Support multilang, update code

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

contrib/i2pd.conf

@@ -103,6 +103,9 @@ port = 7070
 # auth = true
 # user = i2pd
 # pass = changeme
+## Select webconsole language
+## Currently supported only english (default) and russian languages
+# lang = english
 
 [httpproxy]
 ## Uncomment and set to 'false' to disable HTTP Proxy

daemon/Daemon.cpp

@@ -343,6 +343,13 @@ namespace util
 			LogPrint(eLogInfo, "Daemon: using hidden mode");
 			i2p::data::netdb.SetHidden(true);
 		}
+
+		std::string httpLang; i2p::config::GetOption("http.lang", httpLang);
+		if (!httpLang.compare("russian"))
+			i2p::context.SetLanguage (eRussian);
+		else
+			i2p::context.SetLanguage (eEnglish);
+
 		return true;
 	}
 

daemon/HTTPServer.cpp

@@ -32,11 +32,6 @@
 #include "ECIESX25519AEADRatchetSession.h"
 #include "I18N.h"
 
-#ifdef _WIN32
-#include <boost/filesystem.hpp>
-#include <codecvt>
-#endif
-
 #ifdef WIN32_APP
 #include "Win32App.h"
 #endif
@@ -136,20 +131,6 @@ namespace http {
 	static std::string ConvertTime (uint64_t time);
 	std::map<uint32_t, uint32_t> HTTPConnection::m_Tokens;
 
-	std::string DataPath;
-
-	static void SetDataDir ()
-	{
-#ifdef _WIN32
-		boost::filesystem::wpath path (i2p::fs::GetDataDir());
-		auto loc = boost::filesystem::path::imbue(std::locale( std::locale(), new std::codecvt_utf8_utf16<wchar_t>() ) );
-		i2p::http::DataPath = path.string();
-		boost::filesystem::path::imbue(loc); // Return it back
-#else
-		i2p::http::DataPath = i2p::fs::GetDataDir();
-#endif
-	}
-
 	static void ShowUptime (std::stringstream& s, int seconds)
 	{
 		int num;
@@ -331,7 +312,7 @@ namespace http {
 		s << "<b>Transit:</b> ";
 		ShowTraffic (s, i2p::transport::transports.GetTotalTransitTransmittedBytes ());
 		s << " (" << (double) i2p::transport::transports.GetTransitBandwidth () / 1024 << " KiB/s)<br>\r\n";
-		s << "<b>Data path:</b> " << i2p::http::DataPath << "<br>\r\n";
+		s << "<b>Data path:</b> " << i2p::fs::GetUTF8DataDir() << "<br>\r\n";
 		s << "<div class='slide'>";
 		if((outputFormat==OutputFormatEnum::forWebConsole)||!includeHiddenContent) {
 			s << "<label for=\"slide-info\">Hidden content. Press on text to see.</label>\r\n<input type=\"checkbox\" id=\"slide-info\" />\r\n<div class=\"slidecontent\">\r\n";
@@ -1390,8 +1371,6 @@ namespace http {
 			LogPrint(eLogInfo, "HTTPServer: password set to ", pass);
 		}
 
-		i2p::http::SetDataDir();
-
 		m_IsRunning = true;
 		m_Thread.reset (new std::thread (std::bind (&HTTPServer::Run, this)));
 		m_Acceptor.listen ();

i18n/English.cpp

@@ -0,0 +1,56 @@
+#include <map>
+#include <vector>
+#include <string>
+
+// Russian localization file
+
+namespace i2p {
+namespace i18n {
+namespace english { // language
+
+	// See for language plural forms here:
+	// https://localization-guide.readthedocs.io/en/latest/l10n/pluralforms.html
+	int plural (int n) {
+		return n != 1 ? 1 : 0;
+	}
+
+	static std::map<std::string, std::string> strings
+	{
+		{"Enabled", "Enabled"},
+		{"Disabled", "Disabled"}
+	};
+
+	static std::map<std::string, std::vector<std::string>> plurals
+	{
+		{"days",    {"day", "days"}},
+		{"hours",   {"hour", "hours"}},
+		{"minutes", {"minute", "minutes"}},
+		{"seconds", {"second", "seconds"}}
+	};
+
+	std::string GetString (std::string arg)
+	{
+		auto it = strings.find(arg);
+		if (it == strings.end())
+		{
+			return arg;
+		} else {
+			return it->second;
+		}
+	}
+
+	std::string GetPlural (std::string arg, int n)
+	{
+		auto it = plurals.find(arg);
+		if (it == plurals.end())
+		{
+			return arg;
+		} else {
+			int form = plural(n);
+			return it->second[form];
+		}
+	}
+
+} // language
+} // i18n
+} // i2p

i18n/I18N.h

@@ -9,9 +9,16 @@
 #ifndef __I18N_H__
 #define __I18N_H__
 
+#include "RouterContext.h"
+
 namespace i2p {
 namespace i18n {
 
+	namespace english {
+		std::string GetString (std::string arg);
+		std::string GetPlural (std::string arg, int n);
+	}
+
 	namespace russian {
 		std::string GetString (std::string arg);
 		std::string GetPlural (std::string arg, int n);
@@ -19,13 +26,23 @@ namespace i18n {
 
 	std::string translate (std::string arg)
 	{
-		return i2p::i18n::russian::GetString (arg);
+		switch (i2p::context.GetLanguage ())
+		{
+			case eEnglish: return i2p::i18n::english::GetString (arg);
+			case eRussian: return i2p::i18n::russian::GetString (arg);
+			default: return arg;
+		}
 	}
 
 	template<typename inttype>
 	std::string translate (std::string arg, inttype&& n)
 	{
-		return i2p::i18n::russian::GetPlural (arg, (int) n);
+		switch (i2p::context.GetLanguage ())
+		{
+			case eEnglish: return i2p::i18n::english::GetPlural (arg, (int) n);
+			case eRussian: return i2p::i18n::russian::GetPlural (arg, (int) n);
+			default: return arg;
+		}
 	}
 
 } // i18n

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

@@ -50,6 +50,11 @@ namespace garlic
 		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;