Skip to content
Navigation Menu
{{ message }}
forked from google/go-github
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathgithub.go
More file actions
1368 lines (1168 loc) · 45.6 KB
/
Copy pathgithub.go
File metadata and controls
1368 lines (1168 loc) · 45.6 KB
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
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
// Copyright 2013 The go-github AUTHORS. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:generate go run gen-accessors.go
//go:generate go run gen-stringify-test.go
package github
import (
"bytes"
"context"
"encoding/json"
"errors"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/url"
"reflect"
"strconv"
"strings"
"sync"
"time"
"github.com/google/go-querystring/query"
)
const (
Version = "45.2.0"
defaultBaseURL = "https://api.github.com/"
defaultUserAgent = "go-github" + "/" + Version
uploadBaseURL = "https://uploads.github.com/"
headerRateLimit = "X-RateLimit-Limit"
headerRateRemaining = "X-RateLimit-Remaining"
headerRateReset = "X-RateLimit-Reset"
headerOTP = "X-GitHub-OTP"
headerTokenExpiration = "GitHub-Authentication-Token-Expiration"
mediaTypeV3 = "application/vnd.github.v3+json"
defaultMediaType = "application/octet-stream"
mediaTypeV3SHA = "application/vnd.github.v3.sha"
mediaTypeV3Diff = "application/vnd.github.v3.diff"
mediaTypeV3Patch = "application/vnd.github.v3.patch"
mediaTypeOrgPermissionRepo = "application/vnd.github.v3.repository+json"
mediaTypeIssueImportAPI = "application/vnd.github.golden-comet-preview+json"
// Media Type values to access preview APIs
// These media types will be added to the API request as headers
// and used to enable particular features on GitHub API that are still in preview.
// After some time, specific media types will be promoted (to a "stable" state).
// From then on, the preview headers are not required anymore to activate the additional
// feature on GitHub.com's API. However, this API header might still be needed for users
// to run a GitHub Enterprise Server on-premise.
// It's not uncommon for GitHub Enterprise Server customers to run older versions which
// would probably rely on the preview headers for some time.
// While the header promotion is going out for GitHub.com, it may be some time before it
// even arrives in GitHub Enterprise Server.
// We keep those preview headers around to avoid breaking older GitHub Enterprise Server
// versions. Additionally, non-functional (preview) headers don't create any side effects
// on GitHub Cloud version.
//
// See https://github.com/google/go-github/pull/2125 for full context.
// https://developer.github.com/changes/2014-12-09-new-attributes-for-stars-api/
mediaTypeStarringPreview = "application/vnd.github.v3.star+json"
// https://help.github.com/enterprise/2.4/admin/guides/migrations/exporting-the-github-com-organization-s-repositories/
mediaTypeMigrationsPreview = "application/vnd.github.wyandotte-preview+json"
// https://developer.github.com/changes/2016-04-06-deployment-and-deployment-status-enhancements/
mediaTypeDeploymentStatusPreview = "application/vnd.github.ant-man-preview+json"
// https://developer.github.com/changes/2018-10-16-deployments-environments-states-and-auto-inactive-updates/
mediaTypeExpandDeploymentStatusPreview = "application/vnd.github.flash-preview+json"
// https://developer.github.com/changes/2016-05-12-reactions-api-preview/
mediaTypeReactionsPreview = "application/vnd.github.squirrel-girl-preview"
// https://developer.github.com/changes/2016-05-23-timeline-preview-api/
mediaTypeTimelinePreview = "application/vnd.github.mockingbird-preview+json"
// https://developer.github.com/changes/2016-09-14-projects-api/
mediaTypeProjectsPreview = "application/vnd.github.inertia-preview+json"
// https://developer.github.com/changes/2017-01-05-commit-search-api/
mediaTypeCommitSearchPreview = "application/vnd.github.cloak-preview+json"
// https://developer.github.com/changes/2017-02-28-user-blocking-apis-and-webhook/
mediaTypeBlockUsersPreview = "application/vnd.github.giant-sentry-fist-preview+json"
