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79 lines
2.0 KiB
79 lines
2.0 KiB
package proxy
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import (
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"context"
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"v2ray.com/core/common/net"
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)
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type key int
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const (
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sourceKey key = iota
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targetKey
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originalTargetKey
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inboundEntryPointKey
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inboundTagKey
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resolvedIPsKey
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)
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// ContextWithSource creates a new context with given source.
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func ContextWithSource(ctx context.Context, src net.Destination) context.Context {
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return context.WithValue(ctx, sourceKey, src)
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}
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// SourceFromContext retrieves source from the given context.
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func SourceFromContext(ctx context.Context) (net.Destination, bool) {
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v, ok := ctx.Value(sourceKey).(net.Destination)
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return v, ok
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}
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func ContextWithOriginalTarget(ctx context.Context, dest net.Destination) context.Context {
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return context.WithValue(ctx, originalTargetKey, dest)
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}
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func OriginalTargetFromContext(ctx context.Context) (net.Destination, bool) {
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v, ok := ctx.Value(originalTargetKey).(net.Destination)
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return v, ok
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}
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func ContextWithTarget(ctx context.Context, dest net.Destination) context.Context {
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return context.WithValue(ctx, targetKey, dest)
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}
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func TargetFromContext(ctx context.Context) (net.Destination, bool) {
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v, ok := ctx.Value(targetKey).(net.Destination)
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return v, ok
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}
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func ContextWithInboundEntryPoint(ctx context.Context, dest net.Destination) context.Context {
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return context.WithValue(ctx, inboundEntryPointKey, dest)
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}
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func InboundEntryPointFromContext(ctx context.Context) (net.Destination, bool) {
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v, ok := ctx.Value(inboundEntryPointKey).(net.Destination)
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return v, ok
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}
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func ContextWithInboundTag(ctx context.Context, tag string) context.Context {
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return context.WithValue(ctx, inboundTagKey, tag)
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}
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func InboundTagFromContext(ctx context.Context) (string, bool) {
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v, ok := ctx.Value(inboundTagKey).(string)
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return v, ok
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}
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type IPResolver interface {
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Resolve() []net.Address
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}
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func ContextWithResolveIPs(ctx context.Context, f IPResolver) context.Context {
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return context.WithValue(ctx, resolvedIPsKey, f)
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}
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func ResolvedIPsFromContext(ctx context.Context) (IPResolver, bool) {
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ips, ok := ctx.Value(resolvedIPsKey).(IPResolver)
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return ips, ok
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}
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