コード例 #1
0
ファイル: ICalendar.py プロジェクト: vogth/chandler
def itemsToVObject(view, items, cal=None, filters=None):
    """
    Iterate through items, add to cal, create a new vcalendar if needed.

    Consider only master events (then serialize all modifications).  For now,
    set all timezones to Pacific.

    """

    if filters is None:
        filters = ()  # we want filters to be iterable

    def makeDateTimeValue(dt, asDate=False):
        if asDate:
            return dt.date()
        elif dt.tzinfo == view.tzinfo.floating:
            return dt.replace(tzinfo=None)
        else:
            return dt

    def populateCommon(comp, item):
        """
        Populate the given vevent or vtodo vobject with values for
        attributes common to Events or Tasks).
        """

        if getattr(item, Note.icalUID.name, None) is None:
            item.icalUID = unicode(item.itsUUID)
        comp.add("uid").value = item.icalUID

        # displayName --> SUMMARY
        try:
            summary = item.displayName
        except AttributeError:
            pass
        else:
            comp.add("summary").value = summary

        # body --> DESCRIPTION
        try:
            description = item.body
        except AttributeError:
            pass
        else:
            if description:
                comp.add("description").value = description

        # userReminder --> VALARM
        if Remindable.reminders.name not in filters:
            firstReminder = item.getUserReminder()
            if firstReminder is not None:
                if firstReminder.absoluteTime is not None:
                    value = firstReminder.absoluteTime
                else:
                    # @@@ For now, all relative reminders are relative to starttime
                    assert firstReminder.relativeTo == EventStamp.effectiveStartTime.name
                    value = firstReminder.delta
                comp.add("valarm").add("trigger").value = value

    def populateCustom(comp, item):
        # custom properties
        for name, value in item.icalendarProperties.iteritems():
            prop = comp.add(name)

            # for unrecognized properties, import stores strings, not
            # native types like datetimes.  So value should just be a
            # string, not a more complicated python data structure.  Don't
            # try to transform the value when serializing
            prop.isNative = False

            # encoding escapes characters like backslash and comma and
            # combines list values into a single string.  This was already
            # done when the icalendar was imported, so don't escape again
            prop.encoded = True

            prop.value = value

        for name, paramstring in item.icalendarParameters.iteritems():
            paramdict = comp.contents[name][0].params
            for paramlist in vobject.base.parseParams(paramstring):
                # parseParams gives a list of lists of parameters, with the
                # first element of each list being the name of the
                # parameter, followed by the parameter values, if any
                paramname = paramlist[0].upper()
                if paramname.lower() in parametersUnderstood:
                    # parameters understood by Chandler shouldn't be stored
                    # in icalendarParameters, but changes to which
                    # parameters Chandler understands can lead to spurious
                    # parameters, ignore them
                    continue
                paramvalues = paramdict.setdefault(paramname, [])
                paramvalues.extend(paramlist[1:])

    def populateEvent(comp, event):
        """Populate the given vobject vevent with data from event."""

        populateCommon(comp, event.itsItem)

        try:
            dtstartLine = comp.add("dtstart")

            # allDay-ness overrides anyTime-ness
            if event.anyTime and not event.allDay:
                dtstartLine.x_osaf_anytime_param = "TRUE"

            dtstartLine.value = makeDateTimeValue(event.startTime, event.anyTime or event.allDay)

        except AttributeError:
            comp.dtstart = []  # delete the dtstart that was added

        try:
            if not (
                event.duration == datetime.timedelta(0)
                or ((event.anyTime or event.allDay) and event.duration <= oneDay)
            ):
                dtendLine = comp.add("dtend")
                # convert Chandler's notion of allDay duration to iCalendar's
                if event.allDay:
                    dtendLine.value = event.endTime.date() + oneDay
                else:
                    if event.anyTime:
                        dtendLine.x_osaf_anytime_param = "TRUE"

                    # anyTime should be exported as allDay for non-Chandler apps
                    dtendLine.value = makeDateTimeValue(event.endTime, event.anyTime)

        except AttributeError:
            comp.dtend = []  # delete the dtend that was added

        if EventStamp.transparency.name not in filters:
            try:
                status = event.transparency.upper()
                # anytime events should be interpreted as not taking up time,
                # but all-day shouldn't
                if status == "FYI" or (not event.allDay and event.anyTime):
                    status = "CANCELLED"
                comp.add("status").value = status
            except AttributeError:
                pass

        try:
            comp.add("location").value = event.location.displayName
        except AttributeError:
            pass

        view = event.itsItem.itsView
        timestamp = datetime.datetime.utcnow()
        comp.add("dtstamp").value = timestamp.replace(tzinfo=view.tzinfo.UTC)

        if event.modificationFor is not None:
            recurrenceid = comp.add("recurrence-id")
            masterEvent = event.getMaster()
            allDay = masterEvent.allDay or masterEvent.anyTime

            recurrenceid.value = makeDateTimeValue(event.recurrenceID, allDay)