// https://developer.github.com/changes/2017-05-23-coc-api/
mediaTypeCodesOfConductPreview = "application/vnd.github.scarlet-witch-preview+json"
// https://developer.github.com/changes/2017-07-17-update-topics-on-repositories/
mediaTypeTopicsPreview = "application/vnd.github.mercy-preview+json"
// https://developer.github.com/changes/2018-03-16-protected-branches-required-approving-reviews/
mediaTypeRequiredApprovingReviewsPreview = "application/vnd.github.luke-cage-preview+json"
// https://developer.github.com/changes/2018-05-07-new-checks-api-public-beta/
mediaTypeCheckRunsPreview = "application/vnd.github.antiope-preview+json"
// https://developer.github.com/enterprise/2.13/v3/repos/pre_receive_hooks/
mediaTypePreReceiveHooksPreview = "application/vnd.github.eye-scream-preview"
// https://developer.github.com/changes/2018-02-22-protected-branches-required-signatures/
mediaTypeSignaturePreview = "application/vnd.github.zzzax-preview+json"
// https://developer.github.com/changes/2018-09-05-project-card-events/
mediaTypeProjectCardDetailsPreview = "application/vnd.github.starfox-preview+json"
// https://developer.github.com/changes/2018-12-18-interactions-preview/
mediaTypeInteractionRestrictionsPreview = "application/vnd.github.sombra-preview+json"
// https://developer.github.com/changes/2019-03-14-enabling-disabling-pages/
mediaTypeEnablePagesAPIPreview = "application/vnd.github.switcheroo-preview+json"
// https://developer.github.com/changes/2019-04-24-vulnerability-alerts/
mediaTypeRequiredVulnerabilityAlertsPreview = "application/vnd.github.dorian-preview+json"
// https://developer.github.com/changes/2019-06-04-automated-security-fixes/
mediaTypeRequiredAutomatedSecurityFixesPreview = "application/vnd.github.london-preview+json"
// https://developer.github.com/changes/2019-05-29-update-branch-api/
mediaTypeUpdatePullRequestBranchPreview = "application/vnd.github.lydian-preview+json"
// https://developer.github.com/changes/2019-04-11-pulls-branches-for-commit/
mediaTypeListPullsOrBranchesForCommitPreview = "application/vnd.github.groot-preview+json"
// https://docs.github.com/en/rest/previews/#repository-creation-permissions
mediaTypeMemberAllowedRepoCreationTypePreview = "application/vnd.github.surtur-preview+json"
// https://docs.github.com/en/rest/previews/#create-and-use-repository-templates
mediaTypeRepositoryTemplatePreview = "application/vnd.github.baptiste-preview+json"
// https://developer.github.com/changes/2019-10-03-multi-line-comments/
mediaTypeMultiLineCommentsPreview = "application/vnd.github.comfort-fade-preview+json"
// https://developer.github.com/changes/2019-11-05-deprecated-passwords-and-authorizations-api/
mediaTypeOAuthAppPreview = "application/vnd.github.doctor-strange-preview+json"
// https://developer.github.com/changes/2019-12-03-internal-visibility-changes/
mediaTypeRepositoryVisibilityPreview = "application/vnd.github.nebula-preview+json"
// https://developer.github.com/changes/2018-12-10-content-attachments-api/
mediaTypeContentAttachmentsPreview = "application/vnd.github.corsair-preview+json"
)
var errNonNilContext = errors.New("context must be non-nil")
// A Client manages communication with the GitHub API.
type Client struct {
clientMu sync.Mutex // clientMu protects the client during calls that modify the CheckRedirect func.
client *http.Client // HTTP client used to communicate with the API.
// Base URL for API requests. Defaults to the public GitHub API, but can be
// set to a domain endpoint to use with GitHub Enterprise. BaseURL should
// always be specified with a trailing slash.
BaseURL *url.URL
// Base URL for uploading files.
UploadURL *url.URL
// User agent used when communicating with the GitHub API.
UserAgent string
rateMu sync.Mutex
rateLimits [categories]Rate // Rate limits for the client as determined by the most recent API calls.
common service // Reuse a single struct instead of allocating one for each service on the heap.
// Services used for talking to different parts of the GitHub API.
