quotas.py 8.77 KB
Newer Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
# Copyright 2013 GRNET S.A. All rights reserved.
#
# Redistribution and use in source and binary forms, with or
# without modification, are permitted provided that the following
# conditions are met:
#
#   1. Redistributions of source code must retain the above
#      copyright notice, this list of conditions and the following
#      disclaimer.
#
#   2. Redistributions in binary form must reproduce the above
#      copyright notice, this list of conditions and the following
#      disclaimer in the documentation and/or other materials
#      provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
# The views and conclusions contained in the software and
# documentation are those of the authors and should not be
# interpreted as representing official policies, either expressed
# or implied, of GRNET S.A.

34
35
36
from astakos.im.models import (
    Resource, AstakosUserQuota, AstakosUser,
    Project, ProjectMembership, ProjectResourceGrant, ProjectApplication)
37
import astakos.quotaholder_app.callpoint as qh
38
from astakos.quotaholder_app.exception import QuotaholderError, NoCapacityError
39
from django.db.models import Q
40
41
42


def from_holding(holding):
43
    limit, usage_min, usage_max = holding
44
    body = {'limit':       limit,
45
46
            'usage':       usage_max,
            'pending':     usage_max-usage_min,
47
48
49
50
51
            }
    return body


def limits_only(holding):
52
    limit, usage_min, usage_max = holding
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
    return limit


def transform_data(holdings, func=None):
    if func is None:
        func = from_holding

    quota = {}
    for (holder, source, resource), value in holdings.iteritems():
        holder_quota = quota.get(holder, {})
        source_quota = holder_quota.get(source, {})
        body = func(value)
        source_quota[resource] = body
        holder_quota[source] = source_quota
        quota[holder] = holder_quota
    return quota


71
def get_counters(users, resources=None, sources=None):
72
73
    uuids = [user.uuid for user in users]

74
75
76
    counters = qh.get_quota(holders=uuids,
                            resources=resources,
                            sources=sources)
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
    return counters


def get_users_quotas(users, resources=None, sources=None):
    counters = get_counters(users, resources, sources)
    quotas = transform_data(counters)
    return quotas


def get_users_quotas_and_limits(users, resources=None, sources=None):
    counters = get_counters(users, resources, sources)
    quotas = transform_data(counters)
    limits = transform_data(counters, limits_only)
    return quotas, limits


def get_user_quotas(user, resources=None, sources=None):
    quotas = get_users_quotas([user], resources, sources)
    return quotas[user.uuid]


98
def service_get_quotas(service, users=None):
99
    resources = Resource.objects.filter(service=service)
100
    resource_names = [r.name for r in resources]
101
    counters = qh.get_quota(holders=users, resources=resource_names)
102
103
104
    return transform_data(counters)


105
106
107
108
109
110
111
112
113
114
def _level_quota_dict(quotas):
    lst = []
    for holder, holder_quota in quotas.iteritems():
        for source, source_quota in holder_quota.iteritems():
            for resource, limit in source_quota.iteritems():
                key = (holder, source, resource)
                lst.append((key, limit))
    return lst


115
def set_user_quota(quotas):
116
117
    q = _level_quota_dict(quotas)
    qh.set_quota(q)
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132


def get_default_quota():
    _DEFAULT_QUOTA = {}
    resources = Resource.objects.select_related('service').all()
    for resource in resources:
        capacity = resource.uplimit
        _DEFAULT_QUOTA[resource.full_name()] = capacity

    return _DEFAULT_QUOTA


SYSTEM = 'system'


133
134
135
136
def resolve_pending_serial(serial, accept=True):
    return qh.resolve_pending_commission('astakos', serial, accept)


137
def register_pending_apps(user, quantity, force=False, dry_run=False):
138
    provision = (user.uuid, SYSTEM, 'astakos.pending_app'), quantity
139
140
141
142
143
144
145
146
147
148
149
150
151
152
    name = "DRYRUN" if dry_run else ""
    try:
        s = qh.issue_commission(clientkey='astakos',
                                force=force,
                                name=name,
                                provisions=[provision])
    except NoCapacityError as e:
        limit = e.data['limit']
        return False, limit
    except QuotaholderError:
        return False, None
    accept = not dry_run
    qh.resolve_pending_commission('astakos', s, accept)
    return True, None
153
154


