qrsync 0.3.0

Utility to copy files over WiFi to/from mobile devices inside a terminal using QR codes.
Documentation 
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<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <meta http-equiv="x-ua-compatible" content="ie=edge" />
    <meta name="viewport" content="width=device-width, user-scalable=no" />
    <title>Qr Sync</title>
    <link rel="stylesheet" href="/static/bootstrap.min.css" />
    <style>
      body {
        margin: 10px;
      }
    </style>
  </head>

  <body>
    <div class="container">
      <div class="row">
        <form id="upload-form">
          <h3>Send files or text</h3>
          <div class="form-group">
            <label for="binary-files">
              Files to transfer
            </label>
            <input
              class="form-control-file"
              type="file"
              id="binary-files"
              name="binary-files"
              multiple
            />
          </div>
          <div class="form-group form-check">
            <input
              type="checkbox"
              class="form-check-input"
              id="check-send-text"
            />
            <label class="form-check-label" for="check-send-text"
              >Show text options</label
            >
          </div>
          <div id="send-text-form" style="display: none;">
            <div class="form-group">
              <label for="plaintext-title">
                File Name
              </label>
              <input class="form-control" id="plaintext-title" />
            </div>
            <div class="form-group">
              <label for="plaintext-text">
                File Content
              </label>
              <textarea class="form-control" id="plaintext-text"></textarea>
            </div>
          </div>
          <div class="form-group">
            <input
              class="btn btn-primary form-control form-control-lg"
              type="submit"
              id="submit"
              name="submit"
              value="Transfer"
            />
          </div>
        </form>
      </div>
    </div>
    <script>
      var textCheckbox = document.getElementById("check-send-text");
      var textForm = document.getElementById("send-text-form");

      textCheckbox.onclick = function (e) {
        if (this.checked) {
          textForm.style.display = "block";
        } else {
          textForm.style.display = "none";
        }
      };
    </script>
    <script>
      var uploadForm = document.getElementById("upload-form");

      uploadForm.addEventListener("submit", function (e) {
        e.preventDefault();

        var xhr = new XMLHttpRequest();
        // Put the request response HTML ('Done' page) on the window
        xhr.onreadystatechange = function () {
          if (xhr.readyState === 4) {
            document.write(xhr.response);
          }
        };

        var formData = new FormData(uploadForm);
        var titleInput = document.getElementById("plaintext-title");
        var textInput = document.getElementById("plaintext-text");
        var textCheckbox = document.getElementById("check-send-text");

        if ((titleInput.value || textInput.value) && textCheckbox.checked) {
          var currentDate = new Date()
            .toJSON()
            .slice(0, 19)
            .replace(/[-T]/g, "_");
          // If the user didn't specify a file name, use 'qrcp-text-file-${currentDate}'
          var filename = titleInput.value || "qrcp-text-file-" + currentDate;
          var blob = new Blob([textInput.value + "\n"], { type: "text/plain" });
          // Append the text file to the form data with '.txt' extension
          formData.append("text-file", blob, filename + ".txt");
        }

        xhr.open("POST", "/receive");
        xhr.send(formData);
      });
    </script>
  </body>
</html>