fortify/internal/app/launch.machinectl.go

68 lines
1.8 KiB
Go

package app
import (
"os/exec"
"strings"
"git.ophivana.moe/cat/fortify/internal/state"
"git.ophivana.moe/cat/fortify/internal/verbose"
)
func (a *app) commandBuilderMachineCtl(shimEnv string) (args []string) {
args = make([]string, 0, 9+len(a.seal.env))
// shell --uid=$USER
args = append(args, "shell", "--uid="+a.seal.sys.Username)
// --quiet
if !verbose.Get() {
args = append(args, "--quiet")
}
// environ
envQ := make([]string, len(a.seal.env)+1)
for i, e := range a.seal.env {
envQ[i] = "-E" + e
}
// add shim payload to environment for shim path
envQ[len(a.seal.env)] = "-E" + shimEnv
args = append(args, envQ...)
// -- .host
args = append(args, "--", ".host")
// /bin/sh -c
if sh, err := exec.LookPath("sh"); err != nil {
// hardcode /bin/sh path since it exists more often than not
args = append(args, "/bin/sh", "-c")
} else {
args = append(args, sh, "-c")
}
// build inner command expression ran as target user
innerCommand := strings.Builder{}
// apply custom environment variables to activation environment
innerCommand.WriteString("dbus-update-activation-environment --systemd")
for _, e := range a.seal.env {
innerCommand.WriteString(" " + strings.SplitN(e, "=", 2)[0])
}
innerCommand.WriteString("; ")
// override message bus address if enabled
if a.seal.et.Has(state.EnableDBus) {
innerCommand.WriteString(dbusSessionBusAddress + "=" + "'" + "unix:path=" + a.seal.sys.dbusAddr[0][1] + "' ")
if a.seal.sys.dbusSystem {
innerCommand.WriteString(dbusSystemBusAddress + "=" + "'" + "unix:path=" + a.seal.sys.dbusAddr[1][1] + "' ")
}
}
// both license and version flags need to be set to activate shim path
innerCommand.WriteString("exec " + a.seal.sys.executable + " -V -license")
// append inner command
args = append(args, innerCommand.String())
return
}