private static Func <FileInfo, FileSystemInfo, bool> GetFor(PathMatchingMode pathMatchingMode)
{
Func <FileInfo, FileInfo, bool>? fileMatcher = null;
Func <FileInfo, DirectoryInfo, bool>?dirMatcher = null;
if ((pathMatchingMode & PathMatchingMode.AnyMatchingDirOrSubDir) != 0)
{
dirMatcher = AnyDirMatcher;
}
else if ((pathMatchingMode & PathMatchingMode.ExactDirMatch) != 0)
{
dirMatcher = ExactDirMatcher;
}
if ((pathMatchingMode & PathMatchingMode.AnyMatchingFileName) != 0)
{
fileMatcher = AnyFileMatcher;
}
else if ((pathMatchingMode & PathMatchingMode.ExactFileMatch) != 0)
{
fileMatcher = ExactFileMatcher;
}
return((script, fileSystemInfo)
=> script.Exists &&
fileSystemInfo.Exists &&
fileSystemInfo is FileInfo fileInfo
// if in the same directory and the file matches, or if in a subdirectory and it matches
? fileInfo.Directory?.FullName != script.Directory?.FullName
? dirMatcher?.Invoke(script, fileInfo.Directory !) ?? false
: fileMatcher?.Invoke(script, fileInfo) ?? false
: fileSystemInfo is DirectoryInfo directoryInfo &&
(dirMatcher?.Invoke(script, directoryInfo) ?? false));
/// <summary>
/// Creates a handler from the given delegate and, optionally, path matching mode.
/// </summary>
/// <remarks>
/// Example CSX file using this:
/// <code>
/// OppyHelpers.Handler
/// (
/// async (context, nextHandler) =>
/// {
/// Console.WriteLine("Hello!");
/// await nextHandler();
/// }
/// );
/// </code>
/// </remarks>
/// <param name="handler">The handler delegate to use.</param>
/// <param name="matchingMode">The default path matching mode to use.</param>
/// <returns>A scripted handler object.</returns>
public static HandlerScript Handler(Func <HttpContext, Func <Task>, Task> handler,
PathMatchingMode matchingMode = PathMatchingMode.Default)
{
return(new HandlerScript(handler, matchingMode));
}
/// <summary>
/// Creates a scripted handler using the given handler delegate and path matching mode (for the default path
/// matcher)
/// </summary>
/// <param name="handler">The handler delegate to use.</param>
/// <param name="pathMatchingMode">The path matching mode, used by the default path matcher.</param>
public HandlerScript(Func <HttpContext, Func <Task>, Task> handler, PathMatchingMode pathMatchingMode)
: this(handler, GetFor(pathMatchingMode))
{
}