//yacy.java //----------------------- //(C) by Michael Peter Christen; mc@anomic.de //first published on http://www.yacy.net //Frankfurt, Germany, 2004, 2005 //last major change: 24.03.2005 // //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 // //Using this software in any meaning (reading, learning, copying, compiling, //running) means that you agree that the Author(s) is (are) not responsible //for cost, loss of data or any harm that may be caused directly or indirectly //by usage of this softare or this documentation. The usage of this software //is on your own risk. The installation and usage (starting/running) of this //software may allow other people or application to access your computer and //any attached devices and is highly dependent on the configuration of the //software which must be done by the user of the software; the author(s) is //(are) also not responsible for proper configuration and usage of the //software, even if provoked by documentation provided together with //the software. // //Any changes to this file according to the GPL as documented in the file //gpl.txt aside this file in the shipment you received can be done to the //lines that follows this copyright notice here, but changes must not be //done inside the copyright notive above. A re-distribution must contain //the intact and unchanged copyright notice. //Contributions and changes to the program code must be marked as such. /* This is the main class of the proxy. From here, several threads are started: - 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 then. 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 - one serverCore - thread is started, which implements a multi-threaded server. The process may start itself many more processes that handle connections. - 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) On termination, the following must be done: - stop feeding of the crawling process because it othervise fills the indexing queue. - say goodbye to connected peers and disable new connections. Don't wait for success. - first terminate the serverCore thread. This prevents that new cache objects are queued - wait that the plasmaHTMLCache terminates (it should be normal that this process already has terminated) - then wait for termination of all loader process of the plasmaCrawlerLoader - work off the indexing and cache storage queue. These values are inside a RAM cache and would be lost othervise - write all settings - terminate */ import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileWriter; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.net.URL; import java.util.HashMap; import java.util.HashSet; import java.util.Iterator; import java.util.Properties; import java.util.TreeSet; import de.anomic.http.httpHeader; import de.anomic.http.httpc; import de.anomic.http.httpd; import de.anomic.http.httpdFileHandler; import de.anomic.http.httpdProxyHandler; import de.anomic.kelondro.kelondroMScoreCluster; import de.anomic.plasma.plasmaSwitchboard; import de.anomic.plasma.plasmaURL; import de.anomic.plasma.plasmaWordIndexEntity; import de.anomic.plasma.plasmaWordIndexEntry; import de.anomic.server.serverCodings; import de.anomic.server.serverCore; import de.anomic.server.serverFileUtils; import de.anomic.server.serverLog; import de.anomic.server.serverSystem; import de.anomic.tools.enumerateFiles; import de.anomic.yacy.yacyCore; //import de.anomic.http.*; public final class yacy { // static objects private static final String vString = "@REPL_VERSION@"; private static final String vDATE = "@REPL_DATE@"; private static final String copyright = "[ YACY Proxy v" + vString + ", build " + vDATE + " by Michael Christen / www.yacy.net ]"; private static final String hline = "-------------------------------------------------------------------------------"; private static void startup(String homePath) { long startup = yacyCore.universalTime(); try { // start up System.out.println(copyright); System.out.println(hline); // check java version try { String[] check = "a,b".split(","); // split needs java 1.4 } catch (NoSuchMethodError e) { serverLog.logFailure("STARTUP", "Java Version too low. You need at least Java 1.4.2 to run YACY"); Thread.currentThread().sleep(3000); System.exit(-1); } serverLog.logSystem("STARTUP", "java version " + System.getProperty("java.version", "no-java-version")); serverLog.logSystem("STARTUP", "Application Root Path: " + homePath.toString()); // create data folder File dataFolder = new File(homePath, "DATA"); if (!