+/*
+ * $Id$
+ *
+ * This module handles all "real time" communication between users. The
+ * modes of communication currently supported are Chat and Paging.
+ *
+ */
+#include "sysdep.h"
#include <stdlib.h>
#include <unistd.h>
#include <stdio.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 <pthread.h>
#include "citadel.h"
#include "server.h"
-#include <syslog.h>
-#ifdef HAVE_SYS_SELECT_H
-#include <sys/select.h>
-#endif
#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"
+#include "room_ops.h"
+
+#ifndef HAVE_SNPRINTF
+#include "snprintf.h"
+#endif
+
+
+#include "ctdl_module.h"
+
+
struct ChatLine *ChatQueue = NULL;
int ChatLastMsg = 0;
-extern struct CitContext *ContextList;
-
-#define MODULE_NAME "Chat module"
-#define MODULE_AUTHOR "Art Cancro"
-#define MODULE_EMAIL "ajc@uncnsrd.mt-kisco.ny.us"
-#define MAJOR_VERSION 0
-#define MINOR_VERSION 2
+/*
+ * This message can be set to anything you want, but it is
+ * checked for consistency so don't move it away from here.
+ */
+#define KICKEDMSG "You have been kicked out of this room."
-static struct DLModule_Info info =
-{
- MODULE_NAME,
- MODULE_AUTHOR,
- MODULE_EMAIL,
- MAJOR_VERSION,
- MINOR_VERSION
-};
-
-struct DLModule_Info *Dynamic_Module_Init(void)
+void allwrite(char *cmdbuf, int flag, char *username)
{
- CtdlRegisterProtoHook(cmd_chat, "CHAT",
- "Initiates a real-time chat session");
- CtdlRegisterProtoHook(cmd_pexp, "PEXP", "Poll for express messages");
- CtdlRegisterProtoHook(cmd_sexp, "SEXP", "Send an express message");
- return &info;
-}
-
-void allwrite(char *cmdbuf, int flag, char *roomname, char *username)
-{
FILE *fp;
- char bcast[256];
+ char bcast[SIZ];
char *un;
struct ChatLine *clptr, *clnew;
time_t now;
if (CC->fake_username[0])
- un = CC->fake_username;
- else
- un = CC->usersupp.fullname;
- if (flag == 1)
- {
- sprintf(bcast,":|<%s %s>",un,cmdbuf);
- }
- else
- if (flag == 0)
- {
- sprintf(bcast,"%s|%s",un,cmdbuf);
- }
+ un = CC->fake_username;
else
- if (flag == 2)
- {
- sprintf(bcast,":|<%s whispers %s>", un, cmdbuf);
+ un = CC->user.fullname;
+ if (flag == 1) {
+ snprintf(bcast, sizeof bcast, ":|<%s %s>", un, cmdbuf);
+ } else if (flag == 0) {
+ snprintf(bcast, sizeof bcast, "%s|%s", un, cmdbuf);
+ } else if (flag == 2) {
+ snprintf(bcast, sizeof bcast, ":|<%s whispers %s>", un, cmdbuf);
+ } else if (flag == 3) {
+ snprintf(bcast, sizeof bcast, ":|%s", KICKEDMSG);
}
- if ((strcasecmp(cmdbuf,"NOOP")) && (flag !=2)) {
- fp = fopen(CHATLOG,"a");
- fprintf(fp,"%s\n",bcast);
+ if ((strcasecmp(cmdbuf, "NOOP")) && (flag != 2)) {
+ fp = fopen(CHATLOG, "a");
+ if (fp != NULL)
+ fprintf(fp, "%s\n", bcast);
fclose(fp);
- }
-
+ }
clnew = (struct ChatLine *) malloc(sizeof(struct ChatLine));
memset(clnew, 0, sizeof(struct ChatLine));
if (clnew == NULL) {
fprintf(stderr, "citserver: cannot alloc chat line: %s\n",
strerror(errno));
return;
- }
-
+ }
time(&now);
clnew->next = NULL;
clnew->chat_time = now;
- strncpy(clnew->chat_room, roomname, sizeof clnew->chat_room);
+ safestrncpy(clnew->chat_room, CC->room.QRname,
+ sizeof clnew->chat_room);
clnew->chat_room[sizeof clnew->chat_room - 1] = 0;
- if (username)
- {
- strncpy(clnew->chat_username, username,
- sizeof clnew->chat_username);
- clnew->chat_username[sizeof clnew->chat_username - 1] = 0;
- }
- else
- clnew->chat_username[0] = '\0';
- strcpy(clnew->chat_text, bcast);
+ if (username) {
+ safestrncpy(clnew->chat_username, username,
+ sizeof clnew->chat_username);
+ clnew->chat_username[sizeof clnew->chat_username - 1] = 0;
+ } else
+ clnew->chat_username[0] = '\0';
+ safestrncpy(clnew->chat_text, bcast, sizeof clnew->chat_text);
/* Here's the critical section.
