public class ShowPreviewDialog extends SIPCommDialog
implements ActionListener, ChatLinkClickedListener {
/** Serial version UID. */
private static final long serialVersionUID = 1L;
/**
* The <tt>Logger</tt> used by the <tt>ShowPreviewDialog</tt> class and its instances for logging
* output.
*/
private static final Logger logger = Logger.getLogger(ShowPreviewDialog.class);
ConfigurationService cfg = GuiActivator.getConfigurationService();
/** The Ok button. */
private final JButton okButton;
/** The cancel button. */
private final JButton cancelButton;
/** Checkbox that indicates whether or not to show this dialog next time. */
private final JCheckBox enableReplacementProposal;
/** Checkbox that indicates whether or not to show previews automatically */
private final JCheckBox enableReplacement;
/** The <tt>ChatConversationPanel</tt> that this dialog is associated with. */
private final ChatConversationPanel chatPanel;
/** Mapping between messageID and the string representation of the chat message. */
private Map<String, String> msgIDToChatString = new ConcurrentHashMap<String, String>();
/**
* Mapping between the pair (messageID, link position) and the actual link in the string
* representation of the chat message.
*/
private Map<String, String> msgIDandPositionToLink = new ConcurrentHashMap<String, String>();
/**
* Mapping between link and replacement for this link that is acquired from it's corresponding
* <tt>ReplacementService</tt>.
*/
private Map<String, String> linkToReplacement = new ConcurrentHashMap<String, String>();
/** The id of the message that is currently associated with this dialog. */
private String currentMessageID = "";
/** The position of the link in the current message. */
private String currentLinkPosition = "";
/**
* Creates an instance of <tt>ShowPreviewDialog</tt>
*
* @param chatPanel The <tt>ChatConversationPanel</tt> that is associated with this dialog.
*/
ShowPreviewDialog(final ChatConversationPanel chatPanel) {
this.chatPanel = chatPanel;
this.setTitle(
GuiActivator.getResources().getI18NString("service.gui.SHOW_PREVIEW_DIALOG_TITLE"));
okButton = new JButton(GuiActivator.getResources().getI18NString("service.gui.OK"));
cancelButton = new JButton(GuiActivator.getResources().getI18NString("service.gui.CANCEL"));
JPanel mainPanel = new TransparentPanel();
mainPanel.setLayout(new BoxLayout(mainPanel, BoxLayout.Y_AXIS));
mainPanel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
// mainPanel.setPreferredSize(new Dimension(200, 150));
this.getContentPane().add(mainPanel);
JTextPane descriptionMsg = new JTextPane();
descriptionMsg.setEditable(false);
descriptionMsg.setOpaque(false);
descriptionMsg.setText(
GuiActivator.getResources().getI18NString("service.gui.SHOW_PREVIEW_WARNING_DESCRIPTION"));
Icon warningIcon = null;
try {
warningIcon =
new ImageIcon(
ImageIO.read(
GuiActivator.getResources().getImageURL("service.gui.icons.WARNING_ICON")));
} catch (IOException e) {
logger.debug("failed to load the warning icon");
}
JLabel warningSign = new JLabel(warningIcon);
JPanel warningPanel = new TransparentPanel();
warningPanel.setLayout(new BoxLayout(warningPanel, BoxLayout.X_AXIS));
warningPanel.add(warningSign);
warningPanel.add(Box.createHorizontalStrut(10));
warningPanel.add(descriptionMsg);
enableReplacement =
new JCheckBox(
GuiActivator.getResources()
.getI18NString("plugin.chatconfig.replacement.ENABLE_REPLACEMENT_STATUS"));
enableReplacement.setOpaque(false);
enableReplacement.setSelected(cfg.getBoolean(ReplacementProperty.REPLACEMENT_ENABLE, true));
enableReplacementProposal =
new JCheckBox(
GuiActivator.getResources()
.getI18NString("plugin.chatconfig.replacement.ENABLE_REPLACEMENT_PROPOSAL"));
enableReplacementProposal.setOpaque(false);
JPanel checkBoxPanel = new TransparentPanel();
checkBoxPanel.setLayout(new BoxLayout(checkBoxPanel, BoxLayout.Y_AXIS));
checkBoxPanel.add(enableReplacement);
checkBoxPanel.add(enableReplacementProposal);
JPanel buttonsPanel = new TransparentPanel(new FlowLayout(FlowLayout.CENTER));
buttonsPanel.add(okButton);
buttonsPanel.add(cancelButton);
mainPanel.add(warningPanel);
mainPanel.add(Box.createVerticalStrut(10));
mainPanel.add(checkBoxPanel);
mainPanel.add(buttonsPanel);
okButton.addActionListener(this);
cancelButton.addActionListener(this);
this.setPreferredSize(new Dimension(390, 230));
}
@Override
public void actionPerformed(ActionEvent arg0) {
if (arg0.getSource().equals(okButton)) {
cfg.setProperty(ReplacementProperty.REPLACEMENT_ENABLE, enableReplacement.isSelected());
cfg.setProperty(
ReplacementProperty.REPLACEMENT_PROPOSAL, enableReplacementProposal.isSelected());
SwingWorker worker =
new SwingWorker() {
/**
* Called on the event dispatching thread (not on the worker thread) after the <code>
* construct</code> method has returned.
