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1668 lines
80 KiB
1668 lines
80 KiB
// httpdProxyHandler.java
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// -----------------------
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// part of YACY
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// (C) by Michael Peter Christen; mc@anomic.de
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// first published on http://www.anomic.de
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// Frankfurt, Germany, 2004
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//
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// $LastChangedDate$
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// $LastChangedRevision$
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// $LastChangedBy$
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// Using this software in any meaning (reading, learning, copying, compiling,
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// running) means that you agree that the Author(s) is (are) not responsible
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// for cost, loss of data or any harm that may be caused directly or indirectly
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// by usage of this softare or this documentation. The usage of this software
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// is on your own risk. The installation and usage (starting/running) of this
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// software may allow other people or application to access your computer and
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// any attached devices and is highly dependent on the configuration of the
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// software which must be done by the user of the software; the author(s) is
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// (are) also not responsible for proper configuration and usage of the
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// software, even if provoked by documentation provided together with
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// the software.
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//
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// Any changes to this file according to the GPL as documented in the file
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// gpl.txt aside this file in the shipment you received can be done to the
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// lines that follows this copyright notice here, but changes must not be
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// done inside the copyright notive above. A re-distribution must contain
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// the intact and unchanged copyright notice.
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// Contributions and changes to the program code must be marked as such.
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// Contributions:
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// [AS] Alexander Schier: Blacklist (404 response for AGIS hosts)
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// [TL] Timo Leise: url-wildcards for blacklists
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/*
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Class documentation:
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This class is a servlet to the httpd daemon. It is accessed each time
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an URL in a GET, HEAD or POST command contains the whole host information
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or a host is given in the header host field of an HTTP/1.0 / HTTP/1.1
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command.
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Transparency is maintained, whenever appropriate. We change header
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atributes if necessary for the indexing mechanism; i.e. we do not
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support gzip-ed encoding. We also do not support unrealistic
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'expires' values that would force a cache to be flushed immediately
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pragma non-cache attributes are supported
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*/
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package de.anomic.http;
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import java.io.BufferedReader;
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import java.io.File;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.io.OutputStream;
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import java.io.PrintWriter;
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import java.io.PushbackInputStream;
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import java.io.Writer;
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import java.net.BindException;
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import java.net.ConnectException;
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import java.net.InetAddress;
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import java.net.MalformedURLException;
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import java.net.NoRouteToHostException;
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import java.net.Socket;
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import java.net.SocketTimeoutException;
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import java.net.UnknownHostException;
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import java.util.Arrays;
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import java.util.Date;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.Properties;
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import java.util.logging.FileHandler;
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import java.util.logging.Level;
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import java.util.logging.LogManager;
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import java.util.logging.Logger;
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import java.util.zip.GZIPOutputStream;
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import de.anomic.htmlFilter.htmlFilterContentTransformer;
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import de.anomic.htmlFilter.htmlFilterTransformer;
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import de.anomic.htmlFilter.htmlFilterWriter;
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import de.anomic.net.URL;
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import de.anomic.plasma.plasmaHTCache;
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import de.anomic.plasma.plasmaParser;
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import de.anomic.plasma.plasmaSwitchboard;
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import de.anomic.plasma.cache.IResourceInfo;
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import de.anomic.plasma.cache.http.ResourceInfo;
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import de.anomic.plasma.urlPattern.plasmaURLPattern;
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import de.anomic.server.serverCore;
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import de.anomic.server.serverFileUtils;
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import de.anomic.server.serverObjects;
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import de.anomic.server.serverSwitch;
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import de.anomic.server.logging.serverLog;
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import de.anomic.server.logging.serverMiniLogFormatter;
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import de.anomic.yacy.yacyCore;
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public final class httpdProxyHandler extends httpdAbstractHandler implements httpdHandler {
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// static variables
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// can only be instantiated upon first instantiation of this class object
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private static plasmaSwitchboard switchboard = null;
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private static plasmaHTCache cacheManager = null;
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public static HashSet yellowList = null;
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private static int timeout = 30000;
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private static boolean yacyTrigger = true;
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public static boolean isTransparentProxy = false;
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private static Process redirectorProcess;
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private static boolean redirectorEnabled=false;
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private static PrintWriter redirectorWriter;
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private static BufferedReader redirectorReader;
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private static htmlFilterTransformer transformer = null;
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public static final String proxyUserAgent = "yacy (" + httpc.systemOST +") yacy.net";
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public static final String crawlerUserAgent = "yacybot (" + httpc.systemOST +") http://yacy.net/yacy/bot.html";
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private File htRootPath = null;
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private static boolean doAccessLogging = false;
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/**
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* Do logging configuration for special proxy access log file
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*/
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static {
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// Doing logger initialisation
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try {
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serverLog.logInfo("PROXY","Configuring proxy access logging ...");
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// getting the logging manager
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LogManager manager = LogManager.getLogManager();
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String className = httpdProxyHandler.class.getName();
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// determining if proxy access logging is enabled
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String enabled = manager.getProperty("de.anomic.http.httpdProxyHandler.logging.enabled");
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if ("true".equalsIgnoreCase(enabled)) {
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// reading out some needed configuration properties
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int limit = 1024*1024, count = 20;
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String pattern = manager.getProperty(className + ".logging.FileHandler.pattern");
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if (pattern == null) pattern = "DATA/LOG/proxyAccess%u%g.log";
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String limitStr = manager.getProperty(className + ".logging.FileHandler.limit");
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if (limitStr != null) try { limit = Integer.valueOf(limitStr).intValue(); } catch (NumberFormatException e) {}
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String countStr = manager.getProperty(className + ".logging.FileHandler.count");
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if (countStr != null) try { count = Integer.valueOf(countStr).intValue(); } catch (NumberFormatException e) {}
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// creating the proxy access logger
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Logger proxyLogger = Logger.getLogger("PROXY.access");
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proxyLogger.setUseParentHandlers(false);
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proxyLogger.setLevel(Level.FINEST);
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FileHandler txtLog = new FileHandler(pattern,limit,count,true);
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txtLog.setFormatter(new serverMiniLogFormatter());
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txtLog.setLevel(Level.FINEST);
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proxyLogger.addHandler(txtLog);
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doAccessLogging = true;
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serverLog.logInfo("PROXY","Proxy access logging configuration done." +
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"\n\tFilename: " + pattern +
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"\n\tLimit: " + limitStr +
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"\n\tCount: " + countStr);
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} else {
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serverLog.logInfo("PROXY","Proxy access logging is deactivated.");
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}
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} catch (Exception e) {
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serverLog.logSevere("PROXY","Unable to configure proxy access logging.",e);
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}
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}
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/**
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* Special logger instance for proxy access logging much similar
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* to the squid access.log file
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*/
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private final serverLog proxyLog = new serverLog("PROXY.access");
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/**
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* Reusable {@link StringBuffer} for logging
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*/
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private final StringBuffer logMessage = new StringBuffer();
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/**
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* Reusable {@link StringBuffer} to generate the useragent string
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*/
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private final StringBuffer userAgentStr = new StringBuffer();
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// class methods
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public httpdProxyHandler(serverSwitch sb) {
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// creating a logger
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this.theLogger = new serverLog("PROXY");
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if (switchboard == null) {
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switchboard = (plasmaSwitchboard) sb;
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cacheManager = switchboard.getCacheManager();
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isTransparentProxy = Boolean.valueOf(switchboard.getConfig("isTransparentProxy","false")).booleanValue();
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// // load remote proxy data
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// remoteProxyHost = switchboard.getConfig("remoteProxyHost","");
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// try {
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// remoteProxyPort = Integer.parseInt(switchboard.getConfig("remoteProxyPort","3128"));
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// } catch (NumberFormatException e) {
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// remoteProxyPort = 3128;
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// }
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// remoteProxyUse = switchboard.getConfig("remoteProxyUse","false").equals("true");
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// remoteProxyNoProxy = switchboard.getConfig("remoteProxyNoProxy","");
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// remoteProxyNoProxyPatterns = remoteProxyNoProxy.split(",");
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// set timeout
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timeout = Integer.parseInt(switchboard.getConfig("proxy.clientTimeout", "10000"));
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// create a htRootPath: system pages
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if (htRootPath == null) {
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htRootPath = new File(switchboard.getRootPath(), switchboard.getConfig("htRootPath","htroot"));
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if (!(htRootPath.exists())) htRootPath.mkdir();
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}
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// load a transformer
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transformer = new htmlFilterContentTransformer();
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transformer.init(new File(switchboard.getRootPath(), switchboard.getConfig("plasmaBlueList", "")).toString());
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String f;
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// load the yellow-list
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f = switchboard.getConfig("proxyYellowList", null);
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if (f != null) {
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yellowList = serverFileUtils.loadList(new File(f));
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this.theLogger.logConfig("loaded yellow-list from file " + f + ", " + yellowList.size() + " entries");
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} else {
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yellowList = new HashSet();
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}
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}
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String redirectorPath=switchboard.getConfig("externalRedirector", "");
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if(redirectorPath.length() >0 && redirectorEnabled==false){
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try {
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redirectorProcess=Runtime.getRuntime().exec(redirectorPath);
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redirectorWriter = new PrintWriter(redirectorProcess.getOutputStream());
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redirectorReader = new BufferedReader(new InputStreamReader(redirectorProcess.getInputStream()));
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redirectorEnabled=true;
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} catch (IOException e) {
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System.out.println("redirector not Found");
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}
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}
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}
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private static String domain(String host) {
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String domain = host;
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int pos = domain.lastIndexOf(".");
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if (pos >= 0) {
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// truncate from last part
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domain = domain.substring(0, pos);
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pos = domain.lastIndexOf(".");
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if (pos >= 0) {
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// truncate from first part
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domain = domain.substring(pos + 1);
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}
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}
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return domain;
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}
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public void handleOutgoingCookies(httpHeader requestHeader, String targethost, String clienthost) {
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/*
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The syntax for the header is:
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cookie = "Cookie:" cookie-version
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1*((";" | ",") cookie-value)
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cookie-value = NAME "=" VALUE [";" path] [";" domain]
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cookie-version = "$Version" "=" value
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NAME = attr
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VALUE = value
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path = "$Path" "=" value
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domain = "$Domain" "=" value
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*/
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if (requestHeader.containsKey(httpHeader.COOKIE)) {
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Object[] entry = new Object[]{new Date(), clienthost, requestHeader.getMultiple(httpHeader.COOKIE)};
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switchboard.outgoingCookies.put(targethost, entry);
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}
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}
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public void handleIncomingCookies(httpHeader respondHeader, String serverhost, String targetclient) {
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/*
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The syntax for the Set-Cookie response header is
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set-cookie = "Set-Cookie:" cookies
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cookies = 1#cookie
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cookie = NAME "=" VALUE *(";" cookie-av)
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NAME = attr
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VALUE = value
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cookie-av = "Comment" "=" value
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| "Domain" "=" value
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| "Max-Age" "=" value
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| "Path" "=" value
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| "Secure"
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| "Version" "=" 1*DIGIT
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*/
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if (respondHeader.containsKey(httpHeader.SET_COOKIE)) {
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Object[] entry = new Object[]{new Date(), targetclient, respondHeader.getMultiple(httpHeader.SET_COOKIE)};
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switchboard.incomingCookies.put(serverhost, entry);
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}
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}
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/**
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* @param conProp a collection of properties about the connection, like URL
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* @param requestHeader The header lines of the connection from the request
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* @param respond the OutputStream to the client
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* @see de.anomic.http.httpdHandler#doGet(java.util.Properties, de.anomic.http.httpHeader, java.io.OutputStream)
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*/
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public void doGet(Properties conProp, httpHeader requestHeader, OutputStream respond) throws IOException {
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this.connectionProperties = conProp;
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try {
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// remembering the starting time of the request
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final Date requestDate = new Date(); // remember the time...
