keep help page at a readable width

[invirt/packages/invirt-web.git] / code / validation.py

diff --git a/code/validation.py b/code/validation.py
index 3f05017..97a8819 100644 (file)
--- a/code/validation.py
+++ b/code/validation.py
@@ -4,7 +4,7 @@ import cache_acls
 import getafsgroups
 import re
 import string
 import getafsgroups
 import re
 import string

-from sipb_xen_database import Machine, NIC
+from sipb_xen_database import Machine, NIC, Type

 from webcommon import InvalidInput, g
 
 MAX_MEMORY_TOTAL = 512
 from webcommon import InvalidInput, g
 
 MAX_MEMORY_TOTAL = 512

@@ -18,7 +18,7 @@ MAX_VMS_ACTIVE = 4
 
 def getMachinesByOwner(user, machine=None):
     """Return the machines owned by the same as a machine.
 
 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 the machine is None, return the machines owned by the same
     user.
     """

@@ -31,7 +31,7 @@ def getMachinesByOwner(user, machine=None):
 def maxMemory(user, machine=None, on=True):
     """Return the maximum memory for a machine or a user.
 
 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 
+    If machine is None, return the memory available for a new

     machine.  Else, return the maximum that machine can have.
 
     on is whether the machine should be turned on.  If false, the max
     machine.  Else, return the maximum that machine can have.
 
     on is whether the machine should be turned on.  If false, the max

@@ -49,6 +49,11 @@ def maxMemory(user, machine=None, on=True):
     return min(MAX_MEMORY_SINGLE, MAX_MEMORY_TOTAL-mem_usage)
 
 def maxDisk(user, machine=None):
     return min(MAX_MEMORY_SINGLE, MAX_MEMORY_TOTAL-mem_usage)
 
 def maxDisk(user, machine=None):

+    """Return the maximum disk that a machine can reach.
+
+    If machine is None, the maximum disk for a new machine. Otherwise,
+    return the maximum that a given machine can be changed to.
+    """

     machines = getMachinesByOwner(user, machine)
     disk_usage = sum([sum([y.size for y in x.disks])
                       for x in machines if x != machine])
     machines = getMachinesByOwner(user, machine)
     disk_usage = sum([sum([y.size for y in x.disks])
                       for x in machines if x != machine])

@@ -101,7 +106,7 @@ def validMemory(user, memory, machine=None, on=True):
         if memory < MIN_MEMORY_SINGLE:
             raise ValueError
     except ValueError:
         if memory < MIN_MEMORY_SINGLE:
             raise ValueError
     except ValueError:

-        raise InvalidInput('memory', memory, 
+        raise InvalidInput('memory', memory,

                            "Minimum %s MiB" % MIN_MEMORY_SINGLE)
     if memory > maxMemory(user, machine, on):
         raise InvalidInput('memory', memory,
                            "Minimum %s MiB" % MIN_MEMORY_SINGLE)
     if memory > maxMemory(user, machine, on):
         raise InvalidInput('memory', memory,

@@ -123,14 +128,22 @@ def validDisk(user, disk, machine=None):
         raise InvalidInput('disk', disk,
                            "Minimum %s GiB" % MIN_DISK_SINGLE)
     return disk
         raise InvalidInput('disk', disk,
                            "Minimum %s GiB" % MIN_DISK_SINGLE)
     return disk

-            
+
+def validVmType(vm_type):
+    if vm_type is None:
+        return None
+    t = Type.get(vm_type)
+    if t is None:
+        raise CodeError("Invalid vm type '%s'"  % vm_type)
+    return t
+

 def testMachineId(user, 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.
     """
     if machine_id is None:
 def testMachineId(user, 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.
     """
     if machine_id is None:

-        raise InvalidInput('machine_id', machine_id, 
+        raise InvalidInput('machine_id', machine_id,

                            "Must specify a machine ID.")
     try:
         machine_id = int(machine_id)
                            "Must specify a machine ID.")
     try:
         machine_id = int(machine_id)

@@ -168,7 +181,7 @@ def testAdmin(user, admin, machine):
         raise InvalidInput('administrator', admin, errmsg)
     #XXX Should we require that user is in the admin group?
     return admin
         raise InvalidInput('administrator', admin, errmsg)
     #XXX Should we require that user is in the admin group?
     return admin

-    
+

 def testOwner(user, owner, machine=None):
     """Determine whether a user can set the owner of a machine to this value.
 
 def testOwner(user, owner, machine=None):
     """Determine whether a user can set the owner of a machine to this value.