bumb toolchain & add sftp client example

Author: AspectUnk

README.md

@@ -60,7 +60,7 @@ This is a fork of [Thrussh](https://nest.pijul.com/pijul/thrussh) by Pierre-Éti
 
 ## Ecosystem
 
-* [russh-sftp](https://crates.io/crates/russh-sftp) - server-side SFTP subsystem support for `russh` - see `russh/examples/sftp_server.rs`.
+* [russh-sftp](https://crates.io/crates/russh-sftp) - server-side and client-side SFTP subsystem support for `russh` - see `russh/examples/sftp_server.rs` or `russh/examples/sftp_client.rs`.
 * [async-ssh2-tokio](https://crates.io/crates/async-ssh2-tokio) - simple high-level API for running commands over SSH.
 
 ## Contributors ✨

russh/Cargo.toml

@@ -66,7 +66,7 @@ tokio = { version = "1.17.0", features = [
     "sync",
     "macros",
 ] }
-russh-sftp = "1.1"
+russh-sftp = "2.0.0-beta.1"
 
 [package.metadata.docs.rs]
 features = ["openssl"]

russh/examples/sftp_client.rs

@@ -0,0 +1,102 @@
+use async_trait::async_trait;
+use log::{error, info, LevelFilter};
+use russh::*;
+use russh_keys::*;
+use russh_sftp::client::SftpSession;
+use std::sync::Arc;
+use tokio::io::{AsyncReadExt, AsyncSeekExt, AsyncWriteExt};
+
+struct Client;
+
+#[async_trait]
+impl client::Handler for Client {
+    type Error = anyhow::Error;
+
+    async fn check_server_key(
+        self,
+        server_public_key: &key::PublicKey,
+    ) -> Result<(Self, bool), Self::Error> {
+        info!("check_server_key: {:?}", server_public_key);
+        Ok((self, true))
+    }
+
+    async fn data(
+        self,
+        channel: ChannelId,
+        data: &[u8],
+        session: client::Session,
+    ) -> Result<(Self, client::Session), Self::Error> {
+        info!("data on channel {:?}: {}", channel, data.len());
+        Ok((self, session))
+    }
+}
+
+#[tokio::main]
+async fn main() {
+    env_logger::builder()
+        .filter_level(LevelFilter::Debug)
+        .init();
+
+    let config = russh::client::Config::default();
+    let sh = Client {};
+    let mut session = russh::client::connect(Arc::new(config), ("localhost", 22), sh)
+        .await
+        .unwrap();
+    if session.authenticate_password("root", "pass").await.unwrap() {
+        let mut channel = session.channel_open_session().await.unwrap();
+        channel.request_subsystem(true, "sftp").await.unwrap();
+        let sftp = SftpSession::new(channel.into_stream()).await.unwrap();
+        info!("current path: {:?}", sftp.canonicalize(".").await.unwrap());
+
+        // create dir and symlink
+        let path = "./some_kind_of_dir";
+        let symlink = "./symlink";
+
+        sftp.create_dir(path).await.unwrap();
+        sftp.symlink(path, symlink).await.unwrap();
+
+        info!("dir info: {:?}", sftp.metadata(path).await.unwrap());
+        info!(
+            "symlink info: {:?}",
+            sftp.symlink_metadata(path).await.unwrap()
+        );
+
+        // scanning directory
+        for entry in sftp.read_dir(".").await.unwrap() {
+            info!("file in directory: {:?}", entry.file_name());
+        }
+
+        sftp.remove_file(symlink).await.unwrap();
+        sftp.remove_dir(path).await.unwrap();
+
+        // interaction with i/o
+        let filename = "test_new.txt";
+        let mut file = sftp.create(filename).await.unwrap();
+        info!("metadata by handle: {:?}", file.metadata().await.unwrap());
+
+        file.write_all(b"magic text").await.unwrap();
+        info!("flush: {:?}", file.flush().await); // or file.sync_all()
+        info!(
+            "current cursor position: {:?}",
+            file.stream_position().await
+        );
+
+        let mut str = String::new();
+
+        file.rewind().await.unwrap();
+        file.read_to_string(&mut str).await.unwrap();
+        file.rewind().await.unwrap();
+
+        info!(
+            "our magical contents: {}, after rewind: {:?}",
+            str,
+            file.stream_position().await
+        );
+
+        file.shutdown().await.unwrap();
+        sftp.remove_file(filename).await.unwrap();
+
+        // should fail because handle was closed
+        error!("should fail: {:?}", file.read_u8().await);
+    }
+}

russh/examples/sftp_server.rs

@@ -151,10 +151,12 @@ impl russh_sftp::server::Handler for SftpSession {
                 files: vec![
                     File {
                         filename: "foo".to_string(),
+                        longname: "".to_string(),
                         attrs: FileAttributes::default(),
                     },
                     File {
                         filename: "bar".to_string(),
+                        longname: "".to_string(),
                         attrs: FileAttributes::default(),
                     },
                 ],
@@ -169,6 +171,7 @@ impl russh_sftp::server::Handler for SftpSession {
             id,
             files: vec![File {
                 filename: "/".to_string(),
+                longname: "".to_string(),
                 attrs: FileAttributes::default(),
             }],
         })
@@ -185,7 +188,6 @@ async fn main() {
         auth_rejection_time: Duration::from_secs(3),
         auth_rejection_time_initial: Some(Duration::from_secs(0)),
         keys: vec![KeyPair::generate_ed25519().unwrap()],
-        inactivity_timeout: Some(Duration::from_secs(3600)),
         ..Default::default()
     };
 

rust-toolchain.toml

@@ -1,2 +1,2 @@
 [toolchain]
-channel = "1.65.0"
+channel = "1.70.0"