192 lines
5.5 KiB
PHP
192 lines
5.5 KiB
PHP
<?php
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//
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// Copyright (c) 2016 Mr. Gecko's Media (James Coleman). http://mrgeckosmedia.com/
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//
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// Permission to use, copy, modify, and/or distribute this software for any purpose
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// with or without fee is hereby granted, provided that the above copyright notice
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// and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
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// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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// FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT,
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// OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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// DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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// ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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//
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error_reporting(E_ALL & ~E_NOTICE & ~E_WARNING & ~E_STRICT);
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function error($error) {
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echo $error;
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exit();
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}
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$_MGM = array();
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$_MGM['version'] = "1";
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$_MGM['title'] = "GeckoDNS";
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$_MGM['author'] = "Mr. Gecko";
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$_MGM['DBType'] = "SQLITE"; // MYSQL, POSTGRESQL, SQLITE.
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$_MGM['DBPersistent'] = false;
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$_MGM['DBHost'] = "localhost";
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$_MGM['DBUser'] = "";
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$_MGM['DBPassword'] = "";
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$_MGM['DBName'] = "databases/main.db"; // File location for SQLite.
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$_MGM['DBPort'] = 0; // 3306 = MySQL Default, 5432 = PostgreSQL Default.
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$_MGM['DBPrefix'] = "";
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$_MGM['adminEmail'] = "default@domain.com";
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require_once("db{$_MGM['DBType']}.php");
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putenv("TZ=US/Central");
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$_MGM['time'] = time();
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if (isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR']!="")
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$_MGM['ip'] = $_SERVER['REMOTE_ADDR'];
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/*if (isset($_SERVER['HTTP_PC_REMOTE_ADDR']) && $_SERVER['HTTP_PC_REMOTE_ADDR']!="")
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$_MGM['ip'] = $_SERVER['HTTP_PC_REMOTE_ADDR'];
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if (isset($_SERVER['HTTP_CLIENT_IP']) && $_SERVER['HTTP_CLIENT_IP']!="")
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$_MGM['ip'] = $_SERVER['HTTP_CLIENT_IP'];
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if (isset($_SERVER['HTTP_X_FORWARDED_FOR']) && $_SERVER['HTTP_X_FORWARDED_FOR']!="")
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$_MGM['ip'] = $_SERVER['HTTP_X_FORWARDED_FOR'];*/
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$_MGM['nsupdatePath'] = "/usr/local/bin/nsupdate";
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$_MGM['defaultTTL'] = 1800;
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$_MGM['debug'] = false;
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function hashPassword($password, $salt) {
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return hash_pbkdf2("sha512", $password, $salt, 1000);
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}
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if (isset($_REQUEST['passwd'])) {
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if (isset($_REQUEST['password'])) {
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$salt = mcrypt_create_iv(16, MCRYPT_DEV_URANDOM);
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$password = hashPassword($_REQUEST['password'], $salt);
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echo bin2hex($salt).$password;
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exit();
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}
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?>
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<html>
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<head>
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<title>Generate password for storage in <?=$_MGM['title']?> database.</title>
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</head>
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<body>
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<form action="?passwd" method="post">
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<input type="text" name="password" placeholder="Password" autocomplete="off" />
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<input type="submit" value="Generate Password" />
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</form>
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</body>
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<?
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exit();
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}
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connectToDatabase();
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if (isset($_REQUEST['username']) && isset($_REQUEST['password'])) {
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$result = databaseQuery("SELECT * FROM users WHERE username=%s AND level!=0", $_REQUEST['username']);
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$user = databaseFetchAssoc($result);
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if ($user!=NULL) {
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$salt = hex2bin(substr($user['password'], 0, 32));
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$password = substr($user['password'], 32);
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if ($password==hashPassword($_REQUEST['password'], $salt)) {
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$_MGM['user'] = $user;
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}
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}
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}
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header("Content-Type: text/plain");
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if (!isset($_MGM['user'])) {
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echo "Invalid Credentials";
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closeDatabase();
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exit();
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}
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databaseQuery("UPDATE users SET lastmessage=%s WHERE username=%s", $_MGM['time'], $_MGM['user']['username']);
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$dblast = "";
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$nsrecord = "";
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if (filter_var($_MGM['ip'], FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) {
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$dblast = "lastv4";
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$nsrecord = "A";
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} else if (filter_var($_MGM['ip'], FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) {
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$dblast = "lastv6";
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$nsrecord = "AAAA";
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}
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if ($dblast=="") {
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echo "Invalid IP Address Detected";
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closeDatabase();
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exit();
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}
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if ($_MGM['user'][$dblast]!=$_MGM['ip']) {
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echo "New IP: ".$_MGM['ip']."\n\n";
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$updateFile = tempnam(sys_get_temp_dir(), 'GeckoDNS');
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$fh = fopen($updateFile, 'w');
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fwrite($fh, "server ".$_MGM['user']['server']."\n");
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fwrite($fh, "debug yes\n");
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fwrite($fh, "zone ".$_MGM['user']['zone']."\n");
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$hosts = explode(",", $_MGM['user']['hosts']);
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foreach ($hosts as $host) {
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$suffix = substr($host, strlen($host)-strlen($_MGM['user']['zone']));
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if ($suffix!=$_MGM['user']['zone'] && !preg_match('/^[a-zA-Z0-9.-*]+$/', $host)) {
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echo "Host: ".$host."\n\n";
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echo "Invalid Configuration";
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fclose($fh);
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unlink($updateFile);
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closeDatabase();
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exit();
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}
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fwrite($fh, "update delete ".$host." ".$nsrecord."\n");
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fwrite($fh, "update add ".$host." ".$_MGM['defaultTTL']." ".$nsrecord." ".$_MGM['ip']."\n");
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}
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fwrite($fh, "show\n");
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fwrite($fh, "send\n");
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fclose($fh);
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$command = $_MGM['nsupdatePath']." -k ".escapeshellarg("keys/".$_MGM['user']['key'])." ".$updateFile;
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$result = exec($command." 2>&1", $output);
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if ($_MGM['debug']) {
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echo "Output: \n";
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}
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$foundReply = false;
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$status = 0;
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foreach ($output as $line) {
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if ($_MGM['debug']) {
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echo $line."\n";
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}
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if ($foundReply && $status==0) {
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if (strpos($line, "status: NOERROR")!==false) {
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$status = 1;
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} else {
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$status = 2;
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}
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}
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if (strpos($line, "Reply from update query:")!==false) {
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$foundReply = true;
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}
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}
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if ($status==1) {
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echo "\nUpdate Successful";
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databaseQuery("UPDATE users SET lastupdate=%s, $dblast=%s WHERE username=%s", $_MGM['time'], $_MGM['ip'], $_MGM['user']['username']);
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} else {
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if ($_MGM['debug']) {
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echo "\nCommand: ".$command."\n";
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echo "\nUpdate File:\n";
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readfile($updateFile);
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}
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echo "\nUpdate Unsuccessful";
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}
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unlink($updateFile);
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} else {
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echo "No Update";
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}
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closeDatabase();
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?>
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