1121 lines
44 KiB
C#
1121 lines
44 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.Collections;
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using System.Collections.Generic;
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using System.Collections.Specialized;
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using System.Globalization;
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using System.IO;
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using System.IO.Compression;
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using System.Net;
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using System.Net.Security;
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using System.Reflection;
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using System.Text;
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using System.Web;
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using System.Xml;
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using System.Xml.Serialization;
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using log4net;
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using OpenMetaverse.StructuredData;
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namespace OpenSim.Framework
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{
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/// <summary>
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/// Miscellaneous static methods and extension methods related to the web
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/// </summary>
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public static class WebUtil
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{
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private static readonly ILog m_log =
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LogManager.GetLogger(
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MethodBase.GetCurrentMethod().DeclaringType);
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/// <summary>
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/// Request number for diagnostic purposes.
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/// </summary>
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public static int RequestNumber = 0;
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/// <summary>
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/// this is the header field used to communicate the local request id
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/// used for performance and debugging
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/// </summary>
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public const string OSHeaderRequestID = "opensim-request-id";
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/// <summary>
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/// Number of milliseconds a call can take before it is considered
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/// a "long" call for warning & debugging purposes
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/// </summary>
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public const int LongCallTime = 3000;
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/// <summary>
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/// The maximum length of any data logged because of a long request time.
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/// </summary>
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/// <remarks>
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/// This is to truncate any really large post data, such as an asset. In theory, the first section should
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/// give us useful information about the call (which agent it relates to if applicable, etc.).
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/// </remarks>
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public const int MaxRequestDiagLength = 100;
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/// <summary>
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/// Dictionary of end points
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/// </summary>
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private static Dictionary<string,object> m_endpointSerializer = new Dictionary<string,object>();
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/// <summary>
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/// Make a GET or GET-like request to a web service that returns LLSD
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/// or JSON data
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/// </summary>
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public static OSDMap ServiceRequest(string url, string httpVerb)
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{
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string errorMessage;
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try
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{
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HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
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request.Method = httpVerb;
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using (WebResponse response = request.GetResponse())
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{
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using (Stream responseStream = response.GetResponseStream())
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{
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try
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{
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string responseStr = responseStream.GetStreamString();
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OSD responseOSD = OSDParser.Deserialize(responseStr);
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if (responseOSD.Type == OSDType.Map)
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return (OSDMap)responseOSD;
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else
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errorMessage = "Response format was invalid.";
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}
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catch
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{
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errorMessage = "Failed to parse the response.";
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}
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}
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}
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}
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catch (Exception ex)
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{
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m_log.Warn(httpVerb + " on URL " + url + " failed: " + ex.Message);
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errorMessage = ex.Message;
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}
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return new OSDMap { { "Message", OSD.FromString("Service request failed. " + errorMessage) } };
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}
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/// <summary>
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/// PUT JSON-encoded data to a web service that returns LLSD or
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/// JSON data
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/// </summary>
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public static OSDMap PutToServiceCompressed(string url, OSDMap data, int timeout)
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{
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return ServiceOSDRequest(url,data, "PUT", timeout, true);
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}
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public static OSDMap PutToService(string url, OSDMap data, int timeout)
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{
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return ServiceOSDRequest(url,data, "PUT", timeout, false);
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}
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public static OSDMap PostToService(string url, OSDMap data, int timeout)
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{
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return ServiceOSDRequest(url, data, "POST", timeout, false);
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}
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public static OSDMap PostToServiceCompressed(string url, OSDMap data, int timeout)
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{
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return ServiceOSDRequest(url, data, "POST", timeout, true);
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}
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public static OSDMap GetFromService(string url, int timeout)
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{
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return ServiceOSDRequest(url, null, "GET", timeout, false);
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}
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public static OSDMap ServiceOSDRequest(string url, OSDMap data, string method, int timeout, bool compressed)
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{
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int reqnum = RequestNumber++;
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// m_log.DebugFormat("[WEB UTIL]: <{0}> start osd request for {1}, method {2}",reqnum,url,method);
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string errorMessage = "unknown error";
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int tickstart = Util.EnvironmentTickCount();
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int tickdata = 0;
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string strBuffer = null;
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try
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{
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HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
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request.Method = method;
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request.Timeout = timeout;
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request.KeepAlive = false;
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request.MaximumAutomaticRedirections = 10;
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request.ReadWriteTimeout = timeout / 4;
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request.Headers[OSHeaderRequestID] = reqnum.ToString();
