serverapp.py 文件源码

def file_upload():
    """
    POST /file
    Uploads the file to the server.
    """
    try:
        mimetype = request.form["mimetype"]
    except KeyError:
        return JsonResponse({"error": "no mimetype"}, 400)
    try:
        file = request.files["file"]
    except KeyError:
        return JsonResponse({"error": "no file"}, 400)
    filename = werkzeug.utils.secure_filename(file.filename)
    with tempfile.NamedTemporaryFile(
            dir=app.config['MEDIA_DIR'], delete=False) as tf:
        file.save(tf)
    file_record = models.File(
        title=filename,
        mimetype=mimetype,
        path=tf.name
    )
    with start_session() as session:
        session.add(file_record)
        session.commit()
        file_id = file_record.id
    return JsonResponse({
        "id": file_id,
        "signedId":
            signer.sign(itsdangerous.want_bytes(file_id)).decode('utf-8'),
        "title": filename,
        "mimetype": mimetype
    }, status=203)