]> arthur.barton.de Git - ngircd-alex.git/blobdiff - src/ngircd/irc-mode.c
Generate "METADATA host" commands on "MODE +/-x"
[ngircd-alex.git] / src / ngircd / irc-mode.c
index 71557201d8d938f4a5ff65416f50eb487f78333d..1cf19afc2bf437f19a2887509e12851c932a7951 100644 (file)
@@ -36,6 +36,8 @@
 #include "irc-mode.h"
 
 
+static void Announce_Client_Hostname PARAMS((CLIENT *Origin, CLIENT *Client));
+
 static bool Client_Mode PARAMS((CLIENT *Client, REQUEST *Req, CLIENT *Origin,
                                CLIENT *Target));
 static bool Channel_Mode PARAMS((CLIENT *Client, REQUEST *Req, CLIENT *Origin,
@@ -215,6 +217,7 @@ Client_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CLIENT *Target )
                /* Validate modes */
                x[0] = '\0';
                switch (*mode_ptr) {
+               case 'b': /* Block private msgs */
                case 'C': /* Only messages from clients sharing a channel */
                case 'i': /* Invisible */
                case 's': /* Server messages */
@@ -257,6 +260,15 @@ Client_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CLIENT *Target )
                                                        ERR_NOPRIVILEGES_MSG,
                                                        Client_ID(Origin));
                        break;
+               case 'q': /* KICK-protected user */
+                       if (!set || Client_Type(Client) == CLIENT_SERVER
+                           || Client_OperByMe(Origin))
+                               x[0] = 'q';
+                       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';
@@ -278,9 +290,15 @@ Client_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CLIENT *Target )
                                ok = IRC_WriteStrClient(Origin,
                                                        ERR_RESTRICTED_MSG,
                                                        Client_ID(Origin));
-                       else
+                       else if (!set || Conf_CloakHostModeX[0]
+                                || Client_Type(Client) == CLIENT_SERVER
+                                || Client_OperByMe(Client)) {
                                x[0] = 'x';
                                send_RPL_HOSTHIDDEN_MSG = true;
+                       } else
+                               ok = IRC_WriteStrClient(Origin,
+                                                       ERR_NOPRIVILEGES_MSG,
+                                                       Client_ID(Origin));
                        break;
                default:
                        if (Client_Type(Client) != CLIENT_SERVER) {
@@ -351,9 +369,7 @@ Client_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CLIENT *Target )
                                                  Client_ID(Target),
                                                  the_modes);
                        if (send_RPL_HOSTHIDDEN_MSG)
-                               IRC_WriteStrClient(Client, RPL_HOSTHIDDEN_MSG,
-                                                  Client_ID(Client),
-                                                  Client_HostnameCloaked(Client));
+                               Announce_Client_Hostname(Origin, Client);
                }
                LogDebug("%s \"%s\": Mode change, now \"%s\".",
                         Client_TypeText(Target), Client_Mask(Target),
@@ -365,6 +381,27 @@ Client_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CLIENT *Target )
 } /* Client_Mode */
 
 
+/**
+ * Announce changed client hostname in the network.
+ *
+ * @param Client The client of which the hostname changed.
+ */
+static void
+Announce_Client_Hostname(CLIENT *Origin, CLIENT *Client)
+{
+       assert(Client != NULL);
+
+       /* Inform the client itself */
+       IRC_WriteStrClient(Client, RPL_HOSTHIDDEN_MSG, Client_ID(Client),
+                          Client_HostnameCloaked(Client));
+
+       /* Inform other servers in the network */
+       IRC_WriteStrServersPrefixFlag(Origin, Client_ThisServer(), 'M',
+                                     "METADATA %s host :%s", Client_ID(Client),
+                                     Client_HostnameCloaked(Client));
+}
+
+
 static bool
 Channel_Mode_Answer_Request(CLIENT *Origin, CHANNEL *Channel)
 {
@@ -418,13 +455,16 @@ 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;
-       bool connected, set, skiponce, retval, onchannel, modeok, use_servermode;
+           argadd[CLIENT_PASS_LEN], *mode_ptr, *o_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;
        CLIENT *client;
        long l;
        size_t len;
 
+       is_halfop = is_op = is_admin = is_owner = is_machine = is_oper = false;
+
        if (Channel_IsModeless(Channel))
                return IRC_WriteStrClient(Client, ERR_NOCHANMODES_MSG,
                                Client_ID(Client), Channel_Name(Channel));
@@ -433,10 +473,20 @@ Channel_Mode(CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel)
        if (Req->argc <= 1)
                return Channel_Mode_Answer_Request(Origin, Channel);
 
