Synnefo

# Copyright 2011, 2012, 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.

import logging

from datetime import datetime

from dateutil.relativedelta import relativedelta

from django.utils.translation import ugettext as _

from django.core.mail import send_mail, get_connection

from django.core.urlresolvers import reverse

from django.contrib.auth import login as auth_login, logout as auth_logout

from django.db.models import Q

from synnefo_branding.utils import render_to_string

from synnefo.lib import join_urls

from astakos.im.models import AstakosUser, Invitation, ProjectMembership, \

    ProjectApplication, Project, new_chain, Resource, ProjectLock, \

    create_project, ProjectResourceQuota, ProjectResourceGrant

from astakos.im import quotas

from astakos.im import project_notif

from astakos.im import settings

import astakos.im.messages as astakos_messages

logger = logging.getLogger(__name__)

def login(request, user):

    auth_login(request, user)

    from astakos.im.models import SessionCatalog

    SessionCatalog(

        session_key=request.session.session_key,

        user=user

    ).save()

    logger.info('%s logged in.', user.log_display)

def logout(request, *args, **kwargs):

    user = request.user

    auth_logout(request, *args, **kwargs)

    user.delete_online_access_tokens()

    logger.info('%s logged out.', user.log_display)

def send_verification(user, template_name='im/activation_email.txt'):

    """

    Send email to user to verify his/her email and activate his/her account.

    """

    url = join_urls(settings.BASE_HOST,

                    user.get_activation_url(nxt=reverse('index')))

    message = render_to_string(template_name, {

                               'user': user,

                               'url': url,

                               'baseurl': settings.BASE_URL,

                               'site_name': settings.SITENAME,

                               'support': settings.CONTACT_EMAIL})

    sender = settings.SERVER_EMAIL

    send_mail(_(astakos_messages.VERIFICATION_EMAIL_SUBJECT), message, sender,

              [user.email],

              connection=get_connection())

    logger.info("Sent user verirfication email: %s", user.log_display)

def _send_admin_notification(template_name,

                             context=None,

                             user=None,

                             msg="",

                             subject='alpha2 testing notification',):

    """

    Send notification email to settings.HELPDESK + settings.MANAGERS +

    settings.ADMINS.

    """

    if context is None:

        context = {}

    if not 'user' in context:

        context['user'] = user

    message = render_to_string(template_name, context)

    sender = settings.SERVER_EMAIL

    recipient_list = [e[1] for e in settings.HELPDESK +

                      settings.MANAGERS + settings.ADMINS]

    send_mail(subject, message, sender, recipient_list,

              connection=get_connection())

    if user:

        msg = 'Sent admin notification (%s) for user %s' % (msg,

                                                            user.log_display)

    else:

        msg = 'Sent admin notification (%s)' % msg

    logger.log(settings.LOGGING_LEVEL, msg)

def send_account_pending_moderation_notification(

        user,

        template_name='im/account_pending_moderation_notification.txt'):

    """

    Notify admins that a new user has verified his email address and moderation

    step is required to activate his account.

    """

    subject = (_(astakos_messages.ACCOUNT_CREATION_SUBJECT) %

               {'user': user.email})

    return _send_admin_notification(template_name, {}, subject=subject,

                                    user=user, msg="account creation")

def send_account_activated_notification(

        user,

        template_name='im/account_activated_notification.txt'):

    """

    Send email to settings.HELPDESK + settings.MANAGERES + settings.ADMINS

    lists to notify that a new account has been accepted and activated.

    """

    message = render_to_string(

        template_name,

        {'user': user}

    )

    sender = settings.SERVER_EMAIL

    recipient_list = [e[1] for e in settings.HELPDESK +

                      settings.MANAGERS + settings.ADMINS]

    send_mail(_(astakos_messages.HELPDESK_NOTIFICATION_EMAIL_SUBJECT) %

              {'user': user.email},

              message, sender, recipient_list, connection=get_connection())

    msg = 'Sent helpdesk admin notification for %s'

    logger.log(settings.LOGGING_LEVEL, msg, user.email)

def send_invitation(invitation, template_name='im/invitation.txt'):

    """

    Send invitation email.

