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Use more secure installation log process.

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Signed-off-by: Dan Schaper <dan.schaper@pi-hole.net>
This commit is contained in:
Dan Schaper 2018-01-20 05:55:48 -08:00
parent b2eb364a4b
commit a7f0137e5f
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GPG key ID: DF500355947432A9
1 changed files with 20 additions and 5 deletions
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25
automated install/basic-install.sh
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@ -28,8 +28,7 @@ set -e
# Local variables will be in lowercase and will exist only within functions
# It's still a work in progress, so you may see some variance in this guideline until it is complete
# We write to a temporary file before moving the log to the pihole folder
tmpLog=/tmp/pihole-install.log
# Location for final installation log storage
instalLogLoc=/etc/pihole/install.log
# This is an important file as it contains information specific to the machine it's being installed on
setupVars=/etc/pihole/setupVars.conf
@ -1891,8 +1890,24 @@ FTLdetect() {
# Install FTL
FTLinstall "${binary}" || return 1
fi
}
make_temporary_log() {
# Create a random temporary file for the log
TEMPLOG=$(mktemp /tmp/pihole_temp.XXXXXX)
# Open handle 3 for templog
# https://stackoverflow.com/questions/18460186/writing-outputs-to-log-file-and-console
exec 3>"$TEMPLOG"
# Delete templog, but allow for addressing via file handle
# This lets us write to the log without having a temporary file on the drive, which
# is meant to be a security measure so there is not a lingering file on the drive during the debug process
rm "$TEMPLOG"
}
copy_to_install_log() {
# Copy the contents of file descriptor 3 into the install log
# Since we use color codes such as '\e[1;33m', they should be removed
cat /proc/$$/fd/3 | sed 's/\[[0-9;]\{1,5\}m//g' > "${installLogLoc}"
}
main() {
@ -2031,7 +2046,7 @@ main() {
fi
# Install and log everything to a file
installPihole | tee ${tmpLog}
installPihole | tee ${TEMPLOG}
else
# Source ${setupVars} to use predefined user variables in the functions
source ${setupVars}
@ -2058,11 +2073,11 @@ main() {
LIGHTTPD_ENABLED=$(service lighttpd status | awk '/Loaded:/ {print $0}' | grep -c 'enabled' || true)
fi
updatePihole | tee ${tmpLog}
updatePihole | tee ${TEMPLOG}
fi
# Move the log file into /etc/pihole for storage
mv ${tmpLog} ${instalLogLoc}
copy_to_install_log
if [[ "${INSTALL_WEB}" == true ]]; then
# Add password to web UI if there is none