viewinvoice.php

<?php
/*
 * @ PHP 7.2
 * @ Decoder version : 1.0.0.4
 * @ Release on : 09/06/2021
 * @ Website    : http://EasyToYou.eu
 */

define("CLIENTAREA", true);
require "init.php";
require "includes/gatewayfunctions.php";
require "includes/invoicefunctions.php";
require "includes/clientfunctions.php";
require "includes/adminfunctions.php";
$id = $invoiceid = $invoiceIdTitle = (int) $whmcs->get_req_var("id");
$breadcrumbnav = "<a href=\"index.php\">" . $whmcs->get_lang("globalsystemname") . "</a> > <a href=\"clientarea.php\">" . $whmcs->get_lang("clientareatitle") . "</a> > <a href=\"clientarea.php?action=invoices\">" . $_LANG["invoices"] . "</a> > <a href=\"viewinvoice.php?id=" . $invoiceid . "\">" . $_LANG["invoicenumber"] . $invoiceid . "</a>";
$invoice = new WHMCS\Invoice();
$invoiceExists = true;
try {
    $invoice->setID($invoiceid);
} catch (Exception $e) {
    $invoiceExists = false;
    $invoiceModel = $invoice->getModel();
    $invoiceOwnerId = $invoiceModel->userid;
    $adminUser = WHMCS\User\Admin::getAuthenticatedUser();
    if ($adminUser && !checkPermission("Manage Invoice", true)) {
        $adminUser = NULL;
    }
    $existingLanguage = NULL;
    if ($adminUser && App::getFromRequest("view_as_client")) {
        $existingLanguage = getUsersLang($invoiceOwnerId);
    }
    if ($invoiceExists && $invoice->getData("invoicenum")) {
        $invoiceIdTitle = $invoice->getData("invoicenum");
    }
    initialiseClientArea($whmcs->get_lang("invoicestitle") . $invoiceIdTitle, "", "", "", $breadcrumbnav);
    if (!$adminUser) {
        Auth::requireLoginAndClient(true);
        try {
            if (!$invoiceExists) {
                throw new Exception();
            }
            Auth::forceSwitchClientIdOrFail($invoiceOwnerId);
            if ($invoiceModel->status == WHMCS\Billing\Invoice::STATUS_DRAFT) {
                throw new Exception();
            }
            checkContactPermission("invoices");
        } catch (Exception $e) {
            $smarty->assign("error", "on");
            $smarty->assign("invalidInvoiceIdRequested", true);
            outputClientArea("viewinvoice", true);
            exit;
        }
    }
    $smarty->assign("invalidInvoiceIdRequested", false);
    if (($invoice->getData("status") === "Paid" || $invoice->getData("status") === "Payment Pending") && isset($_SESSION["orderdetails"]) && $_SESSION["orderdetails"]["InvoiceID"] === $invoiceid && !$_SESSION["orderdetails"]["paymentcomplete"]) {
        $_SESSION["orderdetails"]["paymentcomplete"] = true;
        redir("a=complete", "cart.php");
    }
    $gateway = $whmcs->get_req_var("gateway");
    if ($gateway) {
        check_token();
        $gateways = new WHMCS\Gateways();
        $validgateways = $gateways->getAvailableGateways($invoiceid);
        if (array_key_exists($gateway, $validgateways)) {
            $invoiceToUpdate = WHMCS\Billing\Invoice::find($invoiceid);
            if ($invoiceToUpdate && $invoiceToUpdate->paymentmethod !== $gateway) {
                $invoiceToUpdate->setPaymentMethod($gateway)->save();
            }
            run_hook("InvoiceChangeGateway", ["invoiceid" => $invoiceid, "paymentmethod" => $gateway]);
        }
        redir("id=" . $invoiceid);
    }
    $creditbal = get_query_val("tblclients", "credit", ["id" => $invoice->getData("userid")]);
    if ($invoice->getData("status") == "Unpaid" && 0 < $creditbal && !$invoice->isAddFundsInvoice()) {
        $balance = $invoice->getData("balance");
        $creditamount = $whmcs->get_req_var("creditamount");
