// httpd.java // ----------------------- // (C) by Michael Peter Christen; mc@anomic.de // first published on http://www.anomic.de // Frankfurt, Germany, 2004 // // last major change: $LastChangedDate$ by $LastChangedBy$ // Revision: $LastChangedRevision$ // // This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; either version 2 of the License, or // (at your option) any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA // // Using this software in any meaning (reading, learning, copying, compiling, // running) means that you agree that the Author(s) is (are) not responsible // for cost, loss of data or any harm that may be caused directly or indirectly // by usage of this softare or this documentation. The usage of this software // is on your own risk. The installation and usage (starting/running) of this // software may allow other people or application to access your computer and // any attached devices and is highly dependent on the configuration of the // software which must be done by the user of the software; the author(s) is // (are) also not responsible for proper configuration and usage of the // software, even if provoked by documentation provided together with // the software. // // Any changes to this file according to the GPL as documented in the file // gpl.txt aside this file in the shipment you received can be done to the // lines that follows this copyright notice here, but changes must not be // done inside the copyright notive above. A re-distribution must contain // the intact and unchanged copyright notice. // Contributions and changes to the program code must be marked as such. package de.anomic.http; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.io.PrintStream; import java.io.UnsupportedEncodingException; import java.lang.reflect.Constructor; import java.net.InetAddress; import java.net.MalformedURLException; import java.net.URL; import java.util.Arrays; import java.util.Date; import java.util.HashMap; import java.util.HashSet; import java.util.Iterator; import java.util.Properties; import java.util.StringTokenizer; import de.anomic.server.serverByteBuffer; import de.anomic.server.serverCodings; import de.anomic.server.serverCore; import de.anomic.server.serverFileUtils; import de.anomic.server.serverHandler; import de.anomic.server.serverObjects; import de.anomic.server.serverSwitch; import de.anomic.server.logging.serverLog; import de.anomic.yacy.yacyCore; import de.anomic.plasma.plasmaSwitchboard; import de.anomic.data.userDB; /** * Instances of this class can be passed as argument to the serverCore. * The generic server dispatches HTTP commands and calls the * method GET, HEAD or POST in this class * these methods parse the command line and decide wether to call * a proxy servlet or a file server servlet */ public final class httpd implements serverHandler { /** * A hashset containing extensions that indicate content that should not be transported * using zipped content encoding * @see #shallTransportZipped(String) */ private static final HashSet disallowZippedContentEncoding = new HashSet(Arrays.asList(new String[]{ ".gz", ".tgz", ".jpg", ".jpeg", ".gif", ".zip", ".rar", ".bz2", ".lha", ".jar", ".rpm", ".arc", ".arj" })); // static objects public static final String vDATE = "<>"; public static final String copyright = "[ HTTP SERVER: AnomicHTTPD v" + vDATE + " by Michael Christen / www.anomic.de ]"; public static final String hline = "-------------------------------------------------------------------------------"; public static HashMap reverseMappingCache = new HashMap(); private httpdHandler proxyHandler = null; // a servlet that holds the proxy functions private httpdHandler fileHandler = null; // a servlet that holds the file serving functions private httpdHandler soapHandler = null; private static plasmaSwitchboard switchboard = null; private static String virtualHost = null; public static boolean keepAliveSupport = false; // class objects private serverCore.Session session; // holds the session object of the calling class private InetAddress userAddress; // the address of the client private boolean allowProxy; private boolean allowServer; // for authentication private boolean use_proxyAccounts = false; private boolean proxyAccounts_init = false; // is use_proxyAccounts set? private String serverAccountBase64MD5; private String clientIP; // the connection properties private final Properties prop = new Properties(); private int emptyRequestCount = 0; private int keepAliveRequestCount = 0; // needed for logging private final serverLog log = new serverLog("HTTPD"); // class methods public httpd(serverSwitch s, httpdHandler fileHandler, httpdHandler proxyHandler) { // handler info httpd.switchboard = (plasmaSwitchboard)s; this.fileHandler = fileHandler; this.proxyHandler = proxyHandler; httpd.virtualHost = switchboard.getConfig("fileHost","localhost"); // authentication: by default none this.proxyAccounts_init = false; this.serverAccountBase64MD5 = null; this.clientIP = null; // configuring keep alive support keepAliveSupport = Boolean.valueOf(switchboard.getConfig("connectionKeepAliveSupport","false")).booleanValue(); } public Properties getConProp() { return this.prop; } /** * Can be used to reset this {@link serverHandler} oject so that * it can be reused for further connections * @see de.anomic.server.serverHandler#reset() */ public void reset() { this.session = null; this.userAddress = null; this.allowProxy = false; this.allowServer = false; this.proxyAccounts_init = false; this.serverAccountBase64MD5 = null; this.clientIP = null; this.prop.clear(); this.emptyRequestCount = 0; this.keepAliveRequestCount = 0; } /** * Must be called at least once, but can be called again to re-use the object. * @see de.anomic.server.serverHandler#initSession(de.anomic.server.serverCore.Session) */ public void initSession(serverCore.Session newsession) throws IOException { this.session = newsession; this.userAddress = session.userAddress; // client InetAddress this.clientIP = this.userAddress.getHostAddress(); if (this.userAddress.isAnyLocalAddress()) this.clientIP = "localhost"; if (this.clientIP.equals("0:0:0:0:0:0:0:1")) this.clientIP = "localhost"; if (this.clientIP.equals("127.0.0.1")) this.clientIP = "localhost"; String proxyClient = switchboard.getConfig("proxyClient", "*"); String serverClient = switchboard.getConfig("serverClient", "*"); this.allowProxy = (proxyClient.equals("*")) ? true : match(this.clientIP, proxyClient); this.allowServer = (serverClient.equals("*")) ? true : match(this.clientIP, serverClient); // check if we want to allow this socket to connect us if (!