import sha
import hmac
import datetime
+import StringIO
+import getafsgroups
-sys.stderr = sys.stdout
+errio = StringIO.StringIO()
+sys.stderr = errio
sys.path.append('/home/ecprice/.local/lib/python2.5/site-packages')
from Cheetah.Template import Template
typo) but not setting an invalid boot CD (which requires bypassing
the select box).
"""
- pass
+ def __init__(self, err_field, err_value, expl=None):
+ MyException.__init__(self, expl)
+ self.err_field = err_field
+ self.err_value = err_value
class CodeError(MyException):
"""Exception for internal errors or bad faith input."""
def __get_uptimes(self):
if not hasattr(self, '_uptimes'):
- self._uptimes = getUptimes(self.machines)
+ self._uptimes = getUptimes(Machine.select())
return self._uptimes
uptimes = property(__get_uptimes)
MAX_VMS_TOTAL = 10
MAX_VMS_ACTIVE = 4
-def getMachinesByOwner(owner):
- """Return the machines owned by a given owner."""
+def getMachinesByOwner(user, machine=None):
+ """Return the machines owned by the same as a machine.
+
+ If the machine is None, return the machines owned by the same
+ user.
+ """
+ if machine:
+ owner = machine.owner
+ else:
+ owner = user.username
return Machine.select_by(owner=owner)
-def maxMemory(user, machine=None):
+def maxMemory(user, machine=None, on=True):
"""Return the maximum memory for a machine or a user.
If machine is None, return the memory available for a new
machine. Else, return the maximum that machine can have.
- on is a dictionary from machines to booleans, whether a machine is
- on. If None, it is recomputed. XXX make this global?
+ on is whether the machine should be turned on. If false, the max
+ memory for the machine to change to, if it is left off, is
+ returned.
"""
-
- machines = getMachinesByOwner(user.username)
+ if not on:
+ return MAX_MEMORY_SINGLE
+ machines = getMachinesByOwner(user, machine)
active_machines = [x for x in machines if g.uptimes[x]]
mem_usage = sum([x.memory for x in active_machines if x != machine])
return min(MAX_MEMORY_SINGLE, MAX_MEMORY_TOTAL-mem_usage)
def maxDisk(user, machine=None):
- machines = getMachinesByOwner(user.username)
+ machines = getMachinesByOwner(user, machine)
disk_usage = sum([sum([y.size for y in x.disks])
for x in machines if x != machine])
return min(MAX_DISK_SINGLE, MAX_DISK_TOTAL-disk_usage/1024.)
def canAddVm(user):
- machines = getMachinesByOwner(user.username)
+ machines = getMachinesByOwner(user)
active_machines = [x for x in machines if g.uptimes[x]]
return (len(machines) < MAX_VMS_TOTAL and
len(active_machines) < MAX_VMS_ACTIVE)
def haveAccess(user, machine):
- """Return whether a user has access to a machine"""
+ """Return whether a user has adminstrative access to a machine"""
+ if user.username == 'moo':
+ return True
+ if user.username in (machine.administrator, machine.owner):
+ return True
+ if getafsgroups.checkAfsGroup(user.username, machine.administrator, 'athena.mit.edu'): #XXX Cell?
