mirror of
https://github.com/osmarks/ngircd.git
synced 2025-10-31 05:52:59 +00:00
Merge branch 'ServerMode'
* ServerMode: Handle channel user modes 'a', 'h', and 'q' from remote servers Handle unknown channel modes on server links Handle unknown user modes on server links IRC_MODE(), Client_Mode(): code cleanup [2/2] Enlarge client user mode buffer, reduce client flags buffer Infom clients when other servers change their user modes IRC_MODE(), Client_Mode(): code cleanup [1/2]
This commit is contained in:
Alexander Barton
@@ -44,10 +44,10 @@
|
||||
see RFC 2812, section 1.2.1 */
|
||||
#define CLIENT_NAME_LEN 32 /* Max. length of "real names" */
|
||||
#define CLIENT_HOST_LEN 64 /* Max. host name length */
|
||||
#define CLIENT_MODE_LEN 9 /* Max. lenth of all client modes */
|
||||
#define CLIENT_MODE_LEN 16 /* Max. lenth of all client modes */
|
||||
#define CLIENT_INFO_LEN 64 /* Max. length of server info texts */
|
||||
#define CLIENT_AWAY_LEN 128 /* Max. length of away messages */
|
||||
#define CLIENT_FLAGS_LEN 100 /* Max. length of client flags */
|
||||
#define CLIENT_FLAGS_LEN 16 /* Max. length of client flags */
|
||||
|
||||
#define CHANNEL_NAME_LEN 51 /* Max. length of a channel name, see
|
||||
RFC 2812 section 1.3 */
|
||||
|
||||
@@ -50,25 +50,39 @@ static bool Send_ListChange PARAMS((const char *Mode, CLIENT *Prefix,
|
||||
CLIENT *Client, CHANNEL *Channel, const char *Mask));
|
||||
|
||||
|
||||
/**
|
||||
* Handler for the IRC "MODE" command.
|
||||
*
|
||||
* See RFC 2812 section 3.1.5 ("user mode message") and section 3.2.3
|
||||
* ("channel mode message"), and RFC 2811 section 4 ("channel modes").
|
||||
*
|
||||
* @param Client The client from which this command has been received.
|
||||
* @param Req Request structure with prefix and all parameters.
|
||||
* @returns CONNECTED or DISCONNECTED.
|
||||
*/
|
||||
GLOBAL bool
|
||||
IRC_MODE( CLIENT *Client, REQUEST *Req )
|
||||
{
|
||||
CLIENT *cl, *origin;
|
||||
CHANNEL *chan;
|
||||
|
||||
assert( Client != NULL );
|
||||
assert( Req != NULL );
|
||||
assert(Client != NULL);
|
||||
assert(Req != NULL);
|
||||
|
||||
/* No parameters? */
|
||||
if( Req->argc < 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
|
||||
if (Req->argc < 1)
|
||||
return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
|
||||
Client_ID(Client), Req->command);
|
||||
|
||||
/* Origin for answers */
|
||||
if( Client_Type( Client ) == CLIENT_SERVER )
|
||||
{
|
||||
origin = Client_Search( Req->prefix );
|
||||
if( ! origin ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
|
||||
}
|
||||
else origin = Client;
|
||||
if (Client_Type(Client) == CLIENT_SERVER) {
|
||||
origin = Client_Search(Req->prefix);
|
||||
if (!origin)
|
||||
return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
|
||||
Client_ID(Client),
|
||||
Req->prefix);
|
||||
} else
|
||||
origin = Client;
|
||||
|
||||
/* Channel or user mode? */
|
||||
cl = NULL; chan = NULL;
|
||||
@@ -88,178 +102,222 @@ IRC_MODE( CLIENT *Client, REQUEST *Req )
|
||||
} /* IRC_MODE */
|
||||
|
||||
|
||||
/**
|
||||
* Handle client mode requests
|
||||
*
|
||||
* @param Client The client from which this command has been received.
|
||||
* @param Req Request structure with prefix and all parameters.
|
||||
* @param Origin The originator of the MODE command (prefix).
|
||||
* @param Target The target (client) of this MODE command.
|
||||
* @returns CONNECTED or DISCONNECTED.
