added the main script
This commit is contained in:
parent
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482
web_site_monitor
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482
web_site_monitor
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@ -0,0 +1,482 @@
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#!/bin/bash
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#===============================================================================
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# DIRECTORY:
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# ---
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#
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# FILE:
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# ./web_site_monitor
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#
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# BASIC USAGE:
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# $ ./web_site_monitor
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# OR
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# $ bash web_site_monitor <URL>
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# $ ksh web_site_monitor <URL>
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# $ zsh web_site_monitor <URL>
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# $ dash web_site_monitor <URL>
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# $ busybox ash web_site_monitor <URL>
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#
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# OPTIONS:
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# -d : enable debugging
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# -h : display usage and exit
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# -n : disable logging (enabled by default)
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# -q : disable stdout (enabled by default)
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# -v : print version and exit
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# -E <regexp> : grep with extended regexp
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# -F <regexp> : grep with fixed string
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# -G <regexp> : grep with basic regexp
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#
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# EXIT STATES:
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# 0 = success
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# 1 = (t)csh is not supported
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# 2 = a library is missing
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# 3 = to many grep modes given
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# 4 = invalid option given
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# 5 = a given option requires an argument
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# 6 = url is missing
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# 7 = url doesn't begin with a wget compatible scheme
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#
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# (for exit codes greather then 100 look into the included libraries)
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#
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# DESCRIPTION:
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# Downloads recursively a website, checks for differences against an an older
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# version of the website if present and search for test with regular
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# expressions if wanted.
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#
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# REQUIREMENTS:
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# wget, date, find, tail, bc, mkdir, ln, ...
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#
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# BUGS:
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# ---
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#
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# NOTES:
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# Tested on:
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# - ArchLinux + bash, zsh, ksh, busybox ash & dash
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# - FreeBSD 11 + bash, zsh, ksh, dash & busybox ash
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# - OS X (10.11.6) + bash (sh), zsh and ksh
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# ! (t)csh is NOT supported !
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#
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# AUTHOR:
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# Patrick Neumann, patrick@neumannsland.de
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#
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# COMPANY:
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# (privately)
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#
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# VERSION:
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# 1.0
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#
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# LINK TO THE MOST CURRENT VERSION:
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# (Sorry, I bet, I'm not allowed to publish it over GitHub!)
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#
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# CREATED:
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# 2016-10-18
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#
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# COPYRIGHT (C):
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# 2016 - Patrick Neumann
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#
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# LICENSE:
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# WARRANTY:
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# NOTE:
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# ---
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#
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# TODO:
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# More testing:
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# - Debian GNU/Linux 8.x + bash, zsh, ksh, dash & busybox ash
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# - Linux Mint 18 (Cinnamon) + bash, zsh, ksh, dash & busybox ash
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# - Windows 10 & Ubuntu bash
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#
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# HISTORY:
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# 1.0 - Patrick Neumann - Initial (for the trainers eyes only) release
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#
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#===============================================================================
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#-------------------------------------------------------------------------------
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# (t)csh needs too many modifications!
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# (different "if" syntax, no conditional command, "set" before var="val",...)
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# Worth reading link: http://www.grymoire.com/unix/CshTop10.txt
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#-------------------------------------------------------------------------------
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test -n "${shell}" \
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&& printf "\n\033[01;31;40mERROR: (t)csh is not supported... EXIT\!\!\!\033[00m\n\n" \
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&& exit 1
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#-------------------------------------------------------------------------------
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# Checking for and including libraries.
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#-------------------------------------------------------------------------------
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# dash doesn't support arrays!
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LIBRARIES="casualscripter_functions.sh"
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readonly LIBRARIES="${LIBRARIES} forensicFunctions.sh"
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for library in ${LIBRARIES} ; do
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if ! [ -f "${0%/*}/${library}" ] ; then
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printf "\n\033[01;31;40mERROR: library \"${library}\" missing... EXIT!!!\033[00m\n\n"
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exit 2
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fi
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source "${0%/*}/${library}"
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done
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#=== CONFIGURATION (static) ====================================================
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# Version:
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readonly VERSION="1.0"
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readonly CREATED="2016-10-18"
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# BIN_WHICH already set in library!
