001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.struts;
016    
017    import com.liferay.portal.NoSuchLayoutException;
018    import com.liferay.portal.kernel.log.Log;
019    import com.liferay.portal.kernel.log.LogFactoryUtil;
020    import com.liferay.portal.kernel.util.ArrayUtil;
021    import com.liferay.portal.kernel.util.HttpUtil;
022    import com.liferay.portal.kernel.util.ParamUtil;
023    import com.liferay.portal.kernel.util.StringBundler;
024    import com.liferay.portal.kernel.util.Validator;
025    import com.liferay.portal.kernel.util.WebKeys;
026    import com.liferay.portal.model.Group;
027    import com.liferay.portal.model.Layout;
028    import com.liferay.portal.model.LayoutConstants;
029    import com.liferay.portal.model.LayoutTypePortlet;
030    import com.liferay.portal.model.PortletConstants;
031    import com.liferay.portal.model.impl.VirtualLayout;
032    import com.liferay.portal.security.permission.ActionKeys;
033    import com.liferay.portal.security.permission.PermissionChecker;
034    import com.liferay.portal.service.GroupLocalServiceUtil;
035    import com.liferay.portal.service.LayoutLocalServiceUtil;
036    import com.liferay.portal.service.permission.LayoutPermissionUtil;
037    import com.liferay.portal.theme.ThemeDisplay;
038    import com.liferay.portal.util.PortalUtil;
039    import com.liferay.portlet.PortletURLFactoryUtil;
040    import com.liferay.portlet.sites.util.SitesUtil;
041    
042    import javax.portlet.PortletMode;
043    import javax.portlet.PortletRequest;
044    import javax.portlet.PortletURL;
045    import javax.portlet.WindowState;
046    
047    import javax.servlet.http.HttpServletRequest;
048    import javax.servlet.http.HttpServletResponse;
049    
050    import org.apache.struts.action.Action;
051    import org.apache.struts.action.ActionForm;
052    import org.apache.struts.action.ActionForward;
053    import org.apache.struts.action.ActionMapping;
054    
055    /**
056     * @author Brian Wing Shun Chan
057     */
058    public abstract class FindAction extends Action {
059    
060            public FindAction() {
061                    _portletIds = initPortletIds();
062    
063                    if (ArrayUtil.isEmpty(_portletIds)) {
064                            throw new RuntimeException("Portlet IDs cannot be null or empty");
065                    }
066            }
067    
068            @Override
069            public ActionForward execute(
070                            ActionMapping actionMapping, ActionForm actionForm,
071                            HttpServletRequest request, HttpServletResponse response)
072                    throws Exception {
073    
074                    ThemeDisplay themeDisplay = (ThemeDisplay)request.getAttribute(
075                            WebKeys.THEME_DISPLAY);
076    
077                    try {
078                            long plid = ParamUtil.getLong(request, "p_l_id");
079                            long primaryKey = ParamUtil.getLong(
080                                    request, getPrimaryKeyParameterName());
081    
082                            long groupId = ParamUtil.getLong(
083                                    request, "groupId", themeDisplay.getScopeGroupId());
084    
085                            if (primaryKey > 0) {
086                                    try {
087                                            long overrideGroupId = getGroupId(primaryKey);
088    
089                                            if (overrideGroupId > 0) {
090                                                    groupId = overrideGroupId;
091                                            }
092                                    }
093                                    catch (Exception e) {
094                                            if (_log.isDebugEnabled()) {
095                                                    _log.debug(e, e);
096                                            }
097                                    }
098                            }
099    
100                            Object[] plidAndPortletId = getPlidAndPortletId(
101                                    themeDisplay, groupId, plid, _portletIds);
102    
103                            plid = (Long)plidAndPortletId[0];
104    
105                            setTargetGroup(request, groupId, plid);
106    
107                            String portletId = (String)plidAndPortletId[1];
108    
109                            PortletURL portletURL = PortletURLFactoryUtil.create(
110                                    request, portletId, plid, PortletRequest.RENDER_PHASE);
111    
112                            portletURL.setParameter(
113                                    "struts_action", getStrutsAction(request, portletId));
114    
115                            boolean inheritRedirect = ParamUtil.getBoolean(
116                                    request, "inheritRedirect");
