Add simple client implementation

Has majorly common code with mediator agent.
It's in essence one hybrid, with organized code. Then again, aries agents are meant to be horizontal.

Signed-off-by: nain-F49FF806 <[email protected]>

mediator/Cargo.toml

@@ -18,8 +18,12 @@ env_logger = "0.10.0"
 fast_qr = { version = "0.10.2", features = ["svg"] }
 log = "0.4.20"
 messages = { version = "0.58.0", path = "../messages" }
+reqwest = { version = "0.11.20", features = ["json"] }
 serde_json = "1.0.106"
 tokio = { version = "1", features = ["rt-multi-thread", "macros"] }
 tower-http = { version = "0.4.4", features = ["catch-panic"] }
 url = "2.4.1"
 uuid = "1.4.1"
+
+[dev-dependencies]
+reqwest = "0.11.20"

mediator/src/agent/client.rs

@@ -0,0 +1,88 @@
+use std::sync::Arc;
+
+use aries_vcx::handlers::util::AnyInvitation;
+// use aries_vcx::protocols::connection::initiation_type::Invitee;
+use aries_vcx::protocols::connection::invitee::states::initial::Initial as ClientInit;
+// use aries_vcx::protocols::connection::invitee::states::invited::Invited;
+use aries_vcx::protocols::connection::invitee::states::requested::Requested as ClientRequestSent;
+use aries_vcx::protocols::connection::invitee::InviteeConnection;
+
+use aries_vcx::protocols::connection::Connection;
+use aries_vcx::protocols::mediated_connection::pairwise_info::PairwiseInfo;
+// use aries_vcx::protocols::oob;
+use aries_vcx::utils::mockdata::profile::mock_ledger::MockLedger;
+use aries_vcx_core::ledger::base_ledger::IndyLedgerRead;
+use aries_vcx_core::wallet::base_wallet::BaseWallet;
+use aries_vcx_core::wallet::indy::IndySdkWallet;
+use diddoc_legacy::aries::diddoc::AriesDidDoc;
+// use diddoc_legacy::aries::service::AriesService;
+use messages::msg_fields::protocols::out_of_band::invitation::Invitation as OOBInvitation;
+use messages::msg_fields::protocols::out_of_band::invitation::OobService;
+
+use super::Agent;
+use crate::utils::prelude::*;
+
+pub fn oob2did(oob: OOBInvitation) -> AriesDidDoc {
+    let mut did_doc: AriesDidDoc = AriesDidDoc::default();
+    did_doc.set_id(oob.id.clone());
+    let oob_service = oob.content.services.first().expect("OOB needs a service").clone();
+
+    match oob_service {
+        OobService::AriesService(service) => {
+            did_doc.set_service_endpoint(service.service_endpoint);
+            did_doc.set_recipient_keys(service.recipient_keys);
+            did_doc.set_routing_keys(service.routing_keys);
+        }
+        _ => panic!("Assuming fully clean AriesService variant only"),
+    }
+    did_doc
+}
+
+// client role utilities
+impl Agent<IndySdkWallet> {
+    /// Starts a new connection and tries to create request to the specified OOB invite endpoint
+    pub async fn client_connect_req(&self, oob_invite: OOBInvitation) -> InviteeConnection<ClientRequestSent> {
+        // let (did, vk) = self.wallet.create_and_store_my_did(None, None).await.unwrap();
+        // let client_conn =
+        //     InviteeConnection::<Initial>::new_invitee("foo".into(), PairwiseInfo { pw_did: did, pw_vk: vk });
+
+        // fn accept_invitation(
+        //     client_conn: InviteeConnection<Initial>,
+        //     oob_invite: OOBInvitation,
+        // ) -> InviteeConnection<Invited> {
+        //     let did_doc = oob2did(oob_invite.clone());
+        //     let state = Invited::new(did_doc, AnyInvitation::Oob(oob_invite));
+        //     // Convert to `InvitedState`
+        //     Connection {
+        //         state,
+        //         source_id: "foo".into(),
+        //         pairwise_info: client_conn.pairwise_info().clone(),
+        //         initiation_type: Invitee,
+        //     }
+        // }
+        // let client_conn = accept_invitation(client_conn, oob_invite);
+        // todo!()
+
+        let (pw_did, pw_vk) = self.wallet.create_and_store_my_did(None, None).await.unwrap();
+
+        let mock_ledger: Arc<dyn IndyLedgerRead> = Arc::new(MockLedger {}); // not good. will be dealt later. (can see brutish attempt above)
+        let mut client_conn =
+            InviteeConnection::<ClientInit>::new_invitee("foo".into(), PairwiseInfo { pw_did, pw_vk })
+                .accept_invitation(&mock_ledger, AnyInvitation::Oob(oob_invite))
+                .await
+                .unwrap();
+
+        let client_conn = client_conn
+            .prepare_request("http://response.http.alt".parse().unwrap(), vec![])
+            .await
+            .unwrap();
+
+        let msg_connection_request = client_conn.get_request().clone();
+        info!("Client Connection Request: {:#?}", msg_connection_request);
+        // invitee_requested
+        //     .send_message(&self.wallet, &msg_connection_request.into(), &HttpClient)
+        //     .await
+        //     .unwrap();
+        client_conn
+    }
+}

