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1387 lines
68 KiB
1387 lines
68 KiB
// httpd.java
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// -----------------------
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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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// last major change: $LastChangedDate$ by $LastChangedBy$
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// Revision: $LastChangedRevision$
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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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package de.anomic.http;
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import java.io.ByteArrayOutputStream;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.io.PrintStream;
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import java.io.PushbackInputStream;
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import java.lang.reflect.Constructor;
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import java.net.InetAddress;
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import java.net.MalformedURLException;
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import java.net.URL;
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import java.util.Arrays;
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import java.util.Date;
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import java.util.HashMap;
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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.StringTokenizer;
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import de.anomic.server.serverByteBuffer;
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import de.anomic.server.serverCodings;
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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.serverHandler;
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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.yacy.yacyCore;
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/**
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* Instances of this class can be passed as argument to the serverCore.
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* The generic server dispatches HTTP commands and calls the
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* method GET, HEAD or POST in this class
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* these methods parse the command line and decide wether to call
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* a proxy servlet or a file server servlet
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*/
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public final class httpd implements serverHandler {
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/* PROPERTIES: General properties */
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public static final String CONNECTION_PROP_HTTP_VER = "HTTP";
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public static final String CONNECTION_PROP_HOST = "HOST";
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public static final String CONNECTION_PROP_METHOD = "METHOD";
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public static final String CONNECTION_PROP_PATH = "PATH";
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public static final String CONNECTION_PROP_EXT = "EXT";
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public static final String CONNECTION_PROP_URL = "URL";
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public static final String CONNECTION_PROP_ARGS = "ARGS";
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public static final String CONNECTION_PROP_CLIENTIP = "CLIENTIP";
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public static final String CONNECTION_PROP_PERSISTENT = "PERSISTENT";
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public static final String CONNECTION_PROP_KEEP_ALIVE_COUNT = "KEEP-ALIVE_COUNT";
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public static final String CONNECTION_PROP_REQUESTLINE = "REQUESTLINE";
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public static final String CONNECTION_PROP_REQUEST_START = "REQUEST_START";
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public static final String CONNECTION_PROP_REQUEST_END = "REQUEST_END";
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/* PROPERTIES: Client -> Proxy */
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public static final String CONNECTION_PROP_CLIENT_REQUEST_HEADER = "CLIENT_REQUEST_HEADER";
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/* PROPERTIES: Proxy -> Server */
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/* PROPERTIES: Server -> Proxy */
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/* PROPERTIES: Proxy -> Client */
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public static final String CONNECTION_PROP_PROXY_RESPOND_CODE = "PROXY_RESPOND_CODE";
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public static final String CONNECTION_PROP_PROXY_RESPOND_STATUS = "PROXY_RESPOND_STATUS";
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public static final String CONNECTION_PROP_PROXY_RESPOND_HEADER = "PROXY_RESPOND_HEADER";
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public static final String CONNECTION_PROP_PROXY_RESPOND_SIZE = "PROXY_REQUEST_SIZE";
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/**
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* A hashset containing extensions that indicate content that should not be transported
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* using zipped content encoding
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* @see #shallTransportZipped(String)
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*/
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private static final HashSet disallowZippedContentEncoding = new HashSet(Arrays.asList(new String[]{
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".gz", ".tgz", ".jpg", ".jpeg", ".gif", ".zip", ".rar", ".bz2", ".lha", ".jar", ".rpm", ".arc", ".arj"
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}));
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// static objects
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public static final String vDATE = "<<REPL>>";
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public static final String copyright = "[ HTTP SERVER: AnomicHTTPD v" + vDATE + " by Michael Christen / www.anomic.de ]";
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public static final String hline = "-------------------------------------------------------------------------------";
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private static HashMap reverseMappingCache = new HashMap();
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private httpdHandler proxyHandler = null; // a servlet that holds the proxy functions
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private httpdHandler fileHandler = null; // a servlet that holds the file serving functions
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private httpdHandler soapHandler = null;
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private static serverSwitch switchboard = null;
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private static String virtualHost = null;
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public static boolean keepAliveSupport = false;
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// class objects
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private serverCore.Session session; // holds the session object of the calling class
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private InetAddress userAddress; // the address of the client
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private boolean allowProxy;
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private boolean allowServer;
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// for authentication
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private String proxyAccountBase64MD5;
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private String serverAccountBase64MD5;
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private String clientIP;
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// the connection properties
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private final Properties prop = new Properties();
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private int emptyRequestCount = 0;
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private int keepAliveRequestCount = 0;
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// needed for logging
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private final serverLog log = new serverLog("HTTPD");
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// class methods
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public httpd(serverSwitch s, httpdHandler fileHandler, httpdHandler proxyHandler) {
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// handler info
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httpd.switchboard = s;
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this.fileHandler = fileHandler;
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this.proxyHandler = proxyHandler;
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httpd.virtualHost = switchboard.getConfig("fileHost","localhost");
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// authentication: by default none
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this.proxyAccountBase64MD5 = null;
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this.serverAccountBase64MD5 = null;
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this.clientIP = null;
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// configuring keep alive support
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keepAliveSupport = Boolean.valueOf(switchboard.getConfig("connectionKeepAliveSupport","false")).booleanValue();
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}
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/**
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* Can be used to reset this {@link serverHandler} oject so that
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* it can be reused for further connections
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* @see de.anomic.server.serverHandler#reset()
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*/
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public void reset() {
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this.session = null;
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this.userAddress = null;
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this.allowProxy = false;
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this.allowServer = false;
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this.proxyAccountBase64MD5 = null;
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this.serverAccountBase64MD5 = null;
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this.clientIP = null;
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this.prop.clear();
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this.emptyRequestCount = 0;
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this.keepAliveRequestCount = 0;
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}
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/**
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* Must be called at least once, but can be called again to re-use the object.
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* @see de.anomic.server.serverHandler#initSession(de.anomic.server.serverCore.Session)
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*/
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public void initSession(serverCore.Session session) throws IOException {
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this.session = session;
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this.userAddress = session.userAddress; // client InetAddress
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this.clientIP = this.userAddress.getHostAddress();
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if (this.userAddress.isAnyLocalAddress()) this.clientIP = "localhost";
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if (this.clientIP.equals("0:0:0:0:0:0:0:1")) this.clientIP = "localhost";
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if (this.clientIP.equals("127.0.0.1")) this.clientIP = "localhost";
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String proxyClient = switchboard.getConfig("proxyClient", "*");
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String serverClient = switchboard.getConfig("serverClient", "*");
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this.allowProxy = (proxyClient.equals("*")) ? true : match(this.clientIP, proxyClient);
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this.allowServer = (serverClient.equals("*")) ? true : match(this.clientIP, serverClient);
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// check if we want to allow this socket to connect us
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if (!(this.allowProxy || this.allowServer)) {
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String errorMsg = "CONNECTION FROM " + this.clientIP + " FORBIDDEN";
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this.log.logWarning(errorMsg);
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throw new IOException(errorMsg);
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}
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this.proxyAccountBase64MD5 = null;
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this.serverAccountBase64MD5 = null;
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}
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private static boolean match(String key, String latch) {
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// the latch is a comma-separated list of patterns
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// each pattern may contain one wildcard-character '*' which matches anything
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StringTokenizer st = new StringTokenizer(latch,",");
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String pattern;
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int pos;
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while (st.hasMoreTokens()) {
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pattern = st.nextToken();
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if (key.matches(pattern)) return true;
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/*
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pos = pattern.indexOf("*");
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if (pos < 0) {
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// no wild card: exact match
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if (key.equals(pattern)) return true;
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} else {
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// wild card: match left and right side of pattern
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if ((key.startsWith(pattern.substring(0, pos))) &&
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(key.endsWith(pattern.substring(pos + 1)))) return true;
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}
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*/
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}
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return false;
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}
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public String greeting() { // OBLIGATORIC FUNCTION
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// a response line upon connection is send to client
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// if no response line is wanted, return "" or null
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return null;
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}
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public String error(Throwable e) { // OBLIGATORIC FUNCTION
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// return string in case of any error that occurs during communication
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// is always (but not only) called if an IO-dependent exception occurrs.