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this.connectionProperties.put(httpHeader.CONNECTION_PROP_REQUEST_START,new Long(requestDate.getTime()));
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if (yacyTrigger) de.anomic.yacy.yacyCore.triggerOnlineAction();
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switchboard.proxyLastAccess = System.currentTimeMillis();
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// using an ByteCount OutputStream to count the send bytes (needed for the logfile)
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respond = new httpdByteCountOutputStream(respond,conProp.getProperty(httpHeader.CONNECTION_PROP_REQUESTLINE).length() + 2);
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String host = conProp.getProperty(httpHeader.CONNECTION_PROP_HOST);
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String path = conProp.getProperty(httpHeader.CONNECTION_PROP_PATH); // always starts with leading '/'
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final String args = conProp.getProperty(httpHeader.CONNECTION_PROP_ARGS); // may be null if no args were given
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final String ip = conProp.getProperty(httpHeader.CONNECTION_PROP_CLIENTIP); // the ip from the connecting peer
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int pos=0;
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int port=0;
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URL url = null;
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try {
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url = httpHeader.getRequestURL(conProp);
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//redirector
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if (redirectorEnabled){
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synchronized(redirectorProcess){
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redirectorWriter.println(url.toString());
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redirectorWriter.flush();
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}
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String newUrl=redirectorReader.readLine();
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if(!newUrl.equals("")){
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try{
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url=new URL(newUrl);
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}catch(MalformedURLException e){}//just keep the old one
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}
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conProp.setProperty(httpHeader.CONNECTION_PROP_HOST, url.getHost()+":"+url.getPort());
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conProp.setProperty(httpHeader.CONNECTION_PROP_PATH, url.getPath());
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requestHeader.put(httpHeader.HOST, url.getHost()+":"+url.getPort());
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requestHeader.put(httpHeader.CONNECTION_PROP_PATH, url.getPath());
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}
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} catch (MalformedURLException e) {
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String errorMsg = "ERROR: internal error with url generation: host=" +
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host + ", port=" + port + ", path=" + path + ", args=" + args;
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serverLog.logSevere("PROXY", errorMsg);
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httpd.sendRespondError(conProp,respond,4,501,null,errorMsg,e);
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return;
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}
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if ((pos = host.indexOf(":")) < 0) {
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port = 80;
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} else {
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port = Integer.parseInt(host.substring(pos + 1));
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host = host.substring(0, pos);
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}
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String ext;
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if ((pos = path.lastIndexOf('.')) < 0) {
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ext = "";
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} else {
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ext = path.substring(pos + 1).toLowerCase();
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}
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// check the blacklist
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// blacklist idea inspired by [AS]:
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// respond a 404 for all AGIS ("all you get is shit") servers
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String hostlow = host.toLowerCase();
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if (args != null) { path = path + "?" + args; }
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if (plasmaSwitchboard.urlBlacklist.isListed(plasmaURLPattern.BLACKLIST_PROXY, hostlow, path)) {
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httpd.sendRespondError(conProp,respond,4,403,null,
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"URL '" + hostlow + "' blocked by yacy proxy (blacklisted)",null);
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this.theLogger.logInfo("AGIS blocking of host '" + hostlow + "'");
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return;
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}
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// handle outgoing cookies
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handleOutgoingCookies(requestHeader, host, ip);
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// set another userAgent, if not yellowlisted
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if ((yellowList != null) && (!(yellowList.contains(domain(hostlow))))) {
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// change the User-Agent
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requestHeader.put(httpHeader.USER_AGENT, generateUserAgent(requestHeader));
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}
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// setting the X-Forwarded-For Header
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if (switchboard.getConfigBool("proxy.sendXForwardedForHeader", true)) {
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requestHeader.put(httpHeader.X_FORWARDED_FOR,conProp.getProperty(httpHeader.CONNECTION_PROP_CLIENTIP));
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}
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// decide wether to use a cache entry or connect to the network
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File cacheFile = cacheManager.getCachePath(url);
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httpHeader cachedResponseHeader = null;
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ResourceInfo cachedResInfo = (ResourceInfo) cacheManager.loadResourceInfo(url);
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if (cachedResInfo != null) {
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// set the new request header (needed by function shallUseCacheForProxy)
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cachedResInfo.setRequestHeader(requestHeader);
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// get the cached response header
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cachedResponseHeader = cachedResInfo.getResponseHeader();
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}
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boolean cacheExists = cacheFile.isFile() && (cachedResponseHeader != null);
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// why are files unzipped upon arrival? why not zip all files in cache?
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// This follows from the following premises
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// (a) no file shall be unzip-ed more than once to prevent unnessesary computing time
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// (b) old cache entries shall be comparable with refill-entries to detect/distiguish case 3+4
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// (c) the indexing mechanism needs files unzip-ed, a schedule could do that later
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// case b and c contradicts, if we use a scheduler, because files in a stale cache would be unzipped
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// and the newly arrival would be zipped and would have to be unzipped upon load. But then the
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// scheduler is superfluous. Therefore the only reminding case is
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// (d) cached files shall be either all zipped or unzipped
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|
// case d contradicts with a, because files need to be unzipped for indexing. Therefore
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// the only remaining case is to unzip files right upon load. Thats what we do here.
