目录

前言

本篇文章主要是讲解葫芦藤项目中对IdentityServer的实践使用,为了使您对本篇文章中所讲述的内容有深刻的认识,并且在阅读时避免感到乏味,文中的内容不会涉及太多的基础理论知识,而更多的是采用动手实践的方式进行讲解,所以在阅读此篇文章前假定您已经掌握了OAuth2.0的基础知识,如您事先并未了解OAuth2.0,请参阅一下阮一峰老师的文章《理解OAuth2.0》, ASP.NET Core 认证与授权,可以看看博客 雨夜朦胧,另外IdentityServer的相关文章也可以参考博客 晓晨Master

葫芦藤前端地址:https://account.suuyuu.cn (验证码获取后,输入123456即可)

葫芦藤后端地址:https://account-web.suuyuu.cn

葫芦藤源码地址:https://github.com/fuluteam/fulusso (帮忙点个小星星哦)

团队博文地址:https://www.cnblogs.com/fulu

签名证书(Signing Credential)

IdentityServer支持X.509证书(包括原始文件和对Windows证书存储库的引用)、RSA密钥和EC密钥,用于令牌签名和验证。每个密钥都可以配置一个(兼容的)签名算法,如RS256、RS384、RS512、PS256、PS384、PS512、ES256、ES384或ES512。

通常情况下,我们使用的是针对开发场景创建的临时证书 AddDeveloperSigningCredential,

生产环境怎么办呢?IdentityServer还提供了AddSigningCredential用来装载证书文件,

为此我们需要准备一个X.509证书,下面是在控制台项目中用于生成证书的代码,完整代码请参考项目:https://github.com/fuluteam/ICH.BouncyCastle

//颁发者DN
var issuer = new X509Name(
new ArrayList{X509Name.C,X509Name.O,X509Name.OU,X509Name.L,X509Name.ST},
new Hashtable{[X509Name.C] = "CN",[X509Name.O] = "Fulu Newwork",[X509Name.OU] = "Fulu RSA CA 2020",[X509Name.L] = "Wuhan",[X509Name.ST] = "Hubei"});
//使用者DN
var subject = new X509Name(new ArrayList{X509Name.C,X509Name.O,X509Name.CN}, new Hashtable {[X509Name.C] = "CN",[X509Name.O] = "ICH",[X509Name.CN] = "*.fulu.com"}); //生成证书文件
CertificateGenerator.GenerateCertificate(newCertificateGenerator.GenerateCertificateOptions { Path = "mypfx.pfx",Issuer = issuer, Subject = subject });

执行代码后,在项目编译输出目录中,会看到一个mypfx.pfx的文件,此时我们的证书就创建成功啦。

接着怎么使用呢,看下面代码:

var certificate2 = new X509Certificate2("mypfx.pfx", "password", X509KeyStorageFlags.Exportable);
identityServerBuilder.AddSigningCredential(certificate2);

大家可能会问,葫芦藤中怎么不是这么写的呢,其实葫芦藤项目中是将证书文件的流数据转成了二进制字符串,这样就可以写在配置文件中了:

using (var fs = new FileStream(options.Path, FileMode.Open))
{
var bytes = new byte[fs.Length];
fs.Read(bytes, 0, bytes.Length);
var pfxHexString = Hex.ToHexString(bytes);
}

然后在这么使用:

identityServerBuilder.AddSigningCredential(new X509Certificate2(Hex.Decode(appSettings.X509RawCertData), appSettings.X509CertPwd));

客户端存储(Client Store)

在葫芦藤项目中,我们创建了一个ClientStore类,继承自接口IClientStore,实现其方法代码如下:

public class ClientStore : IClientStore
{
private readonly IClientCacheStrategy _clientInCacheRepository; public ClientStore(IClientCacheStrategy clientInCacheRepository)
{
_clientInCacheRepository = clientInCacheRepository;
}
public async Task<Client> FindClientByIdAsync(string clientId)
{ var clientEntity = await _clientInCacheRepository.GetClientByIdAsync(clientId.ToInt32());
if (clientEntity == null)
{
return null;
}
return new Client
{
ClientId = clientId,
AllowedScopes = new[] { "api", "get_user_info" },
ClientSecrets = new[] { new Secret(clientEntity.ClientSecret.Sha256()) },
AllowedGrantTypes = new[]
{
GrantType.AuthorizationCode, //授权码模式
GrantType.ClientCredentials, //客户端模式
GrantType.ResourceOwnerPassword, //密码模式
CustomGrantType.External, //自定义模式——三方(移动端)模式
CustomGrantType.Sms //自定义——短信模式
},
AllowOfflineAccess = false,
RedirectUris = string.IsNullOrWhiteSpace(clientEntity.RedirectUri) ? null : clientEntity.RedirectUri.Split(';'),
RequireConsent = false,
AccessTokenType = AccessTokenType.Jwt,
AccessTokenLifetime = 7200,
ClientClaimsPrefix = "",
Claims = new[] { new Claim(JwtClaimTypes.Role, "Client") }
};
}
}

通过代码可以看到,通过clientId从缓存中读取Client的相关信息构建并返回,这里我们为所有的Client简单的设置了统一的AllowedGrantTypes,这是一种偷懒的做法,应当按需授予GrantType,例如通常情况下我们只应默认给应用分配AuthorizationCode或者ClientCredentials,ResourceOwnerPassword需要谨慎授予(需要用户对Client高度信任)。

资源存储(Resource Store)

由于历史原因,在葫芦藤中,我们并没有通过IdentityServer对api资源进行访问保护(后续会提供我们的实现方式),我们为所有Client设置了相同的Scope。

持久化授权存储(Persisted Grant Store)

