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/app.h

@@ -127,17 +127,10 @@ public:
 
 private:
 
-	enum Header
-	{
-		h_200,
-		h_404,
-		h_403
-	};
-
 	PostParser post_parser;
 	PostMultiParser post_multi_parser;
 	pt::SpaceParser space_parser;
-	std::string post_buffer;
+	pt::TextStream post_buffer;
 
 	CookieParser cookie_parser;
 	AcceptBaseParser accept_base_parser;
@@ -154,6 +147,7 @@ private:
 	//std::wstring html_filtered;
 	//std::string output_8bit;
 	pt::TextStream serialized_model;
+	pt::WTextStream post_log_tmp_buffer;
 
 	pt::WTextStream output_tmp_filtered_stream;
 	BinaryPage output_8bit;
@@ -196,6 +190,8 @@ private:
 	bool DropPrivileges(char * user, char * group);
 	bool DropPrivileges(const char * user, uid_t uid, gid_t gid, bool additional_groups);
 	bool CheckAccessFromPlugins();
+	void MakeRenameMeToABetterName();
+	bool AddRootDir();
 	void ProcessRequestThrow();
 	void ProcessRequest();
 	void BaseUrlRedirect(int code, bool add_subdomain);
@@ -205,7 +201,6 @@ private:
 	void CheckPostRedirect();
 	void UseEzcGenerator();
 	void AddDefaultModels();
-	void Make();
 	void SaveSessionsIfNeeded(); // !! IMPROVE ME wywalic do menagera sesji??
 	void LogAccess();
 	void SendData(const BinaryPage & page, FCGX_Stream * out);
@@ -251,6 +246,8 @@ private:
 	void ReadEnvHTTPVariables();
 	bool SaveEnvHTTPVariable(const char * env);
 	void ReadEnvRemoteIP();
+	void ReadInputPostToBuffer();
+	void ParsePostJson();
 	void ReadPostJson();
 	void ReadPostVars();
 
@@ -263,7 +260,7 @@ private:
 
 	bool IsRequestedFrame();
 
-	Header GetHTTPStatusCode();
+	void ModifyStatusCodeIfNeeded();
 	void PrepareSessionCookie();
 	void SendHeaders();
 	void SendCookies();
@@ -271,15 +268,15 @@ private:
 	bool AddHeader(const std::wstring & name, const std::wstring & value);
 	bool AddHeader(const wchar_t * name, const pt::WTextStream & value);
 	bool AddHeader(const std::wstring & name, const pt::WTextStream & value);
-	bool PrepareHeadersStaticCreateResource(pt::WTextStream & out_path);
-	void PrepareHeadersStatic();
+	bool CreateStaticResourcePath(pt::WTextStream & out_path);
+	void PrepareSendFileHeaderForStaticMountpoint();
 	void PrepareHeaderContentType();
-	void PrepareHeadersForbidden();
-	void PrepareHeadersRedirect();
-	void PrepareHeadersSendFile();
-	void PrepareHeadersCompression(int compress_encoding);
-	void PrepareHeadersNormal(Header header, size_t output_size);
-	void PrepareHeaders(bool compressing, int compress_encoding, Header header, size_t output_size);
+	void ModifyStatusForRedirect();
+	void PrepareSendFileHeader();
+	void PrepareContentEncodingHeader(int compress_encoding);
+	void PrepareContentLengthHeader(size_t output_size);
+	void PrepareHeaderStatus(int http_status);
+	void PrepareHeaders(bool compressing, int compress_encoding, size_t output_size);
 	int  SelectDeflateVersion();
 	void SelectCompression(size_t source_len, bool & compression_allowed, int & compression_encoding);
 	bool CanSendContent();