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13 package com.tonbeller.wcf.controller;
14
15 import java.util.Locale  ;
16 import java.util.Map ;
17 import java.util.MissingResourceException ;
18 import java.util.StringTokenizer ;
19
20 import javax.faces.context.FacesContext;
21 import javax.faces.el.ValueBinding;
22 import javax.servlet.ServletContext ;
23 import javax.servlet.http.HttpServletRequest ;
24 import javax.servlet.http.HttpServletResponse ;
25 import javax.servlet.http.HttpSession ;
26
27 import org.apache.log4j.Logger;
28
29 import com.tonbeller.tbutils.res.Resources;
30 import com.tonbeller.wcf.convert.Converter;
31 import com.tonbeller.wcf.expr.ExprContext;
32 import com.tonbeller.wcf.expr.ExprUtils;
33 import com.tonbeller.wcf.format.Formatter;
34
37 public class RequestContextImpl extends RequestContext implements ExprContext {
38 protected RequestContextFactory rcf;
39 protected HttpServletRequest request;
40 protected HttpServletResponse response;
41 protected static Logger logger = Logger.getLogger(RequestContextImpl.class);
42
43 public RequestContextImpl(RequestContextFactory rcf, HttpServletRequest request,
44 HttpServletResponse response) {
45 this.rcf = rcf;
46 this.request = request;
47 this.response = response;
48 }
49
50 public void invalidate() {
51 super.invalidate();
52 this.rcf = null;
53 this.request = null;
54 this.response = null;
55 }
56
57 public HttpServletRequest getRequest() {
58 return request;
59 }
60
61 public HttpServletResponse getResponse() {
62 return response;
63 }
64
65 public ServletContext getServletContext() {
66 return getSession().getServletContext();
67 }
68
69 public HttpSession getSession() {
70 return request.getSession(true);
71 }
72
73 public Locale getLocale() {
74 return rcf.getLocale();
75 }
76
77 public Formatter getFormatter() {
78 return rcf.getFormatter();
79 }
80
81 public Converter getConverter() {
82 return rcf.getConverter();
83 }
84
85 public Map getParameters() {
86 return request.getParameterMap();
87 }
88
89 public String [] getParameters(String name) {
90 return request.getParameterValues(name);
91 }
92
93 public String getParameter(String name) {
94 return request.getParameter(name);
95 }
96
97 public Object getModelReference(String expr) {
98 if (expr == null || expr.length() == 0)
99 return null;
100 FacesContext fc = FacesContext.getCurrentInstance();
101 if (fc != null && expr.startsWith("#{")) {
102 ValueBinding vb = fc.getApplication().createValueBinding(expr);
103 return vb.getValue(fc);
104 }
105 return ExprUtils.getModelReference(this, expr);
107 }
108
109 public void setModelReference(String expr, Object value) {
110 FacesContext fc = FacesContext.getCurrentInstance();
111 if (fc != null && expr.startsWith("#{")) {
112 ValueBinding vb = fc.getApplication().createValueBinding(expr);
113 vb.setValue(fc, value);
114 } else {
115 ExprUtils.setModelReference(this, expr, value);
117 }
118 }
119
120
124 public Object findBean(String name) {
125 Object bean = request.getAttribute(name);
126 if (bean != null)
127 return bean;
128 HttpSession session = getSession();
129 bean = session.getAttribute(name);
130 if (bean != null)
131 return bean;
132 ServletContext context = getServletContext();
133 bean = context.getAttribute(name);
134 if (bean != null)
135 return bean;
136 return null;
137 }
138
139 public void setBean(String name, Object bean) {
140 HttpSession session = getSession();
141 if (bean == null)
142 session.removeAttribute(name);
143 else
144 session.setAttribute(name, bean);
145 }
146
147 public boolean isUserInRole(String roleExpr) {
148 if (roleExpr == null || roleExpr.length() == 0)
149 return true;
150 String ref = (String ) getModelReference(roleExpr);
152 if (ref != null)
153 roleExpr = ref;
154 boolean success = true;
155 if (roleExpr.startsWith("!")) {
156 roleExpr = roleExpr.substring(1);
157 success = false;
158 }
159
160 if (isAdmin())
162 return success;
163
164 String mappedRole = getMappedRole(roleExpr);
166 if (mappedRole != null)
167 roleExpr = mappedRole;
168 if (request == null)
170 return !success;
171 StringTokenizer st = new StringTokenizer (roleExpr, ", ", false);
173 while (st.hasMoreTokens()) {
174 if (internalIsUserInRole(st.nextToken()))
175 return success;
176 }
177 return !success;
178 }
179
180
186 protected boolean internalIsUserInRole(String role) {
187 return request.isUserInRole(role);
188 }
189
190
203 protected String getMappedRole(String role) {
204 try {
205 return rcf.getResources().getString("role." + role);
206 } catch (MissingResourceException e) {
207 return null;
208 }
209 }
210
211 public Resources getResources() {
212 return Resources.instance(getLocale());
213 }
214
215 public Resources getResources(String bundleName) {
216 return Resources.instance(getLocale(), bundleName);
217 }
218
219 public Resources getResources(Class clasz) {
220 return Resources.instance(getLocale(), clasz);
221 }
222
223 public String getRemoteUser() {
224 return rcf.getRemoteUser();
225 }
226
227 public String getRemoteDomain() {
228 return rcf.getRemoteDomain();
229 }
230
231 public boolean isAdmin() {
232 return false;
233 }
234
235 public void setLocale(Locale locale) {
236 rcf.setLocale(request, locale);
237 }
238
239 public Map getFileParameters() {
240 if(request instanceof MultiPartEnabledRequest)
241 return ((MultiPartEnabledRequest)request).getFileParameterMap();
242
243 return null;
244 }
245 } |
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