葫芦藤中,我们使用了Redis来持久化数据,

通过EntityFramework Core持久化配置和操作数据,请参考

https://www.cnblogs.com/stulzq/p/8120518.html

https://github.com/IdentityServer/IdentityServer4.EntityFramework

IPersistedGrantStore接口中定义了如下6个方法:

/// <summary>Interface for persisting any type of grant.</summary>
public interface IPersistedGrantStore
{
/// <summary>Stores the grant.</summary>
/// <param name="grant">The grant.</param>
/// <returns></returns>
Task StoreAsync(PersistedGrant grant); /// <summary>Gets the grant.</summary>
/// <param name="key">The key.</param>
/// <returns></returns>
Task<PersistedGrant> GetAsync(string key); /// <summary>Gets all grants for a given subject id.</summary>
/// <param name="subjectId">The subject identifier.</param>
/// <returns></returns>
Task<IEnumerable<PersistedGrant>> GetAllAsync(string subjectId); /// <summary>Removes the grant by key.</summary>
/// <param name="key">The key.</param>
/// <returns></returns>
Task RemoveAsync(string key); /// <summary>
/// Removes all grants for a given subject id and client id combination.
/// </summary>
/// <param name="subjectId">The subject identifier.</param>
/// <param name="clientId">The client identifier.</param>
/// <returns></returns>
Task RemoveAllAsync(string subjectId, string clientId); /// <summary>
/// Removes all grants of a give type for a given subject id and client id combination.
/// </summary>
/// <param name="subjectId">The subject identifier.</param>
/// <param name="clientId">The client identifier.</param>
/// <param name="type">The type.</param>
/// <returns></returns>
Task RemoveAllAsync(string subjectId, string clientId, string type);
}

PersistedGrant的结构如下:

/// <summary>A model for a persisted grant</summary>
public class PersistedGrant
{
/// <summary>Gets or sets the key.</summary>
/// <value>The key.</value>
public string Key { get; set; } /// <summary>Gets the type.</summary>
/// <value>The type.</value>
public string Type { get; set; } /// <summary>Gets the subject identifier.</summary>
/// <value>The subject identifier.</value>
public string SubjectId { get; set; } /// <summary>Gets the client identifier.</summary>
/// <value>The client identifier.</value>
public string ClientId { get; set; } /// <summary>Gets or sets the creation time.</summary>
/// <value>The creation time.</value>
public DateTime CreationTime { get; set; } /// <summary>Gets or sets the expiration.</summary>
/// <value>The expiration.</value>
public DateTime? Expiration { get; set; } /// <summary>Gets or sets the data.</summary>
/// <value>The data.</value>
public string Data { get; set; }
}

可以看出主要是针对PersistedGrant对象的操作,通过观察GetAsync和RemoveAsync方法的入参均为key,我们在StoreAsync中将PersistedGrant中的Key作为缓存key,将PersistedGrant对象以hash的方式存入缓存中,并设置过期时间(注意将UTC时间转换为本地时间)

public async Task StoreAsync(PersistedGrant grant)
{
//var expiresIn = grant.Expiration - DateTimeOffset.UtcNow;
var db = await _redisCache.GetDatabaseAsync(); var trans = db.CreateTransaction(); var expiry = grant.Expiration.Value.ToLocalTime(); db.HashSetAsync(grant.Key, GetHashEntries(grant)); //GetHashEntries是将对象PersistedGrant转换为HashEntry数组
db.KeyExpireAsync(grant.Key, expiry);
await trans.ExecuteAsync();
}

同时,把GetAsync和RemoveAsync的代码填上:

public async Task<PersistedGrant> GetAsync(string key)
{
var db = await _redisCache.GetDatabaseAsync();
var items = await db.HashGetAllAsync(key);
return GetPersistedGrant(items); //将HashEntry数组转换为PersistedGrant对象
} public async Task RemoveAsync(string key)
{
var db = await _redisCache.GetDatabaseAsync();
await db.KeyDeleteAsync(key);
}

接着,GetAllAsync方法,通过subjectId查询PersistedGrant集合,1对n,因此,我们在StoreAsync中补上这一层关系,以subjectId为缓存key,grant.Key为缓存值存入list集合中;GetAllAsync方法中,通过subjectId取出grant.Key的集合,最终得到PersistedGrant集合。

public async Task StoreAsync(PersistedGrant grant)
{
//var expiresIn = grant.Expiration - DateTimeOffset.UtcNow;
var db = await _redisCache.GetDatabaseAsync(); var trans = db.CreateTransaction(); var expiry = grant.Expiration.Value.ToLocalTime(); db.HashSetAsync(grant.Key, GetHashEntries(grant)); //GetHashEntries是将对象PersistedGrant转换为HashEntry数组
db.KeyExpireAsync(grant.Key, expiry); db.ListLeftPushAsync(grant.SubjectId, grant.Key);
db.KeyExpireAsync(grant.SubjectId, expiry); await trans.ExecuteAsync();
} public async Task<IEnumerable<PersistedGrant>> GetAllAsync(string subjectId)
{
if (string.IsNullOrWhiteSpace(subjectId))
return new List<PersistedGrant>(); var db = await _redisCache.GetDatabaseAsync(); var keys = await db.ListRangeAsync(subjectId); var list = new List<PersistedGrant>();
foreach (string key in keys)
{
var items = await db.HashGetAllAsync(key);
list.Add(GetPersistedGrant(items));
} return list;
}

