Support multilang, update code

Signed-off-by: R4SAS <r4sas@i2pmail.org>

libi2pd/Config.cpp

@@ -93,6 +93,7 @@ namespace config {
 			("http.strictheaders", value<bool>()->default_value(true),          "Enable strict host checking on WebUI")
 			("http.hostname", value<std::string>()->default_value("localhost"), "Expected hostname for WebUI")
 			("http.webroot", value<std::string>()->default_value("/"),          "WebUI root path (default: / )")
+			("http.lang", value<std::string>()->default_value("english"),       "WebUI language (default: english )")
 		;
 
 		options_description httpproxy("HTTP Proxy options");

libi2pd/FS.cpp

@@ -12,6 +12,7 @@
 #ifdef _WIN32
 #include <shlobj.h>
 #include <windows.h>
+#include <codecvt>
 #endif
 
 #include "Base.h"
@@ -41,6 +42,18 @@ namespace fs {
 		return dataDir;
 	}
 
+	const std::string GetUTF8DataDir () {
+#ifdef _WIN32
+		boost::filesystem::wpath path (dataDir);
+		auto loc = boost::filesystem::path::imbue(std::locale( std::locale(), new std::codecvt_utf8_utf16<wchar_t>() ) ); // convert path to UTF-8
+		auto dataDirUTF8 = path.string();
+		boost::filesystem::path::imbue(loc); // Return locale settings back
+		return dataDirUTF8;
+#else
+		return dataDir; // linux, osx, android uses UTF-8 by default
+#endif
+	}
+
 	void DetectDataDir(const std::string & cmdline_param, bool isService) {
 		if (cmdline_param != "") {
 			dataDir = cmdline_param;

libi2pd/FS.h

@@ -75,6 +75,9 @@ namespace fs {
 	/** @brief Returns datadir path */
 	const std::string & GetDataDir();
 
+	/** @brief Returns datadir path in UTF-8 encoding */
+	const std::string GetUTF8DataDir();
+
 	/**
 	 * @brief Set datadir either from cmdline option or using autodetection
 	 * @param cmdline_param  Value of cmdline parameter --datadir=<something>

libi2pd/RouterContext.cpp

@@ -29,7 +29,7 @@ namespace i2p
 	RouterContext::RouterContext ():
 		m_LastUpdateTime (0), m_AcceptsTunnels (true), m_IsFloodfill (false),
 		m_ShareRatio (100), m_Status (eRouterStatusUnknown), m_StatusV6 (eRouterStatusUnknown),
-		m_Error (eRouterErrorNone), m_NetID (I2PD_NET_ID)
+		m_Error (eRouterErrorNone), m_NetID (I2PD_NET_ID), m_Language (eEnglish)
 	{
 	}
 
@@ -916,6 +916,11 @@ namespace i2p
 		}
 	}
 
+	void RouterContext::SetLanguage (Lang language)
+	{
+		m_Language = language;
+	}
+
 	i2p::crypto::X25519Keys& RouterContext::GetStaticKeys ()
 	{
 		if (!m_StaticKeys)

libi2pd/RouterContext.h

@@ -24,7 +24,7 @@ namespace i2p
 namespace garlic
 {
 	class RouterIncomingRatchetSession;
-}	
+}
 
 	const char ROUTER_INFO[] = "router.info";
 	const char ROUTER_KEYS[] = "router.keys";
@@ -39,7 +39,7 @@ namespace garlic
 		eRouterStatusError = 3,
 		eRouterStatusUnknown = 4,
 		eRouterStatusProxy = 5,
-		eRouterStatusMesh = 6	
+		eRouterStatusMesh = 6
 	};
 
 	enum RouterError
@@ -49,7 +49,12 @@ namespace garlic
 		eRouterErrorOffline = 2,
 		eRouterErrorSymmetricNAT = 3
 	};
-	
+
+	enum Lang {
+		eEnglish = 0,
+		eRussian
+	};
+
 	class RouterContext: public i2p::garlic::GarlicDestination
 	{
 		private:
@@ -144,6 +149,10 @@ namespace garlic
 			void ProcessGarlicMessage (std::shared_ptr<I2NPMessage> msg);
 			void ProcessDeliveryStatusMessage (std::shared_ptr<I2NPMessage> msg);
 
+			// i18n
+			Lang GetLanguage () const { return m_Language; };
+			void SetLanguage (Lang language);
+
 		protected:
 
 			// implements GarlicDestination
@@ -178,6 +187,9 @@ namespace garlic
 			std::unique_ptr<i2p::crypto::X25519Keys> m_StaticKeys;
 			// for ECIESx25519
 			std::unique_ptr<i2p::crypto::NoiseSymmetricState> m_InitialNoiseState, m_CurrentNoiseState;
+
+			// i18n
+			Lang m_Language;
 	};
 
 	extern RouterContext context;