Exemplo n.º 1
0
    def get_non_persistent_object(self, state, obj):
        if '_py_constant' in state:
            klass = self.simple_resolve(state['_py_constant'])
            return klass

        # this method must NOT change the passed in state dict
        state = dict(state)
        if '_py_type' in state:
            # Handle the simplified case.
            klass = self.simple_resolve(state.pop('_py_type'))
            sub_obj = copy_reg._reconstructor(klass, object, None)
        elif interfaces.ATTR_NAME_PY_TYPE in state:
            # Another simple case for persistent objects that do not want
            # their own document.
            klass = self.simple_resolve(state.pop(interfaces.ATTR_NAME_PY_TYPE))
            sub_obj = copy_reg.__newobj__(klass)
        else:
            factory = self.simple_resolve(state.pop('_py_factory'))
            factory_args = self.get_object(state.pop('_py_factory_args'), obj)
            sub_obj = factory(*factory_args)
        if len(state):
            sub_obj_state = self.get_object(state, sub_obj)
            if hasattr(sub_obj, '__setstate__'):
                sub_obj.__setstate__(dict(sub_obj_state))
            else:
                sub_obj.__dict__.update(sub_obj_state)
            if isinstance(sub_obj, persistent.Persistent):
                # This is a persistent sub-object -- mark it as such. Otherwise
                # we risk to store this object in its own table next time.
                setattr(sub_obj, interfaces.ATTR_NAME_SUB_OBJECT, True)
        if getattr(sub_obj, interfaces.ATTR_NAME_SUB_OBJECT, False):
            setattr(sub_obj, interfaces.ATTR_NAME_DOC_OBJECT, obj)
            sub_obj._p_jar = self._jar
            sub_obj._p_oid = 1  # set fake oid (needed for update _p_state, _p_changed)
        return sub_obj
Exemplo n.º 2
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    def get_non_persistent_object(self, state, obj):
        if '_py_constant' in state:
            return self.simple_resolve(state['_py_constant'])

        # this method must NOT change the passed in state dict
        state = dict(state)
        if '_py_type' in state:
            # Handle the simplified case.
            klass = self.simple_resolve(state.pop('_py_type'))
            sub_obj = copyreg._reconstructor(klass, object, None)
            self._set_object_state(state, sub_obj, obj)
        elif interfaces.PY_TYPE_ATTR_NAME in state:
            # Another simple case for persistent objects that do not want
            # their own document.
            klass = self.simple_resolve(state.pop(
                interfaces.PY_TYPE_ATTR_NAME))
            sub_obj = copyreg.__newobj__(klass)
            self._set_object_state(state, sub_obj, obj)
        else:
            factory = self.simple_resolve(state.pop('_py_factory'))
            factory_args = self.get_object(state.pop('_py_factory_args'), obj)
            sub_obj = factory(*factory_args)
            # if there is anything left over in `state`, set it below
            # otherwise setting a {} state seems to clean out the object
            # but this is such an edge case of an edge case....
            if state:
                self._set_object_state(state, sub_obj, obj)

