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git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4524 6c8d7289-2bf4-0310-a012-ef5d649a1542
1623 lines
66 KiB
Java
1623 lines
66 KiB
Java
// httpc.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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// last major change: 26.02.2004
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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.File;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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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.OutputStreamWriter;
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import java.io.PushbackInputStream;
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import java.io.Writer;
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import java.net.InetAddress;
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import java.net.InetSocketAddress;
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import java.net.MalformedURLException;
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import java.net.Socket;
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import java.net.SocketException;
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import java.net.UnknownHostException;
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import java.text.SimpleDateFormat;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Comparator;
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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.Locale;
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import java.util.Map;
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import java.util.TimeZone;
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import java.util.zip.GZIPInputStream;
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import java.util.zip.GZIPOutputStream;
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import javax.net.ssl.HostnameVerifier;
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import javax.net.ssl.HttpsURLConnection;
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import javax.net.ssl.SSLContext;
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import javax.net.ssl.SSLSocketFactory;
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import javax.net.ssl.TrustManager;
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import javax.net.ssl.X509TrustManager;
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import de.anomic.kelondro.kelondroBase64Order;
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import de.anomic.server.serverByteBuffer;
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import de.anomic.server.serverCore;
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import de.anomic.server.serverDomains;
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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.logging.serverLog;
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import de.anomic.tools.nxTools;
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import de.anomic.yacy.yacyURL;
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/**
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* This class implements an http client. While http access is built-in in java
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* libraries, it is still necessary to implement the network interface since
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* otherwise there is no access to the HTTP/1.0 / HTTP/1.1 header information
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* that comes along each connection.
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*/
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public final class httpc {
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// some constants
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/**
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* Specifies that the httpc is allowed to use gzip content encoding for
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* http post requests
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* @see #POST(String, httpHeader, serverObjects, HashMap)
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*/
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public static final String GZIP_POST_BODY = "GZIP_POST_BODY";
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// final statics
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private static final String vDATE = "20040602";
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private static final int terminalMaxLength = 30000;
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private static final SimpleDateFormat HTTPGMTFormatter = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss zzz", Locale.US);
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static final HashMap<String, String> reverseMappingCache = new HashMap<String, String>();
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private static final HashSet<httpc> activeConnections = new HashSet<httpc>(); // all connections are stored here and deleted when they are finished
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private static final long minimumTime_before_activeConnections_cleanup = 3600000; // 1 Hour
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private static final long minimumTime_before_idleConnections_cleanup = 120000; // 2 Minutes
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private static final int activeConnections_maximum = 64;
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public static final connectionTimeComparator connectionTimeComparatorInstance = new connectionTimeComparator();
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private static int objCounter = 0; // will be increased with each object and is used to return a hash code
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// defined during set-up of switchboard
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public static boolean yacyDebugMode = false;
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// statics to be defined in static section below
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private static SSLSocketFactory theSSLSockFactory = null;
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public static String systemOST;
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public static String userAgent;
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static {
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// set the time zone
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HTTPGMTFormatter.setTimeZone(TimeZone.getTimeZone("GMT")); // The GMT standard date format used in the HTTP protocol
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// set time-out of InetAddress.getByName cache ttl
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java.security.Security.setProperty("networkaddress.cache.ttl" , "60");
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java.security.Security.setProperty("networkaddress.cache.negative.ttl" , "0");
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// initializing a dummy trustManager to enable https connections
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// Create a trust manager that does not validate certificate chains
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TrustManager[] trustAllCerts = new TrustManager[] { new X509TrustManager() {
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public java.security.cert.X509Certificate[] getAcceptedIssuers() {
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return null;
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}
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public void checkClientTrusted(
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java.security.cert.X509Certificate[] certs, String authType) {
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}
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public void checkServerTrusted(
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java.security.cert.X509Certificate[] certs, String authType) {
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}
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} };
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// Install the all-trusting trust manager
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try {
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SSLContext sc = SSLContext.getInstance("SSL");
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// Create empty HostnameVerifier
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HostnameVerifier hv = new HostnameVerifier() {
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public boolean verify(String urlHostName, javax.net.ssl.SSLSession session) {
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// logger.info("Warning: URL Host: "+urlHostName+"
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// vs."+session.getPeerHost());
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return true;
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}
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};
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sc.init(null, trustAllCerts, new java.security.SecureRandom());
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HttpsURLConnection.setDefaultSSLSocketFactory(theSSLSockFactory = sc.getSocketFactory());
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HttpsURLConnection.setDefaultHostnameVerifier(hv);
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} catch (Exception e) {
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}
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// provide system information for client identification
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String loc = System.getProperty("user.timezone", "nowhere");
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int p = loc.indexOf("/");
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if (p > 0) loc = loc.substring(0,p);
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loc = loc + "/" + System.getProperty("user.language", "dumb");
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systemOST =
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System.getProperty("os.arch", "no-os-arch") + " " +
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System.getProperty("os.name", "no-os-name") + " " +
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System.getProperty("os.version", "no-os-version") + "; " +
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"java " + System.getProperty("java.version", "no-java-version") + "; " + loc;
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userAgent = "yacy (www.yacy.net; v" + vDATE + "; " + systemOST + ")";
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}
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// class variables
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private Socket socket = null; // client socket for commands
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public String adressed_host = null;
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public int adressed_port = 80;
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private String target_virtual_host = null;
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// output and input streams for client control connection
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PushbackInputStream clientInput = null;
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private OutputStream clientOutput = null;
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private httpdByteCountInputStream clientInputByteCount = null;
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private httpdByteCountOutputStream clientOutputByteCount = null;
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private boolean remoteProxyUse = false;
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private httpRemoteProxyConfig remoteProxyConfig = null;
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String requestPath = null;
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private boolean allowContentEncoding = true;
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public boolean ssl;
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public long initTime, lastIO;
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public String command;
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public int timeout;
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private int hashIndex;
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/**
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* Initialize the httpc-instance with the given data.
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*
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* @param remoteProxyHost
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* @param remoteProxyPort
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* @throws IOException
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*/
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public httpc(
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String server,
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String vhost,
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int port,
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int timeout,
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boolean ssl,
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httpRemoteProxyConfig theRemoteProxyConfig,
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String incomingByteCountAccounting,
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String outgoingByteCountAccounting
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) throws IOException {
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// remove old connections
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// do NOT remove this check; in case that everything works fine this call does nothing
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// but if in any arror case connections stay open, this will ensure that the peer keeps running and the host server is not blocked from working
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checkIdleConnections();
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assert timeout != 0;
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// register new connection
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this.hashIndex = objCounter;
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objCounter++;
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synchronized (activeConnections) {activeConnections.add(this);}
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//System.out.println("*** DEBUG init httpc: " + activeConnections.size() + " connections online");
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this.ssl = ssl;
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this.initTime = Long.MAX_VALUE;
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this.lastIO = Long.MAX_VALUE;
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this.command = null;
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this.timeout = timeout;
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if ((theRemoteProxyConfig == null) ||
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(!theRemoteProxyConfig.useProxy())) {
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initN(
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server,
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vhost,
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port,
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timeout,
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ssl,
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incomingByteCountAccounting,
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outgoingByteCountAccounting
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);
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return;
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}
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if (port == -1) {
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port = (ssl)? 443 : 80;
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}
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String remoteProxyHost = theRemoteProxyConfig.getProxyHost();
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int remoteProxyPort = theRemoteProxyConfig.getProxyPort();
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this.initN(
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remoteProxyHost,
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vhost,
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remoteProxyPort,
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timeout,
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ssl,
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incomingByteCountAccounting,
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outgoingByteCountAccounting);
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this.remoteProxyUse = true;
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this.adressed_host = server;
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this.adressed_port = port;
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this.target_virtual_host = vhost;
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this.remoteProxyConfig = theRemoteProxyConfig;
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}
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/**
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* Convert the status of this class into an String object to output it.
