public async Task ListDirectoryAsync(
MappedResourceInfo info,
string absoluteUrlPath,
IEnumerable <MappedResourceInfo> entries,
Stream stream,
CancellationToken cancellationToken)
{
const int MaxEntryLength = 50;
const int SizeIndent = -20; // Negative for right alignment
SelfCheck.Assert(info.IsDirectory, $"{nameof(HtmlDirectoryLister)}.{nameof(ListDirectoryAsync)} invoked with a file, not a directory.");
var encodedPath = WebUtility.HtmlEncode(absoluteUrlPath);
using (var text = new StreamWriter(stream, Encoding.UTF8))
{
text.Write("<html><head><title>Index of ");
text.Write(encodedPath);
text.Write("</title></head><body><h1>Index of ");
text.Write(encodedPath);
text.Write("</h1><hr/><pre>");
if (encodedPath.Length > 1)
{
text.Write("<a href='../'>../</a>\n");
}
entries = entries.ToArray();
foreach (var directory in entries.Where(m => m.IsDirectory).OrderBy(e => e.Name))
{
text.Write($"<a href=\"{Uri.EscapeDataString(directory.Name)}{Path.DirectorySeparatorChar}\">{WebUtility.HtmlEncode(directory.Name)}</a>");
text.Write(new string(' ', Math.Max(1, MaxEntryLength - directory.Name.Length + 1)));
text.Write(HttpDate.Format(directory.LastModifiedUtc));
text.Write('\n');
await Task.Yield();
}
foreach (var file in entries.Where(m => m.IsFile).OrderBy(e => e.Name))
{
text.Write($"<a href=\"{Uri.EscapeDataString(file.Name)}{Path.DirectorySeparatorChar}\">{WebUtility.HtmlEncode(file.Name)}</a>");
text.Write(new string(' ', Math.Max(1, MaxEntryLength - file.Name.Length + 1)));
text.Write(HttpDate.Format(file.LastModifiedUtc));
text.Write($" {file.Length.ToString("#,###", CultureInfo.InvariantCulture),SizeIndent}\n");
await Task.Yield();
}
text.Write("</pre><hr/></body></html>");
}
}
private TResolver GetResolver(string route)
{
var resolver = _resolvers.FirstOrDefault(r => r.Route == route);
if (resolver == null)
{
resolver = CreateResolver(route);
SelfCheck.Assert(resolver != null, $"{nameof(CreateResolver)} returned null.");
_resolvers.Add(resolver);
}
return(resolver);
}