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#include "../include/curl.hpp"
#include "../include/env.hpp"
#include <curl/curl.h>
#include <cstring>
using namespace std;
#if OS_FAMILY == OS_FAMILY_WINDOWS
#pragma comment(lib, "Ws2_32.lib")
#pragma comment(lib, "Wldap32.lib")
#pragma comment(lib, "Crypt32.lib")
#endif
#ifdef DEBUG
#define CURL_DEBUG
#endif
#undef CURL_DEBUG
class CurlSession
{
public:
CurlSession()
{
curl_global_init(CURL_GLOBAL_ALL);
}
~CurlSession()
{
curl_global_cleanup();
}
};
static CurlSession curlSession;
namespace sibs
{
// TODO: Instead of writing to file, reading from file and extracting it;
// we can extract to file directly by putting libarchive code here
size_t writeToFile(char *data, size_t size, size_t nmemb, FILE *stream)
{
if(!stream) return 0;
return fwrite(data, size, nmemb, stream);
}
size_t writeToString(char *data, size_t size, size_t nmemb, string *writerData)
{
if(!writerData) return 0;
writerData->append(data, size * nmemb);
return size * nmemb;
}
Result<bool> curl::downloadFile(const char *url, const _tinydir_char_t *filepath)
{
CURL *curl_handle = curl_easy_init();
curl_easy_setopt(curl_handle, CURLOPT_URL, url);
#ifdef CURL_DEBUG
long verbose = 1L;
long noProgressMeter = 0L;
#else
long verbose = 0L;
long noProgressMeter = 1L;
#endif
curl_easy_setopt(curl_handle, CURLOPT_VERBOSE, verbose);
curl_easy_setopt(curl_handle, CURLOPT_NOPROGRESS, noProgressMeter);
curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, writeToFile);
curl_easy_setopt(curl_handle, CURLOPT_FOLLOWLOCATION, true);
curl_easy_setopt(curl_handle, CURLOPT_USERAGENT, "SIBS");
curl_easy_setopt(curl_handle, CURLOPT_SSL_VERIFYPEER, FALSE);
#if OS_FAMILY == OS_FAMILY_POSIX
FILE *file = fopen(filepath, "wb");
#else
FILE *file = _wfopen(filepath, L"wb");
#endif
if(!file)
{
int error = errno;
curl_easy_cleanup(curl_handle);
string errMsg = "Failed to open file for writing: ";
errMsg += toUtf8(filepath);
if(error != 0)
{
errMsg += "; Reason: ";
errMsg += strerror(error);
return Result<bool>::Err(errMsg);
}
else
{
return Result<bool>::Err(errMsg);
}
}
curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, file);
printf("Downloading from url: %s\n", url);
CURLcode curlResponse = curl_easy_perform(curl_handle);
long httpCode = 0;
curl_easy_getinfo(curl_handle, CURLINFO_RESPONSE_CODE, &httpCode);
curl_easy_cleanup(curl_handle);
fclose(file);
if(httpCode == 200 && curlResponse == CURLE_OK)
return Result<bool>::Ok(true);
if(httpCode != 200)
{
string errMsg = "Failed to download file from url: ";
errMsg += url;
errMsg += "\nReason: Expected http response code 200 (OK), got: ";
errMsg += to_string(httpCode);
errMsg += " (";
errMsg += curl_easy_strerror(curlResponse);
errMsg += ")";
return Result<bool>::Err(errMsg);
}
else
{
string errMsg = "Failed to download file from url: ";
errMsg += url;
errMsg += "\nReason: ";
errMsg += curl_easy_strerror(curlResponse);
return Result<bool>::Err(errMsg);
}
}
HttpResult curl::get(const char *url)
{
HttpResult result;
CURL *curl_handle = curl_easy_init();
curl_easy_setopt(curl_handle, CURLOPT_URL, url);
#ifdef CURL_DEBUG
long verbose = 1L;
long noProgressMeter = 0L;
#else
long verbose = 0L;
long noProgressMeter = 1L;
#endif
curl_easy_setopt(curl_handle, CURLOPT_VERBOSE, verbose);
curl_easy_setopt(curl_handle, CURLOPT_NOPROGRESS, noProgressMeter);
curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, writeToString);
curl_easy_setopt(curl_handle, CURLOPT_FOLLOWLOCATION, true);
curl_easy_setopt(curl_handle, CURLOPT_USERAGENT, "SIBS");
curl_easy_setopt(curl_handle, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, &result.str);
printf("Downloading from url: %s\n", url);
CURLcode curlResponse = curl_easy_perform(curl_handle);
long httpCode = 0;
curl_easy_getinfo(curl_handle, CURLINFO_RESPONSE_CODE, &httpCode);
curl_easy_cleanup(curl_handle);
result.httpCode = httpCode;
if(httpCode == 200 && curlResponse == CURLE_OK)
{
result.success = true;
return result;
}
result.success = false;
if(httpCode != 200)
{
string errMsg = "Failed to download file from url: ";
errMsg += url;
errMsg += "\nReason: Expected http response code 200 (OK), got: ";
errMsg += to_string(httpCode);
errMsg += " (";
errMsg += curl_easy_strerror(curlResponse);
errMsg += ")";
return result;
}
else
{
string errMsg = "Failed to download file from url: ";
errMsg += url;
errMsg += "\nReason: ";
errMsg += curl_easy_strerror(curlResponse);
return result;
}
}
}
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