Textractor_test/extensions/network.cpp
Akash Mozumdar 4b0fc12794 dynamic port
2020-05-14 18:09:52 -06:00

97 lines
3.3 KiB
C++

#include "network.h"
HttpRequest::HttpRequest(
const wchar_t* agentName,
const wchar_t* serverName,
const wchar_t* action,
const wchar_t* objectName,
std::string body,
const wchar_t* headers,
const wchar_t* referrer,
DWORD requestFlags,
const wchar_t* httpVersion,
const wchar_t** acceptTypes
)
{
static std::atomic<HINTERNET> internet = NULL;
if (!internet) internet = WinHttpOpen(agentName, WINHTTP_ACCESS_TYPE_DEFAULT_PROXY, NULL, NULL, 0);
if (internet)
if (InternetHandle connection = WinHttpConnect(internet, serverName, INTERNET_DEFAULT_PORT, 0))
if (InternetHandle request = WinHttpOpenRequest(connection, action, objectName, httpVersion, referrer, acceptTypes, requestFlags))
if (WinHttpSendRequest(request, headers, -1UL, body.empty() ? NULL : body.data(), body.size(), body.size(), NULL))
{
WinHttpReceiveResponse(request, NULL);
//DWORD size = 0;
//WinHttpQueryHeaders(request, WINHTTP_QUERY_RAW_HEADERS_CRLF, WINHTTP_HEADER_NAME_BY_INDEX, NULL, &size, WINHTTP_NO_HEADER_INDEX);
//this->headers.resize(size);
//WinHttpQueryHeaders(request, WINHTTP_QUERY_RAW_HEADERS_CRLF, WINHTTP_HEADER_NAME_BY_INDEX, this->headers.data(), &size, WINHTTP_NO_HEADER_INDEX);
std::string data;
DWORD availableSize, downloadedSize;
do
{
availableSize = 0;
WinHttpQueryDataAvailable(request, &availableSize);
if (!availableSize) break;
std::vector<char> buffer(availableSize);
WinHttpReadData(request, buffer.data(), availableSize, &downloadedSize);
data.append(buffer.data(), downloadedSize);
} while (availableSize > 0);
response = StringToWideString(data);
this->connection = std::move(connection);
this->request = std::move(request);
}
else errorCode = GetLastError();
else errorCode = GetLastError();
else errorCode = GetLastError();
else errorCode = GetLastError();
}
std::wstring Escape(const std::wstring& text)
{
std::wstring escaped;
for (unsigned char ch : WideStringToString(text)) escaped += FormatString(L"%%%02X", (int)ch);
return escaped;
}
namespace JSON
{
void Unescape(std::wstring& text)
{
for (int i = 0; i < text.size(); ++i)
{
if (text[i] == L'\\')
{
text[i] = 0;
if (text[i + 1] == L'r') text[i + 1] = 0; // for some reason \r gets displayed as a newline
if (text[i + 1] == L'n') text[i + 1] = L'\n';
if (text[i + 1] == L't') text[i + 1] = L'\t';
if (text[i + 1] == L'\\') ++i;
}
}
text.erase(std::remove(text.begin(), text.end(), 0), text.end());
}
std::string Escape(const std::wstring& text)
{
std::string escaped = WideStringToString(text);
int oldSize = escaped.size();
escaped.resize(escaped.size() + std::count_if(escaped.begin(), escaped.end(), [](char ch) { return ch == '\n' || ch == '\r' || ch == '\t' || ch == '\\' || ch == '"'; }));
auto out = escaped.rbegin();
for (int i = oldSize - 1; i >= 0; --i)
{
if (escaped[i] == '\n') *out++ = 'n';
else if (escaped[i] == '\t') *out++ = 't';
else if (escaped[i] == '\r') *out++ = 'r';
else if (escaped[i] == '\\' || escaped[i] == '"') *out++ = escaped[i];
else
{
*out++ = escaped[i];
continue;
}
*out++ = '\\';
}
escaped.erase(std::remove_if(escaped.begin(), escaped.end(), [](unsigned char ch) { return ch < 0x20; }), escaped.end());
return escaped;
}
}