/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source 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.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.servlets.ssi;
import java.util.Locale;
import com.caucho.VersionFactory;
import com.caucho.util.Alarm;
import com.caucho.util.IntMap;
import com.caucho.util.QDate;
import com.caucho.vfs.Path;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Represents a SSI variable
*/
public class VarExpr extends SSIExpr {
private static final int ATTRIBUTE = 0;
private static final int HTTP_ = ATTRIBUTE + 1;
private static final int SERVER_SOFTWARE = HTTP_ + 1;
private static final int SERVER_NAME = SERVER_SOFTWARE + 1;
private static final int SERVER_ADDR = SERVER_NAME + 1;
private static final int SERVER_PORT = SERVER_ADDR + 1;
private static final int REMOTE_ADDR = SERVER_PORT + 1;
private static final int REMOTE_PORT = REMOTE_ADDR + 1;
private static final int REMOTE_USER = REMOTE_PORT + 1;
private static final int AUTH_TYPE = REMOTE_USER + 1;
private static final int GATEWAY_INTERFACE = AUTH_TYPE + 1;
private static final int SERVER_PROTOCOL = GATEWAY_INTERFACE + 1;
private static final int REQUEST_METHOD = SERVER_PROTOCOL + 1;
private static final int QUERY_STRING = REQUEST_METHOD + 1;
private static final int REQUEST_URI = QUERY_STRING + 1;
private static final int SCRIPT_FILENAME = REQUEST_URI + 1;
private static final int SCRIPT_NAME = SCRIPT_FILENAME + 1;
private static final int PATH_INFO = SCRIPT_NAME + 1;
private static final int PATH_TRANSLATED = PATH_INFO + 1;
private static final int CONTENT_LENGTH = PATH_TRANSLATED + 1;
private static final int CONTENT_TYPE = CONTENT_LENGTH + 1;
private static final int DATE_GMT = CONTENT_TYPE + 1;
private static final int DATE_LOCAL = DATE_GMT + 1;
private static final int DOCUMENT_NAME = DATE_LOCAL + 1;
private static final int DOCUMENT_URI = DOCUMENT_NAME + 1;
private static final int LAST_MODIFIED = DOCUMENT_URI + 1;
private static final int USER_NAME = LAST_MODIFIED + 1;
private static final IntMap _varMap = new IntMap();
private final int _code;
private final String _var;
private final Path _path;
VarExpr(String var, Path path)
{
int code = _varMap.get(var.toLowerCase(Locale.ENGLISH));
if (code > 0) {
}
else if (var.startsWith("HTTP_")) {
var = var.substring(5).replace('_', '-').toLowerCase(Locale.ENGLISH);
code = HTTP_;
}
else
code = ATTRIBUTE;
_code = code;
_var = var;
_path = path;
}
/**
* Evaluate as a string.
*/
public String evalString(HttpServletRequest request,
HttpServletResponse response)
{
String fmt;
String value = null;
Object attr = null;
switch (_code) {
case ATTRIBUTE:
{
attr = request.getParameter(_var);
if (attr == null)
attr = request.getAttribute(_var);
value = String.valueOf(attr);
break;
}
case HTTP_:
value = request.getHeader(_var);
break;
case SERVER_SOFTWARE:
value = "Resin/" + VersionFactory.getVersion();
break;
case SERVER_NAME:
case SERVER_ADDR:
value = request.getServerName();
break;
case SERVER_PORT:
value = String.valueOf(request.getServerPort());
break;
case REMOTE_ADDR:
value = request.getServerName();
break;
case REMOTE_PORT:
value = String.valueOf(request.getServerPort());
break;
case REMOTE_USER:
value = request.getRemoteUser();
break;
case AUTH_TYPE:
value = request.getAuthType();
break;
case GATEWAY_INTERFACE:
value = "CGI/1.1";
break;
case SERVER_PROTOCOL:
value = request.getProtocol();
break;
case REQUEST_METHOD:
value = request.getMethod();
break;
case QUERY_STRING:
value = request.getQueryString();
break;
case REQUEST_URI:
value = request.getRequestURI();
break;
case PATH_INFO:
value = request.getPathInfo();
break;
case PATH_TRANSLATED:
value = request.getRealPath(request.getPathInfo());
break;
case CONTENT_LENGTH:
value = String.valueOf(request.getContentLength());
break;
case CONTENT_TYPE:
value = request.getHeader("Content-Type");
break;
case DATE_GMT:
fmt = (String) request.getAttribute("caucho.ssi.timefmt");
if (fmt == null)
fmt = "%Y-%m-%d %H:%M:%S";
value = QDate.formatGMT(Alarm.getCurrentTime(), fmt);
break;
case DATE_LOCAL:
fmt = (String) request.getAttribute("caucho.ssi.timefmt");
if (fmt == null)
fmt = "%Y-%m-%d %H:%M:%S";
value = QDate.formatLocal(Alarm.getCurrentTime(), fmt);
break;
case DOCUMENT_NAME:
value = _path.getTail();
break;
case DOCUMENT_URI:
value = request.getRequestURI();
break;
case LAST_MODIFIED:
fmt = (String) request.getAttribute("caucho.ssi.timefmt");
if (fmt == null)
fmt = "%Y-%m-%d %H:%M:%S";
value = QDate.formatLocal(_path.getLastModified(), fmt);
break;
case USER_NAME:
default:
break;
}
if (value != null)
return value;
else
return "(null)";
}
@Override
public String toString()
{
return getClass().getSimpleName() + "[" + _var + "]";
}
static {
_varMap.put("server_software", SERVER_SOFTWARE);
_varMap.put("server_name", SERVER_NAME);
_varMap.put("server_addr", SERVER_ADDR);
_varMap.put("server_port", SERVER_PORT);
_varMap.put("remote_addr", REMOTE_ADDR);
_varMap.put("remote_port", REMOTE_PORT);
_varMap.put("remote_user", REMOTE_USER);
_varMap.put("auth_type", AUTH_TYPE);
_varMap.put("gateway_interface", GATEWAY_INTERFACE);
_varMap.put("server_protocol", SERVER_PROTOCOL);
_varMap.put("request_method", REQUEST_METHOD);
_varMap.put("query_string", QUERY_STRING);
_varMap.put("request_uri", REQUEST_URI);
_varMap.put("script_filename", SCRIPT_FILENAME);
_varMap.put("script_name", SCRIPT_NAME);
_varMap.put("path_info", PATH_INFO);
_varMap.put("path_translated", PATH_TRANSLATED);
_varMap.put("content_length", CONTENT_LENGTH);
_varMap.put("content_type", CONTENT_TYPE);
_varMap.put("date_gmt", DATE_GMT);
_varMap.put("date_local", DATE_LOCAL);
_varMap.put("document_name", DOCUMENT_NAME);
_varMap.put("document_uri", DOCUMENT_URI);
_varMap.put("last_modified", LAST_MODIFIED);
_varMap.put("user_name", USER_NAME);
}
}