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*/
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public String toString() {
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return (this.adressed_host == null) ? "Disconnected" : "Connected to " + this.adressed_host +
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((this.remoteProxyUse) ? " via " + adressed_host : "");
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}
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/**
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* Sets wether the content is allowed to be unzipped while getting?
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* FIXME: The name of this method seems misleading, if I read the usage of
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* this method correctly?
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*
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* @param status true, if the content is allowed to be decoded on the fly?
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*/
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public void setAllowContentEncoding(boolean status) {
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this.allowContentEncoding = status;
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}
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/**
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* Check wether the connection of this instance is closed.
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*
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* @return true if the connection is no longer open.
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*/
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public boolean isClosed() {
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if (this.socket == null) return true;
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return (!this.socket.isConnected()) || (this.socket.isClosed());
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}
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/**
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* Returns the given date in an HTTP-usable format.
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* (according to RFC822)
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*
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* @param date The Date-Object to be converted.
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* @return String with the date.
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*/
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public static String dateString(Date date) {
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if (date == null) return "";
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/*
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* This synchronized is needed because SimpleDateFormat
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* is not thread-safe.
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* See: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6231579
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*/
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synchronized(HTTPGMTFormatter) {
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return HTTPGMTFormatter.format(date);
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}
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}
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/**
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* Returns the current date as Date-Object.
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*
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* @return Date-object with the current time.
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*/
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public static Date nowDate() {
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return new Date();
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}
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public int hashCode() {
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// return a hash code so it is possible to store objects of httpc objects in a HashSet
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return this.hashIndex;
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}
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/**
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* Initialize the https-instance with the given data. Opens the sockets to
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* the remote server and creats input and output streams.
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*
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* @param server Hostname of the server to connect to.
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* @param port On which port should we connect.
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* @param timeout How long do we wait for answers?
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* @param ssl Wether we should use SSL.
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* @throws IOException
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*/
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private void initN(
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String server,
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String vhost,
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int port,
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int timeout,
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boolean ssl,
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String incomingByteCountAccounting,
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String outgoingByteCountAccounting
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) throws IOException {
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//serverLog.logDebug("HTTPC", handle + " initialized");
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this.remoteProxyUse = false;
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try {
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if (port == -1) {
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port = (ssl)? 443 : 80;
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}
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this.adressed_host = server;
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this.adressed_port = port;
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this.target_virtual_host = vhost;
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// creating a socket
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this.socket = (ssl)
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? theSSLSockFactory.createSocket()
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: new Socket();
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// creating a socket address
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InetSocketAddress address = null;
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if (!this.remoteProxyUse) {
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// only try to resolve the address if we are not using a proxy
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InetAddress hostip = serverDomains.dnsResolve(server);
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if (hostip == null) throw new UnknownHostException(server);
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address = new InetSocketAddress(hostip, port);
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} else {
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address = new InetSocketAddress(server,port);
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}
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// trying to establish a connection to the address
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this.initTime = System.currentTimeMillis();
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this.lastIO = System.currentTimeMillis();
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this.socket.setKeepAlive(false);
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// setting socket timeout and keep alive behaviour
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this.socket.setSoTimeout(timeout); // waiting time for read
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// get the connection
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this.socket.connect(address, timeout);
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this.socket.setSoTimeout(timeout); // waiting time for read
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if (incomingByteCountAccounting != null) {
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this.clientInputByteCount = new httpdByteCountInputStream(this.socket.getInputStream(),incomingByteCountAccounting);
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}
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if (outgoingByteCountAccounting != null) {
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this.clientOutputByteCount = new httpdByteCountOutputStream(this.socket.getOutputStream(),outgoingByteCountAccounting);
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}
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// getting input and output streams
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this.clientInput = new PushbackInputStream((this.clientInputByteCount!=null)?
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this.clientInputByteCount:
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this.socket.getInputStream());
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this.clientOutput = this.socket.getOutputStream();
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// if we reached this point, we should have a connection
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} catch (UnknownHostException e) {
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serverLog.logFine("HTTPC", "Couldn't find host " + server);
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close();
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throw new IOException("unknown host: " + server);
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} catch (IOException e) {
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// There was an error while connecting the socket, probably a SocketTimeoutException
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// we have to close the httpc, otherwise it would stay in activeConnections forever
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serverLog.logFine("HTTPC", "Couldn't open socket to " + this.adressed_host + ":" + this.adressed_port + ": " + e.getMessage());
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close();
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// TODO do we need to hand it over to the caller?
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throw e;
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}
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}
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public long getInputStreamByteCount() {
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return (this.clientInputByteCount == null)?0:this.clientInputByteCount.getCount();
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}
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public long getOutputStreamByteCount() {
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return (this.clientOutputByteCount == null)?0:this.clientOutputByteCount.getCount();
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}
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public static int checkIdleConnections() {
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// try to find and close all connections that did not find a target server and are idle waiting for a server socket
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httpc[] a = allConnections(); // put set into array to avoid ConcurrentModificationExceptions
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int tbd = 0;
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int c = 0;
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if (a.length > activeConnections_maximum) {
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// delete some connections; choose the oldest
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Arrays.sort(a, httpc.connectionTimeComparatorInstance);
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tbd = a.length - activeConnections_maximum;
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for (int i = 0; i < tbd; i++) {
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if (a[i] != null) {
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a[i].close();
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c++;
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}
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}
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}
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for (int i = tbd; i < a.length; i++) {
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httpc clientConnection = a[i];
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if (clientConnection != null) {
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if ((clientConnection.initTime != Long.MAX_VALUE) &&
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(clientConnection.initTime + Math.max(minimumTime_before_activeConnections_cleanup, clientConnection.timeout) < System.currentTimeMillis())) {
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// the time-out limit is reached. close the connection
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clientConnection.close();
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c++;
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}
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if ((clientConnection.lastIO != Long.MAX_VALUE) &&
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(clientConnection.lastIO + Math.max(minimumTime_before_idleConnections_cleanup, clientConnection.timeout) < System.currentTimeMillis())) {
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// the time-out limit is reached. close the connection
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clientConnection.close();
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c++;
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}
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}
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}
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return c;
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}
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public static int closeAllConnections() {
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httpc[] a = allConnections(); // put set into array to avoid ConcurrentModificationExceptions
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int c = 0;
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for (int i = 0; i < a.length; i++) {
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httpc clientConnection = a[i];
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if (clientConnection != null) {
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clientConnection.close();
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c++;
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}
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}
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return c;
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}
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public static httpc[] allConnections() {
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httpc[] a = null;
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synchronized (activeConnections) {
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a = new httpc[activeConnections.size()];
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Iterator<httpc> i = httpc.activeConnections.iterator();
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int c = 0;
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while (i.hasNext()) {
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a[c++] = i.next();
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}
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}
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return a;
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}
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public static class connectionTimeComparator implements Comparator<httpc> {
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public connectionTimeComparator() {
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super();
|
|
}
|
|
|
|
public int compare(httpc o1, httpc o2) {
|
|
long l1 = System.currentTimeMillis() - o1.lastIO;
|
|
long l2 = System.currentTimeMillis() - o2.lastIO;
|
|
if (l1 < l2) return 1;
|
|
if (l1 > l2) return -1;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
public void finalize() {
|
|
this.close();
|
|
}
|
|
|
|
public void close() {
|
|
synchronized (activeConnections) {activeConnections.remove(this);}
|
|
//System.out.println("*** DEBUG close httpc: " + activeConnections.size() + " connections online");
|
|
|
|
if (this.clientInput != null) {
|
|
try {this.clientInput.close();} catch (Exception e) {}
|
|
this.clientInput = null;
|
|
}
|
|
|
|
if (this.clientOutput != null) {
|
|
try {this.clientOutput.close();} catch (Exception e) {}
|
|
this.clientOutput = null;
|
|
}
|
|
|
|
if (this.socket != null) {
|
|
try {this.socket.close();} catch (Exception e) {}
|
|
this.socket = null;
|
|
}
|
|
|
|
if (this.clientInputByteCount != null) {
|
|
this.clientInputByteCount.finish();
|
|
this.clientInputByteCount = null;
|
|
}
|
|
|
|
if (this.clientOutputByteCount != null) {
|
|
this.clientOutputByteCount.finish();
|
|
this.clientOutputByteCount = null;
|
|
}
|
|
|
|
this.adressed_host = null;
|
|
this.target_virtual_host = null;
|
|
|
|
this.remoteProxyConfig = null;
|
|
this.requestPath = null;
|
|
}
|
|
|
|
/**
|
|
* This method invokes a call to the given server.
