"""Core objects for the mudpy engine."""
-# Copyright (c) 2005 mudpy, Jeremy Stanley <fungi@yuggoth.org>, all rights reserved.
+# Copyright (c) 2006 mudpy, Jeremy Stanley <fungi@yuggoth.org>, all rights reserved.
# Licensed per terms in the LICENSE file distributed with this software.
# import some things we need
from ConfigParser import RawConfigParser
from md5 import new as new_md5
-from os import R_OK, access, chmod, makedirs, stat
+from os import _exit, R_OK, W_OK, access, chmod, close, fork, getpid, makedirs, remove, setsid, stat
from os.path import abspath, dirname, exists, isabs, join as path_join
from random import choice, randrange
+from re import match
+from signal import SIGHUP, SIGTERM, signal
from socket import AF_INET, SO_REUSEADDR, SOCK_STREAM, SOL_SOCKET, socket
from stat import S_IMODE, ST_MODE
-from telnetlib import DO, DONT, ECHO, EOR, IAC, WILL, WONT
+from sys import stderr
+from syslog import LOG_PID, LOG_INFO, LOG_DAEMON, closelog, openlog, syslog
+from telnetlib import DO, DONT, ECHO, EOR, GA, IAC, LINEMODE, SB, SE, SGA, WILL, WONT
from time import asctime, sleep
+from traceback import format_exception
+
+def excepthook(excepttype, value, traceback):
+ """Handle uncaught exceptions."""
+
+ # assemble the list of errors into a single string
+ message = "".join(format_exception(excepttype, value, traceback))
+
+ # try to log it, if possible
+ try: log(message, 9)
+ except: pass
+
+ # try to write it to stderr, if possible
+ try: stderr.write(message)
+ except: pass
+
+# redefine sys.excepthook with ours
+import sys
+sys.excepthook = excepthook
+
+def sighook(what, where):
+ """Handle external signals."""
+
+ # a generic message
+ message = "Caught signal: "
+
+ # for a hangup signal
+ if what == SIGHUP:
+ message += "hangup (reloading)"
+ universe.reload_modules = True
+
+ # for a terminate signal
+ elif what == SIGTERM:
+ message += "terminate (halting)"
+ universe.terminate_world = True
+
+ # catchall for unexpected signals
+ else: message += str(what) + " (unhandled)"
+
+ # log what happened
+ log(message, 8)
+
+# assign the sgnal handlers
+signal(SIGHUP, sighook)
+signal(SIGTERM, sighook)
class Element:
"""An element of the universe."""
- def __init__(self, key, universe, origin=""):
- """Default values for the in-memory element variables."""
+ def __init__(self, key, universe, filename=None):
+ """Set up a new element."""
+
+ # keep track of our key name
self.key = key
- if self.key.find(":") > 0:
- self.category, self.subkey = self.key.split(":", 1)
+
+ # keep track of what universe it's loading` into
+ self.universe = universe
+
+ # clone attributes if this is replacing another element
+ if self.key in self.universe.contents:
+ old_element = self.universe.contents[self.key]
+ for attribute in vars(old_element).keys():
+ exec("self." + attribute + " = old_element." + attribute)
+ if self.owner: self.owner.avatar = self
+
+ # i guess this is a new element then
else:
- self.category = "other"
- self.subkey = self.key
- if not self.category in universe.categories: self.category = "other"
- universe.categories[self.category][self.subkey] = self
- self.origin = origin
- if not self.origin: self.origin = universe.default_origins[self.category]
- if not isabs(self.origin):
- self.origin = abspath(self.origin)
- universe.contents[self.key] = self
- if not self.origin in universe.files:
- DataFile(self.origin, universe)
- if not universe.files[self.origin].data.has_section(self.key):
- universe.files[self.origin].data.add_section(self.key)
+
+ # not owned by a user by default (used for avatars)
+ self.owner = None
+
+ # no contents in here by default
+ self.contents = {}
+
+ # parse out appropriate category and subkey names, add to list
+ if self.key.find(":") > 0:
+ self.category, self.subkey = self.key.split(":", 1)
+ else:
+ self.category = "other"
+ self.subkey = self.key
+ if not self.category in self.universe.categories:
+ self.category = "other"
+ self.subkey = self.key
+
+ # get an appropriate filename for the origin
+ if not filename: filename = self.universe.default_origins[self.category]
+ if not isabs(filename): filename = abspath(filename)
+
+ # add the file if it doesn't exist yet
+ if not filename in self.universe.files: DataFile(filename, self.universe)
+
+ # record or reset a pointer to the origin file
+ self.origin = self.universe.files[filename]
+
+ # add a data section to the origin if necessary
+ if not self.origin.data.has_section(self.key):
+ self.origin.data.add_section(self.key)
+
+ # add or replace this element in the universe
+ self.universe.contents[self.key] = self
+ self.universe.categories[self.category][self.subkey] = self
+
+ def reload(self):
+ """Create a new element and replace this one."""
+ new_element = Element(self.key, self.universe, self.origin.filename)
+ del(self)
def destroy(self):
"""Remove an element from the universe and destroy it."""
- log("Destroying: " + self.key + ".")
- universe.files[self.origin].data.remove_section(self.key)
- del universe.categories[self.category][self.subkey]
- del universe.contents[self.key]
+ self.origin.data.remove_section(self.key)
+ del self.universe.categories[self.category][self.subkey]
+ del self.universe.contents[self.key]
del self
- def delete(self, facet):
- """Delete a facet from the element."""
- if universe.files[self.origin].data.has_option(self.key, facet):
- universe.files[self.origin].data.remove_option(self.key, facet)
def facets(self):
- """Return a list of facets for this element."""
- return universe.files[self.origin].data.options(self.key)
+ """Return a list of non-inherited facets for this element."""
+ if self.key in self.origin.data.sections():
+ return self.origin.data.options(self.key)
+ else: return []
+ def has_facet(self, facet):
+ """Return whether the non-inherited facet exists."""
+ return facet in self.facets()
+ def remove_facet(self, facet):
+ """Remove a facet from the element."""
+ if self.has_facet(facet):
+ self.origin.data.remove_option(self.key, facet)
+ self.origin.modified = True
+ def ancestry(self):
+ """Return a list of the element's inheritance lineage."""
