public void ShadowScopeCompleteWithFileConflict()
{
var path = HostingEnvironment.MapPathContentRoot("FileSysTests");
var shadowfs = HostingEnvironment.MapPathContentRoot(Constants.SystemDirectories.TempData.EnsureEndsWith('/') + "ShadowFs");
Directory.CreateDirectory(path);
var scopedFileSystems = false;
var phy = new PhysicalFileSystem(IOHelper, HostingEnvironment, Logger, path, "ignore");
var globalSettings = Options.Create(new GlobalSettings());
var fileSystems = new FileSystems(NullLoggerFactory.Instance, IOHelper, globalSettings, HostingEnvironment)
{
IsScoped = () => scopedFileSystems
};
var shadowPath = $"x/{Guid.NewGuid().ToString("N").Substring(0, 6)}";
var sw = fileSystems.CreateShadowWrapper(phy, shadowPath);
using (var ms = new MemoryStream(Encoding.UTF8.GetBytes("foo")))
sw.AddFile("sub/f1.txt", ms);
Assert.IsTrue(phy.FileExists("sub/f1.txt"));
string id;
scopedFileSystems = true; // pretend we have a scope
var scope = new ShadowFileSystems(fileSystems, id = ShadowWrapper.CreateShadowId(HostingEnvironment));
Assert.IsTrue(Directory.Exists(shadowfs + "/" + id));
using (var ms = new MemoryStream(Encoding.UTF8.GetBytes("foo")))
sw.AddFile("sub/f2.txt", ms);
Assert.IsFalse(phy.FileExists("sub/f2.txt"));
// pretend we're another thread w/out scope
scopedFileSystems = false;
using (var ms = new MemoryStream(Encoding.UTF8.GetBytes("bar")))
sw.AddFile("sub/f2.txt", ms);
scopedFileSystems = true; // pretend we have a scope
Assert.IsTrue(phy.FileExists("sub/f2.txt")); // other thread has written out to fs
scope.Complete();
scope.Dispose();
scopedFileSystems = false;
Assert.IsTrue(phy.FileExists("sub/f2.txt"));
TestHelper.TryAssert(() => Assert.IsFalse(Directory.Exists(shadowfs + "/" + id)));
string text;
using (var s = phy.OpenFile("sub/f2.txt"))
using (var r = new StreamReader(s))
text = r.ReadToEnd();
// the shadow filesystem will happily overwrite anything it can
Assert.AreEqual("foo", text);
}
/// <summary>
/// Sets the filesystem used by the MediaFileManager
/// </summary>
/// <param name="builder">A builder.</param>
/// <param name="filesystemFactory">Factory method to create an IFileSystem implementation used in the MediaFileManager</param>
public static IUmbracoBuilder SetMediaFileSystem(this IUmbracoBuilder builder,
Func <IServiceProvider, IFileSystem> filesystemFactory)
{
builder.Services.AddUnique(
provider =>
{
IFileSystem filesystem = filesystemFactory(provider);
// We need to use the Filesystems to create a shadow wrapper,
// because shadow wrapper requires the IsScoped delegate from the FileSystems.
// This is used by the scope provider when taking control of the filesystems.