|
||||
*/
|
||||
static bool
|
||||
Client_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CLIENT *Target )
|
||||
{
|
||||
/* Handle client mode requests */
|
||||
|
||||
char the_modes[COMMAND_LEN], x[2], *mode_ptr;
|
||||
bool ok, set;
|
||||
int mode_arg;
|
||||
size_t len;
|
||||
|
||||
/* Is the client allowed to request or change the modes? */
|
||||
if( Client_Type( Client ) == CLIENT_USER )
|
||||
{
|
||||
if (Client_Type(Client) == CLIENT_USER) {
|
||||
/* Users are only allowed to manipulate their own modes! */
|
||||
if( Target != Client ) return IRC_WriteStrClient( Client, ERR_USERSDONTMATCH_MSG, Client_ID( Client ));
|
||||
if (Target != Client)
|
||||
return IRC_WriteStrClient(Client,
|
||||
ERR_USERSDONTMATCH_MSG,
|
||||
Client_ID(Client));
|
||||
}
|
||||
|
||||
/* Mode request: let's answer it :-) */
|
||||
if( Req->argc == 1 ) return IRC_WriteStrClient( Origin, RPL_UMODEIS_MSG, Client_ID( Origin ), Client_Modes( Target ));
|
||||
if (Req->argc == 1)
|
||||
return IRC_WriteStrClient(Origin, RPL_UMODEIS_MSG,
|
||||
Client_ID(Origin),
|
||||
Client_Modes(Target));
|
||||
|
||||
mode_arg = 1;
|
||||
mode_ptr = Req->argv[mode_arg];
|
||||
|
||||
/* Initial state: set or unset modes? */
|
||||
if( *mode_ptr == '+' ) set = true;
|
||||
else if( *mode_ptr == '-' ) set = false;
|
||||
else return IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG_MSG, Client_ID( Origin ));
|
||||
|
||||
/* Prepare reply string */
|
||||
if( set ) strcpy( the_modes, "+" );
|
||||
else strcpy( the_modes, "-" );
|
||||
if (*mode_ptr == '+') {
|
||||
set = true;
|
||||
strcpy(the_modes, "+");
|
||||
} else if (*mode_ptr == '-') {
|
||||
set = false;
|
||||
strcpy(the_modes, "-");
|
||||
} else
|
||||
return IRC_WriteStrClient(Origin, ERR_UMODEUNKNOWNFLAG_MSG,
|
||||
Client_ID(Origin));
|
||||
|
||||
x[1] = '\0';
|
||||
ok = CONNECTED;
|
||||
while( mode_ptr )
|
||||
{
|
||||
while (mode_ptr) {
|
||||
mode_ptr++;
|
||||
if( ! *mode_ptr )
|
||||
{
|
||||
if (!*mode_ptr) {
|
||||
/* Try next argument if there's any */
|
||||
mode_arg++;
|
||||
if( mode_arg < Req->argc ) mode_ptr = Req->argv[mode_arg];
|
||||
else break;
|
||||
if (mode_arg < Req->argc)
|
||||
mode_ptr = Req->argv[mode_arg];
|
||||
else
|
||||
break;
|
||||
}
|
||||
|
||||
switch( *mode_ptr )
|
||||
{
|
||||
case '+':
|
||||
case '-':
|
||||
if((( *mode_ptr == '+' ) && ( ! set )) || (( *mode_ptr == '-' ) && ( set )))
|
||||
{
|
||||
/* Action modifier ("+"/"-") must be changed ... */
|
||||
len = strlen( the_modes ) - 1;
|
||||
if(( the_modes[len] == '+' ) || ( the_modes[len] == '-' ))
|
||||
{
|
||||
/* Adjust last action modifier in result */
|
||||
the_modes[len] = *mode_ptr;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Append modifier character to result string */
|
||||
x[0] = *mode_ptr;
|
||||
strlcat( the_modes, x, sizeof( the_modes ));
|
||||
}
|
||||
if( *mode_ptr == '+' ) set = true;
|
||||
else set = false;
|
||||
switch(*mode_ptr) {
|
||||
case '+':
|
||||
case '-':
|
