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using System;
using System.Collections.Generic;
using System.Text;
using System.Xml.XPath;
using DotNetOpenId.RelyingParty;
namespace DotNetOpenId.Yadis {
class XrdElement : XrdsNode {
public XrdElement(XPathNavigator xrdElement, XrdsDocument parent) :
base(xrdElement, parent) {
}
public IEnumerable<ServiceElement> Services {
get {
// We should enumerate them in priority order
List<ServiceElement> services = new List<ServiceElement>();
foreach (XPathNavigator node in Node.Select("xrd:Service", XmlNamespaceResolver)) {
services.Add(new ServiceElement(node.Clone(), this));
}
services.Sort();
return services;
}
}
int XriResolutionStatusCode {
get {
var n = Node.SelectSingleNode("xrd:Status", XmlNamespaceResolver);
string codeString;
if (n == null || string.IsNullOrEmpty(codeString = n.GetAttribute("code", ""))) {
throw new OpenIdException(Strings.XriResolutionStatusMissing);
}
int code;
if (!int.TryParse(codeString, out code) || code < 100 || code > 399) {
throw new OpenIdException(Strings.XriResolutionStatusMissing);
}
return code;
}
}
public bool IsXriResolutionSuccessful {
get {
return XriResolutionStatusCode == 100;
}
}
public string CanonicalID {
get {
var n = Node.SelectSingleNode("xrd:CanonicalID", XmlNamespaceResolver);
return n != null ? n.Value : null;
}
}
public bool IsCanonicalIdVerified {
get {
var n = Node.SelectSingleNode("xrd:Status", XmlNamespaceResolver);
return n != null && string.Equals(n.GetAttribute("cid", ""), "verified", StringComparison.Ordinal);
}
}
IEnumerable<ServiceElement> searchForServiceTypeUris(Util.Func<Protocol, string> p) {
var xpath = new StringBuilder();
xpath.Append("xrd:Service[");
foreach (var protocol in Protocol.AllVersions) {
string typeUri = p(protocol);
if (typeUri == null) continue;
xpath.Append("xrd:Type/text()='");
xpath.Append(typeUri);
xpath.Append("' or ");
}
xpath.Length -= 4;
xpath.Append("]");
var services = new List<ServiceElement>();
foreach (XPathNavigator service in Node.Select(xpath.ToString(), XmlNamespaceResolver)) {
services.Add(new ServiceElement(service.Clone(), this));
}
// Put the services in their own defined priority order
services.Sort();
return services;
}
/// <summary>
/// Returns services for OP Identifiers.
/// </summary>
public IEnumerable<ServiceElement> OpenIdProviderIdentifierServices {
get { return searchForServiceTypeUris(p => p.OPIdentifierServiceTypeURI); }
}
/// <summary>
/// Returns services for Claimed Identifiers.
/// </summary>
public IEnumerable<ServiceElement> OpenIdClaimedIdentifierServices {
get { return searchForServiceTypeUris(p => p.ClaimedIdentifierServiceTypeURI); }
}
public IEnumerable<ServiceElement> OpenIdRelyingPartyReturnToServices {
get { return searchForServiceTypeUris(p => p.RPReturnToTypeURI); }
}
/// <summary>
/// An enumeration of all Service/URI elements, sorted in priority order.
/// </summary>
public IEnumerable<UriElement> ServiceUris {
get {
foreach (ServiceElement service in Services) {
foreach (UriElement uri in service.UriElements) {
yield return uri;
}
}
}
}
}
}
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