Module exchangelib.fields
Expand source code
import abc
import datetime
import logging
from contextlib import suppress
from decimal import Decimal, InvalidOperation
from importlib import import_module
from .errors import InvalidTypeError
from .ewsdatetime import UTC, EWSDate, EWSDateTime, EWSTimeZone, NaiveDateTimeNotAllowed, UnknownTimeZone
from .util import (
    TNS,
    create_element,
    get_xml_attr,
    get_xml_attrs,
    is_iterable,
    set_xml_value,
    value_to_xml_text,
    xml_text_to_value,
)
from .version import EXCHANGE_2013, Build, SupportedVersionInstanceMixIn
log = logging.getLogger(__name__)
# DayOfWeekIndex enum. See
# https://docs.microsoft.com/en-us/exchange/client-developer/web-service-reference/dayofweekindex
FIRST = "First"
SECOND = "Second"
THIRD = "Third"
FOURTH = "Fourth"
LAST = "Last"
WEEK_NUMBERS = (FIRST, SECOND, THIRD, FOURTH, LAST)
# Month enum
JANUARY = "January"
FEBRUARY = "February"
MARCH = "March"
APRIL = "April"
MAY = "May"
JUNE = "June"
JULY = "July"
AUGUST = "August"
SEPTEMBER = "September"
OCTOBER = "October"
NOVEMBER = "November"
DECEMBER = "December"
MONTHS = (JANUARY, FEBRUARY, MARCH, APRIL, MAY, JUNE, JULY, AUGUST, SEPTEMBER, OCTOBER, NOVEMBER, DECEMBER)
# Weekday enum
MONDAY = "Monday"
TUESDAY = "Tuesday"
WEDNESDAY = "Wednesday"
THURSDAY = "Thursday"
FRIDAY = "Friday"
SATURDAY = "Saturday"
SUNDAY = "Sunday"
WEEKDAY_NAMES = (MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY, SUNDAY)
# Used for weekday recurrences except weekly recurrences. E.g. for "First WeekendDay in March"
DAY = "Day"
WEEK_DAY = "Weekday"  # Non-weekend day
WEEKEND_DAY = "WeekendDay"
EXTRA_WEEKDAY_OPTIONS = (DAY, WEEK_DAY, WEEKEND_DAY)
# DaysOfWeek enum: See
# https://docs.microsoft.com/en-us/exchange/client-developer/web-service-reference/daysofweek-daysofweektype
WEEKDAYS = WEEKDAY_NAMES + EXTRA_WEEKDAY_OPTIONS
class InvalidField(ValueError):
    """Used when a field name does not match any defined fields."""
class InvalidFieldForVersion(ValueError):
    """Used when a field is not supported on the given Exchange version."""
class InvalidChoiceForVersion(ValueError):
    """Used when a value is not valid for an enum-type field."""
def split_field_path(field_path):
    """Split a string path into its field, label and subfield parts.
    :param field_path:
    :return Examples:
      'start' -> ('start', None, None)
      'phone_numbers__PrimaryPhone' -> ('phone_numbers', 'PrimaryPhone', None)
      'physical_addresses__Home__street' -> ('physical_addresses', 'Home', 'street')
    """
    if not isinstance(field_path, str):
        raise InvalidTypeError("field_path", field_path, str)
    search_parts = field_path.split("__")
    field = search_parts[0]
    try:
        label = search_parts[1]
    except IndexError:
        label = None
    try:
        subfield = search_parts[2]
    except IndexError:
        subfield = None
    return field, label, subfield
def resolve_field_path(field_path, folder, strict=True):
    """Take the name of a field, or '__'-delimited path to a subfield, and return the corresponding Field object,
    label and SubField object.
    """
    from .indexed_properties import MultiFieldIndexedElement, SingleFieldIndexedElement
    fieldname, label, subfield_name = split_field_path(field_path)
    field = folder.get_item_field_by_fieldname(fieldname)
    subfield = None
    if isinstance(field, IndexedField):
        if strict and not label:
            raise ValueError(
                f"IndexedField path {field_path!r} must specify label, e.g. "
                f"'{fieldname}__{field.value_cls.get_field_by_fieldname('label').default}'"
            )
        valid_labels = field.value_cls.get_field_by_fieldname("label").supported_choices(version=folder.account.version)
        if label and label not in valid_labels:
            raise ValueError(
                f"Label {label!r} on IndexedField path {field_path!r} must be one of {sorted(valid_labels)}"
            )
        if issubclass(field.value_cls, MultiFieldIndexedElement):
            if strict and not subfield_name:
                raise ValueError(
                    f"IndexedField path {field_path!r} must specify subfield, e.g. "
                    f"'{fieldname}__{label}__{field.value_cls.FIELDS[1].name}'"
                )
            if subfield_name:
                try:
                    subfield = field.value_cls.get_field_by_fieldname(subfield_name)
                except ValueError:
                    field_names = ", ".join(
                        f.name for f in field.value_cls.supported_fields(version=folder.account.version)
                    )
                    raise ValueError(
                        f"Subfield {subfield_name!r} on IndexedField path {field_path!r} "
                        f"must be one of {sorted(field_names)}"
                    )
        else:
            if not issubclass(field.value_cls, SingleFieldIndexedElement):
                raise InvalidTypeError("field.value_cls", field.value_cls, SingleFieldIndexedElement)
            if subfield_name:
                raise ValueError(
                    f"IndexedField path {field_path!r} must not specify subfield, e.g. just {fieldname}__{label}'"
                )
            subfield = field.value_cls.value_field(version=folder.account.version)
    else:
        if label or subfield_name:
            raise ValueError(f"Field path {field_path!r} must not specify label or subfield, e.g. just {fieldname!r}")
    return field, label, subfield
class FieldPath:
    """Holds values needed to point to a single field. For indexed properties, we allow setting either field,
    field and label, or field, label and subfield. This allows pointing to either the full indexed property set, a
    property with a specific label, or a particular subfield field on that property.
    """
    def __init__(self, field, label=None, subfield=None):
        """
        :param field: A FieldURIField or ExtendedPropertyField instance
        :param label: a str
        :param subfield: A SubField instance
        """
        # 'label' and 'subfield' are only used for IndexedField fields
        self.field = field
        self.label = label
        self.subfield = subfield
    @classmethod
    def from_string(cls, field_path, folder, strict=False):
        field, label, subfield = resolve_field_path(field_path, folder=folder, strict=strict)
        return cls(field=field, label=label, subfield=subfield)
    def get_value(self, item):
        # For indexed properties, get either the full property set, the property with matching label, or a particular
        # subfield.
        if self.label:
            for sub_item in getattr(item, self.field.name):
                if sub_item.label == self.label:
                    if self.subfield:
                        return getattr(sub_item, self.subfield.name)
                    return sub_item
            return None  # No item with this label
        return getattr(item, self.field.name)
    def get_sort_value(self, item):
        # For fields that allow values of different types, we need to return a value that is
        val = self.get_value(item)
        if isinstance(self.field, DateOrDateTimeField) and isinstance(val, EWSDate):
            return item.date_to_datetime(field_name=self.field.name)
        return val
    def to_xml(self):
        if isinstance(self.field, IndexedField):
            if not self.label or not self.subfield:
                raise ValueError(f"Field path for indexed field {self.field.name!r} is missing label and/or subfield")
            return self.subfield.field_uri_xml(field_uri=self.field.field_uri, label=self.label)
        return self.field.field_uri_xml()
    def expand(self, version):
        # If this path does not point to a specific subfield on an indexed property, return all the possible path
        # combinations for this field path.
        if isinstance(self.field, IndexedField):
            labels = (
                [self.label]
                if self.label
                else self.field.value_cls.get_field_by_fieldname("label").supported_choices(version=version)
            )
            subfields = [self.subfield] if self.subfield else self.field.value_cls.supported_fields(version=version)
            for label in labels:
                for subfield in subfields:
                    yield FieldPath(field=self.field, label=label, subfield=subfield)
        else:
            yield self
    @property
    def path(self):
        if self.label:
            from .indexed_properties import SingleFieldIndexedElement
            if issubclass(self.field.value_cls, SingleFieldIndexedElement) or not self.subfield:
                return f"{self.field.name}__{self.label}"
            return f"{self.field.name}__{self.label}__{self.subfield.name}"
        return self.field.name
    def __eq__(self, other):
        return hash(self) == hash(other)
    def __str__(self):
        return self.path
    def __repr__(self):
        return self.__class__.__name__ + repr((self.field, self.label, self.subfield))
    def __hash__(self):
        return hash((self.field, self.label, self.subfield))
class FieldOrder:
    """Holds values needed to call server-side sorting on a single field path."""
    def __init__(self, field_path, reverse=False):
        """
        :param field_path: A FieldPath instance
        :param reverse: A bool
        """
        self.field_path = field_path
        self.reverse = reverse
    @classmethod
    def from_string(cls, field_path, folder):
        return cls(
            field_path=FieldPath.from_string(field_path=field_path.lstrip("-"), folder=folder, strict=True),
            reverse=field_path.startswith("-"),
        )
    def to_xml(self):
        field_order = create_element("t:FieldOrder", attrs=dict(Order="Descending" if self.reverse else "Ascending"))
        field_order.append(self.field_path.to_xml())
        return field_order
class Field(SupportedVersionInstanceMixIn, metaclass=abc.ABCMeta):
    """Holds information related to an item field."""
    value_cls = None
    is_list = False
    # Is the field a complex EWS type? Quoting the EWS FindItem docs:
    #
    #   The FindItem operation returns only the first 512 bytes of any streamable property. For Unicode, it returns
    #   the first 255 characters by using a null-terminated Unicode string. It does not return any of the message
    #   body formats or the recipient lists.
    #
    is_complex = False
    def __init__(
        self,
        name=None,
        is_required=False,
        is_required_after_save=False,
        is_read_only=False,
        is_read_only_after_send=False,
        is_searchable=True,
        is_attribute=False,
        default=None,
        *args,
        **kwargs,
    ):
        self.name = name  # Usually set by the EWSMeta metaclass
        self.default = default  # Default value if none is given
        self.is_required = is_required
        # Some fields cannot be deleted on update. Default to True if 'is_required' is set
        self.is_required_after_save = is_required or is_required_after_save
        self.is_read_only = is_read_only
        # Set this for fields that raise ErrorInvalidPropertyUpdateSentMessage on update after send. Default to True
        # if 'is_read_only' is set
        self.is_read_only_after_send = is_read_only or is_read_only_after_send
        # Define whether the field can be used in a QuerySet. For some reason, EWS disallows searching on some fields,
        # instead throwing ErrorInvalidValueForProperty
        self.is_searchable = is_searchable
        # When true, this field is treated as an XML attribute instead of an element
        self.is_attribute = is_attribute
        super().__init__(*args, **kwargs)
    def clean(self, value, version=None):
        if version and not self.supports_version(version):
            raise InvalidFieldForVersion(
                f"Field {self.name!r} does not support EWS builds prior to {self.supported_from} (server has {version})"
            )
        if value is None:
            if self.is_required and self.default is None:
                raise ValueError(f"{self.name!r} is a required field with no default")
            return self.default
        if self.is_list:
            if not is_iterable(value):
                raise TypeError(f"Field {self.name!r} value {value!r} must be of type {list}")
            for v in value:
                if not isinstance(v, self.value_cls):
                    raise TypeError(f"Field {self.name!r} value {v!r} must be of type {self.value_cls}")
                if hasattr(v, "clean"):
                    v.clean(version=version)
        else:
            if not isinstance(value, self.value_cls):
                raise TypeError(f"Field {self.name!r} value {value!r} must be of type {self.value_cls}")
            if hasattr(value, "clean"):
                value.clean(version=version)
        return value
    @abc.abstractmethod
    def from_xml(self, elem, account):
        """Read a value from the given element"""
    @abc.abstractmethod
    def to_xml(self, value, version):
        """Convert this field to an XML element"""
    def __eq__(self, other):
        return hash(self) == hash(other)
    @abc.abstractmethod
    def __hash__(self):
        """Field instances must be hashable"""
    def __repr__(self):
        args_str = ", ".join(
            f"{f}={getattr(self, f)!r}" for f in ("name", "value_cls", "is_list", "is_complex", "default")
        )
        return f"{self.__class__.__name__}({args_str})"
class FieldURIField(Field):
    """A field that has a FieldURI value in EWS. This means it's value is contained in an XML element or attribute. It
    may additionally be a label for searching, filtering and limiting fields. In that case, the FieldURI format will be
    'itemtype:FieldName'
    """
    def __init__(self, *args, **kwargs):
        self.field_uri = kwargs.pop("field_uri", None)
        self.namespace = kwargs.pop("namespace", TNS)
        super().__init__(*args, **kwargs)
        # See all valid FieldURI values at
        # https://docs.microsoft.com/en-us/exchange/client-developer/web-service-reference/fielduri
        # The field_uri has a prefix when the FieldURI points to an Item field.
        if self.field_uri is None:
            self.field_uri_postfix = None
        elif ":" in self.field_uri:
            self.field_uri_postfix = self.field_uri.split(":")[1]
        else:
            self.field_uri_postfix = self.field_uri
    def _get_val_from_elem(self, elem):
        if self.is_attribute:
            return elem.get(self.field_uri) or None
        return get_xml_attr(elem, self.response_tag())
    def from_xml(self, elem, account):
        val = self._get_val_from_elem(elem)
        if val is not None:
            try:
                return xml_text_to_value(val, self.value_cls)
            except (ValueError, InvalidOperation):
                log.warning("Cannot convert value '%s' on field '%s' to type %s", val, self.name, self.value_cls)
                return None
        return self.default
    def to_xml(self, value, version):
        field_elem = create_element(self.request_tag())
        return set_xml_value(field_elem, value, version=version)
    def field_uri_xml(self):
        from .properties import FieldURI
        if not self.field_uri:
            raise ValueError(f"'field_uri' value is missing on field '{self.name}'")
        return FieldURI(field_uri=self.field_uri).to_xml(version=None)
    def request_tag(self):
        if not self.field_uri_postfix:
            raise ValueError(f"'field_uri_postfix' value is missing on field '{self.name}'")
        return f"t:{self.field_uri_postfix}"
    def response_tag(self):
        if not self.field_uri_postfix:
            raise ValueError(f"'field_uri_postfix' value is missing on field '{self.name}'")
        return f"{{{self.namespace}}}{self.field_uri_postfix}"
    def __hash__(self):
        return hash(self.field_uri)
class BooleanField(FieldURIField):
    """A field that handles boolean values."""
    value_cls = bool
class OnOffField(BooleanField):
    """A field that handles boolean values that are On/Off instead of True/False."""
class IntegerField(FieldURIField):
    """A field that handles integer values."""
    value_cls = int
    def __init__(self, *args, **kwargs):
        self.min = kwargs.pop("min", None)
        self.max = kwargs.pop("max", None)
        super().__init__(*args, **kwargs)
    def _clean_single_value(self, v):
        if self.min is not None and v < self.min:
            raise ValueError(f"Value {v!r} on field {self.name!r} must be greater than {self.min}")
        if self.max is not None and v > self.max:
            raise ValueError(f"Value {v!r} on field {self.name!r} must be less than {self.max}")
    def clean(self, value, version=None):
        value = super().clean(value, version=version)
        if value is not None:
            if self.is_list:
                for v in value:
                    self._clean_single_value(v)
            else:
                self._clean_single_value(value)
        return value
class DecimalField(IntegerField):
    """A field that handles decimal values."""
    value_cls = Decimal
class EnumField(IntegerField):
    """A field type where you can enter either the 1-based index in an enum (tuple), or the enum value. Values will be
    stored internally as integers but output in XML as strings.
