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1022 lines
56 KiB
1022 lines
56 KiB
// httpdFileHandler.java
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// -----------------------
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// (C) by Michael Peter Christen; mc@yacy.net
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// first published on http://www.anomic.de
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// Frankfurt, Germany, 2004, 2005
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// last major change: 05.10.2005
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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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Class documentation:
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this class provides a file servlet and CGI interface
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for the httpd server.
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Whenever this server is addressed to load a local file,
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this class searches for the file in the local path as
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configured in the setting property 'rootPath'
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The servlet loads the file and returns it to the client.
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Every file can also act as an template for the built-in
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CGI interface. There is no specific path for CGI functions.
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CGI functionality is triggered, if for the file to-be-served
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'template.html' also a file 'template.class' exists. Then,
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the class file is called with the GET/POST properties that
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are attached to the http call.
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Possible variable hand-over are:
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- form method GET
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- form method POST, enctype text/plain
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- form method POST, enctype multipart/form-data
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The class that creates the CGI respond must have at least one
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static method of the form
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public static java.util.Hashtable respond(java.util.HashMap, serverSwitch)
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In the HashMap, the GET/POST variables are handed over.
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The return value is a Property object that contains replacement
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key/value pairs for the patterns in the template file.
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The templates must have the form
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either '#['<name>']#' for single attributes, or
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'#{'<enumname>'}#' and '#{/'<enumname>'}#' for enumerations of
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values '#['<value>']#'.
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A single value in repetitions/enumerations in the template has
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the property key '_'<enumname><count>'_'<value>
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Please see also the example files 'test.html' and 'test.java'
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*/
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package de.anomic.http;
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import java.awt.Image;
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import java.awt.image.BufferedImage;
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import java.io.BufferedInputStream;
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import java.io.ByteArrayInputStream;
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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.InputStream;
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import java.io.OutputStream;
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import java.io.UnsupportedEncodingException;
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import java.lang.ref.SoftReference;
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import java.lang.reflect.InvocationTargetException;
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import java.lang.reflect.Method;
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import java.net.URLDecoder;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.Map;
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import java.util.Properties;
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import java.util.logging.Level;
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import java.util.zip.GZIPInputStream;
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import java.util.zip.GZIPOutputStream;
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import de.anomic.htmlFilter.htmlFilterContentScraper;
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import de.anomic.plasma.plasmaParser;
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import de.anomic.plasma.plasmaSwitchboard;
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import de.anomic.server.serverByteBuffer;
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import de.anomic.server.serverClassLoader;
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import de.anomic.server.serverCore;
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import de.anomic.server.serverDate;
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import de.anomic.server.serverFileUtils;
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import de.anomic.server.serverObjects;
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import de.anomic.server.serverSwitch;
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import de.anomic.server.servletProperties;
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import de.anomic.server.logging.serverLog;
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import de.anomic.ymage.ymageMatrix;
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public final class httpdFileHandler {
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private static final boolean safeServletsMode = false; // if true then all servlets are called synchronized
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private static final Properties mimeTable = new Properties();
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// create a class loader
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private static final serverClassLoader provider = new serverClassLoader(/*this.getClass().getClassLoader()*/);
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private static serverSwitch<?> switchboard = null;
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private static plasmaSwitchboard sb = plasmaSwitchboard.getSwitchboard();
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private static File htRootPath = null;
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private static File htDocsPath = null;
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private static File htTemplatePath = null;
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private static String[] defaultFiles = null;
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private static File htDefaultPath = null;
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private static File htLocalePath = null;
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private static final HashMap<File, SoftReference<byte[]>> templateCache;
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private static final HashMap<File, SoftReference<Method>> templateMethodCache;
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public static boolean useTemplateCache = false;
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//private Properties connectionProperties = null;
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// creating a logger
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private static final serverLog theLogger = new serverLog("FILEHANDLER");
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static {
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final serverSwitch<?> theSwitchboard = plasmaSwitchboard.getSwitchboard();
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useTemplateCache = theSwitchboard.getConfig("enableTemplateCache","true").equalsIgnoreCase("true");
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templateCache = (useTemplateCache)? new HashMap<File, SoftReference<byte[]>>() : new HashMap<File, SoftReference<byte[]>>(0);
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templateMethodCache = (useTemplateCache) ? new HashMap<File, SoftReference<Method>>() : new HashMap<File, SoftReference<Method>>(0);
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if (httpdFileHandler.switchboard == null) {
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httpdFileHandler.switchboard = theSwitchboard;
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if (mimeTable.size() == 0) {
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// load the mime table
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final String mimeTablePath = theSwitchboard.getConfig("mimeConfig","");
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BufferedInputStream mimeTableInputStream = null;
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try {
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serverLog.logConfig("HTTPDFiles", "Loading mime mapping file " + mimeTablePath);
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mimeTableInputStream = new BufferedInputStream(new FileInputStream(new File(theSwitchboard.getRootPath(), mimeTablePath)));
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mimeTable.load(mimeTableInputStream);
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} catch (final Exception e) {
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serverLog.logSevere("HTTPDFiles", "ERROR: path to configuration file or configuration invalid\n" + e);
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System.exit(1);
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} finally {
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if (mimeTableInputStream != null) try { mimeTableInputStream.close(); } catch (final Exception e1) {}
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}
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}
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// create default files array
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initDefaultPath();
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// create a htRootPath: system pages
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if (htRootPath == null) {
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htRootPath = new File(theSwitchboard.getRootPath(), theSwitchboard.getConfig("htRootPath","htroot"));
