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#pragma once
#include "http_request.hpp"
#include <boost/algorithm/string/classification.hpp>
#include <boost/algorithm/string/split.hpp>
namespace http_helpers
{
inline std::vector<std::string> parseAccept(std::string_view header)
{
std::vector<std::string> encodings;
// chrome currently sends 6 accepts headers, firefox sends 4.
encodings.reserve(6);
boost::split(encodings, header, boost::is_any_of(", "),
boost::token_compress_on);
return encodings;
}
inline bool requestPrefersHtml(std::string_view header)
{
for (const std::string& encoding : parseAccept(header))
{
if (encoding == "text/html")
{
return true;
}
if (encoding == "application/json")
{
return false;
}
}
return false;
}
inline bool isOctetAccepted(std::string_view header)
{
for (const std::string& encoding : parseAccept(header))
{
if (encoding == "*/*" || encoding == "application/octet-stream")
{
return true;
}
}
return false;
}
inline std::string urlEncode(const std::string_view value)
{
std::ostringstream escaped;
escaped.fill('0');
escaped << std::hex;
for (const char c : value)
{
// Keep alphanumeric and other accepted characters intact
if ((isalnum(c) != 0) || c == '-' || c == '_' || c == '.' || c == '~')
{
escaped << c;
continue;
}
// Any other characters are percent-encoded
escaped << std::uppercase;
escaped << '%' << std::setw(2)
<< static_cast<int>(static_cast<unsigned char>(c));
escaped << std::nouppercase;
}
return escaped.str();
}
} // namespace http_helpers
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