mirror of
https://github.com/pi-hole/pi-hole
synced 2024-12-23 07:18:07 +00:00
comments for every line
This commit is contained in:
Jacob Salmela
parent
cc946ce068
commit
5902be2a49
@ -32,6 +32,7 @@ WHITELISTMATCHES="/tmp/whitelistmatches.list"
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readonly FTLLOG="/var/log/pihole-FTL.log"
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coltable=/opt/pihole/COL_TABLE
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# These provide the colors we need for making the log more readable
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if [[ -f ${coltable} ]]; then
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source ${coltable}
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else
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@ -47,7 +48,7 @@ else
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fi
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echo_succes_or_fail() {
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# Set the first argument passed to tihs function as a named variable for better readability
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# Set the first argument passed to this function as a named variable for better readability
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local message="${1}"
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# If the command was successful (a zero),
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if [[ $? -eq 0 ]]; then
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@ -102,80 +103,133 @@ if_directory_exists() {
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}
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check_core_version() {
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# Checks the core version of the Pi-hole codebase
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echo_current_diagnostic "Pi-hole Versions"
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# Store the error message in a variable in case we want to change and/or reuse it
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local error_msg="git status failed"
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# If the pihole git directory exists,
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if_directory_exists "${PIHOLEGITDIR}" && \
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# move into it
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cd "${PIHOLEGITDIR}" || \
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# if not, report an error
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echo -e "pihole repo does not exist" 2>&1 | tee -a "${DEBUG_LOG}"
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# If the git status command completes successfully,
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# we can assume we can get the information we want
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if git status &> /dev/null; then
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# The current version the user is on
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PI_HOLE_VERSION=$(git describe --tags --abbrev=0);
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# What branch they are on
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PI_HOLE_BRANCH=$(git rev-parse --abbrev-ref HEAD);
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# The commit they are on
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PI_HOLE_COMMIT=$(git describe --long --dirty --tags --always)
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# echo this information out to the user in a nice format
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echo -e " ${INFO} Core: ${PI_HOLE_VERSION}
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${INFO} Branch: ${PI_HOLE_BRANCH}
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${INFO} Commit: ${PI_HOLE_COMMIT}" 2>&1 | tee -a "${DEBUG_LOG}"
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# If git status failed,
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else
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# Return an error message
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echo -e "${error_msg}" 2>&1 | tee -a "${DEBUG_LOG}"
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# and exit with a non zero code
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return 1
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fi
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}
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check_web_version() {
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# Local variable for the error message
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local error_msg="git status failed"
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# If the directory exists,
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if_directory_exists "${ADMINGITDIR}" && \
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# move into it
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cd "${ADMINGITDIR}" || \
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# if not, give an error message
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echo -e "repo does not exist" 2>&1 | tee -a "${DEBUG_LOG}"
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# If the git status command completes successfully,
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# we can assume we can get the information we want
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if git status &> /dev/null; then
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# The current version the user is on
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WEB_VERSION=$(git describe --tags --abbrev=0);
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# What branch they are on
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WEB_BRANCH=$(git rev-parse --abbrev-ref HEAD);
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# The commit they are on
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WEB_COMMIT=$(git describe --long --dirty --tags --always)
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# echo this information out to the user in a nice format
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echo -e " ${INFO} Web: ${WEB_VERSION}
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${INFO} Branch: ${WEB_BRANCH}
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${INFO} Commit: ${WEB_COMMIT}" 2>&1 | tee -a "${DEBUG_LOG}"
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# If git status failed,
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else
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# Return an error message
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echo -e "${error_msg}" 2>&1 | tee -a "${DEBUG_LOG}"
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# and exit with a non zero code
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return 1
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fi
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}
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check_ftl_version() {
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# Use the built in command to check FTL's version
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FTL_VERSION=$(pihole-FTL version)
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# and display it to the user
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echo -e " ${INFO} FTL: ${FTL_VERSION}" 2>&1 | tee -a "${DEBUG_LOG}"
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}
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# Check the current version of the Web server
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check_web_server_version() {
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# Store the name in a variable in case we ever want to change it
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WEB_SERVER="lighttpd"
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# Parse out just the version number
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WEB_SERVER_VERSON="$(lighttpd -v |& head -n1 | cut -d '/' -f2 | cut -d ' ' -f1)"
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# Display the information to the user
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echo -e " ${INFO} ${WEB_SERVER}" 2>&1 | tee -a "${DEBUG_LOG}"
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# If the Web server does not have a version (the variable is empty)
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if [[ -z "${WEB_SERVER_VERSON}" ]]; then
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# Display and error
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echo -e " ${CROSS} ${WEB_SERVER} version could not be detected." 2>&1 | tee -a "${DEBUG_LOG}"
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# Otherwise,
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else
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# display the version
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echo -e " ${TICK} ${WEB_SERVER_VERSON}" 2>&1 | tee -a "${DEBUG_LOG}"
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fi
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}
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# Check the current version of the DNS server
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check_resolver_version() {
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# Store the name in a variable in case we ever want to change it
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RESOLVER="dnsmasq"
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# Parse out just the version number
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RESOVLER_VERSON="$(dnsmasq -v |& head -n1 | awk '{print $3}')"
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# Display the information to the user
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echo -e " ${INFO} ${RESOLVER}" 2>&1 | tee -a "${DEBUG_LOG}"
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# If the DNS server does not have a version (the variable is empty)
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if [[ -z "${RESOVLER_VERSON}" ]]; then
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# Display and error
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echo -e " ${CROSS} ${RESOLVER} version could not be detected." 2>&1 | tee -a "${DEBUG_LOG}"
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# Otherwise,
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else
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# display the version
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echo -e " ${TICK} ${RESOVLER_VERSON}" 2>&1 | tee -a "${DEBUG_LOG}"
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fi
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}
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check_php_version() {
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# Parse out just the version number
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PHP_VERSION=$(php -v |& head -n1 | cut -d '-' -f1 | cut -d ' ' -f2)
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# Display the info to the user
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echo -e " ${INFO} PHP" 2>&1 | tee -a "${DEBUG_LOG}"
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# If no version is detected,
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if [[ -z "${PHP_VERSION}" ]]; then
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# show an error
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echo -e " ${CROSS} PHP version could not be detected." 2>&1 | tee -a "${DEBUG_LOG}"
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# otherwise,
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else
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# Show the version
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echo -e " ${TICK} ${PHP_VERSION}" 2>&1 | tee -a "${DEBUG_LOG}"
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fi
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}
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# These are the most critical dependencies of Pi-hole, so we check for them
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# and their versions, using the functions above.
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check_critical_dependencies() {
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echo_current_diagnostic "Versions of critical dependencies"
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check_web_server_version
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@ -210,14 +264,16 @@ get_distro_attributes() {
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}
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diagnose_operating_system() {
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# local variable for system requirements
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local faq_url="https://discourse.pi-hole.net/t/hardware-software-requirements/273"
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# error message in a variable so we can easily modify it later (or re-use it)
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local error_msg="Distribution unknown -- most likely you are on an unsupported platform and may run into issues."
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# Display the current test that is running
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echo_current_diagnostic "Operating system"
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# If there is a /etc/*release file, it's probably a supported operating system, so we can
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file_exists /etc/*release && \
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# display the attributes to the user
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# display the attributes to the user from the function made earlier
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get_distro_attributes || \
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# If it doesn't exist, it's not a system we currently support and link to FAQ
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echo -e " ${CROSS} ${COL_LIGHT_RED}${error_msg}${COL_NC}
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@ -226,10 +282,15 @@ diagnose_operating_system() {
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processor_check() {
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echo_current_diagnostic "Processor"
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# Store the processor type in a variable
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PROCESSOR=$(uname -m)
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# If it does not contain a value,
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if [[ -z "${PROCESSOR}" ]]; then
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# we couldn't detect it, so show an error
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echo -e " ${CROSS} Processor could not be identified." 2>&1 | tee -a "${DEBUG_LOG}"
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# Otherwise,
