mirror of https://github.com/parazyd/arm-sdk.git
858 lines
19 KiB
Bash
Executable File
858 lines
19 KiB
Bash
Executable File
#!/usr/bin/env zsh
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## -*- origami-fold-style: triple-braces -*-
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#
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# Zuper - Zsh Ultimate Programmer's Extensions Refurbished
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#
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# Copyright (C) 2015 Dyne.org Foundation
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#
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# Zuper is designed, written and maintained by Denis Roio <jaromil@dyne.org>
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#
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# This source code is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This source code is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# Please refer to the GNU Public License for more details.
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#
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# You should have received a copy of the GNU Public License along with
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# this source code; if not, write to:
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# Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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##########################
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typeset -aU vars
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typeset -aU arrs
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typeset -aU maps
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vars=(DEBUG QUIET LOG)
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arrs=(req freq)
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vars+=(zuper_version)
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zuper_version=0.2
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zmodload zsh/system
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zmodload zsh/net/tcp
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# {{{ Messaging
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# Messaging function with pretty coloring
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autoload colors
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colors
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vars+=(last_act last_func last_notice)
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function _msg() {
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local msg="$2"
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command -v gettext 1>/dev/null 2>/dev/null && msg="$(gettext -s "$2")"
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for i in $(seq 3 ${#});
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do
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msg=${(S)msg//::$(($i - 2))*::/$*[$i]}
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done
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local command="print -P"
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local progname="$fg[magenta]${PROGRAM##*/}$reset_color"
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local message="$fg_bold[normal]$fg_no_bold[normal]$msg$reset_color"
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local -i returncode
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case "$1" in
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inline)
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command+=" -n"; pchars=" > "; pcolor="yellow"
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;;
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message)
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last_act="$msg"
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pchars=" . "; pcolor="white"; message="$fg_no_bold[$pcolor]$msg$reset_color"
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;;
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verbose)
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last_func="$msg"
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pchars="[D]"; pcolor="blue"
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;;
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success)
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last_notice="$msg"
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pchars="(*)"; pcolor="green"; message="$fg_no_bold[$pcolor]$msg$reset_color"
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;;
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warning)
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pchars="[W]"; pcolor="yellow"; message="$fg_no_bold[$pcolor]$msg$reset_color"
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;;
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failure)
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pchars="[E]"; pcolor="red"; message="$fg_no_bold[$pcolor]$msg$reset_color"
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returncode=1
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;;
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print)
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progname=""
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;;
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*)
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pchars="[F]"; pcolor="red"
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message="Developer oops! Usage: _msg MESSAGE_TYPE \"MESSAGE_CONTENT\""
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returncode=127
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zerr
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;;
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esac
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${=command} "${progname} $fg_bold[$pcolor]$pchars$reset_color ${message}$color[reset_color]" >&2
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# write the log if its configured
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[[ "$LOG" = "" ]] || {
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touch $LOG || return $?
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${=command} "${progname} $fg_bold[$pcolor]$pchars$reset_color ${message}$color[reset_color]" >> $LOG
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}
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return $returncode
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}
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function _message say act() {
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local notice="message"
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[[ "$1" = "-n" ]] && shift && notice="inline"
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[[ $QUIET = 1 ]] || _msg "$notice" $@
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return 0
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}
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function _verbose xxx func() {
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[[ $DEBUG = 1 ]] && _msg verbose $@
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return 0
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}
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function _success yes notice() {
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[[ $QUIET = 1 ]] || _msg success $@
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return 0
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}
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function _warning no warn warning() {
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[[ $QUIET = 1 ]] || _msg warning $@
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return 0
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}
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function _failure fatal die error() {
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# typeset -i exitcode=${exitv:-1}
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[[ $QUIET = 1 ]] || _msg failure $@
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return 1
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}
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function _print() {
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[[ $QUIET = 1 ]] || _msg print $@
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return 0
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}
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# }}} Messaging
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# {{{ Debugging
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fn() {
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fun="$@"
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req=()
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freq=()
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func "$fun"
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}
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zerr() {
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error "error in: ${fun:-$last_notice}"
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[[ "$last_func" = "" ]] || warn "called in: $last_func"
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[[ "$last_act" = "" ]] || warn "called in: $last_act"
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[[ "$last_notice" = "" ]] || warn "called in: $last_notice"
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# [[ "$fun" = "" ]] || warn "called in: $fun"
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TRAPEXIT() {
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error "error reported, operation aborted."
