mirror of https://github.com/ansible/ansible.git
Create common waf module for use by future waf modules (#33003)
Move waf common code into waf module_utils. This will be used by future waf modulespull/33728/head
Will Thames
7 years ago
committed by
ansibot
parent
a95894dfcb
commit
3283f46ffa
@ -0,0 +1,182 @@
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# Copyright (c) 2017 Will Thames
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#
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# This code is part of Ansible, but is an independent component.
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# This particular file snippet, and this file snippet only, is BSD licensed.
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# Modules you write using this snippet, which is embedded dynamically by Ansible
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# still belong to the author of the module, and may assign their own license
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# to the complete work.
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#
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# Redistribution and use in source and binary forms, with or without modification,
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# are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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# USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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"""
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This module adds shared support for Web Application Firewall modules
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"""
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from ansible.module_utils.ec2 import camel_dict_to_snake_dict, AWSRetry
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try:
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import botocore
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except ImportError:
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pass # caught by imported HAS_BOTO3
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MATCH_LOOKUP = {
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'byte': {
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'method': 'byte_match_set',
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'conditionset': 'ByteMatchSet',
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'conditiontuple': 'ByteMatchTuple',
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'type': 'ByteMatch'
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},
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'geo': {
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'method': 'geo_match_set',
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'conditionset': 'GeoMatchSet',
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'conditiontuple': 'GeoMatchConstraint',
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'type': 'GeoMatch'
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},
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'ip': {
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'method': 'ip_set',
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'conditionset': 'IPSet',
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'conditiontuple': 'IPSetDescriptor',
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'type': 'IPMatch'
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},
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'regex': {
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'method': 'regex_match_set',
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'conditionset': 'RegexMatchSet',
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'conditiontuple': 'RegexMatchTuple',
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'type': 'RegexMatch'
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},
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'size': {
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'method': 'size_constraint_set',
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'conditionset': 'SizeConstraintSet',
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'conditiontuple': 'SizeConstraint',
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'type': 'SizeConstraint'
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},
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'sql': {
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'method': 'sql_injection_match_set',
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'conditionset': 'SqlInjectionMatchSet',
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'conditiontuple': 'SqlInjectionMatchTuple',
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'type': 'SqlInjectionMatch',
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},
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'xss': {
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'method': 'xss_match_set',
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'conditionset': 'XssMatchSet',
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'conditiontuple': 'XssMatchTuple',
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'type': 'XssMatch'
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},
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}
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@AWSRetry.backoff(tries=5, delay=5, backoff=2.0)
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def get_rule_with_backoff(client, rule_id):
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return client.get_rule(RuleId=rule_id)['Rule']
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@AWSRetry.backoff(tries=5, delay=5, backoff=2.0)
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def get_byte_match_set_with_backoff(client, byte_match_set_id):
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return client.get_byte_match_set(ByteMatchSetId=byte_match_set_id)['ByteMatchSet']
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@AWSRetry.backoff(tries=5, delay=5, backoff=2.0)
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def get_ip_set_with_backoff(client, ip_set_id):
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return client.get_ip_set(IPSetId=ip_set_id)['IPSet']
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@AWSRetry.backoff(tries=5, delay=5, backoff=2.0)
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def get_size_constraint_set_with_backoff(client, size_constraint_set_id):
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return client.get_size_constraint_set(SizeConstraintSetId=size_constraint_set_id)['SizeConstraintSet']
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@AWSRetry.backoff(tries=5, delay=5, backoff=2.0)
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def get_sql_injection_match_set_with_backoff(client, sql_injection_match_set_id):
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return client.get_sql_injection_match_set(SqlInjectionMatchSetId=sql_injection_match_set_id)['SqlInjectionMatchSet']
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@AWSRetry.backoff(tries=5, delay=5, backoff=2.0)
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def get_xss_match_set_with_backoff(client, xss_match_set_id):
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return client.get_xss_match_set(XssMatchSetId=xss_match_set_id)['XssMatchSet']
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def get_rule(client, module, rule_id):
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try:
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rule = get_rule_with_backoff(client, rule_id)
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except (botocore.exceptions.ClientError, botocore.exceptions.BotoCoreError) as e:
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module.fail_json_aws(e, msg="Couldn't obtain waf rule")
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match_sets = {
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'ByteMatch': get_byte_match_set_with_backoff,
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'IPMatch': get_ip_set_with_backoff,
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'SizeConstraint': get_size_constraint_set_with_backoff,
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'SqlInjectionMatch': get_sql_injection_match_set_with_backoff,
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'XssMatch': get_xss_match_set_with_backoff
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}
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if 'Predicates' in rule:
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for predicate in rule['Predicates']:
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if predicate['Type'] in match_sets:
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predicate.update(match_sets[predicate['Type']](client, predicate['DataId']))
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# replaced by Id from the relevant MatchSet
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del(predicate['DataId'])
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return rule
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@AWSRetry.backoff(tries=5, delay=5, backoff=2.0)
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def get_web_acl_with_backoff(client, web_acl_id):
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return client.get_web_acl(WebACLId=web_acl_id)['WebACL']
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def get_web_acl(client, module, web_acl_id):
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try:
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web_acl = get_web_acl_with_backoff(client, web_acl_id)
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except (botocore.exceptions.ClientError, botocore.exceptions.BotoCoreError) as e:
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module.fail_json_aws(e, msg="Couldn't obtain web acl")
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if web_acl:
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try:
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for rule in web_acl['Rules']:
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rule.update(get_rule(client, module, rule['RuleId']))
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except (botocore.exceptions.ClientError, botocore.exceptions.BotoCoreError) as e:
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module.fail_json_aws(e, msg="Couldn't obtain web acl rule")
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return camel_dict_to_snake_dict(web_acl)
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@AWSRetry.backoff(tries=5, delay=5, backoff=2.0)
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def list_rules_with_backoff(client):
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paginator = client.get_paginator('list_rules')
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return paginator.paginate().build_full_result()['Rules']
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@AWSRetry.backoff(tries=5, delay=5, backoff=2.0)
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def list_web_acls_with_backoff(client):
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paginator = client.get_paginator('list_web_acls')
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return paginator.paginate().build_full_result()['WebACLs']
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def list_web_acls(client, module):
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try:
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return list_web_acls_with_backoff(client)
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except (botocore.exceptions.ClientError, botocore.exceptions.BotoCoreError) as e:
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module.fail_json_aws(e, msg="Couldn't obtain web acls")
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def get_change_token(client, module):
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try:
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token = client.get_change_token()
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return token['ChangeToken']
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except (botocore.exceptions.ClientError, botocore.exceptions.BotoCoreError) as e:
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module.fail_json_aws(e, msg="Couldn't obtain change token")
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