mirror of
https://github.com/vdm-io/dynamic-ip.git
synced 2024-11-11 07:30:55 +00:00
188 lines
7.2 KiB
Bash
Executable File
188 lines
7.2 KiB
Bash
Executable File
#!/bin/bash
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#/--------------------------------------------------------------------------------------------------------| www.vdm.io |------/
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# __ __ _ _____ _ _ __ __ _ _ _
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# \ \ / / | | | __ \ | | | | | \/ | | | | | | |
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# \ \ / /_ _ ___| |_ | | | | _____ _____| | ___ _ __ _ __ ___ ___ _ __ | |_ | \ / | ___| |_| |__ ___ __| |
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# \ \/ / _` / __| __| | | | |/ _ \ \ / / _ \ |/ _ \| '_ \| '_ ` _ \ / _ \ '_ \| __| | |\/| |/ _ \ __| '_ \ / _ \ / _` |
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# \ / (_| \__ \ |_ | |__| | __/\ V / __/ | (_) | |_) | | | | | | __/ | | | |_ | | | | __/ |_| | | | (_) | (_| |
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# \/ \__,_|___/\__| |_____/ \___| \_/ \___|_|\___/| .__/|_| |_| |_|\___|_| |_|\__| |_| |_|\___|\__|_| |_|\___/ \__,_|
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# | |
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# |_|
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#/-------------------------------------------------------------------------------------------------------------------------------/
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#
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# @version 1.0.0
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# @build 21st July, 2017
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# @package Dynamic IP
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# @author Llewellyn van der Merwe <https://github.com/Llewellynvdm>
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# @copyright Copyright (C) 2015. All Rights Reserved
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# @license GNU/GPL Version 2 or later - http://www.gnu.org/licenses/gpl-2.0.html
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#
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#/-----------------------------------------------------------------------------------------------------------------------------/
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############################ GLOBAL ##########################
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ACTION="setip"
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######### DUE TO NOT BEING ABLE TO INCLUDE DYNAMIC ###########
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#################### UPDATE TO YOUR NEEDS ####################
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##############################################################
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############## ##########
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############## CONFIG ##########
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############## ##########
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##############################################################
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REPOURL="https://raw.githubusercontent.com/vdm-io/dynamic-ip/master/"
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VDMIPSERVER="https://www.vdm.io/$ACTION"
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##############################################################
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############## ##########
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############## MAIN ##########
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############## ##########
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##############################################################
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function main () {
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## set time for this run
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echoTweak "$ACTION on $Datetimenow"
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echo "started"
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## make sure cron is set
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setCron
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## get the local server key
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getLocalKey
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## check access (set if not ready)
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setAccessToken
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## update IP
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setIP
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}
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##############################################################
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############## ##########
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############## DEFAULTS ##########
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############## ##########
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##############################################################
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Datetimenow=$(TZ=":ZULU" date +"%m/%d/%Y @ %R (UTC)" )
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VDMUSER=$(whoami)
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VDMHOME=~/
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VDMSCRIPT="${REPOURL}$ACTION.sh"
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VDMSERVERKEY=''
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TRUE=1
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##############################################################
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############## ##########
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############## FUNCTIONS ##########
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############## ##########
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##############################################################
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# little repeater
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function repeat () {
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head -c $1 < /dev/zero | tr '\0' $2
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}
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# little echo tweak
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function echoTweak () {
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echoMessage="$1"
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mainlen="$2"
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characters="$3"
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if [ $# -lt 2 ]
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then
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mainlen=60
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fi
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if [ $# -lt 3 ]
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then
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characters='\056'
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fi
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chrlen="${#echoMessage}"
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increaseBy=$((mainlen-chrlen))
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tweaked=$(repeat "$increaseBy" "$characters")
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echo -n "$echoMessage$tweaked"
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}
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# Set cronjob without removing existing
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function setCron () {
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if [ -f $VDMHOME/$ACTION.cron ]; then
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echoTweak "Crontab already configured for updates..."
