1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
|
# $Id$
import base64
import xml.sax
import glob
class rpki_updown_msg(object):
def toXML(self):
return ('\
<?xml version="1.0" encoding="UTF-8"?>\n\
<message xmlns="http://www.apnic.net/specs/rescerts/up-down/"\n\
version="1"\n\
sender="%s"\n\
recipient="%s"\n\
msg_ref="%d"\n\
type="%s">\n' \
% (self.sender, self.recipient, self.msg_ref, self.type)
) + self.innerToXML() + '</message>\n'
def innerToXML(self):
return ""
def startElement(self, name, attrs): pass
def endElement(self, name, text): pass
class rpki_updown_cert(object):
def __init__(self, attrs):
self.cert_url = attrs.getValue('cert_url')
self.cert_ski = attrs.getValue('cert_ski')
self.cert_aki = attrs.getValue('cert_aki')
self.cert_serial = attrs.getValue('cert_serial')
self.resource_set_as = attrs.getValue('resource_set_as')
self.resource_set_ipv4 = attrs.getValue('resource_set_ipv4')
self.resource_set_ipv6 = attrs.getValue('resource_set_ipv6')
try:
self.req_resource_set_as = attrs.getValue('req_resource_set_as')
except KeyError:
self.req_resource_set_as = None
try:
self.req_resource_set_ipv4 = attrs.getValue('req_resource_set_ipv4')
except KeyError:
self.req_resource_set_ipv4 = None
try:
self.req_resource_set_ipv6 = attrs.getValue('req_resource_set_ipv6')
except KeyError:
self.req_resource_set_ipv6 = None
self.status = attrs.getValue('status')
def toXML(self):
xml = ('\
<certificate cert_url="%s"\n\
cert_ski="%s"\n\
cert_aki="%s"\n\
cert_serial="%s"\n\
resource_set_as="%s"\n\
resource_set_ipv4="%s"\n\
resource_set_ipv6="%s"\n' \
% (self.cert_url, self.cert_ski, self.cert_aki, self.cert_serial,
self.resource_set_as, self.resource_set_ipv4, self.resource_set_ipv6))
if self.req_resource_set_as != None:
xml += (' req_resource_set_as="%s"\n' % self.req_resource_set_as)
if self.req_resource_set_ipv4 != None:
xml += (' req_resource_set_ipv4="%s"\n' % self.req_resource_set_ipv4)
if self.req_resource_set_ipv6 != None:
xml += (' req_resource_set_ipv6="%s"\n' % self.req_resource_set_ipv6)
xml += (' status="%s">\n' % self.status)
return xml + base64.b64encode(self.cert) + '</certificate>\n'
class rpki_updown_class(object):
def __init__(self, attrs):
self.class_name = attrs.getValue('class_name')
self.cert_url = attrs.getValue('cert_url')
self.cert_ski = attrs.getValue('cert_ski')
self.resource_set_as = attrs.getValue('resource_set_as')
self.resource_set_ipv4 = attrs.getValue('resource_set_ipv4')
self.resource_set_ipv6 = attrs.getValue('resource_set_ipv6')
try:
self.suggested_sia_head = attrs.getValue('suggested_sia_head')
except KeyError:
self.suggested_sia_head = None
self.certs = []
def toXML(self):
xml = ('\
<class class_name="%s"\n\
cert_url="%s"\n\
cert_ski="%s"\n\
resource_set_as="%s"\n\
resource_set_ipv4="%s"\n\
resource_set_ipv6="%s"' \
% (self.class_name, self.cert_url, self.cert_ski,
self.resource_set_as, self.resource_set_ipv4, self.resource_set_ipv6))
if self.suggested_sia_head != None:
xml += ('\n suggested_sia_head="%s"' % (self.suggested_sia_head))
xml += '>\n'
for cert in self.certs:
xml += cert.toXML()
return xml + '<issuer>' + base64.b64encode(self.issuer) + '</issuer>\n</class>\n'
class rpki_updown_list(rpki_updown_msg):
def __str__(self):
return 'RPKI list request'
class rpki_updown_list_response(rpki_updown_msg):
def __init__(self):
self.resource_classes = []
def startElement(self, name, attrs):
if name == 'class':
self.resource_classes.append(rpki_updown_class(attrs))
elif name == 'certificate':
self.resource_classes[-1].certs.append(rpki_updown_cert(attrs))
def endElement(self, name, text):
if name == 'certificate':
self.resource_classes[-1].certs[-1].cert = base64.b64decode(text)
elif name == 'issuer':
self.resource_classes[-1].issuer = base64.b64decode(text)