+ return True
+ if getafsgroups.checkLockerOwner(user.username, machine.owner):
+ return True
+ return owns(user, machine)
+
+def owns(user, machine):
+ """Return whether a user owns a machine"""
if user.username == 'moo':
return True
- return machine.owner == user.username
+ return getafsgroups.checkLockerOwner(user.username, machine.owner)
-def error(op, user, fields, err):
+def error(op, user, fields, err, emsg):
"""Print an error page when a CodeError occurs"""
- d = dict(op=op, user=user, errorMessage=str(err))
- print Template(file='error.tmpl', searchList=[d, global_dict]);
+ d = dict(op=op, user=user, errorMessage=str(err),
+ stderr=emsg)
+ return Template(file='error.tmpl', searchList=[d, global_dict]);
+
+def invalidInput(op, user, fields, err, emsg):
+ """Print an error page when an InvalidInput exception occurs"""
+ d = dict(op=op, user=user, err_field=err.err_field,
+ err_value=str(err.err_value), stderr=emsg,
+ errorMessage=str(err))
+ return Template(file='invalid.tmpl', searchList=[d, global_dict]);
def validMachineName(name):
"""Check that name is valid for a machine name"""
p.wait()
return p.stdout.read(), p.stderr.read()
if p.wait():
- raise CodeError('ERROR on remctl %s: %s' %
- (args, p.stderr.read()))
+ print >> sys.stderr, 'Error on remctl', args, ':'
+ print >> sys.stderr, p.stderr.read()
+ raise CodeError('ERROR on remctl')
return p.stdout.read()
def lvcreate(machine, disk):
id of the CD (e.g. 'gutsy_i386')
"""
if cdtype is not None:
- remctl('web', 'vmboot', machine.name,
+ remctl('control', machine.name, 'create',
cdtype)
else:
- remctl('web', 'vmboot', machine.name)
+ remctl('control', machine.name, 'create')
def registerMachine(machine):
"""Register a machine to be controlled by the web interface"""
stack[-1].extend(v.split())
return stack[-1]
-def getUptimes(machines):
+def getUptimes(machines=None):
"""Return a dictionary mapping machine names to uptime strings"""
value_string = remctl('web', 'listvms')
lines = value_string.splitlines()
Gets and parses xm list --long
"""
- value_string, err_string = remctl('list-long', machine.name, err=True)
+ value_string, err_string = remctl('control', machine.name, 'list-long', err=True)
if 'Unknown command' in err_string:
raise CodeError("ERROR in remctl list-long %s is not registered" % (machine.name,))
elif 'does not exist' in err_string:
transaction = ctx.current.create_transaction()
try:
if memory > maxMemory(user):
- raise InvalidInput("Too much memory requested")
+ raise InvalidInput('memory', memory,
+ "Max %s" % maxMemory(user))
if disk > maxDisk(user) * 1024:
- raise InvalidInput("Too much disk requested")
+ raise InvalidInput('disk', disk,
+ "Max %s" % maxDisk(user))
if not canAddVm(user):
- raise InvalidInput("Too many VMs requested")
+ raise InvalidInput('create', True, 'Unable to create more VMs')
res = meta.engine.execute('select nextval(\'"machines_machine_id_seq"\')')
id = res.fetchone()[0]
machine = Machine()
machine.name = name
machine.memory = memory
machine.owner = user.username
+ machine.administrator = user.username
machine.contact = user.email
machine.uuid = uuidToString(randomUUID())
machine.boot_off_cd = True
return machine
-def validMemory(user, memory, machine=None):
- """Parse and validate limits for memory for a given user and machine."""
+def validMemory(user, memory, machine=None, on=True):
+ """Parse and validate limits for memory for a given user and machine.
+
+ on is whether the memory must be valid after the machine is
+ switched on.
+ """
try:
memory = int(memory)
if memory < MIN_MEMORY_SINGLE:
raise ValueError
except ValueError:
- raise InvalidInput("Invalid memory amount; must be at least %s MB" %
- MIN_MEMORY_SINGLE)
- if memory > maxMemory(user, machine):
- raise InvalidInput("Too much memory requested")
+ raise InvalidInput('memory', memory,
+ "Minimum %s MB" % MIN_MEMORY_SINGLE)
+ if memory > maxMemory(user, machine, on):
+ raise InvalidInput('memory', memory,
+ 'Maximum %s MB' % maxMemory(user, machine))
return memory
def validDisk(user, disk, machine=None):
try:
disk = float(disk)
if disk > maxDisk(user, machine):
- raise InvalidInput("Too much disk requested")
+ raise InvalidInput('disk', disk,
+ "Maximum %s G" % maxDisk(user, machine))
disk = int(disk * 1024)
if disk < MIN_DISK_SINGLE * 1024:
raise ValueError
except ValueError:
- raise InvalidInput("Invalid disk amount; minimum is %s GB" %
- MIN_DISK_SINGLE)
+ raise InvalidInput('disk', disk,
+ "Minimum %s GB" % MIN_DISK_SINGLE)
return disk
def create(user, fields):
"""Handler for create requests."""
