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060ca767 | 1 | #! @PYTHON@ |
fd42a1e5 MW |
2 | ### -*-python-*- |
3 | ### | |
4 | ### Key management and distribution | |
5 | ### | |
6 | ### (c) 2006 Straylight/Edgeware | |
7 | ### | |
8 | ||
9 | ###----- Licensing notice --------------------------------------------------- | |
10 | ### | |
11 | ### This file is part of Trivial IP Encryption (TrIPE). | |
12 | ### | |
13 | ### TrIPE is free software; you can redistribute it and/or modify | |
14 | ### it under the terms of the GNU General Public License as published by | |
15 | ### the Free Software Foundation; either version 2 of the License, or | |
16 | ### (at your option) any later version. | |
17 | ### | |
18 | ### TrIPE is distributed in the hope that it will be useful, | |
19 | ### but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | ### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | ### GNU General Public License for more details. | |
22 | ### | |
23 | ### You should have received a copy of the GNU General Public License | |
24 | ### along with TrIPE; if not, write to the Free Software Foundation, | |
25 | ### Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
26 | ||
27 | ###-------------------------------------------------------------------------- | |
28 | ### External dependencies. | |
060ca767 | 29 | |
30 | import catacomb as C | |
31 | import os as OS | |
32 | import sys as SYS | |
33 | import sre as RX | |
34 | import getopt as O | |
c77687d5 | 35 | import shutil as SH |
36 | import filecmp as FC | |
060ca767 | 37 | from cStringIO import StringIO |
38 | from errno import * | |
39 | from stat import * | |
40 | ||
fd42a1e5 | 41 | ###-------------------------------------------------------------------------- |
060ca767 | 42 | ### Useful regular expressions |
43 | ||
fd42a1e5 | 44 | ## Match a comment or blank line. |
c77687d5 | 45 | rx_comment = RX.compile(r'^\s*(#|$)') |
fd42a1e5 MW |
46 | |
47 | ## Match a KEY = VALUE assignment. | |
c77687d5 | 48 | rx_keyval = RX.compile(r'^\s*([-\w]+)(?:\s+(?!=)|\s*=\s*)(|\S|\S.*\S)\s*$') |
fd42a1e5 MW |
49 | |
50 | ## Match a ${KEY} substitution. | |
c77687d5 | 51 | rx_dollarsubst = RX.compile(r'\$\{([-\w]+)\}') |
fd42a1e5 MW |
52 | |
53 | ## Match a @TAG@ substitution. | |
c77687d5 | 54 | rx_atsubst = RX.compile(r'@([-\w]+)@') |
fd42a1e5 MW |
55 | |
56 | ## Match a single non-alphanumeric character. | |
c77687d5 | 57 | rx_nonalpha = RX.compile(r'\W') |
fd42a1e5 MW |
58 | |
59 | ## Match the literal string "<SEQ>". | |
c77687d5 | 60 | rx_seq = RX.compile(r'\<SEQ\>') |
060ca767 | 61 | |
fd42a1e5 MW |
62 | ###-------------------------------------------------------------------------- |
63 | ### Utility functions. | |
060ca767 | 64 | |
fd42a1e5 | 65 | ## Exceptions. |
060ca767 | 66 | class SubprocessError (Exception): pass |
67 | class VerifyError (Exception): pass | |
68 | ||
fd42a1e5 | 69 | ## Program name and identification. |
060ca767 | 70 | quis = OS.path.basename(SYS.argv[0]) |
71 | PACKAGE = "@PACKAGE@" | |
72 | VERSION = "@VERSION@" | |
73 | ||
74 | def moan(msg): | |
fd42a1e5 | 75 | """Report MSG to standard error.""" |
060ca767 | 76 | SYS.stderr.write('%s: %s\n' % (quis, msg)) |
77 | ||
78 | def die(msg, rc = 1): | |
fd42a1e5 | 79 | """Report MSG to standard error, and exit with code RC.""" |
060ca767 | 80 | moan(msg) |