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// If there is some input, write it into the request
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if (data != null)
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{
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strBuffer = OSDParser.SerializeJsonString(data);
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byte[] buffer = System.Text.Encoding.UTF8.GetBytes(strBuffer);
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if (compressed)
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{
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request.ContentType = "application/x-gzip";
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using (MemoryStream ms = new MemoryStream())
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{
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using (GZipStream comp = new GZipStream(ms, CompressionMode.Compress))
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{
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comp.Write(buffer, 0, buffer.Length);
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// We need to close the gzip stream before we write it anywhere
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// because apparently something important related to gzip compression
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// gets written on the strteam upon Dispose()
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}
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byte[] buf = ms.ToArray();
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request.ContentLength = buf.Length; //Count bytes to send
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using (Stream requestStream = request.GetRequestStream())
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requestStream.Write(buf, 0, (int)buf.Length);
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}
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}
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else
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{
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request.ContentType = "application/json";
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request.ContentLength = buffer.Length; //Count bytes to send
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using (Stream requestStream = request.GetRequestStream())
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requestStream.Write(buffer, 0, buffer.Length); //Send it
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}
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}
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// capture how much time was spent writing, this may seem silly
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// but with the number concurrent requests, this often blocks
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tickdata = Util.EnvironmentTickCountSubtract(tickstart);
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using (WebResponse response = request.GetResponse())
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{
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using (Stream responseStream = response.GetResponseStream())
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{
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string responseStr = null;
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responseStr = responseStream.GetStreamString();
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// m_log.DebugFormat("[WEB UTIL]: <{0}> response is <{1}>",reqnum,responseStr);
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return CanonicalizeResults(responseStr);
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}
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}
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}
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catch (WebException we)
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{
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errorMessage = we.Message;
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if (we.Status == WebExceptionStatus.ProtocolError)
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{
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HttpWebResponse webResponse = (HttpWebResponse)we.Response;
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errorMessage = String.Format("[{0}] {1}",webResponse.StatusCode,webResponse.StatusDescription);
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}
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}
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catch (Exception ex)
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{
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errorMessage = ex.Message;
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}
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finally
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{
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int tickdiff = Util.EnvironmentTickCountSubtract(tickstart);
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if (tickdiff > LongCallTime)
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m_log.InfoFormat(
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"[OSD REQUEST]: Slow request to <{0}> {1} {2} took {3}ms, {4}ms writing, {5}",
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reqnum,
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method,
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url,
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tickdiff,
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tickdata,
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strBuffer != null
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? (strBuffer.Length > MaxRequestDiagLength ? strBuffer.Remove(MaxRequestDiagLength) : strBuffer)
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: "");
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}
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m_log.DebugFormat(
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"[WEB UTIL]: <{0}> osd request for {1}, method {2} FAILED: {3}", reqnum, url, method, errorMessage);
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return ErrorResponseMap(errorMessage);
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}
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/// <summary>
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/// Since there are no consistencies in the way web requests are
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/// formed, we need to do a little guessing about the result format.
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/// Keys:
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/// Success|success == the success fail of the request
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/// _RawResult == the raw string that came back
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/// _Result == the OSD unpacked string
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/// </summary>
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private static OSDMap CanonicalizeResults(string response)
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{
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OSDMap result = new OSDMap();
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// Default values
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result["Success"] = OSD.FromBoolean(true);
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result["success"] = OSD.FromBoolean(true);
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result["_RawResult"] = OSD.FromString(response);
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result["_Result"] = new OSDMap();
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if (response.Equals("true",System.StringComparison.OrdinalIgnoreCase))
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return result;
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if (response.Equals("false",System.StringComparison.OrdinalIgnoreCase))
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{
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result["Success"] = OSD.FromBoolean(false);
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result["success"] = OSD.FromBoolean(false);
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return result;
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}
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try
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{
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OSD responseOSD = OSDParser.Deserialize(response);
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if (responseOSD.Type == OSDType.Map)
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{
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result["_Result"] = (OSDMap)responseOSD;
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return result;
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}
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}
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catch
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{
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// don't need to treat this as an error... we're just guessing anyway
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// m_log.DebugFormat("[WEB UTIL] couldn't decode <{0}>: {1}",response,e.Message);
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}
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return result;
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}
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/// <summary>
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/// POST URL-encoded form data to a web service that returns LLSD or
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/// JSON data
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/// </summary>
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public static OSDMap PostToService(string url, NameValueCollection data)
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{
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return ServiceFormRequest(url,data,10000);
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}
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public static OSDMap ServiceFormRequest(string url, NameValueCollection data, int timeout)
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{
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int reqnum = RequestNumber++;
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string method = (data != null && data["RequestMethod"] != null) ? data["RequestMethod"] : "unknown";
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// m_log.DebugFormat("[WEB UTIL]: <{0}> start form request for {1}, method {2}",reqnum,url,method);
