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/**
* @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, "<","<");
stringReplaceAll( translation, ">",">");
stringReplaceAll( translation, ""","\"");
stringReplaceAll( translation, "'","'");
stringReplaceAll( translation, "&","&");
stringReplaceAll( translation, "'","'");
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
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