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if (!(htRootPath.exists())) htRootPath.mkdir();
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}
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// create a htDocsPath: user defined pages
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if (htDocsPath == null) {
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htDocsPath = theSwitchboard.getConfigPath(plasmaSwitchboard.HTDOCS_PATH, plasmaSwitchboard.HTDOCS_PATH_DEFAULT);
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if (!(htDocsPath.exists())) htDocsPath.mkdirs();
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}
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// create a repository path
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final File repository = new File(htDocsPath, "repository");
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if (!repository.exists()) repository.mkdirs();
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// create a htTemplatePath
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if (htTemplatePath == null) {
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htTemplatePath = theSwitchboard.getConfigPath("htTemplatePath","htroot/env/templates");
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if (!(htTemplatePath.exists())) htTemplatePath.mkdir();
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}
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//This is now handles by #%env/templates/foo%#
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//if (templates.size() == 0) templates.putAll(httpTemplate.loadTemplates(htTemplatePath));
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// create htLocaleDefault, htLocalePath
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if (htDefaultPath == null) htDefaultPath = theSwitchboard.getConfigPath("htDefaultPath", "htroot");
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if (htLocalePath == null) htLocalePath = theSwitchboard.getConfigPath("locale.translated_html", "DATA/LOCALE/htroot");
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}
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}
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public static final void initDefaultPath() {
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// create default files array
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defaultFiles = switchboard.getConfig("defaultFiles","index.html").split(",");
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if (defaultFiles.length == 0) defaultFiles = new String[] {"index.html"};
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}
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/** Returns a path to the localized or default file according to the locale.language (from he switchboard)
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* @param path relative from htroot */
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public static File getLocalizedFile(final String path){
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return getLocalizedFile(path, switchboard.getConfig("locale.language","default"));
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}
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/** Returns a path to the localized or default file according to the parameter localeSelection
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* @param path relative from htroot
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* @param localeSelection language of localized file; locale.language from switchboard is used if localeSelection.equals("") */
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public static File getLocalizedFile(final String path, final String localeSelection){
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if (htDefaultPath == null) htDefaultPath = switchboard.getConfigPath("htDefaultPath","htroot");
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if (htLocalePath == null) htLocalePath = switchboard.getConfigPath("locale.translated_html","DATA/LOCALE/htroot");
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if (!(localeSelection.equals("default"))) {
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final File localePath = new File(htLocalePath, localeSelection + '/' + path);
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if (localePath.exists()) // avoid "NoSuchFile" troubles if the "localeSelection" is misspelled
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return localePath;
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}
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return new File(htDefaultPath, path);
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}
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// private void textMessage(OutputStream out, int retcode, String body) throws IOException {
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// httpd.sendRespondHeader(
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// this.connectionProperties, // the connection properties
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// out, // the output stream
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// "HTTP/1.1", // the http version that should be used
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// retcode, // the http status code
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// null, // the http status message
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// "text/plain", // the mimetype
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// body.length(), // the content length
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// httpc.nowDate(), // the modification date
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// null, // the expires date
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// null, // cookies
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// null, // content encoding
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// null); // transfer encoding
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// out.write(body.getBytes());
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// out.flush();
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// }
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private static final httpHeader getDefaultHeaders(final String path) {
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final httpHeader headers = new httpHeader();
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String ext;
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int pos;
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if ((pos = path.lastIndexOf('.')) < 0) {
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ext = "";
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} else {
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ext = path.substring(pos + 1).toLowerCase();
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}
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headers.put(httpHeader.SERVER, "AnomicHTTPD (www.anomic.de)");
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headers.put(httpHeader.DATE, HttpClient.dateString(new Date()));
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if(!(plasmaParser.mediaExtContains(ext))){
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headers.put(httpHeader.PRAGMA, "no-cache");
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}
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return headers;
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}
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public static void doGet(final Properties conProp, final httpHeader requestHeader, final OutputStream response) {
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doResponse(conProp, requestHeader, response, null);
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}
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public static void doHead(final Properties conProp, final httpHeader requestHeader, final OutputStream response) {
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doResponse(conProp, requestHeader, response, null);
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}
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public static void doPost(final Properties conProp, final httpHeader requestHeader, final OutputStream response, final InputStream body) {
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doResponse(conProp, requestHeader, response, body);
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}
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public static void doResponse(final Properties conProp, final httpHeader requestHeader, final OutputStream out, final InputStream body) {
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String path = null;
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try {
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// getting some connection properties
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final String method = conProp.getProperty(httpHeader.CONNECTION_PROP_METHOD);
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path = conProp.getProperty(httpHeader.CONNECTION_PROP_PATH);
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String argsString = conProp.getProperty(httpHeader.CONNECTION_PROP_ARGS); // is null if no args were given
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final String httpVersion = conProp.getProperty(httpHeader.CONNECTION_PROP_HTTP_VER);
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final String clientIP = conProp.getProperty(httpHeader.CONNECTION_PROP_CLIENTIP, "unknown-host");
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// check hack attacks in path
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if (path.indexOf("..") >= 0) {
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httpd.sendRespondError(conProp,out,4,403,null,"Access not allowed",null);
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return;
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}
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// url decoding of path
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try {
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path = URLDecoder.decode(path, "UTF-8");
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} catch (final UnsupportedEncodingException e) {
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// This should never occur
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assert(false) : "UnsupportedEncodingException: " + e.getMessage();
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}
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// check again hack attacks in path
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if (path.indexOf("..") >= 0) {
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httpd.sendRespondError(conProp,out,4,403,null,"Access not allowed",null);
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return;
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}
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// check permission/granted access
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String authorization = requestHeader.get(httpHeader.AUTHORIZATION);
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if (authorization != null && authorization.length() == 0) authorization = null;
