Add bootstrap tooltips and refactor some code formatings

cmd/server/main.go

@@ -16,7 +16,7 @@ func main() {
 	// Register our routes (IndexHandler, /api/summary, /api/jails/:jail/unban/:ip)
 	web.RegisterRoutes(r)
 
-	log.Println("Starting Fail2ban UI on :8080. Run with 'sudo' if fail2ban-client requires it.")
+	log.Println("Starting Fail2ban-UI server on :8080.")
 	if err := r.Run(":8080"); err != nil {
 		log.Fatalf("Server crashed: %v", err)
 	}

internal/fail2ban/client.go

@@ -2,18 +2,18 @@ package fail2ban
 
 import (
 	"fmt"
-    "io/ioutil"
-    "os/exec"
-    "path/filepath"
+	"os"
+	"os/exec"
+	"path/filepath"
 	"strings"
 	"time"
 )
 
 type JailInfo struct {
-	JailName       string   `json:"jailName"`
-	TotalBanned    int      `json:"totalBanned"`
-	NewInLastHour  int      `json:"newInLastHour"`
-	BannedIPs      []string `json:"bannedIPs"`
+	JailName      string   `json:"jailName"`
+	TotalBanned   int      `json:"totalBanned"`
+	NewInLastHour int      `json:"newInLastHour"`
+	BannedIPs     []string `json:"bannedIPs"`
 }
 
 // GetJails returns all configured jails using "fail2ban-client status".
@@ -128,29 +128,29 @@ func BuildJailInfos(logPath string) ([]JailInfo, error) {
 // Example: we assume each jail config is at /etc/fail2ban/filter.d/<jail>.conf
 // Adapt this to your environment.
 func GetJailConfig(jail string) (string, error) {
-    configPath := filepath.Join("/etc/fail2ban/filter.d", jail+".conf")
-    content, err := ioutil.ReadFile(configPath)
-    if err != nil {
-        return "", fmt.Errorf("failed to read config for jail %s: %v", jail, err)
-    }
-    return string(content), nil
+	configPath := filepath.Join("/etc/fail2ban/filter.d", jail+".conf")
+	content, err := os.ReadFile(configPath)
+	if err != nil {
+		return "", fmt.Errorf("failed to read config for jail %s: %v", jail, err)
+	}
+	return string(content), nil
 }
 
 // SetJailConfig overwrites the config file for a given jail with new content.
 func SetJailConfig(jail, newContent string) error {
-    configPath := filepath.Join("/etc/fail2ban/filter.d", jail+".conf")
-    if err := ioutil.WriteFile(configPath, []byte(newContent), 0644); err != nil {
-        return fmt.Errorf("failed to write config for jail %s: %v", jail, err)
-    }
-    return nil
+	configPath := filepath.Join("/etc/fail2ban/filter.d", jail+".conf")
+	if err := os.WriteFile(configPath, []byte(newContent), 0644); err != nil {
+		return fmt.Errorf("failed to write config for jail %s: %v", jail, err)
+	}
+	return nil
 }
 
 // ReloadFail2ban runs "fail2ban-client reload"
 func ReloadFail2ban() error {
-    cmd := exec.Command("fail2ban-client", "reload")
-    out, err := cmd.CombinedOutput()
-    if err != nil {
-        return fmt.Errorf("fail2ban reload error: %v\nOutput: %s", err, out)
-    }
-    return nil
-}
+	cmd := exec.Command("fail2ban-client", "reload")
+	out, err := cmd.CombinedOutput()
+	if err != nil {
+		return fmt.Errorf("fail2ban reload error: %v\nOutput: %s", err, out)
+	}
+	return nil
+}

internal/fail2ban/logparse.go

@@ -5,7 +5,6 @@ import (
 	"fmt"
 	"os"
 	"regexp"
-	//"strings"
 	"time"
 )
 
@@ -69,31 +68,3 @@ func ParseBanLog(logPath string) (map[string][]BanEvent, error) {
 	}
 	return eventsByJail, nil
 }
-
-// GetLastFiveBans crawls the parse results to find the last 5 ban events overall.
-func GetLastFiveBans(eventsByJail map[string][]BanEvent) []BanEvent {
-	var allEvents []BanEvent
-	for _, events := range eventsByJail {
-		allEvents = append(allEvents, events...)
-	}
-
-	// Sort by time descending
-	// (We want the latest 5 ban events)
-	sortByTimeDesc(allEvents)
-
-	if len(allEvents) > 5 {
-		return allEvents[:5]
-	}
-	return allEvents
-}
-
-// A simple in-file sorting utility
-func sortByTimeDesc(events []BanEvent) {
-	for i := 0; i < len(events); i++ {
-		for j := i + 1; j < len(events); j++ {
-			if events[j].Time.After(events[i].Time) {
-				events[i], events[j] = events[j], events[i]
-			}
-		}
-	}
-}

pkg/web/templates/index.html

@@ -256,9 +256,18 @@ window.addEventListener('DOMContentLoaded', function() {
   checkReloadNeeded();
   fetchSummary().then(function() {
     showLoading(false);
+    initializeTooltips(); // Initialize tooltips after fetching and rendering
   });
 });
 
+// Function to initialize Bootstrap tooltips
+function initializeTooltips() {
+  const tooltipTriggerList = [].slice.call(document.querySelectorAll('[data-bs-toggle="tooltip"]'));
+  tooltipTriggerList.forEach(function (tooltipTriggerEl) {
+    new bootstrap.Tooltip(tooltipTriggerEl);
+  });
+}
+
 // Toggle the loading overlay (with !important)
 function showLoading(show) {
   var overlay = document.getElementById('loading-overlay');
@@ -342,7 +351,7 @@ function renderDashboard(data) {
     html += '<p>No jails found.</p>';
   } else {
     html += ''
-      + '<h2>Overview</h2>'
+      + '<h2><span data-bs-toggle="tooltip" data-bs-placement="top" title="The Overview displays the currently enabled jails that you have added to your jail.local configuration.">Overview</span></h2>'
       + '<table class="table table-striped" id="jailsTable">'
       + '  <thead>'
       + '    <tr>'