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# BIN_UNAME already set in library!
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# BIN_BASENAME already set in library!
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# BIN_PS already set in library!
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# BIN_GREP already set in library!
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# BIN_AWK already set in library!
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# BIN_SED already set in library!
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# BIN_DIRNAME already set in library!
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# BIN_TEE already set in library!
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# BIN_OPENSSL already set in library!
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# BIN_PRINTF already set in library!
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assign_binary "wget"
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assign_binary "date"
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assign_binary "find"
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assign_binary "tail"
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assign_binary "bc"
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assign_binary "mkdir"
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assign_binary "ln"
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assign_binary "rmdir"
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assign_binary "rm"
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# Changeable defaults:
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# Default of ECHO_FUNC in library is "display".
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ECHO_FUNC="display_and_log"
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GET_HELP="no"
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ENABLE_DEBUGGING="no"
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DISABLE_LOGGING="no"
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DISABLE_STDOUT="no"
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GET_VERSION_ONLY="no"
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# The grep in macOS does not support Perl-compatible regular expressions.
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# (That is why this script doesn't support it.)
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GREP_MODE=""
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# Switching the Digest while monitoring a website will break the detection
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# of modified content the first time after switching.
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# (That is why it's not part of the command line optinons.)
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readonly DGST="md5"
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readonly DIR_NEW="new_files"
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readonly DIR_MV="renamed_files"
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readonly DIR_MOD="modified_files"
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readonly DIR_RM="deleted_files"
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readonly DIR_GREP="search_and_found"
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# Use UTC to prevent problems if the investigator have a flight into another timezone
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readonly LAST_RUN="$( ${BIN_FIND} ${DARWIN_FIND_REGEXP_TYPE} . ${LINUX_FIND_REGEXP_TYPE} -regex '\./[[:digit:]]{8}T[[:digit:]]{6}UTC' -type d | sort -d | ${BIN_TAIL} -n 1 )"
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readonly UTC="$( ${BIN_DATE} -u "+%s" )"
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#readonly UTC="171320100" # 06.06.1975
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#readonly UTC="1271231700" # 14.04.2010
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readonly DIRECTORY="./$( ${BIN_DATE} -u ${DATE_DISPLAY}${UTC} "+%Y%m%dT%H%M%SUTC" )"
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readonly LOCAL_DATE="$( ${BIN_DATE} -u ${DATE_DISPLAY}${UTC} )"
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# Create target directory if necessary
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if ! [ -d "${DIRECTORY}" ] ; then
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${BIN_MKDIR} "${DIRECTORY}"
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fi
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readonly LAST_DGST_FILE="${LAST_RUN}/openssl_dgst-${DGST}.txt"
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readonly LOG_FILE="${DIRECTORY}/wsm.log"
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WGET_OUTPUT="--no-verbose"
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WGET_LOGFILE="${LOG_FILE}"
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readonly DGST_FILE="${DIRECTORY}/openssl_dgst-${DGST}.txt"
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#=== FUNCTION ==================================================================
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# NAME: usage
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# DESCRIPTION: Display help.
