Merge pull request #1748 from JonathonHall-Purism/change-time-improvements

Alexgithublab: change time, 3.0 (supersedes #1737)

Author: tlaurion

initrd/bin/change-time.sh

@@ -0,0 +1,73 @@
+#!/bin/bash
+#change time using hwclock and date -s
+
+clear
+
+echo "The system time is: $(date "+%Y-%m-%d %H:%M:%S %Z")"
+echo
+echo "Please enter the current date and time in UTC"
+echo "To find the current date and time in UTC, please check https://time.is/UTC"
+echo
+
+get_date () {
+    local field_name min max
+    field_name="$1"
+    min="$2"
+    max="$3"
+    echo -n "Enter the current $field_name [$min-$max]: "
+    read -r value
+    echo
+
+    #must be a number between $2 and $3
+    while [[ ! $value =~ ^[0-9]+$ ]] || [[ ${value#0} -lt $min ]] || [[ ${value#0} -gt $max ]];
+    do
+        echo "Please try again, it must be a number from $min to $max."
+        echo -n "Enter the current $field_name [$min-$max]: "
+        read -r value
+        echo
+    done
+
+    # Pad with zeroes to length of maximum value.
+    # The "$((10#$value))" is needed to handle 08 and 09 correctly, which printf
+    # would otherwise interpret as octal.  This effectively strips the leading
+    # zero by evaluating an arithmetic expression with the base set to 10.
+    value="$(printf "%0${#max}u" "$((10#$value))")"
+}
+
+enter_time_and_change()
+{
+    get_date "year" "2024" "2200"
+    year=$value
+    get_date "month" "01" "12"
+    month=$value
+    get_date "day" "01" "31"
+    day=$value
+    get_date "hour" "00" "23"
+    hour=$value
+    get_date "minute" "00" "59"
+    min=$value
+    get_date "second" "00" "59"
+    sec=$value
+
+    if ! date -s "$year-$month-$day $hour:$min:$sec" &>/dev/null; then
+        return 1
+    fi
+    return 0
+}
+
+while ! enter_time_and_change; do
+    echo "Could not set the date to $year-$month-$day $hour:$min:$sec"
+    read -rp "Try again? [Y/n]: " try_again_confirm
+    if [ "${try_again_confirm^^}" = N ]; then
+            exit 1
+    fi
+    echo
+done
+
+hwclock -w
+echo "The system date has been sucessfully set to $year-$month-$day $hour:$min:$sec UTC"
+echo
+
+echo "Press Enter to return to the menu"
+echo
+read -r nothing

initrd/bin/gui-init

@@ -430,6 +430,7 @@ show_options_menu()
     --menu "" 0 80 10 \
     'b' ' Boot Options -->' \
     't' ' TPM/TOTP/HOTP Options -->' \
+    'h' ' Change system time' \
     'u' ' Update checksums and sign all files in /boot' \
     'c' ' Change configuration settings -->' \
     'f' ' Flash/Update the BIOS -->' \
@@ -450,6 +451,9 @@ show_options_menu()
     t )
       show_tpm_totp_hotp_options_menu
       ;;
+    h )
+      change-time.sh
+      ;;
     u )
       prompt_update_checksums
       ;;
@@ -543,16 +547,8 @@ prompt_totp_mismatch()
 {
   TRACE_FUNC
   if (whiptail_warning --title "TOTP/HOTP code mismatched" \
-    --yesno "TOTP/HOTP code mismatches could indicate either TPM tampering or clock drift:\n\nTo correct clock drift: 'date -s yyyy-MM-DD hh:mm:ss' in UTC timezone\nand save it to the RTC: 'hwclock -w'\nthen reboot and try again.\n\nWould you like to exit to a recovery console?" 0 80) then
-    echo ""
-    echo "To correct clock drift: 'date -s yyyy-MM-DD hh:mm:ss' in UTC timezone"
-    echo "and save it to the RTC: 'hwclock -w'"
-    echo ""
-    echo "Alternatively you could do this automatically with an Ethernet cable connected to a functional network: 'network-init-recovery'"
-    echo ""
-    echo "Then reboot and try again"
-    echo ""
-    recovery "TOTP/HOTP mismatch"
+    --yesno "TOTP/HOTP code mismatches could indicate TPM tampering or clock drift.\n\nThe current UTC time is: $(date "+%Y-%m-%d %H:%M:%S")\nIf this is incorrect, set the correct time and check TOTP/HOTP again.\n\nDo you want to change the time?" 0 80) then
+  		change-time.sh
   fi
 }