mirror of
https://github.com/matrix-construct/construct
synced 2024-11-15 22:41:12 +01:00
254 lines
9.6 KiB
Text
254 lines
9.6 KiB
Text
|
|
||
|
|
send.c re-work
|
||
|
|
|
||
|
|
PREFIXES
|
||
|
|
========
|
||
|
|
|
||
|
|
Server prefixes are the ":%s" strings at the beginning of messages.
|
||
|
|
They are used by servers to route the message properly and by servers to
|
||
|
|
local clients to update their idea of who is whom.
|
||
|
|
|
||
|
|
":nick!user@host" is a prefix ":name" where name is either a nick
|
||
|
|
or name of a server is another valid prefix.
|
||
|
|
|
||
|
|
Typical prefix for a local client to a channel:
|
||
|
|
|
||
|
|
":Dianora!db@irc.db.net"
|
||
|
|
|
||
|
|
for a prefix to a remote server:
|
||
|
|
":Dianora"
|
||
|
|
|
||
|
|
e.g. as seen locally on a channel:
|
||
|
|
|
||
|
|
":Dianora!db@irc.db.net PRIVMSG #us-opers :ON TOP OF ...\r\n"
|
||
|
|
|
||
|
|
e.g. as seen sent to a remote server:
|
||
|
|
":Dianora PRIVMSG #us-opers :ON TOP OF ...\r\n"
|
||
|
|
|
||
|
|
It has been argued that full prefixes sent locally are a waste of bandwidth
|
||
|
|
(Isomer from Undernet has argued this). i.e. instead of sending:
|
||
|
|
":nick!user@host" for a local prefix, one could just send ":nick"..
|
||
|
|
Unfortunately, this breaks many clients badly. Personally I feel that
|
||
|
|
until clients are updated to understand that a full prefix isn't always
|
||
|
|
going to be sent, that this should be held off on.
|
||
|
|
|
||
|
|
As much as possible, prefix generation is now moved "upstairs" as
|
||
|
|
much as possible. i.e. if its known its a local client only, then the
|
||
|
|
onus of the prefix generation, is the users, not hidden in send.c
|
||
|
|
This allows somewhat faster code to be written, as the prefix doesn't
|
||
|
|
have to be regenerated over and over again.
|
||
|
|
|
||
|
|
Prefixes aren't sent in all cases, such as a new user using NICK
|
||
|
|
A prefix is needed when it must be routed.
|
||
|
|
|
||
|
|
i.e.
|
||
|
|
|
||
|
|
NICK newnick
|
||
|
|
|
||
|
|
There is obviously no prefix needed from a locally connected client.
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
FUNCTIONS
|
||
|
|
=========
|
||
|
|
|
||
|
|
sendto_one() - Should be used for _local_ clients only
|
||
|
|
it expects the prefix to be pre-built by user.
|
||
|
|
|
||
|
|
usage - sendto_one(struct Client *to, char *pattern, ...);
|
||
|
|
|
||
|
|
typical use:
|
||
|
|
|
||
|
|
sendto_one(acptr,":%s NOTICE %s :I'm tired", me.name,
|
||
|
|
acptr->name);
|
||
|
|
Note: This was from a server "me" hence only one
|
||
|
|
name in prefix.
|
||
|
|
|
||
|
|
This would be an example of a client sptr, noticing
|
||
|
|
acptr IF acptr is known to be a local client:
|
||
|
|
|
||
|
|
sendto_one(acptr,":%s!%s@%s NOTICE %s :You there?",
|
||
|
|
sptr->name,
|
||
|
|
sptr->username,
|
||
|
|
sptr->host,
|
||
|
|
acptr->name);
|
||
|
|
|
||
|
|
sendto_one_prefix()
|
||
|
|
- Sends a message to a remote client, with proper
|
||
|
|
prefix and target (name or UID).
|
||
|
|
usage - sendto_one_prefix(struct Client *target_p,
|
||
|
|
struct Client *source_p,
|
||
|
|
const char *command,
|
||
|
|
const char *pattern, ...)
