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POCalling Javascript on web page from Java
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copied!<p>My goal is to connect to an OWA page (Microsoft Office Outlook Web Access - basically an email client) and log-in, then read the new page loaded and find the inbox count.</p> <p>To login, I need to fill the username and the password fields and call a certain javascript function for which I know the name and header.</p> <p>How do I:</p> <ol> <li>Get the DOM for the page?</li> <li>Update the DOM to fill out the input text fields?</li> <li>Call that Javascript function?</li> <li>Get the new URL for the page I am redirected to?</li> </ol> <p>So far I am able to connect to a webpage and load its page source using the following Java code:</p> <pre><code> // open the connection to the welcome page callback.status("Opening connection..."); URLConnection connection = null; try { connection = url.openConnection(); } catch(IOException ex) { throw new Exception("I/O Problem while attempting URL connection"); } connection.setDoInput(true); // open input stream to read website callback.status("Opening data stream..."); InputStream input = null; try { input = connection.getInputStream(); } catch(IOException ex) { throw new Exception("I/O Problem while opening data stream"); } // read website contents callback.status("Reading site..."); String content = ""; byte[] buffer = new byte[100]; int totalBytesRead = 0; int bytesRead = 0; try { while((bytesRead = input.read(buffer)) != -1) { String newContent = new String(buffer, 0, bytesRead); content += newContent; } } catch(IOException ex) { throw new Exception("I/O Problem while reading website"); } System.out.println(content); </code></pre> <p>The result is the entire page source being output to the console - great. I also attempted to parse the page to get a DOM object which I can then follow to find my username and password fields:</p> <pre><code> XMLParserConfiguration config = new XML11DTDConfiguration(); DOMParser parser = new DOMParser(config); InputSource inputSource = new InputSource(input); inputSource.setByteStream(input); try { parser.parse(inputSource); } catch(SAXParseException ex) { } Document document = parser.getDocument(); visitNode(document, 0); </code></pre> <p>But I am getting a SAXParseException: :6:62: White spaces are required between publicId and systemId.</p> <p>Looks like this line is to blame:</p> <pre><code><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> </code></pre> <p>So I may need to change that DOMParser's configuration somehow to be lenient enough and "forgive" the white space requirement.</p>

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