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docker/routlin-dash/app/pages/radius/action.py

@@ -1,7 +1,7 @@
 import copy
 import os
 from pathlib import Path
-from flask import Blueprint, request, redirect, flash, send_file, abort
+from flask import Blueprint, request, redirect, flash, send_file, abort, jsonify
 from auth import require_level
 from config_utils import CONFIGS_DIR, load_config, record_group, diff_fields
 import validation as validate
@@ -90,3 +90,28 @@ def logging_download():
     if not os.path.isfile(RADIUS_LOG_FILE):
         abort(404)
     return send_file(RADIUS_LOG_FILE, as_attachment=True, download_name='radius.log', mimetype='text/plain')
+
+
+@bp.route('/api/radius/log-tail', methods=['GET'])
+@require_level('administrator')
+def api_log_tail():
+    try:
+        cfg        = load_config()
+        log_max_kb = cfg.get('free_radius', {}).get('general', {}).get('log_max_kb', 1024)
+        size_kb    = os.path.getsize(RADIUS_LOG_FILE) / 1024
+        with open(RADIUS_LOG_FILE) as f:
+            lines = f.readlines()
+        if not lines:
+            return jsonify({'log': '(log is empty)', 'summary': ''})
+        total  = len(lines)
+        tail   = lines[-50:]
+        shown  = len(tail)
+        hidden = total - shown
+        pct    = min(100, round(size_kb / log_max_kb * 100)) if log_max_kb else 0
+        left   = f'Showing {shown} of {total} lines ({hidden} not shown)' if hidden > 0 else f'Showing {shown} of {total} lines'
+        right  = f'Log file size: {size_kb:.1f} KB ({pct}% of max)'
+        return jsonify({'log': ''.join(tail).strip(), 'left': left, 'right': right})
+    except FileNotFoundError:
+        return jsonify({'log': '(log file not found)', 'left': '', 'right': ''})
+    except Exception:
+        return jsonify({'log': '(error reading log)', 'left': '', 'right': ''})