move ApiConfig, FileLogger and CommandoSocket to proxmox-rest-server workspace

ApiConfig: avoid using  pbs_config::backup_user()
CommandoSocket: avoid using  pbs_config::backup_user()
FileLogger: avoid using  pbs_config::backup_user()
- use atomic_open_or_create_file()

Auth Trait: moved definitions to proxmox-rest-server/src/lib.rs
- removed CachedUserInfo patrameter
- return user as String (not Authid)

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>

proxmox-rest-server/src/lib.rs

@@ -0,0 +1,54 @@
+use anyhow::{bail, Error};
+
+mod state;
+pub use state::*;
+
+mod command_socket;
+pub use command_socket::*;
+
+mod file_logger;
+pub use file_logger::{FileLogger, FileLogOptions};
+
+mod api_config;
+pub use api_config::ApiConfig;
+
+pub enum AuthError {
+    Generic(Error),
+    NoData,
+}
+
+impl From<Error> for AuthError {
+    fn from(err: Error) -> Self {
+        AuthError::Generic(err)
+    }
+}
+
+pub trait ApiAuth {
+    fn check_auth(
+        &self,
+        headers: &http::HeaderMap,
+        method: &hyper::Method,
+    ) -> Result<String, AuthError>;
+}
+
+static mut SHUTDOWN_REQUESTED: bool = false;
+
+pub fn request_shutdown() {
+    unsafe {
+        SHUTDOWN_REQUESTED = true;
+    }
+    crate::server_shutdown();
+}
+
+#[inline(always)]
+pub fn shutdown_requested() -> bool {
+    unsafe { SHUTDOWN_REQUESTED }
+}
+
+pub fn fail_on_shutdown() -> Result<(), Error> {
+    if shutdown_requested() {
+        bail!("Server shutdown requested - aborting task");
+    }
+    Ok(())
+}
+