*/
@Override
public void finished() {
String newChatString = (String) get();
if (newChatString != null) {
try {
Element elem = chatPanel.document.getElement(currentMessageID);
chatPanel.document.setOuterHTML(elem, newChatString);
msgIDToChatString.put(currentMessageID, newChatString);
} catch (BadLocationException ex) {
logger.error("Could not replace chat message", ex);
} catch (IOException ex) {
logger.error("Could not replace chat message", ex);
}
}
}
@Override
protected Object construct() throws Exception {
String newChatString = msgIDToChatString.get(currentMessageID);
try {
String originalLink =
msgIDandPositionToLink.get(currentMessageID + "#" + currentLinkPosition);
String replacementLink = linkToReplacement.get(originalLink);
String replacement;
DirectImageReplacementService source =
GuiActivator.getDirectImageReplacementSource();
if (originalLink.equals(replacementLink)
&& (!source.isDirectImage(originalLink)
|| source.getImageSize(originalLink) == -1)) {
replacement = originalLink;
} else {
replacement =
"<IMG HEIGHT=\"90\" WIDTH=\"120\" SRC=\""
+ replacementLink
+ "\" BORDER=\"0\" ALT=\""
+ originalLink
+ "\"></IMG>";
}
String old =
originalLink
+ "</A> <A href=\"jitsi://"
+ ShowPreviewDialog.this.getClass().getName()
+ "/SHOWPREVIEW?"
+ currentMessageID
+ "#"
+ currentLinkPosition
+ "\">"
+ GuiActivator.getResources().getI18NString("service.gui.SHOW_PREVIEW");
newChatString = newChatString.replace(old, replacement);
} catch (Exception ex) {
logger.error("Could not replace chat message", ex);
}
return newChatString;
}
};
worker.start();
this.setVisible(false);
} else if (arg0.getSource().equals(cancelButton)) {
this.setVisible(false);
}
}
@Override
public void chatLinkClicked(URI url) {
String action = url.getPath();
if (action.equals("/SHOWPREVIEW")) {
enableReplacement.setSelected(cfg.getBoolean(ReplacementProperty.REPLACEMENT_ENABLE, true));
enableReplacementProposal.setSelected(
cfg.getBoolean(ReplacementProperty.REPLACEMENT_PROPOSAL, true));
currentMessageID = url.getQuery();
currentLinkPosition = url.getFragment();
this.setVisible(true);
this.setLocationRelativeTo(chatPanel);
}
}
/**
* Returns mapping between messageID and the string representation of the chat message.
*
* @return mapping between messageID and chat string.
*/
Map<String, String> getMsgIDToChatString() {
return msgIDToChatString;
}
/**
* Returns mapping between the pair (messageID, link position) and the actual link in the string
* representation of the chat message.
*
* @return mapping between (messageID, linkPosition) and link.
*/
Map<String, String> getMsgIDandPositionToLink() {
return msgIDandPositionToLink;
}
/**
* Returns mapping between link and replacement for this link that was acquired from it's
* corresponding <tt>ReplacementService</tt>.
*
* @return mapping between link and it's corresponding replacement.
*/
Map<String, String> getLinkToReplacement() {
return linkToReplacement;
}
}
/**
* Implements the {@link ReplacementService} to provide previews for direct image links.
