TC
/
Zoraxy
mirror of https://git.hkwtc.org/TC/ReverseProxy


			
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							<!DOCTYPE html>
<html>
    <head>
        <meta name="apple-mobile-web-app-capable" content="yes" />
        <meta name="viewport" content="user-scalable=no, width=device-width, initial-scale=1, maximum-scale=1"/>
        <meta charset="UTF-8">
        <meta name="theme-color" content="#4b75ff">
        <link rel="icon" type="image/png" href="./favicon.png" />
        <title>Web SSH | Zoraxy</title>
        <link rel="stylesheet" href="../script/semantic/semantic.min.css">
        <script src="../script/jquery-3.6.0.min.js"></script>
        <script src="../../script/ao_module.js"></script>
        <script src="../script/semantic/semantic.min.js"></script>
        <script src="../script/tablesort.js"></script>
        <link rel="stylesheet" href="../main.css">
        <style>
            #loadingUI{
                width: 100%;
                height: 100%;
                background-color: black;
                position: fixed;
                top: 0;
                left: 0;
                display:none;
            }

            #loadingUI div{
                color: white;
                font-family: monospace;
            }
        </style>
    </head>
    <body>
        <div id="loadingUI">
            <div style="margin-top: 2em; margin-left: 2em; color: white;">
                <i class="ui loading spinner icon"></i> <b>Creating virtual terminal session</b><br>
                <div id="counter" style="color: white; margin-left: 1.9em;">Setting Up Environment</div>
            </div>
        </div>
        <div id="connectionSettings">
            <div class="ui container">
                <br>
                <div class="ui form">
                    <div class="two fields">
                    <div class="field">
                        <label>Server Name or IP Address</label>
                        <input type="text" name="server" placeholder="e.g. example.com or 192.168.1.1">
                    </div>
                    <div class="field">
                        <label>Port Number</label>
                        <input type="number" name="port" placeholder="e.g. 22 or 2022">
                    </div>
                        <div class="field">
                            <label>Username</label>
                            <input type="text" name="username" placeholder="root">
                        </div>
                    </div>
                </div>


                <div style="float: right;">
                    <button class="ui basic button"  onclick="connectSSH()"><i class="ui blue exchange icon"></i> Connect</button>
                    <button class="ui basic button" onclick="window.open('', '_self', ''); window.close();"><i class="ui red remove icon"></i> Close</button>
                </div>
            </div>
            <br><br><br>
        </div>
        <script>
            /*
                SSHCONN

                This interface is designed to start a ssh connection instance
                and brige the virtual terminal to the web front-end

                Example Usage: 
                let settingPayload = {
                    server: "192.168.1.100",
                    port: 2022,
                    username: "pi"
                }

                let settings = encodeURIComponent(JSON.stringify(settingPayload));
                window.open("sshconn.html#" + settings)
            */

            if (window.location.hash.length > 1){
                try{
                    var c = JSON.parse(decodeURIComponent((window.location.hash.substr(1))));
                    $('input[name="server"]').val(c.server);
                    $('input[name="port"]').val(c.port);
                    $('input[name="username"]').val(c.username);
                    connectSSH();
                }catch(ex){
                    alert("invalid usage")
                }
            }

            //Start the SSH connection process
            function connectSSH() {
                const serverValue = $('input[name="server"]').val().trim();
                var portString = $('input[name="port"]').val().trim();
                if (portString.trim() == ""){
                    portString = "22";
                }
                const portValue = parseInt(portString, 10);
                const username = $('input[name="username"]').val().trim();
                if (username == ""){
                    username = "root";
                }
                // Validate server name or IP address
                const validServer = isValidServerNameOrIPAddress(serverValue);
                
                // Validate port number
                const validPort = (portValue >= 1 && portValue <= 65535);
                
                if (validServer && validPort) {
                    // Call doSomething function if both inputs are valid
                    createSSHProxy(serverValue, portValue, username);
                } else {
                    // Display an error message if either input is invalid
                    const errorLabel = $('<div>').addClass('ui red basic label');
                    if (!validServer) {
                    errorLabel.text('Invalid server name or IP address');
                    $('input[name="server"]').addClass('error');
                    } else if (!validPort) {
                    errorLabel.text('Invalid port number');
                    $('input[name="port"]').addClass('error');
                    }
                    const field = $('input[name="server"]').closest('.field');
                    field.append(errorLabel);
                }
            }

            function redirectWithCountdown(url) {
                $("#loadingUI").show();
                $("#connectionSettings").hide();
                var count = 3;
                var interval = setInterval(function() {
                    $("#counter").html("ETA " + count + " seconds");
                        count--;
                        if (count === 0) {
                        clearInterval(interval);
                        window.location.href = url;
                    }
                }, 1000);
            }
                

            //Try to ask the server side to create a ssh proxy object
            function createSSHProxy(remoteAddr, remotePort, username){
                //Request to create a ssh session instance
                $.ajax({
                    url: "/api/tools/webssh",
                    data: {ipaddr: remoteAddr, port: remotePort, username:username},
                    method: "POST",
                    success: function(sessionToken){
                        if (sessionToken.error != undefined){
                            alert(sessionToken.error);
                        }else{
                            //Session created. Redirect to ssh terminal
                            redirectWithCountdown("/web.ssh/" + sessionToken + "/");
                        }
                    },
                    error: function(){

                    }

                })
            }


            function isValidServerNameOrIPAddress(str) {
                // First, check if the string is a valid IP address
                const ipAddressRegex = /^(\d{1,3}\.){3}\d{1,3}$/;
                if (ipAddressRegex.test(str)) {
                    return true;
                }

                // If the string is not an IP address, check if it is a valid domain name or server name
                const serverNameRegex = /^[a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(\.[a-zA-Z]{2,})+$/;
                if (serverNameRegex.test(str)) {
                    return true;
                }

                // If the string is neither an IP address nor a server name, return false
                return false;
            }
        </script>
    </body>
</html>