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univnautes / etc / inc / dyndns.class @ b8137fc2

1
<?php
2
	/*
3
	 * PHP.updateDNS (pfSense version)
4
	 *
5
	 * +====================================================+
6
	 *  Services Supported:
7
	 *    - DynDns (dyndns.org) [dynamic, static, custom]
8
	 *    - DHSDns (dhs.org)
9
	 *    - No-IP (no-ip.com)
10
	 *    - EasyDNS (easydns.com)
11
	 *    - DHS (www.dhs.org)
12
	 *    - HN (hn.org) -- incomplete checking!
13
	 *    - DynS (dyns.org)
14
	 *    - ZoneEdit (zoneedit.com)
15
	 *    - FreeDNS (freedns.afraid.org)
16
	 *    - Loopia (loopia.se)
17
	 *    - StaticCling (staticcling.org)
18
	 *    - DNSexit (dnsexit.com)
19
	 *    - OpenDNS (opendns.com)
20
	 *    - Namecheap (namecheap.com)
21
	 *    - HE.net (dns.he.net)
22
	 *    - HE.net IPv6 (dns.he.net)
23
	 *    - HE.net Tunnelbroker IP update (ipv4.tunnelbroker.net)
24
	 *    - SelfHost (selfhost.de)
25
	 *    - Amazon Route 53 (aws.amazon.com)
26
	 *    - DNS-O-Matic (dnsomatic.com)
27
	 *    - Custom DDNS (any URL)
28
	 *    - Custom DDNS IPv6 (any URL)
29
	 *    - CloudFlare (www.cloudflare.com)
30
 	 *    - Eurodns (eurodns.com)
31
 	 *    - GratisDNS (gratisdns.dk)
32
     *    - City Network (citynetwork.se)
33
	 * +----------------------------------------------------+
34
	 *  Requirements:
35
	 *    - PHP version 4.0.2 or higher with the CURL Library and the PCRE Library
36
	 * +----------------------------------------------------+
37
	 *  Public Functions
38
	 *    - updatedns()
39
	 *
40
	 *  Private Functions
41
	 *    - _update()
42
	 *    - _checkStatus()
43
	 *    - _error()
44
	 *    - _detectChange()
45
	 *    - _debug()
46
	 *    - _checkIP()
47
	 * +----------------------------------------------------+
48
	 *  DynDNS Dynamic - Last Tested: 12 July 2005
49
	 *  DynDNS Static  - Last Tested: NEVER
50
	 *  DynDNS Custom  - Last Tested: NEVER
51
	 *  No-IP          - Last Tested: 20 July 2008
52
	 *  HN.org         - Last Tested: 12 July 2005
53
	 *  EasyDNS        - Last Tested: 20 July 2008
54
	 *  DHS            - Last Tested: 12 July 2005
55
	 *  ZoneEdit       - Last Tested: NEVER
56
	 *  Dyns           - Last Tested: NEVER
57
	 *  ODS            - Last Tested: 02 August 2005
58
	 *  FreeDNS        - Last Tested: 23 Feb 2011
59
	 *  Loopia         - Last Tested: NEVER
60
	 *  StaticCling    - Last Tested: 27 April 2006
61
	 *  DNSexit	   - Last Tested: 20 July 2008
62
	 *  OpenDNS	   - Last Tested: 4 August 2008
63
	 *  Namecheap	   - Last Tested: 31 August 2010
64
	 *  HE.net         - Last Tested: 7 July 2013
65
	 *  HE.net IPv6    - Last Tested: 7 July 2013
66
	 *  HE.net Tunnel  - Last Tested: 28 June 2011
67
	 *  SelfHost       - Last Tested: 26 December 2011
68
	 *  Amazon Route 53 - Last tested: 01 April 2012
69
	 *  DNS-O-Matic	   - Last Tested: 9 September 2010
70
	 *  CloudFlare     - Last Tested: 30 May 2013
71
  	 *  Eurodns	   - Last Tested: 27 June 2013
72
  	 *  GratisDNS      - Last Tested: 15 August 2012
73
	 *  OVH DynHOST	   - Last Tested: NEVER
74
     *  City Network   - Last Tested: 13 November 2013
75
	 * +====================================================+
76
	 *
77
	 * @author 	E.Kristensen
78
	 * @link    	http://www.idylldesigns.com/projects/phpdns/
79
	 * @version 	0.8
80
	 * @updated	13 October 05 at 21:02:42 GMT
81
	 *
82
	 * DNSexit/OpenDNS support and multiwan extension for pfSense by Ermal Luci
83
	 * Custom DNS support by Matt Corallo
84
	 *
85
	 */
86

    
87
	class updatedns {
88
		var $_cacheFile;
89
		var $_cacheFile_v6;
90
		var $_debugFile;
91
		var $_UserAgent = 'User-Agent: phpDynDNS/0.7';
92
		var $_errorVerbosity = 0;
93
		var $_dnsService;
94
		var $_dnsUser;
95
		var $_dnsPass;
96
		var $_dnsHost;
97
		var $_dnsIP;
98
		var $_dnsWildcard;
99
		var $_dnsMX;
100
		var $_dnsBackMX;
101
		var $_dnsServer;
102
		var $_dnsPort;
103
		var $_dnsUpdateURL;
104
		var $_dnsZoneID;
105
		var $_dnsTTL;
106
		var $status;
107
		var $_debugID;
108
		var $_if;
109
		var $_dnsResultMatch;
110
		var $_dnsRequestIf;
111
		var $_dnsRequestIfIP;
112
		var $_dnsVerboseLog;
113
		var $_curlIpresolveV4;
114
		var $_curlSslVerifypeer;
115
		var $_dnsMaxCacheAgeDays;
116
		var $_dnsDummyUpdateDone;
117
		var $_forceUpdateNeeded;
118
		var $_useIPv6;
119
		
120
		/* 
121
		 * Public Constructor Function (added 12 July 05) [beta]
122
		 *   - Gets the dice rolling for the update. 
123
		 *   - $dnsResultMatch should only be used with $dnsService = 'custom'
124
		 *   -  $dnsResultMatch is parsed for '%IP%', which is the IP the provider was updated to, 
125
		 *   -  it is otherwise expected to be exactly identical to what is returned by the Provider.
126
		 *   - $dnsUser, and $dnsPass indicate HTTP Auth for custom DNS, if they are needed in the URL (GET Variables), include them in $dnsUpdateURL.
127
		 *   - $For custom requests, $dnsUpdateURL is parsed for '%IP%', which is replaced with the new IP.
128
		 */
129
		function updatedns ($dnsService = '', $dnsHost = '', $dnsUser = '', $dnsPass = '',
130
				    $dnsWildcard = 'OFF', $dnsMX = '', $dnsIf = '', $dnsBackMX = '',
131
				    $dnsServer = '', $dnsPort = '', $dnsUpdateURL = '', $forceUpdate = false,
132
				    $dnsZoneID ='', $dnsTTL='', $dnsResultMatch = '', $dnsRequestIf = '',
133
				    $dnsID = '', $dnsVerboseLog = false, $curlIpresolveV4 = false, $curlSslVerifypeer = true) {
134
			
135
			global $config, $g;
136
			
137
			$this->_cacheFile = "{$g['conf_path']}/dyndns_{$dnsIf}{$dnsService}" . escapeshellarg($dnsHost) . "{$dnsID}.cache";
138
			$this->_cacheFile_v6 = "{$g['conf_path']}/dyndns_{$dnsIf}{$dnsService}" . escapeshellarg($dnsHost) . "{$dnsID}_v6.cache";
139
			$this->_debugFile = "{$g['varetc_path']}/dyndns_{$dnsIf}{$dnsService}" . escapeshellarg($dnsHost) . "{$dnsID}.debug";
140

    
141
			$this->_curlIpresolveV4 = $curlIpresolveV4;
142
			$this->_curlSslVerifypeer = $curlSslVerifypeer;
143
			$this->_dnsVerboseLog = $dnsVerboseLog;
144
			if ($this->_dnsVerboseLog)
145
				log_error("DynDns: updatedns() starting");
146

    
147
			$dyndnslck = lock("DDNS".$dnsID, LOCK_EX);
148

    
149
			if (!$dnsService) $this->_error(2);
150
			switch ($dnsService) {
151
			case 'freedns':
152
				if (!$dnsHost) $this->_error(5);
153
				break;
154
			case 'namecheap':
155
				if (!$dnsPass) $this->_error(4);
156
				if (!$dnsHost) $this->_error(5);
157
				break;
158
			case 'route53':
159
				if (!$dnsZoneID) $this->_error(8);
160
				if (!$dnsTTL) $this->_error(9);
161
				break;
162
			case 'custom':
163
				if (!$dnsUpdateURL) $this->_error(7);
164
				break;
165
			default:
166
				if (!$dnsUser) $this->_error(3);
167
				if (!$dnsPass) $this->_error(4);
168
				if (!$dnsHost) $this->_error(5);
169
			}
170
			