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else
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# Show the processor type
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echo -e " ${INFO} ${PROCESSOR}" 2>&1 | tee -a "${DEBUG_LOG}"
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fi
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}
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@ -246,12 +307,16 @@ detect_ip_addresses() {
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if [[ -n ${ip_addr_list} ]]; then
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# Local iterator
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local i
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# Display the protocol and interface
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echo -e " ${TICK} IPv${protocol} on ${PIHOLE_INTERFACE}" 2>&1 | tee -a "${DEBUG_LOG}"
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# Since there may be more than one IP address, store them in an array
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for i in "${!ip_addr_list[@]}"; do
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# For each one in the list, print it out using the iterator as a numbered list
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echo -e " [$i] ${ip_addr_list[$i]}" 2>&1 | tee -a "${DEBUG_LOG}"
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done
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# Othwerwise explain that the protocol is not configured
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# Othwerwise,
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else
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# explain that the protocol is not configured
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echo -e " ${CROSS} No IPv${protocol} found on ${PIHOLE_INTERFACE}" 2>&1 | tee -a "${DEBUG_LOG}"
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return 1
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fi
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@ -302,6 +367,7 @@ ping_gateway() {
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}
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ping_internet() {
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# Give the first argument a readable name
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local protocol="${1}"
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# If the protocol is 6,
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if [[ ${protocol} == "6" ]]; then
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@ -317,30 +383,42 @@ ping_internet() {
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local public_address="8.8.8.8"
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fi
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echo -n " ${INFO} Trying three pings on IPv${protocol} to reach the Internet..." 2>&1 | tee -a "${DEBUG_LOG}"
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# Try to ping the address 3 times
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if ! ping_inet="$(${cmd} -q -W 3 -c 3 -n ${public_address} -I ${PIHOLE_INTERFACE} | tail -n 3)"; then
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# if it's unsuccessful, show an error
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echo -e " ${CROSS} Cannot reach the Internet" 2>&1 | tee -a "${DEBUG_LOG}"
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return 1
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# Otherwise,
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else
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# show success
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echo -e " ${TICK} Query responded." 2>&1 | tee -a "${DEBUG_LOG}"
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return 0
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fi
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}
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check_required_ports() {
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# Since Pi-hole needs 53, 80, and 4711, check what they are being used by
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# so we can detect any issues
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echo -e " ${INFO} Ports in use:" 2>&1 | tee -a "${DEBUG_LOG}"
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# Create an array for these ports in use
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ports_in_use=()
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# Sort the addresses and remove duplicates
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while IFS= read -r line; do
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ports_in_use+=( "$line" )
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done < <( lsof -i -P -n | awk -F' ' '/LISTEN/ {print $9, $1}' | sort | uniq | cut -d':' -f2 )
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# Now that we have the values stored,
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for i in ${!ports_in_use[@]}; do
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local port_number="$(echo "${ports_in_use[$i]}" | awk '{print $1}')"
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local service_name=$(echo "${ports_in_use[$i]}" | awk '{print $2}')
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# display the information nicely to the user
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echo -e " [${port_number}] is in use by ${service_name}" 2>&1 | tee -a "${DEBUG_LOG}"
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done
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}
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check_networking() {
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# Runs through several of the functions made earlier; we just clump them
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# together since they are all related to the networking aspect of things
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echo_current_diagnostic "Networking"
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detect_ip_addresses "4"
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ping_gateway "4"
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@ -350,17 +428,27 @@ check_networking() {
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}
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check_x_headers() {
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# The X-Headers allow us to determine from the command line if the Web
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# server is operating correctly
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echo_current_diagnostic "Dashboard and block page"
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# Use curl -I to get the header and parse out just the X-Pi-hole one
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local block_page=$(curl -Is localhost | awk '/X-Pi-hole/' | tr -d '\r')
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# Do it for the dashboard as well, as the header is different than above
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local dashboard=$(curl -Is localhost/admin/ | awk '/X-Pi-hole/' | tr -d '\r')
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# Store what the X-Header shoud be in variables for comparision later
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local block_page_working="X-Pi-hole: A black hole for Internet advertisements."
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local dashboard_working="X-Pi-hole: The Pi-hole Web interface is working!"
