Files
CC-Switch/src-tauri/src/services/stream_check.rs
T
YoVinchen c2adb1af46 fix(proxy): restore request timeout and fix proxy hot-reload issues
- Add URL scheme validation in build_client (http/https/socks5/socks5h)
- Restore per-request timeout for speedtest, stream_check, usage_script, forwarder
- Fix set_global_proxy_url to validate before persisting to DB
- Mask proxy credentials in all log outputs
- Fix forwarder hot-reload by fetching client on each request
2026-01-12 11:34:31 +08:00

501 lines
16 KiB
Rust

//! 流式健康检查服务
//!
//! 使用流式 API 进行快速健康检查,只需接收首个 chunk 即判定成功。
use futures::StreamExt;
use regex::Regex;
use reqwest::Client;
use serde::{Deserialize, Serialize};
use serde_json::json;
use std::time::Instant;
use crate::app_config::AppType;
use crate::error::AppError;
use crate::provider::Provider;
use crate::proxy::providers::{get_adapter, AuthInfo};
/// 健康状态枚举
#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
#[serde(rename_all = "lowercase")]
pub enum HealthStatus {
Operational,
Degraded,
Failed,
}
/// 流式检查配置
#[derive(Debug, Clone, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct StreamCheckConfig {
pub timeout_secs: u64,
pub max_retries: u32,
pub degraded_threshold_ms: u64,
/// Claude 测试模型
pub claude_model: String,
/// Codex 测试模型
pub codex_model: String,
/// Gemini 测试模型
pub gemini_model: String,
}
impl Default for StreamCheckConfig {
fn default() -> Self {
Self {
timeout_secs: 45,
max_retries: 2,
degraded_threshold_ms: 6000,
claude_model: "claude-haiku-4-5-20251001".to_string(),
codex_model: "gpt-5.1-codex@low".to_string(),
gemini_model: "gemini-3-pro-preview".to_string(),
}
}
}
/// 流式检查结果
#[derive(Debug, Clone, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct StreamCheckResult {
pub status: HealthStatus,
pub success: bool,
pub message: String,
pub response_time_ms: Option<u64>,
pub http_status: Option<u16>,
pub model_used: String,
pub tested_at: i64,
pub retry_count: u32,
}
/// 流式健康检查服务
pub struct StreamCheckService;
impl StreamCheckService {
/// 执行流式健康检查(带重试)
pub async fn check_with_retry(
app_type: &AppType,
provider: &Provider,
config: &StreamCheckConfig,
) -> Result<StreamCheckResult, AppError> {
let mut last_result = None;
for attempt in 0..=config.max_retries {
let result = Self::check_once(app_type, provider, config).await;
match &result {
Ok(r) if r.success => {
return Ok(StreamCheckResult {
retry_count: attempt,
..r.clone()
});
}
Ok(r) => {
// 失败但非异常,判断是否重试
if Self::should_retry(&r.message) && attempt < config.max_retries {
last_result = Some(r.clone());
continue;
}
return Ok(StreamCheckResult {
retry_count: attempt,
..r.clone()
});
}
Err(e) => {
if Self::should_retry(&e.to_string()) && attempt < config.max_retries {
continue;
}
return Err(AppError::Message(e.to_string()));
}
}
}
Ok(last_result.unwrap_or_else(|| StreamCheckResult {
status: HealthStatus::Failed,
success: false,
message: "检查失败".to_string(),
response_time_ms: None,
http_status: None,
model_used: String::new(),
tested_at: chrono::Utc::now().timestamp(),
retry_count: config.max_retries,
}))
}
/// 单次流式检查
async fn check_once(
app_type: &AppType,
provider: &Provider,
config: &StreamCheckConfig,
) -> Result<StreamCheckResult, AppError> {
let start = Instant::now();
let adapter = get_adapter(app_type);
let base_url = adapter
.extract_base_url(provider)
.map_err(|e| AppError::Message(format!("提取 base_url 失败: {e}")))?;
let auth = adapter
.extract_auth(provider)
.ok_or_else(|| AppError::Message("未找到 API Key".to_string()))?;
// 使用全局 HTTP 客户端(已包含代理配置)
let client = crate::proxy::http_client::get();
let request_timeout = std::time::Duration::from_secs(config.timeout_secs);
let model_to_test = Self::resolve_test_model(app_type, provider, config);
let result = match app_type {
AppType::Claude => {
Self::check_claude_stream(
&client,
&base_url,
&auth,
&model_to_test,
request_timeout,
)
.await
}
AppType::Codex => {
Self::check_codex_stream(&client, &base_url, &auth, &model_to_test, request_timeout)
.await
}
AppType::Gemini => {
