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pi-hole/advanced/Scripts/piholeDebug.sh
Marcus Hildum d0b3727c5d Consistency 
Yet more cleanup
2016-10-22 00:32:36 -07:00

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usr/bin/env bash
# Pi-hole: A black hole for Internet advertisements
# (c) 2015, 2016 by Jacob Salmela
# Network-wide ad blocking via your Raspberry Pi
# http://pi-hole.net
# Generates pihole_debug.log to be used for troubleshooting.
#
# Pi-hole is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
set -o pipefail
######## GLOBAL VARS ########
DEBUG_LOG="/var/log/pihole_debug.log"
DNSMASQFILE="/etc/dnsmasq.conf"
PIHOLECONFFILE="/etc/dnsmasq.d/01-pihole.conf"
LIGHTTPDFILE="/etc/lighttpd/lighttpd.conf"
LIGHTTPDERRFILE="/var/log/lighttpd/error.log"
GRAVITYFILE="/etc/pihole/gravity.list"
HOSTSFILE="/etc/hosts"
WHITELISTFILE="/etc/pihole/whitelist.txt"
BLACKLISTFILE="/etc/pihole/blacklist.txt"
ADLISTSFILE="/etc/pihole/adlists.list"
PIHOLELOG="/var/log/pihole.log"
WHITELISTMATCHES="/tmp/whitelistmatches.list"
# Header info and introduction
cat << EOM
::: Beginning Pi-hole debug at $(date)!
::: This debugging process will collect information from your running configuration,
::: and optionally upload the generated log to a unique and random directory on
::: Termbin.com. NOTE: All log files auto-delete after 1 month and you are the only
::: person who is given the unique URL. Please consider where you post this link.
:::
EOM
######## FIRST CHECK ########
# Must be root to debug
if [[ "${EUID}" -eq 0 ]]; then
echo "::: Script is executing as root user..."
else
echo "::: Non-root user detected..."
# Check if sudo is actually installed
if [ -x "$(command -v sudo)" ]; then
export SUDO="sudo"
echo "::: sudo command located, debug will run under sudo."
else
echo "::: Unable to locate sudo command. Please install sudo or run this as root."
exit 1
fi
fi
# Ensure the file exists, create if not, clear if exists.
if [ ! -f "${DEBUG_LOG}" ]; then
${SUDO} touch ${DEBUG_LOG}
${SUDO} chmod 644 ${DEBUG_LOG}
${SUDO} chown "$USER":root ${DEBUG_LOG}
else
truncate -s 0 ${DEBUG_LOG}
fi
### Private functions exist here ###
log_write() {
echo "${1}" >> "${DEBUG_LOG}"
}
version_check() {
log_write "############################################################"
log_write "########## Installed Versions ##########"
log_write "############################################################"
echo "::: Detecting Pi-hole installed versions."
pi_hole_ver="$(cd /etc/.pihole/ && git describe --tags --abbrev=0)" \
&& log_write "Pi-hole Version: $pi_hole_ver" || log_write "Pi-hole git repository not detected."
admin_ver="$(cd /var/www/html/admin && git describe --tags --abbrev=0)" \
&& log_write "WebUI Version: $admin_ver" || log_write "Pi-hole Admin Pages git repository not detected."
echo "::: Writing lighttpd version to logfile."
light_ver="$(lighttpd -v |& head -n1)" && log_write "${light_ver}" || log_write "lighttpd not installed."
echo "::: Writing PHP version to logfile."
php_ver="$(php -v |& head -n1)" && log_write "${php_ver}" || log_write "PHP not installed."
}
distro_check() {
echo "############################################################" >> ${DEBUG_LOG}
echo "######## Installed OS Distribution #########" >> ${DEBUG_LOG}
echo "############################################################" >> ${DEBUG_LOG}
echo "::: Checking installed OS Distribution release."
TMP=$(cat /etc/*release || echo "Failed to find release")
echo "::: Writing OS Distribution release to logfile."
echo "${TMP}" >> ${DEBUG_LOG}
echo >> ${DEBUG_LOG}
}
ip_check() {
echo "############################################################" >> ${DEBUG_LOG}
echo "######## IP Address Information #########" >> ${DEBUG_LOG}
echo "############################################################" >> ${DEBUG_LOG}
echo "::: Writing local IPs to logfile"
IPADDR="$(ip a | awk -F " " '{ for(i=1;i<=NF;i++) if ($i == "inet") print $(i+1) }')"
echo "${IPADDR}" >> ${DEBUG_LOG}
IP6ADDR="$(ip a | awk -F " " '{ for(i=1;i<=NF;i++) if ($i == "inet6") print $(i+1) }')" \
&& echo "${IP6ADDR}" >> ${DEBUG_LOG} || echo "No IPv6 addresses found." >> ${DEBUG_LOG}
echo >> ${DEBUG_LOG}
echo "::: Locating default gateway and checking connectivity"
GATEWAY=$(ip r | grep default | cut -d ' ' -f 3)
if [[ $? = 0 ]]; then
echo "::: Pinging default IPv4 gateway..."
