Router, Add wellknow, fix compile errors

router/src/wellknown/atproto.rs

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+pub mod handle_resolution;

router/src/wellknown/atproto/handle_resolution.rs

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+use crate::{
+  wellknown::WellKnownEndpoint,
+  Error,
+};
+use atproto::types::{Handle, Did};
+use axum::{
+  routing::{
+    method_routing::MethodRouter,
+    get,
+  },
+  http::{
+    StatusCode,
+    HeaderMap,
+  },
+};
+
+pub struct HandleResolutionEndpoint {
+  resolver: MethodRouter,
+}
+
+impl HandleResolutionEndpoint {
+  pub fn new<HR>(handle_resolver: HR) -> Self where
+  HR: HandleResolver + Clone
+  {
+    HandleResolutionEndpoint {
+      resolver: get(async move | headers: HeaderMap | -> (StatusCode, String) {
+        let Some(Ok(hostname)) = headers.get("host").map(|header_value| {
+          header_value.to_str()
+        }) else {
+          return (StatusCode::INTERNAL_SERVER_ERROR, String::from("Internal Server Error"));
+        };
+        let Ok(valid_handle) = hostname.parse::<atproto::types::Handle>() else {
+          return (StatusCode::NOT_FOUND, String::from("User not found"));
+        };
+        match handle_resolver.call(valid_handle) {
+          Ok(Some(did)) => (StatusCode::OK, did.to_string()),
+          Ok(None) => (StatusCode::NOT_FOUND, String::from("User not found")),
+          Err(_) => (StatusCode::INTERNAL_SERVER_ERROR, String::from("Internal Server Error")),
+        }
+      })
+    }
+  }
+}
+
+pub trait HandleResolver: Send + Sync + 'static {
+  fn call(&self, handle: Handle) -> Result<Option<Did>, Error>;
+}
+
+impl WellKnownEndpoint for HandleResolutionEndpoint {
+  fn get_known_route(&self) -> String { String::from("atproto-did") }
+  fn get_resolver(self) -> MethodRouter { self.resolver }
+}

router/src/wellknown/oauth.rs

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+pub mod authorization_server;

router/src/wellknown/oauth/authorization_server.rs

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+
+