    """
    def __init__(self, *args, **kwargs):
        self.enum = kwargs.pop("enum")
        # Set different min/max defaults than IntegerField
        if "max" in kwargs:
            raise AttributeError("EnumField does not support the 'max' attribute")
        kwargs["min"] = kwargs.pop("min", 1)
        kwargs["max"] = kwargs["min"] + len(self.enum) - 1
        super().__init__(*args, **kwargs)
    def clean(self, value, version=None):
        if self.is_list:
            value = list(value)  # Convert to something we can index
            for i, v in enumerate(value):
                if isinstance(v, str):
                    if v not in self.enum:
                        raise ValueError(f"List value {v!r} on field {self.name!r} must be one of {sorted(self.enum)}")
                    value[i] = self.enum.index(v) + 1
            if not value:
                raise ValueError(f"Value {value!r} on field {self.name!r} must not be empty")
            if len(value) > len(set(value)):
                raise ValueError(f"List entries {value!r} on field {self.name!r} must be unique")
        else:
            if isinstance(value, str):
                if value not in self.enum:
                    raise ValueError(f"Value {value!r} on field {self.name!r} must be one of {sorted(self.enum)}")
                value = self.enum.index(value) + 1
        return super().clean(value, version=version)
    def as_string(self, value):
        # Converts an integer in the enum to its equivalent string
        if self.is_list:
            return [self.enum[v - 1] for v in sorted(value)]
        return self.enum[value - 1]
    def from_xml(self, elem, account):
        val = self._get_val_from_elem(elem)
        if val is not None:
            try:
                if self.is_list:
                    return [self.enum.index(v) + 1 for v in val.split(" ")]
                return self.enum.index(val) + 1
            except ValueError:
                log.warning("Cannot convert value '%s' on field '%s' to type %s", val, self.name, self.value_cls)
                return None
        return self.default
    def to_xml(self, value, version):
        field_elem = create_element(self.request_tag())
        if self.is_list:
            return set_xml_value(field_elem, " ".join(self.as_string(value)), version=version)
        return set_xml_value(field_elem, self.as_string(value), version=version)
class EnumListField(EnumField):
    """Like EnumField, but for lists of enum values."""
    is_list = True
class WeekdaysField(EnumListField):
    """Like EnumListField, allow a single value instead of a 1-element list."""
    def clean(self, value, version=None):
        if isinstance(value, (int, str)):
            value = [value]
        return super().clean(value, version)
class EnumAsIntField(EnumField):
    """Like EnumField, but communicates values with EWS in integers."""
    def from_xml(self, elem, account):
        return super(EnumField, self).from_xml(elem=elem, account=account)
    def to_xml(self, value, version):
        field_elem = create_element(self.request_tag())
        return set_xml_value(field_elem, value, version=version)
class AppointmentStateField(IntegerField):
    """MSDN: https://docs.microsoft.com/en-us/exchange/client-developer/web-service-reference/appointmentstate"""
    NONE = "None"
    MEETING = "Meeting"
    RECEIVED = "Received"
    CANCELLED = "Canceled"
    STATES = {
        NONE: 0x0000,
        MEETING: 0x0001,
        RECEIVED: 0x0002,
        CANCELLED: 0x0004,
    }
    def from_xml(self, elem, account):
        val = super().from_xml(elem=elem, account=account)
        if val is None:
            return val
        return tuple(name for name, mask in self.STATES.items() if bool(val & mask))
class Base64Field(FieldURIField):
    """A field that handles binary data and automatically Base64 encodes and decodes the data."""
    value_cls = bytes
    is_complex = True
    def __init__(self, *args, **kwargs):
        if "is_searchable" not in kwargs:
            kwargs["is_searchable"] = False
        super().__init__(*args, **kwargs)
class MimeContentField(Base64Field):
    """Like Base64Field. This element has an optional 'CharacterSet' attribute, but it specifies the encoding of the
    base64-encoded string (which doesn't make sense since base64-encoded strings are always ASCII). We ignore it here
    because the decoded data could be in some other encoding, specified in the "Content-Type" HTTP header.
    """
class DateField(FieldURIField):
    """A field that handles date values."""
    value_cls = EWSDate
    def clean(self, value, version=None):
        # Allow plain datetime.date values as input
        if type(value) is datetime.date:
            value = self.value_cls.from_date(value)
        return super().clean(value=value, version=version)
class DateTimeBackedDateField(DateField):
    """A field that acts like a date, but where values are sent to EWS as EWSDateTime."""
    def __init__(self, *args, **kwargs):
        # Not all fields assume a default time of 00:00, so make this configurable
        self._default_time = kwargs.pop("default_time", datetime.time(0, 0))
        super().__init__(*args, **kwargs)
        # Create internal field to handle datetime-only logic
        self._datetime_field = DateTimeField(*args, **kwargs)
    def date_to_datetime(self, value):
        return self._datetime_field.value_cls.combine(value, self._default_time).replace(tzinfo=UTC)
    def from_xml(self, elem, account):
        val = self._get_val_from_elem(elem)
        if val is not None and len(val) == 25:
            # This is a datetime string with timezone info, e.g. '2021-03-01T21:55:54+00:00'. We don't want to have
            # datetime values converted to UTC before converting to date. EWSDateTime.from_string() insists on
            # converting to UTC, but we don't have an EWSTimeZone we can convert the timezone info to. Instead, parse
            # the string with .fromisoformat().
            return datetime.datetime.fromisoformat(val).date()
        # Revert to default parsing of datetime strings
        res = self._datetime_field.from_xml(elem=elem, account=account)
        if res is None:
            return res
        return res.date()
    def to_xml(self, value, version):
        # Convert date to datetime
        value = self.date_to_datetime(value)
        return self._datetime_field.to_xml(value=value, version=version)
class TimeField(FieldURIField):
    """A field that handles time values."""
    value_cls = datetime.time
    def from_xml(self, elem, account):
        val = self._get_val_from_elem(elem)
        if val is not None:
            with suppress(ValueError):
                if ":" in val:
                    # Assume a string of the form HH:MM:SS
                    return datetime.datetime.strptime(val, "%H:%M:%S").time()
                # Assume an integer in minutes since midnight
                return (datetime.datetime(2000, 1, 1) + datetime.timedelta(minutes=int(val))).time()
        return self.default
class TimeDeltaField(FieldURIField):
    """A field that handles timedelta values."""
    value_cls = datetime.timedelta
    def __init__(self, *args, **kwargs):
        self.min = kwargs.pop("min", datetime.timedelta(0))
        self.max = kwargs.pop("max", datetime.timedelta(days=1))
        super().__init__(*args, **kwargs)
    def clean(self, value, version=None):
        if self.min is not None and value < self.min:
            raise ValueError(f"Value {value!r} on field {self.name!r} must be greater than {self.min}")
        if self.max is not None and value > self.max:
            raise ValueError(f"Value {value!r} on field {self.name!r} must be less than {self.max}")
        return super().clean(value, version=version)
class DateTimeField(FieldURIField):
    """A field that handles datetime values."""
    value_cls = EWSDateTime
    def clean(self, value, version=None):
        if isinstance(value, datetime.datetime):
            if not value.tzinfo:
                raise ValueError(f"Value {value!r} on field {self.name!r} must be timezone aware")
            if type(value) is datetime.datetime:
                value = self.value_cls.from_datetime(value)
        return super().clean(value, version=version)
    def from_xml(self, elem, account):
        val = self._get_val_from_elem(elem)
        if val is not None:
            try:
                return self.value_cls.from_string(val)
            except ValueError as e:
                if isinstance(e, NaiveDateTimeNotAllowed):
                    # We encountered a naive datetime
                    if account:
                        # Convert to timezone-aware datetime using the default timezone of the account
                        tz = account.default_timezone
                        log.info("Found naive datetime %s on field %s. Assuming timezone %s", e.local_dt, self.name, tz)
                        return e.local_dt.replace(tzinfo=tz)
                    # There's nothing we can do but return the naive date. It's better than assuming e.g. UTC.
                    log.warning("Returning naive datetime %s on field %s", e.local_dt, self.name)
                    return e.local_dt
                log.info("Cannot convert value '%s' on field '%s' to type %s", val, self.name, self.value_cls)
                return None
        return self.default
class DateOrDateTimeField(DateTimeField):
    """This field can handle both EWSDate and EWSDateTime. Used for calendar items where 'start' and 'end'
    values are conceptually dates when the calendar item is an all-day event, but datetimes in all other cases, and
    for recurrences where the returned 'start' and 'end' values may be either dates or datetimes depending on whether
    the recurring item is a task or a calendar item.
    For all-day calendar items, we assume both start and end dates are inclusive.
    For filtering kwarg validation and other places where we must decide on a specific class, we settle on datetime.
    """
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        # Create internal field to handle date-only logic
        self._date_field = DateField(*args, **kwargs)
    def clean(self, value, version=None):
        # Most calendar items will contain datetime values. We can't access the is_all_day value here, so CalendarItem
        # must handle that sanity check.
        if type(value) in (EWSDate, datetime.date):
            return self._date_field.clean(value=value, version=version)
        return super().clean(value=value, version=version)
    def from_xml(self, elem, account):
        val = self._get_val_from_elem(elem)
        if val is not None and len(val) == 16:
            # This is a date format with timezone info, as sent by task recurrences. Eg: '2006-01-09+01:00'
            return self._date_field.from_xml(elem=elem, account=account)
        return super().from_xml(elem=elem, account=account)
class TimeZoneField(FieldURIField):
    """A field that handles timezone values."""
    value_cls = EWSTimeZone
    def clean(self, value, version=None):
        # Allow other timezone implementations as input
        if value is not None:
            value = self.value_cls.from_timezone(value)
        return super().clean(value=value, version=version)
    def from_xml(self, elem, account):
        field_elem = elem.find(self.response_tag())
        if field_elem is not None:
            ms_id = field_elem.get("Id")
            ms_name = field_elem.get("Name")
            try:
                return self.value_cls.from_ms_id(ms_id or ms_name)
            except UnknownTimeZone:
                log.warning(
                    "Cannot convert value '%s' on field '%s' to type %s (unknown timezone ID)",
                    (ms_id or ms_name),
                    self.name,
                    self.value_cls,
                )
                return None
        return self.default
    def to_xml(self, value, version):
        attrs = dict(Id=value.ms_id)
        if value.ms_name:
            attrs["Name"] = value.ms_name
        return create_element(self.request_tag(), attrs=attrs)
class TextField(FieldURIField):
    """A field that stores a string value with no length limit."""
    value_cls = str
    is_complex = True
class TextListField(TextField):
    """Like TextField, but for lists of text."""
    is_list = True
    def __init__(self, *args, **kwargs):
        self.list_elem_name = kwargs.pop("list_elem_name", "String")
        super().__init__(*args, **kwargs)
    def list_elem_request_tag(self):
        return f"t:{self.list_elem_name}"
    def list_elem_response_tag(self):
        return f"{{{self.namespace}}}{self.list_elem_name}"
    def from_xml(self, elem, account):
        iter_elem = elem.find(self.response_tag())
        if iter_elem is not None:
            return get_xml_attrs(iter_elem, self.list_elem_response_tag())
        return self.default
    def to_xml(self, value, version):
        field_elem = create_element(self.request_tag())
        for v in value:
            field_elem.append(set_xml_value(create_element(self.list_elem_request_tag()), v, version=version))
        return field_elem
class MessageField(TextField):
    """A field that handles the Message element."""
    INNER_ELEMENT_NAME = "Message"
    def from_xml(self, elem, account):
        reply = elem.find(self.response_tag())
        if reply is None:
            return None
        message = reply.find(f"{{{TNS}}}{self.INNER_ELEMENT_NAME}")
        if message is None:
            return None
        return message.text
    def to_xml(self, value, version):
        field_elem = create_element(self.request_tag())
        message = create_element(f"t:{self.INNER_ELEMENT_NAME}")
        message.text = value
        return set_xml_value(field_elem, message, version=version)
class CharField(TextField):
    """A field that stores a string value with a limited length."""
    is_complex = False
    def __init__(self, *args, **kwargs):
        self.max_length = kwargs.pop("max_length", 255)
        if not 1 <= self.max_length <= 255:
            # A field supporting messages longer than 255 chars should be TextField
            raise ValueError("'max_length' must be in the range 1-255")
        super().__init__(*args, **kwargs)
    def clean(self, value, version=None):
        value = super().clean(value, version=version)
        if value is not None and len(value) > self.max_length:
            raise ValueError(f"{self.name!r} value {value!r} exceeds length {self.max_length}")
        return value
class IdField(CharField):
    """A field to hold the 'Id' and 'Changekey' attributes on 'ItemId' type items. There is no guaranteed max length,
    but we can assume 512 bytes in practice. See
    https://docs.microsoft.com/en-us/exchange/client-developer/exchange-web-services/ews-identifiers-in-exchange
    """
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.max_length = 512  # This is above the normal 255 limit, but this is actually an attribute, not a field
        self.is_searchable = False
        self.is_attribute = True
class CharListField(TextListField):
    """Like TextListField, but for string values with a limited length."""
    def __init__(self, *args, **kwargs):
        self.max_length = kwargs.pop("max_length", 255)
        if not 1 <= self.max_length <= 255:
            # A field supporting messages longer than 255 chars should be TextField
            raise ValueError("'max_length' must be in the range 1-255")
        super().__init__(*args, **kwargs)
    def clean(self, value, version=None):
        value = super().clean(value, version=version)
        if value is not None:
            for v in value:
                if len(v) > self.max_length:
                    raise ValueError(f"{self.name!r} value {v!r} exceeds length {self.max_length}")
        return value
class URIField(TextField):
    """Helper to mark strings that must conform to xsd:anyURI.
    If we want a URI validator, see https://stackoverflow.com/questions/14466585/is-this-regex-correct-for-xsdanyuri
    """
class EmailAddressField(CharField):
    """A helper class used for email address string that we can use for email validation."""
class CultureField(CharField):
    """Helper to mark strings that are # RFC 1766 culture values."""
class Choice(SupportedVersionInstanceMixIn):
    """Implement versioned choices for the ChoiceField field."""
    def __init__(self, value, *args, **kwargs):
        self.value = value
        super().__init__(*args, **kwargs)
class ChoiceField(CharField):
    """Like CharField, but restricts the value to a limited set of strings."""
    def __init__(self, *args, **kwargs):
        self.choices = kwargs.pop("choices")
        super().__init__(*args, **kwargs)
    def clean(self, value, version=None):
        value = super().clean(value, version=version)
        if value is None:
            return None
        valid_choices = [c.value for c in self.choices]
        if version:
            valid_choices_for_version = self.supported_choices(version=version)
            if value in valid_choices_for_version:
                return value
            if value in valid_choices:
                raise InvalidChoiceForVersion(
                    f"Choice {self.name!r} only supports server versions from {self.supported_from or '*'} to "
                    f"{self.deprecated_from or '*'} (server has {version})"
                )
        else:
            if value in valid_choices:
                return value
        raise ValueError(f"Invalid choice {value!r} for field {self.name!r}. Valid choices are {sorted(valid_choices)}")
    def supported_choices(self, version):
        return tuple(c.value for c in self.choices if c.supports_version(version))
FREE_BUSY_CHOICES = [
    Choice("Free"),
    Choice("Tentative"),
    Choice("Busy"),
    Choice("OOF"),
    Choice("NoData"),
    Choice("WorkingElsewhere", supported_from=EXCHANGE_2013),
]
class FreeBusyStatusField(ChoiceField):
    """Like ChoiceField, but specifically for Free/Busy values."""
    def __init__(self, *args, **kwargs):
        kwargs["choices"] = set(FREE_BUSY_CHOICES)
        super().__init__(*args, **kwargs)
class BodyField(TextField):
    """A TextField with specific requirements for the Item body."""
    def __init__(self, *args, **kwargs):
        from .properties import Body
        self.value_cls = Body
        super().__init__(*args, **kwargs)
    def clean(self, value, version=None):
        if value is not None and not isinstance(value, self.value_cls):
            value = self.value_cls(value)
        return super().clean(value, version=version)
    def from_xml(self, elem, account):
        from .properties import Body, HTMLBody
        field_elem = elem.find(self.response_tag())
        val = None if field_elem is None else field_elem.text or None
        if val is not None:
            body_type = field_elem.get("BodyType")
            return {Body.body_type: Body, HTMLBody.body_type: HTMLBody}[body_type](val)
        return self.default
    def to_xml(self, value, version):
        from .properties import Body, HTMLBody
        body_type = {
            Body: Body.body_type,
            HTMLBody: HTMLBody.body_type,
        }[type(value)]
        field_elem = create_element(self.request_tag(), attrs=dict(BodyType=body_type))
        return set_xml_value(field_elem, value, version=version)
class EWSElementField(FieldURIField):
    """A generic field for any EWSElement object."""
    def __init__(self, *args, **kwargs):
        self._value_cls = kwargs.pop("value_cls")
        if "namespace" not in kwargs:
            kwargs["namespace"] = self.value_cls.NAMESPACE
        super().__init__(*args, **kwargs)
    @property
    def value_cls(self):
        if isinstance(self._value_cls, str):
            # Support 'value_cls' as string to allow self-referencing classes. The class must be importable from the
            # top-level module.
            self._value_cls = getattr(import_module(self.__module__.split(".")[0]), self._value_cls)
        return self._value_cls
    def from_xml(self, elem, account):
        if self.is_list:
            iter_elem = elem.find(self.response_tag())
            if iter_elem is not None:
                return [
                    self.value_cls.from_xml(elem=e, account=account)
                    for e in iter_elem.findall(self.value_cls.response_tag())
                ]
        else:
            if self.field_uri is None:
                sub_elem = elem.find(self.value_cls.response_tag())
            else:
                sub_elem = elem.find(self.response_tag())
            if sub_elem is not None:
                return self.value_cls.from_xml(elem=sub_elem, account=account)
        return self.default
    def to_xml(self, value, version):
        if self.field_uri is None:
            return value.to_xml(version=version)
        field_elem = create_element(self.request_tag())
        return set_xml_value(field_elem, value, version=version)
class EWSElementListField(EWSElementField):
    """Like EWSElementField, but for lists of EWSElement objects."""