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string errorMessage = "unknown error";
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int tickstart = Util.EnvironmentTickCount();
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int tickdata = 0;
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string queryString = null;
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try
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{
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HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
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request.Method = "POST";
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request.Timeout = timeout;
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request.KeepAlive = false;
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request.MaximumAutomaticRedirections = 10;
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request.ReadWriteTimeout = timeout / 4;
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request.Headers[OSHeaderRequestID] = reqnum.ToString();
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if (data != null)
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{
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queryString = BuildQueryString(data);
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byte[] buffer = System.Text.Encoding.UTF8.GetBytes(queryString);
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request.ContentLength = buffer.Length;
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request.ContentType = "application/x-www-form-urlencoded";
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using (Stream requestStream = request.GetRequestStream())
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requestStream.Write(buffer, 0, buffer.Length);
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}
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// capture how much time was spent writing, this may seem silly
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// but with the number concurrent requests, this often blocks
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tickdata = Util.EnvironmentTickCountSubtract(tickstart);
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using (WebResponse response = request.GetResponse())
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{
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using (Stream responseStream = response.GetResponseStream())
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{
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string responseStr = null;
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responseStr = responseStream.GetStreamString();
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OSD responseOSD = OSDParser.Deserialize(responseStr);
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if (responseOSD.Type == OSDType.Map)
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return (OSDMap)responseOSD;
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}
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}
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}
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catch (WebException we)
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{
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errorMessage = we.Message;
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if (we.Status == WebExceptionStatus.ProtocolError)
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{
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HttpWebResponse webResponse = (HttpWebResponse)we.Response;
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errorMessage = String.Format("[{0}] {1}",webResponse.StatusCode,webResponse.StatusDescription);
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}
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}
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catch (Exception ex)
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{
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errorMessage = ex.Message;
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}
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finally
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{
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int tickdiff = Util.EnvironmentTickCountSubtract(tickstart);
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if (tickdiff > LongCallTime)
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m_log.InfoFormat(
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"[SERVICE FORM]: Slow request to <{0}> {1} {2} took {3}ms, {4}ms writing, {5}",
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reqnum,
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method,
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url,
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tickdiff,
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tickdata,
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queryString != null
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? (queryString.Length > MaxRequestDiagLength) ? queryString.Remove(MaxRequestDiagLength) : queryString
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: "");
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}
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m_log.WarnFormat("[SERVICE FORM]: <{0}> form request to {1} failed: {2}", reqnum, url, errorMessage);
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return ErrorResponseMap(errorMessage);
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}
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/// <summary>
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/// Create a response map for an error, trying to keep
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/// the result formats consistent
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/// </summary>
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private static OSDMap ErrorResponseMap(string msg)
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{
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OSDMap result = new OSDMap();
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result["Success"] = "False";
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result["Message"] = OSD.FromString("Service request failed: " + msg);
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return result;
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}
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#region Uri
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/// <summary>
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/// Combines a Uri that can contain both a base Uri and relative path
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/// with a second relative path fragment
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/// </summary>
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/// <param name="uri">Starting (base) Uri</param>
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/// <param name="fragment">Relative path fragment to append to the end
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/// of the Uri</param>
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/// <returns>The combined Uri</returns>
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/// <remarks>This is similar to the Uri constructor that takes a base
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/// Uri and the relative path, except this method can append a relative
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/// path fragment on to an existing relative path</remarks>
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public static Uri Combine(this Uri uri, string fragment)
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{
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string fragment1 = uri.Fragment;
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string fragment2 = fragment;
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if (!fragment1.EndsWith("/"))
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fragment1 = fragment1 + '/';
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if (fragment2.StartsWith("/"))
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fragment2 = fragment2.Substring(1);
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return new Uri(uri, fragment1 + fragment2);
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}
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/// <summary>
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/// Combines a Uri that can contain both a base Uri and relative path
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/// with a second relative path fragment. If the fragment is absolute,
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/// it will be returned without modification
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/// </summary>
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/// <param name="uri">Starting (base) Uri</param>
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/// <param name="fragment">Relative path fragment to append to the end
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/// of the Uri, or an absolute Uri to return unmodified</param>
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/// <returns>The combined Uri</returns>
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public static Uri Combine(this Uri uri, Uri fragment)
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{
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if (fragment.IsAbsoluteUri)
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return fragment;
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string fragment1 = uri.Fragment;
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string fragment2 = fragment.ToString();
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if (!fragment1.EndsWith("/"))
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fragment1 = fragment1 + '/';
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if (fragment2.StartsWith("/"))
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fragment2 = fragment2.Substring(1);
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return new Uri(uri, fragment1 + fragment2);
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}
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/// <summary>
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/// Appends a query string to a Uri that may or may not have existing
|
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/// query parameters
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/// </summary>
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/// <param name="uri">Uri to append the query to</param>
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/// <param name="query">Query string to append. Can either start with ?
