Script to start old iDrac 6/7 virtual console
The old consoles that requires Java…
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#!/bin/bash
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#
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# Purpose {{{
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# This script will try to start an iDrac 6/7 virtual console
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# 1. Ask for an host if not given with the option.
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# 2. Ask for a user if not given with the option.
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# 3. Ask for the password.
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#
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# Inspired from : https://gist.github.com/xbb/4fd651c2493ad9284dbcb827dc8886d6
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#
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# 2023-02-15
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# }}}
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# Flags {{{
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## Exit on error {{{
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set -o errexit
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## }}}
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## Exit on unset var {{{
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### Use "${VARNAME-}" to test a var that may not have been set
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set -o nounset
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## }}}
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## Pipeline command is treated as failed {{{
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### Not available in POSIX sh − https://github.com/koalaman/shellcheck/wiki/SC3040
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#set -o pipefail
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## }}}
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## Help with debugging {{{
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### Call the script by prefixing it with "TRACE=1 ./script.sh"
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if [ "${TRACE-0}" -eq 1 ]; then set -o xtrace; fi
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## }}}
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# }}}
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# Vars {{{
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PROGNAME=$(basename "${0}"); readonly PROGNAME
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PROGDIR=$(readlink --canonicalize-missing $(dirname "${0}")); readonly PROGDIR
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ARGS="${*}"; readonly ARGS
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readonly NBARGS="${#}"
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[ -z "${DEBUG-}" ] && DEBUG=1
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## Export DEBUG for sub-script
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export DEBUG
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## Default values for some vars
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readonly IDRAC_USERNAME_DEFAULT="root"
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readonly IDRAC_PORT_DEFAULT="443"
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readonly JAVA_DISABLE_ALGO_DEFAULT="SSLv3, RC4, DES, MD5withRSA, DH keySize < 1024, EC keySize < 224, anon, NULL, include jdk.disabled.namedCurves"
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readonly JAVA_SECURITY_FILENAME="idrac.java.security"
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readonly TEMP_DIR_BASE="/tmp"
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## Colors
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readonly PURPLE='\033[1;35m'
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readonly RED='\033[0;31m'
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readonly RESET='\033[0m'
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readonly COLOR_DEBUG="${PURPLE}"
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# }}}
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usage() { # {{{
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cat <<- HELP
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usage: $PROGNAME [-d|-h] [--user idrac_username] [--host idrac.hostname] [--port port.number] [--temp /path/to/temp/directory]
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Try to start an iDrac 6/7 virtual console with given informations.
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The password will always be asked and not displayed.
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EXAMPLES :
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- Start the script and wait for prompt to enter informations
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${PROGNAME}
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- Start virtual console of a given host
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${PROGNAME} --host "oob-myserver.domain.tld"
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- Start virtual console with SSH Port forwarding
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${PROGNAME} --host "localhost:7200"
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- Use specific username
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${PROGNAME} --user "admin"
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- Store downloaded files and informations in a specific temp directory
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${PROGNAME} --temp /tmp/my.idrac.temp.dir
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OPTIONS :
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-d,--debug
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Enable debug messages.
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-h,--help
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Print this help message.
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--host
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Define the iDrac host to connect.
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Fallback: It will be asked to the user.
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-p,--port
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Define the iDrac port to use.
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The script will try to parse the given value of hostname and extract a port number
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Fallback: It will be asked to the user.
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Default : ${IDRAC_PORT_DEFAULT}
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-u,--user
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Define the iDrac username.
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Fallback: It will be asked to the user.
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Default : ${IDRAC_USERNAME_DEFAULT}
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--temp,--temp-dir,--temp-directory
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Define the temp directoy to store downloaded files and informations.
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Default : ${TEMP_DIR_BASE}/idrac.given_hostname
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--java-disable-algo
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Override global java security settings.
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To allow old console to work on new java environment.
