1. 1
2. 2
3. 3
4. 4
5. 5
6. 6
7. 7
8. 8
9. 9
10. 10
11. 11
12. 12
13. 13
14. 14
15. 15
16. 16
17. 17
18. 18
19. 19
20. 20
21. 21
22. 22
23. 23
24. 24
25. 25
26. 26
27. 27
28. 28
29. 29
30. 30
31. 31
32. 32
33. 33
34. 34
35. 35
36. 36
37. 37
38. 38
39. 39
40. 40
41. 41
42. 42
43. 43
44. 44
45. 45
46. 46
47. 47
48. 48
49. 49
50. 50
51. 51
52. 52
53. 53
54. 54
55. 55
56. 56
57. 57
58. 58
59. 59
60. 60
61. 61
62. 62
63. 63
64. 64
65. 65
66. 66
67. 67
68. 68
69. 69
70. 70
71. 71
72. 72
73. 73
74. 74
75. 75
76. 76
77. 77
78. 78
79. 79
80. 80
81. 81
82. 82
83. 83
84. 84

// Copyright 2016 The Gogs Authors. All rights reserved.
// Copyright 2020 The Gitea Authors.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.

package models

import (
	"context"
	"fmt"

	"code.gitea.io/gitea/models/db"
	issues_model "code.gitea.io/gitea/models/issues"
	access_model "code.gitea.io/gitea/models/perm/access"
	repo_model "code.gitea.io/gitea/models/repo"
	user_model "code.gitea.io/gitea/models/user"

	"xorm.io/builder"
)

// DeleteCollaboration removes collaboration relation between the user and repository.
func DeleteCollaboration(repo *repo_model.Repository, uid int64) (err error) {
	collaboration := &repo_model.Collaboration{
		RepoID: repo.ID,
		UserID: uid,
	}

	ctx, committer, err := db.TxContext()
	if err != nil {
		return err
	}
	defer committer.Close()

	if has, err := db.GetEngine(ctx).Delete(collaboration); err != nil || has == 0 {
		return err
	} else if err = access_model.RecalculateAccesses(ctx, repo); err != nil {
		return err
	}

	if err = repo_model.WatchRepo(ctx, uid, repo.ID, false); err != nil {
		return err
	}

	if err = reconsiderWatches(ctx, repo, uid); err != nil {
		return err
	}

	// Unassign a user from any issue (s)he has been assigned to in the repository
	if err := reconsiderRepoIssuesAssignee(ctx, repo, uid); err != nil {
		return err
	}

	return committer.Commit()
}

func reconsiderRepoIssuesAssignee(ctx context.Context, repo *repo_model.Repository, uid int64) error {
	user, err := user_model.GetUserByIDCtx(ctx, uid)
	if err != nil {
		return err
	}

	if canAssigned, err := access_model.CanBeAssigned(ctx, user, repo, true); err != nil || canAssigned {
		return err
	}

	if _, err := db.GetEngine(ctx).Where(builder.Eq{"assignee_id": uid}).
		In("issue_id", builder.Select("id").From("issue").Where(builder.Eq{"repo_id": repo.ID})).
		Delete(&issues_model.IssueAssignees{}); err != nil {
		return fmt.Errorf("Could not delete assignee[%d] %w", uid, err)
	}
	return nil
}

func reconsiderWatches(ctx context.Context, repo *repo_model.Repository, uid int64) error {
	if has, err := access_model.HasAccess(ctx, uid, repo); err != nil || has {
		return err
	}
	if err := repo_model.WatchRepo(ctx, uid, repo.ID, false); err != nil {
		return err
	}

	// Remove all IssueWatches a user has subscribed to in the repository
	return issues_model.RemoveIssueWatchersByRepoID(ctx, uid, repo.ID)
}