X-Git-Url: http://xvm.mit.edu/gitweb/invirt/packages/invirt-web.git/blobdiff_plain/7633211e629493fd53f3f24762f34dc0ff46cfa4..6d171bbcd3eb2d5d60fc6c4bc9ef12608421d7c1:/code/validation.py diff --git a/code/validation.py b/code/validation.py index 7eb1b4f..f6e4a59 100644 --- a/code/validation.py +++ b/code/validation.py @@ -4,7 +4,8 @@ import cache_acls import getafsgroups import re import string -from sipb_xen_database import Machine, NIC, Type, Disk +from invirt.database import Machine, NIC, Type, Disk, CDROM, Autoinstall +from invirt.config import structs as config from webcommon import InvalidInput MAX_MEMORY_TOTAL = 512 @@ -17,16 +18,26 @@ MAX_VMS_TOTAL = 10 MAX_VMS_ACTIVE = 4 class Validate: - def __init__(self, username, state, machine_id=None, name=None, owner=None, + def __init__(self, username, state, machine_id=None, name=None, description=None, owner=None, admin=None, contact=None, memory=None, disksize=None, - vmtype=None, cdrom=None, clone_from=None): + vmtype=None, cdrom=None, autoinstall=None, strict=False): # XXX Successive quota checks aren't a good idea, since you # can't necessarily change the locker and disk size at the # same time. created_new = (machine_id is None) + if strict: + if name is None: + raise InvalidInput('name', name, "You must provide a machine name.") + if description is None: + raise InvalidInput('description', description, "You must provide a description.") + if memory is None: + raise InvalidInput('memory', memory, "You must provide a memory size.") + if disksize is None: + raise InvalidInput('disk', disksize, "You must provide a disk size.") + if machine_id is not None: - self.machine = testMachineId(username, machine_id) + self.machine = testMachineId(username, state, machine_id) machine = getattr(self, 'machine', None) owner = testOwner(username, owner, machine) @@ -41,21 +52,22 @@ class Validate: name = testName(username, name, machine) if name is not None: self.name = name + description = testDescription(username, description, machine) + if description is not None: + self.description = description if memory is not None: self.memory = validMemory(self.owner, state, memory, machine, on=not created_new) if disksize is not None: - self.disksize = validDisk(self.owner, disksize, machine) + self.disksize = validDisk(self.owner, state, disksize, machine) if vmtype is not None: self.vmtype = validVmType(vmtype) if cdrom is not None: if not CDROM.get(cdrom): raise CodeError("Invalid cdrom type '%s'" % cdrom) self.cdrom = cdrom - if clone_from is not None: - if clone_from not in ('ice3', ): - raise CodeError("Invalid clone image '%s'" % clone_from) - self.clone_from = clone_from + if autoinstall is not None: + self.autoinstall = Autoinstall.get(autoinstall) def getMachinesByOwner(owner, machine=None): @@ -112,9 +124,10 @@ def cantAddVm(owner, g): 'To create more, turn one off.') return False -def haveAccess(user, machine): +def haveAccess(user, state, machine): """Return whether a user has administrative access to a machine""" - return user in cache_acls.accessList(machine) + return (user in cache_acls.accessList(machine) + or (machine.adminable and state.isadmin)) def owns(user, machine): """Return whether a user owns a machine""" @@ -124,8 +137,8 @@ def validMachineName(name): """Check that name is valid for a machine name""" if not name: return False - charset = string.ascii_letters + string.digits + '-_' - if name[0] in '-_' or len(name) > 22: + charset = string.lowercase + string.digits + '-' + if '-' in (name[0], name[-1]) or len(name) > 63: return False for x in name: if x not in charset: @@ -146,16 +159,16 @@ def validMemory(owner, g, memory, machine=None, on=True): raise InvalidInput('memory', memory, "Minimum %s MiB" % MIN_MEMORY_SINGLE) max_val = maxMemory(owner, g, machine, on) - if memory > max_val: + if not g.isadmin and memory > max_val: raise InvalidInput('memory', memory, 'Maximum %s MiB for %s' % (max_val, owner)) return memory -def validDisk(owner, disk, machine=None): +def validDisk(owner, g, disk, machine=None): """Parse and validate limits for disk for a given owner and machine.""" try: disk = float(disk) - if disk > maxDisk(owner, machine): + if not g.isadmin and disk > maxDisk(owner, machine): raise InvalidInput('disk', disk, "Maximum %s G" % maxDisk(owner, machine)) disk = int(disk * 1024) @@ -174,7 +187,7 @@ def validVmType(vm_type): raise CodeError("Invalid vm type '%s'" % vm_type) return t -def testMachineId(user, machine_id, exists=True): +def testMachineId(user, state, machine_id, exists=True): """Parse, validate and check authorization for a given user and machine. If exists is False, don't check that it exists. @@ -189,7 +202,7 @@ def testMachineId(user, machine_id, exists=True): machine = Machine.get(machine_id) if exists and machine is None: raise InvalidInput('machine_id', machine_id, "Does not exist.") - if machine is not None and not haveAccess(user, machine): + if machine is not None and not haveAccess(user, state, machine): raise InvalidInput('machine_id', machine_id, "You do not have access to this machine.") return machine @@ -211,7 +224,7 @@ def testAdmin(user, admin, machine): return admin admin = 'system:' + admin try: - if user in getafsgroups.getAfsGroupMembers(admin, 'athena.mit.edu'): + if user in getafsgroups.getAfsGroupMembers(admin, config.authz[0].cell): return admin except getafsgroups.AfsProcessError, e: errmsg = str(e) @@ -253,14 +266,20 @@ def testDisk(user, disksize, machine=None): def testName(user, name, machine=None): if name is None: return None + name = name.lower() if machine is not None and name == machine.name: return None if not Machine.select_by(name=name): if not validMachineName(name): - raise InvalidInput('name', name, 'You must provide a machine name. Max 22 chars, alnum plus \'-\' and \'_\'.') + raise InvalidInput('name', name, 'You must provide a machine name. Max 63 chars, alnum plus \'-\', does not begin or end with \'-\'.') return name raise InvalidInput('name', name, "Name is already taken.") +def testDescription(user, description, machine=None): + if description is None or description.strip() == '': + return None + return description.strip() + def testHostname(user, hostname, machine): for nic in machine.nics: if hostname == nic.hostname: