package org.gudy.azureus2.platform.unix;
import java.io.*;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.gudy.azureus2.core3.config.COConfigurationManager;
import org.gudy.azureus2.core3.util.Constants;
import org.gudy.azureus2.core3.util.Debug;
import org.gudy.azureus2.core3.util.FileUtil;
import com.aelitis.azureus.core.impl.AzureusCoreSingleInstanceClient;
import org.gudy.azureus2.plugins.PluginManager;
public class ScriptBeforeStartup
{
private static PrintStream sysout;
private static Object display;
public static void main(String[] args) {
// Set transitory so not everything gets loaded up. (such as the AEDiagnostic's tidy flag)
System.setProperty("transitory.startup", "1");
// Since stdout will be in a shell script, redirect any stdout not coming
// from us to stderr
sysout = System.out;
try {
System.setOut(new PrintStream(new FileOutputStream("/dev/stderr")));
} catch (FileNotFoundException e) {
}
String mi_str = System.getProperty(PluginManager.PR_MULTI_INSTANCE);
boolean mi = mi_str != null && mi_str.equalsIgnoreCase("true");
if (!mi) {
boolean argsSent = new AzureusCoreSingleInstanceClient().sendArgs(args, 500);
if (argsSent) {
// azureus was open..
String msg = "Passing startup args to already-running " + Constants.APP_NAME + " java process listening on [127.0.0.1: " + Constants.INSTANCE_PORT + "]";
log(msg);
sysout.println("exit");
return;
}
}
// If the after shutdown script didn't run or crapped out, then
// don't run again..
String scriptAfterShutdown = COConfigurationManager.getStringParameter(
"scriptaftershutdown", null);
COConfigurationManager.removeParameter("scriptaftershutdown.exit");
COConfigurationManager.removeParameter("scriptaftershutdown");
COConfigurationManager.save();
if (scriptAfterShutdown != null) {
log("Script after " + Constants.APP_NAME + " shutdown did not run.. running now");
sysout.println(scriptAfterShutdown);
if (scriptAfterShutdown.indexOf("$0") < 0) {
// doesn't have a restart.. add one
sysout.println("echo \"Restarting Azureus..\"");
sysout.println("$0\n");
}
// exit is a requirement
sysout.println("exit");
return;
}
String moz = getNewGreDir();
if (moz != null) {
String s = "export MOZILLA_FIVE_HOME=\"" + moz + "\"\n"
+ "if [ \"$LD_LIBRARY_PATH x\" = \" x\" ] ; then\n"
+ " export LD_LIBRARY_PATH=$MOZILLA_FIVE_HOME;\n" + "else\n"
+ " export LD_LIBRARY_PATH=$MOZILLA_FIVE_HOME:$LD_LIBRARY_PATH\n"
+ "fi\n";
sysout.println(s);
log("setting LD_LIBRARY_PATH to: $LD_LIBRARY_PATH");
log("setting MOZILLA_FIVE_HOME to: $MOZILLA_FIVE_HOME");
} else {
log("GRE/XULRunner automatically found");
}
}
public static String getNewGreDir() {
// SWT does a pretty awesome job at finding GRE, most cases this will work
if (canOpenBrowser()) {
return null;
}
// TODO: Store last successful dir somewhere and check that first
// COConfigurationManager probably a bad idea, since that may load
// Logger and who knows what other libraries
String grePath = null;
final String[] confList = {
"/etc/gre64.conf",
"/etc/gre.d/gre64.conf",
"/etc/gre.conf",
"/etc/gre.d/gre.conf",
"/etc/gre.d/xulrunner.conf",
"/etc/gre.d/libxul0d.conf"
};
log("Auto-scanning for GRE/XULRunner. You can skip this by appending the GRE path to LD_LIBRARY_PATH and setting MOZILLA_FIVE_HOME.");
try {
Pattern pat = Pattern.compile("GRE_PATH=(.*)", Pattern.CASE_INSENSITIVE);
for (int i = 0; i < confList.length; i++) {
File file = new File(confList[i]);
if (file.isFile() && file.canRead()) {
log(" checking " + file + " for GRE_PATH");
String fileText = FileUtil.readFileAsString(file, 16384);
if (fileText != null) {
Matcher matcher = pat.matcher(fileText);
if (matcher.find()) {