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this.log.logSevere("Unexpected Error. " + e.getClass().getName(),e);
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return "501 Exception occurred: " + e.getMessage();
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}
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/**
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* reads a line from the input socket
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* this function is provided by the server through a passed method on initialization
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* @return the next requestline as string
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*/
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private String readLine() {
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byte[] l = this.session.readLine();
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return (l == null) ? null: new String(l);
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}
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private httpHeader readHeader() throws IOException {
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// reading all headers
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httpHeader header = new httpHeader(reverseMappingCache);
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int p;
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String line;
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while ((line = readLine()) != null) {
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if (line.length() == 0) break; // this seperates the header of the HTTP request from the body
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// parse the header line: a property seperated with the ':' sign
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if ((p = line.indexOf(":")) >= 0) {
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// store a property
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header.add(line.substring(0, p).trim(), line.substring(p + 1).trim());
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}
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}
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/*
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* doing some header validation here ...
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*/
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String httpVersion = this.prop.getProperty(CONNECTION_PROP_HTTP_VER, "HTTP/0.9");
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if (httpVersion.equals("HTTP/1.1") && !header.containsKey(httpHeader.HOST)) {
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// the HTTP/1.1 specification requires that an HTTP/1.1 server must reject any
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// HTTP/1.1 message that does not contain a Host header.
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httpd.sendRespondError(this.prop,this.session.out,0,400,null,null,null);
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throw new IOException("400 Bad request");
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}
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return header;
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}
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private void handleTransparentProxySupport(httpHeader header) {
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// transparent proxy support is only available for http 1.0 and above connections
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if (this.prop.getProperty(CONNECTION_PROP_HTTP_VER, "HTTP/0.9").equals("HTTP/0.9")) return;
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// if the transparent proxy support was disabled, we have nothing todo here ...
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if (!(httpdProxyHandler.isTransparentProxy && header.containsKey(httpHeader.HOST))) return;
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try {
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String dstHost, dstHostSocket = (String) header.get(httpHeader.HOST);
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int idx = dstHostSocket.indexOf(":");
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dstHost = (idx != -1) ? dstHostSocket.substring(0,idx).trim() : dstHostSocket.trim();
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Integer dstPort = (idx != -1) ? Integer.valueOf(dstHostSocket.substring(idx+1)) : new Integer(80);
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if (dstPort.intValue() == 80) {
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if (dstHost.endsWith(".yacy")) {
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// if this peer is accessed via its yacy domain name we need to set the
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// host property to virtualHost to redirect the request to the yacy server
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if (dstHost.endsWith(yacyCore.seedDB.mySeed.getName()+".yacy")) {
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this.prop.setProperty(httpd.CONNECTION_PROP_HOST,virtualHost);
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} else {
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this.prop.setProperty(httpd.CONNECTION_PROP_HOST,dstHostSocket);
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}
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} else {
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InetAddress dstHostAddress = InetAddress.getByName(dstHost);
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if (!(dstHostAddress.isAnyLocalAddress() || dstHostAddress.isLoopbackAddress())) {
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this.prop.setProperty(httpd.CONNECTION_PROP_HOST,dstHostSocket);
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}
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}
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}
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} catch (Exception e) {}
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}
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/**
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* This funciton is used to determine if a persistent connection was requested by the
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* client.
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* @param header the received http-headers
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* @return <code>true</code> if a persistent connection was requested or <code>false</code> otherwise
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*/
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private boolean handlePersistentConnection(httpHeader header) {
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if (!keepAliveSupport) {
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this.prop.put(CONNECTION_PROP_PERSISTENT,"close");
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return false;
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}
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// getting the http version that is used by the client
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String httpVersion = this.prop.getProperty(CONNECTION_PROP_HTTP_VER, "HTTP/0.9");
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// managing keep-alive: in HTTP/0.9 and HTTP/1.0 every connection is closed
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// afterwards. In HTTP/1.1 (and above, in the future?) connections are
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// persistent by default, but closed with the "Connection: close"
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// property.
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boolean persistent = !(httpVersion.equals("HTTP/0.9") || httpVersion.equals("HTTP/1.0"));
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if (((String)header.get(httpHeader.CONNECTION, "keep-alive")).toLowerCase().equals("close") ||
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((String)header.get(httpHeader.PROXY_CONNECTION, "keep-alive")).toLowerCase().equals("close")) {
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persistent = false;
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}
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// if the request does not contain a content-length we have to close the connection
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// independently of the value of the connection header
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if (persistent &&
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this.prop.getProperty(httpd.CONNECTION_PROP_METHOD).equals(httpHeader.METHOD_POST) &&
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!header.containsKey(httpHeader.CONTENT_LENGTH))
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this.prop.put(CONNECTION_PROP_PERSISTENT,"close");
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else this.prop.put(CONNECTION_PROP_PERSISTENT,persistent?"keep-alive":"close");
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return persistent;
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}
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private boolean handleServerAuthentication(httpHeader header) throws IOException {
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// getting the http version that is used by the client
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String httpVersion = this.prop.getProperty(CONNECTION_PROP_HTTP_VER, "HTTP/0.9");
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// reading the authentication settings from switchboard
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if (this.serverAccountBase64MD5 == null)
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this.serverAccountBase64MD5 = switchboard.getConfig("serverAccountBase64MD5", "");
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if (this.serverAccountBase64MD5.length() > 0) {
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String auth = (String) header.get(httpHeader.AUTHORIZATION);
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if (auth == null) {
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// authorization requested, but no authorizeation given in header. Ask for authenticate:
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this.session.out.write((httpVersion + " 401 log-in required" + serverCore.crlfString +
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httpHeader.WWW_AUTHENTICATE + ": Basic realm=\"log-in\"" + serverCore.crlfString +
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serverCore.crlfString).getBytes());
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this.session.out.write((httpHeader.CONTENT_LENGTH + ": 0\r\n").getBytes());
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this.session.out.write("\r\n".getBytes());
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return false;
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} else if (!this.serverAccountBase64MD5.equals(serverCodings.encodeMD5Hex(auth.trim().substring(6)))) {
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// wrong password given: ask for authenticate again
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serverLog.logInfo("HTTPD", "Wrong log-in for account 'server' in HTTPD.GET " + this.prop.getProperty("PATH") + " from IP " + this.clientIP);
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this.session.out.write((httpVersion + " 401 log-in required" + serverCore.crlfString +
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httpHeader.WWW_AUTHENTICATE + ": Basic realm=\"log-in\"" +
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serverCore.crlfString).getBytes());
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this.session.out.write((httpHeader.CONTENT_LENGTH + ": 0\r\n").getBytes());
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this.session.out.write("\r\n".getBytes());
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return false;
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}
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}
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return true;
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}
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private boolean handleProxyAuthentication(httpHeader header) throws IOException {
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// getting the http version that is used by the client
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String httpVersion = this.prop.getProperty("HTTP", "HTTP/0.9");
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// reading the authentication settings from switchboard
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if (this.proxyAccountBase64MD5 == null)
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this.proxyAccountBase64MD5 = switchboard.getConfig("proxyAccountBase64MD5", "");
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if (this.proxyAccountBase64MD5.length() > 0) {
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String auth = (String) header.get(httpHeader.PROXY_AUTHORIZATION,"xxxxxx");
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if (!this.proxyAccountBase64MD5.equals(serverCodings.encodeMD5Hex(auth.trim().substring(6)))) {
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// ask for authenticate
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this.session.out.write((httpVersion + " 407 Proxy Authentication Required" + serverCore.crlfString +
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httpHeader.PROXY_AUTHENTICATE + ": Basic realm=\"log-in\"" + serverCore.crlfString).getBytes());
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this.session.out.write((httpHeader.CONTENT_LENGTH + ": 0\r\n").getBytes());
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this.session.out.write("\r\n".getBytes());
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return false;
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}
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}
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return true;
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}
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public Boolean UNKNOWN(String requestLine) throws IOException {
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int pos;
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String unknownCommand = null, args = null;
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if ((pos = requestLine.indexOf(" ")) > 0) {
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unknownCommand = requestLine.substring(0,pos);
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args = requestLine.substring(pos+1);
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} else {
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unknownCommand = requestLine;
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args = "";
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}
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parseQuery(unknownCommand, args);
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String httpVersion = this.prop.getProperty(httpd.CONNECTION_PROP_HTTP_VER,"HTTP/0.9");
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sendRespondError(this.prop,this.session.out,0,501,null,unknownCommand + " method not implemented",null);
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return serverCore.TERMINATE_CONNECTION;
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}
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public Boolean EMPTY(String arg) throws IOException {
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if (++this.emptyRequestCount > 10) return serverCore.TERMINATE_CONNECTION;
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return serverCore.RESUME_CONNECTION;
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}
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public Boolean TRACE(String arg) throws IOException {
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sendRespondError(this.prop,this.session.out,0,501,null,"TRACE method not implemented",null);
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return serverCore.TERMINATE_CONNECTION;
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}
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public Boolean OPTIONS(String arg) throws IOException {
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sendRespondError(this.prop,this.session.out,0,501,null,"OPTIONS method not implemented",null);
|
|
return serverCore.TERMINATE_CONNECTION;
|
|
}
|
|
|
|
|
|
public Boolean GET(String arg) throws IOException {
|
|
try {
|
|
// parsing the http request line
|
|
parseQuery(httpHeader.METHOD_GET,arg);
|
|
|
|
// we now know the HTTP version. depending on that, we read the header
|
|
String httpVersion = this.prop.getProperty(CONNECTION_PROP_HTTP_VER, "HTTP/0.9");
|
|
httpHeader header = (httpVersion.equals("HTTP/0.9")) ? new httpHeader(reverseMappingCache)
|
|
: readHeader();
|
|
|
|
// handling transparent proxy support
|
|
this.handleTransparentProxySupport(header);
|
|
|
|
// determines if the connection should be kept alive
|
|
handlePersistentConnection(header);
|
|
|
|
if (this.prop.getProperty(CONNECTION_PROP_HOST).equals(virtualHost)) {
|
|
// pass to server
|
|
if (this.allowServer) {
|
|
|
|
/*
|
|
* Handling SOAP Requests here ...
