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import re |
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from django.core.exceptions import ValidationError |
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from django.utils.encoding import python_2_unicode_compatible |
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from django.utils.functional import cached_property |
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from django.utils.translation import ugettext |
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from suds import WebFault |
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from suds.client import Client |
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10
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from vies import VIES_WSDL_URL, logger |
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def dk_format(v): |
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return '%s %s %s %s' % (v[:4], v[4:6], v[6:8], v[8:10]) |
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def gb_format(v): |
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if len(v) == 11: |
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return '%s %s %s' % (v[:5], v[5:9], v[9:11]) |
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if len(v) == 14: |
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return '%s %s' % (gb_format(v[:11]), v[11:14]) |
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return v |
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def fr_format(v): |
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return '%s %s' % (v[:4], v[4:]) |
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VIES_OPTIONS = { |
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'AT': ('Austria', re.compile(r'^ATU\d{8}$')), |
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'BE': ('Belgium', re.compile(r'^BE0?\d{9}$')), |
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'BG': ('Bulgaria', re.compile(r'^BG\d{9,10}$')), |
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'HR': ('Croatia', re.compile(r'^HR\d{11}$')), |
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'CY': ('Cyprus', re.compile(r'^CY\d{8}[A-Z]$')), |
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'CZ': ('Czech Republic', re.compile(r'^CZ\d{8,10}$')), |
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'DE': ('Germany', re.compile(r'^DE\d{9}$')), |
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'DK': ('Denmark', re.compile(r'^DK\d{8}$'), dk_format), |
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'EE': ('Estonia', re.compile(r'^EE\d{9}$')), |
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'EL': ('Greece', re.compile(r'^EL\d{9}$')), |
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'ES': ('Spain', re.compile(r'^ES[A-Z0-9]\d{7}[A-Z0-9]$')), |
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'FI': ('Finland', re.compile(r'^FI\d{8}$')), |
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'FR': ('France', re.compile(r'^FR[A-HJ-NP-Z0-9][A-HJ-NP-Z0-9]\d{9}$'), fr_format), |
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'GB': ('United Kingdom', re.compile(r'^(GB(GD|HA)\d{3}|GB\d{9}|GB\d{12})$'), gb_format), |
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'HU': ('Hungary', re.compile(r'^HU\d{8}$')), |
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'IE': ('Ireland', re.compile(r'^IE\d[A-Z0-9\+\*]\d{5}[A-Z]{1,2}$')), |
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'IT': ('Italy', re.compile(r'^IT\d{11}$')), |
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'LT': ('Lithuania', re.compile(r'^LT(\d{9}|\d{12})$')), |
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'LU': ('Luxembourg', re.compile(r'^LU\d{8}$')), |
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'LV': ('Latvia', re.compile(r'^LV\d{11}$')), |
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'MT': ('Malta', re.compile(r'^MT\d{8}$')), |
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'NL': ('The Netherlands', re.compile(r'^NL\d{9}B\d{2}$')), |
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'PL': ('Poland', re.compile(r'^PL\d{10}$')), |
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'PT': ('Portugal', re.compile(r'^PT\d{9}$')), |
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'RO': ('Romania', re.compile(r'^RO\d{2,10}$')), |
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'SE': ('Sweden', re.compile(r'^SE\d{10}01$')), |
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'SI': ('Slovenia', re.compile(r'^SI\d{8}$')), |
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'SK': ('Slovakia', re.compile(r'^SK\d{10}$')), |
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} |
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VIES_COUNTRY_CHOICES = sorted( |
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(('', '--'),) + |
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tuple( |
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(key, key) |
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for key, value in VIES_OPTIONS.items()) |
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) |
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MEMBER_COUNTRY_CODES = VIES_OPTIONS.keys() |
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@python_2_unicode_compatible |
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class VATIN(object): |
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"""Object wrapper for the european VAT Identification Number.""" |
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def __init__(self, country_code, number): |
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self.country_code = country_code |
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self.number = number |
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def __str__(self): |
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unformated_number = "{country_code}{number}".format( |
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country_code=self.country_code, |
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number=self.number, |
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) |
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country = VIES_OPTIONS.get(self.country_code, {}) |
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if len(country) == 3: |
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return country[2](unformated_number) |
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return unformated_number |
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def __repr__(self): |
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return "<VATIN {}>".format(self.__str__()) |
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def get_country_code(self): |
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return self._country_code |
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def set_country_code(self, value): |
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self._country_code = value.upper() |
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country_code = property(get_country_code, set_country_code) |
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def get_number(self): |
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return self._number |
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def set_number(self, value): |
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self._number = value.upper().replace(' ', '') |
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number = property(get_number, set_number) |
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@cached_property |
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def data(self): |
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"""VIES API response data.""" |
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client = Client(VIES_WSDL_URL) |
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try: |
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return client.service.checkVat( |
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self.country_code, |
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self.number |
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) |
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except WebFault as e: |
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logger.exception(e) |
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raise |
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def is_valid(self): |
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try: |
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self.verify() |
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self.validate() |
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except ValidationError: |
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return False |
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else: |
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return True |
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def verify_country_code(self): |
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if not re.match(r'^[a-zA-Z]', self.country_code): |
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msg = ugettext('%s is not a valid ISO_3166-1 country code.') |
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raise ValidationError(msg % self.country_code) |
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elif self.country_code not in MEMBER_COUNTRY_CODES: |
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msg = ugettext('%s is not a european member state.') |
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raise ValidationError(msg % self.country_code) |
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def verify_regex(self): |
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country = dict(map( |
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lambda x, y: (x, y), ('country', 'validator', 'formatter'), |
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VIES_OPTIONS[self.country_code] |
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)) |
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if not country['validator'].match("%s%s" % (self.country_code, self.number)): |
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msg = ugettext("%s does not match the countries VAT ID specifications.") |
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raise ValidationError(msg % self) |
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def verify(self): |
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self.verify_country_code() |
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self.verify_regex() |
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151
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def validate(self): |
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if not self.data.valid: |
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msg = ugettext("%s is not a valid VATIN.") |
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raise ValidationError(msg % self) |
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156
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@classmethod |
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def from_str(cls, value): |
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"""Return a VATIN object by given string.""" |
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return cls(value[:2].strip(), value[2:].strip()) |
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codingjoe /
django-vies
