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//
// System.Web.Services.Protocols.WebServiceHelper.cs
//
// Author:
// Lluis Sanchez Gual (lluis@ximian.com)
//
// Copyright (C) Ximian, Inc. 2003
//
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.IO;
using System.Net;
using System.Text;
using System.Xml;
using System.Xml.Schema;
using System.Xml.Serialization;
using System.Web.Services.Description;
namespace System.Web.Services.Protocols
{
internal class WebServiceHelper
{
public const string SoapEnvelopeNamespace = "http://schemas.xmlsoap.org/soap/envelope/";
static readonly char [] trimChars = { '"', '\'' };
static readonly bool prettyXml;
static WebServiceHelper ()
{
string pxml = Environment.GetEnvironmentVariable ("MONO_WEBSERVICES_PRETTYXML");
prettyXml = (pxml != null && pxml != "no");
}
public static XmlTextWriter CreateXmlWriter (Stream s)
{
// What a waste of UTF8encoders, but it has to be thread safe.
XmlTextWriter xtw = new XmlTextWriter (s, new UTF8Encoding (false));
if (prettyXml)
xtw.Formatting = Formatting.Indented;
return xtw;
}
public static Encoding GetContentEncoding (string cts, out string content_type)
{
string encoding;
encoding = "utf-8";
int start = 0;
int idx = cts.IndexOf (';');
if (idx == -1)
content_type = cts;
else
content_type = cts.Substring (0, idx);
content_type = content_type.Trim ();
for (start = idx + 1; idx != -1;)
{
idx = cts.IndexOf (";", start);
string body;
if (idx == -1)
body = cts.Substring (start);
else
{
body = cts.Substring (start, idx - start);
start = idx + 1;
}
body = body.Trim ();
if (body.StartsWith ("charset="))
{
encoding = body.Substring (8);
encoding = encoding.TrimStart (trimChars).TrimEnd (trimChars);
}
}
return Encoding.GetEncoding (encoding);
}
public static void WriteSoapMessage (XmlTextWriter xtw, SoapTypeStubInfo info, SoapBindingUse methodUse, XmlSerializer bodySerializer, object bodyContent, SoapHeaderCollection headers)
{
xtw.WriteStartDocument ();
xtw.WriteStartElement ("soap", "Envelope", WebServiceHelper.SoapEnvelopeNamespace);
xtw.WriteAttributeString ("xmlns", "xsi", null, XmlSchema.InstanceNamespace);
xtw.WriteAttributeString ("xmlns", "xsd", null, XmlSchema.Namespace);
// Serialize headers
if (headers != null)
{
foreach (SoapHeader header in headers)
{
XmlSerializer ser = info.GetHeaderSerializer (header.GetType(), methodUse);
xtw.WriteStartElement ("soap", "Header", WebServiceHelper.SoapEnvelopeNamespace);
ser.Serialize (xtw, header);
xtw.WriteEndElement ();
}
}
// Serialize body
xtw.WriteStartElement ("soap", "Body", WebServiceHelper.SoapEnvelopeNamespace);
bodySerializer.Serialize (xtw, bodyContent);
xtw.WriteEndElement ();
xtw.WriteEndElement ();
xtw.Flush ();
}
public static void ReadSoapMessage (XmlTextReader xmlReader, SoapTypeStubInfo typeStubInfo, SoapBindingUse methodUse, XmlSerializer bodySerializer, out object body, out SoapHeaderCollection headers)
{
xmlReader.MoveToContent ();
xmlReader.ReadStartElement ("Envelope", WebServiceHelper.SoapEnvelopeNamespace);
headers = ReadHeaders (typeStubInfo, methodUse, xmlReader);
xmlReader.MoveToContent ();
xmlReader.ReadStartElement ("Body", WebServiceHelper.SoapEnvelopeNamespace);
xmlReader.MoveToContent ();
if (xmlReader.LocalName == "Fault" && xmlReader.NamespaceURI == SoapEnvelopeNamespace)
bodySerializer = Fault.Serializer;
body = bodySerializer.Deserialize (xmlReader);
}
static SoapHeaderCollection ReadHeaders (SoapTypeStubInfo typeStubInfo, SoapBindingUse methodUse, XmlTextReader xmlReader)
{
SoapHeaderCollection headers = new SoapHeaderCollection ();
while (! (xmlReader.NodeType == XmlNodeType.Element && xmlReader.LocalName == "Body" && xmlReader.NamespaceURI == WebServiceHelper.SoapEnvelopeNamespace))
{
if (xmlReader.NodeType == XmlNodeType.Element && xmlReader.LocalName == "Header"
&& xmlReader.NamespaceURI == WebServiceHelper.SoapEnvelopeNamespace && !xmlReader.IsEmptyElement)
{
xmlReader.ReadStartElement ();
xmlReader.MoveToContent ();
XmlQualifiedName qname = new XmlQualifiedName (xmlReader.LocalName, xmlReader.NamespaceURI);
XmlSerializer headerSerializer = typeStubInfo.GetHeaderSerializer (qname, methodUse);
if (headerSerializer != null)
{
SoapHeader header = (SoapHeader) headerSerializer.Deserialize (xmlReader);
headers.Add (header);
}
else
{
while (xmlReader.NodeType == XmlNodeType.EndElement)
xmlReader.Skip (); // TODO: Check if the header has mustUnderstand=true
xmlReader.Skip ();
}
}
else
xmlReader.Skip ();
}
return headers;
}
public static void InvalidOperation (string message, WebResponse response, Encoding enc)
{
if (response == null)
throw new InvalidOperationException (message);
if (enc == null)
enc = Encoding.UTF8;
StringBuilder sb = new StringBuilder ();
sb.Append (message);
sb.Append ("\r\nResponse error message:\r\n--\r\n");
try {
StreamReader resp = new StreamReader (response.GetResponseStream (), enc);
sb.Append (resp.ReadToEnd ());
} catch (Exception) {
}
throw new InvalidOperationException (sb.ToString ());
}
}
}
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