"""Command objects for the MUFF Engine"""
-# Copyright (c) 2005 mudpy, Jeremy Stanley <fungi@yuggoth.org>
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# - Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-# - Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following
-# disclaimer in the documentation and/or other materials provided
-# with the distribution.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
+# Copyright (c) 2005 mudpy, Jeremy Stanley <fungi@yuggoth.org>, all rights reserved.
+# Licensed per terms in the LICENSE file distributed with this software.
+# command data like descriptions, help text, limits, et cetera, are stored in
+# ini-style configuration files supported by the ConfigParser module
import ConfigParser
+
+# md5 hashing is used for verification of account passwords
import md5
+
+# the os module is used to we can get a directory listing and build lists of
+# multiple config files in one directory
import os
+
+# the random module is useful for creating random conditional output
import random
+
+# string.split is used extensively to tokenize user input (break up command
+# names and parameters)
import string
+# bit of a hack to load all modules in the muff package
import muff
for module in muff.__all__:
exec("import " + module)
-try:
- if muffconf.config_data.get("general", "command_path"):
- pass
-except AttributeError:
- reload(muffconf)
-command_path = muffconf.config_data.get("general", "command_path")
-command_files = []
-for each_file in os.listdir(command_path):
- command_files.append(command_path + "/" + each_file)
-command_data = ConfigParser.SafeConfigParser()
-command_data.read(command_files)
-command_list = command_data.sections()
-
-def handle_user_input(user, input):
- if user.state == "active": handler_active(user, input)
- elif user.state == "entering account name": handler_entering_account_name(user, input)
- elif user.state == "checking password": handler_checking_password(user, input)
- elif user.state == "checking new account name": handler_checking_new_account_name(user, input)
- elif user.state == "entering new password": handler_entering_new_password(user, input)
- elif user.state == "verifying new password": handler_verifying_new_password(user, input)
- else: handler_fallthrough(user, input)
+def handle_user_input(user):
+ """The main handler, branches to a state-specific handler."""
+
+ # check to make sure the state is expected, then call that handler
+ if "handler_" + user.state in globals():
+ exec("handler_" + user.state + "(user)")
+ else:
+ generic_menu_handler(user)
+
+ # since we got input, flag that the menu/prompt needs to be redisplayed
user.menu_seen = False
-def handler_entering_account_name(user, input):
- if input:
- user.proposed_name = string.split(input)[0].lower()
- user.get_passhash()
- if user.passhash:
- user.state = "checking password"
+ # if the user's client echo is off, send a blank line for aesthetics
+ if not user.echoing: user.send("", "")
+
+def generic_menu_handler(user):
+ """A generic menu choice handler."""
+
+ # get a lower-case representation of the next line of input
+ if user.input_queue:
+ choice = user.input_queue.pop(0)
+ if choice: choice = choice.lower()
+ else: choice = ""
+
+ # run any script related to this choice
+ exec(muffmenu.get_choice_action(user, choice))
+
+ # move on to the next state or return an error
+ new_state = muffmenu.get_choice_branch(user, choice)
+ if new_state: user.state = new_state
+ else: user.error = "default"
+
+def handler_entering_account_name(user):
+ """Handle the login account name."""
+
+ # get the next waiting line of input
+ input_data = user.input_queue.pop(0)
+
+ # did the user enter anything?
+ if input_data:
+
+ # keep only the first word and convert to lower-case
+ user.proposed_name = string.split(input_data)[0].lower()
+
+ # if we have a password hash, time to request a password
+ if user.get_passhash():
+ user.state = "checking_password"
+
+ # otherwise, this could be a brand new user
else:
user.name = user.proposed_name
user.proposed_name = None
user.load()
- user.state = "checking new account name"
+ muffmisc.log("New user: " + user.name)
+ user.state = "checking_new_account_name"
+
+ # if the user entered nothing for a name, then buhbye
else:
- command_quit(user)
+ user.state = "disconnecting"
+
+def handler_checking_password(user):
+ """Handle the login account password."""
+
+ # get the next waiting line of input
+ input_data = user.input_queue.pop(0)
-def handler_checking_password(user, input):
- if md5.new(user.proposed_name + input).hexdigest() == user.passhash:
+ # does the hashed input equal the stored hash?
