#!/bin/bash

# Copyright (c) 2009 Florian Reitmeir
# Copyright (c) 2009 Peter Palfrader
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation
# files (the "Software"), to deal in the Software without
# restriction, including without limitation the rights to use,
# copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following
# conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.

# Author: Florian Reitmeir
# E-mail: florian@reitmeir.org

base_http=http://www.example.com/pub
base_rsync=marvin.example.com:/var/www/www.example.com/htdocs/pub

history_file=false
history_lines=1000

[ -e ~/.publish.cfg ] && . ~/.publish.cfg

usage()
{
cat << EOF
usage: $0 <src> [<src> ...]

copy the file <src> to a server an report the URL.

OPTIONS:
   -h      Show this message
   -n      no-do.  Just print what would have been done
EOF
}

uri_encode() {
	perl -MURI::Escape -ne 'print uri_escape($_)'
}

get_random() {
	head -c 8 /dev/urandom | base64 | tr '/+' 'xx' | tr -d '='
}

history_append() {
    time=$(date --utc --rfc-3339='seconds')
    echo $time $1 >>"$history_file"

    history_tmp=$( tempfile )
    cat "$history_file" | tail --lines="$history_lines" >"$history_tmp"
    mv "$history_tmp" "$history_file"
}

history_show() {
    cat "$history_file"
}

NODO=""

while getopts "hns" OPTION
do
     case $OPTION in
         h)
             usage
             exit
             ;;
         n)
             NODO="echo"
             ;;
         s)
             if [ -r "$history_file" ]; then
                history_show
                exit 0
             else
                echo "history file: '$history_file' not found"
                exit 3
             fi
             ;;
         *)
             usage >&2
             exit 1
             ;;
     esac
done
shift $(($OPTIND - 1))

if [[ "$#" = 0 ]]; then
	echo "No files to copy" >&2
	exit 2
fi

d_date=$(date +'%Y-%m-%d')
d_random=$(get_random)
d_server="$d_date-$d_random"
rsync_args="--partial --recursive --compress"

d_server_http_base=$( echo -n "$d_server" | uri_encode )

if [ "$#" = 1 ]; then
	only_one=1
else
	only_one=0
	echo "$base_http/$d_server_http_base/"
fi

for file in "$@"; do
    uri="$base_http/$d_server_http_base/$( echo -n "$file" | uri_encode )"
	echo "$uri"
    if [ -w "$history_file" ]; then
        history_append "$uri"
    fi
done

while [ "$#" -gt 0 ]; do
	file="$1"
	shift

	if [ -d "$file" ] && [ "$only_one" = 1 ]; then
		trail="/"
	else
		trail=""
	fi

	$NODO rsync $rsync_args "$file$trail" $base_rsync"/$d_server/"
done