50 lines
1.3 KiB
Go
50 lines
1.3 KiB
Go
package middleware
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import (
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"go.sia.tech/jape"
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"net/http"
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"strings"
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)
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type JapeMiddlewareFunc func(jape.Handler) jape.Handler
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type HttpMiddlewareFunc func(next http.Handler) http.Handler
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func AdaptMiddleware(mid func(http.Handler) http.Handler) JapeMiddlewareFunc {
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return jape.Adapt(func(h http.Handler) http.Handler {
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handler := mid(h)
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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handler.ServeHTTP(w, r)
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})
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})
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}
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// proxyMiddleware creates a new HTTP middleware for handling X-Forwarded-For headers.
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func proxyMiddleware(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if xff := r.Header.Get("X-Forwarded-For"); xff != "" {
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ips := strings.Split(xff, ", ")
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if len(ips) > 0 {
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r.RemoteAddr = ips[0]
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}
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}
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next.ServeHTTP(w, r)
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})
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}
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func ApplyMiddlewares(handler jape.Handler, middlewares ...interface{}) jape.Handler {
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for i := len(middlewares) - 1; i >= 0; i-- {
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switch middlewares[i].(type) {
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case JapeMiddlewareFunc:
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mid := middlewares[i].(JapeMiddlewareFunc)
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handler = mid(handler)
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case HttpMiddlewareFunc:
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mid := middlewares[i].(HttpMiddlewareFunc)
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handler = AdaptMiddleware(mid)(handler)
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default:
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panic("Invalid middleware type")
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}
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}
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return handler
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}
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