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// finally use existing cache if appropriate
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|
// here we must decide weather or not to save the data
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// to a cache
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|
// we distinguish four CACHE STATE cases:
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// 1. cache fill
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// 2. cache fresh - no refill
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// 3. cache stale - refill - necessary
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// 4. cache stale - refill - superfluous
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// in two of these cases we trigger a scheduler to handle newly arrived files:
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// case 1 and case 3
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plasmaHTCache.Entry cacheEntry = (cachedResponseHeader == null) ? null :
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cacheManager.newEntry(
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requestDate, // init date
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0, // crawling depth
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|
url, // url
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"", // name of the url is unknown
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|
//requestHeader, // request headers
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"200 OK", // request status
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//cachedResponseHeader, // response headers
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cachedResInfo,
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null, // initiator
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switchboard.defaultProxyProfile // profile
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|
);
|
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if (yacyCore.getOnlineMode() == 0) {
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if (cacheExists) {
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fulfillRequestFromCache(conProp,url,ext,requestHeader,cachedResponseHeader,cacheFile,respond);
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|
} else {
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httpd.sendRespondError(conProp,respond,4,404,null,"URL not availabe in Cache",null);
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}
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|
} else if (cacheExists && cacheEntry.shallUseCacheForProxy()) {
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fulfillRequestFromCache(conProp,url,ext,requestHeader,cachedResponseHeader,cacheFile,respond);
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|
} else {
|
|
fulfillRequestFromWeb(conProp,url,ext,requestHeader,cachedResponseHeader,cacheFile,respond);
|
|
}
|
|
|
|
} catch (Exception e) {
|
|
try {
|
|
String exTxt = e.getMessage();
|
|
if ((exTxt!=null)&&(exTxt.startsWith("Socket closed"))) {
|
|
this.forceConnectionClose();
|
|
} else if (!conProp.containsKey(httpHeader.CONNECTION_PROP_PROXY_RESPOND_HEADER)) {
|
|
String errorMsg = "Unexpected Error. " + e.getClass().getName() + ": " + e.getMessage();
|
|
httpd.sendRespondError(conProp,respond,4,501,null,errorMsg,e);
|
|
this.theLogger.logSevere(errorMsg);
|
|
} else {
|
|
this.forceConnectionClose();
|
|
}
|
|
} catch (Exception ee) {
|
|
this.forceConnectionClose();
|
|
}
|
|
} finally {
|
|
try { respond.flush(); } catch (Exception e) {}
|
|
if (respond instanceof httpdByteCountOutputStream) ((httpdByteCountOutputStream)respond).finish();
|
|
|
|
this.connectionProperties.put(httpHeader.CONNECTION_PROP_REQUEST_END,new Long(System.currentTimeMillis()));
|
|
this.connectionProperties.put(httpHeader.CONNECTION_PROP_PROXY_RESPOND_SIZE,new Long(((httpdByteCountOutputStream)respond).getCount()));
|
|
this.logProxyAccess();
|
|
}
|
|
}
|
|
|
|
private void fulfillRequestFromWeb(Properties conProp, URL url,String ext, httpHeader requestHeader, httpHeader cachedResponseHeader, File cacheFile, OutputStream respond) {
|
|
|
|
GZIPOutputStream gzippedOut = null;
|
|
httpChunkedOutputStream chunkedOut = null;
|
|
Object hfos = null;
|
|
|
|
httpc remote = null;
|
|
httpc.response res = null;
|
|
try {
|
|
|
|
String host = conProp.getProperty(httpHeader.CONNECTION_PROP_HOST);
|
|
String path = conProp.getProperty(httpHeader.CONNECTION_PROP_PATH); // always starts with leading '/'
|
|
String args = conProp.getProperty(httpHeader.CONNECTION_PROP_ARGS); // may be null if no args were given
|
|
String ip = conProp.getProperty(httpHeader.CONNECTION_PROP_CLIENTIP); // the ip from the connecting peer
|
|
String httpVer = conProp.getProperty(httpHeader.CONNECTION_PROP_HTTP_VER); // the ip from the connecting peer
|
|
|
|
int port, pos;
|
|
if ((pos = host.indexOf(":")) < 0) {
|
|
port = 80;
|
|
} else {
|
|
port = Integer.parseInt(host.substring(pos + 1));
|
|
host = host.substring(0, pos);
|
|
}
|
|
|
|
// resolve yacy and yacyh domains
|
|
String yAddress = yacyCore.seedDB.resolveYacyAddress(host);
|
|
|
|
// re-calc the url path
|
|
String remotePath = (args == null) ? path : (path + "?" + args); // with leading '/'
|
|
|
|
// attach possible yacy-sublevel-domain
|
|
if ((yAddress != null) &&
|
|
((pos = yAddress.indexOf("/")) >= 0) &&
|
|
(!(remotePath.startsWith("/env"))) // this is the special path, staying always at root-level
|
|
) remotePath = yAddress.substring(pos) + remotePath;
|
|
|
|
// open the connection
|
|
remote = (yAddress == null) ? newhttpc(host, port, timeout) : newhttpc(yAddress, timeout);
|
|
|
|
// removing hop by hop headers
|
|
this.removeHopByHopHeaders(requestHeader);
|
|
|
|
// adding additional headers
|
|
setViaHeader(requestHeader, httpVer);
|
|
|
|
// send request
|
|
res = remote.GET(remotePath, requestHeader);
|
|
conProp.put(httpHeader.CONNECTION_PROP_CLIENT_REQUEST_HEADER,requestHeader);
|
|
|
|
// determine if it's an internal error of the httpc
|
|
if (res.responseHeader.size() == 0) {
|
|
throw new Exception(res.statusText);
|
|
}
|
|
|
|
// if the content length is not set we have to use chunked transfer encoding
|
|
long contentLength = res.responseHeader.contentLength();
|
|
if (contentLength < 0) {
|
|
// according to http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
|
|
// a 204,304 message must not contain a message body.
|
|
// Therefore we need to set the content-length to 0.
|
|
if (res.status.startsWith("204") ||
|
|
res.status.startsWith("304")) {
|
|
res.responseHeader.put(httpHeader.CONTENT_LENGTH,"0");
|
|
} else {
|
|
if (httpVer.equals(httpHeader.HTTP_VERSION_0_9) || httpVer.equals(httpHeader.HTTP_VERSION_1_0)) {
|
|
conProp.setProperty(httpHeader.CONNECTION_PROP_PERSISTENT,"close");
|
|
} else {
|
|
chunkedOut = new httpChunkedOutputStream(respond);
|
|
}
|
|
res.responseHeader.remove(httpHeader.CONTENT_LENGTH);
|
|
}
|
|
}
|
|
|
|
// if (((String)requestHeader.get(httpHeader.ACCEPT_ENCODING,"")).indexOf("gzip") != -1) {
|
|
// zipped = new GZIPOutputStream((chunked != null) ? chunked : respond);
|
|
// res.responseHeader.put(httpHeader.CONTENT_ENCODING, "gzip");
|
|
// res.responseHeader.remove(httpHeader.CONTENT_LENGTH);
|
|
// }
|
|
|
|
// the cache does either not exist or is (supposed to be) stale
|
|
long sizeBeforeDelete = -1;
|
|
if ((cacheFile.isFile()) && (cachedResponseHeader != null)) {
|
|
// delete the cache
|
|
sizeBeforeDelete = cacheFile.length();
|
|
cacheManager.deleteFile(url);
|
|
conProp.setProperty(httpHeader.CONNECTION_PROP_PROXY_RESPOND_CODE,"TCP_REFRESH_MISS");
|
|
}
|
|
|
|
// reserver cache entry
|
|
Date requestDate = new Date(((Long)conProp.get(httpHeader.CONNECTION_PROP_REQUEST_START)).longValue());
|
|
IResourceInfo resInfo = new ResourceInfo(url,requestHeader,res.responseHeader);
|
|
plasmaHTCache.Entry cacheEntry = cacheManager.newEntry(
|
|
requestDate,
|
|
0,
|
|
url,
|
|
"",
|
|
//requestHeader,
|
|
res.status,
|
|
//res.responseHeader,
|
|
resInfo,
|
|
null,
|
|
switchboard.defaultProxyProfile
|
|
);
|
|
|
|
// handle file types and make (possibly transforming) output stream
|
|
if (
|
|
(!transformer.isIdentityTransformer()) &&
|
|
(plasmaParser.supportedRealTimeContent(url,res.responseHeader.mime()))
|
|
) {
|
|
// make a transformer
|
|
this.theLogger.logFine("create transformer for URL " + url);
|
|
//hfos = new htmlFilterOutputStream((gzippedOut != null) ? gzippedOut : ((chunkedOut != null)? chunkedOut : respond), null, transformer, (ext.length() == 0));
|
|
String charSet = res.responseHeader.getCharacterEncoding();
|
|
if (charSet == null) charSet = httpHeader.DEFAULT_CHARSET;
|
|
hfos = new htmlFilterWriter((gzippedOut != null) ? gzippedOut : ((chunkedOut != null)? chunkedOut : respond),charSet, null, transformer, (ext.length() == 0));
|
|
} else {
|
|
// simply pass through without parsing
|
|
this.theLogger.logFine("create passthrough for URL " + url + ", extension '" + ext + "', mime-type '" + res.responseHeader.mime() + "'");
|
|
hfos = (gzippedOut != null) ? gzippedOut : ((chunkedOut != null)? chunkedOut : respond);
|
|
}
|
|
|
|
// handle incoming cookies
|
|
handleIncomingCookies(res.responseHeader, host, ip);
|
|
|
|
// remove hop by hop headers
|
|
this.removeHopByHopHeaders(res.responseHeader);
|
|
|
|
// adding additional headers
|
|
setViaHeader(res.responseHeader, res.httpVer);
|
|
|
|
// sending the respond header back to the client
|
|
if (chunkedOut != null) {
|
|
res.responseHeader.put(httpHeader.TRANSFER_ENCODING, "chunked");
|
|
}
|
|
|
|
httpd.sendRespondHeader(
|
|
conProp,
|
|
respond,
|
|
httpVer,
|
|
res.statusCode,
|
|
res.statusText,
|
|
res.responseHeader);
|
|
|
|
String storeError = cacheEntry.shallStoreCacheForProxy();
|
|
boolean storeHTCache = cacheEntry.profile().storeHTCache();
|
|
boolean isSupportedContent = plasmaParser.supportedContent(plasmaParser.PARSER_MODE_PROXY,cacheEntry.url(),cacheEntry.getMimeType());
|
|
if (
|
|
/*
|
|
* Now we store the response into the htcache directory if
|
|
* a) the response is cacheable AND
|
|
*/
|
|
(storeError == null) &&
|
|
/*
|
|
* b) the user has configured to use the htcache OR
|
|
* c) the content should be indexed
|
|
*/
|
|
((storeHTCache) || (isSupportedContent))
|
|
) {
|
|
// we write a new cache entry
|
|
if ((contentLength > 0) && (contentLength < 1048576)) // if the length is known and < 1 MB
|
|
{
|
|
// ok, we don't write actually into a file, only to RAM, and schedule writing the file.
|
|
byte[] cacheArray = res.writeContent(hfos,true);
|
|
this.theLogger.logFine("writeContent of " + url + " produced cacheArray = " + ((cacheArray == null) ? "null" : ("size=" + cacheArray.length)));
|
|
|
|
if (hfos instanceof htmlFilterWriter) ((htmlFilterWriter) hfos).finalize();
|
|
|
|
if (sizeBeforeDelete == -1) {
|
|
// totally fresh file
|
|
//cacheEntry.status = plasmaHTCache.CACHE_FILL; // it's an insert
|
|
cacheEntry.setCacheArray(cacheArray);
|
|
cacheManager.push(cacheEntry);
|
|
conProp.setProperty(httpHeader.CONNECTION_PROP_PROXY_RESPOND_CODE,"TCP_MISS");
|
|
} else if (sizeBeforeDelete == cacheArray.length) {
|
|
// before we came here we deleted a cache entry
|
|
cacheArray = null;
|
|
//cacheEntry.status = plasmaHTCache.CACHE_STALE_RELOAD_BAD;
|
|
//cacheManager.push(cacheEntry); // unnecessary update
|
|
conProp.setProperty(httpHeader.CONNECTION_PROP_PROXY_RESPOND_CODE,"TCP_REF_FAIL_HIT");
|
|
} else {
|
|
// before we came here we deleted a cache entry
|
|
//cacheEntry.status = plasmaHTCache.CACHE_STALE_RELOAD_GOOD;
|
|
cacheEntry.setCacheArray(cacheArray);
|
|
cacheManager.push(cacheEntry); // necessary update, write response header to cache
|
|
conProp.setProperty(httpHeader.CONNECTION_PROP_PROXY_RESPOND_CODE,"TCP_REFRESH_MISS");
|
|
}
|
|
} else {
|
|
// the file is too big to cache it in the ram, or the size is unknown
|
|
// write to file right here.