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/// or just containg key/value pairs</param>
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/// <returns>String representation of the Uri with the query string
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/// appended</returns>
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public static string AppendQuery(this Uri uri, string query)
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{
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if (String.IsNullOrEmpty(query))
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return uri.ToString();
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if (query[0] == '?' || query[0] == '&')
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query = query.Substring(1);
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string uriStr = uri.ToString();
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if (uriStr.Contains("?"))
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return uriStr + '&' + query;
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else
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return uriStr + '?' + query;
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}
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|
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#endregion Uri
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|
|
#region NameValueCollection
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|
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/// <summary>
|
|
/// Convert a NameValueCollection into a query string. This is the
|
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/// inverse of HttpUtility.ParseQueryString()
|
|
/// </summary>
|
|
/// <param name="parameters">Collection of key/value pairs to convert</param>
|
|
/// <returns>A query string with URL-escaped values</returns>
|
|
public static string BuildQueryString(NameValueCollection parameters)
|
|
{
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List<string> items = new List<string>(parameters.Count);
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|
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foreach (string key in parameters.Keys)
|
|
{
|
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string[] values = parameters.GetValues(key);
|
|
if (values != null)
|
|
{
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foreach (string value in values)
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items.Add(String.Concat(key, "=", HttpUtility.UrlEncode(value ?? String.Empty)));
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}
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|
}
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|
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return String.Join("&", items.ToArray());
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|
}
|
|
|
|
/// <summary>
|
|
///
|
|
/// </summary>
|
|
/// <param name="collection"></param>
|
|
/// <param name="key"></param>
|
|
/// <returns></returns>
|
|
public static string GetOne(this NameValueCollection collection, string key)
|
|
{
|
|
string[] values = collection.GetValues(key);
|
|
if (values != null && values.Length > 0)
|
|
return values[0];
|
|
|
|
return null;
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|
}
|
|
|
|
#endregion NameValueCollection
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|
|
|
#region Stream
|
|
|
|
/// <summary>
|
|
/// Copies the contents of one stream to another, starting at the
|
|
/// current position of each stream
|
|
/// </summary>
|
|
/// <param name="copyFrom">The stream to copy from, at the position
|
|
/// where copying should begin</param>
|
|
/// <param name="copyTo">The stream to copy to, at the position where
|
|
/// bytes should be written</param>
|
|
/// <param name="maximumBytesToCopy">The maximum bytes to copy</param>
|
|
/// <returns>The total number of bytes copied</returns>
|
|
/// <remarks>
|
|
/// Copying begins at the streams' current positions. The positions are
|
|
/// NOT reset after copying is complete.
|
|
/// </remarks>
|
|
public static int CopyTo(this Stream copyFrom, Stream copyTo, int maximumBytesToCopy)
|
|
{
|
|
byte[] buffer = new byte[4096];
|
|
int readBytes;
|
|
int totalCopiedBytes = 0;
|
|
|
|
while ((readBytes = copyFrom.Read(buffer, 0, Math.Min(4096, maximumBytesToCopy))) > 0)
|
|
{
|
|
int writeBytes = Math.Min(maximumBytesToCopy, readBytes);
|
|
copyTo.Write(buffer, 0, writeBytes);
|
|
totalCopiedBytes += writeBytes;
|
|
maximumBytesToCopy -= writeBytes;
|
|
}
|
|
|
|
return totalCopiedBytes;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Converts an entire stream to a string, regardless of current stream
|
|
/// position
|
|
/// </summary>
|
|
/// <param name="stream">The stream to convert to a string</param>
|
|
/// <returns></returns>
|
|
/// <remarks>When this method is done, the stream position will be
|
|
/// reset to its previous position before this method was called</remarks>
|
|
public static string GetStreamString(this Stream stream)
|
|
{
|
|
string value = null;
|
|
|
|
if (stream != null && stream.CanRead)
|
|
{
|
|
long rewindPos = -1;
|
|
|
|
if (stream.CanSeek)
|
|
{
|
|
rewindPos = stream.Position;
|
|
stream.Seek(0, SeekOrigin.Begin);
|
|
}
|
|
|
|
StreamReader reader = new StreamReader(stream);
|
|
value = reader.ReadToEnd();
|
|
|
|
if (rewindPos >= 0)
|
|
stream.Seek(rewindPos, SeekOrigin.Begin);
|
|
}
|
|
|
|
return value;
|
|
}
|
|
|
|
#endregion Stream
|
|
|
|
public class QBasedComparer : IComparer
|
|
{
|
|
public int Compare(Object x, Object y)
|
|
{
|
|
float qx = GetQ(x);
|
|
float qy = GetQ(y);
|
|
return qy.CompareTo(qx); // descending order
|
|
}
|
|
|
|
private float GetQ(Object o)
|
|
{
|
|
// Example: image/png;q=0.9
|
|
|
|
float qvalue = 1F;
|
|
if (o is String)
|
|
{
|
|
string mime = (string)o;
|
|
string[] parts = mime.Split(';');
|
|
if (parts.Length > 1)
|
|
{
|
|
string[] kvp = parts[1].Split('=');
|
|
if (kvp.Length == 2 && kvp[0] == "q")
|
|
float.TryParse(kvp[1], NumberStyles.Number, CultureInfo.InvariantCulture, out qvalue);
|
|
}
|
|
}
|
|
|
|
return qvalue;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Takes the value of an Accept header and returns the preferred types
|
|
/// ordered by q value (if it exists).