        # logic for serializing rrules needs to move to vobject
        try:  # hack, create RRULE line last, because it means running transformFromNative
            if event.getMaster() == event and event.rruleset is not None:
                # False because we don't want to ignore isCount for export
                # True because we don't want to use view.tzinfo.floating
                cal.vevent_list[-1].rruleset = event.createDateUtilFromRule(False, True, False)
        except AttributeError:
            logger.error("Failed to export RRULE for %s" % event.itsItem.itsUUID)
        # end of populateEvent function

        populateCustom(comp, event.itsItem)

    def populateModifications(event, cal):
        for modification in itertools.imap(EventStamp, event.modifications):
            for attr, val in modification.itsItem.iterModifiedAttributes():
                if attr in attributesUsedWhenExporting and attr not in filters:
                    populateEvent(cal.add("vevent"), modification)
                    break
        # end helper functions

    def populateTask(comp, task):
        """Populate the given vobject vtodo with data from task."""
        populateCommon(comp, task.itsItem)

        # @@@ [grant] Once we start writing out Event+Tasks as
        # VTODO, write out DUE (or maybe DTSTART) here.

        if Note._triageStatus.name not in filters:
            triageStatus = task.itsItem._triageStatus

            # VTODO STATUS mapping:
            # ---------------------
            #
            #  [ICalendar]            [Triage Enum]
            #  <no value>/IN-PROCESS    now  (needsReply=False)
            #  NEEDS-ACTION             now  (needsReply=True)
            #  COMPLETED                done
            #  CANCELLED                later

            if triageStatus == TriageEnum.now:
                if task.itsItem.needsReply:
                    comp.add("status").value = "needs-action"
                else:
                    comp.add("status").value = "in-process"
            elif triageStatus == TriageEnum.later:
                comp.add("status").value = "cancelled"
            else:
                comp.add("status").value = "completed"

        populateCustom(comp, task.itsItem)

    if cal is None:
        cal = vobject.iCalendar()
    for item in items:  # main loop
        try:
            # ignore any events that aren't masters
            #
            # Note: [grant]
            # At the moment, we allow Event-ness to take precedence over
            # Task-ness. So, we serialize Event+Task objects as VEVENTs.
            # Part of the reason for this is that recurring VTODOs aren't
            # so well-supported by other iCalendar clients. For RFC 2445
            # issues with VTODO+RRULE, see e.g.
            # <http://lists.osafoundation.org/pipermail/ietf-calsify/2006-August/001134.html>
            if has_stamp(item, EventStamp):
                event = EventStamp(item)
                if event.getMaster() == event:
                    populateEvent(cal.add("vevent"), event)
                populateModifications(event, cal)
            elif has_stamp(item, TaskStamp):
                populateTask(cal.add("vtodo"), TaskStamp(item))
        except:
            logger.exception("Exception while exporting %s" % item)
            continue

    return cal
コード例 #2
0
def itemsToVObject(view, items, cal=None, filters=None):
    """
    Iterate through items, add to cal, create a new vcalendar if needed.

    Consider only master events (then serialize all modifications).  For now,
    set all timezones to Pacific.

    """

    if filters is None:
        filters = () # we want filters to be iterable
    
    def makeDateTimeValue(dt, asDate=False):
        if asDate:
            return dt.date()
        elif dt.tzinfo == view.tzinfo.floating:
            return dt.replace(tzinfo=None)
        else:
            return dt

    
    def populateCommon(comp, item):
        """
        Populate the given vevent or vtodo vobject with values for
        attributes common to Events or Tasks).
        """
        
        if getattr(item, Note.icalUID.name, None) is None:
            item.icalUID = unicode(item.itsUUID)
        comp.add('uid').value = item.icalUID

        # displayName --> SUMMARY
        try:
            summary = item.displayName
        except AttributeError:
            pass
        else:
            comp.add('summary').value = summary
            
        # body --> DESCRIPTION
        try:
            description = item.body
        except AttributeError:
            pass
        else:
            if description:
                comp.add('description').value = description
                
        # userReminder --> VALARM
        if Remindable.reminders.name not in filters:
            firstReminder = item.getUserReminder()
            if firstReminder is not None:
                if firstReminder.absoluteTime is not None:
                    value = firstReminder.absoluteTime
                else:
                    # @@@ For now, all relative reminders are relative to starttime
                    assert firstReminder.relativeTo == EventStamp.effectiveStartTime.name
                    value = firstReminder.delta
                comp.add('valarm').add('trigger').value = value
                
    def populateCustom(comp, item):
        # custom properties
        for name, value in item.icalendarProperties.iteritems():
            prop = comp.add(name)

            # for unrecognized properties, import stores strings, not
            # native types like datetimes.  So value should just be a
            # string, not a more complicated python data structure.  Don't
            # try to transform the value when serializing
            prop.isNative = False
            
            # encoding escapes characters like backslash and comma and
            # combines list values into a single string.  This was already
            # done when the icalendar was imported, so don't escape again
            prop.encoded = True
            
            prop.value = value
                
        for name, paramstring in item.icalendarParameters.iteritems():
            paramdict = comp.contents[name][0].params
            for paramlist in vobject.base.parseParams(paramstring):
                # parseParams gives a list of lists of parameters, with the
                # first element of each list being the name of the
                # parameter, followed by the parameter values, if any
                paramname = paramlist[0].upper()
                if paramname.lower() in parametersUnderstood:
                    # parameters understood by Chandler shouldn't be stored
                    # in icalendarParameters, but changes to which
                    # parameters Chandler understands can lead to spurious
                    # parameters, ignore them
                    continue
                paramvalues = paramdict.setdefault(paramname, [])
                paramvalues.extend(paramlist[1:])
        
