Source code for insights.parsers.imagemagick_policy

"""
ImageMagickPolicy - files ``/etc/ImageMagick/policy.xml`` and ``/usr/lib*/ImageMagick-6.5.4/config/policy.xml``
===============================================================================================================
"""

from insights.core import XMLParser
from insights.core.plugins import parser
from insights.parsers import SkipException
from insights.specs import Specs


[docs]@parser(Specs.imagemagick_policy) class ImageMagickPolicy(XMLParser): """ Class for parsing the ``/etc/ImageMagick/policy.xml`` and ``/usr/lib*/ImageMagick-6.5.4/config/policy.xml`` files. Attributes: policies (list): list of Element objects with a 'policy' tag Raises: SkipException: When content is empty or cannot be parsed. Sample output of this file is:: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE policymap [ <!ELEMENT policymap (policy)+> <!ATTLIST policymap xmlns CDATA #FIXED ''> <!ELEMENT policy EMPTY> <!ATTLIST policy xmlns CDATA #FIXED '' domain NMTOKEN #REQUIRED name NMTOKEN #IMPLIED pattern CDATA #IMPLIED rights NMTOKEN #IMPLIED stealth NMTOKEN #IMPLIED value CDATA #IMPLIED> ]> <!-- Configure ImageMagick policies. ... --> <policymap> <!-- <policy domain="system" name="shred" value="2"/> --> <!-- <policy domain="system" name="precision" value="6"/> --> <!-- <policy domain="system" name="memory-map" value="anonymous"/> --> <policy domain="coder" rights="none" pattern="EPHEMERAL"/> <policy domain="coder" rights="none" pattern="HTTPS"/> <policy domain="coder" rights="none" pattern="HTTP"/> <policy domain="coder" rights="none" pattern="URL"/> <policy domain="coder" rights="none" pattern="FTP"/> <policy domain="coder" rights="none" pattern="MVG"/> <policy domain="coder" rights="none" pattern="MSL"/> <policy domain="coder" rights="none" pattern="TEXT" /> <policy domain="coder" rights="none" pattern="LABEL"/> <policy domain="path" rights="none" pattern="@*"/> </policymap> Examples: >>> type(imagemagick_policy) <class 'insights.parsers.imagemagick_policy.ImageMagickPolicy'> >>> len(imagemagick_policy.policies) 10 >>> sorted(imagemagick_policy.policies[0].items()) [('domain', 'coder'), ('pattern', 'EPHEMERAL'), ('rights', 'none')] """
[docs] def parse_content(self, content): if not content: raise SkipException("No content.") try: super(ImageMagickPolicy, self).parse_content(content) self.policies = self.get_elements(".//policy") except Exception: # file without elements self.policies = []