penpot/backend/src/app/http/access_token.clj

85 lines
2.5 KiB
Clojure

;; This Source Code Form is subject to the terms of the Mozilla Public
;; License, v. 2.0. If a copy of the MPL was not distributed with this
;; file, You can obtain one at http://mozilla.org/MPL/2.0/.
;;
;; Copyright (c) KALEIDOS INC
(ns app.http.access-token
(:require
[app.common.logging :as l]
[app.config :as cf]
[app.db :as db]
[app.main :as-alias main]
[app.setup :as-alias setup]
[app.tokens :as tokens]
[yetti.request :as yreq]))
(def header-re #"^Token\s+(.*)")
(defn- get-token
[request]
(some->> (yreq/get-header request "authorization")
(re-matches header-re)
(second)))
(defn- decode-token
[props token]
(when token
(tokens/verify props {:token token :iss "access-token"})))
(def sql:get-token-data
"SELECT perms, profile_id, expires_at
FROM access_token
WHERE id = ?
AND (expires_at IS NULL
OR (expires_at > now()));")
(defn- get-token-data
[pool token-id]
(when-not (db/read-only? pool)
(some-> (db/exec-one! pool [sql:get-token-data token-id])
(update :perms db/decode-pgarray #{}))))
(defn- wrap-soft-auth
"Soft Authentication, will be executed synchronously on the undertow
worker thread."
[handler {:keys [::setup/props]}]
(letfn [(handle-request [request]
(try
(let [token (get-token request)
claims (decode-token props token)]
(cond-> request
(map? claims)
(assoc ::id (:tid claims))))
(catch Throwable cause
(l/trace :hint "exception on decoding malformed token" :cause cause)
request)))]
(fn [request]
(handler (handle-request request)))))
(defn- wrap-authz
"Authorization middleware, will be executed synchronously on vthread."
[handler {:keys [::db/pool]}]
(fn [request]
(let [{:keys [perms profile-id expires-at]} (some->> (::id request) (get-token-data pool))]
(handler (cond-> request
(some? perms)
(assoc ::perms perms)
(some? profile-id)
(assoc ::profile-id profile-id)
(some? expires-at)
(assoc ::expires-at expires-at))))))
(def soft-auth
{:name ::soft-auth
:compile (fn [& _]
(when (contains? cf/flags :access-tokens)
wrap-soft-auth))})
(def authz
{:name ::authz
:compile (fn [& _]
(when (contains? cf/flags :access-tokens)
wrap-authz))})