| 109 | | def isValidIPAddress4(field_data, all_data): |
|---|
| 110 | | if not ip4_re.search(field_data): |
|---|
| 111 | | raise ValidationError, _("Please enter a valid IP address.") |
|---|
| 112 | | |
|---|
| 113 | | def isNotEmpty(field_data, all_data): |
|---|
| 114 | | if field_data.strip() == '': |
|---|
| 115 | | raise ValidationError, _("Empty values are not allowed here.") |
|---|
| 116 | | |
|---|
| 117 | | def isOnlyDigits(field_data, all_data): |
|---|
| 118 | | if not field_data.isdigit(): |
|---|
| 119 | | raise ValidationError, _("Non-numeric characters aren't allowed here.") |
|---|
| 120 | | |
|---|
| 121 | | def isNotOnlyDigits(field_data, all_data): |
|---|
| 122 | | if field_data.isdigit(): |
|---|
| 123 | | raise ValidationError, _("This value can't be comprised solely of digits.") |
|---|
| 124 | | |
|---|
| 125 | | def isInteger(field_data, all_data): |
|---|
| 126 | | # This differs from isOnlyDigits because this accepts the negative sign |
|---|
| 127 | | if not integer_re.search(field_data): |
|---|
| 128 | | raise ValidationError, _("Enter a whole number.") |
|---|
| 129 | | |
|---|
| 130 | | def isOnlyLetters(field_data, all_data): |
|---|
| 131 | | if not field_data.isalpha(): |
|---|
| 132 | | raise ValidationError, _("Only alphabetical characters are allowed here.") |
|---|
| 133 | | |
|---|
| 134 | | def _isValidDate(date_string): |
|---|
| 135 | | """ |
|---|
| 136 | | A helper function used by isValidANSIDate and isValidANSIDatetime to |
|---|
| 137 | | check if the date is valid. The date string is assumed to already be in |
|---|
| 138 | | YYYY-MM-DD format. |
|---|
| 139 | | """ |
|---|
| 140 | | from datetime import date |
|---|
| 141 | | # Could use time.strptime here and catch errors, but datetime.date below |
|---|
| 142 | | # produces much friendlier error messages. |
|---|
| 143 | | year, month, day = map(int, date_string.split('-')) |
|---|
| 144 | | # This check is needed because strftime is used when saving the date |
|---|
| 145 | | # value to the database, and strftime requires that the year be >=1900. |
|---|
| 146 | | if year < 1900: |
|---|
| 147 | | raise ValidationError, _('Year must be 1900 or later.') |
|---|
| 148 | | try: |
|---|
| 149 | | date(year, month, day) |
|---|
| 150 | | except ValueError, e: |
|---|
| 151 | | msg = _('Invalid date: %s') % _(str(e)) |
|---|
| 152 | | raise ValidationError, msg |
|---|
| 153 | | |
|---|
| 154 | | def isValidANSIDate(field_data, all_data): |
|---|
| 155 | | if not ansi_date_re.search(field_data): |
|---|
| 156 | | raise ValidationError, _('Enter a valid date in YYYY-MM-DD format.') |
|---|
| 157 | | _isValidDate(field_data) |
|---|
| 158 | | |
|---|
| 159 | | def isValidANSITime(field_data, all_data): |
|---|
| 160 | | if not ansi_time_re.search(field_data): |
|---|
| 161 | | raise ValidationError, _('Enter a valid time in HH:MM format.') |
|---|
| 162 | | |
|---|
| 163 | | def isValidANSIDatetime(field_data, all_data): |
|---|
| 164 | | if not ansi_datetime_re.search(field_data): |
|---|
| 165 | | raise ValidationError, _('Enter a valid date/time in YYYY-MM-DD HH:MM format.') |
|---|
| 166 | | _isValidDate(field_data.split()[0]) |
|---|
| 167 | | |
|---|
| 168 | | def isValidEmail(field_data, all_data): |
|---|
| 169 | | if not email_re.search(field_data): |
|---|
| 170 | | raise ValidationError, _('Enter a valid e-mail address.') |
|---|
| 171 | | |
|---|
| 172 | | def isValidImage(field_data, all_data): |
|---|
| 173 | | """ |
|---|
| 174 | | Checks that the file-upload field data contains a valid image (GIF, JPG, |
|---|
| 175 | | PNG, possibly others -- whatever the Python Imaging Library supports). |
|---|
| 176 | | """ |
|---|
| 177 | | from PIL import Image |
|---|
| 178 | | from cStringIO import StringIO |
|---|
| 179 | | try: |
|---|
| 180 | | content = field_data['content'] |
|---|
| 181 | | except TypeError: |
|---|
| 182 | | raise ValidationError, _("No file was submitted. Check the encoding type on the form.") |
