// Constructor
public PK3Reader(DataLocation dl, bool asreadonly) : base(dl, asreadonly)
{
General.WriteLogLine("Opening " + Path.GetExtension(location.location).ToUpper().Replace(".", "") + " resource \"" + location.location + "\"");
if (!File.Exists(location.location))
{
throw new FileNotFoundException("Could not find the file \"" + location.location + "\"", location.location);
}
// Make list of all files
List <DirectoryFileEntry> fileentries = new List <DirectoryFileEntry>();
// Create archive
archive = ArchiveFactory.Open(location.location, Options.KeepStreamsOpen);
archivetype = archive.Type;
// Random access of 7z archives works TERRIBLY slow in SharpCompress
if (archivetype == ArchiveType.SevenZip)
{
isreadonly = true; // Unsaveable...
sevenzipentries = new Dictionary <string, byte[]>(StringComparer.Ordinal);
IReader reader = archive.ExtractAllEntries();
while (reader.MoveToNextEntry())
{
if (reader.Entry.IsDirectory || !CheckInvalidPathChars(reader.Entry.Key))
{
continue;
}
MemoryStream s = new MemoryStream();
reader.WriteEntryTo(s);
sevenzipentries.Add(reader.Entry.Key.ToLowerInvariant(), s.ToArray());
fileentries.Add(new DirectoryFileEntry(reader.Entry.Key));
}
}
else
{
foreach (IArchiveEntry entry in archive.Entries)
{
if (!entry.IsDirectory && CheckInvalidPathChars(entry.Key))
{
fileentries.Add(new DirectoryFileEntry(entry.Key));
}
}
}
// Get rid of archive
archive.Dispose();
archive = null;
// Make files list
files = new DirectoryFilesList(dl.GetDisplayName(), fileentries);
// Initialize without path (because we use paths relative to the PK3 file)
Initialize();
// We have no destructor
GC.SuppressFinalize(this);
}
private void LoadFrom(DataLocation dl, bool asreadonly)
{
FileAccess access;
FileShare share;
isreadonly = asreadonly;
// Determine if opening for read only
if (isreadonly)
{
// Read only
access = FileAccess.Read;
share = FileShare.ReadWrite;
}
else
{
// Private access
access = FileAccess.ReadWrite;
share = FileShare.Read;
}
General.WriteLogLine("Opening " + Path.GetExtension(location.location).ToUpper().Replace(".", "") + " resource \"" + location.location + "\"");
if (!File.Exists(location.location))
throw new FileNotFoundException("Could not find the file \"" + location.location + "\"", location.location);
// Make list of all files
List<DirectoryFileEntry> fileentries = new List<DirectoryFileEntry>();
// Take the detour with a FileStream because SharpCompress doesn't directly support opening files as read-only
filestream = File.Open(location.location, FileMode.OpenOrCreate, access, share);
// Create archive
archive = ArchiveFactory.Open(filestream);
archivetype = archive.Type;
// Random access of 7z archives works TERRIBLY slow in SharpCompress
if (archivetype == ArchiveType.SevenZip)
{
isreadonly = true; // Unsaveable...
sevenzipentries = new Dictionary<string, byte[]>(StringComparer.Ordinal);
IReader reader = archive.ExtractAllEntries();
while (reader.MoveToNextEntry())
{
if (reader.Entry.IsDirectory || !CheckInvalidPathChars(reader.Entry.Key)) continue;
MemoryStream s = new MemoryStream();
reader.WriteEntryTo(s);
sevenzipentries.Add(reader.Entry.Key.ToLowerInvariant(), s.ToArray());
fileentries.Add(new DirectoryFileEntry(reader.Entry.Key));
}
}
else
{
foreach (IArchiveEntry entry in archive.Entries)
{
if (!entry.IsDirectory && CheckInvalidPathChars(entry.Key))
fileentries.Add(new DirectoryFileEntry(entry.Key));
}
}
// Get rid of archive
archive.Dispose();
archive = null;
filestream.Dispose();
filestream = null;
// Make files list
files = new DirectoryFilesList(dl.GetDisplayName(), fileentries);
// Initialize without path (because we use paths relative to the PK3 file)
Initialize();
// We have no destructor
GC.SuppressFinalize(this);
}
