73
62
server_interface = domain + ".Mandos"
74
63
client_interface = domain + ".Mandos.Client"
66
def timedelta_to_milliseconds(td):
67
"""Convert a datetime.timedelta object to milliseconds"""
68
return ((td.days * 24 * 60 * 60 * 1000)
70
+ (td.microseconds // 1000))
77
72
def milliseconds_to_string(ms):
78
73
td = datetime.timedelta(0, 0, 0, ms)
79
74
return ("{days}{hours:02}:{minutes:02}:{seconds:02}"
80
.format(days = "{}T".format(td.days) if td.days else "",
75
.format(days = "{0}T".format(td.days) if td.days else "",
81
76
hours = td.seconds // 3600,
82
77
minutes = (td.seconds % 3600) // 60,
83
78
seconds = td.seconds % 60,
87
def rfc3339_duration_to_delta(duration):
88
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
90
>>> rfc3339_duration_to_delta("P7D")
92
>>> rfc3339_duration_to_delta("PT60S")
93
datetime.timedelta(0, 60)
94
>>> rfc3339_duration_to_delta("PT60M")
95
datetime.timedelta(0, 3600)
96
>>> rfc3339_duration_to_delta("PT24H")
98
>>> rfc3339_duration_to_delta("P1W")
100
>>> rfc3339_duration_to_delta("PT5M30S")
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datetime.timedelta(0, 330)
102
>>> rfc3339_duration_to_delta("P1DT3M20S")
103
datetime.timedelta(1, 200)
106
# Parsing an RFC 3339 duration with regular expressions is not
107
# possible - there would have to be multiple places for the same
108
# values, like seconds. The current code, while more esoteric, is
109
# cleaner without depending on a parsing library. If Python had a
110
# built-in library for parsing we would use it, but we'd like to
111
# avoid excessive use of external libraries.
113
# New type for defining tokens, syntax, and semantics all-in-one
114
Token = collections.namedtuple("Token",
115
("regexp", # To match token; if
116
# "value" is not None,
117
# must have a "group"
119
"value", # datetime.timedelta or
121
"followers")) # Tokens valid after
123
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
124
# the "duration" ABNF definition in RFC 3339, Appendix A.
125
token_end = Token(re.compile(r"$"), None, frozenset())
126
token_second = Token(re.compile(r"(\d+)S"),
127
datetime.timedelta(seconds=1),
128
frozenset((token_end,)))
129
token_minute = Token(re.compile(r"(\d+)M"),
130
datetime.timedelta(minutes=1),
131
frozenset((token_second, token_end)))
132
token_hour = Token(re.compile(r"(\d+)H"),
133
datetime.timedelta(hours=1),
134
frozenset((token_minute, token_end)))
135
token_time = Token(re.compile(r"T"),
137
frozenset((token_hour, token_minute,
139
token_day = Token(re.compile(r"(\d+)D"),
140
datetime.timedelta(days=1),
141
frozenset((token_time, token_end)))
142
token_month = Token(re.compile(r"(\d+)M"),
143
datetime.timedelta(weeks=4),
144
frozenset((token_day, token_end)))
145
token_year = Token(re.compile(r"(\d+)Y"),
146
datetime.timedelta(weeks=52),
147
frozenset((token_month, token_end)))
148
token_week = Token(re.compile(r"(\d+)W"),
149
datetime.timedelta(weeks=1),
150
frozenset((token_end,)))
151
token_duration = Token(re.compile(r"P"), None,
152
frozenset((token_year, token_month,
153
token_day, token_time,
155
# Define starting values
156
value = datetime.timedelta() # Value so far
158
followers = frozenset((token_duration,)) # Following valid tokens
159
s = duration # String left to parse
160
# Loop until end token is found
161
while found_token is not token_end:
162
# Search for any currently valid tokens
163
for token in followers:
164
match = token.regexp.match(s)
165
if match is not None:
167
if token.value is not None:
168
# Value found, parse digits
169
factor = int(match.group(1), 10)
170
# Add to value so far
171
value += factor * token.value
172
# Strip token from string
173
s = token.regexp.sub("", s, 1)
176
# Set valid next tokens
177
followers = found_token.followers
180
# No currently valid tokens were found
181
raise ValueError("Invalid RFC 3339 duration")
186
81
def string_to_delta(interval):
187
82
"""Parse a string and return a datetime.timedelta
310
199
parser.add_argument("--approval-duration",
311
200
help="Set duration of one client approval")
312
201
parser.add_argument("-H", "--host", help="Set host for client")
313
parser.add_argument("-s", "--secret",
314
type=argparse.FileType(mode="rb"),
202
parser.add_argument("-s", "--secret", type=file,
315
203
help="Set password blob (file) for client")
316
204
parser.add_argument("-A", "--approve", action="store_true",
317
205
help="Approve any current client request")
318
206
parser.add_argument("-D", "--deny", action="store_true",
319
207
help="Deny any current client request")
320
parser.add_argument("--check", action="store_true",
321
help="Run self-test")
322
208
parser.add_argument("client", nargs="*", help="Client name")
323
209
options = parser.parse_args()