|
|
*
|
|
* @param method
|
|
* Which method should be called? GET, POST, HEAD or CONNECT
|
|
* @param path
|
|
* String with the path on the server to be get.
|
|
* @param header
|
|
* The prefilled header (if available) from the calling browser.
|
|
* @param zipped
|
|
* Is encoded content (gzip) allowed or not?
|
|
* @throws IOException
|
|
*/
|
|
private void send(String method, String path, httpHeader header, boolean zipped) throws IOException {
|
|
// scheduled request through request-response objects/threads
|
|
|
|
// check and correct path
|
|
if ((path == null) || (path.length() == 0)) path = "/";
|
|
|
|
// for debuggug:
|
|
this.requestPath = path;
|
|
|
|
// prepare header
|
|
if (header == null) header = new httpHeader();
|
|
|
|
// set some standard values
|
|
if (!(header.containsKey(httpHeader.ACCEPT)))
|
|
header.put(httpHeader.ACCEPT, "text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5");
|
|
if (!(header.containsKey(httpHeader.ACCEPT_CHARSET)))
|
|
header.put(httpHeader.ACCEPT_CHARSET, "ISO-8859-1,utf-8;q=0.7,*;q=0.7");
|
|
if (!(header.containsKey(httpHeader.ACCEPT_LANGUAGE)))
|
|
header.put(httpHeader.ACCEPT_LANGUAGE, "en-us,en;q=0.5");
|
|
if (!(header.containsKey(httpHeader.KEEP_ALIVE)))
|
|
header.put(httpHeader.KEEP_ALIVE, "300");
|
|
|
|
// set user agent. The user agent is only set if the value does not yet exists.
|
|
// this gives callers the opportunity, to change the user agent themselves, and
|
|
// it will not be changed.
|
|
if (!(header.containsKey(httpHeader.USER_AGENT))) header.put(httpHeader.USER_AGENT, userAgent);
|
|
|
|
// set the host attribute. This is in particular necessary, if we contact another proxy
|
|
// the host is mandatory, if we use HTTP/1.1
|
|
if (!(header.containsKey(httpHeader.HOST))) {
|
|
if (this.remoteProxyUse) {
|
|
header.put(httpHeader.HOST, this.adressed_host);
|
|
} else {
|
|
header.put(httpHeader.HOST, this.target_virtual_host);
|
|
}
|
|
}
|
|
|
|
if (this.remoteProxyUse) {
|
|
String remoteProxyUser = this.remoteProxyConfig.getProxyUser();
|
|
String remoteProxyPwd = this.remoteProxyConfig.getProxyPwd();
|
|
if ((remoteProxyUser!=null)&&(remoteProxyUser.length()>0)) {
|
|
header.put(httpHeader.PROXY_AUTHORIZATION,"Basic " + kelondroBase64Order.standardCoder.encodeString(remoteProxyUser + ":" + remoteProxyPwd));
|
|
}
|
|
}
|
|
|
|
if (!(header.containsKey(httpHeader.CONNECTION))) {
|
|
header.put(httpHeader.CONNECTION, "close");
|
|
}
|
|
|
|
// stimulate zipping or not
|
|
// we can unzip, and we will return it always as unzipped, unless not wanted
|
|
if (header.containsKey(httpHeader.ACCEPT_ENCODING)) {
|
|
String encoding = (String) header.get(httpHeader.ACCEPT_ENCODING);
|
|
if (zipped) {
|
|
if (encoding.indexOf("gzip") < 0) {
|
|
// add the gzip encoding
|
|
//System.out.println("!!! adding gzip encoding");
|
|
header.put(httpHeader.ACCEPT_ENCODING, "gzip,deflate" + ((encoding.length() == 0) ? "" : (";" + encoding)));
|
|
}
|
|
} else {
|
|
int pos = encoding.indexOf("gzip");
|
|
if (pos >= 0) {
|
|
// remove the gzip encoding
|
|
//System.out.println("!!! removing gzip encoding");
|
|
// ex: "gzip,deflate" => pos == 0, but we need to remove the "," as well => substring(pos+5),
|
|
// ex: "gzip" => pos == 0, but substring(pos+5) would exceed boundaries
|
|
String enc = encoding.substring(0, pos) + (encoding.length() > (pos+5) ? encoding.substring(pos + 5) : "");
|
|
header.put(httpHeader.ACCEPT_ENCODING, enc);
|
|
}
|
|
}
|
|
} else {
|
|
if (zipped) header.put(httpHeader.ACCEPT_ENCODING, "gzip,deflate");
|
|
}
|
|
|
|
//header = new httpHeader(); header.put("Host", this.host); // debug
|
|
|
|
StringBuffer sb = new StringBuffer();
|
|
// send request
|
|
if ((this.remoteProxyUse) && (!(method.equals(httpHeader.METHOD_CONNECT))))
|
|
path = ((this.adressed_port == 443) ? "https://" : "http://") + this.adressed_host + ":" + this.adressed_port + path;
|
|
sb.append(method + " " + path + " HTTP/1.0" + serverCore.CRLF_STRING); // TODO if set to HTTP/1.1, servers give time-outs?
|
|
|
|
// send header
|
|
//System.out.println("***HEADER for path " + path + ": PROXY TO SERVER = " + header.toString()); // DEBUG
|
|
Iterator<String> i = header.keySet().iterator();
|
|
String key;
|
|
int count;
|
|
char tag;
|
|
while (i.hasNext()) {
|
|
key = i.next();
|
|
tag = key.charAt(0);
|
|
if ((tag != '*') && (tag != '#')) {
|
|
count = header.keyCount(key);
|
|
for (int j = 0; j < count; j++) {
|
|
sb.append(key + ": " + ((String) header.getSingle(key, j)).trim() + serverCore.CRLF_STRING);
|
|
}
|
|
//System.out.println("#" + key + ": " + value);
|
|
}
|
|
}
|
|
|
|
// add terminating line
|
|
sb.append(serverCore.CRLF_STRING);
|
|
serverCore.send(this.clientOutput, sb.toString());
|
|
this.clientOutput.flush();
|
|
|
|
// this is the place where www.stern.de refuses to answer ..???
|
|
}
|
|
|
|
/**
|
|
* This method GETs a page from the server.
|
|
*
|
|
* @param path The path to the page which should be GET.
|
|
* @param requestHeader Prefilled httpHeader.