Actions *ActionsService
Activity *ActivityService
Admin *AdminService
Apps *AppsService
Authorizations *AuthorizationsService
Billing *BillingService
Checks *ChecksService
CodeScanning *CodeScanningService
Dependabot *DependabotService
Enterprise *EnterpriseService
Gists *GistsService
Git *GitService
Gitignores *GitignoresService
Interactions *InteractionsService
IssueImport *IssueImportService
Issues *IssuesService
Licenses *LicensesService
Marketplace *MarketplaceService
Migrations *MigrationService
Organizations *OrganizationsService
Projects *ProjectsService
PullRequests *PullRequestsService
Reactions *ReactionsService
Repositories *RepositoriesService
SCIM *SCIMService
Search *SearchService
SecretScanning *SecretScanningService
Teams *TeamsService
Users *UsersService
}
type service struct {
client *Client
}
// Client returns the http.Client used by this GitHub client.
func (c *Client) Client() *http.Client {
c.clientMu.Lock()
defer c.clientMu.Unlock()
clientCopy := *c.client
return &clientCopy
}
// ListOptions specifies the optional parameters to various List methods that
// support offset pagination.
type ListOptions struct {
// For paginated result sets, page of results to retrieve.
Page int `url:"page,omitempty"`
// For paginated result sets, the number of results to include per page.
PerPage int `url:"per_page,omitempty"`
}
// ListCursorOptions specifies the optional parameters to various List methods that
// support cursor pagination.
type ListCursorOptions struct {
// For paginated result sets, page of results to retrieve.
Page string `url:"page,omitempty"`
// For paginated result sets, the number of results to include per page.
PerPage int `url:"per_page,omitempty"`
// A cursor, as given in the Link header. If specified, the query only searches for events after this cursor.
After string `url:"after,omitempty"`
// A cursor, as given in the Link header. If specified, the query only searches for events before this cursor.
Before string `url:"before,omitempty"`
// A cursor, as given in the Link header. If specified, the query continues the search using this cursor.
Cursor string `url:"cursor,omitempty"`
}
// UploadOptions specifies the parameters to methods that support uploads.
type UploadOptions struct {
Name string `url:"name,omitempty"`
Label string `url:"label,omitempty"`
MediaType string `url:"-"`
}
// RawType represents type of raw format of a request instead of JSON.
type RawType uint8
const (
// Diff format.
Diff RawType = 1 + iota
// Patch format.
Patch
)
// RawOptions specifies parameters when user wants to get raw format of
// a response instead of JSON.
type RawOptions struct {
Type RawType
}
// addOptions adds the parameters in opts as URL query parameters to s. opts
// must be a struct whose fields may contain "url" tags.
func addOptions(s string, opts interface{}) (string, error) {
v := reflect.ValueOf(opts)
if v.Kind() == reflect.Ptr && v.IsNil() {
return s, nil
}
u, err := url.Parse(s)
if err != nil {
return s, err
}
qs, err := query.Values(opts)
if err != nil {
return s, err
}
u.RawQuery = qs.Encode()
return u.String(), nil
}
// NewClient returns a new GitHub API client. If a nil httpClient is
// provided, a new http.Client will be used. To use API methods which require
// authentication, provide an http.Client that will perform the authentication
// for you (such as that provided by the golang.org/x/oauth2 library).
func NewClient(httpClient *http.Client) *Client {
if httpClient == nil {
httpClient = &http.Client{}
}
baseURL, _ := url.Parse(defaultBaseURL)
uploadURL, _ := url.Parse(uploadBaseURL)
c := &Client{client: httpClient, BaseURL: baseURL, UserAgent: defaultUserAgent, UploadURL: uploadURL}
c.common.client = c
c.Actions = (*ActionsService)(&c.common)
c.Activity = (*ActivityService)(&c.common)
c.Admin = (*AdminService)(&c.common)
c.Apps = (*AppsService)(&c.common)
c.Authorizations = (*AuthorizationsService)(&c.common)
c.Billing = (*BillingService)(&c.common)
c.Checks = (*ChecksService)(&c.common)
c.CodeScanning = (*CodeScanningService)(&c.common)
c.Dependabot = (*DependabotService)(&c.common)
c.Enterprise = (*EnterpriseService)(&c.common)
c.Gists = (*GistsService)(&c.common)
c.Git = (*GitService)(&c.common)
c.Gitignores = (*GitignoresService)(&c.common)
c.Interactions = (*InteractionsService)(&c.common)
c.IssueImport = (*IssueImportService)(&c.common)
c.Issues = (*IssuesService)(&c.common)
c.Licenses = (*LicensesService)(&c.common)
c.Marketplace = &MarketplaceService{client: c}
c.Migrations = (*MigrationService)(&c.common)
c.Organizations = (*OrganizationsService)(&c.common)
c.Projects = (*ProjectsService)(&c.common)
c.PullRequests = (*PullRequestsService)(&c.common)
c.Reactions = (*ReactionsService)(&c.common)
c.Repositories = (*RepositoriesService)(&c.common)
c.SCIM = (*SCIMService)(&c.common)
c.Search = (*SearchService)(&c.common)
c.SecretScanning = (*SecretScanningService)(&c.common)
c.Teams = (*TeamsService)(&c.common)
c.Users = (*UsersService)(&c.common)
return c
}
// NewEnterpriseClient returns a new GitHub API client with provided
// base URL and upload URL (often is your GitHub Enterprise hostname).
