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/**
* @file lltranslate.h
* @brief Human language translation class and JSON response receiver.
*
* $LicenseInfo:firstyear=2009&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library 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;
* version 2.1 of the License only.
*
* This library 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LL_LLTRANSLATE_H
#define LL_LLTRANSLATE_H
#include "llhttpclient.h"
#include "llbufferstream.h"
class LLTranslate
{
LOG_CLASS(LLTranslate);
public :
class TranslationReceiver: public LLHTTPClient::Responder
{
protected:
TranslationReceiver(const std::string &from_lang, const std::string &to_lang)
: m_fromLang(from_lang),
m_toLang(to_lang)
{
}
virtual void handleResponse(const std::string &translation, const std::string &recognized_lang) {};
virtual void handleFailure() {};
public:
~TranslationReceiver()
{
}
virtual void completedRaw( U32 status,
const std::string& reason,
const LLChannelDescriptors& channels,
const LLIOPipe::buffer_ptr_t& buffer)
{
if (200 <= status && status < 300)
{
LLBufferStream istr(channels, buffer.get());
std::stringstream strstrm;
strstrm << istr.rdbuf();
const std::string result = strstrm.str();
std::string translation;
std::string detected_language;
if (!parseGoogleTranslate(result, translation, detected_language))
{
handleFailure();
return;
}
// Fix up the response
LLStringUtil::replaceString(translation, "<", "<");
LLStringUtil::replaceString(translation, ">",">");
LLStringUtil::replaceString(translation, ""","\"");
LLStringUtil::replaceString(translation, "'","'");
LLStringUtil::replaceString(translation, "&","&");
LLStringUtil::replaceString(translation, "'","'");
handleResponse(translation, detected_language);
}
else
{
LL_WARNS("Translate") << "HTTP request for Google Translate failed with status " << status << ", reason: " << reason << LL_ENDL;
handleFailure();
}
}
protected:
const std::string m_toLang;
const std::string m_fromLang;
};
static void translateMessage(LLHTTPClient::ResponderPtr &result, const std::string &from_lang, const std::string &to_lang, const std::string &mesg);
static float m_GoogleTimeout;
static std::string getTranslateLanguage();
private:
static void getTranslateUrl(std::string &translate_url, const std::string &from_lang, const std::string &to_lang, const std::string &text);
static bool parseGoogleTranslate(const std::string& body, std::string &translation, std::string &detected_language);
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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