public async Task OnRequest(HttpContext context)
{
var request = context.Request;
var requestPath = request.Path;
if (string.Equals(requestPath, "/favicon.ico", StringComparison.OrdinalIgnoreCase))
{
context.Response.StatusCode = 200;
await context.Response.Body.WriteAsync(Resources.Favicon);
return;
}
var decodedPath = HttpUtility.UrlDecode(requestPath);
var physicalPath = _webHostEnvironment.ContentRootFileProvider.GetFileInfo(decodedPath).PhysicalPath;
if (Directory.Exists(physicalPath) && request.Method == "GET" || request.Method == "HEAD")
{
var url = $"{request.Scheme}://{request.Host}{requestPath}";
var uri = new Uri(url);
var isRootPath = string.Equals(requestPath, "/") || true;
var mainPayload = _tinfoilIndexBuilder.Build(physicalPath, uri, _appSettings.IndexType, isRootPath ? _appSettings.MessageOfTheDay : null);
var json = JsonSerializer.Serialize(mainPayload, new JsonSerializerOptions {
WriteIndented = true
});
context.Response.StatusCode = 200;
context.Response.ContentType = "application/json";
await context.Response.WriteAsync(json, Encoding.UTF8);
}
else if (_fileFilter.IsFileAllowed(physicalPath) && File.Exists(physicalPath) && request.Method == "GET" || request.Method == "HEAD")
{
var rangeHeader = new RangeHeader
{
RawValue = request.Headers["range"]
};
var ranges = rangeHeader.Ranges;
var range = ranges.Count == 1 ? ranges[0] : null;
await context.Response.WriteFile(physicalPath, range : range);
}
else
{
context.Response.StatusCode = 404;
await context.Response.WriteAsync("<!DOCTYPE html><http><head><title>Oops!</title></head><body style='text-align:center'>404<br>Not found...</body></html>");
}
}
private void AppendFlatten(Dir dir, TinfoilIndex tinfoilIndex)
{
var urlCombiner = _urlCombinerFactory.Create(dir.CorrespondingUrl);
var localDirPath = dir.Path;
if (!Directory.Exists(localDirPath))
{
return;
}
var filePaths = Directory.GetFiles(localDirPath, "*.*", SearchOption.AllDirectories);
foreach (var filePath in filePaths)
{
if (!_fileFilter.IsFileAllowed(filePath))
{
continue;
}
var relFilePath = filePath[localDirPath.Length..]; // SubString from dirPath.Length to the end
public TinfoilIndex Build(string directory, Uri correspondingUri, TinfoilIndexType indexType, string?messageOfTheDay)
{
var rooDirUri = correspondingUri.OriginalString.EndsWith('/') ? correspondingUri : new Uri(correspondingUri.OriginalString + "/");
var tinfoilIndex = new TinfoilIndex
{
Success = messageOfTheDay,
};
switch (indexType)
{
case TinfoilIndexType.Flatten:
var filePaths = Directory.GetFiles(directory, "*.*", SearchOption.AllDirectories);
foreach (var filePath in filePaths)
{
if (!_fileFilter.IsFileAllowed(filePath))
{
continue;
}
var relFilePath = filePath[directory.Length..];
