tldinfo shell script
This commit is contained in:
Doug Bird
parent
cf6016294f
commit
6f0d3cb494
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@ -0,0 +1,547 @@
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#!/bin/sh
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#
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# Provides information on IANA top-level domains
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#
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# For usage, execute with the "--help" option
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#
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# @author D. Bird <retran@gmail.com>
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#
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#
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# script localization
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#
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ME_NAME=$(basename $0)
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ME_DIR="/$0"; ME_DIR=${ME_DIR%/*}; ME_DIR=${ME_DIR:-.}; ME_DIR=${ME_DIR#/}/; ME_DIR=$(cd "$ME_DIR"; pwd)
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ME_SHORTNAME='tldinfo'
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#
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# number of seconds before warning about needing an update
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# 2592000 seconds = 30 days
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#
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CHECKED_TIME_TTL=2592000
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#
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# data root dir
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#
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SYS_DATA_ROOT=/usr/share/$ME_SHORTNAME
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USER_DATA_ROOT=~/.$ME_SHORTNAME
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SYS_INSTALL_PATH=/usr/bin/$ME_SHORTNAME
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#
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# parse options
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#
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OPTION_STATUS=0
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HELP_MODE=0
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FORCE_PHP=0
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SKIP_PHP=0
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SKIP_CSV=0
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UPDATE_MODE=0
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SHOW_DESC=0
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SHOW_TYPE=0
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STARTS_WITH=0
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INSTALL_MODE=0
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while getopts :?qhuaV-: arg; do { case $arg in
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h|u|a|V) HELP_MODE=1;;
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-) LONG_OPTARG="${OPTARG#*=}"; case $OPTARG in
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help|usage|about|version) HELP_MODE=1;;
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update) UPDATE_MODE=1;;
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show-description) SHOW_DESC=1;;
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show-type) SHOW_TYPE=1;;
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starts-with) STARTS_WITH=1;;
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install) INSTALL_MODE=1;;
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*) >&2 echo "$ME_NAME: unrecognized long option --$OPTARG"; OPTION_STATUS=2;;
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esac ;;
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*) >&2 echo "$ME_NAME: unrecognized option -$OPTARG"; OPTION_STATUS=2;;
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esac } done
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shift $((OPTIND-1)) # remove parsed options and args from $@ list
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[ "$OPTION_STATUS" != "0" ] && { >&2 echo "$ME_NAME: (FATAL) one or more invalid options"; exit $OPTION_STATUS; }
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[ "$UPDATE_MODE" != 1 ] && [ -n "$1" ] && { SEARCH=$1; shift; }
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[ -z "$@" ] || { >&2 echo "$ME_NAME: (FATAL) one or more unrecognized positional arguments ($@)"; exit 2; }
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[ "$STARTS_WITH" = 1 ] && [ -z "$SEARCH" ] && { >&2 echo "$ME_NAME: (FATAL) must specify <SEARCH> argument when using --starts-with option"; exit 2; }
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#
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# apply help mode
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#
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if [ "$HELP_MODE" = "1" ]; then
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echo "tldinfo"
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echo "(c) 2017-2018 Doug Bird, All Rights Reserved."
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echo "https://github.com/katmore/tld-enum#readme"
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echo ""
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echo "Prints IANA top-level domains."
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echo ""
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echo "usage:"
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echo " $ME_NAME [-h][--update]|[display options...][[--starts-with] <SEARCH>]"
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echo ""
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echo "-h,--help: Print a help message and exit."
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echo "--update: Update TLD database as needed and exit."
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echo "--install: Install a global 'tldinfo' binary and exit."
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echo ""
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echo "display options:"
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echo "--show-description: Always print domain description."
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echo "--show-type: Always print domain type."
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echo ""
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echo "<SEARCH>:"
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echo " Optionally, only print matching domain(s)."
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echo " --starts-with: Match domain(s) starting with <SEARCH>."
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echo ""
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echo "Exit Codes:"
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echo " 0 : Success"
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echo " 1 : General Error"
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echo " 3 : Internal Error"
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echo " 20 : No match found for <SEARCH>"
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exit 0
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fi
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#
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# dependency checks
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#
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USE_CURL=0; USE_WGET=0; FOUND_HTTP_CLIENT=0
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curl -V > /dev/null 2>&1 && {
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USE_CURL=1; FOUND_HTTP_CLIENT=1
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} || {
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wget -V > /dev/null 2>&1 && {
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USE_WGET=1; FOUND_HTTP_CLIENT=1
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} }
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#
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# Prints the url an http request ultimately redirects to.