    is_list = True
    is_complex = True
class TransitionListField(EWSElementListField):
    def __init__(self, *args, **kwargs):
        from .properties import BaseTransition
        kwargs["value_cls"] = BaseTransition
        super().__init__(*args, **kwargs)
    def from_xml(self, elem, account):
        iter_elem = elem.find(self.response_tag()) if self.field_uri else elem
        if iter_elem is not None:
            return [
                self.value_cls.transition_model_from_tag(e.tag).from_xml(elem=e, account=account) for e in iter_elem
            ]
        return self.default
class AssociatedCalendarItemIdField(EWSElementField):
    is_complex = True
    def __init__(self, *args, **kwargs):
        from .properties import AssociatedCalendarItemId
        kwargs["value_cls"] = AssociatedCalendarItemId
        super().__init__(*args, **kwargs)
    def to_xml(self, value, version):
        return value.to_xml(version=version)
class RecurrenceField(EWSElementField):
    is_complex = True
    def __init__(self, *args, **kwargs):
        from .recurrence import Recurrence
        kwargs["value_cls"] = Recurrence
        super().__init__(*args, **kwargs)
    def to_xml(self, value, version):
        return value.to_xml(version=version)
class TaskRecurrenceField(EWSElementField):
    is_complex = True
    def __init__(self, *args, **kwargs):
        from .recurrence import TaskRecurrence
        kwargs["value_cls"] = TaskRecurrence
        super().__init__(*args, **kwargs)
    def to_xml(self, value, version):
        return value.to_xml(version=version)
class ReferenceItemIdField(EWSElementField):
    is_complex = True
    def __init__(self, *args, **kwargs):
        from .properties import ReferenceItemId
        kwargs["value_cls"] = ReferenceItemId
        super().__init__(*args, **kwargs)
    def to_xml(self, value, version):
        return value.to_xml(version=version)
class OccurrenceField(EWSElementField):
    is_complex = True
class OccurrenceListField(OccurrenceField):
    is_list = True
class MessageHeaderField(EWSElementListField):
    def __init__(self, *args, **kwargs):
        from .properties import MessageHeader
        kwargs["value_cls"] = MessageHeader
        super().__init__(*args, **kwargs)
class BaseEmailField(EWSElementField, metaclass=abc.ABCMeta):
    """Base class for EWSElement classes that have an 'email_address' field that we want to provide helpers for."""
    is_complex = True  # FindItem only returns the name, not the email address
    def clean(self, value, version=None):
        if isinstance(value, str):
            value = self.value_cls(email_address=value)
        return super().clean(value, version=version)
    def from_xml(self, elem, account):
        if self.field_uri is None:
            sub_elem = elem.find(self.value_cls.response_tag())
        else:
            sub_elem = elem.find(self.response_tag())
        if sub_elem is not None:
            if self.field_uri is not None:
                # We want the nested Mailbox, not the wrapper element
                nested_elem = sub_elem.find(self.value_cls.response_tag())
                if nested_elem is None:
                    raise ValueError(
                        f"Expected XML element {self.value_cls.response_tag()!r} missing on field {self.name!r}"
                    )
                return self.value_cls.from_xml(elem=nested_elem, account=account)
            return self.value_cls.from_xml(elem=sub_elem, account=account)
        return self.default
class EmailField(BaseEmailField):
    def __init__(self, *args, **kwargs):
        from .properties import Email
        kwargs["value_cls"] = Email
        super().__init__(*args, **kwargs)
class RecipientAddressField(BaseEmailField):
    def __init__(self, *args, **kwargs):
        from .properties import RecipientAddress
        kwargs["value_cls"] = RecipientAddress
        super().__init__(*args, **kwargs)
class MailboxField(BaseEmailField):
    def __init__(self, *args, **kwargs):
        from .properties import Mailbox
        kwargs["value_cls"] = Mailbox
        super().__init__(*args, **kwargs)
class MailboxListField(EWSElementListField):
    def __init__(self, *args, **kwargs):
        from .properties import Mailbox
        kwargs["value_cls"] = Mailbox
        super().__init__(*args, **kwargs)
    def clean(self, value, version=None):
        if value is not None:
            value = [self.value_cls(email_address=s) if isinstance(s, str) else s for s in value]
        return super().clean(value, version=version)
class MemberListField(EWSElementListField):
    def __init__(self, *args, **kwargs):
        from .properties import Member
        kwargs["value_cls"] = Member
        super().__init__(*args, **kwargs)
    def clean(self, value, version=None):
        from .properties import Mailbox
        if value is not None:
            value = [self.value_cls(mailbox=Mailbox(email_address=s)) if isinstance(s, str) else s for s in value]
        return super().clean(value, version=version)
class AttendeesField(EWSElementListField):
    def __init__(self, *args, **kwargs):
        from .properties import Attendee
        kwargs["value_cls"] = Attendee
        super().__init__(*args, **kwargs)
    def clean(self, value, version=None):
        from .properties import Mailbox
        if value is not None:
            value = [
                self.value_cls(mailbox=Mailbox(email_address=s), response_type="Accept") if isinstance(s, str) else s
                for s in value
            ]
        return super().clean(value, version=version)
class AttachmentField(EWSElementListField):
    """A field for item attachments."""
    def __init__(self, *args, **kwargs):
        from .attachments import Attachment
        kwargs["value_cls"] = Attachment
        super().__init__(*args, **kwargs)
    def from_xml(self, elem, account):
        from .attachments import FileAttachment, ItemAttachment
        iter_elem = elem.find(self.response_tag())
        # Look for both FileAttachment and ItemAttachment
        if iter_elem is not None:
            attachments = []
            for att_type in (ItemAttachment, FileAttachment):
                attachments.extend(
                    [att_type.from_xml(elem=e, account=account) for e in iter_elem.findall(att_type.response_tag())]
                )
            return attachments
        return self.default
class LabelField(ChoiceField):
    """A field to hold the label on an IndexedElement."""
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.is_attribute = True
    def from_xml(self, elem, account):
        return elem.get(self.field_uri)
class SubField(Field):
    """A field to hold the value on an IndexedElement."""
    namespace = TNS
    value_cls = str
    def from_xml(self, elem, account):
        return elem.text
    def to_xml(self, value, version):
        return value
    @staticmethod
    def field_uri_xml(field_uri, label):
        from .properties import IndexedFieldURI
        return IndexedFieldURI(field_uri=field_uri, field_index=label).to_xml(version=None)
    def clean(self, value, version=None):
        value = super().clean(value, version=version)
        if self.is_required and not value:
            raise ValueError(f"Value for subfield {self.name!r} must be non-empty")
        return value
    def __hash__(self):
        return hash(self.name)
class EmailSubField(SubField):
    """A field to hold the value on an SingleFieldIndexedElement."""
    value_cls = str
    def from_xml(self, elem, account):
        return elem.text or elem.get("Name")  # Sometimes elem.text is empty. Exchange saves the same in 'Name' attr
class NamedSubField(SubField):
    """A field to hold the value on an MultiFieldIndexedElement."""
    value_cls = str
    def __init__(self, *args, **kwargs):
        self.field_uri = kwargs.pop("field_uri")
        if ":" in self.field_uri:
            raise ValueError("'field_uri' value must not contain a colon")
        super().__init__(*args, **kwargs)
    def from_xml(self, elem, account):
        field_elem = elem.find(self.response_tag())
        val = None if field_elem is None else field_elem.text or None
        if val is not None:
            return val
        return self.default
    def to_xml(self, value, version):
        field_elem = create_element(self.request_tag())
        return set_xml_value(field_elem, value, version=version)
    def field_uri_xml(self, field_uri, label):
        from .properties import IndexedFieldURI
        return IndexedFieldURI(field_uri=f"{field_uri}:{self.field_uri}", field_index=label).to_xml(version=None)
    def request_tag(self):
        return f"t:{self.field_uri}"
    def response_tag(self):
        return f"{{{self.namespace}}}{self.field_uri}"
class IndexedField(EWSElementField, metaclass=abc.ABCMeta):
    """A base class for all indexed fields."""
    PARENT_ELEMENT_NAME = None
    def __init__(self, *args, **kwargs):
        from .indexed_properties import IndexedElement
        value_cls = kwargs["value_cls"]
        if not issubclass(value_cls, IndexedElement):
            raise TypeError(f"'value_cls' {value_cls!r} must be a subclass of type {IndexedElement}")
        super().__init__(*args, **kwargs)
    def to_xml(self, value, version):
        return set_xml_value(create_element(f"t:{self.PARENT_ELEMENT_NAME}"), value, version=version)
    def response_tag(self):
        return f"{{{self.namespace}}}{self.PARENT_ELEMENT_NAME}"
    def __hash__(self):
        return hash(self.field_uri)
class EmailAddressesField(IndexedField):
    is_list = True
    is_complex = True
    PARENT_ELEMENT_NAME = "EmailAddresses"
    def __init__(self, *args, **kwargs):
        from .indexed_properties import EmailAddress
        kwargs["value_cls"] = EmailAddress
        super().__init__(*args, **kwargs)
    def clean(self, value, version=None):
        if value is not None:
            default_labels = self.value_cls.LABEL_CHOICES
            if len(value) > len(default_labels):
                raise ValueError(f"This field can handle at most {len(default_labels)} values (value: {value})")
            tmp = []
            for s, default_label in zip(value, default_labels):
                if not isinstance(s, str):
                    tmp.append(s)
                    continue
                tmp.append(self.value_cls(email=s, label=default_label))
            value = tmp
        return super().clean(value, version=version)
class PhoneNumberField(IndexedField):
    is_list = True
    is_complex = True
    PARENT_ELEMENT_NAME = "PhoneNumbers"
    def __init__(self, *args, **kwargs):
        from .indexed_properties import PhoneNumber
        kwargs["value_cls"] = PhoneNumber
        super().__init__(*args, **kwargs)
class PhysicalAddressField(IndexedField):
    is_list = True
    is_complex = True
    PARENT_ELEMENT_NAME = "PhysicalAddresses"
    def __init__(self, *args, **kwargs):
        from .indexed_properties import PhysicalAddress
        kwargs["value_cls"] = PhysicalAddress
        super().__init__(*args, **kwargs)
class ExtendedPropertyField(Field):
    is_complex = True
    def __init__(self, *args, **kwargs):
        self.value_cls = kwargs.pop("value_cls")
        super().__init__(*args, **kwargs)
    def clean(self, value, version=None):
        if value is None:
            if self.is_required:
                raise ValueError(f"{self.name!r} is a required field")
            return self.default
        if not isinstance(value, self.value_cls):
            # Allow keeping ExtendedProperty field values as their simple Python type, but run clean() anyway
            tmp = self.value_cls(value)
            tmp.clean(version=version)
            return value
        value.clean(version=version)
        return value
    def field_uri_xml(self):
        from .properties import ExtendedFieldURI
        cls = self.value_cls
        return ExtendedFieldURI(
            distinguished_property_set_id=cls.distinguished_property_set_id,
            property_set_id=cls.property_set_id.lower() if cls.property_set_id else None,
            property_tag=cls.property_tag_as_hex(),
            property_name=cls.property_name,
            property_id=value_to_xml_text(cls.property_id) if cls.property_id else None,
            property_type=cls.property_type,
        ).to_xml(version=None)
    def from_xml(self, elem, account):
        extended_properties = elem.findall(self.value_cls.response_tag())
        for extended_property in extended_properties:
            if self.value_cls.is_property_instance(extended_property):
                return self.value_cls.from_xml(elem=extended_property, account=account)
        return self.default
    def to_xml(self, value, version):
        extended_property = create_element(self.value_cls.request_tag())
        set_xml_value(extended_property, self.field_uri_xml(), version=version)
        if isinstance(value, self.value_cls):
            return set_xml_value(extended_property, value, version=version)
        # Allow keeping ExtendedProperty field values as their simple Python type
        return set_xml_value(extended_property, self.value_cls(value), version=version)
    def __hash__(self):
        return hash(self.name)
class ExtendedPropertyListField(ExtendedPropertyField):
    is_list = True
class ItemField(FieldURIField):
    @property
    def value_cls(self):
        from .items import Item
        return Item
    def from_xml(self, elem, account):
        from .items import ITEM_CLASSES
        for item_cls in ITEM_CLASSES:
            item_elem = elem.find(item_cls.response_tag())
            if item_elem is not None:
                return item_cls.from_xml(elem=item_elem, account=account)
        return None
    def to_xml(self, value, version):
        # We don't want to wrap in an Item element
        return value.to_xml(version=version)
class UnknownEntriesField(CharListField):
    def list_elem_tag(self):
        return f"{{{self.namespace}}}UnknownEntry"
class PermissionSetField(EWSElementField):
    is_complex = True
    def __init__(self, *args, **kwargs):
        from .properties import PermissionSet
        kwargs["value_cls"] = PermissionSet
        super().__init__(*args, **kwargs)
class EffectiveRightsField(EWSElementField):
    def __init__(self, *args, **kwargs):
        from .properties import EffectiveRights
        kwargs["value_cls"] = EffectiveRights
        super().__init__(*args, **kwargs)
class BuildField(CharField):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.value_cls = Build
    def from_xml(self, elem, account):
        val = self._get_val_from_elem(elem)
        if val:
            try:
                return self.value_cls.from_hex_string(val)
            except (TypeError, ValueError):
                log.warning("Invalid server version string: %r", val)
        return val
class ProtocolListField(EWSElementListField):
    # There is not containing element for this field. Just multiple 'Protocol' elements on the 'Account' element.
    def __init__(self, *args, **kwargs):
        from .autodiscover.properties import Protocol
        kwargs["value_cls"] = Protocol
        super().__init__(*args, **kwargs)
    def from_xml(self, elem, account):
        return [self.value_cls.from_xml(elem=e, account=account) for e in elem.findall(self.value_cls.response_tag())]
class RoutingTypeField(ChoiceField):
    def __init__(self, *args, **kwargs):
        kwargs["choices"] = {Choice("SMTP"), Choice("EX")}
        kwargs["default"] = "SMTP"
        super().__init__(*args, **kwargs)
class IdElementField(EWSElementField):
    def __init__(self, *args, **kwargs):
        kwargs["is_searchable"] = False
        kwargs["is_read_only"] = True
        super().__init__(*args, **kwargs)
class TypeValueField(FieldURIField):
    """This field type has no value_cls because values may have many types."""
    TYPES_MAP = {
        "Boolean": bool,
        "Integer32": int,
        "UnsignedInteger32": int,
        "Integer64": int,
        "UnsignedInteger64": int,
        # Python doesn't have a single-byte type to represent 'Byte'
        "ByteArray": bytes,
        "String": str,
        "StringArray": str,  # A list of strings
        "DateTime": EWSDateTime,
    }
    TYPES_MAP_REVERSED = {
        bool: "Boolean",
        int: "Integer64",
        # Python doesn't have a single-byte type to represent 'Byte'
        bytes: "ByteArray",
        str: "String",
        datetime.datetime: "DateTime",
        EWSDateTime: "DateTime",
    }
    @classmethod
    def get_type(cls, value):
        if isinstance(value, bytes) and len(value) == 1:
            # This is a single byte. Translate it to the 'Byte' type
            return "Byte"
        if is_iterable(value):
            # We don't allow generators as values, so keep the logic simple
            try:
                first = next(iter(value))
            except StopIteration:
                first = None
            value_type = f"{cls.TYPES_MAP_REVERSED[type(first)]}Array"
            if value_type not in cls.TYPES_MAP:
                raise ValueError(f"{value!r} is not a supported type")
            return value_type
        return cls.TYPES_MAP_REVERSED[type(value)]
    @classmethod
    def is_array_type(cls, value_type):
        return value_type == "StringArray"
    def clean(self, value, version=None):
        if value is None:
            if self.is_required and self.default is None:
                raise ValueError(f"{self.name!r} is a required field with no default")
            return self.default
        return value
    def from_xml(self, elem, account):
        field_elem = elem.find(self.response_tag())
        if field_elem is None:
            return self.default
        value_type_str = get_xml_attr(field_elem, f"{{{TNS}}}Type")
        value = get_xml_attr(field_elem, f"{{{TNS}}}Value")
        if value_type_str == "Byte":
            try:
                # The value is an unsigned integer in the range 0 -> 255. Convert it to a single byte
                return xml_text_to_value(value, int).to_bytes(1, "little", signed=False)
            except OverflowError as e:
                log.warning("Invalid byte value %r (%e)", value, e)
                return None
        value_type = self.TYPES_MAP[value_type_str]
        if self.is_array_type(value_type_str):
            return tuple(xml_text_to_value(value=v, value_type=value_type) for v in value.split(" "))
        return xml_text_to_value(value=value, value_type=value_type)
    def to_xml(self, value, version):
        value_type_str = self.get_type(value)
        if value_type_str == "Byte":
            # A single byte is encoded to an unsigned integer in the range 0 -> 255
            value = int.from_bytes(value, byteorder="little", signed=False)
        elif is_iterable(value):
            value = " ".join(value_to_xml_text(v) for v in value)
        field_elem = create_element(self.request_tag())
        field_elem.append(set_xml_value(create_element("t:Type"), value_type_str, version=version))
        field_elem.append(set_xml_value(create_element("t:Value"), value, version=version))
        return field_elem
class DictionaryField(FieldURIField):
    value_cls = dict
    def from_xml(self, elem, account):
        from .properties import DictionaryEntry
        iter_elem = elem.find(self.response_tag())
        if iter_elem is not None:
            entries = [
                DictionaryEntry.from_xml(elem=e, account=account)
                for e in iter_elem.findall(DictionaryEntry.response_tag())
            ]
            return {e.key: e.value for e in entries}
        return self.default
    def clean(self, value, version=None):
        if isinstance(value, dict):
            cleaned = {}
            for k, v in value.items():
                if type(k) is datetime.datetime:
                    k = EWSDateTime.from_datetime(k)
                if type(v) is datetime.datetime:
                    v = EWSDateTime.from_datetime(v)
                cleaned[k] = v
            value = cleaned
        return super().clean(value=value, version=version)
    def to_xml(self, value, version):
        from .properties import DictionaryEntry
        field_elem = create_element(self.request_tag())
        entries = [DictionaryEntry(key=k, value=v) for k, v in value.items()]
        return set_xml_value(field_elem, entries, version=version)
class PersonaPhoneNumberField(EWSElementField):
    is_complex = True
    def __init__(self, *args, **kwargs):
        from .properties import PhoneNumber
        kwargs["value_cls"] = PhoneNumber
        super().__init__(*args, **kwargs)
class BodyContentAttributedValueField(EWSElementField):
    is_complex = True
    def __init__(self, *args, **kwargs):
        from .properties import BodyContentAttributedValue
        kwargs["value_cls"] = BodyContentAttributedValue
        super().__init__(*args, **kwargs)
class StringAttributedValueField(EWSElementListField):
    def __init__(self, *args, **kwargs):
        from .properties import StringAttributedValue
        kwargs["value_cls"] = StringAttributedValue
        super().__init__(*args, **kwargs)
class PhoneNumberAttributedValueField(EWSElementListField):
    def __init__(self, *args, **kwargs):
        from .properties import PhoneNumberAttributedValue
        kwargs["value_cls"] = PhoneNumberAttributedValue
        super().__init__(*args, **kwargs)
class EmailAddressAttributedValueField(EWSElementListField):
    def __init__(self, *args, **kwargs):
        from .properties import EmailAddressAttributedValue
        kwargs["value_cls"] = EmailAddressAttributedValue
        super().__init__(*args, **kwargs)
class PostalAddressAttributedValueField(EWSElementListField):
    def __init__(self, *args, **kwargs):
        from .properties import PostalAddressAttributedValue
        kwargs["value_cls"] = PostalAddressAttributedValue
        super().__init__(*args, **kwargs)
class GenericEventListField(EWSElementField):
    """A list field that can contain all subclasses of Event."""