(this.allowProxy || this.allowServer)) { String errorMsg = "CONNECTION FROM " + this.clientIP + " FORBIDDEN"; this.log.logWarning(errorMsg); throw new IOException(errorMsg); } this.proxyAccounts_init = false; this.serverAccountBase64MD5 = null; } private static boolean match(String key, String latch) { // the latch is a comma-separated list of patterns // each pattern may contain one wildcard-character '*' which matches anything StringTokenizer st = new StringTokenizer(latch,","); String pattern; while (st.hasMoreTokens()) { pattern = st.nextToken(); if (key.matches(pattern)) return true; /* pos = pattern.indexOf("*"); if (pos < 0) { // no wild card: exact match if (key.equals(pattern)) return true; } else { // wild card: match left and right side of pattern if ((key.startsWith(pattern.substring(0, pos))) && (key.endsWith(pattern.substring(pos + 1)))) return true; } */ } return false; } public String greeting() { // OBLIGATORIC FUNCTION // a response line upon connection is send to client // if no response line is wanted, return "" or null return null; } public String error(Throwable e) { // OBLIGATORIC FUNCTION // return string in case of any error that occurs during communication // is always (but not only) called if an IO-dependent exception occurrs. this.log.logSevere("Unexpected Error. " + e.getClass().getName(),e); return "501 Exception occurred: " + e.getMessage(); } /** * This funciton is used to determine if a persistent connection was requested by the * client. * @param header the received http-headers * @return true if a persistent connection was requested or false otherwise */ private boolean handlePersistentConnection(httpHeader header) { if (!keepAliveSupport) { this.prop.put(httpHeader.CONNECTION_PROP_PERSISTENT,"close"); return false; } // getting the http version that is used by the client String httpVersion = this.prop.getProperty(httpHeader.CONNECTION_PROP_HTTP_VER, "HTTP/0.9"); // managing keep-alive: in HTTP/0.9 and HTTP/1.0 every connection is closed // afterwards. In HTTP/1.1 (and above, in the future?) connections are // persistent by default, but closed with the "Connection: close" // property. boolean persistent = !(httpVersion.equals("HTTP/0.9") || httpVersion.equals("HTTP/1.0")); if (((String)header.get(httpHeader.CONNECTION, "keep-alive")).toLowerCase().equals("close") || ((String)header.get(httpHeader.PROXY_CONNECTION, "keep-alive")).toLowerCase().equals("close")) { persistent = false; } // if the request does not contain a content-length we have to close the connection // independently of the value of the connection header if (persistent && this.prop.getProperty(httpHeader.CONNECTION_PROP_METHOD).equals(httpHeader.METHOD_POST) && !header.containsKey(httpHeader.CONTENT_LENGTH)) this.prop.put(httpHeader.CONNECTION_PROP_PERSISTENT,"close"); else this.prop.put(httpHeader.CONNECTION_PROP_PERSISTENT,persistent?"keep-alive":"close"); return persistent; } private boolean handleServerAuthentication(httpHeader header) throws IOException { // getting the http version that is used by the client String httpVersion = this.prop.getProperty(httpHeader.CONNECTION_PROP_HTTP_VER, "HTTP/0.9"); // reading the authentication settings from switchboard if (this.serverAccountBase64MD5 == null) this.serverAccountBase64MD5 = switchboard.getConfig("serverAccountBase64MD5", ""); if (this.serverAccountBase64MD5.length() > 0) { String auth = (String) header.get(httpHeader.AUTHORIZATION); if (auth == null) { // authorization requested, but no authorizeation given in header. Ask for authenticate: this.session.out.write((httpVersion + " 401 log-in required" + serverCore.crlfString + httpHeader.WWW_AUTHENTICATE + ": Basic realm=\"log-in\"" + serverCore.crlfString + serverCore.crlfString).getBytes()); this.session.out.write((httpHeader.CONTENT_LENGTH + ": 0\r\n").getBytes()); this.session.out.write("\r\n".getBytes()); return false; } else if (!this.serverAccountBase64MD5.equals(serverCodings.encodeMD5Hex(auth.trim().substring(6)))) { // wrong password given: ask for authenticate again serverLog.logInfo("HTTPD", "Wrong log-in for account 'server' in HTTPD.GET " + this.prop.getProperty("PATH") + " from IP " + this.clientIP); this.session.out.write((httpVersion + " 401 log-in required" + serverCore.crlfString + httpHeader.WWW_AUTHENTICATE + ": Basic realm=\"log-in\"" + serverCore.crlfString).getBytes()); this.session.out.write((httpHeader.CONTENT_LENGTH + ": 0\r\n").getBytes()); this.session.out.write("\r\n".getBytes()); return false; } } return true; } private boolean handleProxyAuthentication(httpHeader header) throws IOException { // getting the http version that is used by the client String httpVersion = this.prop.getProperty("HTTP", "HTTP/0.9"); // reading the authentication settings from switchboard if (this.proxyAccounts_init == false) { this.use_proxyAccounts = (switchboard.getConfig("use_proxyAccounts", "false").equals("true") ? true : false); this.proxyAccounts_init = true; // is initialised } if (this.use_proxyAccounts) { String auth = (String) header.get(httpHeader.PROXY_AUTHORIZATION,"xxxxxx"); userDB.Entry entry=switchboard.userDB.ipAuth(this.clientIP); if(entry == null){ entry=switchboard.userDB.proxyAuth(auth, this.clientIP); } if(entry != null){ if(entry.canSurf()){ return true; } serverObjects tp=new serverObjects(); tp.put("limit", "0");//time per day tp.put("limit_timelimit", entry.getTimeLimit()); sendRespondError(this.prop, this.session.out, 403, "Internet-Timelimit reached", new File("proxymsg/proxylimits.inc"), tp, null); return false; } // ask for authenticate this.session.out.write((httpVersion + " 407 Proxy Authentication Required" + serverCore.crlfString + httpHeader.PROXY_AUTHENTICATE + ": Basic realm=\"log-in\"" + serverCore.crlfString).getBytes()); this.session.out.write((httpHeader.CONTENT_LENGTH + ": 0\r\n").getBytes()); this.session.out.write("\r\n".getBytes()); return false; } return true; } public Boolean UNKNOWN(String requestLine) throws IOException { int pos; String unknownCommand = null, args = null; if ((pos = requestLine.indexOf(" ")) > 0) { unknownCommand = requestLine.substring(0,pos); args = requestLine.substring(pos+1); } else { unknownCommand = requestLine; args = ""; } parseRequestLine(unknownCommand, args); //String httpVersion = this.prop.getProperty(httpHeader.CONNECTION_PROP_HTTP_VER,"HTTP/0.9"); sendRespondError(this.prop,this.session.out,0,501,null,unknownCommand + " method not implemented",null); return serverCore.TERMINATE_CONNECTION; } public Boolean EMPTY(String arg) throws IOException { if (++this.emptyRequestCount > 10) return serverCore.TERMINATE_CONNECTION; return serverCore.RESUME_CONNECTION; } public Boolean TRACE(String arg) throws IOException { sendRespondError(this.prop,this.session.out,0,501,null,"TRACE method not implemented",null); return serverCore.TERMINATE_CONNECTION; } public Boolean OPTIONS(String arg) throws IOException { sendRespondError(this.prop,this.session.out,0,501,null,"OPTIONS method not implemented",null); return serverCore.TERMINATE_CONNECTION; } public Boolean GET(String arg) { try { // parsing the http request line parseRequestLine(httpHeader.METHOD_GET,arg); // we now know the HTTP version. depending on that, we read the header String httpVersion = this.prop.getProperty(httpHeader.CONNECTION_PROP_HTTP_VER, "HTTP/0.9"); httpHeader header = (httpVersion.equals("HTTP/0.9")) ? new httpHeader(reverseMappingCache) : httpHeader.readHeader(this.prop,this.session); // handling transparent proxy support httpHeader.handleTransparentProxySupport(header, this.prop, virtualHost, httpdProxyHandler.isTransparentProxy); // determines if the connection should be kept alive handlePersistentConnection(header); if (this.prop.getProperty(httpHeader.CONNECTION_PROP_HOST).equals(virtualHost)) { // pass to server if (this.allowServer) { /* * Handling SOAP Requests here ... */ if (this.prop.containsKey(httpHeader.CONNECTION_PROP_PATH) && this.prop.getProperty(httpHeader.CONNECTION_PROP_PATH).startsWith("/soap")) { if (soapHandler == null) { try { Class soapHandlerClass = Class.forName("de.anomic.soap.httpdSoapHandler"); Constructor classConstructor = soapHandlerClass.getConstructor( new Class[] { serverSwitch.class } ); soapHandler = (httpdHandler) classConstructor.newInstance(new Object[] { switchboard }); } catch (Exception e) { sendRespondHeader(this.prop,this.session.out,httpVersion,503,null); return serverCore.TERMINATE_CONNECTION; } catch (NoClassDefFoundError e) { sendRespondError(this.prop,this.session.out,4,503,null,"SOAP Extension not installed",null); return serverCore.TERMINATE_CONNECTION; } catch (Error e) { sendRespondHeader(this.prop,this.session.out,httpVersion,503,null); return serverCore.TERMINATE_CONNECTION; } } soapHandler.doGet(this.prop, header, this.session.out); /* * Handling HTTP requests here ... */ } else { if (this.handleServerAuthentication(header)) { if (fileHandler == null) fileHandler = new httpdFileHandler(switchboard); fileHandler.doGet(this.prop, header, this.session.out); } } } else { // not authorized through firewall blocking (ip does not match filter) this.session.out.write((httpVersion + " 403 refused (IP not granted)" + serverCore.crlfString + serverCore.crlfString + "you are not allowed to connect to this server, because you are using the non-granted IP " + clientIP + ". allowed are only connections that match with the following filter: " + switchboard.getConfig("serverClient", "*") + serverCore.crlfString).getBytes()); return serverCore.TERMINATE_CONNECTION; } } else { // pass to proxy if (this.allowProxy) { if (this.handleProxyAuthentication(header)) { if (proxyHandler != null) proxyHandler = new httpdProxyHandler(switchboard); proxyHandler.doGet(this.prop, header, this.session.out); } } else { // not authorized through firewall blocking (ip does not match filter) this.session.out.write((httpVersion + " 403 refused (IP not granted)" + serverCore.crlfString + serverCore.crlfString + "you are not allowed to connect to this proxy, because you are using the non-granted IP " + clientIP + ". allowed are only connections that match with the following filter: " + switchboard.getConfig("proxyClient", "*") + serverCore.crlfString).getBytes()); return serverCore.TERMINATE_CONNECTION; } } return this.prop.getProperty(httpHeader.CONNECTION_PROP_PERSISTENT).equals("keep-alive") ? serverCore.RESUME_CONNECTION : serverCore.TERMINATE_CONNECTION; } catch (Exception e) { logUnexpectedError(e); return serverCore.TERMINATE_CONNECTION; } finally { this.doUserAccounting(this.prop); } } private void logUnexpectedError(Exception e) { if (e instanceof InterruptedException) { this.log.logInfo("Interruption detected"); } else { String errorMsg = e.getMessage(); if (errorMsg != null) { if (errorMsg.startsWith("Socket closed")) { this.log.logInfo("httpd shutdown detected ..."); } else if ((errorMsg.startsWith("Broken pipe") || errorMsg.startsWith("Connection reset"))) { // client closed the connection, so we just end silently this.log.logInfo("Client unexpectedly closed connection"); } else { this.log.logSevere("Unexpected Error. " + e.getClass().getName() + ": " + e.getMessage(),e); } } else { this.log.logSevere("Unexpected Error. " + e.getClass().getName(),e); } } } public Boolean HEAD(String arg) { try { parseRequestLine(httpHeader.METHOD_HEAD,arg); // we now know the HTTP version. depending on that, we read the header httpHeader header; String httpVersion = this.prop.getProperty(httpHeader.CONNECTION_PROP_HTTP_VER, "HTTP/0.9"); if (httpVersion.equals("HTTP/0.9")) header = new httpHeader(reverseMappingCache); else header = httpHeader.readHeader(this.prop,this.session); // handle transparent proxy support httpHeader.handleTransparentProxySupport(header, this.prop, virtualHost, httpdProxyHandler.isTransparentProxy); // determines if the connection should be kept alive handlePersistentConnection(header); // return multi-line message if (this.prop.getProperty("HOST").equals(virtualHost)) { // pass to server if (allowServer) { if (handleServerAuthentication(header)) { if (fileHandler == null) fileHandler = new httpdFileHandler(switchboard); fileHandler.doHead(prop, header, this.session.out); } } else { // not authorized through firewall blocking (ip does not match filter) session.out.write((httpVersion + " 403 refused (IP not granted)" + serverCore.crlfString).getBytes()); return serverCore.TERMINATE_CONNECTION; } } else { // pass to proxy if (allowProxy) { if (handleProxyAuthentication(header)) { if (proxyHandler != null) proxyHandler = new httpdProxyHandler(switchboard); proxyHandler.doHead(prop, header, this.session.out); } } else { // not authorized through firewall blocking (ip does not match filter) session.out.write((httpVersion + " 403 refused (IP not