private MsiDataContainer(LessIO.Path msiDatabaseFilePath)
{
using var db = new Database(msiDatabaseFilePath.PathString, DatabaseOpenMode.ReadOnly);
this.files = MsiFile.CreateMsiFilesFromMSI(db);
this.tables = db.Tables.OrderBy(tab => tab.Name).Select(table => TableWithData.Create(db, table.Name)).ToArray();
}
/// <summary>
/// Creates a list of <see cref="MsiFile"/> objects from the specified database.
/// </summary>
public static MsiFile[] CreateMsiFilesFromMSI(Database msidb)
{
TableRow[] rows = TableRow.GetRowsFromTable(msidb, "File");
// do some prep work to cache values from MSI for finding directories later...
MsiDirectory[] rootDirectories;
MsiDirectory[] allDirectories;
MsiDirectory.GetMsiDirectories(msidb, out rootDirectories, out allDirectories);
//find the target directory for each by reviewing the Component Table
TableRow[] components = TableRow.GetRowsFromTable(msidb, "Component"); //Component table: http://msdn.microsoft.com/en-us/library/aa368007(v=vs.85).aspx
//build a table of components keyed by it's "Component" column value
Hashtable componentsByComponentTable = new Hashtable();
foreach (TableRow component in components)
{
componentsByComponentTable[component.GetString("Component")] = component;
}
ArrayList /*<MsiFile>*/ files = new ArrayList(rows.Length);
foreach (TableRow row in rows)
{
MsiFile file = new MsiFile();
string fileName = row.GetString("FileName");
string[] split = fileName.Split('|');
file.ShortFileName = split[0];
if (split.Length > 1)
{
file.LongFileName = split[1];
}
else
{
file.LongFileName = split[0];
}
file.File = row.GetString("File");
file.FileSize = row.GetInt32("FileSize");
file.Version = row.GetString("Version");
file.Component = row.GetString("Component_");
file.Directory = GetDirectoryForFile(file, allDirectories, componentsByComponentTable);
files.Add(file);
}
return((MsiFile[])files.ToArray(typeof(MsiFile)));
}
private static MsiFile[] GetMsiFileFromFileNames(Path msi, string[] fileNamesToExtract)
{
var msiFiles = MsiFile.CreateMsiFilesFromMSI(msi);
Array.Sort(msiFiles, (f1, f2) => string.Compare(f1.LongFileName, f2.LongFileName, StringComparison.InvariantCulture));
var fileNamesToExtractAsMsiFiles = new List <MsiFile>();
foreach (var fileName in fileNamesToExtract)
{
var found = Array.BinarySearch(msiFiles, fileName, FileNameComparer.Default);
if (found >= 0)
{
fileNamesToExtractAsMsiFiles.Add(msiFiles[found]);
}
else
{
Console.WriteLine("File {0} was not found in the msi.", fileName);
}
}
return(fileNamesToExtractAsMsiFiles.ToArray());
}
private static MsiDirectory GetDirectoryForFile(MsiFile file, MsiDirectory[] allDirectories, IDictionary componentsByComponentTable)
{
// get the component for the file
TableRow componentRow = componentsByComponentTable[file.Component] as TableRow;
if (componentRow == null)
{
Debug.Assert(false, "File '{0}' has no component entry.", file.LongFileName);
return(null);
}
// found component, get the directory:
string componentDirectory = componentRow.GetString("Directory_");
MsiDirectory directory = FindDirectoryByDirectoryKey(allDirectories, componentDirectory);
if (directory != null)
{
//Trace.WriteLine(string.Format("Directory for '{0}' is '{1}'.", file.LongFileName, directory.GetPath()));
}
else
{
Debug.Fail(string.Format("directory not found for file '{0}'.", file.LongFileName));
}
return(directory);
}
/// <summary>
/// Extracts the compressed files from the specified MSI file to the specified output directory.
