Display firewall status

security/client.go

@@ -1,58 +1,14 @@
 package security
 
-import (
-	"io/ioutil"
-	"os/exec"
-	"regexp"
-	//"runtime"
-	//"strings"
-)
-
-const fwGlobalState = "/usr/libexec/ApplicationFirewall/socketfilterfw --getglobalstate"
-const fwStealthMode = "/usr/libexec/ApplicationFirewall/socketfilterfw --getstealthmode"
-
-// https://github.com/yelinaung/wifi-name/blob/master/wifi-name.go
-const osxCmd = "/System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport"
-const osxArgs = "-I"
+import ()
 
 func Fetch() map[string]string {
 	data := make(map[string]string)
 
-	data["Wifi"] = WifiName()
+	data["Wifi Network"] = WifiName()
+	data["Wifi Encryption"] = WifiEncryption()
+	data["Firewall Enabled"] = FirewallState()
+	data["Firewall Stealth"] = FirewallStealthState()
 
 	return data
 }
-
-func WifiName() string {
-	cmd := exec.Command(osxCmd, osxArgs)
-
-	stdout, err := cmd.StdoutPipe()
-	panicIf(err)
-
-	// start the command after having set up the pipe
-	if err := cmd.Start(); err != nil {
-		panic(err)
-	}
-
-	var str string
-
-	if b, err := ioutil.ReadAll(stdout); err == nil {
-		str += (string(b) + "\n")
-	}
-
-	r := regexp.MustCompile(`s*SSID: (.+)s*`)
-
-	name := r.FindAllStringSubmatch(str, -1)
-
-	if len(name) <= 1 {
-		return ""
-	} else {
-		return name[1][1]
-	}
-}
-
-func panicIf(err error) {
-	if err != nil {
-		panic(err)
-	}
-}

security/firewall.go

@@ -0,0 +1,59 @@
+package security
+
+import (
+	"io/ioutil"
+	"os/exec"
+	"strings"
+)
+
+const osxFirewallCmd = "/usr/libexec/ApplicationFirewall/socketfilterfw"
+
+func FirewallState() string {
+	cmd := exec.Command(osxFirewallCmd, "--getglobalstate")
+
+	stdout, err := cmd.StdoutPipe()
+	if err != nil {
+		return firewallIcon("err")
+	}
+
+	if err := cmd.Start(); err != nil {
+		return firewallIcon("err")
+	}
+
+	var str string
+	if b, err := ioutil.ReadAll(stdout); err == nil {
+		str += string(b)
+	}
+
+	return firewallIcon(str)
+}
+
+func FirewallStealthState() string {
+	cmd := exec.Command(osxFirewallCmd, "--getstealthmode")
+
+	stdout, err := cmd.StdoutPipe()
+	if err != nil {
+		return firewallIcon("err")
+	}
+
+	if err := cmd.Start(); err != nil {
+		return firewallIcon("err")
+	}
+
+	var str string
+	if b, err := ioutil.ReadAll(stdout); err == nil {
+		str += string(b)
+	}
+
+	return firewallIcon(str)
+}
+
+func firewallIcon(str string) string {
+	icon := "[red]off[white]"
+
+	if strings.Contains(str, "enabled") {
+		icon = "[green]on[white]"
+	}
+
+	return icon
+}

security/widget.go

@@ -2,6 +2,7 @@ package security
 
 import (
 	"fmt"
+	"sort"
 	"time"
 
 	"github.com/rivo/tview"
@@ -16,9 +17,9 @@ type Widget struct {
 func NewWidget() *Widget {
 	widget := Widget{
 		BaseWidget: wtf.BaseWidget{
-			Name:            "Weather",
+			Name:            "Security",
 			RefreshedAt:     time.Now(),
-			RefreshInterval: 5,
+			RefreshInterval: 300,
 		},
 	}
 
@@ -33,7 +34,7 @@ func NewWidget() *Widget {
 func (widget *Widget) Refresh() {
 	data := Fetch()
 
-	widget.View.SetTitle(" 🐼 Security")
+	widget.View.SetTitle(" 🦂 Security ")
 	widget.RefreshedAt = time.Now()
 
 	widget.View.Clear()
@@ -56,8 +57,16 @@ func (widget *Widget) addView() {
 func (widget *Widget) contentFrom(data map[string]string) string {
 	str := "\n"
 
-	for key, val := range data {
-		str = str + fmt.Sprintf("%8s: %8s\n", key, val)
+	// Sort the map keys in alphabetical order
+	var keys []string
+	for key, _ := range data {
+		keys = append(keys, key)
+	}
+	sort.Strings(keys)
+
+	for _, key := range keys {
+		val := data[key]
+		str = str + fmt.Sprintf(" %16s: %s\n", key, val)
 	}
 
 	return str

security/wifi.go

@@ -0,0 +1,71 @@
+package security
+
+import (
+	"io/ioutil"
+	"os/exec"
+	"regexp"
+)
+
+// https://github.com/yelinaung/wifi-name/blob/master/wifi-name.go
+const osxWifiCmd = "/System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport"
+
+/* -------------------- Exported Functions -------------------- */
+
+func WifiEncryption() string {
+	cmd := exec.Command(osxWifiCmd, "-I")
+
+	stdout, err := cmd.StdoutPipe()
+	if err != nil {
+		return ""
+	}
+
+	if err := cmd.Start(); err != nil {
+		return ""
+	}
+
+	var str string
+	if b, err := ioutil.ReadAll(stdout); err == nil {
+		str += (string(b) + "\n")
+	}
+
+	name := findMatch(`s*auth: (.+)s*`, str)
+	return matchStr(name)
+}
+
+func WifiName() string {
+	cmd := exec.Command(osxWifiCmd, "-I")
+
+	stdout, err := cmd.StdoutPipe()
+	if err != nil {
+		return ""
+	}
+
+	if err := cmd.Start(); err != nil {
+		return ""
+	}
+
+	var str string
+	if b, err := ioutil.ReadAll(stdout); err == nil {
+		str += (string(b) + "\n")
+	}
+
+	name := findMatch(`s*SSID: (.+)s*`, str)
+	return matchStr(name)
+}
+
+/* -------------------- Unexported Functions -------------------- */
+
+func findMatch(pattern string, data string) [][]string {
+	r := regexp.MustCompile(pattern)
+
+	name := r.FindAllStringSubmatch(data, -1)
+	return name
+}
+
+func matchStr(data [][]string) string {
+	if len(data) <= 1 {
+		return ""
+	} else {
+		return data[1][1]
+	}
+}

weather/widget.go

@@ -68,7 +68,7 @@ func (widget *Widget) contentFrom(data *owm.CurrentWeatherData) string {
 
 	str = str + strings.Join(descs, ",") + "\n\n"
 
-	str = str + fmt.Sprintf("%10s: %4.1f° C\n\n", "Current", data.Main.Temp)
+	str = str + fmt.Sprintf("%10s: %4.1f° C\n", "Current", data.Main.Temp)
 	str = str + fmt.Sprintf("%10s: %4.1f° C\n", "High", data.Main.TempMax)
 	str = str + fmt.Sprintf("%10s: %4.1f° C\n", "Low", data.Main.TempMin)
 	str = str + "\n\n\n\n"