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using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Net;
using System.ServiceModel;
using System.ServiceModel.Channels;
using System.ServiceModel.Security;
using System.Web.UI.WebControls;
using DotNetOpenAuth;
using DotNetOpenAuth.Messaging;
using DotNetOpenAuth.OAuth;
using DotNetOpenAuth.OAuth.ChannelElements;
using SampleServiceProvider;
/// <summary>
/// Sample consumer of our Service Provider sample's WCF service.
/// </summary>
public partial class SampleWcf : System.Web.UI.Page {
protected void Page_Load(object sender, EventArgs e) {
if (!IsPostBack) {
if (Session["WcfTokenManager"] != null) {
WebConsumer consumer = this.CreateConsumer();
var accessTokenMessage = consumer.ProcessUserAuthorization();
if (accessTokenMessage != null) {
Session["WcfAccessToken"] = accessTokenMessage.AccessToken;
authorizationLabel.Text = "Authorized! Access token: " + accessTokenMessage.AccessToken;
}
}
}
}
protected void getAuthorizationButton_Click(object sender, EventArgs e) {
WebConsumer consumer = this.CreateConsumer();
UriBuilder callback = new UriBuilder(Request.Url);
callback.Query = null;
string[] scopes = (from item in scopeList.Items.OfType<ListItem>()
where item.Selected
select item.Value).ToArray();
string scope = string.Join("|", scopes);
var requestParams = new Dictionary<string, string> {
{ "scope", scope },
};
var response = consumer.PrepareRequestUserAuthorization(callback.Uri, requestParams, null);
consumer.Channel.Send(response);
}
protected void getNameButton_Click(object sender, EventArgs e) {
try {
nameLabel.Text = CallService(client => client.GetName());
} catch (SecurityAccessDeniedException) {
nameLabel.Text = "Access denied!";
}
}
protected void getAgeButton_Click(object sender, EventArgs e) {
try {
int? age = CallService(client => client.GetAge());
ageLabel.Text = age.HasValue ? age.Value.ToString(CultureInfo.CurrentCulture) : "not available";
} catch (SecurityAccessDeniedException) {
ageLabel.Text = "Access denied!";
}
}
protected void getFavoriteSites_Click(object sender, EventArgs e) {
try {
string[] favoriteSites = CallService(client => client.GetFavoriteSites());
favoriteSitesLabel.Text = string.Join(", ", favoriteSites);
} catch (SecurityAccessDeniedException) {
favoriteSitesLabel.Text = "Access denied!";
}
}
private T CallService<T>(Func<DataApiClient, T> predicate) {
DataApiClient client = new DataApiClient();
var serviceEndpoint = new MessageReceivingEndpoint(client.Endpoint.Address.Uri, HttpDeliveryMethods.AuthorizationHeaderRequest | HttpDeliveryMethods.PostRequest);
var accessToken = Session["WcfAccessToken"] as string;
if (accessToken == null) {
throw new InvalidOperationException("No access token!");
}
WebConsumer consumer = this.CreateConsumer();
WebRequest httpRequest = consumer.PrepareAuthorizedRequest(serviceEndpoint, accessToken);
HttpRequestMessageProperty httpDetails = new HttpRequestMessageProperty();
httpDetails.Headers[HttpRequestHeader.Authorization] = httpRequest.Headers[HttpRequestHeader.Authorization];
using (OperationContextScope scope = new OperationContextScope(client.InnerChannel)) {
OperationContext.Current.OutgoingMessageProperties[HttpRequestMessageProperty.Name] = httpDetails;
return predicate(client);
}
}
private WebConsumer CreateConsumer() {
string consumerKey = "sampleconsumer";
string consumerSecret = "samplesecret";
var tokenManager = Session["WcfTokenManager"] as InMemoryTokenManager;
if (tokenManager == null) {
tokenManager = new InMemoryTokenManager(consumerKey, consumerSecret);
Session["WcfTokenManager"] = tokenManager;
}
MessageReceivingEndpoint oauthEndpoint = new MessageReceivingEndpoint(
new Uri("http://localhost:65169/ServiceProvider/OAuth.ashx"),
HttpDeliveryMethods.PostRequest);
WebConsumer consumer = new WebConsumer(
new ServiceProviderDescription {
RequestTokenEndpoint = oauthEndpoint,
UserAuthorizationEndpoint = oauthEndpoint,
AccessTokenEndpoint = oauthEndpoint,
TamperProtectionElements = new DotNetOpenAuth.Messaging.ITamperProtectionChannelBindingElement[] {
new HmacSha1SigningBindingElement(),
},
},
tokenManager) {
ConsumerKey = consumerKey,
};
return consumer;
}
}
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