+ if self.has_facet("inherit"):
+ ancestry = self.getlist("inherit")
+ for parent in ancestry[:]:
+ ancestors = self.universe.contents[parent].ancestry()
+ for ancestor in ancestors:
+ if ancestor not in ancestry: ancestry.append(ancestor)
+ return ancestry
+ else: return []
def get(self, facet, default=None):
"""Retrieve values."""
if default is None: default = ""
- if universe.files[self.origin].data.has_option(self.key, facet):
- return universe.files[self.origin].data.get(self.key, facet)
+ if self.origin.data.has_option(self.key, facet):
+ return self.origin.data.get(self.key, facet)
+ elif self.has_facet("inherit"):
+ for ancestor in self.ancestry():
+ if self.universe.contents[ancestor].has_facet(facet):
+ return self.universe.contents[ancestor].get(facet)
else: return default
def getboolean(self, facet, default=None):
"""Retrieve values as boolean type."""
if default is None: default=False
- if universe.files[self.origin].data.has_option(self.key, facet):
- return universe.files[self.origin].data.getboolean(self.key, facet)
+ if self.origin.data.has_option(self.key, facet):
+ return self.origin.data.getboolean(self.key, facet)
+ elif self.has_facet("inherit"):
+ for ancestor in self.ancestry():
+ if self.universe.contents[ancestor].has_facet(facet):
+ return self.universe.contents[ancestor].getboolean(facet)
else: return default
def getint(self, facet, default=None):
"""Return values as int/long type."""
if default is None: default = 0
- if universe.files[self.origin].data.has_option(self.key, facet):
- return universe.files[self.origin].data.getint(self.key, facet)
+ if self.origin.data.has_option(self.key, facet):
+ return self.origin.data.getint(self.key, facet)
+ elif self.has_facet("inherit"):
+ for ancestor in self.ancestry():
+ if self.universe.contents[ancestor].has_facet(facet):
+ return self.universe.contents[ancestor].getint(facet)
else: return default
def getfloat(self, facet, default=None):
"""Return values as float type."""
if default is None: default = 0.0
- if universe.files[self.origin].data.has_option(self.key, facet):
- return universe.files[self.origin].data.getfloat(self.key, facet)
+ if self.origin.data.has_option(self.key, facet):
+ return self.origin.data.getfloat(self.key, facet)
+ elif self.has_facet("inherit"):
+ for ancestor in self.ancestry():
+ if self.universe.contents[ancestor].has_facet(facet):
+ return self.universe.contents[ancestor].getfloat(facet)
else: return default
def getlist(self, facet, default=None):
"""Return values as list type."""
else: return default
def set(self, facet, value):
"""Set values."""
+ if not self.has_facet(facet) or not self.get(facet) == value:
+ if type(value) is long: value = str(value)
+ elif not type(value) is str: value = repr(value)
+ self.origin.data.set(self.key, facet, value)
+ self.origin.modified = True
+ def append(self, facet, value):
+ """Append value tp a list."""
if type(value) is long: value = str(value)
elif not type(value) is str: value = repr(value)
- universe.files[self.origin].data.set(self.key, facet, value)
+ newlist = self.getlist(facet)
+ newlist.append(value)
+ self.set(facet, newlist)
+
+ def new_event(self, action, when=None):
+ """Create, attach and enqueue an event element."""
+
+ # if when isn't specified, that means now
+ if not when: when = self.universe.get_time()
+
+ # events are elements themselves
+ event = Element("event:" + self.key + ":" + counter)
+
+ def send(self, message, eol="$(eol)"):
+ """Convenience method to pass messages to an owner."""
+ if self.owner: self.owner.send(message, eol)
+
+ def can_run(self, command):
+ """Check if the user can run this command object."""
+
+ # has to be in the commands category
+ if command not in self.universe.categories["command"].values(): result = False
+
+ # avatars of administrators can run any command
+ elif self.owner and self.owner.account.getboolean("administrator"): result = True
+
+ # everyone can run non-administrative commands
+ elif not command.getboolean("administrative"): result = True
+
+ # otherwise the command cannot be run by this actor
+ else: result = False
+
+ # pass back the result
+ return result
+
+ def update_location(self):
+ """Make sure the location's contents contain this element."""
+ location = self.get("location")
+ if location in self.universe.contents:
+ self.universe.contents[location].contents[self.key] = self
+ def clean_contents(self):
+ """Make sure the element's contents aren't bogus."""
+ for element in self.contents.values():
+ if element.get("location") != self.key:
+ del self.contents[element.key]
+ def go_to(self, location):
+ """Relocate the element to a specific location."""
+ current = self.get("location")
+ if current and self.key in self.universe.contents[current].contents:
+ del universe.contents[current].contents[self.key]
+ if location in self.universe.contents: self.set("location", location)
+ self.universe.contents[location].contents[self.key] = self
+ self.look_at(location)
+ def go_home(self):
+ """Relocate the element to its default location."""
+ self.go_to(self.get("default_location"))
+ self.echo_to_location("You suddenly realize that " + self.get("name") + " is here.")
+ def move_direction(self, direction):
+ """Relocate the element in a specified direction."""
+ self.echo_to_location(self.get("name") + " exits " + self.universe.categories["internal"]["directions"].getdict(direction)["exit"] + ".")
+ self.send("You exit " + self.universe.categories["internal"]["directions"].getdict(direction)["exit"] + ".")
+ self.go_to(self.universe.contents[self.get("location")].link_neighbor(direction))
+ self.echo_to_location(self.get("name") + " arrives from " + self.universe.categories["internal"]["directions"].getdict(direction)["enter"] + ".")
+ def look_at(self, key):
+ """Show an element to another element."""
+ if self.owner:
+ element = self.universe.contents[key]
+ message = ""
+ name = element.get("name")
+ if name: message += "$(cyn)" + name + "$(nrm)$(eol)"
+ description = element.get("description")
+ if description: message += description + "$(eol)"
+ portal_list = element.portals().keys()
+ if portal_list:
+ portal_list.sort()
+ message += "$(cyn)[ Exits: " + ", ".join(portal_list) + " ]$(nrm)$(eol)"
+ for element in self.universe.contents[self.get("location")].contents.values():
+ if element.getboolean("is_actor") and element is not self:
+ message += "$(yel)" + element.get("name") + " is here.$(nrm)$(eol)"
+ elif element is not self:
+ message += "$(grn)" + element.get("impression") + "$(nrm)$(eol)"
+ self.send(message)
+ def portals(self):
+ """Map the portal directions for a room to neighbors."""
+ portals = {}
+ if match("""^location:-?\d+,-?\d+,-?\d+$""", self.key):
+ coordinates = [(int(x)) for x in self.key.split(":")[1].split(",")]
+ directions = self.universe.categories["internal"]["directions"]
+ offsets = dict([(x, directions.getdict(x)["vector"]) for x in directions.facets()])
+ for portal in self.getlist("gridlinks"):
+ adjacent = map(lambda c,o: c+o, coordinates, offsets[portal])
+ neighbor = "location:" + ",".join([(str(x)) for x in adjacent])
+ if neighbor in self.universe.contents: portals[portal] = neighbor
+ for facet in self.facets():
+ if facet.startswith("link_"):
+ neighbor = self.get(facet)
+ if neighbor in self.universe.contents:
+ portal = facet.split("_")[1]
+ portals[portal] = neighbor
+ return portals
+ def link_neighbor(self, direction):
+ """Return the element linked in a given direction."""