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}
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return 1
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}
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ckreq reqck() {
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err=0
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for v in $req; do
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[[ "${(P)v}" = "" ]] && {
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warn "${fun[(ws: :)1]}(): required setting is blank: $v"
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err=1
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}
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done
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[[ $err = 1 ]] && return $err
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for f in $freq; do
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# exists and has size greater than zero
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[[ -s $f ]] || {
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warn "required file empty: $f"
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err=1
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}
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done
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[[ $err == 1 ]] && zerr
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return $err
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}
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zdump() {
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fn zdump
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[[ ${#vars} -gt 0 ]] && {
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print "Global variables:"
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for _v in $vars; do
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print " $_v = \t ${(P)_v}"
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done
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}
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[[ ${#arrs} -gt 0 ]] && {
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print "Global arrays:"
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for _a in $arrs; do
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print " $_a \t ( ${(P)_a} )"
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done
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}
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[[ ${#maps} -gt 0 ]] && {
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print "Global maps:"
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for _m in $maps; do
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print " $_m [key] \t ( ${(Pk)_m} )"
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print " $_m [val] \t ( ${(Pv)_m} )"
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done
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}
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}
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# handy wrappers for throw/catch execution of blocks where we need the
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# program to exit on any error (non-zero) returned by any function
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throw() { function TRAPZERR() { zerr; return 1 } }
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catch() { function TRAPZERR() { } }
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##########################
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# Endgame handling
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arrs+=(destruens)
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destruens=()
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# Trap functions for the endgame event
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TRAPINT() { endgame INT; return $? }
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# TRAPEXIT() { endgame EXIT; return $? }
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TRAPHUP() { endgame HUP; return $? }
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TRAPQUIT() { endgame QUIT; return $? }
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TRAPABRT() { endgame ABORT; return $? }
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TRAPKILL() { endgame KILL; return $? }
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# TRAPPIPE() { endgame PIPE; return $? }
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TRAPTERM() { endgame TERM; return $? }
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TRAPSTOP() { endgame STOP; return $? }
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# TRAPZERR() { func "function returns non-zero." }
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endgame() {
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fn "endgame $*"
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# execute all no matter what
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TRAPZERR() { }
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# process registered destructors
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for d in $destruens; do
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fn "destructor: $d"
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$d
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done
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return 0
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}
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# Register endgame() to be called at exit.
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# unlike TRAPEXIT, the zshexit() hook is not called when functions exit.
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zshexit() { endgame EXIT; return $? }
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# }}} Debugging
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# {{{ Tempfiles
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##########################
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# Temp file handling
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vars+=(ztmpfile)
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# ztmp() fills in $ztmpfile global. Caller must copy that variable as
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# it will be overwritten at every call.
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ztmp() {
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fn ztmp
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ztmpfile=`mktemp`
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tmpfiles+=($ztmpfile)
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}
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# All tempfiles are freed in endgame()
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_ztmp_destructor() {
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fn _ztmp_destructor
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for f in $tmpfiles; do
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rm -f "$f"
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done
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tmpfiles=()
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}
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arrs+=(tmpfiles)
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destruens+=(_ztmp_destructor)
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# }}} Tempfiles
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# {{{ Strings
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# tokenizer, works only with one char length delimiters
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# saves everything in global array tok=()
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arrs+=(tok)
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strtok() {
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fn "strtok $*"
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_string="$1"
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_delim="$2"
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req=(_string _delim)
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ckreq || return $?
