* @copyright Copyright (c) 2020-2021
* @license https://opensource.org/licenses/MIT MIT License
* @link https://github.com/giandonatoinverso/PHP-Dynamic-Qr-code
* @version 1.0
*/
require_once 'config/config.php';
require_once BASE_PATH . '/lib/ICS/ICS.php';
require_once BASE_PATH . '/lib/vCard/vCard.php';
class Static_Qrcode
{
private $sData; // Data for the qr code
private $sContent; // Content to be stored in the database
/**
*
*/
public function __construct()
{
}
/**
*
*/
public function __destruct()
{
}
/**
* Set friendly columns\' names to order tables\' entries
*/
public function setOrderingValues()
{
$ordering = [
'id' => 'ID',
'filename' => 'File Name',
'type' => 'Type',
'content' => 'Content',
'qrcode' => 'Qr Code',
'created_at' => 'Created at',
'updated_at' => 'Updated at'
];
return $ordering;
}
/**
* create a qr code of type "text"
* @string text -> required
*/
public function textQrcode($text)
{
if($text != NULL){
$this->sData = $text;
$this->sContent = 'Text: '.$text;
$this->add($this->sData, $this->sContent);
}
else
$this->requiredFieldsError();
}
/**
* create a qr code of type "emai"
* @string email -> required
* @string subject
* @string message -> required
*/
public function emailQrcode($email, $subject, $message)
{
if($email != NULL && $message != NULL){
$this->sData = 'MATMSG:TO:'.$email.';SUB:'.$subject.';BODY:'.$message.';';
$this->sContent = 'Email: '.$email.'
'.'Subject: '.$subject.'
'.'Message: '.$message;
$this->add($this->sData, $this->sContent);
}
else
$this->requiredFieldsError();
}
/**
* create a qr code of type "phone"
* @int country code -> required
* @string phone number -> required
*/
public function phoneQrcode($country_code, $phone_number)
{
if($phone_number != NULL){
$this->sData = 'TEL:'.$country_code.$phone_number;
$this->sContent = 'Phone number: '.$country_code.$phone_number;
$this->add($this->sData, $this->sContent);
}
else
$this->requiredFieldsError();
}
/**
* create a qr code of type "sms"
* @int country code -> required
* @string phone number -> required
* @string message -> required
*/
public function smsQrcode($country_code, $phone_number, $message)
{
if($phone_number != NULL && $message != NULL){
$this->sData = 'SMSTO:'.$country_code.$phone_number.':'.$message;
$this->sContent = 'Phone number: '.$country_code.$phone_number.'
'.'Message: '.$message;
$this->add($this->sData, $this->sContent);
}
else
$this->requiredFieldsError();
}
/**
* create a qr code of type "whatsapp"
* @int country code -> required
* @string phone number -> required
* @string message
*/
public function whatsappQrcode($country_code, $phone_number, $message)
{
if($phone_number != NULL){
$this->sData = 'https://wa.me/'.$country_code.$phone_number.'?text='.$message;
$this->sContent = 'Phone number: '.$country_code.$phone_number.'
'.'Message: '.$message;
$this->add($this->sData, $this->sContent);
}
else
$this->requiredFieldsError();
}
/**
* create a qr code of type "skype"
* @string skype username -> required
*/
public function skypeQrcode($skype_username)
{
if($skype_username != NULL){
$this->sData = 'skype:'.$skype_username.'?call';
$this->sContent = 'Skype username: '.$skype_username;
$this->add($this->sData, $this->sContent);
}
else
$this->requiredFieldsError();
}
/**
* create a qr code of type "location"
* @int latitude -> required
* @int longitude -> required
*/
public function locationQrcode($latitude, $longitude)
{
if($latitude != NULL && $longitude != NULL){
$this->sData = 'GEO:'.$latitude.','.$longitude.';';
$this->sContent = 'Latitude: '.$latitude.'
'.'Longitude: '.$longitude;
$this->add($this->sData, $this->sContent);
}
else
$this->requiredFieldsError();
}
/**
* create a qr code of type "vcard"
*
*/
public function vcardQrcode($fullname, $nickname, $email, $website, $phone, $home_phone, $work_phone, $company, $role, $categories, $note, $photo, $address, $city, $postcode, $state)
{
if($fullname != NULL && $phone != NULL){
$vcard = new vCard;
$vcard->name($fullname);
$vcard->nickName($nickname);
$vcard->email($email);
$vcard->url($website);
$vcard->cellPhone($phone);
$vcard->homePhone($home_phone);
$vcard->workPhone($work_phone);
$vcard->organization($company);
$vcard->role($role);
$vcard->categories($categories);
$vcard->note($note);
$vcard->photo($photo);
$vcard->address($address, $city, $postcode, $state);
$vcard->create();
$this->sData = $vcard->get();
$this->sContent = '';
$this->sContent .= 'Full name: '.$fullname.'
'.'Nickname: '.$nickname.'
'.'Email: '.$email.'
'.'Website: '.$website.'
