93 lines
2.3 KiB
Go
93 lines
2.3 KiB
Go
package app
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import (
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"errors"
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"fmt"
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"os"
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"path"
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"strconv"
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"git.ophivana.moe/cat/fortify/dbus"
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"git.ophivana.moe/cat/fortify/internal/acl"
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"git.ophivana.moe/cat/fortify/internal/state"
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"git.ophivana.moe/cat/fortify/internal/system"
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"git.ophivana.moe/cat/fortify/internal/util"
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)
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const dbusSessionBusAddress = "DBUS_SESSION_BUS_ADDRESS"
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var dbusAddress string
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func (a *App) ShareDBus(c *dbus.Config) {
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a.setEnablement(state.EnableDBus)
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var binPath, address string
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target := path.Join(system.V.Share, strconv.Itoa(os.Getpid()))
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dbusAddress = "unix:path=" + target
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if b, ok := util.Which("xdg-dbus-proxy"); !ok {
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state.Fatal("D-Bus: Did not find 'xdg-dbus-proxy' in PATH")
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} else {
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binPath = b
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}
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if addr, ok := os.LookupEnv(dbusSessionBusAddress); !ok {
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state.Fatal("D-Bus: DBUS_SESSION_BUS_ADDRESS not set")
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} else {
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address = addr
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}
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c.Log = system.V.Verbose
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p := dbus.New(binPath, address, target)
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if system.V.Verbose {
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fmt.Println("D-Bus: sealing proxy", c.Args(address, target))
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}
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if err := p.Seal(c); err != nil {
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state.Fatal("D-Bus: invalid config when sealing proxy,", err)
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}
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ready := make(chan bool, 1)
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done := make(chan struct{})
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if system.V.Verbose {
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fmt.Printf("Starting session bus proxy '%s' for address '%s'\n", dbusAddress, address)
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}
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if err := p.Start(&ready); err != nil {
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state.Fatal("D-Bus: error starting proxy,", err)
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}
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if system.V.Verbose {
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fmt.Println("D-Bus proxy launch:", p)
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}
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go func() {
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if err := p.Wait(); err != nil {
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fmt.Println("warn: D-Bus proxy returned error,", err)
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} else {
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if system.V.Verbose {
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fmt.Println("D-Bus proxy uneventful wait")
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}
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}
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if err := os.Remove(target); err != nil && !errors.Is(err, os.ErrNotExist) {
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fmt.Println("Error removing dangling D-Bus socket:", err)
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}
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done <- struct{}{}
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}()
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// register early to enable Fatal cleanup
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state.RegisterDBus(p, &done)
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if !<-ready {
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state.Fatal("D-Bus: proxy did not start correctly")
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}
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a.AppendEnv(dbusSessionBusAddress, dbusAddress)
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if err := acl.UpdatePerm(target, a.UID(), acl.Read, acl.Write); err != nil {
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state.Fatal(fmt.Sprintf("Error preparing D-Bus proxy '%s':", dbusAddress), err)
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} else {
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state.RegisterRevertPath(target)
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}
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if system.V.Verbose {
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fmt.Printf("Session bus proxy '%s' for address '%s' configured\n", dbusAddress, address)
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}
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}
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