* First, add the new message to the queue...
clnew->chat_seq = ChatLastMsg;
if (ChatQueue == NULL) {
ChatQueue = clnew;
- }
- else {
- for (clptr=ChatQueue; clptr->next != NULL; clptr=clptr->next) ;;
+ } else {
+ for (clptr = ChatQueue; clptr->next != NULL; clptr = clptr->next);;
clptr->next = clnew;
- }
+ }
/* 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;
free(clptr);
- }
-DONE_FREEING: end_critical_section(S_CHATQUEUE);
}
+ end_critical_section(S_CHATQUEUE);
+}
t_context *find_context(char **unstr)
{
- t_context *t_cc, *found_cc = NULL;
- char *name, *tptr;
-
- if ((!*unstr) || (!unstr))
- return(NULL);
-
- begin_critical_section(S_SESSION_TABLE);
- for (t_cc = ContextList; ((t_cc) && (!found_cc)); t_cc = t_cc->next)
- {
- if (t_cc->fake_username[0])
- name = t_cc->fake_username;
- else
- name = t_cc->curr_user;
- tptr = *unstr;
- if ((!strncasecmp(name, tptr, strlen(name))) && (tptr[strlen(name)] == ' '))
- {
- found_cc = t_cc;
- *unstr = &(tptr[strlen(name)+1]);
- }
- }
- end_critical_section(S_SESSION_TABLE);
-
- return(found_cc);
+ t_context *t_cc, *found_cc = NULL;
+ char *name, *tptr;
+
+ if ((!*unstr) || (!unstr))
+ return (NULL);
+
+ begin_critical_section(S_SESSION_TABLE);
+ for (t_cc = ContextList; ((t_cc) && (!found_cc)); t_cc = t_cc->next) {
+ if (t_cc->fake_username[0])
+ name = t_cc->fake_username;
+ else
+ name = t_cc->curr_user;
+ tptr = *unstr;
+ if ((!strncasecmp(name, tptr, strlen(name))) && (tptr[strlen(name)] == ' ')) {
+ found_cc = t_cc;
+ *unstr = &(tptr[strlen(name) + 1]);
+ }
+ }
+ end_critical_section(S_SESSION_TABLE);
+
+ return (found_cc);
}
/*
- * List users in chat. Setting allflag to 1 also lists users elsewhere.
+ * List users in chat.
+ * allflag == 0 = list users in chat
+ * 1 = list users in chat, followed by users not in chat
+ * 2 = display count only
*/
void do_chat_listing(int allflag)
{
struct CitContext *ccptr;
+ int count = 0;
+ int count_elsewhere = 0;
+ char roomname[ROOMNAMELEN];
- cprintf(":|\n:| Users currently in chat:\n");
+ if ((allflag == 0) || (allflag == 1))
+ cprintf(":|\n:| Users currently in chat:\n");
begin_critical_section(S_SESSION_TABLE);
for (ccptr = ContextList; ccptr != NULL; ccptr = ccptr->next) {
- if ( (!strcasecmp(ccptr->cs_room, "<chat>"))
- && ((ccptr->cs_flags & CS_STEALTH) == 0)) {
- cprintf(":| %-25s <%s>\n", (ccptr->fake_username[0]) ? ccptr->fake_username : ccptr->curr_user, ccptr->chat_room);
+ if (ccptr->cs_flags & CS_CHAT) {
+ if (!strcasecmp(ccptr->room.QRname,
+ CC->room.QRname)) {
+ ++count;
}
+ else {
+ ++count_elsewhere;
+ }
+ }
+
+ GenerateRoomDisplay(roomname, ccptr, CC);
+ if ((CC->user.axlevel < 6)
+ && (strlen(ccptr->fake_roomname)>0)) {
+ strcpy(roomname, ccptr->fake_roomname);
}
- if (allflag == 1)
- {
+ if ((ccptr->cs_flags & CS_CHAT)
+ && ((ccptr->cs_flags & CS_STEALTH) == 0)) {
+ if ((allflag == 0) || (allflag == 1)) {
+ cprintf(":| %-25s <%s>:\n",
+ (ccptr->fake_username[0]) ? ccptr->fake_username : ccptr->curr_user,
+ roomname);
+ }
+ }
+ }
+
+ if (allflag == 1) {
cprintf(":|\n:| Users not in chat:\n");
- for (ccptr = ContextList; ccptr != NULL; ccptr = ccptr->next)
- {
- if ( (strcasecmp(ccptr->cs_room, "<chat>"))
- && ((ccptr->cs_flags & CS_STEALTH) == 0))
- {
- cprintf(":| %-25s <%s>:\n", (ccptr->fake_username[0]) ? ccptr->fake_username : ccptr->curr_user, (ccptr->fake_roomname[0]) ? ccptr->fake_roomname : ccptr->cs_room);
+ for (ccptr = ContextList; ccptr != NULL; ccptr = ccptr->next) {
