497 lines
17 KiB
PHP
497 lines
17 KiB
PHP
<?php
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include "config.inc.php";
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include "alphabet.inc.php";
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$title.=' - Register';
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include "head.inc";
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$keyfile = $spooldir.'/keys.dat';
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$keys = unserialize(file_get_contents($keyfile));
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$email_registry = $spooldir.'/email_registry.dat';
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if(!file_exists($config_dir.'/phpmailer.inc.php')) {
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$CONFIG['verify_email'] = false;
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}
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if(isset($_POST['captchaimage']) && file_exists($_POST['captchaimage'])) {
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unlink($_POST['captchaimage']);
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}
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if(!isset($_POST['username'])) {
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$_POST['username'] = null;
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}
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if(!isset($_POST['key'])) {
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$_POST['key'] = null;
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}
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if(!isset($_POST['user_email'])) {
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$_POST['user_email'] = null;
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}
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$username_allowed_chars = "a-zA-Z0-9_.";
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$clean_username = preg_replace("/[^$username_allowed_chars]/", "", $_POST['username']);
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if((password_verify($keys[0],$_POST['key'])) || (password_verify($keys[1],$_POST['key']))) {
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$auth_ok = true;
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} else {
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$auth_ok = false;
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unset($_POST['command']);
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}
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if(!isset($_POST['command'])) {
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if (isset($_COOKIE["ts_limit"])) {
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echo "It appears you already have an active account<br/>";
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echo "More than one account may not be created in 30 days<br/>";
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echo '<br/><a href="/">Return to Home Page</a>';
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} else {
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$captchaImage = '../tmp/captcha'.time().'.png';
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$captchacode = prepareCaptcha($captchaImage);
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echo '<table border="0" align="center" cellpadding="0" cellspacing="1">';
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echo '<tr>';
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echo '<form name="form1" method="post" action="register.php">';
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echo '<td><tr>';
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echo '<td><strong>Register Username </strong></td>';
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echo '</tr><tr>';
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echo '<td>Username:</td>';
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echo '<td><input name="username" type="text" id="username"value="'.$_POST['username'].'"></td>';
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echo '</tr><tr>';
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echo '<td>Email:</td>';
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echo '<td><input name="user_email" type="text" id="user_email" value="'.$_POST['user_email'].'"></td>';
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echo '</tr><tr>';
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echo '<td>Password:</td>';
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echo '<td><input name="password" type="password" id="password"></td>';
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echo '</tr><tr>';
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echo '<td>Re-enter Password:</td>';
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echo '<td><input name="password2" type="password" id="password2"></td>';
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echo '</tr><tr>';
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echo '<td><img src="'.$captchaImage.'" /></td>';
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echo '<td><input name="captcha" type="text" id="captcha"></td>';
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echo '</tr><tr>';
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echo '<td><input name="captchacode" type="hidden" id="captchacode" value="'.$captchacode.'" readonly="readonly"></td>';
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echo '<td><input name="captchaimage" type="hidden" id="captchaimage" value="'.$captchaImage.'" readonly="readonly"></td>';
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echo '<td><input name="command" type="hidden" id="command" value="Create" readonly="readonly"></td>';
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echo '<td><input name="key" type="hidden" value="'.password_hash($keys[0], PASSWORD_DEFAULT).'"></td>';
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echo '</tr><tr>';
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echo '<td> </td>';
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echo '<td><input type="submit" name="Submit" value="Create"></td>';
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echo '</tr>';
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echo '<tr><td><a href="changepw.php">Change current password</a></td></tr>';
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echo '<tr><td>';
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echo '<td></td><td></td>';
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echo '</td></tr>';
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echo '</td>';
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echo '</form>';
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echo '</tr>';
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echo '</table>';
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}
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echo '</body>';
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echo '</html>';
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exit(0);