|
|
cacheFile.getParentFile().mkdirs();
|
|
res.writeContent(hfos, cacheFile);
|
|
if (hfos instanceof htmlFilterWriter) ((htmlFilterWriter) hfos).finalize();
|
|
this.theLogger.logFine("for write-file of " + url + ": contentLength = " + contentLength + ", sizeBeforeDelete = " + sizeBeforeDelete);
|
|
cacheManager.writeFileAnnouncement(cacheFile);
|
|
if (sizeBeforeDelete == -1) {
|
|
// totally fresh file
|
|
//cacheEntry.status = plasmaHTCache.CACHE_FILL; // it's an insert
|
|
cacheManager.push(cacheEntry);
|
|
conProp.setProperty(httpHeader.CONNECTION_PROP_PROXY_RESPOND_CODE,"TCP_MISS");
|
|
} else if (sizeBeforeDelete == cacheFile.length()) {
|
|
// before we came here we deleted a cache entry
|
|
//cacheEntry.status = plasmaHTCache.CACHE_STALE_RELOAD_BAD;
|
|
//cacheManager.push(cacheEntry); // unnecessary update
|
|
conProp.setProperty(httpHeader.CONNECTION_PROP_PROXY_RESPOND_CODE,"TCP_REF_FAIL_HIT");
|
|
} else {
|
|
// before we came here we deleted a cache entry
|
|
//cacheEntry.status = plasmaHTCache.CACHE_STALE_RELOAD_GOOD;
|
|
cacheManager.push(cacheEntry); // necessary update, write response header to cache
|
|
conProp.setProperty(httpHeader.CONNECTION_PROP_PROXY_RESPOND_CODE,"TCP_REFRESH_MISS");
|
|
}
|
|
// beware! all these writings will not fill the cacheEntry.cacheArray
|
|
// that means they are not available for the indexer (except they are scraped before)
|
|
}
|
|
} else {
|
|
// no caching
|
|
this.theLogger.logFine(cacheFile.toString() + " not cached." +
|
|
" StoreError=" + ((storeError==null)?"None":storeError) +
|
|
" StoreHTCache=" + storeHTCache +
|
|
" SupportetContent=" + isSupportedContent);
|
|
|
|
res.writeContent(hfos, null);
|
|
if (hfos instanceof htmlFilterWriter) ((htmlFilterWriter) hfos).finalize();
|
|
if (sizeBeforeDelete == -1) {
|
|
// no old file and no load. just data passing
|
|
//cacheEntry.status = plasmaHTCache.CACHE_PASSING;
|
|
//cacheManager.push(cacheEntry);
|
|
} else {
|
|
// before we came here we deleted a cache entry
|
|
//cacheEntry.status = plasmaHTCache.CACHE_STALE_NO_RELOAD;
|
|
//cacheManager.push(cacheEntry);
|
|
}
|
|
conProp.setProperty(httpHeader.CONNECTION_PROP_PROXY_RESPOND_CODE,"TCP_MISS");
|
|
}
|
|
|
|
if (gzippedOut != null) {
|
|
gzippedOut.finish();
|
|
}
|
|
if (chunkedOut != null) {
|
|
chunkedOut.finish();
|
|
chunkedOut.flush();
|
|
}
|
|
} catch (Exception e) {
|
|
// deleting cached content
|
|
if (cacheFile.exists()) cacheFile.delete();
|
|
handleProxyException(e,remote,conProp,respond,url);
|
|
} finally {
|
|
if (remote != null) httpc.returnInstance(remote);
|
|
}
|
|
}
|
|
|
|
|
|
private void fulfillRequestFromCache(
|
|
Properties conProp,
|
|
URL url,
|
|
String ext,
|
|
httpHeader requestHeader,
|
|
httpHeader cachedResponseHeader,
|
|
File cacheFile,
|
|
OutputStream respond
|
|
) throws IOException {
|
|
|
|
String httpVer = conProp.getProperty(httpHeader.CONNECTION_PROP_HTTP_VER);
|
|
|
|
httpChunkedOutputStream chunkedOut = null;
|
|
GZIPOutputStream gzippedOut = null;
|
|
Object hfos = null;
|
|
|
|
// we respond on the request by using the cache, the cache is fresh
|
|
try {
|
|
// remove hop by hop headers
|
|
this.removeHopByHopHeaders(cachedResponseHeader);
|
|
|
|
// adding additional headers
|
|
setViaHeader(cachedResponseHeader, httpVer);
|
|
|
|
// replace date field in old header by actual date, this is according to RFC
|
|
cachedResponseHeader.put(httpHeader.DATE, httpc.dateString(httpc.nowDate()));
|
|
|
|
// if (((String)requestHeader.get(httpHeader.ACCEPT_ENCODING,"")).indexOf("gzip") != -1) {
|
|
// chunked = new httpChunkedOutputStream(respond);
|
|
// zipped = new GZIPOutputStream(chunked);
|
|
// cachedResponseHeader.put(httpHeader.TRANSFER_ENCODING, "chunked");
|
|
// cachedResponseHeader.put(httpHeader.CONTENT_ENCODING, "gzip");
|
|
// } else {
|
|
// maybe the content length is missing
|
|
// if (!(cachedResponseHeader.containsKey(httpHeader.CONTENT_LENGTH)))
|
|
// cachedResponseHeader.put(httpHeader.CONTENT_LENGTH, Long.toString(cacheFile.length()));
|
|
// }
|
|
|
|
// check if we can send a 304 instead the complete content
|
|
if (requestHeader.containsKey(httpHeader.IF_MODIFIED_SINCE)) {
|
|
// conditional request: freshness of cache for that condition was already
|
|
// checked within shallUseCache(). Now send only a 304 response
|
|
this.theLogger.logInfo("CACHE HIT/304 " + cacheFile.toString());
|
|
conProp.setProperty(httpHeader.CONNECTION_PROP_PROXY_RESPOND_CODE,"TCP_REFRESH_HIT");
|
|
|
|
// setting the content length header to 0
|
|
cachedResponseHeader.put(httpHeader.CONTENT_LENGTH, Integer.toString(0));
|
|
|
|
// send cached header with replaced date and added length
|
|
httpd.sendRespondHeader(conProp,respond,httpVer,304,cachedResponseHeader);
|
|
//respondHeader(respond, "304 OK", cachedResponseHeader); // respond with 'not modified'
|
|
} else {
|
|
// unconditional request: send content of cache
|
|
this.theLogger.logInfo("CACHE HIT/203 " + cacheFile.toString());
|
|
conProp.setProperty(httpHeader.CONNECTION_PROP_PROXY_RESPOND_CODE,"TCP_HIT");
|
|
|
|
// setting the content header to the proper length
|
|
cachedResponseHeader.put(httpHeader.CONTENT_LENGTH, Long.toString(cacheFile.length()));
|
|
|
|
// send cached header with replaced date and added length
|
|
httpd.sendRespondHeader(conProp,respond,httpVer,203,cachedResponseHeader);
|
|
//respondHeader(respond, "203 OK", cachedResponseHeader); // respond with 'non-authoritative'
|
|
|
|
// determine the content charset
|
|
String charSet = cachedResponseHeader.getCharacterEncoding();
|
|
if (charSet == null) charSet = httpHeader.DEFAULT_CHARSET;
|
|
|
|
// make a transformer
|
|
if ((!(transformer.isIdentityTransformer())) &&
|
|
((ext == null) || (!(plasmaParser.supportedRealtimeFileExtContains(url)))) &&
|
|
((cachedResponseHeader == null) || (plasmaParser.realtimeParsableMimeTypesContains(cachedResponseHeader.mime())))) {
|
|
hfos = new htmlFilterWriter((chunkedOut != null) ? chunkedOut : respond, charSet, null, transformer, (ext.length() == 0));
|
|
} else {
|
|
hfos = (gzippedOut != null) ? gzippedOut : ((chunkedOut != null)? chunkedOut : respond);
|
|
}
|
|
|
|
// send also the complete body now from the cache
|
|
// simply read the file and transfer to out socket
|
|
if (hfos instanceof OutputStream) {
|
|
serverFileUtils.copy(cacheFile,(OutputStream)hfos);
|
|
} else if (hfos instanceof Writer) {
|
|
serverFileUtils.copy(cacheFile,charSet,(Writer)hfos);
|
|
}
|
|
|
|
if (hfos instanceof htmlFilterWriter) ((htmlFilterWriter) hfos).finalize();
|
|
if (gzippedOut != null) gzippedOut.finish();
|
|
if (chunkedOut != null) chunkedOut.finish();
|
|
}
|
|
// that's it!
