This Thunar Custom Action will upload an image to the imagehost Imgur.

thunar-custom-action-upload-imgur.sh

#!/bin/sh
#
# Upload a Picture to imgur.
#
# * Put this file into your home binary dir: ~/bin/
# * Make it executable: chmod +x
#
#
# Required Software:
# -------------------------
# * zenity
# * curl
#
#
# Thunar Integration
# ------------------------
#
# Command: ~/bin/thunar-upload-to-imgur.sh -f %f
# File Pattern: *
# Appear On: Image Files
#
#
# Usage:
# -------------------------
# thunar-upload-to-imgur.sh -f  [-w width(int)] [-h height(int)] [-t window-title]
#
# required:
# -f input filename
#
# optional:
#
# -w (gui) width of window (e.g.: -w 800)
# default is 800
#
# -h (gui) height of window (e.g.: -h 240)
# default is 240
#
# -t (gui) window title
# default is filename
#
# Note:
# -------------------------
#
# Feel free to adjust/improve and commit back to:
# https://github.com/pantu/thunar-custom-actions
#


usage() {
echo "$0 -f  [-w width(int)] [-h height(int)] [-t window-title]"
echo
echo " required:"
echo " -f input filename"
echo
echo " optional:"
echo " -w (gui) width of window (e.g.: -w 800)"
echo " default is 800"
echo
echo " -h (gui) height of window (e.g.: -h 240)"
echo " default is 240"
echo
echo " -t (gui) window title"
echo " default is filename"
echo
exit 1
}


while getopts ":f:cw:h:t:" i; do
case "${i}" in
f)
f=${OPTARG}
;;
c)
c=yes
;;
w)
w=${OPTARG}
;;
h)
h=${OPTARG}
;;
t)
t=${OPTARG}
;;
*)
echo "Error - unrecognized option $1" 1>&2;
usage
;;
esac
done
shift $((OPTIND-1))

# Check if file is specified
if [ -z "${f}" ]; then
echo "Error - no file specified" 1>&2;
usage
fi


# Console (TODO:)
# curl -# -F "image"=@"$f" -F "key"="4907fcd89e761c6b07eeb8292d5a9b2a" http://imgur.com/api/upload.xml \
# | grep -Eo '<[a-z_]+>http[^<]+' \
# | sed 's/^<.\|_./\U&/g;s/_/ /;s/<\(.*\)>/\x1B[0;34m\1:\x1B[0m /'



########################## gui output ###############################
[ ! -z "${w##*[!0-9]*}" ]	&& WIDTH=$f	|| WIDTH=800
[ ! -z "${h##*[!0-9]*}" ]	&& HEIGHT=$f	|| HEIGHT=240
[ -n "${t}" ]	&& TITLE=$t	|| TITLE="Uploading to imgur: `basename "${f}"`"



#TEXT=$(curl -F "image"=@"$f" -F "key"="a3793a1cce95f32435bb002b92e0fa5e" http://imgur.com/api/upload.xml | sed -e "s/.*//" | sed -e "s/<.*//")
#zenity --info --title="Imgur Upload" --text="$TEXT"

curl -# -F "image"=@"$f" -F "key"="4907fcd89e761c6b07eeb8292d5a9b2a" http://imgur.com/api/upload.xml \
| grep -Eo '<[a-z_]+>http[^<]+' \
| zenity --width=${WIDTH} --height=${HEIGHT} --text-info --title "${TITLE}"