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  1. <?php
  2.  
  3. /*
  4.  * OIDplus 2.0
  5.  * Copyright 2019 Daniel Marschall, ViaThinkSoft
  6.  *
  7.  * Licensed under the Apache License, Version 2.0 (the "License");
  8.  * you may not use this file except in compliance with the License.
  9.  * You may obtain a copy of the License at
  10.  *
  11.  *     http://www.apache.org/licenses/LICENSE-2.0
  12.  *
  13.  * Unless required by applicable law or agreed to in writing, software
  14.  * distributed under the License is distributed on an "AS IS" BASIS,
  15.  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16.  * See the License for the specific language governing permissions and
  17.  * limitations under the License.
  18.  */
  19.  
  20. use MatthiasMullie\Minify;
  21.  
  22. require_once __DIR__ . '/includes/oidplus.inc.php';
  23. require_once __DIR__ . '/3p/minify/path-converter/ConverterInterface.php';
  24. require_once __DIR__ . '/3p/minify/path-converter/Converter.php';
  25. require_once __DIR__ . '/3p/minify/src/Minify.php';
  26. require_once __DIR__ . '/3p/minify/src/CSS.php';
  27. require_once __DIR__ . '/3p/minify/src/Exception.php';
  28.  
  29. error_reporting(E_ALL);
  30.  
  31. $out = '';
  32.  
  33. # ---
  34.  
  35. function process_file($filename) {
  36.         $dir = dirname((strpos($filename, __DIR__.'/') === 0) ? substr($filename, strlen(__DIR__.'/')) : $filename);
  37.         if (OIDplus::baseConfig()->getValue('MINIFY_CSS', true)) {
  38.                 $minifier = new Minify\CSS($filename);
  39.                 $cont = $minifier->minify();
  40.                 $cont = str_ireplace("url(data:", "url###(data:", $cont);
  41.                 $cont = str_ireplace("url(", "url(".$dir.'/', $cont);
  42.         } else {
  43.                 $cont = file_get_contents($filename);
  44.                 $cont = str_ireplace('url("data:', 'url###("data:', $cont);
  45.                 $cont = str_ireplace('url("', 'url("'.$dir.'/', $cont);
  46.                 $cont = str_ireplace("url('data:", "url###('data:", $cont);
  47.                 $cont = str_ireplace("url('", "url('".$dir.'/', $cont);
  48.         }
  49.         $cont = str_ireplace("url###(", "url(", $cont);
  50.         return $cont."\n\n";
  51. }
  52.  
  53. # ---
  54.  
  55. if (file_exists(__DIR__ . '/oidplus_base.local.css')) {
  56.         $out .= process_file(__DIR__ . '/oidplus_base.local.css');
  57. } else {
  58.         $out .= process_file(__DIR__ . '/oidplus_base.css');
  59. }
  60.  
  61. $manifests = OIDplus::getAllPluginManifests('*Pages', true);
  62. foreach ($manifests as $manifest) {
  63.         foreach ($manifest->getCSSFiles() as $css_file) {
  64.                 $out .= process_file($css_file);
  65.         }
  66. }
  67.  
  68. $out .= process_file(__DIR__ . '/3p/jstree/themes/default/style.css');
  69. $out .= process_file(__DIR__ . '/3p/jquery-ui/jquery-ui.css');
  70. $out .= process_file(__DIR__ . '/3p/bootstrap/css/bootstrap.css');
  71.  
  72. # ---
  73.  
  74. $inv = isset($_REQUEST['invert']) ? $_REQUEST['invert'] : 0;
  75. if ($inv != 0) {
  76.         $out = invertColorsOfCSS($out);
  77. }
  78.  
  79. $hs = isset($_REQUEST['h_shift']) ? $_REQUEST['h_shift'] : 0;
  80. $ss = isset($_REQUEST['s_shift']) ? $_REQUEST['s_shift'] : 0;
  81. $vs = isset($_REQUEST['v_shift']) ? $_REQUEST['v_shift'] : 0;
  82. if (($hs != 0) ||($ss != 0) || ($vs != 0)) {
  83.         $out = changeHueOfCSS($out, $hs, $ss, $vs);
  84. }
  85.  
  86. # ---
  87.  
  88. $etag = md5($out);
  89. header("Etag: $etag");
  90. if (isset($_SERVER['HTTP_IF_NONE_MATCH']) && (trim($_SERVER['HTTP_IF_NONE_MATCH']) == $etag)) {
  91.         header("HTTP/1.1 304 Not Modified");
  92. } else {
  93.         header('Content-Type:text/css');
  94.         echo $out;
  95. }
  96.