|
|
* @return Instance of response with the content.
|
|
* @throws IOException
|
|
*/
|
|
public response GET(String path, httpHeader requestHeader) throws IOException {
|
|
//serverLog.logDebug("HTTPC", handle + " requested GET '" + path + "', time = " + (System.currentTimeMillis() - handle));
|
|
this.command = "GET " + path;
|
|
try {
|
|
boolean zipped = (!this.allowContentEncoding) ? false : httpd.shallTransportZipped(path);
|
|
send(httpHeader.METHOD_GET, path, requestHeader, zipped);
|
|
response r = new response(zipped);
|
|
//serverLog.logDebug("HTTPC", handle + " returned GET '" + path + "', time = " + (System.currentTimeMillis() - handle));
|
|
return r;
|
|
} catch (Exception e) {
|
|
if (e.getMessage().indexOf("heap space") > 0) {
|
|
e.printStackTrace();
|
|
}
|
|
throw new IOException(e.getMessage());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* This method gets only the header of a page.
|
|
*
|
|
* @param path The path to the page whose header should be get.
|
|
* @param requestHeader Prefilled httpHeader.
|
|
* @return Instance of response with the content.
|
|
* @throws IOException
|
|
*/
|
|
public response HEAD(String path, httpHeader requestHeader) throws IOException {
|
|
this.command = "HEAD " + path;
|
|
try {
|
|
send(httpHeader.METHOD_HEAD, path, requestHeader, false);
|
|
return new response(false);
|
|
// in this case the caller should not read the response body,
|
|
// since there is none...
|
|
} catch (SocketException e) {
|
|
throw new IOException(e.getMessage());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* This method POSTs some data to a page.
|
|
*
|
|
* @param path The path to the page which the post is sent to.
|
|
* @param requestHeader Prefilled httpHeader.
|
|
* @param ins InputStream with the data to be posted to the server.
|
|
* @return Instance of response with the content.
|
|
* @throws IOException
|
|
*/
|
|
public response POST(String path, httpHeader requestHeader, InputStream ins) throws IOException {
|
|
this.command = "POST " + path;
|
|
try {
|
|
send(httpHeader.METHOD_POST, path, requestHeader, false);
|
|
// if there is a body to the call, we would have a CONTENT-LENGTH tag in the requestHeader
|
|
String cl = (String) requestHeader.get(httpHeader.CONTENT_LENGTH);
|
|
int len, c;
|
|
byte[] buffer = new byte[512];
|
|
if (cl != null) {
|
|
len = Integer.parseInt(cl);
|
|
// transfer len bytes from ins to the server
|
|
while ((len > 0) && ((c = ins.read(buffer)) >= 0)) {
|
|
this.clientOutput.write(buffer, 0, c);
|
|
len -= c;
|
|
}
|
|
} else {
|
|
len = 0;
|
|
while ((c = ins.read(buffer)) >= 0) {
|
|
this.clientOutput.write(buffer, 0, c);
|
|
len += c;
|
|
}
|
|
|
|
// TODO: we can not set the header here. This ist too late
|
|
requestHeader.put(httpHeader.CONTENT_LENGTH, Integer.toString(len));
|
|
}
|
|
this.clientOutput.flush();
|
|
return new response(false);
|
|
} catch (SocketException e) {
|
|
throw new IOException(e.getMessage());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Call the server with the CONNECT-method.
|
|
* This is used to establish https-connections through a https-proxy
|
|
*
|
|
* @param host To which host should a connection be made?
|
|
* @param port Which port should be connected?
|
|
* @param requestHeader prefilled httpHeader.
|
|
* @return Instance of response with the content.
|
|
*/
|
|
|
|
public response CONNECT(String remotehost, int remoteport, httpHeader requestHeader) throws IOException {
|
|
this.command = "CONNECT " + remotehost + ":" + remoteport;
|
|
try {
|
|
send(httpHeader.METHOD_CONNECT, remotehost + ":" + remoteport, requestHeader, false);
|
|
return new response(false);
|
|
} catch (SocketException e) {
|
|
throw new IOException(e.getMessage());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* This method sends several files at once via a POST request. Only those
|
|
* files in the Hashtable files are written whose names are contained in
|
|
* args.
|
|
*
|
|
* @param path The path to the page which the post is sent to.
|
|
* @param requestHeader Prefilled httpHeader.
|
|
* @param args serverObjects with the names of the files to send.
|
|
* @param files HashMap with the names of the files as key and the content
|
|
* of the files as value.
|
|
* @return Instance of response with the content.
|
|
* @throws IOException
|
|
*/
|
|
public response POST(String path, httpHeader requestHeader, serverObjects args, HashMap<String, byte[]> files) throws IOException {
|
|
// make shure, the header has a boundary information like
|
|
// CONTENT-TYPE=multipart/form-data; boundary=----------0xKhTmLbOuNdArY
|
|
if (requestHeader == null) requestHeader = new httpHeader();
|
|
String boundary = (String) requestHeader.get(httpHeader.CONTENT_TYPE);
|
|
if (boundary == null) {
|
|
// create a boundary
|
|
boundary = "multipart/form-data; boundary=----------" + java.lang.System.currentTimeMillis();
|
|
requestHeader.put(httpHeader.CONTENT_TYPE, boundary);
|
|
}
|
|
// extract the boundary string
|
|
int pos = boundary.toUpperCase().indexOf("BOUNDARY=");
|
|
if (pos < 0) {
|
|
// again, create a boundary
|
|
boundary = "multipart/form-data; boundary=----------" + java.lang.System.currentTimeMillis();
|
|
requestHeader.put(httpHeader.CONTENT_TYPE, boundary);
|
|
pos = boundary.indexOf("boundary=");
|
|
}
|
|
boundary = "--" + boundary.substring(pos + "boundary=".length());
|
|
|
|
boolean zipContent = args.containsKey(GZIP_POST_BODY);
|
|
args.remove(GZIP_POST_BODY);
|
|
|
|
OutputStream out;
|
|
GZIPOutputStream zippedOut;
|
|
serverByteBuffer buf = new serverByteBuffer();
|
|
if (zipContent) {
|
|
zippedOut = new GZIPOutputStream(buf);
|
|
out = zippedOut;
|
|
} else {
|
|
out = buf;
|
|
}
|
|
|
|
// in contrast to GET and HEAD, this method also transports a message body
|
|
// the body consists of repeated boundaries and values in between
|
|
if (args.size() != 0) {
|
|
// we have values for the POST, start with one boundary
|
|
String key, value;
|
|
Iterator<String> e = args.keySet().iterator();
|
|
while (e.hasNext()) {
|
|
// start with a boundary
|
|
out.write(boundary.getBytes("UTF-8"));
|
|
out.write(serverCore.CRLF);
|
|
// write value
|
|
key = e.next();
|
|
value = args.get(key, "");
|
|
if ((files != null) && (files.containsKey(key))) {
|
|
// we are about to write a file
|
|
out.write(("Content-Disposition: form-data; name=" + '"' + key + '"' + "; filename=" + '"' + value + '"').getBytes("UTF-8"));
|
|
out.write(serverCore.CRLF);
|
|
out.write(serverCore.CRLF);
|
|
out.write((byte[]) files.get(key));
|
|
out.write(serverCore.CRLF);
|
|
} else {
|
|
// write a single value
|
|
out.write(("Content-Disposition: form-data; name=" + '"' + key + '"').getBytes("UTF-8"));
|
|
out.write(serverCore.CRLF);
|
|
out.write(serverCore.CRLF);
|
|
out.write(value.getBytes("UTF-8"));
|
|
out.write(serverCore.CRLF);
|
|
}
|
|
}
|
|
// finish with a boundary
|
|
out.write(boundary.getBytes("UTF-8"));
|
|
out.write(serverCore.CRLF);
|
|
}
|
|
// create body array
|
|
out.close();
|
|
byte[] body = buf.getBytes();
|
|
buf = null; out = null;
|
|
|
|
//System.out.println("DEBUG: PUT BODY=" + new String(body));
|
|
if (zipContent) {
|
|
requestHeader.put(httpHeader.CONTENT_ENCODING, "gzip");
|
|
|
|
//TODO: should we also set the content length here?