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}
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if(isset($_POST['command']) && $_POST['command'] == 'CreateNew') {
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include $config_dir.'/synchronet.conf';
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$workpath = $config_dir."users/";
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$keypath = $config_dir."userconfig/";
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$username = $_POST['username'];
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$password = $_POST['password'];
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$user_email = $_POST['user_email'];
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if(isset($_POST['code'])) {
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$code = $_POST['code'];
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} else {
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$code = false;
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}
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$userFilename = $workpath.$username;
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$keyFilename = $keypath.$username;
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@mkdir($workpath.'new/');
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$verified = 0;
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$no_verify=explode(' ', $CONFIG['no_verify']);
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foreach($no_verify as $no) {
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if (strlen($_SERVER['HTTP_HOST']) - strlen($no) === strrpos($_SERVER['HTTP_HOST'],$no)) {
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$CONFIG['verify_email'] = false;
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}
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}
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if($CONFIG['verify_email'] == true) {
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$saved_code = file_get_contents(sys_get_temp_dir()."/".$username);
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if((strcmp(trim($code), trim($saved_code))) !== 0) {
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echo "Code does not match. Try again.<br />";
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echo '<form name="create1" method="post" action="register.php">';
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echo '<input name="code" type="text" id="code"> ';
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echo '<input name="username" type="hidden" id="username" value="'.$username.'" readonly="readonly">';
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echo '<input name="password" type="hidden" id="password" value="'.$password.'" readonly="readonly">';
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echo '<input name="command" type="hidden" id="command" value="CreateNew" readonly="readonly">';
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echo '<input name="user_email" type="hidden" id="user_email" value="'.$user_email.'" readonly="readonly">';
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echo '<input type="submit" name="Submit" value="Click Here to Create"></td>';
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echo '<input name="key" type="hidden" value="'.password_hash($keys[0], PASSWORD_DEFAULT).'">';
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echo '<br/><br/><a href="'.$CONFIG['default_content'].'">Cancel and return to home page</a>';
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exit(2);
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}
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$verified = 1;
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}
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if ($userFileHandle = @fopen($userFilename, 'w+'))
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{
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fwrite($userFileHandle, password_hash($password, PASSWORD_DEFAULT));
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fclose($userFileHandle);
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chmod($userFilename, 0666);
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}
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// Create synchronet account
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if(isset($synch_create) && $synch_create == true) {
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putenv("SBBSCTRL=$synch_path/ctrl");
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$result = shell_exec("$synch_path/exec/makeuser $username -P $password");
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}
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$newkey = make_key($username);
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if ($userFileHandle = @fopen($keyFilename, 'w+'))
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{
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fwrite($userFileHandle, 'encryptionkey:'.$newkey."\r\n");
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fwrite($userFileHandle, 'email:'.$user_email."\r\n");
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if($verified == 1) {
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fwrite($userFileHandle, "email_verified:true\r\n");
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}
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fclose($userFileHandle);
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chmod($userFilename, 0666);
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}
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if(file_exists(sys_get_temp_dir()."/".$username)) {
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unlink(sys_get_temp_dir()."/".$username);
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}
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echo "User:".$username." Created\r\n";
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echo '<br /><a href="'.$CONFIG['default_content'].'">Back</a>';
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exit(0);
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}
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if($CONFIG['verify_email'] == true) {
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include($config_dir.'/phpmailer.inc.php');
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if(class_exists('PHPMailer')) {
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$mail = new PHPMailer();
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} else {
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$mail = new PHPMailer\PHPMailer\PHPMailer();
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}
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}
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# $hostname: '{POPaddress:port/pop3}INBOX'
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$hostname = '{mail.example.com:110/pop3}INBOX';
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# $external: Using external POP auth?
