aquinas/router.php

<?php

require "parsedown.php";

$tryuri = ltrim("$_SERVER[REQUEST_URI]", '/');
$tryuri = strtok($tryuri, "?");

if (page_locked($tryuri)) {
    load_page("404");
}

if (file_exists("site.json")) {
    $site = json_decode(file_get_contents("site.json"), true);
} else {
    echo "Need a site.json file to work!";
    return false;
}

if (preg_match('/\.(?:jpg|png|webp|css|ico|js|ttf|woff|txt)/', $_SERVER["REQUEST_URI"])) {
    return false;
}



load_page($tryuri);


/* HELPER FUNCTIONS START */

function get_path_content($path) {
    $fs = scandir($path);
    $titles;

    for ($i = 2; $i < count($fs); $i++) {
        $f = "$path/$fs[$i]";
        if (!is_dir($f)) {
            if (pathinfo($f, PATHINFO_EXTENSION) == "json") {
                $titles[] = ["c" => json_decode(file_get_contents($f), true), "link" => uri_from_file($f)];
            }
        } else {
            $fy = "$f/index.json";
            if (file_exists($fy) && !page_locked($fy)) $titles[] =  ["c" => json_decode(file_get_contents($fy), true), "link" => uri_from_file($fy)];
        }
    }

    return $titles;
}

function uri_from_file($file) {
    $name = substr($file, strrpos($file, '/')+1);
    if ($name == "index.json") {
        return substr($file, 0, -strlen($name)-1);
    }

    if (!strcmp(substr($file, strrpos($file, '.')+1), "json")) {

        return substr($file, 0, -5);
    }
}

function load_page($tryuri) {
global $site;

$mainphp = "";
$jsonf = "";
$parsef = "";

/* Looking for 3 things: a base, a content, and a template */

$tryf = "$tryuri/index";
$tryf = ltrim($tryf, '/');

if (file_exists("$tryf.json")) {
    $jsonf = "$tryf.json";
} else if (file_exists("$tryuri.json")) {
    $jsonf = "$tryuri.json";
}

if (file_exists("$tryf.php")) {
    $mainphp = "$tryf.php";
}
else if (file_exists("$tryuri.php")) {
    $mainphp = "$tryuri.php";
}

if (file_exists("$tryf.md")) {
    $parsef = "$tryf.md";
} else if (file_exists("$tryuri.md")) {
    $parsef = "$tryuri.md";
}

if (empty($mainphp) && empty($jsonf) && empty($parsef)) {
    load_page("404");
    return;
}

if (empty($mainphp)) {

    while ($tryuri != "") {
        if (file_exists("$tryuri/temp.php")) {
            $mainphp = "$tryuri/temp.php";
            goto endmain;
        }

        $tryuri = substr($tryuri, 0, strrpos($tryuri, '/'));
    }

    $mainphp = "temp.php";
}

endmain:


if (!empty($jsonf)) {
$file = file_get_contents($jsonf);
$obj = json_decode($file);
}

if (!empty($parsef)) {
    $pd = new Parsedown();
    $parse = $pd->text(file_get_contents($parsef));
}

$page['title'] = $obj->title ?? $site['title'];
$page['desc'] = $obj->desc ?? $site['desc'];

include "base.php";

$tt = microtime(true) - $_SERVER['REQUEST_TIME_FLOAT'];
echo <<<END
    <script>
    console.log("Generated page in " + $tt.toFixed(5) + " seconds.");
    </script>
END;

die();
}

function img_src($src, $root = "" ) {
    if (empty($root)) $root = $_SERVER['REQUEST_URI'];
    if ($root == "/") $root = "";

    if (substr($root, -1) == '/') $root = substr($root, 0, -1);

    if ($src[0] != '/') {
        $write = "$root/$src";
    } else $write = $src;

return $write;
}

function page_locked($page) {
  if (file_exists("$page.lock" ))
    return true;

  while ($page != "" && is_dir($page)) {
    $files = scandir($page);

    if (!$files)
        goto CONT;

    for ($i = 2; $i < count($files); $i++) {
        if ($files[$i] == "lock") {
            return true;
        }
    }

    CONT:
    $page = substr($page, 0, strrpos($page, '/'));
  }

  return false;
}

function gen_images($src) {
    $path = pathinfo($src);



    if (in_array($path['extension'], ["jpg", "jpeg"])) {
       $pwebp = "$path[dirname]/$path[filename].webp";
       $pe = ltrim($src, '/');
       $we = ltrim($pwebp, '/');

       if (!file_exists($we)) {
           exec("convert -quality 80 $pe $we");
       }
   }
}

function make_img($src, $q=80) {
   $p = img_src($src);
   gen_images($p);
   $path = pathinfo($p);
   $pwebp = "$path[dirname]/$path[filename].webp";

   echo <<<END
   <picture>
     <source srcset="$pwebp" type="image/webp" width=100%/>
     <source srcset="$p" type="image/jpeg" width=100% />
     <img src="$p" width=100% />
   </picture>

END;
}

function make_bkgd_img($src, $q=80) {
    $p = img_src($src);

    gen_images($p);
    $path = pathinfo($p);
    $pwebp = "$path[dirname]/$path[filename].webp";

    $pe = ltrim($pwebp, '/');
    $we = ltrim($p, '/');

    return "background-image: url($pe); background-image: -webkit-image-set(url($pwebp) 1x, url($p) 1x)";
}


?>