fix(client): use OkHttp 4.x emulation to match Reddit Android TLS fingerprint

Author: Algorithm5838

src/client.rs

@@ -8,8 +8,8 @@ use log::{error, info, trace, warn};
 use percent_encoding::{percent_encode, CONTROLS};
 use serde_json::Value;
 use wreq::redirect::Policy;
-use wreq::{Client as WreqClient, EmulationFactory};
-use wreq_util::{Emulation, EmulationOS, EmulationOption};
+use wreq::Client as WreqClient;
+use wreq_util::Emulation;
 
 use std::sync::atomic::Ordering;
 use std::sync::atomic::{AtomicBool, AtomicU16};
@@ -61,22 +61,15 @@ const URL_PAIRS: [(&str, &str); 2] = [
 ];
 
 pub fn build_client() -> WreqClient {
-	// Use a diverse set of browser profiles so different instances (and restarts)
-	// produce different TLS/HTTP2 fingerprints, making bulk blocking harder.
+	// Use OkHttp 4.x profiles to match Reddit's Android app TLS fingerprint,
+	// keeping it consistent with the spoofed Android headers in MobileSpoofAuth.
 	let emulations = [
-		Emulation::Chrome135,
-		Emulation::Chrome136,
-		Emulation::Chrome137,
-		Emulation::Firefox135,
-		Emulation::Firefox136,
+		Emulation::OkHttp4_9,
+		Emulation::OkHttp4_10,
+		Emulation::OkHttp4_12,
 	];
-	let emulation_os = [EmulationOS::Android, EmulationOS::Windows, EmulationOS::Linux];
 
-	let emulation = EmulationOption::builder()
-		.emulation(*fastrand::choice(emulations.iter()).unwrap())
-		.emulation_os(*fastrand::choice(emulation_os.iter()).unwrap())
-		.build()
-		.emulation();
+	let emulation = *fastrand::choice(emulations.iter()).unwrap();
 
 	info!("Building wreq client with emulation {:?}", emulation);