[英]The 'await' operator can only be used within an async > method
I have the following controller: 我有以下控制器:
[Authorize]
public class SetupController : ApiController
{
[HttpPost]
public Task async SetupPartnerPackAsync(SetupInformation info)
{
if (info.SslCertificateGenerate)
{
SetupManager.CreateX509Certificate(info);
}
else
{
SetupManager.LoadX509Certificate(info);
}
info.SslCertificateThumbprint = SetupManager.GetX509CertificateThumbprint(info);
info.AzureAppKeyCredential = SetupManager.GetX509CertificateInformation(info);
await SetupManager.RegisterAzureADApplication(info);
}
}
But I have the following 2 error which seems simple: 但是我有以下两个似乎很简单的错误:
Severity Code Description Project File Line Suppression State Error CS1520 Method must have a return type InnovationInABoxWebApi H:\\InnovationInABoxWebApi\\InnovationInABoxWebApi\\Controllers\\SetupController.cs 24 Active 严重性代码说明项目文件行抑制状态错误CS1520方法必须具有返回类型InnovationInABoxWebApi H:\\ InnovationInABoxWebApi \\ InnovationInABoxWebApi \\ Controllers \\ SetupController.cs 24有效
Severity Code Description Project File Line Suppression State Error CS4033 The 'await' operator can only be used within an async method. 严重性代码说明项目文件行抑制状态错误CS4033“ await”运算符只能在异步方法中使用。 Consider marking this method with the 'async' modifier and changing its return type to 'Task'. 考虑使用“异步”修饰符标记该方法,并将其返回类型更改为“任务”。 InnovationInABoxWebApi H:\\InnovationInABoxWebApi\\InnovationInABoxWebApi\\Controllers\\SetupController.cs 39 Active InnovationInABoxWebApi H:\\ InnovationInABoxWebApi \\ InnovationInABoxWebApi \\ Controllers \\ SetupController.cs 39有效
However I am not sure how to fix this, as the operation can take some time to complete, it really needs to be asybnc 但是我不确定如何解决此问题,因为该操作可能需要一些时间才能完成,所以确实需要asybnc
and the setupmanager 和setupmanager
using CERTENROLLLib;
using Microsoft.Identity.Client;
using Microsoft.Online.SharePoint.TenantAdministration;
using Microsoft.SharePoint.Client;
using Newtonsoft.Json;
using OfficeDevPnP.Core;
using OfficeDevPnP.Core.Entities;
using OfficeDevPnP.Core.Framework.Provisioning.Model;
using OfficeDevPnP.Core.Framework.Provisioning.ObjectHandlers;
using OfficeDevPnP.Core.Framework.Provisioning.Providers.Xml;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Configuration;
using System.IO;
using System.Linq;
using System.Resources;
using System.Security.Cryptography.X509Certificates;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Web;
using System.Xml.Linq;
namespace InnovationInABoxWebApi.Components
{
public static class SetupManager
{
public static String GetX509CertificateThumbprint(SetupInformation info)
{
var certificate = info.AuthenticationCertificate;
return (certificate.Thumbprint.ToUpper());
}
public static String GetX509CertificateInformation(SetupInformation info)
{
// var basePath = String.Format(@"{0}..\..\..\..\Scripts\", AppDomain.CurrentDomain.BaseDirectory);
var certificate = info.AuthenticationCertificate;
//var certificate = new X509Certificate2();
//if (info.SslCertificateGenerate)
//{
// certificate.Import($@"{basePath}{info.SslCertificateCommonName}.cer");
//}
//else
//{
// certificate = new X509Certificate2(info.SslCertificateFile, info.SslCertificatePassword);
//}
var rawCert = certificate.GetRawCertData();
var base64Cert = System.Convert.ToBase64String(rawCert);
var rawCertHash = certificate.GetCertHash();
var base64CertHash = System.Convert.ToBase64String(rawCertHash);
var KeyId = System.Guid.NewGuid().ToString();
var keyCredential =
"{" +
"\"customKeyIdentifier\": \"" + base64CertHash + "\"," +
"\"keyId\": \"" + KeyId + "\"," +
"\"type\": \"AsymmetricX509Cert\"," +
"\"usage\": \"Verify\"," +
"\"key\": \"" + base64Cert + "\"" +
"}";
return (keyCredential);
}
public static void CreateX509Certificate(SetupInformation info)
