scripts/xssh at master · fbnmtz/scripts · GitHub

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#!/usr/bin/env bash
#
# ############################################################################
# Project: scripts (none)
# File...: xssh
# Created: Thursday, 2025/01/23 - 18:02:34
# Author.: fbnmtz, (fabiano.matoz@gmail.com)
# ~·~·~·~·~·~·~·~·~·~·~·~·~~·~·~·~·~·~·~·~·~·~·~·~·~~·~·~·~·~·~~·~·~·~·~·~·~·~
# Last Modified: Monday, 2026/09/14 - 21:48:07
# Modified By..: @fbnmtz, (fabiano.matoz@gmail.com)
# ~·~·~·~·~·~·~·~·~·~·~·~·~~·~·~·~·~·~·~·~·~·~·~·~·~~·~·~·~·~·~~·~·~·~·~·~·~·~
# Version: 1.0.5.273
# ~·~·~·~·~·~·~·~·~·~·~·~·~~·~·~·~·~·~·~·~·~·~·~·~·~~·~·~·~·~·~~·~·~·~·~·~·~·~
# Description:
#  >
# ############################################################################
# HISTORY:
#

# D=3
# source "$xSHELL_INIT"
xs_init
xs_use args colors
xs_require ssh ssh-keyscan ssh-keygen cut mbat
# gparted dig ls mcedit

know_hosts="~/.ssh/known_hosts"

xs_arg --id -u,--user     --desc "login with <user>"                --var user+r
xs_arg --id -p,--password --desc "login with <password>"            --var password+r
xs_arg --id -H,--host     --desc "<host> to connect "               --var host+r
xs_arg --id -g,--generate --desc "generate a new ssh-key pair"      --var name+r,comment+r,password_size+o
xs_arg --id -k,--known    --desc "show '$know_hosts'"
xs_arg --id -r,--remove   --desc "remove <host> form '$know_hosts'" --var host+r
xs_arg --id -t,--temp     --desc "temp session. Dont save host on '$know_hosts'"

xs_arg --header "ssh tools"
xs_arg --footer "   * generated keys stored on '$APP_HOME'"

xs_run --xrequire-one --xversionrc --xapp-data "$@"

__known(){ D=0; mbat ~/.ssh/known_hosts; exit 0; }
__remove(){ ssh-keygen -R \"$host\" -f ~/.ssh/known_hosts; exit 0; }
__generate(){
    local now generated_pass sshkey_name sshkey_pass
    # needed tools
    xs_require cat tr fold head date

    # load function lcase (lower case)
    xs_func --local lcase

    # no password_size? set default value
    [ -z "$password_size" ] && password_size=65

    # current date
    now=$(lcase $(date "+%A-%Y%m%d-%H%M%S"))

    # generate a random password
    generated_pass=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9*@$.!\#' | fold -w "$password_size" | head -n 1)

    # set name's
    sshkey_name="$APP_HOME/$name---gen-$now-t-ed25519-ssh-key"
    sshkey_pass="$sshkey_name-pass"

    # save password backup file
    echo -n "$generated_pass" > "$sshkey_pass"

    # generate ssh key with provided data
    ssh-keygen -t ed25519 -C "$comment" -N "$generated_pass" -f "$sshkey_name"

    # show key to user
    mbat "$sshkey_name"

    exit 0;
}

xs_case k __known
xs_case r __remove
xs_case g __generate

# Extrai o usuário e o IP do parâmetro
USER_IP=$1

if [ -n "$user" ] && [ -n "$host" ]; then
    ssh_cmd="ssh $user@$host"
    IP=$host
else
    IP=$(echo "$USER_IP" | cut -d'@' -f2)
    ssh_cmd="ssh $USER_IP"
fi

# Verifica se o host está online e adiciona o IP ao known_hosts
if ssh-keyscan -H "$IP" >> ~/.ssh/known_hosts; then
    # Conecta via SSH
    $ssh_cmd

    # Remove o IP do known_hosts após encerrar a conexão SSH
    xs_case t "ssh-keygen -R '$IP'"
else
    echo -e "${BGRED} Error! Host $IP unreachable. ${RESET}" >&2
    exit 2
fi