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"""$Id: image.py 988 2008-03-12 18:22:48Z sa3ruby $"""
__author__ = "Sam Ruby <http://intertwingly.net/> and Mark Pilgrim <http://diveintomark.org/>"
__version__ = "$Revision: 988 $"
__copyright__ = "Copyright (c) 2002 Sam Ruby and Mark Pilgrim"
from base import validatorBase
from validators import *
from extension import extension_everywhere
#
# image element.
#
class image(validatorBase, extension_everywhere):
def getExpectedAttrNames(self):
return [(u'http://www.w3.org/1999/02/22-rdf-syntax-ns#', u'resource'),
(u'http://www.w3.org/1999/02/22-rdf-syntax-ns#', u'about'),
(u'http://www.w3.org/1999/02/22-rdf-syntax-ns#', u'parseType')]
def validate(self):
if self.value.strip():
self.log(UnexpectedText({"parent":self.parent.name, "element":"image"}))
if self.attrs.has_key((rdfNS,"resource")):
return # looks like an RSS 1.0 feed
if not "title" in self.children:
self.log(MissingTitle({"parent":self.name, "element":"title"}))
if not "url" in self.children:
self.log(MissingElement({"parent":self.name, "element":"url"}))
if self.attrs.has_key((rdfNS,"parseType")):
return # looks like an RSS 1.1 feed
if not "link" in self.children:
self.log(MissingLink({"parent":self.name, "element":"link"}))
def do_title(self):
return title(), noduplicates()
def do_link(self):
return link(), noduplicates()
def do_url(self):
return url(), noduplicates()
def do_width(self):
return width(), noduplicates()
def do_height(self):
return height(), noduplicates()
def do_description(self):
return nonhtml(), noduplicates()
def do_dc_creator(self):
return text()
def do_dc_subject(self):
return text() # duplicates allowed
def do_dc_date(self):
return w3cdtf(), noduplicates()
def do_cc_license(self):
return eater()
class link(rfc2396_full):
def validate(self):
rfc2396_full.validate(self)
if hasattr(self.parent.parent, 'link') and \
self.parent.parent.link and self.parent.parent.link != self.value:
self.log(ImageLinkDoesntMatch({"parent":self.parent.name, "element":self.name}))
class url(rfc2396_full):
def validate(self):
rfc2396_full.validate(self)
import re
ext = self.value.split('.')[-1].lower()
if re.match("^\w+$", ext) and ext not in ['jpg','jpeg','gif','png']:
self.log(ImageUrlFormat({"parent":self.parent.name, "element":self.name}))
class title(nonhtml, noduplicates):
def validate(self):
if not self.value.strip():
self.log(NotBlank({"parent":self.parent.name, "element":self.name}))
else:
self.log(ValidTitle({"parent":self.parent.name, "element":self.name}))
nonhtml.validate(self)
if hasattr(self.parent.parent, 'title') and \
self.parent.parent.title and self.parent.parent.title != self.value:
self.log(ImageTitleDoesntMatch({"parent":self.parent.name, "element":self.name}))
class width(text, noduplicates):
def validate(self):
try:
w = int(self.value)
if (w <= 0) or (w > 144):
self.log(InvalidWidth({"parent":self.parent.name, "element":self.name, "value":self.value}))
else:
self.log(ValidWidth({"parent":self.parent.name, "element":self.name}))
except ValueError:
self.log(InvalidWidth({"parent":self.parent.name, "element":self.name, "value":self.value}))
class height(text, noduplicates):
def validate(self):
try:
h = int(self.value)
if (h <= 0) or (h > 400):
self.log(InvalidHeight({"parent":self.parent.name, "element":self.name, "value":self.value}))
else:
self.log(ValidHeight({"parent":self.parent.name, "element":self.name}))
except ValueError:
self.log(InvalidHeight({"parent":self.parent.name, "element":self.name, "value":self.value}))
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