+ portals = self.portals()
+ if direction in portals: return portals[direction]
+ def echo_to_location(self, message):
+ """Show a message to other elements in the current location."""
+ for element in self.universe.contents[self.get("location")].contents.values():
+ if element is not self: element.send(message)
class DataFile:
"""A file containing universe elements."""
def __init__(self, filename, universe):
- self.data = RawConfigParser()
- if access(filename, R_OK): self.data.read(filename)
self.filename = filename
- universe.files[filename] = self
- if self.data.has_option("control", "include_files"):
- includes = makelist(self.data.get("control", "include_files"))
+ self.universe = universe
+ self.load()
+ def load(self):
+ """Read a file and create elements accordingly."""
+ self.modified = False
+ self.data = RawConfigParser()
+ if access(self.filename, R_OK): self.data.read(self.filename)
+ if not hasattr(self.universe, "files"): self.universe.files = {}
+ self.universe.files[self.filename] = self
+ if self.data.has_option("__control__", "include_files"):
+ includes = makelist(self.data.get("__control__", "include_files"))
else: includes = []
- if self.data.has_option("control", "default_files"):
- origins = makedict(self.data.get("control", "default_files"))
+ if self.data.has_option("__control__", "default_files"):
+ origins = makedict(self.data.get("__control__", "default_files"))
for key in origins.keys():
if not key in includes: includes.append(key)
- universe.default_origins[key] = origins[key]
- if not key in universe.categories:
- universe.categories[key] = {}
- if self.data.has_option("control", "private_files"):
- for item in makelist(self.data.get("control", "private_files")):
+ self.universe.default_origins[key] = origins[key]
+ if not key in self.universe.categories:
+ self.universe.categories[key] = {}
+ if self.data.has_option("__control__", "private_files"):
+ for item in makelist(self.data.get("__control__", "private_files")):
if not item in includes: includes.append(item)
- if not item in universe.private_files:
+ if not item in self.universe.private_files:
if not isabs(item):
- item = path_join(dirname(filename), item)
- universe.private_files.append(item)
+ item = path_join(dirname(self.filename), item)
+ self.universe.private_files.append(item)
for section in self.data.sections():
- if section != "control":
- Element(section, universe, filename)
+ if section != "__control__":
+ Element(section, self.universe, self.filename)
for include_file in includes:
if not isabs(include_file):
- include_file = path_join(dirname(filename), include_file)
- DataFile(include_file, universe)
+ include_file = path_join(dirname(self.filename), include_file)
+ if include_file not in self.universe.files or not self.universe.files[include_file].is_writeable():
+ DataFile(include_file, self.universe)
def save(self):
- if ( self.data.sections() or exists(self.filename) ) and not ( self.data.has_option("control", "read_only") and self.data.getboolean("control", "read_only") ):
- if not exists(dirname(self.filename)): makedirs(dirname(self.filename))
+ """Write the data, if necessary."""
+
+ # when modified, writeable and has content or the file exists
+ if self.modified and self.is_writeable() and ( self.data.sections() or exists(self.filename) ):
+
+ # make parent directories if necessary
+ if not exists(dirname(self.filename)):
+ makedirs(dirname(self.filename))
+
+ # our data file
file_descriptor = file(self.filename, "w")
- if self.filename in universe.private_files and oct(S_IMODE(stat(self.filename)[ST_MODE])) != 0600:
+
+ # if it's marked private, chmod it appropriately
+ if self.filename in self.universe.private_files and oct(S_IMODE(stat(self.filename)[ST_MODE])) != 0600:
chmod(self.filename, 0600)
- self.data.write(file_descriptor)
+
+ # write it back sorted, instead of using ConfigParser
+ sections = self.data.sections()
+ sections.sort()
+ for section in sections:
+ file_descriptor.write("[" + section + "]\n")
+ options = self.data.options(section)
+ options.sort()
+ for option in options:
+ file_descriptor.write(option + " = " + self.data.get(section, option) + "\n")
+ file_descriptor.write("\n")
+
+ # flush and close the file
file_descriptor.flush()
file_descriptor.close()
+ # unset the modified flag
+ self.modified = False
+ def is_writeable(self):
+ """Returns True if the __control__ read_only is False."""
+ return not self.data.has_option("__control__", "read_only") or not self.data.getboolean("__control__", "read_only")
+
class Universe:
"""The universe."""
+
def __init__(self, filename=""):
"""Initialize the universe."""
self.categories = {}
self.contents = {}
self.default_origins = {}
- self.files = {}
self.private_files = []
+ self.loglines = []
+ self.pending_events_long = {}
+ self.pending_events_short = {}
self.userlist = []
self.terminate_world = False
self.reload_modules = False
if access(filename, R_OK): break
if not isabs(filename):
filename = abspath(filename)
- DataFile(filename, self)
+ self.filename = filename
+ self.load()
+
+ def load(self):
+ """Load universe data from persistent storage."""
+
+ # the files dict must exist and filename needs to be read-only
+ if not hasattr(self, "files") or not ( self.filename in self.files and self.files[self.filename].is_writeable() ):
+
+ # clear out all read-only files
+ if hasattr(self, "files"):
+ for data_filename in self.files.keys():
+ if not self.files[data_filename].is_writeable():
+ del self.files[data_filename]
+
+ # start loading from the initial file
+ DataFile(self.filename, self)
+
+ # make a list of inactive avatars
+ inactive_avatars = []
+ for account in self.categories["account"].values():
+ inactive_avatars += [ (self.contents[x]) for x in account.getlist("avatars") ]
+ for user in self.userlist:
+ if user.avatar in inactive_avatars:
+ inactive_avatars.remove(user.avatar)
+
+ # go through all elements to clear out inactive avatar locations
+ for element in self.contents.values():
+ location = element.get("location")
+ if element in inactive_avatars and location:
+ if location in self.contents and element.key in self.contents[location].contents:
+ del self.contents[location].contents[element.key]
+ element.set("default_location", location)
+ element.remove_facet("location")
+
+ # another pass to straighten out all the element contents
+ for element in self.contents.values():
+ element.update_location()
+ element.clean_contents()
+
def save(self):
"""Save the universe to persistent storage."""
for key in self.files: self.files[key].save()
self.listening_socket.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)
# bind the socket to to our desired server ipa and port
- self.listening_socket.bind((self.categories["internal"]["network"].get("host"), self.categories["internal"]["network"].getint("port")))
+ host = self.categories["internal"]["network"].get("host")
+ port = self.categories["internal"]["network"].getint("port")
+ self.listening_socket.bind((host, port))
# disable blocking so we can proceed whether or not we can
# send/receive
self.listening_socket.listen(1)
# note that we're now ready for user connections
- log("Waiting for connection(s)...")