|
|
} else {
|
|
// size of that body
|
|
requestHeader.put(httpHeader.CONTENT_LENGTH, Integer.toString(body.length));
|
|
}
|
|
|
|
// send the header
|
|
send(httpHeader.METHOD_POST, path, requestHeader, false);
|
|
|
|
// send the body
|
|
serverCore.send(this.clientOutput, body);
|
|
|
|
return new response(false);
|
|
}
|
|
|
|
public static byte[] singleGET(
|
|
String realhost,
|
|
String virtualhost,
|
|
int port,
|
|
String path,
|
|
int timeout,
|
|
String user,
|
|
String password,
|
|
boolean ssl,
|
|
httpRemoteProxyConfig theRemoteProxyConfig,
|
|
httpHeader requestHeader,
|
|
File download
|
|
) throws IOException {
|
|
// if download == null, the get result is stored to a byte[] and returned,
|
|
// otherwise the get is streamed to the file and null is returned
|
|
if (requestHeader == null) requestHeader = new httpHeader();
|
|
|
|
// setting host authorization header
|
|
if ((user != null) && (password != null) && (user.length() != 0)) {
|
|
requestHeader.put(httpHeader.AUTHORIZATION, kelondroBase64Order.standardCoder.encodeString(user + ":" + password));
|
|
}
|
|
|
|
httpc con = new httpc(realhost, virtualhost, port, timeout, ssl, theRemoteProxyConfig, null, null);
|
|
|
|
httpc.response res = con.GET(path, requestHeader);
|
|
if (res.status.startsWith("2")) {
|
|
if (download == null) {
|
|
// stream to byte[]
|
|
serverByteBuffer sbb = new serverByteBuffer();
|
|
res.writeContent(sbb, null);
|
|
con.close();
|
|
return sbb.getBytes();
|
|
} else {
|
|
// stream to file and return null
|
|
res.writeContent(null, download);
|
|
con.close();
|
|
return null;
|
|
}
|
|
}
|
|
return res.status.getBytes();
|
|
}
|
|
|
|
public static byte[] singleGET(
|
|
yacyURL u,
|
|
String vhost,
|
|
int timeout,
|
|
String user,
|
|
String password,
|
|
httpRemoteProxyConfig theRemoteProxyConfig,
|
|
File download
|
|
) throws IOException {
|
|
int port = u.getPort();
|
|
boolean ssl = u.getProtocol().equals("https");
|
|
if (port < 0) port = (ssl) ? 443: 80;
|
|
String path = u.getPath();
|
|
String query = u.getQuery();
|
|
if ((query != null) && (query.length() > 0)) path = path + "?" + query;
|
|
return singleGET(u.getHost(), vhost, port, path, timeout, user, password, ssl, theRemoteProxyConfig, null, download);
|
|
}
|
|
|
|
public static byte[] singlePOST(
|
|
String realhost,
|
|
String virtualhost,
|
|
int port,
|
|
String path,
|
|
int timeout,
|
|
String user,
|
|
String password,
|
|
boolean ssl,
|
|
httpRemoteProxyConfig theRemoteProxyConfig,
|
|
httpHeader requestHeader,
|
|
serverObjects props,
|
|
HashMap<String, byte[]> files
|
|
) throws IOException {
|
|
|
|
if (requestHeader == null) requestHeader = new httpHeader();
|
|
if ((user != null) && (password != null) && (user.length() != 0)) {
|
|
requestHeader.put(httpHeader.AUTHORIZATION, kelondroBase64Order.standardCoder.encodeString(user + ":" + password));
|
|
}
|
|
|
|
httpc con = new httpc(realhost, virtualhost, port, timeout, ssl, theRemoteProxyConfig, null, null);
|
|
httpc.response res = con.POST(path, requestHeader, props, files);
|
|
|
|
//System.out.println("response=" + res.toString());
|
|
if (!(res.status.startsWith("2"))) {
|
|
byte[] status = res.status.getBytes();
|
|
con.close();
|
|
return status;
|
|
}
|
|
|
|
// read connection body and return body
|
|
serverByteBuffer sbb = new serverByteBuffer();
|
|
res.writeContent(sbb, null);
|
|
if ((res.responseHeader.contentLength() > 0) && (res.responseHeader.contentLength() != sbb.length()))
|
|
throw new IOException("content length and loaded resource length from http://" + realhost + ":" + port + path + " does not match. HEADER.Content-Length = " + res.responseHeader.contentLength() + ", resource.length =" + sbb.length());
|
|
con.close();
|
|
return sbb.getBytes();
|
|
}
|
|
|
|
public static byte[] singlePOST(
|
|
yacyURL u,
|
|
String vhost,
|
|
int timeout,
|
|
String user,
|
|
String password,
|
|
httpRemoteProxyConfig theRemoteProxyConfig,
|
|
serverObjects props,
|
|
HashMap<String, byte[]> files
|
|
) throws IOException {
|
|
int port = u.getPort();
|
|
boolean ssl = u.getProtocol().equals("https");
|
|
if (port < 0) port = (ssl) ? 443 : 80;
|
|
String path = u.getPath();
|
|
String query = u.getQuery();
|
|
if ((query != null) && (query.length() > 0)) path = path + "?" + query;
|
|
return singlePOST(
|
|
u.getHost(),
|
|
vhost,
|
|
port,
|
|
path,
|
|
timeout,
|
|
user,
|
|
password,
|
|
ssl,
|
|
theRemoteProxyConfig,
|
|
null,
|
|
props,
|
|
files
|
|
);
|
|
}
|
|
|
|
public static byte[] wget(
|
|
yacyURL url,
|
|
String vhost,
|
|
int timeout,
|
|
String user,
|
|
String password,
|
|
httpRemoteProxyConfig theRemoteProxyConfig,
|
|
httpHeader requestHeader,
|
|
File download
|
|
) throws IOException {
|
|
|
|
int port = url.getPort();
|
|
boolean ssl = url.getProtocol().equals("https");
|
|
if (port < 0) port = (ssl) ? 443: 80;
|
|
String path = url.getPath();
|
|
String query = url.getQuery();
|
|
if ((query != null) && (query.length() > 0)) path = path + "?" + query;
|
|
|
|
// splitting of the byte array into lines
|
|
byte[] a = singleGET(
|
|
url.getHost(),
|
|
vhost,
|
|
port,
|
|
path,
|
|
timeout,
|
|
user,
|
|
password,
|
|
ssl,
|
|
theRemoteProxyConfig,
|
|
requestHeader,
|
|
download
|
|
);
|
|
|
|
if (a == null) return null;
|
|
|
|
// support of gzipped data (requested by roland)
|
|
a = serverFileUtils.uncompressGZipArray(a);
|
|
|
|
// return result
|
|
return a;
|
|
}
|
|
|
|
public static Map<String, String> loadHashMap(yacyURL url, httpRemoteProxyConfig proxy) {
|
|
try {
|
|
// should we use the proxy?