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# Usage:
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# print_http_redirect <url>
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# Arguments:
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# <url>
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# The request url
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# (Required)
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#
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print_http_redirect() { url=$1
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if [ "$FOUND_HTTP_CLIENT" != 1 ]; then
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>&2 echo "$ME_NAME: (failed dependency check) http client binary is not available ('curl' or 'wget')"
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exit 1
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fi
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[ -n "$url" ] || {
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>&2 echo "$ME_NAME: (internal error) missing 'url' argument to 'print_http_redirect'"
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exit 3
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}
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if [ "$USE_CURL" = 1 ]; then
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hout=$(curl -Ls -o /dev/null -w %{url_effective} $url) || {
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>&2 echo "$ME_NAME: (fatal error) 'curl (...print_http_redirect)' failed with exit status $?"
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exit 1
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}
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[ -n "$hout" ] || {
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>&2 echo "$ME_NAME: (fatal error) empty URL result from 'curl (...print_http_redirect)'"
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exit 1
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}
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fi
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if [ "$USE_WGET" = 1 ]; then
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hout=$(wget $url --server-response -O /dev/null 2>&1 | awk '(NR==1){SRC=$3;} /^ Location: /{DEST=$2} END{ print SRC, DEST}' | awk '{print $2}') || {
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>&2 echo "$ME_NAME: (fatal error) 'wget (...print_http_redirect)' failed with exit status $?"
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exit 1
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}
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[ -n "$hout" ] || {
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>&2 echo "$ME_NAME: (fatal error) empty URL result from 'wget (...print_http_redirect)'"
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exit 1
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}
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fi
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echo $hout
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}
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#
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# Saves the response body of an http request to a file.
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# Usage:
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# http_download <url> <path>
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# Arguments:
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# <url>
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# The request url
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# (Required)
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# <path>
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# Path to save the response body to
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# (Required)
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#
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http_download() { url=$1; path=$2
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if [ "$FOUND_HTTP_CLIENT" != 1 ]; then
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>&2 echo "$ME_NAME: (failed dependency check) http client binary is not available ('curl' or 'wget')"
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exit 1
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fi
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[ -n "$url" ] || {
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>&2 echo "$ME_NAME: (internal error) missing 'url' argument to 'http_download'"
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exit 3
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}
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[ -n "$path" ] || {
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>&2 echo "$ME_NAME: (internal error) missing 'path' argument to 'http_download'"
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exit 3
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}
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if [ "$USE_CURL" = 1 ]; then
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curl -sS $url > $path || {
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>&2 echo "$ME_NAME: (fatal error) 'curl (...http_download)' failed with exit status $?"
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exit 1
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}
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fi
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if [ "$USE_WGET" = 1 ]; then
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wget -O $path $url || {
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>&2 echo "$ME_NAME: (fatal error) 'wget (...http_download)' failed with exit status $?"
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exit 1
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}
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fi
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return 0
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}
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#
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# cleanup temp files
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#
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LATEST_TLDS_TEMP=
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cleanup_temp_files() {
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if ( [ -n "$LATEST_TLDS_TEMP" ] && [ -f "$LATEST_TLDS_TEMP" ] ); then
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rm $LATEST_TLDS_TEMP
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fi
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}
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trap cleanup_temp_files EXIT
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#
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# Prepares data file
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# Usage:
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# init_data_file <file-basename>
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# Arguments:
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# <file-basename>
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# Basename of data file; for example. "release"
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# (Required)
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#
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init_data_file() { file_basename=$1;
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[ -n "$file_basename" ] || {
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>&2 echo "$ME_NAME: (internal error) missing 'file_basename' argument to 'init_data_file'"
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exit 3
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}
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if ( [ -d "$USER_DATA_ROOT" ] && [ "$INSTALL_MODE" != 1 ] ); then
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path=$USER_DATA_ROOT/$file_basename
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perm=660
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else
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path=$SYS_DATA_ROOT/$file_basename
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perm=444
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fi
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if [ -f "$path" ]; then
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touch $path 2>/dev/null || {
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chmod $perm $path || {
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>&2 echo "$ME_NAME: (fatal error) failed to initialize data file permission on '$path', do you need sudo?"
