216 lines
6.8 KiB
Bash
Executable File
216 lines
6.8 KiB
Bash
Executable File
#!/bin/bash
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#
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# Bash utility for getting specific network info
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# Author: Jake Meyer
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# Github: https://github.com/jakewmeyer
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#
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currentVersion="1.6.0"
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configuredClient=""
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## This function determines which http get tool the system has installed and returns an error if there isnt one
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getConfiguredClient()
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{
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if command -v curl &>/dev/null ; then
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configuredClient="curl"
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elif command -v wget &>/dev/null ; then
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configuredClient="wget"
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elif command -v fetch &>/dev/null ; then
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configuredClient="fetch"
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else
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echo "Error: This tool reqires either curl, wget, or fetch to be installed."
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return 1
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fi
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}
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## Allows to call the users configured client without if statements everywhere
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httpGet()
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{
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case "$configuredClient" in
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curl) curl -A curl -s "$@";;
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wget) wget -qO- "$@";;
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fetch) fetch -o "...";;
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esac
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}
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# Parse arguments passed + help formatting
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usage() {
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echo "Usage: geo [flag]"
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echo " -w Returns WAN IP"
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echo " -l Returns LAN IP(s)"
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echo " -r Returns Router IP"
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echo " -d Returns DNS Nameserver"
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echo " -m Returns MAC address for interface. Ex. eth0"
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echo " -g Returns Current IP Geodata"
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echo "Custom Geo Output =>"
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echo "[all] [query] [city] [region] [country] [zip] [isp]"
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echo "Example: geo -a 8.8.8.8 -o city,zip,isp"
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echo " -o [options] Returns Specific Geodata"
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echo " -a [address] For specific ip in -s"
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echo " -v Returns Version"
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echo " -h Returns Help Screen"
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echo " -u Updates Bash-Snippets"
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exit
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}
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# Displays version number
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version() {
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echo $currentVersion;
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}
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# Fetches WAN ip address
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wan_search() {
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dig +short myip.opendns.com @resolver1.opendns.com
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}
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# Fetches current LAN ip address
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lan_search() {
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if [ "$(uname)" = "Darwin" ]; then
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ifconfig | grep -Eo 'inet (addr:)?([0-9]*\.){3}[0-9]*' | grep -Eo '([0-9]*\.){3}[0-9]*' | grep -v '127.0.0.1'
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elif [ "$(uname -s)" = "Linux" ]; then
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ip addr show | grep -Eo 'inet (addr:)?([0-9]*\.){3}[0-9]*' | grep -Eo '([0-9]*\.){3}[0-9]*' | grep -v '127.0.0.1'
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else
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echo "OS not supported"
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exit 1
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fi
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}
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# Fetches Router ip address
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router_search() {
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if [ "$(uname)" = "Darwin" ]; then
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netstat -rn | grep default | head -1 | awk '{print$2}'
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elif [ "$(uname -s)" = "Linux" ]; then
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ip route | grep ^default'\s'via | head -1 | awk '{print$3}'
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else
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echo "OS not supported"
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exit 1
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fi
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}
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# Fetches DNS nameserver
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dns_search() {
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if [ "$(uname)" = "Darwin" ]; then
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grep -i nameserver /etc/resolv.conf |head -n1|cut -d ' ' -f2
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elif [ "$(uname -s)" = "Linux" ]; then
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cat /etc/resolv.conf | grep -i ^nameserver | cut -d ' ' -f2
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else
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echo "OS not supported"
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exit 1
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fi
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}
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# Fetches MAC address of
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mac_search() {
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if [ "$(uname)" = "Darwin" ]; then
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ifconfig "$MAC" | grep -o -E '([[:xdigit:]]{1,2}:){5}[[:xdigit:]]{1,2}'
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elif [ "$(uname -s)" = "Linux" ]; then
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ip addr show "$MAC" | grep -o -E '([[:xdigit:]]{1,2}:){5}[[:xdigit:]]{1,2}' | grep -v ff:
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else
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echo "OS not supported"
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exit 1
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fi
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}
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# Fetches current geodata based on ip