    """

    subject = _(astakos_messages.INVITATION_EMAIL_SUBJECT)

    url = '%s?code=%d' % (join_urls(settings.BASE_HOST,

                                    reverse('index')), invitation.code)

    message = render_to_string(template_name, {

                               'invitation': invitation,

                               'url': url,

                               'baseurl': settings.BASE_URL,

                               'site_name': settings.SITENAME,

                               'support': settings.CONTACT_EMAIL})

    sender = settings.SERVER_EMAIL

    send_mail(subject, message, sender, [invitation.username],

              connection=get_connection())

    msg = 'Sent invitation %s'

    logger.log(settings.LOGGING_LEVEL, msg, invitation)

    inviter_invitations = invitation.inviter.invitations

    invitation.inviter.invitations = max(0, inviter_invitations - 1)

    invitation.inviter.save()

def send_greeting(user, email_template_name='im/welcome_email.txt'):

    """

    Send welcome email to an accepted/activated user.

    Raises SMTPException, socket.error

    """

    subject = _(astakos_messages.GREETING_EMAIL_SUBJECT)

    message = render_to_string(email_template_name, {

                               'user': user,

                               'url': join_urls(settings.BASE_HOST,

                                                reverse('index')),

                               'baseurl': settings.BASE_URL,

                               'site_name': settings.SITENAME,

                               'support': settings.CONTACT_EMAIL})

    sender = settings.SERVER_EMAIL

    send_mail(subject, message, sender, [user.email],

              connection=get_connection())

    msg = 'Sent greeting %s'

    logger.log(settings.LOGGING_LEVEL, msg, user.log_display)

def send_feedback(msg, data, user, email_template_name='im/feedback_mail.txt'):

    subject = _(astakos_messages.FEEDBACK_EMAIL_SUBJECT)

    from_email = settings.SERVER_EMAIL

    recipient_list = [e[1] for e in settings.HELPDESK]

    content = render_to_string(email_template_name, {

        'message': msg,

        'data': data,

        'user': user})

    send_mail(subject, content, from_email, recipient_list,

              connection=get_connection())

    msg = 'Sent feedback from %s'

    logger.log(settings.LOGGING_LEVEL, msg, user.log_display)

def send_change_email(ec, request,

                      email_template_name=

                      'registration/email_change_email.txt'):

    url = ec.get_url()

    url = request.build_absolute_uri(url)

    c = {'url': url,

         'site_name': settings.SITENAME,

         'support': settings.CONTACT_EMAIL,

         'ec': ec}

    message = render_to_string(email_template_name, c)

    from_email = settings.SERVER_EMAIL

    send_mail(_(astakos_messages.EMAIL_CHANGE_EMAIL_SUBJECT), message,

              from_email,

              [ec.new_email_address], connection=get_connection())

    msg = 'Sent change email for %s'

    logger.log(settings.LOGGING_LEVEL, msg, ec.user.log_display)

def invite(inviter, email, realname):

    inv = Invitation(inviter=inviter, username=email, realname=realname)

    inv.save()

    send_invitation(inv)

    inviter.invitations = max(0, inviter.invitations - 1)

    inviter.save()

### PROJECT FUNCTIONS ###

class ProjectError(Exception):

    pass

class ProjectNotFound(ProjectError):

    pass

class ProjectForbidden(ProjectError):

    pass

class ProjectBadRequest(ProjectError):

    pass

class ProjectConflict(ProjectError):

    pass

AUTO_ACCEPT_POLICY = 1

MODERATED_POLICY = 2

CLOSED_POLICY = 3

POLICIES = [AUTO_ACCEPT_POLICY, MODERATED_POLICY, CLOSED_POLICY]

def get_related_project_id(application_id):

    try:

        app = ProjectApplication.objects.get(id=application_id)

        return app.chain_id

    except ProjectApplication.DoesNotExist:

        return None

def get_project_by_id(project_id):

    try:

        return Project.objects.select_related(

            "application", "application__owner",

            "application__applicant").get(id=project_id)

    except Project.DoesNotExist:

        m = _(astakos_messages.UNKNOWN_PROJECT_ID) % project_id

        raise ProjectNotFound(m)