def innerToXML(self):
xml = ''
for c in self.resource_classes:
xml += c.toXML()
return xml
class rpki_updown_issue(rpki_updown_msg):
def startElement(self, name, attrs):
assert name == 'request'
self.class_name = attrs.getValue('class_name')
try:
self.req_resource_set_as = attrs.getValue('req_resource_set_as')
except KeyError:
self.req_resource_set_as = None
try:
self.req_resource_set_ipv4 = attrs.getValue('req_resource_set_ipv4')
except KeyError:
self.req_resource_set_ipv4 = None
try:
self.req_resource_set_ipv6 = attrs.getValue('req_resource_set_ipv6')
except KeyError:
self.req_resource_set_ipv6 = None
def endElement(self, name, text):
assert name == 'request'
self.pkcs10 = base64.b64decode(text)
def innerToXML(self):
xml = (' <request class_name="%s"' % self.class_name)
if self.req_resource_set_as != None:
xml += ('\n req_resource_set_as="%s"' % self.req_resource_set_as.toXML())
if self.req_resource_set_ipv4 != None:
xml += ('\n req_resource_set_ipv4="%s"' % self.req_resource_set_ipv4.toXML())
if self.req_resource_set_ipv6 != None:
xml += ('\n req_resource_set_ipv6="%s"' % self.req_resource_set_ipv6.toXML())
return xml + base64.b64encode(self.pkcs10) + ' </request>\n'
class rpki_updown_issue_response(rpki_updown_list_response):
def innerToXML(self):
assert len(self.resource_classes) < 2
rpki_updown_list_response.innerToXML(self)
class rpki_updown_revoke(rpki_updown_msg):
def __str__(self):
return 'RPKI %s class_name %s ski %s' % (self.type, self.class_name, self.ski)
def startElement(self, name, attrs):
self.class_name = attrs.getValue('class_name')
self.ski = attrs.getValue('ski')
def innerToXML(self):
return (' <key class_name="%s" ski="%s" />\n' % (self.class_name, self.ski))
class rpki_updown_revoke_response(rpki_updown_revoke): pass
class rpki_updown_error_response(rpki_updown_msg):
def __str__(self):
return 'RPKI error %d' % (self.status)
def innerToXML(self):
return '<status>%d</status>\n' % self.status
def endElement(self, name, text):
if name == 'status':
self.status = int(text)
elif name == 'last_message_processed':
self.last_message_processed = text
elif name == 'description':
self.description = text
class rpki_updown_sax_handler(xml.sax.handler.ContentHandler):
def __init__(self):
self.text = ''
self.obj = None
def startElementNS(self, name, qname, attrs):
# print "startElementNS()"
return self.startElement(name[1], attrs)
def endElementNS(self, name, qname):
# print "endElementNS()"
return self.endElement(name[1])
def startElement(self, name, attrs):
# print "startElement(" + name + ")"
if name == 'message':
assert int(attrs.getValue('version')) == 1
type = attrs.getValue('type')
if self.obj == None:
self.obj = {
'list' : rpki_updown_list(),
'list_response' : rpki_updown_list_response(),
'issue' : rpki_updown_issue(),
'issue_response' : rpki_updown_issue_response(),
'revoke' : rpki_updown_revoke(),
'revoke_response' : rpki_updown_revoke_response(),
'error_response' : rpki_updown_error_response()
}[type]
assert self.obj != None
self.obj.type = type
self.obj.sender = attrs.getValue('sender')
self.obj.recipient = attrs.getValue('recipient')
self.obj.msg_ref = int(attrs.getValue('msg_ref'))
else:
assert self.obj != None
self.obj.startElement(name, attrs)
def characters(self, content):
self.text += content
def endElement(self, name):
assert self.obj != None
if name != 'message':
self.obj.endElement(name, self.text)
self.text = ''
files = glob.glob("up-down-protocol-samples/*.xml")
files.sort()
for f in files:
try:
parser = xml.sax.make_parser()
handler = rpki_updown_sax_handler()
parser.setContentHandler(handler)
parser.parse(f)
obj = handler.obj
print "-- " + str(obj) + "\n"
print obj.toXML()
except Exception, err:
print "? " + str(err) + "\n"
|
