119 lines
3.4 KiB
C#
119 lines
3.4 KiB
C#
using System;
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namespace UniversalEditor.UserInterface
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{
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public class TemporaryFileManager
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{
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private static Random rand = new Random();
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private static System.Collections.Specialized.StringCollection mvarTemporaryFileNames = new System.Collections.Specialized.StringCollection();
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private static string mvarTemporaryFilePath = null;
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private static string SanitizeFileName(string FileName)
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{
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if (String.IsNullOrEmpty(FileName)) return "_";
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string[] invalidCharacters = new string[]
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{
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"\\", "/", ":", "*", "\"", "<", ">", "?", "|"
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};
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foreach (string invalidCharacter in invalidCharacters)
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{
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FileName = FileName.Replace(invalidCharacter, "_");
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}
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// Check twice because we might have encountered a filename consisting solely of invalid chars (weird, but possible)
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if (String.IsNullOrEmpty(FileName)) return "_";
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return FileName;
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}
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public static string CreateTemporaryFile(string FileName, byte[] FileData = null)
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{
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if (mvarTemporaryFilePath == null) throw new InvalidOperationException();
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if (!System.IO.Directory.Exists(mvarTemporaryFilePath))
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{
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System.IO.Directory.CreateDirectory(mvarTemporaryFilePath);
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}
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FileName = SanitizeFileName(FileName);
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FileName = System.IO.Path.GetFileName(FileName);
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string filePath = mvarTemporaryFilePath + System.IO.Path.DirectorySeparatorChar.ToString() + FileName;
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if (FileData != null) System.IO.File.WriteAllBytes(filePath, FileData);
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mvarTemporaryFileNames.Add(filePath);
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return filePath;
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}
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public static bool RegisterTemporaryDirectory()
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{
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while (true)
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{
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string pathName = System.IO.Path.GetRandomFileName();
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string path = System.IO.Path.Combine(new string[]
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{
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System.IO.Path.GetTempPath(),
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"universal-editor",
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pathName
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});
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if (!System.IO.Directory.Exists(path))
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{
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System.IO.Directory.CreateDirectory(path);
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mvarTemporaryFilePath = path;
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return true;
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}
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}
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}
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public static bool RegisterTemporaryDirectory(string prefix, int maxNameLength)
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{
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if (mvarTemporaryFilePath != null)
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{
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return false;
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}
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string name = String.Empty;
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do
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{
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name = prefix + rand.Next(0, (maxNameLength * 10) - 1).ToString().PadLeft(maxNameLength - prefix.Length, '0');
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}
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while (System.IO.Directory.Exists(name));
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string pathName = System.IO.Path.GetTempPath() + System.IO.Path.DirectorySeparatorChar.ToString() + name;
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System.IO.Directory.CreateDirectory(pathName);
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mvarTemporaryFilePath = pathName;
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return true;
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}
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public static bool UnregisterTemporaryDirectory()
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{
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if (mvarTemporaryFilePath == null) return false;
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System.Collections.Generic.List<string> fileNamesNotDeleted = new System.Collections.Generic.List<string>();
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foreach (string fileName in mvarTemporaryFileNames)
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{
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if (System.IO.File.Exists(fileName))
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{
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try
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{
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System.IO.File.Delete(fileName);
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}
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catch (Exception ex)
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{
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fileNamesNotDeleted.Add(fileName);
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}
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}
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}
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if (System.IO.Directory.Exists(mvarTemporaryFilePath) && fileNamesNotDeleted.Count == 0)
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{
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System.IO.Directory.Delete(mvarTemporaryFilePath, true);
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}
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string uetmppath = System.IO.Path.Combine(new string[] { System.IO.Path.GetTempPath(), "universal-editor" });
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if (System.IO.Directory.Exists(uetmppath) && System.IO.Directory.GetFileSystemEntries(uetmppath).Length == 0)
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{
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System.IO.Directory.Delete(uetmppath);
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}
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return true;
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}
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}
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} |