diff options
Diffstat (limited to 'dns.php')
| -rw-r--r-- | dns.php | 90 |
1 files changed, 76 insertions, 14 deletions
@@ -3,23 +3,85 @@ ini_set("display_errors", 1); ini_set("display_startup_errors", 1); error_reporting(E_ALL); -if ($_POST['domain']) { - echo "domain posted\n"; +function sshrun($command) { + $host = "misc.tghost.co.uk"; + $user = "bladns.net"; + $keypub = "/home/bladns.net/.ssh/id_rsa.pub"; + $keypriv = "/home/bladns.net/.ssh/id_rsa"; - $connection = ssh2_connect("misc.tghost.co.uk", 22, array("hostkey" => "ssh-rsa")); + $connection = ssh2_connect($host, 22, array("hostkey" => "ssh-rsa")); - if (ssh2_auth_pubkey_file($connection, "bladns.net", "/home/bladns.net/.ssh/id_rsa.pub", "/home/bladns.net/.ssh/id_rsa")) { - echo "Public Key Authentication Successful\n<br>\n<br>"; - } else { - echo "Public Key Authentication Failed\n<br>\n<br>"; - } + ssh2_auth_pubkey_file($connection, $user, $keypub, $keypriv); - echo "<pre>"; - $stream = ssh2_exec($connection, "ps aux | grep named"); + $stream = ssh2_exec($connection, $command); stream_set_blocking($stream, true); $stream_out = ssh2_fetch_stream($stream, SSH2_STREAM_STDIO); - echo stream_get_contents($stream_out); - echo "</pre>"; + return stream_get_contents($stream_out); +} + +function getzone($domain, $password) { + $zoneroot = "/var/bind/pri/"; + $zonesuffix = ".zone"; + + if (!preg_match('/^[0-9A-Za-z\.\-]*$/', $_POST['domain'])) { + die("invalid domain"); + } + + $string = sshrun("cat " . $zoneroot . $domain . $zonesuffix); + + $zonelines = explode("\n", $string); + $zonehash = explode(" ", $zonelines[0]); + + if ($zonehash[sizeof($zonehash) - 1] == $password) { + return $string; + } else { + return; + } +} + +function writezone($domain, $password, $zonetext) { + $zoneroot = "/var/bind/pri/"; + $zonesuffix = ".zone"; + + if (!preg_match('/^[0-9A-Za-z\.\-]*$/', $_POST['domain'])) { + die("invalid domain"); + } + + if (!getzone($domain, $password)) { + die("somehow the password went bad"); + } + + $zonetext = str_replace('$', '\$', $zonetext); + + sshrun("echo -e \"$zonetext\" > $zoneroot$domain$zonesuffix"); + sshrun("rndc reload $domain"); +} + +// Main entry point + +if (isset($_POST['domain']) && isset($_POST['password']) && !isset($_POST['zonetext'])) { + if (!preg_match('/^[0-9A-Za-z\.\-]*$/', $_POST['domain'])) { + die("invalid domain"); + } + + $password = hash("sha256", $_POST['password']); + + if ($zonefile = getzone($_POST['domain'], $password)) { +?> + <form action="dns.php" method="post"> + <textarea rows="24" cols="80" name="zonetext" autofocus><?php echo $zonefile; ?></textarea><br> + <input type="hidden" name="domain" value="<?php echo $_POST['domain']; ?>"> + <input type="hidden" name="password" value="<?php echo $password; ?>"> + <input type="submit" value="Update zonefile"><br> + </form> +<?php + } else { + die("sorry, the domain or password is wrong :("); + } +} else if (isset($_POST['domain']) && isset($_POST['password']) && isset($_POST['zonetext'])) { + $zonetext = str_replace("\r", '', $_POST['zonetext']); + writezone($_POST['domain'], $_POST['password'], $zonetext); + echo "all done :)"; } else { ?> <!DOCTYPE html> @@ -30,9 +92,9 @@ if ($_POST['domain']) { </head> <body> <form name="login" action="dns.php" method="post"> - Domain name: <input type="text" name="domain"><br> + Domain name: <input type="text" name="domain" autofocus><br> Password: <input type="password" name="password"><br> - <input type="submit"> + <input type="submit" value="Login"> </form> </body> </html> |