granted)" + serverCore.crlfString).getBytes()); return serverCore.TERMINATE_CONNECTION; } } return this.prop.getProperty(httpHeader.CONNECTION_PROP_PERSISTENT).equals("keep-alive") ? serverCore.RESUME_CONNECTION : serverCore.TERMINATE_CONNECTION; } catch (Exception e) { logUnexpectedError(e); return serverCore.TERMINATE_CONNECTION; } finally { this.doUserAccounting(this.prop); } } public Boolean POST(String arg) { try { parseRequestLine(httpHeader.METHOD_POST,arg); // we now know the HTTP version. depending on that, we read the header httpHeader header; String httpVersion = prop.getProperty("HTTP", "HTTP/0.9"); if (httpVersion.equals("HTTP/0.9")) header = new httpHeader(reverseMappingCache); else header = httpHeader.readHeader(this.prop,this.session); // handle transparent proxy support httpHeader.handleTransparentProxySupport(header, this.prop, virtualHost, httpdProxyHandler.isTransparentProxy); // determines if the connection should be kept alive handlePersistentConnection(header); // return multi-line message if (prop.getProperty("HOST").equals(virtualHost)) { // pass to server if (allowServer) { /* * Handling SOAP Requests here ... */ if (this.prop.containsKey("PATH") && this.prop.getProperty("PATH").startsWith("/soap")) { if (soapHandler == null) { try { // creating the soap handler class by name Class soapHandlerClass = Class.forName("de.anomic.soap.httpdSoapHandler"); // Look for the proper constructor Constructor soapHandlerConstructor = soapHandlerClass.getConstructor( new Class[] { serverSwitch.class } ); // creating the new object soapHandler = (httpdHandler)soapHandlerConstructor.newInstance( new Object[] { switchboard } ); } catch (Exception e) { sendRespondHeader(this.prop,this.session.out,httpVersion,503,null); return serverCore.TERMINATE_CONNECTION; } catch (NoClassDefFoundError e) { sendRespondError(this.prop,this.session.out,4,503,"SOAP Extension not installed","SOAP Extension not installed",null); return serverCore.TERMINATE_CONNECTION; } catch (Error e) { sendRespondHeader(this.prop,this.session.out,httpVersion,503,null); return serverCore.TERMINATE_CONNECTION; } } soapHandler.doPost(prop, header, this.session.out, this.session.in); /* * Handling normal HTTP requests here ... */ } else { if (handleServerAuthentication(header)) { if (fileHandler == null) fileHandler = new httpdFileHandler(switchboard); fileHandler.doPost(prop, header, this.session.out, this.session.in); } } } else { // not authorized through firewall blocking (ip does not match filter) session.out.write((httpVersion + " 403 refused (IP not granted)" + serverCore.crlfString + serverCore.crlfString + "you are not allowed to connect to this server, because you are using the non-granted IP " + clientIP + ". allowed are only connections that match with the following filter: " + switchboard.getConfig("serverClient", "*") + serverCore.crlfString).getBytes()); return serverCore.TERMINATE_CONNECTION; } } else { // pass to proxy if (allowProxy) { if (handleProxyAuthentication(header)) { if (proxyHandler != null) proxyHandler = new httpdProxyHandler(switchboard); proxyHandler.doPost(prop, header, this.session.out, this.session.in); } } else { // not authorized through firewall blocking (ip does not match filter) session.out.write((httpVersion + " 403 refused (IP not granted)" + serverCore.crlfString + serverCore.crlfString + "you are not allowed to connect to this proxy, because you are using the non-granted IP " + clientIP + ". allowed are only connections that match with the following filter: " + switchboard.getConfig("proxyClient", "*") + serverCore.crlfString).getBytes()); return serverCore.TERMINATE_CONNECTION; } } //return serverCore.RESUME_CONNECTION; return this.prop.getProperty(httpHeader.CONNECTION_PROP_PERSISTENT).equals("keep-alive") ? serverCore.RESUME_CONNECTION : serverCore.TERMINATE_CONNECTION; } catch (Exception e) { logUnexpectedError(e); return serverCore.TERMINATE_CONNECTION; } finally { this.doUserAccounting(this.prop); } } public Boolean CONNECT(String arg) throws IOException { // establish a ssh-tunneled http connection // this is to support https // parse HTTP version int pos = arg.indexOf(" "); String httpVersion = "HTTP/1.0"; if (pos >= 0) { httpVersion = arg.substring(pos + 1); arg = arg.substring(0, pos); } prop.setProperty(httpHeader.CONNECTION_PROP_HTTP_VER, httpVersion); // parse hostname and port prop.setProperty(httpHeader.CONNECTION_PROP_HOST, arg); pos = arg.indexOf(":"); int port = 443; if (pos >= 0) { port = Integer.parseInt(arg.substring(pos + 1)); arg = arg.substring(0, pos); } // setting other connection properties prop.setProperty(httpHeader.CONNECTION_PROP_CLIENTIP, this.clientIP); prop.setProperty(httpHeader.CONNECTION_PROP_METHOD, httpHeader.METHOD_CONNECT); prop.setProperty(httpHeader.CONNECTION_PROP_PATH, "/"); prop.setProperty(httpHeader.CONNECTION_PROP_EXT, ""); prop.setProperty(httpHeader.CONNECTION_PROP_URL, ""); // parse remaining lines httpHeader header = httpHeader.readHeader(this.prop,this.session); if (!(allowProxy)) { // not authorized through firewall blocking (ip does not match filter) session.out.write((httpVersion + " 403 refused (IP not granted)" + serverCore.crlfString + serverCore.crlfString + "you are not allowed to connect to this proxy, because you are using the non-granted IP " + clientIP + ". allowed are only connections that match with the following filter: " + switchboard.getConfig("proxyClient", "*") + serverCore.crlfString).getBytes()); return serverCore.TERMINATE_CONNECTION; } if (port != 443 && switchboard.getConfig("secureHttps", "true").equals("true")) { // security: connection only to ssl port // we send a 403 (forbidden) error back session.out.write((httpVersion + " 403 Connection to non-443 forbidden" + serverCore.crlfString + serverCore.crlfString).getBytes()); return serverCore.TERMINATE_CONNECTION; } // pass to proxy if (allowProxy) { if (handleProxyAuthentication(header)) { if (proxyHandler != null) proxyHandler = new httpdProxyHandler(switchboard); proxyHandler.doConnect(prop, header, this.session.in, this.session.out); } } else { // not authorized through firewall blocking (ip does not match filter) session.out.write((httpVersion + " 403 refused (IP not granted)" + serverCore.crlfString + serverCore.crlfString + "you are not allowed to connect to this proxy, because you are using the non-granted IP " + clientIP + ". allowed are only connections that match with the following filter: " + switchboard.getConfig("proxyClient", "*") + serverCore.crlfString).getBytes()); } return serverCore.TERMINATE_CONNECTION; } private final void parseRequestLine(String cmd, String s) { // parsing the header httpHeader.parseRequestLine(cmd,s,this.prop,virtualHost); // reseting the empty request counter this.emptyRequestCount = 0; // counting the amount of received requests within this permanent conneciton this.prop.setProperty(httpHeader.CONNECTION_PROP_KEEP_ALIVE_COUNT, Integer.toString(++this.keepAliveRequestCount)); // setting the client-IP this.prop.setProperty(httpHeader.CONNECTION_PROP_CLIENTIP, this.clientIP); } // some static methods that needs to be used from any CGI // and also by the httpdFileHandler // but this belongs to the protocol handler, this class. public static int parseArgs(serverObjects args, InputStream in, int length) throws IOException { // this is a quick hack using a previously coded parseMultipart based on a buffer // should be replaced sometime by a 'right' implementation byte[] buffer = null; // parsing post request bodies with a given length if (length != -1) { buffer = new byte[length]; in.read(buffer); // parsing post request bodies which are gzip content-encoded } else { ByteArrayOutputStream bout = new ByteArrayOutputStream(); serverFileUtils.copy(in,bout); buffer = bout.toByteArray(); bout.close(); bout = null; } int argc = parseArgs(args, new String(buffer, "UTF-8")); buffer = null; return argc; } public static int parseArgs(serverObjects args, String argsString) { // this parses a arg string that can either be attached to a URL query // or can be given as result of a post method // the String argsString is supposed to be constructed as // ='&'='&'= // the calling function must strip off a possible leading '?' char if (argsString.length() == 0) return 0; argsString = argsString + "&"; // for technical reasons int sep; int eqp; int argc = 0; // Textfield1=default+value+Textfield+1&Textfield2=default+value+Textfield+2&selection1=sel1&selection2=othervalue1&selection2=sel2&selection3=sel3&Menu1=SubEnry11&radio1=button1&check1=button2&check1=button3&hidden1=&sButton1=enter+%281%29 while (argsString.length() > 0) { eqp = argsString.indexOf("="); sep = argsString.indexOf("&"); if ((eqp <= 0) || (sep <= 0)) break; // resulting equations are inserted into the property args with leading '&' args.put(parseArg(argsString.substring(0, eqp)), parseArg(argsString.substring(eqp + 1, sep))); argsString = argsString.substring(sep + 1); argc++; } // we return the number of parsed arguments return argc; } private static String parseArg(String s) { // this parses a given value-string from a http property // we replace all "+" by spaces // and resolve %-escapes with two-digit hex attributes int pos = 0; ByteArrayOutputStream baos = new ByteArrayOutputStream(s.length()); while (pos < s.length()) { if (s.charAt(pos) == '+') { baos.write(' '); pos++; } else if (s.charAt(pos) == '%') { baos.write(Integer.parseInt(s.substring(pos + 1, pos + 3), 16)); pos += 3; } else { baos.write(s.charAt(pos++)); } } String result; try { result = new String(baos.toByteArray(), "UTF-8"); } catch (UnsupportedEncodingException e) { return null; } return result; } public static HashMap parseMultipart(httpHeader header, serverObjects args, InputStream in, int length) throws IOException { // this is a quick hack using a previously coded parseMultipart based on a buffer // should be replaced sometime by a 'right' implementation byte[] buffer = null; // parsing post request bodies with a given length if (length != -1) { buffer = new byte[length]; int c, a = 0; while (a < length) { c = in.read(buffer, a, length - a); if (c <= 0) break; a += c; } // parsing post request bodies which are gzip content-encoded } else { serverByteBuffer bout = new serverByteBuffer(); serverFileUtils.copy(in,bout); buffer = bout.toByteArray(); bout.close(); bout = null; } //System.out.println("MULTIPART-BUFFER=" + new String(buffer)); HashMap files = parseMultipart(header, args, buffer); buffer = null; return files; } public static HashMap parseMultipart(httpHeader header, serverObjects args, byte[] buffer) throws IOException { // we parse a multipart message and put results into the properties // find/identify boundary marker //System.out.println("DEBUG parseMultipart = <<" + new String(buffer) + ">>"); String s = (String) header.get(httpHeader.CONTENT_TYPE); if (s == null) return null; int q; int p = s.toLowerCase().indexOf("boundary="); if (p < 0) throw new IOException("boundary marker in multipart not found"); // boundaries start with additional leading "--", see RFC1867 byte[] boundary = ("--" + s.substring(p + 9)).getBytes(); // eat up first boundary // the buffer must start with a boundary byte[] line = readLine(0, buffer); int pos = nextPos; if ((line == null) || (!(equals(line, 0, boundary, 0, boundary.length)))) throw new IOException("boundary not recognized: " + ((line == null) ? "NULL" : new String(line, "UTF-8")) + ", boundary = " + new String(boundary)); // we need some constants byte[] namec = (new String("name=")).getBytes(); byte[] filenamec = (new String("filename=")).getBytes(); //byte[] semicolonc = (new String(";")).getBytes(); byte[] quotec = new byte[] {(byte) '"'}; // now loop over boundaries byte [] name; byte [] filename; HashMap files = new HashMap(); int argc = 0; //System.out.println("DEBUG: parsing multipart body:" + new String(buffer)); while (pos < buffer.length) { // boundary enumerator // here the 'pos' marker points to the first line in a section after a boundary line line = readLine(pos, buffer); pos = nextPos; // termination if line is empty if (line.length == 0) break; // find name tag in line p = indexOf(0, line, namec); if (p < 0) throw new IOException("tag name in marker section not found: '" + new String(line, "UTF-8") + "'"); // a name tag must always occur p += namec.length + 1; // first position of name value q = indexOf(p, line, quotec); if (q < 0) throw new IOException("missing quote in name tag: '" + new String(line, "UTF-8") + "'"); name = new byte[q - p]; java.lang.System.arraycopy(line, p, name, 0, q - p); // if this line has also a filename attribute, read it p = indexOf(q, line, filenamec); if (p > 0) { p += filenamec.length + 1; // first position of name value q = indexOf(p, line, quotec); if (q < 0) throw new IOException("missing quote in filename tag: '" + new String(line) + "'"); filename = new byte[q - p]; java.lang.System.arraycopy(line, p, filename, 0, q - p); } else filename = null; // we have what we need. more information lines may follow, but we omit parsing them // we just skip until an empty line is reached while (pos < buffer.length) { // line skiping line = readLine(pos, buffer); pos = nextPos; if ((line == null) || (line.length == 0)) break; } // depending on the filename tag exsistence, read now either a value for the name // or a complete uploaded file // to know the exact length of the value, we must identify the next boundary p = indexOf(pos, buffer, boundary); // if we can't find another boundary, then this is an error in the input if (p < 0) { serverLog.logSevere("HTTPD", "ERROR in PUT body: no ending boundary. probably missing values"); break; } // we don't know if the value is terminated by lf, cr or crlf // (it's suppose to be crlf, but we want to be lazy about wrong terminations) if (buffer[p - 2] == serverCore.cr) // ERROR: IndexOutOfBounds: -2 /* crlf */ q = p - 2; else /* cr or lf only */ q = p - 1; // the above line is wrong if we uploaded a file that has a cr as it's last byte // and the client's line termination symbol is only a cr or lf (which would be incorrect) // the value is between 'pos' and 'q', while the next marker is 'p' line = new byte[q - pos]; java.lang.System.arraycopy(buffer, pos, line, 0, q - pos); // in the 'line' variable we have now either a normal value or an uploadef file if (filename == null) { args.put(new String(name, "UTF-8"), new String(line, "UTF-8")); } else { // we store the file in a hashtable. // we use the same key to address the file in the hashtable as we // use to address the filename in the properties, but without leading '&' args.put(new String(name, "UTF-8"), new String(filename, "UTF-8")); files.put(new String(name, "UTF-8"), line); } argc++; // finally, read the next boundary line line = readLine(p, buffer); pos = nextPos; } header.put("ARGC", Integer.toString(argc)); // store argument count return files; } /* ------------1090358578442 Content-Disposition: form-data; name="youare" Ty2F86ekSWM5 ------------1090358578442 Content-Disposition: form-data; name="key" 6EkPPOl7 ------------1090358578442 Content-Disposition: form-data; name="iam" HnTvzwV7SCJR ------------1090358578442 Content-Disposition: form-data; name="process" permission ------------1090358578442 */ static int nextPos = -1; private static byte[] readLine(int start, byte[] array) { // read a string from an array; line ending is always CRLF // but we are also fuzzy with that: may also be only CR or LF // if no remaining cr, crlf or lf can be found, return null if (start > array.length) return null; int pos = indexOf(start, array, serverCore.crlf); nextPos = pos + 2; if (pos < 0) {pos = indexOf(start, array, new byte[] {serverCore.cr}); nextPos = pos + 1;} if (pos < 0) {pos = indexOf(start, array, new byte[] {serverCore.lf}); nextPos = pos + 1;} if (pos < 0) {nextPos = start; return null;} byte[] result = new byte[pos - start]; java.lang.System.arraycopy(array, start, result, 0, pos - start); return result; } public static int indexOf(int start, byte[] array, byte[] pattern) { // return a position of a pattern in an array if (start > array.length - pattern.length) return -1; if (pattern.length == 0) return start; for (int pos = start; pos <= array.length - pattern.length; pos++) if ((array[pos] == pattern[0]) && (equals(array, pos, pattern, 0, pattern.length))) return pos; return -1; } public static boolean equals(byte[] a, int aoff, byte[] b, int boff, int len) { //System.out.println("equals: a = " + new String(a) + ", aoff = " + aoff + ", b = " + new String(b) + ", boff = " + boff + ", length = " + len); if ((aoff + len > a.length) || (boff + len > b.length)) return false; for (int i = 0; i < len; i++) if (a[aoff + i] != b[boff + i]) return false; //System.out.println("TRUE!"); return true; } public Object clone() { return new httpd(switchboard, new httpdFileHandler(switchboard), new httpdProxyHandler(switchboard)); } public static final void sendRespondBody( Properties conProp, OutputStream respond, byte[] body ) throws IOException { respond.write(body); respond.flush(); } public static final void sendRespondError( Properties conProp, OutputStream respond, int errorcase, int httpStatusCode, String httpStatusText, String detailedErrorMsg, Exception stackTrace ) throws IOException { sendRespondError( conProp, respond, errorcase, httpStatusCode, httpStatusText, detailedErrorMsg, null, null, stackTrace ); } public static final void sendRespondError( Properties conProp, OutputStream respond, int httpStatusCode, String httpStatusText, File detailedErrorMsgFile, serverObjects detailedErrorMsgValues, Exception stackTrace ) throws IOException { sendRespondError( conProp, respond, 5, httpStatusCode, httpStatusText, null, detailedErrorMsgFile, detailedErrorMsgValues, stackTrace ); } private static final void sendRespondError( Properties conProp, OutputStream respond, int errorcase, int httpStatusCode, String httpStatusText, String detailedErrorMsgText, Object detailedErrorMsgFile, serverObjects detailedErrorMsgValues, Exception stackTrace ) throws IOException { FileInputStream fis = null; ByteArrayOutputStream o = null; try { // setting the proper http status message String httpVersion = conProp.getProperty(httpHeader.CONNECTION_PROP_HTTP_VER,"HTTP/1.1"); if ((httpStatusText == null)||(httpStatusText.length()==0)) { if (httpVersion.equals("HTTP/1.0") && httpHeader.http1_0.containsKey(Integer.toString(httpStatusCode))) httpStatusText = (String) httpHeader.http1_0.get(Integer.toString(httpStatusCode)); else if (httpVersion.equals("HTTP/1.1") && httpHeader.http1_1.containsKey(Integer.toString(httpStatusCode))) httpStatusText = (String) httpHeader.http1_1.get(Integer.toString(httpStatusCode)); else httpStatusText = "Unknown"; } // generating the desired request url String host = conProp.getProperty(httpHeader.CONNECTION_PROP_HOST); String path = conProp.getProperty(httpHeader.CONNECTION_PROP_PATH,"/"); String args = conProp.getProperty(httpHeader.CONNECTION_PROP_ARGS); String method = conProp.getProperty(httpHeader.CONNECTION_PROP_METHOD); int port = 80, pos = host.indexOf(":"); if (pos != -1) { port = Integer.parseInt(host.substring(pos + 1)); host = host.substring(0, pos); } String urlString; try { urlString = (new URL((method.equals(httpHeader.METHOD_CONNECT)?"https":"http"), host, port, (args == null) ? path : path + "?" + args)).toString(); } catch (MalformedURLException e) { urlString = "invalid URL"; } // set