def process_css_file_form_2_imports(page, file, url):
output = []
offset = 0
match_iter = IMPORT_FORM_2.finditer(file)
for match in match_iter:
if match.group(1) == '@import':
# If another css url.
# Calculating the absolute URL of the CSS file.
import_url = str(helpers.unescape_html(get_absolute_import_url(match.group(3), url)))
# Checking the media type for the import, we're only caching screen CSS.
media_ok = True
media = match.group(5)
if len(media.strip()):
try:
media.index("screen")
except:
media_ok = False
if media_ok:
# Creating a request to fetch the linked CSS file.
request = GetCssRequest.objects.create(url=import_url, page=page)
# Replacing the original import statement with a new one, that points to our servers.
output.append(file[offset:match.start()])
output.append("@import url('%s');" % request.calculate_local_url())
else:
# Treating as if it were a regular file.
output.append(file[offset:match.start()])
output.append("%surl('%s')%s" % (match.group(2), import_url, match.group(4) or ''))
offset = match.end()
else:
# If a non-css url.
# Calculating the absolute URL of the file.
import_url = str(helpers.unescape_html(get_absolute_import_url(match.group(3), url)))
output.append(file[offset:match.start()])
output.append("%surl('%s')%s" % (match.group(2), import_url, match.group(4) or ''))
offset = match.end()
output.append(file[offset:len(file)])
return "".join(output)
def process_css_file_form_1_imports(page, file, url):
output = []
offset = 0
match_iter = IMPORT_FORM_1.finditer(file)
for match in match_iter:
# Calculating the absolute URL of the CSS file.
import_url = str(helpers.unescape_html(get_absolute_import_url(match.group(1), url)))
# Creating a request to fetch the linked CSS file.
request = GetCssRequest.objects.create(url=import_url, page=page)
# Replacing the original import statement with a new one, that points to our servers.
output.append(file[offset:match.start()])
output.append("@import url('%s');" % request.calculate_local_url())
offset = match.end()
output.append(file[offset:len(file)])
return "".join(output)