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final String adminAccountBase64MD5 = switchboard.getConfig(httpd.ADMIN_ACCOUNT_B64MD5, "");
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int pos = path.lastIndexOf(".");
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final boolean adminAccountForLocalhost = sb.getConfigBool("adminAccountForLocalhost", false);
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final String refererHost = requestHeader.refererHost();
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final boolean accessFromLocalhost = serverCore.isLocalhost(clientIP) && (refererHost.length() == 0 || serverCore.isLocalhost(refererHost));
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final boolean grantedForLocalhost = adminAccountForLocalhost && accessFromLocalhost;
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final boolean protectedPage = (path.substring(0,(pos==-1)?path.length():pos)).endsWith("_p");
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final boolean accountEmpty = adminAccountBase64MD5.length() == 0;
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if (!grantedForLocalhost && protectedPage && !accountEmpty) {
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// authentication required
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if (authorization == null) {
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// no authorization given in response. Ask for that
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final httpHeader headers = getDefaultHeaders(path);
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headers.put(httpHeader.WWW_AUTHENTICATE,"Basic realm=\"admin log-in\"");
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//httpd.sendRespondHeader(conProp,out,httpVersion,401,headers);
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final servletProperties tp=new servletProperties();
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tp.put("returnto", path);
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//TODO: separate errorpage Wrong Login / No Login
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httpd.sendRespondError(conProp, out, 5, 401, "Wrong Authentication", "", new File("proxymsg/authfail.inc"), tp, null, headers);
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return;
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} else if (
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(httpd.staticAdminAuthenticated(authorization.trim().substring(6), switchboard) == 4) ||
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(sb.userDB.hasAdminRight(authorization, conProp.getProperty(httpHeader.CONNECTION_PROP_CLIENTIP), requestHeader.getHeaderCookies()))) {
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//Authentication successful. remove brute-force flag
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serverCore.bfHost.remove(conProp.getProperty(httpHeader.CONNECTION_PROP_CLIENTIP));
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} else {
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// a wrong authentication was given or the userDB user does not have admin access. Ask again
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serverLog.logInfo("HTTPD", "Wrong log-in for account 'admin' in http file handler for path '" + path + "' from host '" + clientIP + "'");
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final Integer attempts = serverCore.bfHost.get(clientIP);
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if (attempts == null)
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serverCore.bfHost.put(clientIP, new Integer(1));
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else
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serverCore.bfHost.put(clientIP, new Integer(attempts.intValue() + 1));
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final httpHeader headers = getDefaultHeaders(path);
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headers.put(httpHeader.WWW_AUTHENTICATE,"Basic realm=\"admin log-in\"");
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httpd.sendRespondHeader(conProp,out,httpVersion,401,headers);
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return;
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}
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}
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// parse arguments
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serverObjects args = new serverObjects();
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int argc = 0;
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if (argsString == null) {
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// no args here, maybe a POST with multipart extension
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int length = 0;
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//System.out.println("HEADER: " + requestHeader.toString()); // DEBUG
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if (method.equals(httpHeader.METHOD_POST)) {
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GZIPInputStream gzipBody = null;
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/* "If the message does include a non-identity transfer-coding, the Content-Length MUST be ignored."
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* [RFC 2616 HTTP/1.1, section 4.4] TODO: full RFC compliance
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*/
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if (requestHeader.gzip()) {
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length = -1;
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gzipBody = new GZIPInputStream(body);
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} else if (requestHeader.containsKey(httpHeader.CONTENT_LENGTH)) {
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length = Integer.parseInt(requestHeader.get(httpHeader.CONTENT_LENGTH));
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}
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// } else {
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// httpd.sendRespondError(conProp,out,4,403,null,"bad post values",null);
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// return;
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// }
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// if its a POST, it can be either multipart or as args in the body
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if ((requestHeader.containsKey(httpHeader.CONTENT_TYPE)) &&
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(requestHeader.get(httpHeader.CONTENT_TYPE).toLowerCase().startsWith("multipart"))) {
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// parse multipart
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final HashMap<String, byte[]> files = httpd.parseMultipart(requestHeader, args, (gzipBody!=null)?gzipBody:body, length);
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// integrate these files into the args
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if (files != null) {
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final Iterator<Map.Entry<String, byte[]>> fit = files.entrySet().iterator();
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Map.Entry<String, byte[]> entry;
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while (fit.hasNext()) {
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entry = fit.next();
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args.put(entry.getKey() + "$file", entry.getValue());
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}
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}
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argc = Integer.parseInt(requestHeader.get("ARGC"));
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} else {
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// parse args in body
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argc = httpd.parseArgs(args, (gzipBody!=null)?gzipBody:body, length);
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}
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} else {
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// no args
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argsString = null;
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args = null;
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argc = 0;
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}
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} else {
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// simple args in URL (stuff after the "?")
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argc = httpd.parseArgs(args, argsString);
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}
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// check for cross site scripting - attacks in request arguments
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if (args != null && argc > 0) {
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// check all values for occurrences of script values
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final Iterator<String> e = args.values().iterator(); // enumeration of values
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String val;
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while (e.hasNext()) {
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val = e.next();
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if ((val != null) && (val.indexOf("<script") >= 0)) {
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// deny request
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httpd.sendRespondError(conProp,out,4,403,null,"bad post values",null);
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return;
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}
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}
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}
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// we are finished with parsing
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// the result of value hand-over is in args and argc
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if (path.length() == 0) {
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httpd.sendRespondError(conProp,out,4,400,null,"Bad Request",null);
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out.flush();
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return;
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}
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File targetClass=null;
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// locate the file
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if (!(path.startsWith("/"))) path = "/" + path; // attach leading slash
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// a different language can be desired (by i.e. ConfigBasic.html) than the one stored in the locale.language
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String localeSelection = switchboard.getConfig("locale.language","default");
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if (args != null && (args.containsKey("language"))) {
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// TODO 9.11.06 Bost: a class with information about available languages is needed.