        if getattr(sub_obj, interfaces.SUB_OBJECT_ATTR_NAME, False):
            setattr(sub_obj, interfaces.DOC_OBJECT_ATTR_NAME, obj)
            sub_obj._p_jar = self._jar
        return sub_obj
Exemplo n.º 3
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 def set_ghost_state(self, obj, doc=None):
     __traceback_info__ = (obj, doc)
     # Look up the object state by coll_name and oid.
     if doc is None:
         coll = self._jar.get_collection(obj._p_oid.database,
                                         obj._p_oid.collection)
         doc = coll.find_one({'_id': obj._p_oid.id})
     # Check that we really have a state doc now.
     if doc is None:
         raise ImportError(obj._p_oid)
     # Create a copy of the doc, so that we can modify it.
     state_doc = copy.deepcopy(doc)
     # Remove unwanted attributes.
     state_doc.pop('_id')
     state_doc.pop('_py_persistent_type', None)
     # Allow the conflict handler to modify the object or state document
     # before it is set on the object.
     self._jar.conflict_handler.on_before_set_state(obj, state_doc)
     # Now convert the document to a proper Python state dict.
     state = dict(self.get_object(state_doc, obj))
     # Now store the original state. It is assumed that the state dict is
     # not modified later.
     # Make sure that we never set the original state multiple times, even
     # if reassigning the state within the same transaction. Otherwise we
     # can never fully undo a transaction.
     if obj._p_oid not in self._jar._original_states:
         self._jar._original_states[obj._p_oid] = doc
         # Sometimes this method is called to update the object state
         # before storage. Only update the latest states when the object is
         # originally loaded.
         self._jar._latest_states[obj._p_oid] = doc
     # Set the state.
     obj.__setstate__(state)
Exemplo n.º 4
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 def set_ghost_state(self, obj, doc=None):
     __traceback_info__ = (obj, doc)
     # Look up the object state by coll_name and oid.
     if doc is None:
         coll = self._jar.get_collection(
             obj._p_oid.database, obj._p_oid.collection)
         doc = coll.find_one({'_id': obj._p_oid.id})
     # Check that we really have a state doc now.
     if doc is None:
         raise ImportError(obj._p_oid)
     # Create a copy of the doc, so that we can modify it.
     state_doc = copy.deepcopy(doc)
     # Remove unwanted attributes.
     state_doc.pop('_id')
     state_doc.pop('_py_persistent_type', None)
     # Allow the conflict handler to modify the object or state document
     # before it is set on the object.
     self._jar.conflict_handler.on_before_set_state(obj, state_doc)
     # Now convert the document to a proper Python state dict.
     state = dict(self.get_object(state_doc, obj))
     # Now store the original state. It is assumed that the state dict is
     # not modified later.
     # Make sure that we never set the original state multiple times, even
     # if reassigning the state within the same transaction. Otherwise we
     # can never fully undo a transaction.
     if obj._p_oid not in self._jar._original_states:
         self._jar._original_states[obj._p_oid] = doc
         # Sometimes this method is called to update the object state
         # before storage. Only update the latest states when the object is
         # originally loaded.
         self._jar._latest_states[obj._p_oid] = doc
     # Set the state.
     obj.__setstate__(state)
Exemplo n.º 5
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 def set_ghost_state(self, obj, doc=None):
     __traceback_info__ = (obj, doc)
     # Check whether the object state was stored on the object itself.
     if doc is None:
         doc = getattr(obj, interfaces.STATE_ATTR_NAME, None)
     # Look up the object state by table_name and oid.
     if doc is None:
         doc = self._jar._get_doc_by_dbref(obj._p_oid)
     # Check that we really have a state doc now.
     if doc is None:
         raise ImportError(obj._p_oid)
     # Remove unwanted attributes.
     doc.pop(interfaces.PY_TYPE_ATTR_NAME, None)
     # Now convert the document to a proper Python state dict.
     state = dict(self.get_object(doc, obj))
     if obj._p_oid not in self._jar._latest_states:
         # Sometimes this method is called to update the object state
         # before storage. Only update the latest states when the object is
         # originally loaded.
         self._jar._latest_states[obj._p_oid] = doc
     # Set the state.
     obj.__setstate__(state)
     # Run the custom load functions.
     if interfaces.IPersistentSerializationHooks.providedBy(obj):
         obj._pj_after_load_hook(self._jar._conn)
Exemplo n.º 6
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 def set_ghost_state(self, obj, doc=None):
     __traceback_info__ = (obj, doc)
     # Check whether the object state was stored on the object itself.
     if doc is None:
         doc = getattr(obj, interfaces.STATE_ATTR_NAME, None)
     # Look up the object state by table_name and oid.
     if doc is None:
         doc = self._jar._get_doc_by_dbref(obj._p_oid)
     # Check that we really have a state doc now.
     if doc is None:
         raise ImportError(obj._p_oid)
     # Remove unwanted attributes.
     doc.pop(interfaces.PY_TYPE_ATTR_NAME, None)
     # Now convert the document to a proper Python state dict.
     state = dict(self.get_object(doc, obj))
     if obj._p_oid not in self._jar._latest_states:
         # Sometimes this method is called to update the object state
         # before storage. Only update the latest states when the object is
         # originally loaded.
         self._jar._latest_states[obj._p_oid] = doc
     # Set the state.
     obj.__setstate__(state)
     # Run the custom load functions.
     if interfaces.IPersistentSerializationHooks.providedBy(obj):
         obj._pj_after_load_hook(self._jar._conn)
Exemplo n.º 7
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    def get_state(self, obj, seen=None):
        seen = seen or []
        if isinstance(obj, interfaces.MONGO_NATIVE_TYPES):
            # If we have a native type, we'll just use it as the state.
            return obj
        if isinstance(obj, str):
            # In Python 2, strings can be ASCII, encoded unicode or binary
            # data. Unfortunately, BSON cannot handle that. So, if we have a
            # string that cannot be UTF-8 decoded (luckily ASCII is a valid
            # subset of UTF-8), then we use the BSON binary type.
            try:
                obj.decode('utf-8')
                return obj
            except UnicodeError:
                return bson.binary.Binary(obj)

        # Some objects might not naturally serialize well and create a very
        # ugly Mongo entry. Thus, we allow custom serializers to be
        # registered, which can encode/decode different types of objects.
        for serializer in SERIALIZERS:
            if serializer.can_write(obj):
                return serializer.write(obj)

        if isinstance(obj, (type, types.ClassType)):
            # We frequently store class and function paths as meta-data, so we
            # need to be able to properly encode those.
            return {'_py_type': 'type',
                    'path': get_dotted_name(obj)}
        if isinstance(obj, (tuple, list, PersistentList)):
            # Make sure that all values within a list are serialized
            # correctly. Also convert any sequence-type to a simple list.
            return [self.get_state(value, seen) for value in obj]
        if isinstance(obj, (dict, PersistentDict)):
            # Same as for sequences, make sure that the contained values are
            # properly serialized.
            # Note: A big constraint in Mongo is that keys must be strings!
            has_non_string_key = False
            data = []
            for key, value in obj.items():
                data.append((key, self.get_state(value, seen)))
                has_non_string_key |= not isinstance(key, basestring)
            if not has_non_string_key:
                # The easy case: all keys are strings:
                return dict(data)
            else:
                # We first need to reduce the keys and then produce a data
                # structure.
                data = [(self.get_state(key), value) for key, value in data]
                return {'dict_data': data}

        if isinstance(obj, persistent.Persistent):
            # Only create a persistent reference, if the object does not want
            # to be a sub-document.
            if not getattr(obj, '_p_mongo_sub_object', False):
                return self.get_persistent_state(obj, seen)
            # This persistent object is a sub-document, so it is treated like
            # a non-persistent object.

