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import logging
import os
import time
from io import BytesIO
from rag import settings
from rag.utils import singleton
from azure.storage.blob import ContainerClient
@singleton
class RAGFlowAzureSasBlob(object):
def __init__(self):
self.conn = None
self.container_url = os.getenv('CONTAINER_URL', settings.AZURE["container_url"])
self.sas_token = os.getenv('SAS_TOKEN', settings.AZURE["sas_token"])
self.__open__()
def __open__(self):
try:
if self.conn:
self.__close__()
except Exception:
pass
try:
self.conn = ContainerClient.from_container_url(self.container_url + "?" + self.sas_token)
except Exception:
logging.exception("Fail to connect %s " % self.container_url)
def __close__(self):
del self.conn
self.conn = None
def health(self):
bucket, fnm, binary = "txtxtxtxt1", "txtxtxtxt1", b"_t@@@1"
return self.conn.upload_blob(name=fnm, data=BytesIO(binary), length=len(binary))
def put(self, bucket, fnm, binary):
for _ in range(3):
try:
return self.conn.upload_blob(name=fnm, data=BytesIO(binary), length=len(binary))
except Exception:
logging.exception(f"Fail put {bucket}/{fnm}")
self.__open__()
time.sleep(1)
def rm(self, bucket, fnm):
try:
self.conn.delete_blob(fnm)
except Exception:
logging.exception(f"Fail rm {bucket}/{fnm}")
def get(self, bucket, fnm):
for _ in range(1):
try:
r = self.conn.download_blob(fnm)
return r.read()
except Exception:
logging.exception(f"fail get {bucket}/{fnm}")
self.__open__()
time.sleep(1)
return
def obj_exist(self, bucket, fnm):
try:
return self.conn.get_blob_client(fnm).exists()
except Exception:
logging.exception(f"Fail put {bucket}/{fnm}")
return False
def get_presigned_url(self, bucket, fnm, expires):
for _ in range(10):
try:
return self.conn.get_presigned_url("GET", bucket, fnm, expires)
except Exception:
logging.exception(f"fail get {bucket}/{fnm}")
self.__open__()
time.sleep(1)
return
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