        

    
    def populateEvent(comp, event):
        """Populate the given vobject vevent with data from event."""
        
        populateCommon(comp, event.itsItem)
        
        try:
            dtstartLine = comp.add('dtstart')
            
            # allDay-ness overrides anyTime-ness
            if event.anyTime and not event.allDay:
                dtstartLine.x_osaf_anytime_param = 'TRUE'
                
            dtstartLine.value = makeDateTimeValue(event.startTime,
                                    event.anyTime or event.allDay)

        except AttributeError:
            comp.dtstart = [] # delete the dtstart that was added
        
        try:
            if not (event.duration == datetime.timedelta(0) or (
                    (event.anyTime or event.allDay) and 
                    event.duration <= oneDay)):
                dtendLine = comp.add('dtend')
                #convert Chandler's notion of allDay duration to iCalendar's
                if event.allDay:
                    dtendLine.value = event.endTime.date() + oneDay
                else:
                    if event.anyTime:
                        dtendLine.x_osaf_anytime_param = 'TRUE'

                    # anyTime should be exported as allDay for non-Chandler apps
                    dtendLine.value = makeDateTimeValue(event.endTime,
                                                        event.anyTime)

        except AttributeError:
            comp.dtend = [] # delete the dtend that was added
            

        if EventStamp.transparency.name not in filters:
            try:
                status = event.transparency.upper()
                # anytime events should be interpreted as not taking up time,
                # but all-day shouldn't
                if status == 'FYI' or (not event.allDay and event.anyTime):
                    status = 'CANCELLED'
                comp.add('status').value = status
            except AttributeError:
                pass

        try:
            comp.add('location').value = event.location.displayName
        except AttributeError:
            pass
        
        view = event.itsItem.itsView
        timestamp = datetime.datetime.utcnow()
        comp.add('dtstamp').value = timestamp.replace(tzinfo=view.tzinfo.UTC)

        if event.modificationFor is not None:
            recurrenceid = comp.add('recurrence-id')
            masterEvent = event.getMaster()
            allDay = masterEvent.allDay or masterEvent.anyTime
            
            recurrenceid.value = makeDateTimeValue(event.recurrenceID, allDay)
        
        # logic for serializing rrules needs to move to vobject
        try: # hack, create RRULE line last, because it means running transformFromNative
            if event.getMaster() == event and event.rruleset is not None:
                # False because we don't want to ignore isCount for export
                # True because we don't want to use view.tzinfo.floating
                cal.vevent_list[-1].rruleset = event.createDateUtilFromRule(False, True, False)
        except AttributeError:
            logger.error('Failed to export RRULE for %s' % event.itsItem.itsUUID)
        # end of populateEvent function
        
        populateCustom(comp, event.itsItem)


    def populateModifications(event, cal):
        for modification in itertools.imap(EventStamp, event.modifications):
            for attr, val in modification.itsItem.iterModifiedAttributes():
                if attr in attributesUsedWhenExporting and attr not in filters:
                    populateEvent(cal.add('vevent'), modification)
                    break
        #end helper functions
        
    def populateTask(comp, task):
        """Populate the given vobject vtodo with data from task."""
        populateCommon(comp, task.itsItem)

        # @@@ [grant] Once we start writing out Event+Tasks as
        # VTODO, write out DUE (or maybe DTSTART) here.

        if Note._triageStatus.name not in filters:
            triageStatus = task.itsItem._triageStatus
            
            # VTODO STATUS mapping:
            # ---------------------
            #
            #  [ICalendar]            [Triage Enum]
            #  <no value>/IN-PROCESS    now  (needsReply=False)
            #  NEEDS-ACTION             now  (needsReply=True)
            #  COMPLETED                done
            #  CANCELLED                later
            
            if triageStatus == TriageEnum.now:
                if task.itsItem.needsReply:
                    comp.add('status').value = 'needs-action'
                else:
                    comp.add('status').value = 'in-process'
            elif triageStatus == TriageEnum.later:
                comp.add('status').value = 'cancelled'
            else:
                comp.add('status').value = 'completed'
                
        populateCustom(comp, task.itsItem)

    if cal is None:
        cal = vobject.iCalendar()
    for item in items: # main loop
        try:
            # ignore any events that aren't masters
            #
            # Note: [grant]
            # At the moment, we allow Event-ness to take precedence over
            # Task-ness. So, we serialize Event+Task objects as VEVENTs.
            # Part of the reason for this is that recurring VTODOs aren't
            # so well-supported by other iCalendar clients. For RFC 2445
            # issues with VTODO+RRULE, see e.g.
            # <http://lists.osafoundation.org/pipermail/ietf-calsify/2006-August/001134.html>
            if has_stamp(item, EventStamp):
                event = EventStamp(item)
                if event.getMaster() == event:
                  populateEvent(cal.add('vevent'), event)
                populateModifications(event, cal)
            elif has_stamp(item, TaskStamp):
                  populateTask(cal.add('vtodo'), TaskStamp(item))
        except:
            logger.exception("Exception while exporting %s" % item)
            continue

    return cal
コード例 #3
0
ファイル: ICalendar.py プロジェクト: vogth/chandler
def _importOneVObject(vobj, filters, coerceTzinfo, promptForTimezone, newItemParent):
    view = newItemParent.itsView

    itemIsNew = False
    newStamps = []

