From f9bf26651146a9f2bab50bcb2511b2b296ecc3ca Mon Sep 17 00:00:00 2001
From: Adrien Bourmault <neox@os-k.eu>
Date: Sun, 10 Jan 2021 20:26:34 +0100
Subject: [PATCH] Captcha : Randomize digit list for INTRUS

---
 captcha/captcha.sh | 18 ++----------------
 1 file changed, 2 insertions(+), 16 deletions(-)

diff --git a/captcha/captcha.sh b/captcha/captcha.sh
index aad5223..756ddfb 100755
--- a/captcha/captcha.sh
+++ b/captcha/captcha.sh
@@ -32,29 +32,15 @@ else
     }
 fi
 
-DECOUPE()
-{
-    LENGTH=${#INPUT}
-    MID=$((LENGTH / 2))
-    
-    get_random
-    R=$(($R % 2))
-    
-    if [[ $R -eq 1 ]]; then
-        echo "Tapez ${INPUT:0:$MID}\n   suivi de ${INPUT:$MID:$MID}"
-    else
-        echo "Saisissez ${INPUT:0:$MID}\n   puis ${INPUT:$MID:$MID}"
-    fi
-}
-
 INTRUS()
 {
     LENGTH=${#INPUT}
     NUMBERS=$(echo $INPUT | grep -o . | tr '\n' ' ')
     SORTED_UNIQ_NUM=$(echo "${NUMBERS[@]}" | sort -u | tr '\n' ' ')
+    RANDOM_DIGITS=$(echo 123456789 | grep -o . | sort -R | tr '\n' ' ')
     INTRUS=-1
     
-    for i in 1 2 3 4 5 6 7 8 9
+    for i in ${RANDOM_DIGITS[@]}
     do
         if [[ ! " ${SORTED_UNIQ_NUM[@]} " =~ " ${i} " ]]; then
             INTRUS=$i