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/*
* Copyright 1999,2005 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.xmlrpc.webserver;
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.io.UnsupportedEncodingException;
import java.lang.reflect.UndeclaredThrowableException;
import java.net.Socket;
import java.net.URLDecoder;
import java.security.Principal;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.StringTokenizer;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletInputStream;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import org.apache.xmlrpc.common.XmlRpcStreamConfig;
import org.apache.xmlrpc.util.HttpUtil;
/** Stub implementation of a {@link javax.servlet.http.HttpServletRequest}
* with lots of unimplemented methods. I implemented only those, which
* are required for testing the {@link org.apache.xmlrpc.webserver.XmlRpcServlet}.
* Perhaps someone else is adding more at a later time?
*/
public class HttpServletRequestImpl implements HttpServletRequest {
private final Socket socket;
private final ServletInputStream istream;
private ServletInputStream sistream;
private BufferedReader reader;
private boolean postParametersParsed;
private final String method;
private final String protocol;
private final String uri;
private final String queryString;
private final String httpVersion;
private final Map headers = new HashMap();
private final Map attributes = new HashMap();
private Map parameters;
private String characterEncoding;
private int contentBytesRemaining = -1;
/** Creates a new instance, which reads input from the given
* socket.
* @param pSocket The socket, to which the client is connected.
* @throws IOException Accessing the sockets input stream failed.
*/
public HttpServletRequestImpl(Socket pSocket) throws IOException {
socket = pSocket;
final InputStream bis = new BufferedInputStream(socket.getInputStream()){
/** It may happen, that the XML parser invokes close().
* Closing the input stream must not occur, because
* that would close the whole socket. So we suppress it.
*/
public void close() throws IOException {
}
};
istream = new ServletInputStream(){
public int read() throws IOException {
if (contentBytesRemaining == 0) {
return -1;
}
int c = bis.read();
if (c != -1 && contentBytesRemaining > 0) {
--contentBytesRemaining;
}
return c;
}
};
/** Read the header lines, one by one. Note, that the size of
* the buffer is a limitation of the maximum header length!
*/
byte[] buffer = new byte[2048];
String line = readLine(buffer);
StringTokenizer tokens = new StringTokenizer(line);
if (!tokens.hasMoreTokens()) {
throw new ServletWebServer.Exception(400, "Bad Request",
"Unable to parse requests first line (should"
+ " be 'METHOD uri HTTP/version', was empty.");
}
method = tokens.nextToken();
if (!"POST".equalsIgnoreCase(method)) {
throw new ServletWebServer.Exception(400, "Bad Request",
"Expected 'POST' method, got " + method);
}
if (!tokens.hasMoreTokens()) {
throw new ServletWebServer.Exception(400, "Bad Request",
"Unable to parse requests first line (should"
+ " be 'METHOD uri HTTP/version', was: " + line);
}
String u = tokens.nextToken();
int offset = u.indexOf('?');
if (offset >= 0) {
uri = u.substring(0, offset);
queryString = u.substring(offset+1);
} else {
uri = u;
queryString = null;
}
if (tokens.hasMoreTokens()) {
String v = tokens.nextToken().toUpperCase();
if (tokens.hasMoreTokens()) {
throw new ServletWebServer.Exception(400, "Bad Request",
"Unable to parse requests first line (should"
+ " be 'METHOD uri HTTP/version', was: " + line);
} else {
int index = v.indexOf('/');
if (index == -1) {
throw new ServletWebServer.Exception(400, "Bad Request",
"Unable to parse requests first line (should"
+ " be 'METHOD uri HTTP/version', was: " + line);
}
protocol = v.substring(0, index).toUpperCase();
httpVersion = v.substring(index+1);
}
} else {
httpVersion = "1.0";
protocol = "HTTP";
}
for (;;) {
line = HttpUtil.readLine(istream, buffer);
if (line == null || line.length() == 0) {
break;
}
int off = line.indexOf(':');
if (off > 0) {
addHeader(line.substring(0, off), line.substring(off+1).trim());
} else {
throw new ServletWebServer.Exception(400, "Bad Request", "Unable to parse header line: " + line);
}
}
contentBytesRemaining = getIntHeader("content-length");
}
protected String readLine(byte[] pBuffer) throws IOException {
int res = istream.readLine(pBuffer, 0, pBuffer.length);
if (res == -1) {
return null;
}
if (res == pBuffer.length && pBuffer[pBuffer.length] != '\n') {
throw new ServletWebServer.Exception(400, "Bad Request",
"Maximum header size of " + pBuffer.length +
" characters exceeded.");
}
return new String(pBuffer, 0, res, "US-ASCII");
}
protected void addHeader(String pHeader, String pValue) {
String key = pHeader.toLowerCase();
addParameter(headers, key, pValue);
}
public String getAuthType() {
