public override Task <IEnumerable <FileInformation> > MigrateClassAsync()
{
LogStart();
_metricsContext.CollectActionMetrics(WebFormsActionType.ClassConversion, ActionName);
// NOTE: We could just read the file from the disk and retrieve the bytes like
// that but instead I opted to "rebuild" the type in case we wanted to add comments
// or something else to these undefined code files, most likely though we may still
// want to scan parts of these files and remove/alter/take note of certain lines/info
var newRelativePath = FilePathHelper.RemoveDuplicateDirectories(FilePathHelper.AlterFileName(_relativePath, newFileName: _originalClassSymbol.Name));
// NOTE: Removed temporarily until usings can be better determined, at the moment, too
// many are being removed
//var sourceClassComponents = GetSourceClassComponents();
var namespaceNames = _sourceFileSemanticModel.GetOriginalUsingNamespaces().Append(Constants.BlazorComponentsNamespace);
namespaceNames = CodeSyntaxHelper.RemoveFrameworkUsings(namespaceNames);
var usingStatements = CodeSyntaxHelper.BuildUsingStatements(namespaceNames);
var namespaceNode = CodeSyntaxHelper.BuildNamespace(_originalClassSymbol.ContainingNamespace?.ToDisplayString(), _originalDeclarationSyntax);
var fileText = CodeSyntaxHelper.GetFileSyntaxAsString(namespaceNode, usingStatements);
DoCleanUp();
LogEnd();
var result = new[] { new FileInformation(newRelativePath, Encoding.UTF8.GetBytes(fileText)) };
return(Task.FromResult((IEnumerable <FileInformation>)result));
}
public void AlterFileName_Properly_Replaces_File_Name_When_Extension_Not_Changed()
{
var inputFileName = "FileName1.aspx.cs";
var expectedOutputFileName = "FileName2.aspx.cs";
var actualOutputFileName = FilePathHelper.AlterFileName(inputFileName, newFileName: "FileName2", oldExtension: ".aspx.cs");
Assert.AreEqual(expectedOutputFileName, actualOutputFileName);
}
public void AlterFileName_Does_Not_Modify_Leading_Paths()
{
var leadingPath = Path.Combine("C:", "Dir1", "Dir2");
var inputString = Path.Combine(leadingPath, "FileName.txt");
var outputString = FilePathHelper.AlterFileName(inputString, newFileName: "NewFileName");
Assert.True(outputString.StartsWith(leadingPath));
}
private string GetNewRelativePath()
{
// TODO: Potentially remove certain folders from beginning of relative path
var newRelativePath = FilePathHelper.AlterFileName(_relativePath,
oldExtension: Constants.ControlCodeBehindExtension,
newExtension: Constants.RazorCodeBehindFileExtension);
return(FilePathHelper.RemoveDuplicateDirectories(Path.Combine(Constants.RazorComponentDirectoryName, newRelativePath)));
}
public void AlterFileName_Works_Properly_When_Name_And_Extension_Are_Changed()
{
var inputFileName = "FileName1.aspx.cs";
var expectedOutputFileName = "FileName2.razor";
var actualOutputFileName = FilePathHelper.AlterFileName(inputFileName,
newFileName: "FileName2",
oldExtension: ".aspx.cs",
newExtension: ".razor");
Assert.AreEqual(expectedOutputFileName, actualOutputFileName);
}
// View file converters will return razor file contents with
// only view layer, code behind will be created in another file
public override Task <IEnumerable <FileInformation> > MigrateFileAsync()
{
LogStart();
_metricsContext.CollectActionMetrics(WebFormsActionType.FileConversion, ChildActionType);
var result = new List <FileInformation>();
try
{
var htmlString = File.ReadAllText(FullPath);
// Replace directives first to build up list of user controls to be converted later by the ControlConverters
var projectName = Path.GetFileName(ProjectPath);
htmlString = EmbeddedCodeReplacers.ReplaceDirectives(htmlString, RelativePath, projectName, _viewImportService, _metricsContext);
// Convert the Web Forms controls to Blazor equivalent
var migratedDocument = GetRazorContents(htmlString);
var contents = migratedDocument.DocumentNode.WriteTo();
// We comment out the unknown user controls here instead of during
// traversal because the post-order nature may comment out controls
// that are migrated as part of an ancestor control before that ancestor
// can be processed
contents = ControlConverter.ConvertEmbeddedCode(contents, RelativePath, _viewImportService);
contents = UnknownControlRemover.RemoveUnknownTags(contents);
// Currently just changing extension to .razor, keeping filename and directory the same
// but Razor files are renamed and moved around, can't always use same filename/directory in the future
var newRelativePath = FilePathHelper.AlterFileName(RelativePath, newExtension: ".razor");
if (RelativePath.EndsWith(Constants.WebFormsPageMarkupFileExtension, StringComparison.InvariantCultureIgnoreCase))
{
newRelativePath = Path.Combine(Constants.RazorPageDirectoryName, newRelativePath);
}
else if (RelativePath.EndsWith(Constants.WebFormsMasterPageMarkupFileExtension, StringComparison.InvariantCultureIgnoreCase))
{
newRelativePath = Path.Combine(Constants.RazorLayoutDirectoryName, newRelativePath);
}
else if (RelativePath.EndsWith(Constants.WebFormsControlMarkupFileExtenion, StringComparison.InvariantCultureIgnoreCase))
{
newRelativePath = Path.Combine(Constants.RazorComponentDirectoryName, newRelativePath);
}
else
{
// Default action: file type is not supported. Set newRelativePath to null to
// prevent file creation.
