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
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
|
# Copyright (c) 2015, NORDUnet A/S.
# See LICENSE for licensing information.
import os
import base64
import hashlib
import sys
import struct
import urllib
import urllib2
import json
from certtools import get_leaf_hash, create_sth_signature, \
check_sth_signature, get_eckey_from_file, http_request, \
get_leaf_hash, decode_certificate_chain
def parselogrow(row):
return base64.b16decode(row, casefold=True)
def get_logorder(filename):
f = open(filename, "r")
return [parselogrow(row.rstrip()) for row in f]
def read_chain_open(chainsdir, filename):
path = chainsdir + "/" + filename[0:2] + "/" + filename[2:4] + "/" + filename[4:6]
f = open(path + "/" + filename, "r")
return f
def read_chain(chainsdir, key):
filename = base64.b16encode(key).upper()
try:
f = read_chain_open(chainsdir, filename)
except IOError:
f = read_chain_open(chainsdir, filename.lower())
value = f.read()
f.close()
return value
def tlv_decode(data):
(length,) = struct.unpack(">I", data[0:4])
type = data[4:8]
value = data[8:length]
rest = data[length:]
return (type, value, rest)
def tlv_encode(type, value):
assert(len(type) == 4)
data = struct.pack(">I", len(value) + 8) + type + value
return data
def tlv_decodelist(data):
l = []
while len(data):
(type, value, rest) = tlv_decode(data)
l.append((type, value))
data = rest
return l
def tlv_encodelist(l):
data = ""
for (type, value) in l:
data += tlv_encode(type, value)
return data
def unwrap_entry(entry):
ploplevel = tlv_decodelist(entry)
assert(len(ploplevel) == 2)
(ploptype, plopdata) = ploplevel[0]
(plopchecksumtype, plopchecksum) = ploplevel[1]
assert(ploptype == "PLOP")
assert(plopchecksumtype == "S256")
computedchecksum = hashlib.sha256(plopdata).digest()
assert(computedchecksum == plopchecksum)
return plopdata
def wrap_entry(entry):
return tlv_encodelist([("PLOP", entry),
("S256", hashlib.sha256(entry).digest())])
def verify_entry(verifycert, entry, hash):
packed = unwrap_entry(entry)
unpacked = tlv_decodelist(packed)
(mtltype, mtl) = unpacked[0]
assert hash == get_leaf_hash(mtl)
assert mtltype == "MTL1"
s = struct.pack(">I", len(packed)) + packed
try:
verifycert.stdin.write(s)
except IOError, e:
sys.stderr.write("merge: unable to write to verifycert process: ")
while 1:
line = verifycert.stdout.readline()
if line:
sys.stderr.write(line)
else:
sys.exit(1)
result_length_packed = verifycert.stdout.read(4)
(result_length,) = struct.unpack(">I", result_length_packed)
result = verifycert.stdout.read(result_length)
assert len(result) == result_length
(error_code,) = struct.unpack("B", result[0:1])
if error_code != 0:
print >>sys.stderr, result[1:]
sys.exit(1)
def hexencode(key):
return base64.b16encode(key).lower()
def write_chain(key, value, chainsdir, hashed_dir=True):
filename = hexencode(key)
if hashed_dir:
path = chainsdir + "/" \
+ filename[0:2] + "/" + filename[2:4] + "/" + filename[4:6]
try:
os.makedirs(path)
except Exception, e:
pass
else:
path = chainsdir
f = open(path + "/" + filename, "w")
f.write(value)
f.close()
def add_to_logorder(logorderfile, key):
f = open(logorderfile, "a")
f.write(hexencode(key) + "\n")
f.close()
def fsync_logorder(logorderfile):
f = open(logorderfile, "a")
os.fsync(f.fileno())
f.close()
def get_new_entries(node, baseurl, own_key, paths):
try:
result = http_request(baseurl + "plop/v1/storage/fetchnewentries",
key=own_key, verifynode=node,
publickeydir=paths["publickeys"])
parsed_result = json.loads(result)
if parsed_result.get(u"result") == u"ok":
