Add conditional help text for disabled fields

src/Core/Config/Model/DatabaseConfig.php

@@ -83,7 +83,7 @@ class DatabaseConfig implements IManageConfigValues
 	/** {@inheritDoc} */
 	public function isSetDisabled(string $cat, string $key): bool
 	{
-		return $this->cache->getSource($cat, $key) >= Cache::SOURCE_ENV;
+		return $this->cache->getSource($cat, $key) >= 0;
 	}
 
 	/** {@inheritDoc} */

src/Module/Admin/Logs/Settings.php

@@ -88,9 +88,9 @@ class Settings extends BaseAdmin
 			'$clear' => DI::l10n()->t('Clear'),
 			'$logname' => DI::config()->get('system', 'logfile'),
 			// see /help/smarty3-templates#1_1 on any Friendica node
-			'$debugging' => ['debugging', DI::l10n()->t("Enable Debugging"), DI::config()->get('system', 'debugging'), "", DI::config()->isSetDisabled('system', 'debugging') ? 'disabled' : ''],
+			'$debugging' => ['debugging', DI::l10n()->t("Enable Debugging"), DI::config()->get('system', 'debugging'), DI::config()->isSetDisabled('system', 'debugging') ? DI::l10n()->t("<strong>Readonly</strong> because set by an environment variable") : '', DI::config()->isSetDisabled('system', 'debugging') ? 'disabled' : ''],
-			'$logfile' => ['logfile', DI::l10n()->t("Log file"), DI::config()->get('system', 'logfile'), DI::l10n()->t("Must be writable by web server. Relative to your Friendica top-level directory."), "", DI::config()->isSetDisabled('system', 'logfile') ? 'disabled' : ''],
+			'$logfile' => ['logfile', DI::l10n()->t("Log file"), DI::config()->get('system', 'logfile'), DI::l10n()->t("Must be writable by web server. Relative to your Friendica top-level directory.") . (DI::config()->isSetDisabled('system', 'logfile') ? '<br>' . DI::l10n()->t("<strong>Readonly</strong> because set by an environment variable") : ''), "", DI::config()->isSetDisabled('system', 'logfile') ? 'disabled' : ''],
-			'$loglevel' => ['loglevel', DI::l10n()->t("Log level"), DI::config()->get('system', 'loglevel'), "", $log_choices, DI::config()->isSetDisabled('system', 'loglevel') ? 'disabled' : ''],
+			'$loglevel' => ['loglevel', DI::l10n()->t("Log level"), DI::config()->get('system', 'loglevel'), DI::config()->isSetDisabled('system', 'loglevel') ? DI::l10n()->t("<strong>Readonly</strong> because set by an environment variable") : '', $log_choices, DI::config()->isSetDisabled('system', 'loglevel') ? 'disabled' : ''],
 			'$form_security_token' => self::getFormSecurityToken("admin_logs"),
 			'$phpheader' => DI::l10n()->t("PHP logging"),
 			'$phphint' => DI::l10n()->t("To temporarily enable logging of PHP errors and warnings you can prepend the following to the index.php file of your installation. The filename set in the 'error_log' line is relative to the friendica top-level directory and must be writeable by the web server. The option '1' for 'log_errors' and 'display_errors' is to enable these options, set to '0' to disable them."),

src/Module/Admin/Site.php

@@ -417,7 +417,7 @@ class Site extends BaseAdmin
 			'$relocate_cmd'      => DI::l10n()->t('(Friendica directory)# bin/console relocate https://newdomain.com'),
 
