adactio’s gists

adactio / redirect.php

Last active January 2, 2024 23:24

A proxy that tries to redirect bad links to the internet archive.

	<?php

	// Check that the request is coming from my site.
	if (!isset($_SERVER['HTTP_REFERER']) \|\| !stristr(strtolower($_SERVER['HTTP_REFERER']), strtolower($_SERVER['SERVER_NAME']))) {
	http_response_code(403);
	exit;
	}

	// There has to be a URL provided in the query string.
	if (!isset($_GET['url'])) {

adactio / redirectLinks.js

Last active November 20, 2023 18:11

Intercept clicks on external links and pass them to a redirector.

	document.body.addEventListener('click', function(event) {
	var target = event.target.closest('a[href]');
	if (!target) return;
	var href = encodeURIComponent(target.getAttribute('href'));
	if (!href.startsWith('http')) return
	if (href.includes('archive.org')) return
	var url = `/redirect.php?url=${href}`;
	if (target.closest('.h-entry') && target.closest('.h-entry').querySelector('time.dt-published[datetime]')) {
	var date = encodeURIComponent(target.closest('.h-entry').querySelector('time.dt-published').getAttribute('datetime'));
	url += `&date=${date}`;

adactio / autoLinkMastodonUsernames.php

Created October 30, 2023 13:11

A regular expression to convert @@ usernames into hyperlinks

	<?php

	/* Pass a string of text into the function to convert @@ usernames. */

	function autoLinkMastodonUsernames($string) {

	return preg_replace(
	'/@?\b([A-Za-zŽžÀ-ÿ0-9._%+-]+)@([A-Za-zŽžÀ-ÿ0-9.-]+\.[A-Za-zŽžÀ-ÿ]{2,})\b/i',
	'<a href="https://$2/@$1">$0</a>',
	$string

adactio / updateDateTimes.js

Last active September 11, 2023 05:10

Periodically update the text of `datetime` elements with the relative time elapsed.

	(function (win, doc) {
	'use strict';
	if (!doc.querySelectorAll \|\| !win.Intl \|\| !win.Intl.RelativeTimeFormat) {
	// doesn't cut the mustard.
	return;
	}
	var rtf = new Intl.RelativeTimeFormat('en', {
	localeMatcher: 'best fit',
	numeric: 'always',
	style: 'long'

adactio / postToMastodon.php

Last active December 22, 2022 16:27

A PHP function that posts an update to Mastodon

	<?php

	/*
	Pass in an array of data with keys for `status`
	e.g.
	postToMastodon(array(
	'status' => 'Hello, world!'
	));

	Include `reply_url` if you're responding to a post

adactio / previewImageUploads.js

Created May 12, 2022 13:33

Show inline previews of images that are going to be uploaded.

	// Licensed under a CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
	// http://creativecommons.org/publicdomain/zero/1.0/

	(function (win,doc) {
	'use strict';
	if (!win.FileReader \|\| !win.addEventListener \|\| !doc.querySelectorAll) {
	// doesn't cut the mustard.
	return;
	}
	doc.querySelectorAll('input[type="file"][accept="image/*"]').forEach( function (fileInput) {

adactio / getBandcampArtist.php

Created October 21, 2021 12:06

Scraping Bandcamp for artist info.

	<?php

	function curlURL($url) {

	$return = array();

	$ch = curl_init();
	curl_setopt($ch, CURLOPT_URL, $url);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
	curl_setopt($ch, CURLOPT_VERBOSE, 1);

adactio / _polyfills.js

Created November 9, 2020 17:19

JavaScript polyfills for matches,closest, and forEach.

	// https://github.com/jonathantneal/closest/blob/master/src/index.js
	var ElementPrototype = window.Element.prototype;
	if (typeof ElementPrototype.matches !== 'function') {
	ElementPrototype.matches = ElementPrototype.msMatchesSelector \|\| ElementPrototype.mozMatchesSelector \|\| ElementPrototype.webkitMatchesSelector \|\| function matches(selector) {
	var element = this;
	var elements = (element.document \|\| element.ownerDocument).querySelectorAll(selector);
	var index = 0;
	while (elements[index] && elements[index] !== element) {
	++index;
	}

adactio / saveTextarea.js

Last active December 2, 2023 06:52

Put the contents of a textarea into localStorage if the user leaves the page before submitting the form.

	// Licensed under a CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
	// http://creativecommons.org/publicdomain/zero/1.0/

	(function (win, doc) {
	// Cut the mustard.
	if (!win.localStorage) return;
	// You should probably use a more specific selector than this.
	var textarea = doc.querySelector('textarea');
	// The key for the key/value pair in localStorage is the current URL.
	var key = win.location.href;

adactio / giveFeedback.js

Last active August 27, 2022 11:22

An unobtrusive animation effect for providing feedback to the user.

	// Licensed under a CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
	// http://creativecommons.org/publicdomain/zero/1.0/

	/*
	This function takes two arguments:
	element: a reference to a DOM node in the document e.g. a button.
	feedbackContent: a string of text or HTML.

	An example of usage would be:
	document.querySelector('button').addEventListener('click', function() {

Jeremy Keith adactio