// private const string urlUpdate = "https://api.twitter.com/1.1/statuses/update.json";
/// <summary>
/// The content to tweet, limited to the requisite 140 chars
/// </summary>
/// <param name="o">The IPostable object</param>
/// <param name="szHost">host to use, branding used if null</param>
/// <returns>The content of the tweet</returns>
public static string TweetContent(IPostable o, string szHost)
{
if (o == null)
{
throw new ArgumentNullException(nameof(o));
}
if (!o.CanPost)
{
return(string.Empty);
}
Uri uriItem = o.SocialMediaItemUri(szHost);
string szUri = uriItem == null ? string.Empty : uriItem.AbsoluteUri;
int cch = 140;
StringBuilder sb = new StringBuilder(cch);
cch -= szUri.Length + 1;
sb.Append(o.SocialMediaComment.LimitTo(cch));
if (szUri.Length > 0)
{
sb.AppendFormat(CultureInfo.CurrentCulture, " {0}", szUri);
}
return(sb.ToString());
}
public bool PostToSocialMedia(IPostable o, string szUser, string szHost = null)
{
if (o == null)
{
throw new ArgumentNullException("o");
}
if (!o.CanPost)
{
return(false);
}
if (String.IsNullOrEmpty(szUser))
{
throw new ArgumentNullException("szUser");
}
if (String.IsNullOrEmpty(szHost))
{
szHost = Branding.CurrentBrand.HostName;
}
Profile pf = Profile.GetUser(szUser);
// Check for user not configured
if (pf.FacebookAccessToken == null || String.IsNullOrEmpty(pf.FacebookAccessToken.AccessToken))
{
return(false);
}
// NOTE: We need to update the version code below periodically as the API updates
const string szUrl = "https://graph.facebook.com/v2.10/me/feed";
MultipartFormDataContent form = new MultipartFormDataContent();
Uri uriItem = o.SocialMediaItemUri(szHost);
MyFlightbook.Image.MFBImageInfo img = o.SocialMediaImage(szHost);
// Add in the main parameters:
Dictionary <string, string> dictParams = new Dictionary <string, string>()
{
{ "access_token", pf.FacebookAccessToken.AccessToken },
{ "message", string.Empty }
};
if (uriItem != null)
{
dictParams.Add("link", uriItem.AbsoluteUri);
}
if (img != null)
{
dictParams.Add("picture", img.URLFullImage.ToAbsoluteURL("http", Branding.CurrentBrand.HostName).ToString());
}
foreach (string key in dictParams.Keys)
{
StringContent sc = new StringContent(dictParams[key]);
sc.Headers.ContentDisposition = (new System.Net.Http.Headers.ContentDispositionHeaderValue("form-data")
{
Name = key
});
sc.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("text/plain")
{
CharSet = "ISO-8859-1"
};
form.Add(sc);
}
// The remainder can run on a background thread, since we don't do anything that requires a result from here.
new System.Threading.Thread(() =>
{
using (HttpClient httpClient = new HttpClient())
{
try
{
HttpResponseMessage response = httpClient.PostAsync(new Uri(szUrl), form).Result;
string szResult = response.Content.ReadAsStringAsync().Result;
if (response.IsSuccessStatusCode)
{
// do a refresh, to extend as much as possible
if (MFBFacebook.ExchangeToken(pf.FacebookAccessToken))
{
pf.FCommit();
}
}
else
{
HandleFBFailure(szUser, szResult);
}
}
catch (MyFlightbookException) { }
catch (System.ArgumentNullException) { }
finally
{
form.Dispose();
}
}
}).Start();
return(true);
}