net_shell/ssh/
mod.rs

1pub mod local;
2
3use anyhow::{Context, Error, Result};
4use ssh2::Session;
5use std::collections::HashMap;
6use std::fs;
7use std::io::{BufRead, BufReader};
8use std::net::TcpStream;
9use std::path::Path;
10use std::sync::Arc;
11use std::sync::mpsc;
12use std::time::{Duration, Instant};
13use tokio::sync::mpsc as tokio_mpsc;
14use tracing::info;
15
16use crate::models::{ExecutionResult, SshConfig, OutputEvent, OutputType, OutputCallback};
17use crate::Step;
18use crate::vars::VariableManager;
19use crate::ExtractRule;
20
21/// SSH执行器
22pub struct SshExecutor;
23
24impl SshExecutor {
25    /// 通过SSH执行脚本（支持实时输出）
26    pub fn execute_script_with_realtime_output(
27        global_scripts:Arc<Vec<String>>,
28        server_name: &str,
29        ssh_config: &SshConfig, 
30        step: &Step,
31        pipeline_name: &str,
32        step_name: &str,
33        output_callback: Option<OutputCallback>,
34        mut variable_manager: VariableManager,
35        extract_rules: Option<Vec<ExtractRule>>
36    ) -> Result<ExecutionResult> {
37        info!("Connecting to {}:{} as {}", ssh_config.host, ssh_config.port, ssh_config.username);
38
39        // 只用step.script作为脚本路径，不做参数处理
40        let script_path = step.script.as_str(); 
41
42        // 读取本地脚本内容并替换变量
43        let script_content = std::fs::read_to_string(script_path)
44            .context(format!("Failed to read script file: {}", script_path))?;
45
46        let mut gloabl_script_content = global_scripts.iter()
47        .map(|v|std::fs::read_to_string(v).context(format!("read file:[{}]", v)))
48        .fold(Ok("".to_string()), |p:Result<String>,v|{
49            if p.is_err(){
50                return p;
51            }
52
53            if v.is_err(){
54                return Err(Error::msg(format!("{:?}", v.err())));
55            }
56            let content = v.unwrap();
57
58            let mut s = p.unwrap_or_default();
59
60            s.push_str("\n");
61            s.push_str(&content);
62
63            return  Ok(s.clone());
64        })?;
65
66        gloabl_script_content.push_str("\n");
67        gloabl_script_content.push_str(&script_content);
68
69        let script_content = gloabl_script_content.clone();
70
71        variable_manager.set_variable("ssh_server_name".to_string(), server_name.to_string());
72        variable_manager.set_variable("ssh_server_ip".to_string(), ssh_config.host.to_string());
73
74        let script_content = variable_manager.replace_variables(&script_content);
75
76        // 设置连接超时
77        let ssh_timeout_seconds = ssh_config.timeout_seconds.unwrap_or(3);
78        let ssh_timeout_duration = Duration::from_secs(ssh_timeout_seconds);
79
80        // 建立TCP连接（带严格超时）
81        let tcp = connect_with_timeout(&format!("{}:{}", ssh_config.host, ssh_config.port), ssh_timeout_duration)
82            .context("Failed to connect to SSH server")?;
83
84        let timeout_duration = Duration::from_secs(step.timeout_seconds.unwrap_or(30));
85        
86        // 设置TCP连接超时
87        tcp.set_read_timeout(Some(timeout_duration))
88            .context("Failed to set read timeout")?;
89        tcp.set_write_timeout(Some(timeout_duration))
90            .context("Failed to set write timeout")?;
91        tcp.set_nodelay(true)
92            .context("Failed to set TCP nodelay")?;
93
94        // 创建SSH会话
95        let mut sess = Session::new()
96            .context("Failed to create SSH session")?;
97        
98        sess.set_tcp_stream(tcp);
99        
100        // 设置SSH会话超时（使用步骤级别的超时，如果没有则使用默认值）
101        let session_timeout_seconds = step.timeout_seconds.unwrap_or(30);
102        let session_timeout_duration = Duration::from_secs(session_timeout_seconds);
103        sess.set_timeout(session_timeout_duration.as_millis() as u32);
104        
105        // SSH握手（带超时）
106        sess.handshake()
107            .context(format!("SSH handshake failed: timeout {} s", ssh_timeout_seconds))?;
108
109        info!("SSH handshake completed, starting authentication");
110
111        // 认证（带超时）
112        let auth_result = if let Some(ref password) = ssh_config.password {
113            sess.userauth_password(&ssh_config.username, password)
114                .context("SSH password authentication failed")
115        } else if let Some(ref key_path) = ssh_config.private_key_path {
116            sess.userauth_pubkey_file(&ssh_config.username, None, Path::new(key_path), None)
117                .context("SSH key authentication failed")
118        } else {
119            Err(anyhow::anyhow!("No authentication method provided"))
120        };
121
122        auth_result?;
123        info!("SSH authentication successful");
124
125        // 打开远程shell
126        let mut channel = sess.channel_session()
127            .context("Failed to create SSH channel")?;
128        channel.exec("bash")
129            .context("Failed to exec remote shell")?;
130
131        // 把脚本内容写入远程shell的stdin
132        use std::io::Write;
