3f1fb9a66e
Introduces AIHTTPTimeoutPolicy objects which do not just specify a single "timeout" in seconds, but a plethora of timings related to the life cycle of the average HTTP transaction. This knowledge is that moved to the Responder being used instead of floating constants hardcoded in the callers of http requests. This assumes that the same timeout policy is wanted for each transaction that uses the same Responder, which can be enforced is needed. I added a AIHTTPTimeoutPolicy for EVERY responder, only to make it easier later to tune timeout values and/or to get feedback about which responder runs into HTTP errors in debug output (especially time outs), so that they can be tuned later. If we already understood exactly what we were doing then most responders could have been left alone and just return the default timeout policy: by far most timeout policies are just a copy of the default policy, currently. This commit is not finished... It's a work in progress (viewer runs fine with it though).
131 lines
4.0 KiB
C++
131 lines
4.0 KiB
C++
/**
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* @file lltranslate.h
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* @brief Human language translation class and JSON response receiver.
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*
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* $LicenseInfo:firstyear=2009&license=viewergpl$
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*
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* Copyright (c) 2009, Linden Research, Inc.
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*
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* Second Life Viewer Source Code
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* The source code in this file ("Source Code") is provided by Linden Lab
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* to you under the terms of the GNU General Public License, version 2.0
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* ("GPL"), unless you have obtained a separate licensing agreement
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* ("Other License"), formally executed by you and Linden Lab. Terms of
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* the GPL can be found in doc/GPL-license.txt in this distribution, or
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* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
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*
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* There are special exceptions to the terms and conditions of the GPL as
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* it is applied to this Source Code. View the full text of the exception
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* in the file doc/FLOSS-exception.txt in this software distribution, or
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* online at
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* http://secondlifegrid.net/programs/open_source/licensing/flossexception
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*
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* By copying, modifying or distributing this software, you acknowledge
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* that you have read and understood your obligations described above,
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* and agree to abide by those obligations.
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*
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* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
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* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
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* COMPLETENESS OR PERFORMANCE.
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* $/LicenseInfo$
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*/
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#ifndef LL_LLTRANSLATE_H
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#define LL_LLTRANSLATE_H
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#include "llhttpclient.h"
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#include "llbufferstream.h"
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#include "json/reader.h"
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class AIHTTPTimeoutPolicy;
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extern AIHTTPTimeoutPolicy translationReceiver_timeout;
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class LLTranslate
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{
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public :
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class TranslationReceiver: public LLHTTPClient::Responder
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{
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protected:
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TranslationReceiver(const std::string &fromLang, const std::string &toLang)
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: m_fromLang(fromLang),
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m_toLang(toLang)
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{
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}
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virtual void handleResponse(const std::string &translation, const std::string &recognizedLang) {}
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virtual void handleFailure() {};
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public:
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~TranslationReceiver()
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{
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}
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virtual void error(U32 status, const std::string& reason)
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{
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LL_WARNS("Translate") << "URL Request error: " << reason << LL_ENDL;
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handleFailure();
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}
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virtual AIHTTPTimeoutPolicy const& getHTTPTimeoutPolicy(void) const { return translationReceiver_timeout; }
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virtual void completedRaw(
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U32 status,
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const std::string& reason,
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const LLChannelDescriptors& channels,
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const LLIOPipe::buffer_ptr_t& buffer)
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{
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LLBufferStream istr(channels, buffer.get());
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std::stringstream strstrm;
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strstrm << istr.rdbuf();
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const std::string result = strstrm.str();
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std::string translation;
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std::string detectedLanguage;
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if (!parseGoogleTranslate(result, translation, detectedLanguage))
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{
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handleFailure();
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return;
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}
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// Fix up the response
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stringReplaceAll( translation, "<","<");
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stringReplaceAll( translation, ">",">");
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stringReplaceAll( translation, ""","\"");
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stringReplaceAll( translation, "'","'");
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stringReplaceAll( translation, "&","&");
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stringReplaceAll( translation, "'","'");
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handleResponse(translation, detectedLanguage);
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}
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protected:
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const std::string m_toLang;
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const std::string m_fromLang;
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};
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static void translateMessage(LLHTTPClient::ResponderPtr &result, const std::string &fromLang, const std::string &toLang, const std::string &mesg);
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static float m_GoogleTimeout;
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static std::string getTranslateLanguage();
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private:
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static void getTranslateUrl(std::string &translateUrl, const std::string &fromLang, const std::string &toLang, const std::string &text);
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static void stringReplaceAll(std::string& context, const std::string& from, const std::string& to);
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static BOOL parseGoogleTranslate(const std::string result, std::string &translation, std::string &detectedLanguage);
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static AIHTTPHeaders m_Header;
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static const char* m_GoogleURL;
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static const char* m_GoogleLangSpec;
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static const char* m_AcceptHeader;
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static const char* m_AcceptType;
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static const char* m_AgentHeader;
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static const char* m_UserAgent;
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static const char* m_GoogleData;
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static const char* m_GoogleTranslation;
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static const char* m_GoogleLanguage;
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};
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#endif
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