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/*
* IzPack - Copyright 2001-2012 Julien Ponge, All Rights Reserved.
*
* http://izpack.org/
* http://izpack.codehaus.org/
*
* Copyright 2007 Dennis Reil
* Copyright 2012 Tim Anderson
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.izforge.izpack.installer.unpacker;
import com.izforge.izpack.api.data.*;
import com.izforge.izpack.api.event.InstallerListener;
import com.izforge.izpack.api.event.ProgressListener;
import com.izforge.izpack.api.exception.InstallerException;
import com.izforge.izpack.api.exception.IzPackException;
import com.izforge.izpack.api.exception.ResourceInterruptedException;
import com.izforge.izpack.api.handler.AbstractPrompt;
import com.izforge.izpack.api.handler.AbstractUIHandler;
import com.izforge.izpack.api.handler.Prompt;
import com.izforge.izpack.api.resource.Messages;
import com.izforge.izpack.api.resource.Resources;
import com.izforge.izpack.api.rules.RulesEngine;
import com.izforge.izpack.api.substitutor.VariableSubstitutor;
import com.izforge.izpack.core.handler.ProgressHandler;
import com.izforge.izpack.core.handler.PromptUIHandler;
import com.izforge.izpack.data.ExecutableFile;
import com.izforge.izpack.data.ParsableFile;
import com.izforge.izpack.data.UpdateCheck;
import com.izforge.izpack.installer.bootstrap.Installer;
import com.izforge.izpack.installer.data.UninstallData;
import com.izforge.izpack.installer.event.InstallerListeners;
import com.izforge.izpack.installer.util.PackHelper;
import com.izforge.izpack.util.FileExecutor;
import com.izforge.izpack.util.Housekeeper;
import com.izforge.izpack.util.IoHelper;
import com.izforge.izpack.util.PlatformModelMatcher;
import com.izforge.izpack.util.file.DirectoryScanner;
import com.izforge.izpack.util.file.GlobPatternMapper;
import com.izforge.izpack.util.file.types.FileSet;
import com.izforge.izpack.util.os.FileQueue;
import org.apache.commons.io.IOUtils;
import java.io.*;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.*;
import java.util.jar.Pack200;
import java.util.logging.Level;
import java.util.logging.Logger;
import static com.izforge.izpack.api.handler.Prompt.*;
import static com.izforge.izpack.installer.bootstrap.Installer.INSTALLER_AUTO;
/**
* Abstract base class for all unpacker implementations.
*
* @author Dennis Reil,
* @author Tim Anderson
*/
public abstract class UnpackerBase implements IUnpacker
{
/**
* The installation data.
*/
private final InstallData installData;
/**
* The uninstallation data.
*/
private final UninstallData uninstallData;
/**
* The pack resources.
*/
private final PackResources resources;
/**
* The rules engine.
*/
private final RulesEngine rules;
/**
* The variable replacer.
*/
private final VariableSubstitutor variableSubstitutor;
/**
* The file queue factory.
*/
private final FileQueueFactory queueFactory;
/**
* The housekeeper.
*/
private final Housekeeper housekeeper;
/**
* The listeners.
*/
private final InstallerListeners listeners;
/**
* The installer listener.
*/
private ProgressListener listener;
/**
* The absolute path of the source installation jar.
*/
private File absoluteInstallSource;
/**
* The Pack200 unpacker.
*/
private Pack200.Unpacker unpacker;
/**
* The prompt.
*/
private final Prompt prompt;
/**
* The platform-model matcher.
*/
private final PlatformModelMatcher matcher;
/**
* The result of the operation.
*/
private boolean result = true;
/**
* Determines if unpack operations should be cancelled.
*/
private final Cancellable cancellable;
/**
* The unpacking state.
*/
private enum State
{
READY, UNPACKING, INTERRUPT, INTERRUPTED
}
/**
* The current unpacking state.
*/
private State state = State.READY;
/**
* If true, prevent interrupts.
*/
private boolean disableInterrupt = false;
/**
* Translation cache for packs
*/
private Messages packMessages;
/**
* The logger.
*/
private static final Logger logger = Logger.getLogger(UnpackerBase.class.getName());
/**
* Constructs an UnpackerBase.
