File size: 12,470 Bytes
aaaaa79
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
"""
VPN Server Management Routes

Provides API endpoints for managing VPN servers and monitoring connections
"""

import logging
from flask import Blueprint, request, jsonify, current_app
from functools import wraps
from models.enhanced_user import User
from services.vpn_server_manager import VPNServerManager
import jwt

logger = logging.getLogger(__name__)

vpn_server_bp = Blueprint('vpn_server', __name__)

def token_required(f):
    """Decorator to require valid JWT token"""
    @wraps(f)
    def decorated(*args, **kwargs):
        token = request.headers.get('Authorization')
        
        if not token:
            return jsonify({'error': 'Token is missing'}), 401
        
        try:
            if token.startswith('Bearer '):
                token = token[7:]
            
            data = jwt.decode(token, current_app.config['SECRET_KEY'], algorithms=['HS256'])
            current_user = User.query.get(data['user_id'])
            
            if not current_user:
                return jsonify({'error': 'Invalid token'}), 401
                
        except jwt.ExpiredSignatureError:
            return jsonify({'error': 'Token has expired'}), 401
        except jwt.InvalidTokenError:
            return jsonify({'error': 'Invalid token'}), 401
        
        return f(current_user, *args, **kwargs)
    
    return decorated

@vpn_server_bp.route('/server/status', methods=['GET'])
@token_required
def get_server_status(current_user):
    """Get VPN server status for all protocols"""
    try:
        vpn_manager = VPNServerManager()
        status = vpn_manager.get_server_status()
        
        return jsonify({
            'success': True,
            'status': status,
            'server_info': vpn_manager.get_server_info()
        })
        
    except Exception as e:
        logger.error(f"Server status error: {e}")
        return jsonify({'error': 'Failed to get server status'}), 500

@vpn_server_bp.route('/server/start/<protocol>', methods=['POST'])
@token_required
def start_server(current_user, protocol):
    """Start VPN server for specified protocol"""
    try:
        # Check if user has admin privileges (for now, allow all authenticated users)
        vpn_manager = VPNServerManager()
        
        if protocol.lower() == 'openvpn':
            success = vpn_manager.start_openvpn_server()
        elif protocol.lower() in ['ikev2', 'ipsec']:
            success = vpn_manager.start_ipsec_server()
        elif protocol.lower() == 'wireguard':
            success = vpn_manager.start_wireguard_server()
        else:
            return jsonify({'error': 'Unsupported protocol'}), 400
        
        if success:
            return jsonify({
                'success': True,
                'message': f'{protocol.upper()} server started successfully'
            })
        else:
            return jsonify({
                'success': False,
                'error': f'Failed to start {protocol.upper()} server'
            }), 500
            
    except Exception as e:
        logger.error(f"Server start error: {e}")
        return jsonify({'error': 'Failed to start server'}), 500

@vpn_server_bp.route('/server/stop/<protocol>', methods=['POST'])
@token_required
def stop_server(current_user, protocol):
    """Stop VPN server for specified protocol"""
    try:
        vpn_manager = VPNServerManager()
        
        if protocol.lower() == 'openvpn':
            success = vpn_manager.stop_openvpn_server()
        elif protocol.lower() in ['ikev2', 'ipsec']:
            success = vpn_manager.stop_ipsec_server()
        elif protocol.lower() == 'wireguard':
            success = vpn_manager.stop_wireguard_server()
        else:
            return jsonify({'error': 'Unsupported protocol'}), 400
        
        if success:
            return jsonify({
                'success': True,
                'message': f'{protocol.upper()} server stopped successfully'
            })
        else:
            return jsonify({
                'success': False,
                'error': f'Failed to stop {protocol.upper()} server'
            }), 500
            
    except Exception as e:
        logger.error(f"Server stop error: {e}")
        return jsonify({'error': 'Failed to stop server'}), 500

@vpn_server_bp.route('/server/restart/<protocol>', methods=['POST'])
@token_required
def restart_server(current_user, protocol):
    """Restart VPN server for specified protocol"""
    try:
        vpn_manager = VPNServerManager()
        
        # Stop server first
        if protocol.lower() == 'openvpn':
            vpn_manager.stop_openvpn_server()
            success = vpn_manager.start_openvpn_server()
        elif protocol.lower() in ['ikev2', 'ipsec']:
            vpn_manager.stop_ipsec_server()
            success = vpn_manager.start_ipsec_server()
        elif protocol.lower() == 'wireguard':
            vpn_manager.stop_wireguard_server()
            success = vpn_manager.start_wireguard_server()
        else:
            return jsonify({'error': 'Unsupported protocol'}), 400
        
        if success:
            return jsonify({
                'success': True,
                'message': f'{protocol.upper()} server restarted successfully'
            })
        else:
            return jsonify({
                'success': False,
                'error': f'Failed to restart {protocol.upper()} server'
            }), 500
            
    except Exception as e:
        logger.error(f"Server restart error: {e}")
        return jsonify({'error': 'Failed to restart server'}), 500

