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29 lines
726 B
Go
29 lines
726 B
Go
package handler
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import (
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"net/http"
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"github.com/tal-tech/go-zero/rest/internal"
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)
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// MaxBytesHandler returns a middleware that limit reading of http request body.
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func MaxBytesHandler(n int64) func(http.Handler) http.Handler {
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if n <= 0 {
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return func(next http.Handler) http.Handler {
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return next
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}
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}
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return func(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if r.ContentLength > n {
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internal.Errorf(r, "request entity too large, limit is %d, but got %d, rejected with code %d",
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n, r.ContentLength, http.StatusRequestEntityTooLarge)
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w.WriteHeader(http.StatusRequestEntityTooLarge)
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} else {
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next.ServeHTTP(w, r)
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}
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})
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}
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}
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