*
* @param installData the installation data
* @param resources the pack resources
* @param rules the rules engine
* @param variableSubstitutor the variable substituter
* @param uninstallData the uninstallation data
* @param factory the file queue factory
* @param housekeeper the housekeeper
* @param listeners the listeners
* @param prompt the prompt
* @param matcher the platform-model matcher
*/
public UnpackerBase(InstallData installData, PackResources resources, RulesEngine rules,
VariableSubstitutor variableSubstitutor, UninstallData uninstallData, FileQueueFactory factory,
Housekeeper housekeeper, InstallerListeners listeners, Prompt prompt,
PlatformModelMatcher matcher)
{
this.installData = installData;
this.resources = resources;
this.rules = rules;
this.variableSubstitutor = variableSubstitutor;
this.uninstallData = uninstallData;
this.queueFactory = factory;
this.housekeeper = housekeeper;
this.listeners = listeners;
this.prompt = prompt;
this.matcher = matcher;
cancellable = new Cancellable()
{
@Override
public boolean isCancelled()
{
return isInterrupted();
}
};
}
/**
* Sets the progress listener.
*
* @param listener the progress listener
*/
@Override
public void setProgressListener(ProgressListener listener)
{
this.listener = listener;
}
/**
* Runs the unpacker.
*/
public void run()
{
unpack();
}
/**
* Unpacks the installation files.
*/
public void unpack()
{
state = State.UNPACKING;
try
{
FileQueue queue = queueFactory.isSupported() ? queueFactory.create() : null;
List packs = installData.getSelectedPacks();
preUnpack(packs);
unpack(packs, queue);
postUnpack(packs, queue);
}
catch (Exception exception)
{
setResult(false);
logger.log(Level.SEVERE, exception.getMessage(), exception);
Messages messages = installData.getMessages();
listener.stopAction();
if (exception instanceof ResourceInterruptedException)
{
prompt.message(Type.INFORMATION, messages.get("installer.cancelled"));
}
else
{
IzPackException ize;
if (exception instanceof InstallerException)
{
InstallerException ie = (InstallerException) exception;
Throwable t = ie.getCause();
ize = new IzPackException(messages.get("installer.errorMessage"),
t != null ? t : exception);
}
else if (exception instanceof IzPackException)
{
ize = (IzPackException)exception;
}
else
{
ize = new IzPackException(exception.getMessage(), exception);
}
switch (ize.getPromptType())
{
case ERROR:
prompt.message(ize);
break;
case WARNING:
AbstractUIHandler handler = new PromptUIHandler(prompt);
if (handler.askWarningQuestion(null,
AbstractPrompt.getThrowableMessage(ize) + "\n" + messages.get("installer.continueQuestion"),
AbstractUIHandler.CHOICES_YES_NO,
AbstractUIHandler.ANSWER_NO)
== AbstractUIHandler.ANSWER_YES)
{
return;
}
break;
default:
break;
}
}
housekeeper.shutDown(4);
}
finally
{
cleanup();
}
}
/**
* Return the state of the operation.
*
* @return true if the operation was successful, false otherwise.
*/
public boolean getResult()
{
return result;
}
/**
* Interrupts the unpacker, and waits for it to complete.
*
* If interrupts have been prevented ({@link #isInterruptDisabled} returns true), then this
* returns immediately.
*
* @param timeout the maximum time to wait, in milliseconds
* @return true if the interrupt will be performed, false if the interrupt will be discarded
*/
@Override
public boolean interrupt(long timeout)
{
boolean result;
if (isInterruptDisabled())
{
result = false;
}
else
{
synchronized (this)
{
if (state != State.READY && state != State.INTERRUPTED)
{
state = State.INTERRUPT;
try
{
wait(timeout);
}
catch (InterruptedException ignore)
{
// do nothing
}
result = state == State.INTERRUPTED;
}
else
{
result = true;
}
}
}
return result;
}
/**
* Determines if interrupts should be disabled.
*
* @param disable if true disable interrupts, otherwise enable them
*/
@Override
public synchronized void setDisableInterrupt(boolean disable)
{
if (state == State.INTERRUPT || state == State.INTERRUPTED)
{
throw new IllegalStateException("Cannot disable interrupts. Unpacking has already been interrupted");
}
disableInterrupt = disable;
}
/**
* Determines if interrupts have been disabled or not.
