]> code.citadel.org Git - citadel.git/blobdiff - citadel/serv_chat.c
- port to Cygwin (DLL support, etc.)
[citadel.git] / citadel / serv_chat.c
index d1b4db02a79545a1881b29ea748c40a4fbff45d7..afe54a979099c22e2206c67a8146dd72a5b7033e 100644 (file)
@@ -1,10 +1,9 @@
 /*
- * serv_chat.c
+ * $Id$
  * 
  * This module handles all "real time" communication between users.  The
  * modes of communication currently supported are Chat and Paging.
  *
- * $Id$
  */
 #include "sysdep.h"
 #include <stdlib.h>
 #include <pwd.h>
 #include <errno.h>
 #include <sys/types.h>
-#include <sys/time.h>
+
+#if TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# if HAVE_SYS_TIME_H
+#  include <sys/time.h>
+# else
+#  include <time.h>
+# endif
+#endif
+
 #include <sys/wait.h>
 #include <string.h>
 #include <limits.h>
 #include "citadel.h"
 #include "server.h"
+#include "dynloader.h"
 #include <syslog.h>
 #include "serv_chat.h"
 #include "sysdep_decls.h"
 #include "citserver.h"
 #include "support.h"
 #include "config.h"
-#include "dynloader.h"
 #include "tools.h"
 #include "msgbase.h"
 #include "user_ops.h"
 struct ChatLine *ChatQueue = NULL;
 int ChatLastMsg = 0;
 
-extern struct CitContext *ContextList;
 
 
 
 void allwrite(char *cmdbuf, int flag, char *username)
 {
        FILE *fp;
-       char bcast[256];
+       char bcast[SIZ];
        char *un;
        struct ChatLine *clptr, *clnew;
        time_t now;
@@ -99,16 +108,11 @@ void allwrite(char *cmdbuf, int flag, char *username)
        }
 
        /* Then, before releasing the lock, free the expired messages */
-       while (1) {
-               if (ChatQueue == NULL)
-                       goto DONE_FREEING;
-               if ((now - ChatQueue->chat_time) < 120L)
-                       goto DONE_FREEING;
+       while ((ChatQueue != NULL) && (now - ChatQueue->chat_time >= 120L)) {
                clptr = ChatQueue;
                ChatQueue = ChatQueue->next;
                phree(clptr);
        }
-DONE_FREEING:
        end_critical_section(S_CHATQUEUE);
 }
 
@@ -186,6 +190,12 @@ void do_chat_listing(int allflag)
                cprintf(":|\n:| Users not in chat:\n");
                for (ccptr = ContextList; ccptr != NULL; ccptr = ccptr->next) {
 
+                       GenerateRoomDisplay(roomname, ccptr, CC);
+                       if ((CC->usersupp.axlevel < 6)
+                       && (strlen(ccptr->fake_roomname)>0)) {
+                               strcpy(roomname, ccptr->fake_roomname);
+                       }
+
                        if (((ccptr->cs_flags & CS_CHAT) == 0)
                            && ((ccptr->cs_flags & CS_STEALTH) == 0)) {
                                cprintf(":| %-25s <%s>:\n",
@@ -214,7 +224,7 @@ void do_chat_listing(int allflag)
 
 void cmd_chat(char *argbuf)
 {
-       char cmdbuf[256];
+       char cmdbuf[SIZ];
        char *un;
        char *strptr1;
        int MyLastMsg, ThisLastMsg;
@@ -446,6 +456,42 @@ void cmd_gexp(char *argbuf) {
        phree(ptr);
 }
 
+/*
+ * Asynchronously deliver express messages'
+ */
+void cmd_gexp_async(void) {
+
+       /* Only do this if the session can handle asynchronous protocol */
+       if (CC->is_async == 0) return;
+
+       /* And don't do it if there's nothing to send. */
+       if (CC->FirstExpressMessage == NULL) return;
+
+       cprintf("%d express msg\n", ASYNC_MSG + ASYNC_GEXP);
+       cmd_gexp("");
+}
+
+/*
+ * Back end support function for send_express_message() and company
+ */
+void add_xmsg_to_context(struct CitContext *ccptr, 
+                       struct ExpressMessage *newmsg) 
+{
+       struct ExpressMessage *findend;
+
+       if (ccptr->FirstExpressMessage == NULL) {
+               ccptr->FirstExpressMessage = newmsg;
+       }
+       else {
+               findend = ccptr->FirstExpressMessage;
+               while (findend->next != NULL) {
+                       findend = findend->next;
+               }
+               findend->next = newmsg;
+       }
+}
+
+
 
 
 /* 
@@ -458,7 +504,7 @@ int send_express_message(char *lun, char *x_user, char *x_msg)
        int message_sent = 0;           /* number of successful sends */
 
        struct CitContext *ccptr;
-       struct ExpressMessage *newmsg, *findend;
+       struct ExpressMessage *newmsg;
        char *un;
        size_t msglen = 0;
        int do_send = 0;                /* set to 1 to actually page, not
@@ -467,7 +513,6 @@ int send_express_message(char *lun, char *x_user, char *x_msg)
        struct savelist *sl = NULL;     /* list of rooms to save this page */
        struct savelist *sptr;
        struct CtdlMessage *logmsg;
-       char roomname[ROOMNAMELEN];
        long msgnum;
 
        if (strlen(x_msg) > 0) {
@@ -493,21 +538,14 @@ int send_express_message(char *lun, char *x_user, char *x_msg)
                                        mallok(sizeof (struct ExpressMessage));
                                memset(newmsg, 0,
                                        sizeof (struct ExpressMessage));
+                               time(&(newmsg->timestamp));
                                safestrncpy(newmsg->sender, lun,
                                            sizeof newmsg->sender);
                                if (!strcasecmp(x_user, "broadcast"))
                                        newmsg->flags |= EM_BROADCAST;
-                               newmsg->text = mallok(msglen);
-                               safestrncpy(newmsg->text, x_msg, msglen);
-
-                               if (ccptr->FirstExpressMessage == NULL)
-                                       ccptr->FirstExpressMessage = newmsg;
-                               else {
-                                       findend = ccptr->FirstExpressMessage;
-                                       while (findend->next != NULL)
-                                               findend = findend->next;
-                                       findend->next = newmsg;
-                               }
+                               newmsg->text = strdoop(x_msg);
+
+                               add_xmsg_to_context(ccptr, newmsg);
 