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# PARAMETER 1: -
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#===============================================================================
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usage() {
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${BIN_PRINTF} "BASIC USAGE...\n"
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${BIN_PRINTF} " $ ./web_site_monitor <URL>\n"
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${BIN_PRINTF} " OR\n"
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${BIN_PRINTF} " $ bash web_site_monitor <URL>\n"
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${BIN_PRINTF} " $ ksh web_site_monitor <URL>\n"
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${BIN_PRINTF} " $ zsh web_site_monitor <URL>\n"
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${BIN_PRINTF} " $ dash web_site_monitor <URL>\n"
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${BIN_PRINTF} " $ busybox ash web_site_monitor <URL>\n\n"
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${BIN_PRINTF} "OPTIONS:\n"
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${BIN_PRINTF} " -d : enable debugging\n"
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${BIN_PRINTF} " -h : display usage and exit\n"
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${BIN_PRINTF} " -n : disable logging (enabled by default)\n"
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${BIN_PRINTF} " -q : disable stdout (enabled by default)\n"
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${BIN_PRINTF} " -v : print version and exit\n"
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${BIN_PRINTF} " -E <regexp> : text search with extended regexp\n"
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${BIN_PRINTF} " -F <regexp> : text search with fixed string\n"
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${BIN_PRINTF} " -G <regexp> : text search with basic regexp\n\n"
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}
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#=== FUNCTION ==================================================================
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# NAME: anti_multi_grep
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# DESCRIPTION: Only one text search of "-E", "-F" or "-G"
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# incl. regexp make sense.
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# PARAMETER 1: -
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#===============================================================================
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anti_multi_grep () {
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if [ -n "${GREP_MODE}" ] ; then
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${BIN_PRINTF} "\033[01;31;40mERROR: to many grep modes given... EXIT!!!\033[00m\n"
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${BIN_RMDIR} "${DIRECTORY}"
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usage
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exit 3
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fi
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}
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#=== CONFIGURATION (user 1/2) ==================================================
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# (-) GNU- and BSD-getopt behave differently
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# (+) getopts is more POSIX and system-/shell-portable
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while getopts ":dhnqvE:F:G:" opt ; do
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case $opt in
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d ) readonly ENABLE_DEBUGGING="yes" ;;
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h ) readonly GET_HELP="yes" ;;
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n ) readonly DISABLE_LOGGING="yes" ;;
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q ) readonly DISABLE_STDOUT="yes" ;;
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v ) readonly GET_VERSION_ONLY="yes" ;;
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E ) anti_multi_grep
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readonly GREP_MODE="--extended-regexp"
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readonly REGEXP="${OPTARG}"
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;;
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F ) anti_multi_grep
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readonly GREP_MODE="--fixed-strings"
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readonly REGEXP="${OPTARG}"
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;;
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G ) anti_multi_grep
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readonly GREP_MODE="--basic-regexp"
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readonly REGEXP="${OPTARG}"
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;;
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\? ) ${BIN_PRINTF} "\033[01;31;40mERROR: invalid option: -${OPTARG}... EXIT!!!\033[00m\n"
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usage
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exit 4
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;;
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: ) ${BIN_PRINTF} "\033[01;31;40mERROR: option -${OPTARG} requires an argument... EXIT!!!\033[00m\n"
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usage
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exit 5
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;;
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esac
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done
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LC_ALL="C" shift "$(( OPTIND - 1 ))"
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#=== CONFIGURATION (output) ====================================================
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if [ "${DISABLE_LOGGING}" = "yes" ] ; then
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ECHO_FUNC="display"
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WGET_LOGFILE="/dev/null"
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fi
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if [ "${DISABLE_STDOUT}" = "yes" ] ; then
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ECHO_FUNC="log"
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WGET_OUTPUT="--append-output=${LOG_FILE}"
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fi
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if [ "${DISABLE_LOGGING}" = "yes" -a "${DISABLE_STDOUT}" = "yes" ] ; then
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ECHO_FUNC="quiet"
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WGET_OUTPUT="--quiet"
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WGET_LOGFILE="/dev/null"
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fi
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# clear logfile if necessary
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if [ "${ECHO_FUNC}" = "display_and_log" -o "${ECHO_FUNC}" = "log" ] ; then
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overwrite "${LOG_FILE}" logfile
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fi
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#-------------------------------------------------------------------------------
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# Just display version, if "-h" or "-v" is given and exit without error code
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# if "-v" is given.
