diff options
Diffstat (limited to 'linguistic/source/translate.cxx')
-rw-r--r-- | linguistic/source/translate.cxx | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/linguistic/source/translate.cxx b/linguistic/source/translate.cxx new file mode 100644 index 0000000000..8c34107770 --- /dev/null +++ b/linguistic/source/translate.cxx @@ -0,0 +1,85 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + */ + +#include <linguistic/translate.hxx> +#include <sal/log.hxx> +#include <curl/curl.h> +#include <rtl/string.h> +#include <boost/property_tree/ptree.hpp> +#include <boost/property_tree/json_parser.hpp> +#include <systools/curlinit.hxx> +#include <vcl/htmltransferable.hxx> +#include <tools/long.hxx> + +namespace linguistic +{ +OString Translate(const OString& rTargetLang, const OString& rAPIUrl, const OString& rAuthKey, + const OString& rData) +{ + constexpr tools::Long CURL_TIMEOUT = 10L; + + std::unique_ptr<CURL, std::function<void(CURL*)>> curl(curl_easy_init(), + [](CURL* p) { curl_easy_cleanup(p); }); + + ::InitCurl_easy(curl.get()); + + (void)curl_easy_setopt(curl.get(), CURLOPT_URL, rAPIUrl.getStr()); + (void)curl_easy_setopt(curl.get(), CURLOPT_FAILONERROR, 1L); + (void)curl_easy_setopt(curl.get(), CURLOPT_TIMEOUT, CURL_TIMEOUT); + + std::string response_body; + (void)curl_easy_setopt(curl.get(), CURLOPT_WRITEFUNCTION, + +[](void* buffer, size_t size, size_t nmemb, void* userp) -> size_t { + if (!userp) + return 0; + std::string* response = static_cast<std::string*>(userp); + size_t real_size = size * nmemb; + response->append(static_cast<char*>(buffer), real_size); + return real_size; + }); + (void)curl_easy_setopt(curl.get(), CURLOPT_WRITEDATA, static_cast<void*>(&response_body)); + OString aLang(curl_easy_escape(curl.get(), rTargetLang.getStr(), rTargetLang.getLength())); + OString aAuthKey(curl_easy_escape(curl.get(), rAuthKey.getStr(), rAuthKey.getLength())); + OString aData(curl_easy_escape(curl.get(), rData.getStr(), rData.getLength())); + OString aPostData("auth_key=" + aAuthKey + "&target_lang=" + aLang + "&text=" + aData); + + (void)curl_easy_setopt(curl.get(), CURLOPT_POSTFIELDS, aPostData.getStr()); + CURLcode cc = curl_easy_perform(curl.get()); + if (cc != CURLE_OK) + { + SAL_WARN("linguistic", + "Translate: CURL perform returned with error: " << static_cast<sal_Int32>(cc)); + return {}; + } + tools::Long nStatusCode; + curl_easy_getinfo(curl.get(), CURLINFO_RESPONSE_CODE, &nStatusCode); + if (nStatusCode != 200) + { + SAL_WARN("linguistic", + "Translate: CURL request returned with status code: " << nStatusCode); + return {}; + } + // parse the response + boost::property_tree::ptree root; + std::stringstream aStream(response_body.data()); + boost::property_tree::read_json(aStream, root); + boost::property_tree::ptree& translations = root.get_child("translations"); + size_t size = translations.size(); + if (size <= 0) + { + SAL_WARN("linguistic", "Translate: API did not return any translations"); + } + // take the first one + const boost::property_tree::ptree& translation = translations.begin()->second; + const std::string text = translation.get<std::string>("text"); + return OString(text); +} +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */ |