Standardize scripts, use bash and double brackets
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@@ -1,4 +1,4 @@
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#! /bin/sh
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#! /bin/bash
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echo "Wait for tunnel to be fully initialized and PIA is ready to give us a port"
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sleep 15
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@@ -9,8 +9,8 @@ sleep 15
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# Settings
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TRANSMISSION_PASSWD_FILE=/config/transmission-credentials.txt
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transmission_username=$(head -1 $TRANSMISSION_PASSWD_FILE)
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transmission_passwd=$(tail -1 $TRANSMISSION_PASSWD_FILE)
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transmission_username=$(head -1 ${TRANSMISSION_PASSWD_FILE})
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transmission_passwd=$(tail -1 ${TRANSMISSION_PASSWD_FILE})
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pia_client_id_file=/etc/transmission/pia_client_id
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transmission_settings_file=${TRANSMISSION_HOME}/settings.json
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@@ -19,11 +19,11 @@ transmission_settings_file=${TRANSMISSION_HOME}/settings.json
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#
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new_client_id() {
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head -n 100 /dev/urandom | sha256sum | tr -d " -" | tee $pia_client_id_file
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head -n 100 /dev/urandom | sha256sum | tr -d " -" | tee ${pia_client_id_file}
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}
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pia_client_id="$(cat $pia_client_id_file 2>/dev/null)"
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if [ -z "${pia_client_id}" ]; then
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pia_client_id="$(cat ${pia_client_id_file} 2>/dev/null)"
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if [[ -z "${pia_client_id}" ]]; then
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echo "Generating new client id for PIA"
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pia_client_id=$(new_client_id)
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fi
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@@ -33,26 +33,26 @@ port_assignment_url="http://209.222.18.222:2000/?client_id=$pia_client_id"
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pia_response=$(curl -s -f "$port_assignment_url")
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pia_curl_exit_code=$?
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if [ -z "$pia_response" ]; then
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if [[ -z "$pia_response" ]]; then
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echo "Port forwarding is already activated on this connection, has expired, or you are not connected to a PIA region that supports port forwarding"
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fi
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# Check for curl error (curl will fail on HTTP errors with -f flag)
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if [ $pia_curl_exit_code -ne 0 ]; then
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if [[ ${pia_curl_exit_code} -ne 0 ]]; then
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echo "curl encountered an error looking up new port: $pia_curl_exit_code"
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exit
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fi
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# Check for errors in PIA response
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error=$(echo "$pia_response" | grep -oE "\"error\".*\"")
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if [ ! -z "$error" ]; then
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if [[ ! -z "$error" ]]; then
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echo "PIA returned an error: $error"
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exit
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fi
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# Get new port, check if empty
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new_port=$(echo "$pia_response" | grep -oE "[0-9]+")
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if [ -z "$new_port" ]; then
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if [[ -z "$new_port" ]]; then
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echo "Could not find new port from PIA"
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exit
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fi
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@@ -65,7 +65,7 @@ echo "Got new port $new_port from PIA"
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# Check if transmission remote is set up with authentication
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auth_enabled=$(grep 'rpc-authentication-required\"' "$transmission_settings_file" \
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| grep -oE 'true|false')
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if [ "true" = "$auth_enabled" ]
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if [[ "true" = "$auth_enabled" ]]
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then
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echo "transmission auth required"
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myauth="--auth $transmission_username:$transmission_passwd"
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@@ -76,8 +76,8 @@ fi
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# get current listening port
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transmission_peer_port=$(transmission-remote $myauth -si | grep Listenport | grep -oE '[0-9]+')
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if [ "$new_port" != "$transmission_peer_port" ]; then
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if [ "true" = "$ENABLE_UFW" ]; then
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if [[ "$new_port" != "$transmission_peer_port" ]]; then
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if [[ "true" = "$ENABLE_UFW" ]]; then
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echo "Update UFW rules before changing port in Transmission"
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echo "denying access to $transmission_peer_port"
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@@ -87,11 +87,11 @@ if [ "$new_port" != "$transmission_peer_port" ]; then
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ufw allow "$new_port"
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fi
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transmission-remote $myauth -p "$new_port"
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transmission-remote ${myauth} -p "$new_port"
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echo "Checking port..."
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sleep 10
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transmission-remote $myauth -pt
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transmission-remote ${myauth} -pt
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else
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echo "No action needed, port hasn't changed"
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fi
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