    # by default, we'll create a new item, not change existing items
    itemChangeCallback = None

    # store up all attributes in a dictionary ...
    changesDict = {}

    # ... and define a shorthand for updating it
    def change(attr, value):
        changesDict[attr.name] = value

    # rruleset and userReminderInterval/userReminderTime must
    # be set last....
    changeLast = []

    # values that apply to VEVENT and VTODO ...
    summary = vobj.getChildValue("summary", u"")
    description = vobj.getChildValue("description")
    status = vobj.getChildValue("status", "").lower()
    duration = vobj.getChildValue("duration")
    uid = vobj.getChildValue("uid")
    rruleset = vobj.rruleset
    recurrenceID = vobj.getChildValue("recurrence_id")  # ... uh, sorta
    completed = vobj.getChildValue("completed")

    def convertDatetime(dt):
        # coerce timezones based on coerceTzinfo
        if coerceTzinfo is not None:
            dt = TimeZone.coerceTimeZone(view, dt, coerceTzinfo)

        # ... and make sure we return something with an ICUtzinfo
        return convertToICUtzinfo(view, dt)

    reminderDelta = None
    reminderAbsoluteTime = None

    try:
        reminderValue = vobj.valarm.trigger.value
    except AttributeError:
        pass
    else:
        if type(reminderValue) is datetime.datetime:
            reminderAbsoluteTime = convertDatetime(reminderValue)
        else:
            assert type(reminderValue) is datetime.timedelta
            reminderDelta = reminderValue

    if vobj.name == "VEVENT":

        if DEBUG:
            logger.debug("got VEVENT %s", vobj)

        newStamps.append(EventStamp)
        dtstart = vobj.getChildValue("dtstart")

        if status in ("confirmed", "tentative"):
            pass
        elif status == "cancelled":  # Chandler doesn't have CANCELLED
            status = "fyi"
        else:
            status = "confirmed"

        if EventStamp.transparency.name not in filters:
            change(EventStamp.transparency, status)

        location = vobj.getChildValue("location")
        if location:
            change(EventStamp.location, Calendar.Location.getLocation(view, location))

    elif vobj.name == "VTODO":

        if DEBUG:
            logger.debug("got VEVENT %s", vobj)

        newStamps.append(TaskStamp)

        # VTODO with a DUE ==> EventTask
        due = vobj.getChildValue("due")
        if due is not None:
            newStamps.append(EventStamp)
            dtstart = due

    else:
        assert False, "vobj %s should always be VEVENT or VTODO" % (vobj,)

    # Save changes applicable to both events & tasks ....

    # SUMMARY <-> {EventStamp,TaskStamp}.summary
    if summary is not None:
        change(newStamps[0].summary, summary)

    # DESCRIPTION <-> body
    if description is not None:
        change(Note.body, description)

    # Absolute time reminders
    if reminderAbsoluteTime is not None and Remindable.reminders.name not in filters:
        changeLast.append(lambda item: setattr(item, Remindable.userReminderTime.name, reminderAbsoluteTime))
    # Custom properties/parameters
    ignoredProperties = {}
    ignoredParameters = {}
    for line in vobj.lines():
        name = line.name.lower()
        if name not in attributesUnderstood:
            line.transformFromNative()
            if not line.encoded and line.behavior:
                line.behavior.encode(line)
            ignoredProperties[name] = line.value
        params = u""
        for key, paramvals in line.params.iteritems():
            if key.lower() not in parametersUnderstood:
                vals = map(vobject.base.dquoteEscape, paramvals)
                params += ";" + key + "=" + ",".join(vals)
        if len(params) > 0:
            ignoredParameters[name] = params

    change(Note.icalendarProperties, ignoredProperties)
    change(Note.icalendarParameters, ignoredParameters)

    # See if we have a corresponding item already
    item = utility.findUID(view, uid)

    if item is not None:
        if DEBUG:
            logger.debug("matched UID %s with %s", uid, item)
    else:
        try:
            # See if uid is a valid repository UUID, if so we'll
            # go ahead and use it for the new item's UUID.
            uuid = UUID(uid)
        except ValueError:
            # Not in valid UUID format, so hash the icaluid to
            # generate a 16-byte string we can use for uuid
            uuid = UUID(md5.new(uid).digest())
            logger.info("Converted icalUID '%s' to UUID '%s'", uid, str(uuid))

        # If there is already an item with this UUID, use it,
        # otherwise we'll create one later
        item = view.findUUID(uuid)

        if item is not None:
            item.icalUID = unicode(uuid)

    if EventStamp in newStamps:
        dtend = vobj.getChildValue("dtend")

        isDate = type(dtstart) == date

        # RFC2445 allows VEVENTs without DTSTART, but it's hard to guess
        # what that would mean, so we won't catch an exception if there's no
        # dtstart.
        anyTime = getattr(dtstart, "x_osaf_anytime_param", None) == "TRUE"

        if duration is None:

            def getDifference(left, right):
                leftIsDate = type(left) == date
                rightIsDate = type(right) == date

                if leftIsDate:
                    if rightIsDate:
                        return left - right
                    else:
                        left = TimeZone.forceToDateTime(view, left)

                elif rightIsDate:
                    right = TimeZone.forceToDateTime(view, right)

                return makeNaiveteMatch(view, left, right.tzinfo) - right

            if dtend is not None:
                duration = getDifference(dtend, dtstart)
            elif anyTime or isDate:
                duration = oneDay
            else:
                duration = datetime.timedelta(0)

