在C#应用程序中获取Yahoo联系人列表

以下是我使用OAuth获得Yahoo联系人列表的指导：

向…发出GET请求 为了获得oauth_令牌和oauth_令牌密钥，我成功地获得了它们

示例url：

OAuthBase oath = new OAuthBase();

string url = "https://api.login.yahoo.com/oauth/v2/get_request_token?" +

          "oauth_nonce=" + oath.GenerateNonce() +
          "&oauth_timestamp=" + oath.GenerateTimeStamp() +
          "&oauth_consumer_key=" + consumerKey+
          "&oauth_signature_method=plaintext" +
          "&oauth_signature=" + consumerSecret + "%26" + //%26 if plaintext
          "&oauth_version=1.0" +
          "&oauth_callback=" + "oob";

string sig = consumerSecret + "%26" + OauthTokenSecret;
string url = "https://api.login.yahoo.com/oauth/v2/get_token?" +

          "oauth_consumer_key=" + consumerKey+
          "&oauth_signature_method=plaintext" +
          "&oauth_signature=" + sig +
          "&oauth_timestamp=" + oath.GenerateTimeStamp() +
          "&oauth_version=1.0" +
          "&oauth_token=" + OAuthToken +
          "&oauth_nonce=" + oath.GenerateNonce() +
          "&oauth_verifier=" + oauth_verifier;

使用步骤1的oauth_令牌。为了向{token}发出GET请求，它返回了oauth_验证器

使用步骤1和2的参数向发出GET请求，它返回了新的oauth_令牌、oauth_令牌、oauth_会话句柄、xoauth_yahoo_guid

示例url：

OAuthBase oath = new OAuthBase();

string url = "https://api.login.yahoo.com/oauth/v2/get_request_token?" +

          "oauth_nonce=" + oath.GenerateNonce() +
          "&oauth_timestamp=" + oath.GenerateTimeStamp() +
          "&oauth_consumer_key=" + consumerKey+
          "&oauth_signature_method=plaintext" +
          "&oauth_signature=" + consumerSecret + "%26" + //%26 if plaintext
          "&oauth_version=1.0" +
          "&oauth_callback=" + "oob";

string sig = consumerSecret + "%26" + OauthTokenSecret;
string url = "https://api.login.yahoo.com/oauth/v2/get_token?" +

          "oauth_consumer_key=" + consumerKey+
          "&oauth_signature_method=plaintext" +
          "&oauth_signature=" + sig +
          "&oauth_timestamp=" + oath.GenerateTimeStamp() +
          "&oauth_version=1.0" +
          "&oauth_token=" + OAuthToken +
          "&oauth_nonce=" + oath.GenerateNonce() +
          "&oauth_verifier=" + oauth_verifier;

最后一步是获取联系人列表： 我向{xoauth\u yahoo\u guid}/contacts？format=json发出GET请求

范例

Uri uri = new Uri(url);
string nonce = oath.GenerateNonce();
string timeStamp = oath.GenerateTimeStamp();
string normalizedUrl;
string normalizedRequestParameters;
string sig = oath.GenerateSignature(uri, clientId, clientSecret, yahooToken.OAuthToken,
    yahooToken.OauthTokenSecret, "GET", timeStamp, nonce, OAuthBase.SignatureTypes.HMACSHA1,
    out normalizedUrl, out normalizedRequestParameters);

函数生成器签名：

public string GenerateSignature(Uri url, string consumerKey, string consumerSecret, string token, string tokenSecret, string httpMethod, string timeStamp, string nonce, SignatureTypes signatureType, out string normalizedUrl, out string normalizedRequestParameters)
{
    normalizedUrl = null;
    normalizedRequestParameters = null;

    switch (signatureType)
    {
        case SignatureTypes.PLAINTEXT:
            return HttpUtility.UrlEncode(string.Format("{0}&{1}", consumerSecret, tokenSecret));
        case SignatureTypes.HMACSHA1:
            string signatureBase = GenerateSignatureBase(url, consumerKey, token, tokenSecret, httpMethod, timeStamp, nonce, HMACSHA1SignatureType, out normalizedUrl, out normalizedRequestParameters);

