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# Copyright (C) 2013 Red Hat, Inc. |
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# |
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# This copyrighted material is made available to anyone wishing to use, |
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# modify, copy, or redistribute it subject to the terms and conditions of |
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# the GNU General Public License v.2, or (at your option) any later version. |
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# This program is distributed in the hope that it will be useful, but WITHOUT |
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# ANY WARRANTY expressed or implied, including the implied warranties of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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# Public License for more details. You should have received a copy of the |
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# GNU General Public License along with this program; if not, write to the |
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# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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# 02110-1301, USA. Any Red Hat trademarks that are incorporated in the |
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# source code or documentation are not subject to the GNU General Public |
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# License and may only be used or replicated with the express permission of |
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# Red Hat, Inc. |
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# |
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# Red Hat Author(s): Vratislav Podzimek <[email protected]> |
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# |
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""" |
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Module with various classes for SCAP content processing and retrieving data |
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from it. |
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""" |
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import os.path |
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from collections import namedtuple |
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from pyanaconda.core.util import execReadlines |
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try: |
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from html.parser import HTMLParser |
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except ImportError: |
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from HTMLParser import HTMLParser |
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import logging |
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log = logging.getLogger("anaconda") |
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class ParseHTMLContent(HTMLParser): |
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"""Parser class for HTML tags within content""" |
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def __init__(self): |
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HTMLParser.__init__(self) |
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self.content = "" |
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def handle_starttag(self, tag, attrs): |
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if tag == "html:ul": |
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self.content += "\n" |
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elif tag == "html:li": |
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self.content += "\n" |
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elif tag == "html:br": |
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self.content += "\n" |
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def handle_endtag(self, tag): |
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if tag == "html:ul": |
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self.content += "\n" |
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elif tag == "html:li": |
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self.content += "\n" |
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def handle_data(self, data): |
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self.content += data.strip() |
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def get_content(self): |
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return self.content |
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def parse_HTML_from_content(content): |
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"""This is a very simple HTML to text parser. |
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HTML tags will be removed while trying to maintain readability |
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of content. |
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:param content: content whose HTML tags will be parsed |
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:return: content without HTML tags |
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""" |
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parser = ParseHTMLContent() |
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parser.feed(content) |
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return parser.get_content() |
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# namedtuple class for info about content files found |
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# pylint: disable-msg=C0103 |
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ContentFiles = namedtuple("ContentFiles", ["xccdf", "cpe", "tailoring"]) |
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def explore_content_files(fpaths): |
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""" |
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Function for finding content files in a list of file paths. SIMPLY PICKS |
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THE FIRST USABLE CONTENT FILE OF A PARTICULAR TYPE AND JUST PREFERS DATA |
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STREAMS OVER STANDALONE BENCHMARKS. |
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:param fpaths: a list of file paths to search for content files in |
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:type fpaths: [str] |
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:return: ContentFiles instance containing the file names of the XCCDF file, |
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CPE dictionary and tailoring file or "" in place of those items |
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if not found |
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:rtype: ContentFiles |
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""" |
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def get_doc_type(file_path): |
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content_type = "unknown" |
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try: |
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for line in execReadlines("oscap", ["info", file_path]): |
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if line.startswith("Document type:"): |
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_prefix, _sep, type_info = line.partition(":") |
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content_type = type_info.strip() |
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break |
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except OSError: |
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# 'oscap info' exitted with a non-zero exit code -> unknown doc |
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# type |
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pass |
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log.info("OSCAP addon: Identified {file_path} as {content_type}" |
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.format(file_path=file_path, content_type=content_type)) |
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return content_type |
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xccdf_file = "" |
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cpe_file = "" |
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tailoring_file = "" |
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found_ds = False |
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for fpath in fpaths: |
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doc_type = get_doc_type(fpath) |
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if not doc_type: |
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continue |
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# prefer DS over standalone XCCDF |
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if doc_type == "Source Data Stream" and (not xccdf_file or not found_ds): |
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xccdf_file = fpath |
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found_ds = True |
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elif doc_type == "XCCDF Checklist" and not xccdf_file: |
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xccdf_file = fpath |
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elif doc_type == "CPE Dictionary" and not cpe_file: |
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cpe_file = fpath |
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elif doc_type == "XCCDF Tailoring" and not tailoring_file: |
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tailoring_file = fpath |
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# TODO: raise exception if no xccdf_file is found? |
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files = ContentFiles(xccdf_file, cpe_file, tailoring_file) |
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return files |
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OpenSCAP /
oscap-anaconda-addon