171
			switch ($dnsService) {
172
			case 'he-net-v6':
173
			case 'custom-v6':
174
				$this->_useIPv6 = true;
175
				break;
176
			default:
177
				$this->_useIPv6 = false;
178
			}
179
			$this->_dnsService = strtolower($dnsService);
180
			$this->_dnsUser = $dnsUser;
181
			$this->_dnsPass = $dnsPass;
182
			$this->_dnsHost = $dnsHost;
183
			$this->_dnsServer = $dnsServer;
184
			$this->_dnsPort = $dnsPort;
185
			$this->_dnsWildcard = $dnsWildcard;
186
			$this->_dnsMX = $dnsMX;
187
			$this->_dnsZoneID = $dnsZoneID;
188
			$this->_dnsTTL = $dnsTTL;
189
			$this->_if = get_failover_interface($dnsIf);
190
			$this->_checkIP();
191
			$this->_dnsUpdateURL = $dnsUpdateURL;
192
			$this->_dnsResultMatch = $dnsResultMatch;
193
			$this->_dnsRequestIf = get_failover_interface($dnsRequestIf);
194
			if ($this->_dnsVerboseLog)
195
				log_error("DynDNS ({$this->_dnsHost}): running get_failover_interface for {$dnsRequestIf}. found {$this->_dnsRequestIf}");
196
			$this->_dnsRequestIfIP = get_interface_ip($dnsRequestIf);
197
			$this->_dnsMaxCacheAgeDays = 25;
198
			$this->_dnsDummyUpdateDone = false;
199
			$this->_forceUpdateNeeded = $forceUpdate;
200
			
201
			// Ensure that we were able to lookup the IP
202
			if(!is_ipaddr($this->_dnsIP)) {
203
				log_error("DynDNS ({$this->_dnsHost}) There was an error trying to determine the public IP for interface - {$dnsIf}({$this->_if}). Probably interface is not a WAN interface.");
204
				unlock($dyndnslck);
205
				return;
206
			}
207

    
208
			$this->_debugID = rand(1000000, 9999999);
209
			
210
			if ($forceUpdate == false && $this->_detectChange() == false) {
211
				$this->_error(10);
212
			} else {
213
				switch ($this->_dnsService) {
214
				case 'dnsomatic':
215
				case 'dyndns':
216
				case 'dyndns-static':
217
				case 'dyndns-custom':
218
				case 'dhs':
219
				case 'noip':
220
				case 'noip-free':
221
				case 'easydns':
222
				case 'hn':
223
				case 'zoneedit':
224
				case 'dyns':
225
				case 'ods':
226
				case 'freedns':
227
				case 'loopia':
228
				case 'staticcling':
229
				case 'dnsexit':
230
				case 'custom':
231
				case 'custom-v6':
232
				case 'opendns':
233
				case 'namecheap':
234
				case 'he-net':
235
				case 'he-net-v6':
236
				case 'selfhost':
237
				case 'he-net-tunnelbroker':
238
				case 'route53':
239
				case 'cloudflare':
240
				case 'eurodns':
241
				case 'gratisdns':
242
				case 'ovh-dynhost':
243
                case 'citynetwork':
244
					$this->_update();
245
					if($this->_dnsDummyUpdateDone == true) {
246
						// If a dummy update was needed, then sleep a while and do the update again to put the proper address back.
247
						// Some providers (e.g. No-IP free accounts) need to have at least 1 address change every month.
248
						// If the address has not changed recently, or the user did "Force Update", then the code does
249
						// a dummy address change for providers like this.
250
						sleep(10);
251
						$this->_update();
252
					}
253
					break;
254
				default:
255
					$this->_error(6);
256
					break;
257
				}
258
			}
259

    
260
			unlock($dyndnslck);
261
		}
262
			
263
		/*
264
		 * Private Function (added 12 July 05) [beta]
265
		 *   Send Update To Selected Service.
266
		 */
267
		function _update() {
268
		
269
			if ($this->_dnsVerboseLog)
270
				log_error("DynDNS ({$this->_dnsHost}): DynDns _update() starting.");
271
		
272
			if ($this->_dnsService != 'ods' and $this->_dnsService != 'route53 ') {
273
				$ch = curl_init();
274
				curl_setopt($ch, CURLOPT_HEADER, 0);
275
				curl_setopt($ch, CURLOPT_USERAGENT, $this->_UserAgent);
276
				curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
277
				curl_setopt($ch, CURLOPT_INTERFACE, $this->_dnsRequestIfIP);
278
				curl_setopt($ch, CURLOPT_TIMEOUT, 120); // Completely empirical
279
			}
280

    
281
			switch ($this->_dnsService) {
282
				case 'dyndns':
283
				case 'dyndns-static':
284
				case 'dyndns-custom':
285
					$needsIP = FALSE;
286
					if ($this->_dnsVerboseLog)
287
						log_error("DynDNS: ({$this->_dnsHost}) DNS update() starting.");
288
					if (isset($this->_dnsWildcard) && $this->_dnsWildcard != "OFF") $this->_dnsWildcard = "ON";
289
					curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
290
					curl_setopt($ch, CURLOPT_USERPWD, $this->_dnsUser.':'.$this->_dnsPass);
291
					$server = "https://members.dyndns.org/nic/update";
292
					$port = "";
293
					if($this->_dnsServer)
294
						$server = $this->_dnsServer;
295
					if($this->_dnsPort)
296
						$port = ":" . $this->_dnsPort;
297
					curl_setopt($ch, CURLOPT_URL, $server .$port . '?system=dyndns&hostname=' . $this->_dnsHost . '&myip=' . $this->_dnsIP . '&wildcard='.$this->_dnsWildcard . '&mx=' . $this->_dnsMX . '&backmx=NO');
298
					break;
299
				case 'dhs':
300
					$needsIP = TRUE;
301
					$post_data['hostscmd'] = 'edit';
302
					$post_data['hostscmdstage'] = '2';
303
					$post_data['type'] = '4';
304
					$post_data['updatetype'] = 'Online';
305
					$post_data['mx'] = $this->_dnsMX;
306
					$post_data['mx2'] = '';
307
					$post_data['txt'] = '';
308
					$post_data['offline_url'] = '';
309
					$post_data['cloak'] = 'Y';
310
					$post_data['cloak_title'] = '';
311
					$post_data['ip'] = $this->_dnsIP;
312
					$post_data['domain'] = 'dyn.dhs.org';
313
					$post_data['hostname'] = $this->_dnsHost;
314
					$post_data['submit'] = 'Update';
315
					curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
316
					$server = "https://members.dhs.org/nic/hosts";
317
					$port = "";
318
					if($this->_dnsServer)
319
						$server = $this->_dnsServer;
320
					if($this->_dnsPort)
321
						$port = ":" . $this->_dnsPort;					
322
					curl_setopt($ch, CURLOPT_URL, '{$server}{$port}');
323
					curl_setopt($ch, CURLOPT_USERPWD, $this->_dnsUser.':'.$this->_dnsPass);
324
					curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
325
					break;
326
				case 'noip':
327
				case 'noip-free':
328
					$needsIP = TRUE;
329
					curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
330
					$server = "https://dynupdate.no-ip.com/ducupdate.php";
331
					$port = "";
332
					if($this->_dnsServer)
333
						$server = $this->_dnsServer;
334
					if($this->_dnsPort)
335
						$port = ":" . $this->_dnsPort;
336
					if(($this->_dnsService == "noip-free") && 
337
					   ($this->_forceUpdateNeeded == true) && 
338
					   ($this->_dnsDummyUpdateDone == false)) {
339
						// Update the IP to a dummy value to force No-IP free accounts to see a change.
340
						$iptoset = "192.168.1.1";
341
						$this->_dnsDummyUpdateDone = true;
342
						log_error("DynDNS ({$this->_dnsHost}): Processing dummy update on No-IP free account. IP temporarily set to " . $iptoset);
343
					} else {
344
						$iptoset = $this->_dnsIP;
345
					}
346
					curl_setopt($ch, CURLOPT_URL, $server . $port . '?username=' . urlencode($this->_dnsUser) . '&pass=' . urlencode($this->_dnsPass) . '&hostname=' . $this->_dnsHost.'&ip=' . $iptoset);
347
					break;
348
				case 'easydns':
349
					$needsIP = TRUE;
350
					curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
351
					curl_setopt($ch, CURLOPT_USERPWD, $this->_dnsUser.':'.$this->_dnsPass);
352
					$server = "https://members.easydns.com/dyn/dyndns.php";
353
					$port = "";
354
					if($this->_dnsServer)
355
						$server = $this->_dnsServer;
356
					if($this->_dnsPort)
357
						$port = ":" . $this->_dnsPort;
358
					curl_setopt($ch, CURLOPT_URL, $server . $port . '?hostname=' . $this->_dnsHost . '&myip=' . $this->_dnsIP . '&wildcard=' . $this->_dnsWildcard . '&mx=' . $this->_dnsMX . '&backmx=' . $this->_dnsBackMX);
359
					break;
360
				case 'hn':
361
					$needsIP = TRUE;
362
					curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
363
					curl_setopt($ch, CURLOPT_USERPWD, $this->_dnsUser.':'.$this->_dnsPass);
364
					$server = "http://dup.hn.org/vanity/update";
365
					$port = "";
366
					if($this->_dnsServer)
367
						$server = $this->_dnsServer;
368
					if($this->_dnsPort)
369
						$port = ":" . $this->_dnsPort;
370
					curl_setopt($ch, CURLOPT_URL, $server . $port . '?ver=1&IP=' . $this->_dnsIP);
371
					break;
372
				case 'zoneedit':
373
					$needsIP = FALSE;
374
					curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
375
					curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
376
					curl_setopt($ch, CURLOPT_USERPWD, $this->_dnsUser.':'.$this->_dnsPass);
377

