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seirdy.one/scripts/get-webmentions.sh
2023-11-15 02:31:06 -08:00

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#!/bin/sh
#
# Script to fetch all approved webmentions from webmentiond as a big json response.
# Uses POSIX and cURL in CI, also uses any pass/pash-compatible pwmngr otherwise
# The response is cached for 90 minutes.
set -e -u
auth_url='https://seirdy.one/webmentions/authenticate/access-key'
webmentions_url='https://seirdy.one/webmentions/manage/mentions?limit=9999&status=approved'
webmentions_file="$(realpath data/webmentions.json)"
# just a little curl wrapper I use on seirdy.one
alias ccurl='curl --proto "=https" --proto-default https --tlsv1.3 --cert-status'
# use a long-lived key (password) to fetch a short-lived bearer token.
key() {
set +u
if [ -n "$BUILD_SUBMITTER" ]; then
cat ~/.webmentiond-key
else
pash show webmentiond-ci-key
fi
set -u
}
token() {
key_response="$(key)"
ccurl -sX POST "$auth_url" -d "key=$key_response"
}
# use that token to fetch all webmentions
fetch_webmentions() {
token_response="$(token)"
ccurl --compressed -H "Authorization: Bearer $token_response" "$webmentions_url" -o "$webmentions_file"
}
# fetch webmentions if we don't have a fresh copy already.
if [ -f "$webmentions_file" ] \
&& [ "$(find "$webmentions_file" -mmin +90)" = "" ]; then
echo 'Using cached webmentions'
else
echo 'Fetching webmentions'
fetch_webmentions
fi