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// the indexOf(".") is just a workaround because there from ConfigLanguage.html commes "de.lng" and
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// from ConfigBasic.html comes just "de" in the "language" parameter
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localeSelection = args.get("language", localeSelection);
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if (localeSelection.indexOf(".") != -1)
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localeSelection = localeSelection.substring(0, localeSelection.indexOf("."));
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}
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File targetFile = getLocalizedFile(path, localeSelection);
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final String targetExt = conProp.getProperty("EXT","");
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targetClass = rewriteClassFile(new File(htDefaultPath, path));
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if (path.endsWith("/")) {
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String testpath;
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// attach default file name
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for (int i = 0; i < defaultFiles.length; i++) {
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testpath = path + defaultFiles[i];
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targetFile = getOverlayedFile(testpath);
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targetClass = getOverlayedClass(testpath);
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if (targetFile.exists()) {
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path = testpath;
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break;
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}
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}
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//no defaultfile, send a dirlisting
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if (targetFile == null || !targetFile.exists()) {
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final StringBuffer aBuffer = new StringBuffer();
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aBuffer.append("<html>\n<head>\n</head>\n<body>\n<h1>Index of " + path + "</h1>\n <ul>\n");
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final File dir = new File(htDocsPath, path);
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String[] list = dir.list();
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if (list == null) list = new String[0]; // should not occur!
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File f;
|
|
String size;
|
|
long sz;
|
|
String headline, author, description;
|
|
int images, links;
|
|
htmlFilterContentScraper scraper;
|
|
for (int i = 0; i < list.length; i++) {
|
|
f = new File(dir, list[i]);
|
|
if (f.isDirectory()) {
|
|
aBuffer.append(" <li><a href=\"" + path + list[i] + "/\">" + list[i] + "/</a><br></li>\n");
|
|
} else {
|
|
if (list[i].endsWith("html") || (list[i].endsWith("htm"))) {
|
|
scraper = htmlFilterContentScraper.parseResource(f);
|
|
headline = scraper.getTitle();
|
|
author = scraper.getAuthor();
|
|
description = scraper.getDescription();
|
|
images = scraper.getImages().size();
|
|
links = scraper.getAnchors().size();
|
|
} else {
|
|
headline = null;
|
|
author = null;
|
|
description = null;
|
|
images = 0;
|
|
links = 0;
|
|
}
|
|
sz = f.length();
|
|
if (sz < 1024) {
|
|
size = sz + " bytes";
|
|
} else if (sz < 1024 * 1024) {
|
|
size = (sz / 1024) + " KB";
|
|
} else {
|
|
size = (sz / 1024 / 1024) + " MB";
|
|
}
|
|
aBuffer.append(" <li>");
|
|
if ((headline != null) && (headline.length() > 0)) aBuffer.append("<a href=\"" + list[i] + "\"><b>" + headline + "</b></a><br>");
|
|
aBuffer.append("<a href=\"" + path + list[i] + "\">" + list[i] + "</a><br>");
|
|
if ((author != null) && (author.length() > 0)) aBuffer.append("Author: " + author + "<br>");
|
|
if ((description != null) && (description.length() > 0)) aBuffer.append("Description: " + description + "<br>");
|
|
aBuffer.append(serverDate.formatShortDay(new Date(f.lastModified())) + ", " + size + ((images > 0) ? ", " + images + " images" : "") + ((links > 0) ? ", " + links + " links" : "") + "<br></li>\n");
|
|
}
|
|
}
|
|
aBuffer.append(" </ul>\n</body>\n</html>\n");
|
|
|
|
// write the list to the client
|
|
httpd.sendRespondHeader(conProp, out, httpVersion, 200, null, "text/html", aBuffer.length(), new Date(dir.lastModified()), null, new httpHeader(), null, null, true);
|
|
if (!method.equals(httpHeader.METHOD_HEAD)) {
|
|
out.write(aBuffer.toString().getBytes());
|
|
}
|
|
return;
|
|
}
|
|
} else {
|
|
//XXX: you cannot share a .png/.gif file with a name like a class in htroot.
|
|
if ( !(targetFile.exists()) && !((path.endsWith("png")||path.endsWith("gif")||path.endsWith(".stream"))&&targetClass!=null ) ){
|
|
targetFile = new File(htDocsPath, path);
|
|
targetClass = rewriteClassFile(new File(htDocsPath, path));
|
|
}
|
|
}
|
|
|
|
//File targetClass = rewriteClassFile(targetFile);
|
|
//We need tp here
|
|
servletProperties tp = new servletProperties();
|
|
Date targetDate;
|
|
boolean nocache = false;
|
|
|
|
if ((targetClass != null) && (path.endsWith("png"))) {
|
|
// call an image-servlet to produce an on-the-fly - generated image
|
|
Object img = null;
|
|
try {
|
|
requestHeader.put(httpHeader.CONNECTION_PROP_CLIENTIP, conProp.getProperty(httpHeader.CONNECTION_PROP_CLIENTIP));
|
|
requestHeader.put(httpHeader.CONNECTION_PROP_PATH, path);
|
|
// in case that there are no args given, args = null or empty hashmap
|
|
img = invokeServlet(targetClass, requestHeader, args);
|
|
} catch (final InvocationTargetException e) {
|
|