+ if md5.new(user.proposed_name + input_data).hexdigest() == user.passhash:
+
+ # if so, set the username and load from cold storage
user.name = user.proposed_name
- user.proposed_name = None
- user.load()
- user.state = "active"
- elif user.password_tries < muffconf.config_data.getint("general", "password_tries"):
+ del(user.proposed_name)
+ if not user.replace_old_connections():
+ user.load()
+ user.authenticate()
+ user.state = "main_utility"
+
+ # if at first your hashes don't match, try, try again
+ elif user.password_tries < muffconf.getint("general", "password_tries"):
user.password_tries += 1
user.error = "incorrect"
+
+ # we've exceeded the maximum number of password failures, so disconnect
else:
user.send("$(eol)$(red)Too many failed password attempts...$(nrm)$(eol)")
- command_quit(user)
+ user.state = "disconnecting"
+
+def handler_checking_new_account_name(user):
+ """Handle input for the new user menu."""
-def handler_checking_new_account_name(user, input):
- if input:
- choice = input.lower()[0]
+ # get the next waiting line of input
+ input_data = user.input_queue.pop(0)
+
+ # if there's input, take the first character and lowercase it
+ if input_data:
+ choice = input_data.lower()[0]
+
+ # if there's no input, use the default
else:
- choice = muffmenu.get_default(user)
+ choice = muffmenu.get_default_menu_choice(user.state)
+
+ # user selected to disconnect
if choice == "d":
- command_quit(user)
+ user.state = "disconnecting"
+
+ # go back to the login screen
elif choice == "g":
- user.state = "entering account name"
+ user.state = "entering_account_name"
+
+ # new user, so ask for a password
elif choice == "n":
- user.state = "entering new password"
+ user.state = "entering_new_password"
+
+ # user entered a non-existent option
else:
user.error = "default"
-def handler_entering_new_password(user, input):
- 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)):
- user.passhash = md5.new(user.name + input).hexdigest()
- user.state = "verifying new password"
- elif user.password_tries < muffconf.config_data.getint("general", "password_tries"):
+def handler_entering_new_password(user):
+ """Handle a new password entry."""
+
+ # get the next waiting line of input
+ input_data = user.input_queue.pop(0)
+
+ # make sure the password is strong--at least one upper, one lower and
+ # one digit, seven or more characters in length
+ if len(input_data) > 6 and len(filter(lambda x: x>="0" and x<="9", input_data)) and len(filter(lambda x: x>="A" and x<="Z", input_data)) and len(filter(lambda x: x>="a" and x<="z", input_data)):
+
+ # hash and store it, then move on to verification
+ user.passhash = md5.new(user.name + input_data).hexdigest()
+ user.state = "verifying_new_password"
+
+ # the password was weak, try again if you haven't tried too many times
+ elif user.password_tries < muffconf.getint("general", "password_tries"):
user.password_tries += 1
user.error = "weak"
+
+ # too many tries, so adios
else:
user.send("$(eol)$(red)Too many failed password attempts...$(nrm)$(eol)")
- command_quit(user)
+ user.state = "disconnecting"
+
+def handler_verifying_new_password(user):
+ """Handle the re-entered new password for verification."""
+
+ # get the next waiting line of input
+ input_data = user.input_queue.pop(0)
+
+ # hash the input and match it to storage
+ if md5.new(user.name + input_data).hexdigest() == user.passhash:
+ user.authenticate()
+ user.save()
-def handler_verifying_new_password(user, input):
- if md5.new(user.name + input).hexdigest() == user.passhash:
- user.state = "active"
- elif user.password_tries < muffconf.config_data.getint("general", "password_tries"):
+ # the hashes matched, so go active
+ if not user.replace_old_connections(): user.state = "main_utility"
+
+ # go back to entering the new password as long as you haven't tried
+ # too many times
+ elif user.password_tries < muffconf.getint("general", "password_tries"):
user.password_tries += 1
user.error = "differs"
- user.state = "entering new password"
+ user.state = "entering_new_password"
+
+ # otherwise, sayonara
else:
user.send("$(eol)$(red)Too many failed password attempts...$(nrm)$(eol)")
- command_quit(user)
+ user.state = "disconnecting"
+
+def handler_active(user):
+ """Handle input for active users."""