String possibleGrePath = matcher.group(1);
if (isValidGrePath(new File(possibleGrePath))) {
grePath = possibleGrePath;
break;
}
}
}
}
}
if (grePath == null) {
final ArrayList possibleDirs = new ArrayList();
File libDir = new File("/usr");
libDir.listFiles(new FileFilter() {
public boolean accept(File pathname) {
if (pathname.getName().startsWith("lib")) {
possibleDirs.add(pathname);
}
return false;
}
});
possibleDirs.add(new File("/usr/local"));
possibleDirs.add(new File("/opt"));
final String[] possibleDirNames = {
"mozilla",
"firefox",
"seamonkey",
"xulrunner",
};
FileFilter ffIsPossibleDir = new FileFilter() {
public boolean accept(File pathname) {
String name = pathname.getName().toLowerCase();
for (int i = 0; i < possibleDirNames.length; i++) {
if (name.startsWith(possibleDirNames[i])) {
return true;
}
}
return false;
}
};
for (Iterator iter = possibleDirs.iterator(); iter.hasNext();) {
File dir = (File) iter.next();
File[] possibleFullDirs = dir.listFiles(ffIsPossibleDir);
for (int i = 0; i < possibleFullDirs.length; i++) {
log(" checking " + possibleFullDirs[i] + " for GRE");
if (isValidGrePath(possibleFullDirs[i])) {
grePath = possibleFullDirs[i].getAbsolutePath();
break;
}
}
if (grePath != null) {
break;
}
}
}
if (grePath != null) {
log("GRE found at " + grePath + ".");
System.setProperty("org.eclipse.swt.browser.XULRunnerPath", grePath);
}
} catch (Throwable t) {
log("Error trying to find suitable GRE: "
+ Debug.getNestedExceptionMessage(t));
grePath = null;
}
if (!canOpenBrowser()) {
log("Can't create browser. Will try to set LD_LIBRARY_PATH and hope "
+ Constants.APP_NAME + " has better luck.");
}
return grePath;
}
private static boolean canOpenBrowser() {
try {
Class claDisplay = Class.forName("org.eclipse.swt.widgets.Display");
if (display != null) {
display = claDisplay.newInstance();
}
Class claShell = Class.forName("org.eclipse.swt.widgets.Shell");
Constructor shellConstruct = claShell.getConstructor(new Class[] {
claDisplay,
});
Object shell = shellConstruct.newInstance(new Object[] {
display
});
Class claBrowser = Class.forName("org.eclipse.swt.browser.Browser");
Constructor[] constructors = claBrowser.getConstructors();
for (int i = 0; i < constructors.length; i++) {
if (constructors[i].getParameterTypes().length == 2) {
Object browser = constructors[i].newInstance(new Object[] {
shell,
new Integer(0)
});
Method methSetUrl = claBrowser.getMethod("setUrl", new Class[] {
String.class
});
methSetUrl.invoke(browser, new Object[] {
"about:blank"
});
break;
}
}
Method methDisposeShell = claShell.getMethod("dispose", new Class[] {});
methDisposeShell.invoke(shell, new Object[] {});
return true;
} catch (Throwable e) {
log("Browser check failed with: " + Debug.getNestedExceptionMessage(e));
return false;
}
}
private static boolean isValidGrePath(File dir) {
if (!dir.isDirectory()) {
return false;
}
if (new File(dir, "components/libwidget_gtk.so").exists()
|| new File(dir, "libwidget_gtk.so").exists()) {
log(" Can not use GRE from " + dir
+ " as it's too old (GTK2 version required).");
return false;
}
// newer GRE doesn't have libwidget at all, but older ones do, and it's
// gtk2, we are good to go
if (new File(dir, "components/libwidget_gtk2.so").exists()
|| new File(dir, "libwidget_gtk2.so").exists()) {
return true;
}
if (!new File(dir, "components/libxpcom.so").exists()
&& !new File(dir, "libxpcom.so").exists()) {
log(" Can not use GRE from " + dir + " because it's missing libxpcom.so.");
return false;
}
return true;
}
private static void log(String string) {
sysout.println("echo \"" + string.replaceAll("\"", "\\\"") + "\"");
}
}