browsertrix/backend/btrixcloud/storages.py
Tessa Walsh bd4fba7af7
Fix POST /orgs/{oid}/crawls/delete (#591)
* Fix POST /orgs/{oid}/crawls/delete

- Add permissions check to ensure crawler users can only delete
their own crawls
- Fix broken delete_crawls endpoint
- Delete files from storage as well as deleting crawl from db
- Add tests, including nightly test that ensures crawl files are
no longer accessible after the crawl is deleted
2023-02-15 21:06:12 -05:00

151 lines
4.7 KiB
Python

"""
Storage API
"""
from typing import Union
from urllib.parse import urlsplit
from contextlib import asynccontextmanager
from fastapi import Depends, HTTPException
from aiobotocore.session import get_session
from .orgs import Organization, DefaultStorage, S3Storage
from .users import User
# ============================================================================
def init_storages_api(org_ops, crawl_manager, user_dep):
"""API for updating storage for an org"""
router = org_ops.router
org_owner_dep = org_ops.org_owner_dep
# pylint: disable=bare-except, raise-missing-from
@router.patch("/storage", tags=["organizations"])
async def update_storage(
storage: Union[S3Storage, DefaultStorage],
org: Organization = Depends(org_owner_dep),
user: User = Depends(user_dep),
):
if storage.type == "default":
try:
await crawl_manager.check_storage(storage.name, is_default=True)
except:
raise HTTPException(
status_code=400, detail=f"Invalid default storage {storage.name}"
)
else:
try:
await verify_storage_upload(storage, ".btrix-upload-verify")
except:
raise HTTPException(
status_code=400,
detail="Could not verify custom storage. Check credentials are valid?",
)
await org_ops.update_storage(org, storage)
await crawl_manager.update_org_storage(org.id, str(user.id), org.storage)
return {"updated": True}
# ============================================================================
@asynccontextmanager
async def get_s3_client(storage, use_access=False):
"""context manager for s3 client"""
endpoint_url = (
storage.endpoint_url if not use_access else storage.access_endpoint_url
)
if not endpoint_url.endswith("/"):
endpoint_url += "/"
parts = urlsplit(endpoint_url)
bucket, key = parts.path[1:].split("/", 1)
endpoint_url = parts.scheme + "://" + parts.netloc
session = get_session()
async with session.create_client(
"s3",
region_name=storage.region,
endpoint_url=endpoint_url,
aws_access_key_id=storage.access_key,
aws_secret_access_key=storage.secret_key,
) as client:
yield client, bucket, key
# ============================================================================
async def verify_storage_upload(storage, filename):
"""Test credentials and storage endpoint by uploading an empty test file"""
async with get_s3_client(storage) as (client, bucket, key):
key += filename
data = b""
resp = await client.put_object(Bucket=bucket, Key=key, Body=data)
assert resp["ResponseMetadata"]["HTTPStatusCode"] == 200
# ============================================================================
async def get_presigned_url(org, crawlfile, crawl_manager, duration=3600):
"""generate pre-signed url for crawl file"""
if crawlfile.def_storage_name:
s3storage = await crawl_manager.get_default_storage(crawlfile.def_storage_name)
elif org.storage.type == "s3":
s3storage = org.storage
else:
raise TypeError("No Default Storage Found, Invalid Storage Type")
async with get_s3_client(s3storage, s3storage.use_access_for_presign) as (
client,
bucket,
key,
):
key += crawlfile.filename
presigned_url = await client.generate_presigned_url(
"get_object", Params={"Bucket": bucket, "Key": key}, ExpiresIn=duration
)
if (
not s3storage.use_access_for_presign
and s3storage.access_endpoint_url
and s3storage.access_endpoint_url != s3storage.endpoint_url
):
presigned_url = presigned_url.replace(
s3storage.endpoint_url, s3storage.access_endpoint_url
)
return presigned_url
# ============================================================================
async def delete_crawl_file_object(org, crawlfile, crawl_manager):
"""delete crawl file from storage."""
status_code = None
if crawlfile.def_storage_name:
s3storage = await crawl_manager.get_default_storage(crawlfile.def_storage_name)
elif org.storage.type == "s3":
s3storage = org.storage
else:
raise TypeError("No Default Storage Found, Invalid Storage Type")
async with get_s3_client(s3storage, s3storage.use_access_for_presign) as (
client,
bucket,
key,
):
key += crawlfile.filename
response = await client.delete_object(Bucket=bucket, Key=key)
status_code = response["ResponseMetadata"]["HTTPStatusCode"]
return status_code