我想使用 c# 从 Twitter api 获取电子邮件地址.我已经尝试过了,但它会引发一些异常
本文关键字:过了 异常 Twitter 电子邮件地址 获取 api | 更新日期: 2024-10-26 02:50:47
以下代码是我用C#编写的。谁能帮我?
public string Verify_Credentials(string oauthconsumerkey, string oauthconsumersecret, string oauthtoken, string oauthtokensecret)
{
string oauthsignaturemethod = "HMAC-SHA1";
string oauthversion = "1.0";
string oauthnonce = Convert.ToBase64String(new ASCIIEncoding().GetBytes(DateTime.Now.Ticks.ToString()));
TimeSpan ts = DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
string oauthtimestamp = Convert.ToInt64(ts.TotalSeconds).ToString();
SortedDictionary<string, string> basestringParameters = new SortedDictionary<string, string>();
basestringParameters.Add("oauth_version", "1.0");
basestringParameters.Add("oauth_consumer_key", oauthconsumerkey);
basestringParameters.Add("oauth_nonce", oauthnonce);
basestringParameters.Add("oauth_signature_method", "HMAC-SHA1");
basestringParameters.Add("oauth_timestamp", oauthtimestamp);
basestringParameters.Add("oauth_token", oauthtoken);
//GS - Build the signature string
StringBuilder baseString = new StringBuilder();
baseString.Append("GET" + "&");
baseString.Append(EncodeCharacters(Uri.EscapeDataString("https://api.twitter.com/1.1/account/verify_credentials.json") + "&"));
foreach (KeyValuePair<string, string> entry in basestringParameters)
{
baseString.Append(EncodeCharacters(Uri.EscapeDataString(entry.Key + "=" + entry.Value + "&")));
}
//Since the baseString is urlEncoded we have to remove the last 3 chars - %26
string finalBaseString = baseString.ToString().Substring(0, baseString.Length - 3);
//Build the signing key
string signingKey = EncodeCharacters(Uri.EscapeDataString(oauthconsumersecret)) + "&" +
EncodeCharacters(Uri.EscapeDataString(oauthtokensecret));
//Sign the request
HMACSHA1 hasher = new HMACSHA1(new ASCIIEncoding().GetBytes(signingKey));
string oauthsignature = Convert.ToBase64String(hasher.ComputeHash(new ASCIIEncoding().GetBytes(finalBaseString)));
string responseFromServer = string.Empty;
//Tell Twitter we don't do the 100 continue thing
ServicePointManager.Expect100Continue = false;
//authorization header
HttpWebRequest hwr = (HttpWebRequest)WebRequest.Create(
@"https://api.twitter.com/1.1/account/verify_credentials.json?include_email=true");
StringBuilder authorizationHeaderParams = new StringBuilder();
authorizationHeaderParams.Append("OAuth ");
authorizationHeaderParams.Append("include_email=" + "'"" + "true" + "'",");
authorizationHeaderParams.Append("oauth_nonce=" + "'"" + Uri.EscapeDataString(oauthnonce) + "'",");
authorizationHeaderParams.Append("oauth_signature_method=" + "'"" + Uri.EscapeDataString(oauthsignaturemethod) + "'",");
authorizationHeaderParams.Append("oauth_timestamp=" + "'"" + Uri.EscapeDataString(oauthtimestamp) + "'",");
authorizationHeaderParams.Append("oauth_consumer_key=" + "'"" + Uri.EscapeDataString(oauthconsumerkey) + "'",");
if (!string.IsNullOrEmpty(oauthtoken))
authorizationHeaderParams.Append("oauth_token=" + "'"" + Uri.EscapeDataString(oauthtoken) + "'",");
authorizationHeaderParams.Append("oauth_signature=" + "'"" + Uri.EscapeDataString(oauthsignature) + "'",");
authorizationHeaderParams.Append("oauth_version=" + "'"" + Uri.EscapeDataString(oauthversion) + "'"");
hwr.Headers.Add("Authorization", authorizationHeaderParams.ToString());
hwr.Method = "GET";
hwr.ContentType = "application/x-www-form-urlencoded";
//Allow us a reasonable timeout in case Twitter's busy
hwr.Timeout = 3 * 60 * 1000;
try
{
// hwr.Proxy = new WebProxy("enter proxy details/address");
HttpWebResponse rsp = hwr.GetResponse() as HttpWebResponse;
Stream dataStream = rsp.GetResponseStream();
//Open the stream using a StreamReader for easy access.
StreamReader reader = new StreamReader(dataStream);
//Read the content.
responseFromServer = reader.ReadToEnd();
}
catch (Exception ex)
{
}
return responseFromServer;
}
private string EncodeCharacters(string data)
{
//as per OAuth Core 1.0 Characters in the unreserved character set MUST NOT be encoded
//unreserved = ALPHA, DIGIT, '-', '.', '_', '~'
if (data.Contains("!"))
data = data.Replace("!", "%21");
if (data.Contains("'"))
data = data.Replace("'", "%27");
if (data.Contains("("))
data = data.Replace("(", "%28");
if (data.Contains(")"))
data = data.Replace(")", "%29");
if (data.Contains("*"))
data = data.Replace("*", "%2A");
if (data.Contains(","))
data = data.Replace(",", "%2C");
return data;
}
你的应用必须被 Twitter 列入白名单,才能从以下位置获取电子邮件:
https://api.twitter.com/1.1/account/verify_credentials.json
因此,如果您删除请求 url 的一部分?include_email=true
您将获得包含某些字段的响应,然后您可以获取用户的screen_name。
您可以使用以下表格请求列入白名单(选中>"我需要访问特殊权限"):
https://support.twitter.com/forms/platform
就我而言,他们在几个小时后授予我访问权限......
更多信息: https://dev.twitter.com/rest/reference/get/account/verify_credentials