Web-Aprs-Passcode/index.html at master · estemanito/Web-Aprs-Passcode · GitHub

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<!DOCTYPE html>
<html lang="en">
  <head>

    <title>APRS Passcode Generator</title>
    <meta name="description" content="This is a web-based tool to generate passcodes for the APRS-IS network with your amateur radio callsign."/>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">

    <script src="https://cdn.jsdelivr.net/npm/vue@2.6.11"></script>
    <script>
      document.addEventListener('DOMContentLoaded', function () {
        new Vue({
          el: '#container',
          data: {
            callsign: "",
            passcode: ""
          },
          methods: {
            getPasscode(callsign) {
              if((/^[a-zA-Z0-9-]+$/).test(callsign)){
                callsign = callsign.toUpperCase();
                let i = 0;
                let tmp_code = 29666;
                while(i < callsign.length){
                  // ^ = XOR Operation
                  tmp_code = tmp_code ^ callsign.charCodeAt(i) * 256;
                  tmp_code = tmp_code ^ callsign.charCodeAt(i+1);
                  i += 2;
                }
                tmp_code = tmp_code & 32767;
                this.passcode = tmp_code;
              }
              else{
                this.passcode = "";
                alert("Invalid Callsign, Try Again!");
                this.callsign = "";
              }
            }
          }
        })
      })
    </script>

    <style type="text/css">
      body {
        font-family: Arial, sans-serif;
        font-size: 14px;
        background-color: #cfcbcb;
      }
      label {
        width: 100%;
        font-weight: bold;
      }
      #container {
        margin: 0 auto;
        width: 400px;
        padding: 10px;
        border: 1px solid #020202;
        background-color: #ffffffdc;
      }
      #passcode {
        font-size: 16px;
      }
    </style>

</head>
<body>

  <div id="container">
    <h2>APRS Passcode Generator</h2>
    <p>Enter your amature radio callsign to get a Passocde for the APRS-IS network.</p>
    <form  v-on:submit.prevent="getPasscode(callsign)" >
      <label for="callsign"><b>Callsign:</b></label>
      <input  v-model=callsign type="text" id="callsign" name="callsign">
      <button  v-on:click="getPasscode(callsign)" type="button">Get Passcode!</button>
      <p id="passcode"><b>Your Passcode: {{ passcode }}</b></p>
    </form>
    <p>Source Code on <a href="https://github.com/DO3SWW/web-aprs-passcode" title="Github" target="_blank" rel="noopener">Github</a></p>
  </div>

</body>
</html>