One of the annoying things I have found with .net and NUGet is that I never know what version of anything is installed by default. This can be really frustrating when trying to add things to an existing project.....
我在。net和NUGet中发现的一件烦人的事情是,我不知道默认安装的是什么版本。当尝试向现有的项目添加东西时,这真的很令人沮丧……
Here is my current dilemma.
这是我目前的困境。
I have an MVC 5 project with only MVC on it. This project is massive and the work to move it to another project would take too much time. So, I opened up NUGet and type WebApi and installed the one that came along.
我有一个只有MVC的MVC 5项目。这个项目非常庞大,将它转移到另一个项目将花费太多的时间。于是,我打开NUGet,输入WebApi并安装了随之而来的那个。
Then I created a blank WebApi project with Individual Accounts set up and copied the StartUp code into my current StartUp along with any other configuration that is needed.
然后我创建了一个空白的WebApi项目,其中设置了独立的帐户,并将启动代码复制到当前的启动中,以及需要的任何其他配置。
Then I came to create my AccountController which is just copied straight from the clean project I created. It looks like this:
然后我创建了我的AccountController,它直接从我创建的clean项目中复制。它看起来像这样:
[Authorize]
[RoutePrefix("api/Account")]
public class AccountController : ApiController
{
private const string LocalLoginProvider = "Local";
public AccountController()
: this(Startup.UserManagerFactory(), Startup.OAuthOptions.AccessTokenFormat)
{
}
public AccountController(UserManager<IdentityUser> userManager,
ISecureDataFormat<AuthenticationTicket> accessTokenFormat)
{
UserManager = userManager;
AccessTokenFormat = accessTokenFormat;
}
public UserManager<IdentityUser> UserManager { get; private set; }
public ISecureDataFormat<AuthenticationTicket> AccessTokenFormat { get; private set; }
// GET api/Account/UserInfo
[HostAuthentication(DefaultAuthenticationTypes.ExternalBearer)]
[Route("UserInfo")]
public UserInfoViewModel GetUserInfo()
{
ExternalLoginData externalLogin = ExternalLoginData.FromIdentity(User.Identity as ClaimsIdentity);
return new UserInfoViewModel
{
UserName = User.Identity.GetUserName(),
HasRegistered = externalLogin == null,
LoginProvider = externalLogin != null ? externalLogin.LoginProvider : null
};
}
// POST api/Account/Logout
[Route("Logout")]
public IHttpActionResult Logout()
{
Authentication.SignOut(CookieAuthenticationDefaults.AuthenticationType);
return Ok();
}
// GET api/Account/ManageInfo?returnUrl=%2F&generateState=true
[Route("ManageInfo")]
public async Task<ManageInfoViewModel> GetManageInfo(string returnUrl, bool generateState = false)
{
IdentityUser user = await UserManager.FindByIdAsync(User.Identity.GetUserId());
if (user == null)
{
return null;
}
List<UserLoginInfoViewModel> logins = new List<UserLoginInfoViewModel>();
foreach (IdentityUserLogin linkedAccount in user.Logins)
{
logins.Add(new UserLoginInfoViewModel
{
LoginProvider = linkedAccount.LoginProvider,
ProviderKey = linkedAccount.ProviderKey
});
}
if (user.PasswordHash != null)
{
logins.Add(new UserLoginInfoViewModel
{
LoginProvider = LocalLoginProvider,
ProviderKey = user.UserName,
});
}
return new ManageInfoViewModel
{
LocalLoginProvider = LocalLoginProvider,
UserName = user.UserName,
Logins = logins,
ExternalLoginProviders = GetExternalLogins(returnUrl, generateState)
};
}
// POST api/Account/ChangePassword
[Route("ChangePassword")]
public async Task<IHttpActionResult> ChangePassword(ChangePasswordBindingModel model)
{
if (!ModelState.IsValid)
{
return BadRequest(ModelState);
}
IdentityResult result = await UserManager.ChangePasswordAsync(User.Identity.GetUserId(), model.OldPassword,