return [base64.b64decode(entry) for \
entry in parsed_result[u"entries"]]
print >>sys.stderr, "ERROR: fetchnewentries", parsed_result
sys.exit(1)
except urllib2.HTTPError, e:
print >>sys.stderr, "ERROR: fetchnewentries", e.read()
sys.exit(1)
def get_entries(node, baseurl, own_key, paths, hashes):
try:
params = urllib.urlencode({"hash":[base64.b64encode(hash) for \
hash in hashes]}, doseq=True)
result = http_request(baseurl + "plop/v1/storage/getentry?" + params,
key=own_key, verifynode=node,
publickeydir=paths["publickeys"])
parsed_result = json.loads(result)
if parsed_result.get(u"result") == u"ok":
entries = dict([(base64.b64decode(entry["hash"]), base64.b64decode(entry["entry"])) for entry in parsed_result[u"entries"]])
assert len(entries) == len(hashes)
assert set(entries.keys()) == set(hashes)
return entries
print >>sys.stderr, "ERROR: getentry", parsed_result
sys.exit(1)
except urllib2.HTTPError, e:
print >>sys.stderr, "ERROR: getentry", e.read()
sys.exit(1)
def get_curpos(node, baseurl, own_key, paths):
try:
result = http_request(baseurl + "plop/v1/frontend/currentposition", key=own_key, verifynode=node, publickeydir=paths["publickeys"])
parsed_result = json.loads(result)
if parsed_result.get(u"result") == u"ok":
return parsed_result[u"position"]
print >>sys.stderr, "ERROR: currentposition", parsed_result
sys.exit(1)
except urllib2.HTTPError, e:
print >>sys.stderr, "ERROR: currentposition", e.read()
sys.exit(1)
def get_verifiedsize(node, baseurl, own_key, paths):
try:
result = http_request(baseurl + "plop/v1/merge/verifiedsize", key=own_key, verifynode=node, publickeydir=paths["publickeys"])
parsed_result = json.loads(result)
if parsed_result.get(u"result") == u"ok":
return parsed_result[u"size"]
print >>sys.stderr, "ERROR: verifiedsize", parsed_result
sys.exit(1)
except urllib2.HTTPError, e:
print >>sys.stderr, "ERROR: verifiedsize", e.read()
sys.exit(1)
def sendlog(node, baseurl, own_key, paths, submission):
try:
result = http_request(baseurl + "plop/v1/frontend/sendlog",
json.dumps(submission), key=own_key, verifynode=node, publickeydir=paths["publickeys"])
return json.loads(result)
except urllib2.HTTPError, e:
print >>sys.stderr, "ERROR: sendlog", e.read()
sys.stderr.flush()
return None
except ValueError, e:
print >>sys.stderr, "==== FAILED REQUEST ===="
print >>sys.stderr, submission
print >>sys.stderr, "======= RESPONSE ======="
print >>sys.stderr, result
print >>sys.stderr, "========================"
sys.stderr.flush()
raise e
def backup_sendlog(node, baseurl, own_key, paths, submission):
try:
result = http_request(baseurl + "plop/v1/merge/sendlog",
json.dumps(submission), key=own_key, verifynode=node, publickeydir=paths["publickeys"])
return json.loads(result)
except urllib2.HTTPError, e:
print >>sys.stderr, "ERROR: sendlog", e.read()
sys.stderr.flush()
return None
except ValueError, e:
print >>sys.stderr, "==== FAILED REQUEST ===="
print >>sys.stderr, submission
print >>sys.stderr, "======= RESPONSE ======="
print >>sys.stderr, result
print >>sys.stderr, "========================"
sys.stderr.flush()
raise e
def sendentry(node, baseurl, own_key, paths, entry, hash):
try:
result = http_request(baseurl + "plop/v1/frontend/sendentry",
json.dumps({"entry":base64.b64encode(entry), "treeleafhash":base64.b64encode(hash)}), key=own_key,
verifynode=node, publickeydir=paths["publickeys"])
return json.loads(result)
except urllib2.HTTPError, e:
print >>sys.stderr, "ERROR: sendentry", e.read()
sys.exit(1)
except ValueError, e:
print >>sys.stderr, "==== FAILED REQUEST ===="
print >>sys.stderr, hash