|
|
*/
|
|
if (this.prop.containsKey(CONNECTION_PROP_PATH) && this.prop.getProperty(CONNECTION_PROP_PATH).startsWith("/soap")) {
|
|
if (soapHandler == null) {
|
|
try {
|
|
Class soapHandlerClass = Class.forName("de.anomic.soap.httpdSoapHandler");
|
|
Constructor classConstructor = soapHandlerClass.getConstructor( new Class[] { serverSwitch.class } );
|
|
soapHandler = (httpdHandler) classConstructor.newInstance(new Object[] { this.switchboard });
|
|
} catch (Exception e) {
|
|
sendRespondHeader(this.prop,this.session.out,httpVersion,503,null);
|
|
return serverCore.TERMINATE_CONNECTION;
|
|
} catch (NoClassDefFoundError e) {
|
|
sendRespondError(this.prop,this.session.out,4,503,null,"SOAP Extension not installed",null);
|
|
return serverCore.TERMINATE_CONNECTION;
|
|
} catch (Error e) {
|
|
sendRespondHeader(this.prop,this.session.out,httpVersion,503,null);
|
|
return serverCore.TERMINATE_CONNECTION;
|
|
}
|
|
}
|
|
soapHandler.doGet(this.prop, header, this.session.out);
|
|
|
|
/*
|
|
* Handling HTTP requests here ...
|
|
*/
|
|
} else {
|
|
if (this.handleServerAuthentication(header)) {
|
|
if (fileHandler == null) fileHandler = new httpdFileHandler(this.switchboard);
|
|
fileHandler.doGet(this.prop, header, this.session.out);
|
|
}
|
|
}
|
|
} else {
|
|
// not authorized through firewall blocking (ip does not match filter)
|
|
this.session.out.write((httpVersion + " 403 refused (IP not granted)" + serverCore.crlfString + serverCore.crlfString + "you are not allowed to connect to this server, because you are using the non-granted IP " + clientIP + ". allowed are only connections that match with the following filter: " + switchboard.getConfig("serverClient", "*") + serverCore.crlfString).getBytes());
|
|
return serverCore.TERMINATE_CONNECTION;
|
|
}
|
|
} else {
|
|
// pass to proxy
|
|
if (this.allowProxy) {
|
|
if (this.handleProxyAuthentication(header)) {
|
|
if (proxyHandler != null) proxyHandler = new httpdProxyHandler(this.switchboard);
|
|
proxyHandler.doGet(this.prop, header, this.session.out);
|
|
}
|
|
} else {
|
|
// not authorized through firewall blocking (ip does not match filter)
|
|
this.session.out.write((httpVersion + " 403 refused (IP not granted)" + serverCore.crlfString + serverCore.crlfString + "you are not allowed to connect to this proxy, because you are using the non-granted IP " + clientIP + ". allowed are only connections that match with the following filter: " + switchboard.getConfig("proxyClient", "*") + serverCore.crlfString).getBytes());
|
|
return serverCore.TERMINATE_CONNECTION;
|
|
}
|
|
}
|
|
|
|
return this.prop.getProperty(CONNECTION_PROP_PERSISTENT).equals("keep-alive") ? serverCore.RESUME_CONNECTION : serverCore.TERMINATE_CONNECTION;
|
|
} catch (Exception e) {
|
|
logUnexpectedError(e);
|
|
return serverCore.TERMINATE_CONNECTION;
|
|
}
|
|
}
|
|
|
|
private void logUnexpectedError(Exception e) {
|
|
if (e instanceof InterruptedException) {
|
|
this.log.logInfo("Interruption detected");
|
|
} else {
|
|
String errorMsg = e.getMessage();
|
|
if (errorMsg != null) {
|
|
if (errorMsg.startsWith("Socket closed")) {
|
|
this.log.logInfo("httpd shutdown detected ...");
|
|
} else if ((errorMsg.startsWith("Broken pipe") || errorMsg.startsWith("Connection reset"))) {
|
|
// client closed the connection, so we just end silently
|
|
this.log.logInfo("Client unexpectedly closed connection");
|
|
} else {
|
|
this.log.logSevere("Unexpected Error. " + e.getClass().getName() + ": " + e.getMessage(),e);
|
|
}
|
|
} else {
|
|
this.log.logSevere("Unexpected Error. " + e.getClass().getName(),e);
|
|
}
|
|
}
|
|
}
|
|
|
|
public Boolean HEAD(String arg) throws IOException {
|
|
try {
|
|
parseQuery(httpHeader.METHOD_HEAD,arg);
|
|
|
|
// we now know the HTTP version. depending on that, we read the header
|
|
httpHeader header;
|
|
String httpVersion = prop.getProperty("HTTP", "HTTP/0.9");
|
|
if (httpVersion.equals("HTTP/0.9")) header = new httpHeader(reverseMappingCache);
|
|
else header = readHeader();
|
|
|
|
// handle transparent proxy support
|
|
this.handleTransparentProxySupport(header);
|
|
|
|
// determines if the connection should be kept alive
|
|
boolean persistent = handlePersistentConnection(header);
|
|
|
|
// return multi-line message
|
|
if (this.prop.getProperty("HOST").equals(virtualHost)) {
|
|
// pass to server
|
|
if (allowServer) {
|
|
if (handleServerAuthentication(header)) {
|
|
if (fileHandler == null) fileHandler = new httpdFileHandler(this.switchboard);
|
|
fileHandler.doHead(prop, header, this.session.out);
|
|
}
|
|
} else {
|
|
// not authorized through firewall blocking (ip does not match filter)
|
|
session.out.write((httpVersion + " 403 refused (IP not granted)" +
|
|
serverCore.crlfString).getBytes());
|
|
return serverCore.TERMINATE_CONNECTION;
|
|
}
|
|
} else {
|
|
// pass to proxy
|
|
if (allowProxy) {
|
|
if (handleProxyAuthentication(header)) {
|
|
if (proxyHandler != null) proxyHandler = new httpdProxyHandler(this.switchboard);
|
|
proxyHandler.doHead(prop, header, this.session.out);
|
|
}
|
|
} else {
|
|
// not authorized through firewall blocking (ip does not match filter)
|
|
session.out.write((httpVersion + " 403 refused (IP not granted)" +
|
|
serverCore.crlfString).getBytes());
|
|
return serverCore.TERMINATE_CONNECTION;
|
|
}
|
|
}
|
|
return this.prop.getProperty(CONNECTION_PROP_PERSISTENT).equals("keep-alive") ? serverCore.RESUME_CONNECTION : serverCore.TERMINATE_CONNECTION;
|
|
} catch (Exception e) {
|
|
logUnexpectedError(e);
|
|
return serverCore.TERMINATE_CONNECTION;
|
|
}
|
|
}
|
|
|
|
public Boolean POST(String arg) throws IOException {
|
|
try {
|
|
parseQuery("POST",arg);
|
|
|
|
// we now know the HTTP version. depending on that, we read the header
|
|
httpHeader header;
|
|
String httpVersion = prop.getProperty("HTTP", "HTTP/0.9");
|
|
if (httpVersion.equals("HTTP/0.9")) header = new httpHeader(reverseMappingCache);
|
|
else header = readHeader();
|
|
|
|
// handle transparent proxy support
|
|
this.handleTransparentProxySupport(header);
|
|
|
|
// determines if the connection should be kept alive
|
|
boolean persistent = handlePersistentConnection(header);
|
|
|
|
// return multi-line message
|
|
if (prop.getProperty("HOST").equals(virtualHost)) {
|
|
// pass to server
|
|
if (allowServer) {
|
|
|
|
/*
|
|
* Handling SOAP Requests here ...
