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package dbus
import "fmt"
import "strings"
// Matches all messages with equal type, interface, member, or path.
// Any missing/invalid fields are not matched against.
type MatchRule struct {
Type MessageType
Sender string
Path ObjectPath
Interface string
Member string
Arg0 string
senderNameOwner string
}
// A string representation af the MatchRule (D-Bus variant map).
func (p *MatchRule) String() string {
params := make([]string, 0, 6)
if p.Type != TypeInvalid {
params = append(params, fmt.Sprintf("type='%s'", p.Type))
}
if p.Sender != "" {
params = append(params, fmt.Sprintf("sender='%s'", p.Sender))
}
if p.Path != "" {
params = append(params, fmt.Sprintf("path='%s'", p.Path))
}
if p.Interface != "" {
params = append(params, fmt.Sprintf("interface='%s'", p.Interface))
}
if p.Member != "" {
params = append(params, fmt.Sprintf("member='%s'", p.Member))
}
if p.Arg0 != "" {
params = append(params, fmt.Sprintf("arg0='%s'", p.Arg0))
}
return strings.Join(params, ",")
}
func (p *MatchRule) Match(msg *Message) bool {
if p.Type != TypeInvalid && p.Type != msg.Type {
return false
}
if p.Sender != "" {
if !(p.Sender == msg.Sender || p.senderNameOwner == msg.Sender) {
return false
}
}
if p.Path != "" && p.Path != msg.Path {
return false
}
if p.Interface != "" && p.Interface != msg.Interface {
return false
}
if p.Member != "" && p.Member != msg.Member {
return false
}
if p.Arg0 != "" {
var arg0 string
if err := msg.Args(&arg0); err != nil || arg0 != p.Arg0 {
return false
}
}
return true
}
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