[GitHub] [airflow] wolfier commented on issue #15136: curl REST authentication fails if variable value hidden from the UI

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wolfier commented on issue #15136:
URL: https://github.com/apache/airflow/issues/15136#issuecomment-812218246


   Based on #8421, the render template view is not be capable of hiding 
sensitive information. 
   
   Quoting @kaxil,
   
   > Yes the Rendered UI Field currently exposes everything. We should have a 
way of hiding this.
   
   I was unable to replicate what you had by following your instructions. The 
hidden sensitive value when the name of the Variable contains special keywords 
still renders as its original value.
   
   I think you may have saved the Airflow Variable while the value was shown as 
the replaced value in the Airflow Variables view thereby saving the the actual 
value as "********". That was the only way I am able to replicate what you had.
   
   1. Create Airflow Variable in UI, my_value_secret.
   ![Screen Shot 2021-04-01 at 3 35 42 
PM](https://user-images.githubusercontent.com/5952735/113361210-49a89480-9300-11eb-9d5c-37c3bee0ca26.png)
   2. Save my_value_secret with no changes made.
   ![Screen Shot 2021-04-01 at 3 43 48 
PM](https://user-images.githubusercontent.com/5952735/113361532-1adeee00-9301-11eb-8502-700cc0af2ab9.png)
   3. Create Airflow Variable in UI, my_value
   ![Screen Shot 2021-04-01 at 3 46 46 
PM](https://user-images.githubusercontent.com/5952735/113361748-7c06c180-9301-11eb-8a2b-ddc57893c739.png)
   4. my_value_secret Variable is rendered as "********" while my_value 
Variable is rendered as "wow"
   ![Screen Shot 2021-04-01 at 3 46 17 
PM](https://user-images.githubusercontent.com/5952735/113361780-8f199180-9301-11eb-8946-2a0d4bd48e26.png)
   
   ```python
   from airflow.models import DAG
   from datetime import datetime
   from airflow.models import Variable
   from airflow.operators.bash import BashOperator
   
   dag = DAG(
       dag_id="trigger_dag",
       start_date=datetime(2021, 3, 10),
       catchup=False,
       schedule_interval='@once',
   )
   
   with dag:
       put_task = BashOperator(
           task_id='put_task',
           bash_command=
           '{{ var.value.my_value }} | '
           '{{ var.value.my_value_secret }} | '
           ,
           env={
               'password': Variable.get(f"my_value"),
               'password2': Variable.get(f"my_value_secret"),
           }
       )
   ```
   
   Can you verify that your scenario is reproducible on your end? Also if you 
are able to reproduce the issue, can you print out the secret value in a 
PythonOperator to see its true value?
   
   


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