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Code Issues Releases Wiki Activity

Simplify mode checking on channels and users within a channel

Browse Source 
Add Channel_HasMode() and Channel_UserHasMode() and use it where
possible.
This commit is contained in:
Federico G. Schwindt 2013-08-04 18:28:04 +01:00
parent 672a167963
commit c74115f25c
8 changed files with 104 additions and 106 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

100
src/ngircd/channel.c
View File

@ -299,7 +299,6 @@ Channel_Kick(CLIENT *Peer, CLIENT *Target, CLIENT *Origin, const char *Name,
const char *Reason )
{
CHANNEL *chan;
char *ptr, *target_modes;
bool can_kick = false;
assert(Peer != NULL);
@ -336,7 +335,7 @@ Channel_Kick(CLIENT *Peer, CLIENT *Target, CLIENT *Origin, const char *Name,
if(Client_Type(Peer) == CLIENT_USER) {
/* Channel mode 'Q' and user mode 'q' on target: nobody but
* IRC Operators and servers can kick the target user */
if ((strchr(Channel_Modes(chan), 'Q')
if ((Channel_HasMode(chan, 'Q')
|| Client_HasMode(Target, 'q')
|| Client_Type(Target) == CLIENT_SERVICE)
&& !Client_HasMode(Origin, 'o')) {
@ -347,40 +346,28 @@ Channel_Kick(CLIENT *Peer, CLIENT *Target, CLIENT *Origin, const char *Name,
}
/* Check if client has the rights to kick target */
ptr = Channel_UserModes(chan, Peer);
target_modes = Channel_UserModes(chan, Target);
while(*ptr) {
/* Owner can kick everyone */
if ( *ptr == 'q') {
can_kick = true;
break;
}
/* Admin can't kick owner */
if ( *ptr == 'a' ) {
if (!strchr(target_modes, 'q')) {
can_kick = true;
break;
}
}
/* Op can't kick owner | admin */
if ( *ptr == 'o' ) {
if (!strchr(target_modes, 'q') &&
!strchr(target_modes, 'a')) {
can_kick = true;
break;
}
}
/* Half Op can't kick owner | admin | op */
if ( *ptr == 'h' ) {
if (!strchr(target_modes, 'q') &&
!strchr(target_modes, 'a') &&
!strchr(target_modes, 'o')) {
can_kick = true;
break;
}
}
ptr++;
}
/* Owner can kick everyone */
if (Channel_UserHasMode(chan, Peer, 'q'))
can_kick = true;
/* Admin can't kick owner */
else if (Channel_UserHasMode(chan, Peer, 'a') &&
!Channel_UserHasMode(chan, Target, 'q'))
can_kick = true;
/* Op can't kick owner | admin */
else if (Channel_UserHasMode(chan, Peer, 'o') &&
!Channel_UserHasMode(chan, Target, 'q') &&
!Channel_UserHasMode(chan, Target, 'a'))
can_kick = true;
/* Half Op can't kick owner | admin | op */
else if (Channel_UserHasMode(chan, Peer, 'h') &&
!Channel_UserHasMode(chan, Target, 'q') &&
!Channel_UserHasMode(chan, Target, 'a') &&
!Channel_UserHasMode(chan, Target, 'o'))
can_kick = true;
if(!can_kick) {
IRC_WriteStrClient(Origin, ERR_CHANOPPRIVTOOLOW_MSG,
@ -433,7 +420,7 @@ Channel_CountVisible (CLIENT *Client)
c = My_Channels;
while(c) {
if (Client) {
if (!strchr(Channel_Modes(c), 's')
if (!Channel_HasMode(c, 's')
|| Channel_IsMemberOf(c, Client))
count++;
} else
@ -499,6 +486,14 @@ Channel_Modes( CHANNEL *Chan )
} /* Channel_Modes */
GLOBAL bool
Channel_HasMode( CHANNEL *Chan, char Mode )
{
assert( Chan != NULL );
