def purge(url=None):
akamai_config = settings.WAGTAILFRONTENDCACHE.get('akamai', {})
cloudfront_config = settings.WAGTAILFRONTENDCACHE.get('files', {})
if url:
# Use the Wagtail frontendcache PurgeBatch to perform the purge
batch = PurgeBatch()
batch.add_url(url)
# If the URL matches any of our CloudFront distributions, invalidate
# with that backend
if any(k for k in cloudfront_config.get('DISTRIBUTION_ID', {})
if k in url):
logger.info('Purging {} from "files" cache'.format(url))
batch.purge(backends=['files'])
# Otherwise invalidate with our default backend
else:
logger.info('Purging {} from "akamai" cache'.format(url))
batch.purge(backends=['akamai'])
return "Submitted invalidation for %s" % url
else:
# purge_all only exists on our AkamaiBackend
backend = AkamaiBackend(akamai_config)
logger.info('Purging entire site from "akamai" cache')
backend.purge_all()
return "Submitted invalidation for the entire site."
def section_saved(sender, instance, **kwargs):
if not instance.subpart.version.draft:
batch = PurgeBatch()
for page in instance.subpart.version.part.page.all():
urls = page.get_urls_for_version(instance.subpart.version,
section=instance)
batch.add_urls(urls)
batch.purge()
def effective_version_saved(sender, instance, **kwargs):
""" Invalidate the cache if the effective_version is not a draft """
if not instance.draft:
batch = PurgeBatch()
for page in instance.part.page.all():
urls = page.get_urls_for_version(instance)
batch.add_urls(urls)
batch.purge()
def cloudfront_cache_invalidation(sender, instance, **kwargs):
if not settings.ENABLE_CLOUDFRONT_CACHE_PURGE:
return
if not instance.file:
return
url = instance.file.url
logger.info('Purging {} from "files" cache'.format(url))
batch = PurgeBatch()
batch.add_url(url)
batch.purge(backends=['files'])
def cloudfront_cache_invalidation(sender, instance, **kwargs):
if not settings.ENABLE_CLOUDFRONT_CACHE_PURGE:
return
if not instance.file:
return
media_base = settings.MEDIA_URL
if hasattr(settings, 'AWS_S3_CUSTOM_DOMAIN'):
media_base = settings.AWS_S3_CUSTOM_DOMAIN
url = urljoin(media_base, instance.url)
logger.info("Invalidating cache for " + url)
batch = PurgeBatch()
batch.add_url(url)
batch.purge(backends=['files'])