authenticationdemopanel.java

java实现浏览器等本地桌面的功能

            JXErrorDialog.showDialog(null, "Application Error", e);
        }
    }//GEN-LAST:event_simpleAuthDialogBtnActionPerformed
    
    
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JLabel guestLabel;
    private javax.swing.JEditorPane jEditorPane1;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel5;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JScrollPane jScrollPane2;
    private javax.swing.JSplitPane jSplitPane1;
    private javax.swing.JLabel messageLabel;
    private org.jdesktop.swingx.JXList messageList;
    private javax.swing.JButton romainAuthDialogBtn;
    private javax.swing.JButton simpleAuthDialogBtn;
    private javax.swing.JLabel subjectLabel;
    private javax.swing.JLabel timestampLabel;
    // End of variables declaration//GEN-END:variables
    
    private static final class NullPasswordStore extends PasswordStore {
        public boolean set(String username, String server, char[] password) {
            return false;
        }

        public char[] get(String username, String server) {
            return new char[0];
        }
    }
    
    private final class NullLoginService extends LoginService {
        NullLoginService() {
            super("java.net");
        }
        
        public boolean authenticate(String name, char[] password, String server) {
            try {
                System.setProperty("http.proxyHost", "webcache.central");
                System.setProperty("http.proxyPort", "8080");
                URL url = new URL("http://www.javadesktop.org/forums/login!default.jspa?referrer=index.jspa");
                HttpURLConnection conn = (HttpURLConnection)url.openConnection();
                String sessionId = conn.getHeaderField("Set-cookie");
                sessionId = sessionId.substring(0, sessionId.indexOf(";"));
                System.out.println(sessionId);
                conn.disconnect();

                url = new URL("http://www.javadesktop.org/forums/login.jspa");
                conn = (HttpURLConnection)url.openConnection();
                conn.setInstanceFollowRedirects(false);
                conn.setRequestProperty("Cookie", sessionId);
                conn.setRequestMethod("POST");
                String output = "username=" + name + "&password=" + new String(password) + "&autoLogin=true&doLogin=Login";
                conn.setFixedLengthStreamingMode(output.length());
                conn.setDoOutput(true);
                OutputStream os = conn.getOutputStream();
                os.write(output.getBytes());
                os.flush();
                String jiveAuthToken = conn.getHeaderField("Set-cookie");
                jiveAuthToken = jiveAuthToken.substring(0, jiveAuthToken.indexOf(";"));
                System.out.println(jiveAuthToken);
                conn.disconnect();

                url = new URL("http://javadesktop.org/forums/rss/rssthreads.jsp?forumID=53");
                conn = (HttpURLConnection)url.openConnection();
                conn.setInstanceFollowRedirects(false);
                conn.setRequestProperty("Cookie", sessionId + "; " + jiveAuthToken);
                InputStream is = conn.getInputStream();
                byte[] data = new byte[1024];
                int length = -1;
                StringBuilder buffer = new StringBuilder();
                while ((length = is.read(data)) != -1) {
                    buffer.append(new String(data, 0, length));
                }
                is.close();
                conn.disconnect();
                
                SAXParserFactory factory = SAXParserFactory.newInstance();
                SAXParser parser = factory.newSAXParser();
                parser.parse(new InputSource(new StringReader(buffer.toString())), new DefaultHandler() {
                    private Stack<String> tags = new Stack<String>();
                    private String data;
                    private DataRow row;

                    public void characters(char[] ch, int start, int length) throws org.xml.sax.SAXException {
                        data = new String(ch, start, length);
                    }

                    public void startElement(String uri, String localName, String qName, org.xml.sax.Attributes attributes) throws org.xml.sax.SAXException {
                        tags.push(qName);
                    }

