lib/muff/muffcmds.py

   1 """Command objects for the MUFF Engine"""
   2
   3 # Copyright (c) 2005 mudpy, Jeremy Stanley <fungi@yuggoth.org>
   4 # All rights reserved.
   5 #
   6 # Redistribution and use in source and binary forms, with or without
   7 # modification, are permitted provided that the following conditions
   8 # are met:
   9 #
  10 #    - Redistributions of source code must retain the above copyright
  11 #      notice, this list of conditions and the following disclaimer.
  12 #    - Redistributions in binary form must reproduce the above
  13 #      copyright notice, this list of conditions and the following
  14 #      disclaimer in the documentation and/or other materials provided
  15 #      with the distribution.
  16 #
  17 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  18 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  19 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  20 # FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  21 # COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  22 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  23 # BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  24 # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  25 # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  27 # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28 # POSSIBILITY OF SUCH DAMAGE.
  29
  30 import ConfigParser
  31 import md5
  32 import os
  33 import random
  34 import string
  35
  36 import muff
  37 for module in muff.__all__:
  38         exec("import " + module)
  39
  40 try:
  41         if muffconf.config_data.get("general", "command_path"):
  42                 pass
  43 except AttributeError:
  44         reload(muffconf)
  45 command_path = muffconf.config_data.get("general", "command_path")
  46 command_files = []
  47 for each_file in os.listdir(command_path):
  48         command_files.append(command_path + "/" + each_file)
  49 command_data = ConfigParser.SafeConfigParser()
  50 command_data.read(command_files)
  51 command_list = command_data.sections()
  52
  53 def handle_user_input(user, input):
  54         if user.state == "active": handler_active(user, input)
  55         elif user.state == "entering account name": handler_entering_account_name(user, input)
  56         elif user.state == "checking password": handler_checking_password(user, input)
  57         elif user.state == "checking new account name": handler_checking_new_account_name(user, input)
  58         elif user.state == "entering new password": handler_entering_new_password(user, input)
  59         elif user.state == "verifying new password": handler_verifying_new_password(user, input)
  60         else: handler_fallthrough(user, input)
  61         user.menu_seen = False
  62
  63 def handler_entering_account_name(user, input):
  64         if input:
  65                 user.proposed_name = string.split(input)[0].lower()
  66                 user.get_passhash()
  67                 if user.passhash:
  68                         user.state = "checking password"
  69                 else:
  70                         user.name = user.proposed_name
  71                         user.proposed_name = None
  72                         user.load()
  73                         user.state = "checking new account name"
  74         else:
  75                 command_quit(user)
  76
  77 def handler_checking_password(user, input):
  78         if md5.new(user.proposed_name + input).hexdigest() == user.passhash:
  79                 user.name = user.proposed_name
  80                 user.proposed_name = None
  81                 user.load()
  82                 user.state = "active"
  83         elif user.password_tries < muffconf.config_data.getint("general", "password_tries"):
  84                 user.password_tries += 1
  85                 user.error = "incorrect"
  86         else:
  87                 user.send("$(eol)$(red)Too many failed password attempts...$(nrm)$(eol)")
  88                 command_quit(user)
  89
  90 def handler_checking_new_account_name(user, input):
  91         if input:
  92                 choice = input.lower()[0]
  93         else:
  94                 choice = muffmenu.get_default(user)
  95         if choice == "d":
  96                 command_quit(user)
  97         elif choice == "g":
  98                 user.state = "entering account name"
  99         elif choice == "n":
 100                 user.state = "entering new password"
 101         else:
 102                 user.error = "default"
 103
 104 def handler_entering_new_password(user, input):
 105         if len(input) > 6 and len(filter(lambda x: x>="0" and x<="9", input)) and len(filter(lambda x: x>="A" and x<="Z", input)) and len(filter(lambda x: x>="a" and x<="z", input)):
 106                 user.passhash = md5.new(user.name + input).hexdigest()
 107                 user.state = "verifying new password"
 108         elif user.password_tries < muffconf.config_data.getint("general", "password_tries"):
 109                 user.password_tries += 1
 110                 user.error = "weak"
 111         else:
 112                 user.send("$(eol)$(red)Too many failed password attempts...$(nrm)$(eol)")
 113                 command_quit(user)
 114
 115 def handler_verifying_new_password(user, input):
 116         if md5.new(user.name + input).hexdigest() == user.passhash:
 117                 user.state = "active"
 118         elif user.password_tries < muffconf.config_data.getint("general", "password_tries"):
 119                 user.password_tries += 1
 120                 user.error = "differs"
 121                 user.state = "entering new password"
 122         else:
 123                 user.send("$(eol)$(red)Too many failed password attempts...$(nrm)$(eol)")
 124                 command_quit(user)
 125
 126 def handler_active(user, input):
 127         if not user.authenticated: user.authenticated = True
 128         try:
 129                 inputlist = string.split(input, None, 1)
 130                 command = inputlist[0]
 131         except:
 132                 command = input
 133         try:
 134                 parameters = inputlist[1]
 135         except:
 136                 parameters = ""
 137         command = command.lower()
 138         if not command: command_null(user, command, parameters)
 139         elif command in command_list: exec("command_" + command + "(user, command, parameters)")
 140         else: command_error(user, command, parameters)
 141
 142 def handler_fallthrough(user, input):
 143         if input:
 144                 print("User \"" + user + "\" entered \"" + input + "\" while in unknown state \"" + user.state + "\".")
