| """ |
| A library of validators that return None and raise ValidationError when the |
| provided data isn't valid. |
| |
| Validators may be callable classes, and they may have an 'always_test' |
| attribute. If an 'always_test' attribute exists (regardless of value), the |
| validator will *always* be run, regardless of whether its associated |
| form field is required. |
| """ |
| |
| import urllib2 |
| import re |
| try: |
| from decimal import Decimal, DecimalException |
| except ImportError: |
| from django.utils._decimal import Decimal, DecimalException # Python 2.3 |
| |
| from django.conf import settings |
| from django.utils.translation import ugettext as _, ugettext_lazy, ungettext |
| from django.utils.functional import Promise, lazy |
| from django.utils.encoding import force_unicode, smart_str |
| |
| _datere = r'\d{4}-\d{1,2}-\d{1,2}' |
| _timere = r'(?:[01]?[0-9]|2[0-3]):[0-5][0-9](?::[0-5][0-9])?' |
| alnum_re = re.compile(r'^\w+$') |
| alnumurl_re = re.compile(r'^[-\w/]+$') |
| ansi_date_re = re.compile('^%s$' % _datere) |
| ansi_time_re = re.compile('^%s$' % _timere) |
| ansi_datetime_re = re.compile('^%s %s$' % (_datere, _timere)) |
| email_re = re.compile( |
| r"(^[-!#$%&'*+/=?^_`{}|~0-9A-Z]+(\.[-!#$%&'*+/=?^_`{}|~0-9A-Z]+)*" # dot-atom |
| r'|^"([\001-\010\013\014\016-\037!#-\[\]-\177]|\\[\001-\011\013\014\016-\177])*"' # quoted-string |
| r')@(?:[A-Z0-9-]+\.)+[A-Z]{2,6}$', re.IGNORECASE) # domain |
| integer_re = re.compile(r'^-?\d+$') |
| ip4_re = re.compile(r'^(25[0-5]|2[0-4]\d|[0-1]?\d?\d)(\.(25[0-5]|2[0-4]\d|[0-1]?\d?\d)){3}$') |
| phone_re = re.compile(r'^[A-PR-Y0-9]{3}-[A-PR-Y0-9]{3}-[A-PR-Y0-9]{4}$', re.IGNORECASE) |
| slug_re = re.compile(r'^[-\w]+$') |
| url_re = re.compile(r'^https?://\S+$') |
| |
| lazy_inter = lazy(lambda a,b: force_unicode(a) % b, unicode) |
| |
| class ValidationError(Exception): |
| def __init__(self, message): |
| "ValidationError can be passed a string or a list." |
| if isinstance(message, list): |
| self.messages = [force_unicode(msg) for msg in message] |
| else: |
| assert isinstance(message, (basestring, Promise)), ("%s should be a string" % repr(message)) |
| self.messages = [force_unicode(message)] |
| |
| def __str__(self): |
| # This is needed because, without a __str__(), printing an exception |
| # instance would result in this: |
| # AttributeError: ValidationError instance has no attribute 'args' |
| # See http://www.python.org/doc/current/tut/node10.html#handling |
| return str(self.messages) |
| |
| class CriticalValidationError(Exception): |
| def __init__(self, message): |
| "ValidationError can be passed a string or a list." |
| if isinstance(message, list): |
| self.messages = [force_unicode(msg) for msg in message] |
| else: |
| assert isinstance(message, (basestring, Promise)), ("'%s' should be a string" % message) |
| self.messages = [force_unicode(message)] |
| |
| def __str__(self): |
| return str(self.messages) |
| |
| def isAlphaNumeric(field_data, all_data): |
| if not alnum_re.search(field_data): |
| raise ValidationError, _("This value must contain only letters, numbers and underscores.") |
| |
| def isAlphaNumericURL(field_data, all_data): |
| if not alnumurl_re.search(field_data): |
| raise ValidationError, _("This value must contain only letters, numbers, underscores, dashes or slashes.") |
| |
| def isSlug(field_data, all_data): |
| if not slug_re.search(field_data): |
| raise ValidationError, _("This value must contain only letters, numbers, underscores or hyphens.") |
| |
| def isLowerCase(field_data, all_data): |
| if field_data.lower() != field_data: |
| raise ValidationError, _("Uppercase letters are not allowed here.") |
| |
| def isUpperCase(field_data, all_data): |
| if field_data.upper() != field_data: |