mediator/src/agent/mod.rs

@@ -10,6 +10,8 @@ use diddoc_legacy::aries::service::AriesService;
 use messages::msg_fields::protocols::out_of_band::invitation::Invitation as OOBInvitation;
 
 use crate::utils::Result_;
+// #[cfg(test)]
+pub mod client;
 
 #[derive(Debug, Clone)]
 pub struct Agent<T>
@@ -41,6 +43,7 @@ impl Agent<IndySdkWallet> {
         Self::new_from_wallet_config(config).await
     }
 }
+
 // Utils
 impl<T> Agent<T>
 where

mediator/src/routes/client.rs

@@ -0,0 +1,32 @@
+use super::*;
+use crate::agent::client::oob2did;
+use log::info;
+use messages::msg_fields::protocols::out_of_band::invitation::Invitation as OOBInvitation;
+
+#[debug_handler]
+pub async fn connection_request(
+    State(agent): State<ArcAgent<IndySdkWallet>>,
+    Json(oob_invite): Json<OOBInvitation>,
+) -> Json<Value> {
+    let state = agent.client_connect_req(oob_invite.clone()).await;
+    let req_msg = serde_json::to_value(state.get_request()).unwrap();
+    info!(
+        "Sending Connection Request: {},",
+        serde_json::to_string_pretty(&req_msg).unwrap()
+    );
+    let service_endpoint = oob2did(oob_invite).get_endpoint().expect("Service needs an endpoint");
+    let http_client = reqwest::Client::new();
+    let res = http_client
+        .post(service_endpoint)
+        .json(&req_msg)
+        .send()
+        .await
+        .expect("Something went wrong")
+        .error_for_status()
+        .expect("Unexpected response")
+        .json::<Value>()
+        .await
+        .expect("Decoding should mostly succeed");
+    info!("Received response: {},", serde_json::to_string_pretty(&res).unwrap());
+    Json(res)
+}

mediator/src/routes.rs → mediator/src/routes/mod.rs

@@ -3,14 +3,18 @@ use std::sync::Arc;
 use aries_vcx_core::wallet::indy::IndySdkWallet;
 use axum::extract::State;
 use axum::response::Html;
-use axum::routing::get;
-use axum::Router;
+use axum::routing::{get, post};
+use axum::{Json, Router};
 use axum_macros::debug_handler;
+use serde_json::Value;
 
 use crate::agent::Agent;
+type ArcAgent<T> = Arc<Agent<T>>;
+
+pub mod client;
 
 #[debug_handler]
-pub async fn oob_invite_qr(State(agent): State<Arc<Agent<IndySdkWallet>>>) -> Html<String> {
+pub async fn oob_invite_qr(State(agent): State<ArcAgent<IndySdkWallet>>) -> Html<String> {
     let oob = agent.get_oob_invite().unwrap();
     let oob_string = serde_json::to_string_pretty(&oob).unwrap();
     let qr = fast_qr::QRBuilder::new(oob_string.clone()).build().unwrap();
@@ -34,7 +38,7 @@ pub async fn readme() -> Html<String> {
 pub async fn build_router(endpoint_root: &str) -> Router {
     let mut agent = Agent::new_demo_agent().await.unwrap();
     agent
-        .init_service(vec![], format!("http://{endpoint_root}").parse().unwrap())
+        .init_service(vec![], format!("http://{endpoint_root}/aries").parse().unwrap())
         .await
         .unwrap();
     Router::default()