utils/filtron.sh: various fix from first installation test (WIP)
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
This commit is contained in:
Markus Heiser
parent
f20193155a
commit
4990b07b4b
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@ -11,6 +11,11 @@ source "$(dirname "${BASH_SOURCE[0]}")/lib.sh"
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FILTRON_ETC="/etc/filtron"
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FILTRON_RULES="$FILTRON_ETC/rules.json"
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FILTRON_API="127.0.0.1:4005"
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FILTRON_LISTEN="127.0.0.1:4004"
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FILTRON_TARGET="127.0.0.1:8888"
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SERVICE_NAME="filtron"
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SERVICE_USER="${SERVICE_NAME}"
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SERVICE_HOME="/home/${SERVICE_USER}"
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@ -23,6 +28,11 @@ GO_ENV="${SERVICE_HOME}/.go_env"
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GO_PKG_URL="https://dl.google.com/go/go1.13.5.linux-amd64.tar.gz"
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GO_TAR=$(basename "$GO_PKG_URL")
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CONFIG_FILES=(
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"${FILTRON_RULES}"
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"${SERVICE_SYSTEMD_UNIT}"
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)
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# ----------------------------------------------------------------------------
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usage(){
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# ----------------------------------------------------------------------------
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@ -37,10 +47,16 @@ usage:
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$(basename "$0") remove [all]
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$(basename "$0") activate [server]
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$(basename "$0") deactivate [server]
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$(basename "$0") show [server]
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shell - start interactive shell with user ${SERVICE_USER}
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install user - add service user '$SERVICE_USER' at $SERVICE_HOME
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shell
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start interactive shell from user ${SERVICE_USER}
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show server
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show server status and log
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install / remove
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all - complete setup of filtron server
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install user
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add service user '$SERVICE_USER' at $SERVICE_HOME
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EOF
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[ ! -z ${1+x} ] && echo -e "$1"
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}
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@ -58,6 +74,14 @@ main(){
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sudo_or_exit
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interactive_shell
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;;
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show)
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case $2 in
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server)
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sudo_or_exit
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show_server
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;;
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*) usage "$_usage"; exit 42;;
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esac ;;
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install)
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sudo_or_exit
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case $2 in
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@ -91,21 +115,27 @@ main(){
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install_all() {
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rst_title "Install $SERVICE_NAME (service)"
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assert_user
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wait_key
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install_go
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wait_key
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install_filtron
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wait_key
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install_server
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wait_key
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}
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remove_all() {
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rst_title "De-Install $SERVICE_NAME (service)"
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remove_server
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wait_key
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remove_user
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rm -rf "$FILTRON_ETC"
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rm -r "$FILTRON_ETC" 2>&1 | prefix_stdout
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wait_key
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}
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install_server() {
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rst_title "Install System-D Unit ${SERVICE_NAME}.service ..." section
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rst_title "Install System-D Unit ${SERVICE_NAME}.service" section
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echo
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install_template ${SERVICE_SYSTEMD_UNIT} root root 644
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wait_key
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activate_server
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@ -116,12 +146,12 @@ remove_server() {
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return
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fi
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deactivate_server
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rm "${SERVICE_SYSTEMD_UNIT}"
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rm "${SERVICE_SYSTEMD_UNIT}" 2>&1 | prefix_stdout
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}
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activate_server () {
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rst_title "Activate $SERVICE_NAME (service)" section
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echo
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tee_stderr <<EOF | bash 2>&1 | prefix_stdout
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systemctl enable $SERVICE_NAME.service
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systemctl restart $SERVICE_NAME.service
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@ -129,7 +159,6 @@ EOF
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tee_stderr <<EOF | bash 2>&1 | prefix_stdout
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systemctl status $SERVICE_NAME.service
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EOF
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wait_key
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}
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deactivate_server () {
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@ -139,7 +168,6 @@ deactivate_server () {
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systemctl stop $SERVICE_NAME.service
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systemctl disable $SERVICE_NAME.service
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EOF
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wait_key
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}
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assert_user() {
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@ -168,18 +196,18 @@ EOF
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remove_user() {
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rst_title "Drop $SERVICE_USER HOME" section
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if ask_yn "Do you really want to drop $SERVICE_USER home folder?"; then
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userdel -r -f "$SERVICE_USER"
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userdel -r -f "$SERVICE_USER" 2>&1 | prefix_stdout
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else
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rst_para "Leave HOME folder $(du -sh "$SERVICE_HOME") unchanged."
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fi
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}
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interactive_shell(){
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echo "// exit with STRG-D"
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echo "// exit with CTRL-D"
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sudo -H -u ${SERVICE_USER} -i
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}
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_service_prefix="$SERVICE_USER@$(hostname) -->| "
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_service_prefix=" |$SERVICE_USER| "
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install_go(){
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rst_title "Install Go in user's HOME" section
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@ -199,14 +227,29 @@ EOF
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! which go >/dev/null && echo "Go Installation not found in PATH!?!"
