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Dosya Düzenle: header_rules.go

// Copyright (C) MongoDB, Inc. 2017-present.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
//
// Based on github.com/aws/aws-sdk-go by Amazon.com, Inc. with code from:
// - github.com/aws/aws-sdk-go/blob/v1.44.225/aws/signer/v4/header_rules.go
// See THIRD-PARTY-NOTICES for original license terms

package v4

// validator houses a set of rule needed for validation of a
// string value
type rules []rule

// rule interface allows for more flexible rules and just simply
// checks whether or not a value adheres to that rule
type rule interface {
	IsValid(value string) bool
}

// IsValid will iterate through all rules and see if any rules
// apply to the value and supports nested rules
func (r rules) IsValid(value string) bool {
	for _, rule := range r {
		if rule.IsValid(value) {
			return true
		}
	}
	return false
}

// mapRule generic rule for maps
type mapRule map[string]struct{}

// IsValid for the map rule satisfies whether it exists in the map
func (m mapRule) IsValid(value string) bool {
	_, ok := m[value]
	return ok
}

// excludeList is a generic rule for exclude listing
type excludeList struct {
	rule
}

// IsValid for exclude list checks if the value is within the exclude list
func (b excludeList) IsValid(value string) bool {
	return !b.rule.IsValid(value)
}

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