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Victor Westerlund 2022-11-26 20:48:33 +01:00
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; Pragma environment variables
; Absolute path to your site contents.
SITE_PATH=""

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# Bootstrapping #
#################
/node_modules
/public/hot
/public/storage
/storage/*.key
/vendor
.env
.env.ini
.env.backup
.phpunit.result.cache
Homestead.json
Homestead.yaml
npm-debug.log
yarn-error.log
public/robots.txt
# OS generated files #
######################
.DS_Store
.DS_Store?
._*
.Spotlight-V100
.Trashes
Icon?
ehthumbs.db
Thumbs.db
.directory
# Tool specific files #
#######################
# vim
*~
*.swp
*.swo
# sublime text & textmate
*.sublime-*
*.stTheme.cache
*.tmlanguage.cache
*.tmPreferences.cache
# Eclipse
.settings/*
# JetBrains, aka PHPStorm, IntelliJ IDEA
.idea/*
# NetBeans
nbproject/*
# Visual Studio Code
.vscode
# Sass preprocessor
.sass-cache/

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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Lesser General Public License instead.) You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have. You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know their
rights.
We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.
Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software. If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.
Finally, any free program is threatened constantly by software
patents. We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary. To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.
The precise terms and conditions for copying, distribution and
modification follow.
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License. The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language. (Hereinafter, translation is included without limitation in
the term "modification".) Each licensee is addressed as "you".
Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope. The act of
running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.
1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.
You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.
2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:
a) You must cause the modified files to carry prominent notices
stating that you changed the files and the date of any change.
b) You must cause any work that you distribute or publish, that in
whole or in part contains or is derived from the Program or any
part thereof, to be licensed as a whole at no charge to all third
parties under the terms of this License.
c) If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an
announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide
a warranty) and that users may redistribute the program under
these conditions, and telling the user how to view a copy of this
License. (Exception: if the Program itself is interactive but
does not normally print such an announcement, your work based on
the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works. But when you
distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.
Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.
In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.
3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:
a) Accompany it with the complete corresponding machine-readable
source code, which must be distributed under the terms of Sections
1 and 2 above on a medium customarily used for software interchange; or,
b) Accompany it with a written offer, valid for at least three
years, to give any third party, for a charge no more than your
cost of physically performing source distribution, a complete
machine-readable copy of the corresponding source code, to be
distributed under the terms of Sections 1 and 2 above on a medium
customarily used for software interchange; or,
c) Accompany it with the information you received as to the offer
to distribute corresponding source code. (This alternative is
allowed only for noncommercial distribution and only if you
received the program in object code or executable form with such
an offer, in accord with Subsection b above.)
The source code for a work means the preferred form of the work for
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If distribution of executable or object code is made by offering
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access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.
4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License. Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
this License will not have their licenses terminated so long as such
parties remain in full compliance.
5. You are not required to accept this License, since you have not
signed it. However, nothing else grants you permission to modify or
distribute the Program or its derivative works. These actions are
prohibited by law if you do not accept this License. Therefore, by
modifying or distributing the Program (or any work based on the
Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Program or works based on it.
6. Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the
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restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties to
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7. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.
If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.
It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License.
9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the Program
specifies a version number of this License which applies to it and "any
later version", you have the option of following the terms and conditions
either of that version or of any later version published by the Free
Software Foundation. If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.
10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission. For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
make exceptions for this. Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.
NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License.

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# Pragma
Another framework for building websites with PHP.
> Docs coming in the next commit!

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{
"require": {
"matthiasmullie/minify": "^1.3"
}
}

