[elbe-devel] [PATCH] Add file size > 1 GiB check

[Manuel Traut]

On 16:47 Tue 12 Mar     , bage at linutronix.de wrote:
> From: Bastian Germann <bage at linutronix.de>
> 
> Elbe's XML processing uses lxml which has a file size limit of 1.2 GiB.
> Add a check for the XML file's size not being greater than 1 GiB.
> 
> Closes issue #184.
> 
> Signed-off-by: Bastian Germann <bage at linutronix.de>
Reviewed-by: Manuel Traut <manut at linutronix.de>

> ---
>  elbepack/validate.py | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/elbepack/validate.py b/elbepack/validate.py
> index d03dd7ef..209823d0 100644
> --- a/elbepack/validate.py
> +++ b/elbepack/validate.py
> @@ -5,6 +5,7 @@
>  #
>  # SPDX-License-Identifier: GPL-3.0-or-later
>  
> +import os
>  import sys
>  
>  from lxml import etree
> @@ -12,6 +13,10 @@ from lxml.etree import XMLParser, parse
>  
>  
>  def validate_xml(fname):
> +    if os.path.getsize(fname) > 1<<30:
> +        return ["%s is greater than 1 GiB. "
> +                "Elbe does not support files of this size." % fname]
> +
>      schema_file = "https://www.linutronix.de/projects/Elbe/dbsfed.xsd"
>      parser = XMLParser(huge_tree=True)
>      schema_tree = etree.parse(schema_file)
> -- 
> 2.11.0
> 
> 
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