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# If the X-header found by curl matches what is should be,
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if [[ $block_page == $block_page_working ]]; then
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# display a success message
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echo -e " $TICK ${block_page}" 2>&1 | tee -a "${DEBUG_LOG}"
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# Otherwise,
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else
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# show an error
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echo -e " $CROSS X-Header does not match or could not be retrieved" 2>&1 | tee -a "${DEBUG_LOG}"
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fi
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# Same logic applies to the dashbord as above
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if [[ $dashboard == $dashboard_working ]]; then
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echo -e " $TICK ${dashboard}" 2>&1 | tee -a "${DEBUG_LOG}"
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else
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@ -369,20 +457,29 @@ check_x_headers() {
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}
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dig_at() {
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# We need to test if Pi-hole can properly resolve domain names as it is an
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# essential piece of the software that needs to work
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# Store the arguments as variables with names
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local protocol="${1}"
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local IP="${2}"
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echo_current_diagnostic "Domain name resolution (IPv${protocol}) using a random blocked domain"
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# Set more local variables
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local url
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local local_dig
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local pihole_dig
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local remote_dig
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# If the protocol (4 or 6) is 6,
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if [[ ${protocol} == "6" ]]; then
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# Set the IPv6 variables and record type
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local local_address="::1"
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local pihole_address="${IPV6_ADDRESS%/*}"
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local remote_address="2001:4860:4860::8888"
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local record_type="AAAA"
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# Othwerwise, it should be 4
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else
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# so use the IPv4 values
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local local_address="127.0.0.1"
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local pihole_address="${IPV4_ADDRESS%/*}"
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local remote_address="8.8.8.8"
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@ -392,33 +489,45 @@ dig_at() {
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# Find a random blocked url that has not been whitelisted.
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local random_url=$(shuf -n 1 "${GRAVITYFILE}" | awk -F ' ' '{ print $2 }')
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local remote_url="doubleclick.com"
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# First do a dig on localhost, to see if Pi-hole can use itself to block a domain
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if local_dig=$(dig -"${protocol}" "${random_url}" @${local_address} +short "${record_type}"); then
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# If it can, show sucess
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echo -e " ${TICK} ${random_url} is ${local_dig} via localhost (${local_address})" 2>&1 | tee -a "${DEBUG_LOG}"
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# Otherwise,
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else
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# show a failure
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echo -e " ${CROSS} Failed to resolve ${random_url} via localhot (${local_address})" 2>&1 | tee -a "${DEBUG_LOG}"
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fi
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# Next we need to check if Pi-hole can resolve a domain when the query is sent to it's IP address
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# This better emulates how clients will interact with Pi-hole as opposed to above where Pi-hole is
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# just asing itself locally
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if pihole_dig=$(dig -"${protocol}" "${random_url}" @${pihole_address} +short "${record_type}"); then
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echo -e " ${TICK} ${random_url} is ${pihole_dig} via Pi-hole (${pihole_address})" 2>&1 | tee -a "${DEBUG_LOG}"
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else
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echo -e " ${CROSS} Failed to resolve ${random_url} via Pi-hole (${pihole_address})" 2>&1 | tee -a "${DEBUG_LOG}"
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fi
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# Finally, we need to make sure legitimate sites can out if using an external, public DNS server
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if remote_dig=$(dig -"${protocol}" "${remote_url}" @${remote_address} +short "${record_type}" | head -n1); then
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# If successful, the real IP of the domain will be returned instead of Pi-hole's IP
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echo -e " ${TICK} ${random_url} is ${remote_dig} via a remote, public DNS server (${remote_address})" 2>&1 | tee -a "${DEBUG_LOG}"
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else
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echo -e " ${CROSS} Failed to resolve ${remote_url} via a remote, public DNS server (${remote_address})" 2>&1 | tee -a "${DEBUG_LOG}"
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echo -e " ${CROSS} Failed to resolve ${random_url} via a remote, public DNS server (${remote_address})" 2>&1 | tee -a "${DEBUG_LOG}"
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fi
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}
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process_status(){