        if ($whmcs->get_req_var("applycredit") && 0 < $creditamount) {
            check_token();
            if ($creditbal < $creditamount) {
                echo $_LANG["invoiceaddcreditovercredit"];
                exit;
            }
            if ($balance < $creditamount) {
                echo $_LANG["invoiceaddcreditoverbalance"];
                exit;
            }
            applyCredit($invoiceid, $invoice->getData("userid"), $creditamount);
            redir("id=" . $invoiceid);
        }
        $smartyvalues["manualapplycredit"] = true;
        $clientCurrency = getCurrency($invoice->getData("userid"));
        $smartyvalues["totalcredit"] = formatCurrency($creditbal, $clientCurrency["id"]) . generate_token("form");
        if (!$creditamount) {
            $creditamount = $balance <= $creditbal ? $balance : $creditbal;
        }
        $smartyvalues["creditamount"] = $creditamount;
    }
    $outputvars = $invoice->getOutput();
    $smartyvalues = array_merge($smartyvalues, $outputvars);
    $invoiceitems = $invoice->getLineItems();
    $smartyvalues["invoiceitems"] = $invoiceitems;
    $transactions = $invoice->getTransactions();
    $smartyvalues["transactions"] = $transactions;
    $paymentbutton = $invoice->getData("status") == "Unpaid" && 0 < $invoice->getData("balance") ? $invoice->getPaymentLink() : "";
    $smartyvalues["paymentbutton"] = $paymentbutton;
    $smartyvalues["paymentSuccess"] = (int) $whmcs->get_req_var("paymentsuccess");
    $smartyvalues["paymentInititated"] = (int) $whmcs->get_req_var("paymentinititated");
    $smartyvalues["paymentFailed"] = (int) $whmcs->get_req_var("paymentfailed");
    $smartyvalues["pendingReview"] = (int) $whmcs->get_req_var("pendingreview");
    $smartyvalues["offlineReview"] = (int) $whmcs->get_req_var("offlinepaid");
    $smartyvalues["offlinepaid"] = (int) $whmcs->get_req_var("offlinepaid");
    $smartyvalues["paymentSuccessAwaitingNotification"] = $invoice->showPaymentSuccessAwaitingNotificationMsg($smartyvalues["paymentSuccess"]);
    if ($whmcs->get_config("AllowCustomerChangeInvoiceGateway")) {
        $smartyvalues["allowchangegateway"] = true;
        $gateways = new WHMCS\Gateways();
        $availablegateways = $gateways->getAvailableGateways($invoiceid);
        $currency = Currency::factoryForClientArea();
        foreach ($availablegateways as $module => $value) {
            try {
                $gatewayInterface = WHMCS\Module\Gateway::factory($module);
                if (!$gatewayInterface->isSupportedCurrency($currency["code"])) {
                    unset($availablegateways[$module]);
                }
            } catch (Exception $e) {
                unset($availablegateways[$module]);
            }
        }
        $frm = new WHMCS\Form();
        $gatewaydropdown = generate_token("form") . $frm->dropdown("gateway", $availablegateways, $invoice->getData("paymentmodule"), "submit()");
        $smartyvalues["gatewaydropdown"] = $gatewaydropdown;
        $smartyvalues["tokenInput"] = generate_token("form");
        $smartyvalues["selectedGateway"] = $invoice->getData("paymentmodule");
        $smartyvalues["availableGateways"] = $availablegateways;
    } else {
        $smartyvalues["allowchangegateway"] = false;
    }
    $smartyvalues["taxIdLabel"] = Lang::trans(WHMCS\Billing\Tax\Vat::getLabel());
    outputClientArea("viewinvoice", true, ["ClientAreaPageViewInvoice"]);
    if ($existingLanguage) {
        swapLang($existingLanguage);
    }
}

?>