FileSystems fileSystems = provider.GetRequiredService <FileSystems>();
IFileSystem shadow = fileSystems.CreateShadowWrapper(filesystem, "media");
return(provider.CreateInstance <MediaFileManager>(shadow));
});
return(builder);
}
public void ShadowScopeCompleteWithDirectoryConflict()
{
var path = HostingEnvironment.MapPathContentRoot("FileSysTests");
var shadowfs =
HostingEnvironment.MapPathContentRoot(Constants.SystemDirectories.TempData.EnsureEndsWith('/') +
"ShadowFs");
Directory.CreateDirectory(path);
var scopedFileSystems = false;
var phy = new PhysicalFileSystem(IOHelper, HostingEnvironment, Logger, path, "ignore");
var globalSettings = Options.Create(new GlobalSettings());
var fileSystems =
new FileSystems(NullLoggerFactory.Instance, IOHelper, globalSettings, HostingEnvironment)
{
IsScoped = () => scopedFileSystems
};
var shadowPath = $"x/{Guid.NewGuid().ToString("N").Substring(0, 6)}";
var sw = fileSystems.CreateShadowWrapper(phy, shadowPath);
using (var ms = new MemoryStream(Encoding.UTF8.GetBytes("foo")))
{
sw.AddFile("sub/f1.txt", ms);
}
Assert.IsTrue(phy.FileExists("sub/f1.txt"));
string id;
scopedFileSystems = true; // pretend we have a scope
var scope = new ShadowFileSystems(fileSystems, id = ShadowWrapper.CreateShadowId(HostingEnvironment));
Assert.IsTrue(Directory.Exists(shadowfs + "/" + id));
using (var ms = new MemoryStream(Encoding.UTF8.GetBytes("foo")))
{
sw.AddFile("sub/f2.txt", ms);
}
Assert.IsFalse(phy.FileExists("sub/f2.txt"));
// pretend we're another thread w/out scope
scopedFileSystems = false;
using (var ms = new MemoryStream(Encoding.UTF8.GetBytes("bar")))
{
sw.AddFile("sub/f2.txt/f2.txt", ms);
}
scopedFileSystems = true; // pretend we have a scope
Assert.IsTrue(phy.FileExists("sub/f2.txt/f2.txt")); // other thread has written out to fs
using (var ms = new MemoryStream(Encoding.UTF8.GetBytes("foo")))
{
sw.AddFile("sub/f3.txt", ms);
}
Assert.IsFalse(phy.FileExists("sub/f3.txt"));
scope.Complete();
try
{
// no way this can work since we're trying to write a file
// but there's now a directory with the same name on the real fs
scope.Dispose();
Assert.Fail("Expected AggregateException.");
}
catch (AggregateException ae)
{
Assert.AreEqual(1, ae.InnerExceptions.Count);
var e = ae.InnerExceptions[0];
Assert.IsNotNull(e.InnerException);
Assert.IsInstanceOf <AggregateException>(e);
ae = (AggregateException)e;
Assert.AreEqual(1, ae.InnerExceptions.Count);
e = ae.InnerExceptions[0];
Assert.IsNotNull(e.InnerException);
Assert.IsInstanceOf <Exception>(e.InnerException);
}
// still, the rest of the changes has been applied ok
Assert.IsTrue(phy.FileExists("sub/f3.txt"));
}
public void ShadowScopeComplete()
{
var loggerFactory = NullLoggerFactory.Instance;
var path = HostingEnvironment.MapPathContentRoot("FileSysTests");
var shadowfs =
HostingEnvironment.MapPathContentRoot(Constants.SystemDirectories.TempData.EnsureEndsWith('/') +
"ShadowFs");
Directory.CreateDirectory(path);
Directory.CreateDirectory(shadowfs);
var scopedFileSystems = false;
var phy = new PhysicalFileSystem(IOHelper, HostingEnvironment, Logger, path, "ignore");
var globalSettings = Options.Create(new GlobalSettings());
var fileSystems =
new FileSystems(loggerFactory, IOHelper, globalSettings, HostingEnvironment)
{
IsScoped = () => scopedFileSystems
};
var shadowPath = $"x/{Guid.NewGuid().ToString("N").Substring(0, 6)}";