                    public void endElement(String uri, String localName, String qName) throws org.xml.sax.SAXException {
                        String name = tags.pop();
                        String parentName = tags.size() > 0 ? tags.peek() : null;
                        //if the parent was "channel"
                        if (parentName != null && parentName.equals("channel")) {
                            if (name.equals("title")) {
                                System.out.println("Title: " + data);
                            } else if (name.equals("link")) {
                                System.out.println("URL: " + data);
                            } else if (name.equals("description")) {
                                System.out.println("Description: " + data);
                            } else if (name.equals("language")) {
                                System.out.println("Language: " + data);
                            }
                        } else if (parentName != null && parentName.equals("item")) {
                            //if the parent was "item"
                            if (name.equals("title")) {
                                row = messages.appendRow();
                                row.setValue("messageId", messages.getRowCount());
                                row.setValue("title", data);
                            } else if (name.equals("link")) {
                                row.setValue("link", data);
                            } else if (name.equals("description")) {
                                row.setValue("description", data);
                            } else if (name.equals("jf:creationDate")) {
                                row.setValue("creationDate", data);
                            } else if (name.equals("jf:modificationDate")) {
                                row.setValue("modificationDate", data);
                            } else if (name.equals("jf:messageCount")) {
                                row.setValue("messageCount", data);
                            } else if (name.equals("jf:author")) {
                                row.setValue("author", data);
                            } else if (name.equals("jf:replyCount")) {
                                row.setValue("replyCount", data);
                                row.setStatus(DataRow.DataRowStatus.UNCHANGED);
                                
                                //now, load the thread data for this message
                                try {
                                    URL url = new URL((String)row.getValue("link"));
                                    HttpURLConnection conn = (HttpURLConnection)url.openConnection();
                                    InputStream is = conn.getInputStream();
                                    byte[] data = new byte[1024];
                                    int length = -1;
                                    StringBuilder buffer = new StringBuilder();
                                    while ((length = is.read(data)) != -1) {
                                        buffer.append(new String(data, 0, length));
                                    }

                                    //iterate over all the lines
                                    List<String> lines = Arrays.asList(buffer.toString().split("\\n"));
                                    Iterator<String> itr = lines.iterator();
                                    DataRow threadRow = null;
                                    while (itr.hasNext()) {
                                        String line = itr.next();
                                        if (line.contains("<span class=\"jive-guest\">")) {
                                            String guest = parseGuest(itr);
                                            if (!guest.startsWith("<nobr>")) {
                                                threadRow = threads.appendRow();
                                                threadRow.setValue("guest", guest);
                                                threadRow.setValue("messageId", row.getValue("messageId"));
                                            }
                                        } else if (line.contains("<span class=\"jive-subject\">")) {
                                            String subject = parseSubject(itr);
                                            if (threadRow != null) {
                                                threadRow.setValue("subject", subject);
                                                String timestamp = parseTimestamp(itr);
                                                threadRow.setValue("timestamp", timestamp);
                                            }
                                        } else if (line.contains("<td colspan=\"2\" style=\"border-top: 1px #ccc solid;\">")) {
                                            String message = parseMessage(itr);
                                            if (threadRow != null) {
                                                threadRow.setValue("message", message);
                                                threadRow.setStatus(DataRow.DataRowStatus.UNCHANGED);
                                            }
                                        }
                                    }
                                } catch (Exception e) {
                                    e.printStackTrace();
                                }
                            }
                        }
                    }
                });
                
                return true;
            } catch (Exception e) {
                e.printStackTrace();
                return false;
            }
        }

        private String parseGuest(Iterator<String> itr) {
            StringBuilder buffer = new StringBuilder();
            while (itr.hasNext()) {
                String line = itr.next();
                if (line.contains("</span>")) {
                    return buffer.toString().trim();
                } else {
                    buffer.append(removeBreakTags(line));
                }
            }
            return "";
        }

        private String parseSubject(Iterator<String> itr) {
            StringBuilder buffer = new StringBuilder();
            while (itr.hasNext()) {
                String line = itr.next();
                if (line.contains("</span>")) {
                    return buffer.toString().trim();
                } else if (line.contains("<a")) {
                    //skip it
                } else {
                    //if the line contains any <br> tags, remove them
                    buffer.append(removeBreakTags(line));
                }
            }
            return "";
        }

        private String parseTimestamp(Iterator<String> itr) {
            StringBuilder buffer = new StringBuilder();
            while (itr.hasNext()) {
                String line = itr.next();
                if (line.contains("</td>")) {
                    return buffer.toString().trim();
                } else if (line.contains("Posted:")) {
                    //skip it
                } else {
                    buffer.append(removeBreakTags(line));
                }
            }
            return "";
        }

        private String parseMessage(Iterator<String> itr) {
            StringBuilder buffer = new StringBuilder();
            while (itr.hasNext()) {
                String line = itr.next();
                if (line.contains("</td>")) {
                    return buffer.toString().trim();
                } else {
                    buffer.append(line);
                }
            }
            return "";
        }

        private String removeBreakTags(String line) {
            return line.replaceAll("\\<br\\>", "");
        }
    }    
}