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webvirtcloud/datasource/views.py

64 lines
1.7 KiB
Python

from django.shortcuts import render
from django.http import HttpResponse, Http404
from accounts.models import UserInstance, UserSSHKey
import json
import socket
OS_VERSIONS = [ 'latest', '' ]
OS_UUID = "iid-dswebvirtcloud"
def os_index(request):
response = '\n'.join(OS_VERSIONS)
return HttpResponse(response)
def os_metadata_json(request, version):
"""
:param request:
:param version:
:return:
"""
if version == 'latest':
ip = get_client_ip(request)
hostname = get_hostname_by_ip(ip)
response = { 'uuid': OS_UUID, 'hostname': hostname }
return HttpResponse(json.dumps(response))
else:
err = 'Invalid version: %s' % version
raise Http404(err)
def os_userdata(request, version):
"""
:param request:
:param version:
:return:
"""
if version == 'latest':
ip = get_client_ip(request)
hostname = get_hostname_by_ip(ip)
vname = hostname.split('.')[0]
instance_keys = []
userinstances = UserInstance.objects.filter(instance__name=vname)
for ui in userinstances:
keys = UserSSHKey.objects.filter(user=ui.user)
for k in keys:
instance_keys.append(k.keypublic)
return render(request, 'user_data', locals())
else:
err = 'Invalid version: %s' % version
raise Http404(err)
def get_client_ip(request):
x_forwarded_for = request.META.get('HTTP_X_FORWARDED_FOR')
if x_forwarded_for:
ip = x_forwarded_for.split(',')[-1].strip()
else:
ip = request.META.get('REMOTE_ADDR')
return ip
def get_hostname_by_ip(ip):
addrs = socket.gethostbyaddr(ip)
return addrs[0]