类似的,StoreAsync方法中我们只需StoreAsync方法中根据RemoveAllAsync方法参数组装缓存key,grant.Key为缓存值写入缓存,对应的RemoveAllAsync中根据参数组装的key查询出grant.Key集合,删除缓存即可。

public async Task StoreAsync(PersistedGrant grant)
{
var db = await _redisCache.GetDatabaseAsync(); var trans = db.CreateTransaction(); var expiry = grant.Expiration.Value.ToLocalTime(); db.HashSetAsync(grant.Key, GetHashEntries(grant));
db.KeyExpireAsync(grant.Key, expiry); if (!string.IsNullOrEmpty(grant.SubjectId))
{
db.ListLeftPushAsync(grant.SubjectId, grant.Key);
db.KeyExpireAsync(grant.SubjectId, expiry); var key1 = $"{grant.SubjectId}:{grant.ClientId}";
db.ListLeftPushAsync(key1, grant.Key);
db.KeyExpireAsync(key1, expiry); var key2 = $"{grant.SubjectId}:{grant.ClientId}:{grant.Type}";
db.ListLeftPushAsync(key2, grant.Key);
db.KeyExpireAsync(key2, expiry);
} await trans.ExecuteAsync();
} public async Task RemoveAllAsync(string subjectId, string clientId)
{
if (string.IsNullOrEmpty(subjectId) || string.IsNullOrEmpty(clientId))
return;
var db = await _redisCache.GetDatabaseAsync(); var key = $"{subjectId}:{clientId}";
var keys = await db.ListRangeAsync(key);
if (!keys.Any()) return; var trans = db.CreateTransaction();
db.KeyDeleteAsync(keys.ToRedisKeys());
db.KeyDeleteAsync(key);
await trans.ExecuteAsync();
} public async Task RemoveAllAsync(string subjectId, string clientId, string type)
{
if (string.IsNullOrEmpty(subjectId) || string.IsNullOrEmpty(clientId) || string.IsNullOrEmpty(type))
return;
var db = await _redisCache.GetDatabaseAsync(); var key = $"{subjectId}:{clientId}:{type}";
var keys = await db.ListRangeAsync(key);
if (!keys.Any()) return; var trans = db.CreateTransaction();
db.KeyDeleteAsync(keys.ToRedisKeys());
db.KeyDeleteAsync(key);
await trans.ExecuteAsync();
}

至此,持久化的代码填写完毕;启动并调试项目,可以看到PersistedGrant对象如下:

资源拥有者验证器(Resource Owner Validator)

如果要使用OAuth 2.0 密码模式(Resource Owner Password Credentials Grant),则需要实现并注册IResourceOwnerPasswordValidator接口:

public async Task ValidateAsync(ResourceOwnerPasswordValidationContext context)
{
var result = await _userService.LoginByPasswordAsync(context.UserName, context.Password);
if (result.Code == 0)
{
var claims = await _userService.SaveSuccessLoginInfo(context.Request.ClientId.ToInt32(), result.Data.Id,
_contextAccessor.HttpContext.GetIp(), UserLoginModel.Password);
context.Result = new GrantValidationResult(result.Data.Id, OidcConstants.AuthenticationMethods.Password, claims);
}
else
{
context.Result = new GrantValidationResult(TokenRequestErrors.InvalidRequest, result.Message);
}
}

重定向地址验证器(Redirect Uri Validator)

用于验证重定向(授权码模式)和注销后重定向Uri的校验,葫芦藤项目中重定向地址验证只验证域名(不验证完整的requestedUri地址),且未进行注销重定向Uri的校验。

public class RedirectUriValidator : IRedirectUriValidator
{
public Task<bool> IsRedirectUriValidAsync(string requestedUri, Client client)
{
if (client.RedirectUris == null || !client.RedirectUris.Any())
{
return Task.FromResult(false);
}
var uri = new Uri(requestedUri);
return Task.FromResult(client.RedirectUris.Any(x => x.Contains(uri.Host)));
} public Task<bool> IsPostLogoutRedirectUriValidAsync(string requestedUri, Client client)
{
return Task.FromResult(true);
}
}

扩展授权验证器(Extension Grant Validator)

在IdentityServer4中,通过实现IExtensionGrantValidator接口,可以实现自定义授权。在葫芦藤项目中,我们有两个场景需要用到自定义授权:

  • 通过第三方(QQ、微信)的用户标识(OpenId)进行登录(颁发用户令牌)
  • 通过短信验证码进行登录(颁发用户令牌)

在IdentityServer4中实现短信验证码授权模式,我们创建了一个SmsGrantValidator类,继承自IExtensionGrantValidator接口,然后给属性GrantType取一个名字,此处名称为“sms”,实现ValidateAsync方法,方法内进行入参校验,然后验证短信验证码,验证通过后取出用户信息,下面代码中,当用户不存在时也可以自动注册。代码如下:

public class SmsGrantValidator : IExtensionGrantValidator
{
private readonly IHttpContextAccessor _contextAccessor;
private readonly IValidationComponent _validationComponent;
private readonly IUserService _userService; public SmsGrantValidator(IHttpContextAccessor contextAccessor, IValidationComponent validationComponent, IUserService userService)
{
_contextAccessor = contextAccessor;
_validationComponent = validationComponent;
_userService = userService;
GrantType = CustomGrantType.Sms;
} public async Task ValidateAsync(ExtensionGrantValidationContext context)
{
var phone = context.Request.Raw.Get("phone");
var code = context.Request.Raw.Get("code");
if (string.IsNullOrEmpty(phone) || Regex.IsMatch(phone, RegExp.PhoneNumber) == false)
{
context.Result = new GrantValidationResult(TokenRequestErrors.InvalidRequest, "phone is not valid");
return;
}
if (string.IsNullOrEmpty(code))
{
context.Result = new GrantValidationResult(TokenRequestErrors.InvalidRequest, "code is not valid");
return;
} try
{
var validSms = await _validationComponent.ValidSmsAsync(phone, code);
if (!validSms.Data)
{
context.Result = new GrantValidationResult(TokenRequestErrors.InvalidRequest, validSms.Message);
return;
} var userEntity = await _userService.GetUserByPhoneAsync(phone);
if (userEntity == null)
{
context.Result = new GrantValidationResult(TokenRequestErrors.InvalidRequest, "用户不存在或未注册");
return;
}
if (userEntity.Enabled == false)
{
context.Result = new GrantValidationResult(TokenRequestErrors.InvalidRequest, "您的账号已被禁止登录");
return;
} await _userService.SaveSuccessLoginInfo(context.Request.ClientId.ToInt32(), userEntity.Id, _contextAccessor.HttpContext.GetIp(),
UserLoginModel.SmsCode);
}
catch (Exception ex)
{
context.Result = new GrantValidationResult(TokenRequestErrors.InvalidRequest, ex.Message);
}
} public string GrantType { get; }
}