81 | SYS.exit(rc) | |
82 | ||
83 | def subst(s, rx, map): | |
fd42a1e5 MW |
84 | """ |
85 | Substitute values into a string. | |
86 | ||
87 | Repeatedly match RX (a compiled regular expression) against the string S. | |
88 | For each match, extract group 1, and use it as a key to index the MAP; | |
89 | replace the match by the result. Finally, return the fully-substituted | |
90 | string. | |
91 | """ | |
060ca767 | 92 | out = StringIO() |
93 | i = 0 | |
94 | for m in rx.finditer(s): | |
95 | out.write(s[i:m.start()] + map[m.group(1)]) | |
96 | i = m.end() | |
97 | out.write(s[i:]) | |
98 | return out.getvalue() | |
99 | ||
100 | def rmtree(path): | |
fd42a1e5 | 101 | """Delete the directory tree given by PATH.""" |
060ca767 | 102 | try: |
c77687d5 | 103 | st = OS.lstat(path) |
060ca767 | 104 | except OSError, err: |
105 | if err.errno == ENOENT: | |
106 | return | |
107 | raise | |
108 | if not S_ISDIR(st.st_mode): | |
109 | OS.unlink(path) | |
110 | else: | |
111 | cwd = OS.getcwd() | |
112 | try: | |
113 | OS.chdir(path) | |
114 | for i in OS.listdir('.'): | |
115 | rmtree(i) | |
116 | finally: | |
117 | OS.chdir(cwd) | |
118 | OS.rmdir(path) | |
119 | ||
120 | def zap(file): | |
fd42a1e5 | 121 | """Delete the named FILE if it exists; otherwise do nothing.""" |
060ca767 | 122 | try: |
123 | OS.unlink(file) | |
124 | except OSError, err: | |
125 | if err.errno == ENOENT: return | |
126 | raise | |
127 | ||
128 | def run(args): | |
fd42a1e5 MW |
129 | """ |
130 | Run a subprocess whose arguments are given by the string ARGS. | |
131 | ||
132 | The ARGS are split at word boundaries, and then subjected to configuration | |
133 | variable substitution (see conf_subst). Individual argument elements | |
134 | beginning with `!' are split again into multiple arguments at word | |
135 | boundaries. | |
136 | """ | |
060ca767 | 137 | args = map(conf_subst, args.split()) |
138 | nargs = [] | |
139 | for a in args: | |
140 | if len(a) > 0 and a[0] != '!': | |
141 | nargs += [a] | |
142 | else: | |
143 | nargs += a[1:].split() | |
144 | args = nargs | |
145 | print '+ %s' % ' '.join(args) | |
146 | rc = OS.spawnvp(OS.P_WAIT, args[0], args) | |
147 | if rc != 0: | |
148 | raise SubprocessError, rc | |
149 | ||
150 | def hexhyphens(bytes): | |
fd42a1e5 MW |
151 | """ |
152 | Convert a byte string BYTES into hex, with hyphens at each 4-byte boundary. | |
153 | """ | |
060ca767 | 154 | out = StringIO() |
155 | for i in xrange(0, len(bytes)): | |
156 | if i > 0 and i % 4 == 0: out.write('-') | |
157 | out.write('%02x' % ord(bytes[i])) | |
158 | return out.getvalue() | |
159 | ||
160 | def fingerprint(kf, ktag): | |
fd42a1e5 MW |
161 | """ |
162 | Compute the fingerprint of a key, using the user's selected hash. | |
163 | ||
164 | KF is the name of a keyfile; KTAG is the tag of the key. | |
165 | """ | |
060ca767 | 166 | h = C.gchashes[conf['fingerprint-hash']]() |
167 | k = C.KeyFile(kf)[ktag].fingerprint(h, '-secret') | |
168 | return h.done() | |
169 | ||
fd42a1e5 MW |
170 | ###-------------------------------------------------------------------------- |
171 | ### The configuration file. | |
060ca767 | 172 | |
fd42a1e5 | 173 | ## Exceptions. |
060ca767 | 174 | class ConfigFileError (Exception): pass |
fd42a1e5 MW |
175 | |
176 | ## The configuration dictionary. | |
060ca767 | 177 | conf = {} |
