<?php
//****************************//
// //
// SimpleForm Generator //
// Slavomir Mikolaj //
// 05.03.2011 //
// library recaptcha included //
// //
//****************************//
class Form
{
public $template;
public $c = '';
public $data = array();
public $elements = array();
public $rules = array();
public $frmid = NULL;
public $sender = NULL;
public $html_tags = array();
public $js_valid = TRUE;
public $return_output = TRUE;
public $error_array = array();
public $msgs = array('New words');
function Form($id = NULL)
{
if($id != NULL)
{
$this->frmid = $id;
}
}
public function HTML($name, $tag)
{
$this->html_tags[$name] = $tag;
}
public function ReturnOutput($bol)
{
if($bol == FALSE)
{
$this->return_output = false;
}
}
public function SetMsgs($msgs)
{
$this->msgs = array();
foreach(explode(',', $msgs) as $msg)
{
array_push($this->msgs, $msg);
}
}
public function AddElement($element = 'input', $name, $prefix, $default_value = '', $data = array())
{
if($element == 'input') {
array_push($this->data, array('input', $name, $prefix, $default_value));
}elseif($element == 'submit') {
array_push($this->data, array('submit', $name, $default_value));
$this->sender = $name;
}elseif($element == 'select') {
array_push($this->data, array('select', $name, $prefix, $default_value, $data));
}elseif($element == 'password') {
array_push($this->data, array('password', $name, $prefix, $default_value));
}elseif($element == 'checkbox') {
array_push($this->data, array('checkbox', $name, $prefix, $default_value, $data));
}elseif($element == 'radio') {
array_push($this->data, array('radio', $name, $prefix, $default_value, $data));
}elseif($element == 'captcha') {
array_push($this->data, array('captcha', $name, $prefix, $default_value, $data));
$this->rules[$name.':CAPTCHA'] = array('safasfasfasfasf', NULL);
}
}
public function AssignTemplate($template_file)
{
$this->template = $template_file;
}
public function GenerateForm()
{
//Generator for Form ID
function random_gen($length)
{
$random= "";
srand((double)microtime()*1000000);
$char_list = "abcdefghijklmnopqrstuvwxyz";
for($i = 0; $i < $length; $i++)
{
$random .= substr($char_list, (rand()%(strlen($char_list))), 1);
}
return $random;
}
if($this->frmid == NULL){
$this->frmid = random_gen(8);
}
foreach($this->data as $element) {
//set html tags
$html = '';
foreach($this->html_tags as $name=>$html_tag)
{
if($element['1'] == $name)
{
$html .= ' '.$html_tag;
}
}
if($element[0] == 'input') {
$this->elements[$element['1']] = '<input type="text" id="lab_'.$element['1'].'" name="'.$element[1].'" value="'.$element[3].'" '.$html.'/>';
$this->elements['label:'.$element['1']] = '<label for="lab_'.$element['1'].'">'.$element['2'].'</label>';
}elseif($element[0] == 'submit') {
$this->elements[$element['1']] = '<p><input type="submit" name="'.$element[1].'" value="'.$element[2].'" '.$html.'/></p>';
}elseif($element [0] == 'select') {
$this->c .= '<select name="'.$element[1].'" id="lab_'.$element[1].'" '.$html.'>';
foreach($element[4] as $pref=>$val) {
if(is_array($val))
{
$this->c .= '<optgroup label="'.$pref.'">';
foreach($val as $pref=>$val)
{
$this->c .= '<option value="'.$val.'">'.$pref.'</option>';
}
$this->c .= '</optgroup>';
}else
{
if($val == $element[3]) {
$this->c .= '<option value="'.$val.'" selected="yes">'.$pref.'</option>';
}else {
$this->c .= '<option value="'.$val.'">'.$pref.'</option>';
}
}
}
$this->c .= '</select>';
$this->elements['label:'.$element['1']] = '<label for="lab_'.$element['1'].'">'.$element[2].'</label>';
$this->elements[$element['1']] = $this->c;
$this->c = '';
}elseif($element[0] == 'password') {
$this->elements[$element['1']] = '<input type="password" id="lab_'.$element[1].'" name="'.$element[1].'" value="'.$element[3].'" '.$html.'/>';
$this->elements['label:'.$element['1']] = '<label for="lab_'.$element['1'].'">'.$element['2'].'</label>';
}elseif($element[0] == 'checkbox') {
foreach($element[4] as $pref=>$val) {
if($element[3] == TRUE)
{
$this->c .= '<input type="checkbox" name="'.$element[1].'" id="lab_'.$element[1].'" value="'.$val.'" '.$html.' CHECKED> '.$pref;
}else
{
$this->c .= '<input type="checkbox" name="'.$element[1].'" id="lab_'.$element[1].'" value="'.$val.'" '.$html.'/> '.$pref;
}
}
$this->elements[$element['1']] = $this->c;
