+
+ /**
+ * @param string $cat Config category
+ * @param string $k Config key
+ * @param mixed $default Default value if it isn't set
+ */
+ public function getConfigValue($cat, $k, $default = null)
+ {
+ $return = $default;
+
+ if ($cat === 'config') {
+ if (isset($this->config[$k])) {
+ $return = $this->config[$k];
+ }
+ } else {
+ if (isset($this->config[$cat][$k])) {
+ $return = $this->config[$cat][$k];
+ }
+ }
+
+ return $return;
+ }
+
+ /**
+ * Sets a default value in the config cache. Ignores already existing keys.
+ *
+ * @param string $cat Config category
+ * @param string $k Config key
+ * @param mixed $v Default value to set
+ */
+ private function setDefaultConfigValue($cat, $k, $v)
+ {
+ if (!isset($this->config[$cat][$k])) {
+ $this->setConfigValue($cat, $k, $v);
+ }
+ }
+
+ /**
+ * Sets a value in the config cache. Accepts raw output from the config table
+ *
+ * @param string $cat Config category
+ * @param string $k Config key
+ * @param mixed $v Value to set
+ */
+ public function setConfigValue($cat, $k, $v)
+ {
+ // Only arrays are serialized in database, so we have to unserialize sparingly
+ $value = is_string($v) && preg_match("|^a:[0-9]+:{.*}$|s", $v) ? unserialize($v) : $v;
+
+ if ($cat === 'config') {
+ $this->config[$k] = $value;
+ } else {
+ if (!isset($this->config[$cat])) {
+ $this->config[$cat] = [];
+ }
+
+ $this->config[$cat][$k] = $value;
+ }
+ }
+
+ /**
+ * Deletes a value from the config cache
+ *
+ * @param string $cat Config category
+ * @param string $k Config key
+ */
+ public function deleteConfigValue($cat, $k)
+ {
+ if ($cat === 'config') {
+ if (isset($this->config[$k])) {
+ unset($this->config[$k]);
+ }
+ } else {
+ if (isset($this->config[$cat][$k])) {
+ unset($this->config[$cat][$k]);
+ }
+ }
+ }
+
+
+ /**
+ * Retrieves a value from the user config cache
+ *
+ * @param int $uid User Id
+ * @param string $cat Config category
+ * @param string $k Config key
+ * @param mixed $default Default value if key isn't set
+ */
+ public function getPConfigValue($uid, $cat, $k, $default = null)
+ {
+ $return = $default;
+
+ if (isset($this->config[$uid][$cat][$k])) {
+ $return = $this->config[$uid][$cat][$k];
+ }
+
+ return $return;
+ }
+
+ /**
+ * Sets a value in the user config cache
+ *
+ * Accepts raw output from the pconfig table
+ *
+ * @param int $uid User Id
+ * @param string $cat Config category
+ * @param string $k Config key
+ * @param mixed $v Value to set
+ */
+ public function setPConfigValue($uid, $cat, $k, $v)
+ {
+ // Only arrays are serialized in database, so we have to unserialize sparingly
+ $value = is_string($v) && preg_match("|^a:[0-9]+:{.*}$|s", $v) ? unserialize($v) : $v;
+
+ if (!isset($this->config[$uid]) || !is_array($this->config[$uid])) {
+ $this->config[$uid] = [];
+ }
+
+ if (!isset($this->config[$uid][$cat]) || !is_array($this->config[$uid][$cat])) {
+ $this->config[$uid][$cat] = [];
+ }
+
+ $this->config[$uid][$cat][$k] = $value;
+ }
+
+ /**
+ * Deletes a value from the user config cache
+ *
+ * @param int $uid User Id
+ * @param string $cat Config category
+ * @param string $k Config key
+ */
+ public function deletePConfigValue($uid, $cat, $k)
+ {
+ if (isset($this->config[$uid][$cat][$k])) {
+ unset($this->config[$uid][$cat][$k]);
+ }
+ }
+
+ /**
+ * Generates the site's default sender email address
+ *
+ * @return string
+ */
+ public function getSenderEmailAddress()
+ {
+ $sender_email = Config::get('config', 'sender_email');
+ if (empty($sender_email)) {
+ $hostname = $this->get_hostname();
+ if (strpos($hostname, ':')) {
+ $hostname = substr($hostname, 0, strpos($hostname, ':'));
+ }
+
+ $sender_email = 'noreply@' . $hostname;
+ }
+
+ return $sender_email;
+ }
+
+ /**
+ * Returns the current theme name.
+ *
+ * @return string
+ */
+ public function getCurrentTheme()
+ {
+ if (App\Mode::isInstall()) {
+ return '';
+ }
+
+ //// @TODO Compute the current theme only once (this behavior has
+ /// already been implemented, but it didn't work well -
+ /// https://github.com/friendica/friendica/issues/5092)
+ $this->computeCurrentTheme();
+
+ return $this->current_theme;
+ }
+
+ /**
+ * Computes the current theme name based on the node settings, the user settings and the device type
+ *
+ * @throws Exception
+ */
+ private function computeCurrentTheme()
+ {
+ $system_theme = Config::get('system', 'theme');
+ if (!$system_theme) {
+ throw new Exception(L10n::t('No system theme config value set.'));
+ }
+
+ // Sane default
+ $this->current_theme = $system_theme;
+
+ $allowed_themes = explode(',', Config::get('system', 'allowed_themes', $system_theme));
+
+ $page_theme = null;
+ // Find the theme that belongs to the user whose stuff we are looking at
+ if ($this->profile_uid && ($this->profile_uid != local_user())) {
+ // Allow folks to override user themes and always use their own on their own site.
+ // This works only if the user is on the same server
+ $user = DBA::selectFirst('user', ['theme'], ['uid' => $this->profile_uid]);
+ if (DBA::isResult($user) && !PConfig::get(local_user(), 'system', 'always_my_theme')) {
+ $page_theme = $user['theme'];
+ }
+ }
+
+ $user_theme = Core\Session::get('theme', $system_theme);
+
+ // Specific mobile theme override
+ if (($this->is_mobile || $this->is_tablet) && Core\Session::get('show-mobile', true)) {
+ $system_mobile_theme = Config::get('system', 'mobile-theme');
+ $user_mobile_theme = Core\Session::get('mobile-theme', $system_mobile_theme);
+
+ // --- means same mobile theme as desktop
+ if (!empty($user_mobile_theme) && $user_mobile_theme !== '---') {
+ $user_theme = $user_mobile_theme;
+ }
+ }
+
+ if ($page_theme) {
+ $theme_name = $page_theme;
+ } else {
+ $theme_name = $user_theme;
+ }
+
+ if ($theme_name
+ && in_array($theme_name, $allowed_themes)
+ && (file_exists('view/theme/' . $theme_name . '/style.css')
+ || file_exists('view/theme/' . $theme_name . '/style.php'))
+ ) {
+ $this->current_theme = $theme_name;
+ }
+ }
+
+ /**
+ * @brief Return full URL to theme which is currently in effect.
+ *
+ * Provide a sane default if nothing is chosen or the specified theme does not exist.
+ *
+ * @return string
+ */
+ public function getCurrentThemeStylesheetPath()
+ {
+ return Core\Theme::getStylesheetPath($this->getCurrentTheme());
+ }