diff options
Diffstat (limited to 'src/leap/mail/imap/messages.py')
| -rw-r--r-- | src/leap/mail/imap/messages.py | 163 |
1 files changed, 120 insertions, 43 deletions
diff --git a/src/leap/mail/imap/messages.py b/src/leap/mail/imap/messages.py index 1b996b6..6556b12 100644 --- a/src/leap/mail/imap/messages.py +++ b/src/leap/mail/imap/messages.py @@ -21,6 +21,7 @@ import copy import logging import re import time +import threading import StringIO from collections import defaultdict, namedtuple @@ -308,7 +309,7 @@ class LeapMessage(fields, MailParser, MBoxParser): implements(imap4.IMessage) - def __init__(self, soledad, uid, mbox): + def __init__(self, soledad, uid, mbox, collection=None): """ Initializes a LeapMessage. @@ -318,11 +319,14 @@ class LeapMessage(fields, MailParser, MBoxParser): :type uid: int or basestring :param mbox: the mbox this message belongs to :type mbox: basestring + :param collection: a reference to the parent collection object + :type collection: MessageCollection """ MailParser.__init__(self) self._soledad = soledad self._uid = int(uid) self._mbox = self._parse_mailbox_name(mbox) + self._collection = collection self.__chash = None self.__bdoc = None @@ -373,7 +377,7 @@ class LeapMessage(fields, MailParser, MBoxParser): def getUID(self): """ - Retrieve the unique identifier associated with this message + Retrieve the unique identifier associated with this Message. :return: uid for this message :rtype: int @@ -382,18 +386,26 @@ class LeapMessage(fields, MailParser, MBoxParser): def getFlags(self): """ - Retrieve the flags associated with this message + Retrieve the flags associated with this Message. :return: The flags, represented as strings :rtype: tuple """ if self._uid is None: return [] + uid = self._uid flags = [] fdoc = self._fdoc if fdoc: flags = fdoc.content.get(self.FLAGS_KEY, None) + + msgcol = self._collection + + # We treat the recent flag specially: gotten from + # a mailbox-level document. + if msgcol and uid in msgcol.recent_flags: + flags.append(fields.RECENT_FLAG) if flags: flags = map(str, flags) return tuple(flags) @@ -414,7 +426,7 @@ class LeapMessage(fields, MailParser, MBoxParser): :rtype: SoledadDocument """ leap_assert(isinstance(flags, tuple), "flags need to be a tuple") - log.msg('setting flags: %s' % (self._uid)) + log.msg('setting flags: %s (%s)' % (self._uid, flags)) doc = self._fdoc if not doc: @@ -424,7 +436,6 @@ class LeapMessage(fields, MailParser, MBoxParser): return doc.content[self.FLAGS_KEY] = flags doc.content[self.SEEN_KEY] = self.SEEN_FLAG in flags - doc.content[self.RECENT_KEY] = self.RECENT_FLAG in flags doc.content[self.DEL_KEY] = self.DELETED_FLAG in flags self._soledad.put_doc(doc) @@ -927,6 +938,7 @@ class MessageCollection(WithMsgFields, IndexedDB, MailParser, MBoxParser, FLAGS_DOC = "FLAGS" HEADERS_DOC = "HEADERS" CONTENT_DOC = "CONTENT" + RECENT_DOC = "RECENT" templates = { @@ -937,7 +949,6 @@ class MessageCollection(WithMsgFields, IndexedDB, MailParser, MBoxParser, fields.CONTENT_HASH_KEY: "", fields.SEEN_KEY: False, - fields.RECENT_KEY: True, fields.DEL_KEY: False, fields.FLAGS_KEY: [], fields.MULTIPART_KEY: False, @@ -970,12 +981,25 @@ class MessageCollection(WithMsgFields, IndexedDB, MailParser, MBoxParser, fields.MULTIPART_KEY: False, }, + RECENT_DOC: { + fields.TYPE_KEY: fields.TYPE_RECENT_VAL, + fields.MBOX_KEY: fields.INBOX_VAL, + fields.RECENTFLAGS_KEY: [], + } } + _rdoc_lock = threading.Lock() + def __init__(self, mbox=None, soledad=None): """ Constructor for MessageCollection. + On initialization, we ensure that we have a document for + storing the recent flags. The nature of this flag make us wanting + to store the set of the UIDs with this flag at the level of the + MessageCollection for each mailbox, instead of treating them + as a property of each message. + :param mbox: the name of the mailbox. It is the name with which we filter the query over the messages database @@ -994,17 +1018,11 @@ class MessageCollection(WithMsgFields, IndexedDB, MailParser, MBoxParser, # okay, all in order, keep going... self.mbox = self._parse_mailbox_name(mbox) self._soledad = soledad + self.