diff options
Diffstat (limited to 'indra/newview/lltranslate.cpp')
| -rw-r--r-- | indra/newview/lltranslate.cpp | 366 |
1 files changed, 294 insertions, 72 deletions
diff --git a/indra/newview/lltranslate.cpp b/indra/newview/lltranslate.cpp index 3692f67a8d..7eb54271f4 100644 --- a/indra/newview/lltranslate.cpp +++ b/indra/newview/lltranslate.cpp @@ -31,50 +31,224 @@ #include <curl/curl.h> #include "llbufferstream.h" +#include "lltrans.h" #include "llui.h" #include "llversioninfo.h" #include "llviewercontrol.h" #include "reader.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 = 5; +// virtual +void LLGoogleTranslationHandler::getTranslateURL( + std::string &url, + const std::string &from_lang, + const std::string &to_lang, + const std::string &text) const +{ + url = std::string("https://www.googleapis.com/language/translate/v2?key=") + + getAPIKey() + "&q=" + LLURI::escape(text) + "&target=" + to_lang; + if (!from_lang.empty()) + { + url += "&source=" + from_lang; + } +} + +// virtual +void LLGoogleTranslationHandler::getKeyVerificationURL( + std::string& url, + const std::string& key) const +{ + url = std::string("https://www.googleapis.com/language/translate/v2/languages?key=") + + key + "&target=en"; +} + +// virtual +bool LLGoogleTranslationHandler::parseResponse( + int& status, + const std::string& body, + std::string& translation, + std::string& detected_lang, + std::string& err_msg) const +{ + Json::Value root; + Json::Reader reader; + + if (!reader.parse(body, root)) + { + err_msg = reader.getFormatedErrorMessages(); + return false; + } + + if (!root.isObject()) // empty response? should not happen + { + return false; + } + + if (status != STATUS_OK) + { + // Request failed. Extract error message from the response. + parseErrorResponse(root, status, err_msg); + return false; + } + + // Request succeeded, extract translation from the response. + return parseTranslation(root, translation, detected_lang); +} + +// static +void LLGoogleTranslationHandler::parseErrorResponse( + const Json::Value& root, + int& status, + std::string& err_msg) +{ + const Json::Value& error = root.get("error", 0); + if (!error.isObject() || !error.isMember("message") || !error.isMember("code")) + { + return; + } -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"; + err_msg = error["message"].asString(); + status = error["code"].asInt(); +} + +// static +bool LLGoogleTranslationHandler::parseTranslation( + const Json::Value& root, + std::string& translation, + std::string& detected_lang) +{ + // JsonCpp is prone to aborting the program on failed assertions, + // so be super-careful and verify the response format. + const Json::Value& data = root.get("data", 0); + if (!data.isObject() || !data.isMember("translations")) + { + return false; + } + + const Json::Value& translations = data["translations"]; + if (!translations.isArray() || translations.size() == 0) + { + return false; + } + + const Json::Value& first = translations[0U]; + if (!first.isObject() || !first.isMember("translatedText")) + { + return false; + } + + translation = first["translatedText"].asString(); + detected_lang = first.get("detectedSourceLanguage", "").asString(); + return true; +} -// 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 +std::string LLGoogleTranslationHandler::getAPIKey() +{ + return gSavedSettings.getString("GoogleTranslateAPIKey"); +} // virtual -void LLTranslate::TranslationReceiver::completedRaw( U32 status, - const std::string& reason, - const LLChannelDescriptors& channels, - const LLIOPipe::buffer_ptr_t& buffer) +void LLBingTranslationHandler::getTranslateURL( + std::string &url, + const std::string &from_lang, + const std::string &to_lang, + const std::string &text) const { - if (200 <= status && status < 