// yacy.java
// -----------------------
// (C) by Michael Peter Christen; mc@yacy.net
// first published on http://www.yacy.net
// Frankfurt, Germany, 2004, 2005
//
// $LastChangedDate$
// $LastChangedRevision$
// $LastChangedBy$
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
package net.yacy;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.io.RandomAccessFile;
import java.nio.channels.FileChannel;
import java.nio.channels.FileLock;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Properties;
import java.util.concurrent.Semaphore;
import java.util.concurrent.TimeUnit;
import org.apache.http.Header;
import org.apache.http.HttpStatus;
import org.apache.http.entity.mime.content.ContentBody;
import com.google.common.io.Files;
import net.yacy.cora.date.GenericFormatter;
import net.yacy.cora.document.encoding.UTF8;
import net.yacy.cora.document.id.MultiProtocolURL;
import net.yacy.cora.federate.solr.instance.RemoteInstance;
import net.yacy.cora.protocol.ClientIdentification;
import net.yacy.cora.protocol.ConnectionInfo;
import net.yacy.cora.protocol.HeaderFramework;
import net.yacy.cora.protocol.TimeoutRequest;
import net.yacy.cora.protocol.http.HTTPClient;
import net.yacy.cora.util.ConcurrentLog;
import net.yacy.data.TransactionManager;
import net.yacy.data.Translator;
import net.yacy.gui.YaCyApp;
import net.yacy.gui.framework.Browser;
import net.yacy.http.YaCyHttpServer;
import net.yacy.kelondro.util.FileUtils;
import net.yacy.kelondro.util.Formatter;
import net.yacy.kelondro.util.MemoryControl;
import net.yacy.kelondro.util.OS;
import net.yacy.peers.Seed;
import net.yacy.peers.operation.yacyBuildProperties;
import net.yacy.peers.operation.yacyRelease;
import net.yacy.search.Switchboard;
import net.yacy.search.SwitchboardConstants;
import net.yacy.server.serverSwitch;
import net.yacy.utils.translation.TranslatorXliff;
/**
* This is the main class of YaCy. Several threads are started from here:
* <ul>
* <li>one single instance of the plasmaSwitchboard is generated, which itself
* starts a thread with a plasmaHTMLCache object. This object simply counts
* files sizes in the cache and terminates them. It also generates a
* plasmaCrawlerLoader object, which may itself start some more httpc-calling
* threads to load web pages. They terminate automatically when a page has
* loaded.
* <li>one serverCore - thread is started, which implements a multi-threaded
* server. The process may start itself many more processes that handle
* connections.lo
* <li>finally, all idle-dependent processes are written in a queue in
* plasmaSwitchboard which are worked off inside an idle-sensitive loop of the
* main process. (here)
* </ul>
*
* On termination, the following must be done:
* <ul>
* <li>stop feeding of the crawling process because it otherwise fills the
* indexing queue.
* <li>say goodbye to connected peers and disable new connections. Don't wait for
* success.
* <li>first terminate the serverCore thread. This prevents that new cache
* objects are queued.
* <li>wait that the plasmaHTMLCache terminates (it should be normal that this
* process already has terminated).
* <li>then wait for termination of all loader process of the
* plasmaCrawlerLoader.
* <li>work off the indexing and cache storage queue. These values are inside a
* RAM cache and would be lost otherwise.
* <li>write all settings.
* <li>terminate.
* </ul>
*/
public final class yacy {
// static objects
public static final String vString = yacyBuildProperties.getVersion();
public static final String copyright = "[ YaCy v" + vString + " by Michael Christen / www.yacy.net ]";
public static final String hline = "-------------------------------------------------------------------------------";
public static final Semaphore shutdownSemaphore = new Semaphore(0);
public static File htDocsPath = null;
public static File shareDefaultPath = null;
public static File shareDumpDefaultPath = null;
/**
* a reference to the {@link Switchboard} created by the
* {@link yacy#startup(String, long, long)} method.
*/
private static Switchboard sb = null;
/**
* Starts up the whole application. Sets up all datastructures and starts
* the main threads.
*
* @param homePath Root-path where all information is to be found.
