evennia/functions_comsys.py

255 lines
8.4 KiB
Python

import cPickle as pickle
import time, datetime
from apps.objects.models import CommChannel, CommChannelMessage
import session_mgr
import ansi
"""
Comsys functions.
"""
def plr_get_cdict(session):
"""
Returns the users's channel subscription dictionary. Use this instead of
directly referring to the session object.
session: (SessionProtocol) Reference to a player session.
"""
return session.channels_subscribed
def plr_listening_channel(session, cstr, alias_search=False):
"""
Returns a player's listening status for a channel.
session: (SessionProtocol) Reference to a player session.
cstr: (str) The channel name or alias (depending on alias_search).
alias_search: (bool) If true, search by alias. Else search by full name.
"""
return plr_has_channel(session, cstr, alias_search=alias_search,
return_muted=False)
def plr_cname_from_alias(session, calias):
"""
Returns a channel name given a channel alias.
session: (SessionProtocol) Reference to a player session.
calias: (str) The channel alias.
"""
return plr_get_cdict(session).get(calias, None)[0]
def plr_chan_off(session, calias):
"""
Turn a channel off for a player.
session: (SessionProtocol) Reference to a player session.
calias: (str) The channel alias.
"""
if not plr_listening_channel(session, calias, alias_search=True):
session.msg("You're already not listening to that channel.")
return
else:
cname = plr_cname_from_alias(session, calias)
cobj = get_cobj_from_name(cname)
plr_set_channel_listening(session, calias, False)
session.msg("You have left %s." % (cname,))
send_cmessage(cname, "%s %s has left the channel." % (cobj.get_header(),
session.get_pobject().get_name(show_dbref=False)))
def plr_chan_on(session, calias):
"""
Turn a channel on for a player.
session: (SessionProtocol) Reference to a player session.
calias: (str) The channel alias.
"""
plr_listening = plr_listening_channel(session, calias, alias_search=True)
if plr_listening:
session.msg("You're already listening to that channel.")
return
else:
cname = plr_cname_from_alias(session, calias)
cobj = get_cobj_from_name(cname)
send_cmessage(cname, "%s %s has joined the channel." % (cobj.get_header(),
session.get_pobject().get_name(show_dbref=False)))
plr_set_channel_listening(session, calias, True)
session.msg("You have joined %s." % (cname,))
def plr_has_channel(session, cname, alias_search=False, return_muted=False):
"""
Is this session subscribed to the named channel?
session: (SessionProtocol) Reference to a player session.
cname: (str) The channel name or alias (depending on alias_search)
alias_search: (bool) If False, search by full name. Else search by alias.
return_muted: (bool) Take the user's enabling/disabling of the channel
into consideration?
"""
has_channel = False
if alias_search:
# Search by aliases only.
cdat = plr_get_cdict(session).get(cname, False)
# No key match, fail immediately.
if not cdat:
return False
# If channel status is taken into consideration, see if the user
# has the channel muted or not.
if return_muted:
return True
else:
return cdat[1]
else:
# Search by complete channel name.
chan_list = plr_get_cdict(session).values()
for chan in chan_list:
# Check for a name match
if cname == chan[0]:
has_channel = True
# If channel status is taken into consideration, see if the user
# has the channel muted or not.
if return_muted is False and not chan[1]:
has_channel = False
break
return has_channel
def plr_set_channel_listening(session, alias, listening):
"""
Add a channel to a session's channel list.
session: (SessionProtocol) A reference to the player session.
alias: (str) The channel alias.
listening: (bool) A True or False value to determine listening status.
"""
plr_get_cdict(session).get(alias)[1] = listening
plr_pickle_channels(session)
def plr_set_channel(session, alias, cname, listening):
"""
Set a channels alias, name, and listening status in one go, or add the
channel if it doesn't already exist on a user's list.
session: (SessionProtocol) A reference to the player session.
alias: (str) The channel alias (also the key in the user's cdict)
cname: (str) Desired channel name to set.
listening: (bool) A True or False value to determine listening status.
"""
plr_get_cdict(session)[alias] = [cname, listening]
plr_pickle_channels(session)
def plr_pickle_channels(session):
"""
Save the player's channel list to the CHANLIST attribute.
session: (SessionProtocol) A reference to the player session.
"""
session.get_pobject().set_attribute("CHANLIST", pickle.dumps(plr_get_cdict(session)))
def plr_del_channel(session, alias):
"""
Remove a channel from a session's channel list.
session: (SessionProtocol) A reference to the player session.
alias: (str) The channel alias (also the key in the user's cdict)
"""
del plr_get_cdict(session)[alias]
def msg_chan_hist(session, channel_name):
"""
Sends a listing of subscribers to a channel given a channel name.
session: (SessionProtocol) A reference to the player session.
channel_name: (str) The channel's full name.
"""
cobj = get_cobj_from_name(channel_name)
hist_list = CommChannelMessage.objects.filter(channel=cobj).order_by('date_sent')[0:20]
for entry in hist_list:
delta_days = datetime.datetime.now() - entry.date_sent
days_elapsed = delta_days.days
if days_elapsed > 0:
time_str = entry.date_sent.strftime("%m.%d / %H:%M")
else:
time_str = entry.date_sent.strftime("%H:%M")
session.msg("[%s] %s" % (time_str, entry.message))
def msg_cwho(session, channel_name):
"""
Sends a listing of subscribers to a channel given a channel name.
session: (SessionProtocol) A reference to the player session.
channel_name: (str) The channel's full name.
"""
session.msg("--- Users Listening to %s ---" % (channel_name,))
for plr_sess in get_cwho_list(channel_name):
session.msg(plr_sess.get_pobject().get_name(show_dbref=False))
session.msg("--- End Channel Listeners ---")
def get_cwho_list(channel_name, return_muted=False):
"""
Get all users on a channel.
channel_name: (string) The name of the channel.
return_muted: (bool) Return those who have the channel muted if True.
"""
sess_list = session_mgr.get_session_list()
return [sess for sess in sess_list if plr_has_channel(sess, channel_name, return_muted)]
def send_cmessage(channel_name, message):
"""
Sends a message to all players on the specified channel.
channel_name: (string) The name of the channel.
message: (string) Message to send.
"""
for user in get_cwho_list(channel_name, return_muted=False):
user.msg(message)
try:
chan_message = CommChannelMessage()
chan_message.channel = get_cobj_from_name(channel_name)
chan_message.message = message
chan_message.save()
except:
print "send_cmessage(): Can't find channel: %s" % (channel_name,)
def get_all_channels():
"""
Returns all channel objects.
"""
return CommChannel.objects.all()
def get_cobj_from_name(cname):
"""
Returns the channel's object when given a name.
"""
return CommChannel.objects.get(name=cname)
def create_channel(cdat):
"""
Create a new channel. cdat is a dictionary that contains the following keys.
REQUIRED KEYS:
* name: The name of the new channel.
* owner: The creator of the channel.
"""
new_chan = CommChannel()
new_chan.name = ansi.parse_ansi(cdat["name"], strip_ansi=True)
new_chan.ansi_name = "[%s]" % (ansi.parse_ansi(cdat["name"]),)
new_chan.set_owner(cdat["owner"])
new_chan.save()
return new_chan
def cname_search(search_text, exact=False):
"""
Searches for a particular channel name. Returns a QuerySet with the
results.
exact: (bool) Do an exact (case-insensitive) name match if true.
"""
if exact:
return CommChannel.objects.filter(name__iexact=search_text)
else:
return CommChannel.objects.filter(name__istartswith=search_text)