Python models.get_recipient函数代码示例

    def by_pm_with(self, query, operand, maybe_negate):
        # type: (Query, str, ConditionTransform) -> Query
        if ',' in operand:
            # Huddle
            try:
                emails = [e.strip() for e in operand.split(',')]
                recipient = recipient_for_emails(emails, False,
                                                 self.user_profile, self.user_profile)
            except ValidationError:
                raise BadNarrowOperator('unknown recipient ' + operand)
            cond = column("recipient_id") == recipient.id
            return query.where(maybe_negate(cond))
        else:
            # Personal message
            self_recipient = get_recipient(Recipient.PERSONAL, type_id=self.user_profile.id)
            if operand == self.user_profile.email:
                # Personals with self
                cond = and_(column("sender_id") == self.user_profile.id,
                            column("recipient_id") == self_recipient.id)
                return query.where(maybe_negate(cond))

            # Personals with other user; include both directions.
            try:
                narrow_profile = get_user_profile_by_email(operand)
            except UserProfile.DoesNotExist:
                raise BadNarrowOperator('unknown user ' + operand)

            narrow_recipient = get_recipient(Recipient.PERSONAL, narrow_profile.id)
            cond = or_(and_(column("sender_id") == narrow_profile.id,
                            column("recipient_id") == self_recipient.id),
                       and_(column("sender_id") == self.user_profile.id,
                            column("recipient_id") == narrow_recipient.id))
            return query.where(maybe_negate(cond))

    def by_stream(self, query, operand, maybe_negate):
        # type: (Query, str, ConditionTransform) -> Query
        stream = get_stream(operand, self.user_profile.realm)
        if stream is None:
            raise BadNarrowOperator('unknown stream ' + operand)

        if self.user_profile.realm.is_zephyr_mirror_realm:
            # MIT users expect narrowing to "social" to also show messages to /^(un)*social(.d)*$/
            # (unsocial, ununsocial, social.d, etc)
            m = re.search(r'^(?:un)*(.+?)(?:\.d)*$', stream.name, re.IGNORECASE)
            # Since the regex has a `.+` in it and "" is invalid as a
            # stream name, this will always match
            assert(m is not None)
            base_stream_name = m.group(1)

            matching_streams = get_active_streams(self.user_profile.realm).filter(
                name__iregex=r'^(un)*%s(\.d)*$' % (self._pg_re_escape(base_stream_name),))
            matching_stream_ids = [matching_stream.id for matching_stream in matching_streams]
            recipients_map = bulk_get_recipients(Recipient.STREAM, matching_stream_ids)
            cond = column("recipient_id").in_([recipient.id for recipient in recipients_map.values()])
            return query.where(maybe_negate(cond))

        recipient = get_recipient(Recipient.STREAM, type_id=stream.id)
        cond = column("recipient_id") == recipient.id
        return query.where(maybe_negate(cond))

def access_stream_common(user_profile, stream, error):
    # type: (UserProfile, Stream, Text) -> Tuple[Recipient, Subscription]
    """Common function for backend code where the target use attempts to
    access the target stream, returning all the data fetched along the
    way.  If that user does not have permission to access that stream,
    we throw an exception.  A design goal is that the error message is
    the same for streams you can't access and streams that don't exist."""

    # First, we don't allow any access to streams in other realms.
    if stream.realm_id != user_profile.realm_id:
        raise JsonableError(error)

    recipient = get_recipient(Recipient.STREAM, stream.id)

    try:
        sub = Subscription.objects.get(user_profile=user_profile,
                                       recipient=recipient,
                                       active=True)
    except Subscription.DoesNotExist:
        sub = None

    # If the stream is in your realm and public, you can access it.
    if stream.is_public():
        return (recipient, sub)

    # Or if you are subscribed to the stream, you can access it.
    if sub is not None:
        return (recipient, sub)

    # Otherwise it is a private stream and you're not on it, so throw
    # an error.
    raise JsonableError(error)

def create_missed_message_address(user_profile, message):
    # type: (UserProfile, Message) -> text_type
    if message.recipient.type == Recipient.PERSONAL:
        # We need to reply to the sender so look up their personal recipient_id
        recipient_id = get_recipient(Recipient.PERSONAL, message.sender_id).id
    else:
        recipient_id = message.recipient_id

    data = {
        'user_profile_id': user_profile.id,
        'recipient_id': recipient_id,
        'subject': message.subject,
    }

    while True:
        token = generate_random_token(32)
        key = missed_message_redis_key(token)
        if redis_client.hsetnx(key, 'uses_left', 1):
            break

