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//-----------------------------------------------------------------------
// <copyright file="FacebookClient.cs" company="Outercurve Foundation">
// Copyright (c) Outercurve Foundation. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace DotNetOpenAuth.ApplicationBlock {
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Web;
using DotNetOpenAuth.Messaging;
using DotNetOpenAuth.OAuth2;
public class FacebookClient : WebServerClient {
private static readonly AuthorizationServerDescription FacebookDescription = new AuthorizationServerDescription {
TokenEndpoint = new Uri("https://graph.facebook.com/oauth/access_token"),
AuthorizationEndpoint = new Uri("https://graph.facebook.com/oauth/authorize"),
ProtocolVersion = ProtocolVersion.V20
};
/// <summary>
/// Initializes a new instance of the <see cref="FacebookClient"/> class.
/// </summary>
public FacebookClient()
: base(FacebookDescription) {
}
public async Task<IOAuth2Graph> GetGraphAsync(IAuthorizationState authState, string[] fields = null, CancellationToken cancellationToken = default(CancellationToken)) {
if ((authState != null) && (authState.AccessToken != null)) {
var httpClient = new HttpClient(this.CreateAuthorizingHandler(authState));
string fieldsStr = (fields == null) || (fields.Length == 0) ? FacebookGraph.Fields.Defaults : string.Join(",", fields);
using (
var response = await httpClient.GetAsync("https://graph.Facebook.com/me?fields=" + fieldsStr, cancellationToken)) {
response.EnsureSuccessStatusCode();
using (var responseStream = await response.Content.ReadAsStreamAsync()) {
return FacebookGraph.Deserialize(responseStream);
}
}
}
return null;
}
/// <summary>
/// Well-known permissions defined by Facebook.
/// </summary>
/// <remarks>
/// This sample includes just a few permissions. For a complete list of permissions please refer to:
/// https://developers.facebook.com/docs/reference/login/
/// </remarks>
public static class Scopes {
#region Email Permissions
/// <summary>
/// Provides access to the user's primary email address in the email property. Do not spam users. Your use of email must comply both with Facebook policies and with the CAN-SPAM Act.
/// </summary>
public const string Email = "email";
#endregion
#region Extended Permissions
/// <summary>
/// Provides access to any friend lists the user created. All user's friends are provided as part of basic data, this extended permission grants access to the lists of friends a user has created, and should only be requested if your application utilizes lists of friends.
/// </summary>
public const string ReadFriendlists = "read_friendlists";
/// <summary>
/// Provides read access to the Insights data for pages, applications, and domains the user owns.
/// </summary>
public const string ReadInsights = "read_insights";
#endregion
#region Extended Profile Properties
/// <summary>
/// Provides access to the "About Me" section of the profile in the about property
/// </summary>
public const string UserAboutMe = "user_about_me";
/// <summary>
/// Provides access to the user's list of activities as the activities connection
/// </summary>
public const string UserActivities = "user_activities";
/// <summary>
/// Provides access to the birthday with year as the birthday property. Note that your app may determine if a user is "old enough" to use an app by obtaining the age_range public profile property
/// </summary>
public const string UserBirthday = "user_birthday";
#endregion
#region Open Graph Permissions
#endregion
#region Page Permissions
#endregion
#region Public Profile and Friend List
#endregion
}
}
}
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