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# Check to make sure Pi-hole's services are running and active
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echo_current_diagnostic "Pi-hole processes"
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# Store them in an array for easy use
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PROCESSES=( dnsmasq lighttpd pihole-FTL )
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local i
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# For each process,
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for i in "${PROCESSES[@]}"; do
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# get it's status
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local status_of_process=$(systemctl is-active "${i}")
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# and print it out to the user
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echo -e " [i] ${i} daemon is ${status_of_process}" 2>&1 | tee -a "${DEBUG_LOG}"
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done
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}
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@ -461,6 +570,7 @@ diagnose_setup_variables() {
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check_name_resolution() {
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# Check name resoltion from localhost, Pi-hole's IP, and Google's name severs
|
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# using the function we created earlier
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dig_at 4 "${IPV4_ADDRESS%/*}"
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# If IPv6 enabled, check resolution
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if [[ "${IPV6_ADDRESS}" ]]; then
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@ -537,16 +647,24 @@ check_http_directory() {
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}
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analyze_gravity_list() {
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# It's helpful to know how big a user's gravity file is
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gravity_length=$(grep -c ^ "${GRAVITYFILE}") && \
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echo -e " ${INFO} ${GRAVITYFILE} is ${gravity_length} lines long." 2>&1 | tee -a "${DEBUG_LOG}" || \
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# If the previous command failed, something is wrong with the file
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echo -e " ${CROSS} ${GRAVITYFILE} not found!" 2>&1 | tee -a "${DEBUG_LOG}"
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}
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tricorder_nc_or_ssl() {
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# Users can submit their debug logs using nc (unencrypted) or opensll (enrypted) if available
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# Check fist for openssl since encryption is a good thing
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if command -v openssl &> /dev/null; then
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# If successful
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echo -e " ${INFO} Using openssl for transmission." 2>&1 | tee -a "${DEBUG_LOG}"
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# transmit the log and store the token returned in the tricorder variable
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tricorder=$(cat /var/log/pihole_debug.log | openssl s_client -quiet -connect tricorder.pi-hole.net:9998 2> /dev/null)
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# Otherwise,
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else
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# use net cat
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echo -e " ${INFO} Using netcat for transmission." 2>&1 | tee -a "${DEBUG_LOG}"
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tricorder=$(cat /var/log/pihole_debug.log | nc tricorder.pi-hole.net 9999)
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fi
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@ -558,13 +676,18 @@ upload_to_tricorder() {
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chmod 644 ${DEBUG_LOG}
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chown "$USER":pihole ${DEBUG_LOG}
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||||
# Let the user know debugging is complete
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||||
echo ""
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echo -e "${TICK} Finshed debugging!" 2>&1 | tee -a "${DEBUG_LOG}"
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||||
|
||||
# Provide information on what they should do with their token
|
||||
echo -e " ${INFO} The debug log can be uploaded to tricorder.pi-hole.net for sharing with developers only."
|
||||
echo -e " For more information, see: https://pi-hole.net/2016/11/07/crack-our-medical-tricorder-win-a-raspberry-pi-3/"
|
||||
# If pihole -d is running automatically (usually throught the dashboard)
|
||||
if [[ "${AUTOMATED}" ]]; then
|
||||
# let the user know
|
||||
echo -e " ${INFO} Debug script running in automated mode" 2>&1 | tee -a "${DEBUG_LOG}"
|
||||
# and then decide again which tool to use to submit it
|
||||
if command -v openssl &> /dev/null; then
|
||||
echo -e " ${INFO} Using openssl for transmission." 2>&1 | tee -a "${DEBUG_LOG}"
|
||||
openssl s_client -quiet -connect tricorder.pi-hole.net:9998 2> /dev/null < /dev/stdin
|
||||
@ -574,13 +697,18 @@ upload_to_tricorder() {
|
||||
fi
|
||||
else
|
||||
echo ""
|
||||
# Give the user a choice of uploading it or not
|
||||
# Users can review the log file locally and try to self-diagnose their problem
|
||||
read -r -p "[?] Would you like to upload the log? [y/N] " response
|
||||
case ${response} in
|
||||
# If they say yes, run our function for uploading the log
|
||||
[yY][eE][sS]|[yY]) tricorder_nc_or_ssl;;
|
||||
# If they choose no, just exit out of the script
|
||||
*) echo -e " ${INFO} Log will NOT be uploaded to tricorder.";exit;
|
||||
esac
|
||||
fi
|
||||
# Check if tricorder.pi-hole.net is reachable and provide token.
|
||||
# Check if tricorder.pi-hole.net is reachable and provide token
|
||||
# along with some additional useful information
|
||||
if [[ -n "${tricorder}" ]]; then
|
||||
echo ""
|
||||
echo -e "${COL_LIGHT_PURPLE}***********************************${COL_NC}"
|
||||
@ -599,10 +727,13 @@ upload_to_tricorder() {
|
||||
echo ""
|
||||
}
|
||||
|
||||
# Run through all the functions we made
|
||||
initiate_debug
|
||||
check_core_version
|
||||
check_web_version
|
||||
check_ftl_version
|
||||
# setupVars.conf needs to be sourced before the networking so the values are
|
||||
# available to the check_networking function
|
||||
diagnose_setup_variables
|
||||
diagnose_operating_system
|
||||
processor_check
|
||||
|
||||
Loading…
Reference in New Issue
Block a user