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//------------------------------------------------------------------------------
// <copyright file="ContractReference.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web.Services.Discovery {
using System;
using System.Net;
using System.Xml.Serialization;
using System.Web.Services.Description;
using System.IO;
using System.Xml;
using System.Xml.Schema;
using System.Web.Services.Protocols;
using System.Text;
using System.Collections;
using System.Threading;
using System.Diagnostics;
using System.Web.Services.Diagnostics;
/// <include file='doc\ContractReference.uex' path='docs/doc[@for="ContractReference"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
[XmlRoot("contractRef", Namespace = ContractReference.Namespace)]
public class ContractReference : DiscoveryReference {
/// <include file='doc\contractreference.uex' path='docs/doc[@for="contractreference.namespace"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public const string Namespace = "http://schemas.xmlsoap.org/disco/scl/";
private string docRef;
private string reference;
/// <include file='doc\ContractReference.uex' path='docs/doc[@for="ContractReference.ContractReference"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public ContractReference() {
}
/// <include file='doc\ContractReference.uex' path='docs/doc[@for="ContractReference.ContractReference1"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public ContractReference(string href) {
Ref = href;
}
/// <include file='doc\ContractReference.uex' path='docs/doc[@for="ContractReference.ContractReference2"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public ContractReference(string href, string docRef) {
Ref = href;
DocRef = docRef;
}
/// <include file='doc\ContractReference.uex' path='docs/doc[@for="ContractReference.Ref"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
[XmlAttribute("ref")]
public string Ref {
get {
return reference;
}
set {
reference = value;
}
}
/// <include file='doc\ContractReference.uex' path='docs/doc[@for="ContractReference.DocRef"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
[XmlAttribute("docRef")]
public string DocRef {
get {
return docRef;
}
set {
docRef = value;
}
}
/// <include file='doc\ContractReference.uex' path='docs/doc[@for="ContractReference.Url"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
[XmlIgnore]
public override string Url {
get {
return Ref;
}
set {
Ref = value;
}
}
internal override void LoadExternals(Hashtable loadedExternals) {
ServiceDescription contract = null;
try {
contract = Contract;
}
catch (Exception e) {
if (e is ThreadAbortException || e is StackOverflowException || e is OutOfMemoryException) {
throw;
}
// don't let the exception out - keep going. Just add it to the list of errors.
ClientProtocol.Errors[Url] = e;
if (Tracing.On) Tracing.ExceptionCatch(TraceEventType.Warning, this, "LoadExternals", e);
}
if (contract != null) {
foreach (XmlSchema schema in Contract.Types.Schemas) {
SchemaReference.LoadExternals(schema, Url, ClientProtocol, loadedExternals);
}
}
}
/// <include file='doc\ContractReference.uex' path='docs/doc[@for="ContractReference.Contract"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
[XmlIgnore]
public ServiceDescription Contract {
get {
if (ClientProtocol == null)
throw new InvalidOperationException(Res.GetString(Res.WebMissingClientProtocol));
object document = ClientProtocol.Documents[Url];
if (document == null) {
Resolve();
document = ClientProtocol.Documents[Url];
}
ServiceDescription contract = document as ServiceDescription;
if (contract == null) {
throw new InvalidOperationException(Res.GetString(Res.WebInvalidDocType,
typeof(ServiceDescription).FullName,
document == null ? string.Empty : document.GetType().FullName,
Url));
}
return contract;
}
}
/// <include file='doc\ContractReference.uex' path='docs/doc[@for="ContractReference.DefaultFilename"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
[XmlIgnore]
public override string DefaultFilename {
get {
string fileName = MakeValidFilename(Contract.Name);
if (fileName == null || fileName.Length == 0)
fileName = FilenameFromUrl(Url);