|
|
} catch (Exception e) {
|
|
// this happens if the client stops loading the file
|
|
// we do nothing here
|
|
if (conProp.containsKey(httpHeader.CONNECTION_PROP_PROXY_RESPOND_HEADER)) {
|
|
this.theLogger.logWarning("Error while trying to send cached message body.");
|
|
conProp.setProperty(httpHeader.CONNECTION_PROP_PERSISTENT,"close");
|
|
} else {
|
|
httpd.sendRespondError(conProp,respond,4,503,"socket error: " + e.getMessage(),"socket error: " + e.getMessage(), e);
|
|
}
|
|
} finally {
|
|
try { respond.flush(); } catch (Exception e) {}
|
|
}
|
|
return;
|
|
}
|
|
|
|
|
|
private void removeHopByHopHeaders(httpHeader headers) {
|
|
/*
|
|
- Trailers
|
|
*/
|
|
|
|
headers.remove(httpHeader.CONNECTION);
|
|
headers.remove(httpHeader.KEEP_ALIVE);
|
|
headers.remove(httpHeader.UPGRADE);
|
|
headers.remove(httpHeader.TE);
|
|
headers.remove(httpHeader.PROXY_CONNECTION);
|
|
headers.remove(httpHeader.PROXY_AUTHENTICATE);
|
|
headers.remove(httpHeader.PROXY_AUTHORIZATION);
|
|
|
|
// special headers inserted by squid
|
|
headers.remove(httpHeader.X_CACHE);
|
|
headers.remove(httpHeader.X_CACHE_LOOKUP);
|
|
|
|
// remove transfer encoding header
|
|
headers.remove(httpHeader.TRANSFER_ENCODING);
|
|
|
|
//removing yacy status headers
|
|
headers.remove(httpHeader.X_YACY_KEEP_ALIVE_REQUEST_COUNT);
|
|
headers.remove(httpHeader.X_YACY_ORIGINAL_REQUEST_LINE);
|
|
}
|
|
|
|
private void forceConnectionClose() {
|
|
if (this.connectionProperties != null) {
|
|
this.connectionProperties.setProperty(httpHeader.CONNECTION_PROP_PERSISTENT,"close");
|
|
}
|
|
}
|
|
|
|
public void doHead(Properties conProp, httpHeader requestHeader, OutputStream respond) throws IOException {
|
|
this.connectionProperties = conProp;
|
|
|
|
httpc remote = null;
|
|
httpc.response res = null;
|
|
URL url = null;
|
|
try {
|
|
// remembering the starting time of the request
|
|
Date requestDate = new Date(); // remember the time...
|
|
this.connectionProperties.put(httpHeader.CONNECTION_PROP_REQUEST_START,new Long(requestDate.getTime()));
|
|
if (yacyTrigger) de.anomic.yacy.yacyCore.triggerOnlineAction();
|
|
switchboard.proxyLastAccess = System.currentTimeMillis();
|
|
|
|
// using an ByteCount OutputStream to count the send bytes
|
|
respond = new httpdByteCountOutputStream(respond,conProp.getProperty(httpHeader.CONNECTION_PROP_REQUESTLINE).length() + 2);
|
|
|
|
String host = conProp.getProperty(httpHeader.CONNECTION_PROP_HOST);
|
|
String path = conProp.getProperty(httpHeader.CONNECTION_PROP_PATH);
|
|
String args = conProp.getProperty(httpHeader.CONNECTION_PROP_ARGS);
|
|
String httpVer = conProp.getProperty(httpHeader.CONNECTION_PROP_HTTP_VER);
|
|
|
|
switchboard.proxyLastAccess = System.currentTimeMillis();
|
|
|
|
int port, pos;
|
|
if ((pos = host.indexOf(":")) < 0) {
|
|
port = 80;
|
|
} else {
|
|
port = Integer.parseInt(host.substring(pos + 1));
|
|
host = host.substring(0, pos);
|
|
}
|
|
|
|
try {
|
|
url = new URL("http", host, port, (args == null) ? path : path + "?" + args);
|
|
} catch (MalformedURLException e) {
|
|
String errorMsg = "ERROR: internal error with url generation: host=" +
|
|
host + ", port=" + port + ", path=" + path + ", args=" + args;
|
|
serverLog.logSevere("PROXY", errorMsg);
|
|
httpd.sendRespondError(conProp,respond,4,501,null,errorMsg,e);
|
|
return;
|
|
}
|
|
|
|
// check the blacklist, inspired by [AS]: respond a 404 for all AGIS (all you get is shit) servers
|
|
String hostlow = host.toLowerCase();
|
|
|
|
// re-calc the url path
|
|
String remotePath = (args == null) ? path : (path + "?" + args);
|
|
|
|
if (plasmaSwitchboard.urlBlacklist.isListed(plasmaURLPattern.BLACKLIST_PROXY, hostlow, remotePath)) {
|
|
httpd.sendRespondError(conProp,respond,4,403,null,
|
|
"URL '" + hostlow + "' blocked by yacy proxy (blacklisted)",null);
|
|
this.theLogger.logInfo("AGIS blocking of host '" + hostlow + "'");
|
|
return;
|
|
}
|
|
|
|
// set another userAgent, if not yellowlisted
|
|
if (!(yellowList.contains(domain(hostlow)))) {
|
|
// change the User-Agent
|
|
requestHeader.put(httpHeader.USER_AGENT, generateUserAgent(requestHeader));
|
|
}
|
|
|
|
// setting the X-Forwarded-For Header
|
|
if (switchboard.getConfigBool("proxy.sendXForwardedForHeader", true)) {
|
|
requestHeader.put(httpHeader.X_FORWARDED_FOR,conProp.getProperty(httpHeader.CONNECTION_PROP_CLIENTIP));
|
|
}
|
|
|
|
// resolve yacy and yacyh domains
|
|
String yAddress = yacyCore.seedDB.resolveYacyAddress(host);
|
|
|
|
// attach possible yacy-sublevel-domain
|
|
if ((yAddress != null) && ((pos = yAddress.indexOf("/")) >= 0)) remotePath = yAddress.substring(pos) + remotePath;
|
|
|
|
// removing hop by hop headers
|
|
this.removeHopByHopHeaders(requestHeader);
|
|
|
|
// adding outgoing headers
|
|
setViaHeader(requestHeader, httpVer);
|
|
|
|
// open the connection: second is needed for [AS] patch
|
|
remote = (yAddress == null) ? newhttpc(host, port, timeout): newhttpc(yAddress, timeout);
|
|
|
|
// sending the http-HEAD request to the server
|
|
res = remote.HEAD(remotePath, requestHeader);
|
|
|
|
// determine if it's an internal error of the httpc
|
|
if (res.responseHeader.size() == 0) {
|
|
throw new Exception(res.statusText);
|
|
}
|
|
|
|
// removing hop by hop headers
|
|
this.removeHopByHopHeaders(res.responseHeader);
|
|
|
|
// adding outgoing headers
|
|
setViaHeader(res.responseHeader, res.httpVer);
|
|
|
|
// sending the server respond back to the client
|
|
httpd.sendRespondHeader(conProp,respond,httpVer,res.statusCode,res.statusText,res.responseHeader);
|
|
} catch (Exception e) {
|
|
handleProxyException(e,remote,conProp,respond,url);
|
|
} finally {
|
|
if (remote != null) httpc.returnInstance(remote);
|
|
}
|
|
|
|
respond.flush();
|
|
}
|
|
|
|
public void doPost(Properties conProp, httpHeader requestHeader, OutputStream respond, PushbackInputStream body) throws IOException {
|
|
|
|
this.connectionProperties = conProp;
|
|
|
|
httpc remote = null;
|
|
URL url = null;
|
|
try {
|
|
// remembering the starting time of the request
|
|
Date requestDate = new Date(); // remember the time...
|
|
this.connectionProperties.put(httpHeader.CONNECTION_PROP_REQUEST_START,new Long(requestDate.getTime()));
|
|
if (yacyTrigger) de.anomic.yacy.yacyCore.triggerOnlineAction();
|
|
switchboard.proxyLastAccess = System.currentTimeMillis();
|
|
|
|
// using an ByteCount OutputStream to count the send bytes
|
|
respond = new httpdByteCountOutputStream(respond,conProp.getProperty(httpHeader.CONNECTION_PROP_REQUESTLINE).length() + 2);
|
|
|
|
String host = conProp.getProperty(httpHeader.CONNECTION_PROP_HOST);
|
|
String path = conProp.getProperty(httpHeader.CONNECTION_PROP_PATH);
|
|
String args = conProp.getProperty(httpHeader.CONNECTION_PROP_ARGS); // may be null if no args were given
|
|
String httpVer = conProp.getProperty(httpHeader.CONNECTION_PROP_HTTP_VER);
|
|
|
|
int port, pos;
|
|
if ((pos = host.indexOf(":")) < 0) {
|
|
port = 80;
|
|
} else {
|
|
port = Integer.parseInt(host.substring(pos + 1));
|
|
host = host.substring(0, pos);
|
|
}
|
|
|
|
try {
|
|
url = new URL("http", host, port, (args == null) ? path : path + "?" + args);
|
|
} catch (MalformedURLException e) {
|
|
String errorMsg = "ERROR: internal error with url generation: host=" +
|
|
host + ", port=" + port + ", path=" + path + ", args=" + args;
|
|
serverLog.logSevere("PROXY", errorMsg);
|
|
httpd.sendRespondError(conProp,respond,4,501,null,errorMsg,e);
|
|
return;
|
|
}
|
|
|
|
// set another userAgent, if not yellowlisted
|
|
if (!(yellowList.contains(domain(host).toLowerCase()))) {
|
|
// change the User-Agent
|
|
requestHeader.put(httpHeader.USER_AGENT, generateUserAgent(requestHeader));
|
|
}
|
|
|
|
// setting the X-Forwarded-For Header
|
|
if (switchboard.getConfigBool("proxy.sendXForwardedForHeader", true)) {
|
|
requestHeader.put(httpHeader.X_FORWARDED_FOR,conProp.getProperty(httpHeader.CONNECTION_PROP_CLIENTIP));
|
|
}
|
|
|
|
// resolve yacy and yacyh domains
|
|
String yAddress = yacyCore.seedDB.resolveYacyAddress(host);
|
|
|
|
// re-calc the url path
|
|
String remotePath = (args == null) ? path : (path + "?" + args);
|
|
|
|
// attach possible yacy-sublevel-domain
|
|
if ((yAddress != null) && ((pos = yAddress.indexOf("/")) >= 0)) remotePath = yAddress.substring(pos) + remotePath;
|
|
|
|
// removing hop by hop headers
|
|
this.removeHopByHopHeaders(requestHeader);
|
|
|
|
// adding additional headers
|
|
setViaHeader(requestHeader, httpVer);
|
|
|
|
// sending the request
|
|
remote = (yAddress == null) ? newhttpc(host, port, timeout) : newhttpc(yAddress, timeout);
|
|
httpc.response res = remote.POST(remotePath, requestHeader, body);
|
|
|
|
// determine if it's an internal error of the httpc
|
|
if (res.responseHeader.size() == 0) {
|
|
throw new Exception(res.statusText);
|
|
}
|
|
|
|
// if the content length is not set we need to use chunked content encoding
|
|
long contentLength = res.responseHeader.contentLength();
|
|
httpChunkedOutputStream chunked = null;
|
|
if (contentLength <= 0) {
|
|
// according to http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
|
|
// a 204,304 message must not contain a message body.
