';
}
echo '
';
captcha_booster_display_captcha();
echo '
';
}
}
/*this function adds captcha to the comment form*/
if(!function_exists("captcha_booster_comment_form"))
{
function captcha_booster_comment_form()
{
global $display_setting,$wpdb,$current_user;
if(is_user_logged_in())
{
if(is_super_admin())
{
$cpb_role="administrator";
}
else
{
$cpb_role = $wpdb->prefix."capabilities";
$current_user->role = array_keys($current_user->$cpb_role);
$cpb_role = $current_user->role[0];
}
if(($cpb_role == "administrator" && $display_setting[4] == "1") || ($cpb_role != "administrator" && $display_setting[5] == "0"))
{
echo '
';
captcha_booster_display_captcha();
echo '
';
}
}
else
{
echo '
';
captcha_booster_display_captcha();
echo '
';
//return true;
}
}
}
/* This function checks the captcha posted with a login when login errors are absent */
if(!function_exists("captcha_booster_login_check"))
{
function captcha_booster_login_check($user,$username,$password)
{
global $captcha_booster_options,$wpdb,$error_data_array;
$ip_address = ip2long(getIpAddress_for_captcha_booster());
$str_key = $captcha_booster_options["captcha_key"]["key"];
if("" == session_id())
{
@session_start();
}
if(isset($_SESSION["captch_booster_login"]) && true === $_SESSION["captch_booster_login"])
{
return $user;
}
/* Delete errors, if they set */
if(isset($_SESSION["captcha_booster_error"]))
{
unset($_SESSION["captcha_booster_error"]);
}
/* Add error if captcha is empty */
if((!isset($_REQUEST["ux_txt_captcha_input"])||"" == esc_attr($_REQUEST["ux_txt_captcha_input"])) && isset($_REQUEST["loggedout"]))
{
$error = new WP_Error();
$error->add("captcha_booster_error", "
" . captcha_booster_logical_error. " : " . $error_data_array["for_captcha_empty_error"]);
wp_clear_auth_cookie();
return $error;
}
if(isset($_REQUEST["captcha_booster_result"]) && isset($_REQUEST["ux_txt_captcha_input"]) && isset($_REQUEST["captcha_booster_time"]))
{
if(0 == strcasecmp(trim(captcha_booster_decode($_REQUEST["captcha_booster_result"],$str_key, $_REQUEST["captcha_booster_time"])),esc_attr($_REQUEST["ux_txt_captcha_input"])))
{
$userdata = get_user_by("login",$username);
if($userdata && wp_check_password($password,$userdata->user_pass))
{
/* Captcha was matched */
$_SESSION["captch_booster_login"] = true;
user_log_in_success($username,$ip_address);
return $user;
}
else
{
$_SESSION["captch_booster_login"] = false;
user_log_in_fails($username,$ip_address);
}
}
else
{
$_SESSION["captch_booster_login"] = false;
user_log_in_fails($username,$ip_address);
wp_clear_auth_cookie();
/* Add error if captcha is incorrect */
$error = new WP_Error();
if("" == esc_attr($_REQUEST["ux_txt_captcha_input"]))
{
$error->add("captcha_booster_error", "
" . captcha_booster_logical_error. " : " . $error_data_array["for_captcha_empty_error"]);
}
else
{
$error->add("captcha_booster_error", "
" . captcha_booster_logical_error. " : " . $error_data_array["for_invalid_captcha_error"]);
}
return $error;
}
}
else
{
if(isset($_REQUEST["log"]) && isset($_REQUEST["pwd"]))
{
/* captcha was not found in _REQUEST */
$error = new WP_Error();
$error->add("captcha_booster_error", "
" . captcha_booster_logical_error. " : " . $error_data_array["for_captcha_empty_error"]);
return $error;
}
else
{
/* it is not a submit */
return $user;
}
}
}
}
/* function to check captcha for lost password form*/
if(!function_exists("captcha_booster_lost_password_check"))
{
function captcha_booster_lost_password_check()
{
global $captcha_booster_options,$wpdb;
$error_data = $wpdb->get_var
(
$wpdb->prepare
(
"SELECT meta_value FROM ".captcha_booster_meta().