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{
"_readme": [
"This file locks the dependencies of your project to a known state",
"Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
"This file is @generated automatically"
],
"content-hash": "e7806260d775937d439159cde5165225",
"packages": [
{
"name": "matthiasmullie/minify",
"version": "1.3.69",
"source": {
"type": "git",
"url": "https://github.com/matthiasmullie/minify.git",
"reference": "a61c949cccd086808063611ef9698eabe42ef22f"
},
"dist": {
"type": "zip",
"url": "https://api.github.com/repos/matthiasmullie/minify/zipball/a61c949cccd086808063611ef9698eabe42ef22f",
"reference": "a61c949cccd086808063611ef9698eabe42ef22f",
"shasum": ""
},
"require": {
"ext-pcre": "*",
"matthiasmullie/path-converter": "~1.1",
"php": ">=5.3.0"
},
"require-dev": {
"friendsofphp/php-cs-fixer": "~2.0",
"matthiasmullie/scrapbook": "dev-master",
"phpunit/phpunit": ">=4.8"
},
"suggest": {
"psr/cache-implementation": "Cache implementation to use with Minify::cache"
},
"bin": [
"bin/minifycss",
"bin/minifyjs"
],
"type": "library",
"autoload": {
"psr-4": {
"MatthiasMullie\\Minify\\": "src/"
}
},
"notification-url": "https://packagist.org/downloads/",
"license": [
"MIT"
],
"authors": [
{
"name": "Matthias Mullie",
"email": "minify@mullie.eu",
"homepage": "http://www.mullie.eu",
"role": "Developer"
}
],
"description": "CSS & JavaScript minifier, in PHP. Removes whitespace, strips comments, combines files (incl. @import statements and small assets in CSS files), and optimizes/shortens a few common programming patterns.",
"homepage": "http://www.minifier.org",
"keywords": [
"JS",
"css",
"javascript",
"minifier",
"minify"
],
"support": {
"issues": "https://github.com/matthiasmullie/minify/issues",
"source": "https://github.com/matthiasmullie/minify/tree/1.3.69"
},
"funding": [
{
"url": "https://github.com/matthiasmullie",
"type": "github"
}
],
"time": "2022-08-01T09:00:18+00:00"
},
{
"name": "matthiasmullie/path-converter",
"version": "1.1.3",
"source": {
"type": "git",
"url": "https://github.com/matthiasmullie/path-converter.git",
"reference": "e7d13b2c7e2f2268e1424aaed02085518afa02d9"
},
"dist": {
"type": "zip",
"url": "https://api.github.com/repos/matthiasmullie/path-converter/zipball/e7d13b2c7e2f2268e1424aaed02085518afa02d9",
"reference": "e7d13b2c7e2f2268e1424aaed02085518afa02d9",
"shasum": ""
},
"require": {
"ext-pcre": "*",
"php": ">=5.3.0"
},
"require-dev": {
"phpunit/phpunit": "~4.8"
},
"type": "library",
"autoload": {
"psr-4": {
"MatthiasMullie\\PathConverter\\": "src/"
}
},
"notification-url": "https://packagist.org/downloads/",
"license": [
"MIT"
],
"authors": [
{
"name": "Matthias Mullie",
"email": "pathconverter@mullie.eu",
"homepage": "http://www.mullie.eu",
"role": "Developer"
}
],
"description": "Relative path converter",
"homepage": "http://github.com/matthiasmullie/path-converter",
"keywords": [
"converter",
"path",
"paths",
"relative"
],
"support": {
"issues": "https://github.com/matthiasmullie/path-converter/issues",
"source": "https://github.com/matthiasmullie/path-converter/tree/1.1.3"
},
"time": "2019-02-05T23:41:09+00:00"
}
],
"packages-dev": [],
"aliases": [],
"minimum-stability": "stable",
"stability-flags": [],
"prefer-stable": false,
"prefer-lowest": false,
"platform": [],
"platform-dev": [],
"plugin-api-version": "2.0.0"
}

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<?php
require_once "../src/Init.php";
require_once Path::pragma("src/request/Request.php");
// Start the request processor. This is how Pragma gets initialized
// from an HTTP request.
(new Request());

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<?php
// Global paths
final class Path {
// Get root of Pragma installation for accesing framework files
public static function pragma(string $crumbs = ""): string {
return dirname(__DIR__) . "/" . $crumbs;
}
// Get root of user site folder
public static function root(string $crumbs = ""): string {
return $_ENV["SITE_PATH"] . "/" . $crumbs;
}
// Return the contents of a path
public static function contents(string $path): array|null {
$dir = scandir($path);
// Remove "." and ".." if is dir
if (!empty($dir)) {
array_shift($dir);
array_shift($dir);
}
return $dir;
}
}
// Load Composer dependencies
require_once Path::pragma("vendor/autoload.php");
// Put environment variables from INI into superglobal
$_ENV = parse_ini_file(Path::pragma(".env.ini"), true);
// Merge environment variables from site contents with Pragma default.
// Site content variables will override default, by default.
if (file_exists(Path::root(".env.ini"))) {
$_ENV = array_merge($_ENV, parse_ini_file(Path::root(".env.ini"), true));
}

