| 1 | # -*- coding: utf-8 -*- |
| 2 | |
| 3 | import functools |
| 4 | |
| 5 | from MailMan import UserDesc as mailman_userdesc |
| 6 | from MailMan import MailList as mailman_mlist |
| 7 | |
| 8 | from groups import models as groups_models |
| 9 | |
| 10 | |
| 11 | class ListError(Exception): |
| 12 | pass |
| 13 | |
| 14 | |
| 15 | class OperationForbidden(ListError): |
| 16 | pass |
| 17 | |
| 18 | |
| 19 | class InvalidOperation(ListError): |
| 20 | pass |
| 21 | |
| 22 | |
| 23 | def is_mlist_admin(mlist, user): |
| 24 | if user.is_superuser or user in mlist.owner: |
| 25 | return True |
| 26 | if user.memberships.filter(group__dns=self.domain, level=groups_models.Membership.LEVEL_ADMIN).exists(): |
| 27 | return True |
| 28 | return False |
| 29 | |
| 30 | def require_mlist_admin(mlist, user): |
| 31 | if not is_mlist_admin(mlist, user): |
| 32 | raise OperationForbidden() |
| 33 | |
| 34 | |
| 35 | def lock_mlist(fun): |
| 36 | """Lock a mailing list. |
| 37 | |
| 38 | This will: |
| 39 | - Open the list, locking it |
| 40 | - If the function didn't raise an error, save the list |
| 41 | - Unlock the list |
| 42 | """ |
| 43 | @functools.wraps(fun) |
| 44 | def decorated(self, *args, **kwargs): |
| 45 | mlist = self.get_mlist(lock=True) |
| 46 | try: |
| 47 | kwargs.update(mlist=mlist) |
| 48 | result = fun(self, *args, **kwargs) |
| 49 | mlist.Save() |
| 50 | return result |
| 51 | finally: |
| 52 | mlist.Unlock() |
| 53 | |
| 54 | return decorated |
| 55 | |
| 56 | |
| 57 | def with_mlist(fun): |
| 58 | @functools.wraps(fun) |
| 59 | def decorated(self, *args, **kwargs): |
| 60 | mlist = self.get_mlist(lock=False) |
| 61 | kwargs.update(mlist=mlist) |
| 62 | return fun(self, *args, **kwargs) |
| 63 | |
| 64 | return decorated |
| 65 | |
| 66 | |
| 67 | def require_list_admin(fun): |
| 68 | """Ensure the given 'user' is an admin of the 'mlist'.""" |
| 69 | @functools.wraps(fun) |
| 70 | def decorated(*args, **kwargs): |
| 71 | user = kwargs['user'] |
| 72 | mlist = kwargs['mlist'] |
| 73 | require_mlist_admin(mlist, user) |
| 74 | |
| 75 | return fun(*args, **kwargs) |
| 76 | |
| 77 | return decorated |
| 78 | |
| 79 | |
| 80 | class MailingList(object): |
| 81 | |
| 82 | def __init__(self, mbox, domain, *args, **kwargs): |
| 83 | self.domain = domain |
| 84 | self.mbox = mbox |
| 85 | self.address = '%s@%s' % (self.mbox, self.domain) |
| 86 | super(MailingList, self).__init__(*args, **kwargs) |
| 87 | |
| 88 | @property |
| 89 | def group(self): |
| 90 | try: |
| 91 | return groups_models.XGroup.objects.get(dns=self.domain) |
| 92 | except groups_models.XGroup.DoesNotExist: |
| 93 | return None |
| 94 | |
| 95 | # MailMan interactions |
| 96 | # ==================== |
| 97 | |
| 98 | @property |
| 99 | def mailman_name(self): |
| 100 | return '%(domain)s_%(mbox)s' % dict( |
| 101 | domain=self.domain, |
| 102 | mbox=self.mbox, |
| 103 | ) |
| 104 | |
| 105 | def get_mlist(self, lock=False): |
| 106 | """The mailman-style MailList object.""" |