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which go >/dev/null && go version && echo "congratulations -- Go installation OK :)"
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EOF
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wait_key
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}
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install_filtron() {
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tee_stderr <<EOF | sudo -i -u "$SERVICE_USER" | prefix_stdout "$_service_prefix"
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go get -v -u github.com/asciimoo/filtron 2>&1
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rst_title "Install filtron in user's ~/go-apps" section
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echo
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tee_stderr <<EOF | sudo -i -u "$SERVICE_USER" 2>&1 | prefix_stdout "$_service_prefix"
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go get -v -u github.com/asciimoo/filtron
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EOF
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install_template "$FILTRON_ETC/rules.json" root root 644
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install_template --no-eval "$FILTRON_RULES" root root 644
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}
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show_server () {
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rst_title "server status & log"
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echo
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systemctl status filtron.service
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echo
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read -s -n1 -t 5 -p "// use CTRL-C to stop monitoring the log"
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echo
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while true; do
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trap break 2
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journalctl -f -u filtron
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done
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return 0
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}
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# ----------------------------------------------------------------------------
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72
utils/lib.sh
72
utils/lib.sh
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@ -22,6 +22,13 @@ if [[ -z "$SYSTEMD_UNITS" ]]; then
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SYSTEMD_UNITS="/lib/systemd/system"
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fi
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if [[ -z ${DIFF_CMD} ]]; then
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DIFF_CMD="diff -u"
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if command -v colordiff >/dev/null; then
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DIFF_CMD="colordiff -u"
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fi
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fi
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sudo_or_exit() {
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# usage: sudo_or_exit
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@ -55,10 +62,10 @@ rst_para() {
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# usage: RST_INDENT=1 rst_para "lorem ipsum ..."
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local prefix=''
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if ! [[ -z $RST_INDENT ]] && [[ $RST_INDENT -gt 0 ]]; then
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prefix="$(for i in $(seq 1 "$RST_INDENT"); do printf " "; done)"
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echo -en "\n$*\n" | $FMT | prefix_stdout "$prefix"
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prefix="$(for i in $(seq 1 "$RST_INDENT"); do printf " "; done)"
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echo -en "\n$*\n" | $FMT | prefix_stdout "$prefix"
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else
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echo -en "\n$*\n" | $FMT
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echo -en "\n$*\n" | $FMT
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fi
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}
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@ -66,15 +73,23 @@ err_msg() { echo -e "ERROR: $*" >&2; }
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warn_msg() { echo -e "WARN: $*" >&2; }
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info_msg() { echo -e "INFO: $*"; }
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clean_stdin() {
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if [[ $(uname -s) != 'Darwin' ]]; then
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while $(read -n1 -t 0.1); do : ; done
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fi
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}
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wait_key(){
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# usage: waitKEY [<timeout in sec>]
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clean_stdin
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local _t=$1
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[[ ! -z $FORCE_TIMEOUT ]] && _t=$FORCE_TIMEOUT
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[[ ! -z $_t ]] && _t="-t $_t"
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# shellcheck disable=SC2086
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read -n1 $_t -p "** press any [KEY] to continue **"
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read -s -n1 $_t -p "** press any [KEY] to continue **"
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echo
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clean_stdin
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}
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ask_yn() {
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@ -100,6 +115,7 @@ ask_yn() {
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esac
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echo
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while true; do
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clean_stdin
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printf "$1 ${choice} "
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# shellcheck disable=SC2086
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read -n1 $_t
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@ -117,6 +133,7 @@ ask_yn() {
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_t=""
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err_msg "invalid choice"
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done
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clean_stdin
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return $exit_val
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}
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@ -144,7 +161,7 @@ tee_stderr () {
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prefix_stdout () {
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# usage: <cmd> | prefix_stdout [prefix]
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local prefix="-->| "
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local prefix=" | "
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if [[ ! -z $1 ]] ; then prefix="$1"; fi
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@ -223,6 +240,7 @@ choose_one() {
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fi
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done
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while true; do
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clean_stdin
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printf "$1 [$default] "
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if (( 10 > $max )); then
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@ -242,6 +260,7 @@ choose_one() {
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err_msg "invalid choice"
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done
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echo
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clean_stdin
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eval "$env_name"='${list[${REPLY}]}'
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}
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@ -288,31 +307,48 @@ install_template() {
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mkdir -p "$(dirname "${dst}")"
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if [[ -f "${dst}" ]] ; then
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info_msg "file ${dst} allready exists on this host"
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if [[ ! -f "${dst}" ]]; then
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info_msg "install: ${template_file}"
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sudo -H install -v -o "${owner}" -g "${group}" -m "${chmod}" \
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"${template_file}" "${dst}" | prefix_stdout
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return $?