-def handler_active(user, input):
- if not user.authenticated: user.authenticated = True
+ # get the next waiting line of input
+ input_data = user.input_queue.pop(0)
+
+ # split out the command (first word) and parameters (everything else)
try:
- inputlist = string.split(input, None, 1)
+ inputlist = string.split(input_data, None, 1)
command = inputlist[0]
except:
- command = input
+ command = input_data
try:
parameters = inputlist[1]
except:
parameters = ""
+ del(inputlist)
+
+ # lowercase the command
command = command.lower()
- if not command: command_null(user, command, parameters)
- elif command in command_list: exec("command_" + command + "(user, command, parameters)")
- else: command_error(user, command, parameters)
-def handler_fallthrough(user, input):
- if input:
- print("User \"" + user + "\" entered \"" + input + "\" while in unknown state \"" + user.state + "\".")
+ # the command matches a command word for which we have data
+ if command in muffuniv.universe.commands.keys():
+ exec(muffuniv.universe.commands[command].get("action"))
+
+ # no data matching the entered command word
+ elif command: command_error(user, command, parameters)
def command_halt(user, command="", parameters=""):
- muffmisc.broadcast(user.name + " halts the world.")
- for each_user in muffvars.userlist:
- each_user.save()
+ """Halt the world."""
+
+ # see if there's a message or use a generic one
+ if parameters: message = "Halting: " + parameters
+ else: message = "User " + user.name + " halted the world."
+
+ # let everyone know
+ muffmisc.broadcast(message)
+ muffmisc.log(message)
+
+ # set a flag to terminate the world
muffvars.terminate_world = True
def command_reload(user, command="", parameters=""):
- user.send("Reloading all code modules.")
+ """Reload all code modules, configs and data."""
+
+ # let the user know and log
+ user.send("Reloading all code modules, configs and data.")
+ muffmisc.log("User " + user.name + " reloaded the world.")
+
+ # set a flag to reload
muffvars.reload_modules = True
def command_quit(user, command="", parameters=""):
- user.save()
- user.connection.close()
- user.remove()
+ """Quit the world."""
+ user.state = "disconnecting"
+
+def command_time(user, command="", parameters=""):
+ """Show the current world time in elapsed increments."""
+ user.send(muffuniv.universe.internals["counters"].get("elapsed") + " increments elapsed since the world was created.")
def command_help(user, command="", parameters=""):
+ """List available commands and provide help for commands."""
+
+ # did the user ask for help on a specific command word?
if parameters:
- if parameters in command_list:
- if command_data.has_section(parameters):
- try:
- description = command_data.get(parameters, "description")
- except:
- description = "(no short description provided)"
- output = "$(grn)" + parameters + "$(nrm) - " + command_data.get(parameters, "description") + "$(eol)$(eol)"
- try:
- help_text = command_data.get(parameters, "help")
- except:
- help_text = "No help is provided for this command."
- output += help_text
- else:
- output = "There is no information on that command."
+
+ # is the command word one for which we have data?
+ if parameters in muffuniv.universe.commands.keys():
+
+ # add a description if provided
+ description = muffuniv.universe.commands[parameters].get("description")
+ if not description:
+ description = "(no short description provided)"
+ output = "$(grn)" + parameters + "$(nrm) - " + description + "$(eol)$(eol)"
+
+ # add the help text if provided
+ help_text = muffuniv.universe.commands[parameters].get("help")
+ if not help_text:
+ help_text = "No help is provided for this command."
+ output += help_text
+
+ # no data for the requested command word
else:
output = "That is not an available command."