|
|
*/
|
|
if (this.prop.containsKey("PATH") && this.prop.getProperty("PATH").startsWith("/soap")) {
|
|
if (soapHandler == null) {
|
|
try {
|
|
// creating the soap handler class by name
|
|
Class soapHandlerClass = Class.forName("de.anomic.soap.httpdSoapHandler");
|
|
|
|
// Look for the proper constructor
|
|
Constructor soapHandlerConstructor = soapHandlerClass.getConstructor( new Class[] { serverSwitch.class } );
|
|
|
|
// creating the new object
|
|
soapHandler = (httpdHandler)soapHandlerConstructor.newInstance( new Object[] { this.switchboard } );
|
|
} catch (Exception e) {
|
|
sendRespondHeader(this.prop,this.session.out,httpVersion,503,null);
|
|
return serverCore.TERMINATE_CONNECTION;
|
|
} catch (NoClassDefFoundError e) {
|
|
sendRespondError(this.prop,this.session.out,4,503,"SOAP Extension not installed","SOAP Extension not installed",null);
|
|
return serverCore.TERMINATE_CONNECTION;
|
|
} catch (Error e) {
|
|
sendRespondHeader(this.prop,this.session.out,httpVersion,503,null);
|
|
return serverCore.TERMINATE_CONNECTION;
|
|
}
|
|
}
|
|
soapHandler.doPost(prop, header, this.session.out, this.session.in);
|
|
/*
|
|
* Handling normal HTTP requests here ...
|
|
*/
|
|
} else {
|
|
if (handleServerAuthentication(header)) {
|
|
if (fileHandler == null) fileHandler = new httpdFileHandler(this.switchboard);
|
|
fileHandler.doPost(prop, header, this.session.out, this.session.in);
|
|
}
|
|
}
|
|
} else {
|
|
// not authorized through firewall blocking (ip does not match filter)
|
|
session.out.write((httpVersion + " 403 refused (IP not granted)" + serverCore.crlfString + serverCore.crlfString + "you are not allowed to connect to this server, because you are using the non-granted IP " + clientIP + ". allowed are only connections that match with the following filter: " + switchboard.getConfig("serverClient", "*") + serverCore.crlfString).getBytes());
|
|
return serverCore.TERMINATE_CONNECTION;
|
|
}
|
|
} else {
|
|
// pass to proxy
|
|
if (allowProxy) {
|
|
if (handleProxyAuthentication(header)) {
|
|
if (proxyHandler != null) proxyHandler = new httpdProxyHandler(this.switchboard);
|
|
proxyHandler.doPost(prop, header, this.session.out, this.session.in);
|
|
}
|
|
} else {
|
|
// not authorized through firewall blocking (ip does not match filter)
|
|
session.out.write((httpVersion + " 403 refused (IP not granted)" + serverCore.crlfString + serverCore.crlfString + "you are not allowed to connect to this proxy, because you are using the non-granted IP " + clientIP + ". allowed are only connections that match with the following filter: " + switchboard.getConfig("proxyClient", "*") + serverCore.crlfString).getBytes());
|
|
return serverCore.TERMINATE_CONNECTION;
|
|
}
|
|
}
|
|
//return serverCore.RESUME_CONNECTION;
|
|
return this.prop.getProperty(CONNECTION_PROP_PERSISTENT).equals("keep-alive") ? serverCore.RESUME_CONNECTION : serverCore.TERMINATE_CONNECTION;
|
|
} catch (Exception e) {
|
|
logUnexpectedError(e);
|
|
return serverCore.TERMINATE_CONNECTION;
|
|
}
|
|
}
|
|
|
|
|
|
public Boolean CONNECT(String arg) throws IOException {
|
|
// establish a ssh-tunneled http connection
|
|
// this is to support https
|
|
|
|
// parse HTTP version
|
|
int pos = arg.indexOf(" ");
|
|
String httpVersion = "HTTP/1.0";
|
|
if (pos >= 0) {
|
|
httpVersion = arg.substring(pos + 1);
|
|
arg = arg.substring(0, pos);
|
|
}
|
|
|
|
if (!(allowProxy)) {
|
|
// not authorized through firewall blocking (ip does not match filter)
|
|
session.out.write((httpVersion + " 403 refused (IP not granted)" + serverCore.crlfString + serverCore.crlfString + "you are not allowed to connect to this proxy, because you are using the non-granted IP " + clientIP + ". allowed are only connections that match with the following filter: " + switchboard.getConfig("proxyClient", "*") + serverCore.crlfString).getBytes());
|
|
return serverCore.TERMINATE_CONNECTION;
|
|
}
|
|
|
|
// parse port
|
|
pos = arg.indexOf(":");
|
|
int port = 443;
|
|
if (pos >= 0) {
|
|
port = Integer.parseInt(arg.substring(pos + 1));
|
|
arg = arg.substring(0, pos);
|
|
}
|
|
|
|
// arg is now the host string
|
|
|
|
// parse remaining lines
|
|
httpHeader header = readHeader();
|
|
|
|
if (port != 443) {
|
|
// security: connection only to ssl port
|
|
// we send a 403 (forbidden) error back
|
|
session.out.write((httpVersion + " 403 Connection to non-443 forbidden" +
|
|
serverCore.crlfString + serverCore.crlfString).getBytes());
|
|
return serverCore.TERMINATE_CONNECTION;
|
|
}
|
|
|
|
// prepare to pass values
|
|
Properties prop = new Properties();
|
|
prop.setProperty("HOST", arg);
|
|
prop.setProperty("PORT", Integer.toString(port));
|
|
prop.setProperty("HTTP", httpVersion);
|
|
|
|
// pass to proxy
|
|
if (allowProxy) {
|
|
if (handleProxyAuthentication(header)) {
|
|
if (proxyHandler != null) proxyHandler = new httpdProxyHandler(this.switchboard);
|
|
proxyHandler.doConnect(prop, header, this.session.in, this.session.out);
|
|
}
|
|
} else {
|
|
// not authorized through firewall blocking (ip does not match filter)
|
|
session.out.write((httpVersion + " 403 refused (IP not granted)" + serverCore.crlfString + serverCore.crlfString + "you are not allowed to connect to this proxy, because you are using the non-granted IP " + clientIP + ". allowed are only connections that match with the following filter: " + switchboard.getConfig("proxyClient", "*") + serverCore.crlfString).getBytes());
|
|
}
|
|
|
|
return serverCore.TERMINATE_CONNECTION;
|
|
}
|
|
|
|
|
|
private final Properties parseQuery(String cmd, String s) {
|
|
|
|
// reset property from previous run
|
|
this.prop.clear();
|
|
this.emptyRequestCount = 0;
|
|
|
|
// storing informations about the request
|
|
this.prop.setProperty(CONNECTION_PROP_METHOD, cmd);
|
|
this.prop.setProperty(CONNECTION_PROP_REQUESTLINE,cmd + " " + s);
|
|
this.prop.setProperty(CONNECTION_PROP_CLIENTIP, this.clientIP);
|
|
|
|
// counting the amount of received requests within this permanent conneciton
|
|
this.prop.setProperty(CONNECTION_PROP_KEEP_ALIVE_COUNT, Integer.toString(++this.keepAliveRequestCount));
|
|
|
|
// this parses a whole URL
|
|
if (s.length() == 0) {
|
|
this.prop.setProperty(CONNECTION_PROP_HOST, virtualHost);
|
|
this.prop.setProperty(CONNECTION_PROP_PATH, "/");
|
|
this.prop.setProperty(CONNECTION_PROP_HTTP_VER, "HTTP/0.9");
|
|
