-
Notifications
You must be signed in to change notification settings - Fork 1.7k
/
access.go
193 lines (170 loc) · 6.1 KB
/
access.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
/*
Copyright 2021 Gravitational, Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package auth
import (
"context"
"errors"
"slices"
"time"
"github.com/gravitational/trace"
"github.com/gravitational/teleport/api/types"
"github.com/gravitational/teleport/api/types/accesslist"
apievents "github.com/gravitational/teleport/api/types/events"
"github.com/gravitational/teleport/lib/authz"
"github.com/gravitational/teleport/lib/events"
)
// UpsertRole creates or updates a role and emits a related audit event.
func (a *Server) UpsertRole(ctx context.Context, role types.Role) error {
if err := a.Services.UpsertRole(ctx, role); err != nil {
return trace.Wrap(err)
}
if err := a.emitter.EmitAuditEvent(a.closeCtx, &apievents.RoleCreate{
Metadata: apievents.Metadata{
Type: events.RoleCreatedEvent,
Code: events.RoleCreatedCode,
},
UserMetadata: authz.ClientUserMetadata(ctx),
ResourceMetadata: apievents.ResourceMetadata{
Name: role.GetName(),
},
ConnectionMetadata: authz.ConnectionMetadata(ctx),
}); err != nil {
log.WithError(err).Warnf("Failed to emit role create event.")
}
return nil
}
var (
errDeleteRoleUser = errors.New("failed to delete a role that is still in use by a user, check the system server logs for more details")
errDeleteRoleCA = errors.New("failed to delete a role that is still in use by a certificate authority, check the system server logs for more details")
errDeleteRoleAccessList = errors.New("failed to delete a role that is still in use by an access list, check the system server logs for more details")
)
// DeleteRole deletes a role and emits a related audit event.
func (a *Server) DeleteRole(ctx context.Context, name string) error {
// check if this role is used by CA or Users
users, err := a.Services.GetUsers(false)
if err != nil {
return trace.Wrap(err)
}
for _, u := range users {
if slices.Contains(u.GetRoles(), name) {
// Mask the actual error here as it could be used to enumerate users
// within the system.
log.Warnf("Failed to delete role: role %v is used by user %v.", name, u.GetName())
return trace.Wrap(errDeleteRoleUser)
}
}
// check if it's used by some external cert authorities, e.g.
// cert authorities related to external cluster
cas, err := a.Services.GetCertAuthorities(ctx, types.UserCA, false)
if err != nil {
return trace.Wrap(err)
}
for _, a := range cas {
if slices.Contains(a.GetRoles(), name) {
// Mask the actual error here as it could be used to enumerate users
// within the system.
log.Warnf("Failed to delete role: role %v is used by user cert authority %v", name, a.GetClusterName())
return trace.Wrap(errDeleteRoleCA)
}
}
var nextToken string
for {
var accessLists []*accesslist.AccessList
var err error
accessLists, nextToken, err = a.Services.AccessListClient().ListAccessLists(ctx, 0 /* default page size */, nextToken)
if err != nil {
return trace.Wrap(err)
}
for _, accessList := range accessLists {
if slices.Contains(accessList.Spec.Grants.Roles, name) {
log.Warnf("Failed to delete role: role %v is granted by access list %s", name, accessList.GetName())
return trace.Wrap(errDeleteRoleAccessList)
}
if slices.Contains(accessList.Spec.MembershipRequires.Roles, name) {
log.Warnf("Failed to delete role: role %v is required by members of access list %s", name, accessList.GetName())
return trace.Wrap(errDeleteRoleAccessList)
}
if slices.Contains(accessList.Spec.OwnershipRequires.Roles, name) {
log.Warnf("Failed to delete role: role %v is required by owners of access list %s", name, accessList.GetName())
return trace.Wrap(errDeleteRoleAccessList)
}
}
if nextToken == "" {
break
}
}
if err := a.Services.DeleteRole(ctx, name); err != nil {
return trace.Wrap(err)
}
if err := a.emitter.EmitAuditEvent(a.closeCtx, &apievents.RoleDelete{
Metadata: apievents.Metadata{
Type: events.RoleDeletedEvent,
Code: events.RoleDeletedCode,
},
UserMetadata: authz.ClientUserMetadata(ctx),
ResourceMetadata: apievents.ResourceMetadata{
Name: name,
},
ConnectionMetadata: authz.ConnectionMetadata(ctx),
}); err != nil {
log.WithError(err).Warnf("Failed to emit role delete event.")
}
return nil
}
// UpsertLock upserts a lock and emits a related audit event.
func (a *Server) UpsertLock(ctx context.Context, lock types.Lock) error {
if err := a.Services.UpsertLock(ctx, lock); err != nil {
return trace.Wrap(err)
}
var expiresTime time.Time
// leave as 0 if no lock expiration was set
if le := lock.LockExpiry(); le != nil {
expiresTime = le.UTC()
}
um := authz.ClientUserMetadata(ctx)
if err := a.emitter.EmitAuditEvent(a.closeCtx, &apievents.LockCreate{
Metadata: apievents.Metadata{
Type: events.LockCreatedEvent,
Code: events.LockCreatedCode,
},
UserMetadata: um,
ResourceMetadata: apievents.ResourceMetadata{
Name: lock.GetName(),
Expires: expiresTime,
UpdatedBy: um.User,
},
Target: lock.Target(),
}); err != nil {
log.WithError(err).Warning("Failed to emit lock create event.")
}
return nil
}
// DeleteLock deletes a lock and emits a related audit event.
func (a *Server) DeleteLock(ctx context.Context, lockName string) error {
if err := a.Services.DeleteLock(ctx, lockName); err != nil {
return trace.Wrap(err)
}
if err := a.emitter.EmitAuditEvent(a.closeCtx, &apievents.LockDelete{
Metadata: apievents.Metadata{
Type: events.LockDeletedEvent,
Code: events.LockDeletedCode,
},
UserMetadata: authz.ClientUserMetadata(ctx),
ResourceMetadata: apievents.ResourceMetadata{
Name: lockName,
},
}); err != nil {
log.WithError(err).Warning("Failed to emit lock delete event.")
}
return nil
}