 			// name, label, value, help string, extra data...
-			'$sitename'         => ['sitename', DI::l10n()->t('Site name'), DI::config()->get('config', 'sitename'), '', '', DI::config()->isSetDisabled('config', 'sitename') ? 'disabled' : ''],
+			'$sitename'         => ['sitename', DI::l10n()->t('Site name'), DI::config()->get('config', 'sitename'), DI::config()->isSetDisabled('config', 'sitename') ? DI::l10n()->t("<strong>Readonly</strong> because set by an environment variable") : '', '', DI::config()->isSetDisabled('config', 'sitename') ? 'disabled' : ''],
 			'$sender_email'     => ['sender_email', DI::l10n()->t('Sender Email'), DI::config()->get('config', 'sender_email'), DI::l10n()->t('The email address your server shall use to send notification emails from.'), '', '', 'email'],
 			'$system_actor_name' => ['system_actor_name', DI::l10n()->t('Name of the system actor'), User::getActorName(), DI::l10n()->t("Name of the internal system account that is used to perform ActivityPub requests. This must be an unused username. If set, this can't be changed again.")],
 			'$banner'           => ['banner', DI::l10n()->t('Banner/Logo'), $banner, ''],
@@ -425,7 +425,7 @@ class Site extends BaseAdmin
 			'$shortcut_icon'    => ['shortcut_icon', DI::l10n()->t('Shortcut icon'), DI::config()->get('system', 'shortcut_icon'), DI::l10n()->t('Link to an icon that will be used for browsers.')],
 			'$touch_icon'       => ['touch_icon', DI::l10n()->t('Touch icon'), DI::config()->get('system', 'touch_icon'), DI::l10n()->t('Link to an icon that will be used for tablets and mobiles.')],
 			'$additional_info'  => ['additional_info', DI::l10n()->t('Additional Info'), $additional_info, DI::l10n()->t('For public servers: you can add additional information here that will be listed at %s/servers.', Search::getGlobalDirectory())],
-			'$language'         => ['language', DI::l10n()->t('System language'), DI::config()->get('system', 'language'), '', $lang_choices, DI::config()->isSetDisabled('system', 'language') ? 'disabled' : ''],
+			'$language'         => ['language', DI::l10n()->t('System language'), DI::config()->get('system', 'language'), DI::config()->isSetDisabled('system', 'language') ? DI::l10n()->t("<strong>Readonly</strong> because set by an environment variable") : '', $lang_choices, DI::config()->isSetDisabled('system', 'language') ? 'disabled' : ''],
 			'$theme'            => ['theme', DI::l10n()->t('System theme'), DI::config()->get('system', 'theme'), DI::l10n()->t('Default system theme - may be over-ridden by user profiles - <a href="%s" id="cnftheme">Change default theme settings</a>', DI::baseUrl() . '/admin/themes'), $theme_choices],
 			'$theme_mobile'     => ['theme_mobile', DI::l10n()->t('Mobile system theme'), DI::config()->get('system', 'mobile-theme', '---'), DI::l10n()->t('Theme for mobile devices'), $theme_choices_mobile],
 			'$force_ssl'        => ['force_ssl', DI::l10n()->t('Force SSL'), DI::config()->get('system', 'force_ssl'), DI::l10n()->t('Force all Non-SSL requests to SSL - Attention: on some systems it could lead to endless loops.')],

src/Module/Admin/Storage.php

@@ -146,6 +146,7 @@ class Storage extends BaseAdmin
 			'$save_reload'           => DI::l10n()->t('Save & Reload'),
 			'$noconfig'              => DI::l10n()->t('This backend doesn\'t have custom settings'),
 			'$form_security_token'   => self::getFormSecurityToken("admin_storage"),
+			'$storagebackend_ro_txt' => DI::config()->isSetDisabled('storage', 'name') ? DI::l10n()->t("Changing the current backend is prohibited because it is set by an environment variable") : '',
 			'$storagebackend'        => $current_storage_backend instanceof ICanWriteToStorage ? $current_storage_backend::getName() : DI::l10n()->t('Database (legacy)'),
 			'$availablestorageforms' => $available_storage_forms,
 		]);

view/templates/admin/storage.tpl

@@ -2,6 +2,7 @@
 	<h1>{{$title}} - {{$page}}</h1>
 
 		<h2>{{$label_current}}: <b>{{$storagebackend}}</b></h2>
+		{{$storagebackend_ro_txt nofilter}}
 
 		<h2>{{$label_config}}</h2>
 

view/theme/frio/templates/admin/storage.tpl

@@ -5,6 +5,9 @@
 
 	<div class="well well-lg">
         	{{$label_current}}: <b>{{$storagebackend}}</b>
+			{{if $storagebackend_ro_txt}}
+			<p><p><i>{{$storagebackend_ro_txt nofilter}}</i>
+			{{/if}}
 	</div>
 
 		<h2>{{$label_config}}</h2>