mirror of
https://github.com/pi-hole/pi-hole
synced 2024-12-23 07:18:07 +00:00
Tweak/debug improvements (#1585)
* check for CIDR notation when comparing IPv6 address to that found in setupVars.conf * highlight bad address entries in pihole.log and reference a corresponding FAQ * show header output if Pi-holes x-header does not match * fix automated mode when running from the dashboard. It would previously not automatically upload and generate a token. * show disclaimer message * undocumented feature for now: obfuscate domains in pihole.log so they are not visible when sent to the Pi-hole developers. We need to make an additonal flag for this in the pihole command. if the variable OBFUSCATE has a value, it will replace the domain in the log with a placeholder value * fix small typo in the disclaimer
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@ -39,6 +39,8 @@ else
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OVER="\r\033[K"
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OVER="\r\033[K"
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fi
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fi
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OBFUSCATED_PLACEHOLDER="<DOMAIN OBFUSCATED>"
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# FAQ URLs for use in showing the debug log
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# FAQ URLs for use in showing the debug log
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FAQ_UPDATE_PI_HOLE="${COL_CYAN}https://discourse.pi-hole.net/t/how-do-i-update-pi-hole/249${COL_NC}"
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FAQ_UPDATE_PI_HOLE="${COL_CYAN}https://discourse.pi-hole.net/t/how-do-i-update-pi-hole/249${COL_NC}"
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FAQ_CHECKOUT_COMMAND="${COL_CYAN}https://discourse.pi-hole.net/t/the-pihole-command-with-examples/738#checkout${COL_NC}"
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FAQ_CHECKOUT_COMMAND="${COL_CYAN}https://discourse.pi-hole.net/t/the-pihole-command-with-examples/738#checkout${COL_NC}"
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@ -47,6 +49,7 @@ FAQ_HARDWARE_REQUIREMENTS_PORTS="${COL_CYAN}https://discourse.pi-hole.net/t/hard
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FAQ_GATEWAY="${COL_CYAN}https://discourse.pi-hole.net/t/why-is-a-default-gateway-important-for-pi-hole/3546${COL_NC}"
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FAQ_GATEWAY="${COL_CYAN}https://discourse.pi-hole.net/t/why-is-a-default-gateway-important-for-pi-hole/3546${COL_NC}"
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FAQ_ULA="${COL_CYAN}https://discourse.pi-hole.net/t/use-ipv6-ula-addresses-for-pi-hole/2127${COL_NC}"
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FAQ_ULA="${COL_CYAN}https://discourse.pi-hole.net/t/use-ipv6-ula-addresses-for-pi-hole/2127${COL_NC}"
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FAQ_FTL_COMPATIBILITY="${COL_CYAN}https://github.com/pi-hole/FTL#compatibility-list${COL_NC}"
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FAQ_FTL_COMPATIBILITY="${COL_CYAN}https://github.com/pi-hole/FTL#compatibility-list${COL_NC}"
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FAQ_BAD_ADDRESS="${COL_CYAN}https://discourse.pi-hole.net/t/why-do-i-see-bad-address-at-in-pihole-log/3972${COL_NC}"
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# Other URLs we may use
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# Other URLs we may use
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FORUMS_URL="${COL_CYAN}https://discourse.pi-hole.net${COL_NC}"
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FORUMS_URL="${COL_CYAN}https://discourse.pi-hole.net${COL_NC}"
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@ -159,6 +162,17 @@ ${PIHOLE_FTL_LOG}
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${PIHOLE_WEB_SERVER_ACCESS_LOG_FILE}
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${PIHOLE_WEB_SERVER_ACCESS_LOG_FILE}
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${PIHOLE_WEB_SERVER_ERROR_LOG_FILE})
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${PIHOLE_WEB_SERVER_ERROR_LOG_FILE})
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DISCLAIMER="This process collects information from your Pi-hole, and optionally uploads it to a unique and random directory on tricorder.pi-hole.net.
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The intent of this script is to allow users to self-diagnose their installations. This is accomplished by running tests against our software and providing the user with links to FAQ articles when a problem is detected. Since we are a small team and Pi-hole has been growing steadily, it is our hope that this will help us spend more time on development.
