X-Git-Url: http://xvm.mit.edu/gitweb/invirt/packages/invirt-web.git/blobdiff_plain/cfed63e6644aa489939f40a1ceff5b41e847aeca..6d821072f645e107e02e661ee937745642dc3588:/code/validation.py?ds=inline

diff --git a/code/validation.py b/code/validation.py
old mode 100644
new mode 100755
index fe6d7c8..d288a69
--- a/code/validation.py
+++ b/code/validation.py
@@ -5,18 +5,13 @@ import getafsgroups
 import re
 import string
 import dns.resolver
-from invirt.database import Machine, NIC, Type, Disk, CDROM, Autoinstall
+from invirt import authz
+from invirt.database import Machine, NIC, Type, Disk, CDROM, Autoinstall, Owner
 from invirt.config import structs as config
-from invirt.common import InvalidInput
+from invirt.common import InvalidInput, CodeError
 
-MAX_MEMORY_TOTAL = 512
-MAX_MEMORY_SINGLE = 256
 MIN_MEMORY_SINGLE = 16
-MAX_DISK_TOTAL = 50
-MAX_DISK_SINGLE = 50
 MIN_DISK_SINGLE = 0.1
-MAX_VMS_TOTAL = 10
-MAX_VMS_ACTIVE = 4
 
 class Validate:
     def __init__(self, username, state, machine_id=None, name=None, description=None, owner=None,
@@ -30,7 +25,7 @@ class Validate:
         if strict:
             if name is None:
                 raise InvalidInput('name', name, "You must provide a machine name.")
-            if description is None:
+            if description is None or description.strip() == '':
                 raise InvalidInput('description', description, "You must provide a description.")
             if memory is None:
                 raise InvalidInput('memory', memory, "You must provide a memory size.")
@@ -44,9 +39,7 @@ class Validate:
         owner = testOwner(username, owner, machine)
         if owner is not None:
             self.owner = owner
-        admin = testAdmin(username, admin, machine)
-        if admin is not None:
-            self.admin = admin
+        self.admin = testAdmin(username, admin, machine)
         contact = testContact(username, contact, machine)
         if contact is not None:
             self.contact = contact
@@ -68,6 +61,8 @@ class Validate:
                 raise CodeError("Invalid cdrom type '%s'" % cdrom)
             self.cdrom = cdrom
         if autoinstall is not None:
+            #raise InvalidInput('autoinstall', 'install',
+            #                   "The autoinstaller has been temporarily disabled")
             self.autoinstall = Autoinstall.query().get(autoinstall)
 
 
@@ -91,15 +86,14 @@ def maxMemory(owner, g, machine=None, on=True):
     memory for the machine to change to, if it is left off, is
     returned.
     """
-    if machine is not None and machine.memory > MAX_MEMORY_SINGLE:
-        # If they've been blessed, let them have it
-        return machine.memory
+    (quota_total, quota_single) = Owner.getMemoryQuotas(machine.owner if machine else owner)
+
     if not on:
-        return MAX_MEMORY_SINGLE
+        return quota_single
     machines = getMachinesByOwner(owner, machine)
     active_machines = [m for m in machines if m.name in g.xmlist_raw]
     mem_usage = sum([x.memory for x in active_machines if x != machine])
-    return min(MAX_MEMORY_SINGLE, MAX_MEMORY_TOTAL-mem_usage)
+    return min(quota_single, quota_total-mem_usage)
 
 def maxDisk(owner, machine=None):
     """Return the maximum disk that a machine can reach.
@@ -107,6 +101,8 @@ def maxDisk(owner, machine=None):
     If machine is None, the maximum disk for a new machine. Otherwise,
     return the maximum that a given machine can be changed to.
     """
+    (quota_total, quota_single) = Owner.getDiskQuotas(machine.owner if machine else owner)
+
     if machine is not None:
         machine_id = machine.machine_id
     else:
@@ -114,14 +110,15 @@ def maxDisk(owner, machine=None):
     disk_usage = Disk.query().filter(Disk.c.machine_id != machine_id).\
                      join('machine').\
                      filter_by(owner=owner).sum(Disk.c.size) or 0
-    return min(MAX_DISK_SINGLE, MAX_DISK_TOTAL-disk_usage/1024.)
+    return min(quota_single, quota_total-disk_usage/1024.)
 
 def cantAddVm(owner, g):
     machines = getMachinesByOwner(owner)
     active_machines = [m for m in machines if m.name in g.xmlist_raw]
-    if machines.count() >= MAX_VMS_TOTAL:
+    (quota_total, quota_active) = Owner.getVMQuotas(owner)
+    if machines.count() >= quota_total:
         return 'You have too many VMs to create a new one.'
-    if len(active_machines) >= MAX_VMS_ACTIVE:
+    if len(active_machines) >= quota_active:
         return ('You already have the maximum number of VMs turned on.  '
                 'To create more, turn one off.')
     return False
@@ -133,7 +130,7 @@ def haveAccess(user, state, machine):
 
 def owns(user, machine):
     """Return whether a user owns a machine"""
-    return user in expandLocker(machine.owner)
+    return user in authz.expandOwner(machine.owner)
 
 def validMachineName(name):
     """Check that name is valid for a machine name"""
@@ -212,43 +209,39 @@ def testMachineId(user, state, machine_id, exists=True):
 def testAdmin(user, admin, machine):
     """Determine whether a user can set the admin of a machine to this value.
 
-    Return the value to set the admin field to (possibly 'system:' +
-    admin).  XXX is modifying this a good idea?
+    Return the value to set the admin field to (possibly 'system:' + admin).
     """
     if admin is None:
         return None
     if machine is not None and admin == machine.administrator:
-        return None
+        return admin
     if admin == user:
         return admin
+    # we do not require that the user be in the admin group;
+    # just that it is a non-empty set
+    if authz.expandAdmin(admin):
+        return admin
     if ':' not in admin:
-        if cache_acls.isUser(admin):
-            return admin
-        admin = 'system:' + admin
-    try:
-        if user in getafsgroups.getAfsGroupMembers(admin, config.authz[0].cell):
-            return admin
-    except getafsgroups.AfsProcessError, e:
-        errmsg = str(e)
-        if errmsg.startswith("pts: User or group doesn't exist"):
-            errmsg = 'The group "%s" does not exist.' % admin
-        raise InvalidInput('administrator', admin, errmsg)
-    #XXX Should we require that user is in the admin group?
-    return admin
+        if authz.expandAdmin('system:' + admin):
+            return 'system:' + admin
+        errmsg = 'No user "%s" or non-empty group "system:%s" found.' % (admin, admin)
+    else:
+        errmsg = 'No non-empty group "%s" found.' % (admin,)
+    raise InvalidInput('administrator', admin, errmsg)
 
 def testOwner(user, owner, machine=None):
     """Determine whether a user can set the owner of a machine to this value.
 
     If machine is None, this is the owner of a new machine.
     """
-    if owner == user:
-        return owner
     if machine is not None and owner in (machine.owner, None):
         return machine.owner
     if owner is None:
         raise InvalidInput('owner', owner, "Owner must be specified")
+    if '@' in owner:
+        raise InvalidInput('owner', owner, "No cross-realm Hesiod lockers allowed")
     try:
-        if user not in cache_acls.expandLocker(owner):
+        if user not in authz.expandOwner(owner):
             raise InvalidInput('owner', owner, 'You do not have access to the '
                                + owner + ' locker')
     except getafsgroups.AfsProcessError, e:
@@ -262,9 +255,6 @@ def testContact(user, contact, machine=None):
         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 is None:
         return None