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// Event handler for interactive components page
class Interactions {
constructor(scope, methods = {}, autoBind = true) {
// Default "built-in" interactions
this.methods = {
nav: (event) => {
new Navigation(event);
},
void: () => {}
}
// Merge incoming- and default interactions
Object.assign(this.methods, methods);
this.scope = scope;
this.elements = new Set();
// Bind elements on startup
if (autoBind) {
this.bindAll();
}
}
// Return default method name by element type
defaultActionFromType(element) {
switch (typeof element) {
case HTMLAnchorElement:
return "nav";
default:
console.warn("Undefined interaction", element);
return "void";
}
}
// Bind interactive components to an element
bind(element) {
// Call method when element is interacted with
if ("action" in element.dataset) {
// Action requested but method name not provided, attempt to resolve from element type
if (element.dataset.action.length < 1) {
element.dataset.action = this.defaultActionFromType(element);
}
// Call method when element is interacted with
element.addEventListener("click", event => {
event.stopPropagation(); // Don't bubble interaction to parent elements
this.methods[element.dataset.action](event);
});
}
this.elements.add(element);
}
// Find and bind all interactive elements on page
bindAll() {
const elements = [...document.querySelectorAll(`[data-trigger="${this.scope}"]`)];
elements.forEach(element => this.bind(element));
}
}

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// Basic virtual KV store with Storage API (and cookies)
class KvStore {
constructor(namespace = "kvstore", medium = null) {
this.namespace = namespace;
this.storage = medium; // Storage API interface (or document.cookie)
// Use LocalStorage as the default medium if none specified
if (!this.storage && localStorage in globalThis) {
this.storage = globalThis.localStorage;
}
// Create polyfill for cookie storage
if (this.storage === document.cookie) {
this.cookieStorage();
}
// ----
// Initialize virtual KV store
if (!this.get("kvstore")) {
this.set("kvstore", {
version: "1.0"
});
}
}
// Polyfill Storage API with cookies
cookieStorage() {
this.storage = {
// Get cookie value from namespace by key
getItem: (key) => {
let data = document.cookie.split("; ").find(cookie => cookie.startsWith(key + "="))?.split("=")[1] ?? null;
data = decodeURIComponent(data);
return JSON.stringify(data);
},
// Create/replace new namespaced cookie with key
setItem: (key, value, expires = null) => {
expires = expires ?? 60 * 60 * 24 * 365; // Cookie expires in 1 year by default
value = encodeURIComponent(value);
document.cookie = `${key}=${value}; max-age=${expires}; Path=/`;
},
// Remove namespaced cookie by key
removeItem: (key) => {
this.storage.setItem(key, "", 1);
}
}
}
// Prepend namespace prefix to key
key(key) {
return [this.namespace, key].join("_");
}
/* ---- */
// Get value by key
get(key) {
return JSON.parse(this.storage.getItem(this.key(key)));
}
// Set value by key
set(key, value) {
return this.storage.setItem(this.key(key), JSON.stringify(value));
}
// Remove entry by key
remove(key) {
return this.storage.removeItem(this.key(key));
}
}