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tok=()
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f=0
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c=0
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for c in {1..${#_string}}; do
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if [[ "${_string[(e)$c]}" == "$_delim" ]]; then
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# check if not empty
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t=${_string[(e)$(($f + 1)),$(($c - 1))]}
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[[ "$t" == "" ]] || tok+=($t)
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# save last found
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f=$c
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fi
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done
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# add last token
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t=${_string[(e)$(($f + 1)),$c]}
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[[ "$t" == "" ]] || tok+=($t)
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}
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# TODO: move in here some helpers
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# }}} Strings
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# {{{ Networking
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# This is only tested on GNU/Linux and makes use of sysfs
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# index of all network devices
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arrs+=(net_devices)
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# map of ipv4 assigned addresses: [dev addr]
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maps+=(net_ip4_addr)
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# map of ipv6 assigned addresses: [dev addr]
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maps+=(net_ip6_addr)
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# map of dhcp served ipv4
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maps+=(ip4dhcps)
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# map of dhcp served ipv6
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maps+=(ip6dhcps)
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# map of external ipv4 addresses
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maps+=(net_ip4_exit)
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# map of internal ipv6 addresses
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# maps+=(ip6exits)
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net.scan_devices() {
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for i in `find /sys/devices/ -name net`; do
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dev=`ls $i`
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# skip the loopback device
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[[ "$dev" = "lo" ]] && continue
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net_devices+=($dev)
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done
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# return error if no device found
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if [[ ${#net_devices} = 0 ]]; then return 1
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else return 0; fi
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}
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net.scan_addresses() {
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[[ ${#net_devices} = 0 ]] && {
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error "No network device found."
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func "Have you ran net.scan_devices() first?"
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return 1
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}
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for dev in ${net_devices}; do
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# check ipv4 connections
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conn=`ip addr show $dev | awk '/inet / {print $2}'`
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[[ "$conn" = "" ]] || {
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net_ip4_addr+=($dev $conn) }
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# check ipv6 connections
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conn=`ip addr show $dev | awk '/inet6/ {print $2}'`
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[[ "$conn" = "" ]] || {
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net_ip6_addr+=($dev $conn) }
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done
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# list ipv4
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notice "${#net_ip4_addr} ipv4 connected devices found"
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for c in ${(k)net_ip4_addr}; do
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act " $c ${net_ip4_addr[$c]}"
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done
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# list ipv6
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notice "${#net_ip6_addr} ipv6 connected devices found"
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for c in ${(k)net_ip6_addr}; do
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act " $c ${net_ip6_addr[$c]}"
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done
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# find out network addresses
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return 0
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}
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net.scan_exits() {
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# just ipv4 for now, also we use curl to drive the call over the
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# specific interface, but if that wouldn't matter then rest.get is
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# better to avoid this dependency
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for dev in ${(k)net_ip4_addr}; do
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addr=`curl --silent --interface $dev https://api.ipify.org`
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if [[ "$?" != "0" ]]; then
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error "curl returns $?: $addr"
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else
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[[ "$addr" = "" ]] || {
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notice "$dev external ip: $addr"
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net_ip4_exit+=($dev $addr)
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}
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fi
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done
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for dev in ${(k)net_ip6_addr}; do
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addr=`curl --silent --ipv6 --interface $dev https://api.ipify.org`
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if [[ $? != 0 ]]; then
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error "curl returns $?: $addr"
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else
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[[ "$addr" = "" ]] || {
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notice "$dev external ip: $addr"
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net_ip4_exit+=($dev $addr)
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}
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fi
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done
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}
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# }}} Networking
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# {{{ Key/Value filesave
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# optional: define zkv=1 on source
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[[ "$zkv" = "" ]] || {
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##########################
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# Key/Value file storage using ZSh associative maps
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# load a map from a file
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# map must be already instantiated with typeset -A by called
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# name of map is defined inside the file
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function zkv.load() {
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fn "zkv-load $*"
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file=$1
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[[ "$file" = "" ]] && {
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error "zkv-open() missing argument: file-path"
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zerr
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return 1 }
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[[ -r "$file" ]] || {
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error "zkv-open() file not found $file"
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zerr