178 | ||
fd42a1e5 MW |
179 | def conf_subst(s): |
180 | """ | |
181 | Apply configuration substitutions to S. | |
182 | ||
183 | That is, for each ${KEY} in S, replace it with the current value of the | |
184 | configuration variable KEY. | |
185 | """ | |
186 | return subst(s, rx_dollarsubst, conf) | |
060ca767 | 187 | |
060ca767 | 188 | def conf_read(f): |
fd42a1e5 MW |
189 | """ |
190 | Read the file F and insert assignments into the configuration dictionary. | |
191 | """ | |
060ca767 | 192 | lno = 0 |
193 | for line in file(f): | |
194 | lno += 1 | |
c77687d5 | 195 | if rx_comment.match(line): continue |
060ca767 | 196 | if line[-1] == '\n': line = line[:-1] |
c77687d5 | 197 | match = rx_keyval.match(line) |
060ca767 | 198 | if not match: |
199 | raise ConfigFileError, "%s:%d: bad line `%s'" % (f, lno, line) | |
200 | k, v = match.groups() | |
201 | conf[k] = conf_subst(v) | |
202 | ||
060ca767 | 203 | def conf_defaults(): |
fd42a1e5 MW |
204 | """ |
205 | Apply defaults to the configuration dictionary. | |
206 | ||
207 | Fill in all the interesting configuration variables based on the existing | |
208 | contents, as described in the manual. | |
209 | """ | |
c77687d5 | 210 | for k, v in [('repos-base', 'tripe-keys.tar.gz'), |
211 | ('sig-base', 'tripe-keys.sig-<SEQ>'), | |
212 | ('repos-url', '${base-url}${repos-base}'), | |
213 | ('sig-url', '${base-url}${sig-base}'), | |
214 | ('sig-file', '${base-dir}${sig-base}'), | |
215 | ('repos-file', '${base-dir}${repos-base}'), | |
060ca767 | 216 | ('conf-file', '${base-dir}tripe-keys.conf'), |
b14ccd2f | 217 | ('upload-hook', ': run upload hook'), |
060ca767 | 218 | ('kx', 'dh'), |
219 | ('kx-param', lambda: {'dh': '-LS -b2048 -B256', | |
220 | 'ec': '-Cnist-p256'}[conf['kx']]), | |
221 | ('kx-expire', 'now + 1 year'), | |
222 | ('cipher', 'blowfish-cbc'), | |
223 | ('hash', 'sha256'), | |
7858dfa0 | 224 | ('master-keygen-flags', '-l'), |
060ca767 | 225 | ('mgf', '${hash}-mgf'), |
226 | ('mac', lambda: '%s-hmac/%d' % | |
227 | (conf['hash'], | |
228 | C.gchashes[conf['hash']].hashsz * 4)), | |
229 | ('sig', lambda: {'dh': 'dsa', 'ec': 'ecdsa'}[conf['kx']]), | |
230 | ('sig-fresh', 'always'), | |
231 | ('sig-genalg', lambda: {'kcdsa': 'dh', | |
232 | 'dsa': 'dsa', | |
233 | 'rsapkcs1': 'rsa', | |
234 | 'rsapss': 'rsa', | |
235 | 'ecdsa': 'ec', | |
236 | 'eckcdsa': 'ec'}[conf['sig']]), | |
237 | ('sig-param', lambda: {'dh': '-LS -b2048 -B256', | |
238 | 'dsa': '-b2048 -B256', | |
239 | 'ec': '-Cnist-p256', | |
240 | 'rsa': '-b2048'}[conf['sig-genalg']]), | |
241 | ('sig-hash', '${hash}'), | |
242 | ('sig-expire', 'forever'), | |
243 | ('fingerprint-hash', '${hash}')]: | |
244 | try: | |
245 | if k in conf: continue | |
246 | if type(v) == str: | |
247 | conf[k] = conf_subst(v) | |
248 | else: | |
249 | conf[k] = v() | |
250 | except KeyError, exc: | |
251 | if len(exc.args) == 0: raise | |
252 | conf[k] = '<missing-var %s>' % exc.args[0] | |
253 | ||
fd42a1e5 MW |
254 | ###-------------------------------------------------------------------------- |
255 | ### Key-management utilities. | |
256 | ||
257 | def master_keys(): | |
258 | """ | |
259 | Iterate over the master keys. | |
260 | """ | |
261 | if not OS.path.exists('master'): | |
262 | return | |
263 | for k in C.KeyFile('master').itervalues(): | |
264 | if (k.type != 'tripe-keys-master' or | |
