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69 lines
2.0 KiB
69 lines
2.0 KiB
/*
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* Copyright (c) 2023 by Thomas A. Early N7TAE
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "CurlGet.h"
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CCurlGet::CCurlGet()
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{
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curl_global_init(CURL_GLOBAL_ALL);
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}
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CCurlGet::~CCurlGet()
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{
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curl_global_cleanup();
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}
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// callback function writes data to a std::ostream
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size_t CCurlGet::data_write(void* buf, size_t size, size_t nmemb, void* userp)
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{
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if(userp)
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{
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std::ostream& os = *static_cast<std::ostream*>(userp);
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std::streamsize len = size * nmemb;
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if(os.write(static_cast<char*>(buf), len))
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return len;
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}
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return 0;
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}
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CURLcode CCurlGet::GetURL(const std::string &url, std::stringstream &ss, long timeout)
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{
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CURLcode code(CURLE_FAILED_INIT);
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CURL* curl = curl_easy_init();
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if(curl)
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{
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if(CURLE_OK == (code = curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, &data_write))
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&& CURLE_OK == (code = curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 1L))
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&& CURLE_OK == (code = curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L))
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&& CURLE_OK == (code = curl_easy_setopt(curl, CURLOPT_FILE, &ss))
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&& CURLE_OK == (code = curl_easy_setopt(curl, CURLOPT_TIMEOUT, timeout))
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&& CURLE_OK == (code = curl_easy_setopt(curl, CURLOPT_URL, url.c_str())))
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{
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code = curl_easy_perform(curl);
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}
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curl_easy_cleanup(curl);
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}
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if (code != CURLE_OK)
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{
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std::cout << "WARNING: was not able retrieve data at '" << url << "'\nCurl returned: " << code << std::endl;
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}
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return code;
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}
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