Allow everyone to issue track moderator commands

By default, allow anyone in channel to issue track moderation
commands (as that greatly simplifies administration). Add
two admin commands to allow toggling that behavior on and off.

Change-Id: I5dc95a1ea14b49c1882bd715b8fbdc3344867b64

README.rst

@@ -16,7 +16,10 @@ with several sections of information:
 Track moderators commands
 =========================
 
-You have to have voice in the channel (+v) to send commands to the ptgbot.
+By default the bot allows anyone in the channel to issue track moderation
+commands. However note that it is possible for admins to restrict access
+to people who have voice in the channel (+v).
+
 Commands follow the following format::
 
   #TRACKNAME COMMAND [PARAMETERS]
@@ -133,6 +136,12 @@ You have to be a channel operator (+o) to use admin commands.
 ~reload
   Resets the database entirely (reloads from configuration)
 
+~requirevoice
+  Requires that users are voiced (+v) to issue track moderation commands
+
+~alloweveryone
+  Allows everyone in the channel to issue track moderation commands
+
 
 Local testing
 =============

ptgbot/bot.py

@@ -110,8 +110,9 @@ class PTGBot(irc.bot.SingleServerIRCBot):
         chan = e.target
 
         if msg.startswith('#'):
-            if not (self.channels[chan].is_voiced(nick) or
-                    self.channels[chan].is_oper(nick)):
+            if (self.data.is_voice_required() and not
+                    (self.channels[chan].is_voiced(nick) or
+                     self.channels[chan].is_oper(nick))):
                 self.send(chan, "%s: Need voice to issue commands" % (nick,))
                 return
 
@@ -171,6 +172,10 @@ class PTGBot(irc.bot.SingleServerIRCBot):
                 self.data.unbook(room, timeslot)
             elif command == 'newday':
                 self.data.new_day_cleanup()
+            elif command == 'requirevoice':
+                self.data.require_voice()
+            elif command == 'alloweveryone':
+                self.data.allow_everyone()
             elif command == 'list':
                 self.send_track_list(chan)
             elif command in ('clean', 'add', 'del'):

ptgbot/db.py

@@ -26,7 +26,7 @@ import random
 class PTGDataBase():
 
     BASE = {'tracks': [], 'slots': {}, 'now': {}, 'next': {}, 'colors': {},
-            'location': {}, 'scheduled': {}, 'additional': {}}
+            'location': {}, 'scheduled': {}, 'additional': {}, 'voice': 0}
 
     def __init__(self, config):
         self.filename = config['db_filename']
@@ -167,6 +167,17 @@ class PTGDataBase():
                 self.data['additional'][room][timeslot] = ""
         self.save()
 
+    def is_voice_required(self):
+        return self.data['voice'] == 1
+
+    def require_voice(self):
+        self.data['voice'] = 1
+        self.save()
+
+    def allow_everyone(self):
+        self.data['voice'] = 0
+        self.save()
+
     def new_day_cleanup(self):
         self.data['now'] = {}
         self.data['next'] = {}