Question

我正在尝试使用Twitter API在Unity3D中按位置搜索推文。我在创建身份验证签名时遇到问题。当我尝试从Postman发出请求并使用生成的标头时，它也可以在Unity中使用，但是当我尝试自己在Unity中创建签名时，总是会从服务器收到 401未经授权的错误。因此，我确定令牌和机密有效，唯一的问题是签名。这是我创建签名的方式：

private string CreateSignature(string url)
{
    var stringBuilder = new StringBuilder();
    stringBuilder.Append("POST&");
    stringBuilder.Append(Uri.EscapeDataString(url));
    stringBuilder.Append("&");

    var dictionary = new SortedDictionary<string, string>
    {
        {"oauth_consumer_key", _mOauthConsumerKey},
        {"oauth_nonce", _mNonce},
        {"oauth_signature_method", "HMAC-SHA1"},
        {"oauth_timestamp", _mTimeStamp},
        {"oauth_token", _mOauthToken},
        {"oauth_version", "1.0"}
    };

    foreach (var keyValuePair in dictionary)
    {
        stringBuilder.Append(Uri.EscapeDataString(string.Format("{0}={1}&", keyValuePair.Key, keyValuePair.Value)));
    }

    var signatureBaseString = stringBuilder.ToString().Substring(0, stringBuilder.Length - 3);

    var signatureKey = Uri.EscapeDataString(_mOauthConsumerSecret) + "&" +
        Uri.EscapeDataString(_mOauthTokenSecret);

    var hmacsha1 = new HMACSHA1(
            ASCIIEncoding.ASCII.GetBytes(signatureKey));


    var signatureString = Convert.ToBase64String(hmacsha1.ComputeHash(
            ASCIIEncoding.ASCII.GetBytes(signatureBaseString)));

    return signatureString;
}

以下是我如何创建随机数和时间戳：

_mNonce = Convert.ToBase64String(new ASCIIEncoding().GetBytes(
    DateTime.Now.Ticks.ToString(CultureInfo.InvariantCulture)));

var timeSpan = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
var stamp = ((long)(DateTime.UtcNow - timeSpan).TotalSeconds);
_mTimeStamp = Convert.ToInt64(stamp).ToString(CultureInfo.InvariantCulture);

非常感谢。

Twitter API返回401未经授权

0 个答案: