Fix Vaultwarden Admin page error messages (#4869)

Since the change to camelCase variables the error messages in the
Vaultwarden Admin were not shown correctly anymore.

This PR fixes this by changing the case of the json key's.
Also updated the save and delete of the config to provide a more
descriptive error instead of only `Io` or which ever other error might
occure.

Fixes #4834

2 files changed, 10 insertions, 4 deletions

diff --git a/src/api/admin.rs b/src/api/admin.rs
index 9a1d3417..e6be3783 100644
--- a/src/api/admin.rs
+++ b/src/api/admin.rs
@@ -750,12 +750,18 @@ fn get_diagnostics_config(_token: AdminToken) -> Json<Value> {
 #[post("/config", data = "<data>")]
 fn post_config(data: Json<ConfigBuilder>, _token: AdminToken) -> EmptyResult {
     let data: ConfigBuilder = data.into_inner();
-    CONFIG.update_config(data)
+    if let Err(e) = CONFIG.update_config(data) {
+        err!(format!("Unable to save config: {e:?}"))
+    }
+    Ok(())
 }
 
 #[post("/config/delete")]
 fn delete_config(_token: AdminToken) -> EmptyResult {
-    CONFIG.delete_user_config()
+    if let Err(e) = CONFIG.delete_user_config() {
+        err!(format!("Unable to delete config: {e:?}"))
+    }
+    Ok(())
 }
 
 #[post("/config/backup_db")]
diff --git a/src/static/scripts/admin.js b/src/static/scripts/admin.js
index bc06c0a3..b194a91d 100644
--- a/src/static/scripts/admin.js
+++ b/src/static/scripts/admin.js
@@ -49,8 +49,8 @@ function _post(url, successMsg, errMsg, body, reload_page = true) {
     }).then(respText => {
         try {
             const respJson = JSON.parse(respText);
-            if (respJson.ErrorModel && respJson.ErrorModel.Message) {
-                return respJson.ErrorModel.Message;
+            if (respJson.errorModel && respJson.errorModel.message) {
+                return respJson.errorModel.message;
             } else {
                 return Promise.reject({ body: `${respStatus} - ${respStatusText}\n\nUnknown error`, error: true });
             }