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-rw-r--r--OpenSim/Framework/WebUtil.cs335
1 files changed, 335 insertions, 0 deletions
diff --git a/OpenSim/Framework/WebUtil.cs b/OpenSim/Framework/WebUtil.cs
index 1feeeb3..64cd014 100644
--- a/OpenSim/Framework/WebUtil.cs
+++ b/OpenSim/Framework/WebUtil.cs
@@ -36,6 +36,9 @@ using System.Net.Security;
36using System.Reflection; 36using System.Reflection;
37using System.Text; 37using System.Text;
38using System.Web; 38using System.Web;
39using System.Xml;
40using System.Xml.Serialization;
41
39using log4net; 42using log4net;
40using OpenSim.Framework.Servers.HttpServer; 43using OpenSim.Framework.Servers.HttpServer;
41using OpenMetaverse.StructuredData; 44using OpenMetaverse.StructuredData;
@@ -625,4 +628,336 @@ namespace OpenSim.Framework
625 628
626 629
627 } 630 }
631
632 public static class AsynchronousRestObjectRequester
633 {
634 private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
635
636 /// <summary>
637 /// Perform an asynchronous REST request.
638 /// </summary>
639 /// <param name="verb">GET or POST</param>
640 /// <param name="requestUrl"></param>
641 /// <param name="obj"></param>
642 /// <param name="action"></param>
643 /// <returns></returns>
644 ///
645 /// <exception cref="System.Net.WebException">Thrown if we encounter a
646 /// network issue while posting the request. You'll want to make
647 /// sure you deal with this as they're not uncommon</exception>
648 //
649 public static void MakeRequest<TRequest, TResponse>(string verb,
650 string requestUrl, TRequest obj, Action<TResponse> action)
651 {
652 // m_log.DebugFormat("[ASYNC REQUEST]: Starting {0} {1}", verb, requestUrl);
653
654 Type type = typeof(TRequest);
655
656 WebRequest request = WebRequest.Create(requestUrl);
657 WebResponse response = null;
658 TResponse deserial = default(TResponse);
659 XmlSerializer deserializer = new XmlSerializer(typeof(TResponse));
660
661 request.Method = verb;
662
663 if (verb == "POST")
664 {
665 request.ContentType = "text/xml";
666
667 MemoryStream buffer = new MemoryStream();
668
669 XmlWriterSettings settings = new XmlWriterSettings();
670 settings.Encoding = Encoding.UTF8;
671
672 using (XmlWriter writer = XmlWriter.Create(buffer, settings))
673 {
674 XmlSerializer serializer = new XmlSerializer(type);
675 serializer.Serialize(writer, obj);
676 writer.Flush();
677 }
678
679 int length = (int)buffer.Length;
680 request.ContentLength = length;
681
682 request.BeginGetRequestStream(delegate(IAsyncResult res)
683 {
684 Stream requestStream = request.EndGetRequestStream(res);
685
686 requestStream.Write(buffer.ToArray(), 0, length);
687 requestStream.Close();
688
689 request.BeginGetResponse(delegate(IAsyncResult ar)
690 {
691 response = request.EndGetResponse(ar);
692 Stream respStream = null;
693 try
694 {
695 respStream = response.GetResponseStream();
696 deserial = (TResponse)deserializer.Deserialize(
697 respStream);
698 }
699 catch (System.InvalidOperationException)
700 {
701 }
702 finally
703 {
704 // Let's not close this
705 //buffer.Close();
706 respStream.Close();
707 response.Close();
708 }
709
710 action(deserial);
711
712 }, null);
713 }, null);
714
715
716 return;
717 }
718
719 request.BeginGetResponse(delegate(IAsyncResult res2)
720 {
721 try
722 {
723 // If the server returns a 404, this appears to trigger a System.Net.WebException even though that isn't
724 // documented in MSDN
725 response = request.EndGetResponse(res2);
726
727 Stream respStream = null;
728 try
729 {
730 respStream = response.GetResponseStream();
731 deserial = (TResponse)deserializer.Deserialize(respStream);
732 }
733 catch (System.InvalidOperationException)
734 {
735 }
736 finally
737 {
738 respStream.Close();
739 response.Close();
740 }
741 }
742 catch (WebException e)
743 {
744 if (e.Status == WebExceptionStatus.ProtocolError)
745 {
746 if (e.Response is HttpWebResponse)
747 {
748 HttpWebResponse httpResponse = (HttpWebResponse)e.Response;
749
750 if (httpResponse.StatusCode != HttpStatusCode.NotFound)
751 {
752 // We don't appear to be handling any other status codes, so log these feailures to that
753 // people don't spend unnecessary hours hunting phantom bugs.
754 m_log.DebugFormat(
755 "[ASYNC REQUEST]: Request {0} {1} failed with unexpected status code {2}",
756 verb, requestUrl, httpResponse.StatusCode);
757 }
758 }
759 }
760 else
761 {
762 m_log.ErrorFormat("[ASYNC REQUEST]: Request {0} {1} failed with status {2} and message {3}", verb, requestUrl, e.Status, e.Message);
763 }
764 }
765 catch (Exception e)
766 {
767 m_log.ErrorFormat("[ASYNC REQUEST]: Request {0} {1} failed with exception {2}", verb, requestUrl, e);
768 }
769
770 // m_log.DebugFormat("[ASYNC REQUEST]: Received {0}", deserial.ToString());
771
772 try
773 {
774 action(deserial);
775 }
776 catch (Exception e)
777 {
778 m_log.ErrorFormat(
779 "[ASYNC REQUEST]: Request {0} {1} callback failed with exception {2}", verb, requestUrl, e);
780 }
781
782 }, null);
783 }
784 }
785
786 public static class SynchronousRestFormsRequester
787 {
788 private static readonly ILog m_log =
789 LogManager.GetLogger(
790 MethodBase.GetCurrentMethod().DeclaringType);
791
792 /// <summary>
793 /// Perform a synchronous REST request.