+ if not host: host = "0.0.0.0"
+ log("Listening for Telnet connections on: " + host + ":" + str(port))
+
+ def get_time(self):
+ """Convenience method to get the elapsed time counter."""
+ return self.categories["internal"]["counters"].getint("elapsed")
class User:
"""This is a connected user."""
def __init__(self):
"""Default values for the in-memory user variables."""
+ self.account = None
self.address = ""
- self.last_address = ""
- self.connection = None
self.authenticated = False
- self.password_tries = 0
- self.state = "entering_account_name"
- self.menu_seen = False
+ self.avatar = None
+ self.connection = None
+ self.echoing = True
self.error = ""
self.input_queue = []
+ self.last_address = ""
+ self.menu_choices = {}
+ self.menu_seen = False
+ self.negotiation_pause = 0
self.output_queue = []
self.partial_input = ""
- self.echoing = True
- self.avatar = None
- self.account = None
+ self.password_tries = 0
+ self.received_newline = True
+ self.state = "initial"
+ self.terminator = IAC+GA
def quit(self):
"""Log, close the connection and remove."""
if name: message = "User " + name
else: message = "An unnamed user"
message += " logged out."
- log(message)
+ log(message, 2)
+ self.deactivate_avatar()
self.connection.close()
self.remove()
# create a new user object
new_user = User()
- # set everything else equivalent
- for attribute in [
- "address",
- "last_address",
- "connection",
- "authenticated",
- "password_tries",
- "state",
- "menu_seen",
- "error",
- "input_queue",
- "output_queue",
- "partial_input",
- "echoing",
- "avatar",
- "account"
- ]:
+ # set everything equivalent
+ for attribute in vars(self).keys():
exec("new_user." + attribute + " = self." + attribute)
+ # the avatar needs a new owner
+ if new_user.avatar: new_user.avatar.owner = new_user
+
# add it to the list
universe.userlist.append(new_user)
if old_user.account.get("name") == self.account.get("name") and old_user is not self:
# make a note of it
- log("User " + self.account.get("name") + " reconnected--closing old connection to " + old_user.address + ".")
- old_user.send("$(eol)$(red)New connection from " + self.address + ". Terminating old connection...$(nrm)$(eol)")
- self.send("$(eol)$(red)Taking over old connection from " + old_user.address + ".$(nrm)")
+ log("User " + self.account.get("name") + " reconnected--closing old connection to " + old_user.address + ".", 2)
+ old_user.send("$(eol)$(red)New connection from " + self.address + ". Terminating old connection...$(nrm)$(eol)", flush=True, add_prompt=False)
# close the old connection
old_user.connection.close()
# replace the old connection with this one
+ old_user.send("$(eol)$(red)Taking over old connection from " + old_user.address + ".$(nrm)")
old_user.connection = self.connection
old_user.last_address = old_user.address
old_user.address = self.address
- old_user.echoing = self.echoing
+
+ # may need to tell the new connection to echo
+ if old_user.echoing:
+ old_user.send(get_echo_sequence(old_user.state, self.echoing), raw=True)
# take this one out of the list and delete
self.remove()
def authenticate(self):
"""Flag the user as authenticated and disconnect duplicates."""
if not self.state is "authenticated":
- log("User " + self.account.get("name") + " logged in.")
+ log("User " + self.account.get("name") + " logged in.", 2)
self.authenticated = True
+ if self.account.subkey in universe.categories["internal"]["limits"].getlist("default_admins"):
+ self.account.set("administrator", "True")
def show_menu(self):
"""Send the user their current menu."""
if not self.menu_seen:
self.menu_choices = get_menu_choices(self)
- self.send(get_menu(self.state, self.error, self.echoing, self.menu_choices), "")
+ self.send(get_menu(self.state, self.error, self.echoing, self.terminator, self.menu_choices), "")
self.menu_seen = True
self.error = False
self.adjust_echoing()
"""Remove a user from the list of connected users."""
universe.userlist.remove(self)
- def send(self, output, eol="$(eol)"):
+ def send(self, output, eol="$(eol)", raw=False, flush=False, add_prompt=True, just_prompt=False):
"""Send arbitrary text to a connected user."""
- # start with a newline, append the message, then end
- # with the optional eol string passed to this function
- # and the ansi escape to return to normal text
- output = "\r\n" + output + eol + chr(27) + "[0m"
+ # unless raw mode is on, clean it up all nice and pretty
+ if not raw:
- # find and replace macros in the output
- output = replace_macros(self, output)
+ # strip extra $(eol) off if present
+ while output.startswith("$(eol)"): output = output[6:]
+ while output.endswith("$(eol)"): output = output[:-6]
- # wrap the text at 80 characters
- output = wrap_ansi_text(output, 80)
+ # we'll take out GA or EOR and add them back on the end
+ if output.endswith(IAC+GA) or output.endswith(IAC+EOR):
+ terminate = True
+ output = output[:-2]
+ else: terminate = False
- # drop the formatted output into the output queue
- self.output_queue.append(output)
+ # start with a newline, append the message, then end
+ # with the optional eol string passed to this function
+ # and the ansi escape to return to normal text
+ if not just_prompt: output = "$(eol)$(eol)" + output
+ output += eol + chr(27) + "[0m"
- # try to send the last item in the queue and remove it
- try:
- self.connection.send(self.output_queue[0])
- del self.output_queue[0]
+ # tack on a prompt if active
+ if self.state == "active":
+ if not just_prompt: output += "$(eol)"
+ if add_prompt: output += "> "
- # but if we can't, that's okay too
- except:
- pass
+ # find and replace macros in the output
+ output = replace_macros(self, output)
+
+ # wrap the text at 80 characters
+ output = wrap_ansi_text(output, 80)
+
+ # tack the terminator back on
+ if terminate: output += self.terminator
+
+ # drop the output into the user's output queue
+ self.output_queue.append(output)
+
+ # if this is urgent, flush all pending output
+ if flush: self.flush()
def pulse(self):
"""All the things to do to the user per increment."""
self.state = "disconnecting"
self.menu_seen = False
+ # if output is paused, decrement the counter
+ if self.state == "initial":
+ if self.negotiation_pause: self.negotiation_pause -= 1
+ else: self.state = "entering_account_name"
+
# show the user a menu as needed
- self.show_menu()
+ elif not self.state == "active": self.show_menu()
+
+ # flush any pending output in teh queue
+ self.flush()
# disconnect users with the appropriate state
if self.state == "disconnecting": self.quit()
- # the user is unique and not flagged to disconnect
- else:
-
- # check for input and add it to the queue
- self.enqueue_input()
+ # check for input and add it to the queue
+ self.enqueue_input()
+
+ # there is input waiting in the queue
+ if self.input_queue: handle_user_input(self)
+
+ def flush(self):
+ """Try to send the last item in the queue and remove it."""
+ if self.output_queue:
+ if self.received_newline:
+ self.received_newline = False
+ if self.output_queue[0].startswith("\r\n"):
+ self.output_queue[0] = self.output_queue[0][2:]
+ try:
+ self.connection.send(self.output_queue[0])
+ del self.output_queue[0]
+ except:
+ pass
- # there is input waiting in the queue
- if self.input_queue: handle_user_input(self)
def enqueue_input(self):
"""Process and enqueue any new input."""
if self.account and self.account.get("name"): logline += self.account.get("name") + ": "
else: logline += "unknown user: "
logline += repr(removed)
- log(logline)
+ log(logline, 4)
# filter out non-printables
line = filter(lambda x: " " <= x <= "~", line)
# if there wasn't an IAC in the input, skip to the end
if position < 0: position = len(text)
- # replace a double (literal) IAC and move on
+ # replace a double (literal) IAC if there's an LF later
elif len(text) > position+1 and text[position+1] == IAC:
- text = text.replace(IAC+IAC, IAC)
+ if text.find("\n", position) > 0: text = text.replace(IAC+IAC, IAC)
+ else: position += 1
position += 1
# this must be an option negotiation
elif len(text) > position+2 and text[position+1] in (DO, DONT, WILL, WONT):
+ negotiation = text[position+1:position+3]
+
# if we turned echo off, ignore the confirmation
- if not self.echoing and text[position+1:position+3] == DO+ECHO: pass
+ if not self.echoing and negotiation == DO+ECHO: pass
+
+ # allow LINEMODE
+ elif negotiation == WILL+LINEMODE: self.send(IAC+DO+LINEMODE, raw=True)
+
+ # if the client likes EOR instead of GA, make a note of it
+ elif negotiation == DO+EOR: self.terminator = IAC+EOR
+ elif negotiation == DONT+EOR and self.terminator == IAC+EOR:
+ self.terminator = IAC+GA
+
+ # if the client doesn't want GA, oblige
+ elif negotiation == DO+SGA and self.terminator == IAC+GA:
+ self.terminator = ""
+ self.send(IAC+WILL+SGA, raw=True)
# we don't want to allow anything else
- elif text[position+1] in (DO, WILL): self.send(IAC+WONT+text[position+2])
+ elif text[position+1] == DO: self.send(IAC+WONT+text[position+2], raw=True)
+ elif text[position+1] == WILL: self.send(IAC+DONT+text[position+2], raw=True)
# strip the negotiation from the input
text = text.replace(text[position:position+3], "")
+ # get rid of IAC SB .* IAC SE
+ elif len(text) > position+4 and text[position:position+2] == IAC+SB:
+ end_subnegotiation = text.find(IAC+SE, position)
+ if end_subnegotiation > 0: text = text[:position] + text[end_subnegotiation+2:]
+ else: position += 1
+
# otherwise, strip out a two-byte IAC command
- else: text = text.replace(text[position:position+2], "")
+ elif len(text) > position+2: text = text.replace(text[position:position+2], "")
+
+ # and this means we got the begining of an IAC
+ else: position += 1
# replace the input with our cleaned-up text
self.partial_input = text
- def can_run(self, command):
- """Check if the user can run this command object."""
-
- # has to be in the commands category
- if command not in universe.categories["command"].values(): result = False
-
- # administrators can run any command
- elif self.account.getboolean("administrator"): result = True
-
- # everyone can run non-administrative commands
- elif not command.getboolean("administrative"): result = True
-
- # otherwise the command cannot be run by this user
- else: result = False
-
- # pass back the result
- return result
-
def new_avatar(self):
"""Instantiate a new, unconfigured avatar for this user."""
counter = 0
while "avatar:" + self.account.get("name") + ":" + str(counter) in universe.categories["actor"].keys(): counter += 1
self.avatar = Element("actor:avatar:" + self.account.get("name") + ":" + str(counter), universe)
- avatars = self.account.getlist("avatars")
- avatars.append(self.avatar.key)
- self.account.set("avatars", avatars)
+ self.avatar.append("inherit", "archetype:avatar")
+ self.account.append("avatars", self.avatar.key)
def delete_avatar(self, avatar):
"""Remove an avatar from the world and from the user's list."""
avatars.remove(avatar)
self.account.set("avatars", avatars)
+ def activate_avatar_by_index(self, index):
+ """Enter the world with a particular indexed avatar."""
+ self.avatar = universe.contents[self.account.getlist("avatars")[index]]
+ self.avatar.owner = self
+ self.state = "active"
+ self.avatar.go_home()
+
+ def deactivate_avatar(self):
+ """Have the active avatar leave the world."""
+ if self.avatar:
+ current = self.avatar.get("location")
+ self.avatar.set("default_location", current)
+ self.avatar.echo_to_location("You suddenly wonder where " + self.avatar.get("name") + " went.")
+ del universe.contents[current].contents[self.avatar.key]
+ self.avatar.remove_facet("location")
+ self.avatar.owner = None
+ self.avatar = None
+
def destroy(self):
"""Destroy the user and associated avatars."""
for avatar in self.account.getlist("avatars"): self.delete_avatar(avatar)
"""List names of assigned avatars."""
return [ universe.contents[avatar].get("name") for avatar in self.account.getlist("avatars") ]
+def create_pidfile(universe):
+ """Write a file containing the current process ID."""
+ pid = str(getpid())
+ log("Process ID: " + pid)
+ file_name = universe.contents["internal:process"].get("pidfile")
+ if file_name:
+ file_descriptor = file(file_name, 'w')
+ file_descriptor.write(pid + "\n")
+ file_descriptor.flush()
+ file_descriptor.close()
+
+def remove_pidfile(universe):
+ """Remove the file containing the current process ID."""
+ file_name = universe.contents["internal:process"].get("pidfile")
+ if file_name and access(file_name, W_OK): remove(file_name)
+
def makelist(value):
"""Turn string into list type."""
if value[0] + value[-1] == "[]": return eval(value)
elif value.find(":") > 0: return eval("{" + value + "}")
else: return { value: None }
-def broadcast(message):
+def broadcast(message, add_prompt=True):
"""Send a message to all connected users."""
- for each_user in universe.userlist: each_user.send("$(eol)" + message)
+ for each_user in universe.userlist: each_user.send("$(eol)" + message, add_prompt=add_prompt)
-def log(message):
+def log(message, level=0):
"""Log a message."""
