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brainlet-client/http.h

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// Copyright (c) 2021 hiimgoodpack
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
// of the Software, and to permit persons to whom the Software is furnished to do
// so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
#ifndef HTTP_H
#define HTTP_H
#include <string>
#include <curl/curl.h>
#include <stdexcept>
#include <cstdint>
namespace Http {
class Error : public std::runtime_error {
public:
using runtime_error::runtime_error;
};
class Request {
private:
CURL* handle;
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std::string url;
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std::string postFields;
static std::size_t write(void* buffer, std::size_t blocks, std::size_t blockSize, std::string* result);
public:
std::string buffer;
long int status;
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Request(const std::string& url);
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void setPostFields(std::string fields);
void perform();
~Request();
};
}
#endif
#if defined(HTTP_IMPLEMENTATION) && !defined(HTTP_IMPLEMENTED)
#define HTTP_IMPLEMENTED
namespace Http {
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Request::Request(const std::string& newUrl) : url(newUrl) {
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handle = curl_easy_init();
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curl_easy_setopt(handle, CURLOPT_URL, url.c_str());
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curl_easy_getinfo(handle, CURLINFO_RESPONSE_CODE, &status);
curl_easy_setopt(handle, CURLOPT_WRITEFUNCTION, write);
curl_easy_setopt(handle, CURLOPT_WRITEDATA, &buffer);
}
std::size_t Request::write(void* buffer, std::size_t blocks, std::size_t blockSize, std::string* result) {
const std::size_t size = blocks * blockSize;
result->append((char*)buffer, size);
return size;
}
void Request::setPostFields(std::string newFields) {
postFields = newFields;
curl_easy_setopt(handle, CURLOPT_POSTFIELDS, postFields.c_str());
curl_easy_setopt(handle, CURLOPT_POSTFIELDSIZE, postFields.length()+1);
}
void Request::perform() {
CURLcode code = curl_easy_perform(handle);
if (code != CURLE_OK)
throw Error(curl_easy_strerror(code));
}
Request::~Request() {
curl_easy_cleanup(handle);
}
}
#endif