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return 1 }
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[[ -s "$file" ]] || {
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error "zkv-open() file is empty"
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zerr
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return 1 }
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source $file
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}
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# save a map in a file
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# $1 = name of the map associative array
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# $2 = full path to the file
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function zkv.save() {
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fn "zkv.save $*"
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_map=$1
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_path=$2
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[[ "$_path" = "" ]] && {
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error "zkv.save() missing argument: map-name path-to-file"
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zerr
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return 1
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}
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[[ -r $_path ]] && {
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func "zkv.close() overwriting $_path"
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func "backup turd left behind: ${_path}~"
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mv $_path $_path~
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}
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touch $_path
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# wondering about http://www.zsh.org/mla/users/2015/msg00286.html
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# meanwhile solved using a double array, wasting a full map memcpy
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_karr=(${(Pk)_map})
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_varr=(${(Pv)_map})
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_num="${#_karr}"
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for c in {1..$_num}; do
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# can also be cat here, however for speed we use builtins
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# switch to cat if compatibility is an issue
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sysread -o 1 <<EOF >> $_path
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$_map+=("${_karr[$c]}" "${(v)_varr[$c]}")
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EOF
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done
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func "$_num key/values stored in $_path"
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}
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}
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# }}} Key/Value filesave
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# {{{ Get/Set REST API
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########
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# Restful API client
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# there is a clear zsh optimization here in get/set kv
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# using zsh/tcp instead of spawning curl
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# and perhaps querying with one call using ?recursive
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vars+=(rest_reply_body rest_reply_header)
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maps+=(rest_header)
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function rest.put() {
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fn "rest.put $*"
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# $1 = hostname
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# $2 = port
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# $3 = path
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# value from stdin |
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# to check if the http service is running is up to the caller
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_host=${1} # ip address
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_port=${2}
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_path=${3}
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sysread _v
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req=(_host)
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ckreq || return $?
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if ztcp $_host $_port; then
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# TODO: work out various parsers, this one works with consul.io
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_fd=$REPLY
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# func "tcp open on fd $fd"
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cat <<EOF >& $_fd
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PUT ${_path} HTTP/1.1
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User-Agent: Zuper/$zuper_version
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Host: ${_host}:${_port}
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Accept: */*
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Content-Length: ${#_v}
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Content-Type: application/x-www-form-urlencoded
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EOF
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print -n "$_v" >& $_fd
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sysread -i $_fd _res
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# close connection
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ztcp -c $_fd
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[[ "$_res" =~ "true" ]] || {
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warn "failed PUT on restful key/value"
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warn "host: ${_host}"
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warn "port: ${_port}"
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warn "path: ${_path}"
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warn "value: $_v"
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print - "$_res"
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zerr
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return 1
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}
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else
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error "cannot connect to restful service: $_host:$_port"
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zerr
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return 1
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fi
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return 0
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}
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function rest.get() {
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fn "rest.get $*"
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_host=${1}
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_port=${2}
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_path=${3}
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req=(_host _port)
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ckreq || return $?
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ztcp $_host $_port || {
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zerr
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return 1
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}
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_fd=$REPLY
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# TODO: work out various parsers, this one works with consul.io
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cat <<EOF >& $_fd
|
|
GET ${_path} HTTP/1.1
|
|
User-Agent: Zuper/$zuper_version
|
|
Host: $_host:$_port
|
|
Accept: */*
|
|
|
|
EOF
|
|
|
|
# read header response
|
|
rest_reply=`sysread -i $_fd -o 1`
|
|
|
|
for i in "${(f)rest_reply}"; do
|
|
print $i | hexdump -C
|
|
# first line is the response code
|
|
|
|
[[ "$i" -regex-match "\x0d\x0a$" ]] && {
|
|
func BLANK
|
|
break }
|
|
|
|
# # save other lines in map for fast retrieval
|
|
# _field=${i[(ws@:@)1]}
|
|
# func "$_field - header field parsed"
|
|
# rest_header[$_field]="${i[(ws@:@)2]}"
|
|
|
|
# c=$(( $c + 1 ))
|
|
done
|
|
# rest_reply_header="${(f)$(cat <&$_fd)}"
|
|
|
|
func "${#rest_reply_header} bytes response header stored in rest_reply_header"
|
|
# | awk -F: '
|
|
#/"Value":/ { gsub(/"|}]/,"",$7) ; print $7 }' | base64 -d
|
|
|
|
# TODO: read content-length and use it here
|
|
|
|
rest_reply_body="${(f)$(sysread -i $_fd -o 1)}"
|
|
func "${#rest_reply_body} bytes response body stored in rest_reply_body"
|
|
|
|
# close connection
|
|
ztcp -c $_fd
|
|
|
|
return 0
|
|
|
|
}
|
|
|
|
|
|
# }}} Get/Set REST API
|
|
|
|
# {{{ Helpers
|
|
[[ "$helpers" = "" ]] || {
|
|
|
|
function helper.isfound isfound() {
|
|
command -v $1 1>/dev/null 2>/dev/null
|
|
return $?
