From a27d7b1fdc8be778f7f055294becb3bbf86ce21f Mon Sep 17 00:00:00 2001
From: zzhengzhuo015 <zzhengzhuo015@gmail.com>
Date: Sun, 8 Mar 2026 13:55:35 +0800
Subject: [PATCH] fix: fix sftp timeout error

---
 clawpal-core/src/ssh/mod.rs | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/clawpal-core/src/ssh/mod.rs b/clawpal-core/src/ssh/mod.rs
index b2adbd1..6c05d3b 100644
--- a/clawpal-core/src/ssh/mod.rs
+++ b/clawpal-core/src/ssh/mod.rs
@@ -190,6 +190,11 @@ impl SshSession {
             .channel_open_session()
             .await
             .map_err(|e| SshError::Sftp(e.to_string()))?;
+        channel
+            .request_subsystem(true, "sftp")
+            .await
+            .map_err(|e| SshError::Sftp(e.to_string()))?;
+
         let sftp = russh_sftp::client::SftpSession::new(channel.into_stream())
             .await
             .map_err(|e| SshError::Sftp(e.to_string()))?;
@@ -221,10 +226,16 @@ impl SshSession {
             Backend::Russh { handle } => handle.clone(),
             Backend::Legacy => return self.sftp_write_legacy(path, content).await,
         };
+
         let channel = handle
             .channel_open_session()
             .await
             .map_err(|e| SshError::Sftp(e.to_string()))?;
+        channel
+            .request_subsystem(true, "sftp")
+            .await
+            .map_err(|e| SshError::Sftp(e.to_string()))?;
+
         let sftp = russh_sftp::client::SftpSession::new(channel.into_stream())
             .await
             .map_err(|e| SshError::Sftp(e.to_string()))?;