|---|
| 183 | | try: |
|---|
| 184 | | # load() is the only method that can spot a truncated JPEG, |
|---|
| 185 | | # but it cannot be called sanely after verify() |
|---|
| 186 | | trial_image = Image.open(StringIO(content)) |
|---|
| 187 | | trial_image.load() |
|---|
| 188 | | # verify() is the only method that can spot a corrupt PNG, |
|---|
| 189 | | # but it must be called immediately after the constructor |
|---|
| 190 | | trial_image = Image.open(StringIO(content)) |
|---|
| 191 | | trial_image.verify() |
|---|
| 192 | | except Exception: # Python Imaging Library doesn't recognize it as an image |
|---|
| 193 | | raise ValidationError, _("Upload a valid image. The file you uploaded was either not an image or a corrupted image.") |
|---|
| 194 | | |
|---|
| 195 | | def isValidImageURL(field_data, all_data): |
|---|
| 196 | | uc = URLMimeTypeCheck(('image/jpeg', 'image/gif', 'image/png')) |
|---|
| 197 | | try: |
|---|
| 198 | | uc(field_data, all_data) |
|---|
| 199 | | except URLMimeTypeCheck.InvalidContentType: |
|---|
| 200 | | raise ValidationError, _("The URL %s does not point to a valid image.") % field_data |
|---|
| 201 | | |
|---|
| 202 | | def isValidPhone(field_data, all_data): |
|---|
| 203 | | if not phone_re.search(field_data): |
|---|
| 204 | | raise ValidationError, _('Phone numbers must be in XXX-XXX-XXXX format. "%s" is invalid.') % field_data |
|---|
| 205 | | |
|---|
| 206 | | def isValidQuicktimeVideoURL(field_data, all_data): |
|---|
| 207 | | "Checks that the given URL is a video that can be played by QuickTime (qt, mpeg)" |
|---|
| 208 | | uc = URLMimeTypeCheck(('video/quicktime', 'video/mpeg',)) |
|---|
| 209 | | try: |
|---|
| 210 | | uc(field_data, all_data) |
|---|
| 211 | | except URLMimeTypeCheck.InvalidContentType: |
|---|
| 212 | | raise ValidationError, _("The URL %s does not point to a valid QuickTime video.") % field_data |
|---|
| 213 | | |
|---|
| 214 | | def isValidURL(field_data, all_data): |
|---|
| 215 | | if not url_re.search(field_data): |
|---|
| 216 | | raise ValidationError, _("A valid URL is required.") |
|---|
| 217 | | |
|---|
| 218 | | def isValidHTML(field_data, all_data): |
|---|
| 219 | | import urllib, urllib2 |
|---|
| 220 | | try: |
|---|
| 221 | | u = urllib2.urlopen('http://validator.w3.org/check', urllib.urlencode({'fragment': field_data, 'output': 'xml'})) |
|---|
| 222 | | except: |
|---|
| 223 | | # Validator or Internet connection is unavailable. Fail silently. |
|---|
| 224 | | return |
|---|
| 225 | | html_is_valid = (u.headers.get('x-w3c-validator-status', 'Invalid') == 'Valid') |
|---|
| 226 | | if html_is_valid: |
|---|
| 227 | | return |
|---|
| 228 | | from xml.dom.minidom import parseString |
|---|
| 229 | | error_messages = [e.firstChild.wholeText for e in parseString(u.read()).getElementsByTagName('messages')[0].getElementsByTagName('msg')] |
|---|
| 230 | | raise ValidationError, _("Valid HTML is required. Specific errors are:\n%s") % "\n".join(error_messages) |
|---|
| 231 | | |
|---|
| 232 | | def isWellFormedXml(field_data, all_data): |
|---|
| 233 | | from xml.dom.minidom import parseString |
|---|
| 234 | | try: |
|---|
| 235 | | parseString(field_data) |
|---|
| 236 | | except Exception, e: # Naked except because we're not sure what will be thrown |
|---|
| 237 | | raise ValidationError, _("Badly formed XML: %s") % str(e) |
|---|
| 238 | | |
|---|
| 239 | | def isWellFormedXmlFragment(field_data, all_data): |
|---|
| 240 | | isWellFormedXml('<root>%s</root>' % field_data, all_data) |
|---|
| 241 | | |
|---|
| 242 | | def isExistingURL(field_data, all_data): |
|---|
| | 53 | def validate_existing_url(value): |
|---|
| 261 | | raise ValidationError, _("The URL %s is a broken link.") % field_data |
|---|
| 262 | | |
|---|
| 263 | | def isValidUSState(field_data, all_data): |
|---|
| 264 | | "Checks that the given string is a valid two-letter U.S. state abbreviation" |
|---|
| 265 | | 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'] |
