mirror of
https://github.com/jellyfin/jellyfin.git
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641 lines
No EOL
20 KiB
C#
641 lines
No EOL
20 KiB
C#
using System;
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using System.IO;
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using System.Collections;
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using System.Runtime.InteropServices;
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namespace MediaBrowser.ServerApplication.Networking
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{
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/// <summary>
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/// Type of share
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/// </summary>
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[Flags]
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public enum ShareType
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{
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/// <summary>Disk share</summary>
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Disk = 0,
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/// <summary>Printer share</summary>
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Printer = 1,
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/// <summary>Device share</summary>
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Device = 2,
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/// <summary>IPC share</summary>
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IPC = 3,
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/// <summary>Special share</summary>
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Special = -2147483648, // 0x80000000,
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}
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#region Share
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/// <summary>
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/// Information about a local share
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/// </summary>
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public class Share
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{
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#region Private data
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private string _server;
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private string _netName;
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private string _path;
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private ShareType _shareType;
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private string _remark;
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#endregion
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#region Constructor
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/// <summary>
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/// Constructor
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/// </summary>
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/// <param name="server">The server.</param>
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/// <param name="netName">Name of the net.</param>
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/// <param name="path">The path.</param>
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/// <param name="shareType">Type of the share.</param>
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/// <param name="remark">The remark.</param>
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public Share(string server, string netName, string path, ShareType shareType, string remark)
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{
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if (ShareType.Special == shareType && "IPC$" == netName)
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{
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shareType |= ShareType.IPC;
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}
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_server = server;
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_netName = netName;
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_path = path;
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_shareType = shareType;
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_remark = remark;
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}
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#endregion
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#region Properties
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/// <summary>
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/// The name of the computer that this share belongs to
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/// </summary>
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public string Server
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{
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get { return _server; }
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}
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/// <summary>
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/// Share name
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/// </summary>
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public string NetName
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{
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get { return _netName; }
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}
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/// <summary>
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/// Local path
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/// </summary>
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public string Path
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{
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get { return _path; }
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}
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/// <summary>
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/// Share type
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/// </summary>
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public ShareType ShareType
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{
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get { return _shareType; }
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}
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/// <summary>
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/// Comment
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/// </summary>
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public string Remark
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{
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get { return _remark; }
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}
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/// <summary>
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/// Returns true if this is a file system share
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/// </summary>
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public bool IsFileSystem
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{
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get
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{
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// Shared device
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if (0 != (_shareType & ShareType.Device)) return false;
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// IPC share
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if (0 != (_shareType & ShareType.IPC)) return false;
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// Shared printer
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if (0 != (_shareType & ShareType.Printer)) return false;
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// Standard disk share
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if (0 == (_shareType & ShareType.Special)) return true;
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// Special disk share (e.g. C$)
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return ShareType.Special == _shareType && !string.IsNullOrEmpty(_netName);
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}
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}
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/// <summary>
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/// Get the root of a disk-based share
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/// </summary>
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public DirectoryInfo Root
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{
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get
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{
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if (IsFileSystem)
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{
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if (string.IsNullOrEmpty(_server))
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if (string.IsNullOrEmpty(_path))
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return new DirectoryInfo(ToString());
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else
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return new DirectoryInfo(_path);
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return new DirectoryInfo(ToString());
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}
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return null;
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}
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}
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#endregion
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/// <summary>
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/// Returns the path to this share
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/// </summary>
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/// <returns></returns>
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public override string ToString()
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{
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if (string.IsNullOrEmpty(_server))
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{
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return string.Format(@"\\{0}\{1}", Environment.MachineName, _netName);
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}
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return string.Format(@"\\{0}\{1}", _server, _netName);
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}
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/// <summary>
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/// Returns true if this share matches the local path
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/// </summary>
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/// <param name="path"></param>
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/// <returns></returns>
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public bool MatchesPath(string path)
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{
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if (!IsFileSystem) return false;
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if (string.IsNullOrEmpty(path)) return true;
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return path.ToLower().StartsWith(_path.ToLower());
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}
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}
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#endregion
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/// <summary>
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/// A collection of shares
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/// </summary>
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public class ShareCollection : ReadOnlyCollectionBase
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{
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#region Platform
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/// <summary>
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/// Is this an NT platform?
