remove Request::post_tab and add Request::http_status

Instead of Reqest::post_tab we use now Request::post_in (pt::Space).

Request::http_status will be used instead Request::status,
but at the moment is not changed in all places.
Request::status has been marked as depracated.

While here:
- Check for root dir in App and not in FunctionParser,
let FunctionParser only log the root dir.
- Read post variables after parsing url parameters,
this allows winix functions to set limits
for post input.
- Set limits when parsing input json format, new
options added to config: post_max_object_items, post_max_table_items,
post_max_all_items, post_max_nested_objects.
There are similar options in each winix function (they are in
FunctionBase).
- Some refactoring in App.
- Add config option: log_whole_http_post if true
then the whole parsed post input is logged.
- Add config option: post_json_max - max length of input stream
for parsing json.
- Add config option: templates_request_status, default request_status.html
this is an ezc template used as [content] when the request status
is not 200_ok.
- Fix: Sort winix function didn't show items to sort (fix and do some
refactoring as well)
- Properly sort items in: ImgCrop, Ls, Sort, Upload
- Remove ezc templates: err_404.html, err_per_denied.html - now
request_status.html is used.

winixd/core/request.h

@@ -161,11 +161,9 @@ public:
 		!! CHECK ME may post_tab and cookie_tab should be changed to pt::Space now?
 		or may change the name to cookie_in? or in_cookie?
 	*/
-	PostTab     post_tab;
 	PostFileTab post_file_tab;
 	CookieTab   cookie_tab;
 	pt::Space	post_in;
-	bool 		is_postin_used;// temporarily, before all post variables will be put to post_in
 
 	// input headers (without cookies)
 	// at the moment we are using FastCGI and HTTP headers are prefixed with 'HTTP_' string
@@ -337,9 +335,15 @@ public:
 	std::vector<HeaderValue> accept_languages;
 
 	// request status
-	// !! CHANGE ME it'll be better to use ordinary http result codes
+	// DEPRECATED, use http_status instead
 	Error status;
 
+	/*
+	 * HTTP result status
+	 * at the moment default is -1 which means it is not used (use status in such a case)
+	 */
+	int http_status;
+
 	// if not empty means an address for redirecting to
 	// it should be url-encoded
 	std::wstring redirect_to;
@@ -443,6 +447,9 @@ public:
 	void RemoveParam(const wchar_t * param_name);
 	void RemoveParam(const std::wstring & param_name);
 
+	bool AddPostVar(const wchar_t * name, const wchar_t * value);
+	bool AddPostVar(const std::wstring & name, const std::wstring & value);
+
 	bool IsPostVar(const wchar_t * var);
 	bool IsPostVar(const std::wstring & var);
 	const std::wstring & PostVar(const wchar_t * var);				// returns an empty string if there is no such a parameter
@@ -452,8 +459,6 @@ public:
 	std::wstring * PostVarp(const wchar_t * var);
 	std::wstring * PostVarp(const std::wstring & var);
 
-	bool AllPostVarEmpty(); // returning true if all post vars are empty
-
 
 	// setting a cookie
 	// name  - cookie name (either const wchar_t, or std::wstring or pt::WTextStream)
@@ -485,6 +490,9 @@ private:
 	void current_dir(morm::Wrapper & wrapper);
 	void last_item_wrapper(morm::Wrapper & wrapper);
 
+	void http_status_error_title(EzcEnv & env);
+	void http_status_error_description(EzcEnv & env);
+
 
 	MORM_MEMBER_FIELD(Request)