return strchr( Chan->modes, Mode ) != NULL;
} /* Channel_HasMode */
GLOBAL char *
Channel_Key( CHANNEL *Chan )
{
@ -636,7 +631,7 @@ Channel_ModeAdd( CHANNEL *Chan, char Mode )
assert( Chan != NULL );
x[0] = Mode; x[1] = '\0';
if( ! strchr( Chan->modes, x[0] ))
if( ! Channel_HasMode( Chan, x[0] ))
{
/* Channel does not have this mode yet, set it */
strlcat( Chan->modes, x, sizeof( Chan->modes ));
@ -745,6 +740,13 @@ Channel_UserModes( CHANNEL *Chan, CLIENT *Client )
} /* Channel_UserModes */
GLOBAL bool
Channel_UserHasMode( CHANNEL *Chan, CLIENT *Client, char Mode )
{
return strchr(Channel_UserModes(Chan, Client), Mode) != NULL;
} /* Channel_UserHasMode */
GLOBAL bool
Channel_IsMemberOf( CHANNEL *Chan, CLIENT *Client )
{
@ -873,15 +875,15 @@ Can_Send_To_Channel(CHANNEL *Chan, CLIENT *From)
if (Channel_IsMemberOf(Chan, From)) {
is_member = true;
if (strchr(Channel_UserModes(Chan, From), 'v'))
if (Channel_UserHasMode(Chan, From, 'v'))
has_voice = true;
if (strchr(Channel_UserModes(Chan, From), 'h'))
if (Channel_UserHasMode(Chan, From, 'h'))
is_halfop = true;
if (strchr(Channel_UserModes(Chan, From), 'o'))
if (Channel_UserHasMode(Chan, From, 'o'))
is_op = true;
if (strchr(Channel_UserModes(Chan, From), 'a'))
if (Channel_UserHasMode(Chan, From, 'a'))
is_chanadmin = true;
if (strchr(Channel_UserModes(Chan, From), 'q'))
if (Channel_UserHasMode(Chan, From, 'q'))
is_owner = true;
}
@ -891,17 +893,17 @@ Can_Send_To_Channel(CHANNEL *Chan, CLIENT *From)
* If channel mode n set: non-members cannot send to channel.
* If channel mode m set: need voice.
*/
if (strchr(Channel_Modes(Chan), 'n') && !is_member)
if (Channel_HasMode(Chan, 'n') && !is_member)
return false;
if (strchr(Channel_Modes(Chan), 'M') && !Client_HasMode(From, 'R')
if (Channel_HasMode(Chan, 'M') && !Client_HasMode(From, 'R')
&& !Client_HasMode(From, 'o'))
return false;
if (has_voice || is_halfop || is_op || is_chanadmin || is_owner)
return true;
if (strchr(Channel_Modes(Chan), 'm'))
if (Channel_HasMode(Chan, 'm'))
return false;
if (Lists_Check(&Chan->list_excepts, From))
@ -918,7 +920,7 @@ Channel_Write(CHANNEL *Chan, CLIENT *From, CLIENT *Client, const char *Command,
if (!Can_Send_To_Channel(Chan, From)) {
if (! SendErrors)
return CONNECTED; /* no error, see RFC 2812 */
if (strchr(Channel_Modes(Chan), 'M'))
if (Channel_HasMode(Chan, 'M'))
return IRC_WriteStrClient(From, ERR_NEEDREGGEDNICK_MSG,
Client_ID(From), Channel_Name(Chan));
else
@ -1089,7 +1091,7 @@ Remove_Client( int Type, CHANNEL *Chan, CLIENT *Client, CLIENT *Origin, const ch
}
/* When channel is empty and is not pre-defined, delete */
if( ! strchr( Channel_Modes( Chan ), 'P' ))
if( ! Channel_HasMode( Chan, 'P' ))
{
if( ! Get_First_Cl2Chan( NULL, Chan )) Delete_Channel( Chan );
}
@ -1217,7 +1219,7 @@ Channel_CheckKey(CHANNEL *Chan, CLIENT *Client, const char *Key)
assert(Client != NULL);
assert(Key != NULL);
if (!strchr(Chan->modes, 'k'))
if (!Channel_HasMode(Chan, 'k'))
return true;
if (*Key == '\0')
return false;

