dotfiles/scripts/proxy

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#!/usr/bin/env bash
# Allows easy manipulation of the proxy variables
function proxy_set_help {
echo "Usage: $0 set ADDRESS"
echo
echo "Arguments:"
echo " ADDRESS Address of the proxy"
echo
echo "Examples:"
echo ' eval "$(proxy set http://proxy.mycompany.com:3128/)"'
return 0
}
function proxy_set {
if [ -z $1 ]; then
proxy_set_help
return 1
fi
echo "export http_proxy='$1'"
echo "export https_proxy='$1'"
echo "export ftp_proxy='$1'"
echo "export rsync_proxy='$1'"
exit 0
}
function proxy_setup_help {
echo "Usage: $0 setup"
echo
echo "Examples:"
echo " proxy_set # Then eval the output"
return 0
}
function proxy_setup {
export no_proxy="localhost,127.0.0.1,localaddress,.localdomain.com"
if (( $# > 0 )); then
valid=$(echo $@ | sed -n 's/\([0-9]\{1,3\}.\)\{4\}:\([0-9]\+\)/&/p')
if [[ $valid != $@ ]]; then
>&2 echo "Invalid address"
return 1
fi
proxy_set "http://$1/"
return 0
fi
echo -n "User: "; read username
if [[ $username != "" ]]; then
echo -n "Password: "
read -es password
local pre="$username:$password@"
fi
echo -n "Server: "; read server
echo -n "Port: "; read port
proxy_set "http://$pre$server:$port/"
return 0
}
function proxy_off_help {
echo "Usage: $0 off"
echo
echo "Examples:"
echo ' eval $(proxy off)'
return 0
}
function proxy_off {
echo 'unset http_proxy'
echo 'unset https_proxy'
echo 'unset ftp_proxy'
echo 'unset rsync_proxy'
return 0
}
function proxy_help {
command="$1"
if [ -n "$command" ]; then
if type "proxy_${command}_help" &> /dev/null; then
shift
"proxy_${command}_help" "$@"
return $?
fi
fi
echo "Usage: $0 COMMAND"
echo
echo "Commands:"
echo " setup Interactively setup proxy"
echo " set Set proxy from address"
echo " off Turn off proxy"
echo " help Get help with commands"
return 0
}
# MAIN
command="$1"
shift
if type "proxy_$command" &> /dev/null; then
"proxy_$command" "$@"
else
proxy_help
fi