+
+ GenerateRoomDisplay(roomname, ccptr, CC);
+ if ((CC->user.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",
+ (ccptr->fake_username[0]) ? ccptr->fake_username : ccptr->curr_user,
+ roomname);
}
}
}
-
end_critical_section(S_SESSION_TABLE);
- cprintf(":|\n");
+
+ if (allflag == 2) {
+ if (count > 1) {
+ cprintf(":|There are %d users here.\n", count);
+ }
+ else {
+ cprintf(":|Note: you are the only one here.\n");
+ }
+ if (count_elsewhere > 0) {
+ cprintf(":|There are %d users chatting in other rooms.\n", count_elsewhere);
+ }
}
+ cprintf(":|\n");
+}
+
void cmd_chat(char *argbuf)
{
- char cmdbuf[256];
+ char cmdbuf[SIZ];
char *un;
char *strptr1;
- char hold_cs_room[ROOMNAMELEN];
int MyLastMsg, ThisLastMsg;
struct ChatLine *clptr;
struct CitContext *t_context;
int retval;
if (!(CC->logged_in)) {
- cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
+ cprintf("%d Not logged in.\n", ERROR + NOT_LOGGED_IN);
return;
- }
-
- strcpy(CC->chat_room, "Main room");
+ }
- strcpy(hold_cs_room,CC->cs_room);
CC->cs_flags = CC->cs_flags | CS_CHAT;
- set_wtmpsupp("<chat>");
cprintf("%d Entering chat mode (type '/help' for available commands)\n",
START_CHAT_MODE);
+ unbuffer_output();
MyLastMsg = ChatLastMsg;
if ((CC->cs_flags & CS_STEALTH) == 0) {
- allwrite("<entering chat>",0, CC->chat_room, NULL);
- }
-
+ allwrite("<entering chat>", 0, NULL);
+ }
strcpy(cmdbuf, "");
- while(1) {
- int ok_cmd;
-
- ok_cmd = 0;
- cmdbuf[strlen(cmdbuf) + 1] = 0;
- retval = client_read_to(&cmdbuf[strlen(cmdbuf)], 1, 2);
+ do_chat_listing(2);
+
+ while (1) {
+ int ok_cmd;
+ int linelen;
+
+ ok_cmd = 0;
+ linelen = strlen(cmdbuf);
+ if (linelen > 100) --linelen; /* truncate too-long lines */
+ cmdbuf[linelen + 1] = 0;
+
+ retval = client_read_to(&cmdbuf[linelen], 1, 2);
+
+ if (retval < 0 || CC->kill_me) { /* socket broken? */
+ if ((CC->cs_flags & CS_STEALTH) == 0) {
+ allwrite("<disconnected>", 0, NULL);
+ }
+ return;
+ }
/* if we have a complete line, do send processing */
- if (strlen(cmdbuf) > 0) if (cmdbuf[strlen(cmdbuf)-1] == 10) {
- cmdbuf[strlen(cmdbuf) - 1] = 0;
- time(&CC->lastcmd);
- time(&CC->lastidle);
-
- if ( (!strcasecmp(cmdbuf,"exit"))
- ||(!strcasecmp(cmdbuf,"/exit"))
- ||(!strcasecmp(cmdbuf,"quit"))
- ||(!strcasecmp(cmdbuf,"logout"))
- ||(!strcasecmp(cmdbuf,"logoff"))
- ||(!strcasecmp(cmdbuf,"/q"))
- ||(!strcasecmp(cmdbuf,".q"))
- ||(!strcasecmp(cmdbuf,"/quit"))
- ) strcpy(cmdbuf,"000");
-
- if (!strcmp(cmdbuf,"000")) {
- if ((CC->cs_flags & CS_STEALTH) == 0) {
- allwrite("<exiting chat>",0, CC->chat_room, NULL);
+ if (strlen(cmdbuf) > 0)
+ if (cmdbuf[strlen(cmdbuf) - 1] == 10) {
+ cmdbuf[strlen(cmdbuf) - 1] = 0;
+ time(&CC->lastcmd);
+ time(&CC->lastidle);
+
+ if ((!strcasecmp(cmdbuf, "exit"))
+ || (!strcasecmp(cmdbuf, "/exit"))
+ || (!strcasecmp(cmdbuf, "quit"))
+ || (!strcasecmp(cmdbuf, "logout"))
+ || (!strcasecmp(cmdbuf, "logoff"))
+ || (!strcasecmp(cmdbuf, "/q"))
+ || (!strcasecmp(cmdbuf, ".q"))
+ || (!strcasecmp(cmdbuf, "/quit"))
+ )
+ strcpy(cmdbuf, "000");
+
+ if (!strcmp(cmdbuf, "000")) {
+ if ((CC->cs_flags & CS_STEALTH) == 0) {
+ allwrite("<exiting chat>", 0, NULL);
}
- sleep(1);
- cprintf("000\n");
- CC->cs_flags = CC->cs_flags - CS_CHAT;
- set_wtmpsupp(hold_cs_room);
- return;
+ sleep(1);
+ cprintf("000\n");
+ CC->cs_flags = CC->cs_flags - CS_CHAT;
+ return;
}
-
- if ((!strcasecmp(cmdbuf,"/help"))
- ||(!strcasecmp(cmdbuf,"help"))
- ||(!strcasecmp(cmdbuf,"/?"))
