` 手机短信验证码模式 微信授权模式
@startuml
'https://plantuml.com/sequence-diagram
skinparam backgroundColor #EEEBDC
skinparam handwritten true

header 有来 Spring Security OAuth2 微信授权模式

actor 客户端


客户端 -> AuthController: 微信授权登录模式 \n /oauth/token?gran_type=wechat
AuthController -> TokenEndpoint: postAccessToken()
TokenEndpoint -> CompositeTokenGranter: this.getTokenGranter().grant()
participant WechatTokenGranter #99FF99
CompositeTokenGranter->WechatTokenGranter: grant( grantType, tokenRequest )\n根据 grant_type 匹配 Granter
note over of AuthenticationManagerDelegator #aqua
WebSecurityConfigurerAdapter 内部类
end note
WechatTokenGranter-> AuthenticationManagerDelegator:this.authenticationManager.authenticate()
AuthenticationManagerDelegator -> ProviderManager: this.delegate.authenticate()
ProviderManager -> ProviderManager: 匹配支持\WechatAuthenticationToken\n的Provider

activate ProviderManager
participant WechatAuthenticationProvider #99FF99
ProviderManager -> WechatAuthenticationProvider: provider.authenticate(authentication)
deactivate ProviderManager

WechatAuthenticationProvider -> WechatAuthenticationProvider: authenticate()\ncode 获取 openid \n解析encryptedData\n获取用户信息
ProviderManager <-- WechatAuthenticationProvider: Authentication
AuthenticationManagerDelegator <-- ProviderManager: Authentication
WechatTokenGranter <-- AuthenticationManagerDelegator: OAuth2Authentication
CompositeTokenGranter <-- WechatTokenGranter: OAuth2Authentication
TokenEndpoint <-- CompositeTokenGranter:OAuth2AccessToken
AuthController <-- TokenEndpoint:OAuth2AccessToken
客户端 <-- AuthController: OAuth2AccessToken
@enduml