    is_list = True
    @property
    def _event_types_map(self):
        return {v.response_tag(): v for v in self.value_classes}
    def __init__(self, *args, **kwargs):
        from .properties import (
            CopiedEvent,
            CreatedEvent,
            DeletedEvent,
            FreeBusyChangedEvent,
            ModifiedEvent,
            MovedEvent,
            NewMailEvent,
            StatusEvent,
        )
        kwargs["value_cls"] = None  # Parent class requires this kwarg
        kwargs["namespace"] = None  # Parent class requires this kwarg
        super().__init__(*args, **kwargs)
        self.value_classes = (
            CopiedEvent,
            CreatedEvent,
            DeletedEvent,
            ModifiedEvent,
            MovedEvent,
            NewMailEvent,
            StatusEvent,
            FreeBusyChangedEvent,
        )
    def from_xml(self, elem, account):
        events = []
        for event in elem:
            # This may or may not be an event element. Could also be other child elements of Notification
            try:
                value_cls = self._event_types_map[event.tag]
            except KeyError:
                continue
            events.append(value_cls.from_xml(elem=event, account=account))
        return events or self.defaultFunctions
- def resolve_field_path(field_path, folder, strict=True)
- 
Take the name of a field, or '__'-delimited path to a subfield, and return the corresponding Field object, label and SubField object. Expand source codedef resolve_field_path(field_path, folder, strict=True): """Take the name of a field, or '__'-delimited path to a subfield, and return the corresponding Field object, label and SubField object. """ from .indexed_properties import MultiFieldIndexedElement, SingleFieldIndexedElement fieldname, label, subfield_name = split_field_path(field_path) field = folder.get_item_field_by_fieldname(fieldname) subfield = None if isinstance(field, IndexedField): if strict and not label: raise ValueError( f"IndexedField path {field_path!r} must specify label, e.g. " f"'{fieldname}__{field.value_cls.get_field_by_fieldname('label').default}'" ) valid_labels = field.value_cls.get_field_by_fieldname("label").supported_choices(version=folder.account.version) if label and label not in valid_labels: raise ValueError( f"Label {label!r} on IndexedField path {field_path!r} must be one of {sorted(valid_labels)}" ) if issubclass(field.value_cls, MultiFieldIndexedElement): if strict and not subfield_name: raise ValueError( f"IndexedField path {field_path!r} must specify subfield, e.g. " f"'{fieldname}__{label}__{field.value_cls.FIELDS[1].name}'" ) if subfield_name: try: subfield = field.value_cls.get_field_by_fieldname(subfield_name) except ValueError: field_names = ", ".join( f.name for f in field.value_cls.supported_fields(version=folder.account.version) ) raise ValueError( f"Subfield {subfield_name!r} on IndexedField path {field_path!r} " f"must be one of {sorted(field_names)}" ) else: if not issubclass(field.value_cls, SingleFieldIndexedElement): raise InvalidTypeError("field.value_cls", field.value_cls, SingleFieldIndexedElement) if subfield_name: raise ValueError( f"IndexedField path {field_path!r} must not specify subfield, e.g. just {fieldname}__{label}'" ) subfield = field.value_cls.value_field(version=folder.account.version) else: if label or subfield_name: raise ValueError(f"Field path {field_path!r} must not specify label or subfield, e.g. just {fieldname!r}") return field, label, subfield
- def split_field_path(field_path)
- 
Split a string path into its field, label and subfield parts. :param field_path: :return Examples: 'start' -> ('start', None, None) 'phone_numbers__PrimaryPhone' -> ('phone_numbers', 'PrimaryPhone', None) 'physical_addresses__Home__street' -> ('physical_addresses', 'Home', 'street') Expand source codedef split_field_path(field_path): """Split a string path into its field, label and subfield parts. :param field_path: :return Examples: 'start' -> ('start', None, None) 'phone_numbers__PrimaryPhone' -> ('phone_numbers', 'PrimaryPhone', None) 'physical_addresses__Home__street' -> ('physical_addresses', 'Home', 'street') """ if not isinstance(field_path, str): raise InvalidTypeError("field_path", field_path, str) search_parts = field_path.split("__") field = search_parts[0] try: label = search_parts[1] except IndexError: label = None try: subfield = search_parts[2] except IndexError: subfield = None return field, label, subfield
Classes
- class AppointmentStateField (*args, **kwargs)
- 
MSDN: https://docs.microsoft.com/en-us/exchange/client-developer/web-service-reference/appointmentstate Expand source codeclass AppointmentStateField(IntegerField): """MSDN: https://docs.microsoft.com/en-us/exchange/client-developer/web-service-reference/appointmentstate""" NONE = "None" MEETING = "Meeting" RECEIVED = "Received" CANCELLED = "Canceled" STATES = { NONE: 0x0000, MEETING: 0x0001, RECEIVED: 0x0002, CANCELLED: 0x0004, } def from_xml(self, elem, account): val = super().from_xml(elem=elem, account=account) if val is None: return val return tuple(name for name, mask in self.STATES.items() if bool(val & mask))AncestorsClass variables- var CANCELLED
- var MEETING
- var NONE
- var RECEIVED
- var STATES
 Inherited members
- class AssociatedCalendarItemIdField (*args, **kwargs)
- 
A generic field for any EWSElement object. Expand source codeclass AssociatedCalendarItemIdField(EWSElementField): is_complex = True def __init__(self, *args, **kwargs): from .properties import AssociatedCalendarItemId kwargs["value_cls"] = AssociatedCalendarItemId super().__init__(*args, **kwargs) def to_xml(self, value, version): return value.to_xml(version=version)AncestorsClass variables- var is_complex
 Inherited members
- class AttachmentField (*args, **kwargs)
- 
A field for item attachments. Expand source codeclass AttachmentField(EWSElementListField): """A field for item attachments.""" def __init__(self, *args, **kwargs): from .attachments import Attachment kwargs["value_cls"] = Attachment super().__init__(*args, **kwargs) def from_xml(self, elem, account): from .attachments import FileAttachment, ItemAttachment iter_elem = elem.find(self.response_tag()) # Look for both FileAttachment and ItemAttachment if iter_elem is not None: attachments = [] for att_type in (ItemAttachment, FileAttachment): attachments.extend( [att_type.from_xml(elem=e, account=account) for e in iter_elem.findall(att_type.response_tag())] ) return attachments return self.defaultAncestorsInherited members
- class AttendeesField (*args, **kwargs)
- 
Like EWSElementField, but for lists of EWSElement objects. Expand source codeclass AttendeesField(EWSElementListField): def __init__(self, *args, **kwargs): from .properties import Attendee kwargs["value_cls"] = Attendee super().__init__(*args, **kwargs) def clean(self, value, version=None): from .properties import Mailbox if value is not None: value = [ self.value_cls(mailbox=Mailbox(email_address=s), response_type="Accept") if isinstance(s, str) else s for s in value ] return super().clean(value, version=version)AncestorsMethods- def clean(self, value, version=None)
- 
Expand source codedef clean(self, value, version=None): from .properties import Mailbox if value is not None: value = [ self.value_cls(mailbox=Mailbox(email_address=s), response_type="Accept") if isinstance(s, str) else s for s in value ] return super().clean(value, version=version)
 Inherited members
- class Base64Field (*args, **kwargs)
- 
A field that handles binary data and automatically Base64 encodes and decodes the data. Expand source codeclass Base64Field(FieldURIField): """A field that handles binary data and automatically Base64 encodes and decodes the data.""" value_cls = bytes is_complex = True def __init__(self, *args, **kwargs): if "is_searchable" not in kwargs: kwargs["is_searchable"] = False super().__init__(*args, **kwargs)AncestorsSubclassesClass variables- var is_complex
- var value_cls
- 
bytes(iterable_of_ints) -> bytes bytes(string, encoding[, errors]) -> bytes bytes(bytes_or_buffer) -> immutable copy of bytes_or_buffer bytes(int) -> bytes object of size given by the parameter initialized with null bytes bytes() -> empty bytes object Construct an immutable array of bytes from: - an iterable yielding integers in range(256) - a text string encoded using the specified encoding - any object implementing the buffer API. - an integer 
 Inherited members
- class BaseEmailField (*args, **kwargs)
- 
Base class for EWSElement classes that have an 'email_address' field that we want to provide helpers for. Expand source codeclass BaseEmailField(EWSElementField, metaclass=abc.ABCMeta): """Base class for EWSElement classes that have an 'email_address' field that we want to provide helpers for.""" is_complex = True # FindItem only returns the name, not the email address def clean(self, value, version=None): if isinstance(value, str): value = self.value_cls(email_address=value) return super().clean(value, version=version) def from_xml(self, elem, account): if self.field_uri is None: sub_elem = elem.find(self.value_cls.response_tag()) else: sub_elem = elem.find(self.response_tag()) if sub_elem is not None: if self.field_uri is not None: # We want the nested Mailbox, not the wrapper element nested_elem = sub_elem.find(self.value_cls.response_tag()) if nested_elem is None: raise ValueError( f"Expected XML element {self.value_cls.response_tag()!r} missing on field {self.name!r}" ) return self.value_cls.from_xml(elem=nested_elem, account=account) return self.value_cls.from_xml(elem=sub_elem, account=account) return self.defaultAncestorsSubclassesClass variables- var is_complex
 Methods- def clean(self, value, version=None)
- 
Expand source codedef clean(self, value, version=None): if isinstance(value, str): value = self.value_cls(email_address=value) return super().clean(value, version=version)
 Inherited members
- class BodyContentAttributedValueField (*args, **kwargs)
- 
A generic field for any EWSElement object. Expand source codeclass BodyContentAttributedValueField(EWSElementField): is_complex = True def __init__(self, *args, **kwargs): from .properties import BodyContentAttributedValue kwargs["value_cls"] = BodyContentAttributedValue super().__init__(*args, **kwargs)AncestorsClass variables- var is_complex
 Inherited members
- class BodyField (*args, **kwargs)
- 
A TextField with specific requirements for the Item body. Expand source codeclass BodyField(TextField): """A TextField with specific requirements for the Item body.""" def __init__(self, *args, **kwargs): from .properties import Body self.value_cls = Body super().__init__(*args, **kwargs) def clean(self, value, version=None): if value is not None and not isinstance(value, self.value_cls): value = self.value_cls(value) return super().clean(value, version=version) def from_xml(self, elem, account): from .properties import Body, HTMLBody field_elem = elem.find(self.response_tag()) val = None if field_elem is None else field_elem.text or None if val is not None: body_type = field_elem.get("BodyType") return {Body.body_type: Body, HTMLBody.body_type: HTMLBody}[body_type](val) return self.default def to_xml(self, value, version): from .properties import Body, HTMLBody body_type = { Body: Body.body_type, HTMLBody: HTMLBody.body_type, }[type(value)] field_elem = create_element(self.request_tag(), attrs=dict(BodyType=body_type)) return set_xml_value(field_elem, value, version=version)AncestorsMethods- def clean(self, value, version=None)
- 
Expand source codedef clean(self, value, version=None): if value is not None and not isinstance(value, self.value_cls): value = self.value_cls(value) return super().clean(value, version=version)
 Inherited members
- class BooleanField (*args, **kwargs)
- 
A field that handles boolean values. Expand source codeclass BooleanField(FieldURIField): """A field that handles boolean values.""" value_cls = boolAncestorsSubclassesClass variables- var value_cls
- 
bool(x) -> bool Returns True when the argument x is true, False otherwise. The builtins True and False are the only two instances of the class bool. The class bool is a subclass of the class int, and cannot be subclassed. 
 Inherited members
- class BuildField (*args, **kwargs)
- 
A field that stores a string value with a limited length. Expand source codeclass BuildField(CharField): def __init__(self, *args, **kwargs): super().__init__(*args, **kwargs) self.value_cls = Build def from_xml(self, elem, account): val = self._get_val_from_elem(elem) if val: try: return self.value_cls.from_hex_string(val) except (TypeError, ValueError): log.warning("Invalid server version string: %r", val) return valAncestorsInherited members
- class CharField (*args, **kwargs)
- 
A field that stores a string value with a limited length. Expand source codeclass CharField(TextField): """A field that stores a string value with a limited length.""" is_complex = False def __init__(self, *args, **kwargs): self.max_length = kwargs.pop("max_length", 255) if not 1 <= self.max_length <= 255: # A field supporting messages longer than 255 chars should be TextField raise ValueError("'max_length' must be in the range 1-255") super().__init__(*args, **kwargs) def clean(self, value, version=None): value = super().clean(value, version=version) if value is not None and len(value) > self.max_length: raise ValueError(f"{self.name!r} value {value!r} exceeds length {self.max_length}") return valueAncestorsSubclassesClass variables- var is_complex
 Methods- def clean(self, value, version=None)
- 
Expand source codedef clean(self, value, version=None): value = super().clean(value, version=version) if value is not None and len(value) > self.max_length: raise ValueError(f"{self.name!r} value {value!r} exceeds length {self.max_length}") return value
 Inherited members
- class CharListField (*args, **kwargs)
- 
Like TextListField, but for string values with a limited length. Expand source codeclass CharListField(TextListField): """Like TextListField, but for string values with a limited length.""" def __init__(self, *args, **kwargs): self.max_length = kwargs.pop("max_length", 255) if not 1 <= self.max_length <= 255: # A field supporting messages longer than 255 chars should be TextField raise ValueError("'max_length' must be in the range 1-255") super().__init__(*args, **kwargs) def clean(self, value, version=None): value = super().clean(value, version=version) if value is not None: for v in value: if len(v) > self.max_length: raise ValueError(f"{self.name!r} value {v!r} exceeds length {self.max_length}") return valueAncestorsSubclassesMethods- def clean(self, value, version=None)
- 
Expand source codedef clean(self, value, version=None): value = super().clean(value, version=version) if value is not None: for v in value: if len(v) > self.max_length: raise ValueError(f"{self.name!r} value {v!r} exceeds length {self.max_length}") return value
 Inherited members
- class Choice (value, *args, **kwargs)
- 
Implement versioned choices for the ChoiceField field. Expand source codeclass Choice(SupportedVersionInstanceMixIn): """Implement versioned choices for the ChoiceField field.""" def __init__(self, value, *args, **kwargs): self.value = value super().__init__(*args, **kwargs)Ancestors
- class ChoiceField (*args, **kwargs)
- 
Like CharField, but restricts the value to a limited set of strings. Expand source codeclass ChoiceField(CharField): """Like CharField, but restricts the value to a limited set of strings.""" def __init__(self, *args, **kwargs): self.choices = kwargs.pop("choices") super().__init__(*args, **kwargs) def clean(self, value, version=None): value = super().clean(value, version=version) if value is None: return None valid_choices = [c.value for c in self.choices] if version: valid_choices_for_version = self.supported_choices(version=version) if value in valid_choices_for_version: return value if value in valid_choices: raise InvalidChoiceForVersion( f"Choice {self.name!r} only supports server versions from {self.supported_from or '*'} to " f"{self.deprecated_from or '*'} (server has {version})" ) else: if value in valid_choices: return value raise ValueError(f"Invalid choice {value!r} for field {self.name!r}. Valid choices are {sorted(valid_choices)}") def supported_choices(self, version): return tuple(c.value for c in self.choices if c.supports_version(version))AncestorsSubclassesMethods- def clean(self, value, version=None)
- 
Expand source codedef clean(self, value, version=None): value = super().clean(value, version=version) if value is None: return None valid_choices = [c.value for c in self.choices] if version: valid_choices_for_version = self.supported_choices(version=version) if value in valid_choices_for_version: return value if value in valid_choices: raise InvalidChoiceForVersion( f"Choice {self.name!r} only supports server versions from {self.supported_from or '*'} to " f"{self.deprecated_from or '*'} (server has {version})" ) else: if value in valid_choices: return value raise ValueError(f"Invalid choice {value!r} for field {self.name!r}. Valid choices are {sorted(valid_choices)}")
- def supported_choices(self, version)
- 
Expand source codedef supported_choices(self, version): return tuple(c.value for c in self.choices if c.supports_version(version))
 Inherited members
- class CultureField (*args, **kwargs)
- 
Helper to mark strings that are # RFC 1766 culture values. Expand source codeclass CultureField(CharField): """Helper to mark strings that are # RFC 1766 culture values."""AncestorsInherited members
- class DateField (*args, **kwargs)
- 
A field that handles date values. Expand source codeclass DateField(FieldURIField): """A field that handles date values.""" value_cls = EWSDate def clean(self, value, version=None): # Allow plain datetime.date values as input if type(value) is datetime.date: value = self.value_cls.from_date(value) return super().clean(value=value, version=version)AncestorsSubclassesClass variables- var value_cls
- 
Extends the normal date implementation to satisfy EWS. 