| raise ValidationError, _("Lowercase letters are not allowed here.") |
| |
| def isCommaSeparatedIntegerList(field_data, all_data): |
| for supposed_int in field_data.split(','): |
| try: |
| int(supposed_int) |
| except ValueError: |
| raise ValidationError, _("Enter only digits separated by commas.") |
| |
| def isCommaSeparatedEmailList(field_data, all_data): |
| """ |
| Checks that field_data is a string of e-mail addresses separated by commas. |
| Blank field_data values will not throw a validation error, and whitespace |
| is allowed around the commas. |
| """ |
| for supposed_email in field_data.split(','): |
| try: |
| isValidEmail(supposed_email.strip(), '') |
| except ValidationError: |
| raise ValidationError, _("Enter valid e-mail addresses separated by commas.") |
| |
| def isValidIPAddress4(field_data, all_data): |
| if not ip4_re.search(field_data): |
| raise ValidationError, _("Please enter a valid IP address.") |
| |
| def isNotEmpty(field_data, all_data): |
| if field_data.strip() == '': |
| raise ValidationError, _("Empty values are not allowed here.") |
| |
| def isOnlyDigits(field_data, all_data): |
| if not field_data.isdigit(): |
| raise ValidationError, _("Non-numeric characters aren't allowed here.") |
| |
| def isNotOnlyDigits(field_data, all_data): |
| if field_data.isdigit(): |
| raise ValidationError, _("This value can't be comprised solely of digits.") |
| |
| def isInteger(field_data, all_data): |
| # This differs from isOnlyDigits because this accepts the negative sign |
| if not integer_re.search(field_data): |
| raise ValidationError, _("Enter a whole number.") |
| |
| def isOnlyLetters(field_data, all_data): |
| if not field_data.isalpha(): |
| raise ValidationError, _("Only alphabetical characters are allowed here.") |
| |
| def _isValidDate(date_string): |
| """ |
| A helper function used by isValidANSIDate and isValidANSIDatetime to |
| check if the date is valid. The date string is assumed to already be in |
| YYYY-MM-DD format. |
| """ |
| from datetime import date |
| # Could use time.strptime here and catch errors, but datetime.date below |
| # produces much friendlier error messages. |
| year, month, day = map(int, date_string.split('-')) |
| try: |
| date(year, month, day) |
| except ValueError, e: |
| msg = _('Invalid date: %s') % _(str(e)) |
| raise ValidationError, msg |
| |
| def isValidANSIDate(field_data, all_data): |
| if not ansi_date_re.search(field_data): |
| raise ValidationError, _('Enter a valid date in YYYY-MM-DD format.') |
| _isValidDate(field_data) |
| |
| def isValidANSITime(field_data, all_data): |
| if not ansi_time_re.search(field_data): |
| raise ValidationError, _('Enter a valid time in HH:MM format.') |
| |
| def isValidANSIDatetime(field_data, all_data): |
| if not ansi_datetime_re.search(field_data): |
| raise ValidationError, _('Enter a valid date/time in YYYY-MM-DD HH:MM format.') |
| _isValidDate(field_data.split()[0]) |
| |
| def isValidEmail(field_data, all_data): |
| if not email_re.search(field_data): |
| raise ValidationError, _('Enter a valid e-mail address.') |
| |
| def isValidImage(field_data, all_data): |
| """ |
| Checks that the file-upload field data contains a valid image (GIF, JPG, |
| PNG, possibly others -- whatever the Python Imaging Library supports). |
| """ |
| from PIL import Image |
| from cStringIO import StringIO |
| try: |
| content = field_data.read() |
| except TypeError: |
| raise ValidationError, _("No file was submitted. Check the encoding type on the form.") |
| try: |
| # load() is the only method that can spot a truncated JPEG, |
| # but it cannot be called sanely after verify() |
| trial_image = Image.open(StringIO(content)) |
| trial_image.load() |
| # verify() is the only method that can spot a corrupt PNG, |