* @param startupFree free memory at startup time, to be used later for statistics
*/
private static void startup(final File dataHome, final File appHome, final long startupMemFree, final long startupMemTotal, final boolean gui) {
String tmpdir=null;
try {
// start up
System.out.println(copyright);
System.out.println(hline);
// ensure that there is a DATA directory, if not, create one and if that fails warn and die
mkdirsIfNeseccary(dataHome);
mkdirsIfNeseccary(appHome);
File f = new File(dataHome, "DATA/");
mkdirsIfNeseccary(f);
if (!(f.exists())) {
System.err.println("Error creating DATA-directory in " + dataHome.toString() + " . Please check your write-permission for this folder. YaCy will now terminate.");
System.exit(-1);
}
// set jvm tmpdir to a subdir for easy cleanup (as extensive use file.deleteonexit waists memory during long runs, as todelete files names are collected and never cleaned up during runtime)
// keep this as earlier as possible, as any other class can use the "java.io.tmpdir" property, even the log manager, when the log file pattern uses "%t" as an alias for the tmp directory
try {
tmpdir = java.nio.file.Files.createTempDirectory("yacy-tmp-").toString(); // creates sub dir in jvm's temp (see System.property "java.io.tempdir")
System.setProperty("java.io.tmpdir", tmpdir);
} catch (final IOException ex) { }
// setting up logging
f = new File(dataHome, "DATA/LOG/");
mkdirsIfNeseccary(f);
f = new File(f, "yacy.logging");
final File f0 = new File(appHome, "defaults/yacy.logging");
if (!f.exists() || f0.lastModified() > f.lastModified()) try {
Files.copy(f0, f);
} catch (final IOException e){
System.out.println("could not copy yacy.logging: " + e.getMessage());
}
try{
ConcurrentLog.configureLogging(dataHome, new File(dataHome, "DATA/LOG/yacy.logging"));
} catch (final IOException e) {
System.out.println("could not find logging properties in homePath=" + dataHome);
ConcurrentLog.logException(e);
}
ConcurrentLog.config("STARTUP", "YaCy version: " + yacyBuildProperties.getReleaseStub());
ConcurrentLog.config("STARTUP", "Java version: " + System.getProperty("java.version", "no-java-version"));
ConcurrentLog.config("STARTUP", "Operation system: " + System.getProperty("os.name","unknown"));
ConcurrentLog.config("STARTUP", "Application root-path: " + appHome);
ConcurrentLog.config("STARTUP", "Data root-path: " + dataHome);
ConcurrentLog.config("STARTUP", "Time zone: UTC" + GenericFormatter.UTCDiffString() + "; UTC+0000 is " + System.currentTimeMillis());
ConcurrentLog.config("STARTUP", "Maximum file system path length: " + OS.maxPathLength);
f = new File(dataHome, "DATA/yacy.running");
if (!f.createNewFile()) ConcurrentLog.severe("STARTUP", "WARNING: the file " + f + " can not be created!");
try {
final FileOutputStream fos = new FileOutputStream(f);
fos.write(Integer.toString(OS.getPID()).getBytes());
fos.close();
} catch (final Exception e) { } // write PID
f.deleteOnExit();
FileChannel channel = null;
FileLock lock = null;
try {
final RandomAccessFile raf = new RandomAccessFile(f,"rw");
channel = raf.getChannel();
lock = channel.tryLock(); // lock yacy.running
raf.close();
} catch (final Exception e) { }
final String conf = "DATA/SETTINGS/yacy.conf".replace("/", File.separator);
try {
sb = new Switchboard(dataHome, appHome, "defaults/yacy.init".replace("/", File.separator), conf);
} catch (final RuntimeException e) {
ConcurrentLog.severe("STARTUP", "YaCy cannot start: " + e.getMessage(), e);
System.exit(-1);
}
//sbSync.V(); // signal that the sb reference was set
// switch the memory strategy
MemoryControl.setStandardStrategy(sb.getConfigBool("memory.standardStrategy", true));
// save information about available memory at startup time
sb.setConfig("memoryFreeAfterStartup", startupMemFree);
sb.setConfig("memoryTotalAfterStartup", startupMemTotal);
// start gui if wanted