print >>sys.stderr, "======= RESPONSE ======="
print >>sys.stderr, result
print >>sys.stderr, "========================"
sys.stderr.flush()
raise e
def sendentry_merge(node, baseurl, own_key, paths, entry, hash):
try:
result = http_request(baseurl + "plop/v1/merge/sendentry",
json.dumps({"entry":base64.b64encode(entry), "treeleafhash":base64.b64encode(hash)}), key=own_key,
verifynode=node, publickeydir=paths["publickeys"])
return json.loads(result)
except urllib2.HTTPError, e:
print >>sys.stderr, "ERROR: sendentry", e.read()
sys.exit(1)
except ValueError, e:
print >>sys.stderr, "==== FAILED REQUEST ===="
print >>sys.stderr, hash
print >>sys.stderr, "======= RESPONSE ======="
print >>sys.stderr, result
print >>sys.stderr, "========================"
sys.stderr.flush()
raise e
def sendsth(node, baseurl, own_key, paths, submission):
try:
result = http_request(baseurl + "plop/v1/frontend/sendsth",
json.dumps(submission), key=own_key, verifynode=node, publickeydir=paths["publickeys"])
return json.loads(result)
except urllib2.HTTPError, e:
print >>sys.stderr, "ERROR: sendsth", e.read()
sys.exit(1)
except ValueError, e:
print >>sys.stderr, "==== FAILED REQUEST ===="
print >>sys.stderr, submission
print >>sys.stderr, "======= RESPONSE ======="
print >>sys.stderr, result
print >>sys.stderr, "========================"
sys.stderr.flush()
raise e
def verifyroot(node, baseurl, own_key, paths, treesize):
try:
result = http_request(baseurl + "plop/v1/merge/verifyroot",
json.dumps({"tree_size":treesize}), key=own_key, verifynode=node, publickeydir=paths["publickeys"])
return json.loads(result)
except urllib2.HTTPError, e:
print >>sys.stderr, "ERROR: verifyroot", e.read()
sys.exit(1)
except ValueError, e:
print >>sys.stderr, "==== FAILED REQUEST ===="
print >>sys.stderr, submission
print >>sys.stderr, "======= RESPONSE ======="
print >>sys.stderr, result
print >>sys.stderr, "========================"
sys.stderr.flush()
raise e
def setverifiedsize(node, baseurl, own_key, paths, treesize):
try:
result = http_request(baseurl + "plop/v1/merge/setverifiedsize",
json.dumps({"size":treesize}), key=own_key, verifynode=node, publickeydir=paths["publickeys"])
return json.loads(result)
except urllib2.HTTPError, e:
print >>sys.stderr, "ERROR: setverifiedsize", e.read()
sys.exit(1)
except ValueError, e:
print >>sys.stderr, "==== FAILED REQUEST ===="
print >>sys.stderr, submission
print >>sys.stderr, "======= RESPONSE ======="
print >>sys.stderr, result
print >>sys.stderr, "========================"
sys.stderr.flush()
raise e
def get_missingentries(node, baseurl, own_key, paths):
try:
result = http_request(baseurl + "plop/v1/frontend/missingentries", key=own_key, verifynode=node, publickeydir=paths["publickeys"])
parsed_result = json.loads(result)
if parsed_result.get(u"result") == u"ok":
return parsed_result[u"entries"]
print >>sys.stderr, "ERROR: missingentries", parsed_result
sys.exit(1)
except urllib2.HTTPError, e:
print >>sys.stderr, "ERROR: missingentries", e.read()
sys.exit(1)
def get_missingentriesforbackup(node, baseurl, own_key, paths):
try:
result = http_request(baseurl + "plop/v1/merge/missingentries", key=own_key, verifynode=node, publickeydir=paths["publickeys"])
parsed_result = json.loads(result)
if parsed_result.get(u"result") == u"ok":
return parsed_result[u"entries"]
print >>sys.stderr, "ERROR: missingentriesforbackup", parsed_result
sys.exit(1)
except urllib2.HTTPError, e:
print >>sys.stderr, "ERROR: missingentriesforbackup", e.read()
sys.exit(1)
def chunks(l, n):
return [l[i:i+n] for i in range(0, len(l), n)]
|