|---|
| 266 | | if field_data.upper() not in states: |
|---|
| 267 | | raise ValidationError, _("Enter a valid U.S. state abbreviation.") |
|---|
| 268 | | |
|---|
| 269 | | def hasNoProfanities(field_data, all_data): |
|---|
| 270 | | """ |
|---|
| 271 | | Checks that the given string has no profanities in it. This does a simple |
|---|
| 272 | | check for whether each profanity exists within the string, so 'fuck' will |
|---|
| 273 | | catch 'motherfucker' as well. Raises a ValidationError such as: |
|---|
| 274 | | Watch your mouth! The words "f--k" and "s--t" are not allowed here. |
|---|
| 275 | | """ |
|---|
| 276 | | field_data = field_data.lower() # normalize |
|---|
| 277 | | words_seen = [w for w in settings.PROFANITIES_LIST if w in field_data] |
|---|
| 278 | | if words_seen: |
|---|
| 279 | | from django.utils.text import get_text_list |
|---|
| 280 | | plural = len(words_seen) |
|---|
| 281 | | raise ValidationError, ungettext("Watch your mouth! The word %s is not allowed here.", |
|---|
| 282 | | "Watch your mouth! The words %s are not allowed here.", plural) % \ |
|---|
| 283 | | get_text_list(['"%s%s%s"' % (i[0], '-'*(len(i)-2), i[-1]) for i in words_seen], _('and')) |
|---|
| 284 | | |
|---|
| 285 | | class AlwaysMatchesOtherField(object): |
|---|
| 286 | | def __init__(self, other_field_name, error_message=None): |
|---|
| 287 | | self.other = other_field_name |
|---|
| 288 | | self.error_message = error_message or lazy_inter(ugettext_lazy("This field must match the '%s' field."), self.other) |
|---|
| 289 | | self.always_test = True |
|---|
| 290 | | |
|---|
| 291 | | def __call__(self, field_data, all_data): |
|---|
| 292 | | if field_data != all_data[self.other]: |
|---|
| 293 | | raise ValidationError, self.error_message |
|---|
| 294 | | |
|---|
| 295 | | class ValidateIfOtherFieldEquals(object): |
|---|
| 296 | | def __init__(self, other_field, other_value, validator_list): |
|---|
| 297 | | self.other_field, self.other_value = other_field, other_value |
|---|
| 298 | | self.validator_list = validator_list |
|---|
| 299 | | self.always_test = True |
|---|
| 300 | | |
|---|
| 301 | | def __call__(self, field_data, all_data): |
|---|
| 302 | | if self.other_field in all_data and all_data[self.other_field] == self.other_value: |
|---|
| 303 | | for v in self.validator_list: |
|---|
| 304 | | v(field_data, all_data) |
|---|
| | 72 | raise ValidationError, _("The URL %s is a broken link.") % value |
|---|
| 306 | | class RequiredIfOtherFieldNotGiven(object): |
|---|
| 307 | | def __init__(self, other_field_name, error_message=ugettext_lazy("Please enter something for at least one field.")): |
|---|
| 308 | | self.other, self.error_message = other_field_name, error_message |
|---|
| 309 | | self.always_test = True |
|---|
| 310 | | |
|---|
| 311 | | def __call__(self, field_data, all_data): |
|---|
| 312 | | if not all_data.get(self.other, False) and not field_data: |
|---|
| 313 | | raise ValidationError, self.error_message |
|---|
| 314 | | |
|---|
| 315 | | class RequiredIfOtherFieldsGiven(object): |
|---|
| 316 | | def __init__(self, other_field_names, error_message=ugettext_lazy("Please enter both fields or leave them both empty.")): |
|---|
| 317 | | self.other, self.error_message = other_field_names, error_message |
|---|
| 318 | | self.always_test = True |
|---|
| 319 | | |
|---|
| 320 | | def __call__(self, field_data, all_data): |
|---|
| 321 | | for field in self.other: |
|---|
| 322 | | if all_data.get(field, False) and not field_data: |
|---|
| 323 | | raise ValidationError, self.error_message |
|---|
| 324 | | |
|---|
| 325 | | class RequiredIfOtherFieldGiven(RequiredIfOtherFieldsGiven): |
|---|
| 326 | | "Like RequiredIfOtherFieldsGiven, but takes a single field name instead of a list." |
|---|
| 327 | | def __init__(self, other_field_name, error_message=ugettext_lazy("Please enter both fields or leave them both empty.")): |
|---|
