X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/tripe/blobdiff_plain/6005ef9bfba49124a25825a5b044d4f4cbf02792..14b77b60fdb2b36409a403bf8753d877f33e32b9:/keys/tripe-keys.in

diff --git a/keys/tripe-keys.in b/keys/tripe-keys.in
index 7ed3aae7..901e09b9 100644
--- a/keys/tripe-keys.in
+++ b/keys/tripe-keys.in
@@ -33,6 +33,7 @@ import sys as SYS
 import re as RX
 import getopt as O
 import shutil as SH
+import time as T
 import filecmp as FC
 from cStringIO import StringIO
 from errno import *
@@ -240,6 +241,7 @@ def conf_defaults():
                ('kx-param', lambda: {'dh': '-LS -b3072 -B256',
                                      'ec': '-Cnist-p256'}[conf['kx']]),
                ('kx-expire', 'now + 1 year'),
+               ('kx-warn-days', '28'),
                ('cipher', 'rijndael-cbc'),
                ('hash', 'sha256'),
                ('master-keygen-flags', '-l'),
@@ -342,8 +344,9 @@ Subcommands available:
     args = commands.keys()
     args.sort()
   for c in args:
-    func, min, max, help = commands[c]
-    print '%s %s' % (c, help)
+    try: func, min, max, help = commands[c]
+    except KeyError: die("unknown command `%s'" % c)
+    print '%s%s%s' % (c, help and ' ', help)
 
 ###--------------------------------------------------------------------------
 ### Commands: newmaster
@@ -363,8 +366,8 @@ def cmd_setup(args):
   OS.mkdir('repos')
   run('''key -krepos/param add
     -a${kx}-param !${kx-param}
-    -eforever -tparam tripe-${kx}-param
-    cipher=${cipher} hash=${hash} mac=${mac} mgf=${mgf}''')
+    -eforever -tparam tripe-param
+    kx-group=${kx} cipher=${cipher} hash=${hash} mac=${mac} mgf=${mgf}''')
   cmd_newmaster(args)
 
 ###--------------------------------------------------------------------------
@@ -476,7 +479,7 @@ def cmd_generate(args):
   keyring_pub = 'peer-%s.pub' % tag
   zap('keyring'); zap(keyring_pub)
   run('key -kkeyring merge repos/param')
-  run('key -kkeyring add -a${kx} -pparam -e${kx-expire} -t%s tripe-${kx}' %
+  run('key -kkeyring add -a${kx} -pparam -e${kx-expire} -t%s tripe' %
       tag)
   run('key -kkeyring extract -f-secret %s %s' % (keyring_pub, tag))
 
@@ -493,6 +496,38 @@ def cmd_clean(args):
         r == 'keyring' or r == 'keyring.pub' or r.startswith('peer-')):
       zap(i)
 
+###--------------------------------------------------------------------------
+### Commands: check
+
+def check_key(k):
+  now = T.time()
+  thresh = int(conf['kx-warn-days']) * 86400
+  if k.exptime == C.KEXP_FOREVER: return None
+  elif k.exptime == C.KEXP_EXPIRE: left = -1
+  else: left = k.exptime - now
+  if left < 0:
+    return "key `%s' HAS EXPIRED" % k.tag
+  elif left < thresh:
+    if left >= 86400: n, u, uu = left // 86400, 'day', 'days'
+    else: n, u, uu = left // 3600, 'hour', 'hours'
+    return "key `%s' EXPIRES in %d %s" % (k.tag, n, n == 1 and u or uu)
+  else:
+    return None
+
+def cmd_check(args):
+  if OS.path.exists('keyring.pub'):
+    for k in C.KeyFile('keyring.pub').itervalues():
+      whinge = check_key(k)
+      if whinge is not None: print whinge
+  if OS.path.exists('master'):
+    whinges = []
+    for k in C.KeyFile('master').itervalues():
+      whinge = check_key(k)
+      if whinge is None: break
+      whinges.append(whinge)
+    else:
+      for whinge in whinges: print whinge
+
 ###--------------------------------------------------------------------------
 ### Commands: mtu
 
@@ -520,9 +555,6 @@ def cmd_mtu(args):
 ###--------------------------------------------------------------------------
 ### Main driver.
 
-## Exceptions.
-class UsageError (Exception): pass
-
 commands = {'help': (cmd_help, 0, 1, ''),
             'newmaster': (cmd_newmaster, 0, 0, ''),
             'setup': (cmd_setup, 0, 0, ''),
@@ -530,6 +562,7 @@ commands = {'help': (cmd_help, 0, 1, ''),
             'update': (cmd_update, 0, 0, ''),
             'clean': (cmd_clean, 0, 0, ''),
             'mtu': (cmd_mtu, 0, 1, '[PATH-MTU]'),
+            'check': (cmd_check, 0, 0, ''),
             'generate': (cmd_generate, 1, 1, 'TAG'),
             'rebuild': (cmd_rebuild, 0, 0, '')}
 
@@ -569,10 +602,12 @@ def main(argv):
     cmd_help([])
   else:
     c = argv[1]
-    func, min, max, help = commands[c]
+    try: func, min, max, help = commands[c]
+    except KeyError: die("unknown command `%s'" % c)
     args = argv[2:]
-    if len(args) < min or (max > 0 and len(args) > max):
-      raise UsageError, (c, help)
+    if len(args) < min or (max is not None and len(args) > max):
+      SYS.stderr.write('Usage: %s %s%s%s\n' % (quis, c, help and ' ', help))
+      SYS.exit(1)
     func(args)
 
 ###----- That's all, folks --------------------------------------------------