Merge pull request #12501 from MarekBenjamin/improve-registraiton-text-input

[friendica.git] / view / theme / vier / style.php

diff --git a/view/theme/vier/style.php b/view/theme/vier/style.php
index 72731a9bebc9843d3c7949c7a53e7a9abfe16593..74975893ce8ac6d17a288a2562d94ee58f6cfdad 100644 (file)
--- a/view/theme/vier/style.php
+++ b/view/theme/vier/style.php
@@ -1,28 +1,73 @@
 <?php
+/**
+ * @copyright Copyright (C) 2010-2022, the Friendica project
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
 
-if (file_exists("$THEMEPATH//style.css")){
-       echo file_get_contents("$THEMEPATH//style.css");
+use Friendica\Core\Logger;
+use Friendica\DI;
+use Friendica\Network\HTTPException\NotModifiedException;
+
+/*
+ * This script can be included when the maintenance mode is on, which requires us to avoid any config call and
+ * use the following hardcoded default
+ */
+$style = 'plus';
+
+if (DI::mode()->has(\Friendica\App\Mode::MAINTENANCEDISABLED)) {
+       $uid = $_REQUEST['puid'] ?? 0;
+
+       $style = DI::pConfig()->get($uid, 'vier', 'style', DI::config()->get('vier', 'style', $style));
 }
 
-$uid = get_theme_uid();
+$stylecss = '';
+$modified = '';
 
-$style = get_pconfig( $uid, 'vier', 'style');
+$style = \Friendica\Util\Strings::sanitizeFilePathItem($style);
 
-if ($style == "")
-       $style = get_config('vier', 'style');
+foreach (['style', $style] as $file) {
+       $stylecssfile = $THEMEPATH . DIRECTORY_SEPARATOR . $file .'.css';
+       if (file_exists($stylecssfile)) {
+               $stylecss .= file_get_contents($stylecssfile);
+               $stylemodified = filemtime($stylecssfile);
+               if ($stylemodified > $modified) {
+                       $modified = $stylemodified;
+               }
+       } else {
+               Logger::warning('Missing CSS file', ['file' => $stylecssfile, 'uid' => $uid]);
+       }
+}
+$modified = gmdate('r', $modified);
+
+$etag = md5($stylecss);
 
-if ($style == "")
-       $style = "plus";
+// Only send the CSS file if it was changed
+header('Cache-Control: public');
+header('ETag: "'.$etag.'"');
+header('Last-Modified: '.$modified);
 
-if ($style == "flat")
-       $stylecss = file_get_contents('view/theme/vier/flat.css');
-else if ($style == "netcolour")
-       $stylecss = file_get_contents('view/theme/vier/netcolour.css');
-else if ($style == "breathe")
-       $stylecss = file_get_contents('view/theme/vier/breathe.css');
-else if ($style == "plus")
-       $stylecss = file_get_contents('view/theme/vier/plus.css');
-else if ($style == "dark")
-       $stylecss = file_get_contents('view/theme/vier/dark.css');
+if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) && isset($_SERVER['HTTP_IF_NONE_MATCH'])) {
+       $cached_modified = gmdate('r', strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']));
+       $cached_etag = str_replace(['"', "-gzip"], ['', ''],
+                               stripslashes($_SERVER['HTTP_IF_NONE_MATCH']));
 
+       if (($cached_modified == $modified) && ($cached_etag == $etag)) {
+               throw new NotModifiedException();
+       }
+}
 echo $stylecss;