- ||(!strcasecmp(cmdbuf,"?"))) {
- cprintf(":|\n");
- cprintf(":|Available commands: \n");
- cprintf(":|/help (prints this message) \n");
- cprintf(":|/who (list users currently in chat) \n");
- cprintf(":|/whobbs (list users in chat -and- elsewhere) \n");
- cprintf(":|/me ('action' line, ala irc) \n");
- cprintf(":|/msg (send private message, ala irc) \n");
- cprintf(":|/join (join new room) \n");
- cprintf(":|/quit (return to the BBS) \n");
- cprintf(":|\n");
- ok_cmd = 1;
+ if ((!strcasecmp(cmdbuf, "/help"))
+ || (!strcasecmp(cmdbuf, "help"))
+ || (!strcasecmp(cmdbuf, "/?"))
+ || (!strcasecmp(cmdbuf, "?"))) {
+ cprintf(":|\n");
+ cprintf(":|Available commands: \n");
+ cprintf(":|/help (prints this message) \n");
+ cprintf(":|/who (list users currently in chat) \n");
+ cprintf(":|/whobbs (list users in chat -and- elsewhere) \n");
+ cprintf(":|/me ('action' line, ala irc) \n");
+ cprintf(":|/msg (send private message, ala irc) \n");
+ if (is_room_aide()) {
+ cprintf(":|/kick (kick another user out of this room) \n");
+ }
+ cprintf(":|/quit (exit from this chat) \n");
+ cprintf(":|\n");
+ ok_cmd = 1;
}
- if (!strcasecmp(cmdbuf,"/who")) {
- do_chat_listing(0);
- ok_cmd = 1;
+ if (!strcasecmp(cmdbuf, "/who")) {
+ do_chat_listing(0);
+ ok_cmd = 1;
}
- if (!strcasecmp(cmdbuf,"/whobbs")) {
- do_chat_listing(1);
- ok_cmd = 1;
+ if (!strcasecmp(cmdbuf, "/whobbs")) {
+ do_chat_listing(1);
+ ok_cmd = 1;
}
- if (!strncasecmp(cmdbuf,"/me ",4)) {
- allwrite(&cmdbuf[4],1, CC->chat_room, NULL);
- ok_cmd = 1;
+ if (!strncasecmp(cmdbuf, "/me ", 4)) {
+ allwrite(&cmdbuf[4], 1, NULL);
+ ok_cmd = 1;
}
-
- if (!strncasecmp(cmdbuf,"/msg ", 5))
- {
- ok_cmd =1;
- strptr1 = &cmdbuf[5];
- if ((t_context = find_context(&strptr1)))
- {
- allwrite(strptr1, 2, "", CC->curr_user);
- if (strcasecmp(CC->curr_user, t_context->curr_user))
- allwrite(strptr1, 2, "", t_context->curr_user);
- }
- else
- cprintf(":|User not found.\n", cmdbuf);
- cprintf("\n");
- }
-
- if (!strncasecmp(cmdbuf,"/join ", 6))
- {
- ok_cmd = 1;
- allwrite("<changing rooms>",0, CC->chat_room, NULL);
- if (!cmdbuf[6])
- strcpy(CC->chat_room, "Main room");
- else
- {
- strncpy(CC->chat_room, &cmdbuf[6],
- sizeof CC->chat_room);
- CC->chat_room[sizeof CC->chat_room - 1] = 0;
- }
- allwrite("<joining room>",0, CC->chat_room, NULL);
- cprintf("\n");
- }
- if ((cmdbuf[0]!='/')&&(strlen(cmdbuf)>0)) {
- ok_cmd = 1;
- allwrite(cmdbuf,0, CC->chat_room, NULL);
+ if (!strncasecmp(cmdbuf, "/msg ", 5)) {
+ ok_cmd = 1;
+ strptr1 = &cmdbuf[5];
+ if ((t_context = find_context(&strptr1))) {
+ allwrite(strptr1, 2, CC->curr_user);
+ if (strcasecmp(CC->curr_user, t_context->curr_user))
+ allwrite(strptr1, 2, t_context->curr_user);
+ } else
+ cprintf(":|User not found.\n");
+ cprintf("\n");
+ }
+ /* The /kick function is implemented by sending a specific
+ * message to the kicked-out user's context. When that message
+ * is processed by the read loop, that context will exit.
