bsfiletransferdialog.java

一款即时通讯软件

                fileChooser = new JFileChooser(path);
                File f = new File(path);
                fileChooser.setSelectedFile(f);
            /*else
                fileChooser = new JFileChooser("");*/
            /*ExampleFileFilter filter = new ExampleFileFilter();
            filter.addExtension("jpg");
            filter.addExtension("gif");
            filter.setDescription("JPG & GIF Images");
            chooser.setFileFilter(filter);*/
            int returnVal;
            if (receiving) {
                returnVal = fileChooser.showSaveDialog(this);
            }
            else {
                returnVal = fileChooser.showOpenDialog(this);
            }
            if (returnVal == JFileChooser.APPROVE_OPTION) {
                fileTextField.setText(fileChooser.getSelectedFile().getPath());
            }
        }
        
        else if (c == cancelButton) {
            setVisible(false);
            dispose();
        }
        
        // up/downloads the file
        else if (c == okButton) {
            if (receiving) {
                tryDownload();
            }
            else {
                if (tryUpload())
                    mainFrame.sendOOB(jid, urlStr);
            }
        }
        
    }//GEN-LAST:event_actionPerformed
    
    /** Closes the dialog */
    private void closeDialog(java.awt.event.WindowEvent evt) {//GEN-FIRST:event_closeDialog
        setVisible(false);
        dispose();
    }//GEN-LAST:event_closeDialog
    
    
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JPanel jidPanel;
    private javax.swing.JTextField proxyTextField;
    private javax.swing.JTextField proxyPortTextField;
    private javax.swing.JPanel proxyPanel;
    private javax.swing.JPanel buttonPanel;
    private javax.swing.JTextField fileTextField;
    private javax.swing.JLabel jidLabel;
    private javax.swing.JButton okButton;
    private javax.swing.JCheckBox useProxyCheckBox;
    private javax.swing.JPanel filePanel;
    private javax.swing.JLabel proxyLabel;
    private javax.swing.JLabel proxyPortLabel;
    private javax.swing.JButton browseButton;
    private javax.swing.JLabel fileLabel;
    private javax.swing.JButton cancelButton;
    private javax.swing.JTextField jidTextField;
    private javax.swing.JPanel proxyParamPanel;
    // End of variables declaration//GEN-END:variables
    
    private javax.swing.JPanel serverPanel = null;
    private javax.swing.JLabel hostLabel = null;
    private javax.swing.JLabel portLabel = null;
    private javax.swing.JLabel pathLabel = null;
    private javax.swing.JTextField hostTextField = null;
    private javax.swing.JTextField portTextField = null;
    private javax.swing.JTextField pathTextField = null;
    
    private javax.swing.JPanel urlPanel = null;
    private javax.swing.JLabel urlLabel = null;
    private javax.swing.JTextField urlTextField = null;
    
    /** Adds GUI for web server information. */
    protected void addServerPanel() {
        java.awt.GridBagConstraints gridBagConstraints;
        
        serverPanel = new javax.swing.JPanel();
        hostLabel = new javax.swing.JLabel();
        portLabel = new javax.swing.JLabel();
        pathLabel = new javax.swing.JLabel();
        hostTextField = new javax.swing.JTextField();
        portTextField = new javax.swing.JTextField();
        pathTextField = new javax.swing.JTextField();
        
        serverPanel.setLayout(new java.awt.GridBagLayout());

        serverPanel.setBorder(new javax.swing.border.TitledBorder("File server"));
        hostLabel.setText("WWW host");
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 1;
        gridBagConstraints.gridy = 1;
        gridBagConstraints.insets = new java.awt.Insets(0, 5, 0, 10);
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        serverPanel.add(hostLabel, gridBagConstraints);

        portLabel.setText("Port");
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 1;
        gridBagConstraints.gridy = 2;
        gridBagConstraints.insets = new java.awt.Insets(0, 5, 0, 10);
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        serverPanel.add(portLabel, gridBagConstraints);

        pathLabel.setText("Remote file path");
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 1;
        gridBagConstraints.gridy = 3;
        gridBagConstraints.insets = new java.awt.Insets(0, 5, 0, 10);
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        serverPanel.add(pathLabel, gridBagConstraints);

        hostTextField.setColumns(30);
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 2;
        gridBagConstraints.gridy = 1;
        serverPanel.add(hostTextField, gridBagConstraints);

        portTextField.setColumns(30);
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 2;
        gridBagConstraints.gridy = 2;
        serverPanel.add(portTextField, gridBagConstraints);

        pathTextField.setColumns(30);
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 2;
        gridBagConstraints.gridy = 3;
        serverPanel.add(pathTextField, gridBagConstraints);