    
378
					$server = "https://dynamic.zoneedit.com/auth/dynamic.html";
379
					$port = "";
380
					if($this->_dnsServer)
381
						$server = $this->_dnsServer;
382
					if($this->_dnsPort)
383
						$port = ":" . $this->_dnsPort;
384
					curl_setopt($ch, CURLOPT_URL, "{$server}{$port}?host=" .$this->_dnsHost);
385
					break;
386
				case 'dyns':
387
					$needsIP = FALSE;
388
					$server = "https://www.dyns.cx/postscript011.php";
389
					$port = "";
390
					if($this->_dnsServer)
391
						$server = $this->_dnsServer;
392
					if($this->_dnsPort)
393
						$port = ":" . $this->_dnsPort;					
394
					curl_setopt($ch, CURLOPT_URL, $server . $port . '?username=' . urlencode($this->_dnsUser) . '&password=' . $this->_dnsPass . '&host=' . $this->_dnsHost);
395
					break;
396
				case 'ods':
397
					$needsIP = FALSE;
398
					$misc_errno = 0;
399
					$misc_error = "";
400
					$server = "ods.org";
401
					$port = "";
402
					if($this->_dnsServer)
403
						$server = $this->_dnsServer;
404
					if($this->_dnsPort)
405
						$port = ":" . $this->_dnsPort;						
406
					$this->con['socket'] = fsockopen("{$server}{$port}", "7070", $misc_errno, $misc_error, 30);
407
					/* Check that we have connected */
408
					if (!$this->con['socket']) {
409
						print "error! could not connect.";
410
						break;
411
					}
412
					/* Here is the loop. Read the incoming data (from the socket connection) */
413
					while (!feof($this->con['socket'])) {
414
						$this->con['buffer']['all'] = trim(fgets($this->con['socket'], 4096));
415
						$code = substr($this->con['buffer']['all'], 0, 3);
416
						sleep(1);
417
						switch($code) {
418
							case 100:
419
								fputs($this->con['socket'], "LOGIN ".$this->_dnsUser." ".$this->_dnsPass."\n");
420
								break;
421
							case 225:
422
								fputs($this->con['socket'], "DELRR ".$this->_dnsHost." A\n");
423
								break;
424
							case 901:
425
								fputs($this->con['socket'], "ADDRR ".$this->_dnsHost." A ".$this->_dnsIP."\n");
426
								break;
427
							case 795:
428
								fputs($this->con['socket'], "QUIT\n");
429
								break;
430
						}
431
					}
432
					$this->_checkStatus(0, $code);
433
					break;
434
				case 'freedns':
435
					$needIP = FALSE;
436
					curl_setopt($ch, CURLOPT_URL, 'https://freedns.afraid.org/dynamic/update.php?' . $this->_dnsPass);
437
					break;
438
				case 'dnsexit':
439
					$needsIP = TRUE;
440
					curl_setopt($ch, CURLOPT_URL, 'https://www.dnsexit.com/RemoteUpdate.sv?login='.$this->_dnsUser. '&password='.$this->_dnsPass.'&host='.$this->_dnsHost.'&myip='.$this->_dnsIP);
441
					break;
442
				case 'loopia':
443
					$needsIP = TRUE;
444
					curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
445
					curl_setopt($ch, CURLOPT_USERPWD, $this->_dnsUser.':'.$this->_dnsPass);
446
					curl_setopt($ch, CURLOPT_URL, 'https://dns.loopia.se/XDynDNSServer/XDynDNS.php?hostname='.$this->_dnsHost.'&myip='.$this->_dnsIP);
447
					break;
448
				case 'opendns':
449
					$needsIP = FALSE;
450
					if (isset($this->_dnsWildcard) && $this->_dnsWildcard != "OFF") $this->_dnsWildcard = "ON";
451
					curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
452
					curl_setopt($ch, CURLOPT_USERPWD, $this->_dnsUser.':'.$this->_dnsPass);
453
					$server = "https://updates.opendns.com/nic/update?hostname=". $this->_dnsHost;
454
					$port = "";
455
					if($this->_dnsServer)
456
						$server = $this->_dnsServer;
457
					if($this->_dnsPort)
458
						$port = ":" . $this->_dnsPort;
459
					curl_setopt($ch, CURLOPT_URL, $server .$port);
460
					break;
461

    
462
				case 'staticcling':
463
					$needsIP = FALSE;
464
					curl_setopt($ch, CURLOPT_URL, 'https://www.staticcling.org/update.html?login='.$this->_dnsUser.'&pass='.$this->_dnsPass);
465
					break;	                    
466
				case 'dnsomatic':
467
					/* Example syntax 
468
						https://username:password@updates.dnsomatic.com/nic/update?hostname=yourhostname&myip=ipaddress&wildcard=NOCHG&mx=NOCHG&backmx=NOCHG
469
					*/
470
					$needsIP = FALSE;
471
					if ($this->_dnsVerboseLog)
472
						log_error("DNS-O-Matic: DNS update() starting.");
473
					if (isset($this->_dnsWildcard) && $this->_dnsWildcard != "OFF") $this->_dnsWildcard = "ON";
474
					curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
475
					/*
476
					Reference: https://www.dnsomatic.com/wiki/api
477
						DNS-O-Matic usernames are 3-25 characters.
478
						DNS-O-Matic passwords are 6-20 characters.
479
						All ASCII letters and numbers accepted.
480
						Dots, dashes, and underscores allowed, but not at the beginning or end of the string.
481
					Required: "rawurlencode" http://www.php.net/manual/en/function.rawurlencode.php
482
						Encodes the given string according to RFC 3986.
483
					*/
484
					$server = "https://" . rawurlencode($this->_dnsUser) . ":" . rawurlencode($this->_dnsPass) . "@updates.dnsomatic.com/nic/update?hostname=";
485
					if($this->_dnsServer)
486
						$server = $this->_dnsServer;
487
					if($this->_dnsPort)
488
						$port = ":" . $this->_dnsPort;
489
					curl_setopt($ch, CURLOPT_URL, $server . $this->_dnsHost . '&myip=' . $this->_dnsIP . '&wildcard='.$this->_dnsWildcard . '&mx=' . $this->_dnsMX . '&backmx=NOCHG');
490
					break;
491
				case 'namecheap':
492
					/* Example:
493
						https://dynamicdns.park-your-domain.com/update?host=[host_name]&domain=[domain.com]&password=[domain_password]&ip=[your_ip]
494
					*/
495
					$needsIP = FALSE;
496
					if ($this->_dnsVerboseLog)
497
						log_error("Namecheap ({$this->_dnsHost}): DNS update() starting.");
498
					curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
499
					$dparts = explode(".", trim($this->_dnsHost));
500
					$domain_part_count = ($dparts[count($dparts)-1] == "uk") ? 3 : 2;
501
					$domain_offset = count($dparts) - $domain_part_count;
502
					$hostname = implode(".", array_slice($dparts, 0, $domain_offset));
503
					$domain = implode(".", array_slice($dparts, $domain_offset));
504
					$dnspass = trim($this->_dnsPass);
505
					$server = "https://dynamicdns.park-your-domain.com/update?host={$hostname}&domain={$domain}&password={$dnspass}&ip={$this->_dnsIP}";
506
					curl_setopt($ch, CURLOPT_URL, $server);
507
					break;
508
				case 'he-net':
509
				case 'he-net-v6':
510
					$needsIP = FALSE;
511
					if ($this->_dnsVerboseLog)
512
						log_error("HE.net ({$this->_dnsHost}): DNS update() starting.");
513
					$server = "https://dyn.dns.he.net/nic/update?";
514
					curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
515
					curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4 );
516
					curl_setopt($ch, CURLOPT_URL, $server . 'hostname=' . $this->_dnsHost . '&password=' . $this->_dnsPass . '&myip=' . $this->_dnsIP);
517
					break;
518
				case 'he-net-tunnelbroker':
519
					$needsIP = FALSE;
520
					if ($this->_dnsVerboseLog)
521
						log_error("HE.net Tunnelbroker: DNS update() starting.");
522
					$server = "https://ipv4.tunnelbroker.net/ipv4_end.php?";
523
					curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
524
					curl_setopt($ch, CURLOPT_USERPWD, $this->_dnsUser . ':' . $this->_dnsPass);
525
					curl_setopt($ch, CURLOPT_URL, $server . 'tid=' . $this->_dnsHost);
526
					break;
527
				case 'selfhost':
528
					$needsIP = FALSE;
529
					if ($this->_dnsVerboseLog)
530
						log_error("SelfHost: DNS update() starting.");
531
					if (isset($this->_dnsWildcard) && $this->_dnsWildcard != "OFF") $this->_dnsWildcard = "ON";
532
					curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
533
					curl_setopt($ch, CURLOPT_USERPWD, $this->_dnsUser.':'.$this->_dnsPass);
534
					$server = "https://carol.selfhost.de/nic/update";
535
					$port = "";
536
					if($this->_dnsServer)
537
						$server = $this->_dnsServer;
538
					if($this->_dnsPort)
539
						$port = ":" . $this->_dnsPort;
540
					curl_setopt($ch, CURLOPT_URL, $server .$port . '?system=dyndns&hostname=' . $this->_dnsHost . '&myip=' . $this->_dnsIP . '&wildcard='.$this->_dnsWildcard . '&mx=' . $this->_dnsMX . '&backmx=NO');
541
					break;
542
				case 'route53':
543
					if ($this->_dnsVerboseLog)
544
						log_error("Route53 ({$this->_dnsHost}): DNS update() starting.");
545
					