if (gui) YaCyApp.start("localhost", sb.getLocalPort());
// hardcoded, forced, temporary value-migration
sb.setConfig("htTemplatePath", "htroot/env/templates");
double oldVer;
try {
String tmpversion = sb.getConfig(Seed.VERSION, "");
if (tmpversion.isEmpty()) { // before 1.83009737 only the svnRevision nr was in config (like 9737)
tmpversion = yacyBuildProperties.getVersion();
final int oldRev = Integer.parseInt(sb.getConfig("svnRevision", "0"));
if (oldRev > 1) {
oldVer = Double.parseDouble(tmpversion) + oldRev / 100000000.0;
} else {
oldVer = Double.parseDouble(yacyBuildProperties.getVersion()); // failsafe (assume current version = no migration)
}
} else {
oldVer = Double.parseDouble(tmpversion);
}
} catch (final NumberFormatException e) {
oldVer = 0.0d;
}
final double newRev = Double.parseDouble(yacyBuildProperties.getVersion());
sb.setConfig(Seed.VERSION, yacyBuildProperties.getVersion());
sb.setConfig("applicationRoot", appHome.toString());
sb.setConfig("dataRoot", dataHome.toString());
// create some directories
final File htRootPath = new File(appHome, sb.getConfig(SwitchboardConstants.HTROOT_PATH, SwitchboardConstants.HTROOT_PATH_DEFAULT));
mkdirIfNeseccary(htRootPath);
htDocsPath = sb.getDataPath(SwitchboardConstants.HTDOCS_PATH, SwitchboardConstants.HTDOCS_PATH_DEFAULT);
mkdirIfNeseccary(htDocsPath);
//final File htTemplatePath = new File(homePath, sb.getConfig("htTemplatePath","htdocs"));
// create default notifier picture
final File notifierFile = new File(htDocsPath, "notifier.gif");
if (!notifierFile.exists()) try {Files.copy(new File(htRootPath, "env/grafics/empty.gif"), notifierFile);} catch (final IOException e) {}
final File htdocsReadme = new File(htDocsPath, "readme.txt");
if (!(htdocsReadme.exists())) try {FileUtils.copy((
"This is your root directory for individual Web Content\r\n" +
"\r\n" +
"Please place your html files into the www subdirectory.\r\n" +
"The URL of that path is either\r\n" +
"http://www.<your-peer-name>.yacy or\r\n" +
"http://<your-ip>:<your-port>/www\r\n" +
"\r\n" +
"Other subdirectories may be created; they map to corresponding sub-domains.\r\n" +
"This directory shares it's content with the applications htroot path, so you\r\n" +
"may access your yacy search page with\r\n" +
"http://<your-peer-name>.yacy/\r\n" +
"\r\n").getBytes(), htdocsReadme);} catch (final IOException e) {
System.out.println("Error creating htdocs readme: " + e.getMessage());
}
shareDefaultPath = new File(htDocsPath, "share");
mkdirIfNeseccary(shareDefaultPath);
shareDumpDefaultPath = new File(shareDefaultPath, "dump");
mkdirIfNeseccary(shareDumpDefaultPath);
migration.migrate(sb, oldVer, newRev);
// delete old release files
final int deleteOldDownloadsAfterDays = (int) sb.getConfigLong("update.deleteOld", 30);
yacyRelease.deleteOldDownloads(sb.releasePath, deleteOldDownloadsAfterDays );
// start main threads
final int port = sb.getLocalPort();
try {
// start http server
YaCyHttpServer httpServer;
httpServer = new YaCyHttpServer(port, "0.0.0.0");
httpServer.startupServer();
sb.setHttpServer(httpServer);
// TODO: this has no effect on Jetty (but needed to reflect configured value and limit is still used)
ConnectionInfo.setServerMaxcount(sb.getConfigInt("connectionsMax", ConnectionInfo.getMaxcount()));
ConcurrentLog.info("STARTUP",httpServer.getVersion());
// open the browser window
final boolean browserPopUpTrigger = sb.getConfig(SwitchboardConstants.BROWSER_POP_UP_TRIGGER, "true").equals("true");
if (browserPopUpTrigger) try {
final String browserPopUpPage = sb.getConfig(SwitchboardConstants.BROWSER_POP_UP_PAGE, "ConfigBasic.html");
//boolean properPW = (sb.getConfig(SwitchboardConstants.ADMIN_ACCOUNT, "").isEmpty()) && (sb.getConfig(httpd.ADMIN_ACCOUNT_B64MD5, "").length() > 0);
//if (!properPW) browserPopUpPage = "ConfigBasic.html";
/* YaCy main startup process must not hang because browser opening is long or fails.