+ */
+ if ( (!strncasecmp(cmdbuf, "/kick ", 6)) && (is_room_aide()) ) {
+ ok_cmd = 1;
+ strptr1 = &cmdbuf[6];
+ strcat(strptr1, " ");
+ if ((t_context = find_context(&strptr1))) {
+ if (strcasecmp(CC->curr_user, t_context->curr_user))
+ allwrite(strptr1, 3, t_context->curr_user);
+ } else
+ cprintf(":|User not found.\n");
+ cprintf("\n");
}
+ if ((cmdbuf[0] != '/') && (strlen(cmdbuf) > 0)) {
+ ok_cmd = 1;
+ allwrite(cmdbuf, 0, NULL);
+ }
+ if ((!ok_cmd) && (cmdbuf[0]) && (cmdbuf[0] != '\n'))
+ cprintf(":|Command %s is not understood.\n", cmdbuf);
- if ((!ok_cmd) && (cmdbuf[0]) && (cmdbuf[0] != '\n'))
- cprintf(":|Command %s is not understood.\n", cmdbuf);
-
- strcpy(cmdbuf, "");
+ strcpy(cmdbuf, "");
}
-
/* now check the queue for new incoming stuff */
-
+
if (CC->fake_username[0])
- un = CC->fake_username;
+ un = CC->fake_username;
else
- un = CC->curr_user;
+ un = CC->curr_user;
if (ChatLastMsg > MyLastMsg) {
ThisLastMsg = ChatLastMsg;
- for (clptr=ChatQueue; clptr!=NULL; clptr=clptr->next)
- {
- if ((clptr->chat_seq > MyLastMsg) && ((!clptr->chat_username[0]) || (!strncasecmp(un, clptr->chat_username, 32))))
- {
- if ((!clptr->chat_room[0]) || (!strncasecmp(CC->chat_room, clptr->chat_room, ROOMNAMELEN)))
- {
- cprintf("%s\n", clptr->chat_text);
- }
- }
+ for (clptr = ChatQueue; clptr != NULL; clptr = clptr->next) {
+ if ((clptr->chat_seq > MyLastMsg) && ((!clptr->chat_username[0]) || (!strncasecmp(un, clptr->chat_username, 32)))) {
+ if ((!clptr->chat_room[0]) || (!strncasecmp(CC->room.QRname, clptr->chat_room, ROOMNAMELEN))) {
+ /* Output new chat data */
+ cprintf("%s\n", clptr->chat_text);
+
+ /* See if we've been force-quitted (kicked etc.) */
+ if (!strcmp(&clptr->chat_text[2], KICKEDMSG)) {
+ allwrite("<kicked out of this room>", 0, NULL);
+ cprintf("000\n");
+ CC->cs_flags = CC->cs_flags - CS_CHAT;
+
+ /* Kick user out of room */
+ CtdlInvtKick(CC->user.fullname, 0);
+
+ /* And return to the Lobby */
+ usergoto(config.c_baseroom, 0, 0, NULL, NULL);
+ return;
+ }
+ }
+ }
}
MyLastMsg = ThisLastMsg;
- }
+ }
+ }
+}
+
+
+/*
+ * Delete any remaining instant messages
+ */
+void delete_instant_messages(void) {
+ struct ExpressMessage *ptr;
+
+ begin_critical_section(S_SESSION_TABLE);
+ while (CC->FirstExpressMessage != NULL) {
+ ptr = CC->FirstExpressMessage->next;
+ if (CC->FirstExpressMessage->text != NULL)
+ free(CC->FirstExpressMessage->text);
+ free(CC->FirstExpressMessage);
+ CC->FirstExpressMessage = ptr;
}
+ end_critical_section(S_SESSION_TABLE);
}
+
+
+/*
+ * Poll for instant messages (OLD METHOD -- ***DEPRECATED ***)
+ */
+void cmd_pexp(char *argbuf)
+{
+ struct ExpressMessage *ptr, *holdptr;
+
+ if (CC->FirstExpressMessage == NULL) {
+ cprintf("%d No instant messages waiting.\n", ERROR + MESSAGE_NOT_FOUND);
+ return;
+ }
+ begin_critical_section(S_SESSION_TABLE);
+ ptr = CC->FirstExpressMessage;
+ CC->FirstExpressMessage = NULL;
+ end_critical_section(S_SESSION_TABLE);
+
+ cprintf("%d Express msgs:\n", LISTING_FOLLOWS);
+ while (ptr != NULL) {
+ if (ptr->flags && EM_BROADCAST)
+ cprintf("Broadcast message ");
+ else if (ptr->flags && EM_CHAT)
+ cprintf("Chat request ");
+ else if (ptr->flags && EM_GO_AWAY)
+ cprintf("Please logoff now, as requested ");
+ else
+ cprintf("Message ");
+ cprintf("from %s:\n", ptr->sender);
+ if (ptr->text != NULL)
+ memfmout(ptr->text, 0, "\n");
+
+ holdptr = ptr->next;
+ if (ptr->text != NULL) free(ptr->text);
+ free(ptr);
+ ptr = holdptr;
+ }
+ cprintf("000\n");
+}
+
+
/*
- * poll for express messages
+ * Get instant messages (new method)
*/
-void cmd_pexp(char *argbuf) /* arg unused */ {
- struct ExpressMessage *emptr;
+void cmd_gexp(char *argbuf) {
+ struct ExpressMessage *ptr;
if (CC->FirstExpressMessage == NULL) {
- cprintf("%d No express messages waiting.\n",ERROR);
