root / snf-astakos-app / astakos / im / management / commands / _common.py @ c25f5ed0
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# Copyright 2012, 2013 GRNET S.A. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or
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# without modification, are permitted provided that the following
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# conditions are met:
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#
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# 1. Redistributions of source code must retain the above
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# copyright notice, this list of conditions and the following
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# disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials
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# provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# The views and conclusions contained in the software and
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# documentation are those of the authors and should not be
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# interpreted as representing official policies, either expressed
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# or implied, of GRNET S.A.
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from datetime import datetime |
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import uuid |
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from django.core.validators import validate_email |
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from django.utils.timesince import timesince, timeuntil |
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from django.contrib.auth.models import Permission |
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from django.contrib.contenttypes.models import ContentType |
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from django.core.exceptions import FieldError |
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from django.core.management import CommandError |
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from synnefo.util import units |
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from synnefo.lib.ordereddict import OrderedDict |
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from astakos.im.models import AstakosUser |
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from astakos.im.register import get_resources |
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import sys |
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DEFAULT_CONTENT_TYPE = None
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def read_from_file(f_name): |
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if f_name == '-': |
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return sys.stdin.read()
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else:
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try:
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with open(f_name) as file_desc: |
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return file_desc.read()
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except IOError as e: |
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raise CommandError(e)
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def get_user(email_or_id, **kwargs): |
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try:
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if email_or_id.isdigit():
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return AstakosUser.objects.get(id=int(email_or_id)) |
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else:
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return AstakosUser.objects.get(email__iexact=email_or_id, **kwargs)
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except AstakosUser.DoesNotExist, AstakosUser.MultipleObjectsReturned:
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return None |
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def get_astakosuser_content_type(): |
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try:
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return ContentType.objects.get(app_label='im', |
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model='astakosuser')
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except:
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return DEFAULT_CONTENT_TYPE
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def add_user_permission(user, pname): |
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content_type = get_astakosuser_content_type() |
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if user.has_perm(pname):
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return 0, None |
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p, created = Permission.objects.get_or_create(codename=pname, |
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name=pname.capitalize(), |
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content_type=content_type) |
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user.user_permissions.add(p) |
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return 1, created |
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def add_group_permission(group, pname): |
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content_type = get_astakosuser_content_type() |
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if pname in [p.codename for p in group.permissions.all()]: |
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return 0, None |
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content_type = ContentType.objects.get(app_label='im',
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model='astakosuser')
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p, created = Permission.objects.get_or_create(codename=pname, |
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name=pname.capitalize(), |
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content_type=content_type) |
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group.permissions.add(p) |
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return 1, created |
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def remove_user_permission(user, pname): |
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content_type = get_astakosuser_content_type() |
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if user.has_perm(pname):
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return 0 |
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try:
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p = Permission.objects.get(codename=pname, |
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content_type=content_type) |
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user.user_permissions.remove(p) |
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return 1 |
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except Permission.DoesNotExist:
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return -1 |
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def remove_group_permission(group, pname): |
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content_type = get_astakosuser_content_type() |
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if pname not in [p.codename for p in group.permissions.all()]: |
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return 0 |
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try:
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p = Permission.objects.get(codename=pname, |
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content_type=content_type) |
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group.permissions.remove(p) |
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return 1 |
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except Permission.DoesNotExist:
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return -1 |
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def is_uuid(s): |
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if s is None: |
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return False |
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try:
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uuid.UUID(s) |
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except ValueError: |
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return False |
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else:
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return True |
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def is_email(s): |
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if s is None: |
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return False |
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try:
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validate_email(s) |
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except:
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return False |
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else:
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return True |
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style_options = ', '.join(units.STYLES)
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def check_style(style): |
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if style not in units.STYLES: |
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m = "Invalid unit style. Valid ones are %s." % style_options
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raise CommandError(m)
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class ResourceDict(object): |
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_object = None
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@classmethod
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def get(cls): |
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if cls._object is None: |
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cls._object = get_resources() |
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return cls._object
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def show_resource_value(number, resource, style): |
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resources = ResourceDict.get() |
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resource_dict = resources.get(resource) |
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unit = resource_dict.get('unit') if resource_dict else None |
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return units.show(number, unit, style)
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def show_quotas(qh_quotas, astakos_initial, info=None, style=None): |
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labels = ('source', 'resource', 'base quota', 'total quota', 'usage') |
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if info is not None: |
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labels = ('uuid', 'email') + labels |
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print_data = [] |
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for holder, holder_quotas in qh_quotas.iteritems(): |
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h_initial = astakos_initial.get(holder) |
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if info is not None: |
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email = info.get(holder, "")
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for source, source_quotas in holder_quotas.iteritems(): |
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s_initial = h_initial.get(source) if h_initial else None |
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for resource, values in source_quotas.iteritems(): |
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initial = s_initial.get(resource) if s_initial else None |
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initial = show_resource_value(initial, resource, style) |
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limit = show_resource_value(values['limit'], resource, style)
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usage = show_resource_value(values['usage'], resource, style)
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fields = (source, resource, initial, limit, usage) |
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if info is not None: |
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fields = (holder, email) + fields |
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print_data.append(fields) |
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return print_data, labels
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