Java tutorial
/* ----------------------------------------------------------------------------- This source file is part of Cell Cloud. Copyright (c) 2009-2013 Cell Cloud Team (www.cellcloud.net) Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ----------------------------------------------------------------------------- */ package net.cellcloud.http; import java.io.BufferedReader; import java.io.ByteArrayInputStream; import java.io.IOException; import java.io.UnsupportedEncodingException; import java.nio.charset.Charset; import java.security.Principal; import java.util.Collection; import java.util.Enumeration; import java.util.Locale; import java.util.Map; import java.util.Vector; import javax.servlet.AsyncContext; import javax.servlet.DispatcherType; import javax.servlet.ReadListener; import javax.servlet.RequestDispatcher; import javax.servlet.ServletContext; import javax.servlet.ServletException; import javax.servlet.ServletInputStream; import javax.servlet.ServletRequest; import javax.servlet.ServletResponse; import javax.servlet.http.Cookie; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import javax.servlet.http.HttpUpgradeHandler; import javax.servlet.http.Part; import net.cellcloud.common.LogLevel; import net.cellcloud.common.Logger; import org.json.JSONException; import org.json.JSONObject; /** * ? Request * * @author Jiangwei Xu */ public class CrossOriginHttpServletRequest implements HttpServletRequest { private HttpServletRequest soul; private String method; private String uri; private String cookie; private JSONObject parameters; private DummyServletInputStream inputStream; private int length; public CrossOriginHttpServletRequest(HttpServletRequest request, String method, String uri) { this.soul = request; this.method = method; this.uri = uri; this.cookie = request.getParameter(HttpCrossDomainHandler.COOKIE); // ?? this.analyseParameters(); // ? POST Body this.analysePostBody(); } private void analyseParameters() { String parameters = this.soul.getParameter(HttpCrossDomainHandler.PARAMETERS); if (null != parameters) { try { this.parameters = new JSONObject(parameters); } catch (JSONException e) { Logger.log(CrossOriginHttpServletRequest.class, e, LogLevel.WARNING); } } } private void analysePostBody() { String content = this.soul.getParameter(HttpCrossDomainHandler.BODY); if (null != content) { this.length = content.length(); this.inputStream = new DummyServletInputStream(content); } else { this.length = 0; } } @Override public AsyncContext getAsyncContext() { return this.soul.getAsyncContext(); } @Override public Object getAttribute(String name) { return this.soul.getAttribute(name); } @Override public Enumeration<String> getAttributeNames() { return this.soul.getAttributeNames(); } @Override public String getCharacterEncoding() { return this.soul.getCharacterEncoding(); } @Override public int getContentLength() { return this.length; } @Override public String getContentType() { return this.soul.getContentType(); } @Override public DispatcherType getDispatcherType() { return this.soul.getDispatcherType(); } @Override public ServletInputStream getInputStream() throws IOException { return this.inputStream; } @Override public String getLocalAddr() { return this.soul.getLocalAddr(); } @Override public String getLocalName() { return this.soul.getLocalName(); } @Override public int getLocalPort() { return this.soul.getLocalPort(); } @Override public Locale getLocale() { return this.soul.getLocale(); } @Override public Enumeration<Locale> getLocales() { return this.soul.getLocales(); } /** * @note ? * @param name * @return */ @Override public String getParameter(String name) { if (name.equals(HttpCrossDomainHandler.COOKIE)) { return this.cookie; } if (null == this.parameters) { return null; } String ret = null; try { ret = this.parameters.get(name).toString(); } catch (JSONException e) { Logger.log(this.getClass(), e, LogLevel.WARNING); } return ret; } @Override public Map<String, String[]> getParameterMap() { return null; } @Override public Enumeration<String> getParameterNames() { if (null == this.parameters) { return null; } String[] names = JSONObject.getNames(this.parameters); Vector<String> list = new Vector<String>(); for (String n : names) { list.add(n); } return list.elements(); } @Override public String[] getParameterValues(String name) { if (null == this.parameters) { return null; } String value = null; try { value = this.parameters.get(name).toString(); } catch (JSONException e) { Logger.log(this.getClass(), e, LogLevel.WARNING); } if (null != value) { return (new String[] { value }); } return null; } @Override public String getProtocol() { return this.soul.getProtocol(); } @Override public BufferedReader getReader() throws IOException { return this.soul.getReader(); } @Override public String getRealPath(String arg0) { return null; } @Override public String getRemoteAddr() { return this.soul.getRemoteAddr(); } @Override public String getRemoteHost() { return