" WHERE meta_key = %s",
"error_message"
)
);
$error_data_array = unserialize($error_data);
$str_key = $captcha_booster_options["captcha_key"]["key"];
if(isset($_REQUEST["ux_txt_captcha_input"]) && "" == esc_attr($_REQUEST["ux_txt_captcha_input"]))
{
$errors = new WP_Error("captcha_wrong", "
" . captcha_booster_logical_error . " : " .$error_data_array["for_captcha_empty_error"]);
return $errors;
}
if(0 == strcasecmp(trim(captcha_booster_decode($_REQUEST["captcha_booster_result"],$str_key, $_REQUEST["captcha_booster_time"])),esc_attr($_REQUEST["ux_txt_captcha_input"])))
{
/* Captcha was matched */
}
else
{
$errors = new WP_Error("captcha_wrong", "
" . captcha_booster_logical_error . " : ".$error_data_array["for_invalid_captcha_error"]);
return $errors;
}
return;
}
}
/* function to check captcha for registeration form*/
if(!function_exists("captcha_booster_register_check"))
{
function captcha_booster_register_check($login,$email,$errors)
{
global $captcha_booster_options,$wpdb,$error_data_array;
$str_key = $captcha_booster_options["captcha_key"]["key"];
if(isset($_REQUEST["ux_txt_captcha_input"]) && "" == esc_attr($_REQUEST["ux_txt_captcha_input"]))
{
$errors->add("captcha_blank", "
" . captcha_booster_logical_error . " : " . $error_data_array["for_captcha_empty_error"]);
return $errors;
}
if(0 == strcasecmp(trim(captcha_booster_decode($_REQUEST["captcha_booster_result"],$str_key, $_REQUEST["captcha_booster_time"])),esc_attr($_REQUEST["ux_txt_captcha_input"])))
{
/* Captcha was matched */
}
else
{
$errors->add("captcha_wrong", "
". captcha_booster_logical_error. " : " . $error_data_array["for_invalid_captcha_error"]);
}
return($errors);
}
}
/* Functionality of the captcha logic work */
if(!function_exists("captcha_booster_display_captcha"))
{
function captcha_booster_display_captcha()
{
global $captcha_booster_options,$captcha_time,$captcha_plugin_info,$wpdb,$captcha_array,$display_setting;
if(!$captcha_plugin_info)
{
include_once(ABSPATH . "wp-admin/includes/plugin.php");
$captcha_plugin_info = get_plugin_data(__FILE__);
}
if(!isset($captcha_booster_options["captcha_key"]))
{
$captcha_booster_options = get_option("captcha_option");
}
if("" == $captcha_booster_options["captcha_key"]["key"] || $captcha_booster_options["captcha_key"]["time"] < time() - (24 * 60 * 60))
{
captcha_booster_generate_key();
}
$str_key = $captcha_booster_options["captcha_key"]["key"];
if($captcha_array["captcha_type_text_logical"] == "logical_captcha" && $captcha_array["mathematical_operations"] == "arrange_order")
{
$arrange_order = explode(",",isset($captcha_array["arrange_order"]) ? $captcha_array["arrange_order"]: "");
$arrange_array = array();
$arrange_array = RandomNumbers(10,20,5);
$copy_array = array();
$copy_array = $arrange_array;
$arrange_type = array();
if($arrange_order[0] == 1)
{
$arrange_type[] = "Ascending";
}
if($arrange_order[1] == 1)
{
$arrange_type[] = "Descending";
}
$rand_arrange_array = rand(0,count($arrange_type)-1);
switch($arrange_type[$rand_arrange_array])
{
case "Ascending":
$arr_convert = sort($arrange_array);
$arr_convert = implode(",",$arrange_array);
break;
case "Descending":
$arr_convert = rsort($arrange_array);
$arr_convert = implode(",",$arrange_array);
break;
}
$imploded_form = implode(",",$copy_array);
$str_arrange_expretion = "";
$str_arrange_expretion .= ($arrange_type[$rand_arrange_array] == "Ascending")? captcha_booster_ascending_order : captcha_booster_descending_order;
$str_arrange_expretion .= "
".captcha_booster_seperate_numbers."
