slackpost.py: Write a script for posting to slack

The idea is that postfix will pipe an email message into this script,
which will then post the reply to slack.

Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>

slack/channels.py

@@ -3,6 +3,7 @@
 #
 from . import api
 from . import auth
+from . import chat
 from . import users
 from datetime import datetime
 
@@ -35,6 +36,9 @@ class Channel:
     def name(self):
         return self.__name
 
+    def post(self, text):
+        chat.postMessage(self.__id, text)
+
     def unread_count(self):
         if self.__unread == None:
             self.fetch_info()

slack/chat.py

@@ -0,0 +1,11 @@
+#
+# Copyright 2015 (c) Anna Schumaker.
+#
+from . import api
+from . import auth
+from urllib import request
+
+def postMessage(channel, text):
+    post = request.quote(text)
+    api.call("chat.postMessage", token = auth.token(), channel = channel,
+             text = post, as_user = True, parse = "full")

slackpost.py

@@ -0,0 +1,29 @@
+#!/usr/bin/python
+# Copyright 2015 (c) Anna Schumaker.
+#
+
+import slack
+import sys
+from email.parser import Parser
+
+headers = Parser().parsestr(sys.stdin.read())
+
+if headers['from'] != "Anna Schumaker <schumaker.anna@gmail.com>":
+    sys.exit(1)
+
+
+# Determine which channel to post to
+channel = None
+subject = headers['subject']
+ch_name = subject.split("[%s]" % slack.team())[-1].strip()
+
+for c in slack.channels.list():
+    if c.name() == ch_name:
+        channel = c
+        break
+
+if channel == None:
+    sys.exit(1)
+
+text = headers.get_payload().split("\n")[0]
+channel.post(text)