fix: report legacy TLS subscription failures

Changelog.md

@@ -3,6 +3,7 @@
 ### 🐞 修复问题
 
 - macOS 托盘速率可能的样式错误
+- 订阅导入 TLS 1.0/1.1 等过旧协议时显示更明确错误原因
 
 <details>
 <summary><strong> ✨ 新增功能 </strong></summary>

src-tauri/src/cmd/profile.rs

@@ -24,6 +24,14 @@ use std::time::Duration;
 
 static CURRENT_SWITCHING_PROFILE: AtomicBool = AtomicBool::new(false);
 
+fn profile_import_error(err: &anyhow::Error) -> std::string::String {
+    if let Some(cause) = err.chain().find(|cause| cause.to_string().contains("TLS 1.0/1.1")) {
+        return cause.to_string();
+    }
+
+    format!("导入订阅失败: {err:#}")
+}
+
 #[tauri::command]
 pub async fn get_profiles() -> CmdResult<SharedDraft<IProfiles>> {
     logging!(debug, Type::Cmd, "获取配置文件列表");
@@ -70,7 +78,7 @@ pub async fn import_profile(url: std::string::String, option: Option<PrfOption>)
         }
         Err(e) => {
             logging!(error, Type::Cmd, "[导入订阅] 下载失败: {}", e);
-            return Err(format!("导入订阅失败: {}", e).into());
+            return Err(profile_import_error(&e).into());
         }
     };
 

src-tauri/src/config/prfitem.rs

@@ -297,7 +297,7 @@ impl PrfItem {
             Ok(r) => r,
             Err(e) => {
                 tokio::time::sleep(Duration::from_millis(100)).await;
-                bail!("failed to fetch remote profile: {}", e);
+                return Err(e).context("failed to fetch remote profile");
             }
         };
 

src-tauri/src/utils/network.rs

@@ -121,6 +121,10 @@ impl NetworkManager {
     }
 
     fn should_retry_with_static_webpki_roots(err: &anyhow::Error) -> bool {
+        if err.chain().any(Self::is_legacy_tls_protocol_error) {
+            return false;
+        }
+
         err.chain().any(|e| {
             let msg = e.to_string().to_ascii_lowercase();
             [
@@ -141,6 +145,22 @@ impl NetworkManager {
         })
     }
 
+    fn context_reqwest_error(err: reqwest::Error, context: &'static str) -> anyhow::Error {
+        let legacy_tls = Self::is_legacy_tls_protocol_error(&err);
+        let err = anyhow::Error::new(err).context(context);
+
+        if legacy_tls {
+            err.context("Subscription server uses legacy TLS; only TLS 1.2/1.3 is supported. TLS 1.0/1.1 is insecure")
+        } else {
+            err
+        }
+    }
+
+    fn is_legacy_tls_protocol_error(err: &(dyn std::error::Error + 'static)) -> bool {
+        let detail = format!("{err:#?}").to_ascii_lowercase();
+        detail.contains("protocolversion") || detail.contains("protocol version")
+    }
+
     pub async fn create_request(
         &self,
         proxy_type: ProxyType,
@@ -207,7 +227,7 @@ impl NetworkManager {
         let response = match request_builder.send().await {
             Ok(resp) => resp,
             Err(e) => {
-                return Err(anyhow::Error::new(e).context("Request failed"));
+                return Err(Self::context_reqwest_error(e, "Request failed"));
             }
         };
 
@@ -216,7 +236,7 @@ impl NetworkManager {
         let body = match response.text().await {
             Ok(text) => text.into(),
             Err(e) => {
-                return Err(anyhow::anyhow!("Failed to read response body: {}", e));
+                return Err(Self::context_reqwest_error(e, "Failed to read response body"));
             }
         };
 
@@ -299,9 +319,7 @@ impl NetworkManager {
                 )
                 .await
                 .map_err(|fallback_err| {
-                    anyhow::anyhow!(
-                        "platform TLS verifier failed: {err}; static webpki roots fallback failed: {fallback_err}"
-                    )
+                    fallback_err.context("static webpki roots fallback failed after platform TLS verifier failed")
                 }),
             Err(err) => Err(err),
         }

src/pages/profiles.tsx

@@ -292,7 +292,6 @@ const ProfilePage = () => {
       setUrl('')
       await performRobustRefresh()
     }
-
     try {
       // 尝试正常导入
       await importProfile(url)
@@ -300,6 +299,11 @@ const ProfilePage = () => {
     } catch (initialErr) {
       console.warn('[订阅导入] 首次导入失败:', initialErr)
 
+      if (String(initialErr).toLowerCase().includes('legacy tls')) {
+        showNotice.error(String(initialErr))
+        return
+      }
+
       showNotice.info('profiles.page.feedback.notifications.importRetry')
       try {
         // 使用自身代理尝试导入