From 95d9c06b7b638c7651e0320f25b6561e4ef5b254 Mon Sep 17 00:00:00 2001
From: Nick Chambers <nchambers@securitea.app>
Date: Mon, 28 Jun 2021 15:49:44 -0500
Subject: [PATCH 1/2] Clean up some visual problems in the code

---
 rowbot | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/rowbot b/rowbot
index 83a8eb5..a72f4e2 100755
--- a/rowbot
+++ b/rowbot
@@ -59,10 +59,6 @@ error() {
 # utilities
 ###
 
-parent() {
-  (( BASHPID == $$ ))
-}
-
 has() {
   hash "$1" 2>/dev/null
 }
@@ -80,6 +76,14 @@ die() {
   exit "$status"
 }
 
+is-parent() {
+  (( BASHPID == $$ ))
+}
+
+is-channel() {
+  [[ ${1:0:1} = \# ]]
+}
+
 is-log-level() {
   local level
 
@@ -94,7 +98,7 @@ is-log-level() {
 
 ###
 # argument parser for parsing arguments
-##
+###
 
 original_args=( "$@" )
 declare -A opts
@@ -128,7 +132,7 @@ prog_args=( "$@" )
 
 ###
 # default config
-##
+###
 
 server=irc.libera.chat port=6667 tls=no client_cert=
 nick=rowbot-dev ident=rowbot realname=rowbot chan=
@@ -286,7 +290,7 @@ cleanup() {
   fi
 }
 
-if parent; then
+if is-parent; then
   trap cleanup EXIT
 fi
 
@@ -694,7 +698,7 @@ who() {
 
 ###
 # app hooks
-##
+###
 
 hook_pre_PRIVMSG_nolog() {
   local words

From bfd13f8350277d529b3b75dfd44dbc13746f2e5e Mon Sep 17 00:00:00 2001
From: Nick Chambers <nchambers@securitea.app>
Date: Tue, 29 Jun 2021 20:32:23 -0500
Subject: [PATCH 2/2] Apply bot scanning

---
 rowbot | 30 +++++++++++++++++++++++++++---
 1 file changed, 27 insertions(+), 3 deletions(-)

diff --git a/rowbot b/rowbot
index a72f4e2..5705af0 100755
--- a/rowbot
+++ b/rowbot
@@ -84,6 +84,30 @@ is-channel() {
   [[ ${1:0:1} = \# ]]
 }
 
+is-bot() {
+  local score=0
+
+  if [[ ${args[-1]:0:3} = $'\xe2\x80\x8b' ]]; then
+    (( score += 100 ))
+  fi
+
+  if [[ $from = *-bot ]]; then
+    (( score += 30 ))
+  elif [[ $from = *bot ]]; then
+    (( score += 15 ))
+  fi
+
+  if [[ /$host/ = */bot/* ]]; then
+    (( score += 100 ))
+  fi
+
+  if [[ ${args[-1]} = '['*']' ]]; then
+    (( score += 20 ))
+  fi
+
+  printf %d "$score"
+}
+
 is-log-level() {
   local level
 
@@ -229,8 +253,6 @@ if [[ $markov_seed ]]; then
         markov_chains[$key]+=" ${words[$idx + 2]}"
       fi
     done
-
-    debug "markov seeds: %s" "${!markov_chains[*]}"
   else
     die "seed file does not exist: %s" "$markov_seed"
   fi
@@ -1062,10 +1084,12 @@ while recv line; do
 
     if [[ $last = "$trigger"* ]]; then
       is_action=yes
+      bot_score=$(is-bot)
       action=${last#"$trigger"} action=${action%% *}
       action_line=${last#"$trigger$action" }
       read -r action_line <<< "$action_line"
       read -ra action_args <<< "$action_line"
+      debug "bot score: %d" "$bot_score"
     fi
   fi
 
@@ -1090,7 +1114,7 @@ while recv line; do
     "$hook"
   done < <(compgen -A function "hook_post_${cmd^^}_")
 
-  if [[ $is_action = yes ]]; then
+  if [[ $is_action = yes ]] && (( bot_score < 40 )); then
     while IFS= read -r hook; do
       "$hook"
     done < <(compgen -A function "hook_cmd_")