mirror of
https://github.com/jellyfin/jellyfin.git
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137 lines
5.4 KiB
C#
137 lines
5.4 KiB
C#
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using MediaBrowser.Common.Implementations.Networking;
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using MediaBrowser.Common.Net;
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using MediaBrowser.Model.Net;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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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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/// Class NetUtils
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/// </summary>
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public class NetworkManager : BaseNetworkManager, INetworkManager
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{
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/// <summary>
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/// Gets the network shares.
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/// </summary>
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/// <param name="path">The path.</param>
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/// <returns>IEnumerable{NetworkShare}.</returns>
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public IEnumerable<NetworkShare> GetNetworkShares(string path)
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{
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return new ShareCollection(path).OfType<Share>().Select(ToNetworkShare);
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}
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/// <summary>
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/// To the network share.
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/// </summary>
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/// <param name="share">The share.</param>
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/// <returns>NetworkShare.</returns>
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private NetworkShare ToNetworkShare(Share share)
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{
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return new NetworkShare
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{
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Name = share.NetName,
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Path = share.Path,
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Remark = share.Remark,
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Server = share.Server,
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ShareType = ToNetworkShareType(share.ShareType)
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};
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}
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/// <summary>
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/// To the type of the network share.
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/// </summary>
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/// <param name="shareType">Type of the share.</param>
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/// <returns>NetworkShareType.</returns>
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/// <exception cref="System.ArgumentException">Unknown share type</exception>
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private NetworkShareType ToNetworkShareType(ShareType shareType)
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{
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if (shareType.HasFlag(ShareType.Special))
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{
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return NetworkShareType.Special;
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}
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if (shareType.HasFlag(ShareType.Device))
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{
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return NetworkShareType.Device;
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}
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if (shareType.HasFlag(ShareType.Disk))
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{
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return NetworkShareType.Disk;
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}
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if (shareType.HasFlag(ShareType.IPC))
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{
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return NetworkShareType.Ipc;
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}
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if (shareType.HasFlag(ShareType.Printer))
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{
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return NetworkShareType.Printer;
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}
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throw new ArgumentException("Unknown share type");
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}
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/// <summary>
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/// Uses the DllImport : NetServerEnum with all its required parameters
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/// (see http://msdn.microsoft.com/library/default.asp?url=/library/en-us/netmgmt/netmgmt/netserverenum.asp
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/// for full details or method signature) to retrieve a list of domain SV_TYPE_WORKSTATION
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/// and SV_TYPE_SERVER PC's
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/// </summary>
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/// <returns>Arraylist that represents all the SV_TYPE_WORKSTATION and SV_TYPE_SERVER
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/// PC's in the Domain</returns>
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public IEnumerable<string> GetNetworkDevices()
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{
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//local fields
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const int MAX_PREFERRED_LENGTH = -1;
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var SV_TYPE_WORKSTATION = 1;
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var SV_TYPE_SERVER = 2;
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var buffer = IntPtr.Zero;
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var tmpBuffer = IntPtr.Zero;
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var entriesRead = 0;
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var totalEntries = 0;
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var resHandle = 0;
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var sizeofINFO = Marshal.SizeOf(typeof(_SERVER_INFO_100));
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try
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{
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//call the DllImport : NetServerEnum with all its required parameters
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//see http://msdn.microsoft.com/library/default.asp?url=/library/en-us/netmgmt/netmgmt/netserverenum.asp
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//for full details of method signature
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var ret = NativeMethods.NetServerEnum(null, 100, ref buffer, MAX_PREFERRED_LENGTH, out entriesRead, out totalEntries, SV_TYPE_WORKSTATION | SV_TYPE_SERVER, null, out resHandle);
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//if the returned with a NERR_Success (C++ term), =0 for C#
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if (ret == 0)
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{
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//loop through all SV_TYPE_WORKSTATION and SV_TYPE_SERVER PC's
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for (var i = 0; i < totalEntries; i++)
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{
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//get pointer to, Pointer to the buffer that received the data from
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//the call to NetServerEnum. Must ensure to use correct size of
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//STRUCTURE to ensure correct location in memory is pointed to
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tmpBuffer = new IntPtr((int)buffer + (i * sizeofINFO));
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//Have now got a pointer to the list of SV_TYPE_WORKSTATION and
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//SV_TYPE_SERVER PC's, which is unmanaged memory
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//Needs to Marshal data from an unmanaged block of memory to a
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//managed object, again using STRUCTURE to ensure the correct data
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//is marshalled
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var svrInfo = (_SERVER_INFO_100)Marshal.PtrToStructure(tmpBuffer, typeof(_SERVER_INFO_100));
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//add the PC names to the ArrayList
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if (!string.IsNullOrEmpty(svrInfo.sv100_name))
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{
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yield return svrInfo.sv100_name;
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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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//The NetApiBufferFree function frees
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//the memory that the NetApiBufferAllocate function allocates
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NativeMethods.NetApiBufferFree(buffer);
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}
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}
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}
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}
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