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class Navigation {
constructor(source) {
this.worker = new Worker("/workers/NavigationWorker.js");
this.worker.addEventListener("message", event => this.messageHandler(event));
// The root element used for top navigations (and the default target)
this.main = document.getElementsByTagName("main")[0];
// Create URL object from string or event
if (!(source instanceof URL)) {
if (typeof source === "string") {
this.url = this.urlFromString(source);
}
// Handle events
if (source instanceof Event) {
this.eventHandler(source);
}
} else {
// Source is a URL object, use it directly
this.url = source;
}
}
// Push new entry with History API
historyPush(url) {
// Create URL object from string
url = url instanceof URL ? url : new URL(url);
if (url.pathname.substring(0, 6) === "/error") {
return false;
}
if (url.pathname === "/index") {
url.pathname = "/";
}
const state = {
url: url.toString()
}
history.pushState(state, "", url);
}
// Replace inner DOM of target with an SVG spinner
waiting(target) {
this.setTargetHtml(target, globalThis.spinnerSvg);
}
// Scroll to anchor element in DOM
scrollToAnchor() {
const hash = window.location.hash.substring(1);
const anchor = document.getElementById(hash) ?? null;
// Scroll top to anchor element if it exists in the DOM
if (anchor !== null) {
const top = document.getElementById("top");
top.scrollTo(0, anchor.offsetTop);
}
}
// Replace inner DOM of target element with stringified HTML
setTargetHtml(target, html) {
target = target instanceof HTMLElement ? target : document.querySelector(target);
target.innerHTML = html;
target.scrollTo(0, 0); // Reset scroll position of wrapper
target.parentElement.parentElement.scrollTo(0, 0); // Also reset scroll position for root element (Safari)
// Rebuild script tags as they don't execute with innerHTML per the HTML spec
const scripts = [...target.getElementsByTagName("script")];
scripts.forEach(script => {
const tag = document.createElement("script");
// Assign element attributes
for (const attribute of script.getAttributeNames()) {
tag.setAttribute(attribute, script.getAttribute(attribute));
}
tag.innerHTML = `{${script.innerText}}`;
script.remove();
target.appendChild(tag);
});
// URL is a top navigation and contains a hash
if (target.id == "top" && window.location.hash.length > 0) {
this.scrollToAnchor();
}
}
// Turn URL string or pathname into a URL object
urlFromString(string) {
let url = undefined;
try {
url = new URL(string);
} catch {
// Treat invalid URL as a pathname
url = new URL(window.location.href);
url.pathname = string;
}
// Carry existing top searchParams to new location
url.search = new URLSearchParams({
...Object.fromEntries(new URLSearchParams(window.location.search)),
...Object.fromEntries(new URLSearchParams(url.search))
}).toString();
return url;
}
// Extract URL and target from received event
eventHandler(event) {
event.preventDefault();
// Is activation type event
if (event.constructor === PointerEvent || event.constructor === MouseEvent) {
const element = event.target.closest("a");
let target = element.getAttribute("target");
this.url = this.urlFromString(element.href);
// Use the target attribute of the element to determine where to inject loaded content
switch (target) {
// Replace inner DOM of the the clicked element
case "_self":
target = event.target;
break;
// Replace inner DOM of target's closest parent element (will remove clicked element from DOM)
case "_parent":
target = element.parentElement;
break;
// Replace element inner DOM by id, or default to #top (#top will update URL and History API)
case "_top":
default:
target = document.getElementById(target) ?? document.getElementById("top");
break;
}
this.navigate(target);
}
}
// Get CSS Selector from DOM node
getCssSelector(element) {
// Traverse the node tree backwards from target element
const path = [];
while (element.parentNode) {
// We found an id, stop here and use it as the entry point
if (element.id) {
path.unshift("#" + element.id);
break;
}
const parent = element.parentElement;
const index = [...parent.children]?.indexOf(element) + 1;
if (parent === document.documentElement) {
path.unshift(element.tagName);
break;
}
path.unshift(`${element.tagName}:nth-child(${index})`);
element = parent;
}
return path.join(" > ");
}
// Handle generic messages from Worker
messageHandler(event) {
switch (event.data[0]) {
case "META":
console.log("Metadata received");
break;
}
}
// Perform SPA navigation by fetching new page and modifing DOM
async navigate(target = null, rejectOnFail = false) {
target = target ?? this.main;
// Tell Worker to fetch page
const selector = this.getCssSelector(target);
this.worker.postMessage([selector, this.url.toString()]);
const respTimeout = setTimeout(() => this.waiting(target), 300);
// Wait for Worker to fetch page
const nav = await new Promise((resolve) => {
this.worker.addEventListener("message", (event) => {
clearTimeout(respTimeout);
let [target, body, status, url] = event.data;
url = new URL(url);
// Target is a valid top navigation, do some stuff
if (status === 200 && (target === "main")) {
// Add loaded URL to history
this.historyPush(url);
}
// Update DOM and resolve this and outer Promise
this.setTargetHtml(target, body);
resolve(event.data);
}, { once: true });
});
// Create new Respone and pass HTTP status code
const resp = new Response(nav[1], { status: nav[2]});
// Resolve Promise with Response
if (!rejectOnFail) {
return Promise.resolve(resp);
}
// Align Promise completion with Response status
return resp.ok ? Promise.resolve(resp) : Promise.reject(resp);
}
}