        return self.get_non_persistent_state(obj, seen)
Exemplo n.º 8
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    def get_state(self, obj, seen=None):
        seen = seen or []
        if isinstance(obj, interfaces.MONGO_NATIVE_TYPES):
            # If we have a native type, we'll just use it as the state.
            return obj
        if isinstance(obj, str):
            # In Python 2, strings can be ASCII, encoded unicode or binary
            # data. Unfortunately, BSON cannot handle that. So, if we have a
            # string that cannot be UTF-8 decoded (luckily ASCII is a valid
            # subset of UTF-8), then we use the BSON binary type.
            try:
                obj.decode('utf-8')
                return obj
            except UnicodeError:
                return bson.binary.Binary(obj)

        # Some objects might not naturally serialize well and create a very
        # ugly Mongo entry. Thus, we allow custom serializers to be
        # registered, which can encode/decode different types of objects.
        for serializer in SERIALIZERS:
            if serializer.can_write(obj):
                return serializer.write(obj)

        if isinstance(obj, (type, types.ClassType)):
            # We frequently store class and function paths as meta-data, so we
            # need to be able to properly encode those.
            return {'_py_type': 'type', 'path': get_dotted_name(obj)}
        if isinstance(obj, (tuple, list, PersistentList)):
            # Make sure that all values within a list are serialized
            # correctly. Also convert any sequence-type to a simple list.
            return [self.get_state(value, seen) for value in obj]
        if isinstance(obj, (dict, PersistentDict)):
            # Same as for sequences, make sure that the contained values are
            # properly serialized.
            # Note: A big constraint in Mongo is that keys must be strings!
            has_non_string_key = False
            data = []
            for key, value in obj.items():
                data.append((key, self.get_state(value, seen)))
                has_non_string_key |= not isinstance(key, basestring)
            if not has_non_string_key:
                # The easy case: all keys are strings:
                return dict(data)
            else:
                # We first need to reduce the keys and then produce a data
                # structure.
                data = [(self.get_state(key), value) for key, value in data]
                return {'dict_data': data}

        if isinstance(obj, persistent.Persistent):
            # Only create a persistent reference, if the object does not want
            # to be a sub-document.
            if not getattr(obj, '_p_mongo_sub_object', False):
                return self.get_persistent_state(obj, seen)
            # This persistent object is a sub-document, so it is treated like
            # a non-persistent object.

        return self.get_non_persistent_state(obj, seen)
Exemplo n.º 9
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 def back_link(self):
     url = self.request.form.get('referer')
     if not url:
         addview = aq_parent(aq_inner(self.context))
         context = aq_parent(aq_inner(addview))
         url = str(component.getMultiAdapter((context, self.request),
                     name=u"absolute_url")) + '/@@manage-portlets'
     return dict(url=url,
                 label=_(u"Back to portlets"))
Exemplo n.º 10
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    def get_object(self, state, obj):
        if isinstance(state, bson.objectid.ObjectId):
            # The object id is special. Preserve it.
            return state
        if isinstance(state, bson.binary.Binary):
            # Binary data in Python 2 is presented as a string. We will
            # convert back to binary when serializing again.
            return str(state)
        if isinstance(state, bson.dbref.DBRef):
            # Load a persistent object. Using the get_ghost() method, so that
            # caching is properly applied.
            return self.get_ghost(state)
        if isinstance(state, dict) and state.get('_py_type') == 'type':
            # Convert a simple object reference, mostly classes.
            return self.simple_resolve(state['path'])

        # Give the custom serializers a chance to weigh in.
        for serializer in SERIALIZERS:
            if serializer.can_read(state):
                return serializer.read(state)

        if isinstance(state, dict) and (
            '_py_factory' in state
            or '_py_constant' in state
            or '_py_type' in state
            or '_py_persistent_type' in state):
            # Load a non-persistent object.
            return self.get_non_persistent_object(state, obj)
        if isinstance(state, (tuple, list)):
            # All lists are converted to persistent lists, so that their state
            # changes are noticed. Also make sure that all value states are
            # converted to objects.
            sub_obj = [self.get_object(value, obj) for value in state]
            if self.preferPersistent:
                sub_obj = PersistentList(sub_obj)
                sub_obj._p_mongo_doc_object = obj
                sub_obj._p_jar = self._jar
            return sub_obj
        if isinstance(state, dict):
            # All dictionaries are converted to persistent dictionaries, so
            # that state changes are detected. Also convert all value states
            # to objects.
            # Handle non-string key dicts.
            if 'dict_data' in state:
                items = state['dict_data']
            else:
                items = state.items()
            sub_obj = dict(
                [(self.get_object(name, obj), self.get_object(value, obj))
                 for name, value in items])
            if self.preferPersistent:
                sub_obj = PersistentDict(sub_obj)
                sub_obj._p_mongo_doc_object = obj
                sub_obj._p_jar = self._jar
            return sub_obj
        return state
Exemplo n.º 11
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    def get_object(self, state, obj):
        if isinstance(state, bson.objectid.ObjectId):
            # The object id is special. Preserve it.
            return state
        if isinstance(state, bson.binary.Binary):
            # Binary data in Python 2 is presented as a string. We will
            # convert back to binary when serializing again.
            return str(state)
        if isinstance(state, bson.dbref.DBRef):
            # Load a persistent object. Using the get_ghost() method, so that
            # caching is properly applied.
            return self.get_ghost(state)
        if isinstance(state, dict) and state.get('_py_type') == 'type':
            # Convert a simple object reference, mostly classes.
            return self.simple_resolve(state['path'])