- # the time in posix log timestamp format
+ # a couple references we need
+ file_name = universe.categories["internal"]["logging"].get("file")
+ max_log_lines = universe.categories["internal"]["logging"].getint("max_log_lines")
+ syslog_name = universe.categories["internal"]["logging"].get("syslog")
timestamp = asctime()[4:19]
- # send the timestamp and message to standard output
- print(timestamp + " " + message)
+ # turn the message into a list of lines
+ lines = filter(lambda x: x!="", [(x.rstrip()) for x in message.split("\n")])
+
+ # send the timestamp and line to a file
+ if file_name:
+ file_descriptor = file(file_name, "a")
+ for line in lines: file_descriptor.write(timestamp + " " + line + "\n")
+ file_descriptor.flush()
+ file_descriptor.close()
+
+ # send the timestamp and line to standard output
+ if universe.categories["internal"]["logging"].getboolean("stdout"):
+ for line in lines: print(timestamp + " " + line)
+
+ # send the line to the system log
+ if syslog_name:
+ openlog(syslog_name, LOG_PID, LOG_INFO | LOG_DAEMON)
+ for line in lines: syslog(line)
+ closelog()
+
+ # display to connected administrators
+ for user in universe.userlist:
+ if user.state == "active" and user.account.getboolean("administrator") and user.account.getint("loglevel") <= level:
+ # iterate over every line in the message
+ full_message = ""
+ for line in lines:
+ full_message += "$(bld)$(red)" + timestamp + " " + line + "$(nrm)$(eol)"
+ user.send(full_message, flush=True)
+
+ # add to the recent log list
+ for line in lines:
+ while 0 < len(universe.loglines) >= max_log_lines: del universe.loglines[0]
+ universe.loglines.append((level, timestamp + " " + line))
+
+def get_loglines(level, start, stop):
+ """Return a specific range of loglines filtered by level."""
+
+ # filter the log lines
+ loglines = filter(lambda x: x[0]>=level, universe.loglines)
+
+ # we need these in several places
+ total_count = str(len(universe.loglines))
+ filtered_count = len(loglines)
+
+ # don't proceed if there are no lines
+ if filtered_count:
+
+ # can't start before the begining or at the end
+ if start > filtered_count: start = filtered_count
+ if start < 1: start = 1
+
+ # can't stop before we start
+ if stop > start: stop = start
+ elif stop < 1: stop = 1
+
+ # some preamble
+ message = "There are " + str(total_count)
+ message += " log lines in memory and " + str(filtered_count)
+ message += " at or above level " + str(level) + "."
+ message += " The lines from " + str(stop) + " to " + str(start)
+ message += " are:$(eol)$(eol)"
+
+ # add the text from the selected lines
+ if stop > 1: range_lines = loglines[-start:-(stop-1)]
+ else: range_lines = loglines[-start:]
+ for line in range_lines:
+ message += " (" + str(line[0]) + ") " + line[1] + "$(eol)"
+
+ # there were no lines
+ else:
+ message = "None of the " + str(total_count)
+ message += " lines in memory matches your request."
+
+ # pass it back
+ return message
def wrap_ansi_text(text, width):
"""Wrap text with arbitrary width while ignoring ANSI colors."""
"$(bld)": chr(27) + "[1m",
"$(nrm)": chr(27) + "[0m",
"$(blk)": chr(27) + "[30m",
+ "$(blu)": chr(27) + "[34m",
+ "$(cyn)": chr(27) + "[36m",
"$(grn)": chr(27) + "[32m",
+ "$(mgt)": chr(27) + "[35m",
"$(red)": chr(27) + "[31m",
+ "$(yel)": chr(27) + "[33m",
}
# add dynamic macros where possible
else:
text = text.replace(macro, "")
if not is_input:
- log("Unexpected replacement macro " + macro + " encountered.")
+ log("Unexpected replacement macro " + macro + " encountered.", 6)
# replace the look-like-a-macro sequence
text = text.replace("$_(", "$(")
# pause for a configurable amount of time (decimal seconds)
sleep(universe.categories["internal"]["time"].getfloat("increment"))
- # increment the elapsed increment counter
+ # increase the elapsed increment counter
universe.categories["internal"]["counters"].set("elapsed", universe.categories["internal"]["counters"].getint("elapsed") + 1)
def reload_data():
- """Reload data into new persistent objects."""
+ """Reload all relevant objects."""
for user in universe.userlist[:]: user.reload()
+ for element in universe.contents.values():
+ if element.origin.is_writeable(): element.reload()
+ universe.load()
def check_for_connection(listening_socket):
"""Check for a waiting connection and return a new user object."""
return None
# note that we got one
- log("Connection from " + address[0])
+ log("Connection from " + address[0], 2)
# disable blocking so we can proceed whether or not we can send/receive
connection.setblocking(0)
# set the user's ipa from the connection's ipa
user.address = address[0]
+ # let the client know we WILL EOR
+ user.send(IAC+WILL+EOR, raw=True)
+ user.negotiation_pause = 2
+
# return the new user object
return user
-def get_menu(state, error=None, echoing=True, choices={}):
+def get_menu(state, error=None, echoing=True, terminator="", choices=None):
"""Show the correct menu text to a user."""
+ # make sure we don't reuse a mutable sequence by default
+ if choices is None: choices = {}
+
# begin with a telnet echo command sequence if needed
message = get_echo_sequence(state, echoing)
# display a message indicating if echo is off
message += get_echo_message(state)
- # tack on IAC EOR to indicate the prompt will not be followed by CRLF
- message += IAC+EOR
+ # tack on EOR or GA to indicate the prompt will not be followed by CRLF
+ message += terminator
# return the assembly of various strings defined above
return message
user.menu_seen = False
# if the user's client echo is off, send a blank line for aesthetics
- if not user.echoing: user.send("", "")
+ if user.echoing: user.received_newline = True
def generic_menu_handler(user):
"""A generic menu choice handler."""
else:
user.account = Element("account:" + name, universe)
user.account.set("name", name)
- log("New user: " + name)
+ log("New user: " + name, 2)
user.state = "checking_new_account_name"
# if the user entered nothing for a name, then buhbye
# get the next waiting line of input
input_data = user.input_queue.pop(0)
- # split out the command (first word) and parameters (everything else)
- if input_data.find(" ") > 0:
- command_name, parameters = input_data.split(" ", 1)
- else:
- command_name = input_data
- parameters = ""
+ # is there input?
