import sha
import hmac
import datetime
+import StringIO
-sys.stderr = sys.stdout
+sys.stderr = StringIO.StringIO()
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):
+ super(InvalidInput, self).__init__(expl)
+ self.err_field = err_field
+ self.err_value = err_value
class CodeError(MyException):
"""Exception for internal errors or bad faith input."""
return True
return machine.owner == user.username
-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"""
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()
if memory < MIN_MEMORY_SINGLE:
raise ValueError
except ValueError:
- raise InvalidInput("Invalid memory amount; must be at least %s MB" %
- MIN_MEMORY_SINGLE)
+ raise InvalidInput('memory', memory,
+ "Minimum %s MB" % MIN_MEMORY_SINGLE)
if memory > maxMemory(user, machine):
- raise InvalidInput("Too much memory requested")
+ 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)
+ raise InvalidInput('name', name)
name = user.username + '_' + 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)
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):
has_vnc=has_vnc,
uptimes=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):
remctl('reboot', machine.name)
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)
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 testOwner(user, owner, machine=None):
+ if owner != user.username:
+ raise InvalidInput('owner', owner,
+ "Invalid")
+ return owner
+
+def testContact(user, contact, machine=None):
+ if contact != user.email:
+ raise InvalidInput('contact', contact,
+ "Invalid")
+ return contact
+
+def testHostname(user, hostname, machine):
+ for nic in machine.nics:
+ if hostname == nic.hostname:
+ return hostname
+ raise InvalidInput('hostname', hostname,
+ "Different from before")
+
+
def modify(user, fields):
"""Handler for modifying attributes of a machine."""
#XXX not written yet
machine = testMachineId(user, fields.getfirst('machine_id'))
+ owner = testOwner(user, fields.getfirst('owner'), machine)
+ contact = testContact(user, fields.getfirst('contact'))
+ hostname = testHostname(user, fields.getfirst('hostname'),
+ machine)
+ ram = fields.getfirst('memory')
+ if ram is not None:
+ ram = validMemory(user, ram, machine)
+ disk = testDisk(user, fields.getfirst('disk'))
+ if disk is not None:
+ disk = validDisk(user, disk, machine)
+
+
def help(user, fields):
"""Handler for help messages."""
simple = fields.getfirst('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):
max_mem=max_mem,
max_disk=max_disk,
fields = fields)
- print Template(file='info.tmpl',
+ return Template(file='info.tmpl',
searchList=[d, global_dict])
mapping = dict(list=listVms,
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.seek(0)
+ e = sys.stderr.read()
+ if e:
+ output = output.replace('<body>', '<body><pre>'+e+'</pre>')
+ print output
except CodeError, err:
- error(operation, u, fields, err)
+ print 'Content-Type: text/html\n'
+ sys.stderr.seek(0)
+ e = sys.stderr.read()
+ print error(operation, u, fields, err, e)
except InvalidInput, err:
- error(operation, u, fields, err)
+ print 'Content-Type: text/html\n'
+ sys.stderr.seek(0)
+ e = sys.stderr.read()
+ print invalidInput(operation, u, fields, err, e)
+ except:
+ print 'Content-Type: text/plain\n'
+ sys.stderr.seek(0)
+ e = sys.stderr.read()
+ print e
+ print '----'
+ raise