|
|
/// Example input: image/jpg;q=0.7, image/png;q=0.8, image/jp2
|
|
/// Exmaple output: ["jp2", "png", "jpg"]
|
|
/// NOTE: This doesn't handle the semantics of *'s...
|
|
/// </summary>
|
|
/// <param name="accept"></param>
|
|
/// <returns></returns>
|
|
public static string[] GetPreferredImageTypes(string accept)
|
|
{
|
|
|
|
if (accept == null || accept == string.Empty)
|
|
return new string[0];
|
|
|
|
string[] types = accept.Split(new char[] { ',' });
|
|
if (types.Length > 0)
|
|
{
|
|
List<string> list = new List<string>(types);
|
|
list.RemoveAll(delegate(string s) { return !s.ToLower().StartsWith("image"); });
|
|
ArrayList tlist = new ArrayList(list);
|
|
tlist.Sort(new QBasedComparer());
|
|
|
|
string[] result = new string[tlist.Count];
|
|
for (int i = 0; i < tlist.Count; i++)
|
|
{
|
|
string mime = (string)tlist[i];
|
|
string[] parts = mime.Split(new char[] { ';' });
|
|
string[] pair = parts[0].Split(new char[] { '/' });
|
|
if (pair.Length == 2)
|
|
result[i] = pair[1].ToLower();
|
|
else // oops, we don't know what this is...
|
|
result[i] = pair[0];
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
return new string[0];
|
|
}
|
|
}
|
|
|
|
public static class AsynchronousRestObjectRequester
|
|
{
|
|
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
|
|
|
|
/// <summary>
|
|
/// Perform an asynchronous REST request.
|
|
/// </summary>
|
|
/// <param name="verb">GET or POST</param>
|
|
/// <param name="requestUrl"></param>
|
|
/// <param name="obj"></param>
|
|
/// <param name="action"></param>
|
|
/// <returns></returns>
|
|
///
|
|
/// <exception cref="System.Net.WebException">Thrown if we encounter a
|
|
/// network issue while posting the request. You'll want to make
|
|
/// sure you deal with this as they're not uncommon</exception>
|
|
//
|
|
public static void MakeRequest<TRequest, TResponse>(string verb,
|
|
string requestUrl, TRequest obj, Action<TResponse> action)
|
|
{
|
|
int reqnum = WebUtil.RequestNumber++;
|
|
// m_log.DebugFormat("[WEB UTIL]: <{0}> start osd request for {1}, method {2}",reqnum,url,method);
|
|
|
|
int tickstart = Util.EnvironmentTickCount();
|
|
int tickdata = 0;
|
|
|
|
// m_log.DebugFormat("[ASYNC REQUEST]: Starting {0} {1}", verb, requestUrl);
|
|
|
|
Type type = typeof(TRequest);
|
|
|
|
WebRequest request = WebRequest.Create(requestUrl);
|
|
WebResponse response = null;
|
|
TResponse deserial = default(TResponse);
|
|
XmlSerializer deserializer = new XmlSerializer(typeof(TResponse));
|
|
|
|
request.Method = verb;
|
|
MemoryStream buffer = null;
|
|
|
|
if (verb == "POST")
|
|
{
|
|
request.ContentType = "text/xml";
|
|
|
|
buffer = new MemoryStream();
|
|
|
|
XmlWriterSettings settings = new XmlWriterSettings();
|
|
settings.Encoding = Encoding.UTF8;
|
|
|
|
using (XmlWriter writer = XmlWriter.Create(buffer, settings))
|
|
{
|
|
XmlSerializer serializer = new XmlSerializer(type);
|
|
serializer.Serialize(writer, obj);
|
|
writer.Flush();
|
|
}
|
|
|
|
int length = (int)buffer.Length;
|
|
request.ContentLength = length;
|
|
|
|
request.BeginGetRequestStream(delegate(IAsyncResult res)
|
|
{
|
|
Stream requestStream = request.EndGetRequestStream(res);
|
|
|
|
requestStream.Write(buffer.ToArray(), 0, length);
|
|
requestStream.Close();
|
|
|
|
// capture how much time was spent writing
