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351 lines
15 KiB
C#
351 lines
15 KiB
C#
/* This file is part of OpenSubtitles Handler
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A library that handle OpenSubtitles.org XML-RPC methods.
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Copyright © Ala Ibrahim Hadid 2013
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using System.Globalization;
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using System.Text;
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using System.Collections.Generic;
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using System.IO;
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using System.Xml;
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using OpenSubtitlesHandler;
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namespace XmlRpcHandler
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{
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/// <summary>
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/// A class for making XML-RPC requests. The requests then can be sent directly as http request.
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/// </summary>
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public class XmlRpcGenerator
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{
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/// <summary>
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/// Generate XML-RPC request using method call.
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/// </summary>
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/// <param name="method">The method call</param>
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/// <returns>The request in xml.</returns>
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public static byte[] Generate(XmlRpcMethodCall method)
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{ return Generate(new XmlRpcMethodCall[] { method }); }
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/// <summary>
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/// Generate XML-RPC request using method calls array.
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/// </summary>
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/// <param name="methods">The method calls array</param>
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/// <returns>The request in utf8 xml string as buffer</returns>
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public static byte[] Generate(XmlRpcMethodCall[] methods)
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{
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if (methods == null)
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throw new Exception("No method to write !");
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if (methods.Length == 0)
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throw new Exception("No method to write !");
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// Create xml
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XmlWriterSettings sett = new XmlWriterSettings();
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sett.Indent = true;
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sett.Encoding = Encoding.UTF8;
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using (var ms = new MemoryStream())
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{
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using (XmlWriter XMLwrt = XmlWriter.Create(ms, sett))
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{
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// Let's write the methods
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foreach (XmlRpcMethodCall method in methods)
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{
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XMLwrt.WriteStartElement("methodCall");//methodCall
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XMLwrt.WriteStartElement("methodName");//methodName
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XMLwrt.WriteString(method.Name);
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XMLwrt.WriteEndElement();//methodName
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XMLwrt.WriteStartElement("params");//params
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// Write values
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foreach (IXmlRpcValue p in method.Parameters)
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{
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XMLwrt.WriteStartElement("param");//param
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if (p is XmlRpcValueBasic)
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{
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WriteBasicValue(XMLwrt, (XmlRpcValueBasic)p);
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}
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else if (p is XmlRpcValueStruct)
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{
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WriteStructValue(XMLwrt, (XmlRpcValueStruct)p);
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}
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else if (p is XmlRpcValueArray)
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{
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WriteArrayValue(XMLwrt, (XmlRpcValueArray)p);
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}
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XMLwrt.WriteEndElement();//param
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}
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XMLwrt.WriteEndElement();//params
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XMLwrt.WriteEndElement();//methodCall
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}
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XMLwrt.Flush();
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return ms.ToArray();
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}
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}
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}
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/// <summary>
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/// Decode response then return the values
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/// </summary>
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/// <param name="xmlResponse">The response xml string as provided by server as methodResponse</param>
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/// <returns></returns>
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public static XmlRpcMethodCall[] DecodeMethodResponse(string xmlResponse)
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{
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List<XmlRpcMethodCall> methods = new List<XmlRpcMethodCall>();
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XmlReaderSettings sett = new XmlReaderSettings();
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sett.DtdProcessing = DtdProcessing.Ignore;
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sett.IgnoreWhitespace = true;
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MemoryStream str;
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if (xmlResponse.Contains(@"encoding=""utf-8"""))
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{
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str = new MemoryStream(Encoding.UTF8.GetBytes(xmlResponse));
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}
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else
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{
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str = new MemoryStream(Utilities.GetASCIIBytes(xmlResponse));
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}
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using (str)
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{
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using (XmlReader XMLread = XmlReader.Create(str, sett))
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{
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XmlRpcMethodCall call = new XmlRpcMethodCall("methodResponse");
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// Read parameters
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while (XMLread.Read())
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{
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if (XMLread.Name == "param" && XMLread.IsStartElement())
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{