+ cprintf("%d No instant messages waiting.\n", ERROR + MESSAGE_NOT_FOUND);
return;
+ }
+
+ begin_critical_section(S_SESSION_TABLE);
+ ptr = CC->FirstExpressMessage;
+ CC->FirstExpressMessage = CC->FirstExpressMessage->next;
+ end_critical_section(S_SESSION_TABLE);
+
+ cprintf("%d %d|%ld|%d|%s|%s\n",
+ LISTING_FOLLOWS,
+ ((ptr->next != NULL) ? 1 : 0), /* more msgs? */
+ (long)ptr->timestamp, /* time sent */
+ ptr->flags, /* flags */
+ ptr->sender, /* sender of msg */
+ config.c_nodename /* static for now */
+ );
+
+ if (ptr->text != NULL) {
+ memfmout(ptr->text, 0, "\n");
+ if (ptr->text[strlen(ptr->text)-1] != '\n') cprintf("\n");
+ free(ptr->text);
+ }
+
+ cprintf("000\n");
+ free(ptr);
+}
+
+/*
+ * Asynchronously deliver instant 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 instant msg\n", ASYNC_MSG + ASYNC_GEXP);
+}
+
+/*
+ * Back end support function for send_instant_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;
+ }
- cprintf("%d Express msgs:\n",LISTING_FOLLOWS);
+ /* If the target context is a session which can handle asynchronous
+ * messages, go ahead and set the flag for that.
+ */
+ if (ccptr->is_async) {
+ ccptr->async_waiting = 1;
+ if (ccptr->state == CON_IDLE) {
+ ccptr->state = CON_READY;
+ }
+ }
+}
- while (CC->FirstExpressMessage != NULL) {
- cprintf("%s", CC->FirstExpressMessage->em_text);
- begin_critical_section(S_SESSION_TABLE);
- emptr = CC->FirstExpressMessage;
- CC->FirstExpressMessage = CC->FirstExpressMessage->next;
- free(emptr);
- end_critical_section(S_SESSION_TABLE);
+
+
+
+/*
+ * This is the back end to the instant message sending function.
+ * Returns the number of users to which the message was sent.
+ * Sending a zero-length message tests for recipients without sending messages.
+ */
+int send_instant_message(char *lun, char *x_user, char *x_msg)
+{
+ int message_sent = 0; /* number of successful sends */
+ struct CitContext *ccptr;
+ struct ExpressMessage *newmsg;
+ char *un;
+ size_t msglen = 0;
+ int do_send = 0; /* set to 1 to actually page, not
+ * just check to see if we can.
+ */
+ struct savelist *sl = NULL; /* list of rooms to save this page */
+ struct savelist *sptr;
+ struct CtdlMessage *logmsg = NULL;
+ long msgnum;
+
+ if (strlen(x_msg) > 0) {
+ msglen = strlen(x_msg) + 4;
+ do_send = 1;
+ }
+
+ /* find the target user's context and append the message */
+ begin_critical_section(S_SESSION_TABLE);
+ for (ccptr = ContextList; ccptr != NULL; ccptr = ccptr->next) {
+
+ if (ccptr->fake_username[0]) {
+ un = ccptr->fake_username;
}
- cprintf("000\n");
+ else {
+ un = ccptr->user.fullname;
+ }
+
+ if ( ((!strcasecmp(un, x_user))
+ || (!strcasecmp(x_user, "broadcast")))
+ && ((ccptr->disable_exp == 0)
+ || (CC->user.axlevel >= 6)) ) {
+ if (do_send) {
+ newmsg = (struct ExpressMessage *)
+ malloc(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 = strdup(x_msg);
+
+ add_xmsg_to_context(ccptr, newmsg);
+
+ /* and log it ... */
+ if (ccptr != CC) {
+ sptr = (struct savelist *)
+ malloc(sizeof(struct savelist));
+ sptr->next = sl;
+ MailboxName(sptr->roomname,
+ sizeof sptr->roomname,
+ &ccptr->user, PAGELOGROOM);
+ sl = sptr;
+ }
+ }
+ ++message_sent;
+ }
+ }
+ end_critical_section(S_SESSION_TABLE);
+
+ /* Log the page to disk if configured to do so */
+ if ( (do_send) && (message_sent) ) {
+
+ logmsg = malloc(sizeof(struct CtdlMessage));
+ memset(logmsg, 0, sizeof(struct CtdlMessage));
+ logmsg->cm_magic = CTDLMESSAGE_MAGIC;
+ logmsg->cm_anon_type = MES_NORMAL;
+ logmsg->cm_format_type = 0;
+ logmsg->cm_fields['A'] = strdup(lun);
+ logmsg->cm_fields['N'] = strdup(NODENAME);
+ logmsg->cm_fields['O'] = strdup(PAGELOGROOM);
+ logmsg->cm_fields['R'] = strdup(x_user);
+ logmsg->cm_fields['M'] = strdup(x_msg);
+
+
+ /* Save a copy of the message in the sender's log room,
+ * creating the room if necessary.