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$external = 0;
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# $workpath: Where to cache users (must be writable by calling program)
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$workpath = $config_dir."users/";
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$keypath = $config_dir."userconfig/";
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$ok = FALSE;
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$command = "Login";
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$username = $_POST['username'];
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$password = $_POST['password'];
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$command = $_POST['command'];
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$user_email = $_POST['user_email'];
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echo '<center>';
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$thisusername = $username;
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$username = strtolower($username);
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$userFilename = $workpath.$username;
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$keyFilename = $keypath.$username;
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# Check all input
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if (empty($_POST['username'])) {
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echo "Please enter a Username\r\n";
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echo '<form name="return1" method="post" action="register.php">';
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echo '<input name="user_email" type="hidden" id="user_email" value="'.$user_email.'" readonly="readonly">';
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echo '<input type="submit" name="Submit" value="Back"></td>';
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exit(2);
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}
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if($clean_username != $_POST['username']) {
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echo "The username entered contains disallowed characters.<br />";
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echo "Allowed characters:<br />letters, numbers, underscore, hypen, full stop<br /><br />";
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echo '<form name="return1" method="post" action="register.php">';
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echo '<input name="username" type="hidden" id="username" value="'.$clean_username.'" readonly="readonly">';
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echo '<input name="user_email" type="hidden" id="user_email" value="'.$user_email.'" readonly="readonly">';
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echo '<input type="submit" name="Submit" value="Please try again"></td>';
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exit(2);
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}
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if(filter_var($user_email, FILTER_VALIDATE_EMAIL) == false) {
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echo "Email address format appears incorrect\n";
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echo '<form name="return1" method="post" action="register.php">';
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echo '<input name="username" type="hidden" id="username" value="'.$username.'" readonly="readonly">';
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echo '<input type="submit" name="Submit" value="Back"></td>';
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exit(2);
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}
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if($CONFIG['verify_email']) {
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$user_domain = explode('@', $user_email);
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if((checkdnsrr($user_domain[1].'.', "MX") == false) && (checkdnsrr($user_domain[1].'.', "A") == false)) {
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echo "Email domain appears to not exist\n";
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echo '<form name="return1" method="post" action="register.php">';
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echo '<input name="username" type="hidden" id="username" value="'.$username.'" readonly="readonly">';
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echo '<input type="submit" name="Submit" value="Back"></td>';
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exit(2);
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}
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}
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if (($_POST['password'] !== $_POST['password2']) || $_POST['password'] == '') {
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echo "Your passwords entered do not match\r\n";
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echo '<form name="return1" method="post" action="register.php">';
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echo '<input name="username" type="hidden" id="username" value="'.$username.'" readonly="readonly">';
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echo '<input name="user_email" type="hidden" id="user_email" value="'.$user_email.'" readonly="readonly">';
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echo '<input type="submit" name="Submit" value="Back"></td>';
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exit(2);
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}
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if (getExpressionResult($_POST['captchacode']) != $_POST['captcha']) {
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echo "Incorrect captcha response\r\n";
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echo '<form name="return1" method="post" action="register.php">';
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echo '<input name="username" type="hidden" id="username" value="'.$username.'" readonly="readonly">';
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echo '<input name="user_email" type="hidden" id="user_email" value="'.$user_email.'" readonly="readonly">';
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echo '<input type="submit" name="Submit" value="Back"></td>';
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exit(2);
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}
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/* Check for existing email address */
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$users = scandir($config_dir."/userconfig");
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foreach($users as $user) {
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if(!is_file($config_dir."/userconfig/".$user)) {
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continue;
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}
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if(strcmp(get_user_config($user, 'mail'), $user_email) == 0) {
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echo "Email exists in database\r\n";
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echo '<form name="return1" method="post" action="register.php">';
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echo '<input name="username" type="hidden" id="username" value="'.$username.'" readonly="readonly">';
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echo '<input type="submit" name="Submit" value="Back"></td>';
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exit(2);
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}
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}
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# Check email address attempts to avoid abuse
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if(file_exists($email_registry)) {
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$tried_email = unserialize(file_get_contents($email_registry));
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if(isset($tried_email[$user_email])) {
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echo "Email address already used\r\n";
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echo '<form name="return1" method="post" action="register.php">';
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echo '<input name="username" type="hidden" id="username" value="'.$username.'" readonly="readonly">';
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echo '<input type="submit" name="Submit" value="Back"></td>';
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exit(2);
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}
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}
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if (!preg_match("^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z0-9]{2,3})$^",$user_email)) {
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echo "Email must be in the form of an email address\r\n";
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echo '<br /><a href="register.php">Back</a>';
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exit(2);
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}
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# Does user file already exist?