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/// </summary>
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protected static bool IsNT
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{
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get { return (PlatformID.Win32NT == Environment.OSVersion.Platform); }
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}
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/// <summary>
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/// Returns true if this is Windows 2000 or higher
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/// </summary>
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protected static bool IsW2KUp
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{
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get
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{
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OperatingSystem os = Environment.OSVersion;
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if (PlatformID.Win32NT == os.Platform && os.Version.Major >= 5)
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return true;
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else
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return false;
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}
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}
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#endregion
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#region Interop
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#region Constants
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/// <summary>Maximum path length</summary>
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protected const int MAX_PATH = 260;
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/// <summary>No error</summary>
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protected const int NO_ERROR = 0;
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/// <summary>Access denied</summary>
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protected const int ERROR_ACCESS_DENIED = 5;
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/// <summary>Access denied</summary>
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protected const int ERROR_WRONG_LEVEL = 124;
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/// <summary>More data available</summary>
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protected const int ERROR_MORE_DATA = 234;
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/// <summary>Not connected</summary>
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protected const int ERROR_NOT_CONNECTED = 2250;
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/// <summary>Level 1</summary>
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protected const int UNIVERSAL_NAME_INFO_LEVEL = 1;
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/// <summary>Max extries (9x)</summary>
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protected const int MAX_SI50_ENTRIES = 20;
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#endregion
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#region Structures
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/// <summary>Unc name</summary>
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[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
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protected struct UNIVERSAL_NAME_INFO
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{
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[MarshalAs(UnmanagedType.LPTStr)]
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public string lpUniversalName;
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}
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/// <summary>Share information, NT, level 2</summary>
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/// <remarks>
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/// Requires admin rights to work.
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/// </remarks>
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[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
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protected struct SHARE_INFO_2
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{
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[MarshalAs(UnmanagedType.LPWStr)]
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public string NetName;
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public ShareType ShareType;
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[MarshalAs(UnmanagedType.LPWStr)]
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public string Remark;
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public int Permissions;
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public int MaxUsers;
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public int CurrentUsers;
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[MarshalAs(UnmanagedType.LPWStr)]
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public string Path;
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[MarshalAs(UnmanagedType.LPWStr)]
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public string Password;
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}
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/// <summary>Share information, NT, level 1</summary>
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/// <remarks>
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/// Fallback when no admin rights.
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/// </remarks>
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[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
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protected struct SHARE_INFO_1
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{
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[MarshalAs(UnmanagedType.LPWStr)]
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public string NetName;
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public ShareType ShareType;
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[MarshalAs(UnmanagedType.LPWStr)]
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public string Remark;
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}
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/// <summary>Share information, Win9x</summary>
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[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi, Pack = 1)]
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protected struct SHARE_INFO_50
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{
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 13)]
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public string NetName;
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public byte bShareType;
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public ushort Flags;
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[MarshalAs(UnmanagedType.LPTStr)]
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public string Remark;
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[MarshalAs(UnmanagedType.LPTStr)]
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public string Path;
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 9)]
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public string PasswordRW;
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 9)]
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public string PasswordRO;
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public ShareType ShareType
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{
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get { return (ShareType)((int)bShareType & 0x7F); }
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}
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}
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/// <summary>Share information level 1, Win9x</summary>
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[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi, Pack = 1)]
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protected struct SHARE_INFO_1_9x
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{
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 13)]
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public string NetName;
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public byte Padding;
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public ushort bShareType;
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[MarshalAs(UnmanagedType.LPTStr)]
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public string Remark;
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public ShareType ShareType
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{
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get { return (ShareType)((int)bShareType & 0x7FFF); }
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}
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}
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#endregion