theLogger.logSevere("INTERNAL ERROR: " + e.toString() + ":" +
|
|
e.getMessage() +
|
|
" target exception at " + targetClass + ": " +
|
|
e.getTargetException().toString() + ":" +
|
|
e.getTargetException().getMessage() +
|
|
"; java.awt.graphicsenv='" + System.getProperty("java.awt.graphicsenv","") + "'",e);
|
|
targetClass = null;
|
|
}
|
|
if (img == null) {
|
|
// error with image generation; send file-not-found
|
|
httpd.sendRespondError(conProp, out, 3, 404, "File not Found", null, null);
|
|
} else {
|
|
if (img instanceof ymageMatrix) {
|
|
final ymageMatrix yp = (ymageMatrix) img;
|
|
// send an image to client
|
|
targetDate = new Date(System.currentTimeMillis());
|
|
nocache = true;
|
|
final String mimeType = mimeTable.getProperty(targetExt, "text/html");
|
|
final serverByteBuffer result = ymageMatrix.exportImage(yp.getImage(), targetExt);
|
|
|
|
// write the array to the client
|
|
httpd.sendRespondHeader(conProp, out, httpVersion, 200, null, mimeType, result.length(), targetDate, null, null, null, null, nocache);
|
|
if (!method.equals(httpHeader.METHOD_HEAD)) {
|
|
result.writeTo(out);
|
|
}
|
|
}
|
|
if (img instanceof Image) {
|
|
final Image i = (Image) img;
|
|
// send an image to client
|
|
targetDate = new Date(System.currentTimeMillis());
|
|
nocache = true;
|
|
final String mimeType = mimeTable.getProperty(targetExt, "text/html");
|
|
|
|
// generate an byte array from the generated image
|
|
int width = i.getWidth(null); if (width < 0) width = 96; // bad hack
|
|
int height = i.getHeight(null); if (height < 0) height = 96; // bad hack
|
|
final BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
|
|
bi.createGraphics().drawImage(i, 0, 0, width, height, null);
|
|
final serverByteBuffer result = ymageMatrix.exportImage(bi, targetExt);
|
|
|
|
// write the array to the client
|
|
httpd.sendRespondHeader(conProp, out, httpVersion, 200, null, mimeType, result.length(), targetDate, null, null, null, null, nocache);
|
|
if (!method.equals(httpHeader.METHOD_HEAD)) {
|
|
result.writeTo(out);
|
|
}
|
|
}
|
|
}
|
|
} else if ((targetClass != null) && (path.endsWith(".stream"))) {
|
|
// call rewrite-class
|
|
requestHeader.put(httpHeader.CONNECTION_PROP_CLIENTIP, conProp.getProperty(httpHeader.CONNECTION_PROP_CLIENTIP));
|
|
requestHeader.put(httpHeader.CONNECTION_PROP_PATH, path);
|
|
//requestHeader.put(httpHeader.CONNECTION_PROP_INPUTSTREAM, body);
|
|
//requestHeader.put(httpHeader.CONNECTION_PROP_OUTPUTSTREAM, out);
|
|
|
|
httpd.sendRespondHeader(conProp, out, httpVersion, 200, null);
|
|
|
|
// in case that there are no args given, args = null or empty hashmap
|
|
/* servletProperties tp = (servlerObjects) */ invokeServlet(targetClass, requestHeader, args);
|
|
forceConnectionClose(conProp);
|
|
return;
|
|
} else if ((targetFile.exists()) && (targetFile.canRead())) {
|
|
// we have found a file that can be written to the client
|
|
// if this file uses templates, then we use the template
|
|
// re-write - method to create an result
|
|
final String mimeType = mimeTable.getProperty(targetExt,"text/html");
|
|
final boolean zipContent = requestHeader.acceptGzip() && httpd.shallTransportZipped("." + conProp.getProperty("EXT",""));
|
|
if (path.endsWith("html") ||
|
|
path.endsWith("xml") ||
|
|
path.endsWith("rdf") ||
|
|
path.endsWith("rss") ||
|
|
path.endsWith("csv") ||
|
|
path.endsWith("pac") ||
|
|
path.endsWith("src") ||
|
|
path.endsWith("vcf") ||
|
|
path.endsWith("/") ||
|
|
path.equals("/robots.txt")) {
|
|
|
|
/*targetFile = getLocalizedFile(path);
|
|
if (!(targetFile.exists())) {
|
|
// try to find that file in the htDocsPath
|
|
File trialFile = new File(htDocsPath, path);
|
|
if (trialFile.exists()) targetFile = trialFile;
|
|
}*/
|
|
|
|
|
|
// call rewrite-class
|
|
|
|
if (targetClass == null) {
|
|
targetDate = new Date(targetFile.lastModified());
|
|
} else {
|
|
// CGI-class: call the class to create a property for rewriting
|
|
try {
|
|
requestHeader.put(httpHeader.CONNECTION_PROP_CLIENTIP, conProp.getProperty(httpHeader.CONNECTION_PROP_CLIENTIP));
|
|
requestHeader.put(httpHeader.CONNECTION_PROP_PATH, path);
|
|
// in case that there are no args given, args = null or empty hashmap
|
|
final Object tmp = invokeServlet(targetClass, requestHeader, args);
|
|
if (tmp == null) {
|
|
// if no args given, then tp will be an empty Hashtable object (not null)
|
|
tp = new servletProperties();
|
|
} else if (tmp instanceof servletProperties) {
|
|
tp = (servletProperties) tmp;
|
|
} else {
|
|
tp = new servletProperties((serverObjects) tmp);
|
|
}
|
|
// check if the servlets requests authentification
|
|
if (tp.containsKey(servletProperties.ACTION_AUTHENTICATE)) {
|
|
// handle brute-force protection
|
|
if (authorization != null) {
|
|
serverLog.logInfo("HTTPD", "dynamic log-in for account 'admin' in http file handler for path '" + path + "' from host '" + clientIP + "'");
|
|
final Integer attempts = serverCore.bfHost.get(clientIP);
|
|
if (attempts == null)
|
|
serverCore.bfHost.put(clientIP, new Integer(1));
|
|
else
|
|
serverCore.bfHost.put(clientIP, new Integer(attempts.intValue() + 1));
|
|
}
|
|
// send authentication request to browser
|
|
final httpHeader headers = getDefaultHeaders(path);
|
|
headers.put(httpHeader.WWW_AUTHENTICATE,"Basic realm=\"" + tp.get(servletProperties.ACTION_AUTHENTICATE, "") + "\"");
|
|
httpd.sendRespondHeader(conProp,out,httpVersion,401,headers);
|
|
return;
|
|
} else if (tp.containsKey(servletProperties.ACTION_LOCATION)) {
|
|
String location = tp.get(servletProperties.ACTION_LOCATION, "");
|
|
if (location.length() == 0) location = path;
|
|
|
|
final httpHeader headers = getDefaultHeaders(path);
|
|
headers.setCookieVector(tp.getOutgoingHeader().getCookieVector()); //put the cookies into the new header TODO: can we put all headerlines, without trouble?