|
||
|
|
|
||
|
|
typical use:
|
||
|
|
|
||
|
|
sendto_one_prefix(target_p, source_p, "INVITE", ":%s",
|
||
|
|
chptr->chname);
|
||
|
|
|
||
|
|
|
||
|
|
sendto_one_notice()
|
||
|
|
- Sends a notice from this server to target. Target may
|
||
|
|
be a local or remote client.
|
||
|
|
Prefix and target are chosen based on TS6 capability.
|
||
|
|
|
||
|
|
typical use:
|
||
|
|
|
||
|
|
sendto_one_notice(source_p, ":You suck. Yes, really.");
|
||
|
|
|
||
|
|
sendto_one_numeric()
|
||
|
|
- Sends a numeric from this server to target. Target may
|
||
|
|
be a local or remote client.
|
||
|
|
Prefix and target are chosen based on TS6 capability.
|
||
|
|
|
||
|
|
typical use:
|
||
|
|
|
||
|
|
sendto_one_numeric(source_p, RPL_STATSDEBUG,
|
||
|
|
"p :%u staff members", count);
|
||
|
|
|
||
|
|
sendto_channel_flags()
|
||
|
|
- This function sends a var args message to a channel globally,
|
||
|
|
except to the client specified as "one", the prefix
|
||
|
|
is built by this function on the fly as it has to
|
||
|
|
be sent both to local clients on this server and to
|
||
|
|
remote servers.
|
||
|
|
For type use one of:
|
||
|
|
ONLY_SERVERS ALL_MEMBERS ONLY_CHANOPS ONLY_CHANOPSVOICED
|
||
|
|
If type is not ALL_MEMBERS it's not sent to not-CHW-capable
|
||
|
|
servers.
|
||
|
|
Deaf (umode +D) clients are always skipped.
|
||
|
|
|
||
|
|
usage - sendto_channel_flags(struct Client *one,
|
||
|
|
int type,
|
||
|
|
struct Client *from,
|
||
|
|
struct Channel *chptr,
|
||
|
|
const char *pattern, ... );
|
||
|
|
|
||
|
|
sendto_channel_butone(cptr, ALL_MEMBERS, sptr, chptr
|
||
|
|
"PRIVMSG %s :HI!",
|
||
|
|
chptr->chname);
|
||
|
|
|
||
|
|
e.g. if channel message is coming from "cptr"
|
||
|
|
it must not be sent back to cptr.
|
||
|
|
|
||
|
|
|
||
|
|
sendto_server()
|
||
|
|
- This function sends specified var args message
|
||
|
|
to all connected servers except the client "one"
|
||
|
|
which have all of "caps" capabilities but none
|
||
|
|
of "nocaps" capabilities.
|
||
|
|
|
||
|
|
If "chptr" is not NULL and is a local channel,
|
||
|
|
nothing is sent.
|
||
|
|
|
||
|
|
usage - sendto_server(struct Client *one,
|
||
|
|
struct Channel *chptr,
|
||
|
|
unsigned long caps,
|
||
|
|
unsigned long nocaps,
|
||
|
|
const char *format, ... );
|
||
|
|
|
||
|
|
sendto_common_channels_local()
|
||
|
|
- This function is used only by m_nick and exit_one_client
|
||
|
|
its used to propagate nick changes to all channels user
|
||
|
|
is in, and QUIT messages to all channels user is in.
|
||
|
|
As it only sends to local clients, prefix generation
|
||
|
|
is left to the user. It also sends the message to the
|
||
|
|
user if the user isn't on any channels.
|
||
|
|
|
||
|
|
usage - sendto_common_channels_local(struct Client *user,
|
||
|
|
const char *pattern,
|
||
|
|
...);
|
||
|
|
|
||
|
|
sendto_channel_local()
|
||
|
|
- This function is used to send only locally, never
|
||
|
|
to remote servers. This is useful when removing
|
||
|
|
local chanops, or adding a local chanop. MODE/SJOIN
|
||
|
|
sent to remote server allows that server to propagate
|
||
|
|
mode changes to its clients locally.
|
||
|
|
The message is also sent to deaf (umode +D) clients.
