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diff --git a/src/scm/webid-oidc/client/gui/accounts-widget-logic.scm b/src/scm/webid-oidc/client/gui/accounts-widget-logic.scm
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+;; 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 accounts-widget-logic)
+  #: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 threads)
+  #:use-module (srfi srfi-9)
+  #:use-module (srfi srfi-19)
+  #:use-module (srfi srfi-26)
+  #:use-module (webid-oidc errors)
+  #:use-module ((webid-oidc parameters) #:prefix p:)
+  #:use-module ((webid-oidc stubs) #:prefix stubs:)
+  #:use-module ((webid-oidc config) #:prefix config:)
+  #:use-module (webid-oidc web-i18n)
+  #:use-module (webid-oidc offloading)
+  #:use-module (webid-oidc client client)
+  #:use-module (webid-oidc client accounts)
+  #:use-module (webid-oidc client gui account-widget)
+  #: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 client gui authorizations-widget)
+  #: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
+  (
+   add-account-button-clicked
+   ))
+
+(define (add-account-button-clicked issuer clear-issuer-entry!)
+  (define (as-host-name host)
+    (false-if-exception
+     (build-uri 'https #:host host)))
+  (match issuer
+    ((or (? string? (= string->uri (? uri? uri)))
+         (? string? (= as-host-name (? uri? uri))))
+     (clear-issuer-entry!)
+     (use-authorizations-widget
+      (lambda ()
+        (let ((new-account
+               (make <account>
+                 #:issuer uri)))
+          (clock:wait
+           (lambda ()
+             (let ((old (settings:main-account))
+                   (other (settings:other-accounts)))
+               (if old
+                   (settings:other-accounts `(,new-account ,@other))
+                   (settings:main-account new-account)))))))))
+    (else
+     (format (current-error-port) (G_ "Stub: please enter an URI or a host name...\n")))))