Send visitor a copy of the contact form php - php

Question

I would like to let the form send a copy to the email address which the visitor entered into 'label' => 'Email'.
3 php files are handling the whole thing and are as fallows:
This is the PHP Form which handles the input of the HTML
<?php
require_once('form_process.php');
$form = array(
'subject' => 'Contact Form',
'heading' => 'Submission',
'success_redirect' => '',
'resources' => array(
'checkbox_checked' => 'Checked',
'checkbox_unchecked' => 'Unchecked',
'submitted_from' => 'Form submitted from website: %s',
'submitted_by' => 'Visitor IP address: %s',
'too_many_submissions' => 'Too many recent submissions from this IP',
'failed_to_send_email' => 'Failed to send email',
'invalid_reCAPTCHA_private_key' => 'Invalid reCAPTCHA private key.',
'invalid_field_type' => 'Unknown field type \'%s\'.',
'invalid_form_config' => 'Field \'%s\' has an invalid configuration.',
'unknown_method' => 'Unknown server request method'
),
'email' => array(
'from' => 'info#myurl.com',
'to' => 'info#myurl.com'
),
'fields' => array(
'custom_U8149' => array(
'order' => 1,
'type' => 'string',
'label' => 'Name',
'required' => true,
'errors' => array(
'required' => 'Field \'Name\' is required.'
)
),
'Email' => array(
'order' => 2,
'type' => 'email',
'label' => 'Email',
'required' => true,
'errors' => array(
'required' => 'Field \'Email\' is required.',
'format' => 'Field \'Email\' has an invalid email.'
)
),
'custom_U8139' => array(
'order' => 3,
'type' => 'string',
'label' => 'Message',
'required' => false,
'errors' => array(
)
)
)
);
process_form($form);
?>
This is the form_process.php
<?php
require_once('form_throttle.php');
function process_form($form) {
if ($_SERVER['REQUEST_METHOD'] != 'POST')
die(get_form_error_response($form['resources']['unknown_method']));
if (formthrottle_too_many_submissions($_SERVER['REMOTE_ADDR']))
die(get_form_error_response($form['resources']['too_many_submissions']));
// will die() if there are any errors
check_required_fields($form);
// will die() if there is a send email problem
email_form_submission($form);
}
function get_form_error_response($error) {
return get_form_response(false, array('error' => $error));
}
function get_form_response($success, $data) {
if (!is_array($data))
die('data must be array');
$status = array();
$status[$success ? 'FormResponse' : 'MusePHPFormResponse'] = array_merge(array('success' => $success), $data);
return json_serialize($status);
}
function check_required_fields($form) {
$errors = array();
foreach ($form['fields'] as $field => $properties) {
if (!$properties['required'])
continue;
if (!array_key_exists($field, $_REQUEST) || empty($_REQUEST[$field]))
array_push($errors, array('field' => $field, 'message' => $properties['errors']['required']));
else if (!check_field_value_format($form, $field, $properties))
array_push($errors, array('field' => $field, 'message' => $properties['errors']['format']));
}
if (!empty($errors))
die(get_form_error_response(array('fields' => $errors)));
}
function check_field_value_format($form, $field, $properties) {
$value = get_form_field_value($field, $properties, $form['resources'], false);
switch($properties['type']) {
case 'checkbox':
case 'string':
case 'captcha':
// no format to validate for those fields
return true;
case 'checkboxgroup':
if (!array_key_exists('optionItems', $properties))
die(get_form_error_response(sprintf($form['resources']['invalid_form_config'], $properties['label'])));
// If the value received is not an array, treat it as invalid format
if (!isset($value))
return false;
// Check each option to see if it is a valid value
foreach($value as $checkboxValue) {
if (!in_array($checkboxValue, $properties['optionItems']))
return false;
}
return true;
case 'radiogroup':
if (!array_key_exists('optionItems', $properties))
die(get_form_error_response(sprintf($form['resources']['invalid_form_config'], $properties['label'])));
//check list of real radio values
return in_array($value, $properties['optionItems']);
case 'recaptcha':
if (!array_key_exists('recaptcha', $form) || !array_key_exists('private_key', $form['recaptcha']) || empty($form['recaptcha']['private_key']))