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#-------------------------------------------------------------------------------
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if [ "${GET_HELP}" = "yes" -o "${GET_VERSION_ONLY}" = "yes" ] ; then
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${BIN_PRINTF} "\nVersion: ${VERSION} (created: ${CREATED})\n\n"
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else
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${ECHO_FUNC} "\nVersion: ${VERSION} (created: ${CREATED})\n\n"
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fi
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if [ "${GET_VERSION_ONLY}" = "yes" ] ; then
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${BIN_RMDIR} "${DIRECTORY}"
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exit 0
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fi
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#-------------------------------------------------------------------------------
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# Just display help, if "-h" is given and exit without error code.
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#-------------------------------------------------------------------------------
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# make only sence for stdout
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if [ "${GET_HELP}" = "yes" ] ; then
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${BIN_RMDIR} "${DIRECTORY}"
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usage
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exit 0
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fi
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#=== CONFIGURATION (user 2/2) ==================================================
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if [ -z "${1}" ] ; then
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${BIN_PRINTF} "\033[01;31;40mERROR: url is missing... EXIT!!!\033[00m\n\n"
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${BIN_RM} -rf "${DIRECTORY}"
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usage
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exit 6
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else
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if ! ${BIN_PRINTF} "${1}" | ${BIN_GREP} --extended-regexp '(http|ftp)s?://' > /dev/null 2>&1 ; then
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${BIN_PRINTF} "\033[01;31;40mERROR: url doesn't begin with a wget compatible scheme... EXIT!!!\033[00m\n\n"
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${BIN_RM} -rf "${DIRECTORY}"
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usage
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exit 7
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fi
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fi
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# wget needs one tailing slash if accessing a subdir on a server
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readonly URL="$( ${BIN_PRINTF} "${1}" \
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| ${BIN_SED} ${SED_EXT_REGEXP} 's#/*$#/#' )"
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readonly SUBDIR="$( ${BIN_PRINTF} ${URL} \
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| ${BIN_SED} ${SED_EXT_REGEXP} 's#^(http|ftp)s?://##' \
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| ${BIN_SED} ${SED_EXT_REGEXP} 's#/$##' )"
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#-------------------------------------------------------------------------------
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# Output for some debugging (development).
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#-------------------------------------------------------------------------------
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if [ "${ENABLE_DEBUGGING}" = "yes" ] ; then
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${ECHO_FUNC} "Debugging...\n\n"
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${ECHO_FUNC} "UTC timestamp: ${UTC}\n"
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${ECHO_FUNC} "Directory name: ${DIRECTORY}\n"
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${ECHO_FUNC} "Logfile name: ${LOG_FILE}\n"
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${ECHO_FUNC} "Hashfile name: ${DGST_FILE}\n"
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${ECHO_FUNC} "Get help: ${GET_HELP}\n"
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${ECHO_FUNC} "Enable debugging: ${ENABLE_DEBUGGING}\n"
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${ECHO_FUNC} "Disable logging: ${DISABLE_LOGGING}\n"
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${ECHO_FUNC} "Disable stdout: ${DISABLE_STDOUT}\n"
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${ECHO_FUNC} "Grep mode: ${GREP_MODE}\n"
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${ECHO_FUNC} "Regexp: ${REGEXP}\n"
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${ECHO_FUNC} "URL (last param): ${URL}\n"
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${ECHO_FUNC} "wget subdir (URL w/o scheme): ${SUBDIR}\n"
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${ECHO_FUNC} "Echo function: ${ECHO_FUNC}\n"
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${ECHO_FUNC} "Wget output: ${WGET_OUTPUT}\n"
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${ECHO_FUNC} "Wget logfile: ${WGET_LOGFILE}\n\n"
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fi
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#-------------------------------------------------------------------------------
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# Output/log first informations.
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#-------------------------------------------------------------------------------
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if [ -z "${LAST_RUN}" ] ; then
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${ECHO_FUNC} "This is the first run.\n\n"
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else
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${ECHO_FUNC} "The directory of the last run is: ${LAST_RUN}\n\n"
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fi
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${ECHO_FUNC} "This run was starting at: ${LOCAL_DATE}\n\n"
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#-------------------------------------------------------------------------------
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# Recursive download with wget.