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exit 1
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}
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touch $path || {
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>&2 echo "$ME_NAME: (fatal error) failed to initialize data file '$path', do you need sudo?"
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exit 1
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}
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return 0
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}
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chmod $perm $path || {
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>&2 echo "$ME_NAME: (fatal error) failed to initialize data file permission on '$path', do you need sudo?"
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exit 1
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}
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else
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touch $path || {
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>&2 echo "$ME_NAME: (fatal error) failed to initialize data file '$path', do you need sudo?"
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exit 1
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}
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chmod $perm $path || {
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>&2 echo "$ME_NAME: (fatal error) failed to initialize data file permission on '$path', do you need sudo?"
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exit 1
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}
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fi
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}
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#
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# Prepares the data root directory
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# Usage:
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# init_data_root
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# Arguments:
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# (none)
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#
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init_data_root() {
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if ( [ -d "$USER_DATA_ROOT" ] && [ "$INSTALL_MODE" != 1 ] ); then
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root_path=$USER_DATA_ROOT
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perm=770
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else
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root_path=$SYS_DATA_ROOT
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perm=775
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fi
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if [ -d "$root_path" ]; then
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if [ ! -w "$root_path" ]; then
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>&2 echo "$ME_NAME: (fatal error) missing write permission on data root '$root_path', do you need sudo?"
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exit 1
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fi
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else
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data_root_parent=$(dirname $root_path)
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if [ ! -w "$(dirname $data_root_parent)" ]; then
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>&2 echo "$ME_NAME: (fatal error) missing write permission on data root parent directory '$data_root_parent', do you need sudo?"
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exit 1
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fi
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fi
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mkdir -p $root_path || {
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>&2 echo "$ME_NAME: (fatal error) failed to create data root '$root_path', do you need sudo?"
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exit 1
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}
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chmod $perm $root_path || {
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>&2 echo "$ME_NAME: (fatal error) failed set permissions on data root '$root_path', do you need sudo?"
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exit 1
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}
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#init_data_file "tlds.tsv"
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init_data_file "checked-time"
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init_data_file "release"
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}
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#
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# Prints the contents of a data file.
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# Usage:
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# print_data_file_contents <file-basename>
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# Arguments:
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# <file-basename>
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# Basename of data file; for example. "release"
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# (Required)
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#
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print_data_file_contents() { file_basename=$1
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[ -n "$file_basename" ] || {
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>&2 echo "$ME_NAME: (internal error) missing 'file_basename' argument to 'print_data_file_contents'"
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exit 3
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}
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if ( [ -d "$USER_DATA_ROOT" ] && [ "$INSTALL_MODE" != 1 ] ); then
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path=$USER_DATA_ROOT/$file_basename
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else
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path=$SYS_DATA_ROOT/$file_basename
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fi
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if [ -f "$path" ]; then
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cat $path || {
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>&2 echo "$ME_NAME: (fatal error) failed to read contents of data file '$path'; do you need sudo?"
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exit 1
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}
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fi
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}
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#
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# Print the path to a data file.
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# Usage:
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# print_data_file_path <file-basename> <contents>
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# Arguments:
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# <file-basename>
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# Basename of data file; for example. "release"
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# (Required)
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#
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print_data_file_path() { file_basename=$1
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[ -n "$file_basename" ] || {
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>&2 echo "$ME_NAME: (internal error) missing 'file_basename' argument to 'write_data_file'"
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exit 3
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}
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if ( [ -d "$USER_DATA_ROOT" ] && [ "$INSTALL_MODE" != 1 ] ); then
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path=$USER_DATA_ROOT/$file_basename
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else
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path=$SYS_DATA_ROOT/$file_basename
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fi
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echo $path
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}
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INITIAL_TLDS_DOWNLOAD=0
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#
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# install mode
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#
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if [ "$INSTALL_MODE" = 1 ]; then
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ME_PATH=$ME_DIR/$ME_NAME
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if [ ! -f "$ME_PATH" ]; then
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>&2 echo "$ME_NAME: (fatal error) unable to determine installation source file"
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exit 1
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fi
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if [ ! -w $(dirname $SYS_INSTALL_PATH) ]; then
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>&2 echo "$ME_NAME: (fatal error) missing write permission to install path parent dir, do you need sudo?"