+ */
+ create_room(PAGELOGROOM, 4, "", 0, 1, 0, VIEW_BBS);
+ msgnum = CtdlSubmitMsg(logmsg, NULL, PAGELOGROOM);
+
+ /* Now save a copy in the global log room, if configured */
+ if (strlen(config.c_logpages) > 0) {
+ create_room(config.c_logpages, 3, "", 0, 1, 1, VIEW_BBS);
+ CtdlSaveMsgPointerInRoom(config.c_logpages, msgnum, 0, NULL);
+ }
+
+ /* 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, 5, "", 0, 1, 1, VIEW_BBS);
+ CtdlSaveMsgPointerInRoom(sl->roomname, msgnum, 0, NULL);
+ sptr = sl->next;
+ free(sl);
+ sl = sptr;
+ }
+
+ CtdlFreeMessage(logmsg);
}
+ return (message_sent);
+}
/*
- * send express messages <bc>
+ * send instant messages
*/
void cmd_sexp(char *argbuf)
{
- char x_user[256];
- char x_msg[256];
int message_sent = 0;
- struct CitContext *ccptr;
- struct ExpressMessage *emptr, *emnew;
- char *lun; /* <bc> */
+ char x_user[USERNAME_SIZE];
+ char x_msg[1024];
+ char *lun;
+ char *x_big_msgbuf = NULL;
- if (!(CC->logged_in)) {
- cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
+ if ((!(CC->logged_in)) && (!(CC->internal_pgm))) {
+ cprintf("%d Not logged in.\n", ERROR + NOT_LOGGED_IN);
return;
- }
+ }
+ if (CC->fake_username[0])
+ lun = CC->fake_username;
+ else
+ lun = CC->user.fullname;
- if (num_parms(argbuf)!=2) {
- cprintf("%d usage error\n",ERROR);
- return;
- }
+ extract_token(x_user, argbuf, 0, '|', sizeof x_user);
+ extract_token(x_msg, argbuf, 1, '|', sizeof x_msg);
- if (CC->fake_username[0])
- lun = CC->fake_username;
- else
- lun = CC->usersupp.fullname;
-
- extract(x_user,argbuf,0);
-
- if (!strcmp(x_user, "."))
- {
- strcpy(x_user, CC->last_pager);
- }
- extract(x_msg,argbuf,1);
-
- if (!x_user[0])
- {
- cprintf("%d You were not previously paged.\n", ERROR);
- return;
- }
-
- if ( (!strcasecmp(x_user, "broadcast")) && (CC->usersupp.axlevel < 6) ) {
+ if (!x_user[0]) {
+ cprintf("%d You were not previously paged.\n", ERROR + NO_SUCH_USER);
+ return;
+ }
+ if ((!strcasecmp(x_user, "broadcast")) && (CC->user.axlevel < 6)) {
cprintf("%d Higher access required to send a broadcast.\n",
- ERROR+HIGHER_ACCESS_REQUIRED);
+ ERROR + HIGHER_ACCESS_REQUIRED);
return;
+ }
+ /* This loop handles text-transfer pages */
+ if (!strcmp(x_msg, "-")) {
+ message_sent = PerformXmsgHooks(lun, x_user, "");
+ if (message_sent == 0) {
+ if (getuser(NULL, x_user))
+ cprintf("%d '%s' does not exist.\n",
+ ERROR + NO_SUCH_USER, x_user);
+ else
+ cprintf("%d '%s' is not logged in "
+ "or is not accepting pages.\n",
+ ERROR + RESOURCE_NOT_OPEN, x_user);
+ return;
+ }
+ unbuffer_output();
+ cprintf("%d Transmit message (will deliver to %d users)\n",
+ SEND_LISTING, message_sent);
+ x_big_msgbuf = malloc(SIZ);
+ memset(x_big_msgbuf, 0, SIZ);
+ while (client_getln(x_msg, sizeof x_msg),
+ strcmp(x_msg, "000")) {
+ x_big_msgbuf = realloc(x_big_msgbuf,
+ strlen(x_big_msgbuf) + strlen(x_msg) + 4);
+ if (strlen(x_big_msgbuf) > 0)
+ if (x_big_msgbuf[strlen(x_big_msgbuf)] != '\n')
+ strcat(x_big_msgbuf, "\n");
+ strcat(x_big_msgbuf, x_msg);
+ }
+ PerformXmsgHooks(lun, x_user, x_big_msgbuf);
+ free(x_big_msgbuf);
+
+ /* This loop handles inline pages */
+ } else {
+ message_sent = PerformXmsgHooks(lun, x_user, x_msg);