$this->elements['label:'.$element[1]] = '<label for="lab_'.$element[1].'">'.$element['2'].'</label>';
$this->c = '';
}elseif($element[0] == 'radio') {
foreach($element[4] as $pref=>$val) {
if($element[3] == $val)
{
$this->c .= '<input type="radio" name="'.$element[1].'" value="'.$val.'" '.$html.' checked> '.$pref;
}else
{
$this->c .= '<input type="radio" name="'.$element[1].'" value="'.$val.'" '.$html.'> '.$pref;
}
}
$this->elements[$element['1']] = $this->c;
$this->elements['label:'.$element[1]] = '<label for="lab_'.$element[1].'">'.$element[2].'</label>';
$this->c = '';
}elseif($element[0] == 'captcha') {
$this->elements[$element['1']] = '
<script type="text/javascript">
var RecaptchaOptions = {
theme : \'custom\'
};
</script>
<div id="recaptcha_container">
<div id="recaptcha_image"></div>
<input type="text" id="recaptcha_response_field" name="recaptcha_response_field" '.$html.'/>
<input type="button" id="recaptcha_reload_btn" value="'.$this->msgs[0].'" onclick="Recaptcha.reload();" />
</div>
<script type="text/javascript" src="http://api.recaptcha.net/challenge?k=6LdvZMISAAAAAHZ9EqPIdDIBDfdPPCynxJo6jM7a">
</script>
<noscript>
<iframe src="http://api.recaptcha.net/noscript?k=6LdvZMISAAAAAHZ9EqPIdDIBDfdPPCynxJo6jM7a"> height="300" width="500" frameborder="0"></iframe>
<textarea name="recaptcha_challenge_field" rows="3" cols="40"></textarea>
<input type="hidden" name="recaptcha_response_field" value="manual_challenge" />
</noscript>
';
$this->elements['label:'.$element['1']] = '<label for="lab_'.$element['1'].'">'.$element['2'].'</label>';
}
}
//RULES
$content = '<script type="text/javascript">
function ReportError(error) {
window.alert(error);
}
function ValidForm() {';
//GENERATE JS CODE
foreach($this->rules as $rule=>$sett) {
$exp = explode(':', $rule);
$prvok = $exp[0];
$type = $exp[1];
$mess = str_replace(array('{N}'), array($sett[0]), $sett[1]);
if($type == 'MINSIZE') {
$content.='
if(document.'.$this->frmid.'.lab_'.$prvok.'.value.length < '.$sett[0].') {
ReportError("'.$mess.'");
return false;
}
';
}elseif($type == 'MAXSIZE') {
$content.='
if(document.'.$this->frmid.'.lab_'.$prvok.'.value.length > '.$sett[0].') {
ReportError("'.$mess.'");
return false;
}
';
}elseif($type == 'EMAIL') {
$content .= '
var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
if(reg.test(document.'.$this->frmid.'.lab_'.$prvok.'.value) == false) {
ReportError("'.$sett[0].'");
return false;
}
';
}elseif($type == 'EQUAL') {
$content .= '
if((document.'.$this->frmid.'.lab_'.$prvok.'.value.length) == 0 || !(document.'.$this->frmid.'.lab_'.$prvok.'.value == document.'.$this->frmid.'.lab_'.$sett[1].'.value)) {
ReportError("'.$sett[0].'");
return false;
}
';
}elseif($type == 'MUSTBE') {
$content .= '
if(!document.'.$this->frmid.'.lab_'.$prvok.'.checked) {
ReportError("'.$sett[0].'");
return false;
}
';
}elseif($type === 'REGEXP') {
$content .= '
if(!(document.'.$this->frmid.'.lab_'.$prvok.'.value.match('.$sett[1].'))) {
ReportError("'.$sett[0].'");
return false;
}';
}
}
$content .= '}
</script>
';
if($this->js_valid != TRUE)
{
$content = '';
}
//GENERATE TEMPLATE AND PARSE IT
$content .= '<form method="post" action="" name="'.$this->frmid.'" onsubmit="return ValidForm();">';
if(file_exists($this->template)) {
$content .= file_get_contents($this->template);
if(count($this->elements)>0) {
foreach($this->elements as $tag=>$data){
$content = str_replace('{'.$tag.'}',$data,$content);
}
}
$content .= '</form>';
} else {
GenError('ablóna '.$this->template.' nenájdená');
exit();
}
if($this->return_output == TRUE){
return $content;
}else{
echo $content;
}
}
public function Rule($element, $type, $addit = array())
{
$addit = explode("|", $addit);
if($type == 'MINSIZE') {
$this->rules[$element.':MINSIZE'] = array($addit[1], $addit[0]);
}elseif($type == 'MAXSIZE') {
$this->rules[$element.':MAXSIZE'] = array($addit[1], $addit[0]);
}elseif($type == 'EMAIL') {
$this->rules[$element.':EMAIL'] = array($addit[0], NULL);
}elseif($type == 'EQUAL') {
$this->rules[$element.':EQUAL'] = array($addit[0], $addit[1]);
}elseif($type == 'MUSTBE') {
$this->rules[$element.':MUSTBE'] = array($addit[0], NULL);
}elseif($type == 'REGEXP') {
$this->rules[$element.':REGEXP'] = array($addit[0], $addit[1]);
}
}
//IF submit...