def get_project_by_uuid(uuid):

    try:

        return Project.objects.get(uuid=uuid)

    except Project.DoesNotExist:

        m = _(astakos_messages.UNKNOWN_PROJECT_ID) % uuid

        raise ProjectNotFound(m)

def get_project_for_update(project_id):

    try:

        try:

            project_id = int(project_id)

            return Project.objects.select_for_update().get(id=project_id)

        except ValueError:

            return Project.objects.select_for_update().get(uuid=project_id)

    except Project.DoesNotExist:

        m = _(astakos_messages.UNKNOWN_PROJECT_ID) % project_id

        raise ProjectNotFound(m)

def get_project_of_application_for_update(app_id):

    app = get_application(app_id)

    return get_project_for_update(app.chain_id)

def get_project_lock():

    ProjectLock.objects.select_for_update().get(pk=1)

def get_application(application_id):

    try:

        return ProjectApplication.objects.get(id=application_id)

    except ProjectApplication.DoesNotExist:

        m = _(astakos_messages.UNKNOWN_PROJECT_APPLICATION_ID) % application_id

        raise ProjectNotFound(m)

def get_project_of_membership_for_update(memb_id):

    m = get_membership_by_id(memb_id)

    return get_project_for_update(m.project_id)

def get_user_by_uuid(uuid):

    try:

        return AstakosUser.objects.get(uuid=uuid)

    except AstakosUser.DoesNotExist:

        m = _(astakos_messages.UNKNOWN_USER_ID) % uuid

        raise ProjectNotFound(m)

def get_membership(project_id, user_id):

    try:

        objs = ProjectMembership.objects.select_related('project', 'person')

        return objs.get(project__id=project_id, person__id=user_id)

    except ProjectMembership.DoesNotExist:

        m = _(astakos_messages.NOT_MEMBERSHIP_REQUEST)

        raise ProjectNotFound(m)

def get_membership_by_id(memb_id):

    try:

        objs = ProjectMembership.objects.select_related('project', 'person')

        return objs.get(id=memb_id)

    except ProjectMembership.DoesNotExist:

        m = _(astakos_messages.NOT_MEMBERSHIP_REQUEST)

        raise ProjectNotFound(m)

ADMIN_LEVEL = 0

OWNER_LEVEL = 1

APPLICANT_LEVEL = 1

ANY_LEVEL = 2

def is_admin(user):

    return not user or user.is_project_admin()

def _failure(silent=False):

    if silent:

        return False

    m = _(astakos_messages.NOT_ALLOWED)

    raise ProjectForbidden(m)

def membership_check_allowed(membership, request_user,

                             level=OWNER_LEVEL, silent=False):

    r = project_check_allowed(

        membership.project, request_user, level, silent=True)

    if r or membership.person == request_user:

        return True

    return _failure(silent)

def project_check_allowed(project, request_user,

                          level=OWNER_LEVEL, silent=False):

    if is_admin(request_user):

        return True

    if level <= ADMIN_LEVEL:

        return _failure(silent)

    if project.owner == request_user:

        return True

    if level <= OWNER_LEVEL:

        return _failure(silent)

    if project.state == Project.NORMAL and not project.private \

            or bool(project.projectmembership_set.any_accepted().

                    filter(person=request_user)):

            return True

    return _failure(silent)

def app_check_allowed(application, request_user,

                      level=OWNER_LEVEL, silent=False):

    if is_admin(request_user):

        return True

    if level <= ADMIN_LEVEL:

        return _failure(silent)

    if application.applicant == request_user:

        return True

    return _failure(silent)

def checkAlive(project):

    if not project.is_alive:

        m = _(astakos_messages.NOT_ALIVE_PROJECT) % project.uuid

        raise ProjectConflict(m)

def accept_membership_project_checks(project, request_user):

    project_check_allowed(project, request_user)

    checkAlive(project)

    join_policy = project.member_join_policy

    if join_policy == CLOSED_POLICY:

        m = _(astakos_messages.MEMBER_JOIN_POLICY_CLOSED)

        raise ProjectConflict(m)

    if project.violates_members_limit(adding=1):

