Switch web.xml baseFolder from context-param to env-entry

Change-Id: Id18077126e984a767725cf9e8d8eb531a14e1713

releases.moxie

 	- Dashboard and Activity pages now obey the web.generateActivityGraph setting (issue-310)
 	- Do not log passwords on failed authentication attempts (issue-316)
 	- Updated default binary and Lucene ignore extensions
+	- Change the WAR baseFolder context parameter to a JNDI env-entry to improve enterprise deployments
     additions:
 	- Added branch graph image servlet based on EGit's branch graph renderer (issue-194)
 	- Added option to render Markdown commit messages (issue-203)
 	- Bret Ikehara
 	- Chad Horohoe
 	- Domingo Oropeza
+	- Chris Graham
 }
 
 #

src/main/java/WEB-INF/web.xml

 		review the defaults for any new settings.  Settings are always versioned
 		with a SINCE x.y.z attribute and also noted in the release changelog.
 		-->
-	<context-param>
-		<param-name>baseFolder</param-name>
-		<param-value>${contextFolder}/WEB-INF/data</param-value>
-	</context-param>
+	<env-entry>
+		<description>The base folder is used to specify the root location of your Gitblit data.</description>
+		<env-entry-name>baseFolder</env-entry-name>
+		<env-entry-type>java.lang.String</env-entry-type>
+		<env-entry-value>${contextFolder}/WEB-INF/data</env-entry-value>
+	</env-entry>
 	
 	<!-- Gitblit Displayname -->
 	<display-name>

src/main/java/com/gitblit/GitBlit.java

 import javax.mail.MessagingException;
 import javax.mail.internet.MimeBodyPart;
 import javax.mail.internet.MimeMultipart;
+import javax.naming.Context;
+import javax.naming.InitialContext;
+import javax.naming.NamingException;
 import javax.servlet.ServletContext;
 import javax.servlet.ServletContextEvent;
 import javax.servlet.ServletContextListener;
 					logger.error("");
 				}
 
+				try {
+					// try to lookup JNDI env-entry for the baseFolder
+					InitialContext ic = new InitialContext();
+					Context env = (Context) ic.lookup("java:comp/env");
+					String val = (String) env.lookup("baseFolder");
+					if (!StringUtils.isEmpty(val)) {
+						path = val;
+					}
+				} catch (NamingException n) {
+					logger.error("Failed to get JNDI env-entry: " + n.getExplanation());
+				}
+
 				File base = com.gitblit.utils.FileUtils.resolveParameter(Constants.contextFolder$, contextFolder, path);
 				base.mkdirs();