die(get_form_error_response($form['resources']['invalid_reCAPTCHA_private_key']));
$resp = recaptcha_check_answer($form['recaptcha']['private_key'], $_SERVER["REMOTE_ADDR"], $_POST["recaptcha_challenge_field"], $_POST["recaptcha_response_field"]);
return $resp->is_valid;
case 'email':
return 1 == preg_match('/^[a-z0-9!#$%&\'*+\/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&\'*+\/=?^_`{|}~-]+)*#(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?$/i', $value);
case 'radio': // never validate the format of a single radio element; only the group gets validated
default:
die(get_form_error_response(sprintf($form['resources']['invalid_field_type'], $properties['type'])));
}
}
function email_form_submission($form) {
if(!defined('PHP_EOL'))
define('PHP_EOL', '\r\n');
$form_email = ((array_key_exists('Email', $_REQUEST) && !empty($_REQUEST['Email'])) ? cleanup_email($_REQUEST['Email']) : '');
$to = $form['email']['to'];
$subject = $form['subject'];
$message = get_email_body($subject, $form['heading'], $form['fields'], $form['resources']);
$headers = get_email_headers($to, $form_email);
$sent = #mail($to, $subject, $message, $headers);
if(!$sent)
die(get_form_error_response($form['resources']['failed_to_send_email']));
$success_data = array(
'redirect' => $form['success_redirect']
);
echo get_form_response(true, $success_data);
}
function get_email_headers($to_email, $form_email) {
$headers = 'From: ' . $to_email . PHP_EOL;
$headers .= 'Reply-To: ' . $form_email . PHP_EOL;
$headers .= 'X-Mailer: Adobe Muse CC 2015.0.2.310 with PHP' . PHP_EOL;
$headers .= 'Content-type: text/html; charset=utf-8' . PHP_EOL;
return $headers;
}
function get_email_body($subject, $heading, $fields, $resources) {
$message = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">';
$message .= '<html xmlns="http://www.w3.org/1999/xhtml">';
$message .= '<head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"/><title>' . encode_for_form($subject) . '</title></head>';
$message .= '<body style="background-color: #ffffff; color: #000000; font-style: normal; font-variant: normal; font-weight: normal; font-size: 12px; line-height: 18px; font-family: helvetica, arial, verdana, sans-serif;">';
$message .= '<h2 style="background-color: #eeeeee;">' . $heading . '</h2>';
$message .= '<table cellspacing="0" cellpadding="0" width="100%" style="background-color: #ffffff;">';
$sorted_fields = array();
foreach ($fields as $field => $properties) {
// Skip reCAPTCHA from email submission
if ('recaptcha' == $properties['type'])
continue;
array_push($sorted_fields, array('field' => $field, 'properties' => $properties));
}
// sort fields
usort($sorted_fields, 'field_comparer');
foreach ($sorted_fields as $field_wrapper)
$message .= '<tr><td valign="top" style="background-color: #ffffff;"><b>' . encode_for_form($field_wrapper['properties']['label']) . ':</b></td><td>' . get_form_field_value($field_wrapper['field'], $field_wrapper['properties'], $resources, true) . '</td></tr>';
$message .= '</table>';
$message .= '<br/><br/>';
$message .= '<div style="background-color: #eeeeee; font-size: 10px; line-height: 11px;">' . sprintf($resources['submitted_from'], encode_for_form($_SERVER['SERVER_NAME'])) . '</div>';
$message .= '<div style="background-color: #eeeeee; font-size: 10px; line-height: 11px;">' . sprintf($resources['submitted_by'], encode_for_form($_SERVER['REMOTE_ADDR'])) . '</div>';
$message .= '</body></html>';
return cleanup_message($message);
}
function field_comparer($field1, $field2) {
if ($field1['properties']['order'] == $field2['properties']['order'])
return 0;
return (($field1['properties']['order'] < $field2['properties']['order']) ? -1 : 1);
}
function is_assoc_array($arr) {
if (!is_array($arr))
return false;
$keys = array_keys($arr);
foreach (array_keys($arr) as $key)
if (is_string($key)) return true;
return false;
}
function json_serialize($data) {
if (is_assoc_array($data)) {
$json = array();
foreach ($data as $key => $value)
array_push($json, '"' . $key . '": ' . json_serialize($value));
return '{' . implode(', ', $json) . '}';
}
if (is_array($data)) {
$json = array();