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geodata_search() {
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httpGet "http://ip-api.com/line/?fields=query,city,region,country,zip,isp"
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}
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# Fetches specific geodata based on args
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specific_geo() {
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if [ "$OPTIONS" = "all" ]; then
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httpGet "http://ip-api.com/line/${ADDRESS}?fields=query,city,region,country,zip,isp"
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else
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httpGet "http://ip-api.com/line/${ADDRESS}?fields=${OPTIONS}"
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fi
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}
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update()
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{
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# Author: Alexander Epstein https://github.com/alexanderepstein
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# Update utility version 1.2.0
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# To test the tool enter in the defualt values that are in the examples for each variable
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repositoryName="Bash-Snippets" #Name of repostiory to be updated ex. Sandman-Lite
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githubUserName="alexanderepstein" #username that hosts the repostiory ex. alexanderepstein
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nameOfInstallFile="install.sh" # change this if the installer file has a different name be sure to include file extension if there is one
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latestVersion=$(httpGet https://api.github.com/repos/$githubUserName/$repositoryName/tags | grep -Eo '"name":.*?[^\\]",'| head -1 | grep -Eo "[0-9.]+" ) #always grabs the tag without the v option
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if [[ $currentVersion == "" || $repositoryName == "" || $githubUserName == "" || $nameOfInstallFile == "" ]];then
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echo "Error: update utility has not been configured correctly." >&2
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exit 1
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elif [[ $latestVersion == "" ]];then
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echo "Error: no active internet connection" >&2
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exit 1
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else
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if [[ "$latestVersion" != "$currentVersion" ]]; then
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echo "Version $latestVersion available"
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echo -n "Do you wish to update $repositoryName [Y/n]: "
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read -r answer
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if [[ "$answer" == "Y" || "$answer" == "y" ]] ;then
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cd ~ || { echo 'Update Failed' ; exit 1 ; }
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if [[ -d ~/$repositoryName ]]; then rm -r -f $repositoryName || { echo "Permissions Error: try running the update as sudo"; exit 1; } ; fi
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git clone "https://github.com/$githubUserName/$repositoryName" || { echo "Couldn't download latest version" ; exit 1; }
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cd $repositoryName || { echo 'Update Failed' ; exit 1 ;}
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git checkout "v$latestVersion" 2> /dev/null || git checkout "$latestVersion" 2> /dev/null || echo "Couldn't git checkout to stable release, updating to latest commit."
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chmod a+x install.sh #this might be necessary in your case but wasnt in mine.
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./$nameOfInstallFile "update" || exit 1
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cd ..
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rm -r -f $repositoryName || { echo "Permissions Error: update succesfull but cannot delete temp files located at ~/$repositoryName delete this directory with sudo"; exit 1; }
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else
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exit 1
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fi
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else
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echo "$repositoryName is already the latest version"
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fi
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fi
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}
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checkInternet()
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{
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echo "GET http://google.com HTTP/1.0\n\n" | nc google.com 80 > /dev/null 2>&1 # query google with a get request
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if [ $? -eq 0 ]; then #check if the output is 0, if so no errors have occured and we have connected to google successfully
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return 0
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else
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echo "Error: no active internet connection" >&2 #sent to stderr
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return 1
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fi
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}
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# Option parsing "controller"
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optspec="uwlrdm:go:a:vh*:"
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while getopts "$optspec" optchar
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do
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case "${optchar}" in
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w) wan_search ;;
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l) lan_search ;;
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r) router_search ;;
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d) dns_search ;;
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m) MAC=$OPTARG mac_search;;
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g) getConfiguredClient && checkInternet && geodata_search || exit 1 ;;
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a) ADDRESS=$OPTARG ;;
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o) getConfiguredClient && checkInternet && OPTIONS=$OPTARG specific_geo || exit 1 ;;
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v) version ;;
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h) usage ;;
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u) getConfiguredClient && checkInternet && update || exit 1 ;;
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*) usage ;;
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esac
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done
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# Makes geo command default to help screen for usability
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if [ $# -eq 0 ];
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then
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usage
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exit 0
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elif [[ $1 == "update" ]];then
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getConfiguredClient && checkInternet && update || exit 1
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elif [[ $1 == "help" ]];then
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usage
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exit 0
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fi
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