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echo "Skipping"
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else
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echoTweak "Adding crontab entry for continued updates..."
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# check if user crontab is set
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currentCron=$(crontab -u $VDMUSER -l 2>/dev/null)
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if [[ -z "${currentCron// }" ]]; then
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currentCron="# VDM crontab settings"
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echo "$currentCron" > $VDMHOME/$ACTION.cron
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else
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echo "$currentCron" > $VDMHOME/$ACTION.cron
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fi
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# check if the MAILTO is already set
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if [[ $currentCron != *"MAILTO"* ]]; then
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echo "MAILTO=\"\"" >> $VDMHOME/$ACTION.cron
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echo "" >> $VDMHOME/$ACTION.cron
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fi
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# check if the @reboot curl -s $VDMSCRIPT | sudo bash is already set
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if [[ $currentCron != *"@reboot curl -s $VDMSCRIPT | bash"* ]]; then
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echo "@reboot curl -s $VDMSCRIPT | bash" >> $VDMHOME/$ACTION.cron
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fi
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# check if the @reboot curl -s $VDMSCRIPT | sudo bash is already set
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if [[ $currentCron != *"*/5 * * * * curl -s $VDMSCRIPT | bash"* ]]; then
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echo "*/5 * * * * curl -s $VDMSCRIPT | bash" >> $VDMHOME/$ACTION.cron
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fi
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# set the user cron
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crontab -u $VDMUSER $VDMHOME/$ACTION.cron
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echo "Done"
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fi
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}
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function getKey () {
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# simple basic random
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echo $(tr -dc 'A-HJ-NP-Za-km-z2-9' < /dev/urandom | dd bs=128 count=1 status=none)
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}
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function getLocalKey () {
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# Set update key
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if [ -f $VDMHOME/$ACTION.key ]; then
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echoTweak "Update key already set!"
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echo "continue"
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else
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echoTweak "Setting the update key..."
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echo $(getKey) > $VDMHOME/$ACTION.key
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echo "Done"
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fi
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# Get update key
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VDMSERVERKEY=$(<"$VDMHOME/$ACTION.key")
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}
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function setAccessToken () {
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# check if vdm access was set
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accessToke=$(curl -H "User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.89 Safari/537.36" -H "VDM-KEY: $VDMSERVERKEY" --silent $VDMIPSERVER)
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if [[ "$accessToke" != "$TRUE" ]]; then
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read -s -p "Please enter your VDM access key: " vdmAccessKey
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echo ""
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echoTweak "One moment while we set your access to the VDM system..."
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resultAccess=$(curl -H "User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.89 Safari/537.36" -H "VDM-TRUST: $vdmAccessKey" -H "VDM-KEY: $VDMSERVERKEY" --silent $VDMIPSERVER)
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if [[ "$resultAccess" != "$TRUE" ]]; then
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echo "YOUR VDM ACCESS KEY IS INCORRECT! >> $resultAccess"
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exit 1
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fi
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echo "Done"
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else
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echo "Access granted to the VDM system."
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fi
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}
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function setIP () {
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# get this server IP
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IPNOW="$(dig +short myip.opendns.com @resolver1.opendns.com)"
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# store the IP in the HOSTNAME file
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echoTweak "Setting/Update the Dynamic IP..."
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resultUpdate=$(curl -H "User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.89 Safari/537.36" -H "VDM-KEY: $VDMSERVERKEY" -H "VDM-IP: $IPNOW" --silent $VDMIPSERVER)
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if [[ "$resultUpdate" != "$TRUE" ]]; then
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echo "YOUR SERVER KEY IS INCORRECT! >> $resultUpdate"
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exit 1
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fi
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echo "Done"
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}
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##############################################################
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############## ##########
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############## MAIN ##########
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############## ##########
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##############################################################
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main
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