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1
31
32 package org.opencms.loader;
33
34 import org.opencms.file.CmsFile;
35 import org.opencms.file.CmsObject;
36 import org.opencms.file.CmsResource;
37 import org.opencms.flex.CmsFlexController;
38 import org.opencms.main.CmsException;
39 import org.opencms.main.CmsLog;
40 import org.opencms.main.OpenCms;
41 import org.opencms.util.CmsRequestUtil;
42 import org.opencms.util.CmsStringUtil;
43 import org.opencms.workplace.CmsWorkplaceManager;
44
45 import java.io.IOException  ;
46 import java.util.Collections ;
47 import java.util.Iterator ;
48 import java.util.Locale ;
49 import java.util.Map ;
50 import java.util.TreeMap ;
51
52 import javax.servlet.ServletRequest ;
53 import javax.servlet.ServletResponse ;
54 import javax.servlet.http.HttpServletRequest ;
55 import javax.servlet.http.HttpServletResponse ;
56
57 import org.apache.commons.collections.ExtendedProperties;
58
59
71 public class CmsDumpLoader implements I_CmsResourceLoader {
72
73
74 public static final int RESOURCE_LOADER_ID = 1;
75
76
77 private static long m_clientCacheMaxAge;
78
79
80 private Map m_configuration;
81
82
85 public CmsDumpLoader() {
86
87 m_configuration = new TreeMap ();
88 }
89
90
93 public void addConfigurationParameter(String paramName, String paramValue) {
94
95 m_configuration.put(paramName, paramValue);
96 }
97
98
101 public void destroy() {
102
103 }
105
106
109 public byte[] dump(
110 CmsObject cms,
111 CmsResource resource,
112 String element,
113 Locale locale,
114 HttpServletRequest req,
115 HttpServletResponse res) throws CmsException {
116
117 return CmsFile.upgrade(resource, cms).getContents();
118 }
119
120
123 public byte[] export(CmsObject cms, CmsResource resource, HttpServletRequest req, HttpServletResponse res)
124 throws IOException , CmsException {
125
126 CmsFile file = CmsFile.upgrade(resource, cms);
127
128 if ((req != null) && (res != null)) {
131 for (Iterator i = OpenCms.getStaticExportManager().getExportHeaders().listIterator(); i.hasNext();) {
133 String header = (String )i.next();
134
135 String [] parts = CmsStringUtil.splitAsArray(header, ':');
137 if (parts.length == 2) {
138 res.setHeader(parts[0], parts[1]);
139 }
140 }
141 load(cms, file, req, res);
142 }
143
144 return file.getContents();
145 }
146
147
153 public Map getConfiguration() {
154
155 return Collections.unmodifiableMap(m_configuration);
157 }
158
159
162 public int getLoaderId() {
163
164 return RESOURCE_LOADER_ID;
165 }
166
167
174 public String getResourceLoaderInfo() {
175
176 return Messages.get().getBundle().key(Messages.GUI_LOADER_DUMB_DEFAULT_DESC_0);
177 }
178
179
182 public void initConfiguration() {
183
184 ExtendedProperties config = new ExtendedProperties();
185 config.putAll(m_configuration);
186
187 String maxAge = config.getString("client.cache.maxage");
188 if (maxAge == null) {
189 m_clientCacheMaxAge = -1;
190 } else {
191 m_clientCacheMaxAge = Long.parseLong(maxAge);
192 }
193
194 if (CmsLog.INIT.isInfoEnabled()) {
195 if (maxAge != null) {
196 CmsLog.INIT.info(Messages.get().getBundle().key(Messages.INIT_CLIENT_CACHE_MAX_AGE_1, maxAge));
197 }
198 CmsLog.INIT.info(Messages.get().getBundle().key(
199 Messages.INIT_LOADER_INITIALIZED_1,
200 this.getClass().getName()));
201 }
202 }
203
204
207 public boolean isStaticExportEnabled() {
208
209 return true;
210 }
211
212
215 public boolean isStaticExportProcessable() {
216
217 return false;
218 }
219
220
223 public boolean isUsableForTemplates() {
224
225 return false;
226 }
227
228
231 public boolean isUsingUriWhenLoadingTemplate() {
232
233 return false;
234 }
235
236
239 public void load(CmsObject cms, CmsResource resource, HttpServletRequest req, HttpServletResponse res)
240 throws IOException , CmsException {
241
242 if (canSendLastModifiedHeader(resource, req, res)) {
243 return;
245 }
246
247 CmsFile file = CmsFile.upgrade(resource, cms);
249
250 res.setStatus(HttpServletResponse.SC_OK);
252 res.setContentLength(file.getContents().length);
254
255 if (CmsWorkplaceManager.isWorkplaceUser(req)) {
256 res.setDateHeader(CmsRequestUtil.HEADER_LAST_MODIFIED, System.currentTimeMillis());
258 CmsRequestUtil.setNoCacheHeaders(res);
259 } else {
260 res.setDateHeader(CmsRequestUtil.HEADER_LAST_MODIFIED, file.getDateLastModified());
262
263 if (!res.containsHeader(CmsRequestUtil.HEADER_CACHE_CONTROL)) {
265 long expireTime = resource.getDateExpired();
266 if (expireTime == CmsResource.DATE_EXPIRED_DEFAULT) {
267 expireTime--;
268 }
270 CmsFlexController.setDateExpiresHeader(res, expireTime, m_clientCacheMaxAge);
272 }
273 }
274
275 service(cms, file, req, res);
276 }
277
278
281 public void service(CmsObject cms, CmsResource resource, ServletRequest req, ServletResponse res)
282 throws CmsException, IOException {
283
284 res.getOutputStream().write(CmsFile.upgrade(resource, cms).getContents());
285 }
286
287
299 protected boolean canSendLastModifiedHeader(CmsResource resource, HttpServletRequest req, HttpServletResponse res) {
300
301 boolean isWorkplaceUser = CmsWorkplaceManager.isWorkplaceUser(req);
303
304 if (!isWorkplaceUser) {
305 long lastModifiedHeader = req.getDateHeader(CmsRequestUtil.HEADER_IF_MODIFIED_SINCE);
307 if (lastModifiedHeader > -1) {
308 if ((resource.getState() == CmsResource.STATE_UNCHANGED)
310 && (resource.getDateLastModified() == lastModifiedHeader)) {
311 long now = System.currentTimeMillis();
312 if ((resource.getDateReleased() < now) && (resource.getDateExpired() > now)) {
313 CmsFlexController.setDateExpiresHeader(res, resource.getDateExpired(), m_clientCacheMaxAge);
314 res.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
315 return true;
316 }
317 }
318 }
319 }
320 return false;
321 }
322 }
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