added: config: base_url_redirect

when true the server checks whether HTTP_HOST environment variable
       is the same as base_url from the config (of course without the 'http://' part
       and the last slash) - if it's not the same then the server
       redirects you into a new location base_url+REQUEST_URI
changed: variables env_* from Request are never null (after Request::Read())
       if the server didn't set such a variable it will be pointing into an empty string "\0"


git-svn-id: svn://ttmath.org/publicrep/cmslu/trunk@465 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/data.h

@@ -13,6 +13,7 @@
 #include <string>
 #include <vector>
 #include <map>
+#include <string.h>
 
 #include "misc.h"
 #include "item.h"
@@ -64,6 +65,11 @@ public:
 	std::string base_url;
 	std::string http_session_id_name;
 
+	// when the HOST_HTTP environment variable doesn't point into 'base_url' (the part 'http://' and the last slash is removed)
+	// the server will redirect into 'base_url' + 'REQUEST_URI'
+	// it's useful when you want to redirect from 'mydomain.tld' into 'www.mydomain.tld' etc.
+	bool base_url_redirect;
+
 	// if there is one item in a directory 
 	// it will be showed
 	// (instead of showing directory contents)
@@ -73,21 +79,29 @@ public:
 	// end config members
 	// -----------------------------------------------------------------
 
-
-
 		
 	// false at the beginning
 	bool stdout_is_closed;
 
-	// true if there was the SIGHUP signal
+	// true if there was SIGHUP signal
 	volatile bool signal_hup;
 
+	// contains current directories tree
 	Dir dir;
 
+	// based on base_url
+	// set by SetAdditionalVariables()
+	std::string base_url_http_host;
 
-
+	// call this method after the config file is read
+	void SetAdditionalVariables();
+	
 
 	Data();
+
+
+private: 
+	void SetHttpHost();
 };