Imported existing code

indra/newview/lltranslate.h

@@ -0,0 +1,125 @@
+/**
+* @file lltranslate.h
+* @brief Human language translation class and JSON response receiver.
+*
+* $LicenseInfo:firstyear=2009&license=viewergpl$
+*
+* Copyright (c) 2009, Linden Research, Inc.
+*
+* Second Life Viewer Source Code
+* The source code in this file ("Source Code") is provided by Linden Lab
+* to you under the terms of the GNU General Public License, version 2.0
+* ("GPL"), unless you have obtained a separate licensing agreement
+* ("Other License"), formally executed by you and Linden Lab. Terms of
+* the GPL can be found in doc/GPL-license.txt in this distribution, or
+* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+*
+* There are special exceptions to the terms and conditions of the GPL as
+* it is applied to this Source Code. View the full text of the exception
+* in the file doc/FLOSS-exception.txt in this software distribution, or
+* online at
+* http://secondlifegrid.net/programs/open_source/licensing/flossexception
+*
+* By copying, modifying or distributing this software, you acknowledge
+* that you have read and understood your obligations described above,
+* and agree to abide by those obligations.
+*
+* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+* COMPLETENESS OR PERFORMANCE.
+* $/LicenseInfo$
+*/
+
+#ifndef LL_LLTRANSLATE_H
+#define LL_LLTRANSLATE_H
+
+#include "llhttpclient.h"
+#include "llbufferstream.h"
+#include "jsoncpp/reader.h"
+
+class LLTranslate
+{
+public :
+	class TranslationReceiver: public LLHTTPClient::Responder
+	{
+	protected:
+		TranslationReceiver(const std::string &fromLang, const std::string &toLang)
+			: m_fromLang(fromLang),
+			m_toLang(toLang)
+		{
+		}
+
+		virtual void handleResponse(const std::string &translation, const std::string &recognizedLang) {}
+		virtual void handleFailure() {};
+
+	public:
+		~TranslationReceiver()
+		{
+		}
+
+		virtual void error(U32 status, const std::string& reason)
+		{
+			LL_WARNS("Translate") << "URL Request error: " << reason << LL_ENDL;
+			handleFailure();
+		}
+
+		virtual void completedRaw(
+			U32 status,
+			const std::string& reason,
+			const LLChannelDescriptors& channels,
+			const LLIOPipe::buffer_ptr_t& buffer)
+		{
+			LLBufferStream istr(channels, buffer.get());
+
+			std::stringstream strstrm;
+			strstrm << istr.rdbuf();
+			const std::string result = strstrm.str();
+
+			std::string translation;
+			std::string detectedLanguage;
+
+			if (!parseGoogleTranslate(result, translation, detectedLanguage))
+			{
+				handleFailure();
+				return;
+			}
+
+			// Fix up the response
+			stringReplaceAll( translation, "&lt;","<");
+			stringReplaceAll( translation, "&gt;",">");
+			stringReplaceAll( translation, "&quot;","\"");
+			stringReplaceAll( translation, "&#39;","'");
+			stringReplaceAll( translation, "&amp;","&");
+			stringReplaceAll( translation, "&apos;","'");
+
+			handleResponse(translation, detectedLanguage);
+		}
+
+	protected:
+		const std::string m_toLang;
+		const std::string m_fromLang;
+	};
+
+	static void translateMessage(LLHTTPClient::ResponderPtr &result, const std::string &fromLang, const std::string &toLang, const std::string &mesg);
+	static float m_GoogleTimeout;
+	static std::string getTranslateLanguage();
+
+private:
+	static void getTranslateUrl(std::string &translateUrl, const std::string &fromLang, const std::string &toLang, const std::string &text);
+	static void stringReplaceAll(std::string& context, const std::string& from, const std::string& to);
+	static BOOL parseGoogleTranslate(const std::string result, std::string &translation, std::string &detectedLanguage);
+
+	static LLSD m_Header;
+	static const char* m_GoogleURL;
+	static const char* m_GoogleLangSpec;
+	static const char* m_AcceptHeader;
+	static const char* m_AcceptType;
+	static const char* m_AgentHeader;
+	static const char* m_UserAgent;
+
+	static const char* m_GoogleData;
+	static const char* m_GoogleTranslation;
+	static const char* m_GoogleLanguage;
+};
+
+#endif