public static bool IsPkg(string pkgFilePath)
{
try
{
PkgHeader header = new PkgHeader(pkgFilePath);
return(header.IsValid());
} catch (Exception ex)
{
// If an exception is received, assume that the header could not be parsed successfully
return(false);
}
}
/// <summary>
/// Whether the given path is a valid .pkg file.
/// </summary>
/// <param name="pkgFilePath">path to the .pkg file to validate.</param>
/// <returns>true if value, false otherwise.</returns>
public static bool IsPkg(string pkgFilePath)
{
try
{
PkgHeader header = new PkgHeader(pkgFilePath);
return(header.IsValid());
}
catch (Exception ex)
{
// If an exception is received, assume that the header could not be parsed successfully
Console.WriteLine("Could not parse pkg header, this is likely not a pkg: {0}", ex.Message);
return(false);
}
}
public PkgFile(string pkgFilePath, bool verbose = false)
{
Console.WriteLine("Extracting PKG file...");
this.verbose = verbose;
contentFiles = new List <PkgContentFile>();
path = pkgFilePath;
try
{
header = new PkgHeader(path);
}
catch (Exception ex)
{
Console.WriteLine("Could not successfully read PKG file: " + ex.Message);
return;
}
if (verbose)
{
Console.WriteLine("Successfully read PKG file header as:\n{0}", header.ToString());
}
// Detect each file within the PKG file after the header and store it in memory as a PkgContentFile, start after the header
using (FileStream fs = new FileStream(pkgFilePath, FileMode.Open, FileAccess.Read))
{
// Skip header
fs.Seek(header.Length, SeekOrigin.Begin);
using (BinaryReader br = new BinaryReader(fs, new ASCIIEncoding()))
{
while (br.BaseStream.Position < br.BaseStream.Length)
{
// Read in each section, these are arranged as a LE UINT32 describing the size followed by a null-terminated filename and its content
int sectionLength = br.ReadInt32LE();
string sectionPath = br.ReadNullTerminatedString();
byte[] sectionContent = br.ReadBytes(sectionLength);
contentFiles.Add(new PkgContentFile(sectionPath, sectionContent));
}
}
}
}
