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1
19
20 package com.sslexplorer.applications.actions;
21
22 import java.io.BufferedReader  ;
23 import java.io.File ;
24 import java.io.FileInputStream ;
25 import java.io.InputStream ;
26 import java.io.InputStreamReader ;
27 import java.io.OutputStream ;
28 import java.io.OutputStreamWriter ;
29 import java.io.PrintWriter ;
30 import java.net.URL ;
31 import java.util.Iterator ;
32 import java.util.Map ;
33 import java.util.StringTokenizer ;
34 import java.util.regex.Matcher ;
35 import java.util.regex.Pattern ;
36
37 import javax.servlet.http.HttpServletRequest ;
38 import javax.servlet.http.HttpServletResponse ;
39
40 import org.apache.commons.logging.Log;
41 import org.apache.commons.logging.LogFactory;
42 import org.apache.struts.action.ActionForm;
43 import org.apache.struts.action.ActionForward;
44 import org.apache.struts.action.ActionMapping;
45
46 import com.sslexplorer.applications.ApplicationShortcut;
47 import com.sslexplorer.applications.ApplicationShortcutEventConstants;
48 import com.sslexplorer.applications.types.HtmlType;
49 import com.sslexplorer.boot.HttpConstants;
50 import com.sslexplorer.boot.ReplacementEngine;
51 import com.sslexplorer.boot.Replacer;
52 import com.sslexplorer.boot.Util;
53 import com.sslexplorer.core.CoreAttributeConstants;
54 import com.sslexplorer.core.CoreEvent;
55 import com.sslexplorer.core.CoreServlet;
56 import com.sslexplorer.core.actions.AuthenticatedAction;
57 import com.sslexplorer.core.stringreplacement.VariableReplacement;
58 import com.sslexplorer.extensions.ExtensionDescriptor;
59 import com.sslexplorer.extensions.store.ExtensionStore;
60 import com.sslexplorer.policyframework.LaunchSession;
61 import com.sslexplorer.policyframework.LaunchSessionFactory;
62 import com.sslexplorer.policyframework.Policy;
63 import com.sslexplorer.policyframework.PolicyDatabaseFactory;
64 import com.sslexplorer.policyframework.ResourceAccessEvent;
65 import com.sslexplorer.security.Constants;
66 import com.sslexplorer.security.SessionInfo;
67
68
91 public class GetHTMLApplicationAction extends AuthenticatedAction {
92
93 final static Log log = LogFactory.getLog(GetHTMLApplicationAction.class);
94 final static String VARIABLE_PATTERN = "\\$\\{[^}]*\\}";
95
96
99 public GetHTMLApplicationAction() {
100 super();
101 }
102
103
106 public ActionForward onExecute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)
107 throws Exception {
108 String launchSessionId = request.getParameter(LaunchSession.LAUNCH_ID);
109 LaunchSession launchSession = LaunchSessionFactory.getInstance().getLaunchSession(launchSessionId);
110 if (launchSession == null) {
111 throw new Exception ("No launch session id " + launchSessionId);
112 }
113 final ApplicationShortcut shortcut = (ApplicationShortcut)launchSession.getResource();
114 launchSession.checkAccessRights(null, getSessionInfo(request));
115 ExtensionDescriptor app = ExtensionStore.getInstance().getExtensionDescriptor(shortcut.getApplication());
116 if (app == null) {
117 throw new Exception ("No application named " + shortcut.getApplication() + ".");
118 }
119
120 if (!(app.getExtensionType() instanceof HtmlType)) {
121 throw new Exception (getClass().getName() + " only supports applications of type " + HtmlType.class + ".");
122 }
123
124
126 HtmlType type = (HtmlType) app.getExtensionType();
127 File file = new File (app.getApplicationBundle().getBaseDir(), type.getTemplate());
128 if (log.isDebugEnabled())
129 log.debug("Loading template " + file.getAbsolutePath());
130
131 InputStream in = null;
132 StringBuffer template = new StringBuffer ((int) file.length());
133 try {
134 in = new FileInputStream (file);
135 String line = null;
136 BufferedReader reader = new BufferedReader (new InputStreamReader (in));
137 while ((line = reader.readLine()) != null) {
138 if (template.length() != 0) {
139 template.append("\n");
140 }
141 template.append(line);
142 }
143 } finally {
144 Util.closeStream(in);
145 }
146
147 if (log.isDebugEnabled())
148 log.debug("Parsing parameters.");
149 for (Iterator i = shortcut.getParameters().entrySet().iterator(); i.hasNext();) {
150 Map.Entry entry = (Map.Entry ) i.next();
151 String content = (String ) entry.getValue();
152
153 VariableReplacement r = new VariableReplacement();
154 r.setApplicationShortcut(app, null);
