438 lines
13 KiB
C#
438 lines
13 KiB
C#
//
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// System.ServiceModel.MessageHeader.cs
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//
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// Author: Duncan Mak (duncan@novell.com)
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//
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// Copyright (C) 2005 Novell, Inc (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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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.IO;
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using System.Runtime.Serialization;
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using System.ServiceModel;
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using System.Xml;
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namespace System.ServiceModel.Channels
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{
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public sealed class MessageHeaders : IEnumerable<MessageHeaderInfo>, IEnumerable
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{
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static readonly XmlReaderSettings reader_settings;
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static MessageHeaders ()
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{
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reader_settings = new XmlReaderSettings ();
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reader_settings.ConformanceLevel = ConformanceLevel.Fragment;
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}
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List<MessageHeaderInfo> l;
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Dictionary<Type, XmlObjectSerializer> serializers =
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new Dictionary<Type, XmlObjectSerializer> ();
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MessageVersion version;
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public MessageHeaders (MessageHeaders collection)
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: this (collection.MessageVersion)
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{
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CopyHeadersFrom (collection);
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}
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public MessageHeaders (MessageVersion version)
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: this (version, 10) // let's say 10 is the initial size
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{
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}
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public MessageHeaders (MessageVersion version, int initialSize)
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{
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this.version = version;
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l = new List<MessageHeaderInfo> (initialSize);
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}
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public void Add (MessageHeader header)
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{
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l.Add (header);
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}
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public void CopyHeaderFrom (Message message, int headerIndex)
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{
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CopyHeaderFrom (message.Headers, headerIndex);
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}
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public void Clear ()
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{
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l.Clear ();
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}
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public void CopyHeaderFrom (MessageHeaders collection, int headerIndex)
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{
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l.Add (collection [headerIndex]);
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}
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public void CopyHeadersFrom (Message message)
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{
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CopyHeadersFrom (message.Headers);
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}
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public void CopyHeadersFrom (MessageHeaders collection)
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{
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foreach (MessageHeaderInfo h in collection)
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l.Add (h);
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}
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public void CopyTo (MessageHeaderInfo [] array, int index)
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{
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l.CopyTo (array, index);
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}
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public int FindHeader (string name, string ns)
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{
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return FindHeader (name, ns, null);
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}
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bool HasActor (string actor, string [] candidates)
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{
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foreach (string c in candidates)
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if (c == actor)
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return true;
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return false;
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}
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public int FindHeader (string name, string ns, params string [] actors)
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{
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int found = 0;
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int retval = -1;
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for (int i = 0; i < l.Count; i++) {
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MessageHeaderInfo info = l [i];
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if (info.Name == name && info.Namespace == ns) {
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if (found > 0)
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throw new MessageHeaderException ("Found multiple matching headers.");
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// When no actors are passed, it never
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// matches such header that has an
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// Actor.
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if (actors == null && info.Actor == String.Empty ||
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actors != null && HasActor (info.Actor, actors)) {
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retval = i;
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found++;
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}
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}
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}
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return retval;
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}
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public IEnumerator<MessageHeaderInfo> GetEnumerator ()
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{
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return l.GetEnumerator ();
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}
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XmlObjectSerializer GetSerializer<T> (int headerIndex)
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{
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if (!serializers.ContainsKey (typeof (T)))
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serializers [typeof (T)] = new DataContractSerializer (typeof (T), this [headerIndex].Name, this [headerIndex].Namespace);
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return serializers [typeof (T)];
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}
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public T GetHeader<T> (int index)
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{
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if (l.Count <= index)
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throw new ArgumentOutOfRangeException ("index");
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var dmh = l [index] as MessageHeader.DefaultMessageHeader;
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if (dmh != null && dmh.Value != null && typeof (T).IsAssignableFrom (dmh.Value.GetType ()))
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return (T) dmh.Value;
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if (typeof (T) == typeof (EndpointAddress)) {
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XmlDictionaryReader r = GetReaderAtHeader (index);
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return r.NodeType != XmlNodeType.Element ? default (T) : (T) (object) EndpointAddress.ReadFrom (r);
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}
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else