rewrite values serverObjects tp = new serverObjects(); // tp.put("host", serverCore.publicIP().getHostAddress()); // tp.put("port", switchboard.getConfig("port", "8080")); String clientIP = conProp.getProperty(httpHeader.CONNECTION_PROP_CLIENTIP,"127.0.0.1"); // check if ip is local ip address InetAddress hostAddress = httpc.dnsResolve(clientIP); if (hostAddress == null) { tp.put("host", serverCore.publicLocalIP().getHostAddress()); tp.put("port", switchboard.getConfig("port", "8080")); } else if (hostAddress.isSiteLocalAddress() || hostAddress.isLoopbackAddress()) { tp.put("host", serverCore.publicLocalIP().getHostAddress()); tp.put("port", switchboard.getConfig("port", "8080")); } else { tp.put("host", serverCore.publicIP()); tp.put("port", (serverCore.portForwardingEnabled && (serverCore.portForwarding != null)) ? Integer.toString(serverCore.portForwarding.getPort()) : switchboard.getConfig("port", "8080")); } tp.put("peerName", yacyCore.seedDB.mySeed.getName()); tp.put("errorMessageType", errorcase); tp.put("httpStatus", Integer.toString(httpStatusCode) + " " + httpStatusText); tp.put("requestMethod", conProp.getProperty(httpHeader.CONNECTION_PROP_METHOD)); tp.put("requestURL", urlString); switch (errorcase) { case 4: tp.put("errorMessageType_detailedErrorMsg",(detailedErrorMsgText==null)?"":detailedErrorMsgText.replaceAll("\n","
")); break; case 5: tp.put("errorMessageType_file",(detailedErrorMsgFile==null)?"":detailedErrorMsgFile); if ((detailedErrorMsgValues != null)&&(detailedErrorMsgValues.size()>0)) { // rewriting the value-names and add the proper name prefix: Iterator nameIter = detailedErrorMsgValues.keySet().iterator(); while (nameIter.hasNext()) { String name = (String) nameIter.next(); tp.put("errorMessageType_" + name,detailedErrorMsgValues.get(name)); } } break; default: break; } // building the stacktrace if (stackTrace != null) { tp.put("printStackTrace",1); serverByteBuffer errorMsg = new serverByteBuffer(100); errorMsg.append("Exception occurred: ") .append(stackTrace.toString()) .append("\r\n\r\n") .append("TRACE:\r\n"); stackTrace.printStackTrace(new PrintStream(errorMsg)); errorMsg.append("\r\n"); tp.put("printStackTrace_stacktrace",errorMsg.toString().replaceAll("\n","
")); } else { tp.put("printStackTrace",0); } // Generated Tue, 23 Aug 2005 11:19:14 GMT by brain.wg (squid/2.5.STABLE3) // adding some system information String systemDate = httpc.dateString(httpc.nowDate()); tp.put("date",systemDate); // rewrite the file File htRootPath = new File(switchboard.getRootPath(), switchboard.getConfig("htRootPath","htroot")); httpTemplate.writeTemplate( fis = new FileInputStream(new File(htRootPath, "/proxymsg/error.html")), o = new ByteArrayOutputStream(), tp, "-UNRESOLVED_PATTERN-".getBytes() ); byte[] result = o.toByteArray(); o.close(); o = null; httpHeader header = new httpHeader(); header.put(httpHeader.DATE, systemDate); header.put(httpHeader.CONTENT_TYPE, "text/html"); header.put(httpHeader.CONTENT_LENGTH, Integer.toString(result.length)); header.put(httpHeader.PRAGMA, "no-cache"); sendRespondHeader(conProp,respond,httpVersion,httpStatusCode,httpStatusText,header); // write the array to the client serverFileUtils.write(result, respond); respond.flush(); } catch (Exception e) { throw new IOException(e.getMessage()); } finally { if (fis != null) try { fis.close(); } catch (Exception e) {} if (o != null) try { o.close(); } catch (Exception e) {} } } public static final void sendRespondHeader( Properties conProp, OutputStream respond, String httpVersion, int httpStatusCode, String httpStatusText, long contentLength ) throws IOException { sendRespondHeader(conProp,respond,httpVersion,httpStatusCode,httpStatusText,null,contentLength,null,null,null,null,null); } public static final void sendRespondHeader( Properties conProp, OutputStream respond, String httpVersion, int httpStatusCode, String httpStatusText, String contentType, long contentLength, Date moddate, Date expires, httpHeader headers, String contentEnc, String transferEnc ) throws IOException { sendRespondHeader(conProp,respond,httpVersion,httpStatusCode,httpStatusText,contentType,contentLength,moddate,expires,headers,contentEnc,transferEnc,true); } public static final void sendRespondHeader( Properties conProp, OutputStream respond, String httpVersion, int httpStatusCode, String httpStatusText, String contentType, long contentLength, Date moddate, Date expires, httpHeader headers, String contentEnc, String transferEnc, boolean nocache ) throws IOException { String reqMethod = conProp.getProperty(httpHeader.CONNECTION_PROP_METHOD); if ((transferEnc != null) && !httpVersion.equals(httpHeader.HTTP_VERSION_1_1)) { throw new IllegalArgumentException("Transfer encoding is only supported for http/1.1 connections."); } if (reqMethod.equals(httpHeader.METHOD_HEAD)) { if (contentLength >= 0) { throw new IllegalArgumentException("Http HEAD response messages MUST NOT contain a content-length."); } } if (!reqMethod.equals(httpHeader.METHOD_HEAD)){ if (!conProp.getProperty(httpHeader.CONNECTION_PROP_PERSISTENT,"close").equals("close")) { if (transferEnc == null && contentLength < 0) { throw new IllegalArgumentException("Message MUST contain a Content-Length or a non-identity transfer-coding heder field."); } } if (transferEnc != null && contentLength >= 0) { throw new IllegalArgumentException("Messages MUST NOT include both a Content-Length header field and a non-identity transfer-coding."); } } if(headers==null) headers = new httpHeader(); Date now = new Date(System.currentTimeMillis()); headers.put(httpHeader.SERVER, "AnomicHTTPD (www.anomic.de)"); headers.put(httpHeader.DATE, httpc.dateString(now)); if (moddate.after(now)) moddate = now; headers.put(httpHeader.LAST_MODIFIED, httpc.dateString(moddate)); if (nocache) { if (httpVersion.toUpperCase().equals(httpHeader.HTTP_VERSION_1_1)) headers.put(httpHeader.CACHE_CONTROL, "no-cache"); else headers.put(httpHeader.PRAGMA, "no-cache"); } headers.put(httpHeader.CONTENT_TYPE, (contentType == null)? "text/html" : contentType); if (contentLength > 0) headers.put(httpHeader.CONTENT_LENGTH, Long.toString(contentLength)); //if (cookie != null) headers.put(httpHeader.SET_COOKIE, cookie); if (expires != null) headers.put(httpHeader.EXPIRES, httpc.dateString(expires)); if (contentEnc != null) headers.put(httpHeader.CONTENT_ENCODING, contentEnc); if (transferEnc != null) headers.put(httpHeader.TRANSFER_ENCODING, transferEnc); sendRespondHeader(conProp, respond, httpVersion, httpStatusCode, httpStatusText, headers); } public