| public static CookedFilename ( string fileName, string extensionName, bool trusted = false ) : string | ||
| fileName | string | Filename to maybe change. Can be full path or just the filename. |
| extensionName | string | Extension to add if there is none already. |
| trusted | bool | True if the filename is internally generated (and therefore allowed to /// have paths in it). False if the filename is from a user-land string (and therefore allowing /// a name that walks the directory tree is a security hole.) |
| return | string | |
/// <summary>
/// Get the file from the OS.
/// </summary>
/// <param name="name">filename to look for</param>
/// <param name="ksmDefault">if true, it prefers to use the KSM filename over the KS. The default is to prefer KS.</param>
/// <returns>the full fileinfo of the filename if found</returns>
private System.IO.FileInfo FileSearch(string name, bool ksmDefault = false)
{
var path = ArchiveFolder + name;
if (Path.HasExtension(path))
{
return(File.Exists(path) ? new System.IO.FileInfo(path) : null);
}
var kerboscriptFile = new System.IO.FileInfo(PersistenceUtilities.CookedFilename(path, KERBOSCRIPT_EXTENSION, true));
var kosMlFile = new System.IO.FileInfo(PersistenceUtilities.CookedFilename(path, KOS_MACHINELANGUAGE_EXTENSION, true));
if (kerboscriptFile.Exists && kosMlFile.Exists)
{
return(ksmDefault ? kosMlFile : kerboscriptFile);
}
if (kerboscriptFile.Exists)
{
return(kerboscriptFile);
}
if (kosMlFile.Exists)
{
return(kosMlFile);
}
return(null);
}
/// <summary>
/// Get the file from the OS.
/// </summary>
/// <param name="name">filename to look for</param>
/// <param name="ksmDefault">if true, it prefers to use the KSM filename over the KS. The default is to prefer KS.</param>
/// <returns>the full fileinfo of the filename if found</returns>
private FileInfo FileSearch(string name, bool ksmDefault = false)
{
var path = Path.Combine(ArchiveFolder, name);
if (File.Exists(path))
{
return(new FileInfo(path));
}
var kerboscriptFile = new FileInfo(PersistenceUtilities.CookedFilename(path, KERBOSCRIPT_EXTENSION, true));
var kosMlFile = new FileInfo(PersistenceUtilities.CookedFilename(path, KOS_MACHINELANGUAGE_EXTENSION, true));
if (kerboscriptFile.Exists && kosMlFile.Exists)
{
return(ksmDefault ? kosMlFile : kerboscriptFile);
}
if (kerboscriptFile.Exists)
{
return(kerboscriptFile);
}
if (kosMlFile.Exists)
{
return(kosMlFile);
}
return(null);
}
private ProgramFile FileSearch(string name, bool ksmDefault = false)
{
SafeHouse.Logger.SuperVerbose("Volume: FileSearch: " + files.Count);
var kerboscriptFilename = PersistenceUtilities.CookedFilename(name, KERBOSCRIPT_EXTENSION, true);
var kosMlFilename = PersistenceUtilities.CookedFilename(name, KOS_MACHINELANGUAGE_EXTENSION, true);
ProgramFile kerboscriptFile;
ProgramFile kosMlFile;
bool kerboscriptFileExists = files.TryGetValue(kerboscriptFilename, out kerboscriptFile);
bool kosMlFileExists = files.TryGetValue(kosMlFilename, out kosMlFile);
if (kerboscriptFileExists && kosMlFileExists)
{
return(ksmDefault ? kosMlFile : kerboscriptFile);
}
if (kerboscriptFile != null)
{
return(kerboscriptFile);
}
if (kosMlFile != null)
{
return(kosMlFile);
}
return(null);
}
/// <summary>
/// Get the file from the OS.
