[pve-devel] [PATCH access-control] api: role: remove role references from acl rules on role deletion

[Daniel Kral <d.kral@proxmox.com>]

Let the API endpoint `DELETE /access/roles/{roleid}` or command
`pveum role delete <roleid>` remove any ACL rules in the user
configuration, which reference the removed role.

Before this change, the removal of a role has caused the role to remain
in existing ACL rules, which referenced the removed role. Therefore, on
each parse of the user configuration, a warning was be displayed:

user config - ignore invalid acl role '<role>'

Signed-off-by: Daniel Kral <d.kral@proxmox.com>
---
 src/PVE/API2/Role.pm     |  2 +-
 src/PVE/AccessControl.pm | 23 +++++++++++++++++++++++
 2 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/src/PVE/API2/Role.pm b/src/PVE/API2/Role.pm
index a924018..6e75a3c 100644
--- a/src/PVE/API2/Role.pm
+++ b/src/PVE/API2/Role.pm
@@ -212,7 +212,7 @@ __PACKAGE__->register_method ({
 
 	    delete ($usercfg->{roles}->{$role});
 
-	    # fixme: delete role from acl?
+	    PVE::AccessControl::delete_role_acl($role, $usercfg);
 
 	    cfs_write_file("user.cfg", $usercfg);
 	}, "delete role failed");
diff --git a/src/PVE/AccessControl.pm b/src/PVE/AccessControl.pm
index 47f2d38..4bbbe80 100644
--- a/src/PVE/AccessControl.pm
+++ b/src/PVE/AccessControl.pm
@@ -1022,6 +1022,29 @@ sub delete_group_acl {
     iterate_acl_tree("/", $usercfg->{acl_root}, $code);
 }
 
+sub delete_role_acl_for_each {
+    my ($role, $acl_subjects) = @_;
+
+    for my $subject (sort keys %$acl_subjects) {
+	delete ($acl_subjects->{$subject}->{$role})
+	    if $acl_subjects->{$subject}->{$role};
+    }
+}
+
+sub delete_role_acl {
+    my ($role, $usercfg) = @_;
+
+    my $code = sub {
+	my ($path, $acl_node) = @_;
+
+	delete_role_acl_for_each($role, $acl_node->{groups});
+	delete_role_acl_for_each($role, $acl_node->{users});
+	delete_role_acl_for_each($role, $acl_node->{tokens});
+    };
+
+    iterate_acl_tree("/", $usercfg->{acl_root}, $code);
+}
+
 sub delete_pool_acl {
     my ($pool, $usercfg) = @_;
 
-- 
2.39.5



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