OAuth2.0的实践运用场景

基于角色的授权(role-based authorization)

基于角色的授权检查是声明性的,开发人员将其嵌入到代码中、控制器或控制器内的操作,指定当前用户必须是其成员的角色才能访问请求的资源,文档参考《ASP.NET Core 中的基于角色的授权》。

葫芦藤中定义了两种角色Claim(声明),客户端和用户,使用客户端授权模式(client credentials)颁发的令牌,ClaimRole为Client,使用授权码模式(authorization code)、密码模式(resource owner password credentials)、自定义授权模式(短信、第三方)颁发的用户令牌,ClaimRole为User

public static class ClaimRoles
{
/// <summary>
/// 客户端
/// </summary>
public const string Client = "Client";
/// <summary>
/// 用户
/// </summary>
public const string User = "User";
}

在ClientStore中增加返回Client的Claims,JwtClaimTypes.Role为ClaimRoles.Client,下面是客户端令牌,可以看到 "role":"Client"

{"alg":"RS256","kid":"99AA0C1236097972F29789562761D38AAE301918","typ":"JWT","x5t":"maoMEjYJeXLyl4lWJ2HTiq4wGRg"}
{"nbf":1608522625,"exp":1608529825,"iss":"http://localhost:80","aud":"api","client_id":"10000001","role":"Client","scope":["api","get_user_info"]}

在用户登录成功后返回的Claims中增加JwtClaimTypes.Role为ClaimRoles.User,下面是用户令牌,可以看到 "role":"User"

{"alg":"RS256","kid":"99AA0C1236097972F29789562761D38AAE301918","typ":"JWT","x5t":"maoMEjYJeXLyl4lWJ2HTiq4wGRg"}
{"nbf":1608522576,"exp":1608529776,"iss":"http://localhost:80","aud":"api","client_id":"10000001","sub":"df09efff-0074-4dca-91c3-e38180c5e4ac","auth_time":1608522576,"idp":"local","id":"df09efff-0074-4dca-91c3-e38180c5e4ac","open_id":"07E8E30B56D256EF8C440019AB6AAA89","name":"1051dfd1-73e5-4e6f-9326-3423bc9b71a3","nickname":"laowang","phone_number":"18627131390","email":"","role":"User","login_ip":"0.0.0.1","login_address":"保留地址","last_login_ip":"0.0.0.1","last_login_address":"保留地址","scope":["api","get_user_info"],"amr":["pwd","mfa"]}

在项目Fulu.Passport.API的Startup文件中,添加对组件Fulu.Service.Authorize的服务注入

services.AddServiceAuthorize(o =>...代码省略...);
services.AddAuthentication(x =>...代码省略...).AddJwtBearer(o =>
{
...代码省略...
o.TokenValidationParameters = new TokenValidationParameters
{
NameClaimType = JwtClaimTypes.Name,
RoleClaimType = ClaimTypes.Role, //注意,这里不能使用JwtClaimTypes.Role
...代码省略...
}
}

接着,只需在Controller或Action上指定属性即可

[Route("api/[controller]/[action]")]
[ApiController]
[Authorize(Roles = ClaimRoles.Client)]
public class ClientController : ControllerBase
{
...省略部分代码...
/// <summary>
/// 获取应用列表
/// </summary>
/// <returns></returns>
[HttpGet]
[ProducesResponseType(typeof(ActionObjectResult<List<ClientEntity>, Statistic>), 200)]
public async Task<IActionResult> GetClients()
{
var clients = await _clientRepository.TableNoTracking.Where(c => c.Enabled).ToListAsync();
return ObjectResponse.Ok(clients);
}
...省略部分代码...

客户端授权模式(client credentials)

通过客户端授权模式颁发的令牌,可以实现对服务资源进行保护。步骤如下:

(A)客户端10000001向葫后进行身份认证,并要求一个访问令牌。

(B)葫后验证客户端身份后,向客户端10000001提供访问令牌。

A步骤中,客户端10000001发出的HTTP请求,包含以下参数:

  • grant_type:表示授权类型,此处的值固定为"clientcredentials",必选项。
  • client_id:表示客户端的ID,必选项。
  • client_secret:表示客户端密钥,必选项。
POST https://account-web.suuyuu.cn/oauth/token HTTP/1.1
Host: www.xxx.com
Content-Type: application/x-www-form-urlencoded grant_type=client_credentials&client_id=10000001&client_secret=14p9ao1gxu4q3sp8ogk8bq4gkct59t9w