4
src/ngircd/channel.h
View File

@ -79,7 +79,6 @@ GLOBAL unsigned long Channel_MemberCount PARAMS(( CHANNEL *Chan ));
GLOBAL int Channel_CountForUser PARAMS(( CLIENT *Client ));
GLOBAL const char *Channel_Name PARAMS(( const CHANNEL *Chan ));
GLOBAL char *Channel_Modes PARAMS(( CHANNEL *Chan ));
GLOBAL char *Channel_Topic PARAMS(( CHANNEL *Chan ));
GLOBAL char *Channel_Key PARAMS(( CHANNEL *Chan ));
GLOBAL unsigned long Channel_MaxUsers PARAMS(( CHANNEL *Chan ));
@ -106,9 +105,12 @@ GLOBAL bool Channel_IsValidName PARAMS(( const char *Name ));
GLOBAL bool Channel_ModeAdd PARAMS(( CHANNEL *Chan, char Mode ));
GLOBAL bool Channel_ModeDel PARAMS(( CHANNEL *Chan, char Mode ));
GLOBAL bool Channel_HasMode PARAMS(( CHANNEL *Chan, char Mode ));
GLOBAL char *Channel_Modes PARAMS(( CHANNEL *Chan ));
GLOBAL bool Channel_UserModeAdd PARAMS(( CHANNEL *Chan, CLIENT *Client, char Mode ));
GLOBAL bool Channel_UserModeDel PARAMS(( CHANNEL *Chan, CLIENT *Client, char Mode ));
GLOBAL bool Channel_UserHasMode PARAMS(( CHANNEL *Chan, CLIENT *Client, char Mode ));
GLOBAL char *Channel_UserModes PARAMS(( CHANNEL *Chan, CLIENT *Client ));
GLOBAL bool Channel_IsMemberOf PARAMS(( CHANNEL *Chan, CLIENT *Client ));