        m = _(astakos_messages.MEMBER_NUMBER_LIMIT_REACHED)

        raise ProjectConflict(m)

def accept_membership_checks(membership, request_user):

    if not membership.check_action("accept"):

        m = _(astakos_messages.NOT_MEMBERSHIP_REQUEST)

        raise ProjectConflict(m)

    project = membership.project

    accept_membership_project_checks(project, request_user)

def accept_membership(memb_id, request_user=None, reason=None):

    project = get_project_of_membership_for_update(memb_id)

    membership = get_membership_by_id(memb_id)

    accept_membership_checks(membership, request_user)

    user = membership.person

    membership.perform_action("accept", actor=request_user, reason=reason)

    quotas.qh_sync_membership(membership)

    logger.info("User %s has been accepted in %s." %

                (user.log_display, project))

    project_notif.membership_change_notify(project, user, 'accepted')

    return membership

def reject_membership_checks(membership, request_user):

    if not membership.check_action("reject"):

        m = _(astakos_messages.NOT_MEMBERSHIP_REQUEST)

        raise ProjectConflict(m)

    project = membership.project

    project_check_allowed(project, request_user)

    checkAlive(project)

def reject_membership(memb_id, request_user=None, reason=None):

    project = get_project_of_membership_for_update(memb_id)

    membership = get_membership_by_id(memb_id)

    reject_membership_checks(membership, request_user)

    user = membership.person

    membership.perform_action("reject", actor=request_user, reason=reason)

    logger.info("Request of user %s for %s has been rejected." %

                (user.log_display, project))

    project_notif.membership_change_notify(project, user, 'rejected')

    return membership

def cancel_membership_checks(membership, request_user):

    if not membership.check_action("cancel"):

        m = _(astakos_messages.NOT_MEMBERSHIP_REQUEST)

        raise ProjectConflict(m)

    membership_check_allowed(membership, request_user, level=ADMIN_LEVEL)

    project = membership.project

    checkAlive(project)

def cancel_membership(memb_id, request_user, reason=None):

    project = get_project_of_membership_for_update(memb_id)

    membership = get_membership_by_id(memb_id)

    cancel_membership_checks(membership, request_user)

    membership.perform_action("cancel", actor=request_user, reason=reason)

    logger.info("Request of user %s for %s has been cancelled." %

                (membership.person.log_display, project))

def remove_membership_checks(membership, request_user=None):

    if not membership.check_action("remove"):

        m = _(astakos_messages.NOT_ACCEPTED_MEMBERSHIP)

        raise ProjectConflict(m)

    project = membership.project

    project_check_allowed(project, request_user)

    checkAlive(project)

    leave_policy = project.member_leave_policy

    if leave_policy == CLOSED_POLICY:

        m = _(astakos_messages.MEMBER_LEAVE_POLICY_CLOSED)

        raise ProjectConflict(m)

def remove_membership(memb_id, request_user=None, reason=None):

    project = get_project_of_membership_for_update(memb_id)

    membership = get_membership_by_id(memb_id)

    remove_membership_checks(membership, request_user)

    user = membership.person

    membership.perform_action("remove", actor=request_user, reason=reason)

    quotas.qh_sync_membership(membership)

    logger.info("User %s has been removed from %s." %

                (user.log_display, project))

    project_notif.membership_change_notify(project, user, 'removed')

    return membership

def enroll_member_by_email(project_id, email, request_user=None, reason=None):

    try:

        user = AstakosUser.objects.accepted().get(email=email)

        return enroll_member(project_id, user, request_user, reason=reason)

    except AstakosUser.DoesNotExist:

        raise ProjectConflict(astakos_messages.UNKNOWN_USERS % email)

def enroll_member(project_id, user, request_user=None, reason=None):

    try:

        project = get_project_for_update(project_id)

    except ProjectNotFound as e:

        raise ProjectConflict(e.message)

    accept_membership_project_checks(project, request_user)

    try:

        membership = get_membership(project.id, user.id)

        if not membership.check_action("enroll"):

            m = _(astakos_messages.MEMBERSHIP_ACCEPTED)

            raise ProjectConflict(m)