546
					/* Setting Variables */
547
					$hostname = "{$this->_dnsHost}.";
548
					$ZoneID = $this->_dnsZoneID;
549
					$AccessKeyId=$this->_dnsUser;
550
					$SecretAccessKey=$this->_dnsPass;
551
					$NewIP=$this->_dnsIP;
552
					$NewTTL=$this->_dnsTTL;
553

    
554
					/* Include Route 53 Library Class */
555
					require_once('/etc/inc/r53.class');
556

    
557
					/* Set Amazon AWS Credentials for this record */
558
					$r53 = new Route53($AccessKeyId, $SecretAccessKey);
559

    
560
					/* Function to find old values of records in Route 53 */
561
					if(!function_exists('Searchrecords')) {
562
						function SearchRecords($records, $name) {
563
							$result = array();
564
							foreach($records as $record) {
565
								if(strtolower($record['Name']) == strtolower($name)) {
566
									$result [] = $record;
567
								}
568
							}
569
							return ($result) ? $result : false;
570
						}
571
					}
572

    
573
					$records = $r53->listResourceRecordSets("/hostedzone/$ZoneID");
574

    
575
					/* Get IP for your hostname in Route 53 */
576
					if(false !== ($a_result = SearchRecords($records['ResourceRecordSets'], "$hostname"))) {
577
						$OldTTL=$a_result[0][TTL];
578
						$OldIP=$a_result[0][ResourceRecords][0];
579
					} else {
580
						$OldIP="";
581
					}
582

    
583
					/* Check if we need to update DNS Record */
584
					if ($OldIP !== $NewIP) {
585
						if(!empty($OldIP)) {
586
							/* Your Hostname already exists, deleting and creating it again */
587
							$changes = array();
588
							$changes[] = $r53->prepareChange(DELETE, $hostname, A, $OldTTL, $OldIP);
589
							$changes[] = $r53->prepareChange(CREATE, $hostname, A, $NewTTL, $NewIP);
590
							$result = $r53->changeResourceRecordSets("/hostedzone/$ZoneID", $changes);
591
						} else {
592
							/* Your Hostname does not exist yet, creating it */
593
							$changes = $r53->prepareChange(CREATE, $hostname, A, $NewTTL, $NewIP);
594
							$result = $r53->changeResourceRecordSets("/hostedzone/$ZoneID", $changes);
595
						}
596
					}
597
					$this->_checkStatus(0, $result);
598
					break;
599
				case 'custom':
600
				case 'custom-v6':
601
					if ($this->_dnsVerboseLog)
602
						log_error("Custom DDNS ({$this->_dnsHost}): DNS update() starting.");
603
					if (strstr($this->dnsUpdateURL, "%IP%")) {$needsIP = TRUE;} else {$needsIP = FALSE;}
604
					if ($this->_dnsUser != '') {
605
						if ($this->_curlIpresolveV4)
606
							curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4 );
607
						if ($this->_curlSslVerifypeer)
608
							curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, TRUE);
609
						else
610
							curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
611
						curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY); 
612
						curl_setopt($ch, CURLOPT_USERPWD, "{$this->_dnsUser}:{$this->_dnsPass}");
613
					}
614
					$server = str_replace("%IP%", $this->_dnsIP, $this->_dnsUpdateURL);
615
					if ($this->_dnsVerboseLog)
616
						log_error("Sending request to: ".$server);
617
					curl_setopt($ch, CURLOPT_URL, $server);
618
					break;
619
				case 'cloudflare':
620
					$needsIP = TRUE;
621
					$dnsServer ='www.cloudflare.com';
622
					$dnsHost = str_replace(' ','', $this->_dnsHost);
623
					$URL = "https://{$dnsServer}/api.html?a=DIUP&email={$this->_dnsUser}&tkn={$this->_dnsPass}&ip={$this->_dnsIP}&hosts={$dnsHost}";
624
					curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
625
					curl_setopt($ch, CURLOPT_URL, $URL);
626
					break;
627
				case 'eurodns':		
628
					$needsIP = TRUE;
629
					if ($this->_dnsVerboseLog)
630
						log_error("EuroDynDns ({$this->_dnsHost}) DNS update() starting.");
631
					curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
632
					curl_setopt($ch, CURLOPT_USERPWD, $this->_dnsUser.':'.$this->_dnsPass);
633
					$server = "https://eurodyndns.org/update/";
634
					$port = "";
635
					if($this->_dnsPort)
636
						$port = ":" . $this->_dnsPort;
637
					curl_setopt($ch, CURLOPT_URL, $server .$port . '?hostname=' . $this->_dnsHost . '&myip=' . $this->_dnsIP);
638
					break;
639
				case 'gratisdns':
640
					$needsIP = FALSE;
641
					if ($this->_dnsVerboseLog)
642
						log_error("GratisDNS.dk ({$this->_dnsHost}): DNS update() starting.");
643
					$server = "https://ssl.gratisdns.dk/ddns.phtml";
644
					curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
645
					list($hostname, $domain) = explode(".", $this->_dnsHost, 2);
646
					curl_setopt($ch, CURLOPT_URL, $server . '?u=' . $this->_dnsUser . '&p=' . $this->_dnsPass . '&h=' . $this->_dnsHost . '&d=' . $domain);
647
					break;
648
				case 'ovh-dynhost':
649
					$needsIP = FALSE;
650
					if ($this->_dnsVerboseLog)
651
						log_error("OVH DynHOST: ({$this->_dnsHost}) DNS update() starting.");
652
					if (isset($this->_dnsWildcard) && $this->_dnsWildcard != "OFF") $this->_dnsWildcard = "ON";
653
					curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
654
					curl_setopt($ch, CURLOPT_USERPWD, $this->_dnsUser.':'.$this->_dnsPass);
655
					$server = "https://www.ovh.com/nic/update";
656
					$port = "";
657
					if($this->_dnsServer)
658
						$server = $this->_dnsServer;
659
					if($this->_dnsPort)
660
						$port = ":" . $this->_dnsPort;
661
					curl_setopt($ch, CURLOPT_URL, $server .$port . '?system=dyndns&hostname=' . $this->_dnsHost . '&myip=' . $this->_dnsIP . '&wildcard='.$this->_dnsWildcard . '&mx=' . $this->_dnsMX . '&backmx=NO');
662
					break;
663
				case 'citynetwork':
664
					$needsIP = TRUE;
665
					if ($this->_dnsVerboseLog)
666
						log_error("City Network: ({$this->_dnsHost}) DNS update() starting.");
667
					curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
668
					curl_setopt($ch, CURLOPT_USERPWD, $this->_dnsUser.':'.$this->_dnsPass);
669
					$server = 'https://dyndns.citynetwork.se/nic/update';
670
					$port = "";
671
					if($this->_dnsServer)
672
						$server = $this->_dnsServer;
673
					if($this->_dnsPort)
674
						$port = ":" . $this->_dnsPort;
675
					curl_setopt($ch, CURLOPT_URL, $server .$port . '?hostname=' . $this->_dnsHost . '&myip=' . $this->_dnsIP);
676
					break;
677
				default:
678
					break;
679
			}
680
			if ($this->_dnsService != 'ods' and $this->_dnsService != 'route53') {
681
				$data = curl_exec($ch);
682
				$this->_checkStatus($ch, $data);
683
				@curl_close($ch);
684
			}
685
		}
686