| 328 | | RequiredIfOtherFieldsGiven.__init__(self, [other_field_name], error_message) |
|---|
| 329 | | |
|---|
| 330 | | class RequiredIfOtherFieldEquals(object): |
|---|
| 331 | | def __init__(self, other_field, other_value, error_message=None, other_label=None): |
|---|
| 332 | | self.other_field = other_field |
|---|
| 333 | | self.other_value = other_value |
|---|
| 334 | | other_label = other_label or other_value |
|---|
| 335 | | self.error_message = error_message or lazy_inter(ugettext_lazy("This field must be given if %(field)s is %(value)s"), { |
|---|
| 336 | | 'field': other_field, 'value': other_label}) |
|---|
| 337 | | self.always_test = True |
|---|
| 338 | | |
|---|
| 339 | | def __call__(self, field_data, all_data): |
|---|
| 340 | | if self.other_field in all_data and all_data[self.other_field] == self.other_value and not field_data: |
|---|
| 341 | | raise ValidationError(self.error_message) |
|---|
| 342 | | |
|---|
| 343 | | class RequiredIfOtherFieldDoesNotEqual(object): |
|---|
| 344 | | def __init__(self, other_field, other_value, other_label=None, error_message=None): |
|---|
| 345 | | self.other_field = other_field |
|---|
| 346 | | self.other_value = other_value |
|---|
| 347 | | other_label = other_label or other_value |
|---|
| 348 | | self.error_message = error_message or lazy_inter(ugettext_lazy("This field must be given if %(field)s is not %(value)s"), { |
|---|
| 349 | | 'field': other_field, 'value': other_label}) |
|---|
| 350 | | self.always_test = True |
|---|
| 351 | | |
|---|
| 352 | | def __call__(self, field_data, all_data): |
|---|
| 353 | | if self.other_field in all_data and all_data[self.other_field] != self.other_value and not field_data: |
|---|
| 354 | | raise ValidationError(self.error_message) |
|---|
| 355 | | |
|---|
| 356 | | class IsLessThanOtherField(object): |
|---|
| 357 | | def __init__(self, other_field_name, error_message): |
|---|
| 358 | | self.other, self.error_message = other_field_name, error_message |
|---|
| 359 | | |
|---|
| 360 | | def __call__(self, field_data, all_data): |
|---|
| 361 | | if field_data > all_data[self.other]: |
|---|
| 362 | | raise ValidationError, self.error_message |
|---|
| 363 | | |
|---|
| 364 | | class UniqueAmongstFieldsWithPrefix(object): |
|---|
| 365 | | def __init__(self, field_name, prefix, error_message): |
|---|
| 366 | | self.field_name, self.prefix = field_name, prefix |
|---|
| 367 | | self.error_message = error_message or ugettext_lazy("Duplicate values are not allowed.") |
|---|
| 368 | | |
|---|
| 369 | | def __call__(self, field_data, all_data): |
|---|
| 370 | | for field_name, value in all_data.items(): |
|---|
| 371 | | if field_name != self.field_name and value == field_data: |
|---|
| 372 | | raise ValidationError, self.error_message |
|---|
| 373 | | |
|---|
| 374 | | class NumberIsInRange(object): |
|---|
| 375 | | """ |
|---|
| 376 | | Validator that tests if a value is in a range (inclusive). |
|---|
| 377 | | """ |
|---|
| 378 | | def __init__(self, lower=None, upper=None, error_message=''): |
|---|
| 379 | | self.lower, self.upper = lower, upper |
|---|
| 380 | | if not error_message: |
|---|
| 381 | | if lower and upper: |
|---|
| 382 | | self.error_message = _("This value must be between %(lower)s and %(upper)s.") % {'lower': lower, 'upper': upper} |
|---|
| 383 | | elif lower: |
|---|
| 384 | | self.error_message = _("This value must be at least %s.") % lower |
|---|
| 385 | | elif upper: |
|---|
| 386 | | self.error_message = _("This value must be no more than %s.") % upper |
|---|
| 387 | | else: |
|---|
| 388 | | self.error_message = error_message |
|---|
| 389 | | |
|---|
| 390 | | def __call__(self, field_data, all_data): |
|---|
| 391 | | # Try to make the value numeric. If this fails, we assume another |
|---|
| 392 | | # validator will catch the problem. |
|---|
| 393 | | try: |
|---|
| 394 | | val = float(field_data) |
|---|
| 395 | | except ValueError: |
|---|
| 396 | | return |
|---|
| 397 | | |