* Let's open try opening the browser in a separate thread */
new Thread("Browser opening") {
@Override
public void run() {
Browser.openBrowser(("http://localhost:"+port) + "/" + browserPopUpPage);
}
}.start();
// Browser.openBrowser((server.withSSL()?"https":"http") + "://localhost:" + serverCore.getPortNr(port) + "/" + browserPopUpPage);
} catch (final Throwable e) {
// cannot open browser. This may be normal in headless environments
//Log.logException(e);
}
// enable browser popup, http server is ready now
sb.tray.setReady();
//regenerate Locales from Translationlist, if needed
final File locale_source = sb.getAppPath("locale.source", "locales");
final String lang = sb.getConfig("locale.language", "");
// on lang=browser all active translation should be checked (because any could be requested by client)
List<String> langlist;
if (lang.endsWith("browser"))
langlist = Translator.activeTranslations(); // get all translated languages
else {
langlist = new ArrayList<>();
langlist.add(lang);
}
for (final String tmplang : langlist) {
if (!tmplang.equals("") && !tmplang.equals("default") && !tmplang.equals("browser")) { //locale is used
String currentRev = null;
BufferedReader br = null;
try {
br = new BufferedReader(new InputStreamReader(new FileInputStream(new File(sb.getDataPath("locale.translated_html", "DATA/LOCALE/htroot"), tmplang + "/version"))));
currentRev = br.readLine(); // may return null
} catch (final IOException e) {
//Error
} finally {
try {
br.close();
} catch(final IOException ioe) {
ConcurrentLog.warn("STARTUP", "Could not close " + tmplang + " version file");
}
}
if (currentRev == null || !currentRev.equals(sb.getConfig(Seed.VERSION, ""))) {
try { //is this another version?!
final File sourceDir = new File(sb.getConfig(SwitchboardConstants.HTROOT_PATH, SwitchboardConstants.HTROOT_PATH_DEFAULT));
final File destDir = new File(sb.getDataPath("locale.translated_html", "DATA/LOCALE/htroot"), tmplang);
if (new TranslatorXliff().translateFilesRecursive(sourceDir, destDir, new File(locale_source, tmplang + ".lng"), "html,template,inc", "locale")) { //translate it
//write the new Versionnumber
final BufferedWriter bw = new BufferedWriter(new PrintWriter(new FileWriter(new File(destDir, "version"))));
bw.write(sb.getConfig(Seed.VERSION, "Error getting Version"));
bw.close();
}
} catch (final IOException e) {
}
}
}
}
// initialize number formatter with this locale
if (!lang.equals("browser")) // "default" is handled by .setLocale()
Formatter.setLocale(lang);
// registering shutdown hook
ConcurrentLog.config("STARTUP", "Registering Shutdown Hook");
final Runtime run = Runtime.getRuntime();
run.addShutdownHook(new shutdownHookThread(sb, shutdownSemaphore));
// save information about available memory after all initializations
//try {
sb.setConfig("memoryFreeAfterInitBGC", MemoryControl.free());
sb.setConfig("memoryTotalAfterInitBGC", MemoryControl.total());
System.gc();
sb.setConfig("memoryFreeAfterInitAGC", MemoryControl.free());
sb.setConfig("memoryTotalAfterInitAGC", MemoryControl.total());
//} catch (final ConcurrentModificationException e) {}
// wait for server shutdown
try {
sb.waitForShutdown();
} catch (final Exception e) {
ConcurrentLog.severe("MAIN CONTROL LOOP", "PANIC: " + e.getMessage(),e);
}
// shut down
ConcurrentLog.config("SHUTDOWN", "caught termination signal");
httpServer.stop();
ConcurrentLog.config("SHUTDOWN", "server has terminated");
sb.close();
} catch (final Exception e) {
ConcurrentLog.severe("STARTUP", "Unexpected Error: " + e.getClass().getName(),e);
//System.exit(1);
}
if (lock != null && lock.isValid()) lock.release();
if (channel != null && channel.isOpen()) channel.close();
} catch (final Exception ee) {
ConcurrentLog.severe("STARTUP", "FATAL ERROR: " + ee.getMessage(),ee);
} finally {
}
if (tmpdir != null) FileUtils.deletedelete(new File(tmpdir)); // clean up temp dir (set at startup as subdir of system.propery "java.io.tmpdir")
ConcurrentLog.config("SHUTDOWN", "goodbye. (this is the last line)");
ConcurrentLog.shutdown();
shutdownSemaphore.release(1000);
try {
System.exit(0);
} catch (final Exception e) {} // was once stopped by de.anomic.net.ftpc$sm.checkExit(ftpc.java:1790)
}
/**
* @param f
*/
private static void delete(final File f) {
if(!f.delete())
ConcurrentLog.severe("STARTUP", "WARNING: the file " + f + " can not be deleted!");
}
/**
* @see File#mkdir()
* @param path
*/
public static void mkdirIfNeseccary(final File path) {
if (!(path.exists()))
if(!path.mkdir())
ConcurrentLog.warn("STARTUP", "could not create directory "+ path.toString());
}
/**
* @see File#mkdirs()
* @param path
*/
public static void mkdirsIfNeseccary(final File path) {
if (!(path.exists()))
if(!path.mkdirs())
ConcurrentLog.warn("STARTUP", "could not create directories "+ path.toString());
}
/**
* Loads the configuration from the data-folder.