    with redis_client.pipeline() as pipeline:
        pipeline.hmset(key, data)
        pipeline.expire(key, 60 * 60 * 24 * 5)
        pipeline.execute()

    address = u'mm' + token
    return settings.EMAIL_GATEWAY_PATTERN % (address,)

def create_missed_message_address(user_profile, message):
    # type: (UserProfile, Message) -> text_type
    if settings.EMAIL_GATEWAY_PATTERN == "":
        logging.warning("EMAIL_GATEWAY_PATTERN is an empty string, using " "NOREPLY_EMAIL_ADDRESS in the 'from' field.")
        return settings.NOREPLY_EMAIL_ADDRESS

    if message.recipient.type == Recipient.PERSONAL:
        # We need to reply to the sender so look up their personal recipient_id
        recipient_id = get_recipient(Recipient.PERSONAL, message.sender_id).id
    else:
        recipient_id = message.recipient_id

    data = {"user_profile_id": user_profile.id, "recipient_id": recipient_id, "subject": message.subject}

    while True:
        token = generate_random_token(32)
        key = missed_message_redis_key(token)
        if redis_client.hsetnx(key, "uses_left", 1):
            break

    with redis_client.pipeline() as pipeline:
        pipeline.hmset(key, data)
        pipeline.expire(key, 60 * 60 * 24 * 5)
        pipeline.execute()

    address = u"mm" + token
    return settings.EMAIL_GATEWAY_PATTERN % (address,)

def get_topics_backend(request, user_profile,
                       stream_id=REQ(converter=to_non_negative_int)):
    # type: (HttpRequest, UserProfile, int) -> HttpResponse

    try:
        stream = Stream.objects.get(pk=stream_id)
    except Stream.DoesNotExist:
        return json_error(_("Invalid stream id"))

    if stream.realm_id != user_profile.realm_id:
        return json_error(_("Invalid stream id"))

    recipient = get_recipient(Recipient.STREAM, stream.id)

    if not stream.is_public():
        if not is_active_subscriber(user_profile=user_profile,
                                    recipient=recipient):
            return json_error(_("Invalid stream id"))

    result = get_topic_history_for_stream(
        user_profile=user_profile,
        recipient=recipient,
    )

    # Our data structure here is a list of tuples of
    # (topic name, unread count), and it's reverse chronological,
    # so the most recent topic is the first element of the list.
    return json_success(dict(topics=result))

    def handle(self, *args, **options):
        # type: (*Any, **str) -> None
        realm = self.get_realm(options)
        stream_to_keep = get_stream(options["stream_to_keep"], realm)
        stream_to_destroy = get_stream(options["stream_to_destroy"], realm)

        recipient_to_destroy = get_recipient(Recipient.STREAM, stream_to_destroy.id)
        recipient_to_keep = get_recipient(Recipient.STREAM, stream_to_keep.id)

        # The high-level approach here is to move all the messages to
        # the surviving stream, deactivate all the subscriptions on
        # the stream to be removed and deactivate the stream, and add
        # new subscriptions to the stream to keep for any users who
        # were only on the now-deactivated stream.

        # Move the messages, and delete the old copies from caches.
        message_ids_to_clear = list(Message.objects.filter(
            recipient=recipient_to_destroy).values_list("id", flat=True))
        count = Message.objects.filter(recipient=recipient_to_destroy).update(recipient=recipient_to_keep)
        print("Moved %s messages" % (count,))
        bulk_delete_cache_keys(message_ids_to_clear)

        # Move the Subscription objects.  This algorithm doesn't
        # preserve any stream settings/colors/etc. from the stream
        # being destroyed, but it's convenient.
        existing_subs = Subscription.objects.filter(recipient=recipient_to_keep)
        users_already_subscribed = dict((sub.user_profile_id, sub.active) for sub in existing_subs)

        subs_to_deactivate = Subscription.objects.filter(recipient=recipient_to_destroy, active=True)
        users_to_activate = [
            sub.user_profile for sub in subs_to_deactivate
            if not users_already_subscribed.get(sub.user_profile_id, False)
        ]

        if len(subs_to_deactivate) > 0:
            print("Deactivating %s subscriptions" % (len(subs_to_deactivate),))
            bulk_remove_subscriptions([sub.user_profile for sub in subs_to_deactivate],
                                      [stream_to_destroy])
        do_deactivate_stream(stream_to_destroy)
        if len(users_to_activate) > 0:
            print("Adding %s subscriptions" % (len(users_to_activate),))
            bulk_add_subscriptions([stream_to_keep], users_to_activate)

