat.CommandService
chatQuery chat.QueryService
}
func NewRESTHandler(chatCmd chat.CommandService, chatQuery chat.QueryService) *RESTHandler {
return &RESTHandler{
chatCmd: chatCmd,
chatQuery: chatQuery,
}
}
const (
// keys for the URL parameters. e.g. /root/:param_name
ParamKeyUserID = "user_id"
ParamKeyRoomID = "room_id"
)
func validateParamUserID(e echo.Context) (uint64, error) {
param := e.Param(ParamKeyUserID)
userID, err := strconv.ParseUint(param, 10, 64)
if err != nil {
return 0, NewHTTPError(http.StatusBadRequest, fmt.Errorf("requested user id(%v) is not allowed", param))
}
return userID, nil
}
func validateParamRoomID(e echo.Context) (uint64, error) {
param := e.Param(ParamKeyRoomID)
roomID, err := strconv.ParseUint(param, 10, 64)
if err != nil {
return 0, NewHTTPError(http.StatusBadRequest, fmt.Errorf("requested room id(%v) is not allowed", param))
}
return roomID, nil
}
func (rest *RESTHandler) CreateRoom(e echo.Context) error {
userID, ok := LoggedInUserID(e)
if !ok {
return ErrAPIRequireLoginFirst
}
createRoom := action.CreateRoom{}
if err := e.Bind(&createRoom); err != nil {
return err // default Bind returns *echo.NewHTTPError
}
createRoom.SenderID = userID
createdID, err := rest.chatCmd.CreateRoom(e.Request().Context(), createRoom)
if err != nil {
return NewHTTPError(http.StatusInternalServerError, err)
}
response := struct {
RoomID uint64 `json:"room_id"`
OK bool `json:"ok"`
}{
RoomID: createdID,
OK: true,
}
return e.JSON(http.StatusCreated, response)
}
func (rest *RESTHandler) DeleteRoom(e echo.Context) error {
userID, ok := LoggedInUserID(e)
if !ok {
return ErrAPIRequireLoginFirst
}
roomID, err := validateParamRoomID(e)
if err != nil {
return err
}
deleteRoom := action.DeleteRoom{}
deleteRoom.SenderID = userID
deleteRoom.RoomID = roomID
deletedID, err := rest.chatCmd.DeleteRoom(e.Request().Context(), deleteRoom)
if err != nil {
return NewHTTPError(http.StatusInternalServerError, err)
}
response := struct {
RoomID uint64 `json:"room_id"`
OK bool `json:"ok"`
}{
RoomID: deletedID,
OK: true,
}
return e.JSON(http.StatusOK, response)
}
func (rest *RESTHandler) AddRoomMember(e echo.Context) error {
userID, ok := LoggedInUserID(e)
if !ok {
return ErrAPIRequireLoginFirst
}
roomID, err := validateParamRoomID(e)
if err != nil {
return err
}
addRoomMember := action.AddRoomMember{}
if err := e.Bind(&addRoomMember); err != nil {
return err // default Bind returns *echo.NewHTTPError
}
addRoomMember.SenderID = userID
addRoomMember.RoomID = roomID
res, err := rest.chatCmd.AddRoomMember(e.Request().Context(), addRoomMember)
if err != nil {
if chat.IsNotFoundError(err) {
return NewHTTPError(http.StatusNotFound, err)
}
return NewHTTPError(http.StatusInternalServerError, err)
}
response := struct {
RoomID uint64 `json:"added_room_id"`
AddedUserID uint64 `json:"added_user_id"`
OK bool `json:"ok"`
}{
RoomID: res.RoomID,
AddedUserID: res.UserID,
OK: true,
}
return e.JSON(http.StatusOK, response)
}
func (rest *RESTHandler) RemoveRoomMember(e echo.Context) error {
userID, ok := LoggedInUserID(e)
if !ok {
return ErrAPIRequireLoginFirst
}
roomID, err := validateParamRoomID(e)
if err != nil {
return err
}
removeRoomMember := action.RemoveRoomMember{}
if err := e.Bind(&removeRoomMember); err != nil {
return err // default Bind returns *echo.NewHTTPError
}
removeRoomMember.SenderID = userID
removeRoomMember.RoomID = roomID
res, err := rest.chatCmd.RemoveRoomMember(e.Request().Context(), removeRoomMember)
if err != nil {
if chat.IsNotFoundError(err) {
return NewHTTPError(http.StatusNotFound, err)
}
return NewHTTPError(http.StatusInternalServerError, err)
}
response := struct {
RoomID uint64 `json:"removed_room_id"`
RemovedUserID uint64 `json:"removed_user_id"`
OK bool `json:"ok"`
}{
RoomID: res.RoomID,
RemovedUserID: res.UserID,
OK: true,
}
return e.JSON(http.StatusOK, response)
}
func (rest *RESTHandler) GetRoomInfo(e echo.Context) error {
userID, ok := LoggedInUserID(e)
if !ok {
return ErrAPIRequireLoginFirst
}
roomID, err := validateParamRoomID(e)
if err != nil {
return err
}
info, err := rest.chatQuery.FindRoomInfo(e.Request().Context(), userID, roomID)
if err != nil {
// TODO distinguish logic error or infra error
// if _, ok := err.(*chat.InfraError); ok {
return NewHTTPError(http.StatusInternalServerError, err)
}
return e.JSON(http.StatusOK, info)
}
func (rest *RESTHandler) GetUserInfo(e echo.Context) error {
requestUserID, ok := LoggedInUserID(e)
if !ok {
return ErrAPIRequireLoginFirst
}
// TODO: use requestUserID to validate permittion for accessing other user info.