        # Give the custom serializers a chance to weigh in.
        for serializer in SERIALIZERS:
            if serializer.can_read(state):
                return serializer.read(state)

        if isinstance(state, dict) and (
            '_py_factory' in state
            or '_py_constant' in state
            or '_py_type' in state
            or '_py_persistent_type' in state):
            # Load a non-persistent object.
            return self.get_non_persistent_object(state, obj)
        if isinstance(state, (tuple, list)):
            # All lists are converted to persistent lists, so that their state
            # changes are noticed. Also make sure that all value states are
            # converted to objects.
            sub_obj = [self.get_object(value, obj) for value in state]
            if self.preferPersistent:
                sub_obj = PersistentList(sub_obj)
                sub_obj._p_mongo_doc_object = obj
                sub_obj._p_jar = self._jar
            return sub_obj
        if isinstance(state, dict):
            # All dictionaries are converted to persistent dictionaries, so
            # that state changes are detected. Also convert all value states
            # to objects.
            # Handle non-string key dicts.
            if 'dict_data' in state:
                items = state['dict_data']
            else:
                items = state.items()
            sub_obj = dict(
                [(self.get_object(name, obj), self.get_object(value, obj))
                 for name, value in items])
            if self.preferPersistent:
                sub_obj = PersistentDict(sub_obj)
                sub_obj._p_mongo_doc_object = obj
                sub_obj._p_jar = self._jar
            return sub_obj
        return state
Exemplo n.º 12
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 def handleAdd(self, action):
     data, errors = self.extractData()
     if errors:
         self.status = self.formErrorsMessage
         return
     params = urlencode(dict([('composer.widgets.%s'%key, value)
                              for key, value in data.items()]))
     subscribe_url = '%s/subscribe.html?%s' % (self.context.absolute_url(),
                                               params)
     self.request.response.redirect(subscribe_url)
     return
Exemplo n.º 13
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    def __repr__(self):
        def dict_format(data):
            return pprint.pformat(dict(data)).replace('\n', '')

        data = dict(channel=self.channel)
        for attr in ('composer_data', 'collector_data', 'metadata'):
            data[attr] = dict_format(getattr(self, attr))

        fmt_str = ("<SimpleSubscription to %(channel)r with composerdata: "
                   "%(composer_data)s, collectordata: %(collector_data)s, "
                   "and metadata: %(metadata)s>")
        return fmt_str % data
Exemplo n.º 14
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    def add_subscription(
        self, channel, secret, composerd, collectord, metadata):
        subscription = self.subscription_factory(
            channel, secret, composerd, collectord, metadata)

        data = ISubscriptionCatalogData(subscription)
        contained_name = u'%s-%s' % (data.key, data.format)
        if contained_name in self:
            raise ValueError(_("There's already a subscription for ${name}",
                               mapping=dict(name=contained_name)))
        self[contained_name] = subscription
        return self[contained_name]
Exemplo n.º 15
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    def __repr__(self):
        def dict_format(data):
            return pprint.pformat(dict(data)).replace('\n', '')

        data = dict(channel=self.channel)
        for attr in ('composer_data', 'collector_data', 'metadata'):
            data[attr] = dict_format(getattr(self, attr))

        fmt_str = ("<SimpleSubscription to %(channel)r with composerdata: "
                   "%(composer_data)s, collectordata: %(collector_data)s, "
                   "and metadata: %(metadata)s>")
        return fmt_str % data
Exemplo n.º 16
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 def __init__(self, data=None, **kwargs):
     # We optimize the case where data is not a dict. The original
     # implementation always created an empty dict, which it then
     # updated. This turned out to be expensive.
     if data is None:
         self.data = {}
     elif isinstance(data, dict):
         self.data = data.copy()
     else:
         self.data = dict(data)
     if len(kwargs):
         self.update(kwargs)
Exemplo n.º 17
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 def __init__(self, data=None, **kwargs):
     # We optimize the case where data is not a dict. The original
     # implementation always created an empty dict, which it then
     # updated. This turned out to be expensive.
     if data is None:
         self.data = {}
     elif isinstance(data, dict):
         self.data = data.copy()
     else:
         self.data = dict(data)
     if len(kwargs):
         self.update(kwargs)
Exemplo n.º 18
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    def add_subscription(self, channel, secret, composerd, collectord,
                         metadata):
        subscription = self.subscription_factory(channel, secret, composerd,
                                                 collectord, metadata)

        data = ISubscriptionCatalogData(subscription)
        contained_name = u'%s-%s' % (data.key, data.format)
        if contained_name in self:
            raise ValueError(
                _("There's already a subscription for ${name}",
                  mapping=dict(name=contained_name)))
        self[contained_name] = subscription
        return self[contained_name]
Exemplo n.º 19
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def tool_added(tool, event):
    # Add children
    factories = dict(channels=ChannelContainer,
                     collectors=collective.dancing.collector.CollectorContainer)
    existing = tool.objectIds()
    for name, factory in factories.items():
        if name not in existing:
            tool[name] = factory(name)