public function IsSubmit()
{
if($this->sender != NULL && isset($_POST[$this->sender])){
return true;
}else
{
return false;
}
}
//Validate
public function Valid(){
if($this->sender != NULL && isset($_POST[$this->sender])){
//SERVER SIDE VALIDATION
$errors = array();
foreach($this->rules as $rule=>$sett) {
$exp = explode(':', $rule);
$prvok = $exp[0];
$type = $exp[1];
$mess = str_replace(array('{N}'), array($sett[0]), $sett[1]);
if(isset($_POST[$prvok]) && $type != 'CAPTCHA')
{
$post_thru = htmlspecialchars(stripslashes($_POST[$prvok]));
}
if($type == 'MINSIZE')
{
if(strlen($post_thru) < $sett[0]) {array_push($this->error_array, $mess);}
}elseif($type == 'MAXSIZE')
{
if(strlen($post_thru) > $sett[0]) {array_push($this->error_array, $mess);}
}elseif($type == 'EMAIL')
{
if (!preg_match('/^[^0-9][a-zA-Z0-9_]+([.][a-zA-Z0-9_]+)*[@][a-zA-Z0-9_]+([.][a-zA-Z0-9_]+)*[.][a-zA-Z]{2,4}$/', $post_thru)) {array_push($this->error_array, $sett[0]);}
}elseif($type == 'EQUAL')
{
if($post_thru != htmlspecialchars(stripslashes($_POST[$sett[1]])) || $post_thru == '') {array_push($this->error_array, $sett[0]);}
}elseif($type == 'MUSTBE')
{
if(!isset($_POST[$prvok])) {array_push($this->error_array, $sett[0]);}
}elseif($type == 'CAPTCHA')
{
$publickey = "6LdvZMISAAAAAHZ9EqPIdDIBDfdPPCynxJo6jM7a";
$privatekey = "6LdvZMISAAAAAFDEa70XNO-dJO69FK2qTbC3iixq";
$resp = null;
$error = null;
if (isset($_POST["recaptcha_response_field"])) {
$resp = recaptcha_check_answer ($privatekey, $_SERVER["REMOTE_ADDR"], $_POST["recaptcha_challenge_field"], $_POST["recaptcha_response_field"]);
if ($resp->is_valid) {} else {array_push($this->error_array, $sett[0]);}
}
}elseif($type == "REGEXP")
{
if(!preg_match($sett[1], $prvok)) {array_push($this->error_array, $sett[0]);}
}
}
if(count($this->error_array) > 0)
{
$c = '';
$c .= '<ul>';
foreach($this->error_array as $fail)
{
$c .= '<li>'.$fail.'</li>';
}
$c .= '</ul>';
$this->error_block = $c;
}
if(count($this->error_array)>0)
{
return false;
}else
{
return true;
}
}
}
}
//reCaptcha common library
define("RECAPTCHA_API_SERVER", "http://www.google.com/recaptcha/api");
define("RECAPTCHA_API_SECURE_SERVER", "https://www.google.com/recaptcha/api");
define("RECAPTCHA_VERIFY_SERVER", "www.google.com");
function _recaptcha_qsencode ($data)
{
$req = "";
foreach ( $data as $key => $value )
$req .= $key . '=' . urlencode( stripslashes($value) ) . '&';
// Cut the last '&'
$req=substr($req,0,strlen($req)-1);
return $req;
}
function _recaptcha_http_post($host, $path, $data, $port = 80)
{
$req = _recaptcha_qsencode ($data);
$http_request = "POST $path HTTP/1.0\r\n";
$http_request .= "Host: $host\r\n";
$http_request .= "Content-Type: application/x-www-form-urlencoded;\r\n";
$http_request .= "Content-Length: " . strlen($req) . "\r\n";
$http_request .= "User-Agent: reCAPTCHA/PHP\r\n";
$http_request .= "\r\n";
$http_request .= $req;
$response = '';
if( false == ( $fs = @fsockopen($host, $port, $errno, $errstr, 10) ) ) {
die ('Could not open socket');
}
fwrite($fs, $http_request);
while ( !feof($fs) )
$response .= fgets($fs, 1160); // One TCP-IP packet
fclose($fs);
$response = explode("\r\n\r\n", $response, 2);
return $response;
}
class ReCaptchaResponse
{
var $is_valid;
var $error;
}
function recaptcha_check_answer ($privkey, $remoteip, $challenge, $response, $extra_params = array())
