Fixed minor bugs in renew policy toggle

src/mod/acme/acmewizard/acmewizard.go

@@ -0,0 +1,159 @@
+package acmewizard
+
+import (
+	"crypto/tls"
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"net"
+	"net/http"
+	"strconv"
+	"strings"
+	"time"
+
+	"imuslab.com/zoraxy/mod/utils"
+)
+
+/*
+	ACME Wizard
+
+	This wizard help validate the acme settings and configurations
+*/
+
+func HandleGuidedStepCheck(w http.ResponseWriter, r *http.Request) {
+	stepNoStr, err := utils.GetPara(r, "step")
+	if err != nil {
+		utils.SendErrorResponse(w, "invalid step number given")
+		return
+	}
+
+	stepNo, err := strconv.Atoi(stepNoStr)
+	if err != nil {
+		utils.SendErrorResponse(w, "invalid step number given")
+		return
+	}
+
+	if stepNo == 1 {
+		isListening, err := isLocalhostListening()
+		if err != nil {
+			utils.SendErrorResponse(w, err.Error())
+			return
+		}
+
+		js, _ := json.Marshal(isListening)
+		utils.SendJSONResponse(w, string(js))
+	} else if stepNo == 2 {
+		publicIp, err := getPublicIPAddress()
+		if err != nil {
+			utils.SendErrorResponse(w, err.Error())
+			return
+		}
+
+		publicIp = strings.TrimSpace(publicIp)
+
+		httpServerReachable := isHTTPServerAvailable(publicIp)
+
+		js, _ := json.Marshal(httpServerReachable)
+		utils.SendJSONResponse(w, string(js))
+	} else if stepNo == 3 {
+		domain, err := utils.GetPara(r, "domain")
+		if err != nil {
+			utils.SendErrorResponse(w, "domain cannot be empty")
+			return
+		}
+
+		domain = strings.TrimSpace(domain)
+
+		//Check if the domain is reachable
+		reachable := isDomainReachable(domain)
+		if !reachable {
+			utils.SendErrorResponse(w, "domain is not reachable")
+			return
+		}
+
+		//Check http is setup correctly
+		httpServerReachable := isHTTPServerAvailable(domain)
+		js, _ := json.Marshal(httpServerReachable)
+		utils.SendJSONResponse(w, string(js))
+	} else {
+		utils.SendErrorResponse(w, "invalid step number")
+	}
+}
+
+// Step 1
+func isLocalhostListening() (isListening bool, err error) {
+	timeout := 2 * time.Second
+	isListening = false
+	// Check if localhost is listening on port 80 (HTTP)
+	conn, err := net.DialTimeout("tcp", "localhost:80", timeout)
+	if err == nil {
+		isListening = true
+		conn.Close()
+	}
+
+	// Check if localhost is listening on port 443 (HTTPS)
+	conn, err = net.DialTimeout("tcp", "localhost:443", timeout)
+	if err == nil {
+		isListening = true
+		conn.Close()
+	}
+
+	return isListening, err
+}
+
+// Step 2
+func getPublicIPAddress() (string, error) {
+	resp, err := http.Get("http://checkip.amazonaws.com/")
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+
+	ip, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return "", err
+	}
+
+	return string(ip), nil
+}
+
+func isHTTPServerAvailable(ipAddress string) bool {
+	client := http.Client{
+		Timeout: 5 * time.Second, // Timeout for the HTTP request
+	}
+
+	urls := []string{
+		"http://" + ipAddress + ":80",
+		"https://" + ipAddress + ":443",
+	}
+
+	for _, url := range urls {
+		req, err := http.NewRequest("GET", url, nil)
+		if err != nil {
+			fmt.Println(err, url)
+			continue // Ignore invalid URLs
+		}
+
+		// Disable TLS verification to handle invalid certificates
+		client.Transport = &http.Transport{
+			TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
+		}
+
+		resp, err := client.Do(req)
+		if err == nil {
+			resp.Body.Close()
+			return true // HTTP server is available
+		}
+	}
+
+	return false // HTTP server is not available
+}
+
+// Step 3
+func isDomainReachable(domain string) bool {
+	_, err := net.LookupHost(domain)
+	if err != nil {
+		return false // Domain is not reachable
+	}
+	return true // Domain is reachable
+}