|
|
headers.put(httpHeader.LOCATION,location);
|
|
httpd.sendRespondHeader(conProp,out,httpVersion,302,headers);
|
|
return;
|
|
}
|
|
// add the application version, the uptime and the client name to every rewrite table
|
|
tp.put(servletProperties.PEER_STAT_VERSION, switchboard.getConfig("version", ""));
|
|
tp.put(servletProperties.PEER_STAT_UPTIME, ((System.currentTimeMillis() - serverCore.startupTime) / 1000) / 60); // uptime in minutes
|
|
tp.putHTML(servletProperties.PEER_STAT_CLIENTNAME, switchboard.getConfig("peerName", "anomic"));
|
|
tp.put(servletProperties.PEER_STAT_MYTIME, serverDate.formatShortSecond());
|
|
//System.out.println("respond props: " + ((tp == null) ? "null" : tp.toString())); // debug
|
|
} catch (final InvocationTargetException e) {
|
|
if (e.getCause() instanceof InterruptedException) {
|
|
throw new InterruptedException(e.getCause().getMessage());
|
|
}
|
|
|
|
theLogger.logSevere("INTERNAL ERROR: " + e.toString() + ":" +
|
|
e.getMessage() +
|
|
" target exception at " + targetClass + ": " +
|
|
e.getTargetException().toString() + ":" +
|
|
e.getTargetException().getMessage(),e);
|
|
targetClass = null;
|
|
throw e;
|
|
}
|
|
targetDate = new Date(System.currentTimeMillis());
|
|
nocache = true;
|
|
}
|
|
|
|
// rewrite the file
|
|
InputStream fis = null;
|
|
|
|
// read the file/template
|
|
byte[] templateContent = null;
|
|
if (useTemplateCache) {
|
|
final long fileSize = targetFile.length();
|
|
if (fileSize <= 512 * 1024) {
|
|
// read from cache
|
|
SoftReference<byte[]> ref = templateCache.get(targetFile);
|
|
if (ref != null) {
|
|
templateContent = ref.get();
|
|
if (templateContent == null) templateCache.remove(targetFile);
|
|
}
|
|
|
|
if (templateContent == null) {
|
|
// loading the content of the template file into
|
|
// a byte array
|
|
templateContent = serverFileUtils.read(targetFile);
|
|
|
|
// storing the content into the cache
|
|
ref = new SoftReference<byte[]>(templateContent);
|
|
templateCache.put(targetFile, ref);
|
|
if (theLogger.isLoggable(Level.FINEST))
|
|
theLogger.logFinest("Cache MISS for file " + targetFile);
|
|
} else {
|
|
if (theLogger.isLoggable(Level.FINEST))
|
|
theLogger.logFinest("Cache HIT for file " + targetFile);
|
|
}
|
|
|
|
// creating an inputstream needed by the template
|
|
// rewrite function
|
|
fis = new ByteArrayInputStream(templateContent);
|
|
templateContent = null;
|
|
} else {
|
|
// read from file directly
|
|
fis = new BufferedInputStream(new FileInputStream(targetFile));
|
|
}
|
|
} else {
|
|
fis = new BufferedInputStream(new FileInputStream(targetFile));
|
|
}
|
|
|
|
// write the array to the client
|
|
// we can do that either in standard mode (whole thing completely) or in chunked mode
|
|
// since yacy clients do not understand chunked mode (yet), we use this only for communication with the administrator
|
|
final boolean yacyClient = requestHeader.userAgent().startsWith("yacy");
|
|
final boolean chunked = !method.equals(httpHeader.METHOD_HEAD) && !yacyClient && httpVersion.equals(httpHeader.HTTP_VERSION_1_1);
|
|
if (chunked) {
|
|
// send page in chunks and parse SSIs
|
|
final serverByteBuffer o = new serverByteBuffer();
|
|
// apply templates
|
|
httpTemplate.writeTemplate(fis, o, tp, "-UNRESOLVED_PATTERN-".getBytes("UTF-8"));
|
|
httpd.sendRespondHeader(conProp, out, httpVersion, 200, null, mimeType, -1, targetDate, null, tp.getOutgoingHeader(), null, "chunked", nocache);
|
|
// send the content in chunked parts, see RFC 2616 section 3.6.1
|
|
final httpChunkedOutputStream chos = new httpChunkedOutputStream(out);
|
|
httpSSI.writeSSI(o, chos, authorization, clientIP);
|
|
//chos.write(result);
|
|
chos.finish();
|
|
} else {
|
|
// send page as whole thing, SSIs are not possible
|
|
final String contentEncoding = (zipContent) ? "gzip" : null;
|
|
// apply templates
|
|
final serverByteBuffer o1 = new serverByteBuffer();
|
|
httpTemplate.writeTemplate(fis, o1, tp, "-UNRESOLVED_PATTERN-".getBytes("UTF-8"));
|
|
|
|
final serverByteBuffer o = new serverByteBuffer();
|
|
|
|
if (zipContent) {
|
|
GZIPOutputStream zippedOut = new GZIPOutputStream(o);
|
|
httpSSI.writeSSI(o1, zippedOut, authorization, clientIP);
|
|
//httpTemplate.writeTemplate(fis, zippedOut, tp, "-UNRESOLVED_PATTERN-".getBytes("UTF-8"));
|
|
zippedOut.finish();
|
|
zippedOut.flush();
|
|
zippedOut.close();
|
|
zippedOut = null;
|
|
} else {
|
|
httpSSI.writeSSI(o1, o, authorization, clientIP);
|
|
//httpTemplate.writeTemplate(fis, o, tp, "-UNRESOLVED_PATTERN-".getBytes("UTF-8"));
|
|
}
|
|
if (method.equals(httpHeader.METHOD_HEAD)) {
|
|
httpd.sendRespondHeader(conProp, out,
|
|
httpVersion, 200, null, mimeType, o.length(),
|
|
targetDate, null, tp.getOutgoingHeader(),
|
|
contentEncoding, null, nocache);
|
|
} else {
|
|
final byte[] result = o.getBytes(); // this interrupts streaming (bad idea!)