*
* @return true if interrupts have been disabled, otherwise false
*/
public synchronized boolean isInterruptDisabled()
{
return disableInterrupt;
}
/**
* Invoked prior to unpacking.
*
* This notifies the {@link #getProgressListener listener}, and any registered {@link InstallerListener listeners}.
*
* @param packs the packs to unpack
* @throws InstallerException for any error
*/
protected void preUnpack(List packs) throws InstallerException
{
logger.fine("Unpacker starting");
listener.startAction("Unpacking", packs.size());
listeners.beforePacks(packs, listener);
}
/**
* Unpacks the selected packs.
*
* @param packs the packs to unpack
* @param queue the file queue, or {@code null} if queuing is not supported
* @throws ResourceInterruptedException if unpacking is cancelled
* @throws InstallerException for any error
*/
protected void unpack(List packs, FileQueue queue) throws InstallerException
{
int count = packs.size();
for (int i = 0; i < count; i++)
{
Pack pack = packs.get(i);
if (shouldUnpack(pack))
{
List parsables = new ArrayList();
List executables = new ArrayList();
List updateChecks = new ArrayList();
listeners.beforePack(pack, i, listener);
unpack(pack, i, queue, parsables, executables, updateChecks);
checkInterrupt();
logger.fine("Found " + parsables.size() + " parsable files");
parseFiles(parsables);
checkInterrupt();
logger.fine("Found " + executables.size() + " executable files");
executeFiles(executables);
checkInterrupt();
// update checks should be done _after_ uninstaller was put, so we don't delete it. TODO
performUpdateChecks(updateChecks);
checkInterrupt();
listeners.afterPack(pack, i, listener);
}
}
}
/**
* Unpacks a pack.
*
* @param pack the pack to unpack
* @param packNo the pack number
* @param queue the file queue, or {@code null} if queuing is not supported
* @param parsables used to collect parsable files in the pack
* @param executables used to collect executable files files in the pack
* @param updateChecks used to collect update checks in the pack
* @throws IzPackException for any error
*/
protected void unpack(Pack pack, int packNo, FileQueue queue, List parsables,
List executables, List updateChecks)
{
InputStream in = null;
ObjectInputStream packInputStream = null;
try
{
in = resources.getPackStream(pack.getName());
packInputStream = new ObjectInputStream(in);
int fileCount = packInputStream.readInt();
String stepName = getStepName(pack);
listener.nextStep(stepName, packNo + 1, fileCount);
for (int i = 0; i < fileCount; ++i)
{
// read the header
PackFile file = (PackFile) packInputStream.readObject();
if (shouldUnpack(file))
{
// unpack the file
unpack(file, packInputStream, i, pack, queue);
}
else
{
// condition is not fulfilled, so skip it
skip(file, pack, packInputStream);
}
}
readParsableFiles(packInputStream, parsables);
readExecutableFiles(packInputStream, executables);
readUpdateChecks(packInputStream, updateChecks);
}
catch (IzPackException exception)
{
throw exception;
}
catch (Exception exception)
{
throw new InstallerException("Failed to unpack pack: " + pack.getName(), exception);
}
finally
{
IOUtils.closeQuietly(packInputStream);
IOUtils.closeQuietly(in);
}
}
/**
* Determines if a file should be unpacked.
*
* @param file the file to check
* @return {@code true} if the file should be unpacked; {@code false} if it should be skipped
*/
private boolean shouldUnpack(PackFile file)
{
boolean result = true;
if (file.hasCondition())
{
result = isConditionTrue(file.getCondition());
}
if (result && file.osConstraints() != null && !file.osConstraints().isEmpty())
{
result = matcher.matchesCurrentPlatform(file.osConstraints());
}
return result;
}
/**
* Unpacks a pack file.