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Default : ${JAVA_DISABLE_ALGO_DEFAULT}
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For more informations, see : https://gist.github.com/xbb/4fd651c2493ad9284dbcb827dc8886d6?permalink_comment_id=4006481#gistcomment-4006481
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HELP
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}
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# }}}
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debug_message() { # {{{
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local_debug_message="${1}"
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## Print message if DEBUG is enable (=0)
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[ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6b\e[m\n' "DEBUG − ${PROGNAME} : ${local_debug_message}"
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unset local_debug_message
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return 0
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}
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# }}}
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error_message() { # {{{
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local_error_message="${1}"
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local_error_code="${2}"
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## Print message
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printf '%b\n' "ERROR − ${PROGNAME} : ${RED}${local_error_message}${RESET}" >&2
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unset local_error_message
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exit "${local_error_code:=66}"
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}
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# }}}
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define_vars() { # {{{
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## If idrac_host_temp wasn't defined (argument) {{{
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if [ -z "${idrac_host_temp-}" ]; then
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### Ask the user to enter a username
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printf -- '%b' 'Enter iDrac host (eg. "oob-myserver.domain.tld", "localhost:7200"…): '
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read -r idrac_host_temp
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fi
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## }}}
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## If idrac_host_temp is still empty {{{
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if [ -z "${idrac_host_temp-}" ]; then
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error_message "iDrac host can't be empty, please check your input or use --host option. For more informations, see the help message (--help)." 11
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fi
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## }}}
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## If idrac_host_temp is still empty {{{
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if [ -z "${idrac_host_temp-}" ]; then
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error_message "iDrac host can't be empty, please check your input or use --host option. For more informations, see the help message (--help)." 11
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fi
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## }}}
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## If idrac_host_temp contains a port number {{{
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if printf '%b' "${idrac_host_temp}" | awk 'BEGIN { FS = ":" } ; /^[a-zA-Z]+.*:[0-9]+$/' >/dev/null; then
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### Extract hostname and port number
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idrac_host=$(printf '%b' "${idrac_host_temp}" | awk 'BEGIN { FS = ":" } ; /^[a-zA-Z]+.*:[0-9]+$/ { print $1 }')
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idrac_port=$(printf '%b' "${idrac_host_temp}" | awk 'BEGIN { FS = ":" } ; /^[a-zA-Z]+.*:[0-9]+$/ { print $2 }')
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else
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### Simply use idrac_host_temp as hostname
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idrac_host="${idrac_host_temp}"
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fi
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## }}}
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## If idrac_username wasn't defined (argument) {{{
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if [ -z "${idrac_username-}" ]; then
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### Ask the user to enter a username
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printf -- '%b' "Enter iDrac username (default ${RED}${IDRAC_USERNAME_DEFAULT}${RESET}): "
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read -r idrac_username
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fi
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## }}}
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## If idrac_username is still empty {{{
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if [ -z "${idrac_username-}" ]; then
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### Use default value
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readonly idrac_username="${IDRAC_USERNAME_DEFAULT}"
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fi
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## }}}
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## If idrac_port wasn't defined (argument or by idrac_host_temp) {{{
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if [ -z "${idrac_port-}" ]; then
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### Ask the user to enter a port number
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printf -- '%b' "Enter iDrac port (default ${RED}${IDRAC_PORT_DEFAULT}${RESET}): "
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read -r idrac_port
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fi
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## }}}
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## If idrac_port is still empty {{{
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if [ -z "${idrac_port-}" ]; then
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idrac_port="${IDRAC_PORT_DEFAULT}"
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fi
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## }}}
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## Ask for idrac_password {{{
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printf -- '%b' "Enter iDrac password (it won't be displayed): "
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read -r -s idrac_password
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printf -- '%b\n' ""
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## }}}
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## If idrac_password is empty, ask again {{{
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if [ -z "${idrac_password-}" ]; then
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printf -- '%b' "A password is required to connect iDrac host (it won't be displayed): "
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read -r -s idrac_password
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printf -- '%b\n' ""
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fi
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## }}}
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## If idrac_password is still empty {{{
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if [ -z "${idrac_password-}" ]; then
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error_message "iDrac password can't be empty, please check your input. For more informations, see the help message (--help)." 12
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fi
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## }}}
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## If java_disable_algo wasn't defined (argument) {{{
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if [ -z "${java_disable_algo-}" ]; then
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### Use default value
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readonly java_disable_algo="${JAVA_DISABLE_ALGO_DEFAULT}"
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fi
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## }}}
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## If temp_dir wasn't defined (argument) {{{
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if [ -z "${temp_dir-}" ]; then
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### Use default value
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readonly temp_dir="${TEMP_DIR_BASE}/idrac.${idrac_host}"
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fi
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## }}}
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}
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# }}}
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is_command_available() { # {{{
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local_command_available_cmd="${1}"
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debug_prefix="${2:-}"
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## Return False by default
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return_command_available="1"
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if [ "$(command -v ${local_command_available_cmd})" ]; then
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debug_message "${debug_prefix}is_command_available − \
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${RED}${local_command_available_cmd}${COLOR_DEBUG} seems present on this host."
