def get_user(self, user_id):
try:
# Fetch user.
user = User.objects.get(pk=user_id)
except User.DoesNotExist:
user = None
else:
# Does the user have a current session?
if user.vac_cookie is None or user.last_validation is None:
user = None
# Is a revalidation needed?
elif user.last_validation < (
timezone.now() -
datetime.timedelta(seconds=REVALIDATION_FREQUENCY)):
# Check session against the VAC.
try:
vac = VAC(user.vac_cookie)
if vac.validate_session():
# Update VAC cookie info.
user.last_validation = timezone.now()
user.save()
else:
# Session is no longer valid.
user.vac_cookie = None
user.save()
user = None
# Problems revalidating. VAC unavailable? Log out user.
except VAC.Exception as e:
user = None
logging.getLogger('vac-templater').exception(e)
# Done!
return user
def authenticate(self, username=None, password=None):
# Authenticate against the VAC.
vac = VAC()
if vac.login(username, password):
# Recover or build user instance.
try:
user = User.objects.get(username=username)
except User.DoesNotExist:
user = User(username=username)
# Update VAC cookie info.
user.vac_cookie = vac.cookie
user.last_validation = timezone.now()
user.save()
# Done!
return user
return None
def irun(self, username, group_id, vcl_commit_id, vcl_content, changes):
deployment = None
error = None
try:
try:
user = User.objects.get(pk=username)
except User.DoesNotExist:
error = _('Error retrieving the current user. Reconnect and '
'try again.')
else:
if user.vac_cookie:
try:
vac = VAC(user.vac_cookie)
group = vac.group(group_id)
if group:
vcl = vac.vcl(group.active_vcl)
if vcl:
vcl_commit = vac.vcl_head(vcl.id)
if vcl_commit:
if vcl_commit.id == vcl_commit_id:
# Push VCL.
result = vac.vcl_push(
vcl.id, vcl_content, group.id,
vcl_commit_id)
if result['success']:
# Keep track of this deployment.
deployment = Deployment(
user=user,
group_name=group.name,
group_oid=group.id,
branch_name=vcl.name,
branch_oid=vcl.id,
old_head_oid=vcl_commit.id,
new_head_oid=result['vcl'].id,
vcl=result['vcl'].content,
message=result['message'],
changes=changes)
deployment.save()
# Notify by e-mail.
send_templated_mail(
template_name=
'emails/vcl/deploy.email',
from_email=settings.
DEFAULT_FROM_EMAIL,
to=[
admin[1] for admin in
settings.ADMINS
],
bcc=settings.
DEFAULT_BCC_EMAILS,
context={
'base_url':
settings.BASE_URL,
'deployment': deployment,
},
)
else:
error = result['message']
else:
error = _(
'The VCL has been modified while '
'you were updating it! Please, '
'redo all required changes and '
'try again.')
else:
error = _(
'The VCL has been undeployed from '
'this group while you were updating '
'it! No changes have been made.')
else:
error = _(
'The VCL has been undeployed from this '
'group while you were updating it! No '
'changes have been made.')
else:
error = _('The selected group no longer exists.')
except VAC.AuthenticationException:
error = _('Your session in the VAC has been '
'automatically expired. Reconnect and try'
'again.')
except VAC.Exception as e:
logging.getLogger('vac-templater').exception(e)
error = _('Failed to connect to the VAC. Is it '
'running? Do you have r/w access to it?')
else:
error = _('You must be authenticated to the VAC. '
'Reconnect and try again.')
except Exception as e:
error = 'Exception: %s' % e
return {
'deployment_id': deployment.id if deployment else None,
'error': error,
}
def irun(self, username, group_id, vcl_commit_id, vcl_content, changes):
deployment = None
error = None
try:
try:
user = User.objects.get(pk=username)
except User.DoesNotExist:
error = _("Error retrieving the current user. Reconnect and " "try again.")
