mirror of https://github.com/zulip/zulip.git
50 lines
1.7 KiB
Python
50 lines
1.7 KiB
Python
# See https://zulip.readthedocs.io/en/latest/subsystems/thumbnailing.html
|
|
|
|
import base64
|
|
import logging
|
|
import urllib.parse
|
|
|
|
from tc_aws.loaders import s3_loader
|
|
from thumbor.context import Context
|
|
from thumbor.loaders import LoaderResult, file_loader, https_loader
|
|
|
|
from .helpers import (
|
|
THUMBOR_EXTERNAL_TYPE,
|
|
THUMBOR_LOCAL_FILE_TYPE,
|
|
THUMBOR_S3_TYPE,
|
|
separate_url_and_source_type,
|
|
)
|
|
|
|
|
|
def get_not_found_result() -> LoaderResult:
|
|
result = LoaderResult()
|
|
result.error = LoaderResult.ERROR_NOT_FOUND
|
|
result.successful = False
|
|
return result
|
|
|
|
async def load(context: Context, url: str) -> LoaderResult:
|
|
source_type, encoded_url = separate_url_and_source_type(url)
|
|
actual_url = base64.urlsafe_b64decode(urllib.parse.unquote(encoded_url)).decode('utf-8')
|
|
|
|
if source_type == THUMBOR_S3_TYPE:
|
|
if actual_url.startswith('/user_uploads/'):
|
|
actual_url = actual_url[len('/user_uploads/'):]
|
|
else:
|
|
raise AssertionError("Unexpected s3 file.")
|
|
|
|
return await s3_loader.load(context, actual_url)
|
|
elif source_type == THUMBOR_LOCAL_FILE_TYPE:
|
|
if actual_url.startswith('/user_uploads/'):
|
|
actual_url = actual_url[len('/user_uploads/'):]
|
|
local_file_path_prefix = 'files/'
|
|
else:
|
|
raise AssertionError("Unexpected local file.")
|
|
|
|
patched_local_url = local_file_path_prefix + actual_url
|
|
return await file_loader.load(context, patched_local_url)
|
|
elif source_type == THUMBOR_EXTERNAL_TYPE:
|
|
return await https_loader.load(context, actual_url)
|
|
else:
|
|
logging.warning('INVALID SOURCE TYPE: ' + source_type)
|
|
return get_not_found_result()
|