util: PulseAudio cookie discovery

This appears to be how a regular PulseAudio client discovers the PulseAudio cookie.

Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
This commit is contained in:
Ophestra Umiker 2024-07-15 16:25:44 +09:00
parent 7d96b0bf35
commit 0bd452ad9b
Signed by: cat
SSH Key Fingerprint: SHA256:gQ67O0enBZ7UdZypgtspB2FDM1g3GVw8nX0XSdcFw8Q
1 changed files with 40 additions and 2 deletions

42
util.go
View File

@ -7,6 +7,7 @@ import (
"io/fs" "io/fs"
"os" "os"
"os/exec" "os/exec"
"path"
) )
const ( const (
@ -29,9 +30,46 @@ func sdBooted() bool {
return true return true
} }
// Try various ways to discover the current user's PulseAudio authentication cookie.
func discoverPulseCookie() string {
if p, ok := os.LookupEnv(pulseCookie); ok {
return p
}
if p, ok := os.LookupEnv(home); ok {
p = path.Join(p, ".pulse-cookie")
if s, err := os.Stat(p); err != nil {
if !errors.Is(err, fs.ErrNotExist) {
fatal("Error accessing PulseAudio cookie:", err)
// unreachable
return p
}
} else if !s.IsDir() {
return p
}
}
if p, ok := os.LookupEnv(xdgConfigHome); ok {
p = path.Join(p, "pulse", "cookie")
if s, err := os.Stat(p); err != nil {
if !errors.Is(err, fs.ErrNotExist) {
fatal("Error accessing PulseAudio cookie:", err)
// unreachable
return p
}
} else if !s.IsDir() {
return p
}
}
fatal(fmt.Sprintf("Cannot locate PulseAudio cookie (tried $%s, $%s/pulse/cookie, $%s/.pulse-cookie)",
pulseCookie, xdgConfigHome, home))
return ""
}
func which(file string) (string, bool) { func which(file string) (string, bool) {
path, err := exec.LookPath(file) p, err := exec.LookPath(file)
return path, err == nil return p, err == nil
} }
func copyFile(dst, src string) error { func copyFile(dst, src string) error {