public static void _Tests(cTrace.cContext pParentContext)
{
var lContext = pParentContext.NewMethod(nameof(cQuotedPrintableDecoder), nameof(_Tests));
if (LTest("testNow's the time = \r\n", "for all folk to come=\t \t \r\n", " to the aid of their country. \t\r\n") != "Now's the time for all folk to come to the aid of their country.\r\n")
{
throw new cTestsException($"{nameof(cQuotedPrintableDecoder)}.1");
}
string LTest(params string[] pLines)
{
var lMC = new cMethodControl(-1, System.Threading.CancellationToken.None);
var lWriteSizer = new cBatchSizer(new cBatchSizerConfiguration(1, 10, 1000, 1));
using (var lStream = new MemoryStream())
{
cDecoder lDecoder = new cQuotedPrintableDecoder(lStream);
int lOffset = 4;
foreach (var lLine in pLines)
{
lDecoder.WriteAsync(lMC, new cBytes(lLine), lOffset, lWriteSizer, lContext).Wait();
lOffset = 0;
}
lDecoder.FlushAsync(lMC, lWriteSizer, lContext).Wait();
return(new string(System.Text.Encoding.UTF8.GetChars(lStream.GetBuffer(), 0, (int)lStream.Length)));
}
}
}
private async Task ZFetchBodyAsync(cMethodControl pMC, iMailboxHandle pMailboxHandle, cUID pUID, iMessageHandle pMessageHandle, cSection pSection, eDecodingRequired pDecoding, Stream pStream, cProgress pProgress, cBatchSizer pWriteSizer, cTrace.cContext pParentContext)
{
var lContext = pParentContext.NewMethod(nameof(cSession), nameof(ZFetchBodyAsync), pMC, pMailboxHandle, pUID, pMessageHandle, pSection, pDecoding);
if (pSection == null)
{
throw new ArgumentNullException(nameof(pSection));
}
if (pStream == null)
{
throw new ArgumentNullException(nameof(pStream));
}
if (pProgress == null)
{
throw new ArgumentNullException(nameof(pProgress));
}
if (pWriteSizer == null)
{
throw new ArgumentNullException(nameof(pWriteSizer));
}
if (!pStream.CanWrite)
{
throw new ArgumentOutOfRangeException(nameof(pStream));
}
// work out if binary can/should be used or not
bool lBinary = _Capabilities.Binary && pSection.TextPart == eSectionTextPart.all && pDecoding != eDecodingRequired.none;
cDecoder lDecoder;
if (lBinary || pDecoding == eDecodingRequired.none)
{
lDecoder = new cIdentityDecoder(pStream);
}
else if (pDecoding == eDecodingRequired.base64)
{
lDecoder = new cBase64Decoder(pStream);
}
else if (pDecoding == eDecodingRequired.quotedprintable)
{
lDecoder = new cQuotedPrintableDecoder(pStream);
}
else
{
throw new cContentTransferDecodingException("required decoding not supported", lContext);
}
uint lOrigin = 0;
Stopwatch lStopwatch = new Stopwatch();
while (true)
{
int lLength = mFetchBodyReadSizer.Current;
lStopwatch.Restart();
cBody lBody;
if (pUID == null)
{
lBody = await ZFetchBodyAsync(pMC, pMessageHandle, lBinary, pSection, lOrigin, (uint)lLength, lContext).ConfigureAwait(false);
}
else
{
lBody = await ZUIDFetchBodyAsync(pMC, pMailboxHandle, pUID, lBinary, pSection, lOrigin, (uint)lLength, lContext).ConfigureAwait(false);
}
lStopwatch.Stop();
// store the time taken so the next fetch is a better size
mFetchBodyReadSizer.AddSample(lBody.Bytes.Count, lStopwatch.ElapsedMilliseconds);
uint lBodyOrigin = lBody.Origin ?? 0;
// the body that we get may start before the place that we asked for
int lOffset = (int)(lOrigin - lBodyOrigin);
// write the bytes
await lDecoder.WriteAsync(pMC, lBody.Bytes, lOffset, pWriteSizer, lContext).ConfigureAwait(false);
// update progress
pProgress.Increment(lBody.Bytes.Count - lOffset, lContext);
// if the body we got was the whole body, we are done
if (lBody.Origin == null)
{
break;
}
// if we got less bytes than asked for then we will assume that we are at the end
if (lBody.Bytes.Count - lOffset < lLength)
{
break;
}
// set the start point for the next fetch
lOrigin = lBodyOrigin + (uint)lBody.Bytes.Count;
}
await lDecoder.FlushAsync(pMC, pWriteSizer, lContext).ConfigureAwait(false);
}