*
* @param file the pack file
* @param packInputStream the pack file input stream
* @param fileNo the pack file number
* @param pack the pack that the pack file comes from
* @param queue the file queue, or {@code null} if queuing is not supported
* @throws IOException for any I/O error
* @throws IzPackException for any other error
*/
protected void unpack(PackFile file, ObjectInputStream packInputStream, int fileNo, Pack pack, FileQueue queue)
throws IOException
{
if (logger.isLoggable(Level.FINE))
{
logger.fine("Unpack " + file.getTargetPath());
}
// translate & build the path
Variables variables = getInstallData().getVariables();
String path = IoHelper.translatePath(file.getTargetPath(), variables);
File target = new File(path);
File dir = target;
if (!file.isDirectory())
{
dir = target.getParentFile();
}
createDirectory(dir, file, pack);
// Add path to the log
getUninstallData().addFile(path, pack.isUninstall());
if (file.isDirectory())
{
return;
}
listeners.beforeFile(target, file, pack);
listener.progress(fileNo, path);
// if this file exists and should not be overwritten, check what to do
if (target.exists() && (file.override() != OverrideType.OVERRIDE_TRUE) && !isOverwriteFile(file, target))
{
if (!file.isBackReference() && !pack.isLoose())
{
if (file.isPack200Jar())
{
skip(packInputStream, Integer.SIZE / 8);
}
else
{
skip(packInputStream, file.length());
}
}
}
else
{
handleOverrideRename(file, target);
extract(file, target, packInputStream, pack, queue);
}
}
/**
* Extracts a pack file.
*
* @param file the pack file
* @param target the file to write to
* @param packInputStream the pack file input stream
* @param pack the pack that the pack file comes from
* @param queue the file queue, or {@code null} if queuing is not supported
* @throws IOException for any I/O error
* @throws ResourceInterruptedException if installation is cancelled
* @throws IzPackException for any IzPack error
*/
protected void extract(PackFile file, File target, ObjectInputStream packInputStream, Pack pack, FileQueue queue)
throws IOException
{
ObjectInputStream packStream = packInputStream;
InputStream in = null;
try
{
FileUnpacker unpacker;
if (!pack.isLoose() && file.isBackReference())
{
in = resources.getPackStream(file.previousPackId);
packStream = new ObjectInputStream(in);
// must wrap for blockdata use by ObjectStream (otherwise strange result)
// skip on underlying stream (for some reason not possible on ObjectStream)
skip(in, file.offsetInPreviousPack - 4);
// but the stream header is now already read (== 4 bytes)
}
unpacker = createFileUnpacker(file, pack, queue, cancellable);
unpacker.unpack(file, packStream, target);
checkInterrupt();
if (!unpacker.isQueued())
{
listeners.afterFile(target, file, pack);
}
}
finally
{
IOUtils.closeQuietly(in);
if (packStream != packInputStream)
{
IOUtils.closeQuietly(packStream);
}
}
}
/**
* Skips a pack file.
*
* @param file the pack file
* @param pack the pack
* @param packInputStream the pack stream
* @throws IOException if the file cannot be skipped
*/
protected void skip(PackFile file, Pack pack, ObjectInputStream packInputStream) throws IOException
{
if (logger.isLoggable(Level.FINE))
{
logger.fine("Skip " + file.getTargetPath());
}
if (!pack.isLoose() && !file.isBackReference())
{
skip(packInputStream, file.length());
}
}
/**
* Creates an unpacker to unpack a pack file.
*
* @param file the pack file to unpack
* @param pack the parent pack
* @param queue the file queue. May be {@code null}
* @param cancellable determines if the unpacker should be cancelled
* @return the unpacker
* @throws IOException for any I/O error
* @throws InstallerException for any installer error
*/
protected FileUnpacker createFileUnpacker(PackFile file, Pack pack, FileQueue queue, Cancellable cancellable)
throws IOException, InstallerException
{
FileUnpacker unpacker;
if (pack.isLoose())
{
unpacker = new LooseFileUnpacker(getAbsoluteInstallSource(), cancellable, queue, prompt);
}
else if (file.isPack200Jar())
{
unpacker = new Pack200FileUnpacker(cancellable, resources, getPack200Unpacker(), queue);
}
else
{
unpacker = new DefaultFileUnpacker(cancellable, queue);
}
return unpacker;
}
/**
* Invoked after each pack has been unpacked.