|
|
httpd.sendRespondHeader(conProp, out,
|
|
httpVersion, 200, null, mimeType, result.length,
|
|
targetDate, null, tp.getOutgoingHeader(),
|
|
contentEncoding, null, nocache);
|
|
serverFileUtils.copy(result, out);
|
|
}
|
|
}
|
|
} else { // no html
|
|
|
|
int statusCode = 200;
|
|
int rangeStartOffset = 0;
|
|
httpHeader header = new httpHeader();
|
|
|
|
// adding the accept ranges header
|
|
header.put(httpHeader.ACCEPT_RANGES, "bytes");
|
|
|
|
// reading the files md5 hash if availabe and use it as ETAG of the resource
|
|
String targetMD5 = null;
|
|
final File targetMd5File = new File(targetFile + ".md5");
|
|
try {
|
|
if (targetMd5File.exists()) {
|
|
//String description = null;
|
|
targetMD5 = new String(serverFileUtils.read(targetMd5File));
|
|
pos = targetMD5.indexOf('\n');
|
|
if (pos >= 0) {
|
|
//description = targetMD5.substring(pos + 1);
|
|
targetMD5 = targetMD5.substring(0, pos);
|
|
}
|
|
|
|
// using the checksum as ETAG header
|
|
header.put(httpHeader.ETAG, targetMD5);
|
|
}
|
|
} catch (final IOException e) {
|
|
e.printStackTrace();
|
|
}
|
|
|
|
if (requestHeader.containsKey(httpHeader.RANGE)) {
|
|
final Object ifRange = requestHeader.ifRange();
|
|
if ((ifRange == null)||
|
|
(ifRange instanceof Date && targetFile.lastModified() == ((Date)ifRange).getTime()) ||
|
|
(ifRange instanceof String && ifRange.equals(targetMD5))) {
|
|
final String rangeHeaderVal = requestHeader.get(httpHeader.RANGE).trim();
|
|
if (rangeHeaderVal.startsWith("bytes=")) {
|
|
final String rangesVal = rangeHeaderVal.substring("bytes=".length());
|
|
final String[] ranges = rangesVal.split(",");
|
|
if ((ranges.length == 1)&&(ranges[0].endsWith("-"))) {
|
|
rangeStartOffset = Integer.valueOf(ranges[0].substring(0,ranges[0].length()-1)).intValue();
|
|
statusCode = 206;
|
|
if (header == null) header = new httpHeader();
|
|
header.put(httpHeader.CONTENT_RANGE, "bytes " + rangeStartOffset + "-" + (targetFile.length()-1) + "/" + targetFile.length());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// write the file to the client
|
|
targetDate = new Date(targetFile.lastModified());
|
|
final long contentLength = (zipContent)?-1:targetFile.length()-rangeStartOffset;
|
|
final String contentEncoding = (zipContent)?"gzip":null;
|
|
final String transferEncoding = (!httpVersion.equals(httpHeader.HTTP_VERSION_1_1))?null:(zipContent)?"chunked":null;
|
|
if (!httpVersion.equals(httpHeader.HTTP_VERSION_1_1) && zipContent) forceConnectionClose(conProp);
|
|
|
|
httpd.sendRespondHeader(conProp, out, httpVersion, statusCode, null, mimeType, contentLength, targetDate, null, header, contentEncoding, transferEncoding, nocache);
|
|
|
|
if (!method.equals(httpHeader.METHOD_HEAD)) {
|
|
httpChunkedOutputStream chunkedOut = null;
|
|
GZIPOutputStream zipped = null;
|
|
OutputStream newOut = out;
|
|
|
|
if (transferEncoding != null) {
|
|
chunkedOut = new httpChunkedOutputStream(newOut);
|
|
newOut = chunkedOut;
|
|
}
|
|
if (contentEncoding != null) {
|
|
zipped = new GZIPOutputStream(newOut);
|
|
newOut = zipped;
|
|
}
|
|
|
|
serverFileUtils.copyRange(targetFile, newOut, rangeStartOffset);
|
|
|
|
if (zipped != null) {
|
|
zipped.flush();
|
|
zipped.finish();
|
|
}
|
|
if (chunkedOut != null) {
|
|
chunkedOut.finish();
|
|
}
|
|
|
|
// flush all
|
|
try {newOut.flush();}catch (final Exception e) {}
|
|
|
|
// wait a little time until everything closes so that clients can read from the streams/sockets
|
|
if ((contentLength >= 0) && ((String)requestHeader.get(httpHeader.CONNECTION, "close")).indexOf("keep-alive") == -1) {
|
|
// in case that the client knows the size in advance (contentLength present) the waiting will have no effect on the interface performance
|
|
// but if the client waits on a connection interruption this will slow down.
|
|
try {Thread.sleep(2000);} catch (final InterruptedException e) {} // FIXME: is this necessary?
|
|
}
|
|
}
|
|
|
|
// check mime type again using the result array: these are 'magics'
|
|
// if (serverByteBuffer.equals(result, 1, "PNG".getBytes())) mimeType = mimeTable.getProperty("png","text/html");
|
|
// else if (serverByteBuffer.equals(result, 0, "GIF89".getBytes())) mimeType = mimeTable.getProperty("gif","text/html");
|
|
// else if (serverByteBuffer.equals(result, 6, "JFIF".getBytes())) mimeType = mimeTable.getProperty("jpg","text/html");
|
|
//System.out.print("MAGIC:"); for (int i = 0; i < 10; i++) System.out.print(Integer.toHexString((int) result[i]) + ","); System.out.println();
|
|
}
|
|
} else {
|
|
httpd.sendRespondError(conProp,out,3,404,"File not Found",null,null);
|
|
return;
|
|
}
|
|
} catch (final Exception e) {
|
|
try {
|
|
// doing some errorhandling ...
