inital

composer.json

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+{
+    "require": {
+        "singlewallet/singlewallet-php-sdk": "^1.3"
+    }
+}

config.xml

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+<?xml version="1.0" encoding="UTF-8" ?>
+<module>
+    <name>singlewallet</name>
+    <displayName><![CDATA[SingleWallet]]></displayName>
+    <version><![CDATA[1.0]]></version>
+    <description><![CDATA[Accept Tether in all popular blockchains with SingleWallet.]]></description>
+    <author><![CDATA[SingleWallet]]></author>
+    <tab><![CDATA[payments_gateways]]></tab>
+    <confirmUninstall>Are you sure you want to uninstall?</confirmUninstall>
+    <is_configurable>1</is_configurable>
+    <need_instance>0</need_instance>
+    <limited_countries></limited_countries>
+</module>

controllers/front/index.php

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+<?php
+
+header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');
+header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
+header('Cache-Control: no-store, no-cache, must-revalidate');
+header('Cache-Control: post-check=0, pre-check=0', false);
+header('Pragma: no-cache');
+header('Location: ../');
+exit;

controllers/front/payment.php

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+<?php
+
+
+use singlewallet\helper\DBHelper;
+
+class SinglewalletPaymentModuleFrontController extends ModuleFrontController {
+
+    public $auth = true;
+
+    public function postProcess(){
+        $cart = $this->context->cart;
+        $apiKey = Configuration::get('singlewallet_api_key');
+
+        if ($cart->id_customer == 0 || $cart->id_address_delivery == 0 || $cart->id_address_invoice == 0 || !$this->module->active || empty($apiKey)) {
+            Tools::redirect('index.php?controller=order&step=1');
+        }
+
+        $authorized = false;
+
+        foreach (Module::getPaymentModules() as $module) {
+            if ($module['name'] == 'singlewallet') {
+                $authorized = true;
+                break;
+            }
+        }
+
+        if (!$authorized) {
+            $this->redirectToErrorPage('This payment method is not available');
+        }
+
+        $customer = new Customer($cart->id_customer);
+
+        if (!Validate::isLoadedObject($customer)) {
+            Tools::redirect('index.php?controller=order&step=1');
+        }
+
+        $language = $this->context->language->iso_code;
+        $currency = $this->context->currency->iso_code;
+        $products = $this->getProductsList($cart->getProducts());
+        $ttl = Configuration::get('singlewallet_ttl',null,null,null,60);
+
+        $total = (string)$cart->getOrderTotal(true, Cart::BOTH);
+
+        $result = $this->module->validateOrder($cart->id, 1, $cart->getOrderTotal(), 'Single Wallet');
+        if(!$result){
+            $this->redirectToErrorPage('error occurred while validating order');
+        }
+
+        $orderId = Order::getIdByCartId($cart->id);
+        $order = new Order($orderId);
+        $payload = json_encode($order);
+
+        $redirect = Context::getContext()->link->getPageLink('order-detail', true,null,[
+            'id_order'=>$orderId,
+        ]);
+
+        $sw = new \SingleWallet\SingleWallet($apiKey, '');
+        $invoice = (new \SingleWallet\Models\Request\Invoice())
+            ->setOrderName($products)
+            ->setOrderNumber("#$orderId")
+            ->setAmount($total)
+            ->setCurrencyCode($currency)
+            ->setLanguage($language)
+            ->setTtl($ttl)
+            ->setCallbackUrl(Context::getContext()->link->getModuleLink('singlewallet', 'webhook'))
+            ->setRedirectUrl($redirect)
+            ->setCancelUrl($redirect)
+            ->setPayload($payload);
+
+        if(Configuration::get('singlewallet_send_customer_email')){
+            $invoice->setCustomerEmail($customer->email);
+        }
+
+        $newInvoice = null;
+        try{
+            $newInvoice = $sw->createInvoice($invoice);
+        }catch(\Exception $e){}
+
+        if(is_null($newInvoice)){
+            $this->redirectToErrorPage('error occurred while creating your invoice');
+        }
+
+        $expireAt = time()+($ttl*60);
+        $createOrder = DBHelper::createOrder($orderId,$newInvoice->getId(), $newInvoice->getUrl(),$expireAt);
+
+        if(!$createOrder){
+            $this->redirectToErrorPage('error occurred while creating your invoice');
+        }
+
+        Tools::redirect($newInvoice->getUrl());
+    }
+
+    private function redirectToErrorPage($message){
+        Tools::redirect($this->context->link->getModuleLink('singlewallet','error',['msg'=>$message]));
+    }
+
+    private function getProductsList($products){
+        $count = count($products);
+        if($count == 1){
+            return $products[0]['name'];
+        }else if($count > 1){
+            return $products[0]['name']." and ".($count-1)." other items";
+        }
+
+        return "Order";
+    }
+}

