Add mastodon support

Add very simple mastodon support.  Basically send a request with a
bearer token.

Change-Id: I345dfa5d68a5cbf4035db85be9883592f143dd93

statusbot/bot.py

@@ -52,6 +52,11 @@ consumer_key=consumer_key
 consumer_secret=consumer_secret
 access_token_key=access_token_key
 access_token_secret=access_token_secret
+
+[mastodon]
+host=https://example.com
+token='mastodon_bearer_token'
+
 """
 
 import argparse
@@ -294,6 +299,48 @@ class Tweet(UpdateInterface):
             self.update('\u2705\ufe0f Everything back to normal')
 
 
+class Toot(UpdateInterface):
+    log = logging.getLogger("statusbot.toot")
+
+    def __init__(self, config):
+        self.host = config.get('mastodon', 'host')
+        self.token = config.get('mastodon', 'token')
+
+    def update(self, msg):
+        # NOTE(ianw) Toots are 500 characters, which should be enough.
+        # Figure out chaining some other time
+        url = '%s/api/v1/statuses' % (self.host)
+        data = {'status': msg}
+
+        r = requests.post(url, data=data,
+                          headers={
+                              'Authorization': 'Bearer %s' % (self.token)})
+        # not sure what to check for...
+        if r.status_code == 200:
+            json_data = r.json()
+            self.log('Tooted id: %s' % json_data['id'])
+        else:
+            self.log('Toot failed: %s' % r.status_code)
+
+    def alert(self, msg=None):
+        # warning sign
+        self.update('\u26A0\ufe0f ' + msg)
+
+    def notice(self, msg=None):
+        # pushpin (notice board)
+        self.update('\U0001f4cc ' + msg)
+
+    def log(self, msg=None):
+        # wood (log)
+        self.update('\U0001fab5 ' + msg)
+
+    def ok(self, msg=None):
+        if msg:
+            self.update('\u2705\ufe0f ' + msg)
+        else:
+            self.update('\u2705\ufe0f Everything back to normal')
+
+
 class StatusPage(UpdateInterface):
     alert_re = re.compile(r'{{CI Alert\|(.*?)}}')
     item_re = re.compile(r'^\* (.*)$')
@@ -579,6 +626,8 @@ def _main(configpath):
     thankslog = ThanksPage(config, backend)
     if config.has_section('twitter'):
         publishers.append(Tweet(config))
+    if config.has_section('mastodon'):
+        publishers.append(Toot(config))
 
     if config.has_option('ircbot', 'use_sasl'):
         use_sasl = config.getboolean('ircbot', 'use_sasl')