*
* @param packs the packs
* @param queue the file queue, or {@code null} if queuing is not supported
* @throws ResourceInterruptedException if installation is cancelled
* @throws IOException for any I/O error
*/
protected void postUnpack(List packs, FileQueue queue) throws IOException, InstallerException
{
InstallData installData = getInstallData();
// commit the file queue if there are potentially blocked files
if (queue != null && !queue.isEmpty())
{
queue.execute();
installData.setRebootNecessary(queue.isRebootNecessary());
}
checkInterrupt();
listeners.afterPacks(packs, listener);
checkInterrupt();
// write installation information
writeInstallationInformation();
// unpacking complete
listener.stopAction();
}
/**
* Invoked after unpacking has completed, in order to clean up.
*/
protected void cleanup()
{
state = State.READY;
}
/**
* Returns the installation data.
*
* @return the installation data
*/
protected InstallData getInstallData()
{
return installData;
}
/**
* Returns the uninstallation data.
*
* @return the uninstallation data
*/
protected UninstallData getUninstallData()
{
return uninstallData;
}
/**
* Returns the pack resources.
*
* @return the pack resources
*/
protected PackResources getResources()
{
return resources;
}
/**
* Returns the variable replacer.
*
* @return the variable replacer
*/
protected VariableSubstitutor getVariableSubstitutor()
{
return variableSubstitutor;
}
/**
* Returns the progress listener.
*
* @return the progress listener
*/
protected ProgressListener getProgressListener()
{
return listener;
}
/**
* Returns the prompt.
*
* @return the prompt
*/
protected Prompt getPrompt()
{
return prompt;
}
/**
* Determines if a pack should be unpacked.
*
* @param pack the pack
* @return true if the pack should be unpacked, false if it should be skipped
*/
protected boolean shouldUnpack(Pack pack)
{
boolean result = true;
if (pack.hasCondition())
{
result = rules.isConditionTrue(pack.getCondition());
}
return result;
}
/**
* Sets the result of the unpacking operation.
*
* @param result if true denotes success
*/
protected void setResult(boolean result)
{
this.result = result;
}
protected boolean isConditionTrue(String id)
{
return rules.isConditionTrue(id);
}
/**
* Returns the step name for a pack, for reporting purposes.
*
* @param pack the pack
* @return the pack's step name
*/
protected String getStepName(Pack pack)
{
if (packMessages == null)
{
Messages messages = installData.getMessages();
if (messages != null)
{
try {
packMessages = messages.newMessages(Resources.PACK_TRANSLATIONS_RESOURCE_NAME);
} catch (Exception ex){
logger.fine(ex.getLocalizedMessage());
}
}
}
// hide pack name if it is hidden
return pack.isHidden() ? "" : PackHelper.getPackName(pack, packMessages);
}
/**
* Creates a directory including any necessary but nonexistent parent directories, associated with a pack file.
*
* If {@link InstallerListener}s are registered, these will be notified for each directory created.
*
* @param dir the directory to create
* @param file the pack file
* @param pack the pack that {@code file} comes from
* @throws IzPackException if the directory cannot be created or a listener throws an exception
*/
protected void createDirectory(File dir, PackFile file, Pack pack)
{
if (!dir.exists())
{
if (!listeners.isFileListener())
{
// Create it in one step.
if (!dir.mkdirs())
{
throw new IzPackException("Could not create directory: " + dir.getPath());
}
}
else
{
File parent = dir.getParentFile();
if (parent != null)
{
createDirectory(parent, file, pack);
}
listeners.beforeDir(dir, file, pack);
if (!dir.mkdir())
{
throw new IzPackException("Could not create directory: " + dir.getPath());
}
listeners.afterDir(dir, file, pack);
}
}
}
/**
* Parses {@link ParsableFile} instances collected during unpacking.
*
* @param files the files to parse
* @throws InstallerException if parsing fails
* @throws ResourceInterruptedException if installation is interrupted
*/
private void parseFiles(List files)
{
if (!files.isEmpty())
{
ScriptParser parser = new ScriptParser(getVariableSubstitutor(), matcher);
for (ParsableFile file : files)
{
try
{
parser.parse(file);
}
catch (Exception exception)
{
throw new InstallerException("Failed to parse: " + file.getPath(), exception);
}
checkInterrupt();
}
}
}
/**
* Runs {@link ExecutableFile} instances collected during unpacking.
