| <?xml version = "1.0" encoding="utf-8" ?> | |
| <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" | |
| "DTD/xhtml1-strict.dtd"> | |
| <html xmlns = "http://www.w3.org/1999/xhtml"> | |
| <meta charset="UTF-8"> | |
| <head> | |
| <title>NDN Put via WebSocket</title> | |
| <script type="text/javascript" src="../tools/build/ndn-js.js"></script> | |
| <script type="text/javascript"> | |
| var ndn = new NDN(); | |
| ndn.transport.connectWebSocket(ndn); | |
| var AsyncPutClosure = function AsyncPutClosure() { | |
| // Inherit from Closure. | |
| Closure.call(this); | |
| }; | |
| AsyncPutClosure.prototype.upcall = function(kind, upcallInfo) { | |
| if (kind == Closure.UPCALL_FINAL) { | |
| // Do nothing. | |
| } else if (kind == Closure.UPCALL_INTEREST) { | |
| console.log('AsyncPutClosure.upcall() called.'); | |
| var content = document.getElementById('content').value; | |
| var interest = upcallInfo.interest; | |
| var nameStr = escape(interest.name.getName()); | |
| var si = new SignedInfo(); | |
| si.setFields(); | |
| var answer = DataUtils.toNumbersFromString(content); | |
| var co = new ContentObject(new Name(nameStr), si, answer, new Signature()); | |
| co.sign(); | |
| var coBinary = encodeToBinaryContentObject(co); | |
| // If we directly use coBinary.buffer to feed ws.send(), WebSocket | |
| // will end up sending a packet with 10000 bytes of data. That | |
| // is, WebSocket will flush the entire buffer in BinaryXMLEncoder | |
| // regardless of the offset of the Uint8Array. So we have to | |
| // create a new Uint8Array buffer with just the right size and | |
| // copy the content from coBinary to the new buffer. | |
| // ---Wentao | |
| var bytearray = new Uint8Array(coBinary.length); | |
| bytearray.set(coBinary); | |
| upcallInfo.ndn.transport.ws.send(bytearray.buffer); | |
| console.log('ws.send() finised.'); | |
| return Closure.RESULT_INTEREST_CONSUMED; | |
| } | |
| return Closure.RESULT_OK; | |
| }; | |
| function run() { | |
| var contentName = document.getElementById('contentname').value; | |
| var result = ndn.registerPrefix(new Name(contentName), new AsyncPutClosure()); | |
| document.getElementById('result').innerHTML = 'Content name \'' + contentName | |
| +'\' published. Result: ' + result; | |
| } | |
| </script> | |
| </head> | |
| <body > | |
| <form> | |
| <div> | |
| <p>Please Enter a Content Name:</p> | |
| <input id="contentname" type="text" name="CONTENTNAME" value="/wentao.shang/regtest001" /> | |
| <p>Please Enter the Content:</p> | |
| <textarea id="content" cols="40" rows="5" name="CONTENT" >This works!</textarea> | |
| <br /> | |
| </div> | |
| </form> | |
| <div> | |
| <button onclick="run()">Publish Content</button> | |
| </div> | |
| <p id="result"></p> | |
| </body> | |
| </html> |