 Methods- def clean(self, value, version=None)
- 
Expand source codedef clean(self, value, version=None): # Allow plain datetime.date values as input if type(value) is datetime.date: value = self.value_cls.from_date(value) return super().clean(value=value, version=version)
 Inherited members
- class DateOrDateTimeField (*args, **kwargs)
- 
This field can handle both EWSDate and EWSDateTime. Used for calendar items where 'start' and 'end' values are conceptually dates when the calendar item is an all-day event, but datetimes in all other cases, and for recurrences where the returned 'start' and 'end' values may be either dates or datetimes depending on whether the recurring item is a task or a calendar item. For all-day calendar items, we assume both start and end dates are inclusive. For filtering kwarg validation and other places where we must decide on a specific class, we settle on datetime. Expand source codeclass DateOrDateTimeField(DateTimeField): """This field can handle both EWSDate and EWSDateTime. Used for calendar items where 'start' and 'end' values are conceptually dates when the calendar item is an all-day event, but datetimes in all other cases, and for recurrences where the returned 'start' and 'end' values may be either dates or datetimes depending on whether the recurring item is a task or a calendar item. For all-day calendar items, we assume both start and end dates are inclusive. For filtering kwarg validation and other places where we must decide on a specific class, we settle on datetime. """ def __init__(self, *args, **kwargs): super().__init__(*args, **kwargs) # Create internal field to handle date-only logic self._date_field = DateField(*args, **kwargs) def clean(self, value, version=None): # Most calendar items will contain datetime values. We can't access the is_all_day value here, so CalendarItem # must handle that sanity check. if type(value) in (EWSDate, datetime.date): return self._date_field.clean(value=value, version=version) return super().clean(value=value, version=version) def from_xml(self, elem, account): val = self._get_val_from_elem(elem) if val is not None and len(val) == 16: # This is a date format with timezone info, as sent by task recurrences. Eg: '2006-01-09+01:00' return self._date_field.from_xml(elem=elem, account=account) return super().from_xml(elem=elem, account=account)AncestorsMethods- def clean(self, value, version=None)
- 
Expand source codedef clean(self, value, version=None): # Most calendar items will contain datetime values. We can't access the is_all_day value here, so CalendarItem # must handle that sanity check. if type(value) in (EWSDate, datetime.date): return self._date_field.clean(value=value, version=version) return super().clean(value=value, version=version)
 Inherited members
- class DateTimeBackedDateField (*args, **kwargs)
- 
A field that acts like a date, but where values are sent to EWS as EWSDateTime. Expand source codeclass DateTimeBackedDateField(DateField): """A field that acts like a date, but where values are sent to EWS as EWSDateTime.""" def __init__(self, *args, **kwargs): # Not all fields assume a default time of 00:00, so make this configurable self._default_time = kwargs.pop("default_time", datetime.time(0, 0)) super().__init__(*args, **kwargs) # Create internal field to handle datetime-only logic self._datetime_field = DateTimeField(*args, **kwargs) def date_to_datetime(self, value): return self._datetime_field.value_cls.combine(value, self._default_time).replace(tzinfo=UTC) def from_xml(self, elem, account): val = self._get_val_from_elem(elem) if val is not None and len(val) == 25: # This is a datetime string with timezone info, e.g. '2021-03-01T21:55:54+00:00'. We don't want to have # datetime values converted to UTC before converting to date. EWSDateTime.from_string() insists on # converting to UTC, but we don't have an EWSTimeZone we can convert the timezone info to. Instead, parse # the string with .fromisoformat(). return datetime.datetime.fromisoformat(val).date() # Revert to default parsing of datetime strings res = self._datetime_field.from_xml(elem=elem, account=account) if res is None: return res return res.date() def to_xml(self, value, version): # Convert date to datetime value = self.date_to_datetime(value) return self._datetime_field.to_xml(value=value, version=version)AncestorsMethods- def date_to_datetime(self, value)
- 
Expand source codedef date_to_datetime(self, value): return self._datetime_field.value_cls.combine(value, self._default_time).replace(tzinfo=UTC)
 Inherited members
- class DateTimeField (*args, **kwargs)
- 
A field that handles datetime values. Expand source codeclass DateTimeField(FieldURIField): """A field that handles datetime values.""" value_cls = EWSDateTime def clean(self, value, version=None): if isinstance(value, datetime.datetime): if not value.tzinfo: raise ValueError(f"Value {value!r} on field {self.name!r} must be timezone aware") if type(value) is datetime.datetime: value = self.value_cls.from_datetime(value) return super().clean(value, version=version) def from_xml(self, elem, account): val = self._get_val_from_elem(elem) if val is not None: try: return self.value_cls.from_string(val) except ValueError as e: if isinstance(e, NaiveDateTimeNotAllowed): # We encountered a naive datetime if account: # Convert to timezone-aware datetime using the default timezone of the account tz = account.default_timezone log.info("Found naive datetime %s on field %s. Assuming timezone %s", e.local_dt, self.name, tz) return e.local_dt.replace(tzinfo=tz) # There's nothing we can do but return the naive date. It's better than assuming e.g. UTC. log.warning("Returning naive datetime %s on field %s", e.local_dt, self.name) return e.local_dt log.info("Cannot convert value '%s' on field '%s' to type %s", val, self.name, self.value_cls) return None return self.defaultAncestorsSubclassesClass variables- var value_cls
- 
Extends the normal datetime implementation to satisfy EWS. 
 Methods- def clean(self, value, version=None)
- 
Expand source codedef clean(self, value, version=None): if isinstance(value, datetime.datetime): if not value.tzinfo: raise ValueError(f"Value {value!r} on field {self.name!r} must be timezone aware") if type(value) is datetime.datetime: value = self.value_cls.from_datetime(value) return super().clean(value, version=version)
 Inherited members
- class DecimalField (*args, **kwargs)
- 
A field that handles decimal values. Expand source codeclass DecimalField(IntegerField): """A field that handles decimal values.""" value_cls = DecimalAncestorsInherited members
- class DictionaryField (*args, **kwargs)
- 
A field that has a FieldURI value in EWS. This means it's value is contained in an XML element or attribute. It may additionally be a label for searching, filtering and limiting fields. In that case, the FieldURI format will be 'itemtype:FieldName' Expand source codeclass DictionaryField(FieldURIField): value_cls = dict def from_xml(self, elem, account): from .properties import DictionaryEntry iter_elem = elem.find(self.response_tag()) if iter_elem is not None: entries = [ DictionaryEntry.from_xml(elem=e, account=account) for e in iter_elem.findall(DictionaryEntry.response_tag()) ] return {e.key: e.value for e in entries} return self.default def clean(self, value, version=None): if isinstance(value, dict): cleaned = {} for k, v in value.items(): if type(k) is datetime.datetime: k = EWSDateTime.from_datetime(k) if type(v) is datetime.datetime: v = EWSDateTime.from_datetime(v) cleaned[k] = v value = cleaned return super().clean(value=value, version=version) def to_xml(self, value, version): from .properties import DictionaryEntry field_elem = create_element(self.request_tag()) entries = [DictionaryEntry(key=k, value=v) for k, v in value.items()] return set_xml_value(field_elem, entries, version=version)AncestorsClass variables- var value_cls
- 
dict() -> new empty dictionary dict(mapping) -> new dictionary initialized from a mapping object's (key, value) pairs dict(iterable) -> new dictionary initialized as if via: d = {} for k, v in iterable: d[k] = v dict(**kwargs) -> new dictionary initialized with the name=value pairs in the keyword argument list. For example: dict(one=1, two=2) 
 Methods- def clean(self, value, version=None)
- 
Expand source codedef clean(self, value, version=None): if isinstance(value, dict): cleaned = {} for k, v in value.items(): if type(k) is datetime.datetime: k = EWSDateTime.from_datetime(k) if type(v) is datetime.datetime: v = EWSDateTime.from_datetime(v) cleaned[k] = v value = cleaned return super().clean(value=value, version=version)
 Inherited members
- class EWSElementField (*args, **kwargs)
- 
A generic field for any EWSElement object. Expand source codeclass EWSElementField(FieldURIField): """A generic field for any EWSElement object.""" def __init__(self, *args, **kwargs): self._value_cls = kwargs.pop("value_cls") if "namespace" not in kwargs: kwargs["namespace"] = self.value_cls.NAMESPACE super().__init__(*args, **kwargs) @property def value_cls(self): if isinstance(self._value_cls, str): # Support 'value_cls' as string to allow self-referencing classes. The class must be importable from the # top-level module. self._value_cls = getattr(import_module(self.__module__.split(".")[0]), self._value_cls) return self._value_cls def from_xml(self, elem, account): if self.is_list: iter_elem = elem.find(self.response_tag()) if iter_elem is not None: return [ self.value_cls.from_xml(elem=e, account=account) for e in iter_elem.findall(self.value_cls.response_tag()) ] else: if self.field_uri is None: sub_elem = elem.find(self.value_cls.response_tag()) else: sub_elem = elem.find(self.response_tag()) if sub_elem is not None: return self.value_cls.from_xml(elem=sub_elem, account=account) return self.default def to_xml(self, value, version): if self.field_uri is None: return value.to_xml(version=version) field_elem = create_element(self.request_tag()) return set_xml_value(field_elem, value, version=version)AncestorsSubclasses- AssociatedCalendarItemIdField
- BaseEmailField
- BodyContentAttributedValueField
- EWSElementListField
- EffectiveRightsField
- GenericEventListField
- IdElementField
- IndexedField
- OccurrenceField
- PermissionSetField
- PersonaPhoneNumberField
- RecurrenceField
- ReferenceItemIdField
- TaskRecurrenceField
 Instance variables- var value_cls
- 
Expand source code@property def value_cls(self): if isinstance(self._value_cls, str): # Support 'value_cls' as string to allow self-referencing classes. The class must be importable from the # top-level module. self._value_cls = getattr(import_module(self.__module__.split(".")[0]), self._value_cls) return self._value_cls
 Inherited members
- class EWSElementListField (*args, **kwargs)
- 
Like EWSElementField, but for lists of EWSElement objects. Expand source codeclass EWSElementListField(EWSElementField): """Like EWSElementField, but for lists of EWSElement objects.""" is_list = True is_complex = TrueAncestorsSubclasses- AttachmentField
- AttendeesField
- EmailAddressAttributedValueField
- MailboxListField
- MemberListField
- MessageHeaderField
- PhoneNumberAttributedValueField
- PostalAddressAttributedValueField
- ProtocolListField
- StringAttributedValueField
- TransitionListField
 Class variables- var is_complex
- var is_list
 Inherited members
- class EffectiveRightsField (*args, **kwargs)
- 
A generic field for any EWSElement object. Expand source codeclass EffectiveRightsField(EWSElementField): def __init__(self, *args, **kwargs): from .properties import EffectiveRights kwargs["value_cls"] = EffectiveRights super().__init__(*args, **kwargs)AncestorsInherited members
- class EmailAddressAttributedValueField (*args, **kwargs)
- 
Like EWSElementField, but for lists of EWSElement objects. Expand source codeclass EmailAddressAttributedValueField(EWSElementListField): def __init__(self, *args, **kwargs): from .properties import EmailAddressAttributedValue kwargs["value_cls"] = EmailAddressAttributedValue super().__init__(*args, **kwargs)AncestorsInherited members
- class EmailAddressField (*args, **kwargs)
- 
A helper class used for email address string that we can use for email validation. Expand source codeclass EmailAddressField(CharField): """A helper class used for email address string that we can use for email validation."""AncestorsInherited members
- class EmailAddressesField (*args, **kwargs)
- 
A base class for all indexed fields. Expand source codeclass EmailAddressesField(IndexedField): is_list = True is_complex = True PARENT_ELEMENT_NAME = "EmailAddresses" def __init__(self, *args, **kwargs): from .indexed_properties import EmailAddress kwargs["value_cls"] = EmailAddress super().__init__(*args, **kwargs) def clean(self, value, version=None): if value is not None: default_labels = self.value_cls.LABEL_CHOICES if len(value) > len(default_labels): raise ValueError(f"This field can handle at most {len(default_labels)} values (value: {value})") tmp = [] for s, default_label in zip(value, default_labels): if not isinstance(s, str): tmp.append(s) continue tmp.append(self.value_cls(email=s, label=default_label)) value = tmp return super().clean(value, version=version)AncestorsClass variables- var PARENT_ELEMENT_NAME
- var is_complex
- var is_list
 Methods- def clean(self, value, version=None)
- 
Expand source codedef clean(self, value, version=None): if value is not None: default_labels = self.value_cls.LABEL_CHOICES if len(value) > len(default_labels): raise ValueError(f"This field can handle at most {len(default_labels)} values (value: {value})") tmp = [] for s, default_label in zip(value, default_labels): if not isinstance(s, str): tmp.append(s) continue tmp.append(self.value_cls(email=s, label=default_label)) value = tmp return super().clean(value, version=version)
 Inherited members
- class EmailField (*args, **kwargs)
- 
Base class for EWSElement classes that have an 'email_address' field that we want to provide helpers for. Expand source codeclass EmailField(BaseEmailField): def __init__(self, *args, **kwargs): from .properties import Email kwargs["value_cls"] = Email super().__init__(*args, **kwargs)AncestorsInherited members
- class EmailSubField (name=None, is_required=False, is_required_after_save=False, is_read_only=False, is_read_only_after_send=False, is_searchable=True, is_attribute=False, default=None, *args, **kwargs)
- 
A field to hold the value on an SingleFieldIndexedElement. Expand source codeclass EmailSubField(SubField): """A field to hold the value on an SingleFieldIndexedElement.""" value_cls = str def from_xml(self, elem, account): return elem.text or elem.get("Name") # Sometimes elem.text is empty. Exchange saves the same in 'Name' attrAncestorsInherited members
- class EnumAsIntField (*args, **kwargs)
- 
Like EnumField, but communicates values with EWS in integers. Expand source codeclass EnumAsIntField(EnumField): """Like EnumField, but communicates values with EWS in integers.""" def from_xml(self, elem, account): return super(EnumField, self).from_xml(elem=elem, account=account) def to_xml(self, value, version): field_elem = create_element(self.request_tag()) return set_xml_value(field_elem, value, version=version)AncestorsInherited members
- class EnumField (*args, **kwargs)
- 
A field type where you can enter either the 1-based index in an enum (tuple), or the enum value. Values will be stored internally as integers but output in XML as strings. Expand source codeclass EnumField(IntegerField): """A field type where you can enter either the 1-based index in an enum (tuple), or the enum value. Values will be stored internally as integers but output in XML as strings. """ def __init__(self, *args, **kwargs): self.enum = kwargs.pop("enum") # Set different min/max defaults than IntegerField if "max" in kwargs: raise AttributeError("EnumField does not support the 'max' attribute") kwargs["min"] = kwargs.pop("min", 1) kwargs["max"] = kwargs["min"] + len(self.enum) - 1 super().__init__(*args, **kwargs) def clean(self, value, version=None): if self.is_list: value = list(value) # Convert to something we can index for i, v in enumerate(value): if isinstance(v, str): if v not in self.enum: raise ValueError(f"List value {v!r} on field {self.name!r} must be one of {sorted(self.enum)}") value[i] = self.enum.index(v) + 1 if not value: raise ValueError(f"Value {value!r} on field {self.name!r} must not be empty") if len(value) > len(set(value)): raise ValueError(f"List entries {value!r} on field {self.name!r} must be unique") else: if isinstance(value, str): if value not in self.enum: raise ValueError(f"Value {value!r} on field {self.name!r} must be one of {sorted(self.enum)}") value = self.enum.index(value) + 1 return super().clean(value, version=version) def as_string(self, value): # Converts an integer in the enum to its equivalent string if self.is_list: return [self.enum[v - 1] for v in sorted(value)] return self.enum[value - 1] def from_xml(self, elem, account): val = self._get_val_from_elem(elem) if val is not None: try: if self.is_list: return [self.enum.index(v) + 1 for v in val.split(" ")] return self.enum.index(val) + 1 except ValueError: log.warning("Cannot convert value '%s' on field '%s' to type %s", val, self.name, self.value_cls) return None return self.default def to_xml(self, value, version): field_elem = create_element(self.request_tag()) if self.is_list: return set_xml_value(field_elem, " ".join(self.as_string(value)), version=version) return set_xml_value(field_elem, self.as_string(value), version=version)AncestorsSubclassesMethods- def as_string(self, value)
- 
Expand source codedef as_string(self, value): # Converts an integer in the enum to its equivalent string if self.is_list: return [self.enum[v - 1] for v in sorted(value)] return self.enum[value - 1]
- def clean(self, value, version=None)
- 
Expand source codedef clean(self, value, version=None): if self.is_list: value = list(value) # Convert to something we can index for i, v in enumerate(value): if isinstance(v, str): if v not in self.enum: raise ValueError(f"List value {v!r} on field {self.name!r} must be one of {sorted(self.enum)}") value[i] = self.enum.index(v) + 1 if not value: raise ValueError(f"Value {value!r} on field {self.name!r} must not be empty") if len(value) > len(set(value)): raise ValueError(f"List entries {value!r} on field {self.name!r} must be unique") else: if isinstance(value, str): if value not in self.enum: raise ValueError(f"Value {value!r} on field {self.name!r} must be one of {sorted(self.enum)}") value = self.enum.index(value) + 1 return super().clean(value, version=version)
 Inherited members
- class EnumListField (*args, **kwargs)
- 
Like EnumField, but for lists of enum values. Expand source codeclass EnumListField(EnumField): """Like EnumField, but for lists of enum values.""" is_list = TrueAncestorsSubclassesClass variables- var is_list
 Inherited members
- class ExtendedPropertyField (*args, **kwargs)
- 
