private void GetActions(HtmlNode node, HtmlNode parent)
{
string controlConverterType = "NonWebFormsControl";
if (SupportedControls.ControlRulesMap.ContainsKey(node.Name))
{
var conversionAction = new ControlConversionAction(node, parent, SupportedControls.ControlRulesMap[node.Name]);
controlConverterType = conversionAction.ControlConverter.GetType().Name;
_controlActions.Add(conversionAction);
}
else if (SupportedControls.UserControls.UserControlRulesMap.ContainsKey(node.Name))
{
var conversionAction = new ControlConversionAction(node, parent, SupportedControls.UserControls.UserControlRulesMap[node.Name]);
controlConverterType = conversionAction.ControlConverter.GetType().Name;
_controlActions.Add(conversionAction);
}
else
{
Match aspControlTagRegex = AspControlsRegex.Match(node.Name);
if (aspControlTagRegex.Success)
{
controlConverterType = UnSupportedControlConverter;
}
}
_metricsContext.CollectActionMetrics(WebFormsActionType.ControlConversion, controlConverterType, node.Name);
}
public override Task <IEnumerable <FileInformation> > MigrateClassAsync()
{
LogStart();
_metricsContext.CollectActionMetrics(WebFormsActionType.ClassConversion, ActionName);
// NOTE: Removed temporarily until usings can be better determined, at the moment, too
// many are being removed
//var requiredNamespaces = _sourceFileSemanticModel.GetNamespacesReferencedByType(_originalDeclarationSyntax);
//var namespaceNames = requiredNamespaces.Select(namespaceSymbol => namespaceSymbol.ToDisplayString()).Append(Constants.BlazorComponentsNamespace);
var requiredNamespaces = _sourceFileSemanticModel.GetOriginalUsingNamespaces().Append(Constants.BlazorComponentsNamespace);
requiredNamespaces = CodeSyntaxHelper.RemoveFrameworkUsings(requiredNamespaces);
var usingStatements = CodeSyntaxHelper.BuildUsingStatements(requiredNamespaces);
var modifiedClass = ((ClassDeclarationSyntax)_originalDeclarationSyntax)
// Remove outdated base type references
// TODO: Scan and remove specific base types in the future
.ClearBaseTypes()
// ComponentBase base class is added because user controls become
// normal razor components
.AddBaseType(Constants.ComponentBaseClass);
var namespaceNode = CodeSyntaxHelper.BuildNamespace(_originalClassSymbol.ContainingNamespace?.ToDisplayString(), modifiedClass);
DoCleanUp();
LogEnd();
var newRelativePath = GetNewRelativePath();
var fileContent = CodeSyntaxHelper.GetFileSyntaxAsString(namespaceNode, usingStatements);
var result = new[] { new FileInformation(newRelativePath, Encoding.UTF8.GetBytes(fileContent)) };
return(Task.FromResult((IEnumerable <FileInformation>)result));
}
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 override Task <IEnumerable <FileInformation> > MigrateFileAsync()
{
LogStart();
_metricsContext.CollectActionMetrics(WebFormsActionType.FileConversion, ChildActionType);
// TODO: Extract info from project files and
// call _blazorWorkspaceManager.CreateProjectFile
// and _webFormsWorkspaceManager.CreateProjectFile
// TODO: Retrieve cancellation token from thread manager service
// _blazorWorkspaceManager.WaitUntilAllDocumentsInWorkspace(token);
// TODO: Extract accumulated project info from
// workspace and use it to build the actual
// project file
string newCsProjContent = GenerateProjectFileContents(_projectAnalyzer.ProjectResult,
_projectAnalyzer.ProjectConfiguration, _projectAnalyzer.ProjectReferences, _projectAnalyzer.MetaReferences);
FileInformation fi = new FileInformation(FilePathHelper.RemoveDuplicateDirectories(RelativePath), Encoding.UTF8.GetBytes(newCsProjContent));
var fileList = new List <FileInformation>()
{
fi
};
DoCleanUp();
LogEnd();
return(Task.FromResult((IEnumerable <FileInformation>)fileList));
}
public static string ConstructBlazorDirectives(string content, string originalFilePath, string projectName, ViewImportService viewImportService, WebFormMetricContext metricContext)
{
var directiveName = DirectiveNameRegex.Match(content).Groups[DirectiveNameRegexGroupName].Value;
var directiveConverter = SupportedControls.DirectiveRulesMap.ContainsKey(directiveName) ?
