thost-uploader

#!/bin/bash
set -euo pipefail

#
# Bash script showing how to use curl to save to a Tiddlyhost site.
#
# Example usage:
#   ./thost-uploader yoursite newcontent.html youremail@example.com yourpassword
#
# To avoid including your password in scripts, you could do something like
# this for example:
#   echo yourpassword > ~/.thostpass
#   chmod 600 ~/.thostpass
#
# Then:
#   ./thost-uploader yoursite newcontent.html youremail@example.com $(cat ~/.thostpass)
#

show_usage() {
  echo Usage:
  echo "  $0 <sitename> <tiddlywikifile> <email> <password>"
  exit 1
}

SITE=$1
FILE=$2
EMAIL=$3
PASSWD=$4

DOWNLOAD_DIR=${DOWNLOAD_DIR:-./downloads}
mkdir -p $DOWNLOAD_DIR

[[ -z "$SITE" ]] && show_usage
[[ -z "$FILE" ]] && show_usage
[[ -z "$EMAIL" ]] && show_usage
[[ -z "$PASSWD" ]] && show_usage

[[ ! -r "$FILE" ]] && echo "Can't read file $FILE!" && exit 1

TIDDLYHOST=tiddlyhost.com
SIGN_IN=https://$TIDDLYHOST/users/sign_in
COOKIES=$(mktemp)
trap "rm -f $COOKIES" EXIT
CURL="curl -s --cookie-jar $COOKIES --cookie $COOKIES"

# Read authenticity_token
TOKEN=$($CURL $SIGN_IN | grep '"csrf-token"' | cut -d'"' -f4)

# Log in
$CURL -X POST $SIGN_IN \
  -d "authenticity_token=$TOKEN" \
  -d "user[email]=$EMAIL" \
  -d "user[password]=$PASSWD" \
  -o /dev/null

# Check we logged in succesfully
OK=$($CURL -I "https://$TIDDLYHOST/sites" | head -1 | grep '200 OK')
[[ -z "$OK" ]] && echo "Login failed." && exit 1

TIMESTAMP=$(date +%Y%m%d%H%M%S)

# Download a copy just in case something goes wrong
$CURL "https://$SITE.$TIDDLYHOST/download" -o $DOWNLOAD_DIR/$SITE.$(date +%Y%m%d%H%M%S).backup.html

# Now upload the new TiddlyWiki file
OK=$($CURL -i -X PUT --data-binary "@$FILE" \
  -H "Content-Type: text/html;charset=UTF-8" \
  "https://$SITE.$TIDDLYHOST/" | grep '204 No Content')

# 204 means it worked
if [[ -z "$OK" ]]; then
  echo "Upload failed." && exit 1
else
  echo "Uploaded $FILE to https://$SITE.$TIDDLYHOST/"
fi

# Clean up
rm -f $COOKIES