|
|
tickdata = Util.EnvironmentTickCountSubtract(tickstart);
|
|
|
|
request.BeginGetResponse(delegate(IAsyncResult ar)
|
|
{
|
|
response = request.EndGetResponse(ar);
|
|
Stream respStream = null;
|
|
try
|
|
{
|
|
respStream = response.GetResponseStream();
|
|
deserial = (TResponse)deserializer.Deserialize(
|
|
respStream);
|
|
}
|
|
catch (System.InvalidOperationException)
|
|
{
|
|
}
|
|
finally
|
|
{
|
|
// Let's not close this
|
|
//buffer.Close();
|
|
respStream.Close();
|
|
response.Close();
|
|
}
|
|
|
|
action(deserial);
|
|
|
|
}, null);
|
|
}, null);
|
|
}
|
|
else
|
|
{
|
|
request.BeginGetResponse(delegate(IAsyncResult res2)
|
|
{
|
|
try
|
|
{
|
|
// If the server returns a 404, this appears to trigger a System.Net.WebException even though that isn't
|
|
// documented in MSDN
|
|
response = request.EndGetResponse(res2);
|
|
|
|
Stream respStream = null;
|
|
try
|
|
{
|
|
respStream = response.GetResponseStream();
|
|
deserial = (TResponse)deserializer.Deserialize(respStream);
|
|
}
|
|
catch (System.InvalidOperationException)
|
|
{
|
|
}
|
|
finally
|
|
{
|
|
respStream.Close();
|
|
response.Close();
|
|
}
|
|
}
|
|
catch (WebException e)
|
|
{
|
|
if (e.Status == WebExceptionStatus.ProtocolError)
|
|
{
|
|
if (e.Response is HttpWebResponse)
|
|
{
|
|
HttpWebResponse httpResponse = (HttpWebResponse)e.Response;
|
|
|
|
if (httpResponse.StatusCode != HttpStatusCode.NotFound)
|
|
{
|
|
// We don't appear to be handling any other status codes, so log these feailures to that
|
|
// people don't spend unnecessary hours hunting phantom bugs.
|
|
m_log.DebugFormat(
|
|
"[ASYNC REQUEST]: Request {0} {1} failed with unexpected status code {2}",
|
|
verb, requestUrl, httpResponse.StatusCode);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
m_log.ErrorFormat(
|
|
"[ASYNC REQUEST]: Request {0} {1} failed with status {2} and message {3}",
|
|
verb, requestUrl, e.Status, e.Message);
|
|
}
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
m_log.ErrorFormat(
|
|
"[ASYNC REQUEST]: Request {0} {1} failed with exception {2}{3}",
|
|
verb, requestUrl, e.Message, e.StackTrace);
|
|
}
|
|
|
|
// m_log.DebugFormat("[ASYNC REQUEST]: Received {0}", deserial.ToString());
|
|
|
|
try
|
|
{
|
|
action(deserial);
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
m_log.ErrorFormat(
|
|
"[ASYNC REQUEST]: Request {0} {1} callback failed with exception {2}{3}",
|
|
verb, requestUrl, e.Message, e.StackTrace);
|
|
}
|
|
|
|
}, null);
|
|
}
|
|
|
|
int tickdiff = Util.EnvironmentTickCountSubtract(tickstart);
|
|
if (tickdiff > WebUtil.LongCallTime)
|
|
{
|
|
string originalRequest = null;
|
|
|
|
if (buffer != null)
|
|
{
|
|
originalRequest = Encoding.UTF8.GetString(buffer.ToArray());
|
|
|
|
if (originalRequest.Length > WebUtil.MaxRequestDiagLength)
|
|
originalRequest = originalRequest.Remove(WebUtil.MaxRequestDiagLength);
|
|
}
|
|
|
|
m_log.InfoFormat(
|
|
"[ASYNC REQUEST]: Slow request to <{0}> {1} {2} took {3}ms, {4}ms writing, {5}",
|
|
reqnum,
|
|
verb,
|
|
requestUrl,
|
|
tickdiff,
|
|
tickdata,
|
|
originalRequest);
|
|
}
|
|
}
|
|
}
|
|
|
|
public static class SynchronousRestFormsRequester
|
|
{
|
|
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
|
|
|
|
/// <summary>
|
|
/// Perform a synchronous REST request.