        if isDate:
            dtstart = TimeZone.forceToDateTime(view, dtstart)
            # convert to Chandler's notion of all day duration
            duration -= oneDay
        elif dtstart.tzinfo is not None and promptForTimezone:
            # got a timezoned event, prompt (non-modally) to turn on
            # timezones
            app = wx.GetApp()
            if app is not None:

                def ShowTimezoneDialogCallback():
                    ShowTurnOnTimezonesDialog(view=app.UIRepositoryView)

                app.PostAsyncEvent(ShowTimezoneDialogCallback)
            promptForTimezone = False

        dtstart = convertDatetime(dtstart)
        tzinfo = dtstart.tzinfo

        if anyTime:
            change(EventStamp.anyTime, True)
            change(EventStamp.allDay, False)
        elif isDate:
            # allDay events should have anyTime True, so if the user
            # unselects allDay, the time isn't set to midnight
            change(EventStamp.anyTime, True)
            change(EventStamp.allDay, True)
        else:
            change(EventStamp.allDay, False)
            change(EventStamp.anyTime, False)

        change(EventStamp.startTime, dtstart)
        change(EventStamp.duration, duration)

        if (reminderDelta is not None) and (Remindable.reminders.name not in filters):
            changeLast.append(lambda item: setattr(item, EventStamp.userReminderInterval.name, reminderDelta))
        if item is not None:
            event = EventStamp(item)

            if recurrenceID:
                if type(recurrenceID) == date:
                    recurrenceID = datetime.datetime.combine(recurrenceID, time(tzinfo=tzinfo))
                else:
                    recurrenceID = convertToICUtzinfo(view, makeNaiveteMatch(view, recurrenceID, tzinfo))

                masterEvent = EventStamp(item)
                event = masterEvent.getRecurrenceID(recurrenceID)
                if event is None and hasattr(masterEvent, "startTime"):
                    # Some calendars, notably Oracle, serialize
                    # recurrence-id as UTC, which wreaks havoc with
                    # noTZ mode. So move recurrenceID to the same tzinfo
                    # as the master's dtstart, bug 6830
                    masterTzinfo = masterEvent.startTime.tzinfo
                    tweakedID = recurrenceID.astimezone(masterTzinfo)
                    event = masterEvent.getRecurrenceID(tweakedID)
                if event is None:
                    # just in case the previous didn't work
                    tweakedID = recurrenceID.astimezone(tzinfo)
                    event = masterEvent.getRecurrenceID(tweakedID)

                if event is None:
                    # our recurrenceID didn't match an item we know
                    # about.  This may be because the item is created
                    # by a later modification, a case we're not dealing
                    # with.  For now, just skip it.
                    logger.info("RECURRENCE-ID '%s' didn't match rule.", recurrenceID)
                    return (None, None, promptForTimezone)

                item = event.itsItem
                recurrenceLine = vobj.contents["recurrence-id"][0]
                range = recurrenceLine.params.get("RANGE", ["THIS"])[0]
                if range == "THISANDPRIOR":
                    # ignore THISANDPRIOR changes for now
                    logger.info("RECURRENCE-ID RANGE of THISANDPRIOR " "not supported")
                    return (None, None, promptForTimezone)
                elif range == "THIS":
                    itemChangeCallback = event.changeThis
                    # check if this is a modification to a master event
                    # if so, avoid changing the master's UUID when
                    # creating a modification
                    if event.getMaster() == event:
                        mod = event._cloneEvent()
                        mod.modificationFor = mod.occurrenceFor = event.itsItem
                        if item.hasLocalAttributeValue(EventStamp.occurrenceFor.name):
                            del event.occurrenceFor
                        event = mod
                        item = event.itsItem

                elif range == "THISANDFUTURE":
                    itemChangeCallback = event.changeThisAndFuture
                else:
                    logger.info("RECURRENCE-ID RANGE not recognized. " "RANGE = %s" % range)
                    return (None, None, promptForTimezone)
            else:
                if event.rruleset is not None:
                    # re-creating a recurring item from scratch, delete
                    # old recurrence information
                    # item might not be the master, though, so
                    # get the master, or eventItem will be a deleted
                    # event
                    event = event.getMaster()
                    item = event.itsItem
                    # delete modifications the master has, to avoid
                    # changing the master to a modification with a
                    # different UUID
                    for mod in itertools.imap(EventStamp, event.modifications):
                        # [Bug 7019]
                        # We need to del these because, in the deferred
                        # delete case, we would have deferred items
                        # living on, in the manner of the undead, in
                        # master.modifications (and occurrences). This
                        # would ultimately cause .getNextOccurrence()
                        # to terminate prematurely.
                        del mod.modificationFor
                        del mod.occurrenceFor
                        mod.itsItem.delete()

                    event.removeRecurrence()

                itemChangeCallback = event.changeThis

            if DEBUG:
                logger.debug("Changing event: %s" % str(event))
            assert itemChangeCallback is not None, "Must set itemChangeCallback for EventStamp imports"

        if rruleset is not None:
            # fix for Bug 6994, exdate and rdate timezones need to be
            # converted to ICUtzinfo instances
            for typ in "_rdate", "_exdate":
                setattr(rruleset, typ, [convertDatetime(d) for d in getattr(rruleset, typ, [])])
            ruleSetItem = RecurrenceRuleSet(None, itsView=view)
            ruleSetItem.setRuleFromDateUtil(rruleset)
            changeLast.append(lambda item: setattr(item, EventStamp.rruleset.name, ruleSetItem))

    if TaskStamp in newStamps:

        if Note._triageStatus.name not in filters:
            # Translate status from iCalendar to TaskStamp/ContentItem
            triageStatus = TriageEnum.now

            if status == "completed":
                triageStatus = TriageEnum.done
            elif status == "needs-action":
                change(Note.needsReply, True)
            elif status in ("", "in-process"):
                change(Note.needsReply, False)
            elif status == "cancelled":
                triageStatus = TriageEnum.later