|
|
boolean useProxy = (proxy != null) &&
|
|
(proxy.useProxy()) &&
|
|
(proxy.useProxy4Yacy());
|
|
|
|
// sending request
|
|
final HashMap<String, String> result = nxTools.table(
|
|
httpc.wget(
|
|
url,
|
|
url.getHost(),
|
|
8000,
|
|
null,
|
|
null,
|
|
(useProxy) ? proxy : null,
|
|
null,
|
|
null
|
|
)
|
|
, "UTF-8");
|
|
|
|
if (result == null) return new HashMap<String, String>();
|
|
return result;
|
|
} catch (Exception e) {
|
|
return new HashMap<String, String>();
|
|
}
|
|
}
|
|
|
|
public static httpHeader whead(
|
|
yacyURL url,
|
|
String vhost,
|
|
int timeout,
|
|
String user,
|
|
String password,
|
|
httpRemoteProxyConfig theRemoteProxyConfig
|
|
) throws IOException {
|
|
return whead(url,vhost,timeout,user,password,theRemoteProxyConfig,null);
|
|
}
|
|
|
|
public static httpHeader whead(
|
|
yacyURL url,
|
|
String vhost,
|
|
int timeout,
|
|
String user,
|
|
String password,
|
|
httpRemoteProxyConfig theRemoteProxyConfig,
|
|
httpHeader requestHeader
|
|
) throws IOException {
|
|
// generate request header
|
|
if (requestHeader == null) requestHeader = new httpHeader();
|
|
if ((user != null) && (password != null) && (user.length() != 0)) {
|
|
requestHeader.put(httpHeader.AUTHORIZATION, kelondroBase64Order.standardCoder.encodeString(user + ":" + password));
|
|
}
|
|
// parse query
|
|
|
|
int port = url.getPort();
|
|
boolean ssl = url.getProtocol().equals("https");
|
|
if (port < 0) port = (ssl) ? 443 : 80;
|
|
String path = url.getPath();
|
|
String query = url.getQuery();
|
|
if ((query != null) && (query.length() > 0)) path = path + "?" + query;
|
|
String realhost = url.getHost();
|
|
|
|
// start connection
|
|
httpc con = new httpc(realhost, vhost, port, timeout, ssl, theRemoteProxyConfig, null, null);
|
|
httpc.response res = con.HEAD(path, requestHeader);
|
|
httpHeader h = res.responseHeader;
|
|
con.close();
|
|
return h;
|
|
}
|
|
|
|
public static byte[] wput(
|
|
yacyURL url,
|
|
String vhost,
|
|
int timeout,
|
|
String user,
|
|
String password,
|
|
httpRemoteProxyConfig theRemoteProxyConfig,
|
|
serverObjects props,
|
|
HashMap<String, byte[]> files
|
|
) throws IOException {
|
|
// splitting of the byte array into lines
|
|
byte[] a = singlePOST(
|
|
url,
|
|
vhost,
|
|
timeout,
|
|
user,
|
|
password,
|
|
theRemoteProxyConfig,
|
|
props,
|
|
files
|
|
);
|
|
|
|
if (a == null) return null;
|
|
|
|
// support of gzipped data
|
|
a = serverFileUtils.uncompressGZipArray(a);
|
|
|
|
// return result
|
|
return a;
|
|
|
|
//System.out.println("wput-out=" + new String(a));
|
|
//return nxTools.strings(a);
|
|
}
|
|
|
|
public static void main(String[] args) {
|
|
System.out.println("ANOMIC.DE HTTP CLIENT v" + vDATE);
|
|
String url = args[0];
|
|
if (!(url.toUpperCase().startsWith("HTTP://"))) url = "http://" + url;
|
|
ArrayList<String> text = new ArrayList<String>();
|
|
if (args.length == 4) {
|
|
int timeout = Integer.parseInt(args[1]);
|
|
String proxyHost = args[2];
|
|
int proxyPort = Integer.parseInt(args[3]);
|
|
|
|
httpRemoteProxyConfig theRemoteProxyConfig = httpRemoteProxyConfig.init(proxyHost,proxyPort);
|
|
try {
|
|
yacyURL u = new yacyURL(url, null);
|
|
text = nxTools.strings(wget(u, u.getHost(), timeout, null, null, theRemoteProxyConfig, null, null));
|
|
} catch (MalformedURLException e) {
|
|
System.out.println("The url '" + url + "' is wrong.");
|
|
} catch (IOException e) {
|
|
System.out.println("Error loading url '" + url + "': " + e.getMessage());
|
|
}
|
|
} /*else {
|
|
serverObjects post = new serverObjects();
|
|
int p;
|
|
for (int i = 1; i < args.length; i++) {
|
|
p = args[i].indexOf("=");
|
|
if (p > 0) post.put(args[i].substring(0, p), args[i].substring(p + 1));
|
|
}
|
|
text = wput(url, post);
|
|
}*/
|
|
Iterator<String> i = text.listIterator();
|
|
while (i.hasNext()) System.out.println(i.next());
|
|
}
|
|
|
|
/**
|
|
* Inner Class to get the response of an http-request and parse it.
|
|
*/
|
|
public final class response {
|
|
// Response-Header = Date | Pragma | Allow | Content-Encoding | Content-Length | Content-Type |
|
|
// Expires | Last-Modified | HTTP-header
|
|
/*
|
|
Status-Line = HTTP-Version SP Status-Code SP Reason-Phrase CRLF
|
|
1xx: Informational - Not used, but reserved for future use
|
|
2xx: Success - The action was successfully received, understood, and accepted.
|
|
3xx: Redirection - Further action must be taken in order to complete the request
|
|
4xx: Client Error - The request contains bad syntax or cannot be fulfilled
|
|
5xx: Server Error - The server failed to fulfill an apparently valid request
|
|
*/
|
|
|
|
// header information
|
|
public httpHeader responseHeader = null;
|
|
public String httpVer = "HTTP/0.9";
|
|
public String status; // the success/failure response string starting with status-code
|
|
public int statusCode = 503;
|
|
public String statusText = "internal error";
|
|
private boolean gzip; // for gunzipping on-the-fly
|
|
private long gzippedLength = -1; // reported content length if content-encoding is set
|
|
|
|
/**
|
|
* Constructor for this class. Reads in the content for the given outer
|
|
* instance and parses it.
|
|
*
|
|
* @param zipped true, if the content of this response is gzipped.