* ";
$str_arrange_expretion .= $imploded_form." = ";
$str_arrange_expretion .= "
";
/* Add hidden field with encoding result */ ?>
" />
$array_number[1])
{
$array_number[2] = $array_number[0];
}
else
{
$array_number[2] = $array_number[1];
}
break;
}
$str_relational_expretion = "";
$str_relational_expretion .= captcha_booster_arithemtic." :
* ";
$str_relational_expretion .= ($relation_op[$rand_relation_op] == "Smaller") ? captcha_booster_smaller_number : captcha_booster_larger_number;
$str_relational_expretion .= $array_number[0]." ";
$str_relational_expretion .= captcha_booster_logical_or;
$str_relational_expretion .= " ".$array_number[1]." ? ";
$str_relational_expretion .= "
";
/* Add hidden field with encoding result */ ?>
" />
get_var
(
$wpdb->prepare
(
"SELECT meta_value FROM " . captcha_booster_meta()."
WHERE meta_key = %s",
"captcha_type"
)
);
$maths_array = unserialize($maths_action);
$arithmetic_actions = explode(",",isset($maths_array["arithmetic_actions"]) ? $maths_array["arithmetic_actions"] : "");
/* If value for Plus on the settings page is set */
if(1 == $arithmetic_actions[0])
$math_actions[] = "+";
/* If value for Minus on the settings page is set */
if(1 == $arithmetic_actions[1])
$math_actions[] = "−";
/* If value for Increase on the settings page is set */
if(1 == $arithmetic_actions[2])
$math_actions[] = "×";
/* if value for division on setting page is set*/
if(1 == $arithmetic_actions[3])
$math_actions[]="⁄";
/* What is math action to display in the form */
$rand_math_action = rand(0,count($math_actions)- 1);
$array_math_expretion = array();
/* Add first part of mathematical expression */
$array_math_expretion[0] = rand(1,30);
/* Add second part of mathematical expression */
$array_math_expretion[1] = rand(1,30);
/* Calculation of the mathematical expression result */
switch($math_actions[$rand_math_action ])
{
case "+":
$array_math_expretion[2] = $array_math_expretion[0] + $array_math_expretion[1];
break;
case "−":
/* Result must not be equal to the negative number */
if($array_math_expretion[0] < $array_math_expretion[1])
{
$number = $array_math_expretion[0];
$array_math_expretion[0] = $array_math_expretion[1];
$array_math_expretion[1] = $number;
}
$array_math_expretion[2] = $array_math_expretion[0] - $array_math_expretion[1];
break;
case "×":
$array_math_expretion[2] = $array_math_expretion[0] * $array_math_expretion[1];
break;
case "⁄":
if($array_math_expretion[0]<$array_math_expretion[1])
{
$number = $array_math_expretion[0];
$array_math_expretion[0] = $array_math_expretion[1];
$array_math_expretion[1] = $number;
}
while($array_math_expretion[0] % $array_math_expretion[1] != 0)
{
$array_math_expretion[0]++;
}
$array_math_expretion[2] = $array_math_expretion[0] / $array_math_expretion[1];
if(is_float($array_math_expretion[2]))
{
$float_value = round($array_math_expretion[2],1);
$devision = explode(".",$float_value);
$array_math_expretion[2] = $devision[1] >= 5 ? ceil($float_value) : floor($float_value);
}
break;
}
/* String for display */
$str_math_expretion = "";
$str_math_expretion .= captcha_booster_arithemtic." :
* ";
$str_math_expretion .= $array_math_expretion[0];
/* Add math action */
$str_math_expretion .= " " . $math_actions[$rand_math_action];
$str_math_expretion .= " " . $array_math_expretion[1];
$str_math_expretion .= " = ";
$str_math_expretion .= '
';
/* Add hidden field with encoding result */
$str_math_expretion .= '
';
echo $str_math_expretion;
}
}
}
/*This Function generates a key which is used during validation of captcha*/
if(!function_exists("captcha_booster_generate_key"))
{
function captcha_booster_generate_key($lenght = 15)
{
global $captcha_booster_options;
$simbols = get_bloginfo("url") . time();
$simbols_lenght = strlen($simbols);
$simbols_lenght--;
$str_key = NULL;
for($x = 1; $x <= $lenght; $x++)
{
