/
core.go
447 lines (384 loc) · 11.5 KB
/
core.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
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
/*
Package core provides Go HTTP client for interacting with Core API a.k.a. NordVPN API
*/
package core
import (
"bytes"
"compress/gzip"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"net/http"
"sync"
"github.com/NordSecurity/nordvpn-linux/config"
"github.com/NordSecurity/nordvpn-linux/daemon/response"
"github.com/NordSecurity/nordvpn-linux/request"
)
const (
// linuxPlatformID defines the linux platform ID on the Notification Centre
linuxPlatformID = 500
)
type CredentialsAPI interface {
NotificationCredentials(token, appUserID string) (NotificationCredentialsResponse, error)
ServiceCredentials(string) (*CredentialsResponse, error)
TokenRenew(string) (*TokenRenewResponse, error)
Services(string) (ServicesResponse, error)
CurrentUser(string) (*CurrentUserResponse, error)
DeleteToken(string) error
}
type InsightsAPI interface {
Insights() (*Insights, error)
}
type ServersAPI interface {
Servers() (Servers, http.Header, error)
RecommendedServers(filter ServersFilter, longitude, latitude float64) (Servers, http.Header, error)
Server(id int64) (*Server, error)
ServersCountries() (Countries, http.Header, error)
}
type CombinedAPI interface {
CredentialsAPI
InsightsAPI
ServersAPI
Base() string
Plans() (*Plans, error)
Logout(token string) error
CreateUser(email, password string) (*UserCreateResponse, error)
}
type DefaultAPI struct {
agent string
baseURL string
client *http.Client
validator response.Validator
mu sync.Mutex
}
func NewDefaultAPI(
agent string,
baseURL string,
client *http.Client,
validator response.Validator,
) *DefaultAPI {
return &DefaultAPI{
agent: agent,
baseURL: baseURL,
client: client,
validator: validator,
}
}
func (api *DefaultAPI) Base() string {
api.mu.Lock()
defer api.mu.Unlock()
return api.baseURL
}
func (api *DefaultAPI) request(path, method string, data []byte, token string) (*http.Response, error) {
req, err := request.NewRequestWithBearerToken(method, api.agent, api.baseURL, path, "application/json", "", "gzip, deflate", bytes.NewBuffer(data), token)
if err != nil {
return nil, err
}
return api.do(req)
}
// do request regardless of the authentication.
func (api *DefaultAPI) do(req *http.Request) (*http.Response, error) {
resp, err := api.client.Do(req)
// Transport of the request is already up to date
if err != nil {
return nil, err
}
switch req.Method {
case http.MethodHead:
resp.Body = ioutil.NopCloser(bytes.NewReader(nil))
default:
// Decode response body if it is encoded
switch resp.Header.Get("Content-Encoding") {
case "gzip":
reader, err := gzip.NewReader(resp.Body)
if err != nil {
return nil, err
}
resp.Body = reader
}
}
var body []byte
body, err = io.ReadAll(resp.Body)
if err != nil {
return nil, err
}
defer resp.Body.Close()
resp.Body = ioutil.NopCloser(bytes.NewBuffer(body))
if err := api.validator.Validate(resp.StatusCode, resp.Header, body); err != nil {
return nil, fmt.Errorf("validating headers: %w", err)
}
err = ExtractError(resp)
if err != nil {
return nil, err
}
return resp, nil
}
func (api *DefaultAPI) Plans() (*Plans, error) {
var ret *Plans
req, err := request.NewRequest(http.MethodGet, api.agent, api.baseURL, PlanURL, "application/json", "", "gzip, deflate", nil)
if err != nil {
return nil, err
}
resp, err := api.do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
if err = json.NewDecoder(resp.Body).Decode(&ret); err != nil {
return nil, err
}
return ret, nil
}
// ServiceCredentials returns service credentials
func (api *DefaultAPI) ServiceCredentials(token string) (*CredentialsResponse, error) {
resp, err := api.request(CredentialsURL, http.MethodGet, nil, token)
if err != nil {
return nil, err
}
defer resp.Body.Close()
