public Static(IStaticFileServer fileServer, TcpSettings tcpSettings)
{
Validation.RequireValidTcpSettings(tcpSettings);
_fileServer = fileServer
?? throw new ArgumentNullException(nameof(fileServer));
_tcpSettings = tcpSettings;
}
public static async Task WriteAsync(
this IStaticFileServer inst,
IHttpRequest request,
StaticRangeRequest rangeRequest,
IHttpResponse response,
string pathToContentFile,
int writeBufferSize)
{
Validation.RequireValidBufferSize(writeBufferSize);
// Set headers
response.Header[HttpKeys.ContentType] =
inst.GetContentTypeHeader(pathToContentFile);
// Open the file
using (var fs = inst.OpenRead(pathToContentFile))
{
// The requested range may contains relative values,
// Convert them to absolute values here, as we knew the
// content length
rangeRequest = rangeRequest.ToAbsolute(fs.Length);
// Set headers (cont)
var contentLength = rangeRequest.To - rangeRequest.From + 1L;
response.Header[HttpKeys.ContentLength]
= contentLength.Str();
response.Header[HttpKeys.ContentRange]
= rangeRequest.GenerateRangeHeaderValue(fs.Length);
// Write body (for GET method only)
if (request.Header.Method == HttpRequestMethod.GET)
{
fs.Position = rangeRequest.From;
await fs.CopyToAsync(
response.Body,
count : contentLength,
bufferSize : writeBufferSize);
}
}
}
public static async Task WriteAsync(
this IStaticFileServer staticFileServer,
IHttpRequest request,
StaticRangeRequest[] ranges,
IHttpResponse response,
string pathToContentFile,
int writeBufferSize)
{
var contentType = staticFileServer.GetContentTypeHeader(pathToContentFile);
using (var fs = staticFileServer.OpenRead(pathToContentFile))
{
for (var i = 0; i < ranges.Length; i++)
{
ranges[i] = ranges[i].ToAbsolute(fs.Length);
}
// Write header
var chunks = GenerateChunks(ranges, fs.Length, contentType);
response.Header[HttpKeys.ContentType]
= $"multipart/byteranges; boundary={MultiRangeBoundaryString}";
response.Header[HttpKeys.ContentLength]
= CalculateContentLength(chunks).Str();
// Write body and footer (GET method only)
if (request.Header.Method == HttpRequestMethod.GET)
{
for (var i = 0; i < chunks.Count; i++)
{
await WriteChunkBody(response, writeBufferSize, fs, chunks[i]);
}
await response.Body.WriteAsync(
MultiRangeBoundaryFooterString,
writeBufferSize
);
}
}
}