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return_command_available="0"
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else
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debug_message "${debug_prefix}is_command_available − \
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${RED}${local_command_available_cmd}${COLOR_DEBUG} is not available on this host."
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return_command_available="1"
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fi
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unset local_command_available_cmd
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unset debug_prefix
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return "${return_command_available}"
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}
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# }}}
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is_file_empty() { # {{{
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local_file="${1}"
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debug_prefix="${2:-}"
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## File is empty by default
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return_is_file_empty="0"
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## Check if the file is empty
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if [ ! -s "${local_file}" ]; then
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return_is_file_empty="0"
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debug_message "${debug_prefix}is_file_empty − \
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The file ${RED}${local_file}${COLOR_DEBUG} is empty or doesn't exists."
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else
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return_is_file_empty="1"
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debug_message "${debug_prefix}is_file_empty − \
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The file ${RED}${local_file}${COLOR_DEBUG} exists and has a size greater than zero."
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fi
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unset local_file
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unset debug_prefix
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return "${return_is_file_empty}"
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}
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# }}}
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main() { # {{{
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debug_message "--- MAIN BEGIN"
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## If java command is not available {{{
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### Exit with error message
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is_command_available "java" "| " \
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|| error_message "No java command available. Please install a openjdk-*-jre package with your package manager." 01
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## }}}
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## If wget command is not available {{{
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### Exit with error message
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is_command_available "wget" "| " \
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|| error_message "No wget command available. Please install =>wget<= package with your package manager." 02
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## }}}
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## Define all vars
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define_vars
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debug_message "| Define vars"
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debug_message "| Given informations are :
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idrac_host: ${RED}${idrac_host}${COLOR_DEBUG}
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idrac_port: ${RED}${idrac_port}${COLOR_DEBUG}
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idrac_username: ${RED}${idrac_username}${COLOR_DEBUG}
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idrac_password: ${RED}HIDDEN${COLOR_DEBUG}
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temp_dir: ${RED}${temp_dir}${COLOR_DEBUG}"
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## Create and move to temp directory
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debug_message "| Create and move to temp directory (${RED}${temp_dir}${COLOR_DEBUG})."
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mkdir --parents -- "${temp_dir}"
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cd -- "${temp_dir}" || error_message "Can't move to temp directory (${temp_dir})." 21
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## Set Java security parameters
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debug_message "| Set java security parameters (to ${RED}${JAVA_SECURITY_FILENAME}${COLOR_DEBUG} file)."