B步骤中,葫芦藤向客户端10000001发放令牌,下面是一个例子。

HTTP/1.1 200 OK
Content-Type: application/json;charset=UTF-8
Cache-Control: no-store, no-cache, max-age=0
Pragma: no-cache {
"access_token": "eyJhbGciOiJSUzI1NiIsImtpZCI6Ijk5QUEwQzEyMzYwOTc5NzJGMjk3ODk1NjI3NjFEMzhBQUUzMDE5MTgiLCJ0eXAiOiJKV1QiLCJ4NXQiOiJtYW9NRWpZSmVYTHlsNGxXSjJIVGlxNHdHUmcifQ.eyJuYmYiOjE2MDc0MTQ2MjUsImV4cCI6MTYwNzQyMTgyNSwiaXNzIjoiaHR0cDovL2xvY2FsaG9zdDo4MCIsImF1ZCI6ImFwaSIsImNsaWVudF9pZCI6IjEwMDAwMDAxIiwicm9sZSI6IkNsaWVudCIsImh0dHA6Ly9zY2hlbWFzLm1pY3Jvc29mdC5jb20vd3MvMjAwOC8wNi9pZGVudGl0eS9jbGFpbXMvcm9sZSI6IkNsaWVudCIsInNjb3BlIjpbImFwaSIsImdldF91c2VyX2luZm8iXX0.ilu1qMxDiXVxsqU6aO-xuyYaLvvj2mxONjYkXtpMs46K7O3_Qc5VsY0ZZaYPoLROAqPulxsWWpxjEiQd10OdRh4IziGAcpYfAfoD80CZxrcuWrWloB5aWncv_PMZcjzKw7Vt3G3g-WkJl4amTta498hZJ3B-N-ReLhl-3ICSMFU8PU_ZVtEB-2lRx93rVyPIaQu_DWmpyW4Bdf2ocYm4RPQAEsvBToEFObbWPG6paLWIjrSN2aQPvsRWziorvlIhyFV5L6oyFIGIrZxdLJTOsvRQaevpV1sbv9pD_Z9PZDbSQiQDbWQv0MfrYB0Npc6VQlIMkL2GPNlQ8NgwyGT1sQ",
"expires_in": 7200,
"token_type": "Bearer",
"scope": "api get_user_info"
}

授权码模式(authorization code)

葫芦藤项目通过授权码模式(authorization code)实现了单点登录,通过授权码模式拿到用户令牌。目前葫芦藤只有一个应用(葫芦藤安全中心),这里为了不把概念搞混淆,我们假定百度(客户端10000002,redirect_uri 为 http://www.baidu.com)接入了咱们的授权体系,当然,百度的前端肯定没有写如何构造请求步骤的逻辑代码,因此,我们下面通过人工模拟请求步骤。

名词定义

(A)用户访问“百前”,“百前”将用户导向“葫后”。
(B)“葫后”检查用户是否需要登录(是否携带了有效的登录Cookie),如需登录跳转到“葫前”。
(C)用户登录后,“葫后”将用户导向百度事先指定的"重定向URI"(redirection URI),同时附上一个授权码。
(D)“百前”收到授权码,附上早先的"重定向URI",向“百后”申请令牌,“百后”拿到授权码之后携带密钥client_secret向“葫后”申请令牌。
(E)“葫后”核对了授权码和重定向URI,确认无误后,向“百后”颁发访问令牌(access token)。
(F)“百后”将令牌返回给“百前”。

A步骤中,构造的请求地址包含以下参数:

  • response_type:表示授权类型,必选项,此处的值固定为"code"
  • client_id:表示客户端的ID,必选项
  • redirect_uri:表示重定向URI,可选项
  • scope:表示申请的权限范围,可选项
  • state:表示客户端的当前状态,可以指定任意值,认证服务器会原封不动地返回这个值

步骤A中开发人员需向前端人员提供client_id,即上面的client_id,下面是一个例子。

构造如下地址,复制到浏览器地址栏中并回车,如果跳转到登录页,请进行登录。

https://account-web.suuyuu.cn/connect/authorize?client_id=10000002&redirect_uri=https%3A%2F%2Fwww.baidu.com&response_type=code&scope=api&state=STATE

登录后会重定向redirect_uri到如下地址:

https://www.baidu.com/?code=1MlxrvXuD7TfH-s4dLzcw9ymO0SKDbf5xAlh3ZEHlMo&scope=api&state=STATE

D步骤中,我们通过临时授权码向“葫后”索取令牌,包含以下参数:

  • grant_type:表示使用的授权模式,必选项,此处的值固定为"authorization_code"。
  • code:表示上一步获得的授权码,必选项。
  • redirect_uri:表示重定向URI,必选项,且必须与A步骤中的该参数值保持一致。
  • client_id:表示应用ID,必选项。
  • client_secret:表示应用密钥,必选项。
POST https://account-web.suuyuu.cn/oauth/token HTTP/1.1
Host: account-web.suuyuu.cn
Content-Type: application/x-www-form-urlencoded grant_type=authorization_code&code=1MlxrvXuD7TfH-s4dLzcw9ymO0SKDbf5xAlh3ZEHlMo&redirect_uri=https%3A%2F%2Fwww.baidu.com&client_id=10000002&client_secret=14p9ao1gxu4q3sp8ogk8bq4gkct59t9w
{
"access_token":"eyJhbGciOiJSUzI1NiIsImtpZCI6IjcwQzQ3OUY1QUIyQTFERjM2QzE0MkNEQjQ3NjQ1QkEwMzQ1MTg1NUEiLCJ0eXAiOiJKV1QiLCJ4NXQiOiJjTVI1OWFzcUhmTnNGQ3piUjJSYm9EUlJoVm8ifQ.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.ElnHr5Niknq7kzGL8iv1TH0F6NQ21yPrswzSTIZuvetUxztYgQpD-RfgBW2HL6b_rRyQxFjE23gU4lBIEayM8k3M9_sUzZq8E_dFT8LwpsU76-CxepxHft4hn1YG0a5C6QRyjFQoSFVUZXIp663Es7vwRQ6PgsfkHZKXxAqXL-obHj_QLbv6OeciTIRGwYrL9-1_SDQ4esFR2n8LkGGOug55j9QuQEKMCufQLJ-nB3y7A2-0mnNoiuF2BBYSPLamcvMcLe8LbhCITLrHkcUSc6tsSdnEeisS6BMIoiyRq-LR2jJwDD30swTPFd85v6kUBJ3ZnWjeCqsluGGKHrwDLA",
"expires_in":7200,
"token_type":"Bearer",
"scope":"api"
}

