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https://github.com/aaronpo97/the-biergarten-app.git
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98 lines
3.1 KiB
Plaintext
98 lines
3.1 KiB
Plaintext
@startuml resend-confirmation
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!include ../../../pipeline/diagrams/biergarten-weizen-theme.puml
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skinparam sequenceMessageAlign center
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skinparam maxMessageSize 200
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title User Authentication Flow - Resend Confirmation Email
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actor User
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participant "API\nController" as API
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participant "MediatR pipeline\n(ValidationBehavior)" as Mediator
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box "Handler Layer" #F1F3EA
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participant "ResendConfirmationEmailHandler" as ResendHandler
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participant "UserManager<ApplicationUser>" as UserMgr
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participant "TokenService" as TokenSvc
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end box
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box "Infrastructure Layer" #EBECE3
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participant "Email\nProvider" as SMTP
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participant "Template\nProvider" as Template
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end box
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box "Repository / Cross-slice" #DBEEDD
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participant "DapperUserStore\n(IUserStore/IUserPasswordStore/\nIUserEmailStore)" as UserStore
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participant "EmailDispatcher\n(Features.Emails)" as EmailDispatcher
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end box
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database "SQL Server" as DB
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note over UserMgr
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ASP.NET Core Identity's UserManager<TUser>
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replaces the deleted AuthRepository: handlers
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no longer issue SQL or call Argon2 directly,
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they delegate to UserManager, which in turn
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calls DapperUserStore (persistence) and
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Argon2PasswordHasher (IPasswordHasher<TUser>).
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end note
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User -> API: POST /api/auth/confirm/resend?userId=<id>\n(requires Bearer access token)
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activate API
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API -> Mediator: Send(ResendConfirmationEmailCommand(userId))
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activate Mediator
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Mediator -> ResendHandler: Handle(command)
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activate ResendHandler
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ResendHandler -> UserMgr: FindByIdAsync(userId)
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activate UserMgr
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UserMgr -> UserStore: FindByIdAsync(userId)
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activate UserStore
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UserStore -> DB: SELECT ...\nFROM dbo.UserAccount\nWHERE UserAccountID = @Id
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activate DB
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DB --> UserStore: row or null
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deactivate DB
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UserStore --> UserMgr: ApplicationUser or null
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deactivate UserStore
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UserMgr --> ResendHandler: ApplicationUser or null
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deactivate UserMgr
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alt User not found
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ResendHandler -> ResendHandler: return silently\n(prevents user enumeration)
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else User found
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ResendHandler -> UserMgr: IsEmailConfirmedAsync(user)
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UserMgr --> ResendHandler: bool
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alt Already confirmed
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ResendHandler -> ResendHandler: return silently (no-op)
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else Not yet confirmed
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ResendHandler -> TokenSvc: GenerateConfirmationToken(user)
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activate TokenSvc
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TokenSvc --> ResendHandler: confirmation token
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deactivate TokenSvc
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ResendHandler -> Mediator: Send(SendResendConfirmationEmailCommand)
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activate Mediator
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Mediator -> EmailDispatcher: SendResendConfirmationEmailAsync(\n firstName, email, confirmationToken)
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activate EmailDispatcher
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EmailDispatcher -> Template: Render email\n(same Razor pipeline as registration)
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EmailDispatcher -> SMTP: SendAsync(email, subject, body)
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deactivate EmailDispatcher
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deactivate Mediator
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end
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end
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ResendHandler --> Mediator: (void)
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deactivate ResendHandler
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Mediator --> API: (void)
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deactivate Mediator
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API -> User: 200 OK\n{message: "confirmation email has been resent"}
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note right of API
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Always 200 OK regardless of outcome above -
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same user-enumeration precaution as a not-found
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user or an already-confirmed account.
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end note
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deactivate API
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@enduml
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