我希望通过服务帐户获取Google Analytics的数据.
当我第一次启动应用程序时,一切正常,我可以访问数据.但是,当我第二次启动应用程序时,出现以下错误:“系统找不到指定的路径”.你有个主意吗?我以为它可以锁定.
当我第一次启动应用程序时,一切正常,我可以访问数据.但是,当我第二次启动应用程序时,出现以下错误:“系统找不到指定的路径”.你有个主意吗?我以为它可以锁定.
这是我的源代码:
public static String GetAccesstoken(string clientIdEMail,string keyFilePath,String scope) { // certificate var certificate = new X509Certificate2(keyFilePath,"notasecret",X509KeyStorageFlags.MachineKeySet | X509KeyStorageFlags.Exportable); // header var header = new { typ = "JWT",alg = "RS256" }; // claimset var times = GetExpiryAndissueDate(); var claimset = new { iss = clientIdEMail,scope = scope,aud = "https://accounts.google.com/o/oauth2/token",iat = times[0],exp = times[1],}; JavaScriptSerializer ser = new JavaScriptSerializer(); // encoded header var headerSerialized = ser.Serialize(header); var headerBytes = Encoding.UTF8.GetBytes(headerSerialized); var headerEncoded = Convert.ToBase64String(headerBytes); // encoded claimset var claimsetSerialized = ser.Serialize(claimset); var claimsetBytes = Encoding.UTF8.GetBytes(claimsetSerialized); var claimsetEncoded = Convert.ToBase64String(claimsetBytes); // input var input = headerEncoded + "." + claimsetEncoded; var inputBytes = Encoding.UTF8.GetBytes(input); // signiture var rsa = certificate.PrivateKey as RSACryptoServiceProvider; var cspParam = new CspParameters { KeyContainerName = rsa.CspKeyContainerInfo.KeyContainerName,KeyNumber = rsa.CspKeyContainerInfo.KeyNumber == KeyNumber.Exchange ? 1 : 2,Flags = CspProviderFlags.UseMachineKeyStore }; var aescsp = new RSACryptoServiceProvider(1024,cspParam) { PersistKeyInCsp = false }; var signatureBytes = aescsp.SignData(inputBytes,"SHA256"); var signatureEncoded = Convert.ToBase64String(signatureBytes); // jwt var jwt = headerEncoded + "." + claimsetEncoded + "." + signatureEncoded; var client = new WebClient(); client.Encoding = Encoding.UTF8; var uri = "https://accounts.google.com/o/oauth2/token"; var content = new NameValueCollection(); content["assertion"] = jwt; content["grant_type"] = "urn:ietf:params:oauth:grant-type:jwt-bearer"; string response = Encoding.UTF8.GetString(client.UploadValues(uri,"POST",content)); JsonGoogleResponse result = (ser.Deserialize<JsonGoogleResponse>(response)); return result.access_token; }
这是堆栈:
à System.Security.Cryptography.CryptographicException.ThrowCryptogaphicException(Int32 hr) à System.Security.Cryptography.SafeProvHandle._FreeCSP(IntPtr pProvCtx) à System.Security.Cryptography.SafeProvHandle.ReleaseHandle() à System.Runtime.InteropServices.SafeHandle.InternalFinalize() à System.Runtime.InteropServices.SafeHandle.dispose(Boolean disposing) à System.Runtime.InteropServices.SafeHandle.Finalize()
解决方法
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