// If the base URL does not have the suffix "/api/v3/", it will be added automatically.
// If the upload URL does not have the suffix "/api/uploads", it will be added automatically.
// If a nil httpClient is provided, a new http.Client will be used.
//
// Note that NewEnterpriseClient is a convenience helper only;
// its behavior is equivalent to using NewClient, followed by setting
// the BaseURL and UploadURL fields.
//
// Another important thing is that by default, the GitHub Enterprise URL format
// should be http(s)://[hostname]/api/v3/ or you will always receive the 406 status code.
// The upload URL format should be http(s)://[hostname]/api/uploads/.
func NewEnterpriseClient(baseURL, uploadURL string, httpClient *http.Client) (*Client, error) {
baseEndpoint, err := url.Parse(baseURL)
if err != nil {
return nil, err
}
if !strings.HasSuffix(baseEndpoint.Path, "/") {
baseEndpoint.Path += "/"
}
if !strings.HasSuffix(baseEndpoint.Path, "/api/v3/") &&
!strings.HasPrefix(baseEndpoint.Host, "api.") &&
!strings.Contains(baseEndpoint.Host, ".api.") {
baseEndpoint.Path += "api/v3/"
}
uploadEndpoint, err := url.Parse(uploadURL)
if err != nil {
return nil, err
}
if !strings.HasSuffix(uploadEndpoint.Path, "/") {
uploadEndpoint.Path += "/"
}
if !strings.HasSuffix(uploadEndpoint.Path, "/api/uploads/") &&
!strings.HasPrefix(uploadEndpoint.Host, "api.") &&
!strings.Contains(uploadEndpoint.Host, ".api.") {
uploadEndpoint.Path += "api/uploads/"
}
c := NewClient(httpClient)
c.BaseURL = baseEndpoint
c.UploadURL = uploadEndpoint
return c, nil
}
// NewRequest creates an API request. A relative URL can be provided in urlStr,
// in which case it is resolved relative to the BaseURL of the Client.
// Relative URLs should always be specified without a preceding slash. If
// specified, the value pointed to by body is JSON encoded and included as the
// request body.
func (c *Client) NewRequest(method, urlStr string, body interface{}) (*http.Request, error) {
if !strings.HasSuffix(c.BaseURL.Path, "/") {
return nil, fmt.Errorf("BaseURL must have a trailing slash, but %q does not", c.BaseURL)
}
u, err := c.BaseURL.Parse(urlStr)
if err != nil {
return nil, err
}
var buf io.ReadWriter
if body != nil {
buf = &bytes.Buffer{}
enc := json.NewEncoder(buf)
enc.SetEscapeHTML(false)
err := enc.Encode(body)
if err != nil {
return nil, err
}
}
req, err := http.NewRequest(method, u.String(), buf)
if err != nil {
return nil, err
}
if body != nil {
req.Header.Set("Content-Type", "application/json")
}
req.Header.Set("Accept", mediaTypeV3)
if c.UserAgent != "" {
req.Header.Set("User-Agent", c.UserAgent)
}
return req, nil
}
// NewUploadRequest creates an upload request. A relative URL can be provided in
// urlStr, in which case it is resolved relative to the UploadURL of the Client.