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return GetHeader<T> (index, GetSerializer<T> (index));
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}
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public T GetHeader<T> (int index, XmlObjectSerializer serializer)
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{
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if (serializer == null)
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throw new ArgumentNullException ("serializer");
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XmlDictionaryReader r = GetReaderAtHeader (index);
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return (T) serializer.ReadObject (r, false);
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}
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public T GetHeader<T> (string name, string ns)
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{
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return GetHeader<T> (name, ns, (string []) null);
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}
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public T GetHeader<T> (string name, string ns, params string [] actors)
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{
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int idx = FindHeader (name, ns, actors);
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if (idx == -1)
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throw new MessageHeaderException (String.Format ("Header '{0}:{1}' was not found for the argument actors: {2}", ns, name, actors == null ? "(null)" : String.Join (",", actors)));
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return GetHeader<T> (idx);
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}
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public T GetHeader<T> (string name, string ns, XmlObjectSerializer serializer)
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{
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if (serializer == null)
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throw new ArgumentNullException ("serializer");
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int idx = FindHeader (name, ns);
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if (idx < 0)
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throw new MessageHeaderException (String.Format ("Header '{0}:{1}' was not found", ns, name));
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return GetHeader<T> (idx, serializer);
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}
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public XmlDictionaryReader GetReaderAtHeader (int headerIndex)
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{
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if (headerIndex >= l.Count)
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throw new ArgumentOutOfRangeException (String.Format ("Index is out of range. Current header count is {0}", l.Count));
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MessageHeader item = (MessageHeader) l [headerIndex];
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XmlReader reader =
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item is MessageHeader.XmlMessageHeader ?
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((MessageHeader.XmlMessageHeader) item).CreateReader () :
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XmlReader.Create (
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new StringReader (item.ToString ()),
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reader_settings);
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reader.MoveToContent ();
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XmlDictionaryReader dr = XmlDictionaryReader.CreateDictionaryReader (reader);
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dr.MoveToContent ();
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return dr;
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}
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public bool HaveMandatoryHeadersBeenUnderstood ()
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{
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throw new NotImplementedException ();
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}
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public bool HaveMandatoryHeadersBeenUnderstood (params string [] actors)
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{
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throw new NotImplementedException ();
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}
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public void Insert (int headerIndex, MessageHeader header)
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{
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l.Insert (headerIndex, header);
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}
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public void RemoveAll (string name, string ns)
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{
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// Shuffle all the ones we want to keep to the start of the list
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int j = 0;
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for (int i = 0; i < l.Count; i++) {
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if (l[i].Name != name || l[i].Namespace != ns) {
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l [j++] = l[i];
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}
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}
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// Trim the extra elements off the end of the list.
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int count = l.Count - j;
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for (int i = 0; i < count; i++)
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l.RemoveAt (l.Count - 1);
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}
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public void RemoveAt (int headerIndex)
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{
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l.RemoveAt (headerIndex);
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}
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IEnumerator IEnumerable.GetEnumerator ()
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{
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return ((IEnumerable) l).GetEnumerator ();
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}
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public void WriteHeader (int headerIndex, XmlDictionaryWriter writer)
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{
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if (version.Envelope == EnvelopeVersion.None)
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return;
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WriteStartHeader (headerIndex, writer);
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WriteHeaderContents (headerIndex, writer);
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writer.WriteEndElement ();
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}
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public void WriteHeader (int headerIndex, XmlWriter writer)
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{
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WriteHeader (headerIndex, XmlDictionaryWriter.CreateDictionaryWriter (writer));
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}
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public void WriteHeaderContents (int headerIndex, XmlDictionaryWriter writer)
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{
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if (headerIndex > l.Count)
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throw new ArgumentOutOfRangeException ("There is no header at position " + headerIndex + ".");
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MessageHeader h = l [headerIndex] as MessageHeader;
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h.WriteHeaderContents (writer, version);
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}
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public void WriteHeaderContents (int headerIndex, XmlWriter writer)
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{
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WriteHeaderContents (headerIndex, XmlDictionaryWriter.CreateDictionaryWriter (writer));
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}
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public void WriteStartHeader (int headerIndex, XmlDictionaryWriter writer)
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{
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if (headerIndex > l.Count)
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throw new ArgumentOutOfRangeException ("There is no header at position " + headerIndex + ".");
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MessageHeader h = l [headerIndex] as MessageHeader;
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h.WriteStartHeader (writer, version);
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}
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public void WriteStartHeader (int headerIndex, XmlWriter writer)
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{
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WriteStartHeader (headerIndex, XmlDictionaryWriter.CreateDictionaryWriter (writer));
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}