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IXmlRpcValue val = ReadValue(XMLread);
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if (val != null)
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call.Parameters.Add(val);
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}
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}
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methods.Add(call);
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return methods.ToArray();
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}
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}
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}
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private static void WriteBasicValue(XmlWriter XMLwrt, XmlRpcValueBasic val)
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{
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XMLwrt.WriteStartElement("value");//value
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switch (val.ValueType)
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{
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case XmlRpcBasicValueType.String:
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XMLwrt.WriteStartElement("string");
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if (val.Data != null)
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XMLwrt.WriteString(val.Data.ToString());
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XMLwrt.WriteEndElement();
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break;
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case XmlRpcBasicValueType.Int:
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XMLwrt.WriteStartElement("int");
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if (val.Data != null)
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XMLwrt.WriteString(val.Data.ToString());
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XMLwrt.WriteEndElement();
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break;
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case XmlRpcBasicValueType.Boolean:
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XMLwrt.WriteStartElement("boolean");
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if (val.Data != null)
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XMLwrt.WriteString(((bool)val.Data) ? "1" : "0");
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XMLwrt.WriteEndElement();
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break;
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case XmlRpcBasicValueType.Double:
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XMLwrt.WriteStartElement("double");
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if (val.Data != null)
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XMLwrt.WriteString(val.Data.ToString());
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XMLwrt.WriteEndElement();
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break;
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case XmlRpcBasicValueType.dateTime_iso8601:
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XMLwrt.WriteStartElement("dateTime.iso8601");
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// Get date time format
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if (val.Data != null)
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{
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DateTime time = (DateTime)val.Data;
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string dt = time.Year + time.Month.ToString("D2") + time.Day.ToString("D2") +
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"T" + time.Hour.ToString("D2") + ":" + time.Minute.ToString("D2") + ":" +
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time.Second.ToString("D2");
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XMLwrt.WriteString(dt);
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}
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XMLwrt.WriteEndElement();
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break;
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case XmlRpcBasicValueType.base64:
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XMLwrt.WriteStartElement("base64");
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if (val.Data != null)
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XMLwrt.WriteString(Convert.ToBase64String(BitConverter.GetBytes((long)val.Data)));
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XMLwrt.WriteEndElement();
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break;
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}
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XMLwrt.WriteEndElement();//value
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}
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private static void WriteStructValue(XmlWriter XMLwrt, XmlRpcValueStruct val)
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{
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XMLwrt.WriteStartElement("value");//value
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XMLwrt.WriteStartElement("struct");//struct
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foreach (XmlRpcStructMember member in val.Members)
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{
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XMLwrt.WriteStartElement("member");//member
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XMLwrt.WriteStartElement("name");//name
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XMLwrt.WriteString(member.Name);
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XMLwrt.WriteEndElement();//name
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if (member.Data is XmlRpcValueBasic)
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{
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WriteBasicValue(XMLwrt, (XmlRpcValueBasic)member.Data);
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}
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else if (member.Data is XmlRpcValueStruct)
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{
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WriteStructValue(XMLwrt, (XmlRpcValueStruct)member.Data);
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}
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else if (member.Data is XmlRpcValueArray)
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{
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WriteArrayValue(XMLwrt, (XmlRpcValueArray)member.Data);
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}
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XMLwrt.WriteEndElement();//member
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}
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XMLwrt.WriteEndElement();//struct
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XMLwrt.WriteEndElement();//value
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}
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private static void WriteArrayValue(XmlWriter XMLwrt, XmlRpcValueArray val)
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{
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XMLwrt.WriteStartElement("value");//value
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XMLwrt.WriteStartElement("array");//array
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XMLwrt.WriteStartElement("data");//data
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foreach (IXmlRpcValue o in val.Values)
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{
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if (o is XmlRpcValueBasic)
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{
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WriteBasicValue(XMLwrt, (XmlRpcValueBasic)o);
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}
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else if (o is XmlRpcValueStruct)
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{
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WriteStructValue(XMLwrt, (XmlRpcValueStruct)o);
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}
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else if (o is XmlRpcValueArray)
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{
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WriteArrayValue(XMLwrt, (XmlRpcValueArray)o);
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}
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}
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XMLwrt.WriteEndElement();//data