*
* @param executables the executables to run
* @throws InstallerException if an executable fails
*/
private void executeFiles(List executables)
{
if (!executables.isEmpty())
{
FileExecutor executor = new FileExecutor(executables);
PromptUIHandler handler = new ProgressHandler(listener, prompt);
if (executor.executeFiles(ExecutableFile.POSTINSTALL, matcher, handler) != 0)
{
throw new InstallerException("File execution failed");
}
}
}
/**
* Determines if the unpacker has been interrupted.
*
* @return true if the unpacker has been interrupted, otherwise false
*/
protected synchronized boolean isInterrupted()
{
boolean result = false;
if (state == State.INTERRUPT)
{
setResult(false);
state = State.INTERRUPTED;
result = true;
notifyAll(); // notify threads waiting in interrupt()
}
else
{
if (state == State.INTERRUPTED)
{
result = true;
}
}
return result;
}
/**
* Throws an {@link ResourceInterruptedException} if installation has been interrupted.
*
* @throws ResourceInterruptedException if installation is interrupted
*/
protected void checkInterrupt()
{
if (isInterrupted())
{
throw new ResourceInterruptedException("Installation cancelled");
}
}
/**
* Performs update checks.
*
* @param checks the update checks. May be {@code null}
* @throws IzPackException for any error
*/
protected void performUpdateChecks(List checks)
{
if (checks != null && !checks.isEmpty())
{
logger.info("Cleaning up the target folder ...");
File absoluteInstallPath = new File(installData.getInstallPath()).getAbsoluteFile();
FileSet fileset = new FileSet();
List filesToDelete = new ArrayList();
List dirsToDelete = new ArrayList();
try
{
fileset.setDir(absoluteInstallPath);
for (UpdateCheck check : checks)
{
if (check.includesList != null)
{
for (String include : check.includesList)
{
fileset.createInclude().setName(variableSubstitutor.substitute(include));
}
}
if (check.excludesList != null)
{
for (String exclude : check.excludesList)
{
fileset.createExclude().setName(variableSubstitutor.substitute(exclude));
}
}
}
DirectoryScanner scanner = fileset.getDirectoryScanner();
scanner.scan();
String[] srcFiles = scanner.getIncludedFiles();
String[] srcDirs = scanner.getIncludedDirectories();
Set installedFiles = new TreeSet();
for (String name : uninstallData.getInstalledFilesList())
{
File file = new File(name);
if (!file.isAbsolute())
{
file = new File(absoluteInstallPath, name);
}
installedFiles.add(file);
}
for (String srcFile : srcFiles)
{
File newFile = new File(scanner.getBasedir(), srcFile);
// skip files we just installed
if (!installedFiles.contains(newFile))
{
filesToDelete.add(newFile);
}
}
for (String srcDir : srcDirs)
{
// All directories except INSTALL_PATH
if (!srcDir.isEmpty())
{
File newDir = new File(scanner.getBasedir(), srcDir);
// skip directories we just installed
if (!installedFiles.contains(newDir))
{
dirsToDelete.add(newDir);
}
}
}
}
catch (IzPackException exception)
{
throw exception;
}
catch (Exception exception)
{
throw new IzPackException(exception);
}
for (File f : filesToDelete)
{
if (!f.delete())
{
logger.warning("Cleanup: Unable to delete file " + f);
}
else
{
logger.fine("Cleanup: Deleted file " + f);
}
}
// Sort directories, deepest path first to be able to
// delete recursively
Collections.sort(dirsToDelete);
Collections.reverse(dirsToDelete);
for (File d : dirsToDelete)
{
if (!d.exists())
{
break;
}
// Don't try to delete non-empty directories, because they
// probably must have been implicitly created as parents
// of regular installation files
File[] files = d.listFiles();
if (files != null && files.length != 0)
{
break;
}
// Only empty directories will be deleted
if (!d.delete())
{
logger.warning("Cleanup: Unable to delete directory " + d);
}
else
{
logger.fine("Cleanup: Deleted directory " + d);
}
}
}
}
/**
* Writes information about the installed packs and the variables at installation time.