this.soul.getRemoteHost(); } @Override public int getRemotePort() { return this.soul.getRemotePort(); } @Override public RequestDispatcher getRequestDispatcher(String name) { return this.soul.getRequestDispatcher(name); } @Override public String getScheme() { return null; } @Override public String getServerName() { return this.soul.getServerName(); } @Override public int getServerPort() { return this.soul.getServerPort(); } @Override public ServletContext getServletContext() { return null; } @Override public boolean isAsyncStarted() { return this.soul.isAsyncStarted(); } @Override public boolean isAsyncSupported() { return this.soul.isAsyncSupported(); } @Override public boolean isSecure() { return this.soul.isSecure(); } @Override public void removeAttribute(String attrName) { this.soul.removeAttribute(attrName); } @Override public void setAttribute(String name, Object value) { this.soul.setAttribute(name, value); } @Override public void setCharacterEncoding(String value) throws UnsupportedEncodingException { this.soul.setCharacterEncoding(value); } @Override public AsyncContext startAsync() throws IllegalStateException { return this.soul.startAsync(); } @Override public AsyncContext startAsync(ServletRequest request, ServletResponse response) throws IllegalStateException { return this.soul.startAsync(request, response); } @Override public boolean authenticate(HttpServletResponse response) throws IOException, ServletException { return this.soul.authenticate(response); } @Override public String getAuthType() { return this.soul.getAuthType(); } @Override public String getContextPath() { return this.soul.getContextPath(); } @Override public Cookie[] getCookies() { return this.soul.getCookies(); } @Override public long getDateHeader(String name) { return this.soul.getDateHeader(name); } @Override public String getHeader(String name) { return this.soul.getHeader(name); } @Override public Enumeration<String> getHeaderNames() { return this.soul.getHeaderNames(); } @Override public Enumeration<String> getHeaders(String name) { return this.soul.getHeaders(name); } @Override public int getIntHeader(String name) { return this.soul.getIntHeader(name); } @Override public String getMethod() { return this.method; } @Override public Part getPart(String arg0) throws IOException, ServletException { return this.soul.getPart(arg0); } @Override public Collection<Part> getParts() throws IOException, ServletException { return this.soul.getParts(); } @Override public String getPathInfo() { return this.getPathInfo(); } @Override public String getPathTranslated() { return this.getPathTranslated(); } @Override public String getQueryString() { return this.getQueryString(); } @Override public String getRemoteUser() { return this.getRemoteUser(); } @Override public String getRequestURI() { return this.uri; } @Override public StringBuffer getRequestURL() { return null; } @Override public String getRequestedSessionId() { return this.soul.getRequestedSessionId(); } @Override public String getServletPath() { return this.soul.getServletPath(); } @Override public HttpSession getSession() { return null; } @Override public HttpSession getSession(boolean arg0) { return null; } @Override public Principal getUserPrincipal() { return null; } @Override public boolean isRequestedSessionIdFromCookie() { return this.soul.isRequestedSessionIdFromCookie(); } @Override public boolean isRequestedSessionIdFromURL() { return this.soul.isRequestedSessionIdFromURL(); } @Override public boolean isRequestedSessionIdFromUrl() { return false; } @Override public boolean isRequestedSessionIdValid() { return this.soul.isRequestedSessionIdValid(); } @Override public boolean isUserInRole(String arg0) { return this.soul.isUserInRole(arg0); } @Override public void login(String arg0, String arg1) throws ServletException { } @Override public void logout() throws ServletException { } @Override public long getContentLengthLong() { return this.soul.getContentLengthLong(); } @Override public String changeSessionId() { return this.soul.changeSessionId(); } @Override public <T extends HttpUpgradeHandler> T upgrade(Class<T> arg0) throws IOException, ServletException { return this.soul.upgrade(arg0); } /** * ? Servlet ? * * @author Jiangwei Xu * */ protected class DummyServletInputStream extends ServletInputStream { private ByteArrayInputStream inputStream; protected DummyServletInputStream(String content) { this.inputStream = new ByteArrayInputStream(content.getBytes(Charset.forName("UTF-8"))); } @Override public int read() throws IOException { return this.inputStream.read(); } @Override public int read(byte[] b) throws IOException { return this.inputStream.read(b); } @Override public int read(byte[] b, int off, int len) { return this.inputStream.read(b, off, len); } @Override public boolean isFinished() { return true; } @Override public boolean isReady() { return true; } @Override public void setReadListener(ReadListener arg0) { // TODO } } }