    
687
		/*
688
		 * Private Function (added 12 July 2005) [beta]
689
		 *   Retrieve Update Status
690
		 */
691
		function _checkStatus($ch, $data) {
692
			if ($this->_dnsVerboseLog) {
693
				log_error("DynDNS ({$this->_dnsHost}): DynDns _checkStatus() starting.");
694
				log_error("DynDNS ({$this->_dnsHost}): Current Service: {$this->_dnsService}");
695
			}
696
			$successful_update = false;
697
			if ($this->_dnsService != 'ods' and $this->_dnsService != 'route53' && @curl_error($ch)) {
698
				$status = "Curl error occurred: " . curl_error($ch);
699
				log_error($status);
700
				$this->status = $status;
701
				return;
702
			}
703
			switch ($this->_dnsService) {
704
				case 'dnsomatic':
705
					if (preg_match('/badauth/i', $data)) {
706
						$status = "DNS-O-Matic ({$this->_dnsHost}): The DNS-O-Matic username or password specified are incorrect. No updates will be distributed to services until this is resolved.";
707
					} else if (preg_match('/notfqdn /i', $data)) {
708
						$status = "DNS-O-Matic ({$this->_dnsHost}): The hostname specified is not a fully-qualified domain name. If no hostnames included, notfqdn will be returned once.";
709
					} else if (preg_match('/nohost/i', $data)) {
710
						$status = "DNS-O-Matic ({$this->_dnsHost}): The hostname passed could not be matched to any services configured. The service field will be blank in the return code.";
711
					} else if (preg_match('/numhost/i', $data)) {
712
						$status = "DNS-O-Matic ({$this->_dnsHost}): You may update up to 20 hosts. numhost is returned if you try to update more than 20 or update a round-robin.";	
713
					} else if (preg_match('/abuse/i', $data)) {
714
						$status = "DNS-O-Matic ({$this->_dnsHost}): The hostname is blocked for update abuse.";
715
					} else if (preg_match('/good/i', $data)) {
716
						$status = "DNS-O-Matic ({$this->_dnsHost}): (Success) IP Address Changed Successfully! (".$this->_dnsIP.")";
717
						$successful_update = true;
718
					} else if (preg_match('/dnserr/i', $data)) {
719
						$status = "DNS-O-Matic ({$this->_dnsHost}): DNS error encountered. Stop updating for 30 minutes.";
720
					} else {
721
						$status = "DNS-O-Matic ({$this->_dnsHost}): (Unknown Response)";
722
						log_error("DNS-O-Matic ({$this->_dnsHost}): PAYLOAD: {$data}");
723
						$this->_debug($data);
724
					}
725
					break;
726
				case 'citynetwork':
727
					if (preg_match('/notfqdn/i', $data)) {
728
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) Not A FQDN!";
729
					} else if (preg_match('/nohost/i', $data)) {
730
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) No such host";
731
					} else if (preg_match('/nochg/i', $data)) {
732
						$status = "phpDynDNS ({$this->_dnsHost}): (Success) No Change In IP Address";
733
						$successful_update = true;
734
					} else if (preg_match('/good/i', $data)) {
735
						$status = "phpDynDNS ({$this->_dnsHost}): (Success) IP Address Changed Successfully! (".$this->_dnsIP.")";
736
						$successful_update = true;
737
					} else if (preg_match('/badauth/i', $data)) {
738
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) User Authorization Failed";
739
					} else {
740
						$status = "phpDynDNS ({$this->_dnsHost}): (Unknown Response)";
741
						log_error("phpDynDNS ({$this->_dnsHost}): PAYLOAD: {$data}");
742
						$this->_debug($data);
743
					}
744
					break;
745
				case 'ovh-dynhost':
746
				case 'dyndns':
747
					if (preg_match('/notfqdn/i', $data)) {
748
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) Not A FQDN!";
749
					} else if (preg_match('/nochg/i', $data)) {
750
						$status = "phpDynDNS ({$this->_dnsHost}): (Success) No Change In IP Address";
751
						$successful_update = true;
752
					} else if (preg_match('/good/i', $data)) {
753
						$status = "phpDynDNS ({$this->_dnsHost}): (Success) IP Address Changed Successfully! (".$this->_dnsIP.")";
754
						$successful_update = true;
755
					} else if (preg_match('/noauth/i', $data)) {
756
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) User Authorization Failed";
757
					} else {
758
						$status = "phpDynDNS ({$this->_dnsHost}): (Unknown Response)";
759
						log_error("phpDynDNS ({$this->_dnsHost}): PAYLOAD: {$data}");
760
						$this->_debug($data);
761
					}
762
					break;
763
				case 'dyndns-static':
764
					if (preg_match('/notfqdn/i', $data)) {
765
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) Not A FQDN!";
766
					} else if (preg_match('/nochg/i', $data)) {
767
						$status = "phpDynDNS ({$this->_dnsHost}): (Success) No Change In IP Address";
768
						$successful_update = true;
769
					} else if (preg_match('/good/i', $data)) {
770
						$status = "phpDynDNS ({$this->_dnsHost}): (Success) IP Address Changed Successfully!";
771
						$successful_update = true;
772
					} else if (preg_match('/noauth/i', $data)) {
773
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) User Authorization Failed";
774
					} else {
775
						$status = "phpDynDNS ({$this->_dnsHost}): (Unknown Response)";
776
						log_error("phpDynDNS ({$this->_dnsHost}): PAYLOAD: {$data}");
777
						$this->_debug($data);
778
					}
779
					break;
780
				case 'dyndns-custom':
781
					if (preg_match('/notfqdn/i', $data)) {
782
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) Not A FQDN!";
783
					} else if (preg_match('/nochg/i', $data)) {
784
						$status = "phpDynDNS: (Success) No Change In IP Address";
785
						$successful_update = true;
786
					} else if (preg_match('/good/i', $data)) {
787
						$status = "phpDynDNS ({$this->_dnsHost}): (Success) IP Address Changed Successfully!";
788
						$successful_update = true;
789
					} else if (preg_match('/noauth/i', $data)) {
790
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) User Authorization Failed";
791
					} else {
792
						$status = "phpDynDNS ({$this->_dnsHost}): (Unknown Response)";
793
						log_error("phpDynDNS ({$this->_dnsHost}): PAYLOAD: {$data}");
794
						$this->_debug($data);
795
					}
796
					break;
797
				case 'dhs':
798
					break;
799
				case 'noip':
800
				case 'noip-free':
801
					list($ip,$code) = explode(":",$data);
802
					switch ($code) {
803
						case 0:
804
							$status = "phpDynDNS ({$this->_dnsHost}): (Success) IP address is current, no update performed.";
805
							$successful_update = true;
806
							break;
807
						case 1:
808
							$status = "phpDynDNS ({$this->_dnsHost}): (Success) DNS hostname update successful.";
809
							$successful_update = true;
810
							break;
811
						case 2:
812
							$status = "phpDynDNS ({$this->_dnsHost}): (Error) Hostname supplied does not exist.";
813
							break;
814
						case 3:
815
							$status = "phpDynDNS ({$this->_dnsHost}): (Error) Invalid Username.";
816
							break;
817
						case 4:
818
							$status = "phpDynDNS ({$this->_dnsHost}): (Error) Invalid Password.";
819
							break;
820
						case 5:
821
							$status = "phpDynDNS ({$this->_dnsHost}): (Error) To many updates sent.";
822
							break;
823
						case 6:
824
							$status = "phpDynDNS ({$this->_dnsHost}): (Error) Account disabled due to violation of No-IP terms of service.";
825
							break;
826
						case 7:
827
							$status = "phpDynDNS ({$this->_dnsHost}): (Error) Invalid IP. IP Address submitted is improperly formatted or is a private IP address or is on a blacklist.";
828
							break;
829
						case 8:
830
							$status = "phpDynDNS ({$this->_dnsHost}): (Error) Disabled / Locked Hostname.";
831
							break;
832
						case 9:
833
							$status = "phpDynDNS ({$this->_dnsHost}): (Error) Host updated is configured as a web redirect and no update was performed.";
834
							break;
835
						case 10:
836
							$status = "phpDynDNS ({$this->_dnsHost}): (Error) Group supplied does not exist.";
837
							break;
838
						case 11:
839
							$status = "phpDynDNS ({$this->_dnsHost}): (Success) DNS group update is successful.";
840
							$successful_update = true;
841
							break;
842
						case 12:
843
							$status = "phpDynDNS ({$this->_dnsHost}): (Success) DNS group is current, no update performed.";
844
							$successful_update = true;
845
							break;
846
						case 13:
847
							$status = "phpDynDNS ({$this->_dnsHost}): (Error) Update client support not available for supplied hostname or group.";
848
							break;
849
						case 14:
850
							$status = "phpDynDNS ({$this->_dnsHost}): (Error) Hostname supplied does not have offline settings configured.";
851
							break;
852
						case 99:
853
							$status = "phpDynDNS ({$this->_dnsHost}): (Error) Client disabled. Client should exit and not perform any more updates without user intervention.";
854
							break;
855
						case 100:
856
							$status = "phpDynDNS ({$this->_dnsHost}): (Error) Client disabled. Client should exit and not perform any more updates without user intervention.";
857
							break;
858
						default:
859
							$status = "phpDynDNS ({$this->_dnsHost}): (Unknown Response)";
860
							$this->_debug("Unknown Response: ".$data);
861
							break;
862
					}
863
					break;
864
				case 'easydns':
865
					if (preg_match('/NOACCESS/i', $data)) {
866
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) Authentication Failed: Username and/or Password was Incorrect.";
867
					} else if (preg_match('/NOSERVICE/i', $data)) {
868
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) No Service: Dynamic DNS Service has been disabled for this domain.";
869
					} else if (preg_match('/ILLEGAL INPUT/i', $data)) {
870
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) Illegal Input: Self-Explanatory";
871
					} else if (preg_match('/TOOSOON/i', $data)) {
872
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) Too Soon: Not Enough Time Has Elapsed Since Last Update";
873
					} else if (preg_match('/NOERROR/i', $data)) {
874
						$status = "phpDynDNS ({$this->_dnsHost}): (Success) IP Updated Successfully!";
875
						$successful_update = true;
876
					} else {
877
						$status = "phpDynDNS ({$this->_dnsHost}): (Unknown Response)";
878
						log_error("phpDynDNS ({$this->_dnsHost}): PAYLOAD: {$data}");
879
						$this->_debug($data);
880
					}
881
					break;
882
				case 'hn':
883
					/* FIXME: add checks */
884
					break;
885
				case 'zoneedit':
886
					if (preg_match('/799/i', $data)) {
887
						$status = "phpDynDNS ({$this->_dnsHost}): (Error 799) Update Failed!";				
888
					} else if (preg_match('/700/i', $data)) {
889
						$status = "phpDynDNS ({$this->_dnsHost}): (Error 700) Update Failed!";
890
					} else if (preg_match('/200/i', $data)) {
891
						$status = "phpDynDNS ({$this->_dnsHost}): (Success) IP Address Updated Successfully!";
892
						$successful_update = true;
893
					} else if (preg_match('/201/i', $data)) {
894
						$status = "phpDynDNS ({$this->_dnsHost}): (Success) IP Address Updated Successfully!";
895
						$successful_update = true;						
896
					} else {
897
						$status = "phpDynDNS ({$this->_dnsHost}): (Unknown Response)";
898
						log_error("phpDynDNS ({$this->_dnsHost}): PAYLOAD: {$data}");
899
						$this->_debug($data);
900
					}
901
					break;
902
				case 'dyns':
903
					if (preg_match("/400/i", $data)) {
904
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) Bad Request - The URL was malformed. Required parameters were not provided.";
905
					} else if (preg_match('/402/i', $data)) {
906
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) Update Too Soon - You have tried updating to quickly since last change.";
907
					} else if (preg_match('/403/i', $data)) {
908
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) Database Error - There was a server-sided database error.";
909
					} else if (preg_match('/405/i', $data)) {
910
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) Hostname Error - The hostname (".$this->_dnsHost.") doesn't belong to you.";
911
					} else if (preg_match('/200/i', $data)) {
912
						$status = "phpDynDNS ({$this->_dnsHost}): (Success) IP Address Updated Successfully!";
913
						$successful_update = true;
914
					} else {
915
						$status = "phpDynDNS ({$this->_dnsHost}): (Unknown Response)";
916
						log_error("phpDynDNS ({$this->_dnsHost}): PAYLOAD: {$data}");
917
						$this->_debug($data);
918
					}
919
					break;
920
				case 'ods':
921
					if (preg_match("/299/i", $data)) {
922
						$status = "phpDynDNS ({$this->_dnsHost}): (Success) IP Address Updated Successfully!";
923
						$successful_update = true;
924
					} else {
925
						$status = "phpDynDNS ({$this->_dnsHost}): (Unknown Response)";
926
						log_error("phpDynDNS ({$this->_dnsHost}): PAYLOAD: {$data}");
927
						$this->_debug($data);
928
					}
929
					break;
930
				case 'freedns':
931
					if (preg_match("/has not changed./i", $data)) {
932
						$status = "phpDynDNS ({$this->_dnsHost}): (Success) No Change In IP Address";
933
						$successful_update = true;
934
					} else if (preg_match("/Updated/i", $data)) {
935
						$status = "phpDynDNS ({$this->_dnsHost}): (Success) IP Address Changed Successfully!";
936
						$successful_update = true;
937
					} else {
938
						$status = "phpDynDNS ({$this->_dnsHost}): (Unknown Response)";
939
						log_error("phpDynDNS ({$this->_dnsHost}): PAYLOAD: {$data}");
940
						$this->_debug($data);
941
					} 
942
					break;
943
				case 'dnsexit':
944
					if (preg_match("/is the same/i", $data)) {
945
						$status = "phpDynDns ({$this->_dnsHost}): (Success) No Change In IP Address";
946
						$successful_update = true;
947
					} else if (preg_match("/Success/i", $data)) {
948
						$status = "phpDynDNS ({$this->_dnsHost}): (Success) IP Address Changed Successfully!";
949
						$successful_update = true;
950
					} else {
951
						$status = "phpDynDNS ({$this->_dnsHost}): (Unknown Response)";
952
						log_error("phpDynDNS ({$this->_dnsHost}): PAYLOAD: {$data}");
953
						$this->_debug($data);
954
					}
955
					break;
956
				case 'loopia':
957
					if (preg_match("/nochg/i", $data)) {
958
						$status = "phpDynDNS ({$this->_dnsHost}): (Success) No Change In IP Address";
959
						$successful_update = true;
960
					} else if (preg_match("/good/i", $data)) {
961
						$status = "phpDynDNS ({$this->_dnsHost}): (Success) IP Address Changed Successfully!";
962
						$successful_update = true;
963
					} else if (preg_match('/badauth/i', $data)) {
964
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) User Authorization Failed";
965
					} else {
966
						$status = "phpDynDNS ({$this->_dnsHost}): (Unknown Response)";
967
						log_error("phpDynDNS ({$this->_dnsHost}): PAYLOAD: {$data}");
968
						$this->_debug($data);
969
					}
970
					break;
971
				case 'opendns':
972
					if (preg_match('/badauth/i', $data)) {
973
						$status = "phpDynDNS({$this->_dnsHost}): (Error) Not a valid username or password!";
974
					} else if (preg_match('/nohost/i', $data)) {
975
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) Hostname you are trying to update does not exist.";
976
						$successful_update = true;
977
					} else if (preg_match('/good/i', $data)) {
978
						$status = "phpDynDNS ({$this->_dnsHost}): (Success) IP Address Changed Successfully! (".$this->_dnsIP.")";
979
						$successful_update = true;
980
					} else if (preg_match('/yours/i', $data)) {
981
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) hostname specified exists, but not under the username specified.";
982
					} else if (preg_match('/abuse/i', $data)) {
983
						$status = "phpDynDns ({$this->_dnsHost}): (Error) Updating too frequently, considered abuse.";
984
					} else {
985
						$status = "phpDynDNS ({$this->_dnsHost}): (Unknown Response)";
986
						log_error("phpDynDNS ({$this->_dnsHost}): PAYLOAD: {$data}");
987
						$this->_debug($data);
988
					}
989
					break;
990
				case 'staticcling':
991
					if (preg_match("/invalid ip/i", $data)) {
992
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) Bad Request - The IP provided was invalid.";
993
					} else if (preg_match('/required info missing/i', $data)) {
994
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) Bad Request - Required parameters were not provided.";
995
					} else if (preg_match('/invalid characters/i', $data)) {
996
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) Bad Request - Illegal characters in either the username or the password.";
997
					} else if (preg_match('/bad password/i', $data)) {
998
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) Invalid password.";
999
					} else if (preg_match('/account locked/i', $data)) {
1000
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) This account has been administratively locked.";
1001
					} else if (preg_match('/update too frequent/i', $data)) {
1002
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) Updating too frequently.";
1003
					} else if (preg_match('/DB error/i', $data)) {
1004
						$status = "phpDynDNS ({$this->_dnsHost}): (Error) Server side error.";
1005
					} else if (preg_match('/success/i', $data)) {
1006
						$status = "phpDynDNS ({$this->_dnsHost}): (Success) IP Address Updated Successfully!";
1007
						$successful_update = true;
1008
					} else {
1009
						$status = "phpDynDNS ({$this->_dnsHost}): (Unknown Response)";
1010
						log_error("phpDynDNS ({$this->_dnsHost}): PAYLOAD: {$data}");
1011
						$this->_debug($data);
1012
					}
1013
					break;
1014
				case 'namecheap':
1015
					$tmp = str_replace("^M", "", $data);
1016
					$ncresponse = @xml2array($tmp);
1017
					if (preg_match("/internal server error/i", $data)) {
1018
						$status = "phpDynDNS: (Error) Server side error.";
1019
					} else if (preg_match("/request is badly formed/i", $data)) {
1020
						$status = "phpDynDNS: (Error) Badly Formed Request (check your settings).";
1021
					} else if ($ncresponse['interface-response']['ErrCount'] === "0") {
1022
						$status = "phpDynDNS: (Success) IP Address Updated Successfully!";
1023
						$successful_update = true;
1024
					} else if (is_numeric($ncresponse['interface-response']['ErrCount']) && ($ncresponse['interface-response']['ErrCount'] > 0)) {
1025
						$status = "phpDynDNS: (Error) " . implode(", ", $ncresponse["interface-response"]["errors"]);
1026
						$successful_update = true;
1027
					} else {
1028
						$status = "phpDynDNS: (Unknown Response)";
1029
						log_error("phpDynDNS: PAYLOAD: {$data}");
1030
						$this->_debug($data);
1031
					}
1032
					break;
1033
					