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XMLwrt.WriteEndElement();//array
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XMLwrt.WriteEndElement();//value
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}
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private static readonly CultureInfo UsCulture = new CultureInfo("en-US");
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private static string ReadString(XmlReader reader)
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{
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if (reader.NodeType == XmlNodeType.Element)
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{
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return reader.ReadElementContentAsString();
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}
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return reader.ReadContentAsString();
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}
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private static IXmlRpcValue ReadValue(XmlReader xmlReader, bool skipRead = false)
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{
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while (skipRead || xmlReader.Read())
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{
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if (xmlReader.Name == "value" && xmlReader.IsStartElement())
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{
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xmlReader.Read();
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if (xmlReader.Name == "string" && xmlReader.IsStartElement())
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{
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return new XmlRpcValueBasic(ReadString(xmlReader), XmlRpcBasicValueType.String);
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}
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else if (xmlReader.Name == "int" && xmlReader.IsStartElement())
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{
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return new XmlRpcValueBasic(int.Parse(ReadString(xmlReader), UsCulture), XmlRpcBasicValueType.Int);
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}
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else if (xmlReader.Name == "boolean" && xmlReader.IsStartElement())
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{
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return new XmlRpcValueBasic(ReadString(xmlReader) == "1", XmlRpcBasicValueType.Boolean);
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}
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else if (xmlReader.Name == "double" && xmlReader.IsStartElement())
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{
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return new XmlRpcValueBasic(double.Parse(ReadString(xmlReader), UsCulture), XmlRpcBasicValueType.Double);
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}
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else if (xmlReader.Name == "dateTime.iso8601" && xmlReader.IsStartElement())
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{
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string date = ReadString(xmlReader);
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int year = int.Parse(date.Substring(0, 4), UsCulture);
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int month = int.Parse(date.Substring(4, 2), UsCulture);
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int day = int.Parse(date.Substring(6, 2), UsCulture);
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int hour = int.Parse(date.Substring(9, 2), UsCulture);
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int minute = int.Parse(date.Substring(12, 2), UsCulture);//19980717T14:08:55
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int sec = int.Parse(date.Substring(15, 2), UsCulture);
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DateTime time = new DateTime(year, month, day, hour, minute, sec);
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return new XmlRpcValueBasic(time, XmlRpcBasicValueType.dateTime_iso8601);
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}
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else if (xmlReader.Name == "base64" && xmlReader.IsStartElement())
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{
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return new XmlRpcValueBasic(BitConverter.ToInt64(Convert.FromBase64String(ReadString(xmlReader)), 0)
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, XmlRpcBasicValueType.Double);
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}
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else if (xmlReader.Name == "struct" && xmlReader.IsStartElement())
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{
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XmlRpcValueStruct strct = new XmlRpcValueStruct(new List<XmlRpcStructMember>());
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// Read members...
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while (xmlReader.Read())
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{
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if (xmlReader.Name == "member" && xmlReader.IsStartElement())
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{
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XmlRpcStructMember member = new XmlRpcStructMember("", null);
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xmlReader.Read();// read name
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member.Name = ReadString(xmlReader);
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IXmlRpcValue val = ReadValue(xmlReader, true);
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if (val != null)
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{
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member.Data = val;
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strct.Members.Add(member);
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}
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}
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else if (xmlReader.Name == "struct" && !xmlReader.IsStartElement())
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{
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return strct;
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}
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}
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return strct;
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}
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else if (xmlReader.Name == "array" && xmlReader.IsStartElement())
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{
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XmlRpcValueArray array = new XmlRpcValueArray();
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// Read members...
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while (xmlReader.Read())
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{
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if (xmlReader.Name == "array" && !xmlReader.IsStartElement())
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{
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return array;
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}
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else
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{
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IXmlRpcValue val = ReadValue(xmlReader);
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if (val != null)
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array.Values.Add(val);
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}
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}
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return array;
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}
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}
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else break;
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if (skipRead)
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{
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return null;
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}
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}
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return null;
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}
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}
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}
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