/// </summary>
/// <param name="name">filename to look for</param>
/// <param name="ksmDefault">if true, it prefers to use the KSM filename over the KS. The default is to prefer KS.</param>
/// <returns>the full fileinfo of the filename if found</returns>
private FileSystemInfo Search(VolumePath volumePath, bool ksmDefault)
{
var path = GetArchivePath(volumePath);
if (Directory.Exists(path))
{
return(new DirectoryInfo(path));
}
if (File.Exists(path))
{
return(new FileInfo(path));
}
var kerboscriptFile = new FileInfo(PersistenceUtilities.CookedFilename(path, KERBOSCRIPT_EXTENSION, true));
var kosMlFile = new FileInfo(PersistenceUtilities.CookedFilename(path, KOS_MACHINELANGUAGE_EXTENSION, true));
if (kerboscriptFile.Exists && kosMlFile.Exists)
{
return(ksmDefault ? kosMlFile : kerboscriptFile);
}
if (kerboscriptFile.Exists)
{
return(kerboscriptFile);
}
if (kosMlFile.Exists)
{
return(kosMlFile);
}
return(null);
}
private VolumeItem Search(string name, bool ksmDefault = false)
{
object item = items.ContainsKey(name) ? items[name] : null;
if (item is FileContent)
{
return(new HarddiskFile(this, name));
}
else if (item is HarddiskDirectory)
{
return(item as HarddiskDirectory);
}
else
{
var kerboscriptFilename = PersistenceUtilities.CookedFilename(name, Volume.KERBOSCRIPT_EXTENSION, true);
var kosMlFilename = PersistenceUtilities.CookedFilename(name, Volume.KOS_MACHINELANGUAGE_EXTENSION, true);
bool kerboscriptFileExists = items.ContainsKey(kerboscriptFilename) && items[kerboscriptFilename] is FileContent;
bool kosMlFileExists = items.ContainsKey(kosMlFilename) && items[kosMlFilename] is FileContent;
if (kerboscriptFileExists && kosMlFileExists)
{
return(ksmDefault ? new HarddiskFile(this, kosMlFilename) : new HarddiskFile(this, kerboscriptFilename));
}
if (kerboscriptFileExists)
{
return(new HarddiskFile(this, kerboscriptFilename));
}
if (kosMlFileExists)
{
return(new HarddiskFile(this, kosMlFilename));
}
}
return(null);
}
private VolumeFile FileSearch(string name, bool ksmDefault = false)
{
if (files.ContainsKey(name))
{
return(new HarddiskFile(this, name));
}
else
{
var kerboscriptFilename = PersistenceUtilities.CookedFilename(name, KERBOSCRIPT_EXTENSION, true);
var kosMlFilename = PersistenceUtilities.CookedFilename(name, KOS_MACHINELANGUAGE_EXTENSION, true);
bool kerboscriptFileExists = files.ContainsKey(kerboscriptFilename);
bool kosMlFileExists = files.ContainsKey(kosMlFilename);
if (kerboscriptFileExists && kosMlFileExists)
{
if (ksmDefault)
{
return(new HarddiskFile(this, kosMlFilename));
}
else
{
return(new HarddiskFile(this, kerboscriptFilename));
}
}
if (kerboscriptFileExists)
{
return(new HarddiskFile(this, kerboscriptFilename));
}
if (kosMlFileExists)
{
return(new HarddiskFile(this, kosMlFilename));
}
}
return(null);
}
public override void AppendToFile(string name, byte[] bytesToAppend)
{
SafeHouse.Logger.SuperVerbose("Archive: AppendToFile: " + name);
System.IO.FileInfo info = FileSearch(name);
string fullPath = info == null?string.Format("{0}{1}", ArchiveFolder, PersistenceUtilities.CookedFilename(name, KERBOSCRIPT_EXTENSION, true)) : info.FullName;
// Deliberately not catching potential I/O exceptions from this, so they will percolate upward and be seen by the user:
using (var outfile = new BinaryWriter(File.Open(fullPath, FileMode.Append, FileAccess.Write, FileShare.ReadWrite)))
{
outfile.Write(bytesToAppend);
}
}
public override bool SaveFile(ProgramFile file)
{
base.SaveFile(file);
Directory.CreateDirectory(ArchiveFolder);
try
{
SafeHouse.Logger.Log("Archive: Saving File Name: " + file.Filename);
byte[] fileBody;
string fileExtension;
switch (file.Category)
{
case FileCategory.OTHER:
case FileCategory.TOOSHORT:
case FileCategory.ASCII:
case FileCategory.KERBOSCRIPT:
string tempString = file.StringContent;
if (SafeHouse.IsWindows)
{
// Only evil windows gets evil windows line breaks, and only if this is some sort of ASCII:
tempString = tempString.Replace("\n", "\r\n");
}
fileBody = System.Text.Encoding.UTF8.GetBytes(tempString.ToCharArray());
fileExtension = KERBOSCRIPT_EXTENSION;
break;
case FileCategory.KSM:
fileBody = file.BinaryContent;
fileExtension = KOS_MACHINELANGUAGE_EXTENSION;
break;
default:
throw new ArgumentOutOfRangeException();
}
var fileName = string.Format("{0}{1}", ArchiveFolder, PersistenceUtilities.CookedFilename(file.Filename, fileExtension, true));
using (var outfile = new BinaryWriter(File.Open(fileName, FileMode.Create)))
{
outfile.Write(fileBody);
}
}
catch (Exception e)
{
SafeHouse.Logger.Log(e);
return(false);
}
return(true);
}
public override void AppendToFile(string name, string textToAppend)
{
SafeHouse.Logger.SuperVerbose("Archive: AppendToFile: " + name);
System.IO.FileInfo info = FileSearch(name);
string fullPath = info == null?string.Format("{0}{1}", ArchiveFolder, PersistenceUtilities.CookedFilename(name, KERBOSCRIPT_EXTENSION, true)) : info.FullName;
// Using binary writer so we can bypass the OS behavior about ASCII end-of-lines and always use \n's no matter the OS:
// Deliberately not catching potential I/O exceptions from this, so they will percolate upward and be seen by the user:
using (var outfile = new BinaryWriter(File.Open(fullPath, FileMode.Append, FileAccess.Write, FileShare.ReadWrite)))
{
byte[] binaryLine = System.Text.Encoding.UTF8.GetBytes((textToAppend + "\n").ToCharArray());
outfile.Write(binaryLine);
}
}