| # but it must be called immediately after the constructor |
| trial_image = Image.open(StringIO(content)) |
| trial_image.verify() |
| except Exception: # Python Imaging Library doesn't recognize it as an image |
| raise ValidationError, _("Upload a valid image. The file you uploaded was either not an image or a corrupted image.") |
| |
| def isValidImageURL(field_data, all_data): |
| uc = URLMimeTypeCheck(('image/jpeg', 'image/gif', 'image/png')) |
| try: |
| uc(field_data, all_data) |
| except URLMimeTypeCheck.InvalidContentType: |
| raise ValidationError, _("The URL %s does not point to a valid image.") % field_data |
| |
| def isValidPhone(field_data, all_data): |
| if not phone_re.search(field_data): |
| raise ValidationError, _('Phone numbers must be in XXX-XXX-XXXX format. "%s" is invalid.') % field_data |
| |
| def isValidQuicktimeVideoURL(field_data, all_data): |
| "Checks that the given URL is a video that can be played by QuickTime (qt, mpeg)" |
| uc = URLMimeTypeCheck(('video/quicktime', 'video/mpeg',)) |
| try: |
| uc(field_data, all_data) |
| except URLMimeTypeCheck.InvalidContentType: |
| raise ValidationError, _("The URL %s does not point to a valid QuickTime video.") % field_data |
| |
| def isValidURL(field_data, all_data): |
| if not url_re.search(field_data): |
| raise ValidationError, _("A valid URL is required.") |
| |
| def isValidHTML(field_data, all_data): |
| import urllib, urllib2 |
| try: |
| u = urllib2.urlopen('http://validator.w3.org/check', urllib.urlencode({'fragment': field_data, 'output': 'xml'})) |
| except: |
| # Validator or Internet connection is unavailable. Fail silently. |
| return |
| html_is_valid = (u.headers.get('x-w3c-validator-status', 'Invalid') == 'Valid') |
| if html_is_valid: |
| return |
| from xml.dom.minidom import parseString |
| error_messages = [e.firstChild.wholeText for e in parseString(u.read()).getElementsByTagName('messages')[0].getElementsByTagName('msg')] |
| raise ValidationError, _("Valid HTML is required. Specific errors are:\n%s") % "\n".join(error_messages) |
| |
| def isWellFormedXml(field_data, all_data): |
| from xml.dom.minidom import parseString |
| try: |
| parseString(field_data) |
| except Exception, e: # Naked except because we're not sure what will be thrown |
| raise ValidationError, _("Badly formed XML: %s") % str(e) |
| |
| def isWellFormedXmlFragment(field_data, all_data): |
| isWellFormedXml('<root>%s</root>' % field_data, all_data) |
| |
| def isExistingURL(field_data, all_data): |
| try: |
| headers = { |
| "Accept" : "text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5", |
| "Accept-Language" : "en-us,en;q=0.5", |
| "Accept-Charset": "ISO-8859-1,utf-8;q=0.7,*;q=0.7", |
| "Connection" : "close", |
| "User-Agent": settings.URL_VALIDATOR_USER_AGENT |
| } |
| req = urllib2.Request(field_data,None, headers) |
| u = urllib2.urlopen(req) |
| except ValueError: |
| raise ValidationError, _("Invalid URL: %s") % field_data |
| except urllib2.HTTPError, e: |
| # 401s are valid; they just mean authorization is required. |
| # 301 and 302 are redirects; they just mean look somewhere else. |
| if str(e.code) not in ('401','301','302'): |
| raise ValidationError, _("The URL %s is a broken link.") % field_data |
| except: # urllib2.URLError, httplib.InvalidURL, etc. |
| raise ValidationError, _("The URL %s is a broken link.") % field_data |
| |
| def isValidUSState(field_data, all_data): |
| "Checks that the given string is a valid two-letter U.S. state abbreviation" |
| states = ['AA', 'AE', 'AK', 'AL', 'AP', 'AR', 'AS', 'AZ', 'CA', 'CO', 'CT', 'DC', 'DE', 'FL', 'FM', 'GA', 'GU', 'HI', 'IA', 'ID', 'IL', 'IN', 'KS', 'KY', 'LA', 'MA', 'MD', 'ME', 'MH', 'MI', 'MN', 'MO', 'MP', 'MS', 'MT', 'NC', 'ND', 'NE', 'NH', 'NJ', 'NM', 'NV', 'NY', 'OH', 'OK', 'OR', 'PA', 'PR', 'PW', 'RI', 'SC', 'SD', 'TN', 'TX', 'UT', 'VA', 'VI', 'VT', 'WA', 'WI', 'WV', 'WY'] |