this.prop.setProperty(CONNECTION_PROP_EXT, "");
|
|
return this.prop;
|
|
}
|
|
|
|
// store the version propery "HTTP" and cut the query at both ends
|
|
int sep = s.indexOf(" ");
|
|
if (sep >= 0) {
|
|
// HTTP version is given
|
|
this.prop.setProperty(CONNECTION_PROP_HTTP_VER, s.substring(sep + 1).trim());
|
|
s = s.substring(0, sep).trim(); // cut off HTTP version mark
|
|
} else {
|
|
// HTTP version is not given, it will be treated as ver 0.9
|
|
this.prop.setProperty(CONNECTION_PROP_HTTP_VER, "HTTP/0.9");
|
|
}
|
|
|
|
// properties of the query are stored with the prefix "&"
|
|
// additionally, the values URL and ARGC are computed
|
|
|
|
String argsString = "";
|
|
sep = s.indexOf("?");
|
|
if (sep >= 0) {
|
|
// there are values attached to the query string
|
|
argsString = s.substring(sep + 1); // cut haed from tail of query
|
|
s = s.substring(0, sep);
|
|
}
|
|
this.prop.setProperty(CONNECTION_PROP_URL, s); // store URL
|
|
//System.out.println("HTTPD: ARGS=" + argsString);
|
|
if (argsString.length() != 0) this.prop.setProperty(CONNECTION_PROP_ARGS, argsString); // store arguments in original form
|
|
|
|
// find out file extension
|
|
sep = s.lastIndexOf(".");
|
|
if (sep >= 0) {
|
|
if (s.indexOf("?", sep + 1) >= sep)
|
|
this.prop.setProperty(CONNECTION_PROP_EXT, s.substring(sep + 1, s.indexOf("?", sep + 1)).toLowerCase());
|
|
else if (s.indexOf("#", sep + 1) >= sep)
|
|
this.prop.setProperty(CONNECTION_PROP_EXT, s.substring(sep + 1, s.indexOf("#", sep + 1)).toLowerCase());
|
|
else
|
|
this.prop.setProperty(CONNECTION_PROP_EXT, s.substring(sep + 1).toLowerCase());
|
|
} else {
|
|
this.prop.setProperty(CONNECTION_PROP_EXT, "");
|
|
}
|
|
|
|
// finally find host string
|
|
if (s.toUpperCase().startsWith("HTTP://")) {
|
|
// a host was given. extract it and set path
|
|
s = s.substring(7);
|
|
sep = s.indexOf("/");
|
|
if (sep < 0) {
|
|
// this is a malformed url, something like
|
|
// http://index.html
|
|
// we are lazy and guess that it means
|
|
// /index.html
|
|
// which is a localhost access to the file servlet
|
|
this.prop.setProperty(CONNECTION_PROP_HOST, virtualHost);
|
|
this.prop.setProperty(CONNECTION_PROP_PATH, "/" + s);
|
|
} else {
|
|
// THIS IS THE "GOOD" CASE
|
|
// a perfect formulated url
|
|
this.prop.setProperty(CONNECTION_PROP_HOST, s.substring(0, sep));
|
|
this.prop.setProperty(CONNECTION_PROP_PATH, s.substring(sep)); // yes, including beginning "/"
|
|
}
|
|
} else {
|
|
// no host in url. set path
|
|
if (s.startsWith("/")) {
|
|
// thats also fine, its a perfect localhost access
|
|
// in this case, we simulate a
|
|
// http://localhost/s
|
|
// access by setting a virtual host
|
|
this.prop.setProperty(CONNECTION_PROP_HOST, virtualHost);
|
|
this.prop.setProperty(CONNECTION_PROP_PATH, s);
|
|
} else {
|
|
// the client 'forgot' to set a leading '/'
|
|
// this is the same case as above, with some lazyness
|
|
this.prop.setProperty(CONNECTION_PROP_HOST, virtualHost);
|
|
this.prop.setProperty(CONNECTION_PROP_PATH, "/" + s);
|
|
}
|
|
}
|
|
return this.prop;
|
|
}
|
|
|
|
|
|
// some static methods that needs to be used from any CGI
|
|
// and also by the httpdFileHandler
|
|
// but this belongs to the protocol handler, this class.
|
|
|
|
|
|
public static int parseArgs(serverObjects args, PushbackInputStream in, int length) throws IOException {
|
|
// this is a quick hack using a previously coded parseMultipart based on a buffer
|
|
// should be replaced sometime by a 'right' implementation
|
|
byte[] buffer = new byte[length];
|
|
in.read(buffer);
|
|
int argc = parseArgs(args, new String(buffer));
|
|
buffer = null;
|
|
return argc;
|
|
}
|
|
|
|
public static int parseArgs(serverObjects args, String argsString) {
|
|
// this parses a arg string that can either be attached to a URL query
|
|
// or can be given as result of a post method
|
|
// the String argsString is supposed to be constructed as
|
|
// <key1>=<value1>'&'<key2>=<value2>'&'<key3>=<value3>
|
|
// the calling function must strip off a possible leading '?' char
|
|
if (argsString.length() == 0) return 0;
|
|
argsString = argsString + "&"; // for technical reasons
|
|
int sep;
|
|
int eqp;
|
|
int argc = 0;
|
|
// Textfield1=default+value+Textfield+1&Textfield2=default+value+Textfield+2&selection1=sel1&selection2=othervalue1&selection2=sel2&selection3=sel3&Menu1=SubEnry11&radio1=button1&check1=button2&check1=button3&hidden1=&sButton1=enter+%281%29
|
|
while (argsString.length() > 0) {
|
|
eqp = argsString.indexOf("=");
|
|
sep = argsString.indexOf("&");
|
|
if ((eqp <= 0) || (sep <= 0)) break;
|
|
// resulting equations are inserted into the property args with leading '&'
|
|
args.put(parseArg(argsString.substring(0, eqp)), parseArg(argsString.substring(eqp + 1, sep)));
|
|
argsString = argsString.substring(sep + 1);
|
|
argc++;
|
|
}
|
|
// we return the number of parsed arguments
|
|
return argc;
|
|
}
|
|
|
|
private static String parseArg(String s) {
|
|
// this parses a given value-string from a http property
|
|
// we replace all "+" by spaces
|
|
// and resolve %-escapes with two-digit hex attributes
|
|
int pos = 0;
|
|
StringBuffer result = new StringBuffer(s.length());
|
|
while (pos < s.length()) {
|
|
if (s.charAt(pos) == '+') {
|
|
result.append(" ");
|
|
pos++;
|
|
} else if (s.charAt(pos) == '%') {
|
|
result.append((char) Integer.parseInt(s.substring(pos + 1, pos + 3), 16));
|
|
pos += 3;
|
|
} else {
|
|
result.append(s.charAt(pos++));
|
|
}
|
|
}
|
|
return result.toString();
|
|
}
|
|
|
|
|
|
public static HashMap parseMultipart(httpHeader header, serverObjects args, PushbackInputStream in, int length) throws IOException {
|
|
// this is a quick hack using a previously coded parseMultipart based on a buffer
|
|
// should be replaced sometime by a 'right' implementation
|
|
byte[] buffer = new byte[length];
|
|
int c, a = 0;
|
|
while (a < length) {
|
|
c = in.read(buffer, a, length - a);
|
|
if (c <= 0) break;
|
|
a += c;
|
|
}
|
|
//System.out.println("MULTIPART-BUFFER=" + new String(buffer));
|
|
HashMap files = parseMultipart(header, args, buffer);
|
|
buffer = null;
|
|
return files;
|
|
}
|
|
|
|
public static HashMap parseMultipart(httpHeader header, serverObjects args, byte[] buffer) throws IOException {
|
|
// we parse a multipart message and put results into the properties
|
|
// find/identify boundary marker
|
|