(dataFolder.exists())) dataFolder.mkdir(); plasmaSwitchboard sb = new plasmaSwitchboard(homePath, "yacy.init", "DATA/SETTINGS/httpProxy.conf"); sb.setConfig("version", vString); sb.setConfig("vdate", vDATE); sb.setConfig("applicationRoot", homePath); sb.setConfig("startupTime", "" + startup); serverLog.logSystem("STARTUP", "YACY Version: " + vString + ", Built " + vDATE); // read environment //new int port = Integer.parseInt(sb.getConfig("port", "8080")); int httpdLoglevel = Integer.parseInt(sb.getConfig("httpdLoglevel", "2")); int timeout = Integer.parseInt(sb.getConfig("httpdTimeout", "60000")); if (timeout < 60000) timeout = 60000; int maxSessions = Integer.parseInt(sb.getConfig("httpdMaxSessions", "100")); // hardcoded, forced, temporary value-migration sb.setConfig("htTemplatePath", "htroot/env/templates"); // create some directories File htRootPath = new File(sb.getRootPath(), sb.getConfig("htRootPath", "htroot")); File htDocsPath = new File(sb.getRootPath(), sb.getConfig("htDocsPath", "DATA/HTDOCS")); File htTemplatePath = new File(sb.getRootPath(), sb.getConfig("htTemplatePath","htdocs")); if (!(htDocsPath.exists())) htDocsPath.mkdir(); File htdocsDefaultReadme = new File(htDocsPath, "readme.txt"); if (!(htdocsDefaultReadme.exists())) try {serverFileUtils.write(( "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..yacy or\r\n" + "http://:/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://.yacy/\r\n" + "\r\n").getBytes(), htdocsDefaultReadme);} catch (IOException e) { System.out.println("Error creating htdocs readme: " + e.getMessage()); } File wwwDefaultPath = new File(htDocsPath, "www"); if (!(wwwDefaultPath.exists())) wwwDefaultPath.mkdir(); File wwwDefaultClass = new File(wwwDefaultPath, "welcome.class"); //if ((!(wwwDefaultClass.exists())) || (wwwDefaultClass.length() != (new File(htRootPath, "htdocsdefault/welcome.class")).length())) try { if((new File(htRootPath, "htdocsdefault/welcome.java")).exists()) serverFileUtils.copy(new File(htRootPath, "htdocsdefault/welcome.java"), new File(wwwDefaultPath, "welcome.java")); serverFileUtils.copy(new File(htRootPath, "htdocsdefault/welcome.class"), wwwDefaultClass); serverFileUtils.copy(new File(htRootPath, "htdocsdefault/welcome.html"), new File(wwwDefaultPath, "welcome.html")); //} catch (IOException e) {} File shareDefaultPath = new File(htDocsPath, "share"); if (!(shareDefaultPath.exists())) shareDefaultPath.mkdir(); File shareDefaultClass = new File(shareDefaultPath, "dir.class"); //if ((!(shareDefaultClass.exists())) || (shareDefaultClass.length() != (new File(htRootPath, "htdocsdefault/dir.class")).length())) try { if((new File(htRootPath, "htdocsdefault/dir.java")).exists()) serverFileUtils.copy(new File(htRootPath, "htdocsdefault/dir.java"), new File(shareDefaultPath, "dir.java")); serverFileUtils.copy(new File(htRootPath, "htdocsdefault/dir.class"), shareDefaultClass); serverFileUtils.copy(new File(htRootPath, "htdocsdefault/dir.html"), new File(shareDefaultPath, "dir.html")); //} catch (IOException e) {} // set preset accounts/passwords String acc; if ((acc = sb.getConfig("proxyAccount", "")).length() > 0) { sb.setConfig("proxyAccountBase64MD5", serverCodings.standardCoder.encodeMD5Hex(serverCodings.standardCoder.encodeBase64String(acc))); sb.setConfig("proxyAccount", ""); } if ((acc = sb.getConfig("serverAccount", "")).length() > 0) { sb.setConfig("serverAccountBase64MD5", serverCodings.standardCoder.encodeMD5Hex(serverCodings.standardCoder.encodeBase64String(acc))); sb.setConfig("serverAccount", ""); } if ((acc = sb.getConfig("adminAccount", "")).length() > 