#!/bin/bash

# Edit these to match your blog.
USERNAME="WORDPRESS.COM USERNAME"
PASSWORD="WORDPRESS.COM PASSWORD"
URL="http://<BLOG NAME>.wordpress.com"

DATE=`date +'%Y%m%d'`
   
if [[ $1 == "" ]]; then
   # If not specified on the command line, the default directory is...
   BACKUP="."
else
   # Otherwise we'll use the one that the user wants.
   BACKUP=$1
   # if BACKUP doesn't exist, make it.
   [[ ! -d ${BACKUP} ]] && mkdir -p ${BACKUP}
fi
BACKUP="${BACKUP}/backup.${DATE}.xml"
   
# Set some default file names'
COOKIES="/tmp/cookies.txt.${DATE}.$$"
OUTPUT="/tmp/output.html.${DATE}.$$"
   
# This is the command we'll use to connect to wordpress.com...
WGET="wget --load-cookies=${COOKIES} --save-cookies=${COOKIES} --keep-session-cookies -q -O"
   
# First, we'll login and get the cookies...
POSTDATA="log=${USERNAME}&pwd=${PASSWORD}"
POSTDATA="${POSTDATA}&rememberme=forever&wp-submit=Log%20In"
POSTDATA="${POSTDATA}&redirect_to=wp-admin/&testcookie=1"
${WGET} ${OUTPUT} --post-data="${POSTDATA}" ${URL}/wp-login.php
   
# Then, using those ever so tasty cookies, we'll download an XML back from wordpress.com.
${WGET} ${BACKUP} "${URL}/wp-admin/export.php?author=all&download=true"
   
# Remove our temporary files...
rm -f ${OUTPUT} ${COOKIES}