    # Create and register salt
    salt = getattr(aq_base(tool), 'salt', Salt())
    tool.salt = salt
    sm = component.getSiteManager(tool)
    sm.registerUtility(salt, collective.singing.interfaces.ISalt)
Exemplo n.º 20
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def tool_added(tool, event):
    # Add children
    factories = dict(channels=ChannelContainer,
                     collectors=collective.dancing.collector.CollectorContainer)
    existing = tool.objectIds()
    for name, factory in factories.items():
        if name not in existing:
            tool[name] = factory(name)

    # Create and register salt
    salt = getattr(aq_base(tool), 'salt', Salt())
    tool.salt = salt
    sm = zope.component.getSiteManager(tool)
    sm.registerUtility(salt, collective.singing.interfaces.ISalt)
Exemplo n.º 21
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    def set_ghost_state(self, obj, doc=None):
        # # Check whether the object state was stored on the object itself.
        if doc is None:
            doc = getattr(obj, interfaces.ATTR_NAME_STATE, None)
        # Look up the object state by table_name and oid.
        if doc is None:
            doc = self._jar._get_doc_by_dbref(obj._p_oid)
        # Check that we really have a state doc now.
        if doc is None:
            raise ImportError(obj._p_oid)
        # Remove unwanted attributes.
        pytype = doc.pop(interfaces.ATTR_NAME_PY_TYPE)

        # Now convert the document to a proper Python state dict.
        state = dict(self.get_object(doc, obj))

        # Sometimes this method is called to update the object state
        # before storage.
        doc[interfaces.ATTR_NAME_PY_TYPE] = pytype
        # Set the state.
        obj.__setstate__(state)
        # Run the custom load functions.
        if interfaces.IPersistentSerializationHooks.providedBy(obj):
            obj._pj_after_load_hook(self._jar._conn)
Exemplo n.º 22
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    def __init__(self, channel, data):

        self._channel = channel

        # generate random secret number as dummy
        secret = "".join([random.choice(string.ascii_letters + string.digits) for i in range(50)])

        collector_data = {}
        selected_collectors = []
        if not isinstance(data["topics"], (list, tuple)):
            data["topics"] = []
        for collector_title in data["topics"]:
            try:
                collector = self.find_topic(collector_title)
            except AttributeError:
                collector = None
            if collector is not None:
                selected_collectors.append(collector)

        if not selected_collectors:
            # if selected_collectors is empty it is important to leave it empty
            # even though some channels don't have optional sections.
            # In a channel with optional sections a missing selected_collectors
            # means subscriber will get everything
            # An empty selected_collectors means they will get nothing.
            # we want the latter.
            selected_collectors = [dummy_collector]

        collector_data["selected_collectors"] = set(selected_collectors)

        # make sure the email is unicode too
        subscription_email = unicode(data["email"].strip())
        # "confirm_url" is no needed here
        composer_data = dict(email=subscription_email)
        if isinstance(data["unsubscribe_url"], basestring) and data["unsubscribe_url"]:
            composer_data["unsubscribe_url"] = data["unsubscribe_url"]
        if isinstance(data["my_subscriptions_url"], basestring) and data["my_subscriptions_url"]:
            composer_data["my_subscriptions_url"] = data["my_subscriptions_url"]
        if isinstance(data["subscriber_data"], dict):
            composer_data.update(data["subscriber_data"])

        # default the pending value to False
        metadata = dict(format="html", pending=False)
        if isinstance(data["format"], basestring) and data["format"]:
            metadata["format"] = data["format"]

        if data["subscription_date"]:
            metadata["date"] = data["subscription_date"]

        super(SubscriptionFromDictionary, self).__init__(channel, secret, composer_data, collector_data, metadata)

        # S&D expects to have a persistent store during send to store the
        # cue for example. It stores it in self.metadata. We will instead
        # replace it with a store in the channel object itself.
        if subscription_email not in self._channel.subscriptions_metadata:
            self._channel.subscriptions_metadata[subscription_email] = persistent.dict.PersistentDict()
            # we only set the metadata the first time from the subscriber list.
            # We don't want to keep creating commits on sends
            self._channel.subscriptions_metadata[subscription_email].update(metadata)

        self.metadata = self._channel.subscriptions_metadata[subscription_email]
Exemplo n.º 23
0
 def dict_format(data):
     return pprint.pformat(dict(data)).replace('\n', '')
Exemplo n.º 24
0
    def get_state(self, obj, pobj=None):
        objectType = type(obj)
        # in_seen = seen
        # if seen is None:
        #     seen = set()
        __traceback_info__ = obj, objectType, pobj
        if objectType in interfaces.PJ_NATIVE_TYPES:
            # If we have a native type, we'll just use it as the state.
            return obj
        if type(obj) == bytes:
            return {
                '_py_type': 'BINARY',
                'data': base64.b64encode(obj).decode('ascii')
            }
        if type(obj) == str:
            return obj
        # Some objects might not naturally serialize well and create a very
        # ugly JSONB entry. Thus, we allow custom serializers to be
        # registered, which can encode/decode different types of objects.
        for serializer in SERIALIZERS:
            if serializer.can_write(obj):
                return serializer.write(obj)

