import os import time import json import socket import crypt from string import letters, digits from random import choice from bisect import insort from django.http import HttpResponse, HttpResponseRedirect from django.core.urlresolvers import reverse from django.shortcuts import render, get_object_or_404 from django.utils.translation import ugettext_lazy as _ from django.contrib.auth.decorators import login_required from computes.models import Compute from instances.models import Instance from accounts.models import UserInstance, UserSSHKey from vrtManager.hostdetails import wvmHostDetails from vrtManager.instance import wvmInstance, wvmInstances from vrtManager.connection import connection_manager from libvirt import libvirtError, VIR_DOMAIN_XML_SECURE from webvirtcloud.settings import QEMU_KEYMAPS, QEMU_CONSOLE_TYPES from logs.views import addlogmsg from django.conf import settings @login_required def index(request): """ :param request: :return: """ return HttpResponseRedirect(reverse('instances')) @login_required def instances(request): """ :param request: :return: """ error_messages = [] all_host_vms = {} all_user_vms = {} computes = Compute.objects.all() if not request.user.is_superuser: user_instances = UserInstance.objects.filter(user_id=request.user.id) for usr_inst in user_instances: if connection_manager.host_is_up(usr_inst.instance.compute.type, usr_inst.instance.compute.hostname): conn = wvmHostDetails(usr_inst.instance.compute, usr_inst.instance.compute.login, usr_inst.instance.compute.password, usr_inst.instance.compute.type) all_user_vms[usr_inst] = conn.get_user_instances(usr_inst.instance.name) all_user_vms[usr_inst].update({'compute_id': usr_inst.instance.compute.id}) else: for comp in computes: if connection_manager.host_is_up(comp.type, comp.hostname): try: conn = wvmHostDetails(comp, comp.login, comp.password, comp.type) if conn.get_host_instances(): all_host_vms[comp.id, comp.name] = conn.get_host_instances() for vm, info in conn.get_host_instances().items(): try: check_uuid = Instance.objects.get(compute_id=comp.id, name=vm) if check_uuid.uuid != info['uuid']: check_uuid.save() all_host_vms[comp.id, comp.name][vm]['is_template'] = check_uuid.is_template except Instance.DoesNotExist: check_uuid = Instance(compute_id=comp.id, name=vm, uuid=info['uuid']) check_uuid.save() conn.close() except libvirtError as lib_err: error_messages.append(lib_err) if request.method == 'POST': name = request.POST.get('name', '') compute_id = request.POST.get('compute_id', '') instance = Instance.objects.get(compute_id=compute_id, name=name) try: conn = wvmInstances(instance.compute.hostname, instance.compute.login, instance.compute.password, instance.compute.type) if 'poweron' in request.POST: msg = _("Power On") addlogmsg(request.user.username, instance.name, msg) conn.start(name) return HttpResponseRedirect(request.get_full_path()) if 'poweroff' in request.POST: msg = _("Power Off") addlogmsg(request.user.username, instance.name, msg) conn.shutdown(name) return HttpResponseRedirect(request.get_full_path()) if 'powercycle' in request.POST: msg = _("Power Cycle") conn.force_shutdown(name) conn.start(name) addlogmsg(request.user.username, instance.name, msg) return HttpResponseRedirect(request.get_full_path()) if 'getvvfile' in request.POST: msg = _("Send console.vv file") addlogmsg(request.user.username, instance.name, msg) response = HttpResponse(content='', content_type='application/x-virt-viewer', status=200, reason=None, charset='utf-8') response.writelines('[virt-viewer]\n') response.writelines('type=' + conn.graphics_type(name) + '\n') response.writelines('host=' + conn.graphics_listen(name) + '\n') response.writelines('port=' + conn.graphics_port(name) + '\n') response.writelines('title=' + conn.domain_name(name) + '\n') response.writelines('password=' + conn.graphics_passwd(name) + '\n') response.writelines('enable-usbredir=1\n') response.writelines('disable-effects=all\n') response.writelines('secure-attention=ctrl+alt+ins\n') response.writelines('release-cursor=ctrl+alt\n') response.writelines('fullscreen=1\n') response.writelines('delete-this-file=1\n') response['Content-Disposition'] = 'attachment; filename="console.vv"' return response if request.user.is_superuser: if 'suspend' in request.POST: msg = _("Suspend") addlogmsg(request.user.username, instance.name, msg) conn.suspend(name) return HttpResponseRedirect(request.get_full_path()) if 'resume' in request.POST: msg = _("Resume") addlogmsg(request.user.username, instance.name, msg) conn.resume(name) return HttpResponseRedirect(request.get_full_path()) except libvirtError as lib_err: error_messages.append(lib_err) addlogmsg(request.user.username, instance.name, lib_err.message) return render(request, 'instances.html', locals()) @login_required def instance(request, compute_id, vname): """ :param request: :return: """ error_messages = [] messages = [] compute = get_object_or_404(Compute, pk=compute_id) computes = Compute.objects.all() computes_count = len(computes) publickeys = UserSSHKey.objects.filter(user_id=request.user.id) keymaps = QEMU_KEYMAPS console_types = QEMU_CONSOLE_TYPES try: userinstace = UserInstance.objects.get(instance__compute_id=compute_id, instance__name=vname, user__id=request.user.id) except UserInstance.DoesNotExist: userinstace = None if not request.user.is_superuser: if not userinstace: return HttpResponseRedirect(reverse('index')) def show_clone_disk(disks, vname=''): clone_disk = [] for disk in disks: if disk['image'] is None: continue if disk['image'].count("-") and disk['image'].rsplit("-", 1)[0] == vname: name, suffix = disk['image'].rsplit("-", 1) image = name + "-clone" + "-" + suffix elif disk['image'].count(".") and len(disk['image'].rsplit(".", 1)[1]) <= 7: name, suffix = disk['image'].rsplit(".", 1) image = name + "-clone" + "." + suffix else: image = disk['image'] + "-clone" clone_disk.append( {'dev': disk['dev'], 'storage': disk['storage'], 'image': image, 'format': disk['format']}) return clone_disk def filesizefstr(size_str): if size_str == '': return 0 size_str = size_str.encode('ascii', 'ignore').upper().translate(None, " B") if 'K' == size_str[-1]: return long(float(size_str[:-1]))<<10 elif 'M' == size_str[-1]: return long(float(size_str[:-1]))<<20 elif 'G' == size_str[-1]: return long(float(size_str[:-1]))<<30 elif 'T' == size_str[-1]: return long(float(size_str[:-1]))<<40 elif 'P' == size_str[-1]: return long(float(size_str[:-1]))<<50 else: return long(float(size_str)) def get_clone_free_names(size=10): prefix = settings.CLONE_INSTANCE_DEFAULT_PREFIX free_names = [] existing_names = [i.name for i in Instance.objects.filter(name__startswith=prefix)] index = 1 while len(free_names) < size: new_name = prefix + str(index) if new_name not in existing_names: free_names.append(new_name) index += 1 return free_names def check_user_quota(): userinstances = UserInstance.objects.filter(user__id=request.user.id) instances_count = len(userinstances) cpus_count = instances_count memory_count = instances_count * 2048 if request.user.userattributes.max_instances > 0 and instances_count > request.user.userattributes.max_instances: return "instance" if request.user.userattributes.max_cpus > 0 and cpus_count > request.user.userattributes.max_cpus: return "cpu" if request.user.userattributes.max_memory > 0 and memory_count > request.user.userattributes.max_memory: return "memory" return "" try: conn = wvmInstance(compute.hostname, compute.login, compute.password, compute.type, vname) status = conn.get_status() autostart = conn.get_autostart() vcpu = conn.get_vcpu() cur_vcpu = conn.get_cur_vcpu() uuid = conn.get_uuid() memory = conn.get_memory() cur_memory = conn.get_cur_memory() title = conn.get_title() description = conn.get_description() disks = conn.get_disk_device() media = conn.get_media_device() networks = conn.get_net_device() media_iso = sorted(conn.get_iso_media()) vcpu_range = conn.get_max_cpus() memory_range = [256, 512, 768, 1024, 2048, 4096, 6144, 8192, 16384] if memory not in memory_range: insort(memory_range, memory) if cur_memory not in memory_range: insort(memory_range, cur_memory) memory_host = conn.get_max_memory() vcpu_host = len(vcpu_range) telnet_port = conn.get_telnet_port() console_type = conn.get_console_type() console_port = conn.get_console_port() console_keymap = conn.get_console_keymap() snapshots = sorted(conn.get_snapshot(), reverse=True) inst_xml = conn._XMLDesc(VIR_DOMAIN_XML_SECURE) has_managed_save_image = conn.get_managed_save_image() clone_disks = show_clone_disk(disks, vname) console_passwd = conn.get_console_passwd() clone_free_names = get_clone_free_names() try: instance = Instance.objects.get(compute_id=compute_id, name=vname) if instance.uuid != uuid: instance.uuid = uuid instance.save() except Instance.DoesNotExist: instance = Instance(compute_id=compute_id, name=vname, uuid=uuid) instance.save() if request.method == 'POST': if 'poweron' in request.POST: conn.start() msg = _("Power On") addlogmsg(request.user.username, instance.name, msg) return HttpResponseRedirect(request.get_full_path() + '#poweron') if 'powercycle' in request.POST: conn.force_shutdown() conn.start() msg = _("Power Cycle") addlogmsg(request.user.username, instance.name, msg) return HttpResponseRedirect(request.get_full_path() + '#powercycle') if 'poweroff' in request.POST: conn.shutdown() msg = _("Power Off") addlogmsg(request.user.username, instance.name, msg) return HttpResponseRedirect(request.get_full_path() + '#poweroff') if 'powerforce' in request.POST: conn.force_shutdown() msg = _("Force Off") addlogmsg(request.user.username, instance.name, msg) return HttpResponseRedirect(request.get_full_path() + '#powerforce') if 'delete' in request.POST: if conn.get_status() == 1: conn.force_shutdown() if request.POST.get('delete_disk', ''): conn.delete_disk() conn.delete() instance = Instance.objects.get(compute_id=compute_id, name=vname) instance_name = instance.name instance.delete() if not request.user.is_superuser: del_userinstance = UserInstance.objects.get(id=userinstace.id) del_userinstance.delete() else: try: del_userinstance = UserInstance.objects.filter(instance__compute_id=compute_id, instance__name=vname) del_userinstance.delete() except UserInstance.DoesNotExist: pass msg = _("Destroy") addlogmsg(request.user.username, instance_name, msg) return HttpResponseRedirect(reverse('instances')) if 'rootpasswd' in request.POST: passwd = request.POST.get('passwd', '') passwd_hash = crypt.crypt(passwd, '$6$kgPoiREy') data = {'action': 'password', 'passwd': passwd_hash, 'vname': vname} if conn.get_status() == 5: s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((compute.hostname, 16510)) s.send(json.dumps(data)) result = json.loads(s.recv(1024)) s.close() msg = _("Reset root password") addlogmsg(request.user.username, instance.name, msg) if result['return'] == 'success': messages.append(msg) else: error_messages.append(msg) else: msg = _("Please shutdow down your instance and then try again") error_messages.append(msg) if 'addpublickey' in request.POST: sshkeyid = request.POST.get('sshkeyid', '') publickey = UserSSHKey.objects.get(id=sshkeyid) data = {'action': 'publickey', 'key': publickey.keypublic, 'vname': vname} if conn.get_status() == 5: s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((compute.hostname, 16510)) s.send(json.dumps(data)) result = json.loads(s.recv(1024)) s.close() msg = _("Installed new ssh public key %s" % publickey.keyname) addlogmsg(request.user.username, instance.name, msg) if result['return'] == 'success': messages.append(msg) else: error_messages.append(msg) else: msg = _("Please shutdow down your instance and then try again") error_messages.append(msg) if 'resize' in request.POST: vcpu = request.POST.get('vcpu', '') cur_vcpu = request.POST.get('cur_vcpu', '') memory = request.POST.get('memory', '') memory_custom = request.POST.get('memory_custom', '') if memory_custom: memory = memory_custom cur_memory = request.POST.get('cur_memory', '') cur_memory_custom = request.POST.get('cur_memory_custom', '') if cur_memory_custom: cur_memory = cur_memory_custom disks_new = [] for disk in disks: input_disk_size = filesizefstr(request.POST.get('disk_size_' + disk['dev'], '')) if input_disk_size > disk['size']+(64<<20): disk['size_new'] = input_disk_size disks_new.append(disk) conn.resize(cur_memory, memory, cur_vcpu, vcpu, disks_new) msg = _("Resize") addlogmsg(request.user.username, instance.name, msg) return HttpResponseRedirect(request.get_full_path() + '#resize') if 'umount_iso' in request.POST: image = request.POST.get('path', '') dev = request.POST.get('umount_iso', '') conn.umount_iso(dev, image) msg = _("Mount media") addlogmsg(request.user.username, instance.name, msg) return HttpResponseRedirect(request.get_full_path() + '#media') if 'mount_iso' in request.POST: image = request.POST.get('media', '') dev = request.POST.get('mount_iso', '') conn.mount_iso(dev, image) msg = _("Umount media") addlogmsg(request.user.username, instance.name, msg) return HttpResponseRedirect(request.get_full_path() + '#media') if 'snapshot' in request.POST: name = request.POST.get('name', '') conn.create_snapshot(name) msg = _("New snapshot") addlogmsg(request.user.username, instance.name, msg) return HttpResponseRedirect(request.get_full_path() + '#restoresnapshot') if 'delete_snapshot' in request.POST: snap_name = request.POST.get('name', '') conn.snapshot_delete(snap_name) msg = _("Delete snapshot") addlogmsg(request.user.username, instance.name, msg) return HttpResponseRedirect(request.get_full_path() + '#restoresnapshot') if 'revert_snapshot' in request.POST: snap_name = request.POST.get('name', '') conn.snapshot_revert(snap_name) msg = _("Successful revert snapshot: ") msg += snap_name messages.append(msg) msg = _("Revert snapshot") addlogmsg(request.user.username, instance.name, msg) if request.user.is_superuser: if 'suspend' in request.POST: conn.suspend() msg = _("Suspend") addlogmsg(request.user.username, instance.name, msg) return HttpResponseRedirect(request.get_full_path() + '#resume') if 'resume' in request.POST: conn.resume() msg = _("Resume") addlogmsg(request.user.username, instance.name, msg) return HttpResponseRedirect(request.get_full_path() + '#suspend') if 'set_autostart' in request.POST: conn.set_autostart(1) msg = _("Set autostart") addlogmsg(request.user.username, instance.name, msg) return HttpResponseRedirect(request.get_full_path() + '#autostart') if 'unset_autostart' in request.POST: conn.set_autostart(0) msg = _("Unset autostart") addlogmsg(request.user.username, instance.name, msg) return HttpResponseRedirect(request.get_full_path() + '#autostart') if 'change_xml' in request.POST: exit_xml = request.POST.get('inst_xml', '') if exit_xml: conn._defineXML(exit_xml) msg = _("Edit XML") addlogmsg(request.user.username, instance.name, msg) return HttpResponseRedirect(request.get_full_path() + '#xmledit') if 'set_console_passwd' in request.POST: if request.POST.get('auto_pass', ''): passwd = ''.join([choice(letters + digits) for i in xrange(12)]) else: passwd = request.POST.get('console_passwd', '') clear = request.POST.get('clear_pass', False) if clear: passwd = '' if not passwd and not clear: msg = _("Enter the console password or select Generate") error_messages.append(msg) if not error_messages: if not conn.set_console_passwd(passwd): msg = _("Error setting console password. You should check that your instance have an graphic device.") error_messages.append(msg) else: msg = _("Set VNC password") addlogmsg(request.user.username, instance.name, msg) return HttpResponseRedirect(request.get_full_path() + '#vncsettings') if 'set_console_keymap' in request.POST: keymap = request.POST.get('console_keymap', '') clear = request.POST.get('clear_keymap', False) if clear: conn.set_console_keymap('') else: conn.set_console_keymap(keymap) msg = _("Set VNC keymap") addlogmsg(request.user.username, instance.name, msg) return HttpResponseRedirect(request.get_full_path() + '#vncsettings') if 'set_console_type' in request.POST: console_type = request.POST.get('console_type', '') conn.set_console_type(console_type) msg = _("Set VNC type") addlogmsg(request.user.username, instance.name, msg) return HttpResponseRedirect(request.get_full_path() + '#vncsettings') if 'migrate' in request.POST: compute_id = request.POST.get('compute_id', '') live = request.POST.get('live_migrate', False) unsafe = request.POST.get('unsafe_migrate', False) xml_del = request.POST.get('xml_delete', False) new_compute = Compute.objects.get(id=compute_id) conn_migrate = wvmInstances(new_compute.hostname, new_compute.login, new_compute.password, new_compute.type) conn_migrate.moveto(conn, vname, live, unsafe, xml_del) conn_migrate.define_move(vname) conn_migrate.close() msg = _("Migrate") addlogmsg(request.user.username, instance.name, msg) return HttpResponseRedirect(reverse('instance', args=[compute_id, vname])) if 'change_network' in request.POST: network_data = {} for post in request.POST: if post.startswith('net-'): network_data[post] = request.POST.get(post, '') conn.change_network(network_data) msg = _("Edit network") addlogmsg(request.user.username, instance.name, msg) return HttpResponseRedirect(request.get_full_path() + '#network') if 'change_options' in request.POST: instance.is_template = request.POST.get('is_template', False) instance.save() options = {} for post in request.POST: if post in ['title', 'description']: options[post] = request.POST.get(post, '') conn.set_options(options) msg = _("Edit options") addlogmsg(request.user.username, instance.name, msg) return HttpResponseRedirect(request.get_full_path() + '#options') if request.user.is_superuser or request.user.userattributes.can_clone_instances: if 'clone' in request.POST: clone_data = {} clone_data['name'] = request.POST.get('name', '') quota_msg = check_user_quota() if quota_msg: msg = _("User %s quota reached, cannot create '%s'!" % (quota_msg, clone_data['name'])) error_messages.append(msg) check_instance = Instance.objects.filter(name=clone_data['name']) if check_instance: msg = _("Instance '%s' already exists!" % clone_data['name']) error_messages.append(msg) else: for post in request.POST: clone_data[post] = request.POST.get(post, '') new_uuid = conn.clone_instance(clone_data) new_instance = Instance(compute_id=compute_id, name=clone_data['name'], uuid=new_uuid) new_instance.save() userinstance = UserInstance(instance_id=new_instance.id, user_id=request.user.id) userinstance.save() msg = _("Clone of '%s'" % instance.name) addlogmsg(request.user.username, new_instance.name, msg) return HttpResponseRedirect(reverse('instance', args=[compute_id, clone_data['name']])) conn.close() except libvirtError as lib_err: error_messages.append(lib_err.message) addlogmsg(request.user.username, vname, lib_err.message) return render(request, 'instance.html', locals()) @login_required def inst_status(request, compute_id, vname): """ :param request: :return: """ compute = get_object_or_404(Compute, pk=compute_id) response = HttpResponse() response['Content-Type'] = "text/javascript" try: conn = wvmInstance(compute.hostname, compute.login, compute.password, compute.type, vname) data = json.dumps({'status': conn.get_status()}) conn.close() except libvirtError: data = json.dumps({'error': 'Error 500'}) response.write(data) return response @login_required def inst_graph(request, compute_id, vname): """ :param request: :return: """ datasets = {} json_blk = [] datasets_blk = {} json_net = [] datasets_net = {} cookies = {} points = 5 curent_time = time.strftime("%H:%M:%S") compute = get_object_or_404(Compute, pk=compute_id) response = HttpResponse() response['Content-Type'] = "text/javascript" def check_points(dataset): if len(dataset) > points: dataset.pop(0) return dataset try: conn = wvmInstance(compute.hostname, compute.login, compute.password, compute.type, vname) cpu_usage = conn.cpu_usage() blk_usage = conn.disk_usage() net_usage = conn.net_usage() conn.close() try: cookies['cpu'] = request.COOKIES['cpu'] cookies['blk'] = request.COOKIES['blk'] cookies['net'] = request.COOKIES['net'] cookies['timer'] = request.COOKIES['timer'] except KeyError: cookies['cpu'] = None cookies['blk'] = None cookies['net'] = None if not cookies['cpu']: datasets['cpu'] = [0] * points datasets['timer'] = [0] * points else: datasets['cpu'] = eval(cookies['cpu']) datasets['timer'] = eval(cookies['timer']) datasets['timer'].append(curent_time) datasets['cpu'].append(int(cpu_usage['cpu'])) datasets['timer'] = check_points(datasets['timer']) datasets['cpu'] = check_points(datasets['cpu']) for blk in blk_usage: if not cookies['blk']: datasets_wr = [0] * points datasets_rd = [0] * points else: datasets['blk'] = eval(cookies['blk']) datasets_rd = datasets['blk'][blk['dev']][0] datasets_wr = datasets['blk'][blk['dev']][1] datasets_rd.append(int(blk['rd']) / 1048576) datasets_wr.append(int(blk['wr']) / 1048576) datasets_rd = check_points(datasets_rd) datasets_wr = check_points(datasets_wr) json_blk.append({'dev': blk['dev'], 'data': [datasets_rd, datasets_wr]}) datasets_blk[blk['dev']] = [datasets_rd, datasets_wr] for net in net_usage: if not cookies['net']: datasets_rx = [0] * points datasets_tx = [0] * points else: datasets['net'] = eval(cookies['net']) datasets_rx = datasets['net'][net['dev']][0] datasets_tx = datasets['net'][net['dev']][1] datasets_rx.append(int(net['rx']) / 1048576) datasets_tx.append(int(net['tx']) / 1048576) datasets_rx = check_points(datasets_rx) datasets_tx = check_points(datasets_tx) json_net.append({'dev': net['dev'], 'data': [datasets_rx, datasets_tx]}) datasets_net[net['dev']] = [datasets_rx, datasets_tx] data = json.dumps({'cpudata': datasets['cpu'], 'blkdata': json_blk, 'netdata': json_net, 'timeline': datasets['timer']}) response.cookies['cpu'] = datasets['cpu'] response.cookies['timer'] = datasets['timer'] response.cookies['blk'] = datasets_blk response.cookies['net'] = datasets_net except libvirtError: data = json.dumps({'error': 'Error 500'}) response.write(data) return response @login_required def guess_mac_address(request, vname): dhcp_file = '/srv/webvirtcloud/dhcpd.conf' data = { 'vname': vname, 'mac': '52:54:00:' } if os.path.isfile(dhcp_file): with open(dhcp_file, 'r') as f: name_found = False for line in f: if "host %s." % vname in line: name_found = True if name_found and "hardware ethernet" in line: data['mac'] = line.split(' ')[-1].strip().strip(';') break return HttpResponse(json.dumps(data)); @login_required def check_instance(request, vname): check_instance = Instance.objects.filter(name=vname) data = { 'vname': vname, 'exists': False } if check_instance: data['exists'] = True return HttpResponse(json.dumps(data));