Unix shell client for the SeenThis API. Runs the editor then post the message.

seenthis.sh

#!/bin/bash

ENDPOINT=https://seenthis.net/api/messages 
TEMPLATE="<?xml version='1.0' encoding='UTF-8'?><entry xmlns='http://www.w3.org/2005/Atom'><summary></summary></entry>"
DEST_ENCODING=UTF-8
# TODO: it would be better to find it from the environment
MY_ENCODING=ISO-8859-1

if [ "$1" != "" ]; then
    echo "Usage: $0" >&2
    exit 1
fi
if [ ! -e $HOME/.seenthis/auth ]; then
    echo "Cannot find the authentication data file $HOME/.seenthis/auth" >&2
    exit 1
fi
USERNAME=$(head -n 1 $HOME/.seenthis/auth)
PASSWORD=$(head -n 2 $HOME/.seenthis/auth | tail -n 1)
if [ "$PASSWORD" = "" ]; then
    echo "Invalid authentication data file $HOME/.seenthis/auth" >&2
    exit 1
fi
if [ "$EDITOR" = "" ]; then
    EDITOR=vi
fi
if ! which curl > /dev/null 2>&1 ; then
    echo "Cannot find the HTTP client curl" >&2
    exit 1
fi
if ! which iconv > /dev/null 2>&1 ; then
    echo "Cannot find the character set converter iconv" >&2
    exit 1
fi
# TODO: XML starlet can be installed as 'xml'
if ! which xmlstarlet > /dev/null 2>&1 ; then
    echo "Cannot find the XML processing tool XML Startlet <http://xmlstar.sourceforge.net/>" >&2
    exit 1
fi
# This script depends on the read builtin and its -t (timeout)
# option. It is not standard (hence the bash shebang), we have to test
# it.
# http://www.cyberciti.biz/tips/how-do-i-find-out-what-shell-im-using.html
shell=$(basename $(ps hp $$|awk '{print $5}'))
if [ $shell != "zsh" ] && [ $shell != "bash" ] && [ $shell != "ksh" ]; then
    echo "Sorry, this script requires a shell with support of timeout in read. $shell is unknown to me." >&2
    exit 1
fi
# OK, all preliminary tests done

TEMPORARY=$(mktemp)
if read -t 0 INPUT; then 
    echo $INPUT > $TEMPORARY
    cat - >> $TEMPORARY
else
    echo "Create the message for SeenThis..."
    $EDITOR $TEMPORARY
    if [ -z $TEMPORARY ]; then
	echo "Empty file, cancelling..." >&2
	exit 1
    fi
fi
TEMPORARYXML=$(mktemp)
echo $TEMPLATE > $TEMPORARYXML
xmlstarlet ed --inplace --omit-decl \
    -N atom=http://www.w3.org/2005/Atom \
    --update '//atom:summary' \
    -v "$(cat $TEMPORARY | iconv -f $MY_ENCODING -t $DEST_ENCODING | xmlstarlet esc | sed -e 's/$/\r/')" \
    $TEMPORARYXML

# TODO: bad for security, other users can see the password with ps
curl --header "Content-Type: application/atom+xml;type=entry" \
    --user $USERNAME:$PASSWORD \
    --request POST \
    --data @$TEMPORARYXML \
    --insecure \
    $ENDPOINT

rm -f $TEMPORARY $TEMPORARYXML