From 93ea07c6515546dd96f05858057b398005694497 Mon Sep 17 00:00:00 2001
From: Petro Vashchuk <stalkernoid@gmail.com>
Date: Tue, 10 Aug 2021 18:08:53 +0300
Subject: [PATCH] Bug 28759: limit accessibility for "Manage API keys"

This patch limits the accessibility for "Manage API keys" section only
to superlibrarians and the owner of that said API key account.

The way it does it is by checking if user is superlibrarian or if
logged-in user is the same as a patron id/borrower number is the same
as logged-in user number both in template and apikeys.pl and making sure
the link is inaccessible or redirects to the 403 page if user tries to
go there directly.

To reproduce:
1) create/pick existing patron, set Staff access, allows viewing
of catalogue in staff interface (catalogue)" and "Add, modify and
iew patron information (borrowers)" permissions on;
2) enable "RESTOAuth2ClientCredentials" in sysprefs;
3) login with that user into staff interface;
4) check any other patron, go to the "More"->"Manage API keys" and
check that you can see, add delete their API keys;
5) apply patch;
6) with that same user try to access "Manage API keys" page again.
Ensure that you can't access that page of other patrons but can
access your own page and manage your own API keys.
7) log in with superlibrarian now and ensure that you can access every
"Manage API keys" page of every patron and apply changes there.
---
 .../intranet-tmpl/prog/en/includes/members-toolbar.inc      | 2 +-
 members/apikeys.pl                                          | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/koha-tmpl/intranet-tmpl/prog/en/includes/members-toolbar.inc b/koha-tmpl/intranet-tmpl/prog/en/includes/members-toolbar.inc
index 44d6f800a6..6b0d8c12ac 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/includes/members-toolbar.inc
+++ b/koha-tmpl/intranet-tmpl/prog/en/includes/members-toolbar.inc
@@ -57,7 +57,7 @@
                 [% END %]
 
                 [% IF Koha.Preference('RESTOAuth2ClientCredentials') %]
-                    [% IF CAN_user_borrowers_edit_borrowers %]
+                    [% IF CAN_user_superlibrarian OR loggedinusernumber == patron.borrowernumber %]
                         <li><a id="apikeys" href="/cgi-bin/koha/members/apikeys.pl?patron_id=[% patron.borrowernumber | html %]">Manage API keys</a></li>
                     [% ELSE %]
                         <li class="disabled"><a data-toggle="tooltip" data-placement="left" title="You are not authorized to manage API keys" id="apikeys" href="#">Manage API keys</a></li>
diff --git a/members/apikeys.pl b/members/apikeys.pl
index f6fde368e4..7d28b1cb32 100755
--- a/members/apikeys.pl
+++ b/members/apikeys.pl
@@ -52,6 +52,12 @@ if ( not defined $patron or
     exit;
 }
 
+if( $patron_id != $loggedinuser && !C4::Context->IsSuperLibrarian() ) {
+    # not the owner of the account viewing/editing own API keys, nor superlibrarian -> exit
+    print $cgi->redirect("/cgi-bin/koha/errors/403.pl"); # escape early
+    exit;
+}
+
 my $op = $cgi->param('op') // '';
 
 if ( $op eq 'generate' or
-- 
2.31.1