265 | k.expiredp or | |
266 | not k.tag.startswith('master-')): | |
267 | continue #?? | |
268 | yield k | |
269 | ||
270 | def master_sequence(k): | |
271 | """ | |
272 | Return the sequence number of the given master key as an integer. | |
273 | ||
274 | No checking is done that K is really a master key. | |
275 | """ | |
276 | return int(k.tag[7:]) | |
277 | ||
278 | def max_master_sequence(): | |
279 | """ | |
280 | Find the master key with the highest sequence number and return this | |
281 | sequence number. | |
282 | """ | |
283 | seq = -1 | |
284 | for k in master_keys(): | |
285 | q = master_sequence(k) | |
286 | if q > seq: seq = q | |
287 | return seq | |
288 | ||
289 | def seqsubst(x, q): | |
290 | """ | |
291 | Return the value of the configuration variable X, with <SEQ> replaced by | |
292 | the value Q. | |
293 | """ | |
294 | return rx_seq.sub(str(q), conf[x]) | |
295 | ||
296 | ###-------------------------------------------------------------------------- | |
297 | ### Commands: help [COMMAND...] | |
060ca767 | 298 | |
299 | def version(fp = SYS.stdout): | |
300 | fp.write('%s, %s version %s\n' % (quis, PACKAGE, VERSION)) | |
301 | ||
302 | def usage(fp): | |
303 | fp.write('Usage: %s SUBCOMMAND [ARGS...]\n' % quis) | |
304 | ||
305 | def cmd_help(args): | |
306 | if len(args) == 0: | |
307 | version(SYS.stdout) | |
308 | ||
309 | usage(SYS.stdout) | |
310 | print """ | |
311 | Key management utility for TrIPE. | |
312 | ||
313 | Options supported: | |
314 | ||
e04c2d50 MW |
315 | -h, --help Show this help message. |
316 | -v, --version Show the version number. | |
317 | -u, --usage Show pointlessly short usage string. | |
060ca767 | 318 | |
319 | Subcommands available: | |
320 | """ | |
321 | args = commands.keys() | |
322 | args.sort() | |
323 | for c in args: | |
324 | func, min, max, help = commands[c] | |
325 | print '%s %s' % (c, help) | |
326 | ||
fd42a1e5 MW |
327 | ###-------------------------------------------------------------------------- |
328 | ### Commands: newmaster | |
c77687d5 | 329 | |
330 | def cmd_newmaster(args): | |
331 | seq = max_master_sequence() + 1 | |
060ca767 | 332 | run('''key -kmaster add |
333 | -a${sig-genalg} !${sig-param} | |
7858dfa0 | 334 | -e${sig-expire} !${master-keygen-flags} -tmaster-%d tripe-keys-master |
c77687d5 | 335 | sig=${sig} hash=${sig-hash}''' % seq) |
336 | run('key -kmaster extract -f-secret repos/master.pub') | |
060ca767 | 337 | |
fd42a1e5 MW |
338 | ###-------------------------------------------------------------------------- |
339 | ### Commands: setup | |
340 | ||
c77687d5 | 341 | def cmd_setup(args): |
342 | OS.mkdir('repos') | |
060ca767 | 343 | run('''key -krepos/param add |
344 | -a${kx}-param !${kx-param} | |
345 | -eforever -tparam tripe-${kx}-param | |
346 | cipher=${cipher} hash=${hash} mac=${mac} mgf=${mgf}''') | |
c77687d5 | 347 | cmd_newmaster(args) |
060ca767 | 348 | |
fd42a1e5 MW |
349 | ###-------------------------------------------------------------------------- |
350 | ### Commands: upload | |
351 | ||
060ca767 | 352 | def cmd_upload(args): |
353 | ||
354 | ## Sanitize the repository directory | |
355 | umask = OS.umask(0); OS.umask(umask) | |
356 | mode = 0666 & ~umask | |
357 | for f in OS.listdir('repos'): | |
358 | ff = OS.path.join('repos', f) | |