1034
				case 'he-net':
1035
				case 'he-net-v6':
1036
					if (preg_match("/badip/i", $data)) {
1037
						$status = "phpDynDNS: (Error) Bad Request - The IP provided was invalid.";
1038
					} else if (preg_match('/nohost/i', $data)) {
1039
						$status = "phpDynDNS: (Error) Bad Request - A hostname was not provided.";
1040
					} else if (preg_match('/badauth/i', $data)) {
1041
						$status = "phpDynDNS: (Error) Invalid username or password.";
1042
					} else if (preg_match('/good/i', $data)) {
1043
						$status = "phpDynDNS: (Success) IP Address Updated Successfully!";
1044
						$successful_update = true;
1045
					} else if (preg_match('/nochg/i', $data)) {
1046
						$status = "phpDynDNS: (Success) No Change In IP Address.";
1047
						$successful_update = true;
1048
					} else {
1049
						$status = "phpDynDNS: (Unknown Response)";
1050
						log_error("phpDynDNS: PAYLOAD: {$data}");
1051
						$this->_debug($data);
1052
					}
1053
					break;
1054
				case 'he-net-tunnelbroker':
1055
					/*
1056
					-ERROR: Missing parameter(s).
1057
					-ERROR: Invalid API key or password
1058
					-ERROR: Tunnel not found
1059
					-ERROR: Another tunnel exists for this IP.
1060
					-ERROR: This tunnel is already associated with this IP address
1061
					+OK: Tunnel endpoint updated to: x.x.x.x
1062
					*/
1063
					if (preg_match("/Missing parameter/i", $data)) {
1064
						$status = "phpDynDNS: (Error) Bad Request - Missing/Invalid Parameters.";
1065
					} else if (preg_match('/Tunnel not found/i', $data)) {
1066
						$status = "phpDynDNS: (Error) Bad Request - Invalid Tunnel ID.";
1067
					} else if (preg_match('/Invalid API key or password/i', $data)) {
1068
						$status = "phpDynDNS: (Error) Invalid username or password.";
1069
					} else if (preg_match('/OK:/i', $data)) {
1070
						$status = "phpDynDNS: (Success) IP Address Updated Successfully!";
1071
						$successful_update = true;
1072
					} else if (preg_match('/This tunnel is already associated with this IP address/i', $data)) {
1073
						$status = "phpDynDNS: (Success) No Change In IP Address.";
1074
						$successful_update = true;
1075
					} else {
1076
						$status = "phpDynDNS: (Unknown Response)";
1077
						log_error("phpDynDNS: PAYLOAD: {$data}");
1078
						$this->_debug($data);
1079
					}
1080
					break;
1081
				case 'selfhost':
1082
					if (preg_match('/notfqdn/i', $data)) {
1083
						$status = "phpDynDNS: (Error) Not A FQDN!";
1084
					} else if (preg_match('/nochg/i', $data)) {
1085
						$status = "phpDynDNS: (Success) No Change In IP Address";
1086
						$successful_update = true;
1087
					} else if (preg_match('/good/i', $data)) {
1088
						$status = "phpDynDNS: (Success) IP Address Changed Successfully! (".$this->_dnsIP.")";
1089
						$successful_update = true;
1090
					} else if (preg_match('/noauth/i', $data)) {
1091
						$status = "phpDynDNS: (Error) User Authorization Failed";
1092
					} else {
1093
						$status = "phpDynDNS: (Unknown Response)";
1094
						log_error("phpDynDNS: PAYLOAD: {$data}");
1095
						$this->_debug($data);
1096
					}
1097
					break;
1098
				case 'route53':
1099
					$successful_update = true;
1100
					break;
1101
				case 'custom':
1102
				case 'custom-v6':
1103
					$successful_update = false;
1104
					if ($this->_dnsResultMatch == "") {
1105
						$successful_update = true;
1106
					}else {
1107
						$this->_dnsResultMatch = str_replace("%IP%", $this->_dnsIP, $this->_dnsResultMatch);
1108
						$matches = preg_split("/(?<!\\\\)\\|/", $this->_dnsResultMatch);
1109
						foreach($matches as $match) {
1110
							$match= str_replace("\\|", "|", $match);
1111
							if(strcmp($match, trim($data, "\t\n\r")) == 0)
1112
								$successful_update = true;
1113
						}
1114
						unset ($matches);
1115
					}
1116
					if ($successful_update == true)
1117
						$status = "phpDynDNS: (Success) IP Address Updated Successfully!";
1118
					else
1119
						$status = "phpDynDNS: (Error) Result did not match.";
1120
					break;
1121
				case 'cloudflare':
1122
					// recieve multipe results
1123
					$data = explode("\n",$data);
1124
					$lines = count($data)-1;
1125