密码模式(resource owner password credentials)

密码模式主要用于给可信应用颁发用户令牌,此类应用有个性化的登录页(不依赖单点登录,葫芦藤的登录页面),如app、小程序、h5等。

  • grant_type:表示授权类型,此处的值固定为"password",必选项。
  • client_id:表示客户端的ID,必选项。
  • client_secret:表示客户端密钥,必选项。
  • username:用户名,必选项。
  • password:密码,必选项。(基于密码原文的rsa加密串)
POST https://account-web.suuyuu.cn/oauth/token HTTP/1.1
Host: account-web.suuyuu.cn
Content-Type: application/x-www-form-urlencoded grant_type=password&client_id=10000001&client_secret=14p9ao1gxu4q3sp8ogk8bq4gkct59t9w&username=18627131390&password=0200f6389afbcbc624811785c9fbbf5c1b6d7b53b1315a1a43021c0733323fab7625bb9e6594cd30758fa700798421bc189dc223bf696d2438530ffab337809b96bb47ee38f3416bf4b57222050d5f4ad66ee052598ea62ff5ec6f991729956cb692f6f48b758564a46aeff86208581cad9063d3ccd71b551fa4b4b4b983fc1a
{
"access_token": "eyJhbGciOiJSUzI1NiIsImtpZCI6IjcwQzQ3OUY1QUIyQTFERjM2QzE0MkNEQjQ3NjQ1QkEwMzQ1MTg1NUEiLCJ0eXAiOiJKV1QiLCJ4NXQiOiJjTVI1OWFzcUhmTnNGQ3piUjJSYm9EUlJoVm8ifQ.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.d3qvhX6KSdm5EgWpUzbjJX2bB1OiUo-285nZ1qsGKpqTQJUH1VHQoJogB0NI-uVYdgIV-y3CMBhFY_fDYQJto43zDf0gDvYxa2eWnX5MWL7Augigi59Icp0YvNDCGd2iT5ztAWpxk1Jww815TtCFtFFGiQfQC75bKLrTW9QvdXr8t4VHcFKGmz92m8g3WL-0eWqAyvk0YuSBvxOd8P8zoocEiiOgVKTSylphSIQxuC8B4MFNf2DoFWDQjNZmDCs7PLh7sniMmLdfilo7T7gAlq9qjUrmQmav4wbDMT8WZqa01WY-LsWq6mZUnbCytgSu7Xrr90b6LAEGn-hxdQ5VHg",
"expires_in": 7200,
"token_type": "Bearer",
"scope": "api get_user_info"
}

自定义授权模式(短信、第三方)(extension grant)

客户端通过用户手机号短信验证码或第三方用户(QQ、WeChat)的用户唯一标识(OpenId)向认证服务器索要用户令牌。

以短信验证码方式为例,我们定义的流程如下:

用户向客户端提供自己的手机号和短信验证码。客户端使用这些信息,向认证服务器索要授权。 步骤如下:

(A)用户向客户端提供手机号和短信验证码。
(B)客户端将手机号和短信码发给认证服务器,向后者请求令牌。
(C)认证服务器确认无误后,向客户端提供用户令牌。

B步骤中,客户端发出的HTTP请求,包含以下参数:

  • grant_type:表示授权类型,此处的值固定为"sms",必选项。
  • client_id:表示客户端的ID,必选项。
  • client_secret:表示客户端的密钥,必选项。
  • phone:表示手机号,必选项。
  • code:表示短信验证码,必选项。

下面是一个请求示例。

POST https://account-web.suuyuu.cn/oauth/token HTTP/1.1
Host: account-web.suuyuu.cn
Content-Type: application/x-www-form-urlencoded grant_type=sms&phone=18627131390&code=123456&client_id=10000001&client_secret=14p9ao1gxu4q3sp8ogk8bq4gkct59t9w
{
"access_token": "eyJhbGciOiJSUzI1NiIsImtpZCI6Ijk5QUEwQzEyMzYwOTc5NzJGMjk3ODk1NjI3NjFEMzhBQUUzMDE5MTgiLCJ0eXAiOiJKV1QiLCJ4NXQiOiJtYW9NRWpZSmVYTHlsNGxXSjJIVGlxNHdHUmcifQ.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_neeVmeWcsOWdgCIsInNjb3BlIjpbImFwaSIsImdldF91c2VyX2luZm8iXSwiYW1yIjpbInBhc3N3b3JkIiwibWZhIl19.ZQklMJMXObc3vL-gMOWnWIS56ck5_XbDfXjw9Vm6BeYjG4dyz05JTN_YHgU-EIJoM04nmFyjNgGYtqL-28-3MQeHfWhvQf_5dyY1w-DBBCKo1EMEm_ujKTDB1QQTN1XmVTgW7bBkEiv4NK5v3uYqh_s7pv8Csusm4oWZThWPlKLtxWVDtawFzvz4Un-2WATytsLNfluutiLVnpN7INhkdglansTTOCUOdCOLBEEbDzTuLyCnhm00xYtg5GrMAkDohqXLKYD2jSFzIyYTA_oryTFXcJpkGYwIRqRX7bXvAlMR5yE_CTtNWpSnaLJ2GtFv_QFe-YItCtSO-bBd6XQBRA",
"expires_in": 7200,
"token_type": "Bearer",
"scope": "api get_user_info"
}