-       Channel_CheckAdminRights(Channel, Client, Origin,
-                                &onchannel, &modeok, &use_servermode);
+       /* Check if origin is oper and opers can use mode */
+       use_servermode = Conf_OperServerMode;
+       if(Client_OperByMe(Client) && Conf_OperCanMode) {
+               is_oper = true;
+       }
+
+       /* Check if client is a server/service */
+       if(Client_Type(Client) == CLIENT_SERVER ||
+          Client_Type(Client) == CLIENT_SERVICE) {
+               is_machine = true;
+       }
 
-       if (!onchannel && !modeok)
+       /* Check if client is member of channel or an oper or an server/service */
+       if(!Channel_IsMemberOf(Channel, Client) && !is_oper && !is_machine)
                return IRC_WriteStrClient(Origin, ERR_NOTONCHANNEL_MSG,
                                          Client_ID(Origin),
                                          Channel_Name(Channel));
@@ -515,21 +565,46 @@ Channel_Mode(CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel)
                if (arg_arg >= Req->argc)
                        arg_arg = -1;
 
+               if(!is_machine) {
+                       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++;
+                       }
+               }
+
                /* Validate modes */
                x[0] = '\0';
                argadd[0] = '\0';
                client = NULL;
                switch (*mode_ptr) {
                /* --- Channel modes --- */
+               case 'R': /* Registered users only */
+               case 's': /* Secret channel */
+               case 'z': /* Secure connections only */
+                       if(!is_oper && !is_machine && !is_owner &&
+                          !is_admin && !is_op) {
+                               connected = IRC_WriteStrClient(Origin,
+                                       ERR_CHANOPRIVSNEEDED_MSG,
+                                       Client_ID(Origin), Channel_Name(Channel));
+                               goto chan_exit;
+                       }
                case 'i': /* Invite only */
+               case 'V': /* Invite disallow */
                case 'M': /* Only identified nicks can write */
                case 'm': /* Moderated */
                case 'n': /* Only members can write */
-               case 'R': /* Registered users only */
-               case 's': /* Secret channel */
+               case 'Q': /* No kicks */
                case 't': /* Topic locked */
-               case 'z': /* Secure connections only */
-                       if (modeok)
+                       if(is_oper || is_machine || is_owner ||
+                          is_admin || is_op || is_halfop)
                                x[0] = *mode_ptr;
                        else
                                connected = IRC_WriteStrClient(Origin,
@@ -540,7 +615,8 @@ Channel_Mode(CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel)
                        if (Mode_Limit_Reached(Client, mode_arg_count++))
                                goto chan_exit;
                        if (!set) {
-                               if (modeok)
+                               if (is_oper || is_machine || is_owner ||
+                                   is_admin || is_op || is_halfop)
                                        x[0] = *mode_ptr;
                                else
                                        connected = IRC_WriteStrClient(Origin,
@@ -550,7 +626,8 @@ Channel_Mode(CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel)
                                break;
                        }
                        if (arg_arg > mode_arg) {
-                               if (modeok) {
+                               if (is_oper || is_machine || is_owner ||
+                                   is_admin || is_op || is_halfop) {
                                        Channel_ModeDel(Channel, 'k');
                                        Channel_SetKey(Channel,
                                                       Req->argv[arg_arg]);
@@ -576,7 +653,8 @@ Channel_Mode(CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel)
                        if (Mode_Limit_Reached(Client, mode_arg_count++))
                                goto chan_exit;
                        if (!set) {
-                               if (modeok)
+                               if (is_oper || is_machine || is_owner ||
+                                   is_admin || is_op || is_halfop)
                                        x[0] = *mode_ptr;
                                else
                                        connected = IRC_WriteStrClient(Origin,
@@ -586,7 +664,8 @@ Channel_Mode(CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel)
                                break;
                        }
                        if (arg_arg > mode_arg) {
-                               if (modeok) {
+                               if (is_oper || is_machine || is_owner ||
+                                   is_admin || is_op || is_halfop) {
                                        l = atol(Req->argv[arg_arg]);
                                        if (l > 0 && l < 0xFFFF) {
                                                Channel_ModeDel(Channel, 'l');
@@ -611,61 +690,82 @@ Channel_Mode(CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel)
                        }
                        break;
                case 'O': /* IRC operators only */
-                       if (modeok) {
+                       if (set) {
                                /* Only IRC operators are allowed to
                                 * set the 'O' channel mode! */
-                               if (set && !(Client_OperByMe(Client)
-                                   || Client_Type(Client) == CLIENT_SERVER))
+                               if(is_oper || is_machine)
+                                       x[0] = 'O';