| if field_data.upper() not in states: |
| raise ValidationError, _("Enter a valid U.S. state abbreviation.") |
| |
| def hasNoProfanities(field_data, all_data): |
| """ |
| Checks that the given string has no profanities in it. This does a simple |
| check for whether each profanity exists within the string, so 'fuck' will |
| catch 'motherfucker' as well. Raises a ValidationError such as: |
| Watch your mouth! The words "f--k" and "s--t" are not allowed here. |
| """ |
| field_data = field_data.lower() # normalize |
| words_seen = [w for w in settings.PROFANITIES_LIST if w in field_data] |
| if words_seen: |
| from django.utils.text import get_text_list |
| plural = len(words_seen) |
| raise ValidationError, ungettext("Watch your mouth! The word %s is not allowed here.", |
| "Watch your mouth! The words %s are not allowed here.", plural) % \ |
| get_text_list(['"%s%s%s"' % (i[0], '-'*(len(i)-2), i[-1]) for i in words_seen], _('and')) |
| |
| class AlwaysMatchesOtherField(object): |
| def __init__(self, other_field_name, error_message=None): |
| self.other = other_field_name |
| self.error_message = error_message or lazy_inter(ugettext_lazy("This field must match the '%s' field."), self.other) |
| self.always_test = True |
| |
| def __call__(self, field_data, all_data): |
| if field_data != all_data[self.other]: |
| raise ValidationError, self.error_message |
| |
| class ValidateIfOtherFieldEquals(object): |
| def __init__(self, other_field, other_value, validator_list): |
| self.other_field, self.other_value = other_field, other_value |
| self.validator_list = validator_list |
| self.always_test = True |
| |
| def __call__(self, field_data, all_data): |
| if self.other_field in all_data and all_data[self.other_field] == self.other_value: |
| for v in self.validator_list: |
| v(field_data, all_data) |
| |
| class RequiredIfOtherFieldNotGiven(object): |
| def __init__(self, other_field_name, error_message=ugettext_lazy("Please enter something for at least one field.")): |
| self.other, self.error_message = other_field_name, error_message |
| self.always_test = True |
| |
| def __call__(self, field_data, all_data): |
| if not all_data.get(self.other, False) and not field_data: |
| raise ValidationError, self.error_message |
| |
| class RequiredIfOtherFieldsGiven(object): |
| def __init__(self, other_field_names, error_message=ugettext_lazy("Please enter both fields or leave them both empty.")): |
| self.other, self.error_message = other_field_names, error_message |
| self.always_test = True |
| |
| def __call__(self, field_data, all_data): |
| for field in self.other: |
| if all_data.get(field, False) and not field_data: |
| raise ValidationError, self.error_message |
| |
| class RequiredIfOtherFieldGiven(RequiredIfOtherFieldsGiven): |
| "Like RequiredIfOtherFieldsGiven, but takes a single field name instead of a list." |
| def __init__(self, other_field_name, error_message=ugettext_lazy("Please enter both fields or leave them both empty.")): |
| RequiredIfOtherFieldsGiven.__init__(self, [other_field_name], error_message) |
| |
| class RequiredIfOtherFieldEquals(object): |
| def __init__(self, other_field, other_value, error_message=None, other_label=None): |
| self.other_field = other_field |
| self.other_value = other_value |
| other_label = other_label or other_value |
| self.error_message = error_message or lazy_inter(ugettext_lazy("This field must be given if %(field)s is %(value)s"), { |
| 'field': other_field, 'value': other_label}) |
| self.always_test = True |
| |
| def __call__(self, field_data, all_data): |
| if self.other_field in all_data and all_data[self.other_field] == self.other_value and not field_data: |