                                /* and log it ... */
                                if (ccptr != CC) {
@@ -538,15 +576,26 @@ int send_express_message(char *lun, char *x_user, char *x_msg)
                logmsg->cm_fields['R'] = strdoop(x_user);
                logmsg->cm_fields['M'] = strdoop(x_msg);
 
-               MailboxName(roomname, &CC->usersupp, PAGELOGROOM);
-               create_room(roomname, 4, "", 0);
-               msgnum = CtdlSaveMsg(logmsg, "", roomname, MES_LOCAL);
+
+               /* Save a copy of the message in the sender's log room,
+                * creating the room if necessary.
+                */
+               create_room(PAGELOGROOM, 4, "", 0, 1);
+               msgnum = CtdlSaveMsg(logmsg, "", PAGELOGROOM, MES_LOCAL);
+
+               /* Now save a copy in the global log room, if configured */
                if (strlen(config.c_logpages) > 0) {
-                       create_room(config.c_logpages, 3, "", 0);
+                       create_room(config.c_logpages, 3, "", 0, 1);
                        CtdlSaveMsgPointerInRoom(config.c_logpages, msgnum, 0);
                }
+
+               /* Save a copy in each recipient's log room, creating those
+                * rooms if necessary.  Note that we create as a type 5 room
+                * rather than 4, which indicates that it's a personal room
+                * but we've already supplied the namespace prefix.
+                */
                while (sl != NULL) {
-                       create_room(sl->roomname, 4, "", 0);
+                       create_room(sl->roomname, 5, "", 0, 1);
                        CtdlSaveMsgPointerInRoom(sl->roomname, msgnum, 0);
                        sptr = sl->next;
                        phree(sl);
@@ -565,8 +614,8 @@ int send_express_message(char *lun, char *x_user, char *x_msg)
 void cmd_sexp(char *argbuf)
 {
        int message_sent = 0;
-       char x_user[256];
-       char x_msg[256];
+       char x_user[SIZ];
+       char x_msg[SIZ];
        char *lun;              /* <bc> */
        char *x_big_msgbuf = NULL;
 
@@ -603,8 +652,8 @@ void cmd_sexp(char *argbuf)
                }
                cprintf("%d Transmit message (will deliver to %d users)\n",
                        SEND_LISTING, message_sent);
-               x_big_msgbuf = mallok(256);
-               memset(x_big_msgbuf, 0, 256);
+               x_big_msgbuf = mallok(SIZ);
+               memset(x_big_msgbuf, 0, SIZ);
                while (client_gets(x_msg), strcmp(x_msg, "000")) {
                        x_big_msgbuf = reallok(x_big_msgbuf,
                               strlen(x_big_msgbuf) + strlen(x_msg) + 4);
@@ -660,6 +709,40 @@ void cmd_dexp(char *argbuf)
        }
 
 
+/*
+ * Request client termination
+ */
+void cmd_reqt(char *argbuf) {
+       struct CitContext *ccptr;
+       int sessions = 0;
+       int which_session;
+       struct ExpressMessage *newmsg;
+
+       if (CtdlAccessCheck(ac_aide)) return;
+       which_session = extract_int(argbuf, 0);
+
+       begin_critical_section(S_SESSION_TABLE);
+       for (ccptr = ContextList; ccptr != NULL; ccptr = ccptr->next) {
+               if ((ccptr->cs_pid == which_session) || (which_session == 0)) {
+
+                       newmsg = (struct ExpressMessage *)
+                               mallok(sizeof (struct ExpressMessage));
+                       memset(newmsg, 0,
+                               sizeof (struct ExpressMessage));
+                       time(&(newmsg->timestamp));
+                       safestrncpy(newmsg->sender, CC->usersupp.fullname,
+                                   sizeof newmsg->sender);
+                       newmsg->flags |= EM_GO_AWAY;
+                       newmsg->text = strdoop("Automatic logoff requested.");
+
+                       add_xmsg_to_context(ccptr, newmsg);
+                       ++sessions;
+
+               }
+       }
+       end_critical_section(S_SESSION_TABLE);
+       cprintf("%d Sent termination request to %d sessions.\n", OK, sessions);
+}
 
 
 
@@ -670,6 +753,8 @@ char *Dynamic_Module_Init(void)
        CtdlRegisterProtoHook(cmd_gexp, "GEXP", "Get express messages");
        CtdlRegisterProtoHook(cmd_sexp, "SEXP", "Send an express message");
        CtdlRegisterProtoHook(cmd_dexp, "DEXP", "Disable express messages");
+       CtdlRegisterProtoHook(cmd_reqt, "REQT", "Request client termination");
+       CtdlRegisterSessionHook(cmd_gexp_async, EVT_CMD);
        CtdlRegisterSessionHook(delete_express_messages, EVT_STOP);
        CtdlRegisterXmsgHook(send_express_message, XMSG_PRI_LOCAL);
        return "$Id$";