model.NewPassword);
IHttpActionResult errorResult = GetErrorResult(result);
if (errorResult != null)
{
return errorResult;
}
return Ok();
}
// POST api/Account/SetPassword
[Route("SetPassword")]
public async Task<IHttpActionResult> SetPassword(SetPasswordBindingModel model)
{
if (!ModelState.IsValid)
{
return BadRequest(ModelState);
}
IdentityResult result = await UserManager.AddPasswordAsync(User.Identity.GetUserId(), model.NewPassword);
IHttpActionResult errorResult = GetErrorResult(result);
if (errorResult != null)
{
return errorResult;
}
return Ok();
}
// POST api/Account/AddExternalLogin
[Route("AddExternalLogin")]
public async Task<IHttpActionResult> AddExternalLogin(AddExternalLoginBindingModel model)
{
if (!ModelState.IsValid)
{
return BadRequest(ModelState);
}
Authentication.SignOut(DefaultAuthenticationTypes.ExternalCookie);
AuthenticationTicket ticket = AccessTokenFormat.Unprotect(model.ExternalAccessToken);
if (ticket == null || ticket.Identity == null || (ticket.Properties != null
&& ticket.Properties.ExpiresUtc.HasValue
&& ticket.Properties.ExpiresUtc.Value < DateTimeOffset.UtcNow))
{
return BadRequest("External login failure.");
}
ExternalLoginData externalData = ExternalLoginData.FromIdentity(ticket.Identity);
if (externalData == null)
{
return BadRequest("The external login is already associated with an account.");
}
IdentityResult result = await UserManager.AddLoginAsync(User.Identity.GetUserId(),
new UserLoginInfo(externalData.LoginProvider, externalData.ProviderKey));
IHttpActionResult errorResult = GetErrorResult(result);
if (errorResult != null)
{
return errorResult;
}
return Ok();
}
// POST api/Account/RemoveLogin
[Route("RemoveLogin")]
public async Task<IHttpActionResult> RemoveLogin(RemoveLoginBindingModel model)
{
if (!ModelState.IsValid)
{
return BadRequest(ModelState);
}
IdentityResult result;
if (model.LoginProvider == LocalLoginProvider)
{
result = await UserManager.RemovePasswordAsync(User.Identity.GetUserId());
}
else
{
result = await UserManager.RemoveLoginAsync(User.Identity.GetUserId(),
new UserLoginInfo(model.LoginProvider, model.ProviderKey));
}
IHttpActionResult errorResult = GetErrorResult(result);
if (errorResult != null)
{
return errorResult;
}
return Ok();
}
// GET api/Account/ExternalLogin
[OverrideAuthentication]
[HostAuthentication(DefaultAuthenticationTypes.ExternalCookie)]
[AllowAnonymous]
[Route("ExternalLogin", Name = "ExternalLogin")]
public async Task<IHttpActionResult> GetExternalLogin(string provider, string error = null)
{
if (error != null)
{
return Redirect(Url.Content("~/") + "#error=" + Uri.EscapeDataString(error));
}
if (!User.Identity.IsAuthenticated)
{
return new ChallengeResult(provider, this);
}
ExternalLoginData externalLogin = ExternalLoginData.FromIdentity(User.Identity as ClaimsIdentity);
if (externalLogin == null)
{
return InternalServerError();
}
if (externalLogin.LoginProvider != provider)
{
Authentication.SignOut(DefaultAuthenticationTypes.ExternalCookie);
return new ChallengeResult(provider, this);
}
IdentityUser user = await UserManager.FindAsync(new UserLoginInfo(externalLogin.LoginProvider,
externalLogin.ProviderKey));
bool hasRegistered = user != null;
if (hasRegistered)
{
Authentication.SignOut(DefaultAuthenticationTypes.ExternalCookie);
ClaimsIdentity oAuthIdentity = await UserManager.CreateIdentityAsync(user,
OAuthDefaults.AuthenticationType);
