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
|
# This code is part of Ansible, but is an independent component.
# This particular file snippet, and this file snippet only, is BSD licensed.
# Modules you write using this snippet, which is embedded dynamically by Ansible
# still belong to the author of the module, and may assign their own license
# to the complete work.
#
# Copyright (c) 2015 Peter Sprygada, <psprygada@ansible.com>
#
# Redistribution and use in source and binary forms, with or without modification,
# are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
# USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import re
import shlex
import time
from ansible.module_utils.parsing.convert_bool import (
BOOLEANS_TRUE,
BOOLEANS_FALSE,
)
from ansible.module_utils.six import string_types, text_type
from ansible.module_utils.six.moves import zip
def to_list(val):
if isinstance(val, (list, tuple)):
return list(val)
elif val is not None:
return [val]
else:
return list()
class FailedConditionsError(Exception):
def __init__(self, msg, failed_conditions):
super(FailedConditionsError, self).__init__(msg)
self.failed_conditions = failed_conditions
class FailedConditionalError(Exception):
def __init__(self, msg, failed_conditional):
super(FailedConditionalError, self).__init__(msg)
self.failed_conditional = failed_conditional
class AddCommandError(Exception):
def __init__(self, msg, command):
super(AddCommandError, self).__init__(msg)
self.command = command
class AddConditionError(Exception):
def __init__(self, msg, condition):
super(AddConditionError, self).__init__(msg)
self.condition = condition
class Cli(object):
def __init__(self, connection):
self.connection = connection
self.default_output = connection.default_output or "text"
self._commands = list()
@property
def commands(self):
return [str(c) for c in self._commands]
def __call__(self, commands, output=None):
objects = list()
for cmd in to_list(commands):
objects.append(self.to_command(cmd, output))
return self.connection.run_commands(objects)
def to_command(
self, command, output=None, prompt=None, response=None, **kwargs
):
output = output or self.default_output
if isinstance(command, Command):
return command
if isinstance(prompt, string_types):
prompt = re.compile(re.escape(prompt))
return Command(
command, output, prompt=prompt, response=response, **kwargs
)
def add_commands(self, commands, output=None, **kwargs):
for cmd in commands:
self._commands.append(self.to_command(cmd, output, **kwargs))
def run_commands(self):
responses = self.connection.run_commands(self._commands)
for resp, cmd in zip(responses, self._commands):
cmd.response = resp
# wipe out the commands list to avoid issues if additional
# commands are executed later
self._commands = list()
return responses
class Command(object):
def __init__(
self, command, output=None, prompt=None, response=None, **kwargs
):
self.command = command
self.output = output
self.command_string = command
self.prompt = prompt
self.response = response
self.args = kwargs
def __str__(self):
return self.command_string
class CommandRunner(object):
def __init__(self, module):
self.module = module
self.items = list()
self.conditionals = set()
self.commands = list()
self.retries = 10
self.interval = 1
self.match = "all"
self._default_output = module.connection.default_output
def add_command(
self, command, output=None, prompt=None, response=None, **kwargs
):
if command in [str(c) for c in self.commands]:
raise AddCommandError(
"duplicated command detected", command=command
)
cmd = self.module.cli.to_command(
command, output=output, prompt=prompt, response=response, **kwargs
)
self.commands.append(cmd)
def get_command(self, command, output=None):
for cmd in self.commands:
if cmd.command == command:
return cmd.response
raise ValueError("command '%s' not found" % command)
def get_responses(self):
return [cmd.response for cmd in self.commands]
def add_conditional(self, condition):
try:
self.conditionals.add(Conditional(condition))
except AttributeError as exc:
raise AddConditionError(msg=str(exc), condition=condition)
def run(self):
while self.retries > 0:
self.module.cli.add_commands(self.commands)
responses = self.module.cli.run_commands()
for item in list(self.conditionals):
if item(responses):
if self.match == "any":
return item
self.conditionals.remove(item)
if not self.conditionals:
break
time.sleep(self.interval)
self.retries -= 1
else:
failed_conditions = [item.raw for item in self.conditionals]
errmsg = (
"One or more conditional statements have not been satisfied"
)
raise FailedConditionsError(errmsg, failed_conditions)
class Conditional(object):
"""Used in command modules to evaluate waitfor conditions
"""
OPERATORS = {
"eq": ["eq", "=="],
"neq": ["neq", "ne", "!="],
"gt": ["gt", ">"],
"ge": ["ge", ">="],
"lt": ["lt", "<"],
"le": ["le", "<="],
"contains": ["contains"],
"matches": ["matches"],
}
def __init__(self, conditional, encoding=None):
self.raw = conditional
self.negate = False
try:
components = shlex.split(conditional)
key, val = components[0], components[-1]
op_components = components[1:-1]
if "not" in op_components:
self.negate = True
op_components.pop(op_components.index("not"))
op = op_components[0]
except ValueError:
raise ValueError("failed to parse conditional")
self.key = key
self.func = self._func(op)
self.value = self._cast_value(val)
def __call__(self, data):
value = self.get_value(dict(result=data))
if not self.negate:
return self.func(value)
else:
return not self.func(value)
def _cast_value(self, value):
if value in BOOLEANS_TRUE:
return True
elif value in BOOLEANS_FALSE:
return False
elif re.match(r"^\d+\.d+$", value):
return float(value)
elif re.match(r"^\d+$", value):
return int(value)
else:
return text_type(value)
def _func(self, oper):
for func, operators in self.OPERATORS.items():
if oper in operators:
return getattr(self, func)
raise AttributeError("unknown operator: %s" % oper)
def get_value(self, result):
try:
return self.get_json(result)
except (IndexError, TypeError, AttributeError):
msg = "unable to apply conditional to result"
raise FailedConditionalError(msg, self.raw)
def get_json(self, result):
string = re.sub(r"\[[\'|\"]", ".", self.key)
string = re.sub(r"[\'|\"]\]", ".", string)
parts = re.split(r"\.(?=[^\]]*(?:\[|$))", string)
for part in parts:
match = re.findall(r"\[(\S+?)\]", part)
if match:
key = part[: part.find("[")]
result = result[key]
for m in match:
try:
m = int(m)
except ValueError:
m = str(m)
result = result[m]
else:
result = result.get(part)
return result
def number(self, value):
if "." in str(value):
return float(value)
else:
return int(value)
def eq(self, value):
return value == self.value
def neq(self, value):
return value != self.value
def gt(self, value):
return self.number(value) > self.value
def ge(self, value):
return self.number(value) >= self.value
def lt(self, value):
return self.number(value) < self.value
def le(self, value):
return self.number(value) <= self.value
def contains(self, value):
return str(self.value) in value
def matches(self, value):
match = re.search(self.value, value, re.M)
return match is not None
|