    
1126
					// loop over the lines
1127
					for ($pos=0; ($successful_update || $pos == 0) && $pos < $lines; $pos++){
1128
						$resp = $data[$pos];
1129
						if (preg_match('/UAUTH/i', $resp)) {
1130
							$status = "DynDNS: The username specified is not authorized to update this hostname and domain.";
1131
						} else if (preg_match('/NOHOST/i', $resp)) {
1132
							$status = "DynDNS: No valid FQDN (fully qualified domain name) was specified";
1133
						} else if (preg_match('/INVLDHST/i', $resp)) {
1134
							$status = "DynDNS: An invalid hostname was specified. This may be due to the fact the hostname has not been created in the system. Creating new host names via clients is not supported.";
1135
						} else if (preg_match('/INVLDIP/i', $resp)) {
1136
							$status = "DynDNS: The IP address given is not valid.";
1137
						} else if (preg_match('/DUPHST/i', $resp)) {
1138
							$status = "DynDNS: Duplicate values exist for a record. Only single values for records are supported currently.";
1139
						} else if (preg_match('/NOUPDATE/i', $resp)) {
1140
							$status = "DynDNS: No changes made to the hostname (".strtok($resp,' ')."). Continual updates with no changes lead to blocked clients.";
1141
							$successful_update = true; //success if it is the same so that it saves
1142
						} else if (preg_match('/OK/i', $resp)) {
1143
							$status = "DynDNS: (Success) (".strtok($resp,' ').") IP Address for Changed Successfully!";
1144
							$successful_update = true;
1145
						} else {
1146
							$status = "DynDNS: (Unknown Response)";
1147
							log_error("DynDNS: PAYLOAD: {$resp}");
1148
							$this->_debug($resp);
1149
						}
1150
						log_error($status);
1151
					}
1152
					break;
1153
				case 'eurodns':
1154
					if (preg_match('/notfqdn/i', $data)) {
1155
						$status = "phpDynDNS: (Error) Not A FQDN!";
1156
					} else if (preg_match('/nochg/i', $data)) {
1157
						$status = "phpDynDNS: (Success) No Change In IP Address";
1158
						$successful_update = true;
1159
					} else if (preg_match('/good/i', $data)) {
1160
						$status = "phpDynDNS: (Success) IP Address Changed Successfully! (".$this->_dnsIP.")";
1161
						$successful_update = true;
1162
					} else if (preg_match('/badauth/i', $data)) {
1163
						$status = "phpDynDNS: (Error) User Authorization Failed";
1164
					} else {
1165
						$status = "phpDynDNS: (Unknown Response)";
1166
						log_error("phpDynDNS: PAYLOAD: {$data}");
1167
						$this->_debug($data);
1168
					}
1169
					break;
1170
				case 'gratisdns':
1171
					if (preg_match('/Forkerte værdier/i', $data)) {
1172
					        $status = "phpDynDNS: (Error) Wrong values - Update could not be completed.";
1173
					} else if (preg_match('/Bruger login: Bruger eksistere ikke/i', $data)) {
1174
					        $status = "phpDynDNS: (Error) Unknown username - User does not exist.";
1175
					} else if (preg_match('/Bruger login: 1Fejl i kodeord/i', $data)) {
1176
					        $status = "phpDynDNS: (Error) Wrong password - Remember password is case sensitive.";
1177
					} else if (preg_match('/Domæne kan IKKE administreres af bruger/i', $data)) {
1178
					        $status = "phpDynDNS: (Error) User unable to administer the selected domain.";
1179
					} else if (preg_match('/OK/i', $data)) {
1180
					        $status = "phpDynDNS: (Success) IP Address Updated Successfully!";
1181
					        $successful_update = true;
1182
					} else {
1183
					        $status = "phpDynDNS: (Unknown Response)";
1184
					        log_error("phpDynDNS: PAYLOAD: {$data}");
1185
					        $this->_debug($data);
1186
					}
1187
					break;
1188
			}
1189
			
1190
			if($successful_update == true) {
1191
				/* Write WAN IP to cache file */
1192
				$wan_ip = $this->_checkIP();
1193
				conf_mount_rw();
1194
				if ($this->_useIPv6 == false && $wan_ip > 0) {
1195
					$currentTime = time();
1196
					notify_all_remote(sprintf(gettext("DynDNS updated IP Address on %s (%s) to %s"), convert_real_interface_to_friendly_descr($this->_if), $this->_if, $wan_ip));
1197
					log_error("phpDynDNS: updating cache file {$this->_cacheFile}: {$wan_ip}");
1198
					@file_put_contents($this->_cacheFile, "{$wan_ip}:{$currentTime}");
1199
				} else
1200
					@unlink($this->_cacheFile);
1201
				if ($this->_useIPv6 == true && $wan_ip > 0) {
1202
					$currentTime = time();
1203
					notify_all_remote(sprintf(gettext("DynDNS updated IPv6 Address on %s (%s) to %s"), convert_real_interface_to_friendly_descr($this->_if), $this->_if, $wan_ip));
1204
					log_error("phpDynDNS: updating cache file {$this->_cacheFile_v6}: {$wan_ip}");
1205
					@file_put_contents($this->_cacheFile_v6, "{$wan_ip}|{$currentTime}");
1206
				} else
1207
					@unlink($this->_cacheFile_v6);
1208
				conf_mount_ro();
1209
			}
1210
			$this->status = $status;
1211
			log_error($status);
1212
		}
1213

