friendica/view/theme/frio/style.php

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<?php
/**
* @copyright Copyright (C) 2020, Friendica
*
* @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/>.
*
*/
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use Friendica\DI;
use Friendica\Util\Strings;
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require_once 'view/theme/frio/php/PHPColors/Color.php';
$scheme = '';
$schemecss = '';
$schemecssfile = false;
$scheme_modified = 0;
DI::config()->load('frio');
// Default to hard-coded values for empty settings
$scheme = DI::config()->get('frio', 'scheme', DI::config()->get('frio', 'schema'));
$nav_bg = DI::config()->get('frio', 'nav_bg') ?: '#708fa0';
$nav_icon_color = DI::config()->get('frio', 'nav_icon_color') ?: '#ffffff';
$link_color = DI::config()->get('frio', 'link_color') ?: '#6fdbe8';
$background_color = DI::config()->get('frio', 'background_color') ?: '#ededed';
$contentbg_transp = DI::config()->get('frio', 'contentbg_transp') ?: '';
$background_image = DI::config()->get('frio', 'background_image') ?: 'img/none.png';
$bg_image_option = DI::config()->get('frio', 'bg_image_option') ?: '';
$login_bg_image = DI::config()->get('frio', 'login_bg_image') ?: '';
$login_bg_color = DI::config()->get('frio', 'login_bg_color') ?: '';
$modified = DI::config()->get('frio', 'css_modified') ?: time();
if (!$login_bg_image && !$login_bg_color) {
$login_bg_image = 'img/login_bg.jpg';
}
$login_bg_color = $login_bg_color ?: '#ededed';
// Get the UID of the profile owner.
$uid = $_REQUEST['puid'] ?? 0;
if ($uid) {
DI::pConfig()->load($uid, 'frio');
// Only override display settings that have actually been set
$scheme = DI::pConfig()->get($uid, 'frio', 'scheme', DI::pConfig()->get($uid, 'frio', 'schema')) ?: $scheme;
$nav_bg = DI::pConfig()->get($uid, 'frio', 'nav_bg') ?: $nav_bg;
$nav_icon_color = DI::pConfig()->get($uid, 'frio', 'nav_icon_color') ?: $nav_icon_color;
$link_color = DI::pConfig()->get($uid, 'frio', 'link_color') ?: $link_color;
$background_color = DI::pConfig()->get($uid, 'frio', 'background_color') ?: $background_color;
$contentbg_transp = DI::pConfig()->get($uid, 'frio', 'contentbg_transp') ?: $contentbg_transp;
$background_image = DI::pConfig()->get($uid, 'frio', 'background_image') ?: $background_image;
$bg_image_option = DI::pConfig()->get($uid, 'frio', 'bg_image_option') ?: $bg_image_option;
$modified = DI::pConfig()->get($uid, 'frio', 'css_modified') ?: $modified;
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}
// Now load the scheme. If a value is changed above, we'll keep the settings
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// If not, we'll keep those defined by the scheme
// Setting $scheme to '' wasn't working for some reason, so we'll check it's
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// not --- like the mobile theme does instead.
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// Allow layouts to over-ride the scheme.
if (!empty($_REQUEST['scheme'])) {
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$scheme = $_REQUEST['scheme'];
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}
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$scheme = Strings::sanitizeFilePathItem($scheme);
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if (($scheme) && ($scheme != '---')) {
if (file_exists('view/theme/frio/scheme/' . $scheme . '.php')) {
$schemefile = 'view/theme/frio/scheme/' . $scheme . '.php';
require_once $schemefile;
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}
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if (file_exists('view/theme/frio/scheme/' . $scheme . '.css')) {
$schemecssfile = 'view/theme/frio/scheme/' . $scheme . '.css';
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}
}
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// If we haven't got a scheme, load the default. We shouldn't touch this - we
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// should leave it for admins to define for themselves.