+ if input_data:
+
+ # split out the command (first word) and parameters (everything else)
+ if input_data.find(" ") > 0:
+ command_name, parameters = input_data.split(" ", 1)
+ else:
+ command_name = input_data
+ parameters = ""
- # lowercase the command
- command_name = command_name.lower()
+ # lowercase the command
+ command_name = command_name.lower()
- # the command matches a command word for which we have data
- if command_name in universe.categories["command"]:
- command = universe.categories["command"][command_name]
- else: command = None
+ # the command matches a command word for which we have data
+ if command_name in universe.categories["command"]:
+ command = universe.categories["command"][command_name]
+ else: command = None
- # if it's allowed, do it
- if user.can_run(command): exec(command.get("action"))
+ # if it's allowed, do it
+ actor = user.avatar
+ if actor.can_run(command): exec(command.get("action"))
- # otherwise, give an error
- elif command_name: command_error(user, input_data)
+ # otherwise, give an error
+ elif command_name: command_error(actor, input_data)
-def command_halt(user, parameters):
+ # if no input, just idle back with a prompt
+ else: user.send("", just_prompt=True)
+
+def command_halt(actor, parameters):
"""Halt the world."""
+ if actor.owner:
- # see if there's a message or use a generic one
- if parameters: message = "Halting: " + parameters
- else: message = "User " + user.account.get("name") + " halted the world."
+ # see if there's a message or use a generic one
+ if parameters: message = "Halting: " + parameters
+ else: message = "User " + actor.owner.account.get("name") + " halted the world."
- # let everyone know
- broadcast(message)
- log(message)
+ # let everyone know
+ broadcast(message, add_prompt=False)
+ log(message, 8)
- # set a flag to terminate the world
- universe.terminate_world = True
+ # set a flag to terminate the world
+ universe.terminate_world = True
-def command_reload(user):
+def command_reload(actor):
"""Reload all code modules, configs and data."""
+ if actor.owner:
- # let the user know and log
- user.send("Reloading all code modules, configs and data.")
- log("User " + user.account.get("name") + " reloaded the world.")
+ # let the user know and log
+ actor.send("Reloading all code modules, configs and data.")
+ log("User " + actor.owner.account.get("name") + " reloaded the world.", 8)
- # set a flag to reload
- universe.reload_modules = True
+ # set a flag to reload
+ universe.reload_modules = True
-def command_help(user, parameters):
+def command_quit(actor):
+ """Leave the world and go back to the main menu."""
+ if actor.owner:
+ actor.owner.state = "main_utility"
+ actor.owner.deactivate_avatar()
+
+def command_help(actor, parameters):
"""List available commands and provide help for commands."""
# did the user ask for help on a specific command word?
- if parameters:
+ if parameters and actor.owner:
# is the command word one for which we have data?
if parameters in universe.categories["command"]:
else: command = None
# only for allowed commands
- if user.can_run(command):
+ if actor.can_run(command):
# add a description if provided
description = command.get("description")
sorted_commands.sort()
for item in sorted_commands:
command = universe.categories["command"][item]
- if user.can_run(command):
+ if actor.can_run(command):
description = command.get("description")
if not description:
description = "(no short description provided)"
output += "$(eol)Enter \"help COMMAND\" for help on a command named \"COMMAND\"."
# send the accumulated output to the user
- user.send(output)
+ actor.send(output)
+
+def command_move(actor, parameters):
+ """Move the avatar in a given direction."""
+ if parameters in universe.contents[actor.get("location")].portals():
+ actor.move_direction(parameters)
+ else: actor.send("You cannot go that way.")
-def command_say(user, parameters):
+def command_look(actor, parameters):
+ """Look around."""
+ if parameters: actor.send("You can't look at or in anything yet.")
+ else: actor.look_at(actor.get("location"))
+
+def command_say(actor, parameters):
"""Speak to others in the same room."""
# check for replacement macros
- if replace_macros(user, parameters, True) != parameters:
- user.send("You cannot speak $_(replacement macros).")
+ if replace_macros(actor.owner, parameters, True) != parameters:
+ actor.send("You cannot speak $_(replacement macros).")
# the user entered a message
elif parameters:
# get rid of quote marks on the ends of the message and
# capitalize the first letter
- message = parameters.strip("\"'`").capitalize()
+ message = parameters.strip("\"'`")
+ message = message[0].capitalize() + message[1:]
# a dictionary of punctuation:action pairs
actions = {}
message = message.replace(" " + word + " ", " " + word.capitalize() + " ")
# tell the room
- # TODO: we won't be using broadcast once there are actual rooms
- broadcast(user.avatar.get("name") + " " + action + "s, \"" + message + "\"")
+ actor.echo_to_location(actor.get("name") + " " + action + "s, \"" + message + "\"")
+ actor.send("You " + action + ", \"" + message + "\"")
# there was no message
else:
- user.send("What do you want to say?")
+ actor.send("What do you want to say?")
-def command_show(user, parameters):
+def command_show(actor, parameters):
"""Show program data."""
message = ""
- if parameters.find(" ") < 1:
- if parameters == "time":
- message = universe.categories["internal"]["counters"].get("elapsed") + " increments elapsed since the world was created."
- elif parameters == "categories":
- message = "These are the element categories:$(eol)"
- categories = universe.categories.keys()
- categories.sort()
- for category in categories: message += "$(eol) $(grn)" + category + "$(nrm)"
- elif parameters == "files":
- message = "These are the current files containing the universe:$(eol)"
- filenames = universe.files.keys()
- filenames.sort()
- for filename in filenames: message += "$(eol) $(grn)" + filename + "$(nrm)"
- else: message = ""
- else:
- arguments = parameters.split()
- if arguments[0] == "category":
- if arguments[1] in universe.categories:
- message = "These are the elements in the \"" + arguments[1] + "\" category:$(eol)"
- elements = universe.categories[arguments[1]].keys()
- elements.sort()
- for element in elements:
- message += "$(eol) $(grn)" + universe.categories[arguments[1]][element].key + "$(nrm)"
- elif arguments[0] == "element":
- if arguments[1] in universe.contents:
- message = "These are the properties of the \"" + arguments[1] + "\" element:$(eol)"
- element = universe.contents[arguments[1]]
- facets = element.facets()
- facets.sort()
- for facet in facets:
- message += "$(eol) $(grn)" + facet + ": $(red)" + escape_macros(element.get(facet)) + "$(nrm)"
- if not message:
- if parameters: message = "I don't know what \"" + parameters + "\" is."
- else: message = "What do you want to show?"
- user.send(message)
-
-def command_create(user, parameters):
+ arguments = parameters.split()
+ if not parameters: message = "What do you want to show?"
+ elif arguments[0] == "time":
+ message = universe.categories["internal"]["counters"].get("elapsed") + " increments elapsed since the world was created."