        membership.perform_action("enroll", actor=request_user, reason=reason)

    except ProjectNotFound:

        membership = new_membership(project, user, actor=request_user,

                                    enroll=True)

    quotas.qh_sync_membership(membership)

    logger.info("User %s has been enrolled in %s." %

                (membership.person.log_display, project))

    project_notif.membership_enroll_notify(project, membership.person)

    return membership

def leave_project_checks(membership, request_user):

    if not membership.check_action("leave"):

        m = _(astakos_messages.NOT_ACCEPTED_MEMBERSHIP)

        raise ProjectConflict(m)

    membership_check_allowed(membership, request_user, level=ADMIN_LEVEL)

    project = membership.project

    checkAlive(project)

    leave_policy = project.member_leave_policy

    if leave_policy == CLOSED_POLICY:

        m = _(astakos_messages.MEMBER_LEAVE_POLICY_CLOSED)

        raise ProjectConflict(m)

def can_cancel_join_request(project, user):

    m = user.get_membership(project)

    if m is None:

        return False

    return m.state in [m.REQUESTED]

def can_leave_request(project, user):

    m = user.get_membership(project)

    if m is None:

        return False

    try:

        leave_project_checks(m, user)

    except ProjectError:

        return False

    return True

def leave_project(memb_id, request_user, reason=None):

    project = get_project_of_membership_for_update(memb_id)

    membership = get_membership_by_id(memb_id)

    leave_project_checks(membership, request_user)

    auto_accepted = False

    leave_policy = project.member_leave_policy

    if leave_policy == AUTO_ACCEPT_POLICY:

        membership.perform_action("remove", actor=request_user, reason=reason)

        quotas.qh_sync_membership(membership)

        logger.info("User %s has left %s." %

                    (request_user.log_display, project))

        auto_accepted = True

    else:

        membership.perform_action("leave_request", actor=request_user,

                                  reason=reason)

        logger.info("User %s requested to leave %s." %

                    (request_user.log_display, project))

        project_notif.membership_request_notify(

            project, membership.person, "leave")

    return auto_accepted

def join_project_checks(project):

    checkAlive(project)

    join_policy = project.member_join_policy

    if join_policy == CLOSED_POLICY:

        m = _(astakos_messages.MEMBER_JOIN_POLICY_CLOSED)

        raise ProjectConflict(m)

Nothing = type('Nothing', (), {})

def can_join_request(project, user, membership=Nothing):

    try:

        join_project_checks(project)

    except ProjectError:

        return False

    m = (membership if membership is not Nothing

         else user.get_membership(project))

    if not m:

        return True

    return m.check_action("join")

def new_membership(project, user, actor=None, reason=None, enroll=False):

    state = (ProjectMembership.ACCEPTED if enroll

             else ProjectMembership.REQUESTED)

    m = ProjectMembership.objects.create(

        project=project, person=user, state=state, initialized=enroll)

    m._log_create(None, state, actor=actor, reason=reason)

    return m

def join_project(project_id, request_user, reason=None):

    project = get_project_for_update(project_id)

    join_project_checks(project)

    try:

        membership = get_membership(project.id, request_user.id)

        if not membership.check_action("join"):

            msg = _(astakos_messages.MEMBERSHIP_ASSOCIATED)

            raise ProjectConflict(msg)

        membership.perform_action("join", actor=request_user, reason=reason)

    except ProjectNotFound:

        membership = new_membership(project, request_user, actor=request_user,

                                    reason=reason)

    join_policy = project.member_join_policy

    if (join_policy == AUTO_ACCEPT_POLICY and (

            not project.violates_members_limit(adding=1))):

        membership.perform_action("accept", actor=request_user, reason=reason)

        quotas.qh_sync_membership(membership)

        logger.info("User %s joined %s." %

                    (request_user.log_display, project))

    else:

        project_notif.membership_request_notify(

            project, membership.person, "join")

        logger.info("User %s requested to join %s." %

                    (request_user.log_display, project))

    return membership

MEMBERSHIP_ACTION_CHECKS = {

    "leave":  leave_project_checks,

    "cancel": cancel_membership_checks,

    "accept": accept_membership_checks,

    "reject": reject_membership_checks,

    "remove": remove_membership_checks,

}

def membership_allowed_actions(membership, request_user):

