def watermark(url):
if not settings.SITE_ID == 1:
return url
image_url = url.split("?")[0]
filename = "{0}.{1}".format(image_url, settings.DEFAULT_WATERMARK_SLUG)
if not filename.startswith(settings.S3_BUCKET_URL):
return filename
cache_key = "watermark-%s" % filename
cache_key = cache_key.strip()
cached_val = cache.get(cache_key)
if cached_val:
return cached_val
storage = get_upload_storage(delayed=True).remote
new_url = storage.url(filename.replace(settings.S3_BUCKET_URL, ""))
cache.set(cache_key, new_url, settings.WATERMARK_URL_CACHE_TIME)
return new_url
def generate_url(self, thumb_name, ssl_mode=False):
# This is tacked on to the end of the cache key to make sure SSL
# URLs are stored separate from plain http.
ssl_postfix = '_ssl' if ssl_mode else ''
# Try to see if we can hit the cache instead of asking the storage
# backend for the URL. This is particularly important for S3 backends.
cache_key = "Thumbcache_%s_%s%s" % (self.url,
thumb_name,
ssl_postfix)
cache_key = cache_key.strip()
cached_val = cache.get(cache_key)
if cached_val:
return cached_val
# Determine what the filename would be for a thumb with these
# dimensions, regardless of whether it actually exists.
new_filename = self._calc_thumb_filename(thumb_name)
# Split URL from GET attribs.
url_get_split = self.url.rsplit('?', 1)
# Just the URL string (no GET attribs).
url_str = url_get_split[0]
# Get the URL string without the original's filename at the end.
url_minus_filename = url_str.rsplit('/', 1)[0]
# Slap the new thumbnail filename on the end of the old URL, in place
# of the orignal image's filename.
new_url = "%s/%s" % (url_minus_filename,
os.path.basename(new_filename))
if new_url.startswith(settings.S3_BUCKET_URL):
storage = get_upload_storage(delayed=True).remote
new_url = storage.url(new_url.replace(settings.S3_BUCKET_URL, ""))
# Cache this so we don't have to hit the storage backend for a while.
cache.set(cache_key, new_url, THUMBNAIL_URL_CACHE_TIME)
return new_url