static final void sendRespondHeader( Properties conProp, OutputStream respond, String httpVersion, int httpStatusCode, httpHeader header ) throws IOException { sendRespondHeader(conProp,respond,httpVersion,httpStatusCode,null,header); } public static final void sendRespondHeader( Properties conProp, OutputStream respond, String httpVersion, int httpStatusCode, String httpStatusText, httpHeader header ) throws IOException { if (respond == null) throw new NullPointerException("The outputstream must not be null."); if (conProp == null) throw new NullPointerException("The connection property structure must not be null."); if (httpVersion == null) httpVersion = conProp.getProperty(httpHeader.CONNECTION_PROP_HTTP_VER,"HTTP/1.1"); if (header == null) header = new httpHeader(); try { if ((httpStatusText == null)||(httpStatusText.length()==0)) { if (httpVersion.equals(httpHeader.HTTP_VERSION_1_0) && httpHeader.http1_0.containsKey(Integer.toString(httpStatusCode))) httpStatusText = (String) httpHeader.http1_0.get(Integer.toString(httpStatusCode)); else if (httpVersion.equals(httpHeader.HTTP_VERSION_1_1) && httpHeader.http1_1.containsKey(Integer.toString(httpStatusCode))) httpStatusText = (String) httpHeader.http1_1.get(Integer.toString(httpStatusCode)); else httpStatusText = "Unknown"; } StringBuffer headerStringBuffer = new StringBuffer(560); // write status line headerStringBuffer.append(httpVersion).append(" ") .append(Integer.toString(httpStatusCode)).append(" ") .append(httpStatusText).append("\r\n"); // "HTTP/0.9" does not have a header in the response if (! httpVersion.toUpperCase().equals("HTTP/0.9")) { // prepare header if (!header.containsKey(httpHeader.DATE)) header.put(httpHeader.DATE, httpc.dateString(httpc.nowDate())); if (!header.containsKey(httpHeader.CONTENT_TYPE)) header.put(httpHeader.CONTENT_TYPE, "text/html"); // fix this if (!header.containsKey(httpHeader.CONNECTION) && conProp.containsKey(httpHeader.CONNECTION_PROP_PERSISTENT)) header.put(httpHeader.CONNECTION, conProp.getProperty(httpHeader.CONNECTION_PROP_PERSISTENT)); if (!header.containsKey(httpHeader.PROXY_CONNECTION) && conProp.containsKey(httpHeader.CONNECTION_PROP_PERSISTENT)) header.put(httpHeader.PROXY_CONNECTION, conProp.getProperty(httpHeader.CONNECTION_PROP_PERSISTENT)); if (conProp.containsKey(httpHeader.CONNECTION_PROP_PERSISTENT) && conProp.getProperty(httpHeader.CONNECTION_PROP_PERSISTENT).equals("keep-alive") && !header.containsKey(httpHeader.TRANSFER_ENCODING) && !header.containsKey(httpHeader.CONTENT_LENGTH)) header.put(httpHeader.CONTENT_LENGTH, "0"); // adding some yacy specific headers header.put(httpHeader.X_YACY_KEEP_ALIVE_REQUEST_COUNT,conProp.getProperty(httpHeader.CONNECTION_PROP_KEEP_ALIVE_COUNT)); header.put(httpHeader.X_YACY_ORIGINAL_REQUEST_LINE,conProp.getProperty(httpHeader.CONNECTION_PROP_REQUESTLINE)); header.put(httpHeader.X_YACY_PREVIOUS_REQUEST_LINE,conProp.getProperty(httpHeader.CONNECTION_PROP_PREV_REQUESTLINE)); //read custom headers /* if (requestProperties != null) { httpHeader outgoingHeader=requestProperties.getOutgoingHeader(); if (outgoingHeader!=null) {*/ Iterator it=header.getCookies(); while(it.hasNext()) { //Append user properties to the main String //TODO: Should we check for user properites. What if they intersect properties that are already in header? java.util.Map.Entry e=(java.util.Map.Entry)it.next(); headerStringBuffer.append(e.getKey()).append(": ").append(e.getValue()).append("\r\n"); } /* } }*/ // write header Iterator i = header.keySet().iterator(); String key; char tag; int count; //System.out.println("vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv"); while (i.hasNext()) { key = (String) i.next(); tag = key.charAt(0); if ((tag != '*') && (tag != '#')) { // '#' in key is reserved for proxy attributes as artificial header values count = header.keyCount(key); for (int j = 0; j < count; j++) { headerStringBuffer.append(key).append(": ").append((String) header.getSingle(key, j)).append("\r\n"); } //System.out.println("#" + key + ": " + value); } } } // end header headerStringBuffer.append("\r\n"); // sending headers to the client respond.write(headerStringBuffer.toString().getBytes()); // flush stream respond.flush(); conProp.put(httpHeader.CONNECTION_PROP_PROXY_RESPOND_HEADER,header); conProp.put(httpHeader.CONNECTION_PROP_PROXY_RESPOND_STATUS,Integer.toString(httpStatusCode)); } catch (Exception e) { // any interruption may be caused be network error or because the user has closed // the windows during transmission. We simply pass it as IOException throw new IOException(e.getMessage()); } } public static boolean shallTransportZipped(String path) { if ((path == null) || (path.length() == 0)) return true; int pos; if ((pos = path.lastIndexOf(".")) != -1) { return !disallowZippedContentEncoding.contains(path.substring(pos).toLowerCase()); } return true; } public void doUserAccounting(Properties conProps) { // TODO: validation of conprop fields // httpHeader.CONNECTION_PROP_USER // httpHeader.CONNECTION_PROP_CLIENTIP // httpHeader.CONNECTION_PROP_PROXY_RESPOND_SIZE // httpHeader.CONNECTION_PROP_PROXY_RESPOND_STATUS } public static boolean isThisHostPortForwardingIP(String hostName) { if ((hostName == null) || (hostName.length() == 0)) return false; if ((!serverCore.portForwardingEnabled) || (serverCore.portForwarding == null)) return false; boolean isThisHostIP = false; try { //InetAddress hostAddress = InetAddress.getByName(hostName); InetAddress hostAddress = httpc.dnsResolve(hostName); //InetAddress forwardingAddress = InetAddress.getByName(serverCore.portForwarding.getHost()); InetAddress forwardingAddress = httpc.dnsResolve(serverCore.portForwarding.getHost()); if ((hostAddress==null)||(forwardingAddress==null)) return false; if (hostAddress.equals(forwardingAddress)) return true; } catch (Exception e) {} return isThisHostIP; } public static boolean isThisHostIP(String hostName) { if ((hostName == null) || (hostName.length() == 0)) return false; boolean isThisHostIP = false; try { // final InetAddress clientAddress = InetAddress.getByName(hostName); final InetAddress clientAddress = httpc.dnsResolve(hostName); if (clientAddress == null) return false; if (clientAddress.isAnyLocalAddress() || clientAddress.isLoopbackAddress()) return true; final InetAddress[] localAddress = InetAddress.getAllByName(InetAddress.getLocalHost().getHostName()); for (int i=0; i