def validate_feed(content, content_type, base_uri):
"""Validate the content of an Atom, RSS, or KML feed.
:param content: string containing xml feed
:param content_type: Content-Type HTTP header
:param base_uri: Feed URI for comparison with <link rel="self">
Prints formatted list of warnings and errors for use in doctests.
No return value.
"""
lines = content.split('\n')
result = feedvalidator.validateStream(StringIO(content),
contentType=content_type,
base=base_uri)
errors = []
for error_level in (feedvalidator.logging.Error,
feedvalidator.logging.Warning,
feedvalidator.logging.Info):
for item in result['loggedEvents']:
if isinstance(item, error_level):
errors.append("-------- %s: %s --------" %
(error_level.__name__, item.__class__.__name__))
for key, value in sorted(item.params.items()):
errors.append('%s: %s' % (key.title(), value))
if 'line' not in item.params:
continue
if isinstance(item,
feedvalidator.logging.SelfDoesntMatchLocation):
errors.append('Location: %s' % base_uri)
error_line_number = item.params['line']
column_number = item.params['column']
errors.append('=')
# Wrap the line with the error to make it clearer
# which column contains the error.
max_line_length = 66
wrapped_column_number = column_number % max_line_length
line_number_range = list(
range(max(error_line_number - 2, 1),
min(error_line_number + 3, len(lines))))
for line_number in line_number_range:
unicode_line = unicode(lines[line_number - 1], 'ascii',
'replace')
ascii_line = unicode_line.encode('ascii', 'replace')
wrapped_lines = wrap(ascii_line, max_line_length)
if line_number == error_line_number:
# Point to the column where the error occurs, e.g.
# Error: <feed><entriez>
# Point: ~~~~~~~~~~~~~^~~~~~~~~~~~~~~
point_list = ['~'] * max_line_length
point_list[wrapped_column_number] = '^'
point_string = ''.join(point_list)
index = column_number / max_line_length + 1
wrapped_lines.insert(index, point_string)
errors.append("% 3d: %s" %
(line_number, '\n : '.join(wrapped_lines)))
errors.append('=')
if len(errors) == 0:
print "No Errors"
else:
print '\n'.join(errors)
def _validate(self, headers, body):
if headers.status in [200, 201]:
baseuri = headers.get('content-location', '')
try:
events = feedvalidator.validateStream(cStringIO.StringIO(body),
firstOccurrenceOnly=1,
base=baseuri)['loggedEvents']
except feedvalidator.logging.ValidationFailure, vf:
events = [vf.event]
errors = [event for event in events if isinstance(event, feedvalidator.logging.Error)]
if errors:
self.error(msg.VALID_ATOM, "\n".join(text_formatter(errors)))
warnings = [event for event in events if isinstance(event, feedvalidator.logging.Warning)]
if warnings:
self.warning(msg.VALID_ATOM, "\n".join(text_formatter(warnings)))
if self.verbosity > 2:
infos = [event for event in events if isinstance(event, feedvalidator.logging.Info)]
if infos:
self.info("\n".join(text_formatter(infos)))
if __name__ == '__main__':
# arg 1 is URL to validate
link = sys.argv[1:] and sys.argv[1] or 'http://www.intertwingly.net/blog/index.atom'
link = urlparse.urljoin('file:' + urllib.pathname2url(os.getcwd()) + '/', link)
try:
link = link.decode('utf-8').encode('idna')
except:
pass
print 'Validating %s' % link
curdir = os.path.abspath(os.path.dirname(sys.argv[0]))
basedir = urlparse.urljoin('file:' + curdir, ".")
try:
if link.startswith(basedir):
events = feedvalidator.validateStream(urllib.urlopen(link), firstOccurrenceOnly=1,base=link.replace(basedir,"http://www.feedvalidator.org/"))['loggedEvents']
else:
events = feedvalidator.validateURL(link, firstOccurrenceOnly=1)['loggedEvents']
except feedvalidator.logging.ValidationFailure, vf:
events = [vf.event]
# (optional) arg 2 is compatibility level
# "A" is most basic level
# "AA" mimics online validator
# "AAA" is experimental; these rules WILL change or disappear in future versions
from feedvalidator import compatibility
filter = sys.argv[2:] and sys.argv[2] or "AA"
filterFunc = getattr(compatibility, filter)
events = filterFunc(events)
from feedvalidator.formatter.text_plain import Formatter
link = urlparse.urljoin('file:' + urllib.pathname2url(os.getcwd()) + '/',
link)
try:
link = link.decode('utf-8').encode('idna')
except:
pass
print 'Validating %s' % link
curdir = os.path.abspath(os.path.dirname(sys.argv[0]))
basedir = urlparse.urljoin('file:' + curdir, ".")
try:
if link.startswith(basedir):
events = feedvalidator.validateStream(
urllib.urlopen(link),
firstOccurrenceOnly=1,
base=link.replace(
basedir, "http://www.feedvalidator.org/"))['loggedEvents']
else:
events = feedvalidator.validateURL(
link, firstOccurrenceOnly=1)['loggedEvents']
except feedvalidator.logging.ValidationFailure as vf:
events = [vf.event]
# (optional) arg 2 is compatibility level
# "A" is most basic level
# "AA" mimics online validator
# "AAA" is experimental; these rules WILL change or disappear in future versions
from feedvalidator import compatibility
filter = sys.argv[2:] and sys.argv[2] or "AA"
filterFunc = getattr(compatibility, filter)
def validate_feed(content, content_type, base_uri):
"""Validate the content of an Atom, RSS, or KML feed.
:param content: string containing xml feed
:param content_type: Content-Type HTTP header
:param base_uri: Feed URI for comparison with <link rel="self">
Prints formatted list of warnings and errors for use in doctests.
No return value.
"""
lines = content.split('\n')
result = feedvalidator.validateStream(
StringIO(content),
contentType=content_type,
base=base_uri)
errors = []
for error_level in (feedvalidator.logging.Error,
feedvalidator.logging.Warning,
feedvalidator.logging.Info):
for item in result['loggedEvents']:
if isinstance(item, error_level):
errors.append("-------- %s: %s --------"
% (error_level.__name__, item.__class__.__name__))
for key, value in sorted(item.params.items()):
errors.append('%s: %s' % (key.title(), value))
if 'line' not in item.params:
continue
if isinstance(item,
feedvalidator.logging.SelfDoesntMatchLocation):
errors.append('Location: %s' % base_uri)
error_line_number = item.params['line']
column_number = item.params['column']
errors.append('=')
# Wrap the line with the error to make it clearer
# which column contains the error.
max_line_length = 66
wrapped_column_number = column_number % max_line_length
line_number_range = range(
max(error_line_number-2, 1),
min(error_line_number+3, len(lines)))
for line_number in line_number_range:
unicode_line = unicode(
lines[line_number-1], 'ascii', 'replace')
ascii_line = unicode_line.encode('ascii', 'replace')
wrapped_lines = wrap(ascii_line, max_line_length)
if line_number == error_line_number:
# Point to the column where the error occurs, e.g.
# Error: <feed><entriez>
# Point: ~~~~~~~~~~~~~^~~~~~~~~~~~~~~
point_list = ['~'] * max_line_length
point_list[wrapped_column_number] = '^'
point_string = ''.join(point_list)
index = column_number/max_line_length + 1
wrapped_lines.insert(index, point_string)
errors.append(
"% 3d: %s" % (line_number,
'\n : '.join(wrapped_lines)))
errors.append('=')
if len(errors) == 0:
print "No Errors"
else:
print '\n'.join(errors)