|
|
* @throws IOException
|
|
*/
|
|
public response(boolean zipped) throws IOException {
|
|
|
|
// lets start with worst-case attributes as set-up
|
|
this.responseHeader = new httpHeader(reverseMappingCache);
|
|
this.statusCode = 503;
|
|
this.statusText = "internal httpc error";
|
|
this.status = Integer.toString(this.statusCode) + " " + this.statusText;
|
|
this.gzip = false;
|
|
|
|
// check connection status
|
|
if (httpc.this.clientInput == null) {
|
|
// the server has meanwhile disconnected
|
|
this.statusCode = 503;
|
|
this.statusText = "lost connection to server";
|
|
this.status = Integer.toString(this.statusCode) + " " + this.statusText;
|
|
return; // in bad mood
|
|
}
|
|
|
|
// reads in the http header, right now, right here
|
|
byte[] b = serverCore.receive(httpc.this.clientInput, terminalMaxLength, true);
|
|
if (b == null) {
|
|
// the server has meanwhile disconnected
|
|
this.statusCode = 503;
|
|
this.statusText = "server has closed connection";
|
|
this.status = Integer.toString(this.statusCode) + " " + this.statusText;
|
|
return; // in bad mood
|
|
}
|
|
|
|
// parsing the response status line
|
|
String buffer = new String(b);
|
|
Object[] responseInfo = httpHeader.parseResponseLine(buffer);
|
|
this.httpVer = (String) responseInfo[0];
|
|
this.statusCode = ((Integer)responseInfo[1]).intValue();
|
|
this.statusText = (String) responseInfo[2];
|
|
this.status = this.statusCode + " " + this.statusText;
|
|
|
|
if ((this.statusCode==500)&&(this.statusText.equals("status line parse error"))) {
|
|
// flush in anything that comes without parsing
|
|
while ((b != null) && (b.length != 0)) b = serverCore.receive(httpc.this.clientInput, terminalMaxLength, true);
|
|
return; // in bad mood
|
|
}
|
|
|
|
// check validity
|
|
if (this.statusCode == 400) {
|
|
// bad request
|
|
// flush in anything that comes without parsing
|
|
while ((b = serverCore.receive(httpc.this.clientInput, terminalMaxLength, true)).length != 0) {}
|
|
return; // in bad mood
|
|
}
|
|
|
|
// at this point we should have a valid response. read in the header properties
|
|
String key = "";
|
|
while ((b = serverCore.receive(httpc.this.clientInput, terminalMaxLength, true)) != null) {
|
|
if (b.length == 0) break;
|
|
buffer = new String(b);
|
|
buffer=buffer.trim();
|
|
//System.out.println("#H#" + buffer); // debug
|
|
// RFC2616 4.2: headers beginning with LWS are appended to the previous line
|
|
if (b[0] == serverCore.SP || b[0] == serverCore.HT) {
|
|
// use old entry
|
|
if (key.length() == 0) throw new IOException("header corrupted - input error");
|
|
// attach new line
|
|
if (!(this.responseHeader.containsKey(key))) throw new IOException("header corrupted - internal error");
|
|
this.responseHeader.put(key, (String) this.responseHeader.get(key) + " " + buffer.trim());
|
|
} else {
|
|
// create new entry
|
|
int p = buffer.indexOf(":");
|
|
if (p > 0) {
|
|
this.responseHeader.add(buffer.substring(0, p).trim(), buffer.substring(p + 1).trim());
|
|
} else {
|
|
serverLog.logSevere("HTTPC", "RESPONSE PARSE ERROR: HOST='" + httpc.this.adressed_host + "', PATH='" + httpc.this.requestPath + "', STATUS='" + this.status + "'");
|
|
serverLog.logSevere("HTTPC", "..............BUFFER: " + buffer);
|
|
throw new IOException(this.status);
|
|
}
|
|
}
|
|
}
|
|
// finished with reading header
|
|
|
|
// we will now manipulate the header if the content is gzip encoded, because
|
|
// reading the content with "writeContent" will gunzip on-the-fly
|
|
this.gzip = ((zipped) && (this.responseHeader.gzip()));
|
|
|
|
if (this.gzip) {
|
|
if (this.responseHeader.containsKey(httpHeader.CONTENT_LENGTH)) {
|
|
this.gzippedLength = this.responseHeader.contentLength();
|
|
}
|
|
this.responseHeader.remove(httpHeader.CONTENT_ENCODING); // we fake that we don't have encoding, since what comes out does not have gzip and we also don't know what was encoded
|
|
this.responseHeader.remove(httpHeader.CONTENT_LENGTH); // we cannot use the length during gunzippig yet; still we can hope that it works
|
|
}
|
|
}
|
|
|
|
public long getGzippedLength() {
|
|
return this.gzippedLength;
|
|
}
|
|
|
|
public boolean isGzipped() {
|
|
return this.gzip;
|
|
}
|
|
|
|
/**
|
|
* Converts an instance of this class into a readable string.
|
|
*
|
|
* @return String with some information about this instance.
|
|
*/
|
|
public String toString() {
|
|
StringBuffer toStringBuffer = new StringBuffer();
|
|
toStringBuffer.append((this.status == null) ? "Status: Unknown" : "Status: " + this.status)
|
|
.append(" | Headers: ")
|
|
.append((this.responseHeader == null) ? "none" : this.responseHeader.toString());
|
|
return new String(toStringBuffer);
|
|
}
|
|
|
|
/**
|
|
* Returns wether this request was successful or not. Stati beginning
|
|
* with 2 or 3 are considered successful.
|
|
*
|
|
* @return True, if the request was successful.
|
|
*/
|
|
public boolean success() {
|
|
return ((this.status.charAt(0) == '2') || (this.status.charAt(0) == '3'));
|
|
}
|
|
|
|
/**
|
|
* If the response was encoded using <code>Content-Encoding: gzip</code>
|
|
* a {@link GZIPInputStream} is returned. If the <code>Content-Length</code> header was set,
|
|
* a {@link httpContentLengthInputStream} is returned which returns <code>-1</code> if the end of the
|
|
* response body was reached.
|
|
*
|
|
* @return a {@link InputStream} to read the response body
|
|
* @throws IOException
|
|
*/
|
|
public InputStream getContentInputStream() throws IOException {
|
|
if (this.gzip) {
|
|
// use a gzip input stream for Content-Encoding: gzip
|
|
return new GZIPInputStream(httpc.this.clientInput);
|
|
} else if (this.responseHeader.contentLength() != -1) {
|
|
// use a httpContentLengthInputStream to read until the end of the response body is reached
|
|
return new httpContentLengthInputStream(httpc.this.clientInput, this.responseHeader.contentLength());
|
|
}
|
|
// no Content-Lenght was set. In this case we can read until EOF
|
|
return httpc.this.clientInput;
|
|
}
|
|
|
|
/**
|
|
* This method outputs the found content into an byte-array and
|
|
* additionally outputs it to procOS.
|
|
*
|
|
* @param procOS
|
|
* @return the found content
|
|
* @throws IOException
|
|
*/
|
|
public byte[] writeContent(Object procOS, boolean returnByteArray) throws IOException {
|
|
serverByteBuffer sbb = null;
|
|
|
|
if (returnByteArray) {
|
|
int contentLength = (int) this.responseHeader.contentLength();
|
|
sbb = new serverByteBuffer((contentLength==-1)?8192:contentLength);
|
|
}
|
|
|
|
if (procOS instanceof OutputStream) {
|
|
writeX(this.getContentInputStream(), (OutputStream) procOS, sbb);
|
|
} else if (procOS instanceof Writer) {
|
|
String charSet = this.responseHeader.getCharacterEncoding();
|
|
if (charSet == null) charSet = httpHeader.DEFAULT_CHARSET;
|
|
writeX(this.getContentInputStream(), charSet, (Writer) procOS, sbb, charSet);
|
|
} else {
|
|
throw new IllegalArgumentException("Invalid procOS object type '" + procOS.getClass().getName() + "'");
|
|
}
|
|
|
|
return (sbb==null)?null:sbb.getBytes();
|
|
}
|
|
|
|
/**
|
|
* This method writes the input stream to either another output stream
|
|
* or a file or both.
|
|
* In case that an exception occurrs, the stream reading is just teminated
|
|
* and content received so far is returned
|
|
*
|
|
* @param procOS
|
|
* @param file
|
|
*/
|
|
public void writeContent(Object procOS, File file) {
|
|
// this writes the input stream to either another output stream or
|
|
// a file or both.
