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fixes #1213254 by filtering out invalid xml chars

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Philip Ridout 2013-08-17 08:37:36 +01:00
parent bb5aacfb6a
commit d492c2fecd
1 changed files with 21 additions and 0 deletions
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21
openlp/plugins/songs/lib/xml.py
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@ -92,6 +92,27 @@ class SongXML(object):
self.song_xml = objectify.fromstring(u'<song version="1.0" />')
self.lyrics = etree.SubElement(self.song_xml, u'lyrics')
@staticmethod
def valid_xml_char_ordinal(char):
"""
Control Characters we need to filter from the xml.
Source <http://stackoverflow.com/questions/8733233/filtering-out-certain-bytes-in-python>
"""
return (
0x20 <= char <= 0xD7FF
or char in (0x9, 0xA, 0xD)
or 0xE000 <= char <= 0xFFFD
or 0x10000 <= char <= 0x10FFFF
)
@staticmethod
def clean_xml_string(xml):
"""
Filter out invalid characters in xml
Source <http://stackoverflow.com/questions/8733233/filtering-out-certain-bytes-in-python>
"""
return ''.join(char for char in xml if SongXML.valid_xml_char_ordinal(ord(char)))
def add_verse_to_lyrics(self, type, number, content, lang=None):
"""
Add a verse to the ``<lyrics>`` tag.