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# $Id$
"""
Command line IR back-end control program.
The query back-channel is handled by a separate program.
"""
import getopt, sys, lxml.etree, lxml.sax
import rpki.left_right, rpki.relaxng, rpki.cms, rpki.https, rpki.x509, rpki.config
class cmd_mixin(object):
"""Left-right protocol mix-in for command line client."""
def client_getopt(self, argv):
"""Parse options for this class."""
opts, args = getopt.getopt(argv, "", [x + "=" for x in self.attributes + self.elements] + list(self.booleans))
for o, a in opts:
o = o[2:]
handler = getattr(self, "client_query_" + o, None)
if handler is not None:
handler(a)
elif o in self.booleans:
setattr(self, o, True)
else:
assert o in self.attributes
setattr(self, o, a)
return args
def client_query_action(self, arg):
"""Special handler for --action option."""
self.action = arg
self.type = "query"
def client_query_peer_ta(self, arg):
"""Special handler for --peer_ta option."""
self.peer_ta = rpki.x509.X509(Auto_file=arg)
def client_reply_decode(self):
pass
def client_reply_show(self):
self.client_reply_decode()
print self.element_name
for i in self.attributes + self.elements:
if getattr(self, i) is not None:
print " %s: %s" % (i, getattr(self, i))
class self_elt(cmd_mixin, rpki.left_right.self_elt):
def client_query_extension_preference(self, arg):
"""--extension_preferences option."""
k,v = arg.split("=", 1)
pref = rpki.left_right.extension_preference_elt()
pref.name = k
pref.value = v
self.prefs.append(pref)
class bsc_elt(cmd_mixin, rpki.left_right.bsc_elt):
def client_query_signing_cert(self, arg):
"""--signing_cert option."""
self.signing_cert.append(rpki.x509.X509(Auto_file=arg))
class parent_elt(cmd_mixin, rpki.left_right.parent_elt):
pass
class child_elt(cmd_mixin, rpki.left_right.child_elt):
pass
class repository_elt(cmd_mixin, rpki.left_right.repository_elt):
pass
class route_origin_elt(cmd_mixin, rpki.left_right.route_origin_elt):
def client_query_as_number(self, arg):
"""Handle autonomous sequence numbers."""
self.as_number = long(arg)
def client_query_ipv4(self, arg):
"""Handle IPv4 addresses."""
self.ipv4 = resource_set.resource_set_ipv4(arg)
def client_query_ipv6(self, arg):
"""Handle IPv6 addresses."""
self.ipv6 = resource_set.resource_set_ipv6(arg)
class msg(rpki.left_right.msg):
pdus = dict((x.element_name, x)
for x in (self_elt, bsc_elt, parent_elt, child_elt, repository_elt, route_origin_elt))
class sax_handler(rpki.left_right.sax_handler):
pdu = msg
def usage():
print "Usage:", sys.argv[0]
for k,v in msg.pdus.items():
print " ", k, \
" ".join(["--" + x + "=" for x in v.attributes + v.elements]), \
" ".join(["--" + x for x in v.booleans])
sys.exit(1)
def main():
"""Main program.
Work in progress. At the moment it gets as far as transmitting the
generated request, but doesn't yet do anything with responses.
"""
cfg = rpki.config.parser("irbe.conf")
section = "irbe-cli"
privateKey = rpki.x509.RSA_Keypair(PEM_file = cfg.get(section, "https-key"))
certChain = rpki.x509.X509_chain()
certChain.load_from_PEM(cfg.multiget(section, "https-cert"))
x509TrustList = rpki.x509.X509_chain()
x509TrustList.load_from_PEM(cfg.multiget(section, "https-ta"))
q_msg = rpki.left_right.msg()
argv = sys.argv[1:]
if not argv:
usage()
while argv:
try:
q_pdu = msg.pdus[argv[0]]()
except KeyError:
usage()
argv = q_pdu.client_getopt(argv[1:])
q_msg.append(q_pdu)
q_elt = q_msg.toXML()
q_xml = lxml.etree.tostring(q_elt, pretty_print=True, encoding="us-ascii", xml_declaration=True)
try:
rpki.relaxng.left_right.assertValid(q_elt)
except lxml.etree.DocumentInvalid:
print "Generated request document doesn't pass schema check:"
print q_xml
sys.exit(1)
print "Sending:"
print q_xml
q_cms = rpki.cms.encode(q_xml, cfg.get(section, "cms-key"), cfg.multiget(section, "cms-cert"))
r_cms = rpki.https.client(privateKey=privateKey, certChain=certChain, x509TrustList=x509TrustList,
msg=q_cms, url="/left-right")
r_xml = rpki.cms.decode(r_cms, cfg.get(section, "cms-ta"))
r_elt = lxml.etree.fromstring(r_xml)
try:
rpki.relaxng.left_right.assertValid(r_elt)
except lxml.etree.DocumentInvalid:
print "Received reply document doesn't pass schema check:"
print r_xml
sys.exit(1)
print "Received:"
print r_xml
handler = sax_handler()
lxml.sax.saxify(r_elt, handler)
r_msg = handler.result
# Can't enable this until our reply handler methods are merged into rpki.left_right.
if True:
for r_pdu in r_msg:
r_pdu.client_reply_show()
if __name__ == "__main__": main()
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