{finger,ruptime,rwho}: render nicer varlink errors for users

src/bin/finger.rs

@@ -5,7 +5,7 @@ use roowho2_lib::{
     proto::finger_protocol::FingerResponseUserEntry,
     server::{
         fingerd::{FingerRequestInfo, FingerRequestNetworking},
-        varlink_api::VarlinkFingerClientProxy,
+        varlink_api::{VarlinkFingerClientError, VarlinkFingerClientProxy},
     },
 };
 
@@ -196,7 +196,17 @@ async fn main() -> anyhow::Result<()> {
         )
         .await
         .context("Failed to send finger request")?
-        .map_err(|e| anyhow::anyhow!("Server returned an error for finger request: {:?}", e))?;
+        .map_err(|e| match e {
+            VarlinkFingerClientError::Disabled => {
+                anyhow::anyhow!("The fingerd service is disabled on the server")
+            }
+            VarlinkFingerClientError::TimedOut => {
+                anyhow::anyhow!("The fingerd service timed out while processing the request")
+            }
+            VarlinkFingerClientError::InvalidRequest => {
+                anyhow::anyhow!("The fingerd service could not process the request, please check the logs or report the error to your system administrators")
+            }
+        })?;
 
     if args.json {
         println!("{}", serde_json::to_string_pretty(&reply).unwrap());

src/bin/ruptime.rs

@@ -3,7 +3,10 @@ use chrono::{Duration, Utc};
 use clap::{CommandFactory, Parser};
 use clap_complete::{Shell, generate};
 
-use roowho2_lib::{proto::WhodStatusUpdate, server::varlink_api::VarlinkRwhodClientProxy};
+use roowho2_lib::{
+    proto::WhodStatusUpdate,
+    server::varlink_api::{VarlinkRwhodClientError, VarlinkRwhodClientProxy},
+};
 
 /// Show host status of local machines.
 ///
@@ -70,7 +73,17 @@ async fn main() -> anyhow::Result<()> {
         .ruptime(args.all)
         .await
         .context("Failed to send rwho request")?
-        .map_err(|e| anyhow::anyhow!("Server returned an error for rwho request: {:?}", e))?;
+        .map_err(|e| match e {
+            VarlinkRwhodClientError::Disabled => {
+                anyhow::anyhow!("The rwhod service is disabled on the server")
+            }
+            VarlinkRwhodClientError::TimedOut => {
+                anyhow::anyhow!("The rwhod service timed out while processing the request")
+            }
+            VarlinkRwhodClientError::InvalidRequest => {
+                anyhow::anyhow!("The rwhod service could not process the request, please check the logs or report the error to your system administrators")
+            }
+        })?;
 
     sort_entries(&mut reply, args.load, args.time, args.users, args.reverse);
 

src/bin/rwho.rs

@@ -1,7 +1,10 @@
 use anyhow::Context;
 use clap::{CommandFactory, Parser};
 use clap_complete::{Shell, generate};
-use roowho2_lib::{proto::WhodUserEntry, server::varlink_api::VarlinkRwhodClientProxy};
+use roowho2_lib::{
+    proto::WhodUserEntry,
+    server::varlink_api::{VarlinkRwhodClientError, VarlinkRwhodClientProxy},
+};
 
 /// Check who is logged in on local machines.
 ///
@@ -50,7 +53,17 @@ async fn main() -> anyhow::Result<()> {
         .rwho(args.all)
         .await
         .context("Failed to send rwho request")?
-        .map_err(|e| anyhow::anyhow!("Server returned an error for rwho request: {:?}", e))?;
+        .map_err(|e| match e {
+            VarlinkRwhodClientError::Disabled => {
+                anyhow::anyhow!("The rwhod service is disabled on the server")
+            }
+            VarlinkRwhodClientError::TimedOut => {
+                anyhow::anyhow!("The rwhod service timed out while processing the request")
+            }
+            VarlinkRwhodClientError::InvalidRequest => {
+                anyhow::anyhow!("The rwhod service could not process the request, please check the logs or report the error to your system administrators")
+            }
+        })?;
 
     reply.sort_by(|(host, user), (host2, user2)| {
         user.user_id