_ = requestUserID
queryUserID, err := validateParamUserID(e)
if err != nil {
return err
}
relation, err := rest.chatQuery.FindUserRelation(e.Request().Context(), queryUserID)
if err != nil {
return NewHTTPError(http.StatusInternalServerError, err)
}
return e.JSON(http.StatusOK, relation)
}
func (rest *RESTHandler) PostRoomMessage(e echo.Context) error {
userID, ok := LoggedInUserID(e)
if !ok {
return ErrAPIRequireLoginFirst
}
roomID, err := validateParamRoomID(e)
if err != nil {
return err
}
postMsg := action.ChatMessage{}
if err := e.Bind(&postMsg); err != nil {
return err
}
postMsg.SenderID = userID
postMsg.RoomID = roomID
msgID, err := rest.chatCmd.PostRoomMessage(e.Request().Context(), postMsg)
if err != nil {
return NewHTTPError(http.StatusInternalServerError, err)
}
response := struct {
MsgID uint64 `json:"message_id"`
RoomID uint64 `json:"room_id"`
OK bool `json:"ok"`
}{
MsgID: msgID,
RoomID: postMsg.RoomID,
OK: true,
}
return e.JSON(http.StatusCreated, response)
}
func (rest *RESTHandler) GetRoomMessages(e echo.Context) error {
userID, ok := LoggedInUserID(e)
if !ok {
return ErrAPIRequireLoginFirst
}
roomID, err := validateParamRoomID(e)
if err != nil {
return err
}
qRoomMsg := action.QueryRoomMessages{}
if err := e.Bind(&qRoomMsg); err != nil {
return err
}
qRoomMsg.RoomID = roomID
roomMsg, err := rest.chatQuery.FindRoomMessages(e.Request().Context(), userID, qRoomMsg)
if err != nil {
return NewHTTPError(http.StatusInternalServerError, err)
}
return e.JSON(http.StatusOK, roomMsg)
}
func (rest *RESTHandler) GetUnreadRoomMessages(e echo.Context) error {
userID, ok := LoggedInUserID(e)
if !ok {
return ErrAPIRequireLoginFirst
}
roomID, err := validateParamRoomID(e)
if err != nil {
return err
}
q := action.QueryUnreadRoomMessages{}
if err := e.Bind(&q); err != nil {
return err
}
q.RoomID = roomID
unreads, err := rest.chatQuery.FindUnreadRoomMessages(e.Request().Context(), userID, q)
if err != nil {
return NewHTTPError(http.StatusInternalServerError, err)
}
return e.JSON(http.StatusOK, unreads)
}
func (rest *RESTHandler) ReadRoomMessages(e echo.Context) error {
userID, ok := LoggedInUserID(e)
if !ok {
return ErrAPIRequireLoginFirst
}
roomID, err := validateParamRoomID(e)
if err != nil {
return err
}
readMessages := action.ReadMessages{}
if err := e.Bind(&readMessages); err != nil {
return err
}
readMessages.SenderID = userID
readMessages.RoomID = roomID
updatedRoomID, err := rest.chatCmd.ReadRoomMessages(e.Request().Context(), readMessages)
if err != nil {
return NewHTTPError(http.StatusInternalServerError, err)
}
response := struct {
RoomID uint64 `json:"updated_room_id"`
UserID uint64 `json:"read_user_id"`
OK bool `json:"ok"`
}{
RoomID: updatedRoomID,
UserID: readMessages.SenderID,
OK: true,
}
return e.JSON(http.StatusOK, response)
}