diff options
Diffstat (limited to 'src/scm/webid-oidc/client/gui/authorizations-widget.scm')
| -rw-r--r-- | src/scm/webid-oidc/client/gui/authorizations-widget.scm | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/src/scm/webid-oidc/client/gui/authorizations-widget.scm b/src/scm/webid-oidc/client/gui/authorizations-widget.scm new file mode 100644 index 0000000..ba76185 --- /dev/null +++ b/src/scm/webid-oidc/client/gui/authorizations-widget.scm @@ -0,0 +1,150 @@ +;; disfluid, implementation of the Solid specification +;; Copyright (C) 2021 Vivien Kraus + +;; This program is free software: you can redistribute it and/or modify +;; it under the terms of the GNU Affero General Public License as +;; published by the Free Software Foundation, either version 3 of the +;; License, or (at your option) any later version. + +;; This program is distributed in the hope that it will be useful, +;; but WITHOUT ANY WARRANTY; without even the implied warranty of +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;; GNU Affero General Public License for more details. + +;; You should have received a copy of the GNU Affero General Public License +;; along with this program. If not, see <https://www.gnu.org/licenses/>. + +(define-module (webid-oidc client gui authorizations-widget) + #:use-module (gi) + #:use-module (gi types) + #:use-module (gi util) + #:use-module (ice-9 match) + #:use-module (ice-9 exceptions) + #:use-module (ice-9 i18n) + #:use-module (ice-9 receive) + #:use-module (ice-9 optargs) + #:use-module (ice-9 pretty-print) + #:use-module (ice-9 atomic) + #:use-module (srfi srfi-9) + #:use-module (srfi srfi-19) + #:use-module (srfi srfi-26) + #:use-module (webid-oidc errors) + #:use-module ((webid-oidc stubs) #:prefix stubs:) + #:use-module ((webid-oidc config) #:prefix config:) + #:use-module (webid-oidc web-i18n) + #:use-module (webid-oidc client client) + #:use-module (webid-oidc client accounts) + #:use-module (webid-oidc client gui authorization-prompt) + #:use-module ((webid-oidc client gui settings) #:prefix settings:) + #:use-module ((webid-oidc client gui clock) #:prefix clock:) + #:use-module (webid-oidc client gui application-hooks) + #:use-module (webid-oidc jwk) + #:use-module (webid-oidc oidc-id-token) + #:use-module (web uri) + #:use-module (web response) + #:use-module (rnrs bytevectors) + #:use-module (oop goops) + #:declarative? #t + #:duplicates (merge-generics) + #:export + ( + authorizations-widget + use-authorizations-widget + )) + +(push-duplicate-handler! 'merge-generics) + +;; This avoids a crash when compiling the module +(use-typelibs ("GdkPixbuf" "2.0") + ("Gtk" "3.0")) + +(define authorizations-widget #f) +(define by-uri (make-hash-table)) + +(define authorizations-widget #f) + +;; Since authorizations may be requested by any threads, they are +;; collected here and a timer updates the GUI every so often. +(define pending-authorizations + (make-atomic-box '())) + +(define (update-ui) + (let ((authz (atomic-box-ref pending-authorizations))) + (let ((confirmed (atomic-box-compare-and-swap! pending-authorizations authz '()))) + (if (eq? authz confirmed) + (let add-authorization ((authz authz)) + (match authz + (() ;; done + #t) + (((reason uri continuation) authz ...) + (let ((value (uri->string uri))) + (match (or (hash-ref by-uri value) + (receive (builder widget handle) + ((@ (webid-oidc client gui authorization-prompt) + make-authorization-prompt) uri) + (let ((ret `(,builder ,widget ,handle))) + (hash-set! by-uri value ret) + (box:pack-start authorizations-widget widget #t #t 0) + ret))) + ((_ widget handle) + ;; Put it on top + (container:remove authorizations-widget widget) + (box:pack-start authorizations-widget widget #t #t 0) + ;; Add (reason, continuation) to the + ;; existing or created widget + (handle reason + (lambda (code) + ;; When the button is + ;; clicked, first remove + ;; the widget if it still + ;; exists + (when (hash-ref by-uri value) + (hash-remove! by-uri value) + (container:remove authorizations-widget widget)) + ((@ (ice-9 threads) call-with-new-thread) + (lambda () + ;; In case the + ;; continuation expects + ;; further authorizations: + (use-authorizations-widget + (lambda () + (continuation code))))))))))))) + ;; Else, retry + (update-ui))))) + +(define (use-authorizations-widget f) + (let ((prompt (make-prompt-tag))) + (call-with-prompt prompt + (lambda () + (parameterize + ((authorization-process + (lambda* (uri #:key reason) + (abort-to-prompt + prompt + (lambda (continuation) + (let save ((other (atomic-box-ref pending-authorizations))) + (let ((confirmed + (atomic-box-compare-and-swap! + pending-authorizations + other + `((,reason ,uri ,continuation) ,@other)))) + (unless (eq? confirmed other) + (save (atomic-box-ref pending-authorizations)))))))))) + (f))) + (lambda (continuation handler) + (handler continuation))))) + +(define (update-ui-next) + (update-ui) + (clock:wait + (lambda () + (update-ui-next)))) + +(define (build-widget app) + (unless authorizations-widget + (set! authorizations-widget (box:new (symbol->orientation 'vertical) 8)) + (clock:wait + (lambda () + (update-ui-next))))) + +(add-hook! application-activated-hook build-widget) |