| raise ValidationError(self.error_message) |
| |
| class RequiredIfOtherFieldDoesNotEqual(object): |
| def __init__(self, other_field, other_value, other_label=None, error_message=None): |
| self.other_field = other_field |
| self.other_value = other_value |
| other_label = other_label or other_value |
| self.error_message = error_message or lazy_inter(ugettext_lazy("This field must be given if %(field)s is not %(value)s"), { |
| 'field': other_field, 'value': other_label}) |
| self.always_test = True |
| |
| def __call__(self, field_data, all_data): |
| if self.other_field in all_data and all_data[self.other_field] != self.other_value and not field_data: |
| raise ValidationError(self.error_message) |
| |
| class IsLessThanOtherField(object): |
| def __init__(self, other_field_name, error_message): |
| self.other, self.error_message = other_field_name, error_message |
| |
| def __call__(self, field_data, all_data): |
| if field_data > all_data[self.other]: |
| raise ValidationError, self.error_message |
| |
| class UniqueAmongstFieldsWithPrefix(object): |
| def __init__(self, field_name, prefix, error_message): |
| self.field_name, self.prefix = field_name, prefix |
| self.error_message = error_message or ugettext_lazy("Duplicate values are not allowed.") |
| |
| def __call__(self, field_data, all_data): |
| for field_name, value in all_data.items(): |
| if field_name != self.field_name and value == field_data: |
| raise ValidationError, self.error_message |
| |
| class NumberIsInRange(object): |
| """ |
| Validator that tests if a value is in a range (inclusive). |
| """ |
| def __init__(self, lower=None, upper=None, error_message=''): |
| self.lower, self.upper = lower, upper |
| if not error_message: |
| if lower and upper: |
| self.error_message = _("This value must be between %(lower)s and %(upper)s.") % {'lower': lower, 'upper': upper} |
| elif lower: |
| self.error_message = _("This value must be at least %s.") % lower |
| elif upper: |
| self.error_message = _("This value must be no more than %s.") % upper |
| else: |
| self.error_message = error_message |
| |
| def __call__(self, field_data, all_data): |
| # Try to make the value numeric. If this fails, we assume another |
| # validator will catch the problem. |
| try: |
| val = float(field_data) |
| except ValueError: |
| return |
| |
| # Now validate |
| if self.lower and self.upper and (val < self.lower or val > self.upper): |
| raise ValidationError(self.error_message) |
| elif self.lower and val < self.lower: |
| raise ValidationError(self.error_message) |
| elif self.upper and val > self.upper: |
| raise ValidationError(self.error_message) |
| |
| class IsAPowerOf(object): |
| """ |
| Usage: If you create an instance of the IsPowerOf validator: |
| v = IsAPowerOf(2) |
| |
| The following calls will succeed: |
| v(4, None) |
| v(8, None) |
| v(16, None) |
| |
| But this call: |
| v(17, None) |
| will raise "django.core.validators.ValidationError: ['This value must be a power of 2.']" |
| """ |
| def __init__(self, power_of): |
| self.power_of = power_of |
| |
| def __call__(self, field_data, all_data): |
| from math import log |
| val = log(int(field_data)) / log(self.power_of) |
| if val != int(val): |
| raise ValidationError, _("This value must be a power of %s.") % self.power_of |
| |
| class IsValidDecimal(object): |
| def __init__(self, max_digits, decimal_places): |
| self.max_digits, self.decimal_places = max_digits, decimal_places |
| |
| def __call__(self, field_data, all_data): |
| try: |
| val = Decimal(field_data) |
| except DecimalException: |
| raise ValidationError, _("Please enter a valid decimal number.") |
| |
| pieces = str(val).lstrip("-").split('.') |
| decimals = (len(pieces) == 2) and len(pieces[1]) or 0 |