*
* @author Purvesh Sahoo
* @author Marin Dzhigarov
*/
public class ReplacementServiceDirectImageImpl implements DirectImageReplacementService {
/** The logger for this class. */
private static final Logger logger = Logger.getLogger(ReplacementServiceDirectImageImpl.class);
/** The regex used to match the link in the message. */
public static final String URL_PATTERN = "https?\\:\\/\\/(www\\.)*.*\\.(?:jpg|png|gif)";
/** Configuration label shown in the config form. */
public static final String DIRECT_IMAGE_CONFIG_LABEL = "Direct Image Link";
/** Source name; also used as property label. */
public static final String SOURCE_NAME = "DIRECTIMAGE";
/** Maximum allowed size of the image in bytes. The default size is 2MB. */
private long imgMaxSize = 2097152;
/** Configuration property name for maximum allowed size of the image in bytes. */
private static final String MAX_IMG_SIZE =
"net.java.sip.communicator.impl.replacement.directimage.MAX_IMG_SIZE";
/** Constructor for <tt>ReplacementServiceDirectImageImpl</tt>. */
public ReplacementServiceDirectImageImpl() {
setMaxImgSizeFromConf();
logger.trace("Creating a Direct Image Link Source.");
}
/**
* Gets the max allowed size value in bytes from Configuration service and sets the value to
* <tt>imgMaxSize</tt> if succeed. If the configuration property isn't available or the value
* can't be parsed correctly the value of <tt>imgMaxSize</tt> isn't changed.
*/
private void setMaxImgSizeFromConf() {
ConfigurationService configService = DirectImageActivator.getConfigService();
if (configService != null) {
String confImgSizeStr = (String) configService.getProperty(MAX_IMG_SIZE);
try {
if (confImgSizeStr != null) {
imgMaxSize = Long.parseLong(confImgSizeStr);
} else {
configService.setProperty(MAX_IMG_SIZE, imgMaxSize);
}
} catch (NumberFormatException e) {
if (logger.isDebugEnabled())
logger.debug(
"Failed to parse max image size: " + confImgSizeStr + ". Going for default.");
}
}
}
/**
* Returns the thumbnail URL of the image link provided.
*
* @param sourceString the original image link.
* @return the thumbnail image link; the original link in case of no match.
*/
public String getReplacement(String sourceString) {
return sourceString;
}
/**
* Returns the source name
*
* @return the source name
*/
public String getSourceName() {
return SOURCE_NAME;
}
/**
* Returns the pattern of the source
*
* @return the source pattern
*/
public String getPattern() {
return URL_PATTERN;
}
@Override
/**
* Returns the size of the image in bytes.
*
* @param sourceString the image link.
* @return the file size in bytes of the image link provided; -1 if the size isn't available or
* exceeds the max allowed image size.
*/
public int getImageSize(String sourceString) {
int length = -1;
try {
URL url = new URL(sourceString);
String protocol = url.getProtocol();
if (protocol.equals("http") || protocol.equals("https")) {
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
length = connection.getContentLength();
connection.disconnect();
} else if (protocol.equals("ftp")) {
FTPUtils ftp = new FTPUtils(sourceString);
length = ftp.getSize();
ftp.disconnect();
}
if (length > imgMaxSize) {
length = -1;
}
} catch (Exception e) {
logger.debug("Failed to get the length of the image in bytes", e);
}
return length;
}
/**
* Returns true if the content type of the resource pointed by sourceString is an image.
*
* @param sourceString the original image link.
* @return true if the content type of the resource pointed by sourceString is an image.
*/
@Override
public boolean isDirectImage(String sourceString) {
boolean isDirectImage = false;
try {
URL url = new URL(sourceString);
String protocol = url.getProtocol();
if (protocol.equals("http") || protocol.equals("https")) {
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
isDirectImage = connection.getContentType().contains("image");
connection.disconnect();
} else if (protocol.equals("ftp")) {
if (sourceString.endsWith(".png")
|| sourceString.endsWith(".jpg")
|| sourceString.endsWith(".gif")) {
isDirectImage = true;
}
}
} catch (Exception e) {
logger.debug("Failed to retrieve content type information for" + sourceString, e);
}
return isDirectImage;
}
}