我一直在拉我的头发推测我们有什么错在这里不用，显然我一直没能到。 我尝试创建一个基本的结构，在.NET（C＃）Twitter的API在OAuth的工作，但什么是错的，我看不出那是什么。
例如，当我发送，以便获得一个请求令牌请求 ，我回来401未授权响应返回与消息如下：
无法验证的OAuth签名和令牌
我用它来创建签名如下签名基地（我代替我的实际消费主要与虚假值）：
POST＆HTTP％3A％2F％2Fapi.twitter.com％2Foauth％2Frequest_token＆oauth_callback％3Dhttp％3A％2F％2Flocalhost％3A44444％2Faccount％2Fauth％26oauth_consumer_key％3XXXXXXXXXXXXXXXXXXXXXXXXXXX％26oauth_nonce％3DNjM0NzkyMzk0OTk2ODEyNTAz％26oauth_signature_method％3DHMAC-SHA1％26oauth_timestamp％3D1343631900％26oauth_version％ 3D1.0
签名密钥只能由我的用户端密钥，并鉴于一个符号的，我没有一个令牌密钥产品尚未推出（再次，我代替我的实际消费主要与虚假值）：
signingKey：XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX＆
最后，我结束了以下授权标题（再次，虚拟消费密钥）：
的OAuth oauth_callback = “HTTP％3A％2F％2Flocalhost％3A44444％2Faccount％2Fauth”，oauth_consumer_key = “XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX”，oauth_nonce = “NjM0NzkyMzk0OTk2ODEyNTAz”，oauth_signature_method = “HMAC-SHA1”，oauth_timestamp = “1343631900”，oauth_version = “1.0” ，oauth_signature = “ttLvZ2Xzq4CHt％2BNM4pW7X4h1wRA％3D”
我用这个代码如下（这是一个有点长，但我会在这里，而粘贴给予要点URL或东西代替）：
public class OAuthMessageHandler : DelegatingHandler {
private const string OAuthConsumerKey = "oauth_consumer_key";
private const string OAuthNonce = "oauth_nonce";
private const string OAuthSignature = "oauth_signature";
private const string OAuthSignatureMethod = "oauth_signature_method";
private const string OAuthTimestamp = "oauth_timestamp";
private const string OAuthToken = "oauth_token";
private const string OAuthVersion = "oauth_version";
private const string OAuthCallback = "oauth_callback";
private const string HMACSHA1SignatureType = "HMAC-SHA1";
private readonly OAuthState _oAuthState;
public OAuthMessageHandler(OAuthCredential oAuthCredential, OAuthSignatureEntity signatureEntity,
IEnumerable<KeyValuePair<string, string>> parameters, HttpMessageHandler innerHandler) : base(innerHandler) {
_oAuthState = new OAuthState() {
Credential = oAuthCredential,
SignatureEntity = signatureEntity,
Parameters = parameters,
Nonce = GenerateNonce(),
SignatureMethod = GetOAuthSignatureMethod(),
Timestamp = GetTimestamp(),
Version = GetVersion()
};
}
protected override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) {
//add the auth header
request.Headers.Authorization = new AuthenticationHeaderValue(
"OAuth", GenerateAuthHeader(_oAuthState, request)
);
return base.SendAsync(request, cancellationToken);
}
private string GetTimestamp() {
TimeSpan timeSpan = DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
return Convert.ToInt64(timeSpan.TotalSeconds).ToString();
}
private string GetVersion() {
return "1.0";
}
private string GetOAuthSignatureMethod() {
return HMACSHA1SignatureType;
}
private string GenerateNonce() {
return Convert.ToBase64String(new ASCIIEncoding().GetBytes(DateTime.Now.Ticks.ToString()));
}
private string GenerateSignature(OAuthState oAuthState, HttpRequestMessage request) {
//https://dev.twitter.com/docs/auth/creating-signature
//http://garyshortblog.wordpress.com/2011/02/11/a-twitter-oauth-example-in-c/
SortedDictionary<string, string> signatureCollection = new SortedDictionary<string, string>();
//Required for all requests
signatureCollection.Add(OAuthConsumerKey, oAuthState.Credential.ConsumerKey);
signatureCollection.Add(OAuthNonce, oAuthState.Nonce);
signatureCollection.Add(OAuthVersion, oAuthState.Version);
signatureCollection.Add(OAuthTimestamp, oAuthState.Timestamp);
signatureCollection.Add(OAuthSignatureMethod, oAuthState.SignatureMethod);
//Parameters
if (oAuthState.Parameters != null) {
oAuthState.Parameters.ForEach(x => signatureCollection.Add(x.Key, x.Value));
}
//Optionals
if (!string.IsNullOrEmpty(oAuthState.Credential.Token))
signatureCollection.Add(OAuthToken, oAuthState.Credential.Token);
if (!string.IsNullOrEmpty(oAuthState.Credential.CallbackUrl))
signatureCollection.Add(OAuthCallback, oAuthState.Credential.CallbackUrl);
//Build the signature
StringBuilder strBuilder = new StringBuilder();
strBuilder.AppendFormat("{0}&", request.Method.Method.ToUpper());
strBuilder.AppendFormat("{0}&", Uri.EscapeDataString(request.RequestUri.ToString()));
signatureCollection.ForEach(x =>
strBuilder.Append(
Uri.EscapeDataString(string.Format("{0}={1}&", x.Key, x.Value))
)
);
//Remove the trailing ambersand char from the signatureBase.