controllers/front/redirect.php

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+<?php
+
+use singlewallet\helper\DBHelper;
+
+class SinglewalletRedirectModuleFrontController extends ModuleFrontController {
+
+    public function initContent(){
+        $orderId = Tools::getValue('order_id');
+
+        $invoiceOrder = DBHelper::getOrder($orderId);
+
+        $orderLink = Context::getContext()->link->getPageLink('order-detail', true,null,[
+            'id_order'=>$orderId,
+        ]);
+
+        if(is_null($invoiceOrder)){
+            Tools::redirect($orderLink);
+        }
+
+        $isUnderpaid = false;
+
+        if($invoiceOrder['status'] == 'new' || $invoiceOrder['status'] == 'expired'){
+            $remaining = $invoiceOrder['expire_at'] - time();
+
+            if($remaining > 600){ // 10 minutes
+                Tools::redirect($invoiceOrder['url']);
+            }
+        }else if($invoiceOrder['status'] == 'pending'){
+            Tools::redirect($orderLink);
+        }else if($invoiceOrder['status'] == 'paid'){
+            $isUnderpaid = DBHelper::isUnderpaid($orderId);
+        }
+
+        $order = new Order($orderId);
+        $products = $this->getProductsList($order->getCartProducts());
+
+        if($isUnderpaid){
+            $totalAmount = $order->total_paid - DBHelper::totalPaidForOrder($orderId);
+        }else{
+            $totalAmount = $order->total_paid;
+        }
+
+        $payload = json_encode($order);
+
+        $apiKey = Configuration::get('singlewallet_api_key');
+
+        $language = $this->context->language->iso_code;
+        $currency = $this->context->currency->iso_code;
+
+        $ttl = Configuration::get('singlewallet_ttl',null,null,null,60);
+
+        $sw = new \SingleWallet\SingleWallet($apiKey, '');
+        $invoice = (new \SingleWallet\Models\Request\Invoice())
+            ->setOrderName($products)
+            ->setOrderNumber("#$orderId")
+            ->setAmount($totalAmount)
+            ->setCurrencyCode($currency)
+            ->setLanguage($language)
+            ->setTtl($ttl)
+            ->setCallbackUrl(Context::getContext()->link->getModuleLink('singlewallet', 'webhook'))
+            ->setRedirectUrl($orderLink)
+            ->setCancelUrl($orderLink)
+            ->setPayload($payload);
+
+        if(Configuration::get('singlewallet_send_customer_email')){
+            $customer = new Customer($order->id_customer);
+            $invoice->setCustomerEmail($customer->email);
+        }
+
+        $newInvoice = null;
+        try{
+            $newInvoice = $sw->createInvoice($invoice);
+        }catch(\Exception $e){}
+
+        if(is_null($newInvoice)){
+            $this->redirectToErrorPage('error occurred while creating your invoice');
+        }
+
+        $expireAt = time()+($ttl*60);
+        $createOrder = DBHelper::createOrder($orderId,$newInvoice->getId(), $newInvoice->getUrl(),$expireAt);
+
+        if(!$createOrder){
+            $this->redirectToErrorPage('error occurred while creating your invoice');
+        }
+
+        Tools::redirect($newInvoice->getUrl());
+    }
+
+    private function redirectToErrorPage($message){
+        Tools::redirect($this->context->link->getModuleLink('singlewallet','error',['msg'=>$message]));
+    }
+
+    private function getProductsList($products){
+        $count = count($products);
+        if($count == 1){
+            return $products[0]['product_name'];
+        }else if($count > 1){
+            return $products[0]['product_name']." and ".($count-1)." other items";
+        }
+
+        return "Order";
+    }
+
+}