            # @@@ Jeffrey: This may not be right...
            # Set triageStatus and triageStatusChanged together.
            if completed is not None:
                if type(completed) == date:
                    completed = TimeZone.forceToDateTime(view, completed)
            changeLast.append(lambda item: item.setTriageStatus(triageStatus, when=completed))

    itemIsNew = item is None

    if itemIsNew:

        # create a new item
        change(Note.icalUID, uid)

        kind = Note.getKind(view)
        item = kind.instantiateItem(None, newItemParent, uuid, withInitialValues=True)
        itemChangeCallback = item.__setattr__
    else:
        if itemChangeCallback is None:
            itemChangeCallback = item.__setattr__

        # update an existing item
        if rruleset is None and recurrenceID is None and EventStamp(item).rruleset is not None:
            # no recurrenceId or rruleset, but the existing item
            # may have recurrence, so delete it
            EventStamp(item).removeRecurrence()

    for attr, val in changesDict.iteritems():

        # Only change a datetime if it's really different
        # from what the item already has:
        if type(val) is datetime.datetime:
            oldValue = getattr(item, attr, None)
            if oldValue is not None and oldValue == val and oldValue.tzinfo == val.tzinfo:
                continue

        itemChangeCallback(attr, val)

    # ... make sure the stamps are right
    for stamp in EventStamp, TaskStamp:
        if not stamp in newStamps:
            if has_stamp(item, stamp):
                stamp(item).remove()
        else:
            if not has_stamp(item, stamp):
                stamp(item).add()

    # ... and do the final set of changes
    for cb in changeLast:
        cb(item)

    return item, itemIsNew, promptForTimezone
コード例 #4
0
def _importOneVObject(vobj, filters, coerceTzinfo, promptForTimezone, 
                      newItemParent):
    view = newItemParent.itsView
    
    itemIsNew = False
    newStamps = []

    # by default, we'll create a new item, not change existing items
    itemChangeCallback = None

    # store up all attributes in a dictionary ...
    changesDict = {}

    # ... and define a shorthand for updating it
    def change(attr, value):
        changesDict[attr.name] = value
        
    # rruleset and userReminderInterval/userReminderTime must
    # be set last....
    changeLast = []

    # values that apply to VEVENT and VTODO ...
    summary     = vobj.getChildValue('summary', u"")
    description = vobj.getChildValue('description')
    status      = vobj.getChildValue('status', "").lower()
    duration    = vobj.getChildValue('duration')
    uid         = vobj.getChildValue('uid')
    rruleset    = vobj.rruleset
    recurrenceID = vobj.getChildValue('recurrence_id') # ... uh, sorta
    completed = vobj.getChildValue('completed')


    def convertDatetime(dt):
        # coerce timezones based on coerceTzinfo
        if coerceTzinfo is not None:
            dt = TimeZone.coerceTimeZone(view, dt, coerceTzinfo)

        # ... and make sure we return something with an ICUtzinfo
        return convertToICUtzinfo(view, dt)

    reminderDelta = None
    reminderAbsoluteTime = None

    try:
        reminderValue = vobj.valarm.trigger.value
    except AttributeError:
        pass
    else:
        if type(reminderValue) is datetime.datetime:
            reminderAbsoluteTime = convertDatetime(reminderValue)
        else:
            assert type(reminderValue) is datetime.timedelta
            reminderDelta = reminderValue
            

    if vobj.name == "VEVENT":

        if DEBUG: logger.debug("got VEVENT %s", vobj)
        
        newStamps.append(EventStamp)
        dtstart = vobj.getChildValue('dtstart')

        if status in ('confirmed', 'tentative'):
            pass
        elif status == 'cancelled': #Chandler doesn't have CANCELLED
            status = 'fyi'
        else:
            status = 'confirmed'

        if EventStamp.transparency.name not in filters:
            change(EventStamp.transparency, status)

        location = vobj.getChildValue('location')
        if location:
            change(EventStamp.location,
                   Calendar.Location.getLocation(view, location))
        
    elif vobj.name == "VTODO":

        if DEBUG: logger.debug("got VEVENT %s", vobj)
        
        newStamps.append(TaskStamp)
        
        # VTODO with a DUE ==> EventTask
        due = vobj.getChildValue('due')
        if due is not None:
            newStamps.append(EventStamp)
            dtstart = due
            
    else:
        assert False, "vobj %s should always be VEVENT or VTODO" % (
                            vobj,)