+                               else
                                        connected = IRC_WriteStrClient(Origin,
                                                ERR_NOPRIVILEGES_MSG,
                                                Client_ID(Origin));
-                               else
-                                       x[0] = 'O';
-                       } else
+                       } else if(is_oper || is_machine || is_owner ||
+                                 is_admin || is_op)
+                               x[0] = 'O';
+                       else
                                connected = IRC_WriteStrClient(Origin,
-                                               ERR_CHANOPRIVSNEEDED_MSG,
-                                               Client_ID(Origin),
-                                               Channel_Name(Channel));
-                               break;
+                                       ERR_CHANOPRIVSNEEDED_MSG,
+                                       Client_ID(Origin),
+                                       Channel_Name(Channel));
+                       break;
                case 'P': /* Persistent channel */
-                       if (modeok) {
+                       if (set) {
                                /* Only IRC operators are allowed to
                                 * set the 'P' channel mode! */
-                               if (set && !(Client_OperByMe(Client)
-                                   || Client_Type(Client) == CLIENT_SERVER))
+                               if(is_oper || is_machine)
+                                       x[0] = 'P';
+                               else
                                        connected = IRC_WriteStrClient(Origin,
                                                ERR_NOPRIVILEGES_MSG,
                                                Client_ID(Origin));
-                               else
-                                       x[0] = 'P';
-                       } else
+                       } else if(is_oper || is_machine || is_owner ||
+                                 is_admin || is_op)
+                               x[0] = 'P';
+                       else
                                connected = IRC_WriteStrClient(Origin,
                                        ERR_CHANOPRIVSNEEDED_MSG,
                                        Client_ID(Origin),
                                        Channel_Name(Channel));
                        break;
                /* --- Channel user modes --- */
-               case 'a':
-               case 'h':
-               case 'q':
-                       if (Client_Type(Client) != CLIENT_SERVER) {
+               case 'q': /* Owner */
+               case 'a': /* Channel admin */
+                       if(!is_oper && !is_machine && !is_owner && !is_admin) {
                                connected = IRC_WriteStrClient(Origin,
-                                       ERR_CHANOPRIVSNEEDED_MSG,
+                                       ERR_CHANOPPRIVTOOLOW_MSG,
                                        Client_ID(Origin),
                                        Channel_Name(Channel));
                                goto chan_exit;
                        }
                case 'o': /* Channel operator */
+                       if(!is_oper && !is_machine && !is_owner &&
+                          !is_admin && !is_op) {
+                               connected = IRC_WriteStrClient(Origin,
+                                       ERR_CHANOPRIVSNEEDED_MSG,
+                                       Client_ID(Origin),
+                                       Channel_Name(Channel));
+                               goto chan_exit;
+                       }
+               case 'h': /* Half Op */
+                       if(!is_oper && !is_machine && !is_owner &&
+                          !is_admin && !is_op) {
+                               connected = IRC_WriteStrClient(Origin,
+                                       ERR_CHANOPRIVSNEEDED_MSG,
+                                       Client_ID(Origin),
+                                       Channel_Name(Channel));
+                               goto chan_exit;
+                       }
                case 'v': /* Voice */
                        if (arg_arg > mode_arg) {
-                               if (modeok) {
+                               if (is_oper || is_machine || is_owner ||
+                                   is_admin || is_op || is_halfop) {
                                        client = Client_Search(Req->argv[arg_arg]);
                                        if (client)
                                                x[0] = *mode_ptr;
                                        else
-                                               connected = IRC_WriteStrClient(Client,
+                                               connected = IRC_WriteStrClient(Origin,
                                                        ERR_NOSUCHNICK_MSG,
-                                                       Client_ID(Client),
+                                                       Client_ID(Origin),
                                                        Req->argv[arg_arg]);
                                } else {
                                        connected = IRC_WriteStrClient(Origin,
@@ -690,7 +790,8 @@ Channel_Mode(CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel)
                                goto chan_exit;
                        if (arg_arg > mode_arg) {
                                /* modify list */
-                               if (modeok) {
+                               if (is_oper || is_machine || is_owner ||
+                                   is_admin || is_op || is_halfop) {
                                        connected = set
                                           ? Add_To_List(*mode_ptr, Origin,
                                                Client, Channel,