public T GetLinkedInFeeds(string linkedInGetPostsUrl, OauthAuthentication oauthAuthentication)
{
//Using Linked Oauth: http://www.codeproject.com/Articles/247336/Twitter-OAuth-authentication-using-Net
if (HttpContext.Current.Session["OAuthAuthentication"] == null)
{
GetOauthLinkedInToken(oauthAuthentication);
}
else
{
var queries = HttpContext.Current.Request.QueryString;
var code = queries.GetValues("code").FirstOrDefault();
if (!string.IsNullOrEmpty(code))
{
var oauthUnit = HttpContext.Current.Session["OAuthAuthentication"] as OauthAuthentication;
oauthUnit.TokenKey = code;
var accessToken = GetLinkedInAccessToken(oauthUnit);
var oauthHeader = GetOauthHeader(OauthHeaderType.Bearer, accessToken, OAuthSocialNetwork.LinkedIn);
Func <XDocument, IEnumerable <TweetObject> > resolveXml = GetLinkedInFeedsFromXdoc;
return(MakeGetHttpRequest(linkedInGetPostsUrl, resolveXml, oauthHeader));
}
}
return(new T());
}
public WidgetGroupItemList GetProfileTwitterFeeds(string twitterProfileUrl, OauthAuthentication oauthAuthentication)
{
//Using Twitter Oauth: http://www.codeproject.com/Articles/247336/Twitter-OAuth-authentication-using-Net
_widgetGroupItems = _cache[_cacheKey] == null ? null : _cache[_cacheKey] as WidgetGroupItemList;
if (_widgetGroupItems == null)
{
_widgetGroupItems = new WidgetGroupItemList();
var oauthToken = GetOauthToken(oauthAuthentication);
var oauthHeader = GetOauthHeader(OauthHeaderType.Bearer, oauthToken);
StreamReader reader = null;
ServicePointManager.Expect100Continue = false;
try
{
HttpWebRequest request = null;
request = WebRequest.Create(twitterProfileUrl) as HttpWebRequest;
if (request != null)
{
request.Headers.Add("Authorization", oauthHeader);
request.Method = "GET";
request.ContentType = "application/x-www-form-urlencoded";
using (var response = request.GetResponse() as HttpWebResponse)
{
using (Stream respStream = response.GetResponseStream())
{
if (respStream != null)
{
reader = new StreamReader(respStream);
string xmlString = reader.ReadToEnd();
reader.Close();
return(ConvertRawTweetsToXmlConsumables(xmlString));
}
}
}
}
return(new WidgetGroupItemList());
}
catch (Exception e)
{
if (reader != null)
{
reader.Close();
}
throw e;
}
}
else
{
return(_cache[_cacheKey] as WidgetGroupItemList);
}
}
public void GetOauthLinkedInToken(OauthAuthentication oauthAuthentication)
{
StreamReader reader = null;
HttpWebRequest request = null;
//var oauthHeader = GetOauthHeader(oauthAuthentication, OauthHeaderType.Basic, OAuthSocialNetwork.LinkedIn);
try
{
request = WebRequest.Create(string.Format("https://www.linkedin.com/uas/oauth2/authorization?response_type=code&client_id={0}&redirect_uri={1}&scope=r_fullprofile&state=MezZanillionsxein2859", oauthAuthentication.ConsumerKey, "http%3A%2F%2Fmartinlayooinc.test.uk/auth%2Flinkedin%2Fcallback")) as HttpWebRequest;
//request.Headers.Add("Authorization", oauthHeader);
request.Method = "GET";
if (request != null)
{
using (var response = request.GetResponse() as HttpWebResponse)
{
using (Stream respStream = response.GetResponseStream())
{
if (respStream != null)
{
reader = new StreamReader(respStream);
string xmlString = reader.ReadToEnd();
reader.Close();
var tokenResult = xmlString.Split(new char[] { '&' });
if (tokenResult.Contains("code"))
{
var resultCode = tokenResult.Where(p => p.StartsWith("code")).SingleOrDefault();
if (!string.IsNullOrEmpty(resultCode))
{
oauthAuthentication.TokenKey = resultCode.Split('=')[1];
}
/*
* var resultState = tokenResult.Where(p => p.StartsWith("state")).SingleOrDefault();
* if (!string.IsNullOrEmpty(resultCode))
* {
* oauthAuthentication.TokenSecret = resultTokenSecret.Split('=')[1];
* }*/
}
}
}
}
}
}
catch (Exception e)
{
if (reader != null)
{
reader.Close();
}
throw e;
}
HttpContext.Current.Session["OAuthAuthentication"] = oauthAuthentication;
}
public T GetProfileTwitterFeeds(string twitterProfileUrl, OauthAuthentication oauthAuthentication)
{
//Using Twitter Oauth: http://www.codeproject.com/Articles/247336/Twitter-OAuth-authentication-using-Net
var oauthToken = GetOauthTwitterToken(oauthAuthentication);