    allowed = []

    for action, check in MEMBERSHIP_ACTION_CHECKS.iteritems():

        try:

            check(membership, request_user)

            allowed.append(action)

        except ProjectError:

            pass

    return allowed

def make_base_project(username):

    chain = new_chain()

    proj = create_project(

        id=chain.chain,

        last_application=None,

        owner=None,

        realname="tmp",

        homepage="",

        description=("base project for user " + username),

        end_date=(datetime.now() + relativedelta(years=100)),

        member_join_policy=CLOSED_POLICY,

        member_leave_policy=CLOSED_POLICY,

        limit_on_members_number=1,

        private=True,

        is_base=True)

    proj.realname = "base:" + proj.uuid

    proj.save()

    # No quota are set; they will be filled in upon user acceptance

    return proj

def enable_base_project(user):

    project = user.base_project

    _fill_from_skeleton(project)

    project.activate()

    new_membership(project, user, enroll=True)

    quotas.qh_sync_project(project)

MODIFY_KEYS_MAIN = ["owner", "realname", "homepage", "description"]

MODIFY_KEYS_EXTRA = ["end_date", "member_join_policy", "member_leave_policy",

                     "limit_on_members_number", "private"]

MODIFY_KEYS = MODIFY_KEYS_MAIN + MODIFY_KEYS_EXTRA

def modifies_main_fields(request):

    return set(request.keys()).intersection(MODIFY_KEYS_MAIN)

def modify_project(project_id, request):

    project = get_project_for_update(project_id)

    if project.state not in Project.INITIALIZED_STATES:

        m = _(astakos_messages.UNINITIALIZED_NO_MODIFY) % project.uuid

        raise ProjectConflict(m)

    if project.is_base:

        main_fields = modifies_main_fields(request)

        if main_fields:

            m = (_(astakos_messages.BASE_NO_MODIFY_FIELDS)

                 % ", ".join(map(str, main_fields)))

            raise ProjectBadRequest(m)

    new_name = request.get("realname")

    if new_name is not None and project.is_alive:

        check_conflicting_projects(project, new_name)

        project.realname = new_name

        project.name = new_name

        project.save()

    _modify_projects(Project.objects.filter(id=project.id), request)

def modify_projects_in_bulk(flt, request):

    main_fields = modifies_main_fields(request)

    if main_fields:

        raise ProjectBadRequest("Cannot modify field(s) '%s' in bulk" %

                                ", ".join(map(str, main_fields)))

    projects = Project.objects.initialized(flt).select_for_update()

    _modify_projects(projects, request)

def _modify_projects(projects, request):

    upds = {}

    for key in MODIFY_KEYS:

        value = request.get(key)

        if value is not None:

            upds[key] = value

    projects.update(**upds)

    changed_resources = set()

    pquotas = []

    req_policies = request.get("resources", {})

    req_policies = validate_resource_policies(req_policies, admin=True)

    for project in projects:

        for resource, m_capacity, p_capacity in req_policies:

            changed_resources.add(resource)

            pquotas.append(

                ProjectResourceQuota(

                    project=project,

                    resource=resource,

                    member_capacity=m_capacity,

                    project_capacity=p_capacity))

    ProjectResourceQuota.objects.\

        filter(project__in=projects, resource__in=changed_resources).delete()

    ProjectResourceQuota.objects.bulk_create(pquotas)

    quotas.qh_sync_projects(projects)

def submit_application(owner=None,

                       name=None,

                       project_id=None,

                       homepage=None,

                       description=None,

                       start_date=None,

                       end_date=None,

                       member_join_policy=None,

                       member_leave_policy=None,

                       limit_on_members_number=None,

                       private=False,

                       comments=None,

                       resources=None,

                       request_user=None):

    project = None

    if project_id is not None:

        project = get_project_for_update(project_id)

        project_check_allowed(project, request_user, level=APPLICANT_LEVEL)

        if project.state not in Project.INITIALIZED_STATES:

            raise ProjectConflict("Cannot modify an uninitialized project.")