 145
 146 def command_halt(user, command="", parameters=""):
 147         muffmisc.broadcast(user.name + " halts the world.")
 148         for each_user in muffvars.userlist:
 149                 each_user.save()
 150         muffvars.terminate_world = True
 151
 152 def command_reload(user, command="", parameters=""):
 153         user.send("Reloading all code modules.")
 154         muffvars.reload_modules = True
 155
 156 def command_quit(user, command="", parameters=""):
 157         user.save()
 158         user.connection.close()
 159         user.remove()
 160
 161 def command_help(user, command="", parameters=""):
 162         if parameters:
 163                 if parameters in command_list:
 164                         if command_data.has_section(parameters):
 165                                 try:
 166                                         description = command_data.get(parameters, "description")
 167                                 except:
 168                                         description = "(no short description provided)"
 169                                 output = "$(grn)" + parameters + "$(nrm) - " + command_data.get(parameters, "description") + "$(eol)$(eol)"
 170                                 try:
 171                                         help_text = command_data.get(parameters, "help")
 172                                 except:
 173                                         help_text = "No help is provided for this command."
 174                                 output += help_text
 175                         else:
 176                                 output = "There is no information on that command."
 177                 else:
 178                         output = "That is not an available command."
 179
 180         else:
 181                 output = "These are the commands available to you:$(eol)$(eol)"
 182                 sorted_commands = command_list
 183                 sorted_commands.sort()
 184                 for item in sorted_commands:
 185                         try:
 186                                 description = command_data.get(item, "description")
 187                         except:
 188                                 description = "(no short description provided)"
 189                         output += "   $(grn)" + item + "$(nrm) - " + command_data.get(item, "description") + "$(eol)"
 190                 output += "$(eol)Enter \"help COMMAND\" for help on a command named \"COMMAND\"."
 191         user.send(output)
 192
 193 def command_say(user, command="", parameters=""):
 194         message = parameters.strip("\"'`").capitalize()
 195         if parameters:
 196                 if message[-1] == "!":
 197                         action = "exclaim"
 198                 elif message[-1] in [ ",", "-", ":", ";" ]:
 199                         action = "begin"
 200                 elif message[-3:] == "...":
 201                         action = "muse"
 202                 elif message[-1] == "?":
 203                         action = "ask"
 204                 else:
 205                         action = "say"
 206                         message += "."
 207                 capitalization = [ "i", "i'd", "i'll" ]
 208                 for word in capitalization:
 209                         message = message.replace(" " + word + " ", " " + word.capitalize() + " ")
 210                 muffmisc.broadcast(user.name + " " + action + "s, \"" + message + "\"")
 211         else:
 212                 user.send("What do you want to say?")
 213
 214 def command_null(user, command="", parameters=""):
 215         pass
 216
 217 def command_error(user, command="", parameters=""):
 218         if random.random() > 0.1:
 219                 message = "I'm not sure what \"" + command
 220                 if parameters:
 221                         message += " " + parameters
 222                 message += "\" means..."
 223         else:
 224                 message = "Arglebargle, glop-glyf!?!"
 225         user.send(message)
 226