        if objectType == datetime.date:
            return {
                '_py_type': 'datetime.date',
                'value': obj.strftime(FMT_DATE)
            }
        if objectType == datetime.time:
            return {
                '_py_type': 'datetime.time',
                'value': obj.strftime(FMT_TIME)
            }
        if objectType == datetime.datetime:
            return {
                '_py_type': 'datetime.datetime',
                'value': obj.strftime(FMT_DATETIME)
            }

        if isinstance(obj, type):
            # We frequently store class and function paths as meta-data, so we
            # need to be able to properly encode those.
            return {'_py_type': 'type', 'path': get_dotted_name(obj)}

        # We need to make sure that the object's jar and doc-object are
        # set. This is important for the case when a sub-object was just
        # added.
        if getattr(obj, interfaces.SUB_OBJECT_ATTR_NAME, False):
            if obj._p_jar is None:
                if pobj is not None and \
                        getattr(pobj, '_p_jar', None) is not None:
                    obj._p_jar = pobj._p_jar
                setattr(obj, interfaces.DOC_OBJECT_ATTR_NAME, pobj)

        if isinstance(obj, (tuple, list, PersistentList)):
            # Make sure that all values within a list are serialized
            # correctly. Also convert any sequence-type to a simple list.
            return [self.get_state(value, pobj) for value in obj]
        if isinstance(obj, (dict, PersistentDict)):
            # Same as for sequences, make sure that the contained values are
            # properly serialized.
            # Note: see comments at the definition of DICT_NON_STRING_KEY_MARKER
            has_non_compliant_key = False
            data = []
            for key, value in obj.items():
                data.append((key, self.get_state(value, pobj)))
                if (not isinstance(key, str) or  # non-string
                        # a key with our special marker
                        key == DICT_NON_STRING_KEY_MARKER):
                    has_non_compliant_key = True
            if not has_non_compliant_key:
                # The easy case: all keys are complaint:
                return dict(data)
            else:
                # We first need to reduce the keys and then produce a data
                # structure.
                data = [(self.get_state(key, pobj), value)
                        for key, value in data]
                return {DICT_NON_STRING_KEY_MARKER: data}

        if isinstance(obj, persistent.Persistent):
            # Only create a persistent reference, if the object does not want
            # to be a sub-document.
            if not getattr(obj, interfaces.SUB_OBJECT_ATTR_NAME, False):
                return self.get_persistent_state(obj)
            # This persistent object is a sub-document, so it is treated like
            # a non-persistent object.

        try:
            res = self.get_non_persistent_state(obj)
        except RuntimeError as re:
            # let it run into a RuntimeError...
            # it's hard to catch a non-persistent - non-persistent circular
            #    reference while NOT catching a
            #    >>> anobj = object()
            #    >>> alist = [anobj, anobj]

            if re.args[0].startswith('maximum recursion depth exceeded'):
                raise interfaces.CircularReferenceError(obj)
            else:
                raise
        return res
Exemplo n.º 25
0
 def dict_format(data):
     return pprint.pformat(dict(data)).replace('\n', '')
Exemplo n.º 26
0
    def get_state(self, obj, pobj=None, seen=None):
        seen = seen or []
        objectType = type(obj)
        if objectType in interfaces.PJ_NATIVE_TYPES:
            # If we have a native type, we'll just use it as the state.
            return obj
        if isinstance(obj, str):
            # In Python 2, strings can be ASCII, encoded unicode or binary
            # data. Unfortunately, BSON cannot handle that. So, if we have a
            # string that cannot be UTF-8 decoded (luckily ASCII is a valid
            # subset of UTF-8), then we use the BSON binary type.
            try:
                obj.decode('utf-8')
                return obj
            except UnicodeError:
                return {'_py_type': 'BINARY', 'data': obj.encode('base64')}
        # Some objects might not naturally serialize well and create a very
        # ugly JSONB entry. Thus, we allow custom serializers to be
        # registered, which can encode/decode different types of objects.
        for serializer in SERIALIZERS:
            if serializer.can_write(obj):
                return serializer.write(obj)

        if objectType == datetime.date:
            return {'_py_type': 'datetime.date',
                    'value': obj.strftime(FMT_DATE)}
        if objectType == datetime.time:
            return {'_py_type': 'datetime.time',
                    'value': obj.strftime(FMT_TIME)}
        if objectType == datetime.datetime:
            return {'_py_type': 'datetime.datetime',
                    'value': obj.strftime(FMT_DATETIME)}

        if isinstance(obj, (type, types.ClassType)):
            # We frequently store class and function paths as meta-data, so we
            # need to be able to properly encode those.
            return {'_py_type': 'type',
                    'path': get_dotted_name(obj)}

