Fix domain lookups

src/api/client_server/media.rs

@@ -185,7 +185,7 @@ async fn request_url_preview(url: &Url) -> Result<UrlPreviewData> {
 
     // resolve host to IP to ensure it's not an internal IP
     let dns_resolver = services().globals.dns_resolver();
-    match dns_resolver.lookup_ip(host).await {
+    match dns_resolver.lookup_ip(format!("{host}.")).await {
         Err(_) => {
             return Err(Error::BadServerResponse("Failed to resolve media preview host"));
         },
@@ -199,7 +199,7 @@ async fn request_url_preview(url: &Url) -> Result<UrlPreviewData> {
     // https://docs.spamhaus.com/datasets/docs/source/70-access-methods/data-query-service/040-dqs-queries.html
     if services().globals.url_previews().use_spamhaus_denylist {
         let resolver = services().globals.dns_resolver();
-        match resolver.lookup_ip(format!("{host}.dbl.spamhaus.org")).await {
+        match resolver.lookup_ip(format!("{host}.dbl.spamhaus.org.")).await {
             Err(e) => {
                 if let ResolveErrorKind::NoRecordsFound { .. } = e.kind() { }
                 else {

src/config/mod.rs

@@ -109,7 +109,9 @@ pub struct WellKnownConfig {
 #[derive(Clone, Debug, Deserialize, Default)]
 pub struct UrlPreviewConfig {
     pub default: UrlPreviewPermission,
+    #[serde(default)]
     pub exceptions: Vec<WildCardedDomain>,
+    #[serde(default)]
     pub use_spamhaus_denylist: bool,
 }
 

tests/test-config.toml

@@ -8,6 +8,7 @@ database_path = "/tmp"
 
 # All the other settings are left at their defaults:
 address = "127.0.0.1"
+database_backend = "rocksdb"
 allow_registration = true
 max_request_size = 20_000_000
 port = 6167