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exit 1
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fi
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cp -f $ME_PATH $SYS_INSTALL_PATH || {
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>&2 echo "$ME_NAME: (fatal error) failed to copy script to install path"
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exit 1
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}
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init_data_root
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INITIAL_TLDS_DOWNLOAD=1
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#UPDATE_MODE=1
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fi
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#
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#
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#
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TLDS_PATH=$(print_data_file_path tlds.tsv)
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PROJECT_TLDS_PATH=$ME_DIR/formats/tsv/tlds.tsv
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if ( [ "$INSTALL_MODE" = 0 ] && [ ! -f "$TLDS_PATH" ] ); then
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if ( [ ! -d "$SYS_DATA_ROOT" ] && [ ! -d "$USER_DATA_ROOT" ] ); then
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mkdir -p $USER_DATA_ROOT || {
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>&2 echo "$ME_NAME: (fatal error) failed to prepare user data dir"
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exit 1
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}
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fi
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init_data_root
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TLDS_PATH=$(print_data_file_path tlds.tsv)
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if [ -f "$PROJECT_TLDS_PATH" ]; then
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cp "$PROJECT_TLDS_PATH" "$TLDS_PATH" || {
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>&2 echo "$ME_NAME: (fatal error) failed to copy 'tlds.tsv' to user data dir '$TLDS_PATH'"
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exit 1
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}
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date +%s > $(print_data_file_path checked-time)
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else
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INITIAL_TLDS_DOWNLOAD=1
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fi
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fi
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#
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# wheather to check for update
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#
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CHECK_UPDATE=0
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LAST_CHECKED_TIME=$(print_data_file_contents checked-time)
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if [ -n "$LAST_CHECKED_TIME" ]; then
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echo $LAST_CHECKED_TIME | grep -q "^[0-9]*$" && {
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TIME_SINCE_LAST_CHECK=$(($(date +%s)-$LAST_CHECKED_TIME))
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if [ "$TIME_SINCE_LAST_CHECK" -gt "$CHECKED_TIME_TTL" ]; then
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CHECK_UPDATE=1
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fi
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}
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fi
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#
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# check for updates and optionally apply update mode
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#
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if ( [ "$INITIAL_TLDS_DOWNLOAD" = 1 ] || [ "$UPDATE_MODE" = 1 ] || [ "$CHECK_UPDATE" = 1 ] ); then
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CURRENT_RELEASE=$(print_data_file_contents release)
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#
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# tld-enum repo
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#
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GITHUB_REPO=katmore/tld-enum
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#
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# Github and Rawgit base URIs
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#
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RAWGIT_URI=https://cdn.rawgit.com
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GITHUB_URI=https://github.com
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#
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# latest tld-enum release
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#
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LATEST_URL="$GITHUB_URI/$GITHUB_REPO/releases/latest"
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#
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# permanent Rawgit CDN URL to latest 'tlds.tsv'