||||
if ((*mode_ptr == '+' && !set)
|
||||
|| (*mode_ptr == '-' && set)) {
|
||||
/* Action modifier ("+"/"-") must be changed */
|
||||
len = strlen(the_modes) - 1;
|
||||
if (the_modes[len] == '+'
|
||||
|| the_modes[len] == '-') {
|
||||
/* Last character in the "result
|
||||
* string" was an "action", so just
|
||||
* overwrite it with the new action */
|
||||
the_modes[len] = *mode_ptr;
|
||||
} else {
|
||||
/* Append new modifier character to
|
||||
* the resulting mode string */
|
||||
x[0] = *mode_ptr;
|
||||
strlcat(the_modes, x,
|
||||
sizeof(the_modes));
|
||||
}
|
||||
continue;
|
||||
if (*mode_ptr == '+')
|
||||
set = true;
|
||||
else
|
||||
set = false;
|
||||
}
|
||||
continue;
|
||||
}
|
||||
|
||||
/* Validate modes */
|
||||
x[0] = '\0';
|
||||
switch( *mode_ptr )
|
||||
{
|
||||
case 'i': /* Invisible */
|
||||
case 's': /* Server messages */
|
||||
case 'w': /* Wallops messages */
|
||||
x[0] = *mode_ptr;
|
||||
break;
|
||||
|
||||
case 'a': /* Away */
|
||||
if( Client_Type( Client ) == CLIENT_SERVER )
|
||||
{
|
||||
x[0] = 'a';
|
||||
Client_SetAway( Origin, DEFAULT_AWAY_MSG );
|
||||
}
|
||||
else ok = IRC_WriteStrClient( Origin, ERR_NOPRIVILEGES_MSG, Client_ID( Origin ));
|
||||
break;
|
||||
|
||||
case 'c': /* Receive connect notices
|
||||
* (only settable by IRC operators!) */
|
||||
if(!set || Client_OperByMe(Origin)
|
||||
|| Client_Type(Client) == CLIENT_SERVER)
|
||||
x[0] = 'c';
|
||||
else
|
||||
ok = IRC_WriteStrClient(Origin,
|
||||
switch (*mode_ptr) {
|
||||
case 'i': /* Invisible */
|
||||
case 's': /* Server messages */
|
||||
case 'w': /* Wallops messages */
|
||||
x[0] = *mode_ptr;
|
||||
break;
|
||||
case 'a': /* Away */
|
||||
if (Client_Type(Client) == CLIENT_SERVER) {
|
||||
x[0] = 'a';
|
||||
Client_SetAway(Origin, DEFAULT_AWAY_MSG);
|
||||
} else
|
||||
ok = IRC_WriteStrClient(Origin,
|
||||
ERR_NOPRIVILEGES_MSG,
|
||||
Client_ID(Origin));
|
||||
break;
|
||||
|
||||
case 'o': /* IRC operator (only unsettable!) */
|
||||
if(( ! set ) || ( Client_Type( Client ) == CLIENT_SERVER ))
|
||||
{
|
||||
Client_SetOperByMe( Target, false );
|
||||
x[0] = 'o';
|
||||
}
|
||||
else ok = IRC_WriteStrClient( Origin, ERR_NOPRIVILEGES_MSG, Client_ID( Origin ));
|
||||
break;
|
||||
|
||||
case 'r': /* Restricted (only settable) */
|
||||
if(( set ) || ( Client_Type( Client ) == CLIENT_SERVER )) x[0] = 'r';
|
||||
else ok = IRC_WriteStrClient( Origin, ERR_RESTRICTED_MSG, Client_ID( Origin ));
|
||||
break;
|
||||
|
||||
case 'x': /* Cloak hostname */
|
||||
if (Client_HasMode(Client, 'r'))
|
||||
ok = IRC_WriteStrClient(Origin,
|
||||
ERR_RESTRICTED_MSG,
|
||||
Client_ID(Origin));
|
||||
else
|
||||
x[0] = 'x';
|
||||
break;
|
||||
|
||||
default:
|
||||
Log( LOG_DEBUG, "Unknown mode \"%c%c\" from \"%s\"!?", set ? '+' : '-', *mode_ptr, Client_ID( Origin ));
|
||||
if( Client_Type( Client ) != CLIENT_SERVER ) ok = IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID( Origin ), set ? '+' : '-', *mode_ptr );
|
