def set_image_hashes(post: Post, hash_size: int = 16) -> Post:
log.debug('%s - Hashing image post %s', os.getpid(), post.post_id)
try:
img = generate_img_by_url(post.url)
except ImageConversioinException as e:
raise
try:
dhash_h = imagehash.dhash(img, hash_size=hash_size)
dhash_v = imagehash.dhash_vertical(img, hash_size=hash_size)
ahash = imagehash.average_hash(img, hash_size=hash_size)
post.dhash_h = str(dhash_h)
post.dhash_v = str(dhash_v)
post.ahash = str(ahash)
except Exception as e:
# TODO: Specific exception
log.exception('Error creating hash', exc_info=True)
raise
return post
def set_image_hashes_api(post: Post, api_url: str) -> Post:
"""
Call an external API to create image hashes.
This allows us to offload bandwidth to another server. In the current case, a Digital Ocean Load Balancer
:param post: Post to hash
:param api_url: API URL to call
:return: Dict of hashes
"""
log.debug('Hashing image post using api %s', post.post_id)
r = requests.get(api_url, params={'url': post.url})
if r.status_code != 200:
log.error('Back statuscode from DO API %s', r.status_code)
raise ImageConversioinException('Bad response from DO API')
hashes = json.loads(r.text)
log.debug(hashes)
post.dhash_h = hashes['dhash_h']
post.dhash_v = hashes['dhash_v']
post.ahash = hashes['ahash']
return post