tcl_update_db/index.php

<?php

require_once __DIR__ . '/lib/autoloader.php';

use \TclUpdates\XmlParser;

if ($_SERVER['REQUEST_METHOD'] == 'POST') {
    $input_xml = file_get_contents('php://input', false, null, -1, 8192);   // read max 8 KiB
    if (strlen($input_xml) >= 8192) {
        // Max length, probably even longer, definitely no data we want
        http_response_code(413);   // "Payload too large"
        exit;
    }
    $xp = new XmlParser();
    $load_ok = $xp->loadXmlFromString($input_xml);
    if (!$load_ok) {
        // XML could not be parsed - invalid or no XML
        http_response_code(406);   // "Not acceptable"
        exit;
    }
    if (!$xp->validateGOTU()) {
        // No root node or root node isn't <GOTU>, so no update XML
        http_response_code(412);   // "Precondition failed"
        exit;
    }
    // ### At this point we can be relatively sure to have the XML we want
    echo "Input length is " . strlen($input_xml) . " Bytes." . PHP_EOL;
    #echo $input_xml . PHP_EOL;

    // Write backup copy (for maybe re-parsing later)
    $bkup_dir = __DIR__ . '/data/';
    if (!is_dir($bkup_dir)) {
        mkdir($bkup_dir);
    }
    $bkup_filename = $bkup_dir . sprintf('%f-%04x.xml', microtime(true), rand(0, 65535));
    file_put_contents($bkup_filename, $input_xml);

    // TODO: Parse XML into database

    exit;
}

echo "Here is the normal page. " . $_SERVER['REQUEST_METHOD'];


// TODO: Show statistics from database