Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
/**
* @file src/Core/Theme.php
*/
namespace Friendica\Core;
use Friendica\DI;
use Friendica\Model\Profile;
use Friendica\Util\Strings;
require_once 'boot.php';
/**
* Some functions to handle themes
*/
class Theme
{
public static function getAllowedList()
{
$allowed_themes_str = Config::get('system', 'allowed_themes');
$allowed_themes_raw = explode(',', str_replace(' ', '', $allowed_themes_str));
$allowed_themes = [];
if (count($allowed_themes_raw)) {
foreach ($allowed_themes_raw as $theme) {
$theme = Strings::sanitizeFilePathItem(trim($theme));
if (strlen($theme) && is_dir("view/theme/$theme")) {
$allowed_themes[] = $theme;
}
}
}
return array_unique($allowed_themes);
}
public static function setAllowedList(array $allowed_themes)
{
Config::set('system', 'allowed_themes', implode(',', array_unique($allowed_themes)));
}
/**
* @brief Parse theme comment in search of theme infos.
*
* like
* \code
* ..* Name: My Theme
* * Description: My Cool Theme
* . * Version: 1.2.3
* * Author: John <profile url>
* * Maintainer: Jane <profile url>
* *
* \endcode
* @param string $theme the name of the theme
* @return array
*/
public static function getInfo($theme)
{
$theme = Strings::sanitizeFilePathItem($theme);
$info = [
'name' => $theme,
'description' => "",
'author' => [],
'maintainer' => [],
'version' => "",
'credits' => "",
'experimental' => file_exists("view/theme/$theme/experimental"),
'unsupported' => file_exists("view/theme/$theme/unsupported")
];
if (!is_file("view/theme/$theme/theme.php")) {
return $info;
}
$stamp1 = microtime(true);
$theme_file = file_get_contents("view/theme/$theme/theme.php");
DI::profiler()->saveTimestamp($stamp1, "file", System::callstack());
$result = preg_match("|/\*.*\*/|msU", $theme_file, $matches);
if ($result) {
$comment_lines = explode("\n", $matches[0]);
foreach ($comment_lines as $comment_line) {
$comment_line = trim($comment_line, "\t\n\r */");
if ($comment_line != "") {
list($key, $value) = array_map("trim", explode(":", $comment_line, 2));
$key = strtolower($key);
if ($key == "author") {
$result = preg_match("|([^<]+)<([^>]+)>|", $value, $matches);
if ($result) {
$info['author'][] = ['name' => $matches[1], 'link' => $matches[2]];
} else {
$info['author'][] = ['name' => $value];
}
} elseif ($key == "maintainer") {
$result = preg_match("|([^<]+)<([^>]+)>|", $value, $matches);
if ($result) {
$info['maintainer'][] = ['name' => $matches[1], 'link' => $matches[2]];
} else {
$info['maintainer'][] = ['name' => $value];
}
} elseif (array_key_exists($key, $info)) {
$info[$key] = $value;
}
}
}
}
return $info;
}
/**
* @brief Returns the theme's screenshot.
*
* The screenshot is expected as view/theme/$theme/screenshot.[png|jpg].
*
* @param string $theme The name of the theme
* @return string
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
public static function getScreenshot($theme)
{
$theme = Strings::sanitizeFilePathItem($theme);
$exts = ['.png', '.jpg'];
foreach ($exts as $ext) {
if (file_exists('view/theme/' . $theme . '/screenshot' . $ext)) {
return DI::baseUrl() . '/view/theme/' . $theme . '/screenshot' . $ext;
}
}
return DI::baseUrl() . '/images/blank.png';
}
public static function uninstall($theme)
{
$theme = Strings::sanitizeFilePathItem($theme);
// silently fail if theme was removed or if $theme is funky
if (file_exists("view/theme/$theme/theme.php")) {
include_once "view/theme/$theme/theme.php";
$func = "{$theme}_uninstall";
if (function_exists($func)) {
$func();
}
}
$allowed_themes = Theme::getAllowedList();
$key = array_search($theme, $allowed_themes);
if ($key !== false) {
unset($allowed_themes[$key]);
Theme::setAllowedList($allowed_themes);
}
}
public static function install($theme)
{
$theme = Strings::sanitizeFilePathItem($theme);
// silently fail if theme was removed or if $theme is funky
if (!file_exists("view/theme/$theme/theme.php")) {
return false;
}
try {
include_once "view/theme/$theme/theme.php";
$func = "{$theme}_install";
if (function_exists($func)) {
$func();
}
$allowed_themes = Theme::getAllowedList();
$allowed_themes[] = $theme;
Theme::setAllowedList($allowed_themes);
return true;
} catch (\Exception $e) {
Logger::error('Theme installation failed', ['theme' => $theme, 'error' => $e->getMessage()]);
return false;
}
}
/**
* @brief Get the full path to relevant theme files by filename
*
* This function searches in order in the current theme directory, in the current theme parent directory, and lastly
* in the base view/ folder.
*
* @param string $file Filename
* @return string Path to the file or empty string if the file isn't found
* @throws \Exception
*/
public static function getPathForFile($file)
{
$a = DI::app();
$theme = $a->getCurrentTheme();
$parent = Strings::sanitizeFilePathItem($a->theme_info['extends'] ?? $theme);
$paths = [
"view/theme/$theme/$file",
"view/theme/$parent/$file",
"view/$file",
];
foreach ($paths as $path) {
if (file_exists($path)) {
return $path;
}
}
return '';
}
/**
* @brief Return relative path to theme stylesheet file
*
* Provide a sane default if nothing is chosen or the specified theme does not exist.
*
* @param string $theme Theme name
*
* @return string
*/
public static function getStylesheetPath($theme)
{
$theme = Strings::sanitizeFilePathItem($theme);
if (!file_exists('view/theme/' . $theme . '/style.php')) {
return 'view/theme/' . $theme . '/style.css';
}
$a = DI::app();
$query_params = [];
$puid = Profile::getThemeUid($a);
if ($puid) {
$query_params['puid'] = $puid;
}
return 'view/theme/' . $theme . '/style.pcss' . (!empty($query_params) ? '?' . http_build_query($query_params) : '');
}
}