GATEWAY_CHECK=$(ping -q -w 3 -c 3 -n "${GATEWAY}" | tail -n3)
if [[ $? = 0 ]]; then
echo "IPv4 Gateway check:" >> ${DEBUG_LOG}
else
echo "IPv4 Gateway check failed:" >> ${DEBUG_LOG}
fi
echo "${GATEWAY_CHECK}" >> ${DEBUG_LOG}
echo >> ${DEBUG_LOG}
echo "::: Pinging Internet via IPv4..."
INET_CHECK=$(ping -q -w 5 -c 3 -n 8.8.8.8 | tail -n3)
if [[ $? = 0 ]]; then
echo "IPv4 Internet check:" >> ${DEBUG_LOG}
else
echo "IPv4 Internet check failed:" >> ${DEBUG_LOG}
fi
echo "${INET_CHECK}" >> ${DEBUG_LOG}
echo >> ${DEBUG_LOG}
fi
GATEWAY6=$(ip -6 r | grep default | cut -d ' ' -f 3)
if [[ $? = 0 ]]; then
echo "::: Pinging default IPv6 gateway..."
GATEWAY6_CHECK=$(ping6 -q -w 3 -c 3 -n "${GATEWAY6}" | tail -n3)
if [[ $? = 0 ]]; then
echo "IPv6 Gateway check:" >> ${DEBUG_LOG}
else
echo "IPv6 Gateway check failed:" >> ${DEBUG_LOG}
fi
echo "::: Pinging Internet via IPv6..."
GATEWAY6_CHECK=$(ping6 -q -w 3 -c 3 -n 2001:4860:4860::8888 | tail -n3)
if [[ $? = 0 ]]; then
echo "IPv6 Internet check:" >> ${DEBUG_LOG}
else
echo "IPv6 Internet check failed:" >> ${DEBUG_LOG}
fi
else
GATEWAY_CHECK="No IPv6 Gateway Detected"
fi
echo "${GATEWAY_CHECK}" >> ${DEBUG_LOG}
echo >> ${DEBUG_LOG}
}
hostnameCheck() {
echo "############################################################" >> ${DEBUG_LOG}
echo "######## Hostname Information #########" >> ${DEBUG_LOG}
echo "############################################################" >> ${DEBUG_LOG}
echo "::: Writing locally configured hostnames to logfile"
# Write the hostname output to compare against entries in /etc/hosts, which is logged next
echo "This Pi-hole is: $(hostname)" >> ${DEBUG_LOG}
echo "::: Writing hosts file to debug log..."
echo "### Hosts ###" >> ${DEBUG_LOG}
if [ -e "${HOSTSFILE}" ]; then
cat "${HOSTSFILE}" >> ${DEBUG_LOG}
echo >> ${DEBUG_LOG}
else
echo "No hosts file found!" >> ${DEBUG_LOG}
printf ":::\tNo hosts file found!\n"
fi
}
portCheck() {
echo "############################################################" >> ${DEBUG_LOG}
echo "######## Open Port Information #########" >> ${DEBUG_LOG}
echo "############################################################" >> ${DEBUG_LOG}
echo "::: Detecting local server port 80 and 53 processes."
${SUDO} lsof -i :80 >> ${DEBUG_LOG}
${SUDO} lsof -i :53 >> ${DEBUG_LOG}
echo >> ${DEBUG_LOG}
}
testResolver() {
echo "############################################################" >> ${DEBUG_LOG}
echo "############ Resolver Functions Check ############" >> ${DEBUG_LOG}
echo "############################################################" >> ${DEBUG_LOG}
