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//-----------------------------------------------------------------------
// <copyright file="LinkedInClient.cs" company="Microsoft">
// Copyright (c) Microsoft. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace DotNetOpenAuth.AspNet.Clients {
using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.IO;
using System.Net;
using System.Net.Http;
using System.Threading;
using System.Threading.Tasks;
using System.Xml.Linq;
using DotNetOpenAuth.Messaging;
using DotNetOpenAuth.OAuth;
using DotNetOpenAuth.OAuth.ChannelElements;
using DotNetOpenAuth.OAuth.Messages;
using System.Collections.Specialized;
/// <summary>
/// Represents LinkedIn authentication client.
/// </summary>
public sealed class LinkedInClient : OAuthClient {
#region Constants and Fields
/// <summary>
/// Describes the OAuth service provider endpoints for LinkedIn.
/// </summary>
public static readonly ServiceProviderDescription LinkedInServiceDescription = new ServiceProviderDescription(
"https://api.linkedin.com/uas/oauth/requestToken",
"https://www.linkedin.com/uas/oauth/authenticate",
"https://api.linkedin.com/uas/oauth/accessToken");
#endregion
#region Constructors and Destructors
/// <summary>
/// Initializes a new instance of the <see cref="LinkedInClient"/> class.
/// </summary>
/// <param name="consumerKey">The consumer key.</param>
/// <param name="consumerSecret">The consumer secret.</param>
public LinkedInClient(string consumerKey, string consumerSecret)
: base("linkedIn", LinkedInServiceDescription, consumerKey, consumerSecret) {
}
#endregion
#region Methods
/// <summary>
/// Check if authentication succeeded after user is redirected back from the service provider.
/// </summary>
/// <param name="response">The response token returned from service provider</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>
/// Authentication result.
/// </returns>
[SuppressMessage("Microsoft.Design", "CA1031:DoNotCatchGeneralExceptionTypes",
Justification = "We don't care if the request fails.")]
protected override async Task<AuthenticationResult> VerifyAuthenticationCoreAsync(AccessTokenResponse response, CancellationToken cancellationToken = default(CancellationToken)) {
// See here for Field Selectors API http://developer.linkedin.com/docs/DOC-1014
const string ProfileRequestUrl = "https://api.linkedin.com/v1/people/~:(id,first-name,last-name,headline,industry,summary)";
var accessToken = response.AccessToken;
var authorizingHandler = this.WebWorker.CreateMessageHandler(accessToken);
try {
using (var httpClient = new HttpClient(authorizingHandler)) {
using (HttpResponseMessage profileResponse = await httpClient.GetAsync(ProfileRequestUrl, cancellationToken)) {
using (Stream responseStream = await profileResponse.Content.ReadAsStreamAsync()) {
XDocument document = LoadXDocumentFromStream(responseStream);
string userId = document.Root.Element("id").Value;
string firstName = document.Root.Element("first-name").Value;
string lastName = document.Root.Element("last-name").Value;
string userName = firstName + " " + lastName;
var extraData = new NameValueCollection();
extraData.Add("accesstoken", accessToken.Token);
extraData.Add("accesstokensecret", accessToken.Secret);
extraData.Add("name", userName);
extraData.AddDataIfNotEmpty(document, "headline");
extraData.AddDataIfNotEmpty(document, "summary");
extraData.AddDataIfNotEmpty(document, "industry");
return new AuthenticationResult(
isSuccessful: true,
provider: this.ProviderName,
providerUserId: userId,
userName: userName,
extraData: extraData);
}
}
}
} catch (Exception exception) {
return new AuthenticationResult(exception);
}
}
#endregion
}
}
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