fix to previous commit
[citadel.git] / citadel / modules / rwho / serv_rwho.c
index d8a1285babaf72f612b672d2896d3fe81a161e36..3dca6c4365de8c0f55f98eab2ff4cea81d97b74a 100644 (file)
@@ -1,9 +1,17 @@
 /*
- * $Id$
- *
- * This module implementsserver commands related to the display and
+ * This module implements server commands related to the display and
  * manipulation of the "Who's online" list.
  *
+ * Copyright (c) 1987-2019 by the citadel.org team
+ *
+ * This program is open source software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
  */
 
 #include "sysdep.h"
 #include <sys/wait.h>
 #include <string.h>
 #include <limits.h>
+#include <libcitadel.h>
 #include "citadel.h"
 #include "server.h"
 #include "citserver.h"
 #include "support.h"
 #include "config.h"
 #include "control.h"
-#include "room_ops.h"
 #include "user_ops.h"
-#include "policy.h"
 #include "database.h"
 #include "msgbase.h"
-#include "tools.h"
 
 
 #include "ctdl_module.h"
 
+/* Don't show the names of private rooms unless the viewing
+ * user also knows the rooms.
+ */
+void GenerateRoomDisplay(char *real_room,
+                       CitContext *viewed,
+                       CitContext *viewer) {
+
+       int ra;
+
+       strcpy(real_room, viewed->room.QRname);
+       if (viewed->room.QRflags & QR_MAILBOX) {
+               strcpy(real_room, &real_room[11]);
+       }
+       if (viewed->room.QRflags & QR_PRIVATE) {
+               CtdlRoomAccess(&viewed->room, &viewer->user, &ra, NULL);
+               if ( (ra & UA_KNOWN) == 0) {
+                       strcpy(real_room, " ");
+               }
+       }
+
+       if (viewed->cs_flags & CS_CHAT) {
+               while (strlen(real_room) < 14) {
+                       strcat(real_room, " ");
+               }
+               strcpy(&real_room[14], "<chat>");
+       }
+
+}
+
+
 
 /*
  * display who's online
  */
 void cmd_rwho(char *argbuf) {
-       struct CitContext *cptr;
+       struct CitContext *nptr;
+       int nContexts, i;
        int spoofed = 0;
-       int user_spoofed = 0;
-       int room_spoofed = 0;
-       int host_spoofed = 0;
        int aide;
-       char un[40];
-       char real_room[ROOMNAMELEN], room[ROOMNAMELEN];
-       char host[64], flags[5];
+       char room[ROOMNAMELEN];
+       char flags[5];
+       
+       /* So that we don't keep the context list locked for a long time
+        * we create a copy of it first
+        */
+       nptr = CtdlGetContextArray(&nContexts) ;
+       if (!nptr)
+       {
+               /* Couldn't malloc so we have to bail but stick to the protocol */
+               cprintf("%d%c \n", LISTING_FOLLOWS, CtdlCheckExpress() );
+               cprintf("000\n");
+               return;
+       }
        
-       aide = CC->user.axlevel >= 6;
+       aide = ( (CC->user.axlevel >= AxAideU) || (CC->internal_pgm) ) ;
        cprintf("%d%c \n", LISTING_FOLLOWS, CtdlCheckExpress() );
        
-       for (cptr = ContextList; cptr != NULL; cptr = cptr->next) 
-       {
+       for (i=0; i<nContexts; i++)  {
                flags[0] = '\0';
                spoofed = 0;
-               user_spoofed = 0;
-               room_spoofed = 0;
-               host_spoofed = 0;
                
-               if (cptr->cs_flags & CS_POSTING)
-                  strcat(flags, "*");
-               else
-                  strcat(flags, ".");
-                  
-               if (cptr->fake_username[0])
-               {
-                  strcpy(un, cptr->fake_username);
-                  spoofed = 1;
-                  user_spoofed = 1;
-               }
-               else
-                  strcpy(un, cptr->curr_user);
-                  
-               if (cptr->fake_hostname[0])
-               {
-                  strcpy(host, cptr->fake_hostname);
-                  spoofed = 1;
-                  host_spoofed = 1;
-               }
-               else
-                  strcpy(host, cptr->cs_host);
+               if (!aide && nptr[i].state == CON_SYS)
+                       continue;
 
-               GenerateRoomDisplay(real_room, cptr, CC);
+               if (!aide && nptr[i].kill_me != 0)
+                       continue;
 
-               if (cptr->fake_roomname[0]) {
-                       strcpy(room, cptr->fake_roomname);
-                       spoofed = 1;
-                       room_spoofed = 1;
+               if (nptr[i].cs_flags & CS_POSTING) {
+                       strcat(flags, "*");
                }
                else {
-                       strcpy(room, real_room);
+                       strcat(flags, ".");
                }
-               
+                  
+               GenerateRoomDisplay(room, &nptr[i], CC);
+
                 if ((aide) && (spoofed)) {
                        strcat(flags, "+");
                }
                
-               if ((cptr->cs_flags & CS_STEALTH) && (aide)) {
+               if ((nptr[i].cs_flags & CS_STEALTH) && (aide)) {
                        strcat(flags, "-");
                }
                