|---|
| 398 | | # Now validate |
|---|
| 399 | | if self.lower and self.upper and (val < self.lower or val > self.upper): |
|---|
| 400 | | raise ValidationError(self.error_message) |
|---|
| 401 | | elif self.lower and val < self.lower: |
|---|
| 402 | | raise ValidationError(self.error_message) |
|---|
| 403 | | elif self.upper and val > self.upper: |
|---|
| 404 | | raise ValidationError(self.error_message) |
|---|
| 405 | | |
|---|
| 406 | | class IsAPowerOf(object): |
|---|
| 407 | | """ |
|---|
| 408 | | Usage: If you create an instance of the IsPowerOf validator: |
|---|
| 409 | | v = IsAPowerOf(2) |
|---|
| 410 | | |
|---|
| 411 | | The following calls will succeed: |
|---|
| 412 | | v(4, None) |
|---|
| 413 | | v(8, None) |
|---|
| 414 | | v(16, None) |
|---|
| 415 | | |
|---|
| 416 | | But this call: |
|---|
| 417 | | v(17, None) |
|---|
| 418 | | will raise "django.core.validators.ValidationError: ['This value must be a power of 2.']" |
|---|
| 419 | | """ |
|---|
| 420 | | def __init__(self, power_of): |
|---|
| 421 | | self.power_of = power_of |
|---|
| 422 | | |
|---|
| 423 | | def __call__(self, field_data, all_data): |
|---|
| 424 | | from math import log |
|---|
| 425 | | val = log(int(field_data)) / log(self.power_of) |
|---|
| 426 | | if val != int(val): |
|---|
| 427 | | raise ValidationError, _("This value must be a power of %s.") % self.power_of |
|---|
| 428 | | |
|---|
| 429 | | class IsValidDecimal(object): |
|---|
| 430 | | def __init__(self, max_digits, decimal_places): |
|---|
| 431 | | self.max_digits, self.decimal_places = max_digits, decimal_places |
|---|
| 432 | | |
|---|
| 433 | | def __call__(self, field_data, all_data): |
|---|
| 434 | | try: |
|---|
| 435 | | val = Decimal(field_data) |
|---|
| 436 | | except DecimalException: |
|---|
| 437 | | raise ValidationError, _("Please enter a valid decimal number.") |
|---|
| 438 | | |
|---|
| 439 | | pieces = str(val).lstrip("-").split('.') |
|---|
| 440 | | decimals = (len(pieces) == 2) and len(pieces[1]) or 0 |
|---|
| 441 | | digits = len(pieces[0]) |
|---|
| 442 | | |
|---|
| 443 | | if digits + decimals > self.max_digits: |
|---|
| 444 | | raise ValidationError, ungettext("Please enter a valid decimal number with at most %s total digit.", |
|---|
| 445 | | "Please enter a valid decimal number with at most %s total digits.", self.max_digits) % self.max_digits |
|---|
| 446 | | if digits > (self.max_digits - self.decimal_places): |
|---|
| 447 | | raise ValidationError, ungettext( "Please enter a valid decimal number with a whole part of at most %s digit.", |
|---|
| 448 | | "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) |
|---|
| 449 | | if decimals > self.decimal_places: |
|---|
| 450 | | raise ValidationError, ungettext("Please enter a valid decimal number with at most %s decimal place.", |
|---|
| 451 | | "Please enter a valid decimal number with at most %s decimal places.", self.decimal_places) % self.decimal_places |
|---|
| 452 | | |
|---|
| 453 | | def isValidFloat(field_data, all_data): |
|---|
| 454 | | data = smart_str(field_data) |
|---|
| 455 | | try: |
|---|
| 456 | | float(data) |
|---|
| 457 | | except ValueError: |
|---|
| 458 | | raise ValidationError, _("Please enter a valid floating point number.") |
|---|
| 459 | | |
|---|
| 460 | | class HasAllowableSize(object): |
|---|
| 461 | | """ |
|---|
| 462 | | Checks that the file-upload field data is a certain size. min_size and |
|---|
| 463 | | max_size are measurements in bytes. |
|---|
| 464 | | """ |
|---|
| 465 | | def __init__(self, min_size=None, max_size=None, min_error_message=None, max_error_message=None): |
|---|
| 466 | | self.min_size, self.max_size = min_size, max_size |
|---|
| 467 | | 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) |
|---|
| 468 | | 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) |
|---|
| 469 | | |
|---|
| 470 | | def __call__(self, field_data, all_data): |
|---|
| 471 | | try: |
|---|