Holds information related to an item field. Expand source codeclass ExtendedPropertyField(Field): is_complex = True def __init__(self, *args, **kwargs): self.value_cls = kwargs.pop("value_cls") super().__init__(*args, **kwargs) def clean(self, value, version=None): if value is None: if self.is_required: raise ValueError(f"{self.name!r} is a required field") return self.default if not isinstance(value, self.value_cls): # Allow keeping ExtendedProperty field values as their simple Python type, but run clean() anyway tmp = self.value_cls(value) tmp.clean(version=version) return value value.clean(version=version) return value def field_uri_xml(self): from .properties import ExtendedFieldURI cls = self.value_cls return ExtendedFieldURI( distinguished_property_set_id=cls.distinguished_property_set_id, property_set_id=cls.property_set_id.lower() if cls.property_set_id else None, property_tag=cls.property_tag_as_hex(), property_name=cls.property_name, property_id=value_to_xml_text(cls.property_id) if cls.property_id else None, property_type=cls.property_type, ).to_xml(version=None) def from_xml(self, elem, account): extended_properties = elem.findall(self.value_cls.response_tag()) for extended_property in extended_properties: if self.value_cls.is_property_instance(extended_property): return self.value_cls.from_xml(elem=extended_property, account=account) return self.default def to_xml(self, value, version): extended_property = create_element(self.value_cls.request_tag()) set_xml_value(extended_property, self.field_uri_xml(), version=version) if isinstance(value, self.value_cls): return set_xml_value(extended_property, value, version=version) # Allow keeping ExtendedProperty field values as their simple Python type return set_xml_value(extended_property, self.value_cls(value), version=version) def __hash__(self): return hash(self.name)AncestorsSubclassesClass variables- var is_complex
 Methods- def clean(self, value, version=None)
- 
Expand source codedef clean(self, value, version=None): if value is None: if self.is_required: raise ValueError(f"{self.name!r} is a required field") return self.default if not isinstance(value, self.value_cls): # Allow keeping ExtendedProperty field values as their simple Python type, but run clean() anyway tmp = self.value_cls(value) tmp.clean(version=version) return value value.clean(version=version) return value
- def field_uri_xml(self)
- 
Expand source codedef field_uri_xml(self): from .properties import ExtendedFieldURI cls = self.value_cls return ExtendedFieldURI( distinguished_property_set_id=cls.distinguished_property_set_id, property_set_id=cls.property_set_id.lower() if cls.property_set_id else None, property_tag=cls.property_tag_as_hex(), property_name=cls.property_name, property_id=value_to_xml_text(cls.property_id) if cls.property_id else None, property_type=cls.property_type, ).to_xml(version=None)
 Inherited members
- class ExtendedPropertyListField (*args, **kwargs)
- 
Holds information related to an item field. Expand source codeclass ExtendedPropertyListField(ExtendedPropertyField): is_list = TrueAncestorsClass variables- var is_list
 Inherited members
- class Field (name=None, is_required=False, is_required_after_save=False, is_read_only=False, is_read_only_after_send=False, is_searchable=True, is_attribute=False, default=None, *args, **kwargs)
- 
Holds information related to an item field. Expand source codeclass Field(SupportedVersionInstanceMixIn, metaclass=abc.ABCMeta): """Holds information related to an item field.""" value_cls = None is_list = False # Is the field a complex EWS type? Quoting the EWS FindItem docs: # # The FindItem operation returns only the first 512 bytes of any streamable property. For Unicode, it returns # the first 255 characters by using a null-terminated Unicode string. It does not return any of the message # body formats or the recipient lists. # is_complex = False def __init__( self, name=None, is_required=False, is_required_after_save=False, is_read_only=False, is_read_only_after_send=False, is_searchable=True, is_attribute=False, default=None, *args, **kwargs, ): self.name = name # Usually set by the EWSMeta metaclass self.default = default # Default value if none is given self.is_required = is_required # Some fields cannot be deleted on update. Default to True if 'is_required' is set self.is_required_after_save = is_required or is_required_after_save self.is_read_only = is_read_only # Set this for fields that raise ErrorInvalidPropertyUpdateSentMessage on update after send. Default to True # if 'is_read_only' is set self.is_read_only_after_send = is_read_only or is_read_only_after_send # Define whether the field can be used in a QuerySet. For some reason, EWS disallows searching on some fields, # instead throwing ErrorInvalidValueForProperty self.is_searchable = is_searchable # When true, this field is treated as an XML attribute instead of an element self.is_attribute = is_attribute super().__init__(*args, **kwargs) def clean(self, value, version=None): if version and not self.supports_version(version): raise InvalidFieldForVersion( f"Field {self.name!r} does not support EWS builds prior to {self.supported_from} (server has {version})" ) if value is None: if self.is_required and self.default is None: raise ValueError(f"{self.name!r} is a required field with no default") return self.default if self.is_list: if not is_iterable(value): raise TypeError(f"Field {self.name!r} value {value!r} must be of type {list}") for v in value: if not isinstance(v, self.value_cls): raise TypeError(f"Field {self.name!r} value {v!r} must be of type {self.value_cls}") if hasattr(v, "clean"): v.clean(version=version) else: if not isinstance(value, self.value_cls): raise TypeError(f"Field {self.name!r} value {value!r} must be of type {self.value_cls}") if hasattr(value, "clean"): value.clean(version=version) return value @abc.abstractmethod def from_xml(self, elem, account): """Read a value from the given element""" @abc.abstractmethod def to_xml(self, value, version): """Convert this field to an XML element""" def __eq__(self, other): return hash(self) == hash(other) @abc.abstractmethod def __hash__(self): """Field instances must be hashable""" def __repr__(self): args_str = ", ".join( f"{f}={getattr(self, f)!r}" for f in ("name", "value_cls", "is_list", "is_complex", "default") ) return f"{self.__class__.__name__}({args_str})"AncestorsSubclassesClass variables- var is_complex
- var is_list
- var value_cls
 Methods- def clean(self, value, version=None)
- 
Expand source codedef clean(self, value, version=None): if version and not self.supports_version(version): raise InvalidFieldForVersion( f"Field {self.name!r} does not support EWS builds prior to {self.supported_from} (server has {version})" ) if value is None: if self.is_required and self.default is None: raise ValueError(f"{self.name!r} is a required field with no default") return self.default if self.is_list: if not is_iterable(value): raise TypeError(f"Field {self.name!r} value {value!r} must be of type {list}") for v in value: if not isinstance(v, self.value_cls): raise TypeError(f"Field {self.name!r} value {v!r} must be of type {self.value_cls}") if hasattr(v, "clean"): v.clean(version=version) else: if not isinstance(value, self.value_cls): raise TypeError(f"Field {self.name!r} value {value!r} must be of type {self.value_cls}") if hasattr(value, "clean"): value.clean(version=version) return value
- def from_xml(self, elem, account)
- 
Read a value from the given element Expand source code@abc.abstractmethod def from_xml(self, elem, account): """Read a value from the given element"""
- def to_xml(self, value, version)
- 
Convert this field to an XML element Expand source code@abc.abstractmethod def to_xml(self, value, version): """Convert this field to an XML element"""
 
- class FieldOrder (field_path, reverse=False)
- 
Holds values needed to call server-side sorting on a single field path. :param field_path: A FieldPath instance :param reverse: A bool Expand source codeclass FieldOrder: """Holds values needed to call server-side sorting on a single field path.""" def __init__(self, field_path, reverse=False): """ :param field_path: A FieldPath instance :param reverse: A bool """ self.field_path = field_path self.reverse = reverse @classmethod def from_string(cls, field_path, folder): return cls( field_path=FieldPath.from_string(field_path=field_path.lstrip("-"), folder=folder, strict=True), reverse=field_path.startswith("-"), ) def to_xml(self): field_order = create_element("t:FieldOrder", attrs=dict(Order="Descending" if self.reverse else "Ascending")) field_order.append(self.field_path.to_xml()) return field_orderStatic methods- def from_string(field_path, folder)
- 
Expand source code@classmethod def from_string(cls, field_path, folder): return cls( field_path=FieldPath.from_string(field_path=field_path.lstrip("-"), folder=folder, strict=True), reverse=field_path.startswith("-"), )
 Methods- def to_xml(self)
- 
Expand source codedef to_xml(self): field_order = create_element("t:FieldOrder", attrs=dict(Order="Descending" if self.reverse else "Ascending")) field_order.append(self.field_path.to_xml()) return field_order
 
- class FieldPath (field, label=None, subfield=None)
- 
Holds values needed to point to a single field. For indexed properties, we allow setting either field, field and label, or field, label and subfield. This allows pointing to either the full indexed property set, a property with a specific label, or a particular subfield field on that property. :param field: A FieldURIField or ExtendedPropertyField instance :param label: a str :param subfield: A SubField instance Expand source codeclass FieldPath: """Holds values needed to point to a single field. For indexed properties, we allow setting either field, field and label, or field, label and subfield. This allows pointing to either the full indexed property set, a property with a specific label, or a particular subfield field on that property. """ def __init__(self, field, label=None, subfield=None): """ :param field: A FieldURIField or ExtendedPropertyField instance :param label: a str :param subfield: A SubField instance """ # 'label' and 'subfield' are only used for IndexedField fields self.field = field self.label = label self.subfield = subfield @classmethod def from_string(cls, field_path, folder, strict=False): field, label, subfield = resolve_field_path(field_path, folder=folder, strict=strict) return cls(field=field, label=label, subfield=subfield) def get_value(self, item): # For indexed properties, get either the full property set, the property with matching label, or a particular # subfield. if self.label: for sub_item in getattr(item, self.field.name): if sub_item.label == self.label: if self.subfield: return getattr(sub_item, self.subfield.name) return sub_item return None # No item with this label return getattr(item, self.field.name) def get_sort_value(self, item): # For fields that allow values of different types, we need to return a value that is val = self.get_value(item) if isinstance(self.field, DateOrDateTimeField) and isinstance(val, EWSDate): return item.date_to_datetime(field_name=self.field.name) return val def to_xml(self): if isinstance(self.field, IndexedField): if not self.label or not self.subfield: raise ValueError(f"Field path for indexed field {self.field.name!r} is missing label and/or subfield") return self.subfield.field_uri_xml(field_uri=self.field.field_uri, label=self.label) return self.field.field_uri_xml() def expand(self, version): # If this path does not point to a specific subfield on an indexed property, return all the possible path # combinations for this field path. if isinstance(self.field, IndexedField): labels = ( [self.label] if self.label else self.field.value_cls.get_field_by_fieldname("label").supported_choices(version=version) ) subfields = [self.subfield] if self.subfield else self.field.value_cls.supported_fields(version=version) for label in labels: for subfield in subfields: yield FieldPath(field=self.field, label=label, subfield=subfield) else: yield self @property def path(self): if self.label: from .indexed_properties import SingleFieldIndexedElement if issubclass(self.field.value_cls, SingleFieldIndexedElement) or not self.subfield: return f"{self.field.name}__{self.label}" return f"{self.field.name}__{self.label}__{self.subfield.name}" return self.field.name def __eq__(self, other): return hash(self) == hash(other) def __str__(self): return self.path def __repr__(self): return self.__class__.__name__ + repr((self.field, self.label, self.subfield)) def __hash__(self): return hash((self.field, self.label, self.subfield))Static methods- def from_string(field_path, folder, strict=False)
- 
Expand source code@classmethod def from_string(cls, field_path, folder, strict=False): field, label, subfield = resolve_field_path(field_path, folder=folder, strict=strict) return cls(field=field, label=label, subfield=subfield)
 Instance variables- var path
- 
Expand source code@property def path(self): if self.label: from .indexed_properties import SingleFieldIndexedElement if issubclass(self.field.value_cls, SingleFieldIndexedElement) or not self.subfield: return f"{self.field.name}__{self.label}" return f"{self.field.name}__{self.label}__{self.subfield.name}" return self.field.name
 Methods- def expand(self, version)
- 
Expand source codedef expand(self, version): # If this path does not point to a specific subfield on an indexed property, return all the possible path # combinations for this field path. if isinstance(self.field, IndexedField): labels = ( [self.label] if self.label else self.field.value_cls.get_field_by_fieldname("label").supported_choices(version=version) ) subfields = [self.subfield] if self.subfield else self.field.value_cls.supported_fields(version=version) for label in labels: for subfield in subfields: yield FieldPath(field=self.field, label=label, subfield=subfield) else: yield self
- def get_sort_value(self, item)
- 
Expand source codedef get_sort_value(self, item): # For fields that allow values of different types, we need to return a value that is val = self.get_value(item) if isinstance(self.field, DateOrDateTimeField) and isinstance(val, EWSDate): return item.date_to_datetime(field_name=self.field.name) return val
- def get_value(self, item)
- 
Expand source codedef get_value(self, item): # For indexed properties, get either the full property set, the property with matching label, or a particular # subfield. if self.label: for sub_item in getattr(item, self.field.name): if sub_item.label == self.label: if self.subfield: return getattr(sub_item, self.subfield.name) return sub_item return None # No item with this label return getattr(item, self.field.name)
- def to_xml(self)
- 
Expand source codedef to_xml(self): if isinstance(self.field, IndexedField): if not self.label or not self.subfield: raise ValueError(f"Field path for indexed field {self.field.name!r} is missing label and/or subfield") return self.subfield.field_uri_xml(field_uri=self.field.field_uri, label=self.label) return self.field.field_uri_xml()
 
- class FieldURIField (*args, **kwargs)
- 
A field that has a FieldURI value in EWS. This means it's value is contained in an XML element or attribute. It may additionally be a label for searching, filtering and limiting fields. In that case, the FieldURI format will be 'itemtype:FieldName' Expand source codeclass FieldURIField(Field): """A field that has a FieldURI value in EWS. This means it's value is contained in an XML element or attribute. It may additionally be a label for searching, filtering and limiting fields. In that case, the FieldURI format will be 'itemtype:FieldName' """ def __init__(self, *args, **kwargs): self.field_uri = kwargs.pop("field_uri", None) self.namespace = kwargs.pop("namespace", TNS) super().__init__(*args, **kwargs) # See all valid FieldURI values at # https://docs.microsoft.com/en-us/exchange/client-developer/web-service-reference/fielduri # The field_uri has a prefix when the FieldURI points to an Item field. if self.field_uri is None: self.field_uri_postfix = None elif ":" in self.field_uri: self.field_uri_postfix = self.field_uri.split(":")[1] else: self.field_uri_postfix = self.field_uri def _get_val_from_elem(self, elem): if self.is_attribute: return elem.get(self.field_uri) or None return get_xml_attr(elem, self.response_tag()) def from_xml(self, elem, account): val = self._get_val_from_elem(elem) if val is not None: try: return xml_text_to_value(val, self.value_cls) except (ValueError, InvalidOperation): log.warning("Cannot convert value '%s' on field '%s' to type %s", val, self.name, self.value_cls) return None return self.default def to_xml(self, value, version): field_elem = create_element(self.request_tag()) return set_xml_value(field_elem, value, version=version) def field_uri_xml(self): from .properties import FieldURI if not self.field_uri: raise ValueError(f"'field_uri' value is missing on field '{self.name}'") return FieldURI(field_uri=self.field_uri).to_xml(version=None) def request_tag(self): if not self.field_uri_postfix: raise ValueError(f"'field_uri_postfix' value is missing on field '{self.name}'") return f"t:{self.field_uri_postfix}" def response_tag(self): if not self.field_uri_postfix: raise ValueError(f"'field_uri_postfix' value is missing on field '{self.name}'") return f"{{{self.namespace}}}{self.field_uri_postfix}" def __hash__(self): return hash(self.field_uri)AncestorsSubclasses- Base64Field
- BooleanField
- DateField
- DateTimeField
- DictionaryField
- EWSElementField
- IntegerField
- ItemField
- TextField
- TimeDeltaField
- TimeField
- TimeZoneField
- TypeValueField
 Methods- def field_uri_xml(self)
- 
Expand source codedef field_uri_xml(self): from .properties import FieldURI if not self.field_uri: raise ValueError(f"'field_uri' value is missing on field '{self.name}'") return FieldURI(field_uri=self.field_uri).to_xml(version=None)
- def request_tag(self)
- 
Expand source codedef request_tag(self): if not self.field_uri_postfix: raise ValueError(f"'field_uri_postfix' value is missing on field '{self.name}'") return f"t:{self.field_uri_postfix}"
- def response_tag(self)
- 
Expand source codedef response_tag(self): if not self.field_uri_postfix: raise ValueError(f"'field_uri_postfix' value is missing on field '{self.name}'") return f"{{{self.namespace}}}{self.field_uri_postfix}"
 Inherited members
- class FreeBusyStatusField (*args, **kwargs)
- 
Like ChoiceField, but specifically for Free/Busy values. Expand source codeclass FreeBusyStatusField(ChoiceField): """Like ChoiceField, but specifically for Free/Busy values.""" def __init__(self, *args, **kwargs): kwargs["choices"] = set(FREE_BUSY_CHOICES) super().__init__(*args, **kwargs)AncestorsInherited members
- class GenericEventListField (*args, **kwargs)
- 
A list field that can contain all subclasses of Event. Expand source codeclass GenericEventListField(EWSElementField): """A list field that can contain all subclasses of Event.""" is_list = True @property def _event_types_map(self): return {v.response_tag(): v for v in self.value_classes} def __init__(self, *args, **kwargs): from .properties import ( CopiedEvent, CreatedEvent, DeletedEvent, FreeBusyChangedEvent, ModifiedEvent, MovedEvent, NewMailEvent, StatusEvent, ) kwargs["value_cls"] = None # Parent class requires this kwarg kwargs["namespace"] = None # Parent class requires this kwarg super().__init__(*args, **kwargs) self.value_classes = ( CopiedEvent, CreatedEvent, DeletedEvent, ModifiedEvent, MovedEvent, NewMailEvent, StatusEvent, FreeBusyChangedEvent, ) def from_xml(self, elem, account): events = [] for event in elem: # This may or may not be an event element. Could also be other child elements of Notification try: value_cls = self._event_types_map[event.tag] except KeyError: continue events.append(value_cls.from_xml(elem=event, account=account)) return events or self.defaultAncestorsClass variables- var is_list