    
1214
		/*
1215
		 * Private Function (added 12 July 05) [beta]
1216
		 *   Return Error, Set Last Error, and Die.
1217
		 */
1218
		function _error($errorNumber = '1') {
1219
			switch ($errorNumber) {
1220
				case 0:
1221
					break;
1222
				case 2:
1223
					$error = 'phpDynDNS: (ERROR!) No Dynamic DNS Service provider was selected.';
1224
					break;
1225
				case 3:
1226
					$error = 'phpDynDNS: (ERROR!) No Username Provided.';
1227
					break;
1228
				case 4:
1229
					$error = 'phpDynDNS: (ERROR!) No Password Provided.';
1230
					break;
1231
				case 5:
1232
					$error = 'phpDynDNS: (ERROR!) No Hostname Provided.';
1233
					break;
1234
				case 6:
1235
					$error = 'phpDynDNS: (ERROR!) The Dynamic DNS Service provided is not yet supported.';
1236
					break;
1237
				case 7:
1238
					$error = 'phpDynDNS: (ERROR!) No Update URL Provided.';
1239
					break;
1240
				case 8:
1241
					$status = "Route 53: (Error) Invalid ZoneID";
1242
					break;
1243
				case 9:
1244
					$status = "Route 53: (Error) Invalid TTL";
1245
					break;  
1246
				case 10:
1247
					$error = "phpDynDNS ({$this->_dnsHost}): No change in my IP address and/or " . $this->_dnsMaxCacheAgeDays . " days has not passed. Not updating dynamic DNS entry.";
1248
					break;
1249
				default:
1250
					$error = "phpDynDNS: (ERROR!) Unknown Response.";
1251
					/* FIXME: $data isn't in scope here */
1252
					/* $this->_debug($data); */
1253
					break;
1254
			}
1255
			$this->lastError = $error;
1256
			log_error($error);
1257
		}
1258

    
1259
		/*
1260
		 * Private Function (added 12 July 05) [beta]
1261
		 *   - Detect whether or not IP needs to be updated.
1262
		 *      | Written Specifically for pfSense (https://www.pfsense.org) may
1263
		 *      | work with other systems. pfSense base is FreeBSD.
1264
		 */
1265
		function _detectChange() {
1266
			global $debug;
1267

    
1268
			if ($debug)
1269
				log_error("DynDns ({$this->_dnsHost}): _detectChange() starting.");
1270
		
1271
			$currentTime = time();
1272

    
1273
			$wan_ip = $this->_checkIP();
1274
			if ($wan_ip == 0) {
1275
				log_error("DynDns ({$this->_dnsHost}): Current WAN IP could not be determined, skipping update process.");
1276
				return false;
1277
			}
1278
			$log_error = "DynDns ({$this->_dnsHost}): Current WAN IP: {$wan_ip} ";
1279

    
1280
			if ($this->_useIPv6 == true) {
1281
				if (file_exists($this->_cacheFile_v6)) {
1282
					$contents = file_get_contents($this->_cacheFile_v6);
1283
					list($cacheIP,$cacheTime) = explode('|', $contents);
1284
					$this->_debug($cacheIP.'/'.$cacheTime);
1285
					$initial = false;
1286
					$log_error .= "Cached IPv6: {$cacheIP} ";
1287
				} else {
1288
					conf_mount_rw();
1289
					$cacheIP = '::';
1290
					@file_put_contents($this->_cacheFile, "::|{$currentTime}");
1291
					conf_mount_ro();
1292
					$cacheTime = $currentTime;
1293
					$initial = true;
1294
					$log_error .= "No Cached IPv6 found.";
1295
				}
1296
			} else {
1297
				if (file_exists($this->_cacheFile)) {
1298
					$contents = file_get_contents($this->_cacheFile);
1299
					list($cacheIP,$cacheTime) = explode(':', $contents);
1300
					$this->_debug($cacheIP.'/'.$cacheTime);
1301
					$initial = false;
1302
					$log_error .= "Cached IP: {$cacheIP} ";
1303
				} else {
1304
					conf_mount_rw();
1305
					$cacheIP = '0.0.0.0';
1306
					@file_put_contents($this->_cacheFile, "0.0.0.0:{$currentTime}");
1307
					conf_mount_ro();
1308
					$cacheTime = $currentTime;
1309
					$initial = true;
1310
					$log_error .= "No Cached IP found.";
1311
				}
1312
			}
1313
			if ($this->_dnsVerboseLog)
1314
				log_error($log_error);
1315

    
1316
			// Convert seconds = days * hr/day * min/hr * sec/min
1317
			$maxCacheAgeSecs = $this->_dnsMaxCacheAgeDays * 24 * 60 * 60;
1318

    
1319
			$needs_updating = FALSE;
1320
			/* lets determine if the item needs updating */
1321
			if ($cacheIP != $wan_ip) {
1322
				$needs_updating = true;
1323
				$update_reason = "DynDns: cacheIP != wan_ip.  Updating. ";
1324
				$update_reason .= "Cached IP: {$cacheIP} WAN IP: {$wan_ip} ";
1325
			}
1326
			if (($currentTime - $cacheTime) > $maxCacheAgeSecs) {
1327
				$needs_updating = true;
1328
				$this->_forceUpdateNeeded = true;
1329
				$update_reason = "DynDns: More than " . $this->_dnsMaxCacheAgeDays . " days.  Updating. ";
1330
				$update_reason .= "{$currentTime} - {$cacheTime} > {$maxCacheAgeSecs} ";
1331
			}
1332
			if ($initial == true) {
1333
				$needs_updating = true;
1334
				$update_reason .= "Initial update. ";
1335
			}
1336

    
1337
			/*   finally if we need updating then store the
1338
			 *   new cache value and return true
1339
			 */
1340
			if ($needs_updating == true) {
1341
				if ($this->_dnsVerboseLog)
1342
					log_error("DynDns ({$this->_dnsHost}): {$update_reason}");
1343
				return true;
1344
			}
1345

    
1346
			return false;			
1347
		}
1348

    
1349
		/*
1350
		 * Private Function (added 16 July 05) [beta]
1351
		 *   - Writes debug information to a file.
1352
		 *   - This function is only called when a unknown response
1353
		 *   - status is returned from a DynDNS service provider.
1354
		 */
1355
		function _debug($data) {
1356
			global $g;
1357

    
1358
			if (!$g['debug'])
1359
				return;
1360
			$string = date('m-d-y h:i:s').' - ('.$this->_debugID.') - ['.$this->_dnsService.'] - '.$data."\n";
1361
			conf_mount_rw();
1362
			$file = fopen($this->_debugFile, 'a');
1363
			fwrite($file, $string);
1364
			fclose($file);
1365
			conf_mount_ro();
1366
		}
1367
		function _checkIP() {
1368
			global $debug;
1369

    
1370
			if ($debug)
1371
				log_error("DynDns ({$this->_dnsHost}): _checkIP() starting.");
1372

    
1373
			if ($this->_useIPv6 == true) {
1374
				$ip_address = find_interface_ipv6($this->_if);
1375
				if (!is_ipaddrv6($ip_address))
1376
					return 0;
1377
			} else {
1378
				$ip_address = find_interface_ip($this->_if);
1379
				if (!is_ipaddr($ip_address))
1380
					return 0;
1381
			}
1382
			if ($this->_useIPv6 == false && is_private_ip($ip_address)) {
1383
				$hosttocheck = "checkip.dyndns.org";
1384
				$try = 0;
1385
				while ($try < 3) {
1386
					$checkip = gethostbyname($hosttocheck);
1387
					if (is_ipaddr($checkip))
1388
						break;
1389
					$try++;
1390
				}
1391
				if ($try >= 3) {
1392
					log_error("Dyndns debug information ({$this->_dnsHost}): Could not resolve {$hosttocheck} to ip using interface ip {$ip_address}.");
1393
					return 0;
1394
				}
1395
				$ip_ch = curl_init("http://{$checkip}");
1396
				curl_setopt($ip_ch, CURLOPT_RETURNTRANSFER, 1);
1397
				curl_setopt($ip_ch, CURLOPT_SSL_VERIFYPEER, FALSE);
1398
				curl_setopt($ip_ch, CURLOPT_INTERFACE, $ip_address);
1399
				curl_setopt($ip_ch, CURLOPT_CONNECTTIMEOUT, '30');
1400
				curl_setopt($ip_ch, CURLOPT_TIMEOUT, 120);
1401
				if ($this->_useIPv6 == false) {
1402
					curl_setopt($ip_ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
1403
				}
1404
				$ip_result_page = curl_exec($ip_ch);
1405
				curl_close($ip_ch);
1406
				$ip_result_decoded = urldecode($ip_result_page);
1407
				preg_match('/Current IP Address: (.*)<\/body>/', $ip_result_decoded, $matches);
1408
				$ip_address = trim($matches[1]);
1409
				if (is_ipaddr($ip_address)) {
1410
					if ($this->_dnsVerboseLog)
1411
						log_error("DynDns ({$this->_dnsHost}): {$ip_address} extracted from {$hosttocheck}");
1412
				} else {
1413
					log_error("DynDns ({$this->_dnsHost}): IP address could not be extracted from {$hosttocheck}");
1414
					return 0;
1415
				}
1416
			} else {
1417
				if ($this->_dnsVerboseLog)
1418
					log_error("DynDns ({$this->_dnsHost}): {$ip_address} extracted from local system.");
1419
			}
1420
			$this->_dnsIP = $ip_address;
1421

    
1422
			return $ip_address;
1423
		}
1424

    
1425
	}
1426

    
1427
?>
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