Implemented first draft of usdt integration

[ashthecoder05]

USDT Payment Gateway Integration for WHMCS via Blockonomics

Description

Accept USDT (Tether) payments on your WHMCS website with ease. With this integration, payments are directly connected to your customers' MetaMask wallets, ensuring secure and straightforward transactions without intermediaries.

Key Features

• Direct Wallet Connection: Enable USDT payments that directly interact with MetaMask, providing a seamless payment experience.
• Security and Ownership: Payments are transferred directly into your own crypto wallet, mitigating common security risks associated with third-party intermediaries.
• Easy Installation and Management: Quick setup process and straightforward management through your WHMCS admin panel.

Installation Guide

1. Copy Integration Files: Transfer the modules folder to your root WHMCS directory.
2. Activate Gateway: Navigate in your WHMCS admin to Setup -> Payments -> Payment Gateways, and activate Blockonomics as a payment option.
3. **Configure Wallet Address:**Enter your USDT wallet address Blockonomics Merchants > Settings to ensure payment confirmations are received.
4. **Ether Scan API Key:**Get the Ether scan API key from the etherscan website (https://docs.etherscan.io/getting-started/viewing-api-usage-statistics) follow the sets mentioned in the blog
5. Network Type: Select the network test/production to test the payment gateway before making it public to the customer.
6. Upgrade Instructions (Optional): For users upgrading from version 1.8.X to 1.9.X, execute upgrade.php found in modules/gateways/blockonomics/upgrade.php to remove unnecessary files and ensure your system is up-to-date.

Tags

USDT WHMCS Payment Gateway Crypto Payments Blockonomics MetaMask Secure Payments Cryptocurrency

[DarrenWestwood]

Overall code and functionality is working well.

It will be a good idea to only start polling if USDT is enabled, to avoid unnecessarily starting the background process.

[DarrenWestwood]

I experience issues with this check. $output is set, but the script is not running in the background. I had to use the following in order for the script to start running correctly:

        // Command to check if the specific PHP script is running
        $output = [];
        $checkCommand = "pgrep -f 'php $path'";
        exec($checkCommand, $output, $return_var);

        $pid = (int)$output[0];
        $command = "ps -p $pid";
        $output = [];
        exec($command, $output);
        $isRunning = count($output) > 1;

        if (!$isRunning) {
            $startCommand = "php $path > /dev/null &";
            exec($startCommand, $startOutput, $startReturnVar);
        }

Please verify the commands that check if background polling is already running are correct and update accordingly.
Another working alternative:

        // Command to check if the specific PHP script is running
        $command = "ps aux | grep $path";
        $output = [];
        exec($command, $output);
        $isRunning = count($output) > 2;

        if (!$isRunning) {
            $startCommand = "php $path > /dev/null &";
            exec($startCommand, $startOutput, $startReturnVar);
        }