ClaimsIdentity cookieIdentity = await UserManager.CreateIdentityAsync(user,
CookieAuthenticationDefaults.AuthenticationType);
AuthenticationProperties properties = ApplicationOAuthProvider.CreateProperties(user.UserName);
Authentication.SignIn(properties, oAuthIdentity, cookieIdentity);
}
else
{
IEnumerable<Claim> claims = externalLogin.GetClaims();
ClaimsIdentity identity = new ClaimsIdentity(claims, OAuthDefaults.AuthenticationType);
Authentication.SignIn(identity);
}
return Ok();
}
// GET api/Account/ExternalLogins?returnUrl=%2F&generateState=true
[AllowAnonymous]
[Route("ExternalLogins")]
public IEnumerable<ExternalLoginViewModel> GetExternalLogins(string returnUrl, bool generateState = false)
{
IEnumerable<AuthenticationDescription> descriptions = Authentication.GetExternalAuthenticationTypes();
List<ExternalLoginViewModel> logins = new List<ExternalLoginViewModel>();
string state;
if (generateState)
{
const int strengthInBits = 256;
state = RandomOAuthStateGenerator.Generate(strengthInBits);
}
else
{
state = null;
}
foreach (AuthenticationDescription description in descriptions)
{
ExternalLoginViewModel login = new ExternalLoginViewModel
{
Name = description.Caption,
Url = Url.Route("ExternalLogin", new
{
provider = description.AuthenticationType,
response_type = "token",
client_id = Startup.PublicClientId,
redirect_uri = new Uri(Request.RequestUri, returnUrl).AbsoluteUri,
state = state
}),
State = state
};
logins.Add(login);
}
return logins;
}
// POST api/Account/Register
[AllowAnonymous]
[Route("Register")]
public async Task<IHttpActionResult> Register(RegisterBindingModel model)
{
if (!ModelState.IsValid)
{
return BadRequest(ModelState);
}
IdentityUser user = new IdentityUser
{
UserName = model.UserName
};
IdentityResult result = await UserManager.CreateAsync(user, model.Password);
IHttpActionResult errorResult = GetErrorResult(result);
if (errorResult != null)
{
return errorResult;
}
return Ok();
}
// POST api/Account/RegisterExternal
[OverrideAuthentication]
[HostAuthentication(DefaultAuthenticationTypes.ExternalBearer)]
[Route("RegisterExternal")]
public async Task<IHttpActionResult> RegisterExternal(RegisterExternalBindingModel model)
{
if (!ModelState.IsValid)
{
return BadRequest(ModelState);
}
ExternalLoginData externalLogin = ExternalLoginData.FromIdentity(User.Identity as ClaimsIdentity);
if (externalLogin == null)
{
return InternalServerError();
}
IdentityUser user = new IdentityUser
{
UserName = model.UserName
};
user.Logins.Add(new IdentityUserLogin
{
LoginProvider = externalLogin.LoginProvider,
ProviderKey = externalLogin.ProviderKey
});
IdentityResult result = await UserManager.CreateAsync(user);
IHttpActionResult errorResult = GetErrorResult(result);
if (errorResult != null)
{
return errorResult;
}
return Ok();
}
protected override void Dispose(bool disposing)
{
if (disposing)
{
UserManager.Dispose();
}
base.Dispose(disposing);
}
#region Helpers
private IAuthenticationManager Authentication
{
get { return Request.GetOwinContext().Authentication; }
}
private IHttpActionResult GetErrorResult(IdentityResult result)
{
if (result == null)
{
return InternalServerError();
}
if (!result.Succeeded)
{
if (result.Errors != null)
{
foreach (string error in result.Errors)
{
ModelState.AddModelError("", error);
}
}
if (ModelState.IsValid)
{
// No ModelState errors are available to send, so just return an empty BadRequest.