        # We need to make sure that the object's jar and doc-object are
        # set. This is important for the case when a sub-object was just
        # added.
        if getattr(obj, interfaces.SUB_OBJECT_ATTR_NAME, False):
            if obj._p_jar is None:
                if pobj is not None and \
                        getattr(pobj, '_p_jar', None) is not None:
                    obj._p_jar = pobj._p_jar
                setattr(obj, interfaces.DOC_OBJECT_ATTR_NAME, pobj)

        if isinstance(obj, (tuple, list, PersistentList)):
            # Make sure that all values within a list are serialized
            # correctly. Also convert any sequence-type to a simple list.
            return [self.get_state(value, pobj, seen) for value in obj]
        if isinstance(obj, (dict, PersistentDict)):
            # Same as for sequences, make sure that the contained values are
            # properly serialized.
            # Note: A big constraint in JSONB is that keys must be strings!
            has_non_string_key = False
            data = []
            for key, value in obj.items():
                data.append((key, self.get_state(value, pobj, seen)))
                has_non_string_key |= not isinstance(key, basestring)
                if (not isinstance(key, basestring) or '\0' in key):
                    has_non_string_key = True
            if not has_non_string_key:
                # The easy case: all keys are strings:
                return dict(data)
            else:
                # We first need to reduce the keys and then produce a data
                # structure.
                data = [(self.get_state(key, pobj), value)
                        for key, value in data]
                return {'dict_data': data}

        if isinstance(obj, persistent.Persistent):
            # Only create a persistent reference, if the object does not want
            # to be a sub-document.
            if not getattr(obj, interfaces.SUB_OBJECT_ATTR_NAME, False):
                return self.get_persistent_state(obj, seen)
            # This persistent object is a sub-document, so it is treated like
            # a non-persistent object.

        return self.get_non_persistent_state(obj, seen)
Exemplo n.º 27
0
    def get_object(self, state, obj):
        # stateIsDict and state_py_type: optimization to avoid X lookups
        # the code was:
        # if isinstance(state, dict) and state.get('_py_type') == 'DBREF':
        # this methods gets called a gazillion times, so being fast is crucial
        stateIsDict = isinstance(state, dict)
        if stateIsDict:
            state_py_type = state.get('_py_type')
            if state_py_type == 'BINARY':
                # Binary data in Python 2 is presented as a string. We will
                # convert back to binary when serializing again.
                return state['data'].decode('base64')
            if state_py_type == 'DBREF':
                # Load a persistent object. Using the _jar.load() method to make
                # sure we're loading from right database and caching is properly
                # applied.
                dbref = DBRef(state['table'], state['id'], state['database'])
                return self._jar.load(dbref)
            if state_py_type == 'type':
                # Convert a simple object reference, mostly classes.
                return self.simple_resolve(state['path'])
            if state_py_type == 'datetime.date':
                return datetime.datetime.strptime(
                    state['value'], FMT_DATE).date()
            if state_py_type == 'datetime.time':
                return datetime.datetime.strptime(
                    state['value'], FMT_TIME).time()
            if state_py_type == 'datetime.datetime':
                return datetime.datetime.strptime(
                    state['value'], FMT_DATETIME)

        # Give the custom serializers a chance to weigh in.
        for serializer in SERIALIZERS:
            if serializer.can_read(state):
                return serializer.read(state)

        if stateIsDict and (
            '_py_factory' in state
            or '_py_constant' in state
            or '_py_type' in state
            or interfaces.PY_TYPE_ATTR_NAME in state):
            # Load a non-persistent object.
            return self.get_non_persistent_object(state, obj)
        if isinstance(state, (tuple, list)):
            # All lists are converted to persistent lists, so that their state
            # changes are noticed. Also make sure that all value states are
            # converted to objects.
            sub_obj = [self.get_object(value, obj) for value in state]
            if self.preferPersistent:
                sub_obj = PersistentList(sub_obj)
                setattr(sub_obj, interfaces.DOC_OBJECT_ATTR_NAME, obj)
                sub_obj._p_jar = self._jar
            return sub_obj
        if stateIsDict:
            # All dictionaries are converted to persistent dictionaries, so
            # that state changes are detected. Also convert all value states
            # to objects.
            # Handle non-string key dicts.
            if 'dict_data' in state:
                items = state['dict_data']
            else:
                items = state.items()
            sub_obj = dict(
                [(self.get_object(name, obj), self.get_object(value, obj))
                 for name, value in items])
            if self.preferPersistent:
                sub_obj = PersistentDict(sub_obj)
                setattr(sub_obj, interfaces.DOC_OBJECT_ATTR_NAME, obj)
                sub_obj._p_jar = self._jar
            return sub_obj
        return state
Exemplo n.º 28
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    def __init__(self, channel, data):

        self._channel = channel

        # generate random secret number as dummy
        secret = ''.join([random.choice(
            string.ascii_letters + string.digits) for i in range(50)])

        collector_data = {}
        selected_collectors = []
        if not isinstance(data["topics"], (list, tuple)):
            data["topics"] = []
        for collector_title in data["topics"]:
            try:
                collector = self.find_topic(collector_title)
            except AttributeError:
                collector = None
            if collector is not None:
                selected_collectors.append(collector)

        if not selected_collectors:
            # if selected_collectors is empty it is important to leave it empty
            # even though some channels don't have optional sections.
            # In a channel with optional sections a missing selected_collectors
            # means subscriber will get everything
            # An empty selected_collectors means they will get nothing.
            # we want the latter.
            selected_collectors = [dummy_collector]

        collector_data["selected_collectors"] = set(selected_collectors)

