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29 lines
1 KiB
Go
29 lines
1 KiB
Go
package middleware
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import (
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"net/http"
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"golang.org/x/net/context"
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)
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// ExperimentalMiddleware is a the middleware in charge of adding the
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// 'Docker-Experimental' header to every outgoing request
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type ExperimentalMiddleware struct {
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experimental string
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}
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// NewExperimentalMiddleware creates a new ExperimentalMiddleware
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func NewExperimentalMiddleware(experimentalEnabled bool) ExperimentalMiddleware {
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if experimentalEnabled {
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return ExperimentalMiddleware{"true"}
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}
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return ExperimentalMiddleware{"false"}
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}
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// WrapHandler returns a new handler function wrapping the previous one in the request chain.
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func (e ExperimentalMiddleware) WrapHandler(handler func(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error) func(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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return func(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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w.Header().Set("Docker-Experimental", e.experimental)
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return handler(ctx, w, r, vars)
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}
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}
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