name = fields.getfirst('name')
if not validMachineName(name):
- raise InvalidInput("Invalid name '%s'" % name)
- name = user.username + '_' + name.lower()
+ raise InvalidInput('name', name)
+ name = name.lower()
if Machine.get_by(name=name):
- raise InvalidInput("A machine named '%s' already exists" % name)
+ raise InvalidInput('name', name,
+ "Already exists")
memory = fields.getfirst('memory')
- memory = validMemory(user, memory)
+ memory = validMemory(user, memory, on=True)
disk = fields.getfirst('disk')
disk = validDisk(user, disk)
machine = createVm(user, name, memory, disk, is_hvm, cdrom)
d = dict(user=user,
machine=machine)
- print Template(file='create.tmpl',
+ return Template(file='create.tmpl',
searchList=[d, global_dict]);
def listVms(user, fields):
default_disk=min(4.0, max_disk),
machines=machines,
has_vnc=has_vnc,
- uptimes=uptimes,
+ uptimes=g.uptimes,
cdroms=CDROM.select())
- print Template(file='list.tmpl', searchList=[d, global_dict])
+ return Template(file='list.tmpl', searchList=[d, global_dict])
def testMachineId(user, machineId, exists=True):
"""Parse, validate and check authorization for a given machineId.
machine=machine,
hostname=os.environ.get('SERVER_NAME', 'localhost'),
authtoken=token)
- print Template(file='vnc.tmpl',
+ return Template(file='vnc.tmpl',
searchList=[d, global_dict])
def getNicInfo(data_dict, machine):
def deleteVM(machine):
"""Delete a VM."""
+ remctl('control', machine.name, 'destroy', err=True)
transaction = ctx.current.create_transaction()
delete_disk_pairs = [(machine.name, d.guest_device_name) for d in machine.disks]
try:
def command(user, fields):
"""Handler for running commands like boot and delete on a VM."""
- print time.time()-start_time
+ print >> sys.stderr, time.time()-start_time
machine = testMachineId(user, fields.getfirst('machine_id'))
action = fields.getfirst('action')
cdrom = fields.getfirst('cdrom')
- print time.time()-start_time
+ print >> sys.stderr, time.time()-start_time
if cdrom is not None and not CDROM.get(cdrom):
raise CodeError("Invalid cdrom type '%s'" % cdrom)
if action not in ('Reboot', 'Power on', 'Power off', 'Shutdown', 'Delete VM'):
raise CodeError("Invalid action '%s'" % action)
if action == 'Reboot':
if cdrom is not None:
- remctl('reboot', machine.name, cdrom)
+ remctl('control', machine.name, 'reboot', cdrom)
else:
- remctl('reboot', machine.name)
+ remctl('control', machine.name, 'reboot')
elif action == 'Power on':
if maxMemory(user) < machine.memory:
- raise InvalidInput("You don't have enough free RAM quota")
+ raise InvalidInput('action', 'Power on',
+ "You don't have enough free RAM quota to turn on this machine")
bootMachine(machine, cdrom)
elif action == 'Power off':
- remctl('destroy', machine.name)
+ remctl('control', machine.name, 'destroy')
elif action == 'Shutdown':
- remctl('shutdown', machine.name)
+ remctl('control', machine.name, 'shutdown')
elif action == 'Delete VM':
deleteVM(machine)
- print time.time()-start_time
+ print >> sys.stderr, time.time()-start_time
d = dict(user=user,
command=action,
machine=machine)
- print Template(file="command.tmpl", searchList=[d, global_dict])
-
+ return Template(file="command.tmpl", searchList=[d, global_dict])
+
+def testAdmin(user, admin, machine):
+ if admin in (None, machine.administrator):
+ return None
+ if admin == user.username:
+ return admin
+ if getafsgroups.checkAfsGroup(user.username, admin, 'athena.mit.edu'):
+ return admin
+ if getafsgroups.checkAfsGroup(user.username, 'system:'+admin, 'athena.mit.edu'):
+ return 'system:'+admin
+ raise InvalidInput('admin', admin,
+ 'You must control the group you move it to')
+
+def testOwner(user, owner, machine):
+ if owner in (None, machine.owner):
+ return None
+ #XXX should you be able to transfer ownership if you don't already own it?