//System.out.println("DEBUG parseMultipart = <<" + new String(buffer) + ">>");
|
|
String s = (String) header.get(httpHeader.CONTENT_TYPE);
|
|
if (s == null) return null;
|
|
int q;
|
|
int p = s.toLowerCase().indexOf("boundary=");
|
|
if (p < 0) throw new IOException("boundary marker in multipart not found");
|
|
// boundaries start with additional leading "--", see RFC1867
|
|
byte[] boundary = ("--" + s.substring(p + 9)).getBytes();
|
|
|
|
// eat up first boundary
|
|
// the buffer must start with a boundary
|
|
byte[] line = readLine(0, buffer);
|
|
int pos = nextPos;
|
|
if ((line == null) || (!(equals(line, 0, boundary, 0, boundary.length))))
|
|
throw new IOException("boundary not recognized: " + ((line == null) ? "NULL" : new String(line)) + ", boundary = " + new String(boundary));
|
|
|
|
// we need some constants
|
|
byte[] namec = (new String("name=")).getBytes();
|
|
byte[] filenamec = (new String("filename=")).getBytes();
|
|
byte[] semicolonc = (new String(";")).getBytes();
|
|
byte[] quotec = new byte[] {(byte) '"'};
|
|
|
|
// now loop over boundaries
|
|
byte [] name;
|
|
byte [] filename;
|
|
HashMap files = new HashMap();
|
|
int argc = 0;
|
|
//System.out.println("DEBUG: parsing multipart body:" + new String(buffer));
|
|
while (pos < buffer.length) { // boundary enumerator
|
|
// here the 'pos' marker points to the first line in a section after a boundary line
|
|
line = readLine(pos, buffer); pos = nextPos;
|
|
// termination if line is empty
|
|
if (line.length == 0) break;
|
|
// find name tag in line
|
|
p = indexOf(0, line, namec);
|
|
if (p < 0) throw new IOException("tag name in marker section not found: '" + new String(line) + "'"); // a name tag must always occur
|
|
p += namec.length + 1; // first position of name value
|
|
q = indexOf(p, line, quotec);
|
|
if (q < 0) throw new IOException("missing quote in name tag: '" + new String(line) + "'");
|
|
name = new byte[q - p];
|
|
java.lang.System.arraycopy(line, p, name, 0, q - p);
|
|
// if this line has also a filename attribute, read it
|
|
p = indexOf(q, line, filenamec);
|
|
if (p > 0) {
|
|
p += filenamec.length + 1; // first position of name value
|
|
q = indexOf(p, line, quotec);
|
|
if (q < 0) throw new IOException("missing quote in filename tag: '" + new String(line) + "'");
|
|
filename = new byte[q - p];
|
|
java.lang.System.arraycopy(line, p, filename, 0, q - p);
|
|
} else filename = null;
|
|
// we have what we need. more information lines may follow, but we omit parsing them
|
|
// we just skip until an empty line is reached
|
|
while (pos < buffer.length) { // line skiping
|
|
line = readLine(pos, buffer); pos = nextPos;
|
|
if ((line == null) || (line.length == 0)) break;
|
|
}
|
|
// depending on the filename tag exsistence, read now either a value for the name
|
|
// or a complete uploaded file
|
|
// to know the exact length of the value, we must identify the next boundary
|
|
p = indexOf(pos, buffer, boundary);
|
|
|
|
// if we can't find another boundary, then this is an error in the input
|
|
if (p < 0) {
|
|
serverLog.logSevere("HTTPD", "ERROR in PUT body: no ending boundary. probably missing values");
|
|
break;
|
|
}
|
|
|
|
// we don't know if the value is terminated by lf, cr or crlf
|
|
// (it's suppose to be crlf, but we want to be lazy about wrong terminations)
|
|
if (buffer[p - 2] == serverCore.cr) // ERROR: IndexOutOfBounds: -2
|
|
/* crlf */ q = p - 2;
|
|
else
|
|
/* cr or lf only */ q = p - 1;
|
|
// the above line is wrong if we uploaded a file that has a cr as it's last byte
|
|
// and the client's line termination symbol is only a cr or lf (which would be incorrect)
|
|
// the value is between 'pos' and 'q', while the next marker is 'p'
|
|
line = new byte[q - pos];
|
|
java.lang.System.arraycopy(buffer, pos, line, 0, q - pos);
|
|
// in the 'line' variable we have now either a normal value or an uploadef file
|
|
if (filename == null) {
|
|
args.put(new String(name), new String(line, "ISO-8859-1"));
|
|
} else {
|
|
// we store the file in a hashtable.
|
|
// we use the same key to address the file in the hashtable as we
|
|
// use to address the filename in the properties, but without leading '&'
|
|
args.put(new String(name), new String(filename));
|
|
files.put(new String(name), line);
|
|
}
|
|
argc++;
|
|
// finally, read the next boundary line
|
|
line = readLine(p, buffer);
|
|
pos = nextPos;
|
|
}
|
|
header.put("ARGC", Integer.toString(argc)); // store argument count
|
|
return files;
|
|
}
|
|
|
|
/*
|
|
------------1090358578442
|
|
Content-Disposition: form-data; name="youare"
|
|
|
|
Ty2F86ekSWM5
|
|
------------1090358578442
|
|
Content-Disposition: form-data; name="key"
|
|
|
|
6EkPPOl7
|
|
------------1090358578442
|
|
Content-Disposition: form-data; name="iam"
|
|
|
|
HnTvzwV7SCJR
|
|
------------1090358578442
|
|
Content-Disposition: form-data; name="process"
|
|
|
|
permission
|
|
------------1090358578442
|
|
|
|
*/
|
|
|
|
static int nextPos = -1;
|
|
private static byte[] readLine(int start, byte[] array) {
|
|
// read a string from an array; line ending is always CRLF
|
|
// but we are also fuzzy with that: may also be only CR or LF
|
|
// if no remaining cr, crlf or lf can be found, return null
|
|
if (start > array.length) return null;
|
|
int pos = indexOf(start, array, serverCore.crlf); nextPos = pos + 2;
|
|
if (pos < 0) {pos = indexOf(start, array, new byte[] {serverCore.cr}); nextPos = pos + 1;}
|
|
if (pos < 0) {pos = indexOf(start, array, new byte[] {serverCore.lf}); nextPos = pos + 1;}
|
|
if (pos < 0) {nextPos = start; return null;}
|
|
byte[] result = new byte[pos - start];
|
|
java.lang.System.arraycopy(array, start, result, 0, pos - start);
|
|
return result;
|
|
}
|
|
|
|
public static int indexOf(int start, byte[] array, byte[] pattern) {
|
|
// return a position of a pattern in an array
|
|
if (start > array.length - pattern.length) return -1;
|
|
if (pattern.length == 0) return start;
|
|
int i;
|
|
for (int pos = start; pos <= array.length - pattern.length; pos++)
|
|
if ((array[pos] == pattern[0]) && (equals(array, pos, pattern, 0, pattern.length)))
|
|
return pos;
|
|
return -1;
|
|
}
|
|
|
|
public static boolean equals(byte[] a, int aoff, byte[] b, int boff, int len) {
|
|
//System.out.println("equals: a = " + new String(a) + ", aoff = " + aoff + ", b = " + new String(b) + ", boff = " + boff + ", length = " + len);
