为什么 Yammer 发布消息错误 500
本文关键字:消息 错误 Yammer 布消息 为什么 | 更新日期: 2023-09-27 18:34:15
发布消息时,Yammer 会引发以下错误(并且不发布消息):
远程服务器返回错误: (500) 内部服务器错误。
我正在使用 Yammer .NET 包装器,它与 REST 调用"https://www.yammer.com/api/v1/messages.json"一起工作正常,但发布消息给出了上述错误。
下面是给我们错误消息的代码,
String consumerkey = "consumerkey";
String clientsecret = "clientsecret";
WebProxy webpro = new WebProxy("ourproxyserver",8080)
webpro.BypassProxyOnLocal = true;
webpro.Credentials = CredentialCache.DefaultCredentials;
String access_token = "https://www.yammer.com/oauth2/access_token.json"+
"?client_id=clientid&"+
"client_secret=cli_secret&code=code_id";
Yammer.Session session = new Yammer.Session(
new OAuth.OAuthKey(
consumerkey, clientsecret, access_token,"token"
),
webpro);
NameValueCollection parameters = new NameValueCollection();
parameters.Add("body", body);
response = Yammer.HttpUtility.Post(Resources.YAMMER_MESSAGES_CREATE, parameters, session);
任何想法可能出了什么问题?
您可以尝试以下包装器方法在 yammer 上发布消息(请注意,此代码使用 Auth
和Authbase
类:
public static string PostMessage(string body)
{
NameValueCollection parameters = new NameValueCollection();
parameters.Add("body", body);
string response = string.Empty;
response = Post("https://www.yammer.com/api/v1/messages/", parameters);
return response;
}
public static string Post(string url, NameValueCollection parameters)
{
string nonce, timestamp;
string fullUrl = EncodeUrl(url, parameters);
string signature = GetSignature(WebMethod.POST, fullUrl, out timestamp, out nonce);
HttpWebRequest request = CreateWebRequest(url, WebMethod.POST, nonce, timestamp, signature);
int count = 0;
string queryString = string.Empty;
foreach (string key in parameters.Keys)
{
if (count == 0)
queryString = key + "=" + Rfc3986.Encode(parameters[key]);
else
queryString += "&" + key + "=" + Rfc3986.Encode(parameters[key]);
count++;
}
byte[] postDataBytes = Encoding.ASCII.GetBytes(queryString);
request.ContentLength = postDataBytes.Length;
Stream reqStream = request.GetRequestStream();
reqStream.Write(postDataBytes, 0, postDataBytes.Length);
reqStream.Close();
WebResponse response = null;
string data = string.Empty;
try
{
response = request.GetResponse();
data = response.Headers["Location"];
}
catch (Exception ex)
{
//System.Windows.Forms.MessageBox.Show("Error retrieving web response " + ex.Message);
throw ex;
}
finally
{
if (response != null)
response.Close();
}
return data;
}
private static string EncodeUrl(string url, NameValueCollection parameters)
{
string fullUrl = string.Empty;
int count = 0;
foreach (string key in parameters.Keys)
{
if (count == 0)
fullUrl = url + "?" + key + "=" + Rfc3986.Encode(parameters[key].ToLower());
else
fullUrl += "&" + key + "=" + Rfc3986.Encode(parameters[key].ToLower());
count++;
}
return fullUrl;
}
public static string GetSignature(WebMethod method, string url, out string timestamp, out string nonce)
{
OAuthBase oAuth = new OAuthBase();
nonce = oAuth.GenerateNonce();
timestamp = oAuth.GenerateTimeStamp();
string nurl, nrp;
Uri uri = new Uri(url);
string sig = oAuth.GenerateSignature(
uri,
YOURCONSUMERKEY,
YOURCONSUMER_SECRET,
AuthToken,
AuthTokenSecret,
method.ToString(),
timestamp,
nonce,
OAuthBase.SignatureTypes.PLAINTEXT, out nurl, out nrp);
return System.Web.HttpUtility.UrlEncode(sig);
}
private static HttpWebRequest CreateWebRequest(string fullUrl, WebMethod method, string nonce, string timeStamp, string sig)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(fullUrl);
request.Method = method.ToString();
request.Proxy = Yammer.Session.WebProxy;
string authHeader = CreateAuthHeader(method, nonce, timeStamp, sig);
request.ContentType = "application/x-www-form-urlencoded";
request.Headers.Add("Authorization", authHeader);
return request;
}
private static string CreateAuthHeader(WebMethod method, string nonce, string timeStamp, string sig)
{
var sb = new StringBuilder();
sb.Append("OAuth ");
if (method == WebMethod.POST)
sb.Append("realm='"" + "'",");
else
sb.Append("realm='"'",");
string authHeader = "oauth_consumer_key='"" + YOURCONSUMERKEY + "'"," +
"oauth_token='"" + YOURAUTHTOKEN + "'"," +
"oauth_nonce='"" + nonce + "'"," +
"oauth_timestamp='"" + timeStamp + "'"," +
"oauth_signature_method='"" + "HMAC-SHA1" + "'"," +
"oauth_version='"" + "1.0" + "'"," +
"oauth_signature='"" + sig + "'"";
sb.Append(authHeader);
return sb.ToString();
}