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1
64
65
70 package com.jcorporate.expresso.ext.taglib;
71
72 import com.jcorporate.expresso.core.controller.ControllerException;
73 import com.jcorporate.expresso.core.controller.NonHandleableException;
74 import com.jcorporate.expresso.core.jsdkapi.GenericDispatcher;
75 import com.jcorporate.expresso.core.misc.ConfigManager;
76 import com.jcorporate.expresso.core.misc.CurrentLogin;
77 import com.jcorporate.expresso.core.misc.StringUtil;
78 import com.jcorporate.expresso.core.security.User;
79 import com.jcorporate.expresso.core.servlet.CheckLogin;
80 import com.jcorporate.expresso.kernel.util.FastStringBuffer;
81 import org.apache.log4j.Logger;
82 import org.apache.struts.config.ActionConfig;
83
84 import javax.servlet.ServletException  ;
85 import javax.servlet.http.HttpServletRequest ;
86 import javax.servlet.http.HttpServletResponse ;
87 import javax.servlet.jsp.JspTagException ;
88 import java.io.IOException ;
89
90
91
98 public class Login
99 extends ExpressoTagSupport {
100 private String db = null;
101 private String forward = null;
102 private static final String defaultLoginUrl = "/Login.do";
103 private static final Logger log = Logger.getLogger(Login.class);
104
105 public Login() {
106 super();
107 }
108
109 public int doStartTag() throws javax.servlet.jsp.JspException {
110 return EVAL_BODY_INCLUDE;
111 }
112
113 public int doEndTag()
114 throws JspTagException {
115 HttpServletRequest request = (HttpServletRequest ) pageContext.getRequest();
116 HttpServletResponse response = (HttpServletResponse ) pageContext.getResponse();
117
118 try {
122 CheckLogin chk = CheckLogin.getInstance();
123 chk.checkLogin(request);
124
125 CurrentLogin myLogin = (CurrentLogin) pageContext.getSession().getAttribute(CurrentLogin.LOGIN_KEY);
126
127 if (myLogin == null) {
128 throw new JspTagException ("Unable to estabish session");
129 }
130
131 String userName = myLogin.getUserName();
132 String currentDB = myLogin.getDBName();
133
134 if ((userName.equals("") || userName.equals(User.UNKNOWN_USER))) {
135 if (log.isDebugEnabled()) {
136 log.debug("Sending to login");
137 }
138
139 return sendToLogin(request, response, chk);
140 }
141
142 if (db != null) {
143 if (!currentDB.equals(db)) {
144 if (!chk.loginViaCookie(request, db)) {
145 if (log.isDebugEnabled()) {
146 log.debug("Failed to log in via cookie, redirecting to login");
147 }
148 return sendToLogin(request, response, chk);
149 }
150 }
151
152 }
153
154
155 if (log.isDebugEnabled()) {
156 log.debug("getting current login");
157 }
158 myLogin = (CurrentLogin) pageContext.getSession().getAttribute(CurrentLogin.LOGIN_KEY);
159
160 if (myLogin == null) {
161 return sendToLogin(request, response, chk);
162 }
163
164 if (myLogin.getUserName().equals(User.UNKNOWN_USER)) {
165 return sendToLogin(request, response, chk);
166 }
167
168 return EVAL_PAGE;
169 } catch (IOException e) {
170 log.error(e);
171 throw new JspTagException (e.getMessage());
172 } catch (ServletException e) {
173 log.error(e);
174 throw new JspTagException (e.getMessage());
175 } catch (NonHandleableException e) {
176 log.error(e);
177 throw new JspTagException (e.getMessage());
178 } catch (Exception e) {
179 log.error(e);
180 throw new JspTagException (e.getMessage());
181 }
182 }
183
184
192 private int sendToLogin(HttpServletRequest request,
193 HttpServletResponse response, CheckLogin chk)
194 throws JspTagException {
195 if (forward != null) {
196 if (forward.equals("false")) {
197 try {
198 chk.logInAsNone(request, db);
199 } catch (ServletException se) {
200 log.error(se);
201 throw new JspTagException ("Could not log in as 'NONE'");
202 }
203
204 return EVAL_PAGE;
205 }
206 }
207
208 if (log.isDebugEnabled()) {
209 log.debug("User was not logged in - sending to login page");
210 }
211
212 try {
213 FastStringBuffer fsb = new FastStringBuffer(128);
214 ActionConfig am = ConfigManager.getActionConfig(com.jcorporate.expresso.services.controller
215 .LoginController.getLoginController().getClass().getName(), null);
216
217 if (am != null) {
218 fsb.append(StringUtil.notNull(am.getPath()));
219 fsb.append(".do");
220 } else {
221 fsb.append(defaultLoginUrl);
222 }
223
224 if (db != null) {
225 fsb.append("?dbContext=");
226 fsb.append(db);
227 } else {
228 fsb.append("&state=promptLogin");
229 }
230 String loginUrl = fsb.toString();
231
232 if (log.isDebugEnabled()) {
233 log.debug("Forwarding to '" + loginUrl + "'");
234 }
235
236 GenericDispatcher.forward(request, response, loginUrl);
237
238 return SKIP_PAGE;
239 } catch (ServletException se) {
240 log.error(se);
241 throw new JspTagException (se.getMessage());
242 } catch (IOException se) {
243 log.error(se);
244 throw new JspTagException (se.getMessage());
245 } catch (NullPointerException np) {
246 log.error(np);
247 throw new JspTagException (np.getMessage());
248 } catch (ControllerException ce) {
249 log.error("Unable to find appropriate login Controller", ce);
250 throw new JspTagException (ce.getMessage());
251 }
252 }
253
254 public String getDb() {
255 return db;
256 }
257
258 public void setDb(String newDb) {
259 db = newDb;
260 }
261
262 public String getForward() {
263 return forward;
264 }
265
266 public void setForward(String newForward) {
267 forward = newForward;
268 }
269 }
270 |
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