47 lines
994 B
Go
47 lines
994 B
Go
package controllers
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import (
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"log"
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"net/http"
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"time"
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)
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type Middleware func(http.Handler) http.Handler
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var (
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MiddlewaresChain = createMiddlewaresChain(
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loggingMiddleware,
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)
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)
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/*
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Возвращает один middleware, который объединяет все переданные
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createMiddlewaresChain(m1, m2, m3)
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= func(next http.Handler) http.Handler { return m1(m2(m3(final))) }
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*/
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func createMiddlewaresChain(middlewares ...Middleware) Middleware {
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return func(final http.Handler) http.Handler {
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for i := len(middlewares) - 1; i >= 0; i-- {
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final = middlewares[i](final)
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}
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return final
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}
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}
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func loggingMiddleware(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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start := time.Now()
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next.ServeHTTP(w, r)
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fullURL := r.URL.String()
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log.Printf("%s %s | client: %s | duration: %v",
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r.Method,
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fullURL,
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r.RemoteAddr,
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time.Since(start))
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})
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}
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