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roleaccess.go
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roleaccess.go
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package ui
import (
"time"
teleservices "github.com/gravitational/teleport/lib/services"
teleutils "github.com/gravitational/teleport/lib/utils"
)
const (
inviteStatus = "invited"
activeStatus = "active"
userTypeToHide = "agent"
roleDefaultAllowedLogin = "!invalid!"
)
var adminResources = []string{
teleservices.KindRole,
teleservices.KindUser,
teleservices.KindOIDC,
teleservices.KindCertAuthority,
teleservices.KindReverseTunnel,
teleservices.KindTrustedCluster,
}
// AdminAccess describes admin access
type AdminAccess struct {
// Enabled indicates if access is enabled
Enabled bool `json:"enabled"`
}
// SSHAccess describes shh access
type SSHAccess struct {
// Logins is a list of allowed logins
Logins []string `json:"logins"`
// MaxSessionTTL is max session TLL
MaxSessionTTL time.Duration `json:"maxTtl"`
// NodeLabels
NodeLabels map[string]string `json:"nodeLabels"`
}
// RoleAccess describes a set of role permissions
type RoleAccess struct {
// Admin describes admin access
Admin AdminAccess `json:"admin"`
// SSH describes SSH access
SSH SSHAccess `json:"ssh"`
}
// MergeAccessSet merges a set of roles by strongest permission
func MergeAccessSet(accessList []*RoleAccess) *RoleAccess {
uiAccess := RoleAccess{}
for _, item := range accessList {
uiAccess.SSH.Logins = teleutils.Deduplicate(append(uiAccess.SSH.Logins, item.SSH.Logins...))
uiAccess.Admin.Enabled = item.Admin.Enabled || uiAccess.Admin.Enabled
}
return &uiAccess
}
// Apply applies this role access to Teleport Role
func (a *RoleAccess) Apply(teleRole teleservices.Role) {
a.applyAdmin(teleRole)
a.applySSH(teleRole)
}
func (a *RoleAccess) init(teleRole teleservices.Role) {
a.initAdmin(teleRole)
a.initSSH(teleRole)
}
func (a *RoleAccess) initSSH(teleRole teleservices.Role) {
a.SSH.MaxSessionTTL = teleRole.GetMaxSessionTTL().Duration
a.SSH.NodeLabels = teleRole.GetNodeLabels()
// FIXME: this is a workaround for #1623
filteredLogins := []string{}
for _, login := range teleRole.GetLogins() {
if login != roleDefaultAllowedLogin {
filteredLogins = append(filteredLogins, login)
}
}
a.SSH.Logins = filteredLogins
}
func (a *RoleAccess) initAdmin(teleRole teleservices.Role) {
hasAllNamespaces := teleservices.MatchNamespace(
teleRole.GetNamespaces(),
teleservices.Wildcard)
resources := teleRole.GetResources()
a.Admin.Enabled = hasFullAccess(resources, adminResources) && hasAllNamespaces
}
func (a *RoleAccess) applyAdmin(teleRole teleservices.Role) {
if a.Admin.Enabled {
allowAllNamespaces(teleRole)
applyResourceAccess(teleRole, adminResources, teleservices.RW())
} else {
teleRole.RemoveResource(teleservices.Wildcard)
applyResourceAccess(teleRole, adminResources, teleservices.RO())
}
}
func (a *RoleAccess) applySSH(teleRole teleservices.Role) {
// FIXME: this is a workaround for #1623
if len(a.SSH.Logins) == 0 {
a.SSH.Logins = append(a.SSH.Logins, roleDefaultAllowedLogin)
}
teleRole.SetMaxSessionTTL(a.SSH.MaxSessionTTL)
teleRole.SetLogins(a.SSH.Logins)
teleRole.SetNodeLabels(a.SSH.NodeLabels)
}
func all() []string {
return []string{teleservices.Wildcard}
}
func allowAllNamespaces(teleRole teleservices.Role) {
newNamespaces := teleutils.Deduplicate(append(teleRole.GetNamespaces(), all()...))
teleRole.SetNamespaces(newNamespaces)
}
func none() []string {
return nil
}
func hasFullAccess(resources map[string][]string, kinds []string) bool {
for _, kind := range kinds {
hasRead := teleservices.MatchResourceAction(
resources,
kind,
teleservices.ActionRead)
hasWrite := teleservices.MatchResourceAction(
resources,
kind,
teleservices.ActionWrite)
if !(hasRead && hasWrite) {
return false
}
}
return true
}
func applyResourceAccess(teleRole teleservices.Role, kinds []string, actions []string) {
for _, kind := range kinds {
teleRole.SetResource(kind, actions)
}
}