From 61906329ccbe96c25c75533f819dea269492f5a7 Mon Sep 17 00:00:00 2001
From: Luke Bratch <luke@bratch.co.uk>
Date: Sun, 16 Jun 2019 23:16:18 +0100
Subject: Implement two new auto replay modes: - replaymode = "noclients": All
 messages since the bouncer last had no clients connected - replaymode =
 "lastchange": All messages since the last client connect or disconnect

---
 functions.c | 33 ++++++++++++++++++++++++++++++---
 1 file changed, 30 insertions(+), 3 deletions(-)

(limited to 'functions.c')

diff --git a/functions.c b/functions.c
index 3aa474f..edb77e7 100644
--- a/functions.c
+++ b/functions.c
@@ -550,6 +550,10 @@ int disconnectclient(int fd, struct client *clients, struct ircdstate *ircdstate
   for (int i = 0; i < MAXCLIENTS; i++) {
     if (clients[i].fd == fd) {
       debugprint(DEBUG_FULL, "found and clearing fd %d from clients[%d]\n", fd, i);
+      // If the client was registered, record the time of the last client disconnect
+      if (clients[i].registered) {
+        ircdstate->clientchangetime = time(NULL);
+      }
       clients[i].fd = 0;
       clients[i].authed = 0;
       clients[i].registered = 0;
@@ -569,6 +573,10 @@ int disconnectclient(int fd, struct client *clients, struct ircdstate *ircdstate
       close(fd);
       // Now clients array is cleared, inform all other clients (source "0" since we trust this message)
       sendtoallclients(clients, alertmsg, 0, settings);
+      // If there are now no clients connected, record the time
+      if (numclients(clients) == 0) {
+        ircdstate->clientsnonetime = time(NULL);
+      }
       return 1;
     }
   }
@@ -858,7 +866,7 @@ int doautoreplay(int sourcefd, struct client *clients, struct settings *settings
     return 1;
   }
 
-  // If replaymode = "lastspoke" then send whatever replayseconds is set to
+  // If replaymode = "lastspoke" then send whatever happened since the user's current nick last spoke
   if (!strncmp(settings->replaymode, "lastspoke", strlen("lastspoke"))) {
     debugprint(DEBUG_FULL, "doautoreplay(): replaymode = \"lastspoke\".\n", settings->replayseconds);
     int secondsago = lastspokesecondsago(ircdstate->ircnick, settings->basedir);
@@ -874,6 +882,24 @@ int doautoreplay(int sourcefd, struct client *clients, struct settings *settings
     return 1;
   }
 
+  // If replaymode = "noclients" and there is currently only one client connected, then send whatever happened since there were last no clients connected
+  if (!strncmp(settings->replaymode, "noclients", strlen("noclients")) && numclients(clients) == 1) {
+    debugprint(DEBUG_FULL, "doautoreplay(): replaymode = \"noclients\", sending '%d' seconds of replay.\n", time(NULL) - ircdstate->clientsnonetime);
+    if (!doreplay(sourcefd, time(NULL) - ircdstate->clientsnonetime, clients, settings, ircdstate, channels)) {
+      debugprint(DEBUG_SOME, "doautoreplay(): doreplay() returned 0, returning 0 to caller...\n");
+      return 0;
+    }
+  }
+
+  // If replaymode = "lastchange" then send whatever happened since the last client registration or disconnection
+  if (!strncmp(settings->replaymode, "lastchange", strlen("lastchange"))) {
+    debugprint(DEBUG_FULL, "doautoreplay(): replaymode = \"lastchange\", sending '%d' seconds of replay.\n", time(NULL) - ircdstate->clientchangetime);
+    if (!doreplay(sourcefd, time(NULL) - ircdstate->clientchangetime, clients, settings, ircdstate, channels)) {
+      debugprint(DEBUG_SOME, "doautoreplay(): doreplay() returned 0, returning 0 to caller...\n");
+      return 0;
+    }
+  }
+
   // We shouldn't get here
   return 0;
 }
@@ -1046,9 +1072,10 @@ int rehash(struct settings *settings, char *failuremsg) {
     strcpy(failuremsg, "error getting 'replaymode' from configuration file");
     return 0;
   } else {
-    if (strcmp(settings->replaymode, "none") && strcmp(settings->replaymode, "time") && strcmp(settings->replaymode, "lastspoke")) {
+    if (strcmp(settings->replaymode, "none") && strcmp(settings->replaymode, "time") && strcmp(settings->replaymode, "lastspoke") &&
+        strcmp(settings->replaymode, "noclients") && strcmp(settings->replaymode, "lastchange")) {
       strcpy(settings->replaymode, oldreplaymode);
-      strcpy(failuremsg, "replaymode in configuration file must be one of \"none\", \"time\", or \"lastspoke\"");
+      strcpy(failuremsg, "replaymode in configuration file must be one of \"none\", \"time\", \"lastspoke\", \"noclients\", or \"lastchange\"");
       return 0;
     }
   }
-- 
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