__rflags = None self.initialize_db() - # I think of someone like nietzsche when reading this - - # this will be the producer that will enqueue the content - # to be processed serially by the consumer (the writer). We just - # need to `put` the new material on its plate. - - self.soledad_writer = MessageProducer( - SoledadDocWriter(soledad), - period=0.02) + # ensure that we have a recent-flags doc + self._get_or_create_rdoc() def _get_empty_doc(self, _type=FLAGS_DOC): """ @@ -1017,6 +1035,18 @@ class MessageCollection(WithMsgFields, IndexedDB, MailParser, MBoxParser, raise TypeError("Improper type passed to _get_empty_doc") return copy.deepcopy(self.templates[_type]) + def _get_or_create_rdoc(self): + """ + Try to retrieve the recent-flags doc for this MessageCollection, + and create one if not found. + """ + rdoc = self._get_recent_doc() + if not rdoc: + rdoc = self._get_empty_doc(self.RECENT_DOC) + if self.mbox != fields.INBOX_VAL: + rdoc[fields.MBOX_KEY] = self.mbox + self._soledad.create_doc(rdoc) + def _do_parse(self, raw): """ Parse raw message and return it along with @@ -1161,7 +1191,8 @@ class MessageCollection(WithMsgFields, IndexedDB, MailParser, MBoxParser, hd[key] = parts_map[key] del parts_map - # Saving + # Saving ---------------------------------------- + self.set_recent_flag(uid) # first, regular docs: flags and headers self._soledad.create_doc(fd) @@ -1203,6 +1234,76 @@ class MessageCollection(WithMsgFields, IndexedDB, MailParser, MBoxParser, # getters: specific queries + def _get_recent_flags(self): + """ + An accessor for the recent-flags set for this mailbox. + """ + if not self.__rflags: + rdoc = self._get_recent_doc() + self.__rflags = set(rdoc.content.get( + fields.RECENTFLAGS_KEY, [])) + return self.__rflags + + def _set_recent_flags(self, value): + """ + Setter for the recent-flags set for this mailbox. + """ + rdoc = self._get_recent_doc() + newv = set(value) + self.__rflags = newv + + with self._rdoc_lock: + rdoc.content[fields.RECENTFLAGS_KEY] = list(newv) + # XXX should deferLater 0 it? + self._soledad.put_doc(rdoc) + + recent_flags = property( + _get_recent_flags, _set_recent_flags, + doc="Set of UIDs with the recent flag for this mailbox.") + + def unset_recent_flags(self, uids): + """ + Unset Recent flag for a sequence of uids. + """ + self.recent_flags = self.recent_flags.difference( + set(uids)) + + def unset_recent_flag(self, uid): + """ + Unset Recent flag for a given uid. + """ + self.recent_flags = self.recent_flags.difference( + set([uid])) + + def set_recent_flag(self, uid): + """ + Set Recent flag for a given uid. + """ + self.recent_flags = self.recent_flags.union( + set([uid])) + + def _get_recent_doc(self): + """ + Get recent-flags document for this inbox. + """ + # TODO refactor this try-catch structure into a utility + try: + query = self._soledad.get_from_index( + fields.TYPE_MBOX_IDX, + fields.TYPE_RECENT_VAL, self.mbox) + if query: + if len(query) > 1: + logger.warning( + "More than one rdoc found for this mbox, " + "we got a duplicate!!") + # XXX we could take action, like trigger a background + # process to kill dupes. + return query.pop() + else: + return None + except Exception as exc: + logger.exception("Unhandled error %r" % exc) + def _get_fdoc_from_chash(self, chash): """ Return a flags document for this mailbox with a given chash. @@ -1287,6 +1388,7 @@ class MessageCollection(WithMsgFields, IndexedDB, MailParser, MBoxParser, def get_msg_by_uid(self, uid): """ Retrieves a LeapMessage by UID. + This is used primarity in the Mailbox fetch and store methods. :param uid: the message uid to query by :type uid: int @@ -1295,7 +1397,7 @@ class MessageCollection(WithMsgFields, IndexedDB, MailParser, MBoxParser, or None if not found. :rtype: LeapMessage """ - msg = LeapMessage(self._soledad, uid, self.mbox) + msg = LeapMessage(self._soledad, uid, self.mbox, collection=self) if not msg.does_exist(): return None return msg @@ -1412,28 +1514,6 @@ class MessageCollection(WithMsgFields, IndexedDB, MailParser, MBoxParser, # recent messages - def recent_iter(self): - """ - Get an iterator for the message UIDs with `recent` flag. - - :return: iterator through recent message docs - :rtype: iterable - """ - return (doc.content[self.UID_KEY] for doc in - self._soledad.get_from_index( - fields.TYPE_MBOX_RECT_IDX, - fields.TYPE_FLAGS_VAL, self.mbox, '1')) - - def get_recent(self): - """ - Get all messages with the `Recent` flag. - - :returns: a list of LeapMessages - :rtype: list - """ - return [LeapMessage(self._soledad, docid, self.mbox) - for docid in self.recent_iter()] - def count_recent(self): """ Count all messages with the `Recent` flag. @@ -1441,10 +1521,7 @@ class MessageCollection(WithMsgFields, IndexedDB, MailParser, MBoxParser, :returns: count :rtype: int """ - count = self._soledad.get_count_from_index( - fields.TYPE_MBOX_RECT_IDX, - fields.TYPE_FLAGS_VAL, self.mbox, '1') - return count + return len(self.recent_flags) # deleted messages |