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// Copyright 2021 Northern.tech AS
//
// 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 rbac
import (
"context"
"net/http"
"strings"
)
type scopeContextKeyType int
const (
scopeContextKey scopeContextKeyType = 0
ScopeHeader = "X-MEN-RBAC-Inventory-Groups"
)
type Scope struct {
DeviceGroups []string
}
// FromContext extracts current scope from context.Context
func FromContext(ctx context.Context) *Scope {
val := ctx.Value(scopeContextKey)
if v, ok := val.(*Scope); ok {
return v
}
return nil
}
// WithContext adds scope to context `ctx` and returns the resulting context.
func WithContext(ctx context.Context, scope *Scope) context.Context {
return context.WithValue(ctx, scopeContextKey, scope)
}
func ExtractScopeFromHeader(r *http.Request) *Scope {
groupStr := r.Header.Get(ScopeHeader)
if len(groupStr) > 0 {
return &Scope{DeviceGroups: strings.Split(groupStr, ",")}
}
return nil
}
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