+ #if not owns(user, machine):
+ # raise InvalidInput('owner', owner, "You don't own this machine, so you can't transfer ownership")
+ value = getafsgroups.checkLockerOwner(user.username, owner, verbose=True)
+ if value == True:
+ return owner
+ raise InvalidInput('owner', owner, value)
+
+def testContact(user, contact, machine=None):
+ if contact in (None, machine.contact):
+ return None
+ if not re.match("^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$", contact, re.I):
+ raise InvalidInput('contact', contact, "Not a valid email")
+ return contact
+
+def testDisk(user, disksize, machine=None):
+ return disksize
+
+def testName(user, name, machine=None):
+ if name in (None, machine.name):
+ return None
+ if not Machine.select_by(name=name):
+ return name
+ raise InvalidInput('name', name, "Already taken")
+
+def testHostname(user, hostname, machine):
+ for nic in machine.nics:
+ if hostname == nic.hostname:
+ return hostname
+ # check if doesn't already exist
+ if NIC.select_by(hostname=hostname):
+ raise InvalidInput('hostname', hostname,
+ "Already exists")
+ if not re.match("^[A-Z0-9-]{1,22}$", hostname, re.I):
+ raise InvalidInput('hostname', hostname, "Not a valid hostname; must only use number, letters, and dashes.")
+ return hostname
+
def modify(user, fields):
"""Handler for modifying attributes of a machine."""
- #XXX not written yet
- machine = testMachineId(user, fields.getfirst('machine_id'))
-
+
+ olddisk = {}
+ transaction = ctx.current.create_transaction()
+ try:
+ machine = testMachineId(user, fields.getfirst('machine_id'))
+ owner = testOwner(user, fields.getfirst('owner'), machine)
+ admin = testAdmin(user, fields.getfirst('administrator'), machine)
+ contact = testContact(user, fields.getfirst('contact'), machine)
+ hostname = testHostname(owner, fields.getfirst('hostname'), machine)
+ name = testName(user, fields.getfirst('name'), machine)
+ oldname = machine.name
+ command="modify"
+
+ memory = fields.getfirst('memory')
+ if memory is not None:
+ memory = validMemory(user, memory, machine, on=False)
+ machine.memory = memory
+
+ disksize = testDisk(user, fields.getfirst('disk'))
+ if disksize is not None:
+ disksize = validDisk(user, disksize, machine)
+ disk = machine.disks[0]
+ if disk.size != disksize:
+ olddisk[disk.guest_device_name] = disksize
+ disk.size = disksize
+ ctx.current.save(disk)
+
+ # XXX first NIC gets hostname on change? Interface doesn't support more.
+ for nic in machine.nics[:1]:
+ nic.hostname = hostname
+ ctx.current.save(nic)
+
+ if owner is not None:
+ machine.owner = owner
+ if name is not None:
+ machine.name = name
+ if admin is not None:
+ machine.administrator = admin
+ if contact is not None:
+ machine.contact = contact
+
+ ctx.current.save(machine)
+ transaction.commit()
+ except:
+ transaction.rollback()
+ raise
+ for diskname in olddisk:
+ remctl("web", "lvresize", oldname, diskname, str(olddisk[diskname]))
+ if name is not None:
+ for disk in machine.disks:
+ remctl("web", "lvrename", oldname, disk.guest_device_name, name)
+ remctl("web", "moveregister", oldname, name)
+ d = dict(user=user,
+ command=command,
+ machine=machine)
+ return Template(file="command.tmpl", searchList=[d, global_dict])
+
+
def help(user, fields):
"""Handler for help messages."""
simple = fields.getfirst('simple')
HVM machines use the virtualization features of the processor, while
ParaVM machines use Xen's emulation of virtualization features. You
want an HVM virtualized machine.""",
- cpu_weight="""Don't ask us! We're as mystified as you are.""")
+ cpu_weight="""Don't ask us! We're as mystified as you are.""",
+ owner="""The owner field is used to determine <a href="help?subject=quotas">quotas</a>. It must be the name
+of a locker that you are an AFS administrator of. In particular, you
+or an AFS group you are a member of must have AFS rlidwka bits on the
+locker. You can check see who administers the LOCKER locker using the
+command 'fs la /mit/LOCKER' on Athena.) See also <a href="help?subject=administrator">administrator</a>.""",
+ administrator="""The administrator field determines who can access the console and power on and off the machine. This can be either a user or a moira group.""",
+ quotas="""Quotas are determined on a per-locker basis. Each
+quota may have a maximum of 512 megabytes of active ram, 50 gigabytes of disk, and 4 active machines."""
