def validate(self, section):
if not isinstance(section, ConfigSection):
raise ValidationError('Not a section')
# Rebuild the section using schema:
validated_section = ConfigSection(section.name, section.parent,
position=section.position)
# Validate the section's argument:
if self.meta['args'] is None and section.args is not None:
raise ValidationError('section %s, this section does not take '
'any argument' % section.name,
position=section.position)
elif self.meta['args'] is not None:
try:
validated_args = self.meta['args'].validate(section.args_raw)
except ValidationError as err:
msg = 'section %s, arguments, %s' % (section.name, err)
raise ValidationError(msg, position=err.position)
else:
validated_section.args = validated_args
# Validate the section's children:
for name, container in self.keys.items():
if isinstance(container, Section):
# Validate subsections of this section:
subsections = list(section.subsections(name))
# Check for repeat option:
rmin, rmax = container.meta['repeat']
if rmax is not None and rmin > rmax:
raise ValidationError('section %s, rmin > rmax' % name)
if len(subsections) < rmin:
raise ValidationError('section %s, section must be defined'
' at least %d times' % (name, rmin))
if rmax is not None and len(subsections) > rmax:
raise ValidationError('section %s, section must be defined'
' at max %d times' % (name, rmax))
# Do the children validation:
args = set() # Store the already seen args
for subsection in subsections:
# Check for unique option:
if container.meta['unique']:
args_value = None if subsection.args is None else tuple(subsection.args)
if args_value in args:
msg = 'section %s, section must be unique' % name
raise ValidationError(msg, position=subsection.position)
else:
args.add(args_value)
# Container validation:
validated_subsection = container.validate(subsection)
validated_section.register(validated_subsection, name=name)
elif isinstance(container, Container):
# Validate all other types of containers:
try:
validated_value = container.validate(section.get(name, raw=False))
except ValidationError as err:
raise ValidationError('section %s, key %s, %s' % (section.name, name, err),
position=err.position)
else:
validated_section.register(validated_value, name=name)
# Handle the allow_unknown meta option:
for name, child in section.iteritems():
if name not in validated_section:
if self.meta['allow_unknown']:
validated_section.register(child, name=name)
else:
msg = 'section %s, unknown key %s' % (section.name, name)
raise ValidationError(msg, position=child.position)
return validated_section