155
156
157
158
159
160
161
162
163
164
165
166
167
168
def initial_quotas(users):
    initial = {}
    default_quotas = get_default_quota()

    for user in users:
        uuid = user.uuid
        source_quota = {SYSTEM: dict(default_quotas)}
        initial[uuid] = source_quota

    objs = AstakosUserQuota.objects.select_related()
    orig_quotas = objs.filter(user__in=users)
    for user_quota in orig_quotas:
        uuid = user_quota.user.uuid
        user_init = initial.get(uuid, {})
169
        source_quota = user_init.get(SYSTEM, {})
170
        resource = user_quota.resource.full_name()
171
172
        source_quota[resource] = user_quota.capacity
        user_init[SYSTEM] = source_quota
173
174
175
176
177
178
179
180
181
        initial[uuid] = user_init

    return initial


def get_grant_source(grant):
    return SYSTEM


182
def astakos_users_quotas(users, initial=None):
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
    if initial is None:
        quotas = initial_quotas(users)
    else:
        quotas = copy.deepcopy(initial)

    ACTUALLY_ACCEPTED = ProjectMembership.ACTUALLY_ACCEPTED
    objs = ProjectMembership.objects.select_related('project', 'person')
    memberships = objs.filter(person__in=users,
                              state__in=ACTUALLY_ACCEPTED,
                              project__state=Project.APPROVED)

    project_ids = set(m.project_id for m in memberships)
    objs = ProjectApplication.objects.select_related('project')
    apps = objs.filter(project__in=project_ids)

    project_dict = {}
    for app in apps:
        project_dict[app.project] = app

    objs = ProjectResourceGrant.objects.select_related()
    grants = objs.filter(project_application__in=apps)

    for membership in memberships:
        uuid = membership.person.uuid
        userquotas = quotas.get(uuid, {})

        application = project_dict[membership.project]

        for grant in grants:
            if grant.project_application_id != application.id:
                continue

            source = get_grant_source(grant)
            source_quotas = userquotas.get(source, {})

            resource = grant.resource.full_name()
            prev = source_quotas.get(resource, 0)
            new = prev + grant.member_capacity
            source_quotas[resource] = new
            userquotas[source] = source_quotas
        quotas[uuid] = userquotas

    return quotas


228
229
def astakos_user_quotas(user):
    quotas = astakos_users_quotas([user])
230
231
232
233
234
235
    try:
        return quotas[user.uuid]
    except KeyError:
        raise ValueError("could not compute quotas")


236
237
238
def list_user_quotas(users):
    qh_quotas, qh_limits = get_users_quotas_and_limits(users)
    astakos_initial = initial_quotas(users)
239
    astakos_quotas = astakos_users_quotas(users)
240
241
242
243
244
245
246
247
248

    diff_quotas = {}
    for holder, local in astakos_quotas.iteritems():
        registered = qh_limits.get(holder, None)
        if local != registered:
            diff_quotas[holder] = dict(local)

    return (qh_limits, qh_quotas,
            astakos_initial, diff_quotas)
249
250
251


def qh_add_resource_limit(resource, diff):
252
253
254
255
256
257
    objs = AstakosUser.forupdate.filter(Q(email_verified=True) &
                                        ~Q(policy=resource))
    users = objs.select_for_update()
    uuids = [u.uuid for u in users]
    qh.add_resource_limit(holders=uuids, sources=[SYSTEM],
                          resources=[resource.name], diff=diff)
258
259
260
261
262
263


def qh_sync_new_resource(resource, limit):
    users = AstakosUser.forupdate.filter(
        email_verified=True).select_for_update()

264
    resource_name = resource.name
265
266
267
    data = []
    for user in users:
        uuid = user.uuid
268
        key = uuid, SYSTEM, resource_name
269
270
271
        data.append((key, limit))

    qh.set_quota(data)
272
273
274
275


def qh_sync_users(user_ids):
    users = AstakosUser.forupdate.filter(id__in=user_ids).select_for_update()
276
    astakos_quotas = astakos_users_quotas(list(users))
277
278
279
280
281
    set_user_quota(astakos_quotas)


def qh_sync_user(user_id):
    qh_sync_users([user_id])