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#-------------------------------------------------------------------------------
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${ECHO_FUNC} "Mirroring website...\n\n"
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# macOS and FreeBSD "tee" only support "-a" and not "--append"
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${BIN_WGET} --recursive \
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--level=10 \
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--tries=2 \
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--timeout=10 \
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--execute robots=off \
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--directory-prefix=${DIRECTORY} \
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--user-agent='Mozilla/5.0 (Windows NT 6.1; WOW64; rv:40.0) Gecko/20100101 Firefox/40.1' \
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${WGET_OUTPUT} \
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"${URL}" 2>&1 | ${BIN_TEE} -a "${WGET_LOGFILE}"
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${ECHO_FUNC} "\nFiles are stored in ${DIRECTORY}/${SUBDIR}\n\n"
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#-------------------------------------------------------------------------------
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# Hashing with openssl. (md5sum is not supported by macOS.)
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#-------------------------------------------------------------------------------
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${ECHO_FUNC} "Calculationg hash values...\n\n"
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${BIN_FIND} "${DIRECTORY}/${SUBDIR}" -type f -exec ${BIN_OPENSSL} dgst -"${DGST}" '{}' \; \
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| ${BIN_SED} "s#${DIRECTORY}#.#" > "${DGST_FILE}"
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${ECHO_FUNC} "The hashfile ${DGST_FILE} was successfully generated\n\n"
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#-------------------------------------------------------------------------------
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# Verifying hashes against older download.
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#-------------------------------------------------------------------------------
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if [ -n "${LAST_RUN}" ] ; then
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${ECHO_FUNC} "Searching for differnences...\n\n"
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while read line ; do
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file="${line#*(}"
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file="${file%)= *}"
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hash="${line#*)= }"
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if ! ${BIN_GREP} --fixed-strings "${line}" "${DGST_FILE}" > /dev/null 2>&1 ; then
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if ${BIN_GREP} --fixed-strings "${file}" "${DGST_FILE}" > /dev/null 2>&1 ; then
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if ! [ -d "${DIRECTORY}/${DIR_MOD}/$( ${BIN_DIRNAME} "${file#./}" )" ] ; then
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# macOS and FreeBSD only support "-p" and not "--partents"
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${BIN_MKDIR} -p "${DIRECTORY}/${DIR_MOD}/$( ${BIN_DIRNAME} "${file#./}" )"
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fi
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# macOS and FreeBSD only support "-s" and not "--symbolic"