// Relative URLs should always be specified without a preceding slash.
func (c *Client) NewUploadRequest(urlStr string, reader io.Reader, size int64, mediaType string) (*http.Request, error) {
if !strings.HasSuffix(c.UploadURL.Path, "/") {
return nil, fmt.Errorf("UploadURL must have a trailing slash, but %q does not", c.UploadURL)
}
u, err := c.UploadURL.Parse(urlStr)
if err != nil {
return nil, err
}
req, err := http.NewRequest("POST", u.String(), reader)
if err != nil {
return nil, err
}
req.ContentLength = size
if mediaType == "" {
mediaType = defaultMediaType
}
req.Header.Set("Content-Type", mediaType)
req.Header.Set("Accept", mediaTypeV3)
req.Header.Set("User-Agent", c.UserAgent)
return req, nil
}
// Response is a GitHub API response. This wraps the standard http.Response
// returned from GitHub and provides convenient access to things like
// pagination links.
type Response struct {
*http.Response
// These fields provide the page values for paginating through a set of
// results. Any or all of these may be set to the zero value for
// responses that are not part of a paginated set, or for which there
// are no additional pages.
//
// These fields support what is called "offset pagination" and should
// be used with the ListOptions struct.
NextPage int
PrevPage int
FirstPage int
LastPage int
// Additionally, some APIs support "cursor pagination" instead of offset.
// This means that a token points directly to the next record which
// can lead to O(1) performance compared to O(n) performance provided
// by offset pagination.
//
// For APIs that support cursor pagination (such as
// TeamsService.ListIDPGroupsInOrganization), the following field
// will be populated to point to the next page.
//
// To use this token, set ListCursorOptions.Page to this value before
// calling the endpoint again.
NextPageToken string
// For APIs that support cursor pagination, such as RepositoriesService.ListHookDeliveries,
// the following field will be populated to point to the next page.
// Set ListCursorOptions.Cursor to this value when calling the endpoint again.
Cursor string
// For APIs that support before/after pagination, such as OrganizationsService.AuditLog.
Before string
After string
// Explicitly specify the Rate type so Rate's String() receiver doesn't
// propagate to Response.
Rate Rate
// token's expiration date
TokenExpiration Timestamp
}
// newResponse creates a new Response for the provided http.Response.
// r must not be nil.
func newResponse(r *http.Response) *Response {
response := &Response{Response: r}
response.populatePageValues()
response.Rate = parseRate(r)
response.TokenExpiration = parseTokenExpiration(r)
return response
}
// populatePageValues parses the HTTP Link response headers and populates the
// various pagination link values in the Response.
func (r *Response) populatePageValues() {
if links, ok := r.Response.Header["Link"]; ok && len(links) > 0 {
for _, link := range strings.Split(links[0], ",") {
segments := strings.Split(strings.TrimSpace(link), ";")
// link must at least have href and rel
if len(segments) < 2 {
continue
}
// ensure href is properly formatted
if !strings.HasPrefix(segments[0], "<") || !strings.HasSuffix(segments[0], ">") {
continue
}
// try to pull out page parameter
url, err := url.Parse(segments[0][1 : len(segments[0])-1])
if err != nil {
continue
}
q := url.Query()
if cursor := q.Get("cursor"); cursor != "" {
for _, segment := range segments[1:] {
switch strings.TrimSpace(segment) {
case `rel="next"`:
r.Cursor = cursor
}
}
continue
}
page := q.Get("page")
since := q.Get("since")
before := q.Get("before")
after := q.Get("after")
if page == "" && before == "" && after == "" && since == "" {
continue
}
if since != "" && page == "" {
page = since
}
for _, segment := range segments[1:] {
switch strings.TrimSpace(segment) {
case `rel="next"`:
if r.NextPage, err = strconv.Atoi(page); err != nil {
r.NextPageToken = page
}
r.After = after
case `rel="prev"`:
r.PrevPage, _ = strconv.Atoi(page)
r.Before = before
case `rel="first"`:
r.FirstPage, _ = strconv.Atoi(page)
case `rel="last"`:
r.LastPage, _ = strconv.Atoi(page)
}
}
}
}
}
// parseRate parses the rate related headers.
func parseRate(r *http.Response) Rate {
var rate Rate
if limit := r.Header.Get(headerRateLimit); limit != "" {
rate.Limit, _ = strconv.Atoi(limit)
}
if remaining := r.Header.Get(headerRateRemaining); remaining != "" {
rate.Remaining, _ = strconv.Atoi(remaining)
}
if reset := r.Header.Get(headerRateReset); reset != "" {
if v, _ := strconv.ParseInt(reset, 10, 64); v != 0 {
rate.Reset = Timestamp{time.Unix(v, 0)}
}
}
return rate
}
// parseTokenExpiration parses the TokenExpiration related headers.
