github.com/Uhtred009/v2ray-core-1@v4.31.2+incompatible/common/session/context.go (about)

     1  package session
     2  
     3  import "context"
     4  
     5  type sessionKey int
     6  
     7  const (
     8  	idSessionKey sessionKey = iota
     9  	inboundSessionKey
    10  	outboundSessionKey
    11  	contentSessionKey
    12  	muxPreferedSessionKey
    13  	sockoptSessionKey
    14  )
    15  
    16  // ContextWithID returns a new context with the given ID.
    17  func ContextWithID(ctx context.Context, id ID) context.Context {
    18  	return context.WithValue(ctx, idSessionKey, id)
    19  }
    20  
    21  // IDFromContext returns ID in this context, or 0 if not contained.
    22  func IDFromContext(ctx context.Context) ID {
    23  	if id, ok := ctx.Value(idSessionKey).(ID); ok {
    24  		return id
    25  	}
    26  	return 0
    27  }
    28  
    29  func ContextWithInbound(ctx context.Context, inbound *Inbound) context.Context {
    30  	return context.WithValue(ctx, inboundSessionKey, inbound)
    31  }
    32  
    33  func InboundFromContext(ctx context.Context) *Inbound {
    34  	if inbound, ok := ctx.Value(inboundSessionKey).(*Inbound); ok {
    35  		return inbound
    36  	}
    37  	return nil
    38  }
    39  
    40  func ContextWithOutbound(ctx context.Context, outbound *Outbound) context.Context {
    41  	return context.WithValue(ctx, outboundSessionKey, outbound)
    42  }
    43  
    44  func OutboundFromContext(ctx context.Context) *Outbound {
    45  	if outbound, ok := ctx.Value(outboundSessionKey).(*Outbound); ok {
    46  		return outbound
    47  	}
    48  	return nil
    49  }
    50  
    51  func ContextWithContent(ctx context.Context, content *Content) context.Context {
    52  	return context.WithValue(ctx, contentSessionKey, content)
    53  }
    54  
    55  func ContentFromContext(ctx context.Context) *Content {
    56  	if content, ok := ctx.Value(contentSessionKey).(*Content); ok {
    57  		return content
    58  	}
    59  	return nil
    60  }
    61  
    62  // ContextWithMuxPrefered returns a new context with the given bool
    63  func ContextWithMuxPrefered(ctx context.Context, forced bool) context.Context {
    64  	return context.WithValue(ctx, muxPreferedSessionKey, forced)
    65  }
    66  
    67  // MuxPreferedFromContext returns value in this context, or false if not contained.
    68  func MuxPreferedFromContext(ctx context.Context) bool {
    69  	if val, ok := ctx.Value(muxPreferedSessionKey).(bool); ok {
    70  		return val
    71  	}
    72  	return false
    73  }
    74  
    75  // ContextWithSockopt returns a new context with Socket configs included
    76  func ContextWithSockopt(ctx context.Context, s *Sockopt) context.Context {
    77  	return context.WithValue(ctx, sockoptSessionKey, s)
    78  }
    79  
    80  // SockoptFromContext returns Socket configs in this context, or nil if not contained.
    81  func SockoptFromContext(ctx context.Context) *Sockopt {
    82  	if sockopt, ok := ctx.Value(sockoptSessionKey).(*Sockopt); ok {
    83  		return sockopt
    84  	}
    85  	return nil
    86  }