From a0706572740221e06874d243bed87e49714aad79 Mon Sep 17 00:00:00 2001
From: Luke Bratch <luke@bratch.co.uk>
Date: Wed, 17 Jul 2024 23:05:34 +0100
Subject: Don't write any CTCP responses to the replay log file, and encourage
 bug reporting if the replay log file cannot be read.

---
 message.c | 25 +++++++++++++------------
 1 file changed, 13 insertions(+), 12 deletions(-)

(limited to 'message.c')

diff --git a/message.c b/message.c
index 8284268..6f4c9dd 100644
--- a/message.c
+++ b/message.c
@@ -149,7 +149,7 @@ int processservermessage(SSL *server_ssl, char *str, struct client *clients, int
           if (clients[i].fd) {
             char alertmsg[MAXDATASIZE];
             if (!doautoreplay(clients[i].fd, clients, settings, ircdstate, channels)) {
-              snprintf(alertmsg, MAXDATASIZE, "NOTICE %s :Unable to read replay log file!", ircdstate->ircnick);
+              snprintf(alertmsg, MAXDATASIZE, "NOTICE %s :Unable to read replay log file, please report this if you are expecting it to work!", ircdstate->ircnick);
               sendtoclient(sourcefd, alertmsg, clients, settings, 0);
             }
             snprintf(alertmsg, MAXDATASIZE, "NOTICE %s :Reconnection complete.", ircdstate->ircnick);
@@ -848,9 +848,10 @@ int processservermessage(SSL *server_ssl, char *str, struct client *clients, int
 
         int dontwritereplay = 0;
 
-        // If it seems to be a CTCP VERSION response, don't write to replay log
-        if (counter >= 4 && strncmp(tokens[3], ":\1VERSION", strlen(tokens[3])) == 0) {
-          debugprint(DEBUG_FULL, "Server NOTICE looked like a CTCP VERSION response, will not write to replay log.\n");
+        // If it seems to be a CTCP response, don't write to replay log
+        // to avoid logging and replay weirdness of potentially automated NOTICEs.
+        if (counter >= 4 && strncmp(tokens[3], ":\1", strlen(":\1")) == 0) {
+          debugprint(DEBUG_FULL, "Server NOTICE looked like a CTCP response, will not write to replay log.\n");
           dontwritereplay = 1;
         }
 
@@ -1125,7 +1126,7 @@ int processclientmessage(SSL *server_ssl, char *str, struct client *clients, int
 
     // Catch the client up using whichever replaymode is set
     if (!doautoreplay(sourcefd, clients, settings, ircdstate, channels)) {
-      snprintf(outgoingmsg, MAXDATASIZE, "NOTICE %s :Unable to read replay log file!", ircdstate->ircnick);
+      snprintf(outgoingmsg, MAXDATASIZE, "NOTICE %s :Unable to read replay log file, please report this if you are expecting it to work!", ircdstate->ircnick);
       sendtoclient(sourcefd, outgoingmsg, clients, settings, 0);
     }
 
@@ -1317,15 +1318,15 @@ int processclientmessage(SSL *server_ssl, char *str, struct client *clients, int
       logline(fullmsg, ircdstate, settings->basedir, LOG_PRIVMSG);
     }
 
-    // If it's a CTCP VERSION response then only send to the server (CTCP requests are delimited with \1)
-    // and don't write to replay log
-    if (counter >= 3 && strncmp(tokens[2], ":\1VERSION", strlen(tokens[2])) == 0) {
-      debugprint(DEBUG_FULL, "Client NOTICE looked like a CTCP VERSION response, so just sending to the server (and not writing to replay log).\n");
+    // If it seems to be a CTCP response, just send to the server and don't write to replay log
+    // to avoid logging and replay weirdness of potentially automated NOTICEs.
+    if (counter >= 3 && strncmp(tokens[2], ":\1", strlen(":\1")) == 0) {
+      debugprint(DEBUG_FULL, "Client NOTICE looked like a CTCP response, so just sending to the server (and not writing to replay log).\n");
       sendtoserver(server_ssl, str, strlen(str), sourcefd, clients, settings);
       return 1;
     }
 
-    // If it wasn't a CTCP VERSION response, then write to replay log if replay logging enabled...
+    // If it wasn't a CTCP response, then write to replay log if replay logging enabled...
     if (settings->replaylogging) {
       writereplayline(fullmsg, settings->basedir);
     }
@@ -1432,7 +1433,7 @@ int processclientmessage(SSL *server_ssl, char *str, struct client *clients, int
       debugprint(DEBUG_FULL, "Replaying '%s' which is '%d' seconds.\n", tokens[2], replayseconds);
 
       if (!doreplaytime(sourcefd, replayseconds, clients, settings, ircdstate, channels)) {
-        snprintf(outgoingmsg, MAXDATASIZE, "NOTICE %s :Unable to read replay log file!", ircdstate->ircnick);
+        snprintf(outgoingmsg, MAXDATASIZE, "NOTICE %s :Unable to read replay log file, please report this if you are expecting it to work!", ircdstate->ircnick);
         sendtoclient(sourcefd, outgoingmsg, clients, settings, 0);
       }
       free(timestrcopyPtr);
@@ -1510,7 +1511,7 @@ int processclientmessage(SSL *server_ssl, char *str, struct client *clients, int
           return 1;
         }
         if (!doreplaytime(sourcefd, time(NULL) - codetime, clients, settings, ircdstate, channels)) {
-          snprintf(outgoingmsg, MAXDATASIZE, "NOTICE %s :Unable to read replay log file!", ircdstate->ircnick);
+          snprintf(outgoingmsg, MAXDATASIZE, "NOTICE %s :Unable to read replay log file, please report this if you are expecting it to work!", ircdstate->ircnick);
           sendtoclient(sourcefd, outgoingmsg, clients, settings, 0);
           return 1;
         }
-- 
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