func parseTokenExpiration(r *http.Response) Timestamp {
var exp Timestamp
if v := r.Header.Get(headerTokenExpiration); v != "" {
if t, err := time.Parse("2006-01-02 03:04:05 MST", v); err == nil {
exp = Timestamp{t.Local()}
}
}
return exp
}
type requestContext uint8
const (
bypassRateLimitCheck requestContext = iota
)
// BareDo sends an API request and lets you handle the api response. If an error
// or API Error occurs, the error will contain more information. Otherwise you
// are supposed to read and close the response's Body. If rate limit is exceeded
// and reset time is in the future, BareDo returns *RateLimitError immediately
// without making a network API call.
//
// The provided ctx must be non-nil, if it is nil an error is returned. If it is
// canceled or times out, ctx.Err() will be returned.
func (c *Client) BareDo(ctx context.Context, req *http.Request) (*Response, error) {
if ctx == nil {
return nil, errNonNilContext
}
req = withContext(ctx, req)
rateLimitCategory := category(req.URL.Path)
if bypass := ctx.Value(bypassRateLimitCheck); bypass == nil {
// If we've hit rate limit, don't make further requests before Reset time.
if err := c.checkRateLimitBeforeDo(req, rateLimitCategory); err != nil {
return &Response{
Response: err.Response,
Rate: err.Rate,
}, err
}
}
resp, err := c.client.Do(req)
if err != nil {
// If we got an error, and the context has been canceled,
// the context's error is probably more useful.
select {
case <-ctx.Done():
return nil, ctx.Err()
default:
}
// If the error type is *url.Error, sanitize its URL before returning.
if e, ok := err.(*url.Error); ok {
if url, err := url.Parse(e.URL); err == nil {
e.URL = sanitizeURL(url).String()
return nil, e
}
}
return nil, err
}
response := newResponse(resp)
// Don't update the rate limits if this was a cached response.
// X-From-Cache is set by https://github.com/gregjones/httpcache
if response.Header.Get("X-From-Cache") == "" {
c.rateMu.Lock()
c.rateLimits[rateLimitCategory] = response.Rate
c.rateMu.Unlock()
}
err = CheckResponse(resp)
if err != nil {
defer resp.Body.Close()
// Special case for AcceptedErrors. If an AcceptedError
// has been encountered, the response's payload will be
// added to the AcceptedError and returned.
//
// Issue #1022
aerr, ok := err.(*AcceptedError)
if ok {
b, readErr := ioutil.ReadAll(resp.Body)
if readErr != nil {
return response, readErr
}
aerr.Raw = b
err = aerr
}
}
return response, err
}
// Do sends an API request and returns the API response. The API response is
// JSON decoded and stored in the value pointed to by v, or returned as an
// error if an API error has occurred. If v implements the io.Writer interface,
// the raw response body will be written to v, without attempting to first
// decode it. If v is nil, and no error hapens, the response is returned as is.
// If rate limit is exceeded and reset time is in the future, Do returns
// *RateLimitError immediately without making a network API call.
//
// The provided ctx must be non-nil, if it is nil an error is returned. If it
// is canceled or times out, ctx.Err() will be returned.
func (c *Client) Do(ctx context.Context, req *http.Request, v interface{}) (*Response, error) {
resp, err := c.BareDo(ctx, req)
if err != nil {
return resp, err
}
defer resp.Body.Close()
switch v := v.(type) {
case nil:
case io.Writer:
_, err = io.Copy(v, resp.Body)
default:
decErr := json.NewDecoder(resp.Body).Decode(v)
if decErr == io.EOF {
decErr = nil // ignore EOF errors caused by empty response body
}
if decErr != nil {
err = decErr
}
}
return resp, err
}
// checkRateLimitBeforeDo does not make any network calls, but uses existing knowledge from
// current client state in order to quickly check if *RateLimitError can be immediately returned
// from Client.Do, and if so, returns it so that Client.Do can skip making a network API call unnecessarily.