| 472 | | content = field_data['content'] |
|---|
| 473 | | except TypeError: |
|---|
| 474 | | raise ValidationError, ugettext_lazy("No file was submitted. Check the encoding type on the form.") |
|---|
| 475 | | if self.min_size is not None and len(content) < self.min_size: |
|---|
| 476 | | raise ValidationError, self.min_error_message |
|---|
| 477 | | if self.max_size is not None and len(content) > self.max_size: |
|---|
| 478 | | raise ValidationError, self.max_error_message |
|---|
| 479 | | |
|---|
| 480 | | class MatchesRegularExpression(object): |
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| 481 | | """ |
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| 482 | | Checks that the field matches the given regular-expression. The regex |
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| 483 | | should be in string format, not already compiled. |
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| 484 | | """ |
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| 485 | | def __init__(self, regexp, error_message=ugettext_lazy("The format for this field is wrong.")): |
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| 486 | | self.regexp = re.compile(regexp) |
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| 487 | | self.error_message = error_message |
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| 488 | | |
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| 489 | | def __call__(self, field_data, all_data): |
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| 490 | | if not self.regexp.search(field_data): |
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| 491 | | raise ValidationError(self.error_message) |
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| 492 | | |
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| 493 | | class AnyValidator(object): |
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| 494 | | """ |
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| 495 | | This validator tries all given validators. If any one of them succeeds, |
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| 496 | | validation passes. If none of them succeeds, the given message is thrown |
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| 497 | | as a validation error. The message is rather unspecific, so it's best to |
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| 498 | | specify one on instantiation. |
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| 499 | | """ |
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| 500 | | def __init__(self, validator_list=None, error_message=ugettext_lazy("This field is invalid.")): |
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| 501 | | if validator_list is None: validator_list = [] |
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| 502 | | self.validator_list = validator_list |
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| 503 | | self.error_message = error_message |
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| 504 | | for v in validator_list: |
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| 505 | | if hasattr(v, 'always_test'): |
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| 506 | | self.always_test = True |
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| 507 | | |
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| 508 | | def __call__(self, field_data, all_data): |
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| 509 | | for v in self.validator_list: |
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| 510 | | try: |
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| 511 | | v(field_data, all_data) |
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| 512 | | return |
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| 513 | | except ValidationError, e: |
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| 514 | | pass |
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| 515 | | raise ValidationError(self.error_message) |