|
|
if ((aoff + len > a.length) || (boff + len > b.length)) return false;
|
|
for (int i = 0; i < len; i++) if (a[aoff + i] != b[boff + i]) return false;
|
|
//System.out.println("TRUE!");
|
|
return true;
|
|
}
|
|
|
|
public Object clone() {
|
|
return new httpd(this.switchboard, new httpdFileHandler(this.switchboard), new httpdProxyHandler(this.switchboard));
|
|
}
|
|
|
|
public static final void sendRespondBody(
|
|
Properties conProp,
|
|
OutputStream respond,
|
|
byte[] body
|
|
) throws IOException {
|
|
respond.write(body);
|
|
respond.flush();
|
|
}
|
|
|
|
public static final void sendRespondError(
|
|
Properties conProp,
|
|
OutputStream respond,
|
|
int errorcase,
|
|
int httpStatusCode,
|
|
String httpStatusText,
|
|
String detailedErrorMsg,
|
|
Exception stackTrace
|
|
) throws IOException {
|
|
|
|
FileInputStream fis = null;
|
|
ByteArrayOutputStream o = null;
|
|
try {
|
|
// setting the proper http status message
|
|
String httpVersion = conProp.getProperty(httpd.CONNECTION_PROP_HTTP_VER,"HTTP/1.1");
|
|
if ((httpStatusText == null)||(httpStatusText.length()==0)) {
|
|
if (httpVersion.equals("HTTP/1.0") && httpHeader.http1_0.containsKey(Integer.toString(httpStatusCode)))
|
|
httpStatusText = (String) httpHeader.http1_0.get(Integer.toString(httpStatusCode));
|
|
else if (httpVersion.equals("HTTP/1.1") && httpHeader.http1_1.containsKey(Integer.toString(httpStatusCode)))
|
|
httpStatusText = (String) httpHeader.http1_1.get(Integer.toString(httpStatusCode));
|
|
else httpStatusText = "Unknown";
|
|
}
|
|
|
|
// generating the desired request url
|
|
String host = conProp.getProperty(httpd.CONNECTION_PROP_HOST);
|
|
String path = conProp.getProperty(httpd.CONNECTION_PROP_PATH);
|
|
String args = conProp.getProperty(httpd.CONNECTION_PROP_ARGS);
|
|
|
|
int port = 80, pos = host.indexOf(":");
|
|
if (pos != -1) {
|
|
port = Integer.parseInt(host.substring(pos + 1));
|
|
host = host.substring(0, pos);
|
|
}
|
|
|
|
String urlString;
|
|
try {
|
|
urlString = (new URL("http", host, port, (args == null) ? path : path + "?" + args)).toString();
|
|
} catch (MalformedURLException e) {
|
|
urlString = "invalid URL";
|
|
}
|
|
|
|
// set rewrite values
|
|
serverObjects tp = new serverObjects();
|
|
|
|
// tp.put("host", serverCore.publicIP().getHostAddress());
|
|
// tp.put("port", switchboard.getConfig("port", "8080"));
|
|
tp.put("peerName", yacyCore.seedDB.mySeed.getName());
|
|
tp.put("host", serverCore.publicIP());
|
|
tp.put("port", (serverCore.portForwardingEnabled && (serverCore.portForwarding != null))
|
|
? Integer.toString(serverCore.portForwarding.getPort())
|
|
: switchboard.getConfig("port", "8080"));
|
|
|
|
tp.put("errorMessageType", errorcase);
|
|
tp.put("httpStatus", Integer.toString(httpStatusCode) + " " + httpStatusText);
|
|
tp.put("requestMethod", conProp.getProperty(httpd.CONNECTION_PROP_METHOD));
|
|
tp.put("requestURL", urlString);
|
|
tp.put("errorMessageType_detailedErrorMsg",(detailedErrorMsg != null) ? detailedErrorMsg : "");
|
|
|
|
// building the stacktrace
|
|
if (stackTrace != null) {
|
|
tp.put("printStackTrace",1);
|
|
|
|
serverByteBuffer errorMsg = new serverByteBuffer(100);
|
|
errorMsg.append("<i>Exception occurred:</i> <b>")
|
|
.append(stackTrace.toString())
|
|
.append("</b>\r\n\r\n")
|
|
.append("</i>TRACE:</i>\r\n");
|
|
stackTrace.printStackTrace(new PrintStream(errorMsg));
|
|
errorMsg.append("\r\n");
|
|
|
|
tp.put("printStackTrace_stacktrace",errorMsg.toString().replaceAll("\n","<br>"));
|
|
} else {
|
|
tp.put("printStackTrace",0);
|
|
}
|
|
|
|
// Generated Tue, 23 Aug 2005 11:19:14 GMT by brain.wg (squid/2.5.STABLE3)
|
|
// adding some system information
|
|
String systemDate = httpc.dateString(httpc.nowDate());
|
|
tp.put("date",systemDate);
|
|
|
|
// rewrite the file
|
|
File htRootPath = new File(switchboard.getRootPath(), switchboard.getConfig("htRootPath","htroot"));
|
|
|
|
httpTemplate.writeTemplate(
|
|
fis = new FileInputStream(new File(htRootPath, "/proxymsg/error.html")),
|
|
o = new ByteArrayOutputStream(),
|
|
tp,
|
|
"-UNRESOLVED_PATTERN-".getBytes()
|
|
);
|
|
byte[] result = o.toByteArray();
|
|
o.close(); o = null;
|
|
|
|
httpHeader header = new httpHeader();
|
|
header.put(httpHeader.DATE, systemDate);
|
|
header.put(httpHeader.CONTENT_TYPE, "text/html");
|
|
header.put(httpHeader.CONTENT_LENGTH, Integer.toString(result.length));
|
|
header.put(httpHeader.PRAGMA, "no-cache");
|
|
sendRespondHeader(conProp,respond,httpVersion,httpStatusCode,httpStatusText,header);
|
|
|
|
// write the array to the client
|
|
serverFileUtils.write(result, respond);
|
|
respond.flush();
|
|
} catch (Exception e) {
|
|
throw new IOException(e.getMessage());
|
|
} finally {
|
|
if (fis != null) try { fis.close(); } catch (Exception e) {}
|
|
if (o != null) try { o.close(); } catch (Exception e) {}
|
|
}
|
|
}
|
|
|
|
public static final void sendRespondHeader(
|
|
Properties conProp,
|
|
OutputStream respond,
|
|
String httpVersion,
|
|
int httpStatusCode,
|
|
String httpStatusText,
|
|
long contentLength
|
|
) throws IOException {
|
|
sendRespondHeader(conProp,respond,httpVersion,httpStatusCode,httpStatusText,null,contentLength,null,null,null,null,null);
|
|
}
|
|
|
|
public static final void sendRespondHeader(
|
|
Properties conProp,
|
|
OutputStream respond,
|
|
String httpVersion,
|
|
int httpStatusCode,
|
|
String httpStatusText,
|
|
String contentType,
|
|
long contentLength,
|
|
Date moddate,
|
|
Date expires,
|
|
String cookie,
|
|
String contentEnc,
|
|
String transferEnc
|
|
) throws IOException {
|
|
|
|
httpHeader headers = new httpHeader();
|
|
|
|
headers.put(httpHeader.SERVER, "AnomicHTTPD (www.anomic.de)");
|
|
headers.put(httpHeader.DATE, httpc.dateString(httpc.nowDate()));
|
|
headers.put(httpHeader.LAST_MODIFIED, httpc.dateString(moddate));
|
|
headers.put(httpHeader.PRAGMA, "no-cache");
|
|
|
|
if (contentLength > 0) headers.put(httpHeader.CONTENT_TYPE, (contentType == null)? "text/html" : contentType);
|
|
if (contentLength > 0) headers.put(httpHeader.CONTENT_LENGTH, Long.toString(contentLength));
|
|
if (cookie != null) headers.put(httpHeader.SET_COOKIE, cookie);
|
|
if (expires != null) headers.put(httpHeader.EXPIRES, httpc.dateString(expires));
|
|
if (contentEnc != null) headers.put(httpHeader.CONTENT_ENCODING, contentEnc);
|
|