| 107 | return mailman_mlist.MailList(self.mailman_name, lock=lock) |
| 108 | |
| 109 | def get_userdesc(self, user): |
| 110 | return mailman_userdesc.UserDesc( |
| 111 | user.email, |
| 112 | user.get_full_name(), |
| 113 | ) |
| 114 | |
| 115 | # Subscribing |
| 116 | # =========== |
| 117 | |
| 118 | @lock_mlist |
| 119 | def subscribe(self, user, mlist): |
| 120 | userdesc = self.get_userdesc(user) |
| 121 | |
| 122 | subscribed = True |
| 123 | if mlist.subscribe_policy in (0, 1): |
| 124 | # Open or user-confirmed subscription |
| 125 | mlist.ApprovedAddMember(userdesc) |
| 126 | elif userdesc.address in mlist.owner: |
| 127 | mlist.ApprovedAddMember(userdesc) |
| 128 | else: |
| 129 | # Admin-confirmed subscription |
| 130 | mlist.HoldSubscription(userdesc.address, userdesc.fullname, |
| 131 | password='', digest='', lang='') |
| 132 | subscribed = False |
| 133 | |
| 134 | return subscribed |
| 135 | |
| 136 | @lock_mlist |
| 137 | @require_mlist_admin |
| 138 | def subscribe_user(self, user, target, mlist): |
| 139 | userdesc = self.get_userdesc(target) |
| 140 | mlist.ApprovedAddMember(userdesc) |
| 141 | |
| 142 | @lock_mlist |
| 143 | def unsubscribe(self, user, mlist): |
| 144 | userdesc = self.get_userdesc(user) |
| 145 | |
| 146 | mlist.ApprovedDeleteMember(userdesc.address) |
| 147 | |
| 148 | @lock_mlist |
| 149 | @require_mlist_admin |
| 150 | def unsubscribe_user(self, user, target, mlist): |
| 151 | userdesc = self.get_userdesc(target) |
| 152 | mlist.ApprovedDeleteMember(userdesc) |
| 153 | |
| 154 | @lock_mlist |
| 155 | @require_mlist_admin |
| 156 | def mass_subscribe(self, user, users, mlist): |
| 157 | for target in users: |
| 158 | userdesc = self.get_userdesc(target) |
| 159 | if userdesc.address not in mlist.members: |
| 160 | mlist.ApprovedAddMember(userdesc) |
| 161 | yield added |
| 162 | |
| 163 | @lock_mlist |
| 164 | @require_mlist_admin |
| 165 | def mass_unsubscribe(self, user, users, mlist): |
| 166 | for target in users: |
| 167 | userdesc = self.get_userdesc(target) |
| 168 | if userdesc.address in mlist.members: |
| 169 | mlist.ApprovedDeleteMember(userdesc) |
| 170 | yield target |
| 171 | |
| 172 | @lock_mlist |
| 173 | @require_mlist_admin |
| 174 | def add_owner(self, user, target, mlist): |
| 175 | userdesc = self.get_userdesc(target) |
| 176 | mlist.owner.append(userdesc.address) |
| 177 | |
| 178 | @lock_mlist |
| 179 | @require_mlist_admin |
| 180 | def del_owner(self, user, target, mlist): |
| 181 | if len(mlist.owner < 2): |
| 182 | # Can't remove last admin |
| 183 | raise InvalidOperation(u"Impossible de supprimer le dernier modérateur.") |
| 184 | |
| 185 | userdesc = self.get_userdesc(target) |
| 186 | mlist.owner.remove(userdesc.address) |
| 187 | |
| 188 | # Listing |
| 189 | # ======= |
| 190 | |
| 191 | @with_mlist |
| 192 | def get_members(self, user, mlist): |
| 193 | return mlist.members |
| 194 | |
| 195 | @classmethod |
| 196 | def get_lists(cls, domain): |
| 197 | # TODO |
| 198 | pass |