            HMACSHA1 hmacsha1 = new HMACSHA1();
            hmacsha1.Key = Encoding.ASCII.GetBytes(string.Format("{0}&{1}", UrlEncode(consumerSecret), string.IsNullOrEmpty(tokenSecret) ? "" : UrlEncode(tokenSecret)));

            return GenerateSignatureUsingHash(signatureBase, hmacsha1);
        case SignatureTypes.RSASHA1:
            throw new NotImplementedException();
        default:
            throw new ArgumentException("Unknown signature type", "signatureType");
    }
}

提出请求：

using (var client = new WebClient())
{
    string authenHeader = "OAuth " +
        "realm=\"yahooapis.com\"" +
        ",oauth_consumer_key=\"" + consumerKey+ "\"" +
        ",oauth_nonce=\"" + nonce + "\"" +
        ",oauth_signature_method=\"HMAC-SHA1\"" +
        ",oauth_timestamp=\"" + timeStamp + "\"" +
        ",oauth_token=\"" + OAuthToken + "\"" +
        ",oauth_version=\"1.0\"" +
        ",oauth_signature=\"" + HttpUtility.UrlEncode(sig) + "\"";

    client.Headers.Set("Authorization", authenHeader);
    string responseString = client.DownloadString(url);
}

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但是雅虎给了我（401）个未经授权的回复，你能告诉我哪里错了吗？

我意识到我被困在了同一个地方

System.Net.WebException:远程服务器返回错误：（401）未经授权。位于..GetEmailContacts（），位于

：/sighz

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所以我发现了这个问题。我将内容格式从XML更改为JSON

更改如下：

private ArrayList GetEmailContacts() {
    OAuthBase oauth = new OAuthBase();

    Uri uri = new Uri("https://social.yahooapis.com/v1/user/" + OauthYahooGuid + "/contacts?format=json");
    string nonce = oauth.GenerateNonce();
    string timeStamp = oauth.GenerateTimeStamp();
    string normalizedUrl;
    string normalizedRequestParameters;
    string sig = oauth.GenerateSignature(uri, this.sConsumerKey, this.sConsumerSecret, OauthToken, OauthTokenSecret, "GET", timeStamp, nonce, OAuthBase.SignatureTypes.HMACSHA1, out normalizedUrl, out normalizedRequestParameters);

    StringBuilder sbGetContacts = new StringBuilder(uri.ToString());

    try {
        string returnStr = string.Empty;
        HttpWebRequest req = (HttpWebRequest)WebRequest.Create(sbGetContacts.ToString());
        req.Accept = "application/json";
        req.ContentType = "application/json";
        req.Method = "GET";
        ArrayList emails = new ArrayList();

        string authHeader = "Authorization: OAuth " +
        "realm=\"yahooapis.com\"" +
        ",oauth_consumer_key=\"" + this.sConsumerKey + "\"" +
        ",oauth_nonce=\"" + nonce + "\"" +
        ",oauth_signature_method=\"HMAC-SHA1\"" +
        ",oauth_timestamp=\"" + timeStamp + "\"" +
        ",oauth_token=\"" + OauthToken + "\"" +
        ",oauth_version=\"1.0\"" +
        ",oauth_signature=\"" + HttpUtility.UrlEncode(sig) + "\"";

        req.Headers.Add(authHeader);

        using (HttpWebResponse res = (HttpWebResponse)req.GetResponse()) {

当我做出更改时，它突然返回了电子邮件，不再有406个错误代码

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我希望这对某人有帮助。。不知道为什么xml停止工作。

我也有同样的问题，但仍然找不到解决方案。请回复某人。