75 lines
2.3 KiB
C#
75 lines
2.3 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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namespace Tor.Controller
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{
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/// <summary>
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/// A class containing the command responsible for extending a circuit.
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/// </summary>
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internal class ExtendCircuitCommand : Command<Response>
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{
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private readonly Circuit circuit;
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private readonly List<string> routers;
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/// <summary>
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/// Initializes a new instance of the <see cref="ExtendCircuitCommand"/> class.
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/// </summary>
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/// <param name="circuit">The circuit which should be the target of extension. A <c>null</c> value indicates a new circuit.</param>
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public ExtendCircuitCommand(Circuit circuit)
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{
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this.circuit = circuit;
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this.routers = new List<string>();
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}
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#region Properties
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/// <summary>
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/// Gets a collection containing the list of routers which should be extended onto this circuit.
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/// </summary>
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public List<string> Routers
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{
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get { return routers; }
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}
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#endregion
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#region Tor.Controller.Command<>
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/// <summary>
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/// Dispatches the command to the client control port and produces a <typeparamref name="T" /> response result.
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/// </summary>
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/// <param name="connection">The control connection where the command should be dispatched.</param>
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/// <returns>
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/// A <typeparamref name="T" /> object instance containing the response data.
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/// </returns>
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protected override Response Dispatch(Connection connection)
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{
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if (routers.Count == 0)
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return new Response(false);
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int circuitID = 0;
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if (circuit != null)
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circuitID = circuit.ID;
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StringBuilder builder = new StringBuilder("extendcircuit");
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builder.AppendFormat(" {0}", circuitID);
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foreach (string router in routers)
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builder.AppendFormat(" {0}", router);
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if (connection.Write(builder.ToString()))
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{
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ConnectionResponse response = connection.Read();
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return new Response(response.Success);
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}
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return new Response(false);
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}
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#endregion
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}
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}
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