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// Package dbus wraps xdg-dbus-proxy and implements configuration and sandboxing of the underlying helper process.
package dbus
import (
"fmt"
"os"
"sync"
)
const (
SessionBusAddress = "DBUS_SESSION_BUS_ADDRESS"
SystemBusAddress = "DBUS_SYSTEM_BUS_ADDRESS"
)
var (
addresses [2]string
addressOnce sync.Once
)
func Address() (session, system string) {
addressOnce.Do(func() {
// resolve upstream session bus address
if addr, ok := os.LookupEnv(SessionBusAddress); !ok {
// fall back to default format
addresses[0] = fmt.Sprintf("unix:path=/run/user/%d/bus", os.Getuid())
} else {
addresses[0] = addr
}
// resolve upstream system bus address
if addr, ok := os.LookupEnv(SystemBusAddress); !ok {
// fall back to default hardcoded value
addresses[1] = "unix:path=/run/dbus/system_bus_socket"
} else {
addresses[1] = addr
}
})
return addresses[0], addresses[1]
}
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