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public string Action {
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get {
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int idx = FindHeader ("Action", version.Addressing.Namespace);
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return idx < 0 ? null : GetHeader<string> (idx);
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}
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set {
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RemoveAll ("Action", version.Addressing.Namespace);
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if (value != null)
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Add (MessageHeader.CreateHeader ("Action", version.Addressing.Namespace, value, true));
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}
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}
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public int Count {
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get { return l.Count; }
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}
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void AddEndpointAddressHeader (string name, string ns, EndpointAddress address)
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{
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if (address == null)
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return;
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if (MessageVersion.Addressing.Equals (AddressingVersion.WSAddressing10))
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Add (MessageHeader.CreateHeader (name, ns, EndpointAddress10.FromEndpointAddress (address)));
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#if !MOBILE
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else if (MessageVersion.Addressing.Equals (AddressingVersion.WSAddressingAugust2004))
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Add (MessageHeader.CreateHeader (name, ns, EndpointAddressAugust2004.FromEndpointAddress (address)));
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#endif
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else
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throw new InvalidOperationException ("WS-Addressing header is not allowed for AddressingVersion.None");
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}
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public EndpointAddress FaultTo {
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get {
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int idx = FindHeader ("FaultTo", version.Addressing.Namespace);
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return idx < 0 ? null : GetHeader<EndpointAddress> (idx);
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}
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set {
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RemoveAll ("FaultTo", version.Addressing.Namespace);
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if (value != null)
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AddEndpointAddressHeader ("FaultTo", version.Addressing.Namespace, value);
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}
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}
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public EndpointAddress From {
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get {
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int idx = FindHeader ("From", version.Addressing.Namespace);
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return idx < 0 ? null : GetHeader<EndpointAddress> (idx);
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}
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set {
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RemoveAll ("From", version.Addressing.Namespace);
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if (value != null)
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AddEndpointAddressHeader ("From", version.Addressing.Namespace, value);
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}
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}
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public MessageHeaderInfo this [int index] {
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get { return l [index]; }
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}
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public UniqueId MessageId {
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get {
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int idx = FindHeader ("MessageID", version.Addressing.Namespace);
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return idx < 0 ? null : new UniqueId (GetHeader<string> (idx));
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}
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set {
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if (version.Addressing == AddressingVersion.None && value != null)
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throw new InvalidOperationException ("WS-Addressing header is not allowed for AddressingVersion.None");
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RemoveAll ("MessageID", version.Addressing.Namespace);
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if (value != null)
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Add (MessageHeader.CreateHeader ("MessageID", version.Addressing.Namespace, value));
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}
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}
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public MessageVersion MessageVersion { get { return version; } }
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public UniqueId RelatesTo {
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get {
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int idx = FindHeader ("RelatesTo", version.Addressing.Namespace);
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return idx < 0 ? null : new UniqueId (GetHeader<string> (idx));
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}
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set {
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if (version.Addressing == AddressingVersion.None && value != null)
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throw new InvalidOperationException ("WS-Addressing header is not allowed for AddressingVersion.None");
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RemoveAll ("MessageID", version.Addressing.Namespace);
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if (value != null)
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Add (MessageHeader.CreateHeader ("RelatesTo", version.Addressing.Namespace, value));
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}
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}
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public EndpointAddress ReplyTo {
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get {
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int idx = FindHeader ("ReplyTo", version.Addressing.Namespace);
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return idx < 0 ? null : GetHeader<EndpointAddress> (idx);
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}
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set {
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RemoveAll ("ReplyTo", version.Addressing.Namespace);
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if (value != null)
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AddEndpointAddressHeader ("ReplyTo", version.Addressing.Namespace, value);
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}
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}
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public Uri To {
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get {
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int idx = FindHeader ("To", version.Addressing.Namespace);
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//FIXME: return idx < 0 ? null : GetHeader<Uri> (idx);
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return idx < 0 ? null : new Uri (GetHeader<string> (idx));
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}
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set {
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RemoveAll ("To", version.Addressing.Namespace);
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if (value != null)
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Add (MessageHeader.CreateHeader ("To", version.Addressing.Namespace, value.AbsoluteUri, true));
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}
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}
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[MonoTODO]
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public UnderstoodHeaders UnderstoodHeaders {
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get { throw new NotImplementedException (); }
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}
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public void SetAction (XmlDictionaryString action)
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{
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if (action == null)
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Action = null;
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else
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Action = action.Value;
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}
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}
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}
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