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slack: fix handling of html entities and escaping (#3032)

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for < > & ' and "
This commit is contained in:
René Moser 2016-10-03 20:05:10 +02:00 committed by Matt Clay
parent d4b94ec6bb
commit d2eeabf129
1 changed files with 37 additions and 5 deletions
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42
lib/ansible/modules/extras/notification/slack.py
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@ -1,6 +1,7 @@
#!/usr/bin/python
# -*- coding: utf-8 -*-
# (c) 2016, René Moser <mail@renemoser.net>
# (c) 2015, Stefan Berggren <nsg@nsg.cc>
# (c) 2014, Ramon de la Fuente <ramon@delafuente.nl>
#
@ -154,7 +155,7 @@ EXAMPLES = """
value: "load average: 5,16, 4,64, 2,43"
short: "true"
- name: Send notification message via Slack (deprecated API using domian)
- name: Send notification message via Slack (deprecated API using domain)
local_action:
module: slack
domain: future500.slack.com
@ -166,13 +167,27 @@ EXAMPLES = """
OLD_SLACK_INCOMING_WEBHOOK = 'https://%s/services/hooks/incoming-webhook?token=%s'
SLACK_INCOMING_WEBHOOK = 'https://hooks.slack.com/services/%s'
# See https://api.slack.com/docs/message-formatting#how_to_escape_characters
# Escaping quotes and apostrophe however is related to how Ansible handles them.
html_escape_table = {
'&': "&amp;",
'>': "&gt;",
'<': "&lt;",
'"': "\"",
"'": "\'",
}
def html_escape(text):
'''Produce entities within text.'''
return "".join(html_escape_table.get(c,c) for c in text)
def build_payload_for_slack(module, text, channel, username, icon_url, icon_emoji, link_names, parse, color, attachments):
payload = {}
if color == "normal" and text is not None:
payload = dict(text=text)
payload = dict(text=html_escape(text))
elif text is not None:
# With a custom color we have to set the message as attachment, and explicitely turn markdown parsing on for it.
payload = dict(attachments=[dict(text=text, color=color, mrkdwn_in=["text"])])
payload = dict(attachments=[dict(text=html_escape(text), color=color, mrkdwn_in=["text"])])
if channel is not None:
if (channel[0] == '#') or (channel[0] == '@'):
payload['channel'] = channel
@ -194,12 +209,24 @@ def build_payload_for_slack(module, text, channel, username, icon_url, icon_emoj
payload['attachments'] = []
if attachments is not None:
keys_to_escape = [
'title',
'text',
'author_name',
'pretext',
'fallback',
]
for attachment in attachments:
for key in keys_to_escape:
if key in attachment:
attachment[key] = html_escape(attachment[key])
if 'fallback' not in attachment:
attachment['fallback'] = attachment['text']
payload['attachments'].append(attachment)
payload="payload=" + module.jsonify(payload)
payload=module.jsonify(payload)
return payload
def do_notify_slack(module, domain, token, payload):
@ -211,7 +238,12 @@ def do_notify_slack(module, domain, token, payload):
module.fail_json(msg="Slack has updated its webhook API. You need to specify a token of the form XXXX/YYYY/ZZZZ in your playbook")
slack_incoming_webhook = OLD_SLACK_INCOMING_WEBHOOK % (domain, token)
response, info = fetch_url(module, slack_incoming_webhook, data=payload)
headers = {
'Content-Type': 'application/json',
'Accept': 'application/json',
}
response, info = fetch_url(module=module, url=slack_incoming_webhook, headers=headers, method='POST', data=payload)
if info['status'] != 200:
obscured_incoming_webhook = SLACK_INCOMING_WEBHOOK % ('[obscured]')
module.fail_json(msg=" failed to send %s to %s: %s" % (payload, obscured_incoming_webhook, info['msg']))