/// <summary>
/// Получить содержимое
/// </summary>
/// <param name="hRequest">
/// Указатель на HTTPS-запрос
/// </param>
/// <param name="result">
/// Результат HTTPS-запроса
/// </param>
private static void GetContent(IntPtr hRequest, HttpResult result)
{
using (var stream = new MemoryStream())
{
const uint chunkSize = 1024U;
using (var buffer = InteropUtil.Alloc(chunkSize))
{
while (true)
{
var bytesRead = 0U;
if (!WinInet.InternetReadFile(hRequest, buffer.Address, chunkSize, ref bytesRead))
{
ThrowWinInetLastException("InternetReadFile");
}
for (var i = 0; i < bytesRead; i++)
{
stream.WriteByte(Marshal.ReadByte(buffer.Address + i));
}
if (bytesRead <= 0)
{
break;
}
}
}
result.Content = stream.ToArray();
}
}
/// <summary>
/// Получить тип содержимого
/// </summary>
/// <param name="hRequest">
/// Указатель на HTTPS-запрос
/// </param>
/// <param name="result">
/// Результат HTTPS-запроса
/// </param>
private static void GetContentType(IntPtr hRequest, HttpResult result)
{
var statusSize = 256U;
using (var buffer = InteropUtil.Alloc(statusSize))
{
if (!WinInet.HttpQueryInfoW(
hRequest,
WinInet.HTTP_QUERY_CONTENT_TYPE,
buffer.Address,
ref statusSize,
IntPtr.Zero))
{
ThrowWinInetLastException("HttpQueryInfoW(HTTP_QUERY_CONTENT_TYPE)");
}
result.ContentType = Marshal.PtrToStringUni(buffer.Address);
}
}
/// <summary>
/// Получить код статуса HTTP
/// </summary>
/// <param name="hRequest">
/// Указатель на HTTPS-запрос
/// </param>
/// <param name="result">
/// Результат HTTPS-запроса
/// </param>
private static void GetStatusCode(IntPtr hRequest, HttpResult result)
{
uint statusSize = sizeof(uint);
using (var buffer = InteropUtil.Alloc(statusSize))
{
if (!WinInet.HttpQueryInfoW(
hRequest,
WinInet.HTTP_QUERY_FLAG_NUMBER | WinInet.HTTP_QUERY_STATUS_CODE,
buffer.Address,
ref statusSize,
IntPtr.Zero))
{
ThrowWinInetLastException("HttpQueryInfoW(HTTP_QUERY_FLAG_NUMBER|HTTP_QUERY_STATUS_CODE)");
}
result.Code = (HttpStatusCode)Marshal.ReadInt32(buffer.Address);
}
}