release(secrets-mcp): 0.5.6

修复 OAuth 解绑时非法聚合 FOR UPDATE，Web OAuth 审计 IP 与 TRUST_PROXY 对齐并校验 IP，账号绑定写入 oauth_state 失败时回滚 bind 标记。回滚条目时恢复 folder/type，导入冲突检查在 DB 失败时传播错误，MCP delete/history 要求已登录用户，全局请求体 10MiB 限制。CI 部署支持 DEPLOY_KNOWN_HOSTS，默认 accept-new；文档与 deploy 示例补充连接池、限流、TRUST_PROXY。移除含明文凭据的 sync-test-to-prod 脚本。

crates/secrets-mcp/src/web.rs

@@ -1,6 +1,6 @@
 use askama::Template;
 use chrono::SecondsFormat;
-use std::net::SocketAddr;
+use std::net::{IpAddr, SocketAddr};
 
 use axum::{
     Json, Router,
@@ -176,14 +176,33 @@ async fn current_user_id(session: &Session) -> Option<Uuid> {
 }
 
 fn request_client_ip(headers: &HeaderMap, connect_info: ConnectInfo<SocketAddr>) -> Option<String> {
-    if let Some(first) = headers
-        .get("x-forwarded-for")
-        .and_then(|v| v.to_str().ok())
-        .and_then(|s| s.split(',').next())
-    {
-        let value = first.trim();
-        if !value.is_empty() {
-            return Some(value.to_string());
+    let trust_proxy = std::env::var("TRUST_PROXY")
+        .as_deref()
+        .is_ok_and(|v| matches!(v, "1" | "true" | "yes"));
+    request_client_ip_with_trust_proxy(headers, connect_info, trust_proxy)
+}
+
+fn request_client_ip_with_trust_proxy(
+    headers: &HeaderMap,
+    connect_info: ConnectInfo<SocketAddr>,
+    trust_proxy: bool,
+) -> Option<String> {
+    if trust_proxy {
+        if let Some(first) = headers
+            .get("x-forwarded-for")
+            .and_then(|v| v.to_str().ok())
+            .and_then(|s| s.split(',').next())
+        {
+            let value = first.trim();
+            if let Ok(ip) = value.parse::<IpAddr>() {
+                return Some(ip.to_string());
+            }
+        }
+        if let Some(value) = headers.get("x-real-ip").and_then(|v| v.to_str().ok()) {
+            let value = value.trim();
+            if let Ok(ip) = value.parse::<IpAddr>() {
+                return Some(ip.to_string());
+            }
         }
     }
 
@@ -234,10 +253,6 @@ pub fn web_router() -> Router<AppState> {
         .route("/entries", get(entries_page))
         .route("/audit", get(audit_page))
         .route("/account/bind/google", get(account_bind_google))
-        .route(
-            "/account/bind/google/callback",
-            get(account_bind_google_callback),
-        )
         .route("/account/unbind/{provider}", post(account_unbind))
         .route("/api/key-salt", get(api_key_salt))
         .route("/api/key-setup", post(api_key_setup))
@@ -909,14 +924,9 @@ async fn account_bind_google(
             StatusCode::INTERNAL_SERVER_ERROR
         })?;
 
-    let redirect_uri = format!("{}/account/bind/google/callback", state.base_url);
-    let mut cfg = state
-        .google_config
-        .clone()
-        .ok_or(StatusCode::SERVICE_UNAVAILABLE)?;
-    cfg.redirect_uri = redirect_uri;
-    let st = random_state();
-    if let Err(e) = session.insert(SESSION_OAUTH_STATE, &st).await {
+    let config = google_cfg(&state).ok_or(StatusCode::SERVICE_UNAVAILABLE)?;
+    let oauth_state = random_state();
+    if let Err(e) = session.insert(SESSION_OAUTH_STATE, &oauth_state).await {
         tracing::error!(error = %e, "failed to insert oauth_state for account bind flow");
         if let Err(rm) = session.remove::<bool>(SESSION_OAUTH_BIND_MODE).await {
             tracing::warn!(error = %rm, "failed to roll back oauth_bind_mode after oauth_state insert failure");
@@ -924,34 +934,8 @@ async fn account_bind_google(
         return Err(StatusCode::INTERNAL_SERVER_ERROR);
     }
 
-    Ok(Redirect::to(&google_auth_url(&cfg, &st)).into_response())
-}
-
-async fn account_bind_google_callback(
-    State(state): State<AppState>,
-    connect_info: ConnectInfo<SocketAddr>,
-    headers: HeaderMap,
-    session: Session,
-    Query(params): Query<OAuthCallbackQuery>,
-) -> Result<Response, StatusCode> {
-    let client_ip = request_client_ip(&headers, connect_info);
-    let user_agent = request_user_agent(&headers);
-    handle_oauth_callback(
-        &state,
-        &session,
-        params,
-        "google",
-        client_ip.as_deref(),
-        user_agent.as_deref(),
-        |s, cfg, code| {
-            Box::pin(crate::oauth::google::exchange_code(
-                &s.http_client,
-                cfg,
-                code,
-            ))
-        },
-    )
-    .await
+    let url = google_auth_url(config, &oauth_state);
+    Ok(Redirect::to(&url).into_response())
 }
 
 async fn account_unbind(
@@ -1742,6 +1726,34 @@ fn format_audit_target(folder: &str, entry_type: &str, name: &str) -> String {
 mod tests {
     use super::*;
 
+    #[test]
+    fn request_client_ip_ignores_forwarded_headers_without_trusted_proxy() {
+        let mut headers = HeaderMap::new();
+        headers.insert("x-forwarded-for", "203.0.113.10".parse().unwrap());
+
+        let ip = request_client_ip_with_trust_proxy(
+            &headers,
+            ConnectInfo(SocketAddr::from(([127, 0, 0, 1], 9315))),
+            false,
+        );
+
+        assert_eq!(ip.as_deref(), Some("127.0.0.1"));
+    }
+
+    #[test]
+    fn request_client_ip_uses_valid_forwarded_header_with_trusted_proxy() {
+        let mut headers = HeaderMap::new();
+        headers.insert("x-forwarded-for", "203.0.113.10, 10.0.0.1".parse().unwrap());
+
+        let ip = request_client_ip_with_trust_proxy(
+            &headers,
+            ConnectInfo(SocketAddr::from(([127, 0, 0, 1], 9315))),
+            true,
+        );
+
+        assert_eq!(ip.as_deref(), Some("203.0.113.10"));
+    }
+
     #[test]
     fn request_ui_lang_prefers_zh_cn_over_en_fallback() {
         let mut headers = HeaderMap::new();