0) { sb.setConfig("adminAccountBase64MD5", serverCodings.standardCoder.encodeMD5Hex(serverCodings.standardCoder.encodeBase64String(acc))); sb.setConfig("adminAccount", ""); } // fix unsafe old passwords if ((acc = sb.getConfig("proxyAccountBase64", "")).length() > 0) { sb.setConfig("proxyAccountBase64MD5", serverCodings.standardCoder.encodeMD5Hex(acc)); sb.setConfig("proxyAccountBase64", ""); } if ((acc = sb.getConfig("serverAccountBase64", "")).length() > 0) { sb.setConfig("serverAccountBase64MD5", serverCodings.standardCoder.encodeMD5Hex(acc)); sb.setConfig("serverAccountBase64", ""); } if ((acc = sb.getConfig("adminAccountBase64", "")).length() > 0) { sb.setConfig("adminAccountBase64MD5", serverCodings.standardCoder.encodeMD5Hex(acc)); sb.setConfig("adminAccountBase64", ""); } if ((acc = sb.getConfig("uploadAccountBase64", "")).length() > 0) { sb.setConfig("uploadAccountBase64MD5", serverCodings.standardCoder.encodeMD5Hex(acc)); sb.setConfig("uploadAccountBase64", ""); } if ((acc = sb.getConfig("downloadAccountBase64", "")).length() > 0) { sb.setConfig("downloadAccountBase64MD5", serverCodings.standardCoder.encodeMD5Hex(acc)); sb.setConfig("downloadAccountBase64", ""); } // init parser de.anomic.plasma.plasmaParser.initMediaExt(sb.getConfig("mediaExt","")); // start main threads try { httpd protocolHandler = new httpd(sb, new httpdFileHandler(sb), new httpdProxyHandler(sb)); serverCore server = new serverCore(port, maxSessions /*sessions*/, timeout /*control socket timeout in milliseconds*/, true /* terminate sleeping threads */, true /* block attacks (wrong protocol) */, protocolHandler /*command class*/, sb, 30000 /*command max length incl. GET args*/, httpdLoglevel /*loglevel*/); server.setName("httpd:"+port); if (server == null) { serverLog.logFailure("STARTUP", "Failed to start server. Probably port " + port + " already in use."); } else { // first start the server sb.deployThread("10_httpd", "HTTPD Server/Proxy", "the HTTPD, used as web server and proxy", server, 0, 0, 0); //server.start(); // open the browser window boolean browserPopUpTrigger = sb.getConfig("browserPopUpTrigger", "true").equals("true"); if (browserPopUpTrigger) { String browserPopUpPage = sb.getConfig("browserPopUpPage", "Status.html"); String browserPopUpApplication = sb.getConfig("browserPopUpApplication", "netscape"); serverSystem.openBrowser("http://localhost:" + port + "/" + browserPopUpPage, browserPopUpApplication); } // registering shutdown hook serverLog.logSystem("STARTUP", "Registering Shutdown Hook"); Runtime run = Runtime.getRuntime(); run.addShutdownHook(new shutdownHookThread(Thread.currentThread(), sb)); // wait for server shutdown try { sb.waitForShutdown(); } catch (Exception e) { serverLog.logError("MAIN CONTROL LOOP", "PANIK: " + e.getMessage()); e.printStackTrace(); } // shut down serverLog.logSystem("SHUTDOWN", "catched termination signal"); server.terminate(false); server.interrupt(); if (server.isAlive()) try { httpc.wget(new URL("http://localhost:" + port), 1000, null, null, null, 0); // kick server serverLog.logSystem("SHUTDOWN", "sent termination signal to server socket"); } catch (IOException ee) { serverLog.logSystem("SHUTDOWN", "termination signal to server socket missed (server shutdown, ok)"); } // idle until the processes are down while (server.isAlive()) { Thread.currentThread().sleep(2000); // wait a while } serverLog.logSystem("SHUTDOWN", "server has terminated"); sb.close(); } } catch (Exception e) { serverLog.logError("STARTUP", "" + e); e.printStackTrace(); //System.exit(1); } } catch (Exception ee) { serverLog.logFailure("STARTUP", "FATAL ERROR: " + ee.getMessage()); ee.printStackTrace(); } serverLog.logSystem("SHUTDOWN", "goodbye. (this is the last line)"); try { System.exit(0); } catch (Exception e) {} // was once stopped by de.anomic.net.ftpc$sm.checkExit(ftpc.java:1790) } private static Properties configuration(String mes, String homePath) { serverLog.logSystem(mes, "Application Root Path: " + homePath.toString()); // read data folder File dataFolder = new File(homePath, "DATA"); if (!(dataFolder.exists())) { serverLog.logError(mes, "Application was never started or root path wrong."); System.exit(-1); } Properties config = new Properties(); try { config.load(new FileInputStream(new File(homePath, "DATA/SETTINGS/httpProxy.conf"))); } catch (FileNotFoundException e) { serverLog.logError(mes, "could not find configuration file."); System.exit(-1); } catch (IOException e) { serverLog.logError(mes, "could not read configuration file."); System.exit(-1); } return config; } static void shutdown(String homePath) { // start up System.out.println(copyright); System.out.println(hline); Properties config = configuration("REMOTE-SHUTDOWN", homePath); // read port int port = Integer.parseInt((String) config.get("port")); // read password String encodedPassword = (String) config.get("adminAccountBase64MD5"); if (encodedPassword == null) encodedPassword = ""; // not defined // send 'wget' to web interface httpHeader requestHeader = new httpHeader(); requestHeader.put("Authorization", "realm=" + encodedPassword); // for http-authentify try { httpc con = httpc.getInstance("localhost", port, 10000, false); httpc.response res = con.GET("Steering.html?shutdown=", requestHeader); // read response if (res.status.startsWith("2")) { serverLog.logSystem("REMOTE-SHUTDOWN", "YACY accepted shutdown command."); serverLog.logSystem("REMOTE-SHUTDOWN", "Stand by for termination, which may last some seconds."); ByteArrayOutputStream bos = new ByteArrayOutputStream(); res.writeContent(bos, null); con.close(); } else { serverLog.logError("REMOTE-SHUTDOWN", "error response from YACY socket: " + res.status); System.exit(-1); } } catch (IOException e) { serverLog.logError("REMOTE-SHUTDOWN", "could not establish connection to YACY socket: " + e.getMessage()); System.exit(-1); } // finished serverLog.logSystem("REMOTE-SHUTDOWN", "SUCCESSFULLY FINISHED remote-shutdown:"); serverLog.logSystem("REMOTE-SHUTDOWN", "YACY will terminate after working off all enqueued tasks."); } private static void genWordstat(String homePath) { // start up System.out.println(copyright); System.out.println(hline); Properties config = configuration("GEN-WORDSTAT", homePath); // load words serverLog.logInfo("GEN-WORDSTAT", "loading words..."); HashMap words = loadWordMap(new File(homePath, "yacy.words")); // find all hashes serverLog.logInfo("GEN-WORDSTAT", "searching all word-hash databases..."); File dbRoot = new File(homePath, config.getProperty("dbPath")); enumerateFiles ef = new enumerateFiles(new File(dbRoot, "WORDS"), true, false, true); File f; String h; kelondroMScoreCluster hs = new kelondroMScoreCluster(); while (ef.hasMoreElements()) { f = (File) ef.nextElement(); h = f.getName().substring(0, plasmaURL.urlHashLength); hs.addScore(h, (int) f.length()); } // list the hashes in reverse order serverLog.logInfo("GEN-WORDSTAT", "listing words in reverse size order..."); String w; Iterator i = hs.scores(false); while (i.hasNext()) { h = (String) i.next(); w = (String) words.get(h); if (w == null) System.out.print("# " + h); else System.out.print(w); System.out.println(" - " + hs.getScore(h)); } // finished serverLog.logSystem("GEN-WORDSTAT", "FINISHED"); } private static HashMap loadWordMap(File wordlist) { // returns a hash-word - Relation HashMap wordmap = new HashMap(); try { String word; BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(wordlist))); while ((word = br.readLine()) != null) wordmap.put(plasmaWordIndexEntry.word2hash(word),word); br.close(); } catch (IOException e) {} return wordmap; } private static HashSet loadWordSet(File wordlist) { // returns a set of words HashSet wordset = new HashSet(); try { String word; BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(wordlist))); while ((word = br.readLine()) != null) wordset.add(word); br.close(); } catch (IOException e) {} return wordset; } private static void cleanwordlist(String wordlist, int minlength, int maxlength) { // start up System.out.println(copyright); System.out.println(hline); serverLog.logSystem("CLEAN-WORDLIST", "START"); String word; TreeSet wordset = new TreeSet(); int count = 0; try { BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(wordlist))); String seps = "' .,:/-&"; while ((word = br.readLine()) != null) { word = word.toLowerCase().trim(); for (int i = 0; i < seps.length(); i++) { if (word.indexOf(seps.charAt(i)) >= 0) word = word.substring(0, word.indexOf(seps.charAt(i))); } if ((word.length() >= minlength) && (word.length() <= maxlength)) wordset.add(word); count++; } br.close(); if (wordset.size() != count) { count = count - wordset.size(); BufferedWriter bw = new BufferedWriter(new PrintWriter(new FileWriter(wordlist))); while (wordset.size() > 0) { word = (String) wordset.first(); bw.write(word + "\n"); wordset.remove(word); } bw.close(); serverLog.logInfo("CLEAN-WORDLIST", "shrinked wordlist by " + count + " words."); } else { serverLog.logInfo("CLEAN-WORDLIST", "not necessary to change wordlist"); } } catch (IOException e) { serverLog.logError("CLEAN-WORDLIST", "ERROR: " + e.getMessage()); System.exit(-1); } // finished serverLog.logSystem("CLEAN-WORDLIST", "FINISHED"); } private static void deleteStopwords(String homePath) { // start up System.out.println(copyright); System.out.println(hline); serverLog.logSystem("DELETE-STOPWORDS", "START"); Properties config = configuration("DELETE-STOPWORDS", homePath); File dbRoot = new File(homePath, config.getProperty("dbPath")); // load stopwords HashSet stopwords = loadWordSet(new File(homePath, "yacy.stopwords")); serverLog.logInfo("DELETE-STOPWORDS", "loaded stopwords, " + stopwords.size() + " entries in list, starting scanning"); // find all hashes File f; String w; int count = 0; long thisamount, totalamount = 0; Iterator i = stopwords.iterator(); while (i.hasNext()) { w = (String) i.next(); f = plasmaWordIndexEntity.wordHash2path(dbRoot, plasmaWordIndexEntry.word2hash(w)); if (f.exists()) { thisamount = f.length(); if (f.delete()) { count++; totalamount += thisamount; serverLog.logInfo("DELETE-STOPWORDS", "deleted index for word '" + w + "', " + thisamount + " bytes"); } } } serverLog.logInfo("DELETE-STOPWORDS", "TOTALS: deleted " + count + " indexes; " + (totalamount / 1024) + " kbytes"); // finished serverLog.logSystem("DELETE-STOPWORDS", "FINISHED"); } // application wrapper public static void main(String args[]) { String applicationRoot = System.getProperty("user.dir"); if ((args.length >= 1) && ((args[0].equals("-startup")) || (args[0].equals("-start")))) { // normal start-up of yacy if (args.length == 2) applicationRoot= args[1]; startup(applicationRoot); } else if ((args.length >= 1) && ((args[0].equals("-shutdown")) || (args[0].equals("-stop")))) { // normal shutdown of yacy if (args.length == 2) applicationRoot= args[1]; shutdown(applicationRoot); } else if ((args.length >= 1) && (args[0].equals("-deletestopwords"))) { // delete those words in the index that are listed in the stopwords file if (args.length == 2) applicationRoot= args[1]; deleteStopwords(applicationRoot); } else if ((args.length >= 1) && (args[0].equals("-genwordstat"))) { // this can help to create a stop-word list // to use this, you need a 'yacy.words' file in the root path // start this with "java -classpath classes yacy -genwordstat []" if (args.length == 2) applicationRoot= args[1]; genWordstat(applicationRoot); } else if ((args.length == 4) && (args[0].equals("-cleanwordlist"))) { // this can be used to organize and clean a word-list // start this with "java -classpath classes yacy -cleanwordlist " int minlength = Integer.parseInt(args[2]); int maxlength = Integer.parseInt(args[3]); cleanwordlist(args[1], minlength, maxlength); } else { if (args.length == 1) applicationRoot= args[0]; startup(applicationRoot); } } } class shutdownHookThread extends Thread { private plasmaSwitchboard sb = null; private Thread mainThread = null; public shutdownHookThread(Thread mainThread, plasmaSwitchboard sb) { this.sb = sb; this.mainThread = mainThread; } public void run() { try { if (!this.sb.isTerminated()) { serverLog.logSystem("SHUTDOWN","Shutdown via shutdown hook."); // sending the yacy main thread a shutdown signal this.sb.terminate(); // waiting for the yacy thread to finish execution this.mainThread.join(); } } catch (Exception e) { e.printStackTrace(); } } }