34
src/ngircd/irc-channel.c
View File

@ -82,10 +82,9 @@ join_allowed(CLIENT *Client, CHANNEL *chan, const char *channame,
const char *key)
{
bool is_invited, is_banned, is_exception;
const char *channel_modes;
/* Allow IRC operators to overwrite channel limits */
if (strchr(Client_Modes(Client), 'o'))
if (Client_HasMode(Client, 'o'))
return true;
is_banned = Lists_Check(Channel_GetListBans(chan), Client);
@ -99,8 +98,7 @@ join_allowed(CLIENT *Client, CHANNEL *chan, const char *channame,
return false;
}
channel_modes = Channel_Modes(chan);
if (strchr(channel_modes, 'i') && !is_invited) {
if (Channel_HasMode(chan, 'i') && !is_invited) {
/* Channel is "invite-only" and client is not on invite list */
IRC_WriteStrClient(Client, ERR_INVITEONLYCHAN_MSG,
Client_ID(Client), channame);
@ -115,7 +113,7 @@ join_allowed(CLIENT *Client, CHANNEL *chan, const char *channame,
return false;
}
if (strchr(channel_modes, 'l') &&
if (Channel_HasMode(chan, 'l') &&
(Channel_MaxUsers(chan) <= Channel_MemberCount(chan))) {
/* There are more clints joined to this channel than allowed */
IRC_WriteStrClient(Client, ERR_CHANNELISFULL_MSG,
@ -123,7 +121,7 @@ join_allowed(CLIENT *Client, CHANNEL *chan, const char *channame,
return false;
}
if (strchr(channel_modes, 'z') && !Conn_UsesSSL(Client_Conn(Client))) {
if (Channel_HasMode(chan, 'z') && !Conn_UsesSSL(Client_Conn(Client))) {
/* Only "secure" clients are allowed, but clients doesn't
* use SSL encryption */
IRC_WriteStrClient(Client, ERR_SECURECHANNEL_MSG,
@ -131,14 +129,14 @@ join_allowed(CLIENT *Client, CHANNEL *chan, const char *channame,
return false;
}
if (strchr(channel_modes, 'O') && !Client_OperByMe(Client)) {
if (Channel_HasMode(chan, 'O') && !Client_OperByMe(Client)) {
/* Only IRC operators are allowed! */
IRC_WriteStrClient(Client, ERR_OPONLYCHANNEL_MSG,
Client_ID(Client), channame);
return false;
}
if (strchr(channel_modes, 'R') && !strchr(Client_Modes(Client), 'R')) {
if (Channel_HasMode(chan, 'R') && !Client_HasMode(Client, 'R')) {
/* Only registered users are allowed! */
IRC_WriteStrClient(Client, ERR_REGONLYCHANNEL_MSG,
Client_ID(Client), channame);
@ -167,8 +165,8 @@ join_set_channelmodes(CHANNEL *chan, CLIENT *target, const char *flags)
/* If the channel is persistent (+P) and client is an IRC op:
* make client chanop, if not disabled in configuration. */
if (strchr(Channel_Modes(chan), 'P') && Conf_OperChanPAutoOp
&& strchr(Client_Modes(target), 'o'))
if (Channel_HasMode(chan, 'P') && Conf_OperChanPAutoOp
&& Client_HasMode(target, 'o'))
Channel_UserModeAdd(chan, target, 'o');
} /* join_set_channelmodes */
@ -530,13 +528,13 @@ IRC_TOPIC( CLIENT *Client, REQUEST *Req )
Channel_Name(chan));
}
if (strchr(Channel_Modes(chan), 't')) {
if (Channel_HasMode(chan, 't')) {
/* Topic Lock. Is the user a channel op or IRC operator? */
if(!topic_power &&
!strchr(Channel_UserModes(chan, from), 'h') &&
!strchr(Channel_UserModes(chan, from), 'o') &&
!strchr(Channel_UserModes(chan, from), 'a') &&
!strchr(Channel_UserModes(chan, from), 'q'))
!Channel_UserHasMode(chan, from, 'h') &&
!Channel_UserHasMode(chan, from, 'o') &&
!Channel_UserHasMode(chan, from, 'a') &&
!Channel_UserHasMode(chan, from, 'q'))
return IRC_WriteStrClient(from, ERR_CHANOPRIVSNEEDED_MSG,
Client_ID(from),
Channel_Name(chan));
@ -619,7 +617,7 @@ IRC_LIST( CLIENT *Client, REQUEST *Req )
/* Check search pattern */
if (MatchCaseInsensitive(pattern, Channel_Name(chan))) {
/* Gotcha! */
if (!strchr(Channel_Modes(chan), 's')
if (!Channel_HasMode(chan, 's')
|| Channel_IsMemberOf(chan, from)
|| (!Conf_MorePrivacy && Client_OperByMe(Client))) {
if ((Conf_MaxListSize > 0)
@ -697,9 +695,9 @@ IRC_CHANINFO( CLIENT *Client, REQUEST *Req )
Channel_SetModes(chan, &Req->argv[1][1]);
if(Req->argc == 5) {
if(strchr(Channel_Modes(chan), 'k'))
if(Channel_HasMode(chan, 'k'))
Channel_SetKey(chan, Req->argv[2]);
if(strchr(Channel_Modes(chan), 'l'))
if(Channel_HasMode(chan, 'l'))
Channel_SetMaxUsers(chan, atol(Req->argv[3]));
} else {
/* Delete modes which we never want to inherit */