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#region Functions
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/// <summary>Get a UNC name</summary>
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[DllImport("mpr", CharSet = CharSet.Auto)]
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protected static extern int WNetGetUniversalName(string lpLocalPath,
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int dwInfoLevel, ref UNIVERSAL_NAME_INFO lpBuffer, ref int lpBufferSize);
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/// <summary>Get a UNC name</summary>
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[DllImport("mpr", CharSet = CharSet.Auto)]
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protected static extern int WNetGetUniversalName(string lpLocalPath,
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int dwInfoLevel, IntPtr lpBuffer, ref int lpBufferSize);
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/// <summary>Enumerate shares (NT)</summary>
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[DllImport("netapi32", CharSet = CharSet.Unicode)]
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protected static extern int NetShareEnum(string lpServerName, int dwLevel,
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out IntPtr lpBuffer, int dwPrefMaxLen, out int entriesRead,
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out int totalEntries, ref int hResume);
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/// <summary>Enumerate shares (9x)</summary>
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[DllImport("svrapi", CharSet = CharSet.Ansi)]
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protected static extern int NetShareEnum(
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[MarshalAs(UnmanagedType.LPTStr)] string lpServerName, int dwLevel,
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IntPtr lpBuffer, ushort cbBuffer, out ushort entriesRead,
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out ushort totalEntries);
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/// <summary>Free the buffer (NT)</summary>
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[DllImport("netapi32")]
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protected static extern int NetApiBufferFree(IntPtr lpBuffer);
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#endregion
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#region Enumerate shares
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/// <summary>
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/// Enumerates the shares on Windows NT
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/// </summary>
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/// <param name="server">The server name</param>
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/// <param name="shares">The ShareCollection</param>
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protected static void EnumerateSharesNT(string server, ShareCollection shares)
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{
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int level = 2;
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int entriesRead, totalEntries, nRet, hResume = 0;
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IntPtr pBuffer = IntPtr.Zero;
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try
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{
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nRet = NetShareEnum(server, level, out pBuffer, -1,
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out entriesRead, out totalEntries, ref hResume);
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if (ERROR_ACCESS_DENIED == nRet)
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{
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//Need admin for level 2, drop to level 1
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level = 1;
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nRet = NetShareEnum(server, level, out pBuffer, -1,
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out entriesRead, out totalEntries, ref hResume);
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}
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if (NO_ERROR == nRet && entriesRead > 0)
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{
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Type t = (2 == level) ? typeof(SHARE_INFO_2) : typeof(SHARE_INFO_1);
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int offset = Marshal.SizeOf(t);
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for (int i = 0, lpItem = pBuffer.ToInt32(); i < entriesRead; i++, lpItem += offset)
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{
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IntPtr pItem = new IntPtr(lpItem);
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if (1 == level)
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{
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SHARE_INFO_1 si = (SHARE_INFO_1)Marshal.PtrToStructure(pItem, t);
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shares.Add(si.NetName, string.Empty, si.ShareType, si.Remark);
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}
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else
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{
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SHARE_INFO_2 si = (SHARE_INFO_2)Marshal.PtrToStructure(pItem, t);
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shares.Add(si.NetName, si.Path, si.ShareType, si.Remark);
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}
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}
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}
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}
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finally
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{
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// Clean up buffer allocated by system
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if (IntPtr.Zero != pBuffer)
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NetApiBufferFree(pBuffer);
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}
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}
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/// <summary>
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/// Enumerates the shares on Windows 9x
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/// </summary>
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/// <param name="server">The server name</param>
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/// <param name="shares">The ShareCollection</param>
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protected static void EnumerateShares9x(string server, ShareCollection shares)
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{
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int level = 50;
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int nRet = 0;
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ushort entriesRead, totalEntries;
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var t = typeof(SHARE_INFO_50);
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var size = Marshal.SizeOf(t);
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var cbBuffer = (ushort)(MAX_SI50_ENTRIES * size);
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//On Win9x, must allocate buffer before calling API
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IntPtr pBuffer = Marshal.AllocHGlobal(cbBuffer);
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try
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{
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nRet = NetShareEnum(server, level, pBuffer, cbBuffer,
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out entriesRead, out totalEntries);
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if (ERROR_WRONG_LEVEL == nRet)
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{
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level = 1;
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t = typeof(SHARE_INFO_1_9x);
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size = Marshal.SizeOf(t);
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nRet = NetShareEnum(server, level, pBuffer, cbBuffer,
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out entriesRead, out totalEntries);
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}
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if (NO_ERROR == nRet || ERROR_MORE_DATA == nRet)
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{
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for (int i = 0, lpItem = pBuffer.ToInt32(); i < entriesRead; i++, lpItem += size)
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{
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var pItem = new IntPtr(lpItem);
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if (1 == level)
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{
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var si = (SHARE_INFO_1_9x)Marshal.PtrToStructure(pItem, t);
