tracker/middleware/deniability/config.go

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2016-04-02 21:42:31 +02:00
// Copyright 2016 The Chihaya Authors. All rights reserved.
// Use of this source code is governed by the BSD 2-Clause license,
// which can be found in the LICENSE file.
package deniability
import (
"gopkg.in/yaml.v2"
"github.com/chihaya/chihaya"
)
// Config represents the configuration for the deniability middleware.
type Config struct {
// ModifyResponseProbability is the probability by which a response will
// be augmented with random peers.
ModifyResponseProbability float32 `yaml:"modify_response_probability"`
// MaxRandomPeers is the amount of peers that will be added at most.
MaxRandomPeers int `yaml:"max_random_peers"`
// Prefix is the prefix to be used for peer IDs.
Prefix string `yaml:"prefix"`
// MinPort is the minimum port (inclusive) for the generated peer.
MinPort int `yaml:"min_port"`
// MaxPort is the maximum port (exclusive) for the generated peer.
MaxPort int `yaml:"max_port"`
}
// newConfig parses the given MiddlewareConfig as a deniability.Config.
func newConfig(mwcfg chihaya.MiddlewareConfig) (*Config, error) {
bytes, err := yaml.Marshal(mwcfg.Config)
if err != nil {
return nil, err
}
var cfg Config
err = yaml.Unmarshal(bytes, &cfg)
if err != nil {
return nil, err
}
return &cfg, nil
}