|
|
/// </summary>
|
|
/// <param name="verb"></param>
|
|
/// <param name="requestUrl"></param>
|
|
/// <param name="obj"> </param>
|
|
/// <returns></returns>
|
|
///
|
|
/// <exception cref="System.Net.WebException">Thrown if we encounter a network issue while posting
|
|
/// the request. You'll want to make sure you deal with this as they're not uncommon</exception>
|
|
public static string MakeRequest(string verb, string requestUrl, string obj)
|
|
{
|
|
int reqnum = WebUtil.RequestNumber++;
|
|
// m_log.DebugFormat("[WEB UTIL]: <{0}> start osd request for {1}, method {2}",reqnum,url,method);
|
|
|
|
int tickstart = Util.EnvironmentTickCount();
|
|
int tickdata = 0;
|
|
|
|
WebRequest request = WebRequest.Create(requestUrl);
|
|
request.Method = verb;
|
|
string respstring = String.Empty;
|
|
|
|
using (MemoryStream buffer = new MemoryStream())
|
|
{
|
|
if ((verb == "POST") || (verb == "PUT"))
|
|
{
|
|
request.ContentType = "application/x-www-form-urlencoded";
|
|
|
|
int length = 0;
|
|
using (StreamWriter writer = new StreamWriter(buffer))
|
|
{
|
|
writer.Write(obj);
|
|
writer.Flush();
|
|
}
|
|
|
|
length = (int)obj.Length;
|
|
request.ContentLength = length;
|
|
|
|
Stream requestStream = null;
|
|
try
|
|
{
|
|
requestStream = request.GetRequestStream();
|
|
requestStream.Write(buffer.ToArray(), 0, length);
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
m_log.DebugFormat(
|
|
"[FORMS]: exception occured {0} {1}: {2}{3}", verb, requestUrl, e.Message, e.StackTrace);
|
|
}
|
|
finally
|
|
{
|
|
if (requestStream != null)
|
|
requestStream.Close();
|
|
|
|
// capture how much time was spent writing
|
|
tickdata = Util.EnvironmentTickCountSubtract(tickstart);
|
|
}
|
|
}
|
|
|
|
try
|
|
{
|
|
using (WebResponse resp = request.GetResponse())
|
|
{
|
|
if (resp.ContentLength != 0)
|
|
{
|
|
Stream respStream = null;
|
|
try
|
|
{
|
|
respStream = resp.GetResponseStream();
|
|
using (StreamReader reader = new StreamReader(respStream))
|
|
{
|
|
respstring = reader.ReadToEnd();
|
|
}
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
m_log.DebugFormat(
|
|
"[FORMS]: Exception occured on receiving {0} {1}: {2}{3}",
|
|
verb, requestUrl, e.Message, e.StackTrace);
|
|
}
|
|
finally
|
|
{
|
|
if (respStream != null)
|
|
respStream.Close();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
catch (System.InvalidOperationException)
|
|
{
|
|
// This is what happens when there is invalid XML
|
|
m_log.DebugFormat("[FORMS]: InvalidOperationException on receiving {0} {1}", verb, requestUrl);
|
|
}
|
|
}
|
|
|
|
int tickdiff = Util.EnvironmentTickCountSubtract(tickstart);
|
|
if (tickdiff > WebUtil.LongCallTime)
|
|
m_log.InfoFormat(
|
|
"[FORMS]: Slow request to <{0}> {1} {2} took {3}ms, {4}ms writing, {5}",
|
|
reqnum,
|
|
verb,
|
|
requestUrl,
|
|
tickdiff,
|
|
tickdata,
|
|
obj.Length > WebUtil.MaxRequestDiagLength ? obj.Remove(WebUtil.MaxRequestDiagLength) : obj);
|
|
|
|
return respstring;
|
|
}
|
|
}
|
|
|
|
public class SynchronousRestObjectRequester
|
|
{
|
|
private static readonly ILog m_log =
|
|
LogManager.GetLogger(
|
|
MethodBase.GetCurrentMethod().DeclaringType);
|
|
|
|
/// <summary>
|
|
/// Perform a synchronous REST request.
