github.com/mendersoftware/go-lib-micro@v0.0.0-20240304135804-e8e39c59b148/identity/utils.go (about)

     1  // Copyright 2023 Northern.tech AS
     2  //
     3  //	Licensed under the Apache License, Version 2.0 (the "License");
     4  //	you may not use this file except in compliance with the License.
     5  //	You may obtain a copy of the License at
     6  //
     7  //	    http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  //	Unless required by applicable law or agreed to in writing, software
    10  //	distributed under the License is distributed on an "AS IS" BASIS,
    11  //	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  //	See the License for the specific language governing permissions and
    13  //	limitations under the License.
    14  package identity
    15  
    16  import (
    17  	"context"
    18  )
    19  
    20  type identityContextKeyType int
    21  
    22  const (
    23  	identityContextKey identityContextKeyType = 0
    24  )
    25  
    26  // FromContext extracts current identity from context.Context
    27  func FromContext(ctx context.Context) *Identity {
    28  	val := ctx.Value(identityContextKey)
    29  	if v, ok := val.(*Identity); ok {
    30  		return v
    31  	}
    32  	return nil
    33  }
    34  
    35  // WithContext adds identity to context `ctx` and returns the resulting context.
    36  func WithContext(ctx context.Context, identity *Identity) context.Context {
    37  	return context.WithValue(ctx, identityContextKey, identity)
    38  }