300) + url = std::string("http://api.microsofttranslator.com/v2/Http.svc/Translate?appId=") + + getAPIKey() + "&text=" + LLURI::escape(text) + "&to=" + to_lang; + if (!from_lang.empty()) { - LLBufferStream istr(channels, buffer.get()); - std::stringstream strstrm; - strstrm << istr.rdbuf(); + url += "&from=" + from_lang; + } +} - const std::string result = strstrm.str(); - std::string translation; - std::string detected_language; +// virtual +void LLBingTranslationHandler::getKeyVerificationURL( + std::string& url, + const std::string& key) const +{ + url = std::string("http://api.microsofttranslator.com/v2/Http.svc/GetLanguagesForTranslate?appId=") + + key; +} - if (!parseGoogleTranslate(result, translation, detected_language)) +// virtual +bool LLBingTranslationHandler::parseResponse( + int& status, + const std::string& body, + std::string& translation, + std::string& detected_lang, + std::string& err_msg) const +{ + if (status != STATUS_OK) + { + static const std::string MSG_BEGIN_MARKER = "Message: "; + size_t begin = body.find(MSG_BEGIN_MARKER); + if (begin != std::string::npos) + { + begin += MSG_BEGIN_MARKER.size(); + } + else { - handleFailure(); - return; + begin = 0; + err_msg.clear(); } - + size_t end = body.find("</p>", begin); + err_msg = body.substr(begin, end-begin); + LLStringUtil::replaceString(err_msg, "
", ""); // strip CR + return false; + } + + // Sample response: <string xmlns="http://schemas.microsoft.com/2003/10/Serialization/">Hola</string> + size_t begin = body.find(">"); + if (begin == std::string::npos || begin >= (body.size() - 1)) + { + begin = 0; + } + else + { + ++begin; + } + + size_t end = body.find("</string>", begin); + + detected_lang = ""; // unsupported by this API + translation = body.substr(begin, end-begin); + LLStringUtil::replaceString(translation, "
", ""); // strip CR + return true; +} + +// static +std::string LLBingTranslationHandler::getAPIKey() +{ + return gSavedSettings.getString("BingTranslateAPIKey"); +} + +LLTranslate::TranslationReceiver::TranslationReceiver(const std::string& from_lang, const std::string& to_lang) +: mFromLang(from_lang) +, mToLang(to_lang) +, mHandler(LLTranslate::getPreferredHandler()) +{ +} + +// virtual +void LLTranslate::TranslationReceiver::completedRaw( + U32 http_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 body = strstrm.str(); + std::string translation, detected_lang, err_msg; + int status = http_status; + LL_DEBUGS("Translate") << "HTTP status: " << status << " " << reason << LL_ENDL; + LL_DEBUGS("Translate") << "Response body: " << body << LL_ENDL; + if (mHandler.parseResponse(status, body, translation, detected_lang, err_msg)) + { // Fix up the response LLStringUtil::replaceString(translation, "<", "<"); LLStringUtil::replaceString(translation, ">",">"); @@ -83,67 +257,66 @@ void LLTranslate::TranslationReceiver::completedRaw( U32 status, LLStringUtil::replaceString(translation, "&","&"); LLStringUtil::replaceString(translation, "'","'"); - handleResponse(translation, detected_language); + handleResponse(translation, detected_lang); } else { - LL_WARNS("Translate") << "HTTP request for Google Translate failed with status " << status << ", reason: " << reason << LL_ENDL; - handleFailure(); + if (err_msg.empty()) + { + err_msg = LLTrans::getString("TranslationResponseParseError"); + } + + llwarns << "Translation request failed: " << err_msg << llendl; + handleFailure(status, err_msg); } } -//static -void LLTranslate::translateMessage(LLHTTPClient::ResponderPtr &result, const std::string &from_lang, const std::string &to_lang, const std::string &mesg) +LLTranslate::KeyVerificationReceiver::KeyVerificationReceiver(EService service) +: mService(service) { - std::string url; - getTranslateUrl(url, from_lang, to_lang, mesg); - - std::string user_agent = llformat("%s %d.