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if (($userFileHandle = @fopen($userFilename, 'r')) || (get_config_value('aliases.conf', strtolower($thisusername)) !== false))
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{
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if ($command == "Create")
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{
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echo "User:".$thisusername." Already Exists\r\n";
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echo '<br /><a href="register.php">Back</a>';
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exit(2);
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}
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$userFileInfo = fread($userFileHandle, filesize($userFilename));
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fclose($userFileHandle);
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# User/Pass is correct
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if (password_verify ( $password , $userFileInfo))
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{
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touch($userFilename);
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$ok = TRUE;
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} else {
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$ok = FALSE;
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}
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} else {
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$ok = FALSE;
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}
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# Ok to log in. User authenticated.
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if ($ok)
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{
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echo "User:".$thisusername."\r\n";
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exit(0);
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}
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# Using external authentication
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if ($external)
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{
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$mbox = @imap_open ( $hostname , $username , $password );
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if ($mbox)
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{
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$ok = TRUE;
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imap_close($mbox);
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}
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}
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# User is authenticated or to be created. Either way, create the file
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if ($ok || ($command == "Create") )
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{
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echo 'Create account: '.$_POST['username'].'<br/><br />';
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/* Generate email */
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$no_verify=explode(' ', $CONFIG['no_verify']);
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foreach($no_verify as $no) {
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if (strlen($_SERVER['HTTP_HOST']) - strlen($no) === strrpos($_SERVER['HTTP_HOST'],$no)) {
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$CONFIG['verify_email'] = false;
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}
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}
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if($CONFIG['verify_email']) {
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# Log email address attempts to avoid abuse
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if(file_exists($email_registry)) {
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$tried_email = unserialize(file_get_contents($email_registry));
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}
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$tried_email[$user_email]['time'] = time();
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file_put_contents($email_registry, serialize($tried_email));
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$mail->SMTPOptions = array(
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'ssl' => array(
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'verify_peer' => false,
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'verify_peer_name' => false,
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'allow_self_signed' => true
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)
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);
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$mail->IsSMTP();
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$mail->CharSet = 'UTF-8';
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$mail->Host = $mailer['host'];
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$mail->SMTPAuth = true;
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$mail->Port = $mailer['port'];
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$mail->Username = $mailer['username'];
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$mail->Password = $mailer['password'];;
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$mail->SMTPSecure = 'tls';
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$mail->setFrom($mail_user.'@'.$mail_domain, $mail_name);
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$mail->addAddress($user_email);
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$mail->Subject = "Confirmation code for ".$_SERVER['HTTP_HOST'];
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foreach($mail_custom_header as $key => $value) {
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$mail->addCustomHeader($key, $value);
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}
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$mycode = create_code($username);
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$msg="A request to create an account on ".$_SERVER['HTTP_HOST'];
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$msg.=" has been made using ".$user_email.".\n\n";
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$msg.="If you did not request this, please ignore and the request will fail.\n\n";
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$msg.="This is your account creation code: ".$mycode."\n\n";
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$msg.="Note: replies to this email address are checked daily.";
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$mail->Body = wordwrap($msg,70);
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$mail->send();
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echo 'An email has been sent to '.$user_email.'<br />';
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echo 'Please enter the code from the email below:<br />';
