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30 lines
672 B
Go
30 lines
672 B
Go
package rest
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const xPoweredByDefault = "go-json-rest"
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// PoweredByMiddleware adds the "X-Powered-By" header to the HTTP response.
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type PoweredByMiddleware struct {
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// If specified, used as the value for the "X-Powered-By" response header.
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// Defaults to "go-json-rest".
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XPoweredBy string
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}
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// MiddlewareFunc makes PoweredByMiddleware implement the Middleware interface.
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func (mw *PoweredByMiddleware) MiddlewareFunc(h HandlerFunc) HandlerFunc {
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poweredBy := xPoweredByDefault
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if mw.XPoweredBy != "" {
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poweredBy = mw.XPoweredBy
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}
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return func(w ResponseWriter, r *Request) {
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w.Header().Add("X-Powered-By", poweredBy)
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// call the handler
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h(w, r)
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}
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}
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