def get_subscription_or_die(stream_name, user_profile):
    stream = get_stream(stream_name, user_profile.realm)
    if not stream:
        raise JsonableError("Invalid stream %s" % (stream.name,))
    recipient = get_recipient(Recipient.STREAM, stream.id)
    subscription = Subscription.objects.filter(user_profile=user_profile,
                                               recipient=recipient, active=True)

    if not subscription.exists():
        raise JsonableError("Not subscribed to stream %s" % (stream_name,))

    return subscription

def stream_exists_backend(request, user_profile, stream_name, autosubscribe):
    if not valid_stream_name(stream_name):
        return json_error("Invalid characters in stream name")
    stream = get_stream(stream_name, user_profile.realm)
    result = {"exists": bool(stream)}
    if stream is not None:
        recipient = get_recipient(Recipient.STREAM, stream.id)
        if autosubscribe:
            bulk_add_subscriptions([stream], [user_profile])
        result["subscribed"] = Subscription.objects.filter(user_profile=user_profile,
                                                           recipient=recipient,
                                                           active=True).exists()
        return json_success(result) # results are ignored for HEAD requests
    return json_response(data=result, status=404)

def stream_exists_backend(request, user_profile, stream_name, autosubscribe):
    # type: (HttpRequest, UserProfile, text_type, bool) -> HttpResponse
    if not valid_stream_name(stream_name):
        return json_error(_("Invalid characters in stream name"))
    stream = get_stream(stream_name, user_profile.realm)
    result = {"exists": bool(stream)}
    if stream is not None:
        recipient = get_recipient(Recipient.STREAM, stream.id)
        if autosubscribe:
            bulk_add_subscriptions([stream], [user_profile])
        result["subscribed"] = is_active_subscriber(
                user_profile=user_profile,
                recipient=recipient)

        return json_success(result) # results are ignored for HEAD requests
    return json_response(data=result, status=404)

def stream_exists_backend(request, user_profile, stream_id, autosubscribe):
    # type: (HttpRequest, UserProfile, int, bool) -> HttpResponse
    try:
        stream = get_and_validate_stream_by_id(stream_id, user_profile.realm)
    except JsonableError:
        stream = None
    result = {"exists": bool(stream)}
    if stream is not None:
        recipient = get_recipient(Recipient.STREAM, stream.id)
        if autosubscribe:
            bulk_add_subscriptions([stream], [user_profile])
        result["subscribed"] = is_active_subscriber(
                user_profile=user_profile,
                recipient=recipient)

        return json_success(result) # results are ignored for HEAD requests
    return json_response(data=result, status=404)

    def by_stream(self, query, operand, maybe_negate):
        stream = get_stream(operand, self.user_profile.realm)
        if stream is None:
            raise BadNarrowOperator('unknown stream ' + operand)

        if self.user_profile.realm.domain == "mit.edu":
            # MIT users expect narrowing to "social" to also show messages to /^(un)*social(.d)*$/
            # (unsocial, ununsocial, social.d, etc)
            m = re.search(r'^(?:un)*(.+?)(?:\.d)*$', stream.name, re.IGNORECASE)
            if m:
                base_stream_name = m.group(1)
            else:
                base_stream_name = stream.name

            matching_streams = get_active_streams(self.user_profile.realm).filter(
                name__iregex=r'^(un)*%s(\.d)*$' % (self._pg_re_escape(base_stream_name),))
            matching_stream_ids = [matching_stream.id for matching_stream in matching_streams]
            recipients_map = bulk_get_recipients(Recipient.STREAM, matching_stream_ids)
            cond = column("recipient_id").in_([recipient.id for recipient in recipients_map.values()])
            return query.where(maybe_negate(cond))

        recipient = get_recipient(Recipient.STREAM, type_id=stream.id)
        cond = column("recipient_id") == recipient.id
        return query.where(maybe_negate(cond))

def get_subscription(stream_name, user_profile):
    # type: (Text, UserProfile) -> Subscription
    stream = get_stream(stream_name, user_profile.realm)
    recipient = get_recipient(Recipient.STREAM, stream.id)
    return Subscription.objects.get(user_profile=user_profile,
                                    recipient=recipient, active=True)

#.........这里部分代码省略.........
        enter_sends           = user_profile.enter_sends,
        user_id               = user_profile.id,
        left_side_userlist    = register_ret['left_side_userlist'],
        default_language      = register_ret['default_language'],
        default_language_name = get_language_name(register_ret['default_language']),
        language_list_dbl_col = get_language_list_for_templates(register_ret['default_language']),
        language_list         = get_language_list(),
        referrals             = register_ret['referrals'],
        realm_emoji           = register_ret['realm_emoji'],
        needs_tutorial        = needs_tutorial,
        first_in_realm        = first_in_realm,
        prompt_for_invites    = prompt_for_invites,
        notifications_stream  = notifications_stream,
        cross_realm_user_emails = list(get_cross_realm_users()),

