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feat(operations): the job worker

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catborise 2026-10-13 18:32:36 +03:00
parent 34582d23f3
commit a35284bbc9
10 changed files with 791 additions and 50 deletions
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38
webvirtcloud/middleware.py
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@ -2,47 +2,23 @@ from django.contrib import messages
from django.http import JsonResponse
from django.shortcuts import redirect, render
from django.utils.translation import gettext_lazy as _
import libvirt
from libvirt import libvirtError
from operations import claims
from operations.utils import busy_message, summary
from vrtManager.util import ConnectionFailed
from operations.utils import busy_message, public_error_text, summary
API_PREFIX = "/api/"
# errors of the connection to the host, not of the operation: both the
# domain and the code must match (a daemon that lacks a procedure answers
# VIR_FROM_RPC / VIR_ERR_NO_SUPPORT, which the user should see)
TRANSPORT_ERROR_DOMAINS = {libvirt.VIR_FROM_RPC, libvirt.VIR_FROM_REMOTE, libvirt.VIR_FROM_SSH, libvirt.VIR_FROM_LIBSSH}
TRANSPORT_ERROR_CODES = {
libvirt.VIR_ERR_INTERNAL_ERROR, # "connection closed due to keepalive timeout"
libvirt.VIR_ERR_SYSTEM_ERROR, # "Cannot recv data: ..."
libvirt.VIR_ERR_RPC,
libvirt.VIR_ERR_NO_CONNECT,
libvirt.VIR_ERR_AUTH_FAILED,
libvirt.VIR_ERR_AUTH_UNAVAILABLE,
libvirt.VIR_ERR_AUTH_CANCELLED,
libvirt.VIR_ERR_SSH,
libvirt.VIR_ERR_LIBSSH,
}
UNREACHABLE = _("The host of this virtual machine cannot be reached right now.")
def error_text(request, exception):
"""
The libvirt error to show. A connection error names the host and how it
is reached, which only administrators (superusers and the global
view_instances permission, who see the hosts) get; other users learn
that the host cannot be reached.
The libvirt error to show. Administrators (superusers and the global
view_instances permission, who see the hosts) get the full error; other
users the public text.
"""
connection_error = isinstance(exception, ConnectionFailed) or (
isinstance(exception, libvirtError)
and exception.get_error_domain() in TRANSPORT_ERROR_DOMAINS
and exception.get_error_code() in TRANSPORT_ERROR_CODES
)
user = getattr(request, "user", None)
if connection_error and not (user and (user.is_superuser or user.has_perm("instances.view_instances"))):
return str(UNREACHABLE)
return str(exception)
if user and (user.is_superuser or user.has_perm("instances.view_instances")):
return str(exception)
return public_error_text(exception)
class ExceptionMiddleware: