Public archive for the Return to Ritherdon project.
https://www.nicolaellisandritherdon.com
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90 lines
2.8 KiB
90 lines
2.8 KiB
(defpackage #:auth |
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(:use #:cl |
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#:hermetic |
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#:sxql |
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;; #:datafly |
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#:ningle |
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#:mito |
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#:app-constants |
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#:user) |
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(:import-from #:ritherdon-archive.db |
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#:connection-settings |
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#:db |
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#:with-connection) |
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(:export #:csrf-token |
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#:get-user-roles |
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#:get-current-user |
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#:get-user-id |
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#:flash-gethash |
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#:auth-user-data)) |
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(in-package #:auth) |
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(defun csrf-token () |
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"Cross-Site Request Forgery (CSRF) token." |
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(cdr (assoc "lack.session" |
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(lack.request:request-cookies ningle:*request*) |
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:test #'string=))) |
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(hermetic:setup |
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;; #' is needed. (hermetic:roles) generates infinite-loop when called |
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;; otherwise -- 'roles' called in other parts of code-base. |
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;; #' is shorthand for the 'function' operator (returns the function |
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;; object associated with the name of the function which is supplied |
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;; as an argument. Keep forgetting that. |
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:user-p #'(lambda (username) |
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(with-connection (db) |
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(mito:find-dao 'user::user :username username))) |
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:user-pass #'(lambda (username) |
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(user::password-of |
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(with-connection (db) |
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(mito:find-dao 'user::user :username username)))) |
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:user-roles #'(lambda (username) |
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(cons :logged-in |
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(let ((user (with-connection (db) |
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(mito:find-dao |
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'user::user :username username)))) |
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(and user |
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(= (user::is-administrator-p user) app-constants:+true+) |
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'(:administrator))))) |
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:session ningle:*session* |
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:denied (constantly '(400 (:content-type "text/plain") ("Authentication denied")))) |
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;; TODO: MOVE GET-USER OUT OF AUTH PACKAGE (NOT APPLICABLE HERE)) |
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(defun get-user (username) |
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"Returns a `USER' profile from the database." |
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(with-connection (db) |
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(mito:find-dao 'user :username username))) |
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(defun get-current-user() |
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"Returns the currently logged in user from the browser session." |
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(with-connection (db) |
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(mito:find-dao 'user :id (gethash :id ningle:*session*)))) |
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(defun auth-user-data () |
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"Get usual session data for logged in `USER'." |
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`(:token ,(auth:csrf-token) |
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:roles ,(auth:get-user-roles) |
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:user ,(auth:get-current-user))) |
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;; TODO: MOVE GET-USER-ID OUT OF AUTH PACKAGE (NOT APPLICABLE HERE)) |
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(defun get-user-id (username) |
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"Returns the Id. number of the specified `USERNAME' in the database." |
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(with-connection (db) |
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(mito:object-id |
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(mito:find-dao 'user :username username)))) |
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(defun get-user-roles() |
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"Returns a list of roles the current user has assigned to them. |
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This is mostly to check if the user is logged-in or has administration |
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privileges. You can then create if-blocks in the HTML templates and |
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control what the user can and cannot see or do." |
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(loop :for role :in (hermetic:roles) |
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:collect role |
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:collect t)) |
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(defun flash-gethash (key table) |
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"Clears out the session hash." |
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(let ((value (gethash key table))) |
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(remhash key table) |
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value))
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