+
+ if (message_sent > 0) {
+ if (strlen(x_msg) > 0)
+ cprintf("%d Message sent", CIT_OK);
+ else
+ cprintf("%d Ok to send message", CIT_OK);
+ if (message_sent > 1)
+ cprintf(" to %d users", message_sent);
+ cprintf(".\n");
+ } else {
+ if (getuser(NULL, x_user))
+ cprintf("%d '%s' does not exist.\n",
+ ERROR + NO_SUCH_USER, x_user);
+ else
+ cprintf("%d '%s' is not logged in "
+ "or is not accepting pages.\n",
+ ERROR + RESOURCE_NOT_OPEN, x_user);
}
- /* find the target user's context and append the message */
+
+ }
+}
+
+
+
+/*
+ * Enter or exit paging-disabled mode
+ */
+void cmd_dexp(char *argbuf)
+{
+ int new_state;
+
+ if (CtdlAccessCheck(ac_logged_in)) return;
+
+ new_state = extract_int(argbuf, 0);
+ if ((new_state == 0) || (new_state == 1)) {
+ CC->disable_exp = new_state;
+ }
+
+ cprintf("%d %d\n", CIT_OK, CC->disable_exp);
+}
+
+
+/*
+ * 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) {
- char *un;
-
- if (ccptr->fake_username[0]) /* <bc> */
- un = ccptr->fake_username;
- else
- un = ccptr->usersupp.fullname;
-
- if ( (!strcasecmp(un, x_user))
- || (!strcasecmp(x_user, "broadcast")) ) {
- strcpy(ccptr->last_pager, CC->curr_user);
- emnew = (struct ExpressMessage *)
- malloc(sizeof(struct ExpressMessage));
- emnew->next = NULL;
- sprintf(emnew->em_text, "%s from %s:\n %s\n",
- ( (!strcasecmp(x_user, "broadcast")) ? "Broadcast message" : "Message" ),
- lun, x_msg);
-
- if (ccptr->FirstExpressMessage == NULL) {
- ccptr->FirstExpressMessage = emnew;
- }
- else {
- emptr = ccptr->FirstExpressMessage;
- while (emptr->next != NULL) {
- emptr = emptr->next;
- }
- emptr->next = emnew;
- }
+ if ((ccptr->cs_pid == which_session) || (which_session == 0)) {
- ++message_sent;
- }
- }
- end_critical_section(S_SESSION_TABLE);
+ newmsg = (struct ExpressMessage *)
+ malloc(sizeof (struct ExpressMessage));
+ memset(newmsg, 0,
+ sizeof (struct ExpressMessage));
+ time(&(newmsg->timestamp));
+ safestrncpy(newmsg->sender, CC->user.fullname,
+ sizeof newmsg->sender);
+ newmsg->flags |= EM_GO_AWAY;
+ newmsg->text = strdup("Automatic logoff requested.");
+
+ add_xmsg_to_context(ccptr, newmsg);
+ ++sessions;
- if (message_sent > 0) {
- cprintf("%d Message sent.\n",OK);
- }
- else {
- cprintf("%d No user '%s' logged in.\n",ERROR,x_user);
}
}
+ end_critical_section(S_SESSION_TABLE);
+ cprintf("%d Sent termination request to %d sessions.\n", CIT_OK, sessions);
+}
+
+
+
+CTDL_MODULE_INIT(chat)
+{
+ CtdlRegisterProtoHook(cmd_chat, "CHAT", "Begin real-time chat");
+ CtdlRegisterProtoHook(cmd_pexp, "PEXP", "Poll for instant messages");
+ CtdlRegisterProtoHook(cmd_gexp, "GEXP", "Get instant messages");
+ CtdlRegisterProtoHook(cmd_sexp, "SEXP", "Send an instant message");
+ CtdlRegisterProtoHook(cmd_dexp, "DEXP", "Disable instant messages");
+ CtdlRegisterProtoHook(cmd_reqt, "REQT", "Request client termination");
+ CtdlRegisterSessionHook(cmd_gexp_async, EVT_ASYNC);
+ CtdlRegisterSessionHook(delete_instant_messages, EVT_STOP);
+ CtdlRegisterXmsgHook(send_instant_message, XMSG_PRI_LOCAL);
+
+ /* return our Subversion id for the Log */
+ return "$Id$";
+}
+
projects / citadel.git / blobdiff