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NOTE: All log files auto-delete after 48 hours and ONLY the Pi-hole developers can access your data via the given token. We have taken these extra steps to secure your data and will work to further reduce any personal information gathered.
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"
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show_disclaimer(){
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log_write "${DISCLAIMER}"
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}
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source_setup_variables() {
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source_setup_variables() {
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# Display the current test that is running
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# Display the current test that is running
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log_write "\n${COL_LIGHT_PURPLE}*** [ INITIALIZING ]${COL_NC} Sourcing setup variables"
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log_write "\n${COL_LIGHT_PURPLE}*** [ INITIALIZING ]${COL_NC} Sourcing setup variables"
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@ -203,6 +217,7 @@ copy_to_debug_log() {
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initiate_debug() {
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initiate_debug() {
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# Clear the screen so the debug log is readable
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# Clear the screen so the debug log is readable
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clear
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clear
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show_disclaimer
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# Display that the debug process is beginning
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# Display that the debug process is beginning
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log_write "${COL_LIGHT_PURPLE}*** [ INITIALIZING ]${COL_NC}"
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log_write "${COL_LIGHT_PURPLE}*** [ INITIALIZING ]${COL_NC}"
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# Timestamp the start of the log
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# Timestamp the start of the log
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@ -457,7 +472,7 @@ does_ip_match_setup_vars() {
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# If it's an IPv6 address
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# If it's an IPv6 address
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if [[ "${protocol}" == "6" ]]; then
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if [[ "${protocol}" == "6" ]]; then
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# Strip off the / (CIDR notation)
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# Strip off the / (CIDR notation)
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if [[ "${ip_address%/*}" == "${setup_vars_ip}" ]]; then
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if [[ "${ip_address%/*}" == "${setup_vars_ip%/*}" ]]; then
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# if it matches, show it in green
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# if it matches, show it in green
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log_write " ${COL_LIGHT_GREEN}${ip_address%/*}${COL_NC} matches the IP found in ${PIHOLE_SETUP_VARS_FILE}"
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log_write " ${COL_LIGHT_GREEN}${ip_address%/*}${COL_NC} matches the IP found in ${PIHOLE_SETUP_VARS_FILE}"
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else
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else
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@ -659,6 +674,10 @@ check_x_headers() {
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block_page_working="X-Pi-hole: A black hole for Internet advertisements."
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block_page_working="X-Pi-hole: A black hole for Internet advertisements."
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local dashboard_working
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local dashboard_working
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dashboard_working="X-Pi-hole: The Pi-hole Web interface is working!"
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dashboard_working="X-Pi-hole: The Pi-hole Web interface is working!"
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local full_curl_output_block_page
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full_curl_output_block_page="$(curl -Is localhost)"
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local full_curl_output_dashboard
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full_curl_output_dashboard="$(curl -Is localhost/admin/)"
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# If the X-header found by curl matches what is should be,
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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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if [[ $block_page == "$block_page_working" ]]; then
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# display a success message
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# display a success message
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@ -666,6 +685,7 @@ check_x_headers() {
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else
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else
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# Otherwise, show an error
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# Otherwise, show an error
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log_write "$CROSS ${COL_LIGHT_RED}X-Header does not match or could not be retrieved.${COL_NC}"
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log_write "$CROSS ${COL_LIGHT_RED}X-Header does not match or could not be retrieved.${COL_NC}"
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log_write "${COL_LIGHT_RED}${full_curl_output_block_page}${COL_NC}"
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fi
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fi
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# Same logic applies to the dashbord as above, if the X-Header matches what a working system shoud have,
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# Same logic applies to the dashbord as above, if the X-Header matches what a working system shoud have,
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@ -675,6 +695,7 @@ check_x_headers() {
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else
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else
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# Othewise, it's a failure since the X-Headers either don't exist or have been modified in some way
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# Othewise, it's a failure since the X-Headers either don't exist or have been modified in some way
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log_write "$CROSS ${COL_LIGHT_RED}X-Header does not match or could not be retrieved.${COL_NC}"
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log_write "$CROSS ${COL_LIGHT_RED}X-Header does not match or could not be retrieved.${COL_NC}"
