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fix: RoleSessionName Exceeds Maximum Length Constraint #243 #244

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fix: RoleSessionName Exceeds Maximum Length Constraint #243 #244

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21 changes: 16 additions & 5 deletions cmd/aws-sigv4-proxy/main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -172,12 +172,23 @@ func shouldLogSigning() bool {
}

func roleSessionName() string {
suffix, err := os.Hostname()
return roleSessionNameWithHostname(os.Hostname)
}

if err != nil {
now := time.Now().Unix()
suffix = strconv.FormatInt(now, 10)
func roleSessionNameWithHostname(hostnameFn func() (string, error)) string {
if env := os.Getenv("AWS_ROLE_SESSION_NAME"); env != "" {
return env
}

sessionName := "aws-sigv4-proxy-"
if hostname, err := hostnameFn(); err == nil {
sessionName += hostname
} else {
sessionName += strconv.FormatInt(time.Now().Unix(), 10)
}

return "aws-sigv4-proxy-" + suffix
if len(sessionName) > 64 {
return sessionName[:64]
}
return sessionName
}