v0.1.3-rc.4.2

Cargo.lock

@@ -361,7 +361,7 @@ dependencies = [
 
 [[package]]
 name = "cursor-api"
-version = "0.1.3-rc.4.1"
+version = "0.1.3-rc.4.2"
 dependencies = [
  "axum",
  "base64",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cursor-api"
-version = "0.1.3-rc.4.1"
+version = "0.1.3-rc.4.2"
 edition = "2021"
 authors = ["wisdgod <nav@wisdgod.com>"]
 description = "OpenAI format compatibility layer for the Cursor API"

src/chat/service.rs

@@ -24,7 +24,7 @@ use crate::{
         model::{error::ChatError, userinfo::MembershipType, ApiStatus, ErrorResponse},
         utils::{
             format_time_ms, from_base64, get_token_profile, tokeninfo_to_token,
-            validate_token_and_checksum,
+            validate_token_and_checksum, TrimNewlines as _,
         },
     },
 };
@@ -410,15 +410,13 @@ pub async fn handle_chat(
             for message in messages {
                 match message {
                     StreamMessage::Content(text) => {
-                        // 记录首字时间(如果还未记录)
-                        if let Ok(mut first_time) = ctx.first_chunk_time.try_lock() {
-                            if first_time.is_none() {
+                        let is_first = ctx.is_start.load(Ordering::SeqCst);
+                        if is_first {
+                            if let Ok(mut first_time) = ctx.first_chunk_time.try_lock() {
                                 *first_time = Some(ctx.start_time.elapsed().as_secs_f64());
                             }
                         }
 
-                        let is_first = ctx.is_start.load(Ordering::SeqCst);
-
                         let response = ChatResponse {
                             id: ctx.response_id.to_string(),
                             object: OBJECT_CHAT_COMPLETION_CHUNK.to_string(),
@@ -433,12 +431,16 @@ pub async fn handle_chat(
                                 message: None,
                                 delta: Some(Delta {
                                     role: if is_first {
-                                        ctx.is_start.store(false, Ordering::SeqCst);
                                         Some(Role::Assistant)
                                     } else {
                                         None
                                     },
-                                    content: Some(text),
+                                    content: if is_first {
+                                        ctx.is_start.store(false, Ordering::SeqCst);
+                                        Some(text.trim_leading_newlines())
+                                    } else {
+                                        Some(text)
+                                    },
                                 }),
                                 finish_reason: None,
                             }],
@@ -528,7 +530,8 @@ pub async fn handle_chat(
                             {
                                 log.status = LogStatus::Failed;
                                 log.error = Some(error_response.native_code());
-                                log.timing.total = format_time_ms(start_time.elapsed().as_secs_f64());
+                                log.timing.total =
+                                    format_time_ms(start_time.elapsed().as_secs_f64());
                                 state.error_requests += 1;
                             }
                         }
@@ -562,7 +565,9 @@ pub async fn handle_chat(
                     }
                     return Err((
                         StatusCode::INTERNAL_SERVER_ERROR,
-                        Json(ChatError::RequestFailed("Empty stream response".to_string()).to_json()),
+                        Json(
+                            ChatError::RequestFailed("Empty stream response".to_string()).to_json(),
+                        ),
                     ));
                 }
             }

src/chat/stream/decoder.rs

@@ -39,7 +39,7 @@ impl ToMarkdown for BTreeMap<String, String> {
     }
 }
 
-#[derive(PartialEq, Clone)]
+#[derive(PartialEq, Clone, Debug)]
 pub enum StreamMessage {
     // 调试
     Debug(String),
@@ -65,6 +65,7 @@ impl StreamMessage {
 pub struct StreamDecoder {
     buffer: Vec<u8>,
     first_result: Option<Vec<StreamMessage>>,
+    first_result_ready: bool,
     first_result_taken: bool,
 }
 
@@ -73,6 +74,7 @@ impl StreamDecoder {
         Self {
             buffer: Vec::new(),
             first_result: None,
+            first_result_ready: false,
             first_result_taken: false,
         }
     }
@@ -93,7 +95,7 @@ impl StreamDecoder {
     }
 
     pub fn is_first_result_ready(&self) -> bool {
-        self.first_result.is_some() && self.buffer.is_empty() && !self.first_result_taken
+        self.first_result_ready
     }
 
     pub fn decode(&mut self, data: &[u8], convert_web_ref: bool) -> Result<Vec<StreamMessage>, StreamError> {
@@ -150,10 +152,13 @@ impl StreamDecoder {
         if !self.first_result_taken && !messages.is_empty() {
             if self.first_result.is_none() {
                 self.first_result = Some(messages.clone());
-            } else {
+            } else if !self.first_result_ready {
                 self.first_result.as_mut().unwrap().extend(messages.clone());
             }
         }
+        if !self.first_result_ready {
+            self.first_result_ready = self.first_result.is_some() && self.buffer.is_empty() && !self.first_result_taken;
+        }
         Ok(messages)
     }
 

src/common/utils.rs

@@ -48,6 +48,24 @@ pub fn parse_usize_from_env(key: &str, default: usize) -> usize {
         .unwrap_or(default)
 }
 
+pub trait TrimNewlines {
+    fn trim_leading_newlines(self) -> Self;
+}
+
+impl TrimNewlines for String {
+    #[inline(always)]
+    fn trim_leading_newlines(mut self) -> Self {
+        if self.as_bytes().get(..2) == Some(b"\n\n".as_slice()) {
+            unsafe {
+                let vec = self.as_mut_vec();
+                vec.copy_within(2.., 0);
+                vec.truncate(vec.len() - 2);
+            }
+        }
+        self
+    }
+}
+
 pub async fn get_token_profile(auth_token: &str) -> Option<TokenProfile> {
     let user_id = extract_user_id(auth_token)?;
 

src/main.rs

@@ -39,14 +39,14 @@ use tower_http::{cors::CorsLayer, limit::RequestBodyLimitLayer};
 #[tokio::main]
 async fn main() {
     // 设置自定义 panic hook
-    // std::panic::set_hook(Box::new(|info| {
-    //     // std::env::set_var("RUST_BACKTRACE", "1");
-    //     if let Some(msg) = info.payload().downcast_ref::<String>() {
-    //         eprintln!("{}", msg);
-    //     } else if let Some(msg) = info.payload().downcast_ref::<&str>() {
-    //         eprintln!("{}", msg);
-    //     }
-    // }));
+    std::panic::set_hook(Box::new(|info| {
+        // std::env::set_var("RUST_BACKTRACE", "1");
+        if let Some(msg) = info.payload().downcast_ref::<String>() {
+            eprintln!("{}", msg);
+        } else if let Some(msg) = info.payload().downcast_ref::<&str>() {
+            eprintln!("{}", msg);
+        }
+    }));
 
     // 加载环境变量
     dotenvy::dotenv().ok();