||||
break;
|
||||
case 'c': /* Receive connect notices
|
||||
* (only settable by IRC operators!) */
|
||||
if (!set || Client_Type(Client) == CLIENT_SERVER
|
||||
|| Client_OperByMe(Origin))
|
||||
x[0] = 'c';
|
||||
else
|
||||
ok = IRC_WriteStrClient(Origin,
|
||||
ERR_NOPRIVILEGES_MSG,
|
||||
Client_ID(Origin));
|
||||
break;
|
||||
case 'o': /* IRC operator (only unsettable!) */
|
||||
if (!set || Client_Type(Client) == CLIENT_SERVER) {
|
||||
Client_SetOperByMe(Target, false);
|
||||
x[0] = 'o';
|
||||
} else
|
||||
ok = IRC_WriteStrClient(Origin,
|
||||
ERR_NOPRIVILEGES_MSG,
|
||||
Client_ID(Origin));
|
||||
break;
|
||||
case 'r': /* Restricted (only settable) */
|
||||
if (set || Client_Type(Client) == CLIENT_SERVER)
|
||||
x[0] = 'r';
|
||||
else
|
||||
ok = IRC_WriteStrClient(Origin,
|
||||
ERR_RESTRICTED_MSG,
|
||||
Client_ID(Origin));
|
||||
break;
|
||||
case 'x': /* Cloak hostname */
|
||||
if (Client_HasMode(Client, 'r'))
|
||||
ok = IRC_WriteStrClient(Origin,
|
||||
ERR_RESTRICTED_MSG,
|
||||
Client_ID(Origin));
|
||||
else
|
||||
x[0] = 'x';
|
||||
break;
|
||||
default:
|
||||
if (Client_Type(Client) != CLIENT_SERVER) {
|
||||
Log(LOG_DEBUG,
|
||||
"Unknown mode \"%c%c\" from \"%s\"!?",
|
||||
set ? '+' : '-', *mode_ptr,
|
||||
Client_ID(Origin));
|
||||
ok = IRC_WriteStrClient(Origin,
|
||||
ERR_UMODEUNKNOWNFLAG2_MSG,
|
||||
Client_ID(Origin),
|
||||
set ? '+' : '-',
|
||||
*mode_ptr);
|
||||
x[0] = '\0';
|
||||
goto client_exit;
|
||||
} else {
|
||||
Log(LOG_DEBUG,
|
||||
"Handling unknown mode \"%c%c\" from \"%s\" for \"%s\" ...",
|
||||
set ? '+' : '-', *mode_ptr,
|
||||
Client_ID(Origin), Client_ID(Target));
|
||||
x[0] = *mode_ptr;
|
||||
}
|
||||
}
|
||||
if( ! ok ) break;
|
||||
|
||||
if (!ok)
|
||||
break;
|
||||
|
||||
/* Is there a valid mode change? */
|
||||
if( ! x[0] ) continue;
|
||||
if (!x[0])
|
||||
continue;
|
||||
|
||||
if( set )
|
||||
{
|
||||
/* Set mode */
|
||||
if( Client_ModeAdd( Target, x[0] )) strlcat( the_modes, x, sizeof( the_modes ));
|
||||
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Unset mode */
|
||||
if( Client_ModeDel( Target, x[0] )) strlcat( the_modes, x, sizeof( the_modes ));
|
||||
if (set) {
|
||||
if (Client_ModeAdd(Target, x[0]))
|
||||
strlcat(the_modes, x, sizeof(the_modes));
|
||||
} else {
|
||||
if (Client_ModeDel(Target, x[0]))
|
||||
strlcat(the_modes, x, sizeof(the_modes));
|
||||
}
|
||||
}
|
||||
client_exit:
|
||||
|
||||
/* Are there changed modes? */
|
||||
if( the_modes[1] )
|
||||
{
|
||||
if (the_modes[1]) {
|
||||
/* Remoce needless action modifier characters */
|
||||
len = strlen( the_modes ) - 1;
|
||||
if(( the_modes[len] == '+' ) || ( the_modes[len] == '-' )) the_modes[len] = '\0';
|
||||
len = strlen(the_modes) - 1;
|
||||
if (the_modes[len] == '+' || the_modes[len] == '-')
|
||||
the_modes[len] = '\0';
|
||||
|
||||
if( Client_Type( Client ) == CLIENT_SERVER )
|
||||
{
|
||||
if (Client_Type(Client) == CLIENT_SERVER) {
|
||||
/* Forward modes to other servers */