%d.%d (%d)", - LLVersionInfo::getChannel().c_str(), - LLVersionInfo::getMajor(), - LLVersionInfo::getMinor(), - LLVersionInfo::getPatch(), - LLVersionInfo::getBuild()); +} - if (!m_Header.size()) - { - m_Header.insert(m_AcceptHeader, LLSD(m_AcceptType)); - m_Header.insert(m_AgentHeader, LLSD(user_agent)); - } +LLTranslate::EService LLTranslate::KeyVerificationReceiver::getService() const +{ + return mService; +} - LLHTTPClient::get(url, result, m_Header, m_GoogleTimeout); +// virtual +void LLTranslate::KeyVerificationReceiver::completedRaw( + U32 http_status, + const std::string& reason, + const LLChannelDescriptors& channels, + const LLIOPipe::buffer_ptr_t& buffer) +{ + bool ok = (http_status == 200); + setVerificationStatus(ok); } //static -void LLTranslate::getTranslateUrl(std::string &translate_url, const std::string &from_lang, const std::string &to_lang, const std::string &mesg) +void LLTranslate::translateMessage( + TranslationReceiverPtr &receiver, + const std::string &from_lang, + const std::string &to_lang, + const std::string &mesg) { - char * curl_str = curl_escape(mesg.c_str(), mesg.size()); - std::string const escaped_mesg(curl_str); - curl_free(curl_str); + std::string url; + receiver->mHandler.getTranslateURL(url, from_lang, to_lang, mesg); - translate_url = m_GoogleURL - + escaped_mesg + m_GoogleLangSpec - + from_lang // 'from' language; empty string for auto - + "%7C" // | - + to_lang; // 'to' language + LL_DEBUGS("Translate") << "Sending translation request: " << url << LL_ENDL; + sendRequest(url, receiver); } -//static -bool LLTranslate::parseGoogleTranslate(const std::string& body, std::string &translation, std::string &detected_language) +// static +void LLTranslate::verifyKey( + KeyVerificationReceiverPtr& receiver, + const std::string& key) { - Json::Value root; - Json::Reader reader; - - bool success = reader.parse(body, root); - if (!success) - { - LL_WARNS("Translate") << "Non valid response from Google Translate API: '" << reader.getFormatedErrorMessages() << "'" << LL_ENDL; - return false; - } - - translation = root[m_GoogleData].get(m_GoogleTranslation, "").asString(); - detected_language = root[m_GoogleData].get(m_GoogleLanguage, "").asString(); - return true; + std::string url; + const LLTranslationAPIHandler& handler = getHandler(receiver->getService()); + handler.getKeyVerificationURL(url, key); + + LL_DEBUGS("Translate") << "Sending key verification request: " << url << LL_ENDL; + sendRequest(url, receiver); } //static @@ -158,3 +331,52 @@ std::string LLTranslate::getTranslateLanguage() return language; } +// static +const LLTranslationAPIHandler& LLTranslate::getPreferredHandler() +{ + EService service = SERVICE_BING; + + std::string service_str = gSavedSettings.getString("TranslationService"); + if (service_str == "google") + { + service = SERVICE_GOOGLE; + } + + return getHandler(service); +} + +// static +const LLTranslationAPIHandler& LLTranslate::getHandler(EService service) +{ + static LLGoogleTranslationHandler google; + static LLBingTranslationHandler bing; + + if (service == SERVICE_GOOGLE) + { + return google; + } + + return bing; +} + +// static +void LLTranslate::sendRequest(const std::string& url, LLHTTPClient::ResponderPtr responder) +{ + static const float REQUEST_TIMEOUT = 5; + static LLSD sHeader; + + if (!sHeader.size()) + { + std::string user_agent = llformat("%s %d.%d.%d (%d)", + LLVersionInfo::getChannel().c_str(), + LLVersionInfo::getMajor(), + LLVersionInfo::getMinor(), + LLVersionInfo::getPatch(), + LLVersionInfo::getBuild()); + + sHeader.insert("Accept", "text/plain"); + sHeader.insert("User-Agent", user_agent); + } + + LLHTTPClient::get(url, responder, sHeader, REQUEST_TIMEOUT); +} |