github.com/codingfuture/orig-energi3@v0.8.4/swarm/sctx/sctx.go (about)

     1  // Copyright 2018 The Energi Core Authors
     2  // Copyright 2018 The go-ethereum Authors
     3  // This file is part of the Energi Core library.
     4  //
     5  // The Energi Core library is free software: you can redistribute it and/or modify
     6  // it under the terms of the GNU Lesser General Public License as published by
     7  // the Free Software Foundation, either version 3 of the License, or
     8  // (at your option) any later version.
     9  //
    10  // The Energi Core library is distributed in the hope that it will be useful,
    11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    13  // GNU Lesser General Public License for more details.
    14  //
    15  // You should have received a copy of the GNU Lesser General Public License
    16  // along with the Energi Core library. If not, see <http://www.gnu.org/licenses/>.
    17  
    18  package sctx
    19  
    20  import "context"
    21  
    22  type (
    23  	HTTPRequestIDKey struct{}
    24  	requestHostKey   struct{}
    25  )
    26  
    27  func SetHost(ctx context.Context, domain string) context.Context {
    28  	return context.WithValue(ctx, requestHostKey{}, domain)
    29  }
    30  
    31  func GetHost(ctx context.Context) string {
    32  	v, ok := ctx.Value(requestHostKey{}).(string)
    33  	if ok {
    34  		return v
    35  	}
    36  	return ""
    37  }