117    
118                            String redirect = null;
119    
120                            if (inheritRedirect) {
121                                    String noSuchEntryRedirect = ParamUtil.getString(
122                                            request, "noSuchEntryRedirect");
123    
124                                    redirect = HttpUtil.getParameter(
125                                            noSuchEntryRedirect, "redirect", false);
126    
127                                    redirect = HttpUtil.decodeURL(redirect);
128                            }
129                            else {
130                                    redirect = ParamUtil.getString(request, "redirect");
131                            }
132    
133                            if (Validator.isNotNull(redirect)) {
134                                    portletURL.setParameter("redirect", redirect);
135                            }
136    
137                            setPrimaryKeyParameter(portletURL, primaryKey);
138    
139                            portletURL.setPortletMode(PortletMode.VIEW);
140                            portletURL.setWindowState(WindowState.NORMAL);
141    
142                            portletURL = processPortletURL(request, portletURL);
143    
144                            response.sendRedirect(portletURL.toString());
145    
146                            return null;
147                    }
148                    catch (Exception e) {
149                            String noSuchEntryRedirect = ParamUtil.getString(
150                                    request, "noSuchEntryRedirect");
151    
152                            noSuchEntryRedirect = PortalUtil.escapeRedirect(
153                                    noSuchEntryRedirect);
154    
155                            if (Validator.isNotNull(noSuchEntryRedirect) &&
156                                    (e instanceof NoSuchLayoutException)) {
157    
158                                    response.sendRedirect(noSuchEntryRedirect);
159                            }
160                            else {
161                                    PortalUtil.sendError(e, request, response);
162                            }
163    
164                            return null;
165                    }
166            }
167    
168            protected static Object[] fetchPlidAndPortletId(
169                            PermissionChecker permissionChecker, long groupId,
170                            String[] portletIds)
171                    throws Exception {
172    
173                    for (String portletId : portletIds) {
174                            long plid = PortalUtil.getPlidFromPortletId(groupId, portletId);
175    
176                            if (plid == LayoutConstants.DEFAULT_PLID) {
177                                    continue;
178                            }
179    
180                            Layout layout = LayoutLocalServiceUtil.getLayout(plid);
181    
182                            if (!LayoutPermissionUtil.contains(
183                                            permissionChecker, layout, ActionKeys.VIEW)) {
184    
185                                    continue;
186                            }
187    
188                            LayoutTypePortlet layoutTypePortlet =
189                                    (LayoutTypePortlet)layout.getLayoutType();
190    
191                            portletId = getPortletId(layoutTypePortlet, portletId);
192    
193                            return new Object[] {plid, portletId};
194                    }
195    
196                    return null;
197            }
198    
199            protected static Object[] getPlidAndPortletId(
200                            ThemeDisplay themeDisplay, long groupId, long plid,
201                            String[] portletIds)
202                    throws Exception {
203    
204                    if ((plid != LayoutConstants.DEFAULT_PLID) &&
205                            (groupId == themeDisplay.getScopeGroupId())) {
206    
207                            try {
208                                    Layout layout = LayoutLocalServiceUtil.getLayout(plid);
209    
210                                    LayoutTypePortlet layoutTypePortlet =
211                                            (LayoutTypePortlet)layout.getLayoutType();
212    
213                                    for (String portletId : portletIds) {
214                                            if (!layoutTypePortlet.hasPortletId(portletId, false) ||
215                                                    !LayoutPermissionUtil.contains(
216                                                            themeDisplay.getPermissionChecker(), layout,
217                                                            ActionKeys.VIEW)) {
218    
219                                                    continue;