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}
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echo '<form name="create1" method="post" action="register.php">';
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if($CONFIG['verify_email'] == true) {
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echo '<input name="code" type="text" id="code"> ';
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}
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echo '<input name="username" type="hidden" id="username" value="'.$username.'" readonly="readonly">';
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echo '<input name="password" type="hidden" id="password" value="'.$password.'" readonly="readonly">';
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echo '<input name="command" type="hidden" id="command" value="CreateNew" readonly="readonly">';
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echo '<input name="user_email" type="hidden" id="user_email" value="'.$user_email.'" readonly="readonly">';
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echo '<input name="key" type="hidden" value="'.password_hash($keys[0], PASSWORD_DEFAULT).'">';
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echo '<input type="submit" name="Submit" value="Click Here to Create"></td>';
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echo '<br/><br/><a href="'.$CONFIG['default_content'].'">Cancel and return to home page</a>';
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} else {
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echo "Authentication Failed\r\n";
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exit(1);
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}
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function get_user_config($username,$request) {
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global $config_dir;
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$userconfigpath = $config_dir."userconfig/";
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$username = strtolower($username);
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$userFilename = $userconfigpath.$username;
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if ($userFileHandle = @fopen($userFilename, 'r'))
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{
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while (!feof($userFileHandle))
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{
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$buffer = fgets($userFileHandle);
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if(strpos($buffer, $request.':') !== FALSE) {
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$userdataline=$buffer;
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fclose($userFileHandle);
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$userdatafound = explode(':',$userdataline);
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return trim($userdatafound[1]);
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}
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}
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fclose($userFileHandle);
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return FALSE;
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} else {
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return FALSE;
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}
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}
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function make_key($username) {
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$key = openssl_random_pseudo_bytes(44);
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return base64_encode($key);
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}
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function create_code($username) {
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$permitted_chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
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$code = substr(str_shuffle($permitted_chars), 0, 16);
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$userfile = sys_get_temp_dir()."/".$username;
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file_put_contents($userfile, $code);
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return $code;
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}
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function get_config_value($configfile,$request) {
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global $config_dir;
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if ($configFileHandle = @fopen($config_dir.'/'.$configfile, 'r'))
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{
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while (!feof($configFileHandle))
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{
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$buffer = fgets($configFileHandle);
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if(strpos($buffer, $request.':') !== FALSE) {
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$dataline=$buffer;
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fclose($configFileHandle);
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$datafound = explode(':',$dataline);
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return $datafound[1];
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}
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}
|
|
fclose($configFileHandle);
|
|
return FALSE;
|
|
} else {
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
function generateImage($text, $file) {
|
|
$im = @imagecreate(74, 25) or die("Cannot Initialize new GD image stream");
|
|
$background_color = imagecolorallocate($im, 200, 200, 200);
|
|
$text_color = imagecolorallocate($im, 0, 0, 0);
|
|
imagestring($im, 5, 5, 5, $text, $text_color);
|
|
imagepng($im, $file);
|
|
imagedestroy($im);
|
|
}
|
|
|
|
function getIndex($alphabet, $letter) {
|
|
for($i=0; $i<count($alphabet); $i++) {
|
|
$l = $alphabet[$i];
|
|
if($l === $letter) return $i;
|
|
}
|
|
}
|
|
function getExpressionResult($code) {
|
|
global $alphabet, $alphabetsForNumbers;
|
|
$userAlphabetIndex = getIndex($alphabet, substr($code, 0, 1));
|
|
$number1 = (int) getIndex($alphabetsForNumbers[$userAlphabetIndex], substr($code, 1, 1));
|
|
$number2 = (int) getIndex($alphabetsForNumbers[$userAlphabetIndex], substr($code, 2, 1));
|
|
return $number1 + $number2;
|
|
}
|
|
|
|
function prepareCaptcha($captchaImage) {
|
|
global $alphabet, $alphabetsForNumbers;
|
|
// generating expression
|
|
$expression = (object) array(
|
|
"n1" => rand(0, 9),
|
|
"n2" => rand(0, 9)
|
|
);
|
|
generateImage($expression->n1.' + '.$expression->n2.' =', $captchaImage);
|
|
|
|
$usedAlphabet = rand(0, 9);
|
|
$code = $alphabet[$usedAlphabet].
|
|
$alphabetsForNumbers[$usedAlphabet][$expression->n1].
|
|
$alphabetsForNumbers[$usedAlphabet][$expression->n2];
|
|
return($code);
|
|
}
|
|
?>
|