{
var certificate = CreateSelfSignedCertificate(info.SslCertificateCommonName.ToLower(),
info.SslCertificateStartDate, info.SslCertificateEndDate, info.SslCertificatePassword);
SaveCertificateFiles(info, certificate);
}
public static void LoadX509Certificate(SetupInformation info)
{
var certificate = new X509Certificate2(info.SslCertificateFile, info.SslCertificatePassword);
info.AuthenticationCertificate = certificate;
info.SslCertificateCommonName = certificate.SubjectName.Name;
}
public static void SaveCertificateFiles(SetupInformation info, X509Certificate2 certificate)
{
info.AuthenticationCertificate = certificate;
//var basePath = String.Format(@"{0}..\..\..\..\Scripts\", AppDomain.CurrentDomain.BaseDirectory);
//info.SslCertificateFile = $@"{basePath}{info.SslCertificateCommonName}.pfx";
//var pfx = certificate.Export(X509ContentType.Pfx, info.SslCertificatePassword);
//System.IO.File.WriteAllBytes(info.SslCertificateFile, pfx);
//var cer = certificate.Export(X509ContentType.Cert);
//System.IO.File.WriteAllBytes($@"{basePath}{info.SslCertificateCommonName}.cer", cer);
}
public static X509Certificate2 CreateSelfSignedCertificate(string subjectName, DateTime startDate, DateTime endDate, String password)
{
// Create DistinguishedName for subject and issuer
var name = new CX500DistinguishedName();
name.Encode("CN=" + subjectName, X500NameFlags.XCN_CERT_NAME_STR_NONE);
// Create a new Private Key for the certificate
CX509PrivateKey privateKey = new CX509PrivateKey();
privateKey.ProviderName = "Microsoft RSA SChannel Cryptographic Provider";
privateKey.KeySpec = X509KeySpec.XCN_AT_KEYEXCHANGE;
privateKey.Length = 2048;
privateKey.SecurityDescriptor = "D:PAI(A;;0xd01f01ff;;;SY)(A;;0xd01f01ff;;;BA)(A;;0x80120089;;;NS)";
privateKey.MachineContext = true;
privateKey.ExportPolicy = X509PrivateKeyExportFlags.XCN_NCRYPT_ALLOW_EXPORT_FLAG;
privateKey.Create();
// Define the hashing algorithm
var serverauthoid = new CObjectId();
serverauthoid.InitializeFromValue("1.3.6.1.5.5.7.3.1"); // Server Authentication
var ekuoids = new CObjectIds();
ekuoids.Add(serverauthoid);
var ekuext = new CX509ExtensionEnhancedKeyUsage();
ekuext.InitializeEncode(ekuoids);
// Create the self signing request
var cert = new CX509CertificateRequestCertificate();
cert.InitializeFromPrivateKey(X509CertificateEnrollmentContext.ContextMachine, privateKey, String.Empty);
cert.Subject = name;
cert.Issuer = cert.Subject;
cert.NotBefore = startDate;
cert.NotAfter = endDate;
cert.X509Extensions.Add((CX509Extension)ekuext);
cert.Encode();
// Enroll the certificate
var enroll = new CX509Enrollment();
enroll.InitializeFromRequest(cert);
string certData = enroll.CreateRequest(EncodingType.XCN_CRYPT_STRING_BASE64HEADER);
enroll.InstallResponse(InstallResponseRestrictionFlags.AllowUntrustedCertificate,
certData, EncodingType.XCN_CRYPT_STRING_BASE64HEADER, String.Empty);
var base64encoded = enroll.CreatePFX(password, PFXExportOptions.PFXExportChainWithRoot);
// Instantiate the target class with the PKCS#12 data
return new X509Certificate2(
System.Convert.FromBase64String(base64encoded), password,
System.Security.Cryptography.X509Certificates.X509KeyStorageFlags.Exportable);
}
public async static Task RegisterAzureADApplication(SetupInformation info)
{
// Fix the App URL
if (!info.AzureWebAppUrl.EndsWith("/"))
{
info.AzureWebAppUrl = info.AzureWebAppUrl + "/";
}
// Load the App Manifest template
//Stream stream = typeof(SetupManager)
// .Assembly
// .GetManifestResourceStream("OfficeDevPnP.PartnerPack.Setup.Resources.azure-ad-app-manifest.json");
using (StreamReader sr = new StreamReader("Resources\azure-ad-app-manifest.json"))
{
// Get the JSON manifest
var jsonApplication = sr.ReadToEnd();