-               if (((cptr->cs_flags&CS_STEALTH)==0) || (aide))
-               {
+               if (((nptr[i].cs_flags&CS_STEALTH)==0) || (aide)) {
+
                        cprintf("%d|%s|%s|%s|%s|%ld|%s|%s|",
-                               cptr->cs_pid, un, room,
-                               host, cptr->cs_clientname,
-                               (long)(cptr->lastidle),
-                               cptr->lastcmdname, flags
+                               nptr[i].cs_pid, nptr[i].curr_user, room,
+                               nptr[i].cs_host, nptr[i].cs_clientname,
+                               (long)(nptr[i].lastidle),
+                               nptr[i].lastcmdname, flags
                        );
 
-                       if ((user_spoofed) && (aide)) {
-                               cprintf("%s|", cptr->curr_user);
-                       }
-                       else {
-                               cprintf("|");
-                       }
-       
-                       if ((room_spoofed) && (aide)) {
-                               cprintf("%s|", real_room);
-                       }
-                       else {
-                               cprintf("|");
-                       }
-       
-                       if ((host_spoofed) && (aide)) {
-                               cprintf("%s|", cptr->cs_host);
-                       }
-                       else {
-                               cprintf("|");
-                       }
+                       cprintf("|");   // no spoofed user names anymore
+                       cprintf("|");   // no spoofed room names anymore
+                       cprintf("|");   // no spoofed host names anymore
        
-                       cprintf("%d\n", cptr->logged_in);
+                       cprintf("%d\n", nptr[i].logged_in);
                }
        }
+       
+       /* release our copy of the context list */
+       free(nptr);
 
        /* Now it's magic time.  Before we finish, call any EVT_RWHO hooks
         * so that external paging modules such as serv_icq can add more
@@ -154,77 +162,9 @@ void cmd_rwho(char *argbuf) {
         */
        PerformSessionHooks(EVT_RWHO);
        cprintf("000\n");
-       }
-
-
-/*
- * Masquerade roomname
- */
-void cmd_rchg(char *argbuf)
-{
-       char newroomname[ROOMNAMELEN];
-
-       extract_token(newroomname, argbuf, 0, '|', sizeof newroomname);
-       newroomname[ROOMNAMELEN-1] = 0;
-       if (!IsEmptyStr(newroomname)) {
-               safestrncpy(CC->fake_roomname, newroomname,
-                       sizeof(CC->fake_roomname) );
-       }
-       else {
-               safestrncpy(CC->fake_roomname, "", sizeof CC->fake_roomname);
-       }
-       cprintf("%d OK\n", CIT_OK);
-}
-
-/*
- * Masquerade hostname 
- */
-void cmd_hchg(char *argbuf)
-{
-       char newhostname[64];
-
-       extract_token(newhostname, argbuf, 0, '|', sizeof newhostname);
-       if (!IsEmptyStr(newhostname)) {
-               safestrncpy(CC->fake_hostname, newhostname,
-                       sizeof(CC->fake_hostname) );
-       }
-       else {
-               safestrncpy(CC->fake_hostname, "", sizeof CC->fake_hostname);
-       }
-       cprintf("%d OK\n", CIT_OK);
-}
-
-
-/*
- * Masquerade username (aides only)
- */
-void cmd_uchg(char *argbuf)
-{
-
-       char newusername[USERNAME_SIZE];
-
-       extract_token(newusername, argbuf, 0, '|', sizeof newusername);
-
-       if (CtdlAccessCheck(ac_aide)) return;
-
-       if (!IsEmptyStr(newusername)) {
-               CC->cs_flags &= ~CS_STEALTH;
-               memset(CC->fake_username, 0, 32);
-               if (strncasecmp(newusername, CC->curr_user,
-                               strlen(CC->curr_user)))
-                       safestrncpy(CC->fake_username, newusername,
-                               sizeof(CC->fake_username));
-       }
-       else {
-               CC->fake_username[0] = '\0';
-               CC->cs_flags |= CS_STEALTH;
-       }
-       cprintf("%d\n",CIT_OK);
 }
 
 
-
-
 /*
  * enter or exit "stealth mode"
  */
@@ -238,9 +178,11 @@ void cmd_stel(char *cmdbuf)
 
        if (requested_mode == 1) {
                CC->cs_flags = CC->cs_flags | CS_STEALTH;
+               PerformSessionHooks(EVT_STEALTH);
        }
        if (requested_mode == 0) {
                CC->cs_flags = CC->cs_flags & ~CS_STEALTH;
+               PerformSessionHooks(EVT_UNSTEALTH);
        }
 
        cprintf("%d %d\n", CIT_OK,
@@ -248,19 +190,16 @@ void cmd_stel(char *cmdbuf)
 }
 
 
-
-
-
-
-
 CTDL_MODULE_INIT(rwho)
 {
-        CtdlRegisterProtoHook(cmd_rwho, "RWHO", "Display who is online");
-        CtdlRegisterProtoHook(cmd_hchg, "HCHG", "Masquerade hostname");
-        CtdlRegisterProtoHook(cmd_rchg, "RCHG", "Masquerade roomname");
-        CtdlRegisterProtoHook(cmd_uchg, "UCHG", "Masquerade username");
-        CtdlRegisterProtoHook(cmd_stel, "STEL", "Enter/exit stealth mode");
+       if(!threading)
+       {
+               CtdlRegisterProtoHook(cmd_rwho, "RWHO", "Display who is online");
+               CtdlRegisterProtoHook(cmd_stel, "STEL", "Enter/exit stealth mode");
+               //CtdlRegisterSessionHook(dead_io_check, EVT_TIMER, PRIO_QUEUE + 50);
 
-       /* return our Subversion id for the Log */
-        return "$Id$";
+       }
+       
+       /* return our module name for the log */
+        return "rwho";
 }