Create fail2ban-logstats.php

includes/fail2ban-logstats.php

@@ -0,0 +1,79 @@
+<?php
+header('Content-Type: application/json');
+
+// Base directory for JSON files
+$archiveDirectory = dirname(__DIR__) . '/archive/';
+
+// Determine the latest JSON file in the archive directory
+$files = array_filter(scandir($archiveDirectory), function($file) {
+    return preg_match('/^fail2ban-events-\d{8}\.json$/', $file);
+});
+
+if (!$files) {
+    echo json_encode([
+        'ban_count' => 0,
+        'ban_unique_ips' => 0,
+        'unban_count' => 0,
+        'unban_unique_ips' => 0,
+        'total_events' => 0,
+        'total_unique_ips' => 0,
+        'error' => 'No log files found.'
+    ]);
+    exit;
+}
+
+// Sort descending by filename (newest first)
+rsort($files);
+
+$logFilename = $files[0];
+$logFilePath = $archiveDirectory . '/' . $logFilename;
+
+if (!is_readable($logFilePath)) {
+    http_response_code(404);
+    echo json_encode(['error' => 'File not found or not readable.']);
+    exit;
+}
+
+$jsonContent = file_get_contents($logFilePath);
+if ($jsonContent === false) {
+    http_response_code(500);
+    echo json_encode(['error' => 'Error reading the file.']);
+    exit;
+}
+
+$logEntries = json_decode($jsonContent, true);
+if (!is_array($logEntries)) {
+    http_response_code(500);
+    echo json_encode(['error' => 'Invalid JSON format.']);
+    exit;
+}
+
+// Initialize counters and sets
+$banTotal = 0;
+$unbanTotal = 0;
+$banIPsSet = [];
+$unbanIPsSet = [];
+
+foreach ($logEntries as $entry) {
+    if (!isset($entry['action'], $entry['ip'])) continue;
+
+    if ($entry['action'] === 'Ban') {
+        $banTotal++;
+        $banIPsSet[$entry['ip']] = true;
+    } elseif ($entry['action'] === 'Unban') {
+        $unbanTotal++;
+        $unbanIPsSet[$entry['ip']] = true;
+    }
+}
+
+$totalEvents = $banTotal + $unbanTotal;
+$totalUniqueIPs = count(array_unique(array_merge(array_keys($banIPsSet), array_keys($unbanIPsSet))));
+
+echo json_encode([
+    'ban_count' => $banTotal,
+    'ban_unique_ips' => count($banIPsSet),
+    'unban_count' => $unbanTotal,
+    'unban_unique_ips' => count($unbanIPsSet),
+    'total_events' => $totalEvents,
+    'total_unique_ips' => $totalUniqueIPs,
+]);