第三方授权登录的编写与使用

在葫芦藤项目中我们提供了钉钉、微信的OAuth组件,并实现了功能,演示地址在 https://account.suuyuu.cn,下面我们以微信为例简单介绍下如何编写组件及使用。

首先咱们阅读一下网站应用微信登录开发指南,了解一下接入流程。要使用微信登录,先得在微信·开放平台注册成为开发者,并进行资质认证。

微信开放平台帐号的开发者资质认证提供更安全、更严格的真实性认证、也能够更好的保护企业及用户的合法权益
开发者资质认证通过后,微信开放平台帐号下的应用,将获得微信登录、智能接口、第三方平台开发等高级能力
审核费用:中国大陆地区:300元,非中国大陆地区:99美元

然后在管理中心创建网站应用

对照微信开发指南将需要用到的地址定义到WeChatDefaults.cs中

public static class WeChatDefaults
{
public const string AuthenticationScheme = "wechat"; public static readonly string DisplayName = "wechat";
//第一步:请求CODE
public static readonly string AuthorizationEndpoint = "https://open.weixin.qq.com/connect/qrconnect";
//第二步:通过code获取access_token
public static readonly string TokenEndpoint = "https://api.weixin.qq.com/sns/oauth2/access_token";
//第三步:获取用户个人信息
public static readonly string UserInformationEndpoint = "https://api.weixin.qq.com/sns/userinfo";
}

此处唯一要注意的地方,ClaimActions集合的参数来自微信返回的字段

public class WeChatOptions : OAuthOptions
{
/// <summary>
/// Initializes a new <see cref="WeChatOptions"/>.
/// </summary>
public WeChatOptions()
{
CallbackPath = new PathString("/signin-wechat");
AuthorizationEndpoint = WeChatDefaults.AuthorizationEndpoint;
TokenEndpoint = WeChatDefaults.TokenEndpoint;
UserInformationEndpoint = WeChatDefaults.UserInformationEndpoint;
Scope.Add("snsapi_login"); ClaimActions.MapJsonKey(ClaimTypes.NameIdentifier, "openid");
ClaimActions.MapJsonKey(ClaimTypes.Name, "nickname");
} /// <summary>
/// access_type. Set to 'offline' to request a refresh token.
/// </summary>
public string AccessType { get; set; }
}
public static class WeChatExtensions
{
public static AuthenticationBuilder AddWeChat(this AuthenticationBuilder builder)
=> builder.AddWeChat(WeChatDefaults.AuthenticationScheme, _ => { }); public static AuthenticationBuilder AddWeChat(this AuthenticationBuilder builder, Action<WeChatOptions> configureOptions)
=> builder.AddWeChat(WeChatDefaults.AuthenticationScheme, configureOptions); public static AuthenticationBuilder AddWeChat(this AuthenticationBuilder builder, string authenticationScheme, Action<WeChatOptions> configureOptions)
=> builder.AddWeChat(authenticationScheme, WeChatDefaults.DisplayName, configureOptions); public static AuthenticationBuilder AddWeChat(this AuthenticationBuilder builder, string authenticationScheme, string displayName, Action<WeChatOptions> configureOptions)
=> builder.AddOAuth<WeChatOptions, WeChatHandler>(authenticationScheme, displayName, configureOptions);
}

新增一个类WeChatHandler,继承自OAuthHandler

BuildChallengeUrl(构造客户端申请认证的URI)

protected override string BuildChallengeUrl(AuthenticationProperties properties, string redirectUri)
{
var state = Options.StateDataFormat.Protect(properties);
var baseUri = $"{Request.Scheme}{Uri.SchemeDelimiter}{Request.Host}{Request.PathBase}";
var currentUri = $"{baseUri}{Request.Path}{Request.QueryString}"; if (string.IsNullOrEmpty(properties.RedirectUri))
{
properties.RedirectUri = currentUri;
} var queryStrings = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
{
{"response_type", "code"},
{"appid", Uri.EscapeDataString(Options.ClientId)},
{"redirect_uri", redirectUri},
{"state", Uri.EscapeDataString(state)}
}; var scope = string.Join(",", Options.Scope);
queryStrings.Add("scope", Uri.EscapeDataString(scope)); var authorizationEndpoint = QueryHelpers.AddQueryString(Options.AuthorizationEndpoint, queryStrings);
return authorizationEndpoint;
}

HandleRemoteAuthenticateAsync(向认证服务器申请令牌获取用户信息并创建票据)