        # Stream message notification settings:
        stream_desktop_notifications_enabled =
            user_profile.enable_stream_desktop_notifications,
        stream_sounds_enabled = user_profile.enable_stream_sounds,

        # Private message and @-mention notification settings:
        desktop_notifications_enabled = desktop_notifications_enabled,
        sounds_enabled =
            user_profile.enable_sounds,
        enable_offline_email_notifications =
            user_profile.enable_offline_email_notifications,
        enable_offline_push_notifications =
            user_profile.enable_offline_push_notifications,
        enable_online_push_notifications =
            user_profile.enable_online_push_notifications,
        twenty_four_hour_time = register_ret['twenty_four_hour_time'],

        enable_digest_emails  = user_profile.enable_digest_emails,
        event_queue_id        = register_ret['queue_id'],
        last_event_id         = register_ret['last_event_id'],
        max_message_id        = register_ret['max_message_id'],
        unread_count          = approximate_unread_count(user_profile),
        furthest_read_time    = sent_time_in_epoch_seconds(latest_read),
        save_stacktraces      = settings.SAVE_FRONTEND_STACKTRACES,
        alert_words           = register_ret['alert_words'],
        muted_topics          = register_ret['muted_topics'],
        realm_filters         = register_ret['realm_filters'],
        realm_default_streams = register_ret['realm_default_streams'],
        is_admin              = user_profile.is_realm_admin,
        can_create_streams    = user_profile.can_create_streams(),
        name_changes_disabled = name_changes_disabled(user_profile.realm),
        has_mobile_devices    = num_push_devices_for_user(user_profile) > 0,
        autoscroll_forever = user_profile.autoscroll_forever,
        default_desktop_notifications = user_profile.default_desktop_notifications,
        avatar_url            = avatar_url(user_profile),
        avatar_url_medium     = avatar_url(user_profile, medium=True),
        mandatory_topics      = user_profile.realm.mandatory_topics,
        show_digest_email     = user_profile.realm.show_digest_email,
        presence_disabled     = user_profile.realm.presence_disabled,
        is_zephyr_mirror_realm = user_profile.realm.is_zephyr_mirror_realm,
    )

    if narrow_stream is not None:
        # In narrow_stream context, initial pointer is just latest message
        recipient = get_recipient(Recipient.STREAM, narrow_stream.id)
        try:
            initial_pointer = Message.objects.filter(recipient=recipient).order_by('id').reverse()[0].id
        except IndexError:
            initial_pointer = -1
        page_params["narrow_stream"] = narrow_stream.name
        if narrow_topic is not None:
            page_params["narrow_topic"] = narrow_topic
        page_params["narrow"] = [dict(operator=term[0], operand=term[1]) for term in narrow]
        page_params["max_message_id"] = initial_pointer
        page_params["initial_pointer"] = initial_pointer
        page_params["have_initial_messages"] = (initial_pointer != -1)

    statsd.incr('views.home')
    show_invites = True

    # Some realms only allow admins to invite users
    if user_profile.realm.invite_by_admins_only and not user_profile.is_realm_admin:
        show_invites = False

    product_name = "Zulip"
    page_params['product_name'] = product_name
    request._log_data['extra'] = "[%s]" % (register_ret["queue_id"],)
    response = render_to_response('zerver/index.html',
                                  {'user_profile': user_profile,
                                   'page_params' : simplejson.encoder.JSONEncoderForHTML().encode(page_params),
                                   'nofontface': is_buggy_ua(request.META.get("HTTP_USER_AGENT", "Unspecified")),
                                   'avatar_url': avatar_url(user_profile),
                                   'show_debug':
                                       settings.DEBUG and ('show_debug' in request.GET),
                                   'pipeline': settings.PIPELINE_ENABLED,
                                   'show_invites': show_invites,
                                   'is_admin': user_profile.is_realm_admin,
                                   'show_webathena': user_profile.realm.webathena_enabled,
                                   'enable_feedback': settings.ENABLE_FEEDBACK,
                                   'embedded': narrow_stream is not None,
                                   'product_name': product_name
                                   },
                                  request=request)
    patch_cache_control(response, no_cache=True, no_store=True, must_revalidate=True)
    return response