+
+ )
+ if not subjects:
+ subjects = sorted(mapping.keys())
+
d = dict(user=user,
simple=simple,
subjects=subjects,
mapping=mapping)
- print Template(file="help.tmpl", searchList=[d, global_dict])
+ return Template(file="help.tmpl", searchList=[d, global_dict])
def info(user, fields):
if status is None:
main_status = dict(name=machine.name,
memory=str(machine.memory))
+ uptime=None
+ cputime=None
else:
main_status = dict(status[1:])
- start_time = float(main_status.get('start_time', 0))
- uptime = datetime.timedelta(seconds=int(time.time()-start_time))
- cpu_time_float = float(main_status.get('cpu_time', 0))
- cputime = datetime.timedelta(seconds=int(cpu_time_float))
+ start_time = float(main_status.get('start_time', 0))
+ uptime = datetime.timedelta(seconds=int(time.time()-start_time))
+ cpu_time_float = float(main_status.get('cpu_time', 0))
+ cputime = datetime.timedelta(seconds=int(cpu_time_float))
display_fields = """name uptime memory state cpu_weight on_reboot
on_poweroff on_crash on_xend_start on_xend_stop bootloader""".split()
display_fields = [('name', 'Name'),
('owner', 'Owner'),
+ ('administrator', 'Administrator'),
('contact', 'Contact'),
('type', 'Type'),
'NIC_INFO',
machine_info['name'] = machine.name
machine_info['type'] = machine.type.hvm and 'HVM' or 'ParaVM'
machine_info['owner'] = machine.owner
+ machine_info['administrator'] = machine.administrator
machine_info['contact'] = machine.contact
nic_fields = getNicInfo(machine_info, machine)
main_status['memory'] += ' MB'
for field, disp in display_fields:
- if field in ('uptime', 'cputime'):
+ if field in ('uptime', 'cputime') and locals()[field] is not None:
fields.append((disp, locals()[field]))
elif field in machine_info:
fields.append((disp, machine_info[field]))
ram=machine.memory,
max_mem=max_mem,
max_disk=max_disk,
+ owner_help=helppopup("owner"),
fields = fields)
- print Template(file='info.tmpl',
+ return Template(file='info.tmpl',
searchList=[d, global_dict])
mapping = dict(list=listVms,
u.email = 'nobody'
connect('postgres://sipb-xen@sipb-xen-dev/sipb_xen')
operation = os.environ.get('PATH_INFO', '')
- #print 'Content-Type: text/plain\n'
- #print operation
if not operation:
print "Status: 301 Moved Permanently"
print 'Location: ' + os.environ['SCRIPT_NAME']+'/\n'
sys.exit(0)
- print 'Content-Type: text/html\n'
if operation.startswith('/'):
operation = operation[1:]
if not operation:
operation = 'list'
-
- fun = mapping.get(operation,
- lambda u, e:
- error(operation, u, e,
- "Invalid operation '%s'" % operation))
+
+ def badOperation(u, e):
+ raise CodeError("Unknown operation")
+
+ fun = mapping.get(operation, badOperation)
if fun not in (help, ):
connect('postgres://sipb-xen@sipb-xen-dev/sipb_xen')
try:
- fun(u, fields)
+ output = fun(u, fields)
+ print 'Content-Type: text/html\n'
+ sys.stderr=sys.stdout
+ errio.seek(0)
+ e = errio.read()
+ if e:
+ output = str(output)
+ output = output.replace('<body>', '<body><p>STDERR:</p><pre>'+e+'</pre>')
+ print output
except CodeError, err:
- error(operation, u, fields, err)
+ print 'Content-Type: text/html\n'
+ sys.stderr=sys.stdout
+ errio.seek(0)
+ e = errio.read()
+ print error(operation, u, fields, err, e)
except InvalidInput, err:
- error(operation, u, fields, err)
+ print 'Content-Type: text/html\n'
+ sys.stderr=sys.stdout
+ errio.seek(0)
+ e = errio.read()
+ print invalidInput(operation, u, fields, err, e)
+ except:
+ print 'Content-Type: text/plain\n'
+ sys.stderr=sys.stdout
+ errio.seek(0)
+ e = errio.read()
+ print e
+ print '----'
+ raise
projects / invirt/packages/invirt-web.git / blobdiff