* FIXME: Why is this called over and over again from every method, instead
* of setting the configurationdata once for this class in main?
*
* @param mes Where are we called from, so that the errormessages can be
* more descriptive.
* @param homePath Root-path where all the information is to be found.
* @return Properties read from the configurationfile.
*/
private static Properties configuration(final String mes, final File homePath) {
ConcurrentLog.config(mes, "Application Root Path: " + homePath.toString());
// read data folder
final File dataFolder = new File(homePath, "DATA");
if (!(dataFolder.exists())) {
ConcurrentLog.severe(mes, "Application was never started or root path wrong.");
System.exit(-1);
}
final Properties config = new Properties();
FileInputStream fis = null;
try {
fis = new FileInputStream(new File(homePath, "DATA/SETTINGS/yacy.conf"));
config.load(fis);
} catch (final FileNotFoundException e) {
ConcurrentLog.severe(mes, "could not find configuration file.");
System.exit(-1);
} catch (final IOException e) {
ConcurrentLog.severe(mes, "could not read configuration file.");
System.exit(-1);
} finally {
if(fis != null) {
try {
fis.close();
} catch (final IOException e) {
ConcurrentLog.logException(e);
}
}
}
return config;
}
/**
* Call the shutdown-page of YaCy to tell it to shut down. This method is
* called if you start yacy with the argument -shutdown.
*
* @param homePath Root-path where all the information is to be found.
*/
public static void shutdown(final File homePath) {
// start up
System.out.println(copyright);
System.out.println(hline);
final LinkedHashMap<String,ContentBody> post = new LinkedHashMap<>();
post.put("shutdown", UTF8.StringBody(""));
submitPostURL(homePath, "Steering.html", "Terminate YaCy", post);
}
public static void update(final File homePath) {
// start up
System.out.println(copyright);
System.out.println(hline);
submitURL(homePath, "ConfigUpdate_p.html?autoUpdate=", "Update YaCy to most recent version");
}
/**
* Submits post data to the local peer URL, authenticating as administrator
* @param homePath directory containing YaCy DATA folder
* @param path url relative path part
* @param processdescription description of the operation for logging purpose
* @param post data to post
*/
private static void submitPostURL(final File homePath, final String path, final String processdescription, final Map<String, ContentBody> post) {
final Properties config = configuration("COMMAND-STEERING", homePath);
// read port
final int port = Integer.parseInt(config.getProperty(SwitchboardConstants.SERVER_PORT, "8090"));
// read password
final String encodedPassword = config.getProperty(SwitchboardConstants.ADMIN_ACCOUNT_B64MD5, "");
final String adminUser = config.getProperty(SwitchboardConstants.ADMIN_ACCOUNT_USER_NAME, "admin");
// send 'wget' to web interface
try (final HTTPClient con = new HTTPClient(ClientIdentification.yacyInternetCrawlerAgent)) {
/* First get a valid transaction token using HTTP GET */
con.GETbytes("http://localhost:"+ port +"/" + path, adminUser, encodedPassword, false);
if (con.getStatusCode() != HttpStatus.SC_OK) {
throw new IOException("Error response from YACY socket: " + con.getHttpResponse().getStatusLine());
}
final Header transactionTokenHeader = con.getHttpResponse().getFirstHeader(HeaderFramework.X_YACY_TRANSACTION_TOKEN);
if(transactionTokenHeader == null) {
throw new IOException("Could not retrieve a valid transaction token");
}
/* Then POST the request */
post.put(TransactionManager.TRANSACTION_TOKEN_PARAM, UTF8.StringBody(transactionTokenHeader.getValue()));
con.POSTbytes(new MultiProtocolURL("http://localhost:"+ port +"/" + path), null, post, adminUser, encodedPassword, false, false);
if (con.getStatusCode() >= HttpStatus.SC_OK && con.getStatusCode() < HttpStatus.SC_MULTIPLE_CHOICES) {
ConcurrentLog.config("COMMAND-STEERING", "YACY accepted steering command: " + processdescription);
} else {
ConcurrentLog.severe("COMMAND-STEERING", "error response from YACY socket: " + con.getHttpResponse().getStatusLine());
try {