    # Save changes applicable to both events & tasks ....

    # SUMMARY <-> {EventStamp,TaskStamp}.summary
    if summary is not None:
        change(newStamps[0].summary, summary)

    # DESCRIPTION <-> body  
    if description is not None:
        change(Note.body, description)
        
    # Absolute time reminders
    if (reminderAbsoluteTime is not None and
        Remindable.reminders.name not in filters):
        changeLast.append(lambda item: setattr(item,
                                               Remindable.userReminderTime.name, 
                                               reminderAbsoluteTime))
    # Custom properties/parameters                                           
    ignoredProperties = {}
    ignoredParameters = {}
    for line in vobj.lines():
        name = line.name.lower()
        if name not in attributesUnderstood:
            line.transformFromNative()
            if not line.encoded and line.behavior:
                line.behavior.encode(line)
            ignoredProperties[name] = line.value
        params=u''
        for key, paramvals in line.params.iteritems():
            if key.lower() not in parametersUnderstood:
                vals = map(vobject.base.dquoteEscape, paramvals)
                params += ';' + key + '=' + ','.join(vals)
        if len(params) > 0:
            ignoredParameters[name] = params

    change(Note.icalendarProperties, ignoredProperties)
    change(Note.icalendarParameters, ignoredParameters)


    # See if we have a corresponding item already
    item = utility.findUID(view, uid)

    if item is not None:
        if DEBUG: logger.debug("matched UID %s with %s", uid, item)
    else:
        try:
            # See if uid is a valid repository UUID, if so we'll
            # go ahead and use it for the new item's UUID.
            uuid = UUID(uid)
        except ValueError:
            # Not in valid UUID format, so hash the icaluid to
            # generate a 16-byte string we can use for uuid
            uuid = UUID(md5.new(uid).digest())
            logger.info("Converted icalUID '%s' to UUID '%s'", uid,
                str(uuid))

        # If there is already an item with this UUID, use it,
        # otherwise we'll create one later
        item = view.findUUID(uuid)
            
        if item is not None:
            item.icalUID = unicode(uuid)

            
    if EventStamp in newStamps:
        dtend = vobj.getChildValue('dtend')

        isDate = type(dtstart) == date

        # RFC2445 allows VEVENTs without DTSTART, but it's hard to guess
        # what that would mean, so we won't catch an exception if there's no
        # dtstart.
        anyTime = (getattr(dtstart, 'x_osaf_anytime_param', None)
                      == 'TRUE')
        
        if duration is None:
        
            def getDifference(left, right):
                leftIsDate = (type(left) == date)
                rightIsDate = (type(right) == date)
                
                if leftIsDate:
                    if rightIsDate:
                        return left - right
                    else:
                        left = TimeZone.forceToDateTime(view, left)
                        
                elif rightIsDate:
                    right = TimeZone.forceToDateTime(view, right)

                return makeNaiveteMatch(view, left, right.tzinfo) - right
                
            if dtend is not None:
                duration = getDifference(dtend, dtstart)
            elif anyTime or isDate:
                duration = oneDay
            else:
                duration = datetime.timedelta(0)

        if isDate:
            dtstart = TimeZone.forceToDateTime(view, dtstart)
            # convert to Chandler's notion of all day duration
            duration -= oneDay
        elif dtstart.tzinfo is not None and promptForTimezone:
            # got a timezoned event, prompt (non-modally) to turn on
            # timezones
            app = wx.GetApp()
            if app is not None:
                def ShowTimezoneDialogCallback():
                    ShowTurnOnTimezonesDialog(view=app.UIRepositoryView)
                app.PostAsyncEvent(ShowTimezoneDialogCallback)
            promptForTimezone = False

        dtstart = convertDatetime(dtstart)
        tzinfo = dtstart.tzinfo

        if anyTime:
            change(EventStamp.anyTime, True)
            change(EventStamp.allDay, False)
        elif isDate:
            # allDay events should have anyTime True, so if the user
            # unselects allDay, the time isn't set to midnight
            change(EventStamp.anyTime, True)
            change(EventStamp.allDay, True)
        else:
            change(EventStamp.allDay, False)
            change(EventStamp.anyTime, False)

        change(EventStamp.startTime, dtstart)
        change(EventStamp.duration, duration)

        if ((reminderDelta is not None) and
            (Remindable.reminders.name not in filters)):
                changeLast.append(
                    lambda item:setattr(item,
                                        EventStamp.userReminderInterval.name, 
                                        reminderDelta))
        if item is not None:
            event = EventStamp(item)

            if recurrenceID:
                if type(recurrenceID) == date:
                    recurrenceID = datetime.datetime.combine(
                                                recurrenceID,
                                                time(tzinfo=tzinfo))
                else:
                    recurrenceID = convertToICUtzinfo(view, 
                                       makeNaiveteMatch(view, recurrenceID,
                                       tzinfo))
                
                masterEvent = EventStamp(item)    
                event = masterEvent.getRecurrenceID(recurrenceID)
                if event is None and hasattr(masterEvent, 'startTime'):
                    # Some calendars, notably Oracle, serialize
                    # recurrence-id as UTC, which wreaks havoc with 
                    # noTZ mode. So move recurrenceID to the same tzinfo
                    # as the master's dtstart, bug 6830
                    masterTzinfo = masterEvent.startTime.tzinfo
                    tweakedID = recurrenceID.astimezone(masterTzinfo)
                    event = masterEvent.getRecurrenceID(tweakedID)
                if event is None:
                    # just in case the previous didn't work
                    tweakedID = recurrenceID.astimezone(tzinfo)
                    event = masterEvent.getRecurrenceID(tweakedID)
                    