|
|
// Therefore we need to set the content-length to 0.
|
|
if (res.status.startsWith("204") ||
|
|
res.status.startsWith("304")) {
|
|
res.responseHeader.put(httpHeader.CONTENT_LENGTH,"0");
|
|
} else {
|
|
if (httpVer.equals("HTTP/0.9") || httpVer.equals("HTTP/1.0")) {
|
|
forceConnectionClose();
|
|
} else {
|
|
chunked = new httpChunkedOutputStream(respond);
|
|
}
|
|
res.responseHeader.remove(httpHeader.CONTENT_LENGTH);
|
|
}
|
|
}
|
|
|
|
// remove hop by hop headers
|
|
this.removeHopByHopHeaders(res.responseHeader);
|
|
|
|
// adding additional headers
|
|
setViaHeader(res.responseHeader, res.httpVer);
|
|
|
|
// sending the respond header back to the client
|
|
if (chunked != null) {
|
|
res.responseHeader.put(httpHeader.TRANSFER_ENCODING, "chunked");
|
|
}
|
|
|
|
// sending response headers
|
|
httpd.sendRespondHeader(conProp,
|
|
respond,
|
|
httpVer,
|
|
res.statusCode,
|
|
res.statusText,
|
|
res.responseHeader);
|
|
|
|
// respondHeader(respond, res.status, res.responseHeader);
|
|
res.writeContent((chunked != null) ? chunked : respond, null);
|
|
if (chunked != null) chunked.finish();
|
|
|
|
remote.close();
|
|
respond.flush();
|
|
} catch (Exception e) {
|
|
handleProxyException(e,remote,conProp,respond,url);
|
|
} finally {
|
|
if (remote != null) httpc.returnInstance(remote);
|
|
|
|
respond.flush();
|
|
if (respond instanceof httpdByteCountOutputStream) ((httpdByteCountOutputStream)respond).finish();
|
|
|
|
this.connectionProperties.put(httpHeader.CONNECTION_PROP_REQUEST_END,new Long(System.currentTimeMillis()));
|
|
this.connectionProperties.put(httpHeader.CONNECTION_PROP_PROXY_RESPOND_SIZE,new Long(((httpdByteCountOutputStream)respond).getCount()));
|
|
this.logProxyAccess();
|
|
}
|
|
}
|
|
|
|
public void doConnect(Properties conProp, de.anomic.http.httpHeader requestHeader, InputStream clientIn, OutputStream clientOut) throws IOException {
|
|
this.connectionProperties = conProp;
|
|
switchboard.proxyLastAccess = System.currentTimeMillis();
|
|
|
|
String host = conProp.getProperty(httpHeader.CONNECTION_PROP_HOST);
|
|
String httpVersion = conProp.getProperty(httpHeader.CONNECTION_PROP_HTTP_VER);
|
|
String path = conProp.getProperty(httpHeader.CONNECTION_PROP_PATH);
|
|
final String args = conProp.getProperty(httpHeader.CONNECTION_PROP_ARGS);
|
|
if (args != null) { path = path + "?" + args; }
|
|
|
|
int port, pos;
|
|
if ((pos = host.indexOf(":")) < 0) {
|
|
port = 80;
|
|
} else {
|
|
port = Integer.parseInt(host.substring(pos + 1));
|
|
host = host.substring(0, pos);
|
|
}
|
|
|
|
// check the blacklist
|
|
// blacklist idea inspired by [AS]:
|
|
// respond a 404 for all AGIS ("all you get is shit") servers
|
|
final String hostlow = host.toLowerCase();
|
|
if (plasmaSwitchboard.urlBlacklist.isListed(plasmaURLPattern.BLACKLIST_PROXY, hostlow, path)) {
|
|
httpd.sendRespondError(conProp,clientOut,4,403,null,
|
|
"URL '" + hostlow + "' blocked by yacy proxy (blacklisted)",null);
|
|
this.theLogger.logInfo("AGIS blocking of host '" + hostlow + "'");
|
|
forceConnectionClose();
|
|
return;
|
|
}
|
|
|
|
// possibly branch into PROXY-PROXY connection
|
|
if (
|
|
(switchboard.remoteProxyConfig != null) &&
|
|
(switchboard.remoteProxyConfig.useProxy()) &&
|
|
(switchboard.remoteProxyConfig.useProxy4SSL())
|
|
) {
|
|
httpc remoteProxy = null;
|
|
try {
|
|
remoteProxy = httpc.getInstance(
|
|
host,
|
|
host,
|
|
port,
|
|
timeout,
|
|
false,
|
|
switchboard.remoteProxyConfig
|
|
);
|
|
|
|
httpc.response response = remoteProxy.CONNECT(host, port, requestHeader);
|
|
response.print();
|
|
if (response.success()) {
|
|
// replace connection details
|
|
host = switchboard.remoteProxyConfig.getProxyHost();
|
|
port = switchboard.remoteProxyConfig.getProxyPort();
|
|
// go on (see below)
|
|
} else {
|
|
// pass error response back to client
|
|
httpd.sendRespondHeader(conProp,clientOut,httpVersion,response.statusCode,response.statusText,response.responseHeader);
|
|
//respondHeader(clientOut, response.status, response.responseHeader);
|
|
forceConnectionClose();
|
|
return;
|
|
}
|
|
} catch (Exception e) {
|
|
throw new IOException(e.getMessage());
|
|
} finally {
|
|
if (remoteProxy != null) httpc.returnInstance(remoteProxy);
|
|
}
|
|
}
|
|
|
|
// try to establish connection to remote host
|
|
Socket sslSocket = new Socket(host, port);
|
|
sslSocket.setSoTimeout(timeout); // waiting time for write
|
|
sslSocket.setSoLinger(true, timeout); // waiting time for read
|
|
InputStream promiscuousIn = sslSocket.getInputStream();
|
|
OutputStream promiscuousOut = sslSocket.getOutputStream();
|
|
|
|
// now then we can return a success message
|
|
clientOut.write((httpVersion + " 200 Connection established" + serverCore.crlfString +
|
|
"Proxy-agent: YACY" + serverCore.crlfString +
|
|
serverCore.crlfString).getBytes());
|
|
|
|
this.theLogger.logInfo("SSL connection to " + host + ":" + port + " established.");
|
|
|
|
// start stream passing with mediate processes
|
|
Mediate cs = new Mediate(sslSocket, clientIn, promiscuousOut);
|
|
Mediate sc = new Mediate(sslSocket, promiscuousIn, clientOut);
|
|
cs.start();
|
|
sc.start();
|
|
while ((sslSocket != null) &&
|
|
(sslSocket.isBound()) &&
|
|
(!(sslSocket.isClosed())) &&
|
|
(sslSocket.isConnected()) &&
|
|
((cs.isAlive()) || (sc.isAlive()))) {
|
|
// idle
|
|
try {Thread.sleep(1000);} catch (InterruptedException e) {} // wait a while
|
|
}
|
|
// set stop mode
|
|
cs.pleaseTerminate();
|
|
sc.pleaseTerminate();
|
|
// wake up thread
|
|
cs.interrupt();
|
|
sc.interrupt();
|
|
// ...hope they have terminated...