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shares.Add(si.NetName, string.Empty, si.ShareType, si.Remark);
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}
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else
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{
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var si = (SHARE_INFO_50)Marshal.PtrToStructure(pItem, t);
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shares.Add(si.NetName, si.Path, si.ShareType, si.Remark);
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}
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}
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}
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else
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Console.WriteLine(nRet);
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}
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finally
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{
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//Clean up buffer
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Marshal.FreeHGlobal(pBuffer);
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}
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}
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/// <summary>
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/// Enumerates the shares
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/// </summary>
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/// <param name="server">The server name</param>
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/// <param name="shares">The ShareCollection</param>
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protected static void EnumerateShares(string server, ShareCollection shares)
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{
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if (null != server && 0 != server.Length && !IsW2KUp)
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{
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server = server.ToUpper();
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// On NT4, 9x and Me, server has to start with "\\"
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if (!('\\' == server[0] && '\\' == server[1]))
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server = @"\\" + server;
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}
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if (IsNT)
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EnumerateSharesNT(server, shares);
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else
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EnumerateShares9x(server, shares);
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}
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#endregion
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#endregion
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#region Static methods
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/// <summary>
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/// Returns true if fileName is a valid local file-name of the form:
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/// X:\, where X is a drive letter from A-Z
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/// </summary>
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/// <param name="fileName">The filename to check</param>
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/// <returns></returns>
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public static bool IsValidFilePath(string fileName)
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{
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if (null == fileName || 0 == fileName.Length) return false;
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char drive = char.ToUpper(fileName[0]);
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if ('A' > drive || drive > 'Z')
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return false;
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else if (Path.VolumeSeparatorChar != fileName[1])
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return false;
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else if (Path.DirectorySeparatorChar != fileName[2])
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return false;
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else
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return true;
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}
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#endregion
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/// <summary>The name of the server this collection represents</summary>
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private string _server;
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#region Constructor
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/// <summary>
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/// Default constructor - local machine
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/// </summary>
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public ShareCollection()
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{
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_server = string.Empty;
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EnumerateShares(_server, this);
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}
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/// <summary>
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/// Constructor
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/// </summary>
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/// <param name="server">The server.</param>
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public ShareCollection(string server)
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{
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_server = server;
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EnumerateShares(_server, this);
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}
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#endregion
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#region Add
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protected void Add(Share share)
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{
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InnerList.Add(share);
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}
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protected void Add(string netName, string path, ShareType shareType, string remark)
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{
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InnerList.Add(new Share(_server, netName, path, shareType, remark));
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}
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#endregion
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#region Properties
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/// <summary>
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/// Returns the name of the server this collection represents
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/// </summary>
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public string Server
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{
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get { return _server; }
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}
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/// <summary>
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/// Returns the <see cref="Share"/> at the specified index.
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/// </summary>
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public Share this[int index]
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{
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get { return (Share)InnerList[index]; }
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}
|
|
|
|
/// <summary>
|
|
/// Returns the <see cref="Share"/> which matches a given local path
|
|
/// </summary>
|
|
/// <param name="path">The path to match</param>
|
|
public Share this[string path]
|
|
{
|
|
get
|
|
{
|
|
if (null == path || 0 == path.Length) return null;
|
|
|
|
path = Path.GetFullPath(path);
|
|
if (!IsValidFilePath(path)) return null;
|
|
|
|
Share match = null;
|
|
|
|
foreach (object t in InnerList)
|
|
{
|
|
var s = (Share)t;
|
|
|
|
if (s.IsFileSystem && s.MatchesPath(path))
|
|
{
|
|
//Store first match
|
|
if (null == match)
|
|
match = s;
|
|
|
|
// If this has a longer path,
|
|
// and this is a disk share or match is a special share,
|
|
// then this is a better match
|
|
else if (match.Path.Length < s.Path.Length)
|
|
{
|
|
if (ShareType.Disk == s.ShareType || ShareType.Disk != match.ShareType)
|
|
match = s;
|
|
}
|
|
}
|
|
}
|
|
|
|
return match;
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
|
|
/// <summary>
|
|
/// Copy this collection to an array
|
|
/// </summary>
|
|
/// <param name="array"></param>
|
|
/// <param name="index"></param>
|
|
public void CopyTo(Share[] array, int index)
|
|
{
|
|
InnerList.CopyTo(array, index);
|
|
}
|
|
}
|
|
} |