WIP ssh

validator/ssh.go

@@ -0,0 +1,41 @@
+package main
+
+import (
+	"bytes"
+	"fmt"
+	"os/exec"
+	"regexp"
+	"strings"
+)
+
+type SSHkey struct {
+	Size        int
+	Fingerprint string
+	Comment     string
+	Algo        string
+}
+
+func SSHkeyAnalyse(key string) (s SSHkey, err error) {
+	cmd := exec.Command("ssh-keygen", "-l", "-f", "-")
+	cmd.Stdin = strings.NewReader(key)
+
+	var out bytes.Buffer
+	cmd.Stdout = &out
+
+	if err = cmd.Run(); err != nil {
+		return
+	}
+
+	var validLine = regexp.MustCompile(`^([0-9]+)`)
+
+	for _, line := range strings.Split(out.String(), "\n") {
+		if validLine.MatchString(line) {
+			s.Size, err = fmt.Sscanf("%d", validLine.SubexpNames()[1])
+			s.Fingerprint = validLine.SubexpNames()[2]
+			s.Comment = validLine.SubexpNames()[3]
+			s.Algo = validLine.SubexpNames()[4]
+		}
+	}
+
+	return
+}