HTTPClient.closeConnectionManager();
} catch (final InterruptedException e1) {
e1.printStackTrace();
}
RemoteInstance.closeConnectionManager();
System.exit(-1);
}
} catch (final IOException e) {
ConcurrentLog.severe("COMMAND-STEERING", "could not establish connection to YACY socket: " + e.getMessage());
try {
HTTPClient.closeConnectionManager();
} catch (final InterruptedException e1) {
e1.printStackTrace();
}
RemoteInstance.closeConnectionManager();
System.exit(-1);
}
try {
HTTPClient.closeConnectionManager();
} catch (final InterruptedException e) {
e.printStackTrace();
}
RemoteInstance.closeConnectionManager();
// finished
ConcurrentLog.config("COMMAND-STEERING", "SUCCESSFULLY FINISHED COMMAND: " + processdescription);
}
private static void submitURL(final File homePath, final String path, final String processdescription) {
final Properties config = configuration("COMMAND-STEERING", homePath);
// read port
final int port = Integer.parseInt(config.getProperty(SwitchboardConstants.SERVER_PORT, "8090"));
// read password
String encodedPassword = (String) config.get(SwitchboardConstants.ADMIN_ACCOUNT_B64MD5);
if (encodedPassword == null) encodedPassword = ""; // not defined
// send 'wget' to web interface
try (final HTTPClient con = new HTTPClient(ClientIdentification.yacyInternetCrawlerAgent)) {
con.GETbytes("http://localhost:"+ port +"/" + path, config.getProperty(SwitchboardConstants.ADMIN_ACCOUNT_USER_NAME,"admin"), encodedPassword, false);
if (con.getStatusCode() > 199 && con.getStatusCode() < 300) {
ConcurrentLog.config("COMMAND-STEERING", "YACY accepted steering command: " + processdescription);
} else {
ConcurrentLog.severe("COMMAND-STEERING", "error response from YACY socket: " + con.getHttpResponse().getStatusLine());
System.exit(-1);
}
} catch (final IOException e) {
ConcurrentLog.severe("COMMAND-STEERING", "could not establish connection to YACY socket: " + e.getMessage());
System.exit(-1);
}
try {
HTTPClient.closeConnectionManager();
} catch (final InterruptedException e) {
e.printStackTrace();
}
RemoteInstance.closeConnectionManager();
// finished
ConcurrentLog.config("COMMAND-STEERING", "SUCCESSFULLY FINISHED COMMAND: " + processdescription);
}
/**
* read saved config file and perform action which need to be done before main task starts
* - like check on system alrady running etc.
*
* @param dataHome data directory
*/
static private void preReadSavedConfigandInit(final File dataHome) {
final File lockFile = new File(dataHome, "DATA/yacy.running");
final String conf = "DATA/SETTINGS/yacy.conf";
// If YaCy is actually running, then we check if the server port is open.
// If yes, then we consider that a restart is a user mistake and then we just respond
// as the user expects and tell the browser to open the start page.
// That will especially happen if Windows Users double-Click the YaCy Icon on the desktop to simply
// open the web interface. (They don't think of 'servers' they just want to get to the search page).
// We need to parse the configuration file for that to get the host port
final File configFile = new File(dataHome, conf);
if (configFile.exists()) {
final Properties p = new Properties();
FileInputStream fis = null;
try {
fis = new FileInputStream(configFile);
p.load(fis);
// test for yacy already running
if (lockFile.exists()) { // another instance running? VM crash? User will have to care about this
//standard log system not up yet - use simply stdout
// prevents also creation of a log file while just opening browser
System.out.println("WARNING: the file " + lockFile + " exists, this usually means that a YaCy instance is still running. If you want to restart YaCy, try first ./stopYACY.sh, then ./startYACY.sh. If ./stopYACY.sh fails, try ./killYACY.sh");
final int port = Integer.parseInt(p.getProperty(SwitchboardConstants.SERVER_PORT, "8090"));
if (TimeoutRequest.ping("127.0.0.1", port, 1000)) {
Browser.openBrowser("http://localhost:" + port + "/" + p.getProperty(SwitchboardConstants.BROWSER_POP_UP_PAGE, "index.html"));
// Thats it; YaCy was running, the user is happy, we can stop now.