16
src/ngircd/irc-info.c
View File

@ -165,7 +165,7 @@ IRC_WHO_Channel(CLIENT *Client, CHANNEL *Chan, bool OnlyOps)
is_member = Channel_IsMemberOf(Chan, Client);
/* Secret channel? */
if (!is_member && strchr(Channel_Modes(Chan), 's'))
if (!is_member && Channel_HasMode(Chan, 's'))
return IRC_WriteStrClient(Client, RPL_ENDOFWHO_MSG,
Client_ID(Client), Channel_Name(Chan));
@ -174,11 +174,11 @@ IRC_WHO_Channel(CLIENT *Client, CHANNEL *Chan, bool OnlyOps)
c = Channel_GetClient(cl2chan);
client_modes = Client_Modes(c);
is_ircop = strchr(client_modes, 'o') != NULL;
is_ircop = Client_HasMode(c, 'o');
if (OnlyOps && !is_ircop)
continue;
is_visible = strchr(client_modes, 'i') == NULL;
is_visible = Client_HasMode(c, 'i');
if (is_member || is_visible) {
strlcpy(flags, who_flags_status(client_modes),
sizeof(flags));
@ -275,7 +275,7 @@ IRC_WHO_Mask(CLIENT *Client, char *Mask, bool OnlyOps)
break;
strlcpy(flags, who_flags_status(Client_Modes(c)), sizeof(flags));
if (strchr(Client_Modes(c), 'o'))
if (Client_HasMode(c, 'o'))
strlcat(flags, "*", sizeof(flags));
if (!write_whoreply(Client, c, "*", flags))
@ -330,7 +330,7 @@ IRC_WHOIS_SendReply(CLIENT *Client, CLIENT *from, CLIENT *c)
cl2chan = Channel_NextChannelOf(c, cl2chan);
/* Secret channel? */
if (strchr(Channel_Modes(chan), 's')
if (Channel_HasMode(chan, 's')
&& !Channel_IsMemberOf(chan, Client))
continue;
@ -833,7 +833,7 @@ IRC_NAMES( CLIENT *Client, REQUEST *Req )
while (c) {
if (Client_Type(c) == CLIENT_USER
&& Channel_FirstChannelOf(c) == NULL
&& !strchr(Client_Modes(c), 'i'))
&& !Client_HasMode(c, 'i'))
{
/* its a user, concatenate ... */
if (rpl[strlen(rpl) - 1] != ':')
@ -1530,7 +1530,7 @@ IRC_Send_NAMES(CLIENT * Client, CHANNEL * Chan)
return CONNECTED;
/* Secret channel? */
if (!is_member && strchr(Channel_Modes(Chan), 's'))
if (!is_member && Channel_HasMode(Chan, 's'))
return CONNECTED;
snprintf(str, sizeof(str), RPL_NAMREPLY_MSG, Client_ID(Client), "=",
@ -1539,7 +1539,7 @@ IRC_Send_NAMES(CLIENT * Client, CHANNEL * Chan)
while (cl2chan) {
cl = Channel_GetClient(cl2chan);
if (strchr(Client_Modes(cl), 'i'))
if (Client_HasMode(cl, 'i'))
is_visible = false;
else
is_visible = true;

22
src/ngircd/irc-mode.c
View File

@ -436,7 +436,7 @@ static bool
Channel_Mode(CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel)
{
char the_modes[COMMAND_LEN], the_args[COMMAND_LEN], x[2],
argadd[CLIENT_PASS_LEN], *mode_ptr, *o_mode_ptr;
argadd[CLIENT_PASS_LEN], *mode_ptr;
bool connected, set, skiponce, retval, use_servermode,
is_halfop, is_op, is_admin, is_owner, is_machine, is_oper;
int mode_arg, arg_arg, mode_arg_count = 0;
@ -547,18 +547,14 @@ Channel_Mode(CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel)
arg_arg = -1;
if(!is_machine && !is_oper) {
o_mode_ptr = Channel_UserModes(Channel, Client);
while( *o_mode_ptr ) {
if ( *o_mode_ptr == 'q')
is_owner = true;
if ( *o_mode_ptr == 'a')
is_admin = true;
if ( *o_mode_ptr == 'o')
is_op = true;
if ( *o_mode_ptr == 'h')
is_halfop = true;
o_mode_ptr++;
}
if (Channel_UserHasMode(Channel, Client, 'q'))
is_owner = true;
if (Channel_UserHasMode(Channel, Client, 'a'))
is_admin = true;
if (Channel_UserHasMode(Channel, Client, 'o'))
is_op = true;
if (Channel_UserHasMode(Channel, Client, 'h'))
is_halfop = true;
}
/* Validate modes */