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fi
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if [[ -f "${dst}" ]] && cmp --silent "${template_file}" "${dst}" ; then
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info_msg "file ${dst} allready installed"
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return 0
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fi
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info_msg "file ${dst} allready exists on this host"
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while true; do
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choose_one _reply "choose next step with file $dst" \
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"replace file" \
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"leave file unchanged"
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"leave file unchanged" \
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"interactiv shell" \
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"diff files"
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case $_reply in
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"replace file")
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info_msg "install: ${template_file}"
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sudo -H install -v -o "${owner}" -g "${group}" -m "${chmod}" \
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"${template_file}" "${dst}" | prefix_stdout
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break
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;;
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"leave file unchanged")
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break
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;;
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"interactiv shell")
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echo "// exit with STRG-D"
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echo "// edit ${dst} to your needs"
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echo "// exit with CTRL-D"
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sudo -H -u "${owner}" -i
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;;
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$DIFF_CMD "${dst}" "${template_file}"
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if ask_yn "did you edit ${template_file} to your needs?"; then
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break
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fi
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;;
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"diff files")
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$DIFF_CMD "${dst}" "${template_file}" | prefix_stdout
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esac
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else
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info_msg "install: ${template_file}"
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sudo -H install -v -o "${owner}" -g "${group}" -m "${chmod}" \
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"${template_file}" "${dst}" | prefix_stdout
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fi
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done
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}
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@ -1,56 +1,98 @@
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[
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[{
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"name":"search request",
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"filters":[
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"Param:q",
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"Path=^(/|/search)$"
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],
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"interval":60,
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"limit":15,
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"subrules":[
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{
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"name": "api limit",
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"interval": 60,
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"limit": 1000,
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"filters": ["Path=^/api"],
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"aggregations": ["Path"],
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"actions": [
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{"name": "block"}
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],
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"subrules": [
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{
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"name": "drop put",
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"interval": 60,
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"limit": 100,
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"filters": ["Method=PUT"],
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"aggregations": ["Header:X-Forwarded-For"],
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"actions": [
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{"name": "shell",
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"params": {"cmd": "iptables -A INPUT -s %v -j DROP", "args": ["Header:X-Forwarded-For"]}}
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]
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}
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]
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"name":"roboagent limit",
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"interval":60,
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"limit":15,
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"filters":[
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"Header:User-Agent=(curl|cURL|Wget|python-requests|Scrapy|FeedFetcher|Go-http-client)"
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],
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"actions":[
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{"name": "log"},
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{
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"name":"block",
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"params":{
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"message":"Rate limit exceeded"
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}
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}
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]
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},
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{
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"name": "log'n'block rss",
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"interval": 300,
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"limit": 2500,
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"filters": ["Path=^/$", "GET:format=rss"],
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"actions": [
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{"name": "log"},
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{"name": "block"}
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]
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"name":"botlimit",
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"limit":0,
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"stop":true,
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"filters":[
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"Header:User-Agent=(Googlebot|bingbot|Baiduspider|yacybot|YandexMobileBot|YandexBot|Yahoo! Slurp|MJ12bot|AhrefsBot|archive.org_bot|msnbot|MJ12bot|SeznamBot|linkdexbot|Netvibes|SMTBot|zgrab|James BOT)"
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],
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"actions":[
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{"name": "log"},
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{
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"name":"block",
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"params":{
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"message":"Rate limit exceeded"
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}
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}
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]
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},
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{
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"name": "log rule",
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"filters": ["Path=/"],
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"actions": [ {"name": "log"} ],
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"subrules": [
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{
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"name": "block missing accept-language",
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"filters": ["!Header:Accept-Language"],
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"actions": [
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{"name": "block"}
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]
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},
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{
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"name": "block curl",
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"filters": ["Header:User-Agent=[Cc]url"],
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"actions": [
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{"name": "block"}
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]
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}
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]
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"name":"IP limit",
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"interval":60,
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"limit":15,
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"stop":true,
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"aggregations":[
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"Header:X-Forwarded-For"
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],
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"actions":[
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{"name": "log"},
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{
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"name":"block",
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"params":{
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"message":"Rate limit exceeded"
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}
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}
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]
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},
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{
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"name":"rss/json limit",
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"interval":60,
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"limit":15,
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"stop":true,
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"filters":[
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"Param:format=(csv|json|rss)"
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],
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"actions":[
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{"name": "log"},
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{
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"name":"block",
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"params":{
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"message":"Rate limit exceeded"
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}
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}
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]
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},
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{
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"name":"useragent limit",
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"interval":60,
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"limit":15,
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"aggregations":[
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"Header:User-Agent"
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],
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"actions":[
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{"name": "log"},
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{
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"name":"block",
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"params":{
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"message":"Rate limit exceeded"
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}
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}
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]
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}
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]
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]
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}]
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@ -10,7 +10,7 @@ Type=simple
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User=${SERVICE_USER}
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Group=${SERVICE_GROUP}
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WorkingDirectory=${SERVICE_HOME}
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ExecStart=${SERVICE_HOME}/go-apps/bin/filtron -rules ${FILTRON_RULES}
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ExecStart=${SERVICE_HOME}/go-apps/bin/filtron -api '${FILTRON_API}' -listen '${FILTRON_LISTEN}' -rules '${FILTRON_RULES}' -target '${FILTRON_TARGET}'
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Restart=always
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Environment=USER=${SERVICE_USER} HOME=${SERVICE_HOME}
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