feat(stealth): many stealth improvements

crates/obscura-net/Cargo.toml

@@ -25,7 +25,7 @@ wreq-util = { version = "3.0.0-rc.10", optional = true }
 # Enabling it on other platforms produces unresolved `build_script_main_*`
 # symbols at link time (see issue #39).
 [target.'cfg(any(target_os = "linux", target_os = "android"))'.dependencies]
-wreq = { version = "6.0.0-rc.28", optional = true, features = ["prefix-symbols"] }
+wreq = { version = "6.0.0-rc.28", optional = true, features = ["prefix-symbols", "socks"] }
 
 [target.'cfg(not(any(target_os = "linux", target_os = "android")))'.dependencies]
-wreq = { version = "6.0.0-rc.28", optional = true }
+wreq = { version = "6.0.0-rc.28", optional = true, features = ["socks"] }

crates/obscura-net/src/wreq_client.rs

@@ -72,6 +72,20 @@ impl StealthHttpClient {
 
     pub async fn fetch(&self, url: &Url) -> Result<Response, ObscuraNetError> {
         let mut current_url = url.clone();
+
+        if let Some(host) = current_url.host_str() {
+            if crate::blocklist::is_blocked(host) {
+                tracing::debug!("Blocked tracker: {}", current_url);
+                return Ok(Response {
+                    status: 0,
+                    url: current_url,
+                    headers: HashMap::new(),
+                    body: Vec::new(),
+                    redirected_from: Vec::new(),
+                });
+            }
+        }
+
         let mut redirects = Vec::new();
 
         for _ in 0..20 {