$position = rand(0,$simbols_lenght);
$str_key .= substr($simbols, $position,1);
}
$captcha_booster_options["captcha_key"]["key"] = md5($str_key);
$captcha_booster_options["captcha_key"]["time"] = time();
update_option("captcha_option", $captcha_booster_options);
}
}
/* function to check captcha for comment form*/
if(!function_exists("captcha_booster_comment_form_check"))
{
function captcha_booster_comment_form_check()
{
global $captcha_booster_options,$wpdb,$error_data_array;
$str_key = $captcha_booster_options["captcha_key"]["key"];
if(isset($_REQUEST["ux_txt_captcha_input"]) && "" == esc_attr($_REQUEST["ux_txt_captcha_input"]))
{
wp_die(captcha_booster_logical_error.": " . $error_data_array["for_captcha_empty_error"]);
}
if(isset($_REQUEST["captcha_booster_result"]) && isset($_REQUEST["captcha_booster_time"]) && isset($_REQUEST["ux_txt_captcha_input"]))
{
if(0 == strcasecmp(trim(captcha_booster_decode($_REQUEST["captcha_booster_result"],$str_key, $_REQUEST["captcha_booster_time"])),esc_attr($_REQUEST["ux_txt_captcha_input"])))
{
return;
/* Captcha was matched */
}
else
{
wp_die(captcha_booster_logical_error.": ". $error_data_array["for_invalid_captcha_error"]);
}
}
}
}
/* This function checks the captcha posted with lostpassword form */
if(!function_exists("captcha_booster_lost_password"))
{
function captcha_booster_lost_password($user)
{
global $captcha_booster_options,$error_data_array,$errors;
$str_key = $captcha_booster_options["captcha_key"]["key"];
/* If field 'user login' is empty - return */
if(isset($_REQUEST["user_login"]) && "" == esc_attr($_REQUEST["user_login"]))
{
return;
}
/* If captcha doesn't entered */
if(isset($_REQUEST["ux_txt_captcha_input"]) && "" == esc_attr($_REQUEST["ux_txt_captcha_input"]))
{
$error = new WP_Error("captcha_wrong", "
" . captcha_booster_logical_error . " : " .$error_data_array["for_captcha_empty_error"]);
return $error;
}
/* Check entered captcha */
if(isset($_REQUEST["captcha_booster_result"]) && isset($_REQUEST["ux_txt_captcha_input"]) && isset($_REQUEST["captcha_booster_time"]) && 0 == strcasecmp(trim(captcha_booster_decode($_REQUEST["captcha_booster_result"],$str_key, $_REQUEST["captcha_booster_time"])), esc_attr($_REQUEST["ux_txt_captcha_input"])))
{
return $user;
}
else
{
$error = new WP_Error("captcha_wrong", "
" . captcha_booster_logical_error . " : " .$error_data_array["for_invalid_captcha_error"]);
return $error;
}
}
}
/* Function for encoding number */
if(!function_exists("captcha_booster_encode"))
{
function captcha_booster_encode($String,$Password,$captcha_time)
{
/* Check if key for encoding is empty */
if(!$Password)
{
die(captcha_booster_encryption);
}
$Salt = md5($captcha_time, true);
$String = substr(pack("H*",sha1($String)),0,1) . $String;
$StrLen = strlen($String);
$Seq = $Password;
$Gamma = "";
while(strlen($Gamma) < $StrLen)
{
$Seq = pack("H*",sha1($Seq . $Gamma . $Salt));
$Gamma .= substr($Seq, 0, 8);
}
return base64_encode($String ^ $Gamma);
}
}
/* Function for decoding number */
if(!function_exists("captcha_booster_decode"))
{
function captcha_booster_decode($String, $Key, $captcha_time)
{
/* Check if key for encoding is empty */
if(!$Key)
{
die(captcha_booster_decryption);
}
$Salt = md5($captcha_time,true);
$StrLen = strlen($String);
$Seq = $Key;
$Gamma = "";
while(strlen($Gamma) < $StrLen)
{
$Seq = pack("H*",sha1($Seq.$Gamma.$Salt));
$Gamma .= substr($Seq,0,8);
}
$String = base64_decode($String);
$String = $String^$Gamma;
$DecodedString = substr($String,1);
$Error = ord(substr($String,0,1) ^ substr(pack("H*",sha1($DecodedString)),0,1));
if($Error)
{
return false;
}
else
{
return $DecodedString;
}
}
}
if(!function_exists("RandomNumbers"))
{
function RandomNumbers($min, $max, $quantity)
{
$numbers = range($min, $max);
shuffle($numbers);
return array_slice($numbers, 0, $quantity);
}
}
?>