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| 516 | | |
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| 517 | | class URLMimeTypeCheck(object): |
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| 518 | | "Checks that the provided URL points to a document with a listed mime type" |
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| 519 | | class CouldNotRetrieve(ValidationError): |
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| 520 | | pass |
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| 521 | | class InvalidContentType(ValidationError): |
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| 522 | | pass |
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| 523 | | |
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| 524 | | def __init__(self, mime_type_list): |
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| 525 | | self.mime_type_list = mime_type_list |
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| 526 | | |
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| 527 | | def __call__(self, field_data, all_data): |
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| 528 | | import urllib2 |
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| 529 | | try: |
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| 530 | | isValidURL(field_data, all_data) |
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| 531 | | except ValidationError: |
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| 532 | | raise |
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| 533 | | try: |
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| 534 | | info = urllib2.urlopen(field_data).info() |
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| 535 | | except (urllib2.HTTPError, urllib2.URLError): |
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| 536 | | raise URLMimeTypeCheck.CouldNotRetrieve, _("Could not retrieve anything from %s.") % field_data |
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| 537 | | content_type = info['content-type'] |
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| 538 | | if content_type not in self.mime_type_list: |
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| 539 | | raise URLMimeTypeCheck.InvalidContentType, _("The URL %(url)s returned the invalid Content-Type header '%(contenttype)s'.") % { |
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| 540 | | 'url': field_data, 'contenttype': content_type} |
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| 541 | | |
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| 542 | | class RelaxNGCompact(object): |
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| 543 | | "Validate against a Relax NG compact schema" |
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| 544 | | def __init__(self, schema_path, additional_root_element=None): |
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| 545 | | self.schema_path = schema_path |
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| 546 | | self.additional_root_element = additional_root_element |
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| 547 | | |
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| 548 | | def __call__(self, field_data, all_data): |
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| 549 | | import os, tempfile |
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| 550 | | if self.additional_root_element: |
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| 551 | | field_data = '<%(are)s>%(data)s\n</%(are)s>' % { |
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| 552 | | 'are': self.additional_root_element, |
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| 553 | | 'data': field_data |
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| 554 | | } |
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| 555 | | filename = tempfile.mktemp() # Insecure, but nothing else worked |
