From 9ca31fd3713ed9bcf1e1eb601c022afcb4fc4d74 Mon Sep 17 00:00:00 2001
From: Bryan Newbold <bnewbold@robocracy.org>
Date: Wed, 9 Nov 2022 15:47:22 -0800
Subject: pds: session.get and handle.resolve XRPC endpoints

---
 adenosine-pds/src/db.rs  | 26 ++++++++++++++++++++++++++
 adenosine-pds/src/lib.rs | 32 ++++++++++++++++++--------------
 2 files changed, 44 insertions(+), 14 deletions(-)

(limited to 'adenosine-pds/src')

diff --git a/adenosine-pds/src/db.rs b/adenosine-pds/src/db.rs
index 051588d..b94689a 100644
--- a/adenosine-pds/src/db.rs
+++ b/adenosine-pds/src/db.rs
@@ -138,6 +138,32 @@ impl AtpDatabase {
         Ok(did_maybe.map(|v| Did::from_str(&v).expect("valid DID in database")))
     }
 
+    /// Looks up local account handle associated with a DID
+    ///
+    /// TODO: remote lookups, and/or local cache of external DIDs
+    pub fn resolve_did(&mut self, did: &Did) -> Result<Option<String>> {
+        let mut stmt = self
+            .conn
+            .prepare_cached("SELECT handle FROM account WHERE did = $1")?;
+        let handle_maybe: Option<String> = stmt
+            .query_row(params!(did.to_string()), |row| row.get(0))
+            .optional()?;
+        Ok(handle_maybe)
+    }
+
+    /// Looks up local DID associated with handle
+    ///
+    /// TODO: remote lookups, and/or local cache of external DIDs
+    pub fn resolve_handle(&mut self, handle: &str) -> Result<Option<Did>> {
+        let mut stmt = self
+            .conn
+            .prepare_cached("SELECT did FROM account WHERE handle = $1")?;
+        let did_maybe: Option<String> = stmt
+            .query_row(params!(handle), |row| row.get(0))
+            .optional()?;
+        Ok(did_maybe.map(|v| Did::from_str(&v).expect("valid DID in database")))
+    }
+
     pub fn delete_session(&mut self, jwt: &str) -> Result<bool> {
         let mut stmt = self
             .conn
diff --git a/adenosine-pds/src/lib.rs b/adenosine-pds/src/lib.rs
index 738a061..7b517f2 100644
--- a/adenosine-pds/src/lib.rs
+++ b/adenosine-pds/src/lib.rs
@@ -383,21 +383,25 @@ fn xrpc_get_handler(
             }
             Ok(json!({ "records": record_list }))
         }
-        "com.atproto.repo.describe" => {
-            let did = Did::from_str(&xrpc_required_param(request, "user")?)?;
-            // TODO: resolve handle?
-            let handle = did.to_string();
+        "com.atproto.session.get" => {
             let mut srv = srv.lock().expect("service mutex");
-            let did_doc = srv.atp_db.get_did_doc(&did)?;
-            let collections: Vec<String> = srv.repo.collections(&did)?;
-            let desc = RepoDescribe {
-                name: handle,
-                did: did.to_string(),
-                didDoc: did_doc,
-                collections: collections,
-                nameIsCorrect: true,
-            };
-            Ok(json!(desc))
+            let auth_did = &xrpc_check_auth_header(&mut srv, request, None)?;
+            let handle = srv
+                .atp_db
+                .resolve_did(auth_did)?
+                .expect("registered account has handle");
+            Ok(json!({"did": auth_did.to_string(), "handle": handle}))
+        }
+        "com.atproto.handle.resolve" => {
+            let handle = xrpc_required_param(request, "handle")?;
+            let mut srv = srv.lock().expect("service mutex");
+            match srv.atp_db.resolve_handle(&handle)? {
+                Some(did) => Ok(json!({"did": did.to_string()})),
+                None => Err(XrpcError::NotFound(format!(
+                    "could not resolve handle internally: {}",
+                    handle
+                )))?,
+            }
         }
         // =========== app.bsky methods
         "app.bsky.actor.getProfile" => {
-- 
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