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log_write "${COL_LIGHT_RED}${full_curl_output_dashboard}${COL_NC}"
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fi
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fi
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}
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}
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@ -972,8 +993,39 @@ analyze_pihole_log() {
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local pihole_log_head=()
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local pihole_log_head=()
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pihole_log_head=( $(head -n 20 ${PIHOLE_LOG}) )
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pihole_log_head=( $(head -n 20 ${PIHOLE_LOG}) )
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log_write " ${COL_CYAN}-----head of $(basename ${PIHOLE_LOG})------${COL_NC}"
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log_write " ${COL_CYAN}-----head of $(basename ${PIHOLE_LOG})------${COL_NC}"
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local error_to_check_for
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local line_to_obfuscate
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local obfuscated_line
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for head_line in "${pihole_log_head[@]}"; do
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for head_line in "${pihole_log_head[@]}"; do
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# A common error in the pihole.log is when there is a non-hosts formatted file
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# that the DNS server is attempting to read. Since it's not formatted
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# correctly, there will be an entry for "bad address at line n"
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# So we can check for that here and highlight it in red so the user can see it easily
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error_to_check_for=$(echo ${head_line} | grep 'bad address at')
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# Some users may not want to have the domains they visit sent to us
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# To that end, we check for lines in the log that would contain a domain name
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line_to_obfuscate=$(echo ${head_line} | grep ': query\|: forwarded\|: reply')
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# If the variable contains a value, it found an error in the log
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if [[ -n ${error_to_check_for} ]]; then
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# So we can print it in red to make it visible to the user
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log_write " ${CROSS} ${COL_LIGHT_RED}${head_line}${COL_NC} (${FAQ_BAD_ADDRESS})"
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else
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# If the variable does not a value (the current default behavior), so do not obfuscate anything
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if [[ -z ${OBFUSCATE} ]]; then
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log_write " ${head_line}"
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log_write " ${head_line}"
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# Othwerise, a flag was passed to this command to obfuscate domains in the log
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else
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# So first check if there are domains in the log that should be obfuscated
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if [[ -n ${line_to_obfuscate} ]]; then
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# If there are, we need to use awk to replace only the domain name (the 6th field in the log)
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# so we substitue the domain for the placeholder value
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obfuscated_line=$(echo ${line_to_obfuscate} | awk -v placeholder="${OBFUSCATED_PLACEHOLDER}" '{sub($6,placeholder); print $0}')
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log_write " ${obfuscated_line}"
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else
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log_write " ${head_line}"
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fi
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fi
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fi
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done
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done
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log_write ""
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log_write ""
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# Set the IFS back to what it was
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# Set the IFS back to what it was
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@ -1019,17 +1071,7 @@ upload_to_tricorder() {
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# let the user know
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# let the user know
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log_write "${INFO} Debug script running in automated mode"
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log_write "${INFO} Debug script running in automated mode"
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# and then decide again which tool to use to submit it
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# and then decide again which tool to use to submit it
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if command -v openssl &> /dev/null; then
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tricorder_use_nc_or_ssl
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# If openssl is available, use it
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log_write "${INFO} Using ${COL_LIGHT_GREEN}openssl${COL_NC} for transmission."
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# Save the token returned by our server in a variable
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tricorder_token=$(openssl s_client -quiet -connect tricorder.pi-hole.net:${TRICORDER_SSL_PORT_NUMBER} 2> /dev/null < /dev/stdin)
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else
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# Otherwise, fallback to netcat
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log_write "${INFO} Using ${COL_YELLOW}netcat${COL_NC} for transmission."
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# Save the token returned by our server in a variable
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tricorder_token=$(nc tricorder.pi-hole.net ${TRICORDER_NC_PORT_NUMBER} < /dev/stdin)
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fi
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# If we're not running in automated mode,
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# If we're not running in automated mode,
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else
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else
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echo ""
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echo ""
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