/**
* Take the name of a jar file and extract the plugin.xml file, if possible, to a temporary file.
*
* @param f The jar file to extract from.
* @return a temporary file to which the plugin.xml file has been copied.
*/
public static File unpackPluginXML(File f) {
InputStream in = null;
OutputStream out = null;
try {
JarFile jar = new JarFile(f);
ZipEntry entry = jar.getEntry(PLUGIN_XML_FILE);
if (entry == null) {
return null;
}
File dest = File.createTempFile("jabref_plugin", ".xml");
dest.deleteOnExit();
in = new BufferedInputStream(jar.getInputStream(entry));
out = new BufferedOutputStream(new FileOutputStream(dest));
byte[] buffer = new byte[2048];
for (; ; ) {
int nBytes = in.read(buffer);
if (nBytes <= 0) break;
out.write(buffer, 0, nBytes);
}
out.flush();
return dest;
} catch (IOException ex) {
ex.printStackTrace();
return null;
} finally {
try {
if (out != null) out.close();
if (in != null) in.close();
} catch (IOException ex) {
ex.printStackTrace();
}
}
}
/**
* This method deletes a plugin file. If deletion fails - typically happens on Windows due to file
* locking - the file is scheduled for deletion on the next startup.
*
* @param f The file to delete.
* @return true if deletion was successful, false if scheduled for later.
*/
public static boolean deletePluginFile(File f) {
boolean success = f.delete();
if (success) return true;
else {
schedulePluginForDeletion(f.getPath());
return false;
}
}
/**
* Build a list of installed plugins.
*
* @return a list of plugin names and version numbers.
*/
public static EventList<NameAndVersion> findInstalledPlugins() {
EventList<NameAndVersion> plugins = new BasicEventList<NameAndVersion>();
if (!PluginCore.userPluginDir.exists()) return plugins;
String[] files =
PluginCore.userPluginDir.list(
new FilenameFilter() {
public boolean accept(File dir, String name) {
return name.endsWith(".jar");
}
});
HashMap<String, PluginDescriptor> urls = new HashMap<String, PluginDescriptor>();
Collection<PluginDescriptor> descriptors =
PluginCore.getManager().getRegistry().getPluginDescriptors();
for (PluginDescriptor desc : descriptors) {
if ((desc.getPluginClassName() == null)
|| !desc.getPluginClassName().equals("net.sf.jabref.plugin.core.JabRefPlugin")) {
urls.put(desc.getId(), desc);
}
}
for (String file1 : files) {
File file = new File(PluginCore.userPluginDir, file1);
String[] nav = getNameAndVersion(file);
if (nav != null) {
VersionNumber vn = nav[1] != null ? new VersionNumber(nav[1]) : null;
NameAndVersion nameAndVersion = new NameAndVersion(nav[0], vn, true, file);
for (Iterator<String> it = urls.keySet().iterator(); it.hasNext(); ) {
String loc = it.next();
if (loc.contains(nav[0])) {
PluginDescriptor desc = urls.get(loc);
// System.out.println("Accounted for: "+desc.getId()+" "+desc.getVersion().toString());
if (!PluginCore.getManager().isPluginEnabled(urls.get(loc)))
nameAndVersion.setStatus(BAD);
else nameAndVersion.setStatus(LOADED);
it.remove();
}
}
plugins.add(nameAndVersion);
}
}
for (String url : urls.keySet()) {
PluginDescriptor desc = urls.get(url);
File location = new File(desc.getLocation().getFile());
if (location.getPath().contains(PluginCore.userPluginDir.getPath()))
continue; // This must be a loaded user dir plugin that's been deleted.
// System.out.println("File: "+desc.getLocation().getFile());
NameAndVersion nameAndVersion =
new NameAndVersion(
desc.getId(), new VersionNumber(desc.getVersion().toString()), false, location);
if (!PluginCore.getManager().isPluginEnabled(urls.get(url))) nameAndVersion.setStatus(BAD);
else nameAndVersion.setStatus(LOADED);
plugins.add(nameAndVersion);
}
return plugins;
}
/**
* Delete the given files. Refuses to delete files outside the user plugin directory. This method
* throws no errors is the files don't exist or deletion failed.
*
* @param filenames An array of names of the files to be deleted.
*/
public static void deletePluginsOnStartup(String[] filenames) {
for (String s : filenames) {
File f = new File(s);
if (f.getParentFile().equals(PluginCore.userPluginDir)) {
// if (s.startsWith(PluginCore.userPluginDir.getPath())) {
boolean success = f.delete();
} else System.out.println("File outside of user plugin dir: " + s);
}
}
/**
* Look inside a jar file, find the plugin.xml file, and use it to determine the name and version
* of the plugin.
*
* @param f The file to investigate.
* @return A string array containing the plugin name in the first element and the version number
* in the second, or null if the filename couldn't be interpreted.
