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https://github.com/pi-hole/pi-hole
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Hotfix Core v5.16.2 (#5235)
This commit is contained in:
Dan Schaper
GitHub
commit
d885e92674
94
gravity.sh
94
gravity.sh
@ -546,15 +546,6 @@ abp_domains=0
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parseList() {
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local adlistID="${1}" src="${2}" target="${3}" temp_file temp_file_base non_domains sample_non_domains valid_domain_pattern abp_domain_pattern
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# Create a temporary file for the sed magic instead of using "${target}" directly
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# this allows to split the sed commands to improve readability
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# we use a file handle here and remove the temporary file immediately so the content will be deleted in any case
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# when the script stops
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temp_file_base="$(mktemp -p "/tmp" --suffix=".gravity")"
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exec 3>"$temp_file_base"
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rm "${temp_file_base}"
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temp_file="/proc/$$/fd/3"
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# define valid domain patterns
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# no need to include uppercase letters, as we convert to lowercase in gravity_ParseFileIntoDomains() already
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# adapted from https://stackoverflow.com/a/30007882
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@ -563,62 +554,39 @@ parseList() {
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valid_domain_pattern="([a-z0-9]([a-z0-9_-]{0,61}[a-z0-9]){0,1}\.)+[a-z0-9][a-z0-9-]{0,61}[a-z0-9]"
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abp_domain_pattern="\|\|${valid_domain_pattern}\^"
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# 1. Add all valid domains
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sed -r "/^${valid_domain_pattern}$/!d" "${src}" > "${temp_file}"
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# 2. Add valid ABP style domains if there is at least one such domain
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if grep -E "^${abp_domain_pattern}$" -m 1 -q "${src}"; then
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echo " ${INFO} List contained AdBlock Plus style domains"
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abp_domains=1
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sed -r "/^${abp_domain_pattern}$/!d" "${src}" >> "${temp_file}"
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fi
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# Find lines containing no domains or with invalid characters (not matching regex above)
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# This is simply everything that is not in $temp_file compared to $src
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# Remove duplicates from the list
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mapfile -t non_domains < <(grep -Fvf "${temp_file}" "${src}" | sort -u )
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# 3. Remove trailing period (see https://github.com/pi-hole/pi-hole/issues/4701)
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# 4. Append ,adlistID to every line
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# 5. Ensures there is a newline on the last line
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# and write everything to the target file
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sed "s/\.$//;s/$/,${adlistID}/;/.$/a\\" "${temp_file}" >> "${target}"
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# A list of items of common local hostnames not to report as unusable
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# Some lists (i.e StevenBlack's) contain these as they are supposed to be used as HOST files
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# but flagging them as unusable causes more confusion than it's worth - so we suppress them from the output
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false_positives="localhost|localhost.localdomain|local|broadcasthost|localhost|ip6-localhost|ip6-loopback|lo0 localhost|ip6-localnet|ip6-mcastprefix|ip6-allnodes|ip6-allrouters|ip6-allhosts"
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# if there are any non-domains, filter the array for false-positives
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# Credit: https://stackoverflow.com/a/40264051
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if [[ "${#non_domains[@]}" -gt 0 ]]; then
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mapfile -d $'\0' -t non_domains < <(printf '%s\0' "${non_domains[@]}" | grep -Ezv "^${false_positives}")
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# Extract valid domains from source file and append ,${adlistID} to each line and save count to variable for display.
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num_domains=$(grep -E "^(${valid_domain_pattern}|${abp_domain_pattern})$" "${src}" | tee >(sed "s/$/,${adlistID}/" >> "${target}") | wc -l)
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# Check if the source file contained AdBlock Plus style domains, if so we set the global variable and inform the user
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if grep -E "^${abp_domain_pattern}$" -m 1 -q "${src}"; then
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echo " ${INFO} List contained AdBlock Plus style domains"
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abp_domains=1
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fi
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# Get a sample of non-domain entries, limited to 5 (the list should already have been de-duplicated)
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IFS=" " read -r -a sample_non_domains <<< "$(tr ' ' '\n' <<< "${non_domains[@]}" | head -n 5 | tr '\n' ' ')"
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# For completeness, we will get a count of non_domains (this is the number of entries left after stripping the source of comments/duplicates/false positives/domains)
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invalid_domains="$(mktemp -p "${GRAVITY_TMPDIR}" --suffix=".ph-non-domains")"
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# Get the number of domains added
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num_domains="$(grep -c "^" "${temp_file}")"
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# Get the number of non_domains (this is the number of entries left after stripping the source of comments/duplicates/false positives/domains)
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num_non_domains="${#non_domains[@]}"
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num_non_domains=$(grep -Ev "^(${valid_domain_pattern}|${abp_domain_pattern}|${false_positives})$" "${src}" | tee "${invalid_domains}" | wc -l)
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# If there are unusable lines, we display some information about them. This is not error or major cause for concern.