return Path.ChangeExtension(fileName, ".wsdl");
}
}
/// <include file='doc\ContractReference.uex' path='docs/doc[@for="ContractReference.WriteDocument"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public override void WriteDocument(object document, Stream stream) {
((ServiceDescription) document).Write(new StreamWriter(stream, new UTF8Encoding(false)));
}
/// <include file='doc\ContractReference.uex' path='docs/doc[@for="ContractReference.ReadDocument"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public override object ReadDocument(Stream stream) {
return ServiceDescription.Read(stream, true);
}
/// <include file='doc\ContractReference.uex' path='docs/doc[@for="ContractReference.Resolve"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
protected internal override void Resolve(string contentType, Stream stream) {
if (ContentType.IsHtml(contentType))
throw new InvalidContentTypeException(Res.GetString(Res.WebInvalidContentType, contentType), contentType);
ServiceDescription serviceDescription = ClientProtocol.Documents[Url] as ServiceDescription;
if ( serviceDescription == null ) {
serviceDescription = ServiceDescription.Read(stream, true);
serviceDescription.RetrievalUrl = Url;
ClientProtocol.Documents[Url] = serviceDescription;
}
ClientProtocol.References[Url] = this;
ArrayList importUrls = new ArrayList();
foreach (Import import in serviceDescription.Imports)
if (import.Location != null)
importUrls.Add(import.Location);
foreach (XmlSchema schema in serviceDescription.Types.Schemas) {
foreach (XmlSchemaExternal external in schema.Includes) {
if (external.SchemaLocation != null && external.SchemaLocation.Length > 0) {
importUrls.Add(external.SchemaLocation);
}
}
}
foreach (string urlFromImport in importUrls) {
// make the (possibly) relative Uri in the contract fully qualified with respect to the contract URL
string importUrl = UriToString(Url, urlFromImport);
if ( ClientProtocol.Documents[importUrl] != null ) {
continue;
}
string oldUrl = importUrl;
try {
stream = ClientProtocol.Download(ref importUrl, ref contentType);
try {
//Proceed only if not been here before
if ( ClientProtocol.Documents[importUrl] == null ) {
XmlTextReader reader = new XmlTextReader(new StreamReader(stream, RequestResponseUtils.GetEncoding(contentType)));
reader.WhitespaceHandling = WhitespaceHandling.Significant;
reader.XmlResolver = null;
reader.DtdProcessing = DtdProcessing.Prohibit;
//Resolve on WSDL and XSD will go recursivelly
if (ServiceDescription.CanRead(reader)) {
ServiceDescription doc = ServiceDescription.Read(reader, true);
doc.RetrievalUrl = importUrl;
ClientProtocol.Documents[importUrl] = doc;
ContractReference contractReference = new ContractReference(importUrl, null);
contractReference.ClientProtocol = ClientProtocol;
try {
contractReference.Resolve(contentType, stream);
}
catch (Exception e) {
if (e is ThreadAbortException || e is StackOverflowException || e is OutOfMemoryException) {
throw;
}
contractReference.Url = oldUrl;
if (Tracing.On) Tracing.ExceptionCatch(TraceEventType.Warning, this, "Resolve", e);
}
}
else if (reader.IsStartElement("schema", XmlSchema.Namespace)) {
ClientProtocol.Documents[importUrl] = XmlSchema.Read(reader, null);
SchemaReference schemaReference = new SchemaReference(importUrl);
schemaReference.ClientProtocol = ClientProtocol;
try {
schemaReference.Resolve(contentType, stream);
}
catch (Exception e) {
if (e is ThreadAbortException || e is StackOverflowException || e is OutOfMemoryException) {
throw;
}
schemaReference.Url = oldUrl;
if (Tracing.On) Tracing.ExceptionCatch(TraceEventType.Warning, this, "Resolve", e);
}
}
// If it's not XML, or we don't know what kind of XML it is, skip the file. The user
// will have to download the dependent file(s) manually, but at least we will continue
// to discover files instead of throwing an exception.
}
}
finally {
stream.Close();
}
}
catch (Exception e) {
if (e is ThreadAbortException || e is StackOverflowException || e is OutOfMemoryException) {
throw;
}
throw new InvalidDocumentContentsException(Res.GetString(Res.TheWSDLDocumentContainsLinksThatCouldNotBeResolved, importUrl), e);
}
}
}
}
}
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