// Otherwise it returns nil, and Client.Do should proceed normally.
func (c *Client) checkRateLimitBeforeDo(req *http.Request, rateLimitCategory rateLimitCategory) *RateLimitError {
c.rateMu.Lock()
rate := c.rateLimits[rateLimitCategory]
c.rateMu.Unlock()
if !rate.Reset.Time.IsZero() && rate.Remaining == 0 && time.Now().Before(rate.Reset.Time) {
// Create a fake response.
resp := &http.Response{
Status: http.StatusText(http.StatusForbidden),
StatusCode: http.StatusForbidden,
Request: req,
Header: make(http.Header),
Body: ioutil.NopCloser(strings.NewReader("")),
}
return &RateLimitError{
Rate: rate,
Response: resp,
Message: fmt.Sprintf("API rate limit of %v still exceeded until %v, not making remote request.", rate.Limit, rate.Reset.Time),
}
}
return nil
}
// compareHTTPResponse returns whether two http.Response objects are equal or not.
// Currently, only StatusCode is checked. This function is used when implementing the
// Is(error) bool interface for the custom error types in this package.
func compareHTTPResponse(r1, r2 *http.Response) bool {
if r1 == nil && r2 == nil {
return true
}
if r1 != nil && r2 != nil {
return r1.StatusCode == r2.StatusCode
}
return false
}
/*
An ErrorResponse reports one or more errors caused by an API request.
GitHub API docs: https://docs.github.com/en/rest/#client-errors
*/
type ErrorResponse struct {
Response *http.Response // HTTP response that caused this error
Message string `json:"message"` // error message
Errors []Error `json:"errors"` // more detail on individual errors
// Block is only populated on certain types of errors such as code 451.
Block *ErrorBlock `json:"block,omitempty"`
// Most errors will also include a documentation_url field pointing
// to some content that might help you resolve the error, see
// https://docs.github.com/en/rest/#client-errors
DocumentationURL string `json:"documentation_url,omitempty"`
}
// ErrorBlock contains a further explanation for the reason of an error.
// See https://developer.github.com/changes/2016-03-17-the-451-status-code-is-now-supported/
// for more information.
type ErrorBlock struct {
Reason string `json:"reason,omitempty"`
CreatedAt *Timestamp `json:"created_at,omitempty"`
}
func (r *ErrorResponse) Error() string {
return fmt.Sprintf("%v %v: %d %v %+v",
r.Response.Request.Method, sanitizeURL(r.Response.Request.URL),
r.Response.StatusCode, r.Message, r.Errors)
}
// Is returns whether the provided error equals this error.
func (r *ErrorResponse) Is(target error) bool {
v, ok := target.(*ErrorResponse)
if !ok {
return false
}
if r.Message != v.Message || (r.DocumentationURL != v.DocumentationURL) ||
!compareHTTPResponse(r.Response, v.Response) {
return false
}
// Compare Errors.
if len(r.Errors) != len(v.Errors) {
return false
}
for idx := range r.Errors {
if r.Errors[idx] != v.Errors[idx] {
return false
}
}
// Compare Block.
if (r.Block != nil && v.Block == nil) || (r.Block == nil && v.Block != nil) {
return false
}
if r.Block != nil && v.Block != nil {
if r.Block.Reason != v.Block.Reason {
return false
}
if (r.Block.CreatedAt != nil && v.Block.CreatedAt == nil) || (r.Block.CreatedAt ==
nil && v.Block.CreatedAt != nil) {
return false
}
if r.Block.CreatedAt != nil && v.Block.CreatedAt != nil {
if *(r.Block.CreatedAt) != *(v.Block.CreatedAt) {
return false
}
}
}
return true
}
// TwoFactorAuthError occurs when using HTTP Basic Authentication for a user
// that has two-factor authentication enabled. The request can be reattempted
// by providing a one-time password in the request.
type TwoFactorAuthError ErrorResponse
func (r *TwoFactorAuthError) Error() string { return (*ErrorResponse)(r).Error() }
// RateLimitError occurs when GitHub returns 403 Forbidden response with a rate limit
// remaining value of 0.
type RateLimitError struct {
Rate Rate // Rate specifies last known rate limit for the client
Response *http.Response // HTTP response that caused this error
Message string `json:"message"` // error message
}
func (r *RateLimitError) Error() string {
return fmt.Sprintf("%v %v: %d %v %v",
r.Response.Request.Method, sanitizeURL(r.Response.Request.URL),
r.Response.StatusCode, r.Message, formatRateReset(time.Until(r.Rate.Reset.Time)))
}
// Is returns whether the provided error equals this error.
func (r *RateLimitError) Is(target error) bool {
v, ok := target.(*RateLimitError)
if !ok {
return false
}
return r.Rate == v.Rate &&
r.Message == v.Message &&
compareHTTPResponse(r.Response, v.Response)
}
// AcceptedError occurs when GitHub returns 202 Accepted response with an
// empty body, which means a job was scheduled on the GitHub side to process
// the information needed and cache it.
