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