old_contents: from app import app, db
  from flask import request, json
  from api import Teli
  from models import User, DID
  import re
  
  teli = Teli(app.config['TELI_TOKEN'], app.config['TELI_DID'])
  
  
  @app.route('/', methods=['POST'])
  def main():
      # subscribe <nick>
      message = request.form.get('message').split(' ')
      if message[0].lower() == 'subscribe' and len(message) >= 2:
          return subscribe_user(message, request.form.get('source'))
      return json.dumps({'status': 'Call received'})
  
  def subscribe_user(message, src):
      nick = re.sub('[^A-Za-z0-9_-]+', '', message[1])
      if len(nick) >= 2:
          # Grab the first available DID
          did = DID.query.filter_by(user_id=None).first()
          if did:
              new_user = User(nick, src, did)
              db.session.add(new_user)
              db.session.commit()
              teli.send_sms(
                      int(new_user.user_phone),
                      "Welcome to Mojave SMS IRC for DEFCON 24!\nWritten by @__tux for the Mojave!",
                      src=int(new_user.did.number))
      return json.dumps({'status': 'Call received'})
  
new_contents: from app import app, db
  from flask import request, json
  from api import Teli
  from models import User, DID
  import re
  
  teli = Teli(app.config['TELI_TOKEN'], app.config['TELI_DID'])
  
  
  @app.route('/', methods=['POST'])
  def main():
      # subscribe <nick>
      message = request.form.get('message').split(' ')
      sender = User.query.filter_by(user_phone=request.form.get('source')).first()
      if sender is None:
          if message[0].lower() == '@subscribe' and len(message) >= 2:
              return subscribe_user(message, request.form.get('source'))
          else:
              teli.send_sms(int(request.form.get('source')),
                      "Subscribe to the Mojave SMS IRC by texting '@subscribe <nick>'")
          return json.dumps({'status': 'Call received'})
      else:
          elif message[0].lower() == '@unsub':
              return unsub_user(sender)
          elif message[0].lower() == '@resub':
              return resub_user(sender)
          elif message[0].lower() == '@help':
              return send_help(sender)
      return json.dumps({'status': 'Call received'})
  
  
  def subscribe_user(message, src):
      nick = re.sub('[^A-Za-z0-9_-]+', '', message[1])
      if len(nick) >= 2:
          # Grab the first available DID
          did = DID.query.filter_by(user_id=None).first()
          if did:
              new_user = User(nick, src, did)
              db.session.add(new_user)
              db.session.commit()
              teli.send_sms(int(new_user.user_phone),
                      "Welcome to Mojave SMS IRC for DEFCON 24!\nWritten by @__tux for the Mojave!\nText '@help' for commands.",
                      src=int(new_user.did.number))
      return json.dumps({'status': 'Call received'})
  
  
  def unsub_user(user):
      user.is_subbed = False
      if not user.is_admin:
          user.did = None # Release the DID for others, unless you're an admin
      db.session.add(user)
      db.session.commit()
      return json.dumps({'status': 'Call received'})
  
  
  def resub_user(user):
      # Admins get to keep their DID
      if not user.is_admin:
          did = DID.query.filter_by(user=None).first()
          if did is None:
              teli.send_sms(int(user.user_phone), "This chat is full, try again later.")
              return json.dumps({'status': 'Call received'})
          else:
              user.did = did
      user.is_subbed = True
      teli.send_sms(int(user.user_phone), "Rejoined chat!")
      return json.dumps({'status': 'Call received'})
  
  
  def send_help(user):
      teli.send_sms(int(user.user_phone),
              "@help - Displays this menu\n@<nick> <message> - Private message user\n@unsub - Unsubs from chat\n@resub - Resubscribes to chat\n@about - Displays info about the software")
      return json.dumps({'status': 'Call received'})
  
  
  def relay_sms(message, sender): 
      if sender.is_subbed:
          for user in User.query.filter_by(is_subbed=True):
              # Don't send the sender the same message
              if sender != user:
                  message = ' '.join(message)
                  teli.send_sms(int(user.user_phone), "<{}> {}".format(nick, message),
                          src=int(user.did.number))
      else:
          teli.send_sms(int(sender.user_phone),
                  "You are not subscribed. Text 'subscribe' to rejoin the chat.",
                  src=int(sender.did.number))
      return json.dumps({'status': 'Call received'})
  
subject: Add basic chat functions