foreach ($data as $value)
array_push($json, json_serialize($value));
return '[' . implode(', ', $json) . ']';
}
if (is_int($data) || is_float($data))
return $data;
if (is_bool($data))
return $data ? 'true' : 'false';
return '"' . encode_for_json($data) . '"';
}
function encode_for_json($value) {
return preg_replace(array('/([\'"\\t\\\\])/i', '/\\r/i', '/\\n/i'), array('\\\\$1', '\\r', '\\n'), $value);
}
function encode_for_form($text) {
$text = stripslashes($text);
return htmlentities($text, ENT_QUOTES, 'UTF-8');// need ENT_QUOTES or webpro.js jQuery.parseJSON fails
}
function get_form_field_value($field, $properties, $resources, $forOutput) {
$value = $_REQUEST[$field];
switch($properties['type']) {
case 'checkbox':
return (($value == '1' || $value == 'true') ? $resources['checkbox_checked'] : $resources['checkbox_unchecked']);
case 'checkboxgroup':
if (!is_array($value))
return NULL;
$outputValue = array();
foreach ($value as $checkboxValue)
array_push($outputValue, $forOutput ? encode_for_form($checkboxValue) : stripslashes($checkboxValue));
if ($forOutput)
$outputValue = implode(', ', $outputValue);
return $outputValue;
case 'radiogroup':
return ($forOutput ? encode_for_form($value) : stripslashes($value));
case 'string':
case 'captcha':
case 'recaptcha':
case 'email':
return encode_for_form($value);
case 'radio': // never validate the format of a single radio element; only the group gets validated
default:
die(get_form_error_response(sprintf($resources['invalid_field_type'], $properties['type'])));
}
}
function cleanup_email($email) {
$email = encode_for_form($email);
$email = preg_replace('=((<CR>|<LF>|0x0A/%0A|0x0D/%0D|\\n|\\r)\S).*=i', null, $email);
return $email;
}
function cleanup_message($message) {
$message = wordwrap($message, 70, "\r\n");
return $message;
}
?>
This is the form_throttle.php
<?php
function formthrottle_check()
{
if (!is_writable('.'))
{
return '8';
}
try
{
if (in_array("sqlite",PDO::getAvailableDrivers(),TRUE))
{
$db = new PDO('sqlite:muse-throttle-db.sqlite3');
if ( file_exists('muse-throttle-db') )
{
unlink('muse-throttle-db');
}
}
else if (function_exists("sqlite_open"))
{
$db = new PDO('sqlite2:muse-throttle-db');
if ( file_exists('muse-throttle-db.sqlite3') )
{
unlink('muse-throttle-db.sqlite3');
}
}
}
catch( PDOException $Exception ) {
return '9';
}
$retCode ='5';
if ($db)
{
$res = $db->query("SELECT 1 FROM sqlite_master WHERE type='table' AND name='Submission_History';");
if (!$res or $res->fetchColumn() == 0)
{
$created = $db->exec("CREATE TABLE Submission_History (IP VARCHAR(39), Submission_Date TIMESTAMP)");
if($created == 0)
{
$created = $db->exec("INSERT INTO Submission_History (IP,Submission_Date) VALUES ('256.256.256.256', DATETIME('now'))");
}
if ($created != 1)
{
$retCode = '2';
}
}
if($retCode == '5')
{
$res = $db->query("SELECT COUNT(1) FROM Submission_History;");
if ($res && $res->fetchColumn() > 0)
{
$retCode = '0';
}
else
$retCode = '3';
}
// Close file db connection
$db = null;
}
else
$retCode = '4';
return $retCode;
}
function formthrottle_too_many_submissions($ip)
{
$tooManySubmissions = false;
try
{
if (in_array("sqlite",PDO::getAvailableDrivers(),TRUE))
{
$db = new PDO('sqlite:muse-throttle-db.sqlite3');
}
else if (function_exists("sqlite_open"))
{
$db = new PDO('sqlite2:muse-throttle-db');
}
}
catch( PDOException $Exception ) {
return $tooManySubmissions;
}
if ($db)
{
$res = $db->query("SELECT 1 FROM sqlite_master WHERE type='table' AND name='Submission_History';");
if (!$res or $res->fetchColumn() == 0)
{
$db->exec("CREATE TABLE Submission_History (IP VARCHAR(39), Submission_Date TIMESTAMP)");
}
$db->exec("DELETE FROM Submission_History WHERE Submission_Date < DATETIME('now','-2 hours')");
$stmt = $db->prepare("INSERT INTO Submission_History (IP,Submission_Date) VALUES (:ip, DATETIME('now'))");
$stmt->bindParam(':ip', $ip);
$stmt->execute();
$stmt->closeCursor();
$stmt = $db->prepare("SELECT COUNT(1) FROM Submission_History WHERE IP = :ip;");
$stmt->bindParam(':ip', $ip);
$stmt->execute();
if ($stmt->fetchColumn() > 25)
$tooManySubmissions = true;
// Close file db connection
$db = null;
}
return $tooManySubmissions;
}
?>