mirror of
https://github.com/retspen/webvirtcloud
synced 2026-11-08 11:16:47 +00:00
3e427a41b8
Instance.proxy looked the domain up by its stored name. After a rename or a name swap outside WebVirtCloud, an operation on one VM changed another; after a VM was replaced under the same name, operations hit the new VM. wvmInstance takes the UUID and uses lookupByUUIDString, with no fallback to the name: a missing UUID fails instead of picking another domain. Every caller that has an Instance passes it: proxy, console, quota, post-migration autostart and the VDI URL. Migration uses the domain the proxy already resolved. getvvfile and the gstfsd requests use the host's current name of that UUID. Live tests cover a name swap and a VM replaced under the same name; both fail on the previous code.
116 lines
3 KiB
Python
116 lines
3 KiB
Python
import socket
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from accounts.models import UserInstance, UserSSHKey
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from computes.models import Compute
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from django.core.exceptions import PermissionDenied
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from django.http import Http404, HttpResponse, JsonResponse
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from django.shortcuts import get_object_or_404, render
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from instances.models import Instance
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from instances.utils import can_open_console
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from libvirt import libvirtError
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from vrtManager.instance import wvmInstance
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OS_VERSIONS = ["latest", ""]
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OS_UUID = "iid-dswebvirtcloud"
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def os_index(request):
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"""
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:param request:
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:return:
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"""
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response = "\n".join(OS_VERSIONS)
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return HttpResponse(response)
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def os_metadata_json(request, version):
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"""
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:param request:
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:param version:
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:return:
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"""
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if version == "latest":
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ip = get_client_ip(request)
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hostname = get_hostname_by_ip(ip)
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response = {"uuid": OS_UUID, "hostname": hostname}
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return JsonResponse(response)
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else:
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err = "Invalid version: %(version)s" % {"version": version}
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raise Http404(err)
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def os_userdata(request, version):
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"""
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:param request:
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:param version:
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:return:
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"""
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if version == "latest":
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ip = get_client_ip(request)
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hostname = get_hostname_by_ip(ip)
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vname = hostname.split(".")[0]
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instance_keys = []
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userinstances = UserInstance.objects.filter(instance__name=vname)
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for ui in userinstances:
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keys = UserSSHKey.objects.filter(user=ui.user)
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for k in keys:
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instance_keys.append(k.keypublic)
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return render(request, "user_data", locals())
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else:
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err = "Invalid version: %(version)s" % {"version": version}
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raise Http404(err)
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def get_client_ip(request):
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"""
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:param request:
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:return:
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"""
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x_forwarded_for = request.META.get("HTTP_X_FORWARDED_FOR")
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if x_forwarded_for:
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ip = x_forwarded_for.split(",")[-1].strip()
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else:
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ip = request.META.get("REMOTE_ADDR")
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return ip
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def get_hostname_by_ip(ip):
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"""
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:param ip:
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:return:
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"""
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try:
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addrs = socket.gethostbyaddr(ip)
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except:
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addrs = [ip]
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return addrs[0]
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def get_vdi_url(request, compute_id, vname):
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"""
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:param request:
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:param vname:
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:return:
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"""
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compute = get_object_or_404(Compute, pk=compute_id)
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# The VDI URL points straight at the VM's console: same rule as the console.
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instance = Instance.objects.filter(compute=compute, name=vname).first()
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if instance is None or not can_open_console(request.user, instance):
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raise PermissionDenied
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try:
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conn = wvmInstance(
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compute.hostname, compute.login, compute.password, compute.type, vname, uuid=instance.uuid
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)
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fqdn = get_hostname_by_ip(compute.hostname)
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url = f"{conn.get_console_type()}://{fqdn}:{conn.get_console_port()}"
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response = url
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return HttpResponse(response)
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except libvirtError:
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err = "Error getting VDI URL for %(name)s" % {"name": vname}
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raise Http404(err)
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