| digits = len(pieces[0]) |
| |
| if digits + decimals > self.max_digits: |
| raise ValidationError, ungettext("Please enter a valid decimal number with at most %s total digit.", |
| "Please enter a valid decimal number with at most %s total digits.", self.max_digits) % self.max_digits |
| if digits > (self.max_digits - self.decimal_places): |
| raise ValidationError, ungettext( "Please enter a valid decimal number with a whole part of at most %s digit.", |
| "Please enter a valid decimal number with a whole part of at most %s digits.", str(self.max_digits-self.decimal_places)) % str(self.max_digits-self.decimal_places) |
| if decimals > self.decimal_places: |
| raise ValidationError, ungettext("Please enter a valid decimal number with at most %s decimal place.", |
| "Please enter a valid decimal number with at most %s decimal places.", self.decimal_places) % self.decimal_places |
| |
| def isValidFloat(field_data, all_data): |
| data = smart_str(field_data) |
| try: |
| float(data) |
| except ValueError: |
| raise ValidationError, _("Please enter a valid floating point number.") |
| |
| class HasAllowableSize(object): |
| """ |
| Checks that the file-upload field data is a certain size. min_size and |
| max_size are measurements in bytes. |
| """ |
| def __init__(self, min_size=None, max_size=None, min_error_message=None, max_error_message=None): |
| self.min_size, self.max_size = min_size, max_size |
| self.min_error_message = min_error_message or lazy_inter(ugettext_lazy("Make sure your uploaded file is at least %s bytes big."), min_size) |
| self.max_error_message = max_error_message or lazy_inter(ugettext_lazy("Make sure your uploaded file is at most %s bytes big."), max_size) |
| |
| def __call__(self, field_data, all_data): |
| try: |
| content = field_data.read() |
| except TypeError: |
| raise ValidationError, ugettext_lazy("No file was submitted. Check the encoding type on the form.") |
| if self.min_size is not None and len(content) < self.min_size: |
| raise ValidationError, self.min_error_message |
| if self.max_size is not None and len(content) > self.max_size: |
| raise ValidationError, self.max_error_message |
| |
| class MatchesRegularExpression(object): |
| """ |
| Checks that the field matches the given regular-expression. The regex |
| should be in string format, not already compiled. |
| """ |
| def __init__(self, regexp, error_message=ugettext_lazy("The format for this field is wrong.")): |
| self.regexp = re.compile(regexp) |
| self.error_message = error_message |
| |
| def __call__(self, field_data, all_data): |
| if not self.regexp.search(field_data): |
| raise ValidationError(self.error_message) |
| |
| class AnyValidator(object): |
| """ |
| This validator tries all given validators. If any one of them succeeds, |
| validation passes. If none of them succeeds, the given message is thrown |
| as a validation error. The message is rather unspecific, so it's best to |
| specify one on instantiation. |
| """ |
| def __init__(self, validator_list=None, error_message=ugettext_lazy("This field is invalid.")): |
| if validator_list is None: validator_list = [] |
| self.validator_list = validator_list |
| self.error_message = error_message |
| for v in validator_list: |
| if hasattr(v, 'always_test'): |
| self.always_test = True |
| |
| def __call__(self, field_data, all_data): |
| for v in self.validator_list: |
| try: |
| v(field_data, all_data) |
| return |
| except ValidationError, e: |
| pass |
| raise ValidationError(self.error_message) |
| |
| class URLMimeTypeCheck(object): |
| "Checks that the provided URL points to a document with a listed mime type" |
| class CouldNotRetrieve(ValidationError): |
| pass |
| class InvalidContentType(ValidationError): |
| pass |
| |