newRelativePath = null;
}
DoCleanUp();
LogEnd();
if (newRelativePath != null)
{
var fileInformation = new FileInformation(FilePathHelper.RemoveDuplicateDirectories(newRelativePath),
Encoding.UTF8.GetBytes(contents));
result.Add(fileInformation);
}
}
catch (Exception e)
{
LogHelper.LogError(e, $"{Rules.Config.Constants.WebFormsErrorTag}Error migrating view file {FullPath}. A new file could not be generated.");
}
return(Task.FromResult((IEnumerable <FileInformation>)result));
}
public override Task <IEnumerable <FileInformation> > MigrateClassAsync()
{
LogStart();
_metricsContext.CollectActionMetrics(WebFormsActionType.ClassConversion, ActionName);
var className = _originalDeclarationSyntax.Identifier.ToString();
var namespaceName = _originalClassSymbol.ContainingNamespace?.ToDisplayString();
// NOTE: Removed temporarily until usings can be better determined, at the moment, too
// many are being removed
//var requiredNamespaceNames = _sourceFileSemanticModel
// .GetNamespacesReferencedByType(_originalDeclarationSyntax)
// .Select(namespaceSymbol => namespaceSymbol.ToDisplayString());
var requiredNamespaceNames = _sourceFileSemanticModel.GetOriginalUsingNamespaces()
.Union(MiddlewareSyntaxHelper.RequiredNamespaces);
requiredNamespaceNames = CodeSyntaxHelper.RemoveFrameworkUsings(requiredNamespaceNames);
// Make this call once now so we don't have to keep doing it later
var originalDescendantNodes = _originalDeclarationSyntax.DescendantNodes();
var keepableMethods = originalDescendantNodes.OfType <MethodDeclarationSyntax>();
var processRequestMethod = keepableMethods.Where(method => LifecycleManagerService.IsProcessRequestMethod(method)).SingleOrDefault();
IEnumerable <StatementSyntax> preHandleStatements;
if (processRequestMethod != null)
{
preHandleStatements = processRequestMethod.Body.Statements.AddComment(string.Format(Constants.CodeOriginCommentTemplate, Constants.ProcessRequestMethodName));
keepableMethods = keepableMethods.Where(method => !method.IsEquivalentTo(processRequestMethod));
_lifecycleManager.RegisterMiddlewareClass(WebFormsAppLifecycleEvent.RequestHandlerExecute, className, namespaceName, className, false);
}
else
{
preHandleStatements = new[]
{
CodeSyntaxHelper.GetBlankLine().AddComment(string.Format(Constants.IdentificationFailureCommentTemplate, ProcessRequestDiscovery, InvokePopulationOperation))
};
}
// We have completed any possible registration by this point
_lifecycleManager.NotifyMiddlewareSourceProcessed();
var fileText = string.Empty;
try
{
var middlewareClassDeclaration = MiddlewareSyntaxHelper.ConstructMiddlewareClass(
middlewareClassName: className,
shouldContinueAfterInvoke: false,
constructorAdditionalStatements: originalDescendantNodes.OfType <ConstructorDeclarationSyntax>().FirstOrDefault()?.Body?.Statements,
preHandleStatements: preHandleStatements,
additionalFieldDeclarations: originalDescendantNodes.OfType <FieldDeclarationSyntax>(),
additionalPropertyDeclarations: originalDescendantNodes.OfType <PropertyDeclarationSyntax>(),
additionalMethodDeclarations: keepableMethods);
var namespaceNode = CodeSyntaxHelper.BuildNamespace(namespaceName, middlewareClassDeclaration);
fileText = CodeSyntaxHelper.GetFileSyntaxAsString(namespaceNode, CodeSyntaxHelper.BuildUsingStatements(requiredNamespaceNames));
}
catch (Exception e)
{
LogHelper.LogError(e, $"{Rules.Config.Constants.WebFormsErrorTag}Failed to construct new HttpHandler file content from {OriginalClassName} class at {_fullPath}");
}
DoCleanUp();
LogEnd();
// Http modules are turned into middleware and so we use a new middleware directory
var newRelativePath = FilePathHelper.RemoveDuplicateDirectories(Path.Combine(Constants.MiddlewareDirectoryName, FilePathHelper.AlterFileName(_relativePath, newFileName: className)));
// TODO: Potentially remove certain folders from beginning of relative path
var result = new[] { new FileInformation(newRelativePath, Encoding.UTF8.GetBytes(fileText)) };
return(Task.FromResult((IEnumerable <FileInformation>)result));
}