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if [[ "${num_non_domains}" -ne 0 ]]; then
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echo " ${INFO} Imported ${num_domains} domains, ignoring ${num_non_domains} non-domain entries"
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type="domains"
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if [[ "${abp_domains}" -ne 0 ]]; then
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type="patterns"
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fi
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echo " ${INFO} Imported ${num_domains} ${type}, ignoring ${num_non_domains} non-domain entries"
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echo " Sample of non-domain entries:"
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for each in "${sample_non_domains[@]}"
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do
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echo " - ${each}"
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done
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invalid_lines=$(head -n 5 "${invalid_domains}")
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echo "${invalid_lines}" | awk '{print " - " $0}'
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else
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echo " ${INFO} Imported ${num_domains} domains"
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fi
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# close file handle
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exec 3<&-
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rm "${invalid_domains}"
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}
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compareLists() {
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@ -648,10 +616,10 @@ compareLists() {
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# Download specified URL and perform checks on HTTP status and file content
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gravity_DownloadBlocklistFromUrl() {
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local url="${1}" cmd_ext="${2}" agent="${3}" adlistID="${4}" saveLocation="${5}" target="${6}" compression="${7}"
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local heisenbergCompensator="" patternBuffer str httpCode success="" ip
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local heisenbergCompensator="" listCurlBuffer str httpCode success="" ip
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# Create temp file to store content on disk instead of RAM
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patternBuffer=$(mktemp -p "${GRAVITY_TMPDIR}" --suffix=".phgpb")
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listCurlBuffer=$(mktemp -p "${GRAVITY_TMPDIR}" --suffix=".phgpb")
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# Determine if $saveLocation has read permission
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if [[ -r "${saveLocation}" && $url != "file"* ]]; then
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@ -705,12 +673,12 @@ gravity_DownloadBlocklistFromUrl() {
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fi
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# shellcheck disable=SC2086
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httpCode=$(curl --connect-timeout ${curl_connect_timeout} -s -L ${compression} ${cmd_ext} ${heisenbergCompensator} -w "%{http_code}" -A "${agent}" "${url}" -o "${patternBuffer}" 2> /dev/null)
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httpCode=$(curl --connect-timeout ${curl_connect_timeout} -s -L ${compression} ${cmd_ext} ${heisenbergCompensator} -w "%{http_code}" -A "${agent}" "${url}" -o "${listCurlBuffer}" 2> /dev/null)
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case $url in
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# Did we "download" a local file?
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"file"*)
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if [[ -s "${patternBuffer}" ]]; then
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if [[ -s "${listCurlBuffer}" ]]; then
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echo -e "${OVER} ${TICK} ${str} Retrieval successful"; success=true
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else
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echo -e "${OVER} ${CROSS} ${str} Not found / empty list"
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@ -743,10 +711,12 @@ gravity_DownloadBlocklistFromUrl() {
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database_adlist_status "${adlistID}" "2"
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database_adlist_number "${adlistID}"
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done="true"
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# Check if $patternbuffer is a non-zero length file
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elif [[ -s "${patternBuffer}" ]]; then
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# Check if $listCurlBuffer is a non-zero length file
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elif [[ -s "${listCurlBuffer}" ]]; then
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# Determine if blocklist is non-standard and parse as appropriate
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gravity_ParseFileIntoDomains "${patternBuffer}" "${saveLocation}"
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gravity_ParseFileIntoDomains "${listCurlBuffer}" "${saveLocation}"
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# Remove curl buffer file after its use
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rm "${listCurlBuffer}"
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# Add domains to database table file
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parseList "${adlistID}" "${saveLocation}" "${target}"
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# Compare lists, are they identical?
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@ -756,7 +726,7 @@ gravity_DownloadBlocklistFromUrl() {
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database_adlist_number "${adlistID}"
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done="true"
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else
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# Fall back to previously cached list if $patternBuffer is empty
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# Fall back to previously cached list if $listCurlBuffer is empty
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echo -e " ${INFO} Received empty file"
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fi
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fi
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@ -868,7 +838,10 @@ gravity_Cleanup() {
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# Delete tmp content generated by Gravity
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rm ${piholeDir}/pihole.*.txt 2> /dev/null
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rm ${piholeDir}/*.tmp 2> /dev/null
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# listCurlBuffer location
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rm "${GRAVITY_TMPDIR}"/*.phgpb 2> /dev/null
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# invalid_domains location
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rm "${GRAVITY_TMPDIR}"/*.ph-non-domains 2> /dev/null
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# Ensure this function only runs when gravity_SetDownloadOptions() has completed
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if [[ "${gravity_Blackbody:-}" == true ]]; then
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@ -1031,7 +1004,10 @@ if ! gravity_CheckDNSResolutionAvailable; then
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exit 1
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fi
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gravity_DownloadBlocklists
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if ! gravity_DownloadBlocklists; then
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echo -e " ${CROSS} Unable to create gravity database. Please try again later. If the problem persists, please contact support."
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exit 1
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fi
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# Create local.list
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gravity_generateLocalList
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