|
|
int httpStatusCode = 400;
|
|
final String httpStatusText = null;
|
|
final StringBuffer errorMessage = new StringBuffer();
|
|
Exception errorExc = null;
|
|
|
|
final String errorMsg = e.getMessage();
|
|
if (
|
|
(e instanceof InterruptedException) ||
|
|
((errorMsg != null) && (errorMsg.startsWith("Socket closed")) && (Thread.currentThread().isInterrupted()))
|
|
) {
|
|
errorMessage.append("Interruption detected while processing query.");
|
|
httpStatusCode = 503;
|
|
} else {
|
|
if ((errorMsg != null) &&
|
|
(
|
|
errorMsg.startsWith("Broken pipe") ||
|
|
errorMsg.startsWith("Connection reset") ||
|
|
errorMsg.startsWith("Software caused connection abort")
|
|
)) {
|
|
// client closed the connection, so we just end silently
|
|
errorMessage.append("Client unexpectedly closed connection while processing query.");
|
|
} else if ((errorMsg != null) && (errorMsg.startsWith("Connection timed out"))) {
|
|
errorMessage.append("Connection timed out.");
|
|
} else {
|
|
errorMessage.append("Unexpected error while processing query.");
|
|
httpStatusCode = 500;
|
|
errorExc = e;
|
|
}
|
|
}
|
|
|
|
errorMessage.append("\nSession: ").append(Thread.currentThread().getName())
|
|
.append("\nQuery: ").append(path)
|
|
.append("\nClient: ").append(conProp.getProperty(httpHeader.CONNECTION_PROP_CLIENTIP,"unknown"))
|
|
.append("\nReason: ").append(e.toString());
|
|
|
|
if (!conProp.containsKey(httpHeader.CONNECTION_PROP_PROXY_RESPOND_HEADER)) {
|
|
// sending back an error message to the client
|
|
// if we have not already send an http header
|
|
httpd.sendRespondError(conProp,out, 4, httpStatusCode, httpStatusText, new String(errorMessage),errorExc);
|
|
} else {
|
|
// otherwise we close the connection
|
|
forceConnectionClose(conProp);
|
|
}
|
|
|
|
// if it is an unexpected error we log it
|
|
if (httpStatusCode == 500) {
|
|
theLogger.logWarning(new String(errorMessage),e);
|
|
}
|
|
|
|
} catch (final Exception ee) {
|
|
forceConnectionClose(conProp);
|
|
}
|
|
|
|
} finally {
|
|
try {out.flush();}catch (final Exception e) {}
|
|
}
|
|
}
|
|
|
|
public static final File getOverlayedClass(final String path) {
|
|
File targetClass;
|
|
targetClass = rewriteClassFile(new File(htDefaultPath, path)); //works for default and localized files
|
|
if (targetClass == null || !targetClass.exists()) {
|
|
//works for htdocs
|
|
targetClass=rewriteClassFile(new File(htDocsPath, path));
|
|
}
|
|
return targetClass;
|
|
}
|
|
|
|
public static final File getOverlayedFile(final String path) {
|
|
File targetFile;
|
|
targetFile = getLocalizedFile(path);
|
|
if (!targetFile.exists()) {
|
|
targetFile = new File(htDocsPath, path);
|
|
}
|
|
return targetFile;
|
|
}
|
|
|
|
private static final void forceConnectionClose(final Properties conprop) {
|
|
if (conprop != null) {
|
|
conprop.setProperty(httpHeader.CONNECTION_PROP_PERSISTENT,"close");
|
|
}
|
|
}
|
|
|
|
private static final File rewriteClassFile(final File template) {
|
|
try {
|
|
String f = template.getCanonicalPath();
|
|
final int p = f.lastIndexOf(".");
|
|
if (p < 0) return null;
|
|
f = f.substring(0, p) + ".class";
|
|
//System.out.println("constructed class path " + f);
|
|
final File cf = new File(f);
|
|
if (cf.exists()) return cf;
|
|
return null;
|
|
} catch (final IOException e) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
private static final Method rewriteMethod(final File classFile) {
|
|
Method m = null;
|
|
// now make a class out of the stream
|
|
try {
|
|
if (useTemplateCache) {
|
|
final SoftReference<Method> ref = templateMethodCache.get(classFile);
|
|
if (ref != null) {
|
|
m = ref.get();
|
|
if (m == null) {
|
|
templateMethodCache.remove(classFile);
|
|
} else {
|
|
return m;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
final Class<?> c = provider.loadClass(classFile);
|
|
final Class<?>[] params = new Class[] {
|
|
httpHeader.class,
|
|
serverObjects.class,
|
|
serverSwitch.class };
|
|
m = c.getMethod("respond", params);
|
|
|
|
if (useTemplateCache) {
|
|
// storing the method into the cache
|
|
final SoftReference<Method> ref = new SoftReference<Method>(m);
|
|
templateMethodCache.put(classFile, ref);
|
|
}
|
|
|
|
} catch (final ClassNotFoundException e) {
|
|
System.out.println("INTERNAL ERROR: class " + classFile + " is missing:" + e.getMessage());
|
|
} catch (final NoSuchMethodException e) {
|
|
System.out.println("INTERNAL ERROR: method respond not found in class " + classFile + ": " + e.getMessage());
|
|
}
|
|
//System.out.println("found method: " + m.toString());
|
|
return m;
|
|
}
|
|
|
|
public static final Object invokeServlet(final File targetClass, final httpHeader request, final serverObjects args) throws IllegalArgumentException, IllegalAccessException, InvocationTargetException {
|
|
Object result;
|
|
if (safeServletsMode) synchronized (switchboard) {
|
|
result = rewriteMethod(targetClass).invoke(null, new Object[] {request, args, switchboard});
|
|
} else {
|
|
result = rewriteMethod(targetClass).invoke(null, new Object[] {request, args, switchboard});
|
|
}
|
|
return result;
|
|
}
|
|
|
|
public void doConnect(final Properties conProp, final httpHeader requestHeader, final InputStream clientIn, final OutputStream clientOut) {
|
|
throw new UnsupportedOperationException();
|
|
}
|
|
|
|
}
|