/// If specified, the list of <paramref name="filesToExtract"/> objects are the only files extracted.
/// </summary>
/// <param name="msi">The MSI file to extract files from.</param>
/// <param name="outputDir">The directory to extract the files into.</param>
/// <param name="filesToExtract">The files to extract or null or empty to extract all files.</param>
/// <param name="progressCallback">Will be called during during the operation with progress information, and upon completion. The argument will be of type <see cref="ExtractionProgress"/>.</param>
public static void ExtractFiles(Path msi, string outputDir, MsiFile[] filesToExtract, AsyncCallback progressCallback)
{
if (msi.IsEmpty)
{
throw new ArgumentNullException("msi");
}
if (string.IsNullOrEmpty(outputDir))
{
throw new ArgumentNullException("outputDir");
}
int filesExtractedSoFar = 0;
//Refrence on Embedding files: https://msdn.microsoft.com/en-us/library/aa369279.aspx
ExtractionProgress progress = null;
Database msidb = new Database(msi.PathString, DatabaseOpenMode.ReadOnly);
try
{
if (filesToExtract == null || filesToExtract.Length < 1)
{
filesToExtract = MsiFile.CreateMsiFilesFromMSI(msidb);
}
progress = new ExtractionProgress(progressCallback, filesToExtract.Length);
if (!FileSystem.Exists(msi))
{
Trace.WriteLine("File \'" + msi + "\' not found.");
progress.ReportProgress(ExtractionActivity.Complete, string.Empty, filesExtractedSoFar);
return;
}
progress.ReportProgress(ExtractionActivity.Initializing, string.Empty, filesExtractedSoFar);
FileSystem.CreateDirectory(new Path(outputDir));
//map short file names to the msi file entry
var fileEntryMap = new Dictionary <string, MsiFile>(filesToExtract.Length, StringComparer.InvariantCulture);
foreach (MsiFile fileEntry in filesToExtract)
{
MsiFile existingFile = null;
if (fileEntryMap.TryGetValue(fileEntry.File, out existingFile))
{
//NOTE: This used to be triggered when we ignored case of file, but now we don't ignore case so this is unlikely to occur.
// Differing only by case is not compliant with the msi specification but some installers do it (e.g. python, see issue 28).
Debug.Print("!!Found duplicate file using key {0}. The existing key was {1}", fileEntry.File, existingFile.File);
}
else
{
fileEntryMap.Add(fileEntry.File, fileEntry);
}
}
Debug.Assert(fileEntryMap.Count == filesToExtract.Length, "Duplicate files must have caused some files to not be in the map.");
progress.ReportProgress(ExtractionActivity.Uncompressing, string.Empty, filesExtractedSoFar);
List <CabInfo> cabInfos = CabsFromMsiToDisk(msi, msidb, outputDir);
try
{
foreach (CabInfo cab in cabInfos)
{
foreach (CabFileInfo cabFile in cab.GetFiles())
{
var sourcePath = Path.Combine(cabFile.Path, cabFile.Name);
if (fileEntryMap.TryGetValue(sourcePath.PathString, out MsiFile msiFile))
{
Path destPath = Path.Combine(GetTargetDirectory(outputDir, msiFile.Directory.FullPath), msiFile.LongFileName);
Path relativeDestPath = Path.Combine(msiFile.Directory.FullPath, msiFile.LongFileName);
progress.ReportProgress(ExtractionActivity.ExtractingFile, relativeDestPath.PathString, ++filesExtractedSoFar);
cab.UnpackFile(sourcePath.PathString, destPath.PathString);
}
}
}
}
finally
{
foreach (CabInfo cab in cabInfos)
{
DeleteFileForcefully(new Path(cab.FullName));
}
}
}
finally
{
if (msidb != null)
{
msidb.Close();
}
if (progress != null)
{
progress.ReportProgress(ExtractionActivity.Complete, "", filesExtractedSoFar);
}
}
}