SupportedControls.DirectiveRulesMap[directiveName] : SupportedControls.DefaultDirectiveConverter;
metricContext.CollectActionMetrics(WebFormsActionType.DirectiveConversion, directiveName + "DirectiveConverter");
return(directiveConverter.ConvertDirective(directiveName, content.Trim(), originalFilePath, projectName, viewImportService));
}
public override async Task <IEnumerable <FileInformation> > MigrateClassAsync()
{
LogStart();
_metricsContext.CollectActionMetrics(WebFormsActionType.ClassConversion, ActionName);
// Make this call once now so we don't have to keep doing it later
var originalDescendantNodes = _originalDeclarationSyntax.DescendantNodes();
// Currently not implementing service layer so add blank line with a comment instead
var configureServicesLines = new[]
{
CodeSyntaxHelper.GetBlankLine().AddComment(string.Format(Constants.OperationUnattemptedCommentTemplate, MigrateServiceLayerOperation), isLeading: false)
};
// Iterate through methods and process them as needed
ProcessMethods(originalDescendantNodes.OfType <MethodDeclarationSyntax>());
// With middleware lambdas added we need to retrieve registrations
// before we have all statements required to build startup class
await InsertRequestPipelineMiddlewareRegistrations();
var fileText = string.Empty;
try
{
var startupClassDeclaration = StartupSyntaxHelper.ConstructStartupClass(
constructorAdditionalStatements: originalDescendantNodes.OfType <ConstructorDeclarationSyntax>().FirstOrDefault()?.Body?.Statements,
configureAdditionalStatements: _configureMethodStatements,
configureServicesAdditionalStatements: configureServicesLines,
additionalFieldDeclarations: originalDescendantNodes.OfType <FieldDeclarationSyntax>(),
additionalPropertyDeclarations: originalDescendantNodes.OfType <PropertyDeclarationSyntax>(),
additionalMethodDeclarations: _keepableMethods)
.AddClassBlockComment(_endOfClassComments, false);
var containingNamespace = CodeSyntaxHelper.BuildNamespace(_originalClassSymbol.ContainingNamespace?.ToDisplayString(), startupClassDeclaration);
fileText = CodeSyntaxHelper.GetFileSyntaxAsString(containingNamespace, await GetAllUsingStatements());
}
catch (Exception e)
{
LogHelper.LogError(e, $"{Rules.Config.Constants.WebFormsErrorTag}Failed to construct new Startup file content from {OriginalClassName} class at {_fullPath}");
}
DoCleanUp();
LogEnd();
// Global.asax.cs turns into Startup.cs
var newRelativePath = FilePathHelper.RemoveDuplicateDirectories(Path.Combine(Path.GetDirectoryName(_relativePath), Constants.StartupFileName));
return(new[] { new FileInformation(newRelativePath, Encoding.UTF8.GetBytes(fileText)) });
}
public override Task <IEnumerable <FileInformation> > MigrateFileAsync()
{
LogStart();
_metricsContext.CollectActionMetrics(WebFormsActionType.FileConversion, ChildActionType);
FileInformation fi = new FileInformation(FilePathHelper.RemoveDuplicateDirectories(RelativePath), File.ReadAllBytes(FullPath));
var fileList = new List <FileInformation>();
fileList.Add(fi);
DoCleanUp();
LogEnd();
return(Task.FromResult((IEnumerable <FileInformation>)fileList));
}
public override async Task <IEnumerable <FileInformation> > MigrateFileAsync()
{
LogStart();
_metricsContext.CollectActionMetrics(WebFormsActionType.FileConversion, ChildActionType);
// Need to have ToList call here to enumerate the collection and ensure class
// converters are running before we retire this file converter task
var classMigrationTasks = _classConverters.Select(converter => converter.MigrateClassAsync()).ToList();
// We want to do our cleanup now because from this point on all migration tasks
// are done by class converters and we want to make sure that we retire the task
// related to this file converter before we await
DoCleanUp();
var allMigrationTasks = Task.WhenAll(classMigrationTasks);
try
{
await allMigrationTasks;
}
// We don't provide a reference for the thrown exception here because await auto-
// unwraps aggregate exceptions and throws only the first encountered exception
catch
{
// We access allMigrationTasks.Exception instead to provide the original AggregateException
var allExceptions = allMigrationTasks.Exception.Flatten().InnerExceptions;
foreach (Exception e in allExceptions)
{
LogHelper.LogError(e, $"{Rules.Config.Constants.WebFormsErrorTag}Failed to migrate class");
}
}
var result = classMigrationTasks.Where(t => t.Status == TaskStatus.RanToCompletion).SelectMany(t => t.Result);
LogEnd();
return(result);
}
public override Task <IEnumerable <FileInformation> > MigrateFileAsync()
{
LogStart();
_metricsContext.CollectActionMetrics(WebFormsActionType.FileConversion, ChildActionType);
string filename = Path.GetFileName(RelativePath);
var fileList = new List <FileInformation>();
//Currently only handles web.config, package.config handled by ProjectFileConverter, others not handled
if (filename.Equals(WebConfigFile, StringComparison.InvariantCultureIgnoreCase))
{
