package config import ( "crypto/md5" "fmt" "io" "strings" ) // Forwarder represents a client side listener to forward traffic to the edge type Forwarder struct { URL string `json:"url"` Listener string `json:"listener"` TokenClientID string `json:"service_token_id" yaml:"serviceTokenID"` TokenSecret string `json:"secret_token_id" yaml:"serviceTokenSecret"` Destination string `json:"destination"` } // Tunnel represents a tunnel that should be started type Tunnel struct { URL string `json:"url"` Origin string `json:"origin"` ProtocolType string `json:"type"` } // DNSResolver represents a client side DNS resolver type DNSResolver struct { Enabled bool `json:"enabled"` Address string `json:"address,omitempty"` Port uint16 `json:"port,omitempty"` Upstreams []string `json:"upstreams,omitempty"` Bootstraps []string `json:"bootstraps,omitempty"` } // Root is the base options to configure the service type Root struct { LogDirectory string `json:"log_directory" yaml:"logDirectory,omitempty"` LogLevel string `json:"log_level" yaml:"logLevel,omitempty"` Forwarders []Forwarder `json:"forwarders,omitempty" yaml:"forwarders,omitempty"` Tunnels []Tunnel `json:"tunnels,omitempty" yaml:"tunnels,omitempty"` Resolver DNSResolver `json:"resolver,omitempty" yaml:"resolver,omitempty"` } // Hash returns the computed values to see if the forwarder values change func (f *Forwarder) Hash() string { h := md5.New() io.WriteString(h, f.URL) io.WriteString(h, f.Listener) io.WriteString(h, f.TokenClientID) io.WriteString(h, f.TokenSecret) io.WriteString(h, f.Destination) return fmt.Sprintf("%x", h.Sum(nil)) } // Hash returns the computed values to see if the forwarder values change func (r *DNSResolver) Hash() string { h := md5.New() io.WriteString(h, r.Address) io.WriteString(h, strings.Join(r.Bootstraps, ",")) io.WriteString(h, strings.Join(r.Upstreams, ",")) io.WriteString(h, fmt.Sprintf("%d", r.Port)) io.WriteString(h, fmt.Sprintf("%v", r.Enabled)) return fmt.Sprintf("%x", h.Sum(nil)) } // EnabledOrDefault returns the enabled property func (r *DNSResolver) EnabledOrDefault() bool { return r.Enabled } // AddressOrDefault returns the address or returns the default if empty func (r *DNSResolver) AddressOrDefault() string { if r.Address != "" { return r.Address } return "localhost" } // PortOrDefault return the port or returns the default if 0 func (r *DNSResolver) PortOrDefault() uint16 { if r.Port > 0 { return r.Port } return 53 } // UpstreamsOrDefault returns the upstreams or returns the default if empty func (r *DNSResolver) UpstreamsOrDefault() []string { if len(r.Upstreams) > 0 { return r.Upstreams } return []string{"https://1.1.1.1/dns-query", "https://1.0.0.1/dns-query"} } // BootstrapsOrDefault returns the bootstraps or returns the default if empty func (r *DNSResolver) BootstrapsOrDefault() []string { if len(r.Bootstraps) > 0 { return r.Bootstraps } return []string{"https://162.159.36.1/dns-query", "https://162.159.46.1/dns-query", "https://[2606:4700:4700::1111]/dns-query", "https://[2606:4700:4700::1001]/dns-query"} }