feat(desktop): add detailed error messages and SSL bypass checkbox

desktop/src/main.rs

@@ -21,6 +21,7 @@ struct App {
     share_url: String,
     upload_rx: Option<mpsc::Receiver<UploadResult>>,
     uploading: bool,
+    skip_ssl: bool,
 }
 
 impl App {
@@ -31,16 +32,19 @@ impl App {
             share_url: String::new(),
             upload_rx: None,
             uploading: false,
+            skip_ssl: false,
         }
     }
 
-    fn start_upload(&mut self, filepath: std::path::PathBuf, api_url: String) {
+    fn start_upload(&mut self, filepath: std::path::PathBuf) {
         let (tx, rx) = mpsc::channel();
         self.upload_rx = Some(rx);
         self.uploading = true;
+        let api_url = self.api_url.clone();
+        let skip_ssl = self.skip_ssl;
 
         std::thread::spawn(move || {
-            let result = do_upload(&api_url, &filepath);
+            let result = do_upload(&api_url, &filepath, skip_ssl);
             let _ = tx.send(result);
         });
     }
@@ -65,7 +69,7 @@ impl App {
     }
 }
 
-fn do_upload(api_url: &str, filepath: &std::path::Path) -> UploadResult {
+fn do_upload(api_url: &str, filepath: &std::path::Path, skip_ssl: bool) -> UploadResult {
     let filename = filepath
         .file_name()
         .map(|n| n.to_string_lossy().to_string())
@@ -81,18 +85,33 @@ fn do_upload(api_url: &str, filepath: &std::path::Path) -> UploadResult {
         .part("file", part)
         .text("expiry", "24h");
 
-    let client = match reqwest::blocking::Client::builder()
-        .user_agent("TempFileTransfer-Desktop/0.1")
-        .timeout(std::time::Duration::from_secs(300))
-        .build()
-    {
+    let mut builder = reqwest::blocking::Client::builder()
+        .user_agent("TempFileTransfer-Desktop/0.2")
+        .timeout(std::time::Duration::from_secs(300));
+
+    if skip_ssl {
+        builder = builder.danger_accept_invalid_certs(true);
+    }
+
+    let client = match builder.build() {
         Ok(c) => c,
         Err(e) => return UploadResult::Err(format!("创建客户端失败: {}", e)),
     };
 
     let resp = match client.post(api_url).multipart(form).send() {
         Ok(r) => r,
-        Err(e) => return UploadResult::Err(format!("网络请求失败: {}", e)),
+        Err(e) => {
+            let detail = if e.is_connect() {
+                format!("连接失败（无法连接到服务器）: {}", e)
+            } else if e.is_timeout() {
+                format!("连接超时: {}", e)
+            } else if e.is_body() {
+                format!("SSL/数据传输出错（请尝试勾选「跳过SSL验证」）: {}", e)
+            } else {
+                format!("{}", e)
+            };
+            return UploadResult::Err(detail);
+        }
     };
 
     let status = resp.status();
@@ -138,6 +157,11 @@ impl eframe::App for App {
                     );
                 });
 
+                ui.add_space(4.0);
+                ui.horizontal(|ui| {
+                    ui.checkbox(&mut self.skip_ssl, "跳过 SSL 证书验证（仅当连接失败时尝试）");
+                });
+
                 ui.add_space(8.0);
 
                 let drop_frame = egui::Frame::dark_canvas(ui.style())
@@ -180,7 +204,7 @@ impl eframe::App for App {
                     if !self.uploading {
                         for f in files {
                             if let Some(ref path) = f.path {
-                                self.start_upload(path.to_owned(), self.api_url.clone());
+                                self.start_upload(path.to_owned());
                                 break;
                             }
                         }
@@ -191,10 +215,14 @@ impl eframe::App for App {
 
                 ui.horizontal(|ui| {
                     ui.label("状态:");
-                    ui.label(
-                        egui::RichText::new(&self.status)
-                            .color(egui::Color32::from_rgb(100, 180, 100)),
-                    );
+                    let color = if self.status.starts_with("上传失败") {
+                        egui::Color32::from_rgb(220, 80, 80)
+                    } else if self.status.starts_with("上传成功") {
+                        egui::Color32::from_rgb(80, 200, 80)
+                    } else {
+                        egui::Color32::from_rgb(100, 180, 100)
+                    };
+                    ui.label(egui::RichText::new(&self.status).color(color));
                 });
 
                 ui.add_space(8.0);
@@ -253,7 +281,7 @@ fn load_chinese_font(ctx: &egui::Context) {
 fn main() {
     let options = eframe::NativeOptions {
         viewport: egui::ViewportBuilder::default()
-            .with_inner_size([560.0, 480.0])
+            .with_inner_size([560.0, 500.0])
             .with_resizable(false)
             .with_title("临时文件传输"),
         ..Default::default()