From ff9dd5f667181fccee16d2444515524e6fcf50e1 Mon Sep 17 00:00:00 2001
From: alexgithublab <alexandre@nitrokey.com>
Date: Wed, 24 Jul 2024 14:09:40 +0200
Subject: [PATCH] change system time feature

Signed-off-by: Thierry Laurion <insurgo@riseup.net>
---
 initrd/bin/change-time | 60 ++++++++++++++++++++++++++++++++++++++++++
 initrd/bin/gui-init    |  4 +++
 2 files changed, 64 insertions(+)
 create mode 100644 initrd/bin/change-time

diff --git a/initrd/bin/change-time b/initrd/bin/change-time
new file mode 100644
index 00000000..af8f6de7
--- /dev/null
+++ b/initrd/bin/change-time
@@ -0,0 +1,60 @@
+#!/bin/bash
+#change time using hwclock and date -s
+
+clear
+
+echo -e -n "Please enter the date and time you wish to set\n"
+
+get_date () {
+    echo -e -n "enter the $1 please ($2-$3) (enter for $2)\n"
+    read -n $4 value
+    echo -e "\n"
+    #if enter
+    if [[ $value = "" ]]; then 
+        value=$2    
+    fi
+
+    #must be a $4 digits number between $2 and $3
+    while [[ ! $value =~ ^[0-9]{$4} ]] || [[ ${value#0} -lt $2 ]] || [[ ${value#0} -gt $3 ]]; 
+    do    
+        echo -e -n "wrong $1, you enter "$value" please enter it again, must be a $4 digits number between $2 and $3 (press enter for $2) \n"
+        read -n $4 value
+        echo -e "\n"
+        if [[ $value = "" ]]; then 
+            value=$2    
+        fi
+    done
+}
+
+get_date "year" "2024" "2200" "4"
+year=$value
+get_date "month" "01" "12" "2"
+month=$value
+get_date "day" "01" "31" "2"
+day=$value
+get_date "hour" "00" "23" "2"
+hour=$value
+get_date "min" "00" "59" "2"
+min=$value
+get_date "sec" "00" "59" "2"
+sec=$value
+
+##getting the output of date -s 
+OUTPUT=$(date -s "$year-$month-$day $hour:$min:$sec" 2>&1)
+
+##if output is starting with the letter d which is the beginning of the error message then we do the script again 
+if [[ ${OUTPUT} == d* ]]; then
+    echo "The date is not correct, press any key to set it again"
+    echo -e "\n"
+    read -n 1 noting
+    clear
+    change-time
+else
+    hwclock -w
+    echo -e "the date has been sucessfully set to $year-$month-$day $hour:$min:$sec"
+    echo -e "\n"
+
+    echo -e "press any key to return to the menu"
+    echo -e "\n"
+    read -n 1 nothing
+fi
\ No newline at end of file
diff --git a/initrd/bin/gui-init b/initrd/bin/gui-init
index dc9ec20d..8173fae6 100755
--- a/initrd/bin/gui-init
+++ b/initrd/bin/gui-init
@@ -438,6 +438,7 @@ show_options_menu()
     'C' ' Reencrypt LUKS container -->' \
     'P' ' Change LUKS Disk Recovery Key passphrase ->' \
     'R' ' Check/Update file hashes on root disk -->' \
+    'h' ' Change system time' \
     'x' ' Exit to recovery shell' \
     'r' ' <-- Return to main menu' \
     2>/tmp/whiptail || recovery "GUI menu failed"
@@ -476,6 +477,9 @@ show_options_menu()
     R )
       root-hashes-gui.sh
       ;;
+    h )
+      change-time
+      ;;
     x )
       recovery "User requested recovery shell"
       ;;