# Find a blocked url that has not been whitelisted.
TESTURL="doubleclick.com"
if [ -s "${WHITELISTMATCHES}" ]; then
while read -r line; do
CUTURL=${line#*" "}
if [ "${CUTURL}" != "Pi-Hole.IsWorking.OK" ]; then
while read -r line2; do
CUTURL2=${line2#*" "}
if [ "${CUTURL}" != "${CUTURL2}" ]; then
TESTURL="${CUTURL}"
break 2
fi
done < "${WHITELISTMATCHES}"
fi
done < "${GRAVITYFILE}"
fi
echo "Resolution of ${TESTURL} from Pi-hole:" >> ${DEBUG_LOG}
LOCALDIG=$(dig "${TESTURL}" @127.0.0.1)
if [[ $? = 0 ]]; then
echo "${LOCALDIG}" >> ${DEBUG_LOG}
else
echo "Failed to resolve ${TESTURL} on Pi-hole" >> ${DEBUG_LOG}
fi
echo >> ${DEBUG_LOG}
echo "Resolution of ${TESTURL} from 8.8.8.8:" >> ${DEBUG_LOG}
REMOTEDIG=$(dig "${TESTURL}" @8.8.8.8)
if [[ $? = 0 ]]; then
echo "${REMOTEDIG}" >> ${DEBUG_LOG}
else
echo "Failed to resolve ${TESTURL} on 8.8.8.8" >> ${DEBUG_LOG}
fi
echo >> ${DEBUG_LOG}
echo "Pi-hole dnsmasq specific records lookups" >> ${DEBUG_LOG}
echo "Cache Size:" >> ${DEBUG_LOG}
dig +short chaos txt cachesize.bind >> ${DEBUG_LOG}
echo "Insertions count:" >> ${DEBUG_LOG}
dig +short chaos txt insertions.bind >> ${DEBUG_LOG}
echo "Evictions count:" >> ${DEBUG_LOG}
dig +short chaos txt evictions.bind >> ${DEBUG_LOG}
echo "Misses count:" >> ${DEBUG_LOG}
dig +short chaos txt misses.bind >> ${DEBUG_LOG}
echo "Hits count:" >> ${DEBUG_LOG}
dig +short chaos txt hits.bind >> ${DEBUG_LOG}
echo "Auth count:" >> ${DEBUG_LOG}
dig +short chaos txt auth.bind >> ${DEBUG_LOG}
echo "Upstream Servers:" >> ${DEBUG_LOG}
dig +short chaos txt servers.bind >> ${DEBUG_LOG}
echo >> ${DEBUG_LOG}
}
checkProcesses() {
echo "#######################################" >> ${DEBUG_LOG}
echo "########### Processes Check ###########" >> ${DEBUG_LOG}
echo "#######################################" >> ${DEBUG_LOG}
echo ":::"
echo "::: Logging status of lighttpd and dnsmasq..."
PROCESSES=( lighttpd dnsmasq )
for i in "${PROCESSES[@]}"; do
echo "" >> ${DEBUG_LOG}
echo -n "${i}" >> "${DEBUG_LOG}"
echo " processes status:" >> ${DEBUG_LOG}
${SUDO} systemctl -l status "${i}" >> "${DEBUG_LOG}"
done
echo >> ${DEBUG_LOG}
}
debugLighttpd() {
echo "::: Writing lighttpd to debug log..."
echo "#######################################" >> ${DEBUG_LOG}
echo "############ lighttpd.conf ############" >> ${DEBUG_LOG}
echo "#######################################" >> ${DEBUG_LOG}
if [ -e "${LIGHTTPDFILE}" ]; then
while read -r line; do
if [ ! -z "${line}" ]; then
[[ "${line}" =~ ^#.*$ ]] && continue
echo "${line}" >> ${DEBUG_LOG}
fi
done < "${LIGHTTPDFILE}"
echo >> ${DEBUG_LOG}
else
echo "No lighttpd.conf file found!" >> ${DEBUG_LOG}
printf ":::\tNo lighttpd.conf file found\n"
fi
if [ -e "${LIGHTTPDERRFILE}" ]; then
echo "#######################################" >> ${DEBUG_LOG}
echo "######### lighttpd error.log ##########" >> ${DEBUG_LOG}
echo "#######################################" >> ${DEBUG_LOG}
cat "${LIGHTTPDERRFILE}" >> ${DEBUG_LOG}
else
echo "No lighttpd error.log file found!" >> ${DEBUG_LOG}
printf ":::\tNo lighttpd error.log file found\n"
fi
echo >> ${DEBUG_LOG}
}
### END FUNCTIONS ###
version_check
distro_check
ip_check
hostnameCheck
portCheck
checkProcesses
testResolver
debugLighttpd
echo "::: Writing dnsmasq.conf to debug log..."
echo "#######################################" >> ${DEBUG_LOG}
echo "############### Dnsmasq ###############" >> ${DEBUG_LOG}
echo "#######################################" >> ${DEBUG_LOG}
if [ -e "${DNSMASQFILE}" ]; then
#cat $DNSMASQFILE >> $DEBUG_LOG
while read -r line; do
if [ ! -z "${line}" ]; then
[[ "${line}" =~ ^#.*$ ]] && continue
echo "${line}" >> ${DEBUG_LOG}
fi
done < "${DNSMASQFILE}"
echo >> ${DEBUG_LOG}
else
echo "No dnsmasq.conf file found!" >> ${DEBUG_LOG}
printf ":::\tNo dnsmasq.conf file found!\n"
fi
echo "::: Writing 01-pihole.conf to debug log..."