Self::check_gemini_stream(
&client,
&base_url,
&auth,
&model_to_test,
request_timeout,
)
.await
}
};
let response_time = start.elapsed().as_millis() as u64;
let tested_at = chrono::Utc::now().timestamp();
match result {
Ok((status_code, model)) => {
let health_status =
Self::determine_status(response_time, config.degraded_threshold_ms);
Ok(StreamCheckResult {
status: health_status,
success: true,
message: "检查成功".to_string(),
response_time_ms: Some(response_time),
http_status: Some(status_code),
model_used: model,
tested_at,
retry_count: 0,
})
}
Err(e) => Ok(StreamCheckResult {
status: HealthStatus::Failed,
success: false,
message: e.to_string(),
response_time_ms: Some(response_time),
http_status: None,
model_used: String::new(),
tested_at,
retry_count: 0,
}),
}
}
/// Claude 流式检查
async fn check_claude_stream(
client: &Client,
base_url: &str,
auth: &AuthInfo,
model: &str,
timeout: std::time::Duration,
) -> Result<(u16, String), AppError> {
let base = base_url.trim_end_matches('/');
let url = if base.ends_with("/v1") {
format!("{base}/messages")
} else {
format!("{base}/v1/messages")
};
let body = json!({
"model": model,
"max_tokens": 1,
"messages": [{ "role": "user", "content": "hi" }],
"stream": true
});
let response = client
.post(&url)
.header("x-api-key", &auth.api_key)
.header("anthropic-version", "2023-06-01")
.header("Content-Type", "application/json")
.timeout(timeout)
.json(&body)
.send()
.await
.map_err(Self::map_request_error)?;
let status = response.status().as_u16();
if !response.status().is_success() {
let error_text = response.text().await.unwrap_or_default();
return Err(AppError::Message(format!("HTTP {status}: {error_text}")));
}
// 流式读取:只需首个 chunk
let mut stream = response.bytes_stream();
if let Some(chunk) = stream.next().await {
match chunk {
Ok(_) => Ok((status, model.to_string())),
Err(e) => Err(AppError::Message(format!("读取流失败: {e}"))),
}
} else {
Err(AppError::Message("未收到响应数据".to_string()))
}
}
/// Codex 流式检查
async fn check_codex_stream(
client: &Client,
base_url: &str,
auth: &AuthInfo,
model: &str,
timeout: std::time::Duration,
) -> Result<(u16, String), AppError> {
let base = base_url.trim_end_matches('/');
let url = if base.ends_with("/v1") {
format!("{base}/chat/completions")
} else {
format!("{base}/v1/chat/completions")
};
// 解析模型名和推理等级 (支持 model@level 或 model#level 格式)
let (actual_model, reasoning_effort) = Self::parse_model_with_effort(model);
let mut body = json!({
"model": actual_model,
"messages": [
{ "role": "system", "content": "" },
{ "role": "assistant", "content": "" },
{ "role": "user", "content": "hi" }
],
"max_tokens": 1,
"temperature": 0,
"stream": true
});
// 如果是推理模型,添加 reasoning_effort
if let Some(effort) = reasoning_effort {
body["reasoning_effort"] = json!(effort);
}
let response = client
.post(&url)
.header("Authorization", format!("Bearer {}", auth.api_key))
.header("Content-Type", "application/json")
.timeout(timeout)
.json(&body)
.send()
.await
.map_err(Self::map_request_error)?;
let status = response.status().as_u16();
if !response.status().is_success() {
let error_text = response.text().await.unwrap_or_default();
return Err(AppError::Message(format!("HTTP {status}: {error_text}")));
}
let mut stream = response.bytes_stream();
if let Some(chunk) = stream.next().await {
match chunk {
Ok(_) => Ok((status, model.to_string())),
Err(e) => Err(AppError::Message(format!("读取流失败: {e}"))),
}
} else {
Err(AppError::Message("未收到响应数据".to_string()))
}
}
/// Gemini 流式检查
async fn check_gemini_stream(
client: &Client,
base_url: &str,
auth: &AuthInfo,
model: &str,
timeout: std::time::Duration,
) -> Result<(u16, String), AppError> {
let base = base_url.trim_end_matches('/');
let url = format!("{base}/v1/chat/completions");
let body = json!({
"model": model,
"messages": [{ "role": "user", "content": "hi" }],
"max_tokens": 1,
"temperature": 0,
"stream": true
});
let response = client
.post(&url)
.header("Authorization", format!("Bearer {}", auth.api_key))