155 r.setServletRequest(request);
156 r.setLaunchSession(launchSession);
157
158 entry.setValue(r.replace(content));
159 }
160
161 if (log.isDebugEnabled())
162 log.debug("Template loaded, doing standard replacements.");
163
164 VariableReplacement r = new VariableReplacement();
165 r.setApplicationShortcut(app, shortcut.getParameters());
166 r.setServletRequest(request);
167 r.setLaunchSession(launchSession);
168 String templateText = r.replace(template.toString());
169
170 ReplacementEngine engine = new ReplacementEngine();
171
172 String tunnels = request.getParameter("tunnels");
173 if (tunnels != null && !tunnels.equals("")) {
174 StringTokenizer t = new StringTokenizer (tunnels, ",");
175 while (t.hasMoreTokens()) {
176 String name = null;
177 String hostname = null;
178 int port = -1;
179 try {
180 String tunnel = t.nextToken();
181 StringTokenizer t2 = new StringTokenizer (tunnel, ":");
182 name = t2.nextToken();
183 hostname = t2.nextToken();
184 port = Integer.parseInt(t2.nextToken());
185 } catch (Exception e) {
186 throw new Exception ("Failed to parse tunnels parameter '" + tunnels + "'.", e);
187 }
188 final ExtensionDescriptor.TunnelDescriptor tunnelDescriptor = app.getTunnel(name);
189 if (tunnelDescriptor == null) {
190 throw new Exception ("No tunnel named " + name);
191 }
192 final String fHostname = hostname;
193 final int fPort = port;
194 String pattern = "\\$\\{tunnel:" + name + "\\.[^\\}]*\\}";
195 engine.addPattern(pattern, new Replacer() {
196 public String getReplacement(Pattern pattern, Matcher matcher, String sequence) {
197 String match = matcher.group();
198 if (match.equals("${tunnel:" + tunnelDescriptor.getName() + ".hostname}")) {
199 return fHostname;
200 } else if (match.equals("${tunnel:" + tunnelDescriptor.getName() + ".port}")) {
201 return String.valueOf(fPort);
202 } else {
203 return "";
204 }
205 }
206 }, null);
207
208 }
209 }
210
211 String url = request.getParameter("sslexplorer");
213 if (url != null) {
214 String host = request.getHeader(HttpConstants.HDR_HOST);
215 if (host != null) {
216 url = (request.isSecure() ? "https" : "http") + "://" + host;
217 } else {
218
219 throw new Exception ("No sslexplorer parameter supplied.");
220 }
221 }
222 final URL sslexplorerUrl = new URL (url);
223 engine.addPattern("\\$\\{sslexplorer:[^\\}]*\\}", new Replacer() {
224 public String getReplacement(Pattern pattern, Matcher matcher, String sequence) {
225 String match = matcher.group();
226 try {
227 String param = match.substring(14, match.length() - 1);
228 if (param.equals("host")) {
229 return sslexplorerUrl.getHost();
230 } else if (param.equals("port")) {
231 return String.valueOf(sslexplorerUrl.getPort() == -1 ? (sslexplorerUrl.getProtocol().equals("https") ? 443
232 : 80) : sslexplorerUrl.getPort());
233 } else if (param.equals("protocol")) {
234 return sslexplorerUrl.getProtocol();
235 } else {
236 throw new Exception ("Unknow variable.");
237 }
238 } catch (Throwable t) {
239 log.error("Failed to replace " + match + ".", t);
240 }
241 return "";
242 }
243 }, null);
244
245 String processed = engine.replace(templateText);
246 if (log.isDebugEnabled())
247 log.debug("Returning " + processed);
248
249 Util.noCache(response);
250
251 response.setContentType("text/html");
252 response.setContentLength(processed.length());
253 request.setAttribute(Constants.REQ_ATTR_COMPRESS, Boolean.FALSE);
254
255 OutputStream out = response.getOutputStream();
256 PrintWriter pw = new PrintWriter (new OutputStreamWriter (out));
257 pw.print(processed);
258 pw.flush();
259
260 Policy pol = PolicyDatabaseFactory.getInstance().getGrantingPolicyForUser(launchSession.getSession().getUser(), shortcut);
261 CoreServlet.getServlet().fireCoreEvent(new ResourceAccessEvent(this, ApplicationShortcutEventConstants.APPLICATION_SHORTCUT_LAUNCHED, shortcut, pol, launchSession.getSession(), CoreEvent.STATE_SUCCESSFUL)
262 .addAttribute(CoreAttributeConstants.EVENT_ATTR_APPLICATION_NAME, app.getName())
263 .addAttribute(CoreAttributeConstants.EVENT_ATTR_APPLICATION_ID, shortcut.getApplication()));
264
266 return null;
267 }
268
269
272 public int getNavigationContext(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) {
273 return SessionInfo.MANAGEMENT_CONSOLE_CONTEXT | SessionInfo.USER_CONSOLE_CONTEXT;
274 }
275 }
276 |
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