| def __init__(self, mime_type_list): |
| self.mime_type_list = mime_type_list |
| |
| def __call__(self, field_data, all_data): |
| import urllib2 |
| try: |
| isValidURL(field_data, all_data) |
| except ValidationError: |
| raise |
| try: |
| info = urllib2.urlopen(field_data).info() |
| except (urllib2.HTTPError, urllib2.URLError): |
| raise URLMimeTypeCheck.CouldNotRetrieve, _("Could not retrieve anything from %s.") % field_data |
| content_type = info['content-type'] |
| if content_type not in self.mime_type_list: |
| raise URLMimeTypeCheck.InvalidContentType, _("The URL %(url)s returned the invalid Content-Type header '%(contenttype)s'.") % { |
| 'url': field_data, 'contenttype': content_type} |
| |
| class RelaxNGCompact(object): |
| "Validate against a Relax NG compact schema" |
| def __init__(self, schema_path, additional_root_element=None): |
| self.schema_path = schema_path |
| self.additional_root_element = additional_root_element |
| |
| def __call__(self, field_data, all_data): |
| import os, tempfile |
| if self.additional_root_element: |
| field_data = '<%(are)s>%(data)s\n</%(are)s>' % { |
| 'are': self.additional_root_element, |
| 'data': field_data |
| } |
| filename = tempfile.mktemp() # Insecure, but nothing else worked |
| fp = open(filename, 'w') |
| fp.write(field_data) |
| fp.close() |
| if not os.path.exists(settings.JING_PATH): |
| raise Exception, "%s not found!" % settings.JING_PATH |
| p = os.popen('%s -c %s %s' % (settings.JING_PATH, self.schema_path, filename)) |
| errors = [line.strip() for line in p.readlines()] |
| p.close() |
| os.unlink(filename) |
| display_errors = [] |
| lines = field_data.split('\n') |
| for error in errors: |
| ignored, line, level, message = error.split(':', 3) |
| # Scrape the Jing error messages to reword them more nicely. |
| m = re.search(r'Expected "(.*?)" to terminate element starting on line (\d+)', message) |
| if m: |
| display_errors.append(_('Please close the unclosed %(tag)s tag from line %(line)s. (Line starts with "%(start)s".)') % \ |
| {'tag':m.group(1).replace('/', ''), 'line':m.group(2), 'start':lines[int(m.group(2)) - 1][:30]}) |
| continue |
| if message.strip() == 'text not allowed here': |
| display_errors.append(_('Some text starting on line %(line)s is not allowed in that context. (Line starts with "%(start)s".)') % \ |
| {'line':line, 'start':lines[int(line) - 1][:30]}) |
| continue |
| m = re.search(r'\s*attribute "(.*?)" not allowed at this point; ignored', message) |
| if m: |
| display_errors.append(_('"%(attr)s" on line %(line)s is an invalid attribute. (Line starts with "%(start)s".)') % \ |
| {'attr':m.group(1), 'line':line, 'start':lines[int(line) - 1][:30]}) |
| continue |
| m = re.search(r'\s*unknown element "(.*?)"', message) |
| if m: |
| display_errors.append(_('"<%(tag)s>" on line %(line)s is an invalid tag. (Line starts with "%(start)s".)') % \ |
| {'tag':m.group(1), 'line':line, 'start':lines[int(line) - 1][:30]}) |
| continue |
| if message.strip() == 'required attributes missing': |
| display_errors.append(_('A tag on line %(line)s is missing one or more required attributes. (Line starts with "%(start)s".)') % \ |
| {'line':line, 'start':lines[int(line) - 1][:30]}) |
| continue |
| m = re.search(r'\s*bad value for attribute "(.*?)"', message) |
| if m: |
| display_errors.append(_('The "%(attr)s" attribute on line %(line)s has an invalid value. (Line starts with "%(start)s".)') % \ |
| {'attr':m.group(1), 'line':line, 'start':lines[int(line) - 1][:30]}) |
| continue |
| # Failing all those checks, use the default error message. |
| display_error = 'Line %s: %s [%s]' % (line, message, level.strip()) |
| display_errors.append(display_error) |
| if len(display_errors) > 0: |
| raise ValidationError, display_errors |
