🦺 Support the <allow_anonymous> element

src/config.rs

@@ -21,18 +21,24 @@ const EXPECTED_DOCTYPE_PARTS: &[&str] = &[
 /// implements [`dbus-daemon`'s Configuration File](https://dbus.freedesktop.org/doc/dbus-daemon.1.html#configuration_file)
 #[derive(Clone, Debug, Default, Deserialize, DeserializeQuery, PartialEq)]
 pub struct BusConfig {
-    /// If true, the bus daemon becomes a real daemon (forks into the background, etc.).
+    /// If `Some`, connections that authenticated using the ANONYMOUS mechanism will be authorized to connect.
+    /// This option has no practical effect unless the ANONYMOUS mechanism has also been enabled using the `auth` option.
+    #[query(".allow_anonymous")]
+    // TODO: consider finding a way to make this `bool` instead of `Option<()>`
+    pub allow_anonymous: Option<()>,
+    /// If `Some`, the bus daemon becomes a real daemon (forks into the background, etc.).
     #[query(".fork")]
     // TODO: consider finding a way to make this `bool` instead of `Option<()>`
     pub fork: Option<()>,
-    /// If true, the bus daemon keeps its original umask when forking.
+    /// If `Some`, the bus daemon keeps its original umask when forking.
     /// This may be useful to avoid affecting the behavior of child processes.
     #[query(".keep_umask")]
     // TODO: consider finding a way to make this `bool` instead of `Option<()>`
     pub keep_umask: Option<()>,
     /// The bus daemon will write its pid to the specified file.
     #[query(".pidfile")]
     pub pidfile: Option<PathBuf>,
+    /// If `Some`, the bus daemon will log to syslog.
     #[query(".syslog")]
     // TODO: consider finding a way to make this `bool` instead of `Option<()>`
     pub syslog: Option<()>,
@@ -156,10 +162,11 @@ mod tests {
     }
 
     #[test]
-    fn bus_config_parse_with_fork_and_keep_umask_and_syslog_ok() {
+    fn bus_config_parse_with_allow_anonymous_and_fork_and_keep_umask_and_syslog_ok() {
         let input = r#"<!DOCTYPE busconfig PUBLIC "-//freedesktop//DTD D-Bus Bus Configuration 1.0//EN"
         "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
         <busconfig>
+            <allow_anonymous />
             <fork />
             <keep_umask/>
             <syslog />
@@ -171,6 +178,7 @@ mod tests {
         assert_eq!(
             busconfig,
             BusConfig {
+                allow_anonymous: Some(()),
                 fork: Some(()),
                 keep_umask: Some(()),
                 syslog: Some(()),