else:
if user.vac_cookie:
try:
vac = VAC(user.vac_cookie)
group = vac.group(group_id)
if group:
vcl = vac.vcl(group.active_vcl)
if vcl:
vcl_commit = vac.vcl_head(vcl.id)
if vcl_commit:
if vcl_commit.id == vcl_commit_id:
# Push VCL.
result = vac.vcl_push(vcl.id, vcl_content, group.id, vcl_commit_id)
if result["success"]:
# Keep track of this deployment.
deployment = Deployment(
user=user,
group_name=group.name,
group_oid=group.id,
branch_name=vcl.name,
branch_oid=vcl.id,
old_head_oid=vcl_commit.id,
new_head_oid=result["vcl"].id,
vcl=result["vcl"].content,
message=result["message"],
changes=changes,
)
deployment.save()
# Notify by e-mail.
send_templated_mail(
template_name="emails/vcl/deploy.email",
from_email=settings.DEFAULT_FROM_EMAIL,
to=[admin[1] for admin in settings.ADMINS],
bcc=settings.DEFAULT_BCC_EMAILS,
context={"base_url": settings.BASE_URL, "deployment": deployment},
)
else:
error = result["message"]
else:
error = _(
"The VCL has been modified while "
"you were updating it! Please, "
"redo all required changes and "
"try again."
)
else:
error = _(
"The VCL has been undeployed from "
"this group while you were updating "
"it! No changes have been made."
)
else:
error = _(
"The VCL has been undeployed from this "
"group while you were updating it! No "
"changes have been made."
)
else:
error = _("The selected group no longer exists.")
except VAC.AuthenticationException:
error = _(
"Your session in the VAC has been " "automatically expired. Reconnect and try" "again."
)
except VAC.Exception as e:
logging.getLogger("vac-templater").exception(e)
error = _("Failed to connect to the VAC. Is it " "running? Do you have r/w access to it?")
else:
error = _("You must be authenticated to the VAC. " "Reconnect and try again.")
except Exception as e:
error = "Exception: %s" % e
return {"deployment_id": deployment.id if deployment else None, "error": error}
def _process(self, request):
cache_group_form = None
deploy_form = None
try:
vac = VAC(request.user.vac_cookie)
# Cache group selected?
cache_group_form = CacheGroupForm(
vac, prefix='cache-group', data=request.POST or None)
if cache_group_form.is_bound and cache_group_form.is_valid():
# Deploying?
deploying = (request.POST.get('op') == 'deploy')
deploy_form = DeployForm(
vac,
cache_group_form.cleaned_data['group'],
request.user,
prefix='settings',
data=request.POST if deploying else None)
if deploy_form.is_bound:
if deploy_form.is_valid():
if deploy_form.changes:
deploy_form.execute()
token = tasks.enqueue(
request,
PushVCLTask,
request.user.username,
deploy_form.group.id,
deploy_form.vcl_commit.id,
deploy_form.new_vcl,
deploy_form.changes,
callback={
'fn': (
'vac_templater.views.vcl.Deploy',
'callback',
),
'context': {},
})
return HttpResponseAjax([
commands.show_progress(token),
], request)
else:
messages.warning(
request,
_('No changes have been done to the settings. '
'There is no new VCL to be deployed.'))
else:
if deploy_form.non_field_errors():
for error in deploy_form.non_field_errors():
messages.error(request, error)
else:
messages.error(
request,
_('There are some errors in the values you '
'supplied. Please, fix them and try again.'))
# Unauthenticated VAC request.
except VAC.AuthenticationException:
messages.error(request, _(
'Your session has automatically expired. Please, log in '
'again.'))
# Clear VAC cookie info.
request.user.vac_cookie = None
request.user.save()
# Logout locally.
auth.logout(request)
return HttpResponseRedirect(reverse('home'))
# Failed VAC request.
except VAC.Exception as e:
logging.getLogger('vac-templater').exception(e)
messages.error(request, _(
'Failed to connect to the VAC. Is it running? Do you have r/w '
'access to it?'))
return {
'template': 'vac-templater/vcl/deploy.html',
'context': {
'cache_group_form': cache_group_form,
'deploy_form': deploy_form,
},
}
