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// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
namespace WixToolset.Core.ExtensibilityServices
{
using System;
using System.Collections.Generic;
using System.IO;
using WixToolset.Core.Bind;
using WixToolset.Data;
using WixToolset.Data.Symbols;
using WixToolset.Data.WindowsInstaller.Rows;
using WixToolset.Extensibility.Data;
using WixToolset.Extensibility.Services;
internal class BackendHelper : IBackendHelper
{
private static readonly string[] ReservedFileNames = { "CON", "PRN", "AUX", "NUL", "COM1", "COM2", "COM3", "COM4", "COM5", "COM6", "COM7", "COM8", "COM9", "LPT1", "LPT2", "LPT3", "LPT4", "LPT5", "LPT6", "LPT7", "LPT8", "LPT9" };
public BackendHelper(IWixToolsetServiceProvider serviceProvider)
{
this.Messaging = serviceProvider.GetService<IMessaging>();
}
private IMessaging Messaging { get; }
public IFileFacade CreateFileFacade(FileSymbol file, AssemblySymbol assembly)
{
return new FileFacade(file, assembly);
}
public IFileFacade CreateFileFacade(FileRow fileRow)
{
return new FileFacade(fileRow);
}
public IFileFacade CreateFileFacadeFromMergeModule(FileSymbol fileSymbol)
{
return new FileFacade(true, fileSymbol);
}
public IFileTransfer CreateFileTransfer(string source, string destination, bool move, SourceLineNumber sourceLineNumbers = null)
{
var sourceFullPath = this.GetValidatedFullPath(sourceLineNumbers, source);
var destinationFullPath = this.GetValidatedFullPath(sourceLineNumbers, destination);
return (String.IsNullOrEmpty(sourceFullPath) || String.IsNullOrEmpty(destinationFullPath)) ? null : new FileTransfer
{
Source = sourceFullPath,
Destination = destinationFullPath,
Move = move,
SourceLineNumbers = sourceLineNumbers,
Redundant = String.Equals(sourceFullPath, destinationFullPath, StringComparison.OrdinalIgnoreCase)
};
}
public string CreateGuid()
{
return Common.GenerateGuid();
}
public string CreateGuid(Guid namespaceGuid, string value)
{
return Uuid.NewUuid(namespaceGuid, value).ToString("B").ToUpperInvariant();
}
public IResolvedDirectory CreateResolvedDirectory(string directoryParent, string name)
{
return new ResolvedDirectory
{
DirectoryParent = directoryParent,
Name = name
};
}
public IEnumerable<ITrackedFile> ExtractEmbeddedFiles(IEnumerable<IExpectedExtractFile> embeddedFiles)
{
var command = new ExtractEmbeddedFilesCommand(this, embeddedFiles);
command.Execute();
return command.TrackedFiles;
}
public string GenerateIdentifier(string prefix, params string[] args)
{
return Common.GenerateIdentifier(prefix, args);
}
public string GetCanonicalRelativePath(SourceLineNumber sourceLineNumbers, string elementName, string attributeName, string relativePath)
{
return Common.GetCanonicalRelativePath(sourceLineNumbers, elementName, attributeName, relativePath, this.Messaging);
}
public int GetValidCodePage(string value, bool allowNoChange = false, bool onlyAnsi = false, SourceLineNumber sourceLineNumbers = null)
{
return Common.GetValidCodePage(value, allowNoChange, onlyAnsi, sourceLineNumbers);
}
public string GetMsiFileName(string value, bool source, bool longName)
{
return Common.GetName(value, source, longName);
}
public void ResolveDelayedFields(IEnumerable<IDelayedField> delayedFields, Dictionary<string, string> variableCache)
{
var command = new ResolveDelayedFieldsCommand(this.Messaging, delayedFields, variableCache);
command.Execute();
}
public string[] SplitMsiFileName(string value)
{
return Common.GetNames(value);
}
public ITrackedFile TrackFile(string path, TrackedFileType type, SourceLineNumber sourceLineNumbers = null)
{
return new TrackedFile(path, type, sourceLineNumbers);
}
public bool IsValidBinderVariable(string variable)
{
return Common.IsValidBinderVariable(variable);
}
public bool IsValidFourPartVersion(string version)
{
return Common.IsValidFourPartVersion(version);
}
public bool IsValidIdentifier(string id)
{
return Common.IsIdentifier(id);
}
public bool IsValidLongFilename(string filename, bool allowWildcards, bool allowRelative)
{
return Common.IsValidLongFilename(filename, allowWildcards, allowRelative);
}
public bool IsValidShortFilename(string filename, bool allowWildcards)
{
return Common.IsValidShortFilename(filename, allowWildcards);
}
private string GetValidatedFullPath(SourceLineNumber sourceLineNumbers, string path)
{
try
{
var result = Path.GetFullPath(path);
var filename = Path.GetFileName(result);
foreach (var reservedName in ReservedFileNames)
{
if (reservedName.Equals(filename, StringComparison.OrdinalIgnoreCase))
{
this.Messaging.Write(ErrorMessages.InvalidFileName(sourceLineNumbers, path));
return null;
}
}
return result;
}
catch (ArgumentException)
{
this.Messaging.Write(ErrorMessages.InvalidFileName(sourceLineNumbers, path));
}
catch (PathTooLongException)
{
this.Messaging.Write(ErrorMessages.PathTooLong(sourceLineNumbers, path));
}
return null;
}
}
}
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