*
* @throws InstallerException for any installer error
* @throws IOException for any I/O error
*/
protected void writeInstallationInformation() throws IOException
{
if (!installData.getInfo().isWriteInstallationInformation())
{
logger.fine("Skip writing installation information");
return;
}
logger.fine("Writing installation information");
String installDir = installData.getInstallPath();
List installedPacks = new ArrayList(installData.getSelectedPacks());
File installationInfo = new File(installDir + File.separator + InstallData.INSTALLATION_INFORMATION);
if (!installationInfo.exists())
{
logger.fine("Creating info file " + installationInfo.getAbsolutePath());
File dir = new File(installData.getInstallPath());
if (!dir.exists())
{
// if no packs have been installed, then the installation directory won't exist
if (!dir.mkdirs())
{
throw new InstallerException("Failed to create directory: " + dir);
}
}
if (!installationInfo.createNewFile())
{
throw new InstallerException("Failed to create file: " + installationInfo);
}
}
else
{
logger.fine("Previous installation information found");
// read in old information and update
FileInputStream fin = new FileInputStream(installationInfo);
ObjectInputStream oin = new ObjectInputStream(fin);
List packs;
try
{
packs = (List) oin.readObject();
}
catch (Exception exception)
{
throw new InstallerException("Failed to read previous installation information", exception);
}
finally
{
IOUtils.closeQuietly(oin);
IOUtils.closeQuietly(fin);
}
for (Pack pack : packs)
{
installedPacks.add(pack);
}
}
FileOutputStream fout = new FileOutputStream(installationInfo);
ObjectOutputStream oout = new ObjectOutputStream(fout);
oout.writeObject(installedPacks);
oout.writeObject(installData.getVariables().getProperties());
logger.fine("Writing installation information finished");
IOUtils.closeQuietly(oout);
IOUtils.closeQuietly(fout);
uninstallData.addFile(installationInfo.getAbsolutePath(), true);
}
protected File getAbsoluteInstallSource() throws IOException, InstallerException
{
if (absoluteInstallSource == null)
{
URI uri;
try
{
uri = getClass().getProtectionDomain().getCodeSource().getLocation().toURI();
}
catch (URISyntaxException exception)
{
throw new InstallerException(exception);
}
if (!"file".equals(uri.getScheme()))
{
throw new InstallerException("Unexpected scheme in JAR file URI: " + uri);
}
absoluteInstallSource = new File(uri.getSchemeSpecificPart()).getAbsoluteFile();
if (absoluteInstallSource.getName().endsWith(".jar"))
{
absoluteInstallSource = absoluteInstallSource.getParentFile();
}
}
return absoluteInstallSource;
}
/**
* Skips bytes in a stream.
*
* @param stream the stream
* @param bytes the no. of bytes to skip
* @throws IOException for any I/O error, or if the no. of bytes skipped doesn't match that expected
*/
protected void skip(InputStream stream, long bytes) throws IOException
{
long skipped = stream.skip(bytes);
if (skipped != bytes)
{
throw new IOException("Expected to skip: " + bytes + " in stream but skipped: " + skipped);
}
}
/**
* Determines if a file should be overwritten.
*
* @param pf the pack file
* @param file the file to check
* @return {@code true} if the file should be overwritten
*/
protected boolean isOverwriteFile(PackFile pf, File file)
{
boolean result = false;
// don't overwrite file if the user said so
if (pf.override() != OverrideType.OVERRIDE_FALSE)
{
if (pf.override() == OverrideType.OVERRIDE_TRUE)
{
result = true;
}
else
{
if (pf.override() == OverrideType.OVERRIDE_UPDATE)
{
// check mtime of involved files
// (this is not 100% perfect, because the
// already existing file might
// still be modified but the new installed
// is just a bit newer; we would
// need the creation time of the existing
// file or record with which mtime
// it was installed...)
result = (file.lastModified() < pf.lastModified());
}
else
{
Option defChoice = null;
if (pf.override() == OverrideType.OVERRIDE_ASK_FALSE)
{
defChoice = Option.NO;
}
else if (pf.override() == OverrideType.OVERRIDE_ASK_TRUE)
{
defChoice = Option.YES;
}
// are we running in automated mode? If so use default choice.
if (Installer.getInstallerMode() == INSTALLER_AUTO)
{
result = (defChoice == Option.YES);
}
else // ask the user
{
Messages messages = installData.getMessages();
Option answer = prompt.confirm(Type.QUESTION,
messages.get("InstallPanel.overwrite.title") + " - " + file.getName(),
messages.get("InstallPanel.overwrite.question") + file.getAbsolutePath(),
Options.YES_NO, defChoice);
result = (answer == Option.YES);
}
}
}
}
return result;
}
/**
* Renames a file, if it exists and the pack file defines how it should be handled.