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// Pragma frontend initializer.
// This script depends on "./Interactions.js" and "./Navigation.js" being
// present in the same scope duing initialization.
// Functions and classes accessible by all scripts
globalThis.pragma = {
// Bind core features to global scope
Interactions: (...args) => new Interactions(...args),
Navigation: (...args) => new Navigation(...args)
};
// Handle browser back/forward buttons
window.addEventListener("popstate", (event) => {
if ("url" in event.state) {
globalThis.pragma.Navigation(event.state.url).navigate();
}
});

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class Log {
constructor(data) {
this.endpoint = "https://api.icellate.com/log";
this.payload = {
host: globalThis.location.host,
ua: this.getUaString(),
time: performance.now(),
data: data
};
this.dispatch();
// Timeout and self-terminate after 10 seconds
setTimeout(() => this.destroy(), 10000);
}
// Terminate the log worker
destroy() {
globalThis.close();
}
getUaString() {
// Browser doesn't support/expose a NavigatorUAData object on global in this scope
if (!"userAgentData" in globalThis.navigator) {
return globalThis.navigator.userAgent;
}
// Get low-entropy values of the user agent
return JSON.stringify(globalThis.navigator.userAgentData);
}
// Send log data to endpoint
async dispatch() {
const log = await fetch(this.endpoint, {
method: "POST",
headers: {
"Content-Type": "application/json"
},
body: JSON.stringify(this.payload)
});
// Program will normally exit here on a successful log
if (log.ok) {
return this.destroy();
}
console.log(log, this.payload);
}
}
globalThis.addEventListener("message", event => new Log(event.data));

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class NavigationWorker {
constructor(event) {
this.options = {
headers: {
// Tell the backend we only want page content, no app shell
"X-Navigation-Type": "contained"
}
};
this.getPage(event.data);
}
// Create an empty Response with a status code only
newEmptyResponse(code = 500, message = "NavigationWorker: Internal Server Error") {
return new Response(null, {
status: code,
statusText: message
});
}
// Create a new error Response from a recieved Response
async error(resp, data = ["main"]) {
const target = data[0];
// Simulate Response from server if error is internal
if (!resp instanceof Response) {
resp = this.newEmptyResponse(500);
}
// Attempt to load custom error page
const errorPage = await this.getPage([target, "/error/404"]);
if (errorPage.ok) {
return errorPage;
}
// Create new Response with error HTML and forward HTTP status data
const html = `<main><h1>Error</h1><p>${resp.statusText}</main>`;
return new Response(html, {
status: resp.status,
statusText: resp.statusText
});
}
// ----
// Request metadata for page from backend
async getMeta(page) {
let options = {
headers: {
// Tell the backend we only want metadata for the page
"X-Navigation-Type": "meta"
}
};
Object.assign(options, this.options);
const req = new Request(page, options);
const resp = await fetch(req);
const json = await resp.json();
console.log("meta", json);
}
// Request page from back-end
async getPage(data) {
const target = data[0];
const page = data[1];
const req = new Request(page, this.options);
let resp = await fetch(req);
// Request failed, so show error page with status code
if(!resp.ok) {
resp = this.error(resp, data);
}
/*
* Fetch response body as plaintext and send to main thread
* so the browser can start parsing and painting the page ASAP
*/
const body = await resp.text();
// Send response back to initiator thread
globalThis.postMessage([
data[0], // Target element selector
body, // Page body
resp.status, // HTTP status code
resp.url // Loaded URL (after redirection etc.)
]);
// .. Get metadata for the page, such as <title> and more in the meantime
if (target === "main") {
this.getMeta(page);
}
globalThis.close();
}
}
globalThis.addEventListener("message", event => new NavigationWorker(event));

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<?= Page::js("modules/Navigation.js") ?>
<?= Page::js("modules/Interactions.js") ?>
<?= Page::js("pragma.js") ?>

