private Dictionary<string, string> GetUserInfo(FacebookAccessToken token)
{
Dictionary<string, string> info = new Dictionary<string, string>();
string facebookEndpoint = "https://graph.facebook.com/me";
string tokenArgs = string.Format("access_token={0}",
UrlEncode(token.AccessToken));
HttpWebRequest wr = (HttpWebRequest)HttpWebRequest.Create(facebookEndpoint + "?" + tokenArgs);
try
{
HttpWebResponse response = (HttpWebResponse)wr.GetResponse();
if (response.StatusCode != HttpStatusCode.OK)
{
}
else
{
Encoding encode = Encoding.GetEncoding("utf-8");
StreamReader sr = new StreamReader(response.GetResponseStream(), encode);
string responseString = sr.ReadToEnd();
info = JsonConvert.DeserializeObject<Dictionary<string, string>>(responseString);
}
}
catch (System.Net.WebException ex)
{
if (((HttpWebResponse)ex.Response).StatusCode == HttpStatusCode.BadRequest)
{
return null;
}
else
{
return null;
}
}
return info;
}
internal FacebookAccessToken RefreshOAuthAccessToken(Core core, FacebookAccessToken token)
{
string facebookEndpoint = "https://graph.facebook.com/oauth/access_token";
string redirectTo = (core.Settings.UseSecureCookies ? "https://" : "http://") + Hyperlink.Domain + "/api/facebook/callback";
string tokenArgs = string.Format("grant_type=fb_exchange_token&client_id={0}&client_secret={1}&fb_exchange_token={2}",
appId, appSecret, token.AccessToken);
HttpWebRequest wr = (HttpWebRequest)HttpWebRequest.Create(facebookEndpoint + "?" + tokenArgs);
HttpWebResponse response = (HttpWebResponse)wr.GetResponse();
if (response.StatusCode != HttpStatusCode.OK)
{
}
else
{
Encoding encode = Encoding.GetEncoding("utf-8");
StreamReader sr = new StreamReader(response.GetResponseStream(), encode);
string responseString = sr.ReadToEnd();
NameValueCollection responseDictionary = HttpUtility.ParseQueryString(responseString);
if (!string.IsNullOrEmpty(responseDictionary["access_token"]))
{
long expires = 0;
long.TryParse(responseDictionary["expires"], out expires);
return new FacebookAccessToken(string.Empty, responseDictionary["access_token"], expires);
}
}
return null;
}
public FacebookPost StatusesUpdate(FacebookAccessToken token, string message, string link, string sharePermissions)
{
string method = "POST";
string facebookEndpoint = string.Format("https://graph.facebook.com/{0}/feed", token.UserId);
string body = "message=" + UrlEncode(message);
if (!string.IsNullOrEmpty(link))
{
body += "&link=" + UrlEncode(link);
}
if (!string.IsNullOrEmpty(sharePermissions))
{
body += "&privacy=" + UrlEncode("{'value':'" + sharePermissions + "'}");
}
body += "&access_token=" + UrlEncode(token.AccessToken);
HttpWebRequest wr = (HttpWebRequest)HttpWebRequest.Create(facebookEndpoint);
wr.ProtocolVersion = HttpVersion.Version11;
wr.UserAgent = "HttpCore/1.1";
wr.ContentType = "application/x-www-form-urlencoded";
wr.Method = method;
wr.ContentLength = body.Length;
byte[] bodyBytes = UTF8Encoding.UTF8.GetBytes(body);
Stream stream = wr.GetRequestStream();
stream.Write(bodyBytes, 0, bodyBytes.Length);
HttpWebResponse response = (HttpWebResponse)wr.GetResponse();
string postId = string.Empty;
if (response.StatusCode != HttpStatusCode.OK)
{
}
else
{
Encoding encode = Encoding.GetEncoding("utf-8");
StreamReader sr = new StreamReader(response.GetResponseStream(), encode);
string responseString = sr.ReadToEnd();
Dictionary<string, string> info = JsonConvert.DeserializeObject<Dictionary<string, string>>(responseString);
postId = info["id"];
}
return new FacebookPost(postId);
}
internal FacebookAccessToken OAuthAppAccessToken(Core core, string userId)
{
string facebookEndpoint = "https://graph.facebook.com/oauth/access_token";
string tokenArgs = string.Format("client_id={0}&client_secret={1}&grant_type=client_credentials",
appId, appSecret);
HttpWebRequest wr = (HttpWebRequest)HttpWebRequest.Create(facebookEndpoint + "?" + tokenArgs);
HttpWebResponse response = (HttpWebResponse)wr.GetResponse();
if (response.StatusCode != HttpStatusCode.OK)
{
}
else
{
Encoding encode = Encoding.GetEncoding("utf-8");
StreamReader sr = new StreamReader(response.GetResponseStream(), encode);
string responseString = sr.ReadToEnd();
NameValueCollection responseDictionary = HttpUtility.ParseQueryString(responseString);
if (!string.IsNullOrEmpty(responseDictionary["access_token"]))
{
FacebookAccessToken token = new FacebookAccessToken(responseDictionary["access_token"], userId);
return token;
}
}
return null;
}
public void DeleteStatus(FacebookAccessToken token, string postId)
{
string method = "DELETE";
string facebookEndpoint = string.Format("https://graph.facebook.com/{0}", postId);
string tokenArgs = string.Format("access_token={0}",
token.AccessToken);
HttpWebRequest wr = (HttpWebRequest)HttpWebRequest.Create(facebookEndpoint + "?" + tokenArgs);
wr.ProtocolVersion = HttpVersion.Version11;
wr.UserAgent = "HttpCore/1.1";
wr.ContentType = "application/x-www-form-urlencoded";
wr.Method = method;
HttpWebResponse response = (HttpWebResponse)wr.GetResponse();
if (response.StatusCode != HttpStatusCode.OK)
{
}
else
{
Encoding encode = Encoding.GetEncoding("utf-8");
StreamReader sr = new StreamReader(response.GetResponseStream(), encode);
string responseString = sr.ReadToEnd();
}
}