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#
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LATEST_RELEASE=$(basename $(print_http_redirect $LATEST_URL))
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#https://cdn.rawgit.com/katmore/tld-enum/cf601629/formats/tsv/tlds.tsv
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LATEST_TLDS_TSV_URL="$RAWGIT_URI/$GITHUB_REPO/$LATEST_RELEASE/formats/tsv/tlds.tsv"
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if ( [ "$INITIAL_TLDS_DOWNLOAD" = 1 ] || [ "$UPDATE_MODE" = 1 ] ); then
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#
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# if new release, download and update
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#
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if ( [ "$INITIAL_TLDS_DOWNLOAD" = 1 ] || [ "$CURRENT_RELEASE" != "$LATEST_RELEASE" ] ); then
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if ( [ -d "$USER_DATA_ROOT" ] && [ "$INSTALL_MODE" != 1 ] ); then
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perm=660
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else
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perm=444
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fi
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#
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# prepare data root dir
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#
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init_data_root
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#
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# download 'tlds.tsv' from Rawgit to temp file
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#
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LATEST_TLDS_TEMP=$(mktemp)
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http_download "$LATEST_TLDS_TSV_URL" "$LATEST_TLDS_TEMP"
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#
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# copy to path
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#
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mv $LATEST_TLDS_TEMP $TLDS_PATH
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echo "$LATEST_RELEASE" > $(print_data_file_path release)
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date +%s > $(print_data_file_path checked-time)
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chmod $perm $(print_data_file_path release)
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chmod $perm $(print_data_file_path checked-time)
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chmod $perm $TLDS_PATH
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echo "updated tlds.tsv to $LATEST_RELEASE"
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else
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echo "tlds.tsv is already up-to-date ($CURRENT_RELEASE)"
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fi
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if [ "$UPDATE_MODE" = 1 ]; then
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||||
exit 0
|
||||
fi
|
||||
else
|
||||
if [ "$CURRENT_RELEASE" != "$LATEST_RELEASE" ]; then
|
||||
>&2 echo "$ME_NAME: (current version '$CURRENT_RELEASE') a new release of 'tlds.tsv' is available (see '$ME_NAME --update'): $LATEST_RELEASE"
|
||||
fi
|
||||
fi
|
||||
|
||||
fi
|
||||
|
||||
if [ "$INSTALL_MODE" = 1 ]; then
|
||||
echo "install '$(basename $SYS_INSTALL_PATH)' success"
|
||||
exit 0
|
||||
fi
|
||||
|
||||
#printf "%-25s %-12s\n" "CONTAINER" "IP-ADDR"
|
||||
|
||||
if ( [ -n "$SEARCH" ] && [ "$STARTS_WITH" = 0 ] ); then
|
||||
SHOW_DESC=1; SHOW_TYPE=1
|
||||
fi
|
||||
if [ "$STARTS_WITH" = 1 ]; then
|
||||
MATCH_COUNT=0
|
||||
fi
|
||||
|
||||
IFS_OLD=$IFS
|
||||
IFS=$(printf "\t")
|
||||
|
||||
while read domain desc type; do
|
||||
if [ -n "$SEARCH" ]; then
|
||||
if [ "$STARTS_WITH" = 0 ]; then
|
||||
if [ "$domain" != "$SEARCH" ]; then
|
||||
continue
|
||||
fi
|
||||
else
|
||||
case $domain in
|
||||
$SEARCH*) MATCH_COUNT=$((MATCH_COUNT+1));;
|
||||
*) continue;;
|
||||
esac
|
||||
fi
|
||||
fi
|
||||
line=
|
||||
if ( [ -z "$SEARCH" ] || [ "$STARTS_WITH" = 1 ] ); then
|
||||
line=$domain
|
||||
fi
|
||||
[ "$SHOW_DESC" = 1 ] && {
|
||||
[ -n "$line" ] && line="$line "
|
||||
line="$line$desc"
|
||||
}
|
||||
[ "$SHOW_TYPE" = 1 ] && {
|
||||
[ -n "$line" ] && line="$line "
|
||||
line="$line$type"
|
||||
}
|
||||
printf "$line\n"
|
||||
if ( [ -n "$SEARCH" ] && [ "$STARTS_WITH" = 0 ] ); then
|
||||
exit 0
|
||||
fi
|
||||
done < $TLDS_PATH
|
||||
IFS=$IFS_OLD
|
||||
|
||||
if ( [ -n "$SEARCH" ] && ( [ "$STARTS_WITH" = 0 ] || [ "$MATCH_COUNT" = 0 ] ) ); then
|
||||
[ "$STARTS_WITH" = 0 ] && >&2 echo "domain '$SEARCH' not found"
|
||||
[ "$MATCH_COUNT" = 0 ] && >&2 echo "no domains starting with '$SEARCH' found"
|
||||
exit 20
|
||||
fi
|
||||
|
||||
if [ "$STARTS_WITH" = 1 ]; then
|
||||
>&2 echo ""
|
||||
if [ "$MATCH_COUNT" = "1" ]; then
|
||||
>&2 echo "found 1 matching domain"
|
||||
else
|
||||
>&2 echo "found $MATCH_COUNT matching domains"
|
||||
fi
|
||||
fi
|
||||
|
||||
|
||||
exit 0
|
||||
|
||||
|
||||
|
||||
Loading…
Reference in New Issue