220                                            }
221    
222                                            portletId = getPortletId(layoutTypePortlet, portletId);
223    
224                                            return new Object[] {plid, portletId};
225                                    }
226                            }
227                            catch (NoSuchLayoutException nsle) {
228                            }
229                    }
230    
231                    Object[] plidAndPortletId = fetchPlidAndPortletId(
232                            themeDisplay.getPermissionChecker(), groupId, portletIds);
233    
234                    if ((plidAndPortletId == null) &&
235                            SitesUtil.isUserGroupLayoutSetViewable(
236                                    themeDisplay.getPermissionChecker(),
237                                    themeDisplay.getScopeGroup())) {
238    
239                            plidAndPortletId = fetchPlidAndPortletId(
240                                    themeDisplay.getPermissionChecker(),
241                                    themeDisplay.getScopeGroupId(), portletIds);
242                    }
243    
244                    if (plidAndPortletId != null) {
245                            return plidAndPortletId;
246                    }
247    
248                    StringBundler sb = new StringBundler(portletIds.length * 2 + 5);
249    
250                    sb.append("{groupId=");
251                    sb.append(groupId);
252                    sb.append(", plid=");
253                    sb.append(plid);
254    
255                    for (String portletId : portletIds) {
256                            sb.append(", portletId=");
257                            sb.append(portletId);
258                    }
259    
260                    sb.append("}");
261    
262                    throw new NoSuchLayoutException(sb.toString());
263            }
264    
265            protected static String getPortletId(
266                    LayoutTypePortlet layoutTypePortlet, String portletId) {
267    
268                    for (String curPortletId : layoutTypePortlet.getPortletIds()) {
269                            String curRootPortletId = PortletConstants.getRootPortletId(
270                                    curPortletId);
271    
272                            if (portletId.equals(curRootPortletId)) {
273                                    return curPortletId;
274                            }
275                    }
276    
277                    return portletId;
278            }
279    
280            protected abstract long getGroupId(long primaryKey) throws Exception;
281    
282            protected abstract String getPrimaryKeyParameterName();
283    
284            protected abstract String getStrutsAction(
285                    HttpServletRequest request, String portletId);
286    
287            protected abstract String[] initPortletIds();
288    
289            protected PortletURL processPortletURL(
290                            HttpServletRequest request, PortletURL portletURL)
291                    throws Exception {
292    
293                    return portletURL;
294            }
295    
296            protected void setPrimaryKeyParameter(
297                            PortletURL portletURL, long primaryKey)
298                    throws Exception {
299    
300                    portletURL.setParameter(
301                            getPrimaryKeyParameterName(), String.valueOf(primaryKey));
302            }
303    
304            protected void setTargetGroup(
305                            HttpServletRequest request, long groupId, long plid)
306                    throws Exception {
307    
308                    ThemeDisplay themeDisplay = (ThemeDisplay)request.getAttribute(
309                            WebKeys.THEME_DISPLAY);
310    
311                    PermissionChecker permissionChecker =
312                            themeDisplay.getPermissionChecker();
313    
314                    Group group = GroupLocalServiceUtil.getGroup(groupId);
315                    Layout layout = LayoutLocalServiceUtil.getLayout(plid);
316    
317                    if ((groupId == layout.getGroupId()) ||
318                            (group.getParentGroupId() == layout.getGroupId()) ||
319                            (layout.isPrivateLayout() &&
320                             !SitesUtil.isUserGroupLayoutSetViewable(
321                                    permissionChecker, layout.getGroup()))) {
322    
323                            return;
324                    }
325    
326                    layout = new VirtualLayout(layout, group);
327    
328                    request.setAttribute(WebKeys.LAYOUT, layout);
329            }
330    
331            private static Log _log = LogFactoryUtil.getLog(FindAction.class);
332    
333            private String[] _portletIds;
334    
335    }