Last active
January 27, 2024 00:57
-
-
Save superbob/c8d44537c08ba1f7f22e9ea757e31595 to your computer and use it in GitHub Desktop.
Namecheap Synology DSM DDNS provider
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#Insert this at the end of /etc.defaults/ddns_provider.conf | |
[Namecheap] | |
modulepath=/usr/syno/bin/ddns/namecheap.php | |
queryurl=https://dynamicdns.park-your-domain.com/update |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#!/usr/bin/php -d open_basedir=/usr/syno/bin/ddns | |
<?php | |
if ($argc !== 5) { | |
echo 'badparam'; | |
exit(); | |
} | |
$account = $argv[1]; | |
$pwd = (string)$argv[2]; | |
$hostname = (string)$argv[3]; | |
$ip = (string)$argv[4]; | |
// check the hostname contains '.' | |
if (strpos($hostname, '.') === false) { | |
echo 'badparam'; | |
exit(); | |
} | |
// only for IPv4 format | |
if (!filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) { | |
echo "badparam"; | |
exit(); | |
} | |
$url = 'https://dynamicdns.park-your-domain.com/update?host='.$account.'&domain='.$hostname.'&password='.$pwd.'&ip='.$ip; | |
$req = curl_init(); | |
curl_setopt($req, CURLOPT_URL, $url); | |
curl_setopt($req, CURLOPT_RETURNTRANSFER, true); | |
$badXmlString = curl_exec($req); // XML String returned has a wrong xml utf declaration | |
curl_close($req); | |
// Heading says content is UTF-16, but it is UTF-8, so it is manually changed here | |
$fixedXmlString = preg_replace('/(<\?xml[^?]+?)utf-16/i', '$1utf-8', $badXmlString); | |
$xml = new SimpleXMLElement($fixedXmlString); | |
if ($xml->ErrCount > 0) { | |
$error = $xml->errors[0]->Err1; | |
if (strcmp($error, "Domain name not found") === 0) { | |
echo "nohost"; | |
} elseif (strcmp($error, "Passwords do not match") === 0) { | |
echo "badauth"; | |
} elseif (strcmp($error, "No Records updated. A record not Found;") === 0) { | |
echo "nohost"; | |
} else { | |
echo "911 [".$error."]"; | |
} | |
} else { | |
echo "good"; | |
} |
The script at the top of this gist (which now contains the modifications from @bloedboemmel) is working for me.
Couple of things that I found helpful:
- Reading the official Namecheap documentation about performing the HTTP GET call to the URL: https://www.namecheap.com/support/knowledgebase/article.aspx/29/11/how-to-dynamically-update-the-hosts-ip-with-an-http-request/
- The detailed instructions from @Dade-R which show the crucial step of adding the executable permission to the PHP file.
Great stuff, and thanks to all involved!
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
@aalejaandro Have you tried to change your url back to the original, because yours seems odd to me. Have you tried to paste the original url and your modified url in the browser? Maybe it shows another error.
My fix you mentioned shouldn't affect your issue, it fixed all our errors, when namecheap changed their return format. This time it strangely affects only one person.
My Synology hasn't updated yet, but I suggest to run the php file with a debugger and your input, so you can find any error.