Imported existing code

indra/newview/lltranslate.cpp

@@ -0,0 +1,135 @@
+/**
+* @file lltranslate.cpp
+* @brief Functions for translating text via Google Translate.
+*
+* $LicenseInfo:firstyear=2009&license=viewergpl$
+*
+* 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.
+* $/LicenseInfo$
+*/
+
+#include "llviewerprecompiledheaders.h"
+
+#include "llbufferstream.h"
+#include "lltranslate.h"
+#include "llui.h"
+#include "llversionviewer.h"
+
+// These two are concatenated with the language specifiers to form a complete Google Translate URL
+const char* LLTranslate::m_GoogleURL = "http://ajax.googleapis.com/ajax/services/language/translate?v=1.0&q=";
+const char* LLTranslate::m_GoogleLangSpec = "&langpair=";
+float LLTranslate::m_GoogleTimeout = 10;
+
+LLSD LLTranslate::m_Header;
+// These constants are for the GET header.
+const char* LLTranslate::m_AcceptHeader = "Accept";
+const char* LLTranslate::m_AcceptType = "text/plain";
+const char* LLTranslate::m_AgentHeader = "User-Agent";
+
+// These constants are in the JSON returned from Google
+const char* LLTranslate::m_GoogleData = "responseData";
+const char* LLTranslate::m_GoogleTranslation = "translatedText";
+const char* LLTranslate::m_GoogleLanguage = "detectedSourceLanguage";
+
+//static
+void LLTranslate::translateMessage(LLHTTPClient::ResponderPtr &result, const std::string &fromLang, const std::string &toLang, const std::string &mesg)
+{
+	std::string url;
+	getTranslateUrl(url, fromLang, toLang, mesg);
+
+    std::string user_agent = llformat("%s %d.%d.%d (%d)",
+            LL_CHANNEL,
+            LL_VERSION_MAJOR,
+            LL_VERSION_MINOR,
+            LL_VERSION_PATCH,
+            LL_VERSION_BUILD );
+
+	if (!m_Header.size())
+	{
+		m_Header.insert(m_AcceptHeader, LLSD(m_AcceptType));
+		m_Header.insert(m_AgentHeader, LLSD(user_agent));
+	}
+
+	LLHTTPClient::get(url, result, m_Header, m_GoogleTimeout);
+}
+
+//static
+void LLTranslate::getTranslateUrl(std::string &translateUrl, const std::string &fromLang, const std::string &toLang, const std::string &mesg)
+{
+	std::string escaped_mesg = curl_escape(mesg.c_str(), mesg.size());
+
+	translateUrl = m_GoogleURL
+		+ escaped_mesg + m_GoogleLangSpec
+		+ fromLang // 'from' language; empty string for auto
+		+ "%7C" // |
+		+ toLang; // 'to' language
+}
+
+//static
+void LLTranslate::stringReplaceAll(std::string& context, const std::string& from, const std::string& to)
+{
+	size_t lookHere = 0;
+	size_t foundHere;
+
+	while((foundHere = context.find(from, lookHere))
+		!= std::string::npos) {
+			context.replace(foundHere, from.size(), to);
+			lookHere = foundHere + to.size();
+	}
+}
+
+//static
+BOOL LLTranslate::parseGoogleTranslate(const std::string result, std::string &translation, std::string &detectedLanguage)
+{
+	Json::Value root;
+	Json::Reader reader;
+	BOOL parsingSuccessful = reader.parse(result, root );
+	if ( !parsingSuccessful )
+	{
+		LL_WARNS("JSON") << reader.getFormatedErrorMessages() << LL_ENDL;
+		return FALSE;
+	}
+
+	translation = root[m_GoogleData].get(m_GoogleTranslation, "").asString();
+	detectedLanguage = root[m_GoogleData].get(m_GoogleLanguage, "").asString();
+	return TRUE;
+}
+
+//static
+std::string LLTranslate::getTranslateLanguage()
+{
+	std::string language = "en";
+	if (LLUI::sConfigGroup)
+	{
+		language = LLUI::sConfigGroup->getString("TranslateLanguage");
+		if (language.empty() || language == "default")
+		{
+		  language = LLUI::getLanguage();
+		}
+	}
+	language = language.substr(0,2);
+	return language;
+}
+