[jira] [Created] (AIRFLOW-1914) email utils in airflow in airflow does not support multibyte string content

["edward (JIRA)" <ji...@apache.org>]

edward created AIRFLOW-1914:
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             Summary: email utils in airflow in airflow does not support multibyte string content
                 Key: AIRFLOW-1914
                 URL: https://issues.apache.org/jira/browse/AIRFLOW-1914
             Project: Apache Airflow
          Issue Type: Bug
          Components: operators
    Affects Versions: Airflow 2.0
            Reporter: edward


The built-in email utils does not support multibyte string content, for example, Japanese.

issue in file: https://github.com/apache/incubator-airflow/blob/master/airflow/utils/email.py#L73

>>> mime_text = MIMEText(html_content, 'html')
The charset is not passed in and the default charset is "us-ascii"

The fix is to pass in the right charset base on html_context:
>>> mime_text = MIMEText(html_content, 'html’, “us-ascii" if isinstance(html_content, str) else "utf-8”)




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