tlink/apps/extension/entrypoints/sandbox/index.html at 6bff3d46baa1a787cfa729d5e7fd4cbb897e029a · TokenScript-Framework/tlink · GitHub

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<!doctype html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Tlink</title>
    <meta name="manifest.type" content="browser_action" />
    <style>
      body {
        margin: 0;
        padding: 0;
        overflow: hidden;
      }
      html,
      body,
      #root {
        height: 100%;
      }
    </style>
  </head>
  <body>
    <div id="root">
      <iframe
        id="tlink-iframe"
        class="relative size-full"
        style="height: 100%; width: 100%; border: none"
        allow="clipboard-write"
        sandbox="allow-same-origin allow-scripts allow-forms allow-popups allow-popups-to-escape-sandbox allow-modals"></iframe>
    </div>
    <script>

      ;(function () {
        const iframe = document.getElementById("tlink-iframe")

        async function handleMessage(event) {
          // We only proxy messages that originate from the child iframe or parent window
          // This prevents postMessage listeners of other tlink iframes on the same page causing duplicate requests to the background service
          if (
            event.source !== iframe.contentWindow &&
            event.source !== window.parent.window
          ) {
            return
          }

          if (event.data.type === "TLINK_API_REQUEST") {
            // forward ts viewer API request out
            window.parent.postMessage(
              { source: "TLINK_API_REQUEST", data: event.data.data },
              "*"
            )
          } else if (event.data.source === "TLINK_API_RESPONSE") {
            // forward ts viewer API response in
            iframe?.contentWindow?.postMessage(event.data, "*")
          } else if (event.data.source === "tlink-rpc-resp") {
            // forward response to ts viewer
            iframe?.contentWindow?.postMessage(event.data.data, "*")
          } else {
            // forward ts viewer message out
            window.parent.postMessage(
              { source: "tlink", data: event.data },
              "*"
            )
          }
        }

        function init() {
          const url = new URL(window.location.href)
          const dAppUrl = url.searchParams.get("url")
          if (dAppUrl) {
            iframe.src = dAppUrl
          }

          window.addEventListener("message", handleMessage)
        }

        init()
      })()
    </script>
  </body>
</html>