String s = getHeader("Authorization");
if (s == null) {
return null;
}
StringTokenizer st = new StringTokenizer(s);
if (st.hasMoreTokens()) {
return st.nextToken().toUpperCase();
} else {
return null;
}
}
public String getContextPath() { return ""; }
public Cookie[] getCookies() { throw new IllegalStateException("Not implemented"); }
public long getDateHeader(String arg0) { throw new IllegalStateException("Not implemented"); }
public String getHeader(String pHeader) {
String key = pHeader.toLowerCase();
Object o = headers.get(key);
if (o instanceof List) {
o = ((List) o).get(0);
}
return (String) o;
}
public Enumeration getHeaderNames() {
return Collections.enumeration(headers.keySet());
}
public Enumeration getHeaders(String pHeader) {
String key = pHeader.toLowerCase();
Object o = headers.get(key);
List list;
if (o instanceof List) {
list = (List) o;
} else {
list = Collections.singletonList(o);
}
return Collections.enumeration(list);
}
public int getIntHeader(String pHeader) {
String s = getHeader(pHeader);
return s == null ? -1 : Integer.parseInt(s);
}
public String getMethod() { return method; }
public String getPathInfo() { return null; }
public String getPathTranslated() { return null; }
public String getQueryString() { return queryString; }
public String getRemoteUser() { throw new IllegalStateException("Not implemented"); }
public String getRequestURI() { return uri; }
public StringBuffer getRequestURL() {
String scheme = getScheme().toLowerCase();
StringBuffer sb = new StringBuffer(scheme);
sb.append("://");
String host = getHeader("host");
if (host == null) {
host = getLocalName();
if (host == null) {
host = getLocalAddr();
}
}
int port = getLocalPort();
int offset = host.indexOf(':');
if (offset != -1) {
host = host.substring(0, offset);
try {
port = Integer.parseInt(host.substring(offset+1));
} catch (Exception e) {
}
}
boolean isDefaultPort;
if ("http".equalsIgnoreCase(scheme)) {
isDefaultPort = port == 80;
} else if ("https".equalsIgnoreCase(scheme)) {
isDefaultPort = port == 443;
} else {
isDefaultPort = false;
}
if (!isDefaultPort) {
sb.append(':');
sb.append(port);
}
sb.append(getRequestURI());
return sb;
}
public String getRequestedSessionId() { throw new IllegalStateException("Not implemented"); }
public String getServletPath() { return uri; }
public HttpSession getSession() { throw new IllegalStateException("Not implemented"); }
public HttpSession getSession(boolean pCreate) { throw new IllegalStateException("Not implemented"); }
public Principal getUserPrincipal() { throw new IllegalStateException("Not implemented"); }
public boolean isRequestedSessionIdFromCookie() { throw new IllegalStateException("Not implemented"); }
public boolean isRequestedSessionIdFromURL() { throw new IllegalStateException("Not implemented"); }
public boolean isRequestedSessionIdFromUrl() { throw new IllegalStateException("Not implemented"); }
public boolean isRequestedSessionIdValid() { throw new IllegalStateException("Not implemented"); }
public boolean isUserInRole(String pRole) { throw new IllegalStateException("Not implemented"); }
public Object getAttribute(String pKey) { return attributes.get(pKey); }
public Enumeration getAttributeNames() { return Collections.enumeration(attributes.keySet()); }
public String getCharacterEncoding() {
if (characterEncoding == null) {
String contentType = getHeader("content-type");
if (contentType != null) {
for (StringTokenizer st = new StringTokenizer(contentType, ";"); st.hasMoreTokens(); ) {
String s = st.nextToken().trim();
if (s.toLowerCase().startsWith("charset=")) {
return s.substring("charset=".length()).trim();
}
}
}
return null;
} else {
return characterEncoding;
}
}
public void setCharacterEncoding(String pEncoding) { characterEncoding = pEncoding; }
public int getContentLength() {
try {
return getIntHeader("content-length");
} catch (NumberFormatException e) {
return -1;
}
}
public String getContentType() { return getHeader("content-type"); }
public ServletInputStream getInputStream() throws IOException {
if (reader == null) {
if (sistream == null) {
if (postParametersParsed) {
throw new IllegalStateException("The method getInputStream() must not be called, after POST parameters have been parsed.");
}
sistream = istream;
}
return sistream;
} else {
throw new IllegalStateException("The method getReader() has already been invoked.");
}
}
public Locale getLocale() { throw new IllegalStateException("Not implemented"); }
public Enumeration getLocales() { throw new IllegalStateException("Not implemented"); }
private void addParameter(Map pParams, String pKey, String pValue) {
Object o = pParams.get(pKey);
if (o == null) {
pParams.put(pKey, pValue);
} else {
List list;
if (o instanceof String) {
list = new ArrayList();
list.add(o);
pParams.put(pKey, list);
} else {
list = (List) o;
}
list.add(pParams);