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${BIN_LN} -s "${PWD}/${DIRECTORY#./}/${file#./}" "${DIRECTORY}/${DIR_MOD}/${file#./}"
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${ECHO_FUNC} "Symbolic link of modified/exchanged file ${file} was created in ${DIRECTORY}/${DIR_MOD}\n"
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elif ${BIN_GREP} --fixed-strings "${hash}" "${DGST_FILE}" > /dev/null 2>&1 ; then
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if ! [ -d "${DIRECTORY}/${DIR_MV}/$( ${BIN_DIRNAME} "${file#./}" )" ] ; then
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${BIN_MKDIR} -p "${DIRECTORY}/${DIR_MV}/$( ${BIN_DIRNAME} "${file#./}" )"
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fi
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new_line="$( ${BIN_GREP} --extended-regexp "$( ${BIN_DIRNAME} "${file}" ).*${hash}" "${DGST_FILE}" )"
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new_file="${new_line#*(}"
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new_file="${new_file%)= *}"
|
||||
${BIN_LN} -s "${PWD}/${DIRECTORY#./}/${new_file#./}" "${DIRECTORY}/${DIR_MV}/${file#./}"
|
||||
${ECHO_FUNC} "Symbolic link of renamed/moved file ${file} was created in ${DIRECTORY}/${DIR_MV}\n"
|
||||
else
|
||||
if ! [ -d "${DIRECTORY}/${DIR_RM}/$( ${BIN_DIRNAME} "${file#./}" )" ] ; then
|
||||
${BIN_MKDIR} -p "${DIRECTORY}/${DIR_RM}/$( ${BIN_DIRNAME} "${file#./}" )"
|
||||
fi
|
||||
${BIN_LN} -s "${PWD}/${LAST_RUN#./}/${file#./}" "${DIRECTORY}/${DIR_RM}/${file#./}"
|
||||
${ECHO_FUNC} "Symbolic link of deleted file ${file} was created in ${DIRECTORY}/${DIR_RM}\n"
|
||||
fi
|
||||
fi
|
||||
done < "${LAST_DGST_FILE}"
|
||||
|
||||
while read line ; do
|
||||
file="${line#*(}"
|
||||
file="${file%)= *}"
|
||||
hash="${line#*)= }"
|
||||
|
||||
if ! ${BIN_GREP} --fixed-strings "${file}" "${LAST_DGST_FILE}" > /dev/null 2>&1 \
|
||||
&& ! ${BIN_GREP} --fixed-strings "${hash}" "${LAST_DGST_FILE}" > /dev/null 2>&1 ; then
|
||||
if ! [ -d "${DIRECTORY}/${DIR_NEW}/$( ${BIN_DIRNAME} "${file#./}" )" ] ; then
|
||||
${BIN_MKDIR} -p "${DIRECTORY}/${DIR_NEW}/$( ${BIN_DIRNAME} "${file#./}" )"
|
||||
fi
|
||||
${BIN_LN} -s "${PWD}/${DIRECTORY#./}/${file#./}" "${DIRECTORY}/${DIR_NEW}/${file#./}"
|
||||
${ECHO_FUNC} "Symbolic link of new added file ${file} was created in ${DIRECTORY}/${DIR_NEW}\n"
|
||||
fi
|
||||
done < "${DGST_FILE}"
|
||||
|
||||
${ECHO_FUNC} "... done.\n\n"
|
||||
fi
|
||||
|
||||
#-------------------------------------------------------------------------------
|
||||
# Text search (if given on the command line).
|
||||
#-------------------------------------------------------------------------------
|
||||
if [ -n "${REGEXP}" ] ; then
|
||||
${ECHO_FUNC} "Processing text search...\n\n"
|
||||
|
||||
readonly HITS="$( ${BIN_GREP} --recursive \
|
||||
--files-with-matches \
|
||||
${GREP_MODE} "${REGEXP}" \
|
||||
"${DIRECTORY}/${SUBDIR}" )"
|
||||
|
||||
if [ -n "${HITS}" ] ; then
|
||||
OLDIFS=$IFS
|
||||
IFS=$'\n'
|
||||
for hit in ${HITS} ; do
|
||||
echo "${hit}"
|
||||
if ! [ -d "${DIRECTORY}/${DIR_GREP}/$( ${BIN_DIRNAME} "${hit#./*/}" )" ] ; then
|
||||
${BIN_MKDIR} -p "${DIRECTORY}/${DIR_GREP}/$( ${BIN_DIRNAME} "${hit#./*/}" )"
|
||||
fi
|
||||
${BIN_LN} -s "${PWD}/${hit#./}" "${DIRECTORY}/${DIR_GREP}/${hit#./*/}"
|
||||
${ECHO_FUNC} "Symbolic link of file ${hit} with search hit was created in ${DIRECTORY}/${DIR_GREP}\n"
|
||||
done
|
||||
IFS=$OLDIFS
|
||||
fi
|
||||
|
||||
${ECHO_FUNC} "\n... done.\n\n"
|
||||
fi
|
||||
|
||||
${ECHO_FUNC} "The script has successfully finished.\n\n"
|
||||
|
||||
exit 0
|
||||
Loading…
x
Reference in New Issue
Block a user