var ret *CredentialsResponse
if err = json.NewDecoder(resp.Body).Decode(&ret); err != nil {
return nil, err
}
return ret, nil
}
// Services returns all previously and currently used services by the user
func (api *DefaultAPI) Services(token string) (ServicesResponse, error) {
resp, err := api.request(ServicesURL, http.MethodGet, nil, token)
if err != nil {
return nil, err
}
defer resp.Body.Close()
var ret ServicesResponse
if err = json.NewDecoder(resp.Body).Decode(&ret); err != nil {
return nil, err
}
return ret, nil
}
// CreateUser accepts email and password as arguments
// and creates the user
func (api *DefaultAPI) CreateUser(email, password string) (*UserCreateResponse, error) {
data, err := json.Marshal(UserCreateRequest{
Email: email,
Password: password,
})
if err != nil {
return nil, err
}
req, err := request.NewRequest(http.MethodPost, api.agent, api.baseURL, UsersURL, "application/json", "", "gzip, deflate", bytes.NewBuffer(data))
if err != nil {
return nil, err
}
resp, err := api.do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
var ret *UserCreateResponse
if err = json.NewDecoder(resp.Body).Decode(&ret); err != nil {
return nil, err
}
return ret, nil
}
// CurrentUser returns metadata of current user
func (api *DefaultAPI) CurrentUser(token string) (*CurrentUserResponse, error) {
resp, err := api.request(CurrentUserURL, http.MethodGet, nil, token)
if err != nil {
return nil, err
}
defer resp.Body.Close()
var ret *CurrentUserResponse
if err = json.NewDecoder(resp.Body).Decode(&ret); err != nil {
return nil, err
}
return ret, nil
}
func (api *DefaultAPI) DeleteToken(token string) error {
resp, err := api.request(TokensURL, http.MethodDelete, nil, token)
if err != nil {
return err
}
defer resp.Body.Close()
return nil
}
// TokenRenew queries the renew token and returns new token data
func (api *DefaultAPI) TokenRenew(token string) (*TokenRenewResponse, error) {
if token == "" {
return nil, ErrBadRequest
}
data, err := json.Marshal(struct {
RenewToken string `json:"renewToken"`
}{
RenewToken: token,
})
if err != nil {
return nil, err
}
req, err := request.NewRequest(http.MethodPost, api.agent, api.baseURL, TokenRenewURL, "application/json", "", "gzip, deflate", bytes.NewBuffer(data))
if err != nil {
return nil, err
}
resp, err := api.do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
var ret *TokenRenewResponse
if err := json.NewDecoder(resp.Body).Decode(&ret); err != nil {
return nil, err
}
return ret, nil
}
// Servers returns servers list
func (api *DefaultAPI) Servers() (Servers, http.Header, error) {
req, err := request.NewRequest(http.MethodGet, api.agent, api.baseURL, ServersURL+ServersURLConnectQuery, "application/json", "", "gzip, deflate", nil)
if err != nil {
return nil, nil, err
}
resp, err := api.do(req)
if err != nil {
return nil, nil, err
}
defer resp.Body.Close()
var ret Servers
if err = json.NewDecoder(resp.Body).Decode(&ret); err != nil {
return nil, nil, err
}
return ret, resp.Header, nil
}
// ServersCountries returns server countries list
func (api *DefaultAPI) ServersCountries() (Countries, http.Header, error) {
req, err := request.NewRequest(http.MethodGet, api.agent, api.baseURL, ServersCountriesURL, "application/json", "", "gzip, deflate", nil)
if err != nil {
return nil, nil, err
}
resp, err := api.do(req)
if err != nil {
return nil, nil, err
}
defer resp.Body.Close()
var ret Countries
if err = json.NewDecoder(resp.Body).Decode(&ret); err != nil {
return nil, nil, err
}
return ret, resp.Header, nil
}
// RecommendedServers returns recommended servers list
func (api *DefaultAPI) RecommendedServers(filter ServersFilter, longitude, latitude float64) (Servers, http.Header, error) {
var filterQuery string
switch filter.Tag.Action { //nolint:exhaustive // libmoose deprecates this
case ServerBySpeed:
