Files
notifications-admin/app/main/validators.py
2025-03-20 10:45:33 -04:00

160 lines
4.6 KiB
Python

import re
from abc import ABC, abstractmethod
from wtforms import ValidationError
from app.main._commonly_used_passwords import commonly_used_passwords
from app.models.spreadsheet import Spreadsheet
from app.utils.user import is_gov_user
from notifications_utils.field import Field
from notifications_utils.formatters import formatted_list
from notifications_utils.recipients import InvalidEmailError, validate_email_address
from notifications_utils.sanitise_text import SanitiseSMS
class CommonlyUsedPassword:
def __init__(self, message=None):
if not message:
message = "Password is in list of commonly used passwords."
self.message = message
def __call__(self, form, field):
if field.data in commonly_used_passwords:
raise ValidationError(self.message)
class CsvFileValidator:
def __init__(self, message="Not a csv file"):
self.message = message
def __call__(self, form, field):
if not Spreadsheet.can_handle(field.data.filename):
raise ValidationError(
"{} is not a spreadsheet that Notify can read".format(
field.data.filename
)
)
class ValidGovEmail:
def __call__(self, form, field):
if field.data == "":
return
message = "Enter a public sector email address."
if not is_gov_user(field.data.lower()):
raise ValidationError(message)
class ValidEmail:
message = "Enter a valid email address"
def __call__(self, form, field):
if not field.data:
return
try:
validate_email_address(field.data)
except InvalidEmailError:
raise ValidationError(self.message)
class NoCommasInPlaceHolders:
def __init__(self, message="You cannot put commas between double parenthesis"):
self.message = message
def __call__(self, form, field):
if "," in "".join(Field(field.data).placeholders):
raise ValidationError(self.message)
class NoElementInSVG(ABC):
@property
@abstractmethod
def element(self):
pass
@property
@abstractmethod
def message(self):
pass
def __call__(self, form, field):
svg_contents = field.data.stream.read().decode("utf-8")
field.data.stream.seek(0)
if f"<{self.element}" in svg_contents.lower():
raise ValidationError(self.message)
class NoEmbeddedImagesInSVG(NoElementInSVG):
element = "image"
message = "This SVG has an embedded raster image in it and will not render well"
class NoTextInSVG(NoElementInSVG):
element = "text"
message = "This SVG has text which has not been converted to paths and may not render well"
class OnlySMSCharacters:
def __init__(self, *args, template_type, **kwargs):
self._template_type = template_type
super().__init__(*args, **kwargs)
def __call__(self, form, field):
non_sms_characters = sorted(
list(SanitiseSMS.get_non_compatible_characters(field.data))
)
if non_sms_characters:
raise ValidationError(
"Please remove the unaccepted character {} in your message, then save again".format(
formatted_list(
non_sms_characters,
conjunction="and",
before_each="",
after_each="",
),
)
)
class LettersNumbersSingleQuotesFullStopsAndUnderscoresOnly:
regex = re.compile(r"^[a-zA-Z0-9\s\._']+$")
def __init__(self, message="Use letters and numbers only"):
self.message = message
def __call__(self, form, field):
if field.data and not re.match(self.regex, field.data):
raise ValidationError(self.message)
class DoesNotStartWithDoubleZero:
def __init__(self, message="Cannot start with 00"):
self.message = message
def __call__(self, form, field):
if field.data and field.data.startswith("00"):
raise ValidationError(self.message)
class FieldCannotContainComma:
def __init__(self, message="Cannot contain a comma"):
self.message = message
def __call__(self, form, field):
if field.data and "," in field.data:
raise ValidationError(self.message)
class MustContainAlphanumericCharacters:
regex = re.compile(r".*[a-zA-Z0-9].*[a-zA-Z0-9].*")
def __init__(self, message="Must include at least two alphanumeric characters"):
self.message = message
def __call__(self, form, field):
if field.data and not re.match(self.regex, field.data):
raise ValidationError(self.message)