var sw = (ShadowWrapper)fileSystems.CreateShadowWrapper(phy, shadowPath);
using (var ms = new MemoryStream(Encoding.UTF8.GetBytes("foo")))
{
sw.AddFile("sub/f1.txt", ms);
}
Assert.IsTrue(phy.FileExists("sub/f1.txt"));
string id;
// explicit shadow without scope does not work
sw.Shadow(id = ShadowWrapper.CreateShadowId(HostingEnvironment));
Assert.IsTrue(Directory.Exists(shadowfs + "/" + id));
using (var ms = new MemoryStream(Encoding.UTF8.GetBytes("foo")))
{
sw.AddFile("sub/f2.txt", ms);
}
Assert.IsTrue(phy.FileExists("sub/f2.txt"));
sw.UnShadow(true);
Assert.IsTrue(phy.FileExists("sub/f2.txt"));
Assert.IsFalse(Directory.Exists(shadowfs + "/" + id));
// shadow with scope but no complete does not complete
scopedFileSystems = true; // pretend we have a scope
var scope = new ShadowFileSystems(fileSystems, id = ShadowWrapper.CreateShadowId(HostingEnvironment));
Assert.IsTrue(Directory.Exists(shadowfs + "/" + id));
using (var ms = new MemoryStream(Encoding.UTF8.GetBytes("foo")))
{
sw.AddFile("sub/f3.txt", ms);
}
Assert.IsFalse(phy.FileExists("sub/f3.txt"));
var dirs = Directory.GetDirectories(shadowfs);
Assert.AreEqual(1, dirs.Length);
Assert.AreEqual((shadowfs + "/" + id).Replace('\\', '/'), dirs[0].Replace('\\', '/'));
dirs = Directory.GetDirectories(dirs[0]);
var typedDir = dirs.FirstOrDefault(x => x.Replace('\\', '/').EndsWith("/x"));
Assert.IsNotNull(typedDir);
dirs = Directory.GetDirectories(typedDir);
var scopedDir =
dirs.FirstOrDefault(x => x.Replace('\\', '/').EndsWith("/" + shadowPath)); // this is where files go
Assert.IsNotNull(scopedDir);
scope.Dispose();
scopedFileSystems = false;
Assert.IsFalse(phy.FileExists("sub/f3.txt"));
TestHelper.TryAssert(() => Assert.IsFalse(Directory.Exists(shadowfs + "/" + id)));
// shadow with scope and complete does complete
scopedFileSystems = true; // pretend we have a scope
scope = new ShadowFileSystems(fileSystems, id = ShadowWrapper.CreateShadowId(HostingEnvironment));
Assert.IsTrue(Directory.Exists(shadowfs + "/" + id));
using (var ms = new MemoryStream(Encoding.UTF8.GetBytes("foo")))
{
sw.AddFile("sub/f4.txt", ms);
}
Assert.IsFalse(phy.FileExists("sub/f4.txt"));
Assert.AreEqual(1, Directory.GetDirectories(shadowfs).Length);
scope.Complete();
scope.Dispose();
scopedFileSystems = false;
TestHelper.TryAssert(() => Assert.AreEqual(0, Directory.GetDirectories(shadowfs).Length));
Assert.IsTrue(phy.FileExists("sub/f4.txt"));
Assert.IsFalse(Directory.Exists(shadowfs + "/" + id));
// test scope for "another thread"
scopedFileSystems = true; // pretend we have a scope
scope = new ShadowFileSystems(fileSystems, id = ShadowWrapper.CreateShadowId(HostingEnvironment));
Assert.IsTrue(Directory.Exists(shadowfs + "/" + id));
using (var ms = new MemoryStream(Encoding.UTF8.GetBytes("foo")))
{
sw.AddFile("sub/f5.txt", ms);
}
Assert.IsFalse(phy.FileExists("sub/f5.txt"));
// pretend we're another thread w/out scope
scopedFileSystems = false;
using (var ms = new MemoryStream(Encoding.UTF8.GetBytes("foo")))
{
sw.AddFile("sub/f6.txt", ms);
}
scopedFileSystems = true; // pretend we have a scope
Assert.IsTrue(phy.FileExists("sub/f6.txt")); // other thread has written out to fs
scope.Complete();
scope.Dispose();
scopedFileSystems = false;
Assert.IsTrue(phy.FileExists("sub/f5.txt"));
TestHelper.TryAssert(() => Assert.IsFalse(Directory.Exists(shadowfs + "/" + id)));
}
