lib/jssourcemap.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 /**
  18  * This file is serving the javascript source map.
  19  *
  20  * @package    core
  21  * @copyright  2019 Ryan Wyllie
  22  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  */
  24
  25 // Disable moodle specific debug messages and any errors in output,
  26 // comment out when debugging or better look into error log!
  27 define('NO_DEBUG_DISPLAY', true);
  28
  29 // We need just the values from config.php and minlib.php.
  30 define('ABORT_AFTER_CONFIG', true);
  31 require('../config.php'); // This stops immediately at the beginning of lib/setup.php.
  32 require_once("$CFG->dirroot/lib/classes/requirejs.php");
  33
  34 $slashargument = min_get_slash_argument();
  35 if (!$slashargument) {
  36     // The above call to min_get_slash_argument should always work.
  37     die('Invalid request');
  38 }
  39
  40 $slashargument = ltrim($slashargument, '/');
  41 // Split into revision and module name.
  42 [$file] = explode('/', $slashargument, 1);
  43 $file = '/' . min_clean_param($file, 'SAFEPATH');
  44
  45 // Only load js files from the js modules folder from the components.
  46 [$unused, $component, $module] = explode('/', $file, 3);
  47
  48 // When running a lazy load, we only deal with one file so we can just return the working sourcemap.
  49 $jsfiles = core_requirejs::find_one_amd_module($component, $module);
  50 $jsfile = reset($jsfiles);
  51
  52 $mapfile = $jsfile . '.map';
  53
  54 if (file_exists($mapfile)) {
  55     $mapdata = file_get_contents($mapfile);
  56     $mapdata = json_decode($mapdata, true);
  57
  58     $shortfilename = str_replace($CFG->dirroot, '', $jsfile);
  59     $srcfilename = str_replace('/amd/build/', '/amd/src/', $shortfilename);
  60     $srcfilename = str_replace('.min.js', '.js', $srcfilename);
  61     $fullsrcfilename = $CFG->wwwroot . $srcfilename;
  62     $mapdata['sources'][0] = $fullsrcfilename;
  63
  64     echo json_encode($mapdata);
  65 } else {
  66     // If there is no source map file, then we will not generate one for you, sorry.
  67     header('HTTP/1.0 404 not found');
  68 }