/
poweredbyheader.go
60 lines (51 loc) · 1.39 KB
/
poweredbyheader.go
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package middleware
import (
"net/http"
"go.uber.org/zap"
keelhttp "github.com/foomo/keel/net/http"
)
type (
PoweredByHeaderOptions struct {
Header string
Message string
}
PoweredByHeaderOption func(*PoweredByHeaderOptions)
)
// GetDefaultPoweredByHeaderOptions returns the default options
func GetDefaultPoweredByHeaderOptions() PoweredByHeaderOptions {
return PoweredByHeaderOptions{
Header: keelhttp.HeaderXPoweredBy,
Message: "a lot of LOVE",
}
}
// PoweredByHeader middleware
func PoweredByHeader(opts ...PoweredByHeaderOption) Middleware {
options := GetDefaultPoweredByHeaderOptions()
for _, opt := range opts {
if opt != nil {
opt(&options)
}
}
return PoweredByHeaderWithOptions(options)
}
// PoweredByHeaderWithHeader middleware option
func PoweredByHeaderWithHeader(v string) PoweredByHeaderOption {
return func(o *PoweredByHeaderOptions) {
o.Header = v
}
}
// PoweredByHeaderWithMessage middleware option
func PoweredByHeaderWithMessage(v string) PoweredByHeaderOption {
return func(o *PoweredByHeaderOptions) {
o.Message = v
}
}
// PoweredByHeaderWithOptions middleware
func PoweredByHeaderWithOptions(opts PoweredByHeaderOptions) Middleware {
return func(l *zap.Logger, name string, next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Header().Add(opts.Header, name)
next.ServeHTTP(w, r)
})
}
}