var application = JsonConvert.DeserializeObject<AzureAdApplication>(jsonApplication);
var keyCredential = JsonConvert.DeserializeObject<KeyCredential>(info.AzureAppKeyCredential);
application.displayName = info.ApplicationName;
application.homepage = info.AzureWebAppUrl;
application.identifierUris = new List<String>();
application.identifierUris.Add(info.ApplicationUniqueUri);
application.keyCredentials = new List<KeyCredential>();
application.keyCredentials.Add(keyCredential);
application.replyUrls = new List<String>();
application.replyUrls.Add(info.AzureWebAppUrl);
// Generate the Application Shared Secret
var startDate = DateTime.Now;
Byte[] bytes = new Byte[32];
using (var rand = System.Security.Cryptography.RandomNumberGenerator.Create())
{
rand.GetBytes(bytes);
}
info.AzureAppSharedSecret = System.Convert.ToBase64String(bytes);
application.passwordCredentials = new List<object>();
application.passwordCredentials.Add(new AzureAdApplicationPasswordCredential
{
CustomKeyIdentifier = null,
StartDate = startDate.ToString("o"),
EndDate = startDate.AddYears(2).ToString("o"),
KeyId = Guid.NewGuid().ToString(),
Value = info.AzureAppSharedSecret,
});
// Get an Access Token to create the application via Microsoft Graph
var office365AzureADAccessToken = await AzureManagementUtility.GetAccessTokenSilentAsync(
AzureManagementUtility.MicrosoftGraphResourceId,
ConfigurationManager.AppSettings["O365:ClientId"]);
var azureAdApplicationCreated = false;
// Create the Azure AD Application
try
{
await CreateAzureADApplication(info, application, office365AzureADAccessToken);
azureAdApplicationCreated = true;
}
catch (ApplicationException ex)
{
var graphError = JsonConvert.DeserializeObject<GraphError>(((HttpException)ex.InnerException).Message);
if (graphError != null && graphError.error.code == "Request_BadRequest" &&
graphError.error.message.Contains("identifierUris already exists"))
{
// We need to remove the existing application
// Thus, retrieve it
String jsonApplications = await HttpHelper.MakeGetRequestForStringAsync(
String.Format("{0}applications?$filter=identifierUris/any(c:c+eq+'{1}')",
AzureManagementUtility.MicrosoftGraphBetaBaseUri,
HttpUtility.UrlEncode(info.ApplicationUniqueUri)),
office365AzureADAccessToken);
var applications = JsonConvert.DeserializeObject<AzureAdApplications>(jsonApplications);
var applicationToUpdate = applications.Applications.FirstOrDefault();
if (applicationToUpdate != null)
{
// Remove it
await HttpHelper.MakeDeleteRequestAsync(
String.Format("{0}applications/{1}",
AzureManagementUtility.MicrosoftGraphBetaBaseUri,
applicationToUpdate.Id),
office365AzureADAccessToken);
// And add it again
await CreateAzureADApplication(info, application, office365AzureADAccessToken);
azureAdApplicationCreated = true;
}
}
}
if (azureAdApplicationCreated)
{
// TODO: We should upload the logo
// property mainLogo: stream of the application via PATCH
}
}
}
public static async Task CreateAzureADApplication(SetupInformation info, AzureAdApplication application, string office365AzureADAccessToken)
{
String jsonResponse = await HttpHelper.MakePostRequestForStringAsync(
String.Format("{0}applications",
AzureManagementUtility.MicrosoftGraphBetaBaseUri),
application,
"application/json", office365AzureADAccessToken);
var azureAdApplication = JsonConvert.DeserializeObject<AzureAdApplication>(jsonResponse);
info.AzureAppClientId = azureAdApplication.AppId.HasValue ? azureAdApplication.AppId.Value : Guid.Empty;
}
}
}
You are defining the method with async
word after the return type Task
, async
must be before Task
. 您要在返回类型Task
之后用async
字定义方法, async
必须在Task
之前。
public async Task SetupPartnerPackAsync(SetupInformation info)
{
.
.
.
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