 Inherited members
- class IdElementField (*args, **kwargs)
- 
A generic field for any EWSElement object. Expand source codeclass IdElementField(EWSElementField): def __init__(self, *args, **kwargs): kwargs["is_searchable"] = False kwargs["is_read_only"] = True super().__init__(*args, **kwargs)AncestorsInherited members
- class IdField (*args, **kwargs)
- 
A field to hold the 'Id' and 'Changekey' attributes on 'ItemId' type items. There is no guaranteed max length, but we can assume 512 bytes in practice. See https://docs.microsoft.com/en-us/exchange/client-developer/exchange-web-services/ews-identifiers-in-exchange Expand source codeclass IdField(CharField): """A field to hold the 'Id' and 'Changekey' attributes on 'ItemId' type items. There is no guaranteed max length, but we can assume 512 bytes in practice. See https://docs.microsoft.com/en-us/exchange/client-developer/exchange-web-services/ews-identifiers-in-exchange """ def __init__(self, *args, **kwargs): super().__init__(*args, **kwargs) self.max_length = 512 # This is above the normal 255 limit, but this is actually an attribute, not a field self.is_searchable = False self.is_attribute = TrueAncestorsInherited members
- class IndexedField (*args, **kwargs)
- 
A base class for all indexed fields. Expand source codeclass IndexedField(EWSElementField, metaclass=abc.ABCMeta): """A base class for all indexed fields.""" PARENT_ELEMENT_NAME = None def __init__(self, *args, **kwargs): from .indexed_properties import IndexedElement value_cls = kwargs["value_cls"] if not issubclass(value_cls, IndexedElement): raise TypeError(f"'value_cls' {value_cls!r} must be a subclass of type {IndexedElement}") super().__init__(*args, **kwargs) def to_xml(self, value, version): return set_xml_value(create_element(f"t:{self.PARENT_ELEMENT_NAME}"), value, version=version) def response_tag(self): return f"{{{self.namespace}}}{self.PARENT_ELEMENT_NAME}" def __hash__(self): return hash(self.field_uri)AncestorsSubclassesClass variables- var PARENT_ELEMENT_NAME
 Methods- def response_tag(self)
- 
Expand source codedef response_tag(self): return f"{{{self.namespace}}}{self.PARENT_ELEMENT_NAME}"
 Inherited members
- class IntegerField (*args, **kwargs)
- 
A field that handles integer values. Expand source codeclass IntegerField(FieldURIField): """A field that handles integer values.""" value_cls = int def __init__(self, *args, **kwargs): self.min = kwargs.pop("min", None) self.max = kwargs.pop("max", None) super().__init__(*args, **kwargs) def _clean_single_value(self, v): if self.min is not None and v < self.min: raise ValueError(f"Value {v!r} on field {self.name!r} must be greater than {self.min}") if self.max is not None and v > self.max: raise ValueError(f"Value {v!r} on field {self.name!r} must be less than {self.max}") def clean(self, value, version=None): value = super().clean(value, version=version) if value is not None: if self.is_list: for v in value: self._clean_single_value(v) else: self._clean_single_value(value) return valueAncestorsSubclassesClass variables- var value_cls
- 
int([x]) -> integer int(x, base=10) -> integer Convert a number or string to an integer, or return 0 if no arguments are given. If x is a number, return x.int(). For floating point numbers, this truncates towards zero. If x is not a number or if base is given, then x must be a string, bytes, or bytearray instance representing an integer literal in the given base. The literal can be preceded by '+' or '-' and be surrounded by whitespace. The base defaults to 10. Valid bases are 0 and 2-36. Base 0 means to interpret the base from the string as an integer literal. >>> int('0b100', base=0) 4
 Methods- def clean(self, value, version=None)
- 
Expand source codedef clean(self, value, version=None): value = super().clean(value, version=version) if value is not None: if self.is_list: for v in value: self._clean_single_value(v) else: self._clean_single_value(value) return value
 Inherited members
- class InvalidChoiceForVersion (*args, **kwargs)
- 
Used when a value is not valid for an enum-type field. Expand source codeclass InvalidChoiceForVersion(ValueError): """Used when a value is not valid for an enum-type field."""Ancestors- builtins.ValueError
- builtins.Exception
- builtins.BaseException
 
- class InvalidField (*args, **kwargs)
- 
Used when a field name does not match any defined fields. Expand source codeclass InvalidField(ValueError): """Used when a field name does not match any defined fields."""Ancestors- builtins.ValueError
- builtins.Exception
- builtins.BaseException
 
- class InvalidFieldForVersion (*args, **kwargs)
- 
Used when a field is not supported on the given Exchange version. Expand source codeclass InvalidFieldForVersion(ValueError): """Used when a field is not supported on the given Exchange version."""Ancestors- builtins.ValueError
- builtins.Exception
- builtins.BaseException
 
- class ItemField (*args, **kwargs)
- 
A field that has a FieldURI value in EWS. This means it's value is contained in an XML element or attribute. It may additionally be a label for searching, filtering and limiting fields. In that case, the FieldURI format will be 'itemtype:FieldName' Expand source codeclass ItemField(FieldURIField): @property def value_cls(self): from .items import Item return Item def from_xml(self, elem, account): from .items import ITEM_CLASSES for item_cls in ITEM_CLASSES: item_elem = elem.find(item_cls.response_tag()) if item_elem is not None: return item_cls.from_xml(elem=item_elem, account=account) return None def to_xml(self, value, version): # We don't want to wrap in an Item element return value.to_xml(version=version)AncestorsInstance variables- var value_cls
- 
Expand source code@property def value_cls(self): from .items import Item return Item
 Inherited members
- class LabelField (*args, **kwargs)
- 
A field to hold the label on an IndexedElement. Expand source codeclass LabelField(ChoiceField): """A field to hold the label on an IndexedElement.""" def __init__(self, *args, **kwargs): super().__init__(*args, **kwargs) self.is_attribute = True def from_xml(self, elem, account): return elem.get(self.field_uri)AncestorsInherited members
- class MailboxField (*args, **kwargs)
- 
Base class for EWSElement classes that have an 'email_address' field that we want to provide helpers for. Expand source codeclass MailboxField(BaseEmailField): def __init__(self, *args, **kwargs): from .properties import Mailbox kwargs["value_cls"] = Mailbox super().__init__(*args, **kwargs)AncestorsInherited members
- class MailboxListField (*args, **kwargs)
- 
Like EWSElementField, but for lists of EWSElement objects. Expand source codeclass MailboxListField(EWSElementListField): def __init__(self, *args, **kwargs): from .properties import Mailbox kwargs["value_cls"] = Mailbox super().__init__(*args, **kwargs) def clean(self, value, version=None): if value is not None: value = [self.value_cls(email_address=s) if isinstance(s, str) else s for s in value] return super().clean(value, version=version)AncestorsMethods- def clean(self, value, version=None)
- 
Expand source codedef clean(self, value, version=None): if value is not None: value = [self.value_cls(email_address=s) if isinstance(s, str) else s for s in value] return super().clean(value, version=version)
 Inherited members
- class MemberListField (*args, **kwargs)
- 
Like EWSElementField, but for lists of EWSElement objects. Expand source codeclass MemberListField(EWSElementListField): def __init__(self, *args, **kwargs): from .properties import Member kwargs["value_cls"] = Member super().__init__(*args, **kwargs) def clean(self, value, version=None): from .properties import Mailbox if value is not None: value = [self.value_cls(mailbox=Mailbox(email_address=s)) if isinstance(s, str) else s for s in value] return super().clean(value, version=version)AncestorsMethods- def clean(self, value, version=None)
- 
Expand source codedef clean(self, value, version=None): from .properties import Mailbox if value is not None: value = [self.value_cls(mailbox=Mailbox(email_address=s)) if isinstance(s, str) else s for s in value] return super().clean(value, version=version)
 Inherited members
- class MessageField (*args, **kwargs)
- 
A field that handles the Message element. Expand source codeclass MessageField(TextField): """A field that handles the Message element.""" INNER_ELEMENT_NAME = "Message" def from_xml(self, elem, account): reply = elem.find(self.response_tag()) if reply is None: return None message = reply.find(f"{{{TNS}}}{self.INNER_ELEMENT_NAME}") if message is None: return None return message.text def to_xml(self, value, version): field_elem = create_element(self.request_tag()) message = create_element(f"t:{self.INNER_ELEMENT_NAME}") message.text = value return set_xml_value(field_elem, message, version=version)AncestorsClass variables- var INNER_ELEMENT_NAME
 Inherited members
- class MessageHeaderField (*args, **kwargs)
- 
Like EWSElementField, but for lists of EWSElement objects. Expand source codeclass MessageHeaderField(EWSElementListField): def __init__(self, *args, **kwargs): from .properties import MessageHeader kwargs["value_cls"] = MessageHeader super().__init__(*args, **kwargs)AncestorsInherited members
- class MimeContentField (*args, **kwargs)
- 
Like Base64Field. This element has an optional 'CharacterSet' attribute, but it specifies the encoding of the base64-encoded string (which doesn't make sense since base64-encoded strings are always ASCII). We ignore it here because the decoded data could be in some other encoding, specified in the "Content-Type" HTTP header. Expand source codeclass MimeContentField(Base64Field): """Like Base64Field. This element has an optional 'CharacterSet' attribute, but it specifies the encoding of the base64-encoded string (which doesn't make sense since base64-encoded strings are always ASCII). We ignore it here because the decoded data could be in some other encoding, specified in the "Content-Type" HTTP header. """AncestorsInherited members
- class NamedSubField (*args, **kwargs)
- 
A field to hold the value on an MultiFieldIndexedElement. Expand source codeclass NamedSubField(SubField): """A field to hold the value on an MultiFieldIndexedElement.""" value_cls = str def __init__(self, *args, **kwargs): self.field_uri = kwargs.pop("field_uri") if ":" in self.field_uri: raise ValueError("'field_uri' value must not contain a colon") super().__init__(*args, **kwargs) def from_xml(self, elem, account): field_elem = elem.find(self.response_tag()) val = None if field_elem is None else field_elem.text or None if val is not None: return val return self.default def to_xml(self, value, version): field_elem = create_element(self.request_tag()) return set_xml_value(field_elem, value, version=version) def field_uri_xml(self, field_uri, label): from .properties import IndexedFieldURI return IndexedFieldURI(field_uri=f"{field_uri}:{self.field_uri}", field_index=label).to_xml(version=None) def request_tag(self): return f"t:{self.field_uri}" def response_tag(self): return f"{{{self.namespace}}}{self.field_uri}"AncestorsMethods- def field_uri_xml(self, field_uri, label)
- 
Expand source codedef field_uri_xml(self, field_uri, label): from .properties import IndexedFieldURI return IndexedFieldURI(field_uri=f"{field_uri}:{self.field_uri}", field_index=label).to_xml(version=None)
- def request_tag(self)
- 
Expand source codedef request_tag(self): return f"t:{self.field_uri}"
- def response_tag(self)
- 
Expand source codedef response_tag(self): return f"{{{self.namespace}}}{self.field_uri}"
 Inherited members
- class OccurrenceField (*args, **kwargs)
- 
A generic field for any EWSElement object. Expand source codeclass OccurrenceField(EWSElementField): is_complex = TrueAncestorsSubclassesClass variables- var is_complex
 Inherited members
- class OccurrenceListField (*args, **kwargs)
- 
A generic field for any EWSElement object. Expand source codeclass OccurrenceListField(OccurrenceField): is_list = TrueAncestorsClass variables- var is_list
 Inherited members
- class OnOffField (*args, **kwargs)
- 
A field that handles boolean values that are On/Off instead of True/False. Expand source codeclass OnOffField(BooleanField): """A field that handles boolean values that are On/Off instead of True/False."""AncestorsInherited members
- class PermissionSetField (*args, **kwargs)
- 
A generic field for any EWSElement object. Expand source codeclass PermissionSetField(EWSElementField): is_complex = True def __init__(self, *args, **kwargs): from .properties import PermissionSet kwargs["value_cls"] = PermissionSet super().__init__(*args, **kwargs)AncestorsClass variables- var is_complex
 Inherited members
- class PersonaPhoneNumberField (*args, **kwargs)
- 
A generic field for any EWSElement object. Expand source codeclass PersonaPhoneNumberField(EWSElementField): is_complex = True def __init__(self, *args, **kwargs): from .properties import PhoneNumber kwargs["value_cls"] = PhoneNumber super().__init__(*args, **kwargs)AncestorsClass variables- var is_complex
 Inherited members
- class PhoneNumberAttributedValueField (*args, **kwargs)
- 
Like EWSElementField, but for lists of EWSElement objects. Expand source codeclass PhoneNumberAttributedValueField(EWSElementListField): def __init__(self, *args, **kwargs): from .properties import PhoneNumberAttributedValue kwargs["value_cls"] = PhoneNumberAttributedValue super().__init__(*args, **kwargs)AncestorsInherited members
- class PhoneNumberField (*args, **kwargs)
- 
A base class for all indexed fields. Expand source codeclass PhoneNumberField(IndexedField): is_list = True is_complex = True PARENT_ELEMENT_NAME = "PhoneNumbers" def __init__(self, *args, **kwargs): from .indexed_properties import PhoneNumber kwargs["value_cls"] = PhoneNumber super().__init__(*args, **kwargs)AncestorsClass variables- var PARENT_ELEMENT_NAME
- var is_complex
- var is_list
 Inherited members
- class PhysicalAddressField (*args, **kwargs)
- 
A base class for all indexed fields. Expand source codeclass PhysicalAddressField(IndexedField): is_list = True is_complex = True PARENT_ELEMENT_NAME = "PhysicalAddresses" def __init__(self, *args, **kwargs): from .indexed_properties import PhysicalAddress kwargs["value_cls"] = PhysicalAddress super().__init__(*args, **kwargs)AncestorsClass variables- var PARENT_ELEMENT_NAME
- var is_complex
- var is_list
 Inherited members
- class PostalAddressAttributedValueField (*args, **kwargs)
- 
Like EWSElementField, but for lists of EWSElement objects. Expand source codeclass PostalAddressAttributedValueField(EWSElementListField): def __init__(self, *args, **kwargs): from .properties import PostalAddressAttributedValue kwargs["value_cls"] = PostalAddressAttributedValue super().__init__(*args, **kwargs)AncestorsInherited members
- class ProtocolListField (*args, **kwargs)
- 
Like EWSElementField, but for lists of EWSElement objects. Expand source codeclass ProtocolListField(EWSElementListField): # There is not containing element for this field. Just multiple 'Protocol' elements on the 'Account' element. def __init__(self, *args, **kwargs): from .autodiscover.properties import Protocol kwargs["value_cls"] = Protocol super().__init__(*args, **kwargs) def from_xml(self, elem, account): return [self.value_cls.from_xml(elem=e, account=account) for e in elem.findall(self.value_cls.response_tag())]AncestorsInherited members
- class RecipientAddressField (*args, **kwargs)
- 
Base class for EWSElement classes that have an 'email_address' field that we want to provide helpers for. Expand source codeclass RecipientAddressField(BaseEmailField): def __init__(self, *args, **kwargs): from .properties import RecipientAddress kwargs["value_cls"] = RecipientAddress super().__init__(*args, **kwargs)AncestorsInherited members
- class RecurrenceField (*args, **kwargs)
- 
A generic field for any EWSElement object. Expand source codeclass RecurrenceField(EWSElementField): is_complex = True def __init__(self, *args, **kwargs): from .recurrence import Recurrence kwargs["value_cls"] = Recurrence super().__init__(*args, **kwargs) def to_xml(self, value, version): return value.to_xml(version=version)AncestorsClass variables- var is_complex
 Inherited members
- class ReferenceItemIdField (*args, **kwargs)
- 
A generic field for any EWSElement object. Expand source codeclass ReferenceItemIdField(EWSElementField): is_complex = True def __init__(self, *args, **kwargs): from .properties import ReferenceItemId kwargs["value_cls"] = ReferenceItemId super().__init__(*args, **kwargs) def to_xml(self, value, version): return value.to_xml(version=version)AncestorsClass variables- var is_complex
 Inherited members
- class RoutingTypeField (*args, **kwargs)
- 
Like CharField, but restricts the value to a limited set of strings. Expand source codeclass RoutingTypeField(ChoiceField): def __init__(self, *args, **kwargs): kwargs["choices"] = {Choice("SMTP"), Choice("EX")} kwargs["default"] = "SMTP" super().__init__(*args, **kwargs)AncestorsInherited members
- class StringAttributedValueField (*args, **kwargs)
- 
Like EWSElementField, but for lists of EWSElement objects. Expand source codeclass StringAttributedValueField(EWSElementListField): def __init__(self, *args, **kwargs): from .properties import StringAttributedValue kwargs["value_cls"] = StringAttributedValue super().__init__(*args, **kwargs)AncestorsInherited members
- class SubField (name=None, is_required=False, is_required_after_save=False, is_read_only=False, is_read_only_after_send=False, is_searchable=True, is_attribute=False, default=None, *args, **kwargs)
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A field to hold the value on an IndexedElement. Expand source codeclass SubField(Field): """A field to hold the value on an IndexedElement.""" namespace = TNS value_cls = str def from_xml(self, elem, account): return elem.text def to_xml(self, value, version): return value @staticmethod def field_uri_xml(field_uri, label): from .properties import IndexedFieldURI return IndexedFieldURI(field_uri=field_uri, field_index=label).to_xml(version=None) def clean(self, value, version=None): value = super().clean(value, version=version) if self.is_required and not value: raise ValueError(f"Value for subfield {self.name!r} must be non-empty") return value def __hash__(self): return hash(self.name)AncestorsSubclassesClass variables- var namespace
- var value_cls
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str(object='') -> str str(bytes_or_buffer[, encoding[, errors]]) -> str Create a new string object from the given object. If encoding or errors is specified, then the object must expose a data buffer that will be decoded using the given encoding and error handler. Otherwise, returns the result of object.str() (if defined) or repr(object). encoding defaults to sys.getdefaultencoding(). errors defaults to 'strict'. 