+ elif arguments[0] == "categories":
+ message = "These are the element categories:$(eol)"
+ categories = universe.categories.keys()
+ categories.sort()
+ for category in categories: message += "$(eol) $(grn)" + category + "$(nrm)"
+ elif arguments[0] == "files":
+ message = "These are the current files containing the universe:$(eol)"
+ filenames = universe.files.keys()
+ filenames.sort()
+ for filename in filenames:
+ if universe.files[filename].is_writeable(): status = "rw"
+ else: status = "ro"
+ message += "$(eol) $(red)(" + status + ") $(grn)" + filename + "$(nrm)"
+ elif arguments[0] == "category":
+ if len(arguments) != 2: message = "You must specify one category."
+ elif arguments[1] in universe.categories:
+ message = "These are the elements in the \"" + arguments[1] + "\" category:$(eol)"
+ elements = [(universe.categories[arguments[1]][x].key) for x in universe.categories[arguments[1]].keys()]
+ elements.sort()
+ for element in elements:
+ message += "$(eol) $(grn)" + element + "$(nrm)"
+ else: message = "Category \"" + arguments[1] + "\" does not exist."
+ elif arguments[0] == "file":
+ if len(arguments) != 2: message = "You must specify one file."
+ elif arguments[1] in universe.files:
+ message = "These are the elements in the \"" + arguments[1] + "\" file:$(eol)"
+ elements = universe.files[arguments[1]].data.sections()
+ elements.sort()
+ for element in elements:
+ message += "$(eol) $(grn)" + element + "$(nrm)"
+ else: message = "Category \"" + arguments[1] + "\" does not exist."
+ elif arguments[0] == "element":
+ if len(arguments) != 2: message = "You must specify one element."
+ elif arguments[1] in universe.contents:
+ element = universe.contents[arguments[1]]
+ message = "These are the properties of the \"" + arguments[1] + "\" element (in \"" + element.origin.filename + "\"):$(eol)"
+ facets = element.facets()
+ facets.sort()
+ for facet in facets:
+ message += "$(eol) $(grn)" + facet + ": $(red)" + escape_macros(element.get(facet)) + "$(nrm)"
+ else: message = "Element \"" + arguments[1] + "\" does not exist."
+ elif arguments[0] == "result":
+ if len(arguments) < 2: message = "You need to specify an expression."
+ else:
+ try:
+ message = repr(eval(" ".join(arguments[1:])))
+ except:
+ message = "Your expression raised an exception!"
+ elif arguments[0] == "log":
+ if len(arguments) == 4:
+ if match("^\d+$", arguments[3]) and int(arguments[3]) >= 0:
+ stop = int(arguments[3])
+ else: stop = -1
+ else: stop = 0
+ if len(arguments) >= 3:
+ if match("^\d+$", arguments[2]) and int(arguments[2]) > 0:
+ start = int(arguments[2])
+ else: start = -1
+ else: start = 10
+ if len(arguments) >= 2:
+ if match("^\d+$", arguments[1]) and 0 <= int(arguments[1]) <= 9:
+ level = int(arguments[1])
+ else: level = -1
+ else: level = 1
+ if level > -1 and start > -1 and stop > -1:
+ message = get_loglines(level, start, stop)
+ else: message = "When specified, level must be 0-9 (default 1), start and stop must be >=1 (default 10 and 1)."
+ else: message = "I don't know what \"" + parameters + "\" is."
+ actor.send(message)
+
+def command_create(actor, parameters):
"""Create an element if it does not exist."""
if not parameters: message = "You must at least specify an element to create."
+ elif not actor.owner: message = ""
else:
arguments = parameters.split()
if len(arguments) == 1: arguments.append("")
if element in universe.contents: message = "The \"" + element + "\" element already exists."
else:
message = "You create \"" + element + "\" within the universe."
- logline = user.account.get("name") + " created an element: " + element
+ logline = actor.owner.account.get("name") + " created an element: " + element
if filename:
logline += " in file " + filename
if filename not in universe.files:
message += " Warning: \"" + filename + "\" is not yet included in any other file and will not be read on startup unless this is remedied."
Element(element, universe, filename)
- log(logline)
+ log(logline, 6)
elif len(arguments) > 2: message = "You can only specify an element and a filename."
- user.send(message)
+ actor.send(message)
-def command_destroy(user, parameters):
+def command_destroy(actor, parameters):
"""Destroy an element if it exists."""
- if not parameters: message = "You must specify an element to destroy."
- else:
- if parameters not in universe.contents: message = "The \"" + parameters + "\" element does not exist."
+ if actor.owner:
+ if not parameters: message = "You must specify an element to destroy."
else:
- universe.contents[parameters].destroy()
- message = "You destroy \"" + parameters + "\" within the universe."
- log(user.account.get("name") + " destroyed an element: " + parameters)
- user.send(message)
+ if parameters not in universe.contents: message = "The \"" + parameters + "\" element does not exist."
+ else:
+ universe.contents[parameters].destroy()
+ message = "You destroy \"" + parameters + "\" within the universe."
+ log(actor.owner.account.get("name") + " destroyed an element: " + parameters, 6)
+ actor.send(message)
-def command_set(user, parameters):
+def command_set(actor, parameters):
"""Set a facet of an element."""
if not parameters: message = "You must specify an element, a facet and a value."
else:
else:
universe.contents[element].set(facet, value)
message = "You have successfully (re)set the \"" + facet + "\" facet of element \"" + element + "\". Try \"show element " + element + "\" for verification."
- user.send(message)
+ actor.send(message)
-def command_delete(user, parameters):
+def command_delete(actor, parameters):
"""Delete a facet from an element."""
if not parameters: message = "You must specify an element and a facet."
else:
if element not in universe.contents: message = "The \"" + element + "\" element does not exist."
elif facet not in universe.contents[element].facets(): message = "The \"" + element + "\" element has no \"" + facet + "\" facet."
else:
- universe.contents[element].delete(facet)
+ universe.contents[element].remove_facet(facet)
message = "You have successfully deleted the \"" + facet + "\" facet of element \"" + element + "\". Try \"show element " + element + "\" for verification."
- user.send(message)
+ actor.send(message)
-def command_error(user, input_data):
+def command_error(actor, input_data):
"""Generic error for an unrecognized command word."""
# 90% of the time use a generic error
message = "Arglebargle, glop-glyf!?!"
# send the error message
- user.send(message)
+ actor.send(message)
+
+def daemonize():
+ """Fork and disassociate from everything."""
+ if universe.contents["internal:process"].getboolean("daemon"):
+ import sys
+ log("Disassociating from the controlling terminal.")
+ if fork(): _exit(0)
+ setsid()
+ for stdpipe in range(3): close(stdpipe)
+ sys.stdin = sys.__stdin__ = file("/dev/null", "r")
+ sys.stdout = sys.stderr = sys.__stdout__ = sys.__stderr__ = file("/dev/null", "w")
# if there is no universe, create an empty one
if not "universe" in locals(): universe = Universe()
projects / mudpy.git / blobdiff