var oauthHeader = GetOauthHeader(OauthHeaderType.Bearer, oauthToken, OAuthSocialNetwork.Twitter);
Func <XDocument, IEnumerable <TweetObject> > resolveXml = GetTweetFeedsFromXdoc;
return(MakeGetHttpRequest(twitterProfileUrl, resolveXml, oauthHeader));
}
public string GetOauthToken(OauthAuthentication oauthAuthentication)
{
StreamReader reader = null;
HttpWebRequest request = null;
var oauthHeader = GetOauthHeader(oauthAuthentication, OauthHeaderType.Basic);
try
{
request = WebRequest.Create("https://api.twitter.com/oauth2/token") as HttpWebRequest;
request.Headers.Add("Authorization", oauthHeader);
request.Method = "POST";
if (request != null)
{
request.ContentType = "application/x-www-form-urlencoded";
var bytes = UTF8Encoding.ASCII.GetBytes("grant_type=client_credentials");
request.ContentLength = bytes.Length;
request.GetRequestStream().Write(bytes, 0, bytes.Length);
using (var response = request.GetResponse() as HttpWebResponse)
{
using (Stream respStream = response.GetResponseStream())
{
if (respStream != null)
{
reader = new StreamReader(respStream);
string xmlString = reader.ReadToEnd();
reader.Close();
var tokenResult = xmlString.Split(new char[] { ',' });
if (tokenResult[0].Contains("bearer"))
{
return(tokenResult[1].Split(new char[] { ':' })[1].Split(new char[] { '}', '"' }, StringSplitOptions.RemoveEmptyEntries)[0].Trim());
}
else
{
return(tokenResult[0].Split(new char[] { ':' })[1].Split(new char[] { '}', '"' }, StringSplitOptions.RemoveEmptyEntries)[0].Trim());
}
}
}
}
}
return(null);
}
catch (Exception e)
{
if (reader != null)
{
reader.Close();
}
throw e;
}
}
private string GetOauthHeader(OauthAuthentication oauthentication, string resource_url)
{
var oauth_version = "1.0";
var oauth_signature_method = "HMAC-SHA1";
var oauth_nonce = Convert.ToBase64String(new ASCIIEncoding().GetBytes(DateTime.Now.Ticks.ToString()));
var timeSpan = DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0,
DateTimeKind.Utc);
var oauth_timestamp = Convert.ToInt64(timeSpan.TotalSeconds).ToString();
var baseFormat = "oauth_consumer_key={0}&oauth_nonce={1}&oauth_signature_method={2}" +
"&oauth_timestamp={3}&oauth_token={4}&oauth_version={5}&oauth_verifier={6}";
var oauth_token = GetOauthToken(oauthentication);
var baseString = string.Format(baseFormat,
oauthentication.ConsumerKey,
oauth_nonce,
oauth_signature_method,
oauth_timestamp,
oauthentication.TokenKey,
oauth_version
);
baseString = string.Concat("GET&", Uri.EscapeDataString(resource_url),
"&", Uri.EscapeDataString(baseString));
var compositeKey = string.Concat(Uri.EscapeDataString(oauthentication.ConsumerSecret),
"&", Uri.EscapeDataString(oauthentication.TokenSecret));
string oauth_signature;
using (HMACSHA1 hasher = new HMACSHA1(ASCIIEncoding.ASCII.GetBytes(compositeKey)))
{
oauth_signature = Convert.ToBase64String(
hasher.ComputeHash(ASCIIEncoding.ASCII.GetBytes(baseString)));
}
var headerFormat = "OAuth oauth_nonce=\"{0}\", oauth_signature_method=\"{1}\", " +
"oauth_timestamp=\"{2}\", oauth_consumer_key=\"{3}\", " +
"oauth_token=\"{4}\", oauth_signature=\"{5}\", " +
"oauth_version=\"{6}\",oauth_callback=oob";
var authHeader = string.Format(headerFormat,
Uri.EscapeDataString(oauth_nonce),
Uri.EscapeDataString(oauth_signature_method),
Uri.EscapeDataString(oauth_timestamp),
Uri.EscapeDataString(oauthentication.ConsumerKey),
Uri.EscapeDataString(oauthentication.TokenKey),
Uri.EscapeDataString(oauth_signature),
Uri.EscapeDataString(oauth_version)
);
return(authHeader);
}
private string GetLinkedInAccessToken(OauthAuthentication oauthAuthentication)
{
StreamReader reader = null;
HttpWebRequest request = null;
try
{
request = WebRequest.Create("https://api.linkedin.com/uas/oauth/accessToken") as HttpWebRequest;
request.Method = "POST";
if (request != null)
{
request.ContentType = "application/x-www-form-urlencoded";
var bytes = UTF8Encoding.ASCII.GetBytes(string.Format("grant_type=authorization_code&redirect_uri={0}&client_id={1}&client_secret={2}&code={3}", "http%3A%2F%2Flocalhost%2Fmartinchaos%2Home%AboutUs", oauthAuthentication.ConsumerKey, oauthAuthentication.TokenSecret, oauthAuthentication.TokenKey));