System.out.println("WARNING: YaCy instance was still running; just opening the browser and exit.");
System.exit(0);
} else {
// YaCy is not running; thus delete the file an go on as nothing was wrong.
System.err.println("INFO: delete old yacy.running file; likely previous YaCy session was not orderly shutdown!");
delete(lockFile);
}
}
} catch (final IOException ex) {
System.err.println("ERROR: config file seems to be corrupt");
System.err.println("ERROR: if problem persists, delete file");
System.err.println(configFile.getAbsolutePath());
ConcurrentLog.logException(ex);
ConcurrentLog.severe("Startup", "cannot read " + configFile.toString() + ", please delete the corrupted file if problem persits");
} finally {
try {
fis.close();
} catch (final IOException e) {
ConcurrentLog.warn("Startup", "Could not close file " + configFile);
}
}
}
}
/**
* Main-method which is started by java. Checks for special arguments or
* starts up the application.
*
* @param args
* Given arguments from the command line.
*/
public static void main(final String args[]) {
try {
// check assertion status
//ClassLoader.getSystemClassLoader().setDefaultAssertionStatus(true);
boolean assertionenabled = false;
assert (assertionenabled = true) == true; // compare to true to remove warning: "Possible accidental assignement"
if (assertionenabled) System.out.println("Asserts are enabled");
// check memory amount
System.gc();
final long startupMemFree = MemoryControl.free();
final long startupMemTotal = MemoryControl.total();
// maybe go into headless awt mode: we have three cases depending on OS and one exception:
// windows : better do not go into headless mode
// mac : go into headless mode because an application is shown in gui which may not be wanted
// linux : go into headless mode because this does not need any head operation
// exception : if the -gui option is used then do not go into headless mode since that uses a gui
boolean headless = true;
if (OS.isWindows) headless = false;
if (args.length >= 1 && args[0].toLowerCase(Locale.ROOT).equals("-gui")) headless = false;
System.setProperty("java.awt.headless", headless ? "true" : "false");
final StringBuilder s = new StringBuilder(); for (final String a: args) s.append(a).append(" ");
yacyRelease.startParameter = s.toString().trim();
// case for the application path if started normally with a jre command
File applicationRoot = new File(System.getProperty("user.dir").replace('\\', '/'));
File dataRoot = applicationRoot;
//System.out.println("args.length=" + args.length);
//System.out.print("args=["); for (int i = 0; i < args.length; i++) System.out.print(args[i] + ", "); System.out.println("]");
if ((args.length >= 1) && (args[0].toLowerCase(Locale.ROOT).equals("-startup") || args[0].equals("-start"))) {
// normal start-up of yacy
if (args.length > 1) {
dataRoot = new File(args[1]);
if(!dataRoot.isAbsolute()) {
/* data root folder provided as a path relative to the user home folder */
dataRoot = new File(System.getProperty("user.home").replace('\\', '/'), args[1]);
}
}
preReadSavedConfigandInit(dataRoot);
startup(dataRoot, applicationRoot, startupMemFree, startupMemTotal, false);
} else if (args.length >= 1 && args[0].toLowerCase(Locale.ROOT).equals("-gui")) {
// start-up of yacy with gui
if (args.length > 1) {
dataRoot = new File(args[1]);
if(!dataRoot.isAbsolute()) {
/* data root folder provided as a path relative to the user home folder */
dataRoot = new File(System.getProperty("user.home").replace('\\', '/'), args[1]);
}
}
preReadSavedConfigandInit(dataRoot);
startup(dataRoot, applicationRoot, startupMemFree, startupMemTotal, true);
} else if ((args.length >= 1) && ((args[0].toLowerCase(Locale.ROOT).equals("-shutdown")) || (args[0].equals("-stop")))) {
// normal shutdown of yacy
if (args.length == 2) applicationRoot= new File(args[1]);
shutdown(applicationRoot);
} else if ((args.length >= 1) && (args[0].toLowerCase(Locale.ROOT).equals("-update"))) {
// aut-update yacy
if (args.length == 2) applicationRoot= new File(args[1]);