 Static methods- def field_uri_xml(field_uri, label)
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Expand source code@staticmethod def field_uri_xml(field_uri, label): from .properties import IndexedFieldURI return IndexedFieldURI(field_uri=field_uri, field_index=label).to_xml(version=None)
 Methods- def clean(self, value, version=None)
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Expand source codedef clean(self, value, version=None): value = super().clean(value, version=version) if self.is_required and not value: raise ValueError(f"Value for subfield {self.name!r} must be non-empty") return value
 Inherited members
- class TaskRecurrenceField (*args, **kwargs)
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A generic field for any EWSElement object. Expand source codeclass TaskRecurrenceField(EWSElementField): is_complex = True def __init__(self, *args, **kwargs): from .recurrence import TaskRecurrence kwargs["value_cls"] = TaskRecurrence super().__init__(*args, **kwargs) def to_xml(self, value, version): return value.to_xml(version=version)AncestorsClass variables- var is_complex
 Inherited members
- class TextField (*args, **kwargs)
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A field that stores a string value with no length limit. Expand source codeclass TextField(FieldURIField): """A field that stores a string value with no length limit.""" value_cls = str is_complex = TrueAncestorsSubclassesClass variables- var is_complex
- var value_cls
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str(object='') -> str str(bytes_or_buffer[, encoding[, errors]]) -> str Create a new string object from the given object. If encoding or errors is specified, then the object must expose a data buffer that will be decoded using the given encoding and error handler. Otherwise, returns the result of object.str() (if defined) or repr(object). encoding defaults to sys.getdefaultencoding(). errors defaults to 'strict'. 
 Inherited members
- class TextListField (*args, **kwargs)
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Like TextField, but for lists of text. Expand source codeclass TextListField(TextField): """Like TextField, but for lists of text.""" is_list = True def __init__(self, *args, **kwargs): self.list_elem_name = kwargs.pop("list_elem_name", "String") super().__init__(*args, **kwargs) def list_elem_request_tag(self): return f"t:{self.list_elem_name}" def list_elem_response_tag(self): return f"{{{self.namespace}}}{self.list_elem_name}" def from_xml(self, elem, account): iter_elem = elem.find(self.response_tag()) if iter_elem is not None: return get_xml_attrs(iter_elem, self.list_elem_response_tag()) return self.default def to_xml(self, value, version): field_elem = create_element(self.request_tag()) for v in value: field_elem.append(set_xml_value(create_element(self.list_elem_request_tag()), v, version=version)) return field_elemAncestorsSubclassesClass variables- var is_list
 Methods- def list_elem_request_tag(self)
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Expand source codedef list_elem_request_tag(self): return f"t:{self.list_elem_name}"
- def list_elem_response_tag(self)
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Expand source codedef list_elem_response_tag(self): return f"{{{self.namespace}}}{self.list_elem_name}"
 Inherited members
- class TimeDeltaField (*args, **kwargs)
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A field that handles timedelta values. Expand source codeclass TimeDeltaField(FieldURIField): """A field that handles timedelta values.""" value_cls = datetime.timedelta def __init__(self, *args, **kwargs): self.min = kwargs.pop("min", datetime.timedelta(0)) self.max = kwargs.pop("max", datetime.timedelta(days=1)) super().__init__(*args, **kwargs) def clean(self, value, version=None): if self.min is not None and value < self.min: raise ValueError(f"Value {value!r} on field {self.name!r} must be greater than {self.min}") if self.max is not None and value > self.max: raise ValueError(f"Value {value!r} on field {self.name!r} must be less than {self.max}") return super().clean(value, version=version)AncestorsClass variables- var value_cls
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Difference between two datetime values. timedelta(days=0, seconds=0, microseconds=0, milliseconds=0, minutes=0, hours=0, weeks=0) All arguments are optional and default to 0. Arguments may be integers or floats, and may be positive or negative. 
 Methods- def clean(self, value, version=None)
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Expand source codedef clean(self, value, version=None): if self.min is not None and value < self.min: raise ValueError(f"Value {value!r} on field {self.name!r} must be greater than {self.min}") if self.max is not None and value > self.max: raise ValueError(f"Value {value!r} on field {self.name!r} must be less than {self.max}") return super().clean(value, version=version)
 Inherited members
- class TimeField (*args, **kwargs)
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A field that handles time values. Expand source codeclass TimeField(FieldURIField): """A field that handles time values.""" value_cls = datetime.time def from_xml(self, elem, account): val = self._get_val_from_elem(elem) if val is not None: with suppress(ValueError): if ":" in val: # Assume a string of the form HH:MM:SS return datetime.datetime.strptime(val, "%H:%M:%S").time() # Assume an integer in minutes since midnight return (datetime.datetime(2000, 1, 1) + datetime.timedelta(minutes=int(val))).time() return self.defaultAncestorsClass variables- var value_cls
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time([hour[, minute[, second[, microsecond[, tzinfo]]]]]) –> a time object All arguments are optional. tzinfo may be None, or an instance of a tzinfo subclass. The remaining arguments may be ints. 
 Inherited members
- class TimeZoneField (*args, **kwargs)
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A field that handles timezone values. Expand source codeclass TimeZoneField(FieldURIField): """A field that handles timezone values.""" value_cls = EWSTimeZone def clean(self, value, version=None): # Allow other timezone implementations as input if value is not None: value = self.value_cls.from_timezone(value) return super().clean(value=value, version=version) def from_xml(self, elem, account): field_elem = elem.find(self.response_tag()) if field_elem is not None: ms_id = field_elem.get("Id") ms_name = field_elem.get("Name") try: return self.value_cls.from_ms_id(ms_id or ms_name) except UnknownTimeZone: log.warning( "Cannot convert value '%s' on field '%s' to type %s (unknown timezone ID)", (ms_id or ms_name), self.name, self.value_cls, ) return None return self.default def to_xml(self, value, version): attrs = dict(Id=value.ms_id) if value.ms_name: attrs["Name"] = value.ms_name return create_element(self.request_tag(), attrs=attrs)AncestorsClass variables- var value_cls
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Represents a time zone as expected by the EWS TimezoneContext / TimezoneDefinition XML element, and returned by services.GetServerTimeZones. 
 Methods- def clean(self, value, version=None)
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Expand source codedef clean(self, value, version=None): # Allow other timezone implementations as input if value is not None: value = self.value_cls.from_timezone(value) return super().clean(value=value, version=version)
 Inherited members
- class TransitionListField (*args, **kwargs)
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Like EWSElementField, but for lists of EWSElement objects. Expand source codeclass TransitionListField(EWSElementListField): def __init__(self, *args, **kwargs): from .properties import BaseTransition kwargs["value_cls"] = BaseTransition super().__init__(*args, **kwargs) def from_xml(self, elem, account): iter_elem = elem.find(self.response_tag()) if self.field_uri else elem if iter_elem is not None: return [ self.value_cls.transition_model_from_tag(e.tag).from_xml(elem=e, account=account) for e in iter_elem ] return self.defaultAncestorsInherited members
- class TypeValueField (*args, **kwargs)
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This field type has no value_cls because values may have many types. Expand source codeclass TypeValueField(FieldURIField): """This field type has no value_cls because values may have many types.""" TYPES_MAP = { "Boolean": bool, "Integer32": int, "UnsignedInteger32": int, "Integer64": int, "UnsignedInteger64": int, # Python doesn't have a single-byte type to represent 'Byte' "ByteArray": bytes, "String": str, "StringArray": str, # A list of strings "DateTime": EWSDateTime, } TYPES_MAP_REVERSED = { bool: "Boolean", int: "Integer64", # Python doesn't have a single-byte type to represent 'Byte' bytes: "ByteArray", str: "String", datetime.datetime: "DateTime", EWSDateTime: "DateTime", } @classmethod def get_type(cls, value): if isinstance(value, bytes) and len(value) == 1: # This is a single byte. Translate it to the 'Byte' type return "Byte" if is_iterable(value): # We don't allow generators as values, so keep the logic simple try: first = next(iter(value)) except StopIteration: first = None value_type = f"{cls.TYPES_MAP_REVERSED[type(first)]}Array" if value_type not in cls.TYPES_MAP: raise ValueError(f"{value!r} is not a supported type") return value_type return cls.TYPES_MAP_REVERSED[type(value)] @classmethod def is_array_type(cls, value_type): return value_type == "StringArray" def clean(self, value, version=None): if value is None: if self.is_required and self.default is None: raise ValueError(f"{self.name!r} is a required field with no default") return self.default return value def from_xml(self, elem, account): field_elem = elem.find(self.response_tag()) if field_elem is None: return self.default value_type_str = get_xml_attr(field_elem, f"{{{TNS}}}Type") value = get_xml_attr(field_elem, f"{{{TNS}}}Value") if value_type_str == "Byte": try: # The value is an unsigned integer in the range 0 -> 255. Convert it to a single byte return xml_text_to_value(value, int).to_bytes(1, "little", signed=False) except OverflowError as e: log.warning("Invalid byte value %r (%e)", value, e) return None value_type = self.TYPES_MAP[value_type_str] if self.is_array_type(value_type_str): return tuple(xml_text_to_value(value=v, value_type=value_type) for v in value.split(" ")) return xml_text_to_value(value=value, value_type=value_type) def to_xml(self, value, version): value_type_str = self.get_type(value) if value_type_str == "Byte": # A single byte is encoded to an unsigned integer in the range 0 -> 255 value = int.from_bytes(value, byteorder="little", signed=False) elif is_iterable(value): value = " ".join(value_to_xml_text(v) for v in value) field_elem = create_element(self.request_tag()) field_elem.append(set_xml_value(create_element("t:Type"), value_type_str, version=version)) field_elem.append(set_xml_value(create_element("t:Value"), value, version=version)) return field_elemAncestorsClass variables- var TYPES_MAP
- var TYPES_MAP_REVERSED
 Static methods- def get_type(value)
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Expand source code@classmethod def get_type(cls, value): if isinstance(value, bytes) and len(value) == 1: # This is a single byte. Translate it to the 'Byte' type return "Byte" if is_iterable(value): # We don't allow generators as values, so keep the logic simple try: first = next(iter(value)) except StopIteration: first = None value_type = f"{cls.TYPES_MAP_REVERSED[type(first)]}Array" if value_type not in cls.TYPES_MAP: raise ValueError(f"{value!r} is not a supported type") return value_type return cls.TYPES_MAP_REVERSED[type(value)]
- def is_array_type(value_type)
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Expand source code@classmethod def is_array_type(cls, value_type): return value_type == "StringArray"
 Methods- def clean(self, value, version=None)
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Expand source codedef clean(self, value, version=None): if value is None: if self.is_required and self.default is None: raise ValueError(f"{self.name!r} is a required field with no default") return self.default return value
 Inherited members
- class URIField (*args, **kwargs)
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Helper to mark strings that must conform to xsd:anyURI. If we want a URI validator, see https://stackoverflow.com/questions/14466585/is-this-regex-correct-for-xsdanyuri Expand source codeclass URIField(TextField): """Helper to mark strings that must conform to xsd:anyURI. If we want a URI validator, see https://stackoverflow.com/questions/14466585/is-this-regex-correct-for-xsdanyuri """AncestorsInherited members
- class UnknownEntriesField (*args, **kwargs)
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Like TextListField, but for string values with a limited length. Expand source codeclass UnknownEntriesField(CharListField): def list_elem_tag(self): return f"{{{self.namespace}}}UnknownEntry"AncestorsMethods- def list_elem_tag(self)
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Expand source codedef list_elem_tag(self): return f"{{{self.namespace}}}UnknownEntry"
 Inherited members
- class WeekdaysField (*args, **kwargs)
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Like EnumListField, allow a single value instead of a 1-element list. Expand source codeclass WeekdaysField(EnumListField): """Like EnumListField, allow a single value instead of a 1-element list.""" def clean(self, value, version=None): if isinstance(value, (int, str)): value = [value] return super().clean(value, version)AncestorsMethods- def clean(self, value, version=None)
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Expand source codedef clean(self, value, version=None): if isinstance(value, (int, str)): value = [value] return super().clean(value, version)
 Inherited members