794 /// </summary>
795 /// <param name="verb"></param>
796 /// <param name="requestUrl"></param>
797 /// <param name="obj"> </param>
798 /// <returns></returns>
799 ///
800 /// <exception cref="System.Net.WebException">Thrown if we encounter a network issue while posting
801 /// the request. You'll want to make sure you deal with this as they're not uncommon</exception>
802 public static string MakeRequest(string verb, string requestUrl, string obj)
803 {
804 WebRequest request = WebRequest.Create(requestUrl);
805 request.Method = verb;
806 string respstring = String.Empty;
807
808 using (MemoryStream buffer = new MemoryStream())
809 {
810 if ((verb == "POST") || (verb == "PUT"))
811 {
812 request.ContentType = "text/www-form-urlencoded";
813
814 int length = 0;
815 using (StreamWriter writer = new StreamWriter(buffer))
816 {
817 writer.Write(obj);
818 writer.Flush();
819 }
820
821 length = (int)obj.Length;
822 request.ContentLength = length;
823
824 Stream requestStream = null;
825 try
826 {
827 requestStream = request.GetRequestStream();
828 requestStream.Write(buffer.ToArray(), 0, length);
829 }
830 catch (Exception e)
831 {
832 m_log.DebugFormat("[FORMS]: exception occured on sending request to {0}: " + e.ToString(), requestUrl);
833 }
834 finally
835 {
836 if (requestStream != null)
837 requestStream.Close();
838 }
839 }
840
841 try
842 {
843 using (WebResponse resp = request.GetResponse())
844 {
845 if (resp.ContentLength != 0)
846 {
847 Stream respStream = null;
848 try
849 {
850 respStream = resp.GetResponseStream();
851 using (StreamReader reader = new StreamReader(respStream))
852 {
853 respstring = reader.ReadToEnd();
854 }
855 }
856 catch (Exception e)
857 {
858 m_log.DebugFormat("[FORMS]: exception occured on receiving reply " + e.ToString());
859 }
860 finally
861 {
862 if (respStream != null)
863 respStream.Close();
864 }
865 }
866 }
867 }
868 catch (System.InvalidOperationException)
869 {
870 // This is what happens when there is invalid XML
871 m_log.DebugFormat("[FORMS]: InvalidOperationException on receiving request");
872 }
873 }
874 return respstring;
875 }
876 }
877
878 public class SynchronousRestObjectPoster
879 {
880 [Obsolete]
881 public static TResponse BeginPostObject<TRequest, TResponse>(string verb, string requestUrl, TRequest obj)
882 {
883 return SynchronousRestObjectRequester.MakeRequest<TRequest, TResponse>(verb, requestUrl, obj);
884 }
885 }
886
887 public class SynchronousRestObjectRequester
888 {
889 /// <summary>
890 /// Perform a synchronous REST request.
891 /// </summary>
892 /// <param name="verb"></param>
893 /// <param name="requestUrl"></param>
894 /// <param name="obj"> </param>
895 /// <returns></returns>
896 ///
897 /// <exception cref="System.Net.WebException">Thrown if we encounter a network issue while posting
898 /// the request. You'll want to make sure you deal with this as they're not uncommon</exception>
899 public static TResponse MakeRequest<TRequest, TResponse>(string verb, string requestUrl, TRequest obj)
900 {
901 Type type = typeof(TRequest);
902 TResponse deserial = default(TResponse);
903
904 WebRequest request = WebRequest.Create(requestUrl);
905 request.Method = verb;
906
907 if ((verb == "POST") || (verb == "PUT"))
908 {
909 request.ContentType = "text/xml";
910
911 MemoryStream buffer = new MemoryStream();
912
913 XmlWriterSettings settings = new XmlWriterSettings();
914 settings.Encoding = Encoding.UTF8;
915
916 using (XmlWriter writer = XmlWriter.Create(buffer, settings))
917 {
918 XmlSerializer serializer = new XmlSerializer(type);
919 serializer.Serialize(writer, obj);
920 writer.Flush();
921 }
922
923 int length = (int)buffer.Length;
924 request.ContentLength = length;
925
926 Stream requestStream = null;
927 try
928 {
929 requestStream = request.GetRequestStream();
930 requestStream.Write(buffer.ToArray(), 0, length);
931 }
932 catch (Exception)
933 {
934 return deserial;
935 }
936 finally
937 {
938 if (requestStream != null)
939 requestStream.Close();
940 }
941 }
942
943 try
944 {
945 using (WebResponse resp = request.GetResponse())
946 {
947 if (resp.ContentLength > 0)
948 {
949 Stream respStream = resp.GetResponseStream();
950 XmlSerializer deserializer = new XmlSerializer(typeof(TResponse));
951 deserial = (TResponse)deserializer.Deserialize(respStream);
952 respStream.Close();
953 }
954 }
955 }
956 catch (System.InvalidOperationException)
957 {
958 // This is what happens when there is invalid XML
959 }
960 return deserial;
961 }
962 }
628} 963}