c77687d5 | 359 | if (f.startswith('master') or f.startswith('peer-')) \ |
360 | and f.endswith('.old'): | |
060ca767 | 361 | OS.unlink(ff) |
362 | continue | |
c77687d5 | 363 | OS.chmod(ff, mode) |
364 | ||
365 | rmtree('tmp') | |
366 | OS.mkdir('tmp') | |
367 | OS.symlink('../repos', 'tmp/repos') | |
368 | cwd = OS.getcwd() | |
369 | try: | |
370 | ||
371 | ## Build the configuration file | |
372 | seq = max_master_sequence() | |
373 | v = {'MASTER-SEQUENCE': str(seq), | |
374 | 'HK-MASTER': hexhyphens(fingerprint('repos/master.pub', | |
375 | 'master-%d' % seq))} | |
376 | fin = file('tripe-keys.master') | |
377 | fout = file('tmp/tripe-keys.conf', 'w') | |
378 | for line in fin: | |
379 | fout.write(subst(line, rx_atsubst, v)) | |
380 | fin.close(); fout.close() | |
381 | SH.copyfile('tmp/tripe-keys.conf', conf_subst('${conf-file}.new')) | |
382 | commit = [conf['repos-file'], conf['conf-file']] | |
383 | ||
384 | ## Make and sign the repository archive | |
385 | OS.chdir('tmp') | |
386 | run('tar chozf ${repos-file}.new .') | |
387 | OS.chdir(cwd) | |
388 | for k in master_keys(): | |
389 | seq = master_sequence(k) | |
390 | sigfile = seqsubst('sig-file', seq) | |
391 | run('''catsign -kmaster sign -abdC -kmaster-%d | |
392 | -o%s.new ${repos-file}.new''' % (seq, sigfile)) | |
393 | commit.append(sigfile) | |
394 | ||
395 | ## Commit the changes | |
396 | for base in commit: | |
397 | new = '%s.new' % base | |
398 | OS.rename(new, base) | |
399 | finally: | |
400 | OS.chdir(cwd) | |
e04c2d50 | 401 | rmtree('tmp') |
b14ccd2f | 402 | run('sh -c ${upload-hook}') |
060ca767 | 403 | |
fd42a1e5 MW |
404 | ###-------------------------------------------------------------------------- |
405 | ### Commands: rebuild | |
406 | ||
407 | def cmd_rebuild(args): | |
408 | zap('keyring.pub') | |
409 | for i in OS.listdir('repos'): | |
410 | if i.startswith('peer-') and i.endswith('.pub'): | |
411 | run('key -kkeyring.pub merge %s' % OS.path.join('repos', i)) | |
412 | ||
413 | ###-------------------------------------------------------------------------- | |
414 | ### Commands: update | |
415 | ||
060ca767 | 416 | def cmd_update(args): |
417 | cwd = OS.getcwd() | |
418 | rmtree('tmp') | |
419 | try: | |
420 | ||
421 | ## Fetch a new distribution | |
422 | OS.mkdir('tmp') | |
423 | OS.chdir('tmp') | |
c77687d5 | 424 | seq = int(conf['master-sequence']) |
162fcf48 MW |
425 | run('curl -s -o tripe-keys.tar.gz ${repos-url}') |
426 | run('curl -s -o tripe-keys.sig %s' % seqsubst('sig-url', seq)) | |
060ca767 | 427 | run('tar xfz tripe-keys.tar.gz') |
428 | ||
429 | ## Verify the signature | |
c77687d5 | 430 | want = C.bytes(rx_nonalpha.sub('', conf['hk-master'])) |
431 | got = fingerprint('repos/master.pub', 'master-%d' % seq) | |
060ca767 | 432 | if want != got: raise VerifyError |
c77687d5 | 433 | run('''catsign -krepos/master.pub verify -avC -kmaster-%d |
434 | -t${sig-fresh} tripe-keys.sig tripe-keys.tar.gz''' % seq) | |
060ca767 | 435 | |
436 | ## OK: update our copy | |
437 | OS.chdir(cwd) | |
438 | if OS.path.exists('repos'): OS.rename('repos', 'repos.old') | |
439 | OS.rename('tmp/repos', 'repos') | |
c77687d5 | 440 | if not FC.cmp('tmp/tripe-keys.conf', 'tripe-keys.conf'): |
441 | moan('configuration file changed: recommend running another update') | |
442 | OS.rename('tmp/tripe-keys.conf', 'tripe-keys.conf') | |