.header("Content-Type", "application/json")
.timeout(timeout)
.json(&body)
.send()
.await
.map_err(Self::map_request_error)?;
let status = response.status().as_u16();
if !response.status().is_success() {
let error_text = response.text().await.unwrap_or_default();
return Err(AppError::Message(format!("HTTP {status}: {error_text}")));
}
let mut stream = response.bytes_stream();
if let Some(chunk) = stream.next().await {
match chunk {
Ok(_) => Ok((status, model.to_string())),
Err(e) => Err(AppError::Message(format!("读取流失败: {e}"))),
}
} else {
Err(AppError::Message("未收到响应数据".to_string()))
}
}
fn determine_status(latency_ms: u64, threshold: u64) -> HealthStatus {
if latency_ms <= threshold {
HealthStatus::Operational
} else {
HealthStatus::Degraded
}
}
/// 解析模型名和推理等级 (支持 model@level 或 model#level 格式)
/// 返回 (实际模型名, Option<推理等级>)
fn parse_model_with_effort(model: &str) -> (String, Option<String>) {
// 查找 @ 或 # 分隔符
if let Some(pos) = model.find('@').or_else(|| model.find('#')) {
let actual_model = model[..pos].to_string();
let effort = model[pos + 1..].to_string();
if !effort.is_empty() {
return (actual_model, Some(effort));
}
}
(model.to_string(), None)
}
fn should_retry(msg: &str) -> bool {
let lower = msg.to_lowercase();
lower.contains("timeout")
|| lower.contains("abort")
|| lower.contains("中断")
|| lower.contains("超时")
}
fn map_request_error(e: reqwest::Error) -> AppError {
if e.is_timeout() {
AppError::Message("请求超时".to_string())
} else if e.is_connect() {
AppError::Message(format!("连接失败: {e}"))
} else {
AppError::Message(e.to_string())
}
}
fn resolve_test_model(
app_type: &AppType,
provider: &Provider,
config: &StreamCheckConfig,
) -> String {
match app_type {
AppType::Claude => Self::extract_env_model(provider, "ANTHROPIC_MODEL")
.unwrap_or_else(|| config.claude_model.clone()),
AppType::Codex => {
Self::extract_codex_model(provider).unwrap_or_else(|| config.codex_model.clone())
}
AppType::Gemini => Self::extract_env_model(provider, "GEMINI_MODEL")
.unwrap_or_else(|| config.gemini_model.clone()),
}
}
fn extract_env_model(provider: &Provider, key: &str) -> Option<String> {
provider
.settings_config
.get("env")
.and_then(|env| env.get(key))
.and_then(|value| value.as_str())
.map(|value| value.trim().to_string())
.filter(|value| !value.is_empty())
}
fn extract_codex_model(provider: &Provider) -> Option<String> {
let config_text = provider
.settings_config
.get("config")
.and_then(|value| value.as_str())?;
if config_text.trim().is_empty() {
return None;
}
let re = Regex::new(r#"^model\s*=\s*["']([^"']+)["']"#).ok()?;
re.captures(config_text)
.and_then(|caps| caps.get(1))
.map(|m| m.as_str().trim().to_string())
.filter(|value| !value.is_empty())
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_determine_status() {
assert_eq!(
StreamCheckService::determine_status(3000, 6000),
HealthStatus::Operational
);
assert_eq!(
StreamCheckService::determine_status(6000, 6000),
HealthStatus::Operational
);
assert_eq!(
StreamCheckService::determine_status(6001, 6000),
HealthStatus::Degraded
);
}
#[test]
fn test_should_retry() {
assert!(StreamCheckService::should_retry("请求超时"));
assert!(StreamCheckService::should_retry("request timeout"));
assert!(!StreamCheckService::should_retry("API Key 无效"));
}
#[test]
fn test_default_config() {
let config = StreamCheckConfig::default();
assert_eq!(config.timeout_secs, 45);
assert_eq!(config.max_retries, 2);
assert_eq!(config.degraded_threshold_ms, 6000);
}
#[test]
fn test_parse_model_with_effort() {
// 带 @ 分隔符
let (model, effort) = StreamCheckService::parse_model_with_effort("gpt-5.1-codex@low");
assert_eq!(model, "gpt-5.1-codex");
assert_eq!(effort, Some("low".to_string()));
// 带 # 分隔符
let (model, effort) = StreamCheckService::parse_model_with_effort("o1-preview#high");
assert_eq!(model, "o1-preview");
assert_eq!(effort, Some("high".to_string()));
// 无分隔符
let (model, effort) = StreamCheckService::parse_model_with_effort("gpt-4o-mini");
assert_eq!(model, "gpt-4o-mini");
assert_eq!(effort, None);
}
}