*/
public static String[] getNameAndVersion(File f) {
try {
File temp = unpackPluginXML(f);
if (temp == null) return null; // Couldn't find the plugin.xml file
ManifestInfo mi =
PluginCore.getManager().getRegistry().readManifestInfo(temp.toURI().toURL());
temp.delete();
return new String[] {mi.getId(), mi.getVersion().toString()};
} catch (MalformedURLException e) {
e.printStackTrace();
return null;
} catch (ManifestProcessingException e) {
return null; // Couldn't make sense of the plugin.xml
}
}
public static int copyPlugin(JFrame frame, File source, String destFileName) {
if (destFileName == null) destFileName = source.getName();
if (!PluginCore.userPluginDir.exists()) {
boolean created = PluginCore.userPluginDir.mkdirs();
if (!created) {
return UNABLE_TO_CREATE_DIR;
}
}
File destFile = new File(PluginCore.userPluginDir, destFileName);
BufferedInputStream in = null;
BufferedOutputStream out = null;
try {
in = new BufferedInputStream(new FileInputStream(source));
out = new BufferedOutputStream(new FileOutputStream(destFile));
byte[] buf = new byte[1024];
int count;
while ((count = in.read(buf, 0, buf.length)) > 0) {
out.write(buf, 0, count);
}
} catch (IOException ex) {
ex.printStackTrace();
return UNABLE_TO_COPY_FILE;
} finally {
if (in != null) {
try {
in.close();
} catch (IOException ignore) {
// UNABLE_TO_COPY_FILE;
}
}
if (out != null) {
try {
out.close();
} catch (IOException ignore) {
// UNABLE_TO_COPY_FILE;
}
}
}
return SUCCESS;
}
public static void installPlugin(JabRefFrame frame, File file, String targetFileName) {
String fileName = targetFileName != null ? targetFileName : file.getName();
if (!PluginCore.userPluginDir.exists()) {
boolean created = PluginCore.userPluginDir.mkdirs();
if (!created) {
JOptionPane.showMessageDialog(
frame,
Globals.lang("Unable to create plugin directory")
+ " ("
+ PluginCore.userPluginDir.getPath()
+ ").",
Globals.lang("Plugin installer"),
JOptionPane.ERROR_MESSAGE);
return;
}
}
int status = checkInstalledVersion(file);
int result;
switch (status) {
case NO_VERSIONS_INSTALLED:
result = copyPlugin(frame, file, fileName);
if (result == SUCCESS)
JOptionPane.showMessageDialog(
frame,
Globals.lang(
"Plugin installed successfully. You must restart JabRef to load the new plugin."),
Globals.lang("Plugin installer"),
JOptionPane.INFORMATION_MESSAGE);
else {
String reason;
if (result == UNABLE_TO_COPY_FILE) reason = Globals.lang("Unable to copy file");
else
reason =
Globals.lang("Unable to create user plugin directory")
+ " ("
+ PluginCore.userPluginDir.getPath()
+ ").";
JOptionPane.showMessageDialog(
frame,
Globals.lang("Plugin installation failed.") + " " + reason,
Globals.lang("Plugin installer"),
JOptionPane.ERROR_MESSAGE);
}
break;
case SAME_VERSION_INSTALLED:
JOptionPane.showMessageDialog(
frame,
Globals.lang("The same version of this plugin is already installed."),
Globals.lang("Plugin installer"),
JOptionPane.INFORMATION_MESSAGE);
break;
case NEWER_VERSION_INSTALLED:
JOptionPane.showMessageDialog(
frame,
Globals.lang("A newer version of this plugin is already installed."),
Globals.lang("Plugin installer"),
JOptionPane.INFORMATION_MESSAGE);
break;
case OLDER_VERSION_INSTALLED:
result = copyPlugin(frame, file, fileName);
if (result == SUCCESS) {
int answer =
JOptionPane.showConfirmDialog(
frame,
Globals.lang(
"One or more older versions of this plugin is installed. Delete old versions?"),
Globals.lang("Plugin installer"),
JOptionPane.YES_NO_OPTION);
if (answer == JOptionPane.YES_OPTION) {
boolean success = deleteOlderVersions(file);
if (success) {
JOptionPane.showMessageDialog(
frame,
Globals.lang("Old versions deleted successfully."),
Globals.lang("Plugin installer"),
JOptionPane.INFORMATION_MESSAGE);
} else {
JOptionPane.showMessageDialog(
frame,
Globals.lang("Old plugin versions will be deleted next time JabRef starts up."),
Globals.lang("Plugin installer"),
JOptionPane.INFORMATION_MESSAGE);
}
}
} else {
String reason;
if (result == UNABLE_TO_COPY_FILE) reason = Globals.lang("Unable to copy file");
else
reason =
Globals.lang("Unable to create user plugin directory")
+ " ("
+ PluginCore.userPluginDir.getPath()
+ ").";
JOptionPane.showMessageDialog(
frame,
Globals.lang("Plugin installation failed.") + " " + reason,
Globals.lang("Plugin installer"),
JOptionPane.ERROR_MESSAGE);
}
break;
// case UNKNOWN_VERSION:
// JOptionPane.showMessageDialog(frame, Globals.lang("Could not determine version of "));
// break;
case UNKNOWN_VERSION:
JLabel lab =
new JLabel(
"<html>"
+ Globals.lang(
"Unable to determine plugin name and "
+ "version. This may not be a valid JabRef plugin.")
+ "<br>"
+ Globals.lang("Install anyway?")
+ "</html>");
int answer =
JOptionPane.showConfirmDialog(
frame, lab, Globals.lang("Plugin installer"), JOptionPane.YES_NO_OPTION);
if (answer == JOptionPane.YES_OPTION) {
result = copyPlugin(frame, file, fileName);
if (result == SUCCESS)
JOptionPane.showMessageDialog(
frame,
Globals.lang(
"Plugin installed successfully. You must restart JabRef to load the new plugin."),
Globals.lang("Plugin installer"),
JOptionPane.INFORMATION_MESSAGE);
else {
String reason;
if (result == UNABLE_TO_COPY_FILE) reason = Globals.lang("Unable to copy file");
else
reason =
Globals.lang("Unable to create user plugin directory")
+ " ("
+ PluginCore.userPluginDir.getPath()
+ ").";
JOptionPane.showMessageDialog(
frame,
Globals.lang("Plugin installation failed.") + " " + reason,
Globals.lang("Plugin installer"),
JOptionPane.ERROR_MESSAGE);
}
}
break;
}
}