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true > "${JAVA_SECURITY_FILENAME}"
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printf '%b\n' "jdk.tls.disabledAlgorithms=${JAVA_DISABLE_ALGO_DEFAULT}" >> "${JAVA_SECURITY_FILENAME}"
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## Try to download main jar file from idrac host
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avctkmv_filename="avctKVM.jar"
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avctkvm_url="https://${idrac_host}:${idrac_port}/software/${avctkmv_filename}"
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debug_message "| Try to download ${RED}${avctkmv_filename}${COLOR_DEBUG} file from URL (${RED}${avctkvm_url}${COLOR_DEBUG})."
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wget --timestamping --no-check-certificate --quiet -- "${avctkvm_url}"
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is_file_empty "${avctkmv_filename}" "| " \
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&& error_message "Downloaded ${avctkmv_filename} file is empty (from ${avctkvm_url} URL)." 22
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## Librairies
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## TODO? Download avctKVMIOLinux64.jar and avctVMLinux64.jar files to extract librairies (for keyboard…).
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## Try to start iDrac console with java
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printf '%b\n' "Try to start ${RED}${idrac_host}:${idrac_port}${RESET} virtual console with user (${RED}${idrac_username}${RESET}) and given password."
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java -cp "${avctkmv_filename}" -Djava.security.properties=idrac.java.security -Djava.library.path=./lib com.avocent.idrac.kvm.Main ip="${idrac_host}" kmport=5900 vport=5900 user="${idrac_username}" passwd="${idrac_password}" apcp=1 version=2 vmprivilege=true "helpurl=https://${idrac_host}:${idrac_port}/help/contents.html"
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cd -- - >/dev/null || error_message "Can't move to previous directory (before ${temp_dir})." 23
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debug_message "--- MAIN END"
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}
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# }}}
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# Manage arguments # {{{
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# This code can't be in a function due to argument management
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if [ ! "${NBARGS}" -eq "0" ]; then
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manage_arg="0"
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## If the first argument ask for help (h|help|-h|-help|-*h|-*help) {{{
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if printf -- '%s' "${1-}" | grep --quiet --extended-regexp -- "^-*h(elp)?$"; then
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usage
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exit 0
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fi
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## }}}
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## If the first argument is not an option
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if ! printf -- '%s' "${1}" | grep --quiet --extended-regexp -- "^-+";
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then
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## Print help message and exit
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printf '%b\n' "${RED}Invalid option: ${1}${RESET}"
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printf '%b\n' "---"
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usage
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exit 1
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fi
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# Parse all options (start with a "-") one by one
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while printf -- '%s' "${1-}" | grep --quiet --extended-regexp -- "^-+"; do
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case "${1}" in
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-d|--debug ) ## debug
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DEBUG=0
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debug_message "--- Manage argument BEGIN"
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;;
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--host ) ## Define idrac_host_temp with given arg
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## Move to the next argument
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shift
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## Define var
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readonly idrac_host_temp="${1}"
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;;
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-p,--port ) ## Define idrac_port with given arg
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## Move to the next argument
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shift
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## Define var
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readonly idrac_port="${1}"
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;;
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-u|--user ) ## Define idrac_username with given arg
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## Move to the next argument
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shift
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## Define var
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readonly idrac_username="${1}"
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;;
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--temp,--temp-dir,--temp-directory ) ## Define temp_dir with given arg
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## Move to the next argument
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shift
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## Define var
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readonly temp_dir="${1}"
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;;
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--java-disable-algo ) ## Define java_disable_algo with given arg
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## Move to the next argument
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shift
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## Define var
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readonly java_disable_algo="${1}"
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;;
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* ) ## unknow option
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printf '%b\n' "${RED}Invalid option: ${1}${RESET}"
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printf '%b\n' "---"
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usage
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exit 1
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;;
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esac
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debug_message "| ${RED}${1}${COLOR_DEBUG} option managed."
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## Move to the next argument
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shift
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manage_arg=$((manage_arg+1))
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done
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debug_message "| ${RED}${manage_arg}${COLOR_DEBUG} argument(s) successfully managed."
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else
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debug_message "| No arguments/options to manage."
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fi
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debug_message "--- Manage argument END"
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# }}}
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main
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exit 0
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