if (transferEnc != null) headers.put(httpHeader.TRANSFER_ENCODING, transferEnc);
|
|
|
|
sendRespondHeader(conProp, respond, httpVersion, httpStatusCode, httpStatusText, headers);
|
|
}
|
|
|
|
public static final void sendRespondHeader(
|
|
Properties conProp,
|
|
OutputStream respond,
|
|
String httpVersion,
|
|
int httpStatusCode,
|
|
httpHeader header
|
|
) throws IOException {
|
|
sendRespondHeader(conProp,respond,httpVersion,httpStatusCode,null,header);
|
|
}
|
|
|
|
public static final void sendRespondHeader(
|
|
Properties conProp,
|
|
OutputStream respond,
|
|
String httpVersion,
|
|
int httpStatusCode,
|
|
String httpStatusText,
|
|
httpHeader header
|
|
) throws IOException {
|
|
|
|
if (respond == null) throw new NullPointerException("The outputstream must not be null.");
|
|
if (conProp == null) throw new NullPointerException("The connection property structure must not be null.");
|
|
if (httpVersion == null) httpVersion = conProp.getProperty(httpd.CONNECTION_PROP_HTTP_VER,"HTTP/1.1");
|
|
|
|
try {
|
|
if ((httpStatusText == null)||(httpStatusText.length()==0)) {
|
|
if (httpVersion.equals("HTTP/1.0") && httpHeader.http1_0.containsKey(Integer.toString(httpStatusCode)))
|
|
httpStatusText = (String) httpHeader.http1_0.get(Integer.toString(httpStatusCode));
|
|
else if (httpVersion.equals("HTTP/1.1") && httpHeader.http1_1.containsKey(Integer.toString(httpStatusCode)))
|
|
httpStatusText = (String) httpHeader.http1_1.get(Integer.toString(httpStatusCode));
|
|
else httpStatusText = "Unknown";
|
|
}
|
|
|
|
// prepare header
|
|
if (!header.containsKey(httpHeader.DATE))
|
|
header.put(httpHeader.DATE, httpc.dateString(httpc.nowDate()));
|
|
if (!header.containsKey(httpHeader.CONTENT_TYPE))
|
|
header.put(httpHeader.CONTENT_TYPE, "text/html"); // fix this
|
|
if (!header.containsKey(httpHeader.CONNECTION) && conProp.containsKey(CONNECTION_PROP_PERSISTENT))
|
|
header.put(httpHeader.CONNECTION, conProp.getProperty(CONNECTION_PROP_PERSISTENT));
|
|
if (!header.containsKey(httpHeader.PROXY_CONNECTION) && conProp.containsKey(CONNECTION_PROP_PERSISTENT))
|
|
header.put(httpHeader.PROXY_CONNECTION, conProp.getProperty(CONNECTION_PROP_PERSISTENT));
|
|
|
|
if (conProp.containsKey(CONNECTION_PROP_PERSISTENT) &&
|
|
conProp.getProperty(CONNECTION_PROP_PERSISTENT).equals("keep-alive") &&
|
|
!header.containsKey(httpHeader.TRANSFER_ENCODING) &&
|
|
!header.containsKey(httpHeader.CONTENT_LENGTH))
|
|
header.put(httpHeader.CONTENT_LENGTH, "0");
|
|
|
|
// adding some yacy specific headers
|
|
header.put(httpHeader.X_YACY_KEEP_ALIVE_REQUEST_COUNT,conProp.getProperty(CONNECTION_PROP_KEEP_ALIVE_COUNT));
|
|
header.put(httpHeader.X_YACY_ORIGINAL_REQUEST_LINE,conProp.getProperty(CONNECTION_PROP_REQUESTLINE));
|
|
|
|
StringBuffer headerStringBuffer = new StringBuffer(560);
|
|
|
|
// write status line
|
|
headerStringBuffer.append(httpVersion).append(" ")
|
|
.append(Integer.toString(httpStatusCode)).append(" ")
|
|
.append(httpStatusText).append("\r\n");
|
|
|
|
// write header
|
|
Iterator i = header.keySet().iterator();
|
|
String key, value;
|
|
char tag;
|
|
int count;
|
|
//System.out.println("vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv");
|
|
while (i.hasNext()) {
|
|
key = (String) i.next();
|
|
tag = key.charAt(0);
|
|
if ((tag != '*') && (tag != '#')) { // '#' in key is reserved for proxy attributes as artificial header values
|
|
count = header.keyCount(key);
|
|
for (int j = 0; j < count; j++) {
|
|
headerStringBuffer.append(key).append(": ").append((String) header.getSingle(key, j)).append("\r\n");
|
|
}
|
|
//System.out.println("#" + key + ": " + value);
|
|
}
|
|
}
|
|
// end header
|
|
headerStringBuffer.append("\r\n");
|
|
|
|
// sending headers to the client
|
|
respond.write(headerStringBuffer.toString().getBytes());
|
|
respond.flush();
|
|
|
|
conProp.put(httpd.CONNECTION_PROP_PROXY_RESPOND_HEADER,header);
|
|
conProp.put(httpd.CONNECTION_PROP_PROXY_RESPOND_STATUS,Integer.toString(httpStatusCode));
|
|
} catch (Exception e) {
|
|
// any interruption may be caused be network error or because the user has closed
|
|
// the windows during transmission. We simply pass it as IOException
|
|
throw new IOException(e.getMessage());
|
|
}
|
|
}
|
|
|
|
public static boolean shallTransportZipped(String path) {
|
|
if ((path == null) || (path.length() == 0)) return true;
|
|
|
|
int pos;
|
|
if ((pos = path.lastIndexOf(".")) != -1) {
|
|
return !disallowZippedContentEncoding.contains(path.substring(pos).toLowerCase());
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
|
|
// public static boolean isTextMime(String mime, Set whitelist) {
|
|
// if (whitelist.contains(mime)) return true;
|
|
// // some mime-types are given as "text/html; charset=...", so look for ";"
|
|
// if (mime.length() == 0) return false;
|
|
// int pos = mime.indexOf(';');
|
|
// if (pos < 0) return false;
|
|
// return whitelist.contains(mime.substring(0, pos));
|
|
// }
|
|
}
|
|
|
|
/*
|
|
###
|
|
### Messages of the Server
|
|
###
|
|
|
|
# success Messages
|
|
HTTPStatus200 = OK; The URL was found. It contents follows.
|
|
HTTPStatus201 = Created; A URL was created in response to a POST.
|
|
HTTPStatus202 = Accepted; The request was accepted for processing later.
|
|
HTTPStatus203 = Non-Authoritative; The information here is unofficial.
|
|
HTTPStatus204 = No Response; The request is successful, but there is no data to send.
|
|
|
|
# redirection
|
|
HTTPStatus300 = Moved; The URL has permanently moved to a new location.
|
|
HTTPStatus301 = Found; The URL can be temporarily found at a new location.
|
|
|
|
# client errors
|
|
HTTPStatus400 = Bad Request; Syntax error in the request.
|
|
HTTPStatus401 = Unauthorized; The client is not authorized to access this web page.
|
|
HTTPStatus402 = Payment Required; A payment is required to access this web page.
|
|
HTTPStatus403 = Forbidden; This URL is forbidden. No authorization is required, it won't help.
|
|
HTTPStatus404 = Not Found; This page is not on the server.
|
|
|
|
# server errors
|
|
HTTPStatus500 = Internal Error; The server encountered an unexpected error.
|
|
HTTPStatus501 = Not Implemented; The client requested an unimplemented feature.
|
|
HTTPStatus502 = Service Overloaded; The server reached the maximum number of connections.
|
|
HTTPStatus503 = Gateway timeout; Fetching data from remote service failed.
|
|
*/
|