#.........这里部分代码省略.........
        user_profile.last_pointer_updater = request.session.session_key

    if user_profile.pointer == -1:
        latest_read = None
    else:
        try:
            latest_read = UserMessage.objects.get(user_profile=user_profile,
                                                  message__id=user_profile.pointer)
        except UserMessage.DoesNotExist:
            # Don't completely fail if your saved pointer ID is invalid
            logging.warning("%s has invalid pointer %s" % (user_profile.email, user_profile.pointer))
            latest_read = None

    # Set default language and make it persist
    default_language = register_ret['default_language']
    url_lang = '/{}'.format(request.LANGUAGE_CODE)
    if not request.path.startswith(url_lang):
        translation.activate(default_language)

    request.session[translation.LANGUAGE_SESSION_KEY] = default_language

    # Pass parameters to the client-side JavaScript code.
    # These end up in a global JavaScript Object named 'page_params'.
    page_params = dict(
        # Server settings.
        share_the_love        = settings.SHARE_THE_LOVE,
        development_environment = settings.DEVELOPMENT,
        debug_mode            = settings.DEBUG,
        test_suite            = settings.TEST_SUITE,
        poll_timeout          = settings.POLL_TIMEOUT,
        login_page            = settings.HOME_NOT_LOGGED_IN,
        server_uri            = settings.SERVER_URI,
        maxfilesize           = settings.MAX_FILE_UPLOAD_SIZE,
        max_avatar_file_size  = settings.MAX_AVATAR_FILE_SIZE,
        server_generation     = settings.SERVER_GENERATION,
        use_websockets        = settings.USE_WEBSOCKETS,
        save_stacktraces      = settings.SAVE_FRONTEND_STACKTRACES,
        server_inline_image_preview = settings.INLINE_IMAGE_PREVIEW,
        server_inline_url_embed_preview = settings.INLINE_URL_EMBED_PREVIEW,

        # Misc. extra data.
        have_initial_messages = user_has_messages,
        initial_servertime    = time.time(),  # Used for calculating relative presence age
        default_language_name = get_language_name(register_ret['default_language']),
        language_list_dbl_col = get_language_list_for_templates(register_ret['default_language']),
        language_list         = get_language_list(),
        needs_tutorial        = needs_tutorial,
        first_in_realm        = first_in_realm,
        prompt_for_invites    = prompt_for_invites,
        unread_count          = approximate_unread_count(user_profile),
        furthest_read_time    = sent_time_in_epoch_seconds(latest_read),
        has_mobile_devices    = num_push_devices_for_user(user_profile) > 0,
    )

    undesired_register_ret_fields = [
        'streams',
    ]
    for field_name in set(register_ret.keys()) - set(undesired_register_ret_fields):
        page_params[field_name] = register_ret[field_name]

    if narrow_stream is not None:
        # In narrow_stream context, initial pointer is just latest message
        recipient = get_recipient(Recipient.STREAM, narrow_stream.id)
        try:
            initial_pointer = Message.objects.filter(recipient=recipient).order_by('id').reverse()[0].id
        except IndexError:
            initial_pointer = -1
        page_params["narrow_stream"] = narrow_stream.name
        if narrow_topic is not None:
            page_params["narrow_topic"] = narrow_topic
        page_params["narrow"] = [dict(operator=term[0], operand=term[1]) for term in narrow]
        page_params["max_message_id"] = initial_pointer
        page_params["pointer"] = initial_pointer
        page_params["have_initial_messages"] = (initial_pointer != -1)
        page_params["enable_desktop_notifications"] = False

    statsd.incr('views.home')
    show_invites = True

    # Some realms only allow admins to invite users
    if user_profile.realm.invite_by_admins_only and not user_profile.is_realm_admin:
        show_invites = False

    request._log_data['extra'] = "[%s]" % (register_ret["queue_id"],)
    response = render(request, 'zerver/index.html',
                      context={'user_profile': user_profile,
                               'page_params': simplejson.encoder.JSONEncoderForHTML().encode(page_params),
                               'nofontface': is_buggy_ua(request.META.get("HTTP_USER_AGENT", "Unspecified")),
                               'avatar_url': avatar_url(user_profile),
                               'show_debug':
                               settings.DEBUG and ('show_debug' in request.GET),
                               'pipeline': settings.PIPELINE_ENABLED,
                               'show_invites': show_invites,
                               'is_admin': user_profile.is_realm_admin,
                               'show_webathena': user_profile.realm.webathena_enabled,
                               'enable_feedback': settings.ENABLE_FEEDBACK,
                               'embedded': narrow_stream is not None,
                               },)
    patch_cache_control(response, no_cache=True, no_store=True, must_revalidate=True)
    return response