|
|
FileOutputStream bufferOS = null;
|
|
if (file != null) try {
|
|
bufferOS = new FileOutputStream(file);
|
|
} catch (FileNotFoundException e) {
|
|
file = null;
|
|
}
|
|
try {
|
|
InputStream is = this.getContentInputStream();
|
|
if (procOS == null) {
|
|
writeX(is, null, bufferOS);
|
|
} else if (procOS instanceof OutputStream) {
|
|
writeX(is, (OutputStream) procOS, bufferOS);
|
|
//writeContentX(httpc.this.clientInput, this.gzip, this.responseHeader.contentLength(), procOS, bufferOS);
|
|
} else if (procOS instanceof Writer) {
|
|
String charSet = this.responseHeader.getCharacterEncoding();
|
|
if (charSet == null) charSet = httpHeader.DEFAULT_CHARSET;
|
|
writeX(is, charSet, (Writer) procOS, bufferOS, charSet);
|
|
} else {
|
|
throw new IllegalArgumentException("Invalid procOS object type '" + procOS.getClass().getName() + "'");
|
|
}
|
|
} catch (IOException e) {
|
|
e.printStackTrace();
|
|
}
|
|
|
|
if (bufferOS != null) {
|
|
try {
|
|
bufferOS.flush();
|
|
bufferOS.close();
|
|
} catch (IOException e) {
|
|
e.printStackTrace();
|
|
}
|
|
if ((file != null) && (file.length() == 0)) file.delete();
|
|
}
|
|
}
|
|
|
|
|
|
public void writeX(InputStream source, OutputStream procOS, OutputStream bufferOS) {
|
|
byte[] buffer = new byte[2048];
|
|
int l, c = 0;
|
|
lastIO = System.currentTimeMillis();
|
|
|
|
io: while (true) try {
|
|
l = source.read(buffer, 0, buffer.length);
|
|
if (l < 0) break;
|
|
if (l == 0) try {
|
|
if (System.currentTimeMillis() - lastIO > 30000) break;
|
|
this.wait(300);
|
|
continue io;
|
|
} catch (InterruptedException e) {
|
|
e.printStackTrace();
|
|
} // may happen without EOF
|
|
lastIO = System.currentTimeMillis();
|
|
c += l;
|
|
if (procOS != null) procOS.write(buffer, 0, l);
|
|
if (bufferOS != null) bufferOS.write(buffer, 0, l);
|
|
} catch (IOException e) {
|
|
System.out.println("*** DEBUG: writeX/IOStream terminated with IOException, processed " + c + " bytes. cause: " + e.getMessage());
|
|
e.printStackTrace();
|
|
break;
|
|
}
|
|
|
|
// flush the streams
|
|
if (procOS != null) try { procOS.flush(); } catch (IOException e) {}
|
|
if (bufferOS != null) try { bufferOS.flush(); } catch (IOException e) {}
|
|
buffer = null;
|
|
}
|
|
|
|
public void writeX(InputStream source, String inputCharset, Writer procOS, OutputStream bufferOS, String outputCharset) {
|
|
try {
|
|
InputStreamReader sourceReader = new InputStreamReader(source, inputCharset);
|
|
OutputStreamWriter bufferOSWriter = (bufferOS == null) ? null : new OutputStreamWriter(bufferOS,outputCharset);
|
|
char[] buffer = new char[2048];
|
|
int l, c= 0;
|
|
lastIO = System.currentTimeMillis();
|
|
|
|
io: while (true) try{
|
|
l = sourceReader.read(buffer, 0, buffer.length);
|
|
if (l < 0) break;
|
|
if (l == 0) try {
|
|
if (System.currentTimeMillis() - lastIO > 30000) break;
|
|
this.wait(300);
|
|
continue io;
|
|
} catch (InterruptedException e) {
|
|
e.printStackTrace();
|
|
} // may happen without EOF
|
|
lastIO = System.currentTimeMillis();
|
|
c += l;
|
|
if (procOS != null) procOS.write(buffer, 0, l);
|
|
if (bufferOSWriter != null) bufferOSWriter.write(buffer, 0, l);
|
|
} catch (IOException e) {
|
|
System.out.println("*** DEBUG: writeX/ReaderWriter terminated with IOException, processed " + c + " bytes. cause: " + e.getMessage());
|
|
break;
|
|
}
|
|
|
|
// flush the streams
|
|
if (procOS != null) try { procOS.flush(); } catch (IOException e) {}
|
|
if (bufferOSWriter != null) try { bufferOSWriter.flush(); } catch (IOException e) {}
|
|
buffer = null;
|
|
} catch (IOException e) {}
|
|
}
|
|
|
|
/**
|
|
* This method outputs a logline to the serverlog with the current
|
|
* status of this instance.
|
|
*/
|
|
public void print() {
|
|
serverLog.logInfo("HTTPC", "RESPONSE: status=" + this.status + ", header=" + this.responseHeader.toString());
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
import java.net.*;
|
|
import java.io.*;
|
|
import javax.net.ssl.*;
|
|
import javax.security.cert.X509Certificate;
|
|
import java.security.KeyStore;
|
|
|
|
|
|
//The application can be modified to connect to a server outside
|
|
//the firewall by following SSLSocketClientWithTunneling.java.
|
|
|
|
public class SSLSocketClientWithClientAuth {
|
|
|
|
public static void main(String[] args) throws Exception {
|
|
String host = null;
|
|
int port = -1;
|
|
String path = null;
|
|
for (int i = 0; i < args.length; i++)
|
|
System.out.println(args[i]);
|
|
|
|
if (args.length < 3) {
|
|
System.out.println(
|
|
"USAGE: java SSLSocketClientWithClientAuth " +
|
|
"host port requestedfilepath");
|
|
System.exit(-1);
|
|
}
|
|
|
|
try {
|
|
host = args[0];
|
|
port = Integer.parseInt(args[1]);
|
|
path = args[2];
|
|
} catch (IllegalArgumentException e) {
|
|
System.out.println("USAGE: java SSLSocketClientWithClientAuth " +
|
|
"host port requestedfilepath");
|
|
System.exit(-1);
|
|
}
|
|
|
|
try {
|
|
|
|
SSLSocketFactory factory = null;
|
|
try {
|
|
SSLContext ctx;
|
|
KeyManagerFactory kmf;
|
|
KeyStore ks;
|
|
char[] passphrase = "passphrase".toCharArray();
|
|
|
|
ctx = SSLContext.getInstance("TLS");
|
|
kmf = KeyManagerFactory.getInstance("SunX509");
|
|
ks = KeyStore.getInstance("JKS");
|
|
|
|
ks.load(new FileInputStream("testkeys"), passphrase);
|
|
|
|
kmf.init(ks, passphrase);
|
|
ctx.init(kmf.getKeyManagers(), null, null);
|
|
|
|
factory = ctx.getSocketFactory();
|
|
} catch (Exception e) {
|
|
throw new IOException(e.getMessage());
|
|
}
|
|
|
|
SSLSocket socket = (SSLSocket)factory.createSocket(host, port);
|
|
|
|
socket.startHandshake();
|
|
|
|
PrintWriter out = new PrintWriter(
|
|
new BufferedWriter(
|
|
new OutputStreamWriter(
|
|
socket.getOutputStream())));
|
|
out.println("GET " + path + " HTTP/1.1");
|
|
out.println();
|
|
out.flush();
|
|
|
|
if (out.checkError())
|
|
System.out.println(
|
|
"SSLSocketClient: java.io.PrintWriter error");
|
|
|
|
BufferedReader in = new BufferedReader(
|
|
new InputStreamReader(
|
|
socket.getInputStream()));
|
|
|
|
String inputLine;
|
|
|
|
while ((inputLine = in.readLine()) != null)
|
|
System.out.println(inputLine);
|
|
|
|
in.close();
|
|
out.close();
|
|
socket.close();
|
|
|
|
} catch (Exception e) {
|
|
e.printStackTrace();
|
|
}
|
|
}
|
|
}
|
|
*/
|