add http_client library, using libcurl

take out common http entities to http_common dir

libs/main/http_client/pihttpclient.h

@@ -0,0 +1,61 @@
+#ifndef pihttpclient_h
+#define pihttpclient_h
+
+#include "pihttptypes.h"
+#include "pip_http_client_export.h"
+
+
+class PIHTTPClientBase {
+public:
+	int __infoFunc(ssize_t dltotal, ssize_t dlnow, ssize_t ultotal, ssize_t ulnow);
+	int __debugFunc(int type, char * data, size_t size);
+};
+
+
+class PIP_HTTP_CLIENT_EXPORT PIHTTPClient: private PIHTTPClientBase {
+	friend class PIHTTPClientBase;
+	friend class CurlThreadPool;
+
+public:
+	static PIHTTPClient * create(const PIString & url, PIHTTP::Method method = PIHTTP::Method::Get, const PIHTTP::MessageConst & req = {});
+
+	PIHTTPClient * onFinish(std::function<void()> f);
+	PIHTTPClient * onFinish(std::function<void(const PIHTTP::MessageConst &)> f);
+	PIHTTPClient * onError(std::function<void()> f);
+	PIHTTPClient * onError(std::function<void(const PIHTTP::MessageConst &)> f);
+	PIHTTPClient * onAbort(std::function<void()> f);
+	PIHTTPClient * onAbort(std::function<void(const PIHTTP::MessageConst &)> f);
+
+	void start();
+	void abort();
+
+	PIString lastError() const { return last_error; }
+
+private:
+	NO_COPY_CLASS(PIHTTPClient)
+	PIHTTPClient();
+	virtual ~PIHTTPClient();
+
+	PRIVATE_DECLARATION(PIP_HTTP_CLIENT_EXPORT)
+
+	bool init();
+	void perform();
+	void procHeaderLine(PIString & line);
+
+	static size_t writeMemoryFunc(void * contents, size_t size, size_t nmemb, void * ptr);
+	static size_t readMemoryFunc(void * contents, size_t size, size_t nmemb, void * ptr);
+	static size_t headerFunc(char * contents, size_t size, size_t nmemb, void * ptr);
+	int infoFunc(ssize_t dltotal, ssize_t dlnow, ssize_t ultotal, ssize_t ulnow);
+	int debugFunc(int type, char * data, size_t size);
+
+	PIString url;
+	PIString last_error;
+	PIByteArray buffer_out;
+	PIHTTP::MessageMutable request, reply;
+	std::atomic_bool is_cancel = {false};
+	ssize_t read_pos           = 0;
+	std::function<void(const PIHTTP::MessageConst &)> on_finish, on_error, on_abort;
+};
+
+
+#endif

libs/main/http_client/pihttpclientmodule.h

@@ -0,0 +1,54 @@
+/*
+    PIP - Platform Independent Primitives
+    Module includes
+    Ivan Pelipenko peri4ko@yandex.ru, Andrey Bychkov work.a.b@yandex.ru
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+//! \defgroup HTTPServer HTTPServer
+//! \~\brief
+//! \~english HTTP client
+//! \~russian HTTP сервер
+//!
+//! \~\details
+//! \~english \section cmake_module_HTTPServer Building with CMake
+//! \~russian \section cmake_module_HTTPServer Сборка с использованием CMake
+//!
+//! \~\code
+//! find_package(PIP REQUIRED)
+//! target_link_libraries([target] PIP::HTTPServer)
+//! \endcode
+//!
+//! \~english \par Common
+//! \~russian \par Общее
+//!
+//! \~english
+//! These files provides HTTP server based on libmicrohttpd
+//!
+//! \~russian
+//! Эти файлы обеспечивают HTTP сервер, основанный на libmicrohttpd
+//!
+//! \~\authors
+//! \~english
+//! Ivan Pelipenko peri4ko@yandex.ru;
+//! \~russian
+//! Иван Пелипенко peri4ko@yandex.ru;
+//!
+
+#ifndef pihttpclientmodule_H
+#define pihttpclientmodule_H
+
+#include "pihttpclient.h"
+
+#endif