}
}
private void parseQueryString(Map pParams, String pQueryString, String pEncoding) throws UnsupportedEncodingException {
for (StringTokenizer st = new StringTokenizer(pQueryString, "&"); st.hasMoreTokens(); ) {
String s = st.nextToken();
parseParameter(pParams, s, pEncoding);
}
}
private void parseParameter(Map pParams, String pParam, String pEncoding) throws UnsupportedEncodingException {
if (pParam.length() == 0) {
return;
}
int offset = pParam.indexOf('=');
final String name, value;
if (offset == -1) {
name = pParam;
value = "";
} else {
name = pParam.substring(0, offset);
value = pParam.substring(offset+1);
}
addParameter(pParams, URLDecoder.decode(name, pEncoding), URLDecoder.decode(value, pEncoding));
}
private void parsePostData(Map pParams, InputStream pStream, String pEncoding) throws IOException {
Reader r = new InputStreamReader(pStream, "US-ASCII");
StringBuffer sb = new StringBuffer();
for (;;) {
int c = r.read();
if (c == -1 || c == '&') {
parseParameter(pParams, sb.toString(), pEncoding);
if (c == -1) {
break;
} else {
sb.setLength(0);
}
} else {
sb.append((char) c);
}
}
}
protected void parseParameters() {
if (parameters != null) {
return;
}
String encoding = getCharacterEncoding();
if (encoding == null) {
encoding = XmlRpcStreamConfig.UTF8_ENCODING;
}
Map params = new HashMap();
String s = getQueryString();
if (s != null) {
try {
parseQueryString(params, s, encoding);
} catch (IOException e) {
throw new UndeclaredThrowableException(e);
}
}
if ("POST".equals(getMethod()) &&
"application/x-www-form-urlencoded".equals(getContentType())) {
if (sistream != null || reader != null) {
throw new IllegalStateException("POST parameters cannot be parsed, after"
+ " getInputStream(), or getReader(),"
+ " have been called.");
}
postParametersParsed = true;
try {
parsePostData(params, istream, encoding);
} catch (IOException e) {
throw new UndeclaredThrowableException(e);
}
}
parameters = params;
}
public String getParameter(String pName) {
parseParameters();
Object o = parameters.get(pName);
if (o instanceof List) {
o = ((List) o).get(0);
}
return (String) o;
}
public Map getParameterMap() {
parseParameters();
final Map result = new HashMap();
for (final Iterator iter = parameters.entrySet().iterator(); iter.hasNext(); ) {
final Map.Entry entry = (Map.Entry) iter.next();
final String name = (String) entry.getKey();
final Object o = entry.getValue();
final String[] array;
if (o instanceof String) {
array = new String[]{(String) o};
} else if (o instanceof List) {
final List list = (List) o;
array = (String[]) list.toArray(new String[list.size()]);
} else {
throw new IllegalStateException("Invalid object: " + o.getClass().getName());
}
result.put(name, array);
}
return Collections.unmodifiableMap(result);
}
public Enumeration getParameterNames() {
parseParameters();
return Collections.enumeration(parameters.keySet());
}
public String[] getParameterValues(String pName) {
parseParameters();
Object o = parameters.get(pName);
if (o instanceof String) {
return new String[]{(String) o};
} else {
List list = (List) o;
return (String[]) list.toArray(new String[list.size()]);
}
}
public String getProtocol() { return protocol; }
public BufferedReader getReader() throws IOException {
if (sistream == null) {
if (reader == null) {
if (postParametersParsed) {
throw new IllegalStateException("The method getReader() must not be called, after POST parameters have been parsed.");
}
String encoding = getCharacterEncoding();
if (encoding == null) {
encoding = "UTF8";
}
reader = new BufferedReader(new InputStreamReader(istream, encoding));
}
return reader;
} else {
throw new IllegalStateException("The methods getInputStream(), and getReader(), are mutually exclusive.");
}
}
public String getRealPath(String pPath) { throw new IllegalStateException("Not implemented."); }
public String getLocalAddr() { return socket.getLocalAddress().getHostAddress(); }
public String getLocalName() { return socket.getLocalAddress().getHostName(); }
public int getLocalPort() { return socket.getLocalPort(); }
public String getRemoteAddr() { return socket.getInetAddress().getHostAddress(); }
public String getRemoteHost() { return socket.getInetAddress().getHostName(); }
public int getRemotePort() { return socket.getPort(); }
public RequestDispatcher getRequestDispatcher(String pUri) {
throw new IllegalStateException("Not implemented");
}
public String getScheme() { return "http"; }
public String getServerName() { return socket.getLocalAddress().getHostName(); }
public int getServerPort() { return socket.getLocalPort(); }
public boolean isSecure() { return false; }
public void removeAttribute(String pKey) {
attributes.remove(pKey);
}
public void setAttribute(String pKey, Object pValue) {
attributes.put(pKey, pValue);
}
protected String getHttpVersion() { return httpVersion; }
}