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// default.php and default.css MUST be symlinks to existing scheme files.
if (!$scheme) {
if (file_exists('view/theme/frio/scheme/default.php')) {
$schemefile = 'view/theme/frio/scheme/default.php';
require_once $schemefile;
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}
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if (file_exists('view/theme/frio/scheme/default.css')) {
$schemecssfile = 'view/theme/frio/scheme/default.css';
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}
}
$contentbg_transp = ((isset($contentbg_transp) && $contentbg_transp != '') ? $contentbg_transp : 100);
// Calculate some colors in dependance of existing colors.
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// Some colors are calculated to don't have too many selection
// fields in the theme settings.
if (!isset($menu_background_hover_color)) {
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$mbhc = new Color($nav_bg);
$mcolor = $mbhc->getHex();
if ($mbhc->isLight($mcolor, 75)) {
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$menu_is = 'light';
$menu_background_hover_color = '#' . $mbhc->darken(5);
} else {
$menu_is = 'dark';
$menu_background_hover_color = '#' . $mbhc->lighten(5);
}
}
if (!isset($nav_icon_hover_color)) {
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$nihc = new Color($nav_bg);
if ($nihc->isLight()) {
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$nav_icon_hover_color = '#' . $nihc->darken(10);
} else {
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$nav_icon_hover_color = '#' . $nihc->lighten(10);
}
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}
if (!isset($link_hover_color)) {
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$lhc = new Color($link_color);
$lcolor = $lhc->getHex();
if ($lhc->isLight($lcolor, 75)) {
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$link_hover_color = '#' . $lhc->darken(5);
} else {
$link_hover_color = '#' . $lhc->lighten(5);
}
}
// Convert $bg_image_options into css.
if (!isset($bg_image_option)) {
$bg_image_option = null;
}
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switch ($bg_image_option) {
case 'stretch':
$background_size_img = '100%';
$background_repeat = 'no-repeat';
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break;
case 'cover':
$background_size_img = 'cover';
$background_repeat = 'no-repeat';
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break;
case 'repeat':
$background_size_img = 'auto';
$background_repeat = 'repeat';
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break;
case 'contain':
$background_size_img = 'contain';
$background_repeat = 'repeat';
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break;
default:
$background_size_img = 'auto';
$background_repeat = 'no-repeat';
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break;
}
// Convert transparency level from percentage to opacity value.
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$contentbg_transp = $contentbg_transp / 100;
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$options = [
'$nav_bg' => $nav_bg,
'$nav_icon_color' => $nav_icon_color,
'$nav_icon_hover_color' => $nav_icon_hover_color,
'$link_color' => $link_color,
'$link_hover_color' => $link_hover_color,
'$menu_background_hover_color' => $menu_background_hover_color,
'$btn_primary_color' => $nav_icon_color,
'$btn_primary_hover_color' => $menu_background_hover_color,
'$background_color' => $background_color,
'$contentbg_transp' => $contentbg_transp,
'$background_image' => $background_image,
'$background_size_img' => $background_size_img,
'$background_repeat' => $background_repeat,
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'$login_bg_image' => $login_bg_image,
'$login_bg_color' => $login_bg_color
];
$css_tpl = file_get_contents('view/theme/frio/css/style.css');
// Get the content of the scheme css file and the time of the last file change.
if ($schemecssfile) {
$css_tpl .= file_get_contents($schemecssfile);
$scheme_modified = filemtime($schemecssfile);
}
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// We need to check which is the most recent css data.
// We will use this time later to decide if we load the cached or fresh css data.
if ($scheme_modified > $modified) {
$modified = $scheme_modified;
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}
// Apply the settings to the css template.
$css = str_replace(array_keys($options), array_values($options), $css_tpl);
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$modified = gmdate('r', $modified);
$etag = md5($css);
// Set a header for caching.
header('Cache-Control: public');
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header('ETag: "' . $etag . '"');
header('Last-Modified: ' . $modified);
// Only send the CSS file if it was changed.
/// @todo Check if this works at all (possibly clients are sending only the one or the other header) - compare with mod/photo.php
if (isset($_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)) {
header('HTTP/1.1 304 Not Modified');
exit();
}
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}
echo $css;