|
|
}
|
|
|
|
public class Mediate extends Thread {
|
|
|
|
boolean terminate;
|
|
Socket socket;
|
|
InputStream in;
|
|
OutputStream out;
|
|
|
|
public Mediate(Socket socket, InputStream in, OutputStream out) {
|
|
this.terminate = false;
|
|
this.in = in;
|
|
this.out = out;
|
|
this.socket = socket;
|
|
}
|
|
|
|
public void run() {
|
|
byte[] buffer = new byte[512];
|
|
int len;
|
|
try {
|
|
while ((socket != null) &&
|
|
(socket.isBound()) &&
|
|
(!(socket.isClosed())) &&
|
|
(socket.isConnected()) &&
|
|
(!(terminate)) &&
|
|
(in != null) &&
|
|
(out != null) &&
|
|
((len = in.read(buffer)) >= 0)
|
|
) {
|
|
out.write(buffer, 0, len);
|
|
}
|
|
} catch (IOException e) {}
|
|
}
|
|
|
|
public void pleaseTerminate() {
|
|
terminate = true;
|
|
}
|
|
}
|
|
|
|
private httpc newhttpc(String server, int port, int timeout) throws IOException {
|
|
|
|
// getting the remote proxy configuration
|
|
httpRemoteProxyConfig remProxyConfig = switchboard.remoteProxyConfig;
|
|
|
|
// a new httpc connection, combined with possible remote proxy
|
|
boolean useProxy = (remProxyConfig!=null)&&(remProxyConfig.useProxy());
|
|
|
|
// check no-proxy rule
|
|
if (
|
|
(switchboard.remoteProxyConfig != null) &&
|
|
(switchboard.remoteProxyConfig.useProxy()) &&
|
|
(!(switchboard.remoteProxyConfig.remoteProxyAllowProxySet.contains(server)))) {
|
|
if (switchboard.remoteProxyConfig.remoteProxyDisallowProxySet.contains(server)) {
|
|
useProxy = false;
|
|
} else {
|
|
// analyse remoteProxyNoProxy;
|
|
// set either remoteProxyAllowProxySet or remoteProxyDisallowProxySet accordingly
|
|
int i = 0;
|
|
while (i < remProxyConfig.getProxyNoProxyPatterns().length) {
|
|
if (server.matches(remProxyConfig.getProxyNoProxyPatterns()[i])) {
|
|
// disallow proxy for this server
|
|
switchboard.remoteProxyConfig.remoteProxyDisallowProxySet.add(server);
|
|
useProxy = false;
|
|
break;
|
|
}
|
|
i++;
|
|
}
|
|
if (i == remProxyConfig.getProxyNoProxyPatterns().length) {
|
|
// no pattern matches: allow server
|
|
switchboard.remoteProxyConfig.remoteProxyAllowProxySet.add(server);
|
|
}
|
|
}
|
|
}
|
|
|
|
// branch to server/proxy
|
|
if (useProxy) {
|
|
return httpc.getInstance(
|
|
server,
|
|
server,
|
|
port,
|
|
timeout,
|
|
false,
|
|
remProxyConfig
|
|
);
|
|
}
|
|
return httpc.getInstance(
|
|
server,
|
|
server,
|
|
port,
|
|
timeout,
|
|
false
|
|
);
|
|
}
|
|
|
|
private httpc newhttpc(String address, int timeout) throws IOException {
|
|
// a new httpc connection for <host>:<port>/<path> syntax
|
|
// this is called when a '.yacy'-domain is used
|
|
int p = address.indexOf(":");
|
|
if (p < 0) return null;
|
|
String server = address.substring(0, p);
|
|
address = address.substring(p + 1);
|
|
// remove possible path elements (may occur for 'virtual' subdomains
|
|
p = address.indexOf("/");
|
|
if (p >= 0) address = address.substring(0, p); // cut it off
|
|
int port = Integer.parseInt(address);
|
|
// normal creation of httpc object
|
|
return newhttpc(server, port, timeout);
|
|
}
|
|
/*
|
|
private void textMessage(OutputStream out, String body) throws IOException {
|
|
out.write(("HTTP/1.1 200 OK\r\n").getBytes());
|
|
out.write((httpHeader.SERVER + ": AnomicHTTPD (www.anomic.de)\r\n").getBytes());
|
|
out.write((httpHeader.DATE + ": " + httpc.dateString(httpc.nowDate()) + "\r\n").getBytes());
|
|
out.write((httpHeader.CONTENT_TYPE + ": text/plain\r\n").getBytes());
|
|
out.write((httpHeader.CONTENT_LENGTH + ": " + body.length() +"\r\n").getBytes());
|
|
out.write(("\r\n").getBytes());
|
|
out.flush();
|
|
out.write(body.getBytes());
|
|
out.flush();
|
|
}
|
|
*/
|
|
private void handleProxyException(Exception e, httpc remote, Properties conProp, OutputStream respond, URL url) {
|
|
// this may happen if
|
|
// - the targeted host does not exist
|
|
// - anything with the remote server was wrong.
|
|
// - the client unexpectedly closed the connection ...
|
|
try {
|
|
|
|
|
|
// doing some errorhandling ...
|
|
int httpStatusCode = 404;
|
|
String httpStatusText = null;
|
|
String errorMessage = null;
|
|
Exception errorExc = null;
|
|
boolean unknownError = false;
|
|
|
|
// for customized error messages
|
|
boolean detailedErrorMsg = false;
|
|
String detailedErrorMsgFile = null;
|
|
serverObjects detailedErrorMsgMap = null;
|
|
|
|
if (e instanceof ConnectException) {
|
|
httpStatusCode = 403; httpStatusText = "Connection refused";
|
|
errorMessage = "Connection refused by destination host";
|
|
} else if (e instanceof BindException) {
|
|
errorMessage = "Unable to establish a connection to the destination host";
|
|
} else if (e instanceof NoRouteToHostException) {
|
|
errorMessage = "No route to destination host";
|
|
} else if (e instanceof UnknownHostException) {
|
|
//errorMessage = "IP address of the destination host could not be determined";
|
|
try {
|
|
detailedErrorMsgMap = unknownHostHandling(conProp);
|
|
httpStatusText = "Unknown Host";
|
|
detailedErrorMsg = true;
|
|
detailedErrorMsgFile = "proxymsg/unknownHost.inc";
|
|
} catch (Exception e1) {
|
|
errorMessage = "IP address of the destination host could not be determined";
|
|
}
|
|
} else if (e instanceof SocketTimeoutException) {
|
|
errorMessage = "Unable to establish a connection to the destination host. Connect timed out.";
|
|
} else {
|
|
String exceptionMsg = e.getMessage();
|
|
if ((exceptionMsg != null) && (exceptionMsg.indexOf("Corrupt GZIP trailer") >= 0)) {
|
|
// just do nothing, we leave it this way
|
|
this.theLogger.logFine("ignoring bad gzip trail for URL " + url + " (" + e.getMessage() + ")");
|
|
this.forceConnectionClose();
|
|
} else if ((exceptionMsg != null) && (exceptionMsg.indexOf("Connection reset")>= 0)) {
|
|
errorMessage = "Connection reset";
|
|
} else if ((exceptionMsg != null) && (exceptionMsg.indexOf("unknown host")>=0)) {
|
|
try {
|
|
detailedErrorMsgMap = unknownHostHandling(conProp);
|
|
httpStatusText = "Unknown Host";
|
|
detailedErrorMsg = true;
|
|
detailedErrorMsgFile = "proxymsg/unknownHost.inc";
|
|
} catch (Exception e1) {
|
|
errorMessage = "IP address of the destination host could not be determined";
|
|
}
|
|
} else if ((exceptionMsg != null) &&
|
|
(
|
|
(exceptionMsg.indexOf("socket write error")>=0) ||
|
|
(exceptionMsg.indexOf("Read timed out") >= 0) ||
|
|
(exceptionMsg.indexOf("Broken pipe") >= 0) ||
|
|
(exceptionMsg.indexOf("server has closed connection") >= 0)
|
|
)) {
|
|
errorMessage = exceptionMsg;
|
|
} else if ((remote != null)&&(remote.isClosed())) {
|
|
// TODO: query for broken pipe
|
|
errorMessage = "Destination host unexpectedly closed connection";
|
|
} else {
|
|
errorMessage = "Unexpected Error. " + e.getClass().getName() + ": " + e.getMessage();
|
|
unknownError = true;
|
|
errorExc = e;
|
|
}
|
|
}
|
|
|
|
// sending back an error message to the client
|
|
if (!conProp.containsKey(httpHeader.CONNECTION_PROP_PROXY_RESPOND_HEADER)) {
|
|
if (detailedErrorMsg) {
|
|
httpd.sendRespondError(conProp,respond, httpStatusCode, httpStatusText, new File(detailedErrorMsgFile), detailedErrorMsgMap, errorExc);
|
|
} else {
|
|
httpd.sendRespondError(conProp,respond,4,httpStatusCode,httpStatusText,errorMessage,errorExc);
|
|
}
|
|
} else {
|
|
if (unknownError) {
|
|
this.theLogger.logFine("Error while processing request '" +
|
|
conProp.getProperty(httpHeader.CONNECTION_PROP_REQUESTLINE,"unknown") + "':" +
|
|
"\n" + Thread.currentThread().getName() +
|
|
"\n" + errorMessage,e);
|
|
} else {
|
|
this.theLogger.logFine("Error while processing request '" +
|
|
conProp.getProperty(httpHeader.CONNECTION_PROP_REQUESTLINE,"unknown") + "':" +
|
|
"\n" + Thread.currentThread().getName() +
|
|
"\n" + errorMessage);
|
|
}
|
|
this.forceConnectionClose();
|
|
}
|
|
} catch (Exception ee) {
|
|
this.forceConnectionClose();
|
|
}
|
|
|
|
}
|
|
|
|
private serverObjects unknownHostHandling(Properties conProp) throws Exception {
|
|
serverObjects detailedErrorMsgMap = new serverObjects();
|
|
|
|
// generic toplevel domains
|
|
HashSet topLevelDomains = new HashSet(Arrays.asList(new String[]{
|
|
"aero", // Fluggesellschaften/Luftfahrt
|
|
"arpa", // Einrichtung des ARPANet
|
|
