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| package org.apache.tapestry.web; |
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| |
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| import java.io.IOException; |
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| import java.util.List; |
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| import java.util.Locale; |
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| |
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| import javax.servlet.RequestDispatcher; |
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| import javax.servlet.ServletException; |
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| import javax.servlet.http.HttpServletRequest; |
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| import javax.servlet.http.HttpServletResponse; |
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| import javax.servlet.http.HttpSession; |
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| |
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| import org.apache.hivemind.ApplicationRuntimeException; |
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| import org.apache.hivemind.HiveMind; |
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| import org.apache.hivemind.util.Defense; |
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| import org.apache.tapestry.describe.DescriptionReceiver; |
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| public class ServletWebRequest implements WebRequest |
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| { |
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| private final HttpServletRequest _servletRequest; |
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| |
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| private final HttpServletResponse _servletResponse; |
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| |
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| private WebSession _webSession; |
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| |
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| public ServletWebRequest(HttpServletRequest request, HttpServletResponse response)
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| { |
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| Defense.notNull(request, "request");
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| Defense.notNull(response, "response");
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| |
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| _servletRequest = request;
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| _servletResponse = response;
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| } |
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| |
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| public List getParameterNames()
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| { |
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| return WebUtils.toSortedList(_servletRequest.getParameterNames());
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| } |
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| |
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| public String getParameterValue(String parameterName)
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| { |
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| return _servletRequest.getParameter(parameterName);
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| } |
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| public String[] getParameterValues(String parameterName)
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| { |
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| return _servletRequest.getParameterValues(parameterName);
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| } |
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| |
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| public String getContextPath()
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| { |
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| return _servletRequest.getContextPath();
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| } |
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| |
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| public WebSession getSession(boolean create)
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| { |
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| if (_webSession != null)
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| return _webSession;
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| |
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| HttpSession session = _servletRequest.getSession(create);
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| if (session != null)
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| _webSession = new ServletWebSession(session);
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| return _webSession;
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| } |
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| public List getAttributeNames()
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| { |
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| return WebUtils.toSortedList(_servletRequest.getAttributeNames());
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| } |
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| public Object getAttribute(String name)
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| { |
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| return _servletRequest.getAttribute(name);
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| } |
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| public void setAttribute(String name, Object attribute)
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| { |
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| if (attribute == null)
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| _servletRequest.removeAttribute(name);
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| else |
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| _servletRequest.setAttribute(name, attribute);
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| } |
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| |
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| public String getScheme()
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| { |
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| return _servletRequest.getScheme();
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| } |
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| |
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| public String getServerName()
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| { |
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| return _servletRequest.getServerName();
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| } |
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| |
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| public int getServerPort()
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| { |
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| return _servletRequest.getServerPort();
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| } |
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| |
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| public String getRequestURI()
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| { |
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| return _servletRequest.getRequestURI();
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| } |
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| |
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| public void forward(String URL)
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| { |
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| if (HiveMind.isBlank(URL))
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| { |
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| performForward("/");
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| return;
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| } |
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| |
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| boolean internal = !(URL.startsWith("/") || URL.indexOf("://") > 0);
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| if (internal)
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| performForward("/" + URL);
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| else |
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| sendRedirect(URL);
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| } |
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| private void sendRedirect(String URL)
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| { |
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| String finalURL = _servletResponse.encodeRedirectURL(URL);
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| try
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| { |
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| _servletResponse.sendRedirect(finalURL);
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| } |
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| catch (IOException ex) |
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| { |
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| throw new ApplicationRuntimeException(WebMessages.unableToRedirect(URL, ex), ex);
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| } |
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| |
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| } |
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| private void performForward(String URL)
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| { |
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| RequestDispatcher dispatcher = _servletRequest.getRequestDispatcher(URL);
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| if (dispatcher == null)
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| throw new ApplicationRuntimeException(WebMessages.unableToFindDispatcher(URL));
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| |
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| try
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| { |
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| dispatcher.forward(_servletRequest, _servletResponse);
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| } |
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| catch (ServletException ex) |
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| { |
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| throw new ApplicationRuntimeException(WebMessages.unableToForward(URL, ex), ex);
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| } |
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| catch (IOException ex) |
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| { |
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| throw new ApplicationRuntimeException(WebMessages.unableToForward(URL, ex), ex);
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| } |
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| } |
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| public String getActivationPath()
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| { |
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| String servletPath = _servletRequest.getServletPath();
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| String pathInfo = _servletRequest.getPathInfo();
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| return pathInfo == null ? servletPath : servletPath + pathInfo;
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| } |
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| public Locale getLocale()
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| { |
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| return _servletRequest.getLocale();
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| } |
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| public void describeTo(DescriptionReceiver receiver)
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| { |
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| receiver.describeAlternate(_servletRequest);
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| } |
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| |
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| public String getHeader(String name)
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| { |
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| return _servletRequest.getHeader(name);
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| } |
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| } |