r23598 - gnucash/trunk/src/backend/xml - Bug 710824 - GnuCash should sanitise UTF-8 before serialising files

[John Ralls]

Author: jralls
Date: 2013-12-22 17:32:04 -0500 (Sun, 22 Dec 2013)
New Revision: 23598
Trac: http://svn.gnucash.org/trac/changeset/23598

Added:
   gnucash/trunk/src/backend/xml/gnc-xml-helper.c
Modified:
   gnucash/trunk/src/backend/xml/Makefile.am
   gnucash/trunk/src/backend/xml/gnc-recurrence-xml-v2.c
   gnucash/trunk/src/backend/xml/gnc-schedxaction-xml-v2.c
   gnucash/trunk/src/backend/xml/gnc-transaction-xml-v2.c
   gnucash/trunk/src/backend/xml/gnc-xml-helper.h
   gnucash/trunk/src/backend/xml/io-gncxml-v2.c
   gnucash/trunk/src/backend/xml/sixtp-dom-generators.c
   gnucash/trunk/src/backend/xml/sixtp-to-dom-parser.c
   gnucash/trunk/src/backend/xml/test/Makefile.am
   gnucash/trunk/src/backend/xml/test/test-string-converters.c
Log:
Bug 710824 - GnuCash should sanitise UTF-8 before serialising files

to avoid writing broken unparseable XML.
This checks for both bad UTF8 and for invalid control characters
that libxml2 doesn't convert to entities.