def check_fonts(container):
font_map = {}
errors = []
for name, mt in container.mime_map.iteritems():
if mt in OEB_FONTS:
raw = container.raw_data(name)
try:
name_map = get_all_font_names(raw)
except Exception as e:
errors.append(InvalidFont(_('Not a valid font: %s') % e, name))
continue
font_map[name] = name_map.get('family_name', None) or name_map.get(
'preferred_family_name', None) or name_map.get(
'wws_family_name', None)
try:
embeddable, fs_type = is_font_embeddable(raw)
except UnsupportedFont:
embeddable = True
if not embeddable:
errors.append(NotEmbeddable(name, fs_type))
sheets = []
for name, mt in container.mime_map.iteritems():
if mt in OEB_STYLES:
try:
sheets.append((name, container.parsed(name), None))
except Exception:
pass # Could not parse, ignore
elif mt in OEB_DOCS:
for style in container.parsed(name).xpath(
'//*[local-name()="style"]'):
if style.get('type', 'text/css') == 'text/css' and style.text:
sheets.append((name, container.parse_css(style.text),
style.sourceline))
for name, sheet, line_offset in sheets:
for rule in sheet.cssRules.rulesOfType(CSSRule.FONT_FACE_RULE):
src = rule.style.getPropertyCSSValue('src')
if src is not None and src.length > 0:
href = getattr(src.item(0), 'uri', None)
if href is not None:
fname = container.href_to_name(href, name)
font_name = font_map.get(fname, None)
if font_name is None:
continue
families = parse_font_family(
rule.style.getPropertyValue('font-family'))
if families:
if families[0] != font_name:
errors.append(
FontAliasing(font_name, families[0], name,
line_offset))
return errors
def check_fonts(container):
font_map = {}
errors = []
for name, mt in iteritems(container.mime_map):
if mt in OEB_FONTS:
raw = container.raw_data(name)
try:
name_map = get_all_font_names(raw)
except Exception as e:
errors.append(InvalidFont(_('Not a valid font: %s') % e, name))
continue
font_map[name] = name_map.get('family_name', None) or name_map.get('preferred_family_name', None) or name_map.get('wws_family_name', None)
try:
embeddable, fs_type = is_font_embeddable(raw)
except UnsupportedFont:
embeddable = True
if not embeddable:
errors.append(NotEmbeddable(name, fs_type))
sheets = []
for name, mt in iteritems(container.mime_map):
if mt in OEB_STYLES:
try:
sheets.append((name, container.parsed(name), None))
except Exception:
pass # Could not parse, ignore
elif mt in OEB_DOCS:
for style in container.parsed(name).xpath('//*[local-name()="style"]'):
if style.get('type', 'text/css') == 'text/css' and style.text:
sheets.append((name, container.parse_css(style.text), style.sourceline))
for name, sheet, line_offset in sheets:
for rule in sheet.cssRules.rulesOfType(CSSRule.FONT_FACE_RULE):
src = rule.style.getPropertyCSSValue('src')
if src is not None and src.length > 0:
href = getattr(src.item(0), 'uri', None)
if href is not None:
fname = container.href_to_name(href, name)
font_name = font_map.get(fname, None)
if font_name is None:
continue
families = parse_font_family(rule.style.getPropertyValue('font-family'))
if families:
if families[0] != font_name:
errors.append(FontAliasing(font_name, families[0], name, line_offset))
return errors