{
if ($privkey == null || $privkey == '') {
die ("To use reCAPTCHA you must get an API key from <a href='https://www.google.com/recaptcha/admin/create'>https://www.google.com/recaptcha/admin/create</a>");
}
if ($remoteip == null || $remoteip == '') {
die ("For security reasons, you must pass the remote ip to reCAPTCHA");
}
if ($challenge == null || strlen($challenge) == 0 || $response == null || strlen($response) == 0) {
$recaptcha_response = new ReCaptchaResponse();
$recaptcha_response->is_valid = false;
$recaptcha_response->error = 'incorrect-captcha-sol';
return $recaptcha_response;
}
$response = _recaptcha_http_post (RECAPTCHA_VERIFY_SERVER, "/recaptcha/api/verify",
array (
'privatekey' => $privkey,
'remoteip' => $remoteip,
'challenge' => $challenge,
'response' => $response
) + $extra_params
);
$answers = explode ("\n", $response [1]);
$recaptcha_response = new ReCaptchaResponse();
if (trim ($answers [0]) == 'true') {
$recaptcha_response->is_valid = true;
}
else {
$recaptcha_response->is_valid = false;
$recaptcha_response->error = $answers [1];
}
return $recaptcha_response;
}
function recaptcha_get_signup_url ($domain = null, $appname = null)
{
return "https://www.google.com/recaptcha/admin/create?" . _recaptcha_qsencode (array ('domains' => $domain, 'app' => $appname));
}
function _recaptcha_aes_pad($val)
{
$block_size = 16;
$numpad = $block_size - (strlen ($val) % $block_size);
return str_pad($val, strlen ($val) + $numpad, chr($numpad));
}
function _recaptcha_aes_encrypt($val,$ky)
{
if (! function_exists ("mcrypt_encrypt")) {
die ("To use reCAPTCHA Mailhide, you need to have the mcrypt php module installed.");
}
$mode=MCRYPT_MODE_CBC;
$enc=MCRYPT_RIJNDAEL_128;
$val=_recaptcha_aes_pad($val);
return mcrypt_encrypt($enc, $ky, $val, $mode, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0");
}
function _recaptcha_mailhide_urlbase64 ($x)
{
return strtr(base64_encode ($x), '+/', '-_');
}
function recaptcha_mailhide_url($pubkey, $privkey, $email)
{
if ($pubkey == '' || $pubkey == null || $privkey == "" || $privkey == null) {
die ("To use reCAPTCHA Mailhide, you have to sign up for a public and private key, " .
"you can do so at <a href='http://www.google.com/recaptcha/mailhide/apikey'>http://www.google.com/recaptcha/mailhide/apikey</a>");
}
$ky = pack('H*', $privkey);
$cryptmail = _recaptcha_aes_encrypt ($email, $ky);
return "http://www.google.com/recaptcha/mailhide/d?k=" . $pubkey . "&c=" . _recaptcha_mailhide_urlbase64 ($cryptmail);
}
function _recaptcha_mailhide_email_parts ($email)
{
$arr = preg_split("/@/", $email );
if (strlen ($arr[0]) <= 4) {
$arr[0] = substr ($arr[0], 0, 1);
} else if (strlen ($arr[0]) <= 6) {
$arr[0] = substr ($arr[0], 0, 3);
} else {
$arr[0] = substr ($arr[0], 0, 4);
}
return $arr;
}
function recaptcha_mailhide_html($pubkey, $privkey, $email)
{
$emailparts = _recaptcha_mailhide_email_parts ($email);
$url = recaptcha_mailhide_url ($pubkey, $privkey, $email);
return htmlentities($emailparts[0]) . "<a href='" . htmlentities ($url) .
"' onclick=\"window.open('" . htmlentities ($url) . "', '', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=500,height=300'); return false;\" title=\"Reveal this e-mail address\">...</a>@" . htmlentities ($emailparts [1]);
}
?>
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