controllers/front/webhook.php

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+<?php
+
+use singlewallet\helper\DBHelper;
+
+class SinglewalletWebhookModuleFrontController extends ModuleFrontController {
+
+    public $ajax;
+
+    public function initContent(){
+        $this->ajax = 1;
+
+        $data = trim(file_get_contents("php://input"));
+
+        $apiKey = Configuration::get('singlewallet_api_key');
+        $secret = Configuration::get('singlewallet_secret');
+        $signature = $_SERVER['HTTP_SW_SIGNATURE'];
+
+        if (empty($apiKey) || empty($data) || empty($secret) || empty($signature)) {
+            Tools::redirect('/');
+        }
+
+        $sw = new \SingleWallet\SingleWallet($apiKey, $secret);
+
+        if(!$sw->isValidPayload($data, $signature)){
+            die;
+        }
+
+        $data = json_decode($data, true);
+        $invoiceId = $data['id'];
+        $checkInvoice = DBHelper::getOrderByInvoiceId($invoiceId);
+
+        if(is_null($checkInvoice) || in_array($checkInvoice['status'],['paid','cancelled','expired'])){
+            return;
+        }
+
+        $invoice = $sw->getInvoice($invoiceId);
+
+        $payload = json_decode($invoice->getPayload(),true);
+
+        $invoiceStatus = $invoice->getStatus();
+
+        $orderId = $payload['id'];
+
+        DBHelper::updateOrderStatus($invoice->getId(), $invoiceStatus);
+
+        if($invoiceStatus == 'pending' || $invoiceStatus == 'paid'){
+            $invoiceId = $invoice->getId();
+            $invoiceAmount = $invoice->getInvoiceAmount();
+            $fiatInvoiceAmount = $invoice->getFiatInvoiceAmount();
+            $paidAmount = $invoice->getPaidAmount();
+            $fiatPaidAmount = $invoice->getFiatPaidAmount();
+            $exchangeRate = $invoice->getExchangeRate();
+            $txid = $invoice->getTxid();
+            $txidUrl = $invoice->getBlockchainUrl();
+            $exception = $invoice->getException();
+            $currency = $invoice->getCurrencyCode();
+
+            $checkPayment = DBHelper::getPayment($txid);
+            if(is_null($checkPayment)){
+                DBHelper::createOrderPayment($orderId, $invoiceId, $invoiceAmount, $fiatInvoiceAmount, $paidAmount, $fiatPaidAmount, $exchangeRate, $currency, $txid, $txidUrl, $invoiceStatus, $exception);
+            }
+
+            if($invoiceStatus == 'paid'){
+                if($exception == 'none' || $exception == 'overpaid'){
+                    DBHelper::updatePaymentStatus($txid, $invoiceStatus);
+                    $this->confirmOrder($orderId);
+                }
+            }
+        }
+
+    }
+
+    public function confirmOrder($orderId){
+        $order = new Order($orderId);
+        $orderCurrentState = $order->current_state;
+        $paidState = Configuration::get('singlewallet_order_state');
+        if($orderCurrentState != $paidState){
+            $history = new OrderHistory();
+            $history->id_order = $order->id;
+            $history->id_employee = 1;
+            $history->id_order_state = $paidState;
+            $history->save();
+            $history->changeIdOrderState($paidState, $order , true);
+            $history->sendEmail($order);
+        }
+    }
+}

controllers/index.php

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+<?php
+
+header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');
+header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
+header('Cache-Control: no-store, no-cache, must-revalidate');
+header('Cache-Control: post-check=0, pre-check=0', false);
+header('Pragma: no-cache');
+header('Location: ../');
+exit;
+