@vpn_server_bp.route('/server/clients/<protocol>', methods=['GET'])
@token_required
def get_connected_clients(current_user, protocol):
    """Get connected clients for specified protocol"""
    try:
        vpn_manager = VPNServerManager()
        status = vpn_manager.get_server_status()
        
        protocol_status = status.get(protocol.lower())
        if not protocol_status:
            return jsonify({'error': 'Unsupported protocol'}), 400
        
        return jsonify({
            'success': True,
            'protocol': protocol.upper(),
            'clients': protocol_status.get('clients', []),
            'client_count': protocol_status.get('client_count', 0),
            'running': protocol_status.get('running', False)
        })
        
    except Exception as e:
        logger.error(f"Connected clients error: {e}")
        return jsonify({'error': 'Failed to get connected clients'}), 500

@vpn_server_bp.route('/server/info', methods=['GET'])
@token_required
def get_server_info(current_user):
    """Get server information for client configuration"""
    try:
        vpn_manager = VPNServerManager()
        server_info = vpn_manager.get_server_info()
        
        return jsonify({
            'success': True,
            'server_info': server_info
        })
        
    except Exception as e:
        logger.error(f"Server info error: {e}")
        return jsonify({'error': 'Failed to get server info'}), 500

@vpn_server_bp.route('/server/protocols', methods=['GET'])
def get_supported_protocols():
    """Get list of supported VPN protocols"""
    try:
        protocols = [
            {
                'name': 'OpenVPN',
                'key': 'openvpn',
                'description': 'Secure, reliable, and widely supported VPN protocol',
                'port': 1194,
                'transport': 'UDP',
                'features': [
                    'Cross-platform compatibility',
                    'Strong encryption (AES-256)',
                    'Certificate-based authentication',
                    'Firewall-friendly'
                ]
            },
            {
                'name': 'IKEv2/IPSec',
                'key': 'ikev2',
                'description': 'Fast and secure protocol, ideal for mobile devices',
                'port': 500,
                'transport': 'UDP',
                'features': [
                    'Excellent mobile support',
                    'Fast reconnection',
                    'Built into most devices',
                    'Strong security'
                ]
            },
            {
                'name': 'WireGuard',
                'key': 'wireguard',
                'description': 'Modern, fast, and lightweight VPN protocol',
                'port': 51820,
                'transport': 'UDP',
                'features': [
                    'Exceptional performance',
                    'Minimal codebase',
                    'Modern cryptography',
                    'Low battery usage'
                ]
            }
        ]
        
        return jsonify({
            'success': True,
            'protocols': protocols
        })
        
    except Exception as e:
        logger.error(f"Protocols info error: {e}")
        return jsonify({'error': 'Failed to get protocols info'}), 500

@vpn_server_bp.route('/server/logs/<protocol>', methods=['GET'])
@token_required
def get_server_logs(current_user, protocol):
    """Get server logs for specified protocol"""
    try:
        lines = request.args.get('lines', 50, type=int)
        lines = min(lines, 1000)  # Limit to 1000 lines max
        
        log_files = {
            'openvpn': '/var/log/openvpn/openvpn.log',
            'ikev2': '/var/log/syslog',  # strongSwan logs to syslog
            'ipsec': '/var/log/syslog',
            'wireguard': '/var/log/syslog'  # WireGuard logs to syslog
        }
        
        log_file = log_files.get(protocol.lower())
        if not log_file:
            return jsonify({'error': 'Unsupported protocol'}), 400
        
        try:
            import subprocess
            
            if protocol.lower() == 'openvpn':
                # Get OpenVPN specific logs
                result = subprocess.run(
                    ['tail', '-n', str(lines), log_file],
                    capture_output=True, text=True
                )
            else:
                # Filter syslog for protocol-specific entries
                if protocol.lower() in ['ikev2', 'ipsec']:
                    grep_pattern = 'charon'
                else:  # wireguard
                    grep_pattern = 'wireguard'
                
                result = subprocess.run(
                    f'grep "{grep_pattern}" {log_file} | tail -n {lines}',
                    shell=True, capture_output=True, text=True
                )
            
            if result.returncode == 0:
                logs = result.stdout.strip().split('\n') if result.stdout.strip() else []
            else:
                logs = []
            
        except Exception:
            logs = []
        
        return jsonify({
            'success': True,
            'protocol': protocol.upper(),
            'logs': logs,
            'line_count': len(logs)
        })
        
    except Exception as e:
        logger.error(f"Server logs error: {e}")
        return jsonify({'error': 'Failed to get server logs'}), 500

@vpn_server_bp.route('/server/statistics', methods=['GET'])
@token_required
def get_server_statistics(current_user):
    """Get comprehensive server statistics"""
    try:
        vpn_manager = VPNServerManager()
        status = vpn_manager.get_server_status()
        
        # Calculate overall statistics
        total_clients = sum(proto.get('client_count', 0) for proto in status.values())
        running_servers = sum(1 for proto in status.values() if proto.get('running', False))
        
        statistics = {
            'overview': {
                'total_clients': total_clients,
                'running_servers': running_servers,
                'total_servers': len(status),
                'server_ip': vpn_manager.server_ip
            },
            'protocols': {}
        }
        
        for protocol, proto_status in status.items():
            statistics['protocols'][protocol] = {
                'running': proto_status.get('running', False),
                'port': proto_status.get('port', 0),
                'client_count': proto_status.get('client_count', 0),
                'clients': proto_status.get('clients', [])
            }
        
        return jsonify({
            'success': True,
            'statistics': statistics
        })
        
    except Exception as e:
        logger.error(f"Server statistics error: {e}")
        return jsonify({'error': 'Failed to get server statistics'}), 500