';
$this->sContent .= '
';
$this->sContent .= 'Company: '.$company.'
'.'Role: '.$role.'
'.'Categories: '.$categories.'
'.'Note: '.$note.'
';
$this->sContent .= '
';
$this->sContent .= 'Phone: '.$phone.'
'.'Home Phone: '.$home_phone.'
'.'Work phone: '.$work_phone.'
'.'Address: '.$address.' '.$city.' '.$postcode.' '.$state.'
';
$this->sContent .= '
';
$this->sContent .= 'Title: '.$title.'
'.'Start event: '.$start.'
'.'End event: '.$end.'
';
$this->sContent .= '
';
$this->sContent .= 'Location: '.$location.'
'.'Description: '.$description.'
'.'URL: '.$url.'
';
$this->sContent .= '
'.'Url: '.$url;
$this->add($this->sData, $this->sContent);
}
else
$this->requiredFieldsError();
}
/**
* create a qr code of type "wifi"
* @string encryption -> required
* @string ssid -> required
* @string password
*/
public function wifiQrcode($encryption, $ssid, $password)
{
if($ssid != NULL){
$this->sData = 'WIFI:T:'.$encryption.';S:'.$ssid.';P:'.$password.';';
$this->sContent = 'Encryption: '.$encryption.'
'.'SSID: '.$ssid.'
'.'Password: '.$password;
$this->add($this->sData, $this->sContent);
}
else
$this->requiredFieldsError();
}
/**
* create a qr code of type "paypal"
* @string payment type -> required
* @string email -> required
* @string item_name -> required
* @int item_id
* @int amount -> required
* @string currency -> required
* @int shipping
* @int tax_rate
*/
public function paypalQrcode($payment_type, $email, $item_name, $item_id, $amount, $currency, $shipping, $tax_rate)
{
if($email != NULL && $item_name != NULL && $amount != NULL){
$this->sData = 'https://www.paypal.com/webapps/xorouter?cmd='.$payment_type.'&business='.$email.'&item_name='.$item_name.'&item_number='.$item_id.'&amount='.$amount.'¤cy_code='.$currency.'&shipping='.$shipping.'&tax_rate='.$tax_rate;
$this->sContent = '';
$this->sContent .= 'Payment type: '.$payment_type.'
'.'Email: '.$email.'
'.'Item name: '.$item_name.'
'.'Item id: '.$item_id.'
';
$this->sContent .= '
';
$this->sContent .= 'Amount: '.$amount.'
'.'Currency: '.$currency.'
'.'Shipping: '.$shipping.'
'.'Tax rate: '.$tax_rate.'
';
$this->sContent .= '
'.'Amount: '.$amount.'
';
$this->sContent .= 'Label: '.$label.'
'.'Message: '.$message;
$this->add($this->sData, $this->sContent);
}
else
$this->requiredFieldsError();
}
/**
This private function is used by both add () and edit () of this class to initially store in the array that will be sent to the database the:
* filename, created_at, type of qr code
* N.B. If the function is called from edit () the "type" field will not be taken as it cannot be modified
*/
private function collect()
{
$data_to_db['filename'] = htmlspecialchars($_POST['filename'], ENT_QUOTES, 'UTF-8');
$data_to_db['created_at'] = date('Y-m-d H:i:s');
if($_GET['type'] != NULL)
$data_to_db['type'] = htmlspecialchars($_GET['type']);
return $data_to_db;
}
/**
* Set option for qr code like:
* Error Correction Level, size (default = 100), foreground, background
* return array of values
*/
private function setOptions()
{
$errorCorrectionLevel = 'L';
if (isset($_POST['level']) && in_array($_POST['level'], array('L','M','Q','H')))
$errorCorrectionLevel = $_POST['level'];
$size = 100;
if (isset($_POST['size']))
$size = min(max((int)$_POST['size'], 100), 1000);
$foreground = substr($_POST['foreground'], 1); // We eliminate the character "#" for the hexadecimal color
$background = substr($_POST['background'], 1);
//$logo = $_POST['optionlogo'];
return array(
"errorCorrectionLevel" => $errorCorrectionLevel,
"size" => $size,
"foreground" => $foreground,
"background" => $background,
//"optionlogo" => $logo,
);
}
/**
* Add qr code
* Check out http://goqr.me/api/ for more information
* We save the file obtained with the chosen name and in the selected folder
* We save into db the url of qrcode image
*/
private function add($sData, $sContent)
{
$sData = urlencode($sData);
$data_to_db['created_by'] = $_SESSION['user_id'];
$data_to_db = $this->collect();
$data_to_db['format'] = $_POST['format'];
$data_to_db['qrcode'] = $data_to_db['filename'].'.'.$data_to_db['format'];
$data_to_db['content'] = $sContent;
$options = $this->setOptions();
if(!file_exists(DIRECTORY.$data_to_db['filename'].'.'.$data_to_db['format'])){
$content = file_get_contents('https://api.qrserver.com/v1/create-qr-code/?data='.$sData.'&&size='.$options['size'].'x'.$options['size'].'&ecc='.$options['errorCorrectionLevel'].'&margin=0&color='.$options['foreground'].'&bgcolor='.$options['background'].'&qzone=2'.'&format='.$data_to_db['format']);