|
|
}
|
|
|
|
# remote leading and trailing spaces in a string taken from stdin
|
|
function helper.trim trim() {
|
|
sed -e 's/^[[:space:]]*//g ; s/[[:space:]]*\$//g'
|
|
}
|
|
|
|
zmodload zsh/mapfile
|
|
# faster substitute for cat
|
|
function helper.printfile printfile() {
|
|
print ${mapfile[$1]}
|
|
}
|
|
|
|
# extract all emails found in a text from stdin
|
|
# outputs them one per line
|
|
function helper.extract-emails extract_emails() {
|
|
awk '{ for (i=1;i<=NF;i++)
|
|
if ( $i ~ /[[:alnum:]]@[[:alnum:]]/ ) {
|
|
gsub(/<|>|,/ , "" , $i); print $i } }'
|
|
}
|
|
|
|
|
|
zmodload zsh/regex
|
|
# takes a string as argument, returns success if is an email
|
|
function helper.isemail isemail() {
|
|
[[ "$1" -regex-match "\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,6}\b" ]] && return 0
|
|
|
|
return 1
|
|
}
|
|
|
|
# takes a numeric argument and prints out a human readable size
|
|
function helper.human-size human_size() {
|
|
[[ $1 -gt 0 ]] || {
|
|
error "human_size() called with invalid argument"
|
|
return 1
|
|
}
|
|
|
|
# we use the binary operation for speed
|
|
# shift right 10 is divide by 1024
|
|
|
|
# gigabytes
|
|
[[ $1 -gt 1073741824 ]] && {
|
|
print -n "$(( $1 >> 30 )) GB"
|
|
return 0
|
|
}
|
|
|
|
# megabytes
|
|
[[ $1 -gt 1048576 ]] && {
|
|
print -n "$(( $1 >> 20 )) MB"
|
|
return 0
|
|
}
|
|
# kilobytes
|
|
[[ $1 -gt 1024 ]] && {
|
|
print -n "$(( $1 >> 10 )) KB"
|
|
return 0
|
|
}
|
|
# bytes
|
|
print -n "$1 Bytes"
|
|
return 0
|
|
}
|
|
|
|
|
|
# strips out all html/xml tags (everything between < >)
|
|
function helper.html-strip xml_strip html_strip() { sed 's/<[^>]\+>//g' }
|
|
|
|
# changes stdin string special chars to be shown in html
|
|
function helper.escape-html escape_html() {
|
|
sed -e '
|
|
s/\&/\&/g
|
|
s/>/\>/g
|
|
s/</\</g
|
|
s/"/\"/g
|
|
'
|
|
}
|
|
|
|
# escapes special chars in urls
|
|
function helper.decode-url decode_url urldecode() {
|
|
sed -e '
|
|
s/%25/%/gi
|
|
s/%20/ /gi
|
|
s/%09/ /gi
|
|
s/%21/!/gi
|
|
s/%22/"/gi
|
|
s/%23/#/gi
|
|
s/%24/\$/gi
|
|
s/%26/\&/gi
|
|
s/%27/'\''/gi
|
|
s/%28/(/gi
|
|
s/%29/)/gi
|
|
s/%2a/\*/gi
|
|
s/%2b/+/gi
|
|
s/%2c/,/gi
|
|
s/%2d/-/gi
|
|
s/%2e/\./gi
|
|
s/%2f/\//gi
|
|
s/%3a/:/gi
|
|
s/%3b/;/gi
|
|
s/%3d/=/gi
|
|
s/%3e//gi
|
|
s/%3f/?/gi
|
|