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| 556 | | fp = open(filename, 'w') |
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| 557 | | fp.write(field_data) |
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| 558 | | fp.close() |
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| 559 | | if not os.path.exists(settings.JING_PATH): |
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| 560 | | raise Exception, "%s not found!" % settings.JING_PATH |
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| 561 | | p = os.popen('%s -c %s %s' % (settings.JING_PATH, self.schema_path, filename)) |
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| 562 | | errors = [line.strip() for line in p.readlines()] |
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| 563 | | p.close() |
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| 564 | | os.unlink(filename) |
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| 565 | | display_errors = [] |
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| 566 | | lines = field_data.split('\n') |
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| 567 | | for error in errors: |
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| 568 | | ignored, line, level, message = error.split(':', 3) |
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| 569 | | # Scrape the Jing error messages to reword them more nicely. |
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| 570 | | m = re.search(r'Expected "(.*?)" to terminate element starting on line (\d+)', message) |
|---|
| 571 | | if m: |
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| 572 | | display_errors.append(_('Please close the unclosed %(tag)s tag from line %(line)s. (Line starts with "%(start)s".)') % \ |
|---|
| 573 | | {'tag':m.group(1).replace('/', ''), 'line':m.group(2), 'start':lines[int(m.group(2)) - 1][:30]}) |
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| 574 | | continue |
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| 575 | | if message.strip() == 'text not allowed here': |
|---|
| 576 | | display_errors.append(_('Some text starting on line %(line)s is not allowed in that context. (Line starts with "%(start)s".)') % \ |
|---|
| 577 | | {'line':line, 'start':lines[int(line) - 1][:30]}) |
|---|
| 578 | | continue |
|---|
| 579 | | m = re.search(r'\s*attribute "(.*?)" not allowed at this point; ignored', message) |
|---|
| 580 | | if m: |
|---|
| 581 | | display_errors.append(_('"%(attr)s" on line %(line)s is an invalid attribute. (Line starts with "%(start)s".)') % \ |
|---|
| 582 | | {'attr':m.group(1), 'line':line, 'start':lines[int(line) - 1][:30]}) |
|---|
| 583 | | continue |
|---|
| 584 | | m = re.search(r'\s*unknown element "(.*?)"', message) |
|---|
| 585 | | if m: |
|---|
| 586 | | display_errors.append(_('"<%(tag)s>" on line %(line)s is an invalid tag. (Line starts with "%(start)s".)') % \ |
|---|
| 587 | | {'tag':m.group(1), 'line':line, 'start':lines[int(line) - 1][:30]}) |
|---|
| 588 | | continue |
|---|
| 589 | | if message.strip() == 'required attributes missing': |
|---|
| 590 | | display_errors.append(_('A tag on line %(line)s is missing one or more required attributes. (Line starts with "%(start)s".)') % \ |
|---|
| 591 | | {'line':line, 'start':lines[int(line) - 1][:30]}) |
|---|
| 592 | | continue |
|---|
| 593 | | m = re.search(r'\s*bad value for attribute "(.*?)"', message) |
|---|
| 594 | | if m: |
|---|
| 595 | | display_errors.append(_('The "%(attr)s" attribute on line %(line)s has an invalid value. (Line starts with "%(start)s".)') % \ |
|---|
| 596 | | {'attr':m.group(1), 'line':line, 'start':lines[int(line) - 1][:30]}) |
|---|
| 597 | | continue |
|---|
| 598 | | # Failing all those checks, use the default error message. |
|---|
| 599 | | display_error = 'Line %s: %s [%s]' % (line, message, level.strip()) |
|---|
| 600 | | display_errors.append(display_error) |
|---|
| 601 | | if len(display_errors) > 0: |
|---|
| 602 | | raise ValidationError, display_errors |