//Remember, it's been urlEncoded so you have to remove the
//last 3 chars - %26
string baseSignatureString = strBuilder.ToString();
baseSignatureString = baseSignatureString.Substring(0, baseSignatureString.Length - 3);
//Build the signing key
string signingKey = string.Format(
"{0}&{1}", Uri.EscapeDataString(oAuthState.SignatureEntity.ConsumerSecret),
string.IsNullOrEmpty(oAuthState.SignatureEntity.OAuthTokenSecret) ? "" : Uri.EscapeDataString(oAuthState.SignatureEntity.OAuthTokenSecret)
);
//Sign the request
using (HMACSHA1 hashAlgorithm = new HMACSHA1(new ASCIIEncoding().GetBytes(signingKey))) {
return Convert.ToBase64String(
hashAlgorithm.ComputeHash(
new ASCIIEncoding().GetBytes(baseSignatureString)
)
);
}
}
private string GenerateAuthHeader(OAuthState oAuthState, HttpRequestMessage request) {
SortedDictionary<string, string> sortedDictionary = new SortedDictionary<string, string>();
sortedDictionary.Add(OAuthNonce, Uri.EscapeDataString(oAuthState.Nonce));
sortedDictionary.Add(OAuthSignatureMethod, Uri.EscapeDataString(oAuthState.SignatureMethod));
sortedDictionary.Add(OAuthTimestamp, Uri.EscapeDataString(oAuthState.Timestamp));
sortedDictionary.Add(OAuthConsumerKey, Uri.EscapeDataString(oAuthState.Credential.ConsumerKey));
sortedDictionary.Add(OAuthVersion, Uri.EscapeDataString(oAuthState.Version));
if (!string.IsNullOrEmpty(_oAuthState.Credential.Token))
sortedDictionary.Add(OAuthToken, Uri.EscapeDataString(oAuthState.Credential.Token));
if (!string.IsNullOrEmpty(_oAuthState.Credential.CallbackUrl))
sortedDictionary.Add(OAuthCallback, Uri.EscapeDataString(oAuthState.Credential.CallbackUrl));
StringBuilder strBuilder = new StringBuilder();
var valueFormat = "{0}=\"{1}\",";
sortedDictionary.ForEach(x => {
strBuilder.AppendFormat(valueFormat, x.Key, x.Value);
});
//oAuth parameters has to be sorted before sending, but signature has to be at the end of the authorization request
//http://stackoverflow.com/questions/5591240/acquire-twitter-request-token-failed
strBuilder.AppendFormat(valueFormat, OAuthSignature, Uri.EscapeDataString(GenerateSignature(oAuthState, request)));
return strBuilder.ToString().TrimEnd(',');
}
private class OAuthState {
public OAuthCredential Credential { get; set; }
public OAuthSignatureEntity SignatureEntity { get; set; }
public IEnumerable<KeyValuePair<string, string>> Parameters { get; set; }
public string Nonce { get; set; }
public string Timestamp { get; set; }
public string Version { get; set; }
public string SignatureMethod { get; set; }
}
}
还有的混合新的.NET HttpClient在这里，但授权头生成的代码是明确的理解。
所以，你会在这里是我的问题，我缺少什么？
编辑：
我给它不同的端点（如/1/account/update_profile.json）一试，和它的作品的时候我送他的尸体不需要编码的请求。 如： location=Marmaris的作品，但location=Marmaris, Turkey不能使用，即使我对其进行编码，使用工作Uri.EscapeDataString 。
编辑：
我给它通过Twitter OAuth工具一试，看看是否有我的签名基地和Twitter的之间的任何特别的差异，我可以看到Twitter的编码比我的不同。 例如，微博产生location%3DMarmaris%252C%2520Turkey值location=Marmaris, Turkey但我产生是location%3DMarmaris%2C%20Turkey 。