return BadRequest();
}
return BadRequest(ModelState);
}
return null;
}
private class ExternalLoginData
{
public string LoginProvider { get; set; }
public string ProviderKey { get; set; }
public string UserName { get; set; }
public IList<Claim> GetClaims()
{
IList<Claim> claims = new List<Claim>();
claims.Add(new Claim(ClaimTypes.NameIdentifier, ProviderKey, null, LoginProvider));
if (UserName != null)
{
claims.Add(new Claim(ClaimTypes.Name, UserName, null, LoginProvider));
}
return claims;
}
public static ExternalLoginData FromIdentity(ClaimsIdentity identity)
{
if (identity == null)
{
return null;
}
Claim providerKeyClaim = identity.FindFirst(ClaimTypes.NameIdentifier);
if (providerKeyClaim == null || String.IsNullOrEmpty(providerKeyClaim.Issuer)
|| String.IsNullOrEmpty(providerKeyClaim.Value))
{
return null;
}
if (providerKeyClaim.Issuer == ClaimsIdentity.DefaultIssuer)
{
return null;
}
return new ExternalLoginData
{
LoginProvider = providerKeyClaim.Issuer,
ProviderKey = providerKeyClaim.Value,
UserName = identity.FindFirstValue(ClaimTypes.Name)
};
}
}
private static class RandomOAuthStateGenerator
{
private static RandomNumberGenerator _random = new RNGCryptoServiceProvider();
public static string Generate(int strengthInBits)
{
const int bitsPerByte = 8;
if (strengthInBits % bitsPerByte != 0)
{
throw new ArgumentException("strengthInBits must be evenly divisible by 8.", "strengthInBits");
}
int strengthInBytes = strengthInBits / bitsPerByte;
byte[] data = new byte[strengthInBytes];
_random.GetBytes(data);
return HttpServerUtility.UrlTokenEncode(data);
}
}
#endregion
}
Now, we can see that because it is using RoutePrefix that his is definitely version 2+ of WebApi. My problem is that code does not compile. It states:
现在,我们可以看到,因为它使用的是RoutePrefix,他的绝对是WebApi的2+版本。我的问题是代码不能编译。州:
The type or namespace name 'HostAuthenticationAttribute' could not be found (are you missing a using directive or an assembly reference?)
无法找到类型或名称空间名称“HostAuthenticationAttribute”(是否缺少using指令或程序集引用?)
Looking at my clean project, I can see that this class resides in System.Web.Http.Owin. The problem is, I don't have that reference in my main project and I have no idea how to install it.
查看我的clean项目,我可以看到这个类驻留在System.Web.Http.Owin中。问题是,我的主项目中没有这个参考,我不知道如何安装它。
I have tried installing all the other different versions of the WebApi to no avail.
我已经尝试安装所有其他不同版本的WebApi,但没有效果。
Surely someone has had this issue before?
肯定有人以前有过这个问题吧?
1 个解决方案
#1
34
I experienced the same error when trying to upgrade my WebAPI project to version 2.0. Installing the nuget package Microsoft.AspNet.WebApi.Owin
resolved the missing reference.
当我试图将WebAPI项目升级到2.0版本时,也遇到了同样的错误。安装nuget包Microsoft.AspNet.WebApi。Owin解决了丢失的引用。
Install-Package Microsoft.AspNet.WebApi.Owin
#1
34
I experienced the same error when trying to upgrade my WebAPI project to version 2.0. Installing the nuget package Microsoft.AspNet.WebApi.Owin
resolved the missing reference.
当我试图将WebAPI项目升级到2.0版本时,也遇到了同样的错误。安装nuget包Microsoft.AspNet.WebApi。Owin解决了丢失的引用。
Install-Package Microsoft.AspNet.WebApi.Owin