-
Notifications
You must be signed in to change notification settings - Fork 22
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
12 changed files
with
2,050 additions
and
1,260 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,136 @@ | ||
| import json | ||
| import logging | ||
| import os | ||
| import urllib.request | ||
| import boto3 | ||
|
|
||
| wafv2 = boto3.client('wafv2') | ||
|
|
||
| HOOK_URL = os.environ['WebhookUrl'] | ||
| MESSENGER = os.environ['Messenger'] | ||
|
|
||
| logger = logging.getLogger() | ||
| logger.setLevel(logging.INFO) | ||
|
|
||
|
|
||
| def get_latest_default_rule_set_version(rule_set_name): | ||
| try: | ||
| response = wafv2.list_available_managed_rule_group_versions(Name=rule_set_name, Scope='REGIONAL', VendorName='AWS') | ||
| DefaultVersion = response.get('CurrentDefaultVersion') | ||
| return DefaultVersion | ||
| except Exception as e: | ||
| print('Error getting the default version for the rule set:', str(e)) | ||
| return None | ||
|
|
||
|
|
||
| def format_slack_message(data, latest_default_rule_set_version): | ||
| payload = { | ||
| 'username': f"WAF {data['Type']}", | ||
| 'icon_emoji': ':managedrule:', | ||
| 'text': f"{data['Subject']}", | ||
| 'attachments': [ | ||
| { | ||
| 'fallback': "Detailed information on {data['Type']}.", | ||
| 'color': 'green', | ||
| 'title': data['Subject'], | ||
| 'text': data['Message'], | ||
| 'fields': [ | ||
| { | ||
| 'title': 'Managed Rule Group', | ||
| 'value': data['MessageAttributes']['managed_rule_group']['Value'], | ||
| 'short': True | ||
| }, | ||
| { | ||
| 'title': 'Default Version', | ||
| 'value': latest_default_rule_set_version, | ||
| 'short': True | ||
| }, | ||
| { | ||
| 'title': 'Info', | ||
| 'value': "AWS WAF sets the default version to the static version recommended by the provider. Default version is automatically updated when the provider recommends a new version.", | ||
| 'short': False | ||
| } | ||
| ] | ||
| } | ||
| ] | ||
| } | ||
| return payload | ||
|
|
||
|
|
||
| def format_teams_message(data, latest_default_rule_set_version): | ||
| message = { | ||
| "type":"message", | ||
| "attachments":[ | ||
| { | ||
| "contentType":"application/vnd.microsoft.card.adaptive", | ||
| "contentUrl": "", | ||
| "content":{ | ||
| "$schema": "http://adaptivecards.io/schemas/adaptive-card.json", | ||
| "type": "AdaptiveCard", | ||
| "msteams": { | ||
| "width": "Full" | ||
| }, | ||
| "version": "1.4", | ||
| "body": [ | ||
| { | ||
| "type": "TextBlock", | ||
| "text": f"{data['Subject']}", | ||
| "size": "Large", | ||
| "weight": "Bolder", | ||
| "wrap": True | ||
| }, | ||
| { | ||
| "type": "TextBlock", | ||
| "text": f"{data['Message']}", | ||
| "separator": True, | ||
| "wrap": True | ||
| }, | ||
| { | ||
| "type": "FactSet", | ||
| "facts": [ | ||
| { | ||
| "title": "Managed Rule Group", | ||
| "value": data['MessageAttributes']['managed_rule_group']['Value'] | ||
| }, | ||
| { | ||
| "title": "Default Version", | ||
| "value": latest_default_rule_set_version | ||
| } | ||
| ], | ||
| "separator": True | ||
| }, | ||
| { | ||
| "type": "TextBlock", | ||
| "text": f"AWS WAF sets the default version to the static version recommended by the provider. Default version is automatically updated when the provider recommends a new version.", | ||
| "separator": True, | ||
| "wrap": True | ||
| } | ||
| ] | ||
| } | ||
| } | ||
| ] | ||
| } | ||
| return message | ||
|
|
||
|
|
||
| def notify(url, payload): | ||
| data = json.dumps(payload).encode('utf-8') | ||
| method = 'POST' | ||
| headers = {'Content-Type': 'application/json'} | ||
|
|
||
| request = urllib.request.Request(url, data = data, method = method, headers = headers) | ||
| with urllib.request.urlopen(request) as response: | ||
| return response.read().decode('utf-8') | ||
|
|
||
|
|
||
| def lambda_handler(event, context): | ||
| logger.info("Message: " + str(event)) | ||
| for(record) in event['Records']: | ||
| default_version = get_latest_default_rule_set_version(record['Sns']['MessageAttributes']['managed_rule_group']['Value']) | ||
| if(MESSENGER == "Slack"): | ||
| payload = format_slack_message(record['Sns'], default_version) | ||
| elif(MESSENGER == "Teams"): | ||
| payload = format_teams_message(record['Sns'], default_version) | ||
| response = notify(HOOK_URL, payload) | ||
| print(response) | ||
|
|
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.