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Get all draft post URLs from a given Ghost installation and output them to a given file; see https://www.how-hard-can-it.be/getting-all-draft-posts-ghost-blog/ for details
#!/bin/bash
# This Bash script gets all draft post URLs from a given Ghost installation and
# outputs them to a given file; see <https://www.how-hard-can-it.be/getting-all-draft-posts-ghost-blog/>
# for details
# Stop on all errors
set -e
# Static variable defintions
DRAFT_POSTS_JSON_FILE="posts.json"
DRAFT_POSTS_PREFIX="/p"
###############################################################################
# Helper Functions #
###############################################################################
# Helper function for displaying help text (note the irony!)
function display_help {
script_name=$(basename "$0")
echo "Usage: ${script_name} -u <ghost-base-url> -o <output-file>"
echo "Example: ${script_name} -u https://www.how-hard-can-it.be -o drafts.paths"
echo "Remark: This script expects to retrieve the username and password from "
echo " the corresponding environment variables 'username' and 'password'."
}
###############################################################################
# Input Argument Handling #
###############################################################################
# Input argument parsing
while getopts ":hu:o:" option
do
case "${option}" in
u) ghost_base_url=${OPTARG};;
o) output_file=$OPTARG;;
h) display_help; exit -1;;
\?) echo "Invalid option: $OPTARG" >&2; exit 1;;
:) echo "Missing option argument for -$OPTARG" >&2; exit 1;;
esac
done
# Mandatory input arguments check
if [[ -z "${ghost_base_url}" || -z "${output_file}" ]]; then
display_help
exit -1
fi
###############################################################################
# Mandatory Environment Variable Handling #
###############################################################################
# Environment variable validations
if [ -z ${username} ]
then
echo "Environment variable 'username' not set. Use 'export username=<username>' to export <username>."
exit 1
fi
if [ -z ${password} ]
then
echo "Environment variable 'password' not set. Use 'export password=<password>' to export <password>."
exit 1
fi
###############################################################################
# Draft Posts Retrieval via API #
###############################################################################
# Create a session and store the cookie in a temporary variable (avoiding writing it to disk!);
# see <https://www.how-hard-can-it.be/curl-cookie-memory-only-not-disk/> for details
cookie=$(curl -c - -d username="${username}" -d password="${password}" \
-H "Origin: ${ghost_base_url}" \
"${ghost_base_url}/ghost/api/v2/admin/session/")
# Use the session cookie to query all draft posts and save them in ${DRAFT_POSTS_JSON_FILE}
echo "${cookie}" | curl -b - \
-H "Content-Type: application/json" \
-H "Origin: ${ghost_base_url}" \
"${ghost_base_url}/ghost/api/v2/admin/posts/?limit=all&filter=status:draft&fields=uuid" > "${DRAFT_POSTS_JSON_FILE}"
###############################################################################
# Draft Posts Extraction via jq #
###############################################################################
# Remove any previous leftover ${output_file}
rm -f "${output_file}"
# Extract all draft posts and store them in ${output_file}
for uuid in $(jq -r '.posts[].uuid' "${DRAFT_POSTS_JSON_FILE}")
do
echo "${DRAFT_POSTS_PREFIX}/${uuid}/" >> "${output_file}"
done
# Delete the temporary file ${DRAFT_POSTS_JSON_FILE} at this point (and not inside a trap)
# to allow for debugging in case things (can and will) go wrong
rm -f "${DRAFT_POSTS_JSON_FILE}"
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