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yacy_search_server/source/net/yacy/gui/framework/Browser.java

157 lines
6.6 KiB

/**
* Browser
* Copyright 2010 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
* First released 05.08.2010 at http://yacy.net
*
* $LastChangedDate: 2010-06-16 17:11:21 +0200 (Mi, 16 Jun 2010) $
* $LastChangedRevision: 6922 $
* $LastChangedBy: orbiter $
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program in the file lgpl21.txt
* If not, see <http://www.gnu.org/licenses/>.
*/
package net.yacy.gui.framework;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.lang.reflect.Method;
import java.util.Properties;
import net.yacy.kelondro.logging.Log;
public class Browser {
// constants for system identification
public static final int systemMacOSC = 0; // 'classic' Mac OS 7.6.1/8.*/9.*
public static final int systemMacOSX = 1; // all Mac OS X
public static final int systemUnix = 2; // all Unix/Linux type systems
public static final int systemWindows = 3; // all Windows 95/98/NT/2K/XP
public static final int systemUnknown = -1; // any other system
// constants for file type identification (Mac only)
public static final String blankTypeString = "____";
// system-identification statics
public static final int systemOS;
public static final boolean isMacArchitecture;
public static final boolean isUnixFS;
public static final boolean canExecUnix;
public static final boolean isWindows;
public static final boolean isWin32;
// calculated system constants
public static int maxPathLength = 65535;
// Macintosh-specific statics
private static Class<?> macMRJFileUtils = null;
private static Method macOpenURL = null;
// static initialization
static {
// check operation system type
final Properties sysprop = System.getProperties();
final String sysname = sysprop.getProperty("os.name","").toLowerCase();
if (sysname.startsWith("mac os x")) systemOS = systemMacOSX;
else if (sysname.startsWith("mac os")) systemOS = systemMacOSC;
else if (sysname.startsWith("windows")) systemOS = systemWindows;
else if ((sysname.startsWith("linux")) || (sysname.startsWith("unix"))) systemOS = systemUnix;
else systemOS = systemUnknown;
isMacArchitecture = ((systemOS == systemMacOSC) || (systemOS == systemMacOSX));
isUnixFS = ((systemOS == systemMacOSX) || (systemOS == systemUnix));
canExecUnix = ((isUnixFS) || (!((systemOS == systemMacOSC) || (systemOS == systemWindows))));
isWindows = (systemOS == systemWindows);
isWin32 = (isWindows && System.getProperty("os.arch", "").contains("x86"));
// set up the MRJ Methods through reflection
if (isMacArchitecture) try {
macMRJFileUtils = Class.forName("com.apple.mrj.MRJFileUtils");
macOpenURL = macMRJFileUtils.getMethod("openURL", new Class[] {Class.forName("java.lang.String")});
final byte[] nullb = new byte[4];
for (int i = 0; i < 4; i++) nullb[i] = 0;
} catch (final Exception e) {
//Log.logException(e);
macMRJFileUtils = null;
}
// set up maximum path length according to system
if (isWindows) maxPathLength = 255; else maxPathLength = 65535;
}
public static void openBrowser(final String url) {
openBrowser(url, "firefox");
}
public static void openBrowser(final String url, final String app) {
try {
String cmd;
Process p;
if (systemOS != systemUnknown) {
if (systemOS == systemMacOSC) {
if ((isMacArchitecture) && (macMRJFileUtils != null)) {
macOpenURL.invoke(null, new Object[] {url});
}
} else if (systemOS == systemMacOSX) {
p = Runtime.getRuntime().exec(new String[] {"/usr/bin/osascript", "-e", "open location \"" + url + "\""});
p.waitFor();
if (p.exitValue() != 0) throw new RuntimeException("EXEC ERROR: " + errorResponse(p));
} else if (systemOS == systemUnix) {
cmd = app + " -remote openURL(" + url + ")";
p = Runtime.getRuntime().exec(cmd);
p.waitFor();
if (p.exitValue() != 0) {
cmd = app + " " + url;
p = Runtime.getRuntime().exec(cmd);
// no error checking, because it blocks until firefox is closed
}
} else if (systemOS == systemWindows) {
// see forum at http://forum.java.sun.com/thread.jsp?forum=57&thread=233364&message=838441
if (System.getProperty("os.name").contains("2000")) cmd = "rundll32 url.dll,FileProtocolHandler " + url;
else cmd = "rundll32 url.dll,FileProtocolHandler \"" + url + "\"";
//cmd = "cmd.exe /c start javascript:document.location='" + url + "'";
p = Runtime.getRuntime().exec(cmd);
p.waitFor();
if (p.exitValue() != 0) throw new RuntimeException("EXEC ERROR: " + errorResponse(p));
}
}
} catch (final Exception e) {
System.err.println("ERROR "+ e.getClass() +" in openBrowser(): "+ e.getMessage());
// browser could not be started automatically, tell user to do it
System.out.println("please start your browser and open the following location: " + url);
}
}
private static String errorResponse(final Process p) {
final BufferedReader err = new BufferedReader(new InputStreamReader(p.getErrorStream()));
String line, error = "";
try {
while ((line = err.readLine()) != null) {
error = line + "\n";
}
return error;
} catch (final IOException e) {
return null;
} finally {
try {
err.close();
} catch (IOException e) {
Log.logException(e);
}
}
}
}