        # make sure the email is unicode too
        subscription_email = unicode(data["email"].strip())
        # "confirm_url" is no needed here
        composer_data = dict(email=subscription_email)
        if isinstance(data["unsubscribe_url"], basestring) and \
           data["unsubscribe_url"]:
            composer_data["unsubscribe_url"] = data["unsubscribe_url"]
        if isinstance(data["my_subscriptions_url"], basestring) and \
           data["my_subscriptions_url"]:
            composer_data["my_subscriptions_url"] = data["my_subscriptions_url"]
        if isinstance(data["subscriber_data"], dict):
            composer_data.update(data["subscriber_data"])

        # default the pending value to False
        metadata = dict(format="html", pending=False)
        if isinstance(data["format"], basestring) and \
           data["format"]:
            metadata["format"] = data["format"]

        if data["subscription_date"]:
            metadata["date"] = data["subscription_date"]

        super(SubscriptionFromDictionary, self).__init__(
            channel,
            secret,
            composer_data,
            collector_data,
            metadata
        )

        # S&D expects to have a persistent store during send to store the
        # cue for example. It stores it in self.metadata. We will instead
        # replace it with a store in the channel object itself.
        if subscription_email not in self._channel.subscriptions_metadata:
            self._channel.subscriptions_metadata[subscription_email] = \
                persistent.dict.PersistentDict()
            # we only set the metadata the first time from the subscriber list.
            # We don't want to keep creating commits on sends
            self._channel.subscriptions_metadata[subscription_email]. \
                update(metadata)

        self.metadata = self._channel.subscriptions_metadata[subscription_email]
Exemplo n.º 29
0
    def get_object(self, state, obj):
        # stateIsDict and state_py_type: optimization to avoid X lookups
        # the code was:
        # if isinstance(state, dict) and state.get('_py_type') == 'DBREF':
        # this methods gets called a gazillion times, so being fast is crucial
        stateIsDict = isinstance(state, dict)
        if stateIsDict:
            state_py_type = state.get('_py_type')
            if state_py_type == 'BINARY':
                # Binary data in Python 2 is presented as a string. We will
                # convert back to binary when serializing again.
                return base64.b64decode(state['data'])
            if state_py_type == 'DBREF':
                # Load a persistent object. Using the _jar.load() method to make
                # sure we're loading from right database and caching is properly
                # applied.
                dbref = DBRef(state['table'], state['id'], state['database'])
                return self._jar.load(dbref)
            if state_py_type == 'type':
                # Convert a simple object reference, mostly classes.
                return self.simple_resolve(state['path'])
            if state_py_type == 'datetime.date':
                return datetime.datetime.strptime(state['value'],
                                                  FMT_DATE).date()
            if state_py_type == 'datetime.time':
                try:
                    return datetime.datetime.strptime(state['value'],
                                                      FMT_TIME).time()
                except ValueError:
                    # BBB: We originally did not track sub-seconds.
                    warnings.warn(
                        "Data in old time format found. Support for the "
                        "old format will be removed in pjpersist 2.0.",
                        DeprecationWarning)
                    return datetime.datetime.strptime(state['value'],
                                                      FMT_TIME_BBB).time()
            if state_py_type == 'datetime.datetime':
                try:
                    return datetime.datetime.strptime(state['value'],
                                                      FMT_DATETIME)
                except ValueError:
                    # BBB: We originally did not track sub-seconds.
                    warnings.warn(
                        "Data in old date/time format found. Support for the "
                        "old format will be removed in pjpersist 2.0.",
                        DeprecationWarning)
                    return datetime.datetime.strptime(state['value'],
                                                      FMT_DATETIME_BBB)

        # Give the custom serializers a chance to weigh in.
        for serializer in SERIALIZERS:
            if serializer.can_read(state):
                return serializer.read(state)

        if stateIsDict and ('_py_factory' in state or '_py_constant' in state
                            or '_py_type' in state
                            or interfaces.PY_TYPE_ATTR_NAME in state):
            # Load a non-persistent object.
            return self.get_non_persistent_object(state, obj)
        if isinstance(state, (tuple, list)):
            # All lists are converted to persistent lists, so that their state
            # changes are noticed. Also make sure that all value states are
            # converted to objects.
            sub_obj = [self.get_object(value, obj) for value in state]
            if self.preferPersistent:
                sub_obj = PersistentList(sub_obj)
                setattr(sub_obj, interfaces.DOC_OBJECT_ATTR_NAME, obj)
                sub_obj._p_jar = self._jar
            return sub_obj
        if stateIsDict:
            # All dictionaries are converted to persistent dictionaries, so
            # that state changes are detected. Also convert all value states
            # to objects.
            # Handle non-string key dicts.
            # Note: see comments at the definition of DICT_NON_STRING_KEY_MARKER
            if DICT_NON_STRING_KEY_MARKER in state:
                items = state[DICT_NON_STRING_KEY_MARKER]
            else:
                items = state.items()
            sub_obj = dict([(self.get_object(name,
                                             obj), self.get_object(value, obj))
                            for name, value in items])
            if self.preferPersistent:
                sub_obj = PersistentDict(sub_obj)
                setattr(sub_obj, interfaces.DOC_OBJECT_ATTR_NAME, obj)
                sub_obj._p_jar = self._jar
            return sub_obj
        return state