From fa92f8efb052db5d54b4d7518c47383b03eaa356 Mon Sep 17 00:00:00 2001
From: "patchback[bot]" <45432694+patchback[bot]@users.noreply.github.com>
Date: Mon, 3 Jan 2022 19:43:47 +0100
Subject: [PATCH] slack - use UTF-8 charset in content-type header (#3933)
 (#3970)

* Use UTF-8 charset in content-type header

* Add changelog fragment

(cherry picked from commit a4ab85fd68d192e6c9900afa1dcfc7019af84793)

Co-authored-by: bluikko <14869000+bluikko@users.noreply.github.com>
---
 changelogs/fragments/3933-slack-charset-header.yaml | 2 ++
 plugins/modules/notification/slack.py               | 4 ++--
 2 files changed, 4 insertions(+), 2 deletions(-)
 create mode 100644 changelogs/fragments/3933-slack-charset-header.yaml

diff --git a/changelogs/fragments/3933-slack-charset-header.yaml b/changelogs/fragments/3933-slack-charset-header.yaml
new file mode 100644
index 0000000000..581fd7a2e8
--- /dev/null
+++ b/changelogs/fragments/3933-slack-charset-header.yaml
@@ -0,0 +1,2 @@
+bugfixes:
+  - slack - add ``charset`` to HTTP headers to avoid Slack API warning (https://github.com/ansible-collections/community.general/issues/3932).
diff --git a/plugins/modules/notification/slack.py b/plugins/modules/notification/slack.py
index 3023bd9d8a..bdc839f9a8 100644
--- a/plugins/modules/notification/slack.py
+++ b/plugins/modules/notification/slack.py
@@ -346,7 +346,7 @@ def build_payload_for_slack(text, channel, thread_id, username, icon_url, icon_e
 
 def get_slack_message(module, token, channel, ts):
     headers = {
-        'Content-Type': 'application/json',
+        'Content-Type': 'application/json; charset=UTF-8',
         'Accept': 'application/json',
         'Authorization': 'Bearer ' + token
     }
@@ -383,7 +383,7 @@ def do_notify_slack(module, domain, token, payload):
         slack_uri = OLD_SLACK_INCOMING_WEBHOOK % (domain, token)
 
     headers = {
-        'Content-Type': 'application/json',
+        'Content-Type': 'application/json; charset=UTF-8',
         'Accept': 'application/json',
     }
     if use_webapi: