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29 lines
807 B
Go
29 lines
807 B
Go
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package server
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import "github.com/miekg/coredns/middleware"
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// zone represents a DNS zone. While a Server
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// is what actually binds to the address, a user may want to serve
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// multiple zones on a single address, and this is what a
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// zone allows us to do.
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type zone struct {
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config Config
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stack middleware.Handler
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}
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// buildStack builds the server's middleware stack based
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// on its config. This method should be called last before
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// ListenAndServe begins.
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func (z *zone) buildStack() error {
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z.compile(z.config.Middleware)
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return nil
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}
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// compile is an elegant alternative to nesting middleware function
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// calls like handler1(handler2(handler3(finalHandler))).
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func (z *zone) compile(layers []middleware.Middleware) {
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for i := len(layers) - 1; i >= 0; i-- {
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z.stack = layers[i](z.stack)
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}
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}
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