// Set group filter from tag only if group flag is not defined
if filter.Group == config.UndefinedGroup {
filterQuery = fmt.Sprintf(RecommendedServersGroupsFilter, filter.Tag.ID)
}
case ServerByCountry:
filterQuery = fmt.Sprintf(RecommendedServersCountryFilter, filter.Tag.ID)
case ServerByCity:
filterQuery = fmt.Sprintf(RecommendedServersCityFilter, filter.Tag.ID)
default:
filterQuery = ""
}
// When flag is defined append it to filter query
if filter.Group != config.UndefinedGroup {
filterQuery += fmt.Sprintf(RecommendedServersGroupsFilter, filter.Group)
}
url := RecommendedServersURL + fmt.Sprintf(RecommendedServersURLConnectQuery, filter.Limit, filter.Tech, longitude, latitude) + filterQuery
req, err := request.NewRequest(http.MethodGet, api.agent, api.baseURL, url, "application/json", "", "gzip, deflate", nil)
if err != nil {
return nil, nil, err
}
resp, err := api.do(req)
if err != nil {
return nil, nil, err
}
defer resp.Body.Close()
var ret Servers
if err = json.NewDecoder(resp.Body).Decode(&ret); err != nil {
return nil, nil, err
}
return ret, resp.Header, nil
}
// Server returns specific server
func (api *DefaultAPI) Server(id int64) (*Server, error) {
req, err := request.NewRequest(http.MethodGet, api.agent, api.baseURL, ServersURL+fmt.Sprintf(ServersURLSpecificQuery, id), "application/json", "", "gzip, deflate", nil)
if err != nil {
return nil, err
}
resp, err := api.do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
var ret Servers
if err = json.NewDecoder(resp.Body).Decode(&ret); err != nil {
return nil, err
}
if len(ret) != 1 {
return nil, fmt.Errorf("invalid response")
}
return &ret[0], nil
}
// Insights returns insights about user
func (api *DefaultAPI) Insights() (*Insights, error) {
req, err := request.NewRequest(http.MethodGet, api.agent, api.baseURL, InsightsURL, "application/json", "", "gzip, deflate", nil)
if err != nil {
return nil, err
}
resp, err := api.do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
var ret Insights
if err = json.NewDecoder(resp.Body).Decode(&ret); err != nil {
return nil, err
}
return &ret, nil
}
type NotificationCredentialsRequest struct {
AppUserID string `json:"app_user_uid"`
PlatformID int `json:"platform_id"`
}
type NotificationCredentialsResponse struct {
Endpoint string `json:"endpoint"`
Username string `json:"username"`
Password string `json:"password"`
}
// NotificationCredentials retrieves the credentials for notification center appUserID
func (api *DefaultAPI) NotificationCredentials(token, appUserID string) (NotificationCredentialsResponse, error) {
data, err := json.Marshal(NotificationCredentialsRequest{
AppUserID: appUserID,
PlatformID: linuxPlatformID,
})
if err != nil {
return NotificationCredentialsResponse{}, fmt.Errorf("marshaling the request data: %w", err)
}
req, err := request.NewRequestWithBearerToken(http.MethodPost, api.agent, api.baseURL, notificationTokenURL, "application/json", "", "gzip, deflate", bytes.NewBuffer(data), token)
if err != nil {
return NotificationCredentialsResponse{}, fmt.Errorf("creating nc credentials request: %w", err)
}
rawResp, err := api.do(req)
if err != nil {
return NotificationCredentialsResponse{}, fmt.Errorf("executing HTTP POST request: %w", err)
}
defer rawResp.Body.Close()
out, err := io.ReadAll(rawResp.Body)
if err != nil {
return NotificationCredentialsResponse{}, fmt.Errorf("reading HTTP response body: %w", err)
}
var resp NotificationCredentialsResponse
if err := json.Unmarshal(out, &resp); err != nil {
return NotificationCredentialsResponse{}, fmt.Errorf("unmarshalling HTTP response: %w", err)
}
return resp, nil
}
func (api *DefaultAPI) Logout(token string) error {
resp, err := api.request(urlOAuth2Logout, http.MethodPost, nil, token)
if err != nil {
return err
}
defer resp.Body.Close()
return nil
}