request.ContentLength = bytes.Length;
request.GetRequestStream().Write(bytes, 0, bytes.Length);
using (var response = request.GetResponse() as HttpWebResponse)
{
using (Stream respStream = response.GetResponseStream())
{
if (respStream != null)
{
reader = new StreamReader(respStream);
string jsonString = reader.ReadToEnd();
//jsonString ==> {"access_token":xxx, "expires_in":xxx}
reader.Close();
var tokenResult = jsonString.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries)[0];
var accessToken = tokenResult.Split(new char[] { '{', '}', ':' }, StringSplitOptions.RemoveEmptyEntries)[1];
return(accessToken);
}
}
}
}
}
catch (Exception e)
{
if (reader != null)
{
reader.Close();
}
throw e;
}
return(string.Empty);
}
private string GetOauthHeader(OauthAuthentication oauthentication, OauthHeaderType oauthHeaderType)
{
var oauth_version = "1.0";
var oauth_signature_method = "HMAC-SHA1";
var oauth_nonce = Convert.ToBase64String(new ASCIIEncoding().GetBytes(DateTime.Now.Ticks.ToString()));
var timeSpan = DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0,
DateTimeKind.Utc);
var oauth_timestamp = Convert.ToInt64(timeSpan.TotalSeconds).ToString();
var baseFormat = "oauth_consumer_key={0}&oauth_nonce={1}&oauth_signature_method={2}" +
"&oauth_timestamp={3}&oauth_token={4}&oauth_version={5}";
var baseString = string.Format(baseFormat,
oauthentication.ConsumerKey,
oauth_nonce,
oauth_signature_method,
oauth_timestamp,
oauthentication.TokenKey,
oauth_version
);
var compositeKey = string.Concat(Uri.EscapeDataString(oauthentication.ConsumerSecret),
"&", Uri.EscapeDataString(oauthentication.TokenSecret));
string oauth_signature;
using (HMACSHA1 hasher = new HMACSHA1(ASCIIEncoding.ASCII.GetBytes(compositeKey)))
{
oauth_signature = Convert.ToBase64String(
hasher.ComputeHash(ASCIIEncoding.ASCII.GetBytes(baseString)));
}
var headerFormat = oauthentication.ConsumerKey + ":" + oauthentication.ConsumerSecret;
headerFormat = Convert.ToBase64String(ASCIIEncoding.UTF8.GetBytes(headerFormat));
return(oauthHeaderType.ToString() + " " + headerFormat);
}
private string GetOauthHeader(OauthAuthentication oauthentication, OauthHeaderType oauthHeaderType,
OAuthSocialNetwork network)
{
var oauth_version = "1.0";
var oauth_signature_method = "HMAC-SHA1";
var oauth_nonce = Convert.ToBase64String(new ASCIIEncoding().GetBytes(DateTime.Now.Ticks.ToString()));
var timeSpan = DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0,
DateTimeKind.Utc);
var oauth_timestamp = Convert.ToInt64(timeSpan.TotalSeconds).ToString();
var baseFormat = string.Empty;
var baseString = string.Empty;
if (network.Equals(OAuthSocialNetwork.Twitter))
{
baseFormat = "oauth_consumer_key={0}&oauth_nonce={1}&oauth_signature_method={2}" +
"&oauth_timestamp={3}&oauth_token={4}&oauth_version={5}";
baseString = string.Format(baseFormat,
oauthentication.ConsumerKey,
oauth_nonce,
oauth_signature_method,
oauth_timestamp,
oauthentication.TokenKey,
oauth_version
);
}
else if (network.Equals(OAuthSocialNetwork.LinkedIn))
{
baseFormat = "oauth_consumer_key={0}&oauth_nonce={1}&oauth_signature_method={2}" +
"&oauth_timestamp={3}&oauth_callback={4}&oauth_version={5}&client_id={6}&redirect_uri={7}&scope=r_fullprofile%20w_share&state=MezZanillionsxein2859";
baseString = string.Format(baseFormat,
oauthentication.ConsumerKey,
oauth_nonce,
oauth_signature_method,
oauth_timestamp,
HttpContext.Current.Request.Url.AbsoluteUri,
oauth_version,
oauthentication.ClientAppId,
HttpContext.Current.Request.Url.AbsoluteUri
);
}
var compositeKey = string.Concat(Uri.EscapeDataString(oauthentication.ConsumerSecret),
"&", Uri.EscapeDataString(oauthentication.TokenSecret));
string oauth_signature;
using (HMACSHA1 hasher = new HMACSHA1(ASCIIEncoding.ASCII.GetBytes(compositeKey)))
{
oauth_signature = Convert.ToBase64String(
hasher.ComputeHash(ASCIIEncoding.ASCII.GetBytes(baseString)));
}
var headerFormat = oauthentication.ConsumerKey + ":" + oauthentication.ConsumerSecret;
headerFormat = Convert.ToBase64String(ASCIIEncoding.UTF8.GetBytes(headerFormat));
return(oauthHeaderType.ToString() + " " + headerFormat);
}