                if event is None:
                    # our recurrenceID didn't match an item we know
                    # about.  This may be because the item is created
                    # by a later modification, a case we're not dealing
                    # with.  For now, just skip it.
                    logger.info("RECURRENCE-ID '%s' didn't match rule.",
                                recurrenceID)
                    return (None, None, promptForTimezone)

                item = event.itsItem
                recurrenceLine = vobj.contents['recurrence-id'][0]
                range = recurrenceLine.params.get('RANGE', ['THIS'])[0]
                if range == 'THISANDPRIOR':
                    # ignore THISANDPRIOR changes for now
                    logger.info("RECURRENCE-ID RANGE of THISANDPRIOR " \
                                "not supported")
                    return (None, None, promptForTimezone)
                elif range == 'THIS':
                    itemChangeCallback = event.changeThis
                    # check if this is a modification to a master event
                    # if so, avoid changing the master's UUID when
                    # creating a modification
                    if event.getMaster() == event:
                        mod = event._cloneEvent()
                        mod.modificationFor = mod.occurrenceFor = event.itsItem
                        if item.hasLocalAttributeValue(
                                        EventStamp.occurrenceFor.name):
                            del event.occurrenceFor
                        event = mod
                        item = event.itsItem
                    
                elif range == 'THISANDFUTURE':
                    itemChangeCallback = event.changeThisAndFuture
                else:
                    logger.info("RECURRENCE-ID RANGE not recognized. " \
                                "RANGE = %s" % range)
                    return (None, None, promptForTimezone)
            else:
                if event.rruleset is not None:
                    # re-creating a recurring item from scratch, delete 
                    # old recurrence information
                    # item might not be the master, though, so
                    # get the master, or eventItem will be a deleted
                    # event
                    event = event.getMaster()
                    item = event.itsItem
                    # delete modifications the master has, to avoid
                    # changing the master to a modification with a
                    # different UUID
                    for mod in itertools.imap(EventStamp, event.modifications):
                        # [Bug 7019]
                        # We need to del these because, in the deferred
                        # delete case, we would have deferred items
                        # living on, in the manner of the undead, in
                        # master.modifications (and occurrences). This
                        # would ultimately cause .getNextOccurrence()
                        # to terminate prematurely.
                        del mod.modificationFor
                        del mod.occurrenceFor
                        mod.itsItem.delete()

                    event.removeRecurrence()
                    
                itemChangeCallback = event.changeThis

            if DEBUG: logger.debug("Changing event: %s" % str(event))
            assert itemChangeCallback is not None, \
                   "Must set itemChangeCallback for EventStamp imports"
                

        if rruleset is not None:
            # fix for Bug 6994, exdate and rdate timezones need to be
            # converted to ICUtzinfo instances
            for typ in '_rdate', '_exdate':
                setattr(rruleset, typ, [convertDatetime(d) for d in
                                        getattr(rruleset, typ, [])  ])
            ruleSetItem = RecurrenceRuleSet(None, itsView=view)
            ruleSetItem.setRuleFromDateUtil(rruleset)
            changeLast.append(lambda item: setattr(item,
                                                   EventStamp.rruleset.name,
                                                   ruleSetItem))
        
    if TaskStamp in newStamps:
        
        if Note._triageStatus.name not in filters:
            # Translate status from iCalendar to TaskStamp/ContentItem
            triageStatus=TriageEnum.now
            
            if status == "completed":
                triageStatus = TriageEnum.done
            elif status == "needs-action":
                change(Note.needsReply, True)
            elif status in ("", "in-process"):
                change(Note.needsReply, False)
            elif status == "cancelled":
                triageStatus = TriageEnum.later

            # @@@ Jeffrey: This may not be right...
            # Set triageStatus and triageStatusChanged together.
            if completed is not None:
                if type(completed) == date:
                    completed = TimeZone.forceToDateTime(view, completed)
            changeLast.append(lambda item: item.setTriageStatus(triageStatus, 
                                                                when=completed))
            

    itemIsNew = (item is None)
            
    if itemIsNew:

        # create a new item
        change(Note.icalUID, uid)

        kind = Note.getKind(view)
        item = kind.instantiateItem(None, newItemParent, uuid,
                                    withInitialValues=True)
        itemChangeCallback = item.__setattr__
    else:
        if itemChangeCallback is None:
            itemChangeCallback = item.__setattr__
        
        # update an existing item
        if (rruleset is None and recurrenceID is None
           and EventStamp(item).rruleset is not None):
            # no recurrenceId or rruleset, but the existing item
            # may have recurrence, so delete it
            EventStamp(item).removeRecurrence()

    for attr, val in changesDict.iteritems():
    
        # Only change a datetime if it's really different
        # from what the item already has:
        if type(val) is datetime.datetime:
             oldValue = getattr(item, attr, None)
             if (oldValue is not None and 
                 oldValue == val and
                 oldValue.tzinfo == val.tzinfo):
                continue
    
        itemChangeCallback(attr, val)

    # ... make sure the stamps are right
    for stamp in EventStamp, TaskStamp:
        if not stamp in newStamps:
            if has_stamp(item, stamp):
                stamp(item).remove()
        else:
            if not has_stamp(item, stamp):
                stamp(item).add()

    # ... and do the final set of changes
    for cb in changeLast:
        cb(item)
        
            
    return item, itemIsNew, promptForTimezone