// Technically, 202 Accepted is not a real error, it's just used to
// indicate that results are not ready yet, but should be available soon.
// The request can be repeated after some time.
type AcceptedError struct {
// Raw contains the response body.
Raw []byte
}
func (*AcceptedError) Error() string {
return "job scheduled on GitHub side; try again later"
}
// Is returns whether the provided error equals this error.
func (ae *AcceptedError) Is(target error) bool {
v, ok := target.(*AcceptedError)
if !ok {
return false
}
return bytes.Compare(ae.Raw, v.Raw) == 0
}
// AbuseRateLimitError occurs when GitHub returns 403 Forbidden response with the
// "documentation_url" field value equal to "https://docs.github.com/en/rest/overview/resources-in-the-rest-api#secondary-rate-limits".
type AbuseRateLimitError struct {
Response *http.Response // HTTP response that caused this error
Message string `json:"message"` // error message
// RetryAfter is provided with some abuse rate limit errors. If present,
// it is the amount of time that the client should wait before retrying.
// Otherwise, the client should try again later (after an unspecified amount of time).
RetryAfter *time.Duration
}
func (r *AbuseRateLimitError) Error() string {
return fmt.Sprintf("%v %v: %d %v",
r.Response.Request.Method, sanitizeURL(r.Response.Request.URL),
r.Response.StatusCode, r.Message)
}
// Is returns whether the provided error equals this error.
func (r *AbuseRateLimitError) Is(target error) bool {
v, ok := target.(*AbuseRateLimitError)
if !ok {
return false
}
return r.Message == v.Message &&
r.RetryAfter == v.RetryAfter &&
compareHTTPResponse(r.Response, v.Response)
}
// sanitizeURL redacts the client_secret parameter from the URL which may be
// exposed to the user.
func sanitizeURL(uri *url.URL) *url.URL {
if uri == nil {
return nil
}
params := uri.Query()
if len(params.Get("client_secret")) > 0 {
params.Set("client_secret", "REDACTED")
uri.RawQuery = params.Encode()
}
return uri
}
/*
An Error reports more details on an individual error in an ErrorResponse.
These are the possible validation error codes:
missing:
resource does not exist
missing_field:
a required field on a resource has not been set
invalid:
the formatting of a field is invalid
already_exists:
another resource has the same valid as this field
custom:
some resources return this (e.g. github.User.CreateKey()), additional
information is set in the Message field of the Error
GitHub error responses structure are often undocumented and inconsistent.
Sometimes error is just a simple string (Issue #540).
In such cases, Message represents an error message as a workaround.
GitHub API docs: https://docs.github.com/en/rest/#client-errors
*/
type Error struct {
Resource string `json:"resource"` // resource on which the error occurred
Field string `json:"field"` // field on which the error occurred
Code string `json:"code"` // validation error code
Message string `json:"message"` // Message describing the error. Errors with Code == "custom" will always have this set.
}
func (e *Error) Error() string {
return fmt.Sprintf("%v error caused by %v field on %v resource",
e.Code, e.Field, e.Resource)
}
func (e *Error) UnmarshalJSON(data []byte) error {
type aliasError Error // avoid infinite recursion by using type alias.
if err := json.Unmarshal(data, (*aliasError)(e)); err != nil {
return json.Unmarshal(data, &e.Message) // data can be json string.
}
return nil
}
// CheckResponse checks the API response for errors, and returns them if
// present. A response is considered an error if it has a status code outside
// the 200 range or equal to 202 Accepted.
// API error responses are expected to have response
// body, and a JSON response body that maps to ErrorResponse.
//
// The error type will be *RateLimitError for rate limit exceeded errors,
// *AcceptedError for 202 Accepted status codes,
// and *TwoFactorAuthError for two-factor authentication errors.
func CheckResponse(r *http.Response) error {
if r.StatusCode == http.StatusAccepted {
You can’t perform that action at this time.