14
src/ngircd/irc-op.c
View File

@ -162,17 +162,17 @@ IRC_INVITE(CLIENT *Client, REQUEST *Req)
return IRC_WriteStrClient(from, ERR_NOTONCHANNEL_MSG, Client_ID(Client), Req->argv[1]);
/* Is the channel "invite-disallow"? */
if (strchr(Channel_Modes(chan), 'V'))
if (Channel_HasMode(chan, 'V'))
return IRC_WriteStrClient(from, ERR_NOINVITE_MSG,
Client_ID(from), Channel_Name(chan));
/* Is the channel "invite-only"? */
if (strchr(Channel_Modes(chan), 'i')) {
if (Channel_HasMode(chan, 'i')) {
/* Yes. The user must be channel owner/admin/operator/halfop! */
if (!strchr(Channel_UserModes(chan, from), 'q') &&
!strchr(Channel_UserModes(chan, from), 'a') &&
!strchr(Channel_UserModes(chan, from), 'o') &&
!strchr(Channel_UserModes(chan, from), 'h'))
if (!Channel_UserHasMode(chan, from, 'q') &&
!Channel_UserHasMode(chan, from, 'a') &&
!Channel_UserHasMode(chan, from, 'o') &&
!Channel_UserHasMode(chan, from, 'h'))
return IRC_WriteStrClient(from, ERR_CHANOPRIVSNEEDED_MSG,
Client_ID(from), Channel_Name(chan));
remember = true;
@ -215,7 +215,7 @@ IRC_INVITE(CLIENT *Client, REQUEST *Req)
Client_ID(from), Req->argv[0], colon_if_necessary, Req->argv[1]))
return DISCONNECTED;
if (strchr(Client_Modes(target), 'a') &&
if (Client_HasMode(target, 'a') &&
!IRC_WriteStrClient(from, RPL_AWAY_MSG, Client_ID(from),
Client_ID(target), Client_Away(target)))
return DISCONNECTED;

6
src/ngircd/irc.c
View File

@ -329,7 +329,7 @@ IRC_TRACE(CLIENT *Client, REQUEST *Req)
return DISCONNECTED;
}
if (Client_Type(c) == CLIENT_USER
&& strchr(Client_Modes(c), 'o')) {
&& Client_HasMode(c, 'o')) {
/* IRC Operator */
if (!IRC_WriteStrClient(from,
RPL_TRACEOPERATOR_MSG,
@ -652,7 +652,7 @@ Send_Message(CLIENT * Client, REQUEST * Req, int ForceType, bool SendErrors)
}
if (SendErrors && (Client_Type(Client) != CLIENT_SERVER)
&& strchr(Client_Modes(cl), 'a')) {
&& Client_HasMode(cl, 'a')) {
/* Target is away */
if (!IRC_WriteStrClient(from, RPL_AWAY_MSG,
Client_ID(from),
@ -708,7 +708,7 @@ Send_Message_Mask(CLIENT * from, char * command, char * targetMask,
cl = NULL;
if (strchr(Client_Modes(from), 'o') == NULL) {
if (!Client_HasMode(from, 'o')) {
if (!SendErrors)
return true;
return IRC_WriteStrClient(from, ERR_NOPRIVILEGES_MSG,

14
src/ngircd/numeric.c
View File

@ -68,15 +68,15 @@ Announce_Channel(CLIENT *Client, CHANNEL *Chan)
strlcat(str, ",", sizeof(str));
/* Prepare user prefix (ChanOp, voiced, ...) */
if (xop && strchr(Channel_UserModes(Chan, cl), 'q'))
if (xop && Channel_UserHasMode(Chan, cl, 'q'))
strlcat(str, "~", sizeof(str));
if (xop && strchr(Channel_UserModes(Chan, cl), 'a'))
if (xop && Channel_UserHasMode(Chan, cl, 'a'))
strlcat(str, "&", sizeof(str));
if (strchr(Channel_UserModes(Chan, cl), 'o'))
if (Channel_UserHasMode(Chan, cl, 'o'))
strlcat(str, "@", sizeof(str));
if (xop && strchr(Channel_UserModes(Chan, cl), 'h'))
if (xop && Channel_UserHasMode(Chan, cl, 'h'))
strlcat(str, "%", sizeof(str));
if (strchr(Channel_UserModes(Chan, cl), 'v'))
if (Channel_UserHasMode(Chan, cl, 'v'))
strlcat(str, "+", sizeof(str));
strlcat(str, Client_ID(cl), sizeof(str));
@ -232,8 +232,8 @@ Send_CHANINFO(CLIENT * Client, CHANNEL * Chan)
if (!*modes && !*topic)
return CONNECTED;
has_k = strchr(modes, 'k') != NULL;
has_l = strchr(modes, 'l') != NULL;
has_k = Channel_HasMode(Chan, 'k');
has_l = Channel_HasMode(Chan, 'l');
/* send CHANINFO */
if (!has_k && !has_l) {