Problem with uploading a file on azurite thought uploadlink with sas token

Question

I'm trying to test an upload file with azurite with my code

from datetime import datetime, timedelta
import requests
from azure.storage.blob import BlobSasPermissions, BlobServiceClient, generate_blob_sas

connect_str = "DefaultEndpointsProtocol=http;AccountName=myaccount;AccountKey=;BlobEndpoint=http://127.0.0.1:10000/devstoreaccount1;"
container_name = "files"
blob_name = "device.log"
account_key = "Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw=="


blob_service_client = BlobServiceClient.from_connection_string(connect_str)
blob_client = blob_service_client.get_blob_client(
    container=container_name, blob=blob_name
)

sas_token = generate_blob_sas(
    account_name="devstoreaccount1",
    account_key="Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw==",
    container_name=container_name,
    blob_name="myblob",
    permission=BlobSasPermissions(create=True),
    expiry=datetime.utcnow() + timedelta(hours=1),
)

upload_url = blob_client.url + "?" + sas_token
print(upload_url)

local_path = "/home/nixos/nimbus/airfriskcomm/data/log/device.log"

with open(local_path, "rb") as file:
    file_contents = file.read()

headers = {
    "x-ms-blob-type": "BlockBlob",
    "Content-Type": "application/octet-stream",
    "Content-Length": str(len(file_contents)),
}

response = requests.put(upload_url, data=file_contents, headers=headers)

print(response.status_code)

but I keep on getting the response status code 403. I guess there is some problem in sas token I'm generating.

Answer 1

When I ran your code by modifying few things like connection string, local path to repro the issue, i got the below error. error message:

PS C:\Users\vijay\Documents\testdir03>  c:; cd 'c:\Users\vijay\Documents\testdir03'; & 'C:\Users\vijay\AppData\Local\Programs\Python\Python311\python.exe' 'c:\Users\vijay\.vscode\extensions\ms-python.python-2023.4.1\pythonFiles\lib\python\debugpy\adapter/../..\debugpy\launcher' '62488' '--' 'C:\Users\vijay\Documents\testdir03\test.py'
http://127.0.0.1:10000/devstoreaccount1/files/device.log?se=2023-03-17T13%3A53%3A23Z&sp=c&sv=2021-12-02&sr=b&sig=u1QWm%2BiSsy%2BtN55eqm67NQtUw9rxMHghWR0KmYRO5YA%3D
403

After I change the blob_name value at line 20, I got the success output.

from datetime import datetime, timedelta
import requests
from azure.storage.blob import BlobSasPermissions, BlobServiceClient, generate_blob_sas

connect_str = "DefaultEndpointsProtocol=http;AccountName=devstoreaccount1;AccountKey=Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw==;BlobEndpoint=http://127.0.0.1:10000/devstoreaccount1;"
container_name = "files"
blob_name = "device.log"
account_key = "Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw=="


blob_service_client = BlobServiceClient.from_connection_string(connect_str)
blob_client = blob_service_client.get_blob_client(
    container=container_name, blob=blob_name
)

sas_token = generate_blob_sas(
    account_name="devstoreaccount1",
    account_key="Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw==",
    container_name=container_name,
    blob_name=blob_name,
    permission=BlobSasPermissions(create=True),
    expiry=datetime.utcnow() + timedelta(hours=1),
)

upload_url = blob_client.url + "?" + sas_token
print(upload_url)

local_path = "device.log"

with open(local_path, "rb") as file:
    file_contents = file.read()

headers = {
    "x-ms-blob-type": "BlockBlob",
    "Content-Type": "application/octet-stream",
    "Content-Length": str(len(file_contents)),
}

response = requests.put(upload_url, data=file_contents, headers=headers)

print(response.status_code)

Refer to this Python sample code to upload the blob to Azurite by using the SAS token | Github.com for more information.