s/%40/@/gi
|
|
s/%5b/\[/gi
|
|
s/%5c/\\/gi
|
|
s/%5d/\]/gi
|
|
s/%5e/\^/gi
|
|
s/%5f/_/gi
|
|
s/%60/`/gi
|
|
s/%7b/{/gi
|
|
s/%7c/|/gi
|
|
s/%7d/}/gi
|
|
s/%7e/~/gi
|
|
s/%09/ /gi
|
|
'
|
|
}
|
|
|
|
function helper.encode-url encode_url urlencode() {
|
|
sed -e '
|
|
s/%/%25/g
|
|
s/ /%20/g
|
|
s/ /%09/g
|
|
s/!/%21/g
|
|
s/"/%22/g
|
|
s/#/%23/g
|
|
s/\$/%24/g
|
|
s/\&/%26/g
|
|
s/'\''/%27/g
|
|
s/(/%28/g
|
|
s/)/%29/g
|
|
s/\*/%2a/g
|
|
s/+/%2b/g
|
|
s/,/%2c/g
|
|
s/-/%2d/g
|
|
s/\./%2e/g
|
|
s/\//%2f/g
|
|
s/:/%3a/g
|
|
s/;/%3b/g
|
|
s//%3e/g
|
|
s/?/%3f/g
|
|
s/@/%40/g
|
|
s/\[/%5b/g
|
|
s/\\/%5c/g
|
|
s/\]/%5d/g
|
|
s/\^/%5e/g
|
|
s/_/%5f/g
|
|
s/`/%60/g
|
|
s/{/%7b/g
|
|
s/|/%7c/g
|
|
s/}/%7d/g
|
|
s/~/%7e/g
|
|
s/ /%09/g
|
|
'
|
|
}
|
|
|
|
}
|
|
# }}} Helpers
|
|
|
|
# {{{ Config
|
|
|
|
# This is not a full config parser, but its a mechanism to read single
|
|
# sections of configuration files that are separated using various
|
|
# syntax methods. The only method supported is now org-mode whose
|
|
# sections start with #+ . It fills in the global array
|
|
# $config_section which can be read out to a file or interpreted in
|
|
# memory, whatever syntax it may contain.
|
|
|
|
vars+=(config_section_type)
|
|
arrs+=(config_section)
|
|
config_section_type=org-mode
|
|
|
|
config.section.type() {
|
|
fn config.section.type
|
|
_type=$1
|
|
req=(_type)
|
|
ckreq || return $?
|
|
|
|
case $_type in
|
|
org-mode)
|
|
config_section_type=org-mode
|
|
;;
|
|
*)
|
|
error "Unknown config type:$_type"
|
|
return 1
|
|
;;
|
|
esac
|
|
|
|
act "$_type config section parser initialized"
|
|
return 0
|
|
|
|
}
|
|
|
|
# fills in contents of section in array config_section
|
|
config.section.read() {
|
|
fn config.section.read
|
|
_file=$1
|
|
_section=$2
|
|
req=(_file _section)
|
|
freq=($_file)
|
|
ckreq || return $?
|
|
|
|
case $config_section_type in
|
|
org-mode)
|
|
_contents=`awk '
|
|
BEGIN { found=0 }
|
|
/^#\+ '"$_section"'/ { found=1; next }
|
|
/^#\+/ { if(found==1) exit 0 }
|
|
/^$/ { next }
|
|
{ if(found==1) print $0 }
|
|
' $_file`
|
|
|
|
;;
|
|
*)
|
|
error "Unknown config type:$_type"
|
|
;;
|
|
esac
|
|
|
|
config_section=()
|
|
for c in ${(f)_contents}; do
|
|
config_section+=("$c")
|
|
done
|
|
return 0
|
|
|
|
}
|
|
|
|
# }}} Config
|