$filename = DIRECTORY.$data_to_db['filename'].'.'.$data_to_db['format'];
try{
file_put_contents($filename, $content);
}
catch(Exception $e){
$this->failure($e->getMessage());
}
// If you want you can customide qr code with logo
//$this->addLogo($data_to_db['qrcode'], $options['optionlogo']);
$db = getDbInstance();
$last_id = $db->insert('static_qrcodes', $data_to_db);
}
else
$this->failure('You cannot create a new qr code with an existing name on the server!');
if ($last_id){
$this->success('Qr code added successfully!');
}
else{
echo 'Insert failed: ' . $db->getLastError();
exit();
}
}
/**
* Edit qr code
*
*/
public function edit()
{
$db = getDbInstance();
$static_id = htmlspecialchars($_GET['static_id'], ENT_QUOTES, 'UTF-8');
$old_filename = htmlspecialchars($_GET['filename'], ENT_QUOTES, 'UTF-8');
$query = $db->query("SELECT format FROM ".DATABASE_PREFIX."static_qrcodes WHERE id=$static_id"); // get format
$format = $query[0]['format'];
$data_to_db = $this->collect();
$data_to_db['qrcode'] = $data_to_db['filename'].'.'.$format; // update qrcode in db
if(!file_exists(DIRECTORY.$data_to_db['filename'].'.'.$format) || $data_to_db['filename'] == $old_filename){
$db->where('id', $static_id);
$stat = $db->update('static_qrcodes', $data_to_db);
try{
rename(DIRECTORY.$old_filename.'.'.$format, DIRECTORY.$data_to_db['filename'].'.'.$format);
}
catch(Exception $e){
$this->failure($e->getMessage());
}
}
else
$this->failure('You cannot edit a qr code with an existing name on the server!');
if ($stat){
$this->success('Qr code updated successfully!');
}
else{
echo 'Insert failed: ' . $db->getLastError();
exit();
}
}
/**
* Delete qr code
*
*/
public function cancel($static_id, $filename)
{
if($_SESSION['admin_type']!='super')
$this->failure('You don\'t have permission to perform this action');
$db = getDbInstance();
$query = $db->query("SELECT format FROM ".DATABASE_PREFIX."static_qrcodes WHERE id=$static_id"); // get format
$format = $query[0]['format'];
$db->where('id', $static_id);
$status = $db->delete('static_qrcodes');
try{
unlink(DIRECTORY.$filename.'.'.$format);
}
catch(Exception $e){
$this->failure($e->getMessage());
}
if ($status)
$this->info('Qr code deleted successfully!');
else
$this->failure('Unable to delete qr code');
}
/**
* Add logo
* IMPORTANT: I do not recommend to use this option because there may be problems with the scanning of the qr code as some readers may not recognize the code
*/
private function addLogo($src, $logo = 'none')
{
try
{
if($logo != 'none')
{
$logo = imagecreatefrompng($_SERVER['HTTP_HOST'].'/admin'.$logo);
$QR = imagecreatefrompng(BASE_PATH.$src);
$QR_width = imagesx($QR);
$QR_height = imagesy($QR);
$logo_width = imagesx($logo);
$logo_height = imagesy($logo);
// Scale logo to fit in the QR Code
$logo_qr_width = $QR_width/3;
$scale = $logo_width/$logo_qr_width;
$logo_qr_height = $logo_height/$scale;
// You can try also with imagecopymerge() with same arguments
imagecopyresampled($QR, $logo, $QR_width/3, $QR_height/3, 0, 0, $logo_qr_width, $logo_qr_height, $logo_width, $logo_height);
//$output = Set directory for saving image;
header('Content-Type: image/png');
imagepng($QR /*, $output*/);
imagedestroy($QR);
}
}
catch(Exception $e)
{
$this->failure($e->getMessage());
}
}
/**
* Flash message Failure process
*/
private function failure($message)
{
$_SESSION['failure'] = $message;
// Redirect to the listing page
header('Location: static_qrcodes.php');
// Important! Don't execute the rest put the exit/die.
exit();
}
/**
* Flash message Success process
*/
private function success($message)
{
$_SESSION['success'] = $message;
// Redirect to the listing page
header('Location: static_qrcodes.php');
// Important! Don't execute the rest put the exit/die.
exit();
}
/**
* Flash message Info process
*/
private function info($message)
{
$_SESSION['info'] = $message;
// Redirect to the listing page
header('Location: static_qrcodes.php');
// Important! Don't execute the rest put the exit/die.
exit();
}
/**
* Error message if not filled in all the fields required by the type of the qr code
*/
private function requiredFieldsError()
{
$this->failure('The qr code cannot be created if you do not fill in all the required fields (*)');
}
}
?>