324 lines
11 KiB
C#
324 lines
11 KiB
C#
/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSimulator Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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using System;
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using System.IO;
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using System.Reflection;
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using System.Xml;
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using System.Xml.Serialization;
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using System.Text;
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using System.Collections.Generic;
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using log4net;
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using OpenSim.Framework;
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using OpenMetaverse;
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namespace OpenSim.Server.Base
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{
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public static class ServerUtils
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{
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private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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public static byte[] SerializeResult(XmlSerializer xs, object data)
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{
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MemoryStream ms = new MemoryStream();
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XmlTextWriter xw = new XmlTextWriter(ms, Util.UTF8);
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xw.Formatting = Formatting.Indented;
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xs.Serialize(xw, data);
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xw.Flush();
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ms.Seek(0, SeekOrigin.Begin);
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byte[] ret = ms.GetBuffer();
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Array.Resize(ref ret, (int)ms.Length);
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return ret;
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}
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/// <summary>
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/// Load a plugin from a dll with the given class or interface
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/// </summary>
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/// <param name="dllName"></param>
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/// <param name="args">The arguments which control which constructor is invoked on the plugin</param>
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/// <returns></returns>
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public static T LoadPlugin<T>(string dllName, Object[] args) where T:class
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{
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string[] parts = dllName.Split(new char[] {':'});
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dllName = parts[0];
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string className = String.Empty;
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if (parts.Length > 1)
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className = parts[1];
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return LoadPlugin<T>(dllName, className, args);
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}
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/// <summary>
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/// Load a plugin from a dll with the given class or interface
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/// </summary>
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/// <param name="dllName"></param>
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/// <param name="className"></param>
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/// <param name="args">The arguments which control which constructor is invoked on the plugin</param>
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/// <returns></returns>
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public static T LoadPlugin<T>(string dllName, string className, Object[] args) where T:class
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{
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string interfaceName = typeof(T).ToString();
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try
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{
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Assembly pluginAssembly = Assembly.LoadFrom(dllName);
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foreach (Type pluginType in pluginAssembly.GetTypes())
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{
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if (pluginType.IsPublic)
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{
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if (className != String.Empty
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&& pluginType.ToString() != pluginType.Namespace + "." + className)
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continue;
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Type typeInterface = pluginType.GetInterface(interfaceName, true);
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if (typeInterface != null)
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{
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T plug = null;
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try
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{
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plug = (T)Activator.CreateInstance(pluginType,
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args);
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}
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catch (Exception e)
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{
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if (!(e is System.MissingMethodException))
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m_log.ErrorFormat("Error loading plugin from {0}, exception {1}", dllName, e.InnerException);
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return null;
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}
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return plug;
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}
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}
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}
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return null;
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}
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catch (Exception e)
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{
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m_log.Error(string.Format("Error loading plugin from {0}", dllName), e);
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return null;
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}
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}
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public static Dictionary<string, object> ParseQueryString(string query)
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{
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Dictionary<string, object> result = new Dictionary<string, object>();
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string[] terms = query.Split(new char[] {'&'});
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if (terms.Length == 0)
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return result;
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foreach (string t in terms)
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{
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string[] elems = t.Split(new char[] {'='});
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if (elems.Length == 0)
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continue;
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string name = System.Web.HttpUtility.UrlDecode(elems[0]);
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string value = String.Empty;
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if (elems.Length > 1)
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value = System.Web.HttpUtility.UrlDecode(elems[1]);
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if (name.EndsWith("[]"))
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{
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string cleanName = name.Substring(0, name.Length - 2);
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if (result.ContainsKey(cleanName))
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{
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if (!(result[cleanName] is List<string>))
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continue;
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List<string> l = (List<string>)result[cleanName];
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l.Add(value);
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}
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else
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{
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List<string> newList = new List<string>();
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newList.Add(value);
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result[cleanName] = newList;
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}
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}
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else
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{
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if (!result.ContainsKey(name))
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result[name] = value;
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}
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}
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return result;
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}
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public static string BuildQueryString(Dictionary<string, object> data)
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{
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string qstring = String.Empty;
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string part;
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foreach (KeyValuePair<string, object> kvp in data)
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{
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if (kvp.Value is List<string>)
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{
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List<string> l = (List<String>)kvp.Value;
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foreach (string s in l)
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{
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part = System.Web.HttpUtility.UrlEncode(kvp.Key) +
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"[]=" + System.Web.HttpUtility.UrlEncode(s);
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if (qstring != String.Empty)
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qstring += "&";
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qstring += part;
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}
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}
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else
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{
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if (kvp.Value.ToString() != String.Empty)
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{
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part = System.Web.HttpUtility.UrlEncode(kvp.Key) +
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"=" + System.Web.HttpUtility.UrlEncode(kvp.Value.ToString());
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}
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else
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{
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part = System.Web.HttpUtility.UrlEncode(kvp.Key);
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}
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if (qstring != String.Empty)
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qstring += "&";
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qstring += part;
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}
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}
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return qstring;
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}
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public static string BuildXmlResponse(Dictionary<string, object> data)
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{
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XmlDocument doc = new XmlDocument();
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XmlNode xmlnode = doc.CreateNode(XmlNodeType.XmlDeclaration,
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"", "");
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doc.AppendChild(xmlnode);
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XmlElement rootElement = doc.CreateElement("", "ServerResponse",
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"");
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doc.AppendChild(rootElement);
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BuildXmlData(rootElement, data);
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return doc.InnerXml;
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}
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private static void BuildXmlData(XmlElement parent, Dictionary<string, object> data)
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{
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foreach (KeyValuePair<string, object> kvp in data)
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{
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if (kvp.Value == null)
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continue;
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XmlElement elem = parent.OwnerDocument.CreateElement("",
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kvp.Key, "");
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if (kvp.Value is Dictionary<string, object>)
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{
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XmlAttribute type = parent.OwnerDocument.CreateAttribute("",
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"type", "");
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type.Value = "List";
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elem.Attributes.Append(type);
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BuildXmlData(elem, (Dictionary<string, object>)kvp.Value);
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}
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else
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{
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elem.AppendChild(parent.OwnerDocument.CreateTextNode(
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kvp.Value.ToString()));
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}
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parent.AppendChild(elem);
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}
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}
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public static Dictionary<string, object> ParseXmlResponse(string data)
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{
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//m_log.DebugFormat("[XXX]: received xml string: {0}", data);
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Dictionary<string, object> ret = new Dictionary<string, object>();
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XmlDocument doc = new XmlDocument();
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doc.LoadXml(data);
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XmlNodeList rootL = doc.GetElementsByTagName("ServerResponse");
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if (rootL.Count != 1)
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return ret;
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XmlNode rootNode = rootL[0];
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ret = ParseElement(rootNode);
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return ret;
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}
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private static Dictionary<string, object> ParseElement(XmlNode element)
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{
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Dictionary<string, object> ret = new Dictionary<string, object>();
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XmlNodeList partL = element.ChildNodes;
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foreach (XmlNode part in partL)
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{
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XmlNode type = part.Attributes.GetNamedItem("type");
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if (type == null || type.Value != "List")
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{
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ret[part.Name] = part.InnerText;
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}
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else
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{
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ret[part.Name] = ParseElement(part);
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}
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}
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return ret;
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}
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}
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}
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