protected override async Task<HandleRequestResult> HandleRemoteAuthenticateAsync()
{ var state = Request.Query["state"];
var properties = Options.StateDataFormat.Unprotect(state); if (properties == null)
return HandleRequestResult.Fail("The oauth state was missing or invalid.");
if (!ValidateCorrelationId(properties))
return HandleRequestResult.Fail("Correlation failed.", properties); var code = Request.Query["code"];
if (StringValues.IsNullOrEmpty(code))
return HandleRequestResult.Fail("Code was not found.", properties); var redirectUri = !string.IsNullOrEmpty(Options.CallbackPath) ?
Options.CallbackPath.Value : BuildRedirectUri(Options.CallbackPath); var context = new OAuthCodeExchangeContext(properties, code, redirectUri); var tokens = await ExchangeCodeAsync(context); if (tokens.Error != null)
return HandleRequestResult.Fail(tokens.Error, properties);
if (string.IsNullOrEmpty(tokens.AccessToken))
return HandleRequestResult.Fail("Failed to retrieve access token.", properties);
var identity = new ClaimsIdentity(ClaimsIssuer); if (Options.SaveTokens)
{
var authenticationTokenList = new List<AuthenticationToken>
{
new AuthenticationToken
{
Name = "access_token",
Value = tokens.AccessToken
}
};
if (!string.IsNullOrEmpty(tokens.RefreshToken))
{
authenticationTokenList.Add(new AuthenticationToken
{
Name = "refresh_token",
Value = tokens.RefreshToken
});
} if (!string.IsNullOrEmpty(tokens.TokenType))
{
authenticationTokenList.Add(new AuthenticationToken
{
Name = "token_type",
Value = tokens.TokenType
});
} if (!string.IsNullOrEmpty(tokens.ExpiresIn) && int.TryParse(tokens.ExpiresIn, NumberStyles.Integer, CultureInfo.InvariantCulture, out var result))
{
var dateTimeOffset = Clock.UtcNow + TimeSpan.FromSeconds(result);
authenticationTokenList.Add(new AuthenticationToken()
{
Name = "expires_at",
Value = dateTimeOffset.ToString("o", CultureInfo.InvariantCulture)
});
}
properties.StoreTokens(authenticationTokenList);
} var ticket = await CreateTicketAsync(identity, properties, tokens);
return ticket == null ? HandleRequestResult.Fail("Failed to retrieve user information from remote server.", properties) : HandleRequestResult.Success(ticket);
}

此步骤中包含两个子步骤

ExchangeCodeAsync(交换授权码Code)

protected override async Task<OAuthTokenResponse> ExchangeCodeAsync(OAuthCodeExchangeContext context)
{ var tokenRequestParameters = new List<KeyValuePair<string, string>>
{
new KeyValuePair<string, string>("appid", Options.ClientId),
new KeyValuePair<string, string>("secret", Options.ClientSecret),
new KeyValuePair<string, string>("code", context.Code),
new KeyValuePair<string, string>("grant_type", "authorization_code"),
}; var urlEncodedContent = new FormUrlEncodedContent(tokenRequestParameters); var response =
await Backchannel.PostAsync(Options.TokenEndpoint, urlEncodedContent, Context.RequestAborted); return response.IsSuccessStatusCode ? OAuthTokenResponse.Success(JsonDocument.Parse(await response.Content.ReadAsStringAsync())) : OAuthTokenResponse.Failed(new Exception("OAuth token failure"));
}

CreateTicketAsync(创建票据)

protected override async Task<AuthenticationTicket> CreateTicketAsync(ClaimsIdentity identity,AuthenticationProperties properties,OAuthTokenResponse tokens)
{
var openId = tokens.Response.RootElement.GetString("openid"); var parameters = new Dictionary<string, string>
{
{ "openid", openId},
{ "access_token", tokens.AccessToken }
};
var userInfoEndpoint = QueryHelpers.AddQueryString(Options.UserInformationEndpoint, parameters);
var response = await Backchannel.GetAsync(userInfoEndpoint, Context.RequestAborted); if (!response.IsSuccessStatusCode)
{
throw new HttpRequestException($"An error occurred when retrieving WeChat user information ({response.StatusCode}). Please check if the authentication information is correct.");
} using (var payload = JsonDocument.Parse(await response.Content.ReadAsStringAsync()))
{
var context = new OAuthCreatingTicketContext(new ClaimsPrincipal(identity), properties, Context, Scheme,
Options, Backchannel, tokens, payload.RootElement); context.RunClaimActions();
await Events.CreatingTicket(context); context.Properties.ExpiresUtc = DateTimeOffset.Now.AddMinutes(15);
return new AuthenticationTicket(context.Principal, context.Properties, Scheme.Name);
}
}

组件写好了,怎么使用呢?在Fulu.Passport.Web项目的Startup.cs文件中添加代码如下:

public void ConfigureServices(IServiceCollection services)
{
......省略部分代码...... services.AddAuthentication().AddWeChat(o =>
{
o.SignInScheme = IdentityServerConstants.ExternalCookieAuthenticationScheme;
o.ClientId = Configuration["ExternalWeChat:AppId"];
o.ClientSecret = Configuration["ExternalWeChat:Secret"];
})
}

接着,在UserController.cs中添加如下代码:

/// <summary>
/// 外部账号登录
/// </summary>
/// <param name="model"></param>
/// <returns></returns>
[HttpGet, AllowAnonymous]
public IActionResult ExternalLogin([FromQuery] ExternalLoginModel model)
{
var authenticationProperties = new AuthenticationProperties()
{
RedirectUri = Url.Action(nameof(ExternalLoginCallback)),
Items =
{
{ "returnUrl", model.ReturnUrl },
{ "scheme", model.Provider },
}
}; return Challenge(authenticationProperties, model.Provider);
} /// <summary>
/// 外部登录回调
/// </summary>
/// <returns></returns>
[HttpGet]
[AllowAnonymous]
public async Task<IActionResult> ExternalLoginCallback()
{
//获取idsrv.external Cookie 对象
var result = await HttpContext.AuthenticateAsync(IdentityServerConstants.ExternalCookieAuthenticationScheme); var returnUrl = result.Properties.Items["returnUrl"]; if (result.Succeeded == false)
{
return await RedirectErrorResult("error", "External authentication error", returnUrl);
}
......省略部分代码...... //删除 idsrv.external Cookie
await HttpContext.SignOutAsync(IdentityServerConstants.ExternalCookieAuthenticationScheme);
//写入 .AspNetCore.Cookies
await SignIn(userEntity, UserLoginModel.External); return Redirect(returnUrl);
}

福禄ICH·架构组
福禄娃

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