        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 1;
        gridBagConstraints.gridy = 3;
        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
        gridBagConstraints.weightx = 1.0;
        gridBagConstraints.weighty = 0.5;
        getContentPane().add(serverPanel, gridBagConstraints);
    }
    
    /** Adds GUI for URL information */
    protected void addUrlPanel() {
        java.awt.GridBagConstraints gridBagConstraints;
        
        urlPanel = new javax.swing.JPanel();
        urlLabel = new javax.swing.JLabel();
        urlTextField = new javax.swing.JTextField();
        
        urlPanel.setLayout(new java.awt.GridBagLayout());

        urlPanel.setBorder(new javax.swing.border.TitledBorder("File server"));
        urlLabel.setText("URL");
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 1;
        gridBagConstraints.gridy = 1;
        gridBagConstraints.insets = new java.awt.Insets(0, 5, 0, 10);
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        urlPanel.add(urlLabel, gridBagConstraints);

        urlTextField.setColumns(30);
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 2;
        gridBagConstraints.gridy = 1;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.EAST;
        urlPanel.add(urlTextField, gridBagConstraints);
        
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 1;
        gridBagConstraints.gridy = 3;
        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
        gridBagConstraints.weightx = 1.0;
        gridBagConstraints.weighty = 0.5;
        getContentPane().add(urlPanel, gridBagConstraints);
    }
    
    /** Enables proxy GUI, when proxy enabled */
    protected void enableProxyPanel(boolean enable) {
        //proxyParamPanel.setEnabled(enable);
        proxyTextField.setEnabled(enable);
        proxyLabel.setEnabled(enable);
        proxyPortTextField.setEnabled(enable);
        proxyPortLabel.setEnabled(enable);
    }
    
    /** 
     * Tries to download file. 
     * Returns if successfull. 
     */
    protected boolean tryDownload() {
        File file;
        URL url;
        String proxy;
        String proxyPort;

        try {
            file = new File(fileTextField.getText());
            url = new URL(urlTextField.getText());
            if (useProxyCheckBox.isSelected()) {
                proxy = proxyTextField.getText();
                proxyPort = proxyPortTextField.getText();
            }
            else
                proxy = proxyPort = null;
            URLFileTransfer.downloadURL(url, file, proxy, proxyPort);
        }
        catch (MalformedURLException e) {
            JOptionPane.showMessageDialog(this, "Cannot open URL",
                                          "Error", JOptionPane.ERROR_MESSAGE);
            return false;
        }
        catch (NullPointerException e) {
            JOptionPane.showMessageDialog(this, "Cannot open file",
                                          "Error", JOptionPane.ERROR_MESSAGE);
            return false;
        }
        catch (IOException e) {
            JOptionPane.showMessageDialog(this, e.getMessage(),
                                          "Error", JOptionPane.ERROR_MESSAGE);
            return false;
        }

        JOptionPane.showMessageDialog(this, "File saved",
                                      "Success", JOptionPane.INFORMATION_MESSAGE);
        setVisible(false);
        dispose();
        
        return true;
    }
    
    /** 
     * Tries to upload file. 
     * Returns if successfull. 
     */
    protected boolean tryUpload() {
        File file;
        URL url;
        String proxy;
        String proxyPort;
        //String urlStr;
        
        try {
            file = new File(fileTextField.getText());
            urlStr = new String("http://" + hostTextField.getText() +
                                ":" + portTextField.getText() + 
                                pathTextField.getText());
            if (urlStr.charAt(urlStr.length()-1) != '/')
                urlStr += "/";
            urlStr += file.getName();
            url = new URL(urlStr);
            if (useProxyCheckBox.isSelected()) {
                proxy = proxyTextField.getText();
                proxyPort = proxyPortTextField.getText();
            }
            else
                proxy = proxyPort = null;
            URLFileTransfer.uploadURL(file, url, proxy, proxyPort);
        }
        catch (MalformedURLException e) {
            JOptionPane.showMessageDialog(this, "Cannot open URL",
                                          "Error", JOptionPane.ERROR_MESSAGE);
            return false;
        }
        catch (NullPointerException e) {
            JOptionPane.showMessageDialog(this, "Cannot open file",
                                          "Error", JOptionPane.ERROR_MESSAGE);
            return false;
        }
        catch (IOException e) {
            JOptionPane.showMessageDialog(this, e.getMessage(),
                                          "Error", JOptionPane.ERROR_MESSAGE);
            return false;
        }

        JOptionPane.showMessageDialog(this, "File uploaded",
                                      "Success", JOptionPane.INFORMATION_MESSAGE);
        setVisible(false);
        dispose();
        
        return true;
    }
}