public void CreateFileChangeToken_DoesNotAllowPathsAboveRoot()
{
using (var root = new DisposableFileSystem())
using (var fileSystemWatcher = new MockFileSystemWatcher(root.RootPath))
using (var physicalFilesWatcher = new PhysicalFilesWatcher(root.RootPath + Path.DirectorySeparatorChar, fileSystemWatcher, pollForChanges: false))
{
var token = physicalFilesWatcher.CreateFileChangeToken(Path.GetFullPath(Path.Combine(root.RootPath, "..")));
Assert.IsType <NullChangeToken>(token);
token = physicalFilesWatcher.CreateFileChangeToken(Path.GetFullPath(Path.Combine(root.RootPath, "../")));
Assert.IsType <NullChangeToken>(token);
token = physicalFilesWatcher.CreateFileChangeToken("..");
Assert.IsType <NullChangeToken>(token);
}
}
public string GetFileVersionHash(string physicalPath)
{
if (physicalPath == null)
{
throw new ArgumentNullException(nameof(physicalPath));
}
string result = null;
if (File.Exists(physicalPath))
{
var cacheKey = CacheKey.With(GetType(), "GetVersion", physicalPath);
result = _platformMemoryCache.GetOrCreateExclusive(cacheKey, cacheEntry =>
{
cacheEntry.AddExpirationToken(_fileSystemWatcher.CreateFileChangeToken(GetRelativePath(physicalPath)));
using (var stream = File.OpenRead(physicalPath))
{
using (var hashAlgorithm = CryptoConfig.AllowOnlyFipsAlgorithms ? (SHA256) new SHA256CryptoServiceProvider() : new SHA256Managed())
{
return($"{WebEncoders.Base64UrlEncode(hashAlgorithm.ComputeHash(stream))}");
}
}
});
}
return(result);
}
public IChangeToken Watch(string filter)
{
if (filter == null)
{
return(NoopChangeToken.Singleton);
}
if (PathNavigatesAboveRoot(filter))
{
return(NoopChangeToken.Singleton);
}
// Relative paths starting with a leading slash okay
if (filter.StartsWith("/", StringComparison.Ordinal))
{
filter = filter.Substring(1);
}
// Absolute paths not permitted.
if (Path.IsPathRooted(filter))
{
return(NoopChangeToken.Singleton);
}
return(_filesWatcher.CreateFileChangeToken(filter));
}
public IChangeToken Watch(string filter)
{
if (filter == null || PathUtils.HasInvalidFilterChars(filter))
{
return(NullChangeToken.Singleton);
}
filter = filter.TrimStart(_pathSeparators);
return(_filesWatcher.CreateFileChangeToken(filter));
}
/// <summary>
/// <para>Creates a <see cref="IChangeToken" /> for the specified <paramref name="filter" />.</para>
/// <para>Globbing patterns are interpreted by <seealso cref="Microsoft.Extensions.FileSystemGlobbing.Matcher" />.</para>
/// </summary>
/// <param name="filter">
/// Filter string used to determine what files or folders to monitor. Example: **/*.cs, *.*,
/// subFolder/**/*.cshtml.
/// </param>
/// <returns>
/// An <see cref="IChangeToken" /> that is notified when a file matching <paramref name="filter" /> is added,
/// modified or deleted. Returns a <see cref="NullChangeToken" /> if <paramref name="filter" /> has invalid filter
/// characters or if <paramref name="filter" /> is an absolute path or outside the root directory specified in the
/// constructor <seealso cref="PhysicalFileProvider(string)" />.
/// </returns>
public IChangeToken Watch(string filter)
{
if (filter == null || PathUtils.HasInvalidFilterChars(filter))
{
return(NullChangeToken.Singleton);
}
// Relative paths starting with leading slashes are okay
filter = filter.TrimStart(_pathSeparators);
return(_filesWatcher.CreateFileChangeToken(filter));
}
public virtual IChangeToken Watch(string path)
{
//TODO: Test with symbolic links
if (_fileSystemWatcher != null)
{
return(_fileSystemWatcher.CreateFileChangeToken(path));
}
else
{
return(new CancellationChangeToken(new CancellationToken()));
}
}
public virtual IChangeToken Watch(string path)
{
//TODO: Test with symbolic links
if (_fileSystemWatcher != null)
{
// Absolute paths not permitted for watcher, need to convert it to relative
if (Path.IsPathRooted(path))
{
path = GetRelativePath(path).TrimStart('/');
}
return(_fileSystemWatcher.CreateFileChangeToken(path));
}
else
{
return(new CancellationChangeToken(new CancellationToken()));
}
}
/// <summary>
/// <para>Creates a <see cref="IChangeToken" /> for the specified <paramref name="filter" />.</para>
/// <para>Globbing patterns are interpreted by <seealso cref="HD.Configuration.FileExtensions.Matcher" />.</para>
/// </summary>
/// <param name="filter">
/// Filter string used to determine what files or folders to monitor. Example: **/*.cs, *.*,
/// subFolder/**/*.cshtml.
/// </param>
/// <returns>
/// An <see cref="IChangeToken" /> that is notified when a file matching <paramref name="filter" /> is added,
/// modified or deleted. Returns a <see cref="NullChangeToken" /> if <paramref name="filter" /> has invalid filter
/// characters or if <paramref name="filter" /> is an absolute path or outside the root directory specified in the
/// constructor <seealso cref="PhysicalFileProvider(string)" />.
/// </returns>
public IChangeToken Watch(string filter)
{
if (filter == null || HasInvalidFilterChars(filter))
{
return(NullChangeToken.Singleton);
}
// Relative paths starting with leading slashes are okay
filter = filter.TrimStart(_pathSeparators);
// Absolute paths and paths traversing above root not permitted.
if (Path.IsPathRooted(filter) || PathNavigatesAboveRoot(filter))
{
return(NullChangeToken.Singleton);
}
return(_filesWatcher.CreateFileChangeToken(filter));
}
public async Task HandlesOnRenamedEventsThatMatchRootPath()
{
using (var root = new DisposableFileSystem())
using (var fileSystemWatcher = new MockFileSystemWatcher(root.RootPath))
using (var physicalFilesWatcher = new PhysicalFilesWatcher(root.RootPath + Path.DirectorySeparatorChar, fileSystemWatcher, pollForChanges: false))
{
var token = physicalFilesWatcher.CreateFileChangeToken("**");
var called = false;
token.RegisterChangeCallback(o => called = true, null);
fileSystemWatcher.CallOnRenamed(new RenamedEventArgs(WatcherChangeTypes.Renamed, root.RootPath, string.Empty, string.Empty));
await Task.Delay(WaitTimeForTokenToFire).ConfigureAwait(false);
Assert.False(called, "Callback should not have been triggered");
fileSystemWatcher.CallOnRenamed(new RenamedEventArgs(WatcherChangeTypes.Renamed, root.RootPath, "old.txt", "new.txt"));
await Task.Delay(WaitTimeForTokenToFire).ConfigureAwait(false);
Assert.True(called, "Callback should have been triggered");
}
}
