forked from grafana/grafana
-
Notifications
You must be signed in to change notification settings - Fork 0
/
guardian.go
250 lines (204 loc) · 6.28 KB
/
guardian.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
package guardian
import (
"errors"
"github.com/grafana/grafana/pkg/bus"
"github.com/grafana/grafana/pkg/log"
m "github.com/grafana/grafana/pkg/models"
"github.com/grafana/grafana/pkg/setting"
)
var (
ErrGuardianPermissionExists = errors.New("Permission already exists")
ErrGuardianOverride = errors.New("You can only override a permission to be higher")
)
// DashboardGuardian to be used for guard against operations without access on dashboard and acl
type DashboardGuardian interface {
CanSave() (bool, error)
CanEdit() (bool, error)
CanView() (bool, error)
CanAdmin() (bool, error)
HasPermission(permission m.PermissionType) (bool, error)
CheckPermissionBeforeUpdate(permission m.PermissionType, updatePermissions []*m.DashboardAcl) (bool, error)
GetAcl() ([]*m.DashboardAclInfoDTO, error)
}
type dashboardGuardianImpl struct {
user *m.SignedInUser
dashId int64
orgId int64
acl []*m.DashboardAclInfoDTO
groups []*m.Team
log log.Logger
}
// New factory for creating a new dashboard guardian instance
var New = func(dashId int64, orgId int64, user *m.SignedInUser) DashboardGuardian {
return &dashboardGuardianImpl{
user: user,
dashId: dashId,
orgId: orgId,
log: log.New("guardians.dashboard"),
}
}
func (g *dashboardGuardianImpl) CanSave() (bool, error) {
return g.HasPermission(m.PERMISSION_EDIT)
}
func (g *dashboardGuardianImpl) CanEdit() (bool, error) {
if setting.ViewersCanEdit {
return g.HasPermission(m.PERMISSION_VIEW)
}
return g.HasPermission(m.PERMISSION_EDIT)
}
func (g *dashboardGuardianImpl) CanView() (bool, error) {
return g.HasPermission(m.PERMISSION_VIEW)
}
func (g *dashboardGuardianImpl) CanAdmin() (bool, error) {
return g.HasPermission(m.PERMISSION_ADMIN)
}
func (g *dashboardGuardianImpl) HasPermission(permission m.PermissionType) (bool, error) {
if g.user.OrgRole == m.ROLE_ADMIN {
return true, nil
}
acl, err := g.GetAcl()
if err != nil {
return false, err
}
return g.checkAcl(permission, acl)
}
func (g *dashboardGuardianImpl) checkAcl(permission m.PermissionType, acl []*m.DashboardAclInfoDTO) (bool, error) {
orgRole := g.user.OrgRole
teamAclItems := []*m.DashboardAclInfoDTO{}
for _, p := range acl {
// user match
if !g.user.IsAnonymous {
if p.UserId == g.user.UserId && p.Permission >= permission {
return true, nil
}
}
// role match
if p.Role != nil {
if *p.Role == orgRole && p.Permission >= permission {
return true, nil
}
}
// remember this rule for later
if p.TeamId > 0 {
teamAclItems = append(teamAclItems, p)
}
}
// do we have team rules?
if len(teamAclItems) == 0 {
return false, nil
}
// load teams
teams, err := g.getTeams()
if err != nil {
return false, err
}
// evaluate team rules
for _, p := range acl {
for _, ug := range teams {
if ug.Id == p.TeamId && p.Permission >= permission {
return true, nil
}
}
}
return false, nil
}
func (g *dashboardGuardianImpl) CheckPermissionBeforeUpdate(permission m.PermissionType, updatePermissions []*m.DashboardAcl) (bool, error) {
acl := []*m.DashboardAclInfoDTO{}
adminRole := m.ROLE_ADMIN
everyoneWithAdminRole := &m.DashboardAclInfoDTO{DashboardId: g.dashId, UserId: 0, TeamId: 0, Role: &adminRole, Permission: m.PERMISSION_ADMIN}
// validate that duplicate permissions don't exists
for _, p := range updatePermissions {
aclItem := &m.DashboardAclInfoDTO{DashboardId: p.DashboardId, UserId: p.UserId, TeamId: p.TeamId, Role: p.Role, Permission: p.Permission}
if aclItem.IsDuplicateOf(everyoneWithAdminRole) {
return false, ErrGuardianPermissionExists
}
for _, a := range acl {
if a.IsDuplicateOf(aclItem) {
return false, ErrGuardianPermissionExists
}
}
acl = append(acl, aclItem)
}
existingPermissions, err := g.GetAcl()
if err != nil {
return false, err
}
// validate overridden permissions to be higher
for _, a := range acl {
for _, existingPerm := range existingPermissions {
if !existingPerm.Inherited {
continue
}
if a.IsDuplicateOf(existingPerm) && a.Permission <= existingPerm.Permission {
return false, ErrGuardianOverride
}
}
}
if g.user.OrgRole == m.ROLE_ADMIN {
return true, nil
}
return g.checkAcl(permission, existingPermissions)
}
// GetAcl returns dashboard acl
func (g *dashboardGuardianImpl) GetAcl() ([]*m.DashboardAclInfoDTO, error) {
if g.acl != nil {
return g.acl, nil
}
query := m.GetDashboardAclInfoListQuery{DashboardId: g.dashId, OrgId: g.orgId}
if err := bus.Dispatch(&query); err != nil {
return nil, err
}
g.acl = query.Result
return g.acl, nil
}
func (g *dashboardGuardianImpl) getTeams() ([]*m.Team, error) {
if g.groups != nil {
return g.groups, nil
}
query := m.GetTeamsByUserQuery{OrgId: g.orgId, UserId: g.user.UserId}
err := bus.Dispatch(&query)
g.groups = query.Result
return query.Result, err
}
type FakeDashboardGuardian struct {
DashId int64
OrgId int64
User *m.SignedInUser
CanSaveValue bool
CanEditValue bool
CanViewValue bool
CanAdminValue bool
HasPermissionValue bool
CheckPermissionBeforeUpdateValue bool
CheckPermissionBeforeUpdateError error
GetAclValue []*m.DashboardAclInfoDTO
}
func (g *FakeDashboardGuardian) CanSave() (bool, error) {
return g.CanSaveValue, nil
}
func (g *FakeDashboardGuardian) CanEdit() (bool, error) {
return g.CanEditValue, nil
}
func (g *FakeDashboardGuardian) CanView() (bool, error) {
return g.CanViewValue, nil
}
func (g *FakeDashboardGuardian) CanAdmin() (bool, error) {
return g.CanAdminValue, nil
}
func (g *FakeDashboardGuardian) HasPermission(permission m.PermissionType) (bool, error) {
return g.HasPermissionValue, nil
}
func (g *FakeDashboardGuardian) CheckPermissionBeforeUpdate(permission m.PermissionType, updatePermissions []*m.DashboardAcl) (bool, error) {
return g.CheckPermissionBeforeUpdateValue, g.CheckPermissionBeforeUpdateError
}
func (g *FakeDashboardGuardian) GetAcl() ([]*m.DashboardAclInfoDTO, error) {
return g.GetAclValue, nil
}
func MockDashboardGuardian(mock *FakeDashboardGuardian) {
New = func(dashId int64, orgId int64, user *m.SignedInUser) DashboardGuardian {
mock.OrgId = orgId
mock.DashId = dashId
mock.User = user
return mock
}
}