133        channel.write_all(script_content.as_bytes())
134            .context("Failed to write script to remote shell")?;
135        channel.send_eof()
136            .context("Failed to send EOF to remote shell")?;
137
138        // 创建通道用于实时输出
139        let (tx, mut rx) = tokio_mpsc::channel::<OutputEvent>(100);
140        let output_callback = output_callback.map(|cb| Arc::new(cb));
141
142        // 在单独的线程中处理实时输出
143        let server_name = server_name.to_string();
144        let _step_name = step_name.to_string();
145        let pipeline_name = pipeline_name.to_string();
146        let output_callback_clone = output_callback.clone();
147        
148        let output_handle = std::thread::spawn(move || {
149            while let Some(event) = rx.blocking_recv() {
150                if let Some(callback) = &output_callback_clone {
151                    callback(event);
152                }
153            }
154        });
155
156        // 读取stdout和stderr
157        let mut stdout = String::new();
158        let mut stderr = String::new();
159        let start_time = std::time::Instant::now();
160
161        // 实时读取stdout
162        let stdout_stream = channel.stream(0);
163        let mut stdout_reader = BufReader::new(stdout_stream);
164        let mut line = String::new();
165        
166        while stdout_reader.read_line(&mut line)? > 0 {
167            let content = line.clone();
168            stdout.push_str(&content);
169            
170            // 发送实时输出事件
171            let event = OutputEvent {
172                pipeline_name: pipeline_name.clone(),
173                server_name: server_name.clone(),
174                step: step.clone(), // 传递完整的Step对象
175                script_path:step.script.to_string(),
176                output_type: OutputType::Stdout,
177                content: content.trim().to_string(),
178                timestamp: std::time::Instant::now(),
179                variables: variable_manager.get_variables().clone(),
180            };
181            
182            if tx.blocking_send(event).is_err() {
183                break;
184            }
185            
186            line.clear();
187        }
188
189        // 实时读取stderr
190        let stderr_stream = channel.stderr();
191        let mut stderr_reader = BufReader::new(stderr_stream);
192        line.clear();
193        
194        while stderr_reader.read_line(&mut line)? > 0 {
195            let content = line.clone();
196            stderr.push_str(&content);
197            
198            // 发送实时输出事件
199            let event = OutputEvent {
200                pipeline_name: pipeline_name.clone(),
201                server_name: server_name.clone(),
202                step: step.clone(), // 传递完整的Step对象
203                script_path:step.script.to_string(),
204                output_type: OutputType::Stderr,
205                content: content.trim().to_string(),
206                timestamp: std::time::Instant::now(),
207                variables: variable_manager.get_variables().clone(),
208            };
209            
210            if tx.blocking_send(event).is_err() {
211                break;
212            }
213            
214            line.clear();
215        }
216
217        // 等待通道关闭
218        drop(tx);
219        if let Err(e) = output_handle.join() {
220            eprintln!("Output handler thread error: {:?}", e);
221        }
222
223        channel.wait_close()
224            .context("Failed to wait for channel close")?;
225
226        let exit_code = channel.exit_status()
227            .context("Failed to get exit status")?;
228
229        let execution_time = start_time.elapsed().as_millis() as u64;
230        info!("SSH command executed with exit code: {}", exit_code);
231
232        // 创建执行结果
233        let execution_result = ExecutionResult {
234            success: exit_code == 0,
235            stdout,
236            stderr,
237            script: step.script.to_string(),
238            exit_code,
239            execution_time_ms: execution_time,
240            error_message: None,
241        };
242
243        // 提取变量
244        if let Some(rules) = extract_rules {
245            if let Err(e) = variable_manager.extract_variables(&rules, &execution_result) {
246                info!("Failed to extract variables: {}", e);
247            }
248        }
249
250        Ok(execution_result)
251    }
252
253}
254
255/// 工具函数：带超时的TCP连接
256fn connect_with_timeout(addr: &str, timeout: Duration) -> std::io::Result<TcpStream> {
257    let (tx, rx) = mpsc::channel();
258    let addr = addr.to_string();
259    let error_message = format!("connect to {} timeout {} s", addr, timeout.as_secs());
260    std::thread::spawn(move || {
261        let res = TcpStream::connect(addr);
262        let _ = tx.send(res);
263    });
264    rx.recv_timeout(timeout).unwrap_or_else(|_| Err(std::io::Error::new(std::io::ErrorKind::TimedOut, error_message)))
265}
net_shell/ssh/mod.rs

net_shell/ssh/
mod.rs