|
|
/// </summary>
|
|
/// <param name="verb"></param>
|
|
/// <param name="requestUrl"></param>
|
|
/// <param name="obj"> </param>
|
|
/// <returns></returns>
|
|
///
|
|
/// <exception cref="System.Net.WebException">Thrown if we encounter a network issue while posting
|
|
/// the request. You'll want to make sure you deal with this as they're not uncommon</exception>
|
|
public static TResponse MakeRequest<TRequest, TResponse>(string verb, string requestUrl, TRequest obj)
|
|
{
|
|
int reqnum = WebUtil.RequestNumber++;
|
|
// m_log.DebugFormat("[WEB UTIL]: <{0}> start osd request for {1}, method {2}",reqnum,url,method);
|
|
|
|
int tickstart = Util.EnvironmentTickCount();
|
|
int tickdata = 0;
|
|
|
|
Type type = typeof(TRequest);
|
|
TResponse deserial = default(TResponse);
|
|
|
|
WebRequest request = WebRequest.Create(requestUrl);
|
|
request.Method = verb;
|
|
MemoryStream buffer = null;
|
|
|
|
if ((verb == "POST") || (verb == "PUT"))
|
|
{
|
|
request.ContentType = "text/xml";
|
|
|
|
buffer = new MemoryStream();
|
|
|
|
XmlWriterSettings settings = new XmlWriterSettings();
|
|
settings.Encoding = Encoding.UTF8;
|
|
|
|
using (XmlWriter writer = XmlWriter.Create(buffer, settings))
|
|
{
|
|
XmlSerializer serializer = new XmlSerializer(type);
|
|
serializer.Serialize(writer, obj);
|
|
writer.Flush();
|
|
}
|
|
|
|
int length = (int)buffer.Length;
|
|
request.ContentLength = length;
|
|
|
|
Stream requestStream = null;
|
|
try
|
|
{
|
|
requestStream = request.GetRequestStream();
|
|
requestStream.Write(buffer.ToArray(), 0, length);
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
m_log.DebugFormat(
|
|
"[SynchronousRestObjectRequester]: Exception in making request {0} {1}: {2}{3}",
|
|
verb, requestUrl, e.Message, e.StackTrace);
|
|
|
|
return deserial;
|
|
}
|
|
finally
|
|
{
|
|
if (requestStream != null)
|
|
requestStream.Close();
|
|
|
|
// capture how much time was spent writing
|
|
tickdata = Util.EnvironmentTickCountSubtract(tickstart);
|
|
}
|
|
}
|
|
|
|
try
|
|
{
|
|
using (HttpWebResponse resp = (HttpWebResponse)request.GetResponse())
|
|
{
|
|
if (resp.ContentLength != 0)
|
|
{
|
|
Stream respStream = resp.GetResponseStream();
|
|
XmlSerializer deserializer = new XmlSerializer(typeof(TResponse));
|
|
deserial = (TResponse)deserializer.Deserialize(respStream);
|
|
respStream.Close();
|
|
}
|
|
else
|
|
{
|
|
m_log.DebugFormat(
|
|
"[SynchronousRestObjectRequester]: Oops! no content found in response stream from {0} {1}",
|
|
verb, requestUrl);
|
|
}
|
|
}
|
|
}
|
|
catch (WebException e)
|
|
{
|
|
HttpWebResponse hwr = (HttpWebResponse)e.Response;
|
|
|
|
if (hwr != null && hwr.StatusCode == HttpStatusCode.NotFound)
|
|
return deserial;
|
|
else
|
|
m_log.ErrorFormat(
|
|
"[SynchronousRestObjectRequester]: WebException for {0} {1} {2}: {3} {4}",
|
|
verb, requestUrl, typeof(TResponse).ToString(), e.Message, e.StackTrace);
|
|
}
|
|
catch (System.InvalidOperationException)
|
|
{
|
|
// This is what happens when there is invalid XML
|
|
m_log.DebugFormat(
|
|
"[SynchronousRestObjectRequester]: Invalid XML from {0} {1} {2}",
|
|
verb, requestUrl, typeof(TResponse).ToString());
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
m_log.DebugFormat(
|
|
"[SynchronousRestObjectRequester]: Exception on response from {0} {1}: {2}{3}",
|
|
verb, requestUrl, e.Message, e.StackTrace);
|
|
}
|
|
|
|
int tickdiff = Util.EnvironmentTickCountSubtract(tickstart);
|
|
if (tickdiff > WebUtil.LongCallTime)
|
|
{
|
|
string originalRequest = null;
|
|
|
|
if (buffer != null)
|
|
{
|
|
originalRequest = Encoding.UTF8.GetString(buffer.ToArray());
|
|
|
|
if (originalRequest.Length > WebUtil.MaxRequestDiagLength)
|
|
originalRequest = originalRequest.Remove(WebUtil.MaxRequestDiagLength);
|
|
}
|
|
|
|
m_log.InfoFormat(
|
|
"[SynchronousRestObjectRequester]: Slow request to <{0}> {1} {2} took {3}ms, {4}ms writing, {5}",
|
|
reqnum,
|
|
verb,
|
|
requestUrl,
|
|
tickdiff,
|
|
tickdata,
|
|
originalRequest);
|
|
}
|
|
|
|
return deserial;
|
|
}
|
|
}
|
|
}
|