|
||
|
|
|
||
|
|
usage - sendto_channel_local(int type,
|
||
|
|
struct Channel *chptr,
|
||
|
|
const char *pattern, ... );
|
||
|
|
|
||
|
|
prefix must be pre-built. type is a flag
|
||
|
|
denoting ONE of
|
||
|
|
ALL_MEMBERS - all members locally are sent to
|
||
|
|
ONLY_CHANOPS_VOICED - only chanops and voiced see this
|
||
|
|
ONLY_CHANOPS - only chanops see this
|
||
|
|
|
||
|
|
|
||
|
|
sendto_match_butone()
|
||
|
|
- only used for the old style oper masking
|
||
|
|
i.e. /msg #hostmask which in hyb7 is /msg $#hostmask
|
||
|
|
or /msg $servermask in hyb7 /msg $$servermask
|
||
|
|
|
||
|
|
usage - sendto_match_butone(struct Client *one,
|
||
|
|
struct Client *source_p,
|
||
|
|
char *mask,
|
||
|
|
int what,
|
||
|
|
const char *pattern, ... );
|
||
|
|
|
||
|
|
one is the client not to send to
|
||
|
|
mask is the actual mask
|
||
|
|
what is either MATCH_HOST or MATCH_SERVER
|
||
|
|
|
||
|
|
sendto_match_servs()
|
||
|
|
- Allows sending a message to servers whose names match
|
||
|
|
the given mask. A message is also sent to non-matching
|
||
|
|
servers which have matching servers behind them.
|
||
|
|
Used for ENCAP, remote kline, etc.
|
||
|
|
No message is sent to source_p->from.
|
||
|
|
|
||
|
|
usage - sendto_match_servs(struct Client *source_p,
|
||
|
|
const char *mask,
|
||
|
|
int cap, int nocap,
|
||
|
|
const char *pattern, ...);
|
||
|
|
|
||
|
|
sendto_anywhere()
|
||
|
|
- Allows the sending of a message to any client on the net
|
||
|
|
without knowing whether its local or remote. The penalty
|
||
|
|
is the calculation of a run-time prefix.
|
||
|
|
It is less efficient then sendto_one()
|
||
|
|
|
||
|
|
usage - sendto_anywhere(struct Client *to,
|
||
|
|
struct Client *from,
|
||
|
|
const char *command,
|
||
|
|
const char *pattern, ...);
|
||
|
|
|
||
|
|
e.g.
|
||
|
|
sendto_anywhere(target_p, source_p,
|
||
|
|
"PRIVMSG", ":Hi, Where ever you are");
|
||
|
|
|
||
|
|
sendto_realops_flags()
|
||
|
|
- combines old sendto_realops and sendto_realops_flags
|
||
|
|
sends specified message to opers locally only
|
||
|
|
depending on umodes. UMODE_ALL is UMODE_SERVNOTICE.
|
||
|
|
the message is sent as a server notice, prefixed with
|
||
|
|
"*** Notice -- ".
|
||
|
|
|
||
|
|
usage - sendto_realops_flags(int flags,
|
||
|
|
const char *pattern, ... );
|
||
|
|
|
||
|
|
e.g.
|
||
|
|
sendto_realops_flags(UMODE_ALL,
|
||
|
|
"Don't eat the yellow snow");
|
||
|
|
|
||
|
|
sendto_wallops_flags()
|
||
|
|
- sends specified message to opers/users locally,
|
||
|
|
depending on umodes. used for messages that need
|
||
|
|
to be in wallops form
|
||
|
|
- some policy decisions about who gets what live in here
|
||
|
|
|
||
|
|
usage - sendto_wallops_flags(int flags,
|
||
|
|
struct Client *, const char *patterm ...);
|
||
|
|
|
||
|
|
e.g.
|
||
|
|
sendto_wallops_flags(UMODE_LOCOPS,
|
||
|
|
sptr, "Message");
|
||
|
|
|
||
|
|
-- Diane Bruce
|
||
|
|
Updated Jan 2006 by jilles with ratbox and late hybrid7 changes
|
||
|
|
|
||
|
|
$Id: send.txt 587 2006-01-27 19:45:11Z jilles $
|