ServiceStack/src/ServiceStack.Authentication.OAuth2/LinkedInOAuth2Provider.cs at master · api-dev/ServiceStack · GitHub

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using System.Collections.Generic;
using System.Xml.Linq;
using ServiceStack.Auth;
using ServiceStack.Configuration;
using ServiceStack.Text;

namespace ServiceStack.Authentication.OAuth2
{
    /// <summary>
    /// Create new App at: https://www.linkedin.com/secure/developer
    /// </summary>
    public class LinkedInOAuth2Provider : OAuth2Provider
    {
        public const string Name = "LinkedIn";

        public const string Realm = "https://www.linkedin.com/uas/oauth2/authorization";

        public LinkedInOAuth2Provider(IAppSettings appSettings)
            : base(appSettings, Realm, Name)
        {
            this.AuthorizeUrl = this.AuthorizeUrl ?? Realm;
            this.AccessTokenUrl = this.AccessTokenUrl ?? "https://www.linkedin.com/uas/oauth2/accessToken";

            //Fields available at: http://developer.linkedin.com/documents/profile-fields
            this.UserProfileUrl = this.UserProfileUrl
                ?? "https://api.linkedin.com/v1/people/~:(id,email-address,formatted-name,first-name,last-name,date-of-birth,public-profile-url,picture-url)";

            if (this.Scopes.Length == 0)
            {
                this.Scopes = new[] {
                    "r_emailaddress",
                    "r_basicprofile"
                };
            }
        }

        protected override Dictionary<string, string> CreateAuthInfo(string accessToken)
        {
            var url = this.UserProfileUrl.AddQueryParam("oauth2_access_token", accessToken);
            var contents = url.GetXmlFromUrl();
            var xml = XDocument.Parse(contents);
            var el = xml.Root;
            var authInfo = new Dictionary<string, string>
            {
                { "user_id", el.GetString("id") },
                { "username", el.GetString("email-address") },
                { "email", el.GetString("email-address") },
                { "name", el.GetString("formatted-name") },
                { "first_name", el.GetString("first-name") },
                { "last_name", el.GetString("last-name") },
                { "birthday", el.GetString("date-of-birth") },
                { "link", el.GetString("public-profile-url") },
                { "picture", el.GetString("picture-url") },
                { AuthMetadataProvider.ProfileUrlKey,  el.GetString("picture-url") },
            };

            return authInfo;
        }
    }
}