060ca767 | 443 | rmtree('repos.old') |
444 | ||
445 | finally: | |
446 | OS.chdir(cwd) | |
447 | rmtree('tmp') | |
448 | cmd_rebuild(args) | |
449 | ||
fd42a1e5 MW |
450 | ###-------------------------------------------------------------------------- |
451 | ### Commands: generate TAG | |
060ca767 | 452 | |
453 | def cmd_generate(args): | |
454 | tag, = args | |
455 | keyring_pub = 'peer-%s.pub' % tag | |
456 | zap('keyring'); zap(keyring_pub) | |
457 | run('key -kkeyring merge repos/param') | |
458 | run('key -kkeyring add -a${kx} -pparam -e${kx-expire} -t%s tripe-${kx}' % | |
c77687d5 | 459 | tag) |
ca6eb20c | 460 | run('key -kkeyring extract -f-secret %s %s' % (keyring_pub, tag)) |
060ca767 | 461 | |
fd42a1e5 MW |
462 | ###-------------------------------------------------------------------------- |
463 | ### Commands: clean | |
464 | ||
060ca767 | 465 | def cmd_clean(args): |
466 | rmtree('repos') | |
467 | rmtree('tmp') | |
c77687d5 | 468 | for i in OS.listdir('.'): |
469 | r = i | |
470 | if r.endswith('.old'): r = r[:-4] | |
471 | if (r == 'master' or r == 'param' or | |
472 | r == 'keyring' or r == 'keyring.pub' or r.startswith('peer-')): | |
473 | zap(i) | |
060ca767 | 474 | |
fd42a1e5 MW |
475 | ###-------------------------------------------------------------------------- |
476 | ### Main driver. | |
060ca767 | 477 | |
fd42a1e5 | 478 | ## Exceptions. |
060ca767 | 479 | class UsageError (Exception): pass |
e04c2d50 | 480 | |
060ca767 | 481 | commands = {'help': (cmd_help, 0, 1, ''), |
c77687d5 | 482 | 'newmaster': (cmd_newmaster, 0, 0, ''), |
060ca767 | 483 | 'setup': (cmd_setup, 0, 0, ''), |
484 | 'upload': (cmd_upload, 0, 0, ''), | |
485 | 'update': (cmd_update, 0, 0, ''), | |
486 | 'clean': (cmd_clean, 0, 0, ''), | |
487 | 'generate': (cmd_generate, 1, 1, 'TAG'), | |
488 | 'rebuild': (cmd_rebuild, 0, 0, '')} | |
489 | ||
490 | def init(): | |
fd42a1e5 MW |
491 | """ |
492 | Load the appropriate configuration file and set up the configuration | |
493 | dictionary. | |
494 | """ | |
060ca767 | 495 | for f in ['tripe-keys.master', 'tripe-keys.conf']: |
496 | if OS.path.exists(f): | |
497 | conf_read(f) | |
498 | break | |
499 | conf_defaults() | |
fd42a1e5 | 500 | |
060ca767 | 501 | def main(argv): |
fd42a1e5 MW |
502 | """ |
503 | Main program: parse options and dispatch to appropriate command handler. | |
504 | """ | |
060ca767 | 505 | try: |
506 | opts, args = O.getopt(argv[1:], 'hvu', | |
507 | ['help', 'version', 'usage']) | |
508 | except O.GetoptError, exc: | |
509 | moan(exc) | |
510 | usage(SYS.stderr) | |
511 | SYS.exit(1) | |
512 | for o, v in opts: | |
513 | if o in ('-h', '--help'): | |
514 | cmd_help([]) | |
515 | SYS.exit(0) | |
516 | elif o in ('-v', '--version'): | |
517 | version(SYS.stdout) | |
518 | SYS.exit(0) | |
519 | elif o in ('-u', '--usage'): | |
520 | usage(SYS.stdout) | |
521 | SYS.exit(0) | |
522 | if len(argv) < 2: | |
523 | cmd_help([]) | |
524 | else: | |
525 | c = argv[1] | |
526 | func, min, max, help = commands[c] | |
527 | args = argv[2:] | |
528 | if len(args) < min or (max > 0 and len(args) > max): | |
529 | raise UsageError, (c, help) | |
530 | func(args) | |
531 | ||
fd42a1e5 MW |
532 | ###----- That's all, folks -------------------------------------------------- |
533 | ||
534 | if __name__ == '__main__': | |
535 | init() | |
536 | main(SYS.argv) |