001
014
015 package com.liferay.portal.servlet;
016
017 import com.liferay.portal.action.JSONServiceAction;
018 import com.liferay.portal.kernel.log.Log;
019 import com.liferay.portal.kernel.log.LogFactoryUtil;
020 import com.liferay.portal.kernel.servlet.PluginContextListener;
021 import com.liferay.portal.kernel.util.GetterUtil;
022 import com.liferay.portal.model.User;
023 import com.liferay.portal.security.auth.PrincipalThreadLocal;
024 import com.liferay.portal.security.permission.PermissionChecker;
025 import com.liferay.portal.security.permission.PermissionCheckerFactoryUtil;
026 import com.liferay.portal.security.permission.PermissionThreadLocal;
027 import com.liferay.portal.service.UserLocalServiceUtil;
028 import com.liferay.portal.struts.JSONAction;
029 import com.liferay.portal.util.ClassLoaderUtil;
030
031 import java.io.IOException;
032
033 import javax.servlet.ServletConfig;
034 import javax.servlet.ServletContext;
035 import javax.servlet.ServletException;
036 import javax.servlet.http.HttpServlet;
037 import javax.servlet.http.HttpServletRequest;
038 import javax.servlet.http.HttpServletResponse;
039
040
043 public class JSONServlet extends HttpServlet {
044
045 @Override
046 public void init(ServletConfig servletConfig) {
047 ServletContext servletContext = servletConfig.getServletContext();
048
049 _pluginClassLoader = (ClassLoader)servletContext.getAttribute(
050 PluginContextListener.PLUGIN_CLASS_LOADER);
051
052 _jsonAction = getJSONAction(servletContext);
053 }
054
055 @Override
056 @SuppressWarnings("unused")
057 public void service(
058 HttpServletRequest request, HttpServletResponse response)
059 throws IOException, ServletException {
060
061 try {
062 resolveRemoteUser(request);
063
064 if (_pluginClassLoader == null) {
065 _jsonAction.execute(null, null, request, response);
066 }
067 else {
068 ClassLoader contextClassLoader =
069 ClassLoaderUtil.getContextClassLoader();
070
071 try {
072 ClassLoaderUtil.setContextClassLoader(_pluginClassLoader);
073
074 _jsonAction.execute(null, null, request, response);
075 }
076 finally {
077 ClassLoaderUtil.setContextClassLoader(contextClassLoader);
078 }
079 }
080 }
081 catch (Exception e) {
082 _log.error(e, e);
083 }
084 }
085
086 protected JSONAction getJSONAction(ServletContext servletContext) {
087 JSONAction jsonAction = new JSONServiceAction();
088
089 jsonAction.setServletContext(servletContext);
090
091 return jsonAction;
092 }
093
094 protected void resolveRemoteUser(HttpServletRequest request)
095 throws Exception {
096
097 String remoteUser = request.getRemoteUser();
098
099 if (_log.isDebugEnabled()) {
100 _log.debug("Remote user " + remoteUser);
101 }
102
103 if (remoteUser != null) {
104 PrincipalThreadLocal.setName(remoteUser);
105
106 long userId = GetterUtil.getLong(remoteUser);
107
108 User user = UserLocalServiceUtil.getUserById(userId);
109
110 PermissionChecker permissionChecker =
111 PermissionCheckerFactoryUtil.create(user);
112
113 PermissionThreadLocal.setPermissionChecker(permissionChecker);
114 }
115 }
116
117 private static Log _log = LogFactoryUtil.getLog(JSONServlet.class);
118
119 private JSONAction _jsonAction;
120 private ClassLoader _pluginClassLoader;
121
122 }