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context_permissioner.go
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/
context_permissioner.go
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package admin
import (
"reflect"
"github.com/ecletus/roles"
)
func (this *Context) DefaultDenyMode() bool {
if this.Roles.Has(roles.Anyone) {
return false
}
return this.Admin.DefaultDenyMode
}
func (this *Context) HasPermission(permissioner Permissioner, mode roles.PermissionMode, modeN ...roles.PermissionMode) (ok bool) {
if res, ok := permissioner.(*Resource); ok {
if ok := res.ControllerBuilder.HasModes(mode, modeN...); ok != nil && !*ok {
return false
}
if mode == roles.Create {
if res.Config.CreationAllowed != nil && !res.Config.CreationAllowed(this) {
return false
}
}
}
if rp, ok := permissioner.(RecordPermissioner); ok && this.Result != nil && indirectType(reflect.TypeOf(this.Result)).Kind() == reflect.Struct {
if perm := rp.AdminHasRecordPermission(mode, this, this.Result); perm != roles.UNDEF {
return perm.Allow()
}
}
if this.IsSuperUser() {
return true
}
if perm := permissioner.AdminHasPermission(mode, this); perm != roles.UNDEF {
return perm.Allow()
}
for _, mode := range modeN {
if perm := permissioner.AdminHasPermission(mode, this); perm != roles.UNDEF {
return perm.Allow()
}
}
if _, ok := permissioner.(*Meta); ok {
return true
}
ok = !this.DefaultDenyMode()
return
}
func (this *Context) HasRecordPermission(resource *Resource, record interface{}, mode roles.PermissionMode) (ok bool) {
if !this.HasPermission(resource, mode) {
return false
}
if perm := resource.AdminHasRecordPermission(mode, this, record); perm == roles.UNDEF {
return true
} else {
return perm.Allow()
}
}
func (this *Context) HasAnyPermission(permissioner Permissioner, mode ...roles.PermissionMode) (ok bool) {
return this.HasAnyPermissionDefault(permissioner, !this.DefaultDenyMode(), mode...)
}
func (this *Context) HasAnyPermissionDefault(permissioner Permissioner, defaul bool, mode ...roles.PermissionMode) (ok bool) {
if res, ok := permissioner.(*Resource); ok {
if ok := res.ControllerBuilder.HasModes(mode[0], mode[1:]...); ok != nil && !*ok {
return false
}
}
if this.IsSuperUser() {
return true
}
for _, mode := range mode {
if perm := permissioner.AdminHasPermission(mode, this); perm != roles.UNDEF {
return perm.Allow()
}
}
return defaul
}
func (this *Context) HasRolePermission(permissioner roles.Permissioner, mode roles.PermissionMode, modeN ...roles.PermissionMode) (ok bool) {
if this.IsSuperUser() {
return true
}
if perm := permissioner.HasPermission(this, mode); perm != roles.UNDEF {
return perm.Allow()
}
for _, mode := range modeN {
if perm := permissioner.HasPermission(this, mode); perm != roles.UNDEF {
return perm.Allow()
}
}
return !this.DefaultDenyMode()
}
func (this *Context) hasCreatePermission(permissioner Permissioner) bool {
return this.HasPermission(permissioner, roles.Create)
}
func (this *Context) hasReadPermission(permissioner Permissioner) bool {
return this.HasPermission(permissioner, roles.Read)
}
func (this *Context) hasUpdatePermission(permissioner Permissioner) bool {
return this.HasPermission(permissioner, roles.Update)
}
func (this *Context) hasDeletePermission(permissioner Permissioner) bool {
return this.HasPermission(permissioner, roles.Delete)
}
func (this *Context) readPermissionFilter(permissioners []Permissioner, result ...interface{}) (filtered []interface{}) {
if len(result) > 0 {
defer this.WithResult(result[0])()
}
for _, permissioner := range permissioners {
if ok := this.HasPermission(permissioner, roles.Read); ok {
filtered = append(filtered, permissioner)
}
}
return
}
// AllowedActions return allowed actions based on context
func (this *Context) AllowedActions(actions []*Action, mode string, records ...interface{}) []*Action {
var allowedActions []*Action
for _, action := range actions {
if len(action.Modes) > 0 {
var ok bool
for _, m := range action.Modes {
if m == mode {
ok = true
break
}
}
if !ok {
continue
}
}
if action.IsAllowed(this, records...) {
allowedActions = append(allowedActions, action)
}
}
return Actions(allowedActions).Sort()
}
type ContextPermissioner interface {
AdminHasContextPermission(mode roles.PermissionMode, ctx *Context) (perm roles.Perm)
}