echo "#######################################" >> ${DEBUG_LOG}
echo "########### 01-pihole.conf ############" >> ${DEBUG_LOG}
echo "#######################################" >> ${DEBUG_LOG}
if [ -e "${PIHOLECONFFILE}" ]; then
while read -r line; do
if [ ! -z "${line}" ]; then
[[ "${line}" =~ ^#.*$ ]] && continue
echo "${line}" >> ${DEBUG_LOG}
fi
done < "${PIHOLECONFFILE}"
echo >> ${DEBUG_LOG}
else
echo "No 01-pihole.conf file found!" >> ${DEBUG_LOG}
printf ":::\tNo 01-pihole.conf file found\n"
fi
echo "::: Writing size of gravity.list to debug log..."
echo "#######################################" >> ${DEBUG_LOG}
echo "############ gravity.list #############" >> ${DEBUG_LOG}
echo "#######################################" >> ${DEBUG_LOG}
if [ -e "${GRAVITYFILE}" ]; then
wc -l "${GRAVITYFILE}" >> ${DEBUG_LOG}
echo >> ${DEBUG_LOG}
else
echo "No gravity.list file found!" >> ${DEBUG_LOG}
printf ":::\tNo gravity.list file found\n"
fi
### Pi-hole application specific logging ###
echo "::: Writing whitelist to debug log..."
echo "#######################################" >> ${DEBUG_LOG}
echo "############## Whitelist ##############" >> ${DEBUG_LOG}
echo "#######################################" >> ${DEBUG_LOG}
if [ -e "${WHITELISTFILE}" ]; then
cat "${WHITELISTFILE}" >> ${DEBUG_LOG}
echo >> ${DEBUG_LOG}
else
echo "No whitelist.txt file found!" >> ${DEBUG_LOG}
printf ":::\tNo whitelist.txt file found!\n"
fi
echo "::: Writing blacklist to debug log..."
echo "#######################################" >> ${DEBUG_LOG}
echo "############## Blacklist ##############" >> ${DEBUG_LOG}
echo "#######################################" >> ${DEBUG_LOG}
if [ -e "${BLACKLISTFILE}" ]; then
cat "${BLACKLISTFILE}" >> ${DEBUG_LOG}
echo >> ${DEBUG_LOG}
else
echo "No blacklist.txt file found!" >> ${DEBUG_LOG}
printf ":::\tNo blacklist.txt file found!\n"
fi
echo "::: Writing adlists.list to debug log..."
echo "#######################################" >> ${DEBUG_LOG}
echo "############ adlists.list #############" >> ${DEBUG_LOG}
echo "#######################################" >> ${DEBUG_LOG}
if [ -e "${ADLISTSFILE}" ]; then
while read -r line; do
if [ ! -z "${line}" ]; then
[[ "${line}" =~ ^#.*$ ]] && continue
echo "${line}" >> ${DEBUG_LOG}
fi
done < "${ADLISTSFILE}"
echo >> ${DEBUG_LOG}
else
echo "No adlists.list file found... using adlists.default!" >> ${DEBUG_LOG}
printf ":::\tNo adlists.list file found... using adlists.default!\n"
fi
# Continuously append the pihole.log file to the pihole_debug.log file
dumpPiHoleLog() {
trap '{ echo -e "\n::: Finishing debug write from interrupt... Quitting!" ; exit 1; }' INT
echo -e "::: Writing current Pi-hole traffic to debug log...\n:::\tTry loading any/all sites that you are having trouble with now... \n:::\t(Press ctrl+C to finish)"
echo "#######################################" >> ${DEBUG_LOG}
echo "############# pihole.log ##############" >> ${DEBUG_LOG}
echo "#######################################" >> ${DEBUG_LOG}
if [ -e "${PIHOLELOG}" ]; then
while true; do
tail -f "${PIHOLELOG}" >> ${DEBUG_LOG}
echo >> ${DEBUG_LOG}
done
else
echo "No pihole.log file found!" >> ${DEBUG_LOG}
printf ":::\tNo pihole.log file found!\n"
fi
}
# Anything to be done after capturing of pihole.log terminates
finalWork() {
echo "::: Finshed debugging!"
echo "::: The debug log can be uploaded to Termbin.com for easier sharing."
read -r -p "::: Would you like to upload the log? [y/N] " response
case ${response} in
[yY][eE][sS]|[yY])
TERMBIN=$(cat /var/log/pihole_debug.log | nc termbin.com 9999)
;;
*)
echo "::: Log will NOT be uploaded to Termbin."
;;
esac
# Check if termbin.com is reachable. When it's not, point to local log instead
if [ -n "${TERMBIN}" ]; then
echo "::: Debug log can be found at : ${TERMBIN}"
else
echo "::: Debug log can be found at : /var/log/pihole_debug.log"
fi
}
trap finalWork EXIT
### Method calls for additional logging ###
dumpPiHoleLog
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