1 files changed, 95 insertions, 0 deletions
diff --git a/src/DotNetOpenAuth.Web/Clients/OAuth/LinkedInClient.cs b/src/DotNetOpenAuth.Web/Clients/OAuth/LinkedInClient.cs
new file mode 100644
index 0000000..ddbc39f
--- /dev/null
+++ b/src/DotNetOpenAuth.Web/Clients/OAuth/LinkedInClient.cs
@@ -0,0 +1,95 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Net;
+using System.Xml.Linq;
+using DotNetOpenAuth.Messaging;
+using DotNetOpenAuth.OAuth;
+using DotNetOpenAuth.OAuth.ChannelElements;
+using DotNetOpenAuth.OAuth.Messages;
+
+namespace DotNetOpenAuth.Web.Clients
+{
+    /// <summary>
+    /// Represents LinkedIn authentication client.
+    /// </summary>
+    internal sealed class LinkedInClient : OAuthClient
+    {
+        public static readonly ServiceProviderDescription LinkedInServiceDescription = new ServiceProviderDescription
+        {
+            RequestTokenEndpoint = new MessageReceivingEndpoint("https://api.linkedin.com/uas/oauth/requestToken", HttpDeliveryMethods.GetRequest | HttpDeliveryMethods.AuthorizationHeaderRequest),
+            UserAuthorizationEndpoint = new MessageReceivingEndpoint("https://www.linkedin.com/uas/oauth/authenticate", HttpDeliveryMethods.GetRequest | HttpDeliveryMethods.AuthorizationHeaderRequest),
+            AccessTokenEndpoint = new MessageReceivingEndpoint("https://api.linkedin.com/uas/oauth/accessToken", HttpDeliveryMethods.GetRequest | HttpDeliveryMethods.AuthorizationHeaderRequest),
+            TamperProtectionElements = new ITamperProtectionChannelBindingElement[] { new HmacSha1SigningBindingElement() },
+        };
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="LinkedInClient"/> class.
+        /// </summary>
+        /// <param name="consumerKey">The LinkedIn app's consumer key.</param>
+        /// <param name="consumerSecret">The LinkedIn app's consumer secret.</param>
+        [System.Diagnostics.CodeAnalysis.SuppressMessage(
+            "Microsoft.Reliability",
+            "CA2000:Dispose objects before losing scope",
+            Justification = "We can't dispose the object because we still need it through the app lifetime.")]
+        public LinkedInClient(string consumerKey, string consumerSecret) :
+            base("linkedIn", LinkedInServiceDescription, consumerKey, consumerSecret)
+        {
+        }
+
+        /// <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>
+        /// <returns>
+        /// Authentication result.
+        /// </returns>
+        [System.Diagnostics.CodeAnalysis.SuppressMessage(
+            "Microsoft.Design",
+            "CA1031:DoNotCatchGeneralExceptionTypes",
+            Justification = "We don't care if the request fails.")]
+        protected override AuthenticationResult VerifyAuthenticationCore(AuthorizedTokenResponse response)
+        {
+            // See here for Field Selectors API http://developer.linkedin.com/docs/DOC-1014
+            const string profileRequestUrl = "http://api.linkedin.com/v1/people/~:(id,first-name,last-name,headline,industry,summary)";
+
+            string accessToken = response.AccessToken;
+
+            var profileEndpoint = new MessageReceivingEndpoint(profileRequestUrl, HttpDeliveryMethods.GetRequest);
+            HttpWebRequest request = WebWorker.PrepareAuthorizedRequest(profileEndpoint, accessToken);
+
+            try
+            {
+                using (WebResponse profileResponse = request.GetResponse())
+                {
+                    using (Stream responseStream = profileResponse.GetResponseStream())
+                    {
+                        XDocument document = XDocument.Load(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 Dictionary<string, string>();
+                        extraData.Add("name", userName);
+                        extraData.AddDataIfNotEmpty(document, "headline");
+                        extraData.AddDataIfNotEmpty(document, "summary");
+                        extraData.AddDataIfNotEmpty(document, "industry");
+
+                        return new AuthenticationResult(
+                            isSuccessful: true,
+                            provider: ProviderName,
+                            providerUserId: userId,
+                            userName: userName,
+                            extraData: extraData);
+                    }
+                }
+            }
+            catch (Exception exception)
+            {
+                return new AuthenticationResult(exception);
+            }
+        }
+    }
+}
+\ No newline at end of file