2024-05-16 10:17:45 -04:00
|
|
|
|
import re
|
2024-05-23 13:59:51 -07:00
|
|
|
|
from datetime import datetime, timezone
|
2024-05-16 10:17:45 -04:00
|
|
|
|
|
|
|
|
|
|
SMS_CHAR_COUNT_LIMIT = 918 # 153 * 6, no network issues but check with providers before upping this further
|
|
|
|
|
|
LETTER_MAX_PAGE_COUNT = 10
|
|
|
|
|
|
DAILY_MESSAGE_LIMIT = 10000
|
|
|
|
|
|
|
|
|
|
|
|
# regexes for use in recipients.validate_email_address.
|
|
|
|
|
|
# Valid characters taken from https://en.wikipedia.org/wiki/Email_address#Local-part
|
|
|
|
|
|
# Note: Normal apostrophe eg `Firstname-o'surname@domain.com` is allowed.
|
|
|
|
|
|
# hostname_part regex: xn in regex signifies possible punycode conversions, which would start `xn--`;
|
|
|
|
|
|
# the hyphens are matched for later in the regex.
|
|
|
|
|
|
hostname_part = re.compile(r"^(xn|[a-z0-9]+)(-?-[a-z0-9]+)*$", re.IGNORECASE)
|
|
|
|
|
|
tld_part = re.compile(r"^([a-z]{2,63}|xn--([a-z0-9]+-)*[a-z0-9]+)$", re.IGNORECASE)
|
|
|
|
|
|
VALID_LOCAL_CHARS = r"a-zA-Z0-9.!#$%&'*+/=?^_`{|}~\-"
|
|
|
|
|
|
EMAIL_REGEX_PATTERN = r"^[{}]+@([^.@][^@\s]+)$".format(VALID_LOCAL_CHARS)
|
|
|
|
|
|
email_with_smart_quotes_regex = re.compile(
|
|
|
|
|
|
# matches wider than an email - everything between an at sign and the nearest whitespace
|
|
|
|
|
|
r"(^|\s)\S+@\S+(\s|$)",
|
|
|
|
|
|
flags=re.MULTILINE,
|
|
|
|
|
|
)
|
|
|
|
|
|
|
|
|
|
|
|
# The magic sequence is a ‘unique’ series of characters which we temporarily insert
|
|
|
|
|
|
# and then later remove when performing tricky formatting operations
|
|
|
|
|
|
MAGIC_SEQUENCE = "🇬🇧🐦✉️"
|
|
|
|
|
|
magic_sequence_regex = re.compile(MAGIC_SEQUENCE)
|
2024-05-23 13:59:51 -07:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def aware_utcnow():
|
|
|
|
|
|
return datetime.now(timezone.utc)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def naive_utcnow():
|
|
|
|
|
|
return aware_utcnow().replace(tzinfo=None)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def utc_now():
|
|
|
|
|
|
return naive_utcnow()
|