*
* @param pf the pack file
* @param file the file to rename
* @throws InstallerException if the file cannot be renamed
*/
protected void handleOverrideRename(PackFile pf, File file)
{
if (file.exists() && pf.overrideRenameTo() != null)
{
GlobPatternMapper mapper = new GlobPatternMapper();
mapper.setFrom("*");
mapper.setTo(pf.overrideRenameTo());
mapper.setCaseSensitive(true);
String[] newFileNameArr = mapper.mapFileName(file.getName());
if (newFileNameArr != null)
{
String newFileName = newFileNameArr[0];
File newPathFile = new File(file.getParent(), newFileName);
if (newPathFile.exists())
{
if (!newPathFile.delete())
{
logger.warning("Failed to delete: " + newPathFile);
}
}
if (!file.renameTo(newPathFile))
{
throw new InstallerException("The file " + file + " could not be renamed to " + newPathFile);
}
}
else
{
throw new InstallerException("File name " + file.getName() + " cannot be mapped using the expression \""
+ pf.overrideRenameTo() + "\"");
}
}
}
/**
* Reads {@link ParsableFile parseable files} from the supplied stream.
*
* @param stream the stream to read from
* @param parsables used to collect the read objects
* @throws IOException for any I/O error
* @throws ClassNotFoundException if the class of a serialised object cannot be found
*/
protected void readParsableFiles(ObjectInputStream stream, List parsables)
throws IOException, ClassNotFoundException
{
int count = stream.readInt();
for (int i = 0; i < count; ++i)
{
ParsableFile file = (ParsableFile) stream.readObject();
logger.fine("Unpacked parsable: " + file.toString());
if (!file.hasCondition() || isConditionTrue(file.getCondition()))
{
String path = IoHelper.translatePath(file.getPath(), installData.getVariables());
file.setPath(path);
parsables.add(file);
}
}
}
/**
* Reads {@link ExecutableFile executable files} from the supplied stream.
*
* @param stream the stream to read from
* @param executables used to collect the read objects
* @throws IOException for any I/O error
* @throws ClassNotFoundException if the class of a serialised object cannot be found
*/
protected void readExecutableFiles(ObjectInputStream stream, List executables)
throws IOException, ClassNotFoundException
{
// Load information about executable files
int count = stream.readInt();
for (int i = 0; i < count; ++i)
{
ExecutableFile file = (ExecutableFile) stream.readObject();
logger.fine("Unpacked executable: " + file.toString());
if (!file.hasCondition() || isConditionTrue(file.getCondition()))
{
Variables variables = installData.getVariables();
file.path = IoHelper.translatePath(file.path, variables);
if (null != file.argList && !file.argList.isEmpty())
{
for (int j = 0; j < file.argList.size(); j++)
{
String arg = file.argList.get(j);
arg = IoHelper.translatePath(arg, variables);
file.argList.set(j, arg);
}
}
executables.add(file);
if (file.executionStage == ExecutableFile.UNINSTALL)
{
uninstallData.addExecutable(file);
}
}
}
}
/**
* Reads {@link UpdateCheck update checks} from the supplied stream.
*
* @param stream the stream to read from
* @param updateChecks used to collect the read objects
* @throws IOException for any I/O error
* @throws ClassNotFoundException if the class of a serialised object cannot be found
*/
protected void readUpdateChecks(ObjectInputStream stream, List updateChecks)
throws IOException, ClassNotFoundException
{
int count = stream.readInt();
for (int i = 0; i < count; ++i)
{
UpdateCheck check = (UpdateCheck) stream.readObject();
updateChecks.add(check);
}
}
/**
* Returns the pack200 unpacker, creating it if required.
*
* @return the pack200 unpacker
*/
private Pack200.Unpacker getPack200Unpacker()
{
if (unpacker == null)
{
unpacker = Pack200.newUnpacker();
}
return unpacker;
}
}