"biz", // Business
|
|
"com", // Commercial
|
|
"coop", // genossenschaftliche Unternehmen
|
|
"edu", // Education
|
|
"gov", // Government
|
|
"info", // Informationsangebote
|
|
"int", // International
|
|
"jobs", // Jobangebote von Unternemen
|
|
"mil", // Military (US-Militaer)
|
|
// "museum", // Museen
|
|
"name", // Privatpersonen
|
|
"nato", // NATO (veraltet)
|
|
"net", // Net (Netzwerkbetreiber)
|
|
"org", // Organization (Nichtkommerzielle Organisation)
|
|
"pro", // Professionals
|
|
"travel", // Touristikindustrie
|
|
|
|
// some country tlds
|
|
"de",
|
|
"at",
|
|
"ch",
|
|
"it",
|
|
"uk"
|
|
}));
|
|
|
|
// getting some connection properties
|
|
String orgHostPort = "80";
|
|
String orgHostName = conProp.getProperty(httpHeader.CONNECTION_PROP_HOST,"unknown").toLowerCase();
|
|
int pos = orgHostName.indexOf(":");
|
|
if (pos != -1) {
|
|
orgHostPort = orgHostName.substring(pos+1);
|
|
orgHostName = orgHostName.substring(0,pos);
|
|
}
|
|
String orgHostPath = conProp.getProperty(httpHeader.CONNECTION_PROP_PATH,"");
|
|
String orgHostArgs = conProp.getProperty(httpHeader.CONNECTION_PROP_ARGS,"");
|
|
if (orgHostArgs.length() > 0) orgHostArgs = "?" + orgHostArgs;
|
|
detailedErrorMsgMap.put("hostName", orgHostName);
|
|
|
|
// guessing hostnames
|
|
HashSet testHostNames = new HashSet();
|
|
String testHostName = null;
|
|
if (!orgHostName.startsWith("www.")) {
|
|
testHostName = "www." + orgHostName;
|
|
InetAddress addr = httpc.dnsResolve(testHostName);
|
|
if (addr != null) testHostNames.add(testHostName);
|
|
} else if (orgHostName.startsWith("www.")) {
|
|
testHostName = orgHostName.substring(4);
|
|
InetAddress addr = httpc.dnsResolve(testHostName);
|
|
if (addr != null) if (addr != null) testHostNames.add(testHostName);
|
|
}
|
|
if (orgHostName.length()>4 && orgHostName.startsWith("www") && (orgHostName.charAt(3) != '.')) {
|
|
testHostName = orgHostName.substring(0,3) + "." + orgHostName.substring(3);
|
|
InetAddress addr = httpc.dnsResolve(testHostName);
|
|
if (addr != null) if (addr != null) testHostNames.add(testHostName);
|
|
}
|
|
|
|
pos = orgHostName.lastIndexOf(".");
|
|
if (pos != -1) {
|
|
Iterator iter = topLevelDomains.iterator();
|
|
while (iter.hasNext()) {
|
|
String topLevelDomain = (String) iter.next();
|
|
testHostName = orgHostName.substring(0,pos) + "." + topLevelDomain;
|
|
InetAddress addr = httpc.dnsResolve(testHostName);
|
|
if (addr != null) if (addr != null) testHostNames.add(testHostName);
|
|
}
|
|
}
|
|
|
|
int hostNameCount = 0;
|
|
Iterator iter = testHostNames.iterator();
|
|
while (iter.hasNext()) {
|
|
testHostName = (String) iter.next();
|
|
detailedErrorMsgMap.put("list_" + hostNameCount + "_hostName",testHostName);
|
|
detailedErrorMsgMap.put("list_" + hostNameCount + "_hostPort",orgHostPort);
|
|
detailedErrorMsgMap.put("list_" + hostNameCount + "_hostPath",orgHostPath);
|
|
detailedErrorMsgMap.put("list_" + hostNameCount + "_hostArgs",orgHostArgs);
|
|
hostNameCount++;
|
|
}
|
|
|
|
detailedErrorMsgMap.put("list", hostNameCount);
|
|
return detailedErrorMsgMap;
|
|
}
|
|
|
|
private String generateUserAgent(httpHeader requestHeaders) {
|
|
this.userAgentStr.setLength(0);
|
|
|
|
String browserUserAgent = (String) requestHeaders.get(httpHeader.USER_AGENT, proxyUserAgent);
|
|
int pos = browserUserAgent.lastIndexOf(')');
|
|
if (pos >= 0) {
|
|
this.userAgentStr
|
|
.append(browserUserAgent.substring(0,pos))
|
|
.append("; YaCy ")
|
|
.append(switchboard.getConfig("vString","0.1"))
|
|
.append("; yacy.net")
|
|
.append(browserUserAgent.substring(pos));
|
|
} else {
|
|
this.userAgentStr.append(browserUserAgent);
|
|
}
|
|
|
|
return new String(this.userAgentStr);
|
|
}
|
|
|
|
private void setViaHeader(httpHeader header, String httpVer) {
|
|
if (!switchboard.getConfigBool("proxy.sendViaHeader", true)) return;
|
|
|
|
// getting header set by other proxies in the chain
|
|
StringBuffer viaValue = new StringBuffer();
|
|
if (header.containsKey(httpHeader.VIA)) viaValue.append((String)header.get(httpHeader.VIA));
|
|
if (viaValue.length() > 0) viaValue.append(", ");
|
|
|
|
// appending info about this peer
|
|
viaValue
|
|
.append(httpVer).append(" ")
|
|
.append(yacyCore.seedDB.mySeed.getName()).append(".yacy ")
|
|
.append("(YaCy ").append(switchboard.getConfig("vString", "0.0")).append(")");
|
|
|
|
// storing header back
|
|
header.put(httpHeader.VIA, new String(viaValue));
|
|
}
|
|
|
|
/**
|
|
* This function is used to generate a logging message according to the
|
|
* <a href="http://www.squid-cache.org/Doc/FAQ/FAQ-6.html">squid logging format</a>.<p>
|
|
* e.g.<br>
|
|
* <code>1117528623.857 178 192.168.1.201 TCP_MISS/200 1069 GET http://www.yacy.de/ - DIRECT/81.169.145.74 text/html</code>
|
|
*/
|
|
private final void logProxyAccess() {
|
|
|
|
if (!doAccessLogging) return;
|
|
|
|
this.logMessage.setLength(0);
|
|
|
|
// Timestamp
|
|
String currentTimestamp = Long.toString(System.currentTimeMillis());
|
|
int offset = currentTimestamp.length()-3;
|
|
|
|
this.logMessage.append(currentTimestamp.substring(0,offset));
|
|
this.logMessage.append('.');
|
|
this.logMessage.append(currentTimestamp.substring(offset));
|
|
this.logMessage.append(' ');
|
|
|
|
// Elapsed time
|
|
Long requestStart = (Long) this.connectionProperties.get(httpHeader.CONNECTION_PROP_REQUEST_START);
|
|
Long requestEnd = (Long) this.connectionProperties.get(httpHeader.CONNECTION_PROP_REQUEST_END);
|
|
String elapsed = Long.toString(requestEnd.longValue()-requestStart.longValue());
|
|
|
|
for (int i=0; i<6-elapsed.length(); i++) this.logMessage.append(' ');
|
|
this.logMessage.append(elapsed);
|
|
this.logMessage.append(' ');
|
|
|
|
// Remote Host
|
|
String clientIP = this.connectionProperties.getProperty(httpHeader.CONNECTION_PROP_CLIENTIP);
|
|
this.logMessage.append(clientIP);
|
|
this.logMessage.append(' ');
|
|
|
|
// Code/Status
|
|
String respondStatus = this.connectionProperties.getProperty(httpHeader.CONNECTION_PROP_PROXY_RESPOND_STATUS);
|
|
String respondCode = this.connectionProperties.getProperty(httpHeader.CONNECTION_PROP_PROXY_RESPOND_CODE,"UNKNOWN");
|
|
this.logMessage.append(respondCode);
|
|
this.logMessage.append("/");
|
|
this.logMessage.append(respondStatus);
|
|
this.logMessage.append(' ');
|
|
|
|
// Bytes
|
|
Long bytes = (Long) this.connectionProperties.get(httpHeader.CONNECTION_PROP_PROXY_RESPOND_SIZE);
|
|
this.logMessage.append(bytes.toString());
|
|
this.logMessage.append(' ');
|
|
|
|
// Method
|
|
String requestMethod = this.connectionProperties.getProperty(httpHeader.CONNECTION_PROP_METHOD);
|
|
this.logMessage.append(requestMethod);
|
|
this.logMessage.append(' ');
|
|
|
|
// URL
|
|
String requestURL = this.connectionProperties.getProperty(httpHeader.CONNECTION_PROP_URL);
|
|
String requestArgs = this.connectionProperties.getProperty(httpHeader.CONNECTION_PROP_ARGS);
|
|
this.logMessage.append(requestURL);
|
|
if (requestArgs != null) {
|
|
this.logMessage.append("?")
|
|
.append(requestArgs);
|
|
}
|
|
this.logMessage.append(' ');
|
|
|
|
// Rfc931
|
|
this.logMessage.append("-");
|
|
this.logMessage.append(' ');
|
|
|
|
// Peerstatus/Peerhost
|
|
String host = this.connectionProperties.getProperty(httpHeader.CONNECTION_PROP_HOST);
|
|
this.logMessage.append("DIRECT/");
|
|
this.logMessage.append(host);
|
|
this.logMessage.append(' ');
|
|
|
|
// Type
|
|
String mime = "-";
|
|
if (this.connectionProperties.containsKey(httpHeader.CONNECTION_PROP_PROXY_RESPOND_HEADER)) {
|
|
httpHeader proxyRespondHeader = (httpHeader) this.connectionProperties.get(httpHeader.CONNECTION_PROP_PROXY_RESPOND_HEADER);
|
|
mime = proxyRespondHeader.mime();
|
|
if (mime.indexOf(";") != -1) {
|
|
mime = mime.substring(0,mime.indexOf(";"));
|
|
}
|
|
}
|
|
this.logMessage.append(mime);
|
|
|
|
// sending the logging message to the logger
|
|
this.proxyLog.logFine(new String(this.logMessage));
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
proxy test:
|
|
|
|
http://www.chipchapin.com/WebTools/cookietest.php?
|
|
http://xlists.aza.org/moderator/cookietest/cookietest1.php
|
|
http://vancouver-webpages.com/proxy/cache-test.html
|
|
|
|
*/
|