27 feb 2012 kl. 21:07 skrev Daniel-Constantin Mierla: > Hello, > > an xpath invalid expression should be printed when the xpath expression is > incorrect -- I cannot say what is wrong, not being an xpath expert by hart. > > However, there is a mismatching between the xml standards and SIP/SIMPLE > specs. In XML, the namespaces are bound to prefixes, while the guys at IETF > added by their own so called default namespace, which has no prefix for it. > That results in not being able to use directly xpath from libxml2 with SIMPLE > bodies. > > There were some discussions out there (you can google, iirc Inaki was in > couple of them), in one side, the devs of libxml2 said they don't want to > break XML standards by allowing bogus xpath queries with such namespaces. The > workaround is to define xmlns prefix in xmlops module: > > http://kamailio.org/docs/modules/devel/modules/xmlops.html#xml_ns > > modparam("xmlops", "xml_ns", "ri=urn:ietf:params:xml:ns:reginfo") > > and try: > > $xml(pub=>xpath://ri:reginfo/ri:registration@aor)
Thanks! The weird part is that I after adding that modparam get this error message: loading modules under /usr/local/lib64/kamailio/modules_k/:/usr/local/lib64/kamailio/modules/ 0(65556) ERROR: <core> [modparam.c:162]: set_mod_param_regex: No module matching <xmlops> found 0(65556) : <core> [cfg.y:3504]: parse error in config file kam-modules.inc, line 86, column 65: Can't set module parameter This is on FreeBSD. If I raise the debug I see the module being loaded and that it registers PVs 0(63596) DEBUG: <core> [mem/q_malloc.c:369]: qm_malloc(0x800c00000, 40) called from xmlops: pv_xml.c: pv_parse_xml_name(448) Weird stuff. Kamailio 3.2.2 /O _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list [email protected] http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