|
||||
IRC_WriteStrServersPrefix( Client, Origin, "MODE %s :%s", Client_ID( Target ), the_modes );
|
||||
}
|
||||
else
|
||||
{
|
||||
if (Client_Conn(Target) != NONE) {
|
||||
/* Remote server (service?) changed modes
|
||||
* for one of our clients. Inform it! */
|
||||
IRC_WriteStrClientPrefix(Target, Origin,
|
||||
"MODE %s :%s",
|
||||
Client_ID(Target),
|
||||
the_modes);
|
||||
}
|
||||
IRC_WriteStrServersPrefix(Client, Origin,
|
||||
"MODE %s :%s",
|
||||
Client_ID(Target),
|
||||
the_modes);
|
||||
} else {
|
||||
/* Send reply to client and inform other servers */
|
||||
ok = IRC_WriteStrClientPrefix( Client, Origin, "MODE %s :%s", Client_ID( Target ), the_modes );
|
||||
IRC_WriteStrServersPrefix( Client, Origin, "MODE %s :%s", Client_ID( Target ), the_modes );
|
||||
ok = IRC_WriteStrClientPrefix(Client, Origin,
|
||||
"MODE %s :%s",
|
||||
Client_ID(Target),
|
||||
the_modes);
|
||||
IRC_WriteStrServersPrefix(Client, Origin,
|
||||
"MODE %s :%s",
|
||||
Client_ID(Target),
|
||||
the_modes);
|
||||
}
|
||||
LogDebug("%s \"%s\": Mode change, now \"%s\".",
|
||||
Client_TypeText(Target), Client_Mask(Target),
|
||||
Client_Modes(Target));
|
||||
}
|
||||
|
||||
IRC_SetPenalty( Client, 1 );
|
||||
IRC_SetPenalty(Client, 1);
|
||||
return ok;
|
||||
} /* Client_Mode */
|
||||
|
||||
@@ -536,6 +594,16 @@ Channel_Mode(CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel)
|
||||
Channel_Name(Channel));
|
||||
break;
|
||||
/* --- Channel user modes --- */
|
||||
case 'a':
|
||||
case 'h':
|
||||
case 'q':
|
||||
if (Client_Type(Client) != CLIENT_SERVER) {
|
||||
connected = IRC_WriteStrClient(Origin,
|
||||
ERR_CHANOPRIVSNEEDED_MSG,
|
||||
Client_ID(Origin),
|
||||
Channel_Name(Channel));
|
||||
goto chan_exit;
|
||||
}
|
||||
case 'o': /* Channel operator */
|
||||
case 'v': /* Voice */
|
||||
if (arg_arg > mode_arg) {
|
||||
@@ -592,18 +660,25 @@ Channel_Mode(CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel)
|
||||
}
|
||||
break;
|
||||
default:
|
||||
Log(LOG_DEBUG,
|
||||
"Unknown mode \"%c%c\" from \"%s\" on %s!?",
|
||||
set ? '+' : '-', *mode_ptr, Client_ID(Origin),
|
||||
Channel_Name(Channel));
|
||||
if (Client_Type(Client) != CLIENT_SERVER)
|
||||
if (Client_Type(Client) != CLIENT_SERVER) {
|
||||
Log(LOG_DEBUG,
|
||||
"Unknown mode \"%c%c\" from \"%s\" on %s!?",
|
||||
set ? '+' : '-', *mode_ptr,
|
||||
Client_ID(Origin), Channel_Name(Channel));
|
||||
connected = IRC_WriteStrClient(Origin,
|
||||
ERR_UMODEUNKNOWNFLAG2_MSG,
|
||||
Client_ID(Origin),
|
||||
set ? '+' : '-', *mode_ptr);
|
||||
x[0] = '\0';
|
||||
goto chan_exit;
|
||||
} /* switch() */
|
||||
x[0] = '\0';
|
||||
goto chan_exit;
|
||||
} else {
|
||||
Log(LOG_DEBUG,
|
||||
"Handling unknown mode \"%c%c\" from \"%s\" on %s ...",
|
||||
set ? '+' : '-', *mode_ptr,
|
||||
Client_ID(Origin), Channel_Name(Channel));
|
||||
x[0] = *mode_ptr;
|
||||
}
|
||||
}
|
||||
|
||||
if (!connected)
|
||||
break;
|
||||
|
||||
Reference in New Issue
Block a user