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<?php
use MatthiasMullie\Minify;
class Page {
public function __construct($page = "document") {
// Check if request is for partial content
if (array_key_exists("HTTP_X_NAVIGATION_TYPE", $_SERVER)) {
switch ($_SERVER["HTTP_X_NAVIGATION_TYPE"]) {
// Request is for a page
case "contained":
Page::include($page, true);
break;
default:
http_response_code(422);
die("NAVIGATION_TYPE not supported");
}
} else {
// Serve the whole document on (re)load
Page::include("document");
}
}
// Return absolute path to asset on disk.
// The function takes a "scope" in the form of a $folder name relative to the asset root
// to prevent this function from reading anywhere on disk.
private static function get_asset_path(string $folder, string $file): string {
// Append name of folder as file extension if omitted.
// This may or may not resolve into an existing file. But for common web assets like
// JS and CSS it works rather fine.
if (strpos($file, ".") === false) {
$file .= "." . $folder;
}
// Attempt to read asset from user site first
$path = Path::root("assets/${folder}/${file}");
if (is_file($path)) {
return $path;
}
// Default to framework static asset if no user site asset found
return Path::pragma("src/frontend/${folder}/${file}");
}
// Set or get locale cookie from reference list of hostnames
private static function get_locale(string $locale = null): string {
// Locale arg not provided, use the first locale in user content pages
// as default.
if (empty($locale) && empty($_COOKIE["user_locale"])) {
$locales = Path::contents(Path::root("pages"));
if (empty($locales)) {
http_response_code(404);
die("No pages defined");
}
$locale = $locales[0];
}
// Set and return locale cookie if provided
if (!empty($locale)) {
setcookie("user_locale", $locale, 0, "/");
return $locale;
}
// Return already set locale cookie
return $_COOKIE["user_locale"];
}
// These functions are exposed to all pages. They can be called
// with the static reference Page::<method> anywhere on the page.
// Return minified CSS from file
public static function css(string $file): string {
$file = Page::get_asset_path("css", $file);
if(!is_file($file)) {
return "";
}
$minifier = new Minify\CSS($file);
return $minifier->minify();
}
// Return minified JS from file
public static function js(string $file): string {
$file = Page::get_asset_path("js", $file);
if(!is_file($file)) {
return "";
}
$minifier = new Minify\JS($file);
return $minifier->minify();
}
// Return contents of media file as base64-encoded string unless whitelisted
// for assets that should be read as-is, such as SVG.
public static function media(string $file): string {
$file = file_get_contents(Page::get_asset_path("media", $file));
// Invalid file returns empty string
if ($file === false) {
return "";
}
// Base64-encode everything that isn't in whitelist array
if (!in_array(substr($file, -1, 4), [".svg"])) {
$file = base64_encode($file);
}
return $file;
}
// Load an external document into the current document
public static function include(string $name) {
// Rewrite root to /main page
if ($name === "/") {
$name = "/index";
}
// Attempt to load from user content pages
$locale = Page::get_locale();
$file = Path::root("pages/${locale}/${name}.php");
// If user content page does not exist, try to load from framework
if (!is_file($file)) {
$file = Path::pragma("src/frontend/${name}.php");
}
include $file;
}
}

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<?php
require_once Path::pragma("src/request/Page.php");
class Request {
private static $preg_worker = "/^\/worker\/*/";
public function __construct() {
// Get pathname from request URI
$this->path = parse_url($_SERVER["REQUEST_URI"], PHP_URL_PATH);
$this->router();
}
// Request router
private function router() {
switch ($this->path) {
// Return script to be run in a JS Worker
case (preg_match(Request::$preg_worker, $this->path) ? true : false):
return $this->worker();
// Ignore requests to /favicon.ico which sometimes gets sent automatically
// by browsers when a an icon meta tag is not specified. We don't want to prepare
// a whole page instance for this.
case "/favicon.ico":
return $this->void();
// Pass request to Page() initializer
default:
return new Page($this->get_requested_path());
}
}
private function get_requested_path(): string {
$path = $this->path;
// Requests to root of user content path should be rewritten to /index
if ($this->path === "/") {
$path = "index";
}
// Strip leading slash
if (strpos($this->path, "/") === 1) {
$path = substr($this->path, 1);
}
return $path;
}
// Return empty response
private function void(): never {
// No content
http_response_code(204);
exit();
}
// Return contents of a JS file to be run inside a JS Worker
private function worker(): never {
// Check if worker script exists
$file = Path::pragma("src/frontend/js{$this->path}");
if (!is_file($file)) {
http_response_code(404);
die("Not a worker");
}
// Return worker script contents
header("Content-Type: text/javascript");
exit(file_get_contents($file));
}
}