//ProjectType WebForms doesn't really exist yet, but can be added for more specific configuration
ConfigMigrate configMigrate = new ConfigMigrate(FullPath, ProjectType.WebForms);
var migratedString = configMigrate.WebformsWebConfigMigrateHelper();
string newPath = FilePathHelper.RemoveDuplicateDirectories(Path.Combine(_relativeDirectory, Constants.AppSettingsFileName));
fileList.Add(new FileInformation(newPath, Encoding.UTF8.GetBytes(migratedString)));
}
DoCleanUp();
LogEnd();
return(Task.FromResult((IEnumerable <FileInformation>)fileList));
}
public override Task <IEnumerable <FileInformation> > MigrateFileAsync()
{
LogStart();
_metricsContext.CollectActionMetrics(WebFormsActionType.FileConversion, ChildActionType);
// We want to add the relative path to _Host.cshtml before
// prepending wwwroot/ because the web root folder is ignored
// when fetching static files
if (RelativePath.EndsWith(Constants.StyleSheetFileExtension, StringComparison.InvariantCultureIgnoreCase))
{
_hostPageService.AddStyleSheetPath(RelativePath);
}
var newPath = FilePathHelper.RemoveDuplicateDirectories(Path.Combine(Constants.WebRootDirectoryName, RelativePath));
var fullPath = Path.Combine(ProjectPath, RelativePath);
FileInformation fi = new FileInformation(newPath, File.ReadAllBytes(fullPath));
var fileList = new[] { fi };
DoCleanUp();
LogEnd();
return(Task.FromResult((IEnumerable <FileInformation>)fileList));
}
public override Task <IEnumerable <FileInformation> > MigrateClassAsync()
{
LogStart();
_metricsContext.CollectActionMetrics(WebFormsActionType.ClassConversion, ActionName);
// 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())
// // This is so we can use ComponentBase base class
// .Append(Constants.BlazorComponentsNamespace);
var requiredNamespaceNames = _sourceFileSemanticModel.GetOriginalUsingNamespaces().Append(Constants.BlazorComponentsNamespace);
requiredNamespaceNames = CodeSyntaxHelper.RemoveFrameworkUsings(requiredNamespaceNames);
var allMethods = _originalDeclarationSyntax.DescendantNodes().OfType <MethodDeclarationSyntax>();
var currentClassDeclaration = ((ClassDeclarationSyntax)_originalDeclarationSyntax)
// Need to track methods so modifications can be made one after another
.TrackNodes(allMethods)
// Remove outdated base type references
// TODO: Scan and remove specific base types in the future
.ClearBaseTypes()
// ComponentBase base class is required to use lifecycle events
.AddBaseType(Constants.ComponentBaseClass);
var orderedMethods = allMethods
.Select(method => (method, LifecycleManagerService.CheckMethodPageLifecycleHook(method)))
// Filter out non-lifecycle methods
.Where(methodTuple => methodTuple.Item2 != null)
// Order matters within new events so we order before processing
.OrderBy(methodTuple =>
{
return((int)methodTuple.Item2);
});
// Remove old lifecycle methods, sort, and record their content
foreach (var methodTuple in orderedMethods)
{
try
{
// This records the statements in the proper collection
ProcessLifecycleEventMethod(methodTuple.Item1, (WebFormsPageLifecycleEvent)methodTuple.Item2);
}
catch (Exception e)
{
LogHelper.LogError(e, $"{Rules.Config.Constants.WebFormsErrorTag}Failed to process WebForms lifecycle event method {methodTuple.Item1.Identifier} " +
$"from {OriginalClassName} class at {_fullPath}");
}
// Refresh node before removing
var currentMethodNode = currentClassDeclaration.GetCurrentNode(methodTuple.Item1);
currentClassDeclaration = currentClassDeclaration.RemoveNode(currentMethodNode, SyntaxRemoveOptions.AddElasticMarker);
}
// Construct new lifecycle methods and add them to the class
foreach (var newLifecycleEventKvp in _newLifecycleLines)
{
var newLifecycleEvent = newLifecycleEventKvp.Key;
var newLifecycleEventStatements = newLifecycleEventKvp.Value;
try
{
var newMethodDeclaration = ComponentSyntaxHelper.ConstructComponentLifecycleMethod(newLifecycleEvent, newLifecycleEventStatements);
currentClassDeclaration = currentClassDeclaration.AddMembers(newMethodDeclaration);
}
catch (Exception e)
{
LogHelper.LogError(e, $"{Rules.Config.Constants.WebFormsErrorTag}Failed to construct new lifecycle event method for {newLifecycleEvent} Blazor event " +
$"using {OriginalClassName} class at {_fullPath}");
}
}
// If we need to make use of the dispose method, add the IDisposable
// interface to the class, usings are fine as is because this come from
// the System namespace
if (_newLifecycleLines.ContainsKey(BlazorComponentLifecycleEvent.Dispose))
{
currentClassDeclaration = currentClassDeclaration.AddBaseType(Constants.DisposableInterface);
}
var namespaceNode = CodeSyntaxHelper.BuildNamespace(_originalClassSymbol.ContainingNamespace?.ToDisplayString(), currentClassDeclaration);
var fileText = CodeSyntaxHelper.GetFileSyntaxAsString(namespaceNode, CodeSyntaxHelper.BuildUsingStatements(requiredNamespaceNames));
DoCleanUp();
LogEnd();
var result = new[] { new FileInformation(GetNewRelativePath(), Encoding.UTF8.GetBytes(fileText)) };
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));
}