update(applicationRoot);
} else if ((args.length >= 1) && (args[0].toLowerCase(Locale.ROOT).equals("-version"))) {
// show yacy version
System.out.println(copyright);
} else if ((args.length > 1) && (args[0].toLowerCase(Locale.ROOT).equals("-config"))) {
// set config parameter. Special handling of adminAccount=user:pwd (generates md5 encoded password)
// on Windows parameter should be enclosed in doublequotes to accept = sign (e.g. -config "port=8090" "port.ssl=8043")
final File f = new File (dataRoot,"DATA/SETTINGS/");
if (!f.exists()) {
mkdirsIfNeseccary(f);
} else {
if (new File(dataRoot, "DATA/yacy.running").exists()) {
System.out.println("please restart YaCy");
}
}
// use serverSwitch to read config properties (including init values from yacy.init
final serverSwitch ss = new serverSwitch(dataRoot,applicationRoot,"defaults/yacy.init","DATA/SETTINGS/yacy.conf");
for (int icnt=1; icnt < args.length ; icnt++) {
final String cfg = args[icnt];
final int pos = cfg.indexOf('=');
if (pos > 0) {
final String cmd = cfg.substring(0, pos);
final String val = cfg.substring(pos + 1);
if (!val.isEmpty()) {
if (cmd.equalsIgnoreCase(SwitchboardConstants.ADMIN_ACCOUNT)) { // special command to set adminusername and md5-pwd
final int cpos = val.indexOf(':'); //format adminAccount=adminname:adminpwd
if (cpos >= 0) {
String username = val.substring(0, cpos);
final String pwdtxt = val.substring(cpos + 1);
if (!username.isEmpty()) {
ss.setConfig(SwitchboardConstants.ADMIN_ACCOUNT_USER_NAME, username);
System.out.println("Set property " + SwitchboardConstants.ADMIN_ACCOUNT_USER_NAME + " = " + username);
} else {
username = ss.getConfig(SwitchboardConstants.ADMIN_ACCOUNT_USER_NAME, "admin");
}
ss.setConfig(SwitchboardConstants.ADMIN_ACCOUNT_B64MD5, sb.encodeDigestAuth(username, pwdtxt));
System.out.println("Set property " + SwitchboardConstants.ADMIN_ACCOUNT_B64MD5 + " = " + ss.getConfig(SwitchboardConstants.ADMIN_ACCOUNT_B64MD5, ""));
}
} else {
ss.setConfig(cmd, val);
System.out.println("Set property " + cmd + " = " + val);
}
}
} else {
System.out.println("skip parameter " + cfg + " (equal sign missing, put parameter in doublequotes)");
}
System.out.println();
}
} else {
if (args.length == 1) {
applicationRoot= new File(args[0]);
}
preReadSavedConfigandInit(dataRoot);
startup(dataRoot, applicationRoot, startupMemFree, startupMemTotal, false);
}
} finally {
ConcurrentLog.shutdown();
}
}
}
/**
* This class is a helper class whose instance is started, when the java virtual
* machine shuts down. Signals the plasmaSwitchboard to shut down.
*/
class shutdownHookThread extends Thread {
private final Switchboard sb;
private final Semaphore shutdownSemaphore;
public shutdownHookThread(final Switchboard sb, final Semaphore shutdownSemaphore) {
super("yacy.shutdownHookThread");
this.sb = sb;
this.shutdownSemaphore = shutdownSemaphore;
}
@Override
public void run() {
try {
if (!this.sb.isTerminated()) {
ConcurrentLog.config("SHUTDOWN","Shutdown via shutdown hook.");
/* Print also to the standard output, as the LogManager is likely to have
* been concurrently reset by its own shutdown hook thread */
System.out.println("SHUTDOWN Starting shutdown via shutdown hook.");
// sending the yacy main thread a shutdown signal
ConcurrentLog.fine("SHUTDOWN","Signaling shutdown to the switchboard.");
this.sb.terminate("shutdown hook");
// waiting for the yacy thread to finish execution
ConcurrentLog.fine("SHUTDOWN","Waiting for main thread to finish.");
/* Main thread will release the shutdownSemaphore once completely terminated.
* We do not wait indefinitely as the application is supposed here to quickly terminate */
final int maxWaitTime = 30;
if(!this.shutdownSemaphore.tryAcquire(maxWaitTime, TimeUnit.SECONDS)) {
System.out.println("Shutting down JVM. Main thread did not completely finish within " + maxWaitTime + " seconds.");
}
}
} catch (final Exception e) {
ConcurrentLog.severe("SHUTDOWN","Unexpected error. " + e.getClass().getName(),e);
}
}
}