1 files changed, 54 insertions, 0 deletions
diff --git a/aero-proto/imap/command/anystate.rs b/aero-proto/imap/command/anystate.rs
new file mode 100644
index 0000000..718ba3f
--- /dev/null
+++ b/aero-proto/imap/command/anystate.rs
@@ -0,0 +1,54 @@
+use anyhow::Result;
+use imap_codec::imap_types::core::Tag;
+use imap_codec::imap_types::response::Data;
+
+use crate::imap::capability::ServerCapability;
+use crate::imap::flow;
+use crate::imap::response::Response;
+
+pub(crate) fn capability(
+    tag: Tag<'static>,
+    cap: &ServerCapability,
+) -> Result<(Response<'static>, flow::Transition)> {
+    let res = Response::build()
+        .tag(tag)
+        .message("Server capabilities")
+        .data(Data::Capability(cap.to_vec()))
+        .ok()?;
+
+    Ok((res, flow::Transition::None))
+}
+
+pub(crate) fn noop_nothing(tag: Tag<'static>) -> Result<(Response<'static>, flow::Transition)> {
+    Ok((
+        Response::build().tag(tag).message("Noop completed.").ok()?,
+        flow::Transition::None,
+    ))
+}
+
+pub(crate) fn logout() -> Result<(Response<'static>, flow::Transition)> {
+    Ok((Response::bye()?, flow::Transition::Logout))
+}
+
+pub(crate) fn not_implemented<'a>(
+    tag: Tag<'a>,
+    what: &str,
+) -> Result<(Response<'a>, flow::Transition)> {
+    Ok((
+        Response::build()
+            .tag(tag)
+            .message(format!("Command not implemented {}", what))
+            .bad()?,
+        flow::Transition::None,
+    ))
+}
+
+pub(crate) fn wrong_state(tag: Tag<'static>) -> Result<(Response<'static>, flow::Transition)> {
+    Ok((
+        Response::build()
+            .tag(tag)
+            .message("Command not authorized in this state")
+            .bad()?,
+        flow::Transition::None,
+    ))
+}