#!/bin/bash

version=5/12/2017

	# si $1=all affichage complet
f__affichage(){		# 5/12/2017
		# définition couleurs
	YELLOW="$(printf "\033[0;33m")"		# ?
	 GREEN="$(printf "\033[0;32m")"		# ok
	  BLUE="$(printf "\033[0;34m")"		# info
	   RED="$(printf "\033[0;31m")"		# alerte
	 COLOR="$(printf "\033[0m")"		# standard
	   STD="$(printf "\033[0m")"		# standard
	[ "$1" == all ] || return
	clear
	printf "$YELLOW"
	[ "$(which figlet)" ] && figlet -w120 "$(basename $0)" || echo -e "\t\t\t$(basename $0)"
	echo -e "$GREEN\t\t\tversion $version$COLOR\n"
}

f_help(){		# 25/12/2017
	f__affichage all
printf $BLUE
cat << 'EOF'
  ----------------------------------------------------------------------
  === versions Thunderbird ===
  latest: x.y.z      beta: x.y.z

    pour chaque architecture linux ou linux64 (32 ou 64 bits):
    ==========================================================
  canal: url récup canal		HTTP/1.1 302 Found HTTP/1.1 200 OK 
  Location: url réelle de l'archive du canal si redirection

  ----------------------------------------------------------------------
  liens de téléchargement manuels:
  latest : https://www.mozilla.org/fr/thunderbird/
  latest : https://www.mozilla.org/en-US/thunderbird/all/

  beta   : https://www.mozilla.org/fr/thunderbird/channel/
  beta   : https://www.mozilla.org/en-US/thunderbird/beta/all/

EOF
	printf $COLOR
	exit
}

	# test wget, $1=url à tester, sortie du script (même si url testée ok) avec affichage erreur ou ok
	# si $2=print affiche url testée & entêtes http & location, return 0
	# si $2=loc affiche seulement location, return 0
	# si $2=test return 0 si ok, return 1 si KO
f__wget_test(){		# 11/12/2017
	local file_test_wget retourWget retourHttp location

	file_test_wget="/tmp/testWget-$$-$RANDOM"
	wget -Sq --timeout=5 --tries=2 --user-agent="$user_agent" --spider --save-headers "$1" &>"$file_test_wget"
	retourWget="$?"
	[ "$retourWget" == 1 ] && retourWget="1: code erreur générique"
	[ "$retourWget" == 2 ] && retourWget="2: parse erreur (ligne de commande?)"
	[ "$retourWget" == 3 ] && retourWget="3: erreur Entrée/sortie fichier"
	[ "$retourWget" == 4 ] && retourWget="4: défaut réseau"
	[ "$retourWget" == 5 ] && retourWget="5: défaut vérification SSL"
	[ "$retourWget" == 6 ] && retourWget="6: défaut authentification"
	[ "$retourWget" == 7 ] && retourWget="7: erreur de protocole"
	[ "$retourWget" == 8 ] && retourWget="8: réponse serveur en erreur"
	retourHttp=$( grep -i 'HTTP/' "$file_test_wget" | tr -d '\n' | xargs )
	location=$( grep -i 'location' $file_test_wget | xargs )
	if [ "$2" == "test" ]; then
		rm  "$file_test_wget" 2>/dev/null
			# spécial maintenance frama.link, pas de redirection sur page status framalink
		[ "$( grep -c '303' <<< $retourHttp )" -ne 0 ] && return 1	# 303 See Other
		[ "$retourWget" == "0" ] && return 0 || return 1
	fi
	if [ "$2" == "print" ]; then
		if [ "$retourWget" != "0" ]; then
			echo "erreur wget: $RED$retourWget" 
			echo -e "$BLUE  $1$STD\t$RED  $retourHttp"
		else
			echo -e "$BLUE  $1$STD\t$GREEN  $retourHttp" 
		fi
		echo "$STD"
	fi
	if [ "$2" == "print" ] || [ "$2" == "loc" ]; then
		[ "$location" ] && echo -n "$YELLOW  $location" || echo -n "$YELLOW  no location"
		echo "$STD"
		rm  "$file_test_wget" 2>/dev/null
		return 0
	fi
	if [ "$retourWget" != "0" ]; then
		rm  "$file_test_wget" 2>/dev/null
#		f__error "wget, $retourWget" "$1" "$YELLOW$retourHttp" "$location"
		echo -e "$RED   erreur wget, $retourWget \n  $1 \n  $YELLOW$retourHttp \n  $location$STD" # pour les diags
		return 1
	fi
	if [ "$(grep -c '200' <<< $retourHttp)" -ne 0 ]; then 
		echo -e "$GREEN\ntout est ok, réessayer$STD\n"
	fi
	rm  "$file_test_wget" 2>/dev/null
	exit 0
}

test_url_dl_thunderbird(){		# 5/12/2017
	local recup_url fu_archi
	for fu_archi in linux linux64; do
		echo "    Architecture: $fu_archi"
		echo "    ====================="
		for canal in latest beta; do
			[ "$canal" == "beta" ] && prefixe="$canal-"
			recup_url="https://download.mozilla.org/?product=thunderbird-$prefixe""latest&os=$fu_archi&lang=fr"
			printf "  $canal":
			f__wget_test "$recup_url" print
		done
	done
}

	# assigne $verLatest, $verBeta
test_version_thunderbird(){		# 5/12/2017
	local recup_url prefixe verOnline verTbOnline

	echo -e "\n    === versions Thunderbird ==="

	for canal in latest beta; do
			# version online
		[ "$canal" == "beta" ] && prefixe="$canal-"
		recup_url="https://download.mozilla.org/?product=thunderbird-$prefixe""latest&os=$fu_archi&lang=fr"
		verOnline="$( sed -E 's#.*thunderbird/releases/(.*)/linux-.*$#\1#' <<< $( f__wget_test $recup_url loc ) )"
		verTbOnline+="$( printf "%-7s: %-12s" $canal $verOnline )"
	done
	[ "$verTbOnline" ]  || verTbOnline="$RED""aucune(s)"

	echo -e "  $GREEN$verTbOnline$COLOR"
}

	# start
user_agent="Mozilla/5.0 Firefox"
f__affichage
[ "$1" == "-h" ] && f_help
fu_archi="linux64"

test_version_thunderbird
echo
test_url_dl_thunderbird
echo

#nouveaux formats?:
#https://download.mozilla.org/?product=thunderbird-52.5.2-SSL&os=linux64&lang=fr
#https://download.mozilla.org/?product=thunderbird-58.0b2-SSL&os=linux64&lang=fr

exit

autres liens
https://releases.mozilla.org/pub/thunderbird/releases/latest/
https://releases.mozilla.org/pub/thunderbird/releases/latest-beta/
https://releases.mozilla.org/pub/thunderbird/nightly/latest-comm-central-l10n/