27 lines
545 B
Go
27 lines
545 B
Go
package main
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import (
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"net/http"
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"strings"
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)
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func strictReferrerCheck(r *http.Request, prefix string, whitelistHeaders []string) bool {
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p := strings.TrimSuffix(prefix, "/")
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if origin := r.Header.Get("Origin"); origin != "" {
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// if there's an Origin header, check it and ignore the rest
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return strings.HasPrefix(origin, p)
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}
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for _, header := range whitelistHeaders {
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if r.Header.Get(header) != "" {
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return true
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}
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}
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if referrer := r.Header.Get("Referer"); !strings.HasPrefix(referrer, p) {
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return false
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}
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return true
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}
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