Fix enforce blocked (#7246)

Co-authored-by: Timshel <timshel@users.noreply.github.com>

src/api/icons.rs

@@ -65,7 +65,7 @@ static CLIENT: LazyLock<Client> = LazyLock::new(|| {
     let icon_download_timeout = Duration::from_secs(CONFIG.icon_download_timeout());
     let pool_idle_timeout = Duration::from_secs(10);
     // Reuse the client between requests
-    get_reqwest_client_builder()
+    get_reqwest_client_builder(true)
         .cookie_provider(Arc::clone(&cookie_store))
         .timeout(icon_download_timeout)
         .pool_max_idle_per_host(5) // Configure the Hyper Pool to only have max 5 idle connections

src/http_client.rs

@@ -18,7 +18,7 @@ use crate::{CONFIG, util::is_global};
 
 pub fn make_http_request(method: reqwest::Method, url: &str) -> Result<reqwest::RequestBuilder, crate::Error> {
     static INSTANCE: LazyLock<Client> =
-        LazyLock::new(|| get_reqwest_client_builder().build().expect("Failed to build client"));
+        LazyLock::new(|| get_reqwest_client_builder(true).build().expect("Failed to build client"));
 
     let Ok(url) = url::Url::parse(url) else {
         err!("Invalid URL");
@@ -32,7 +32,7 @@ pub fn make_http_request(method: reqwest::Method, url: &str) -> Result<reqwest::
     Ok(INSTANCE.request(method, url))
 }
 
-pub fn get_reqwest_client_builder() -> ClientBuilder {
+pub fn get_reqwest_client_builder(enforce_block: bool) -> ClientBuilder {
     let mut headers = header::HeaderMap::new();
     headers.insert(header::USER_AGENT, header::HeaderValue::from_static("Vaultwarden"));
 
@@ -55,7 +55,7 @@ pub fn get_reqwest_client_builder() -> ClientBuilder {
     Client::builder()
         .default_headers(headers)
         .redirect(redirect_policy)
-        .dns_resolver(CustomDnsResolver::instance())
+        .dns_resolver(CustomDns::instance(enforce_block))
         .timeout(Duration::from_secs(10))
 }
 
@@ -210,6 +210,11 @@ impl fmt::Display for CustomHttpClientError {
 
 impl std::error::Error for CustomHttpClientError {}
 
+pub struct CustomDns {
+    enforce_block: bool,
+    resolver: Arc<CustomDnsResolver>,
+}
+
 #[derive(Debug, Clone)]
 enum CustomDnsResolver {
     Default(),
@@ -217,12 +222,18 @@ enum CustomDnsResolver {
 }
 type BoxError = Box<dyn std::error::Error + Send + Sync>;
 
-impl CustomDnsResolver {
-    fn instance() -> Arc<Self> {
+impl CustomDns {
+    fn instance(enforce_block: bool) -> Self {
         static INSTANCE: LazyLock<Arc<CustomDnsResolver>> = LazyLock::new(CustomDnsResolver::new);
-        Arc::clone(&*INSTANCE)
+
+        CustomDns {
+            enforce_block,
+            resolver: Arc::clone(&*INSTANCE),
+        }
+    }
 }
 
+impl CustomDnsResolver {
     fn new() -> Arc<Self> {
         TokioResolver::builder(TokioRuntimeProvider::default())
             .and_then(|mut builder| {
@@ -239,30 +250,32 @@ impl CustomDnsResolver {
     }
 
     // Note that we get an iterator of addresses, but we only grab the first one for convenience
-    async fn resolve_domain(&self, name: &str) -> Result<Vec<SocketAddr>, BoxError> {
-        pre_resolve(name)?;
+    async fn resolve_domain(&self, name: &str, enforce_block: bool) -> Result<Vec<SocketAddr>, BoxError> {
+        pre_resolve(name, enforce_block)?;
 
         let results: Vec<SocketAddr> = match self {
             Self::Default() => tokio::net::lookup_host((name, 0)).await?.collect(),
             Self::Hickory(r) => r.lookup_ip(name).await?.iter().map(|i| SocketAddr::new(i, 0)).collect(),
         };
 
+        if enforce_block {
             for addr in &results {
                 post_resolve(name, addr.ip())?;
             }
+        }
 
         Ok(results)
     }
 }
 
-fn pre_resolve(name: &str) -> Result<(), CustomHttpClientError> {
+fn pre_resolve(name: &str, enforce_block: bool) -> Result<(), CustomHttpClientError> {
     let Ok(host) = get_valid_host(name) else {
         return Err(CustomHttpClientError::Invalid {
             domain: name.to_owned(),
         });
     };
 
-    if should_block_host(&host).is_err() {
+    if enforce_block && should_block_host(&host).is_err() {
         return Err(CustomHttpClientError::Blocked {
             domain: name.to_owned(),
         });
@@ -282,12 +295,13 @@ fn post_resolve(name: &str, ip: IpAddr) -> Result<(), CustomHttpClientError> {
     }
 }
 
-impl Resolve for CustomDnsResolver {
+impl Resolve for CustomDns {
     fn resolve(&self, name: Name) -> Resolving {
-        let this = self.clone();
+        let enforce_block = self.enforce_block;
+        let this = Arc::clone(&self.resolver);
         Box::pin(async move {
             let name = name.as_str();
-            let results = this.resolve_domain(name).await?;
+            let results = this.resolve_domain(name, enforce_block).await?;
             if results.is_empty() {
                 warn!("Unable to resolve {name} to any valid IP address");
             }

src/sso_client.rs

@@ -71,7 +71,7 @@ pub struct OidcHttpClient {
 
 impl OidcHttpClient {
     fn new() -> Result<Self, reqwest::Error> {
-        get_reqwest_client_builder().redirect(reqwest::redirect::Policy::none()).build().map(|client| Self {
+        get_reqwest_client_builder(false).redirect(reqwest::redirect::Policy::none()).build().map(|client| Self {
             client,
         })
     }
@@ -83,7 +83,10 @@ impl<'c> AsyncHttpClient<'c> for OidcHttpClient {
 
     fn call(&'c self, request: HttpRequest) -> Self::Future {
         Box::pin(async move {
-            let response = self.client.execute(request.try_into().map_err(Box::new)?).await.map_err(Box::new)?;
+            let response = self.client.execute(request.try_into().map_err(Box::new)?).await.map_err(|e| {
+                debug!("Request failed {e:?}");
+                Box::new(e)
+            })?;
 
             let mut builder = http::Response::builder().status(response.status()).version(response.version());
 
@@ -91,7 +94,9 @@ impl<'c> AsyncHttpClient<'c> for OidcHttpClient {
                 builder = builder.header(name, value);
             }
 
-            builder.body(response.bytes().await.map_err(Box::new)?.to_vec()).map_err(HttpClientError::Http)
+            let body = response.bytes().await.map_err(Box::new)?;
+            debug!("Response body {}", String::from_utf8_lossy(&body));
+            builder.body(body.to_vec()).map_err(HttpClientError::Http)
         })
     }
 }