/
authorization.go
120 lines (103 loc) · 4.32 KB
/
authorization.go
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/*
* Tencent is pleased to support the open source community by making TKEStack
* available.
*
* Copyright (C) 2012-2019 Tencent. All Rights Reserved.
*
* 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
*
* https://opensource.org/licenses/Apache-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 OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*/
package authentication
import (
"context"
"k8s.io/apiserver/pkg/authentication/user"
"k8s.io/apiserver/pkg/authorization/authorizer"
registryv1 "tkestack.io/tke/api/registry/v1"
"tkestack.io/tke/pkg/apiserver/filter"
authfilter "tkestack.io/tke/pkg/auth/filter"
"tkestack.io/tke/pkg/util/log"
)
// ConvertTKEAttributesForChart combines the API object information and the user.Info from the context to build a full authorizer.AttributesRecord for resource access.
func ConvertTKEAttributesForChart(ctx context.Context, u user.Info, verb string, cg registryv1.ChartGroup, chartName string) (in authorizer.Attributes, err error) {
attribs := authorizer.AttributesRecord{}
attribs.User = u
// If ChartGroup belongs to project, set user extra group
if cg.Spec.Visibility == registryv1.VisibilityProject && len(cg.Spec.Projects) > 0 {
if userInfo, ok := u.(*user.DefaultInfo); ok {
userInfo.Groups = append(userInfo.Groups, filter.GroupWithProject(cg.Spec.Projects[0]))
attribs.User = userInfo
}
}
// Start with common attributes that apply to resource and non-resource requests
attribs.ResourceRequest = true
attribs.Verb = verb
attribs.APIGroup = registryv1.GroupName
attribs.APIVersion = registryv1.Version
attribs.Resource = "charts"
attribs.Subresource = ""
attribs.Namespace = cg.Name
attribs.Name = chartName
tkeAttributes := authfilter.ConvertTKEAttributes(ctx, &attribs)
return tkeAttributes, nil
}
// ConvertTKEAttributesForChartGroup combines the API object information and the user.Info from the context to build a full authorizer.AttributesRecord for resource access.
func ConvertTKEAttributesForChartGroup(ctx context.Context, u user.Info, verb string, cg registryv1.ChartGroup) (in authorizer.Attributes, err error) {
attribs := authorizer.AttributesRecord{}
attribs.User = u
// If ChartGroup belongs to project, set user extra group
if cg.Spec.Visibility == registryv1.VisibilityProject && len(cg.Spec.Projects) > 0 {
if userInfo, ok := u.(*user.DefaultInfo); ok {
userInfo.Groups = append(userInfo.Groups, filter.GroupWithProject(cg.Spec.Projects[0]))
attribs.User = userInfo
}
}
// Start with common attributes that apply to resource and non-resource requests
attribs.ResourceRequest = true
attribs.Verb = verb
attribs.APIGroup = registryv1.GroupName
attribs.APIVersion = registryv1.Version
attribs.Resource = "chartgroups"
attribs.Subresource = ""
attribs.Namespace = ""
attribs.Name = cg.Name
tkeAttributes := authfilter.ConvertTKEAttributes(ctx, &attribs)
return tkeAttributes, nil
}
// AuthorizeForChart check if chart resource is authorized
func AuthorizeForChart(ctx context.Context, u user.Info, authzer authorizer.Authorizer, verb string, cg registryv1.ChartGroup, chartName string) (passed bool, err error) {
tkeAttributes, err := ConvertTKEAttributesForChart(ctx, u, verb, cg, chartName)
if err != nil {
return false, err
}
authorized, reason, err := authzer.Authorize(ctx, tkeAttributes)
if err != nil {
return false, err
}
if authorized != authorizer.DecisionAllow {
log.Warn(reason)
}
return authorized == authorizer.DecisionAllow, nil
}
// AuthorizeForChartGroup check if chartgroup resource is authorized
func AuthorizeForChartGroup(ctx context.Context, u user.Info, authzer authorizer.Authorizer, verb string, cg registryv1.ChartGroup) (passed bool, err error) {
tkeAttributes, err := ConvertTKEAttributesForChartGroup(ctx, u, verb, cg)
if err != nil {
return false, err
}
authorized, reason, err := authzer.Authorize(ctx, tkeAttributes)
if err != nil {
return false, err
}
if authorized != authorizer.DecisionAllow {
log.Warn(reason)
}
return authorized == authorizer.DecisionAllow, nil
}