-
+
+ # no specific command word was indicated
else:
+
+ # give a sorted list of commands with descriptions if provided
output = "These are the commands available to you:$(eol)$(eol)"
- sorted_commands = command_list
+ sorted_commands = muffuniv.universe.commands.keys()
sorted_commands.sort()
for item in sorted_commands:
- try:
- description = command_data.get(item, "description")
- except:
+ description = muffuniv.universe.commands[item].get("description")
+ if not description:
description = "(no short description provided)"
- output += " $(grn)" + item + "$(nrm) - " + command_data.get(item, "description") + "$(eol)"
+ output += " $(grn)" + item + "$(nrm) - " + description + "$(eol)"
output += "$(eol)Enter \"help COMMAND\" for help on a command named \"COMMAND\"."
+
+ # send the accumulated output to the user
user.send(output)
def command_say(user, command="", parameters=""):
- message = parameters.strip("\"'`").capitalize()
- if parameters:
- if message[-1] == "!":
- action = "exclaim"
- elif message[-1] in [ ",", "-", ":", ";" ]:
- action = "begin"
- elif message[-3:] == "...":
- action = "muse"
- elif message[-1] == "?":
- action = "ask"
- else:
- action = "say"
- message += "."
- capitalization = [ "i", "i'd", "i'll" ]
- for word in capitalization:
+ """Speak to others in the same room."""
+
+ # check for replacement macros
+ if muffmisc.replace_macros(user, parameters, True) != parameters:
+ user.send("You cannot speak $_(replacement macros).")
+
+ # the user entered a message
+ elif parameters:
+
+ # get rid of quote marks on the ends of the message and
+ # capitalize the first letter
+ message = parameters.strip("\"'`").capitalize()
+
+ # a dictionary of punctuation:action pairs
+ actions = {}
+ for option in muffconf.config_data.options("language"):
+ if option.startswith("punctuation_"):
+ action = option.split("_")[1]
+ for mark in muffconf.config_data.get("language", option).split():
+ actions[mark] = action
+
+ # set the default action
+ action = actions[muffconf.config_data.get("language", "default_punctuation")]
+
+ # match the punctuation used, if any, to an action
+ default_punctuation = muffconf.config_data.get("language", "default_punctuation")
+ for mark in actions.keys():
+ if message.endswith(mark) and mark != default_punctuation:
+ action = actions[mark]
+ break
+
+ # if the action is default and there is no mark, add one
+ if action == actions[default_punctuation] and not message.endswith(default_punctuation):
+ message += default_punctuation
+
+ # capitalize a list of words within the message
+ capitalize = muffconf.get("language", "capitalize").split()
+ for word in capitalize:
message = message.replace(" " + word + " ", " " + word.capitalize() + " ")
+
+ # tell the room
+ # TODO: we won't be using broadcast once there are actual rooms
muffmisc.broadcast(user.name + " " + action + "s, \"" + message + "\"")
+
+ # there was no message
else:
user.send("What do you want to say?")
-def command_null(user, command="", parameters=""):
- pass
+def command_show(user, command="", parameters=""):
+ """Show program data."""
+ if parameters == "avatars":
+ message = "These are the avatars managed by your account:$(eol)"
+ avatars = user.list_avatar_names()
+ avatars.sort()
+ for avatar in avatars: message += "$(eol) $(grn)" + avatar + "$(nrm)"
+ elif parameters == "files":
+ message = "These are the current files containing the universe:$(eol)"
+ keys = muffuniv.universe.files.keys()
+ keys.sort()
+ for key in keys: message += "$(eol) $(grn)" + key + "$(nrm)"
+ elif parameters == "universe":
+ message = "These are the current elements in the universe:$(eol)"
+ keys = muffuniv.universe.contents.keys()
+ keys.sort()
+ for key in keys: message += "$(eol) $(grn)" + key + "$(nrm)"
+ elif parameters: message = "I don't know what \"" + parameters + "\" is."
+ else: message = "What do you want to show?"
+ user.send(message)
def command_error(user, command="", parameters=""):
- if random.random() > 0.1:
+ """Generic error for an unrecognized command word."""
+
+ # 90% of the time use a generic error
+ if random.randrange(10):
message = "I'm not sure what \"" + command
if parameters:
message += " " + parameters
message += "\" means..."
+
+ # 10% of the time use the classic diku error
else:
message = "Arglebargle, glop-glyf!?!"
+
+ # send the error message
user.send(message)
projects / mudpy.git / blobdiff