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feat: Detect modified ISO

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Kroese 2024-05-09 19:55:13 +02:00 committed by GitHub
parent 0d2a0d03d5
commit 8cf4278f87
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GPG Key ID: B5690EEEBB952194
1 changed files with 12 additions and 4 deletions
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16
src/install.sh
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@ -31,7 +31,7 @@ skipInstall() {
startInstall() {
html "Starting Windows..."
html "Starting $APP..."
if [ -n "$CUSTOM" ]; then
@ -61,11 +61,19 @@ startInstall() {
# Check if the ISO was already processed by our script
local magic
local byte="16"
[[ "$MANUAL" == [Yy1]* ]] && byte="17"
local auto="16"
local manual="17"
magic=$(dd if="$ISO" seek=0 bs=1 count=1 status=none | tr -d '\000')
magic="$(printf '%s' "$magic" | od -A n -t x1 -v | tr -d ' \n')"
if [[ "$magic" == "$auto" ]] || [[ "$magic" == "$manual" ]]; then
if [ -n "$CUSTOM" ] && [ -z "$ORIGINAL" ]; then
warn "this ISO file has already been modified by a previous installation!"
fi
fi
local byte="$auto"
[[ "$MANUAL" == [Yy1]* ]] && byte="$manual"
[[ "$magic" == "$byte" ]] && return 1
fi
@ -197,8 +205,8 @@ detectCustom() {
CUSTOM="$base"
ORIGINAL="$file"
else
CUSTOM="$file"
rm -f "$base"
CUSTOM="$file"
fi
return 0