[pve-devel] [PATCH http-server v2 1/2] add error message into http body

[Dominik Csapak]

In our rust client, we can't access the http reason phrases[0], so let's
put them into the body itself if we don't specify an explicit content.

our proxmox-client code in rust already uses the body as message if
there is one [1], so we get that automatically.

0: https://github.com/hyperium/http/issues/737
1: https://git.proxmox.com/?p=proxmox.git;a=blob;f=proxmox-client/src/client.rs;h=9b078a9820405b22ca54c17ea4da4c586e0649b4;hb=refs/heads/master#l237

Signed-off-by: Dominik Csapak <d.csapak at proxmox.com>
---
changes from rfc:
* add a comment why we don't set the content type

 src/PVE/APIServer/AnyEvent.pm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/PVE/APIServer/AnyEvent.pm b/src/PVE/APIServer/AnyEvent.pm
index b94e1aa..9a1e35a 100644
--- a/src/PVE/APIServer/AnyEvent.pm
+++ b/src/PVE/APIServer/AnyEvent.pm
@@ -389,6 +389,9 @@ sub error {
     my ($self, $reqstate, $code, $msg, $hdr, $content) = @_;
 
     eval {
+	$content //= $msg; # write error into body by default
+	# lack of content type here means either 'application/octet-stream' or the client
+	# can guess. This is fine since we don't know what content/msg actually contains.
 	my $resp = HTTP::Response->new($code, $msg, $hdr, $content);
 	$self->response($reqstate, $resp);
     };
-- 
2.39.5