Signed-off-by: Dmytro Stanchiev <git@dmytros.dev>
This commit is contained in:
2025-10-31 11:11:58 -04:00
parent 92ace9b698
commit ed49f19868
3 changed files with 908 additions and 3 deletions

684
Cargo.lock generated
View File

@@ -3,5 +3,687 @@
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checksum = "f0805222e57f7521d6a62e36fa9163bc891acd422f971defe97d64e70d0a4fe5"
[[package]]
name = "windows-sys"
version = "0.61.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ae137229bcbd6cdf0f7b80a31df61766145077ddf49416a728b02cb3921ff3fc"
dependencies = [
"windows-link",
]
[[package]]
name = "yaml-rust"
version = "0.4.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "56c1936c4cc7a1c9ab21a1ebb602eb942ba868cbd44a99cb7cdc5892335e1c85"
dependencies = [
"linked-hash-map",
]
[[package]]
name = "zerocopy"
version = "0.8.27"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0894878a5fa3edfd6da3f88c4805f4c8558e2b996227a3d864f47fe11e38282c"
dependencies = [
"zerocopy-derive",
]
[[package]]
name = "zerocopy-derive"
version = "0.8.27"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "88d2b8d9c68ad2b9e4340d7832716a4d21a22a1154777ad56ea55c51a9cf3831"
dependencies = [
"proc-macro2",
"quote",
"syn",
]

View File

@@ -1,6 +1,12 @@
[package] [package]
name = "rust-boilerplate" name = "moshy"
version = "0.1.0" version = "0.1.0"
edition = "2024" edition = "2024"
[dependencies] [dependencies]
clap = "3.0"
config = "0.13"
env_logger = "0.9"
log = "0.4"
rand = "0.8"
shell-words = "1.1"

View File

@@ -1,3 +1,220 @@
use std::collections::HashMap;
use std::env;
use std::path::Path;
use std::process::{self, Command};
use std::str;
use clap::{App, Arg, ArgMatches};
use config::{Config, File, FileFormat};
use log::{LevelFilter, debug, info};
use rand::Rng;
use shell_words;
fn main() { fn main() {
println!("Hello, world!"); let matches = App::new("moshy")
.version("1.0")
.author("Kevin Roy <kiniou@gmail.com>")
.about("Mosh powered with profiles")
.arg(
Arg::with_name("debug")
.short('d')
.long("debug")
.help("Debug moshy to see what's done in background"),
)
.arg(
Arg::with_name("dry-run")
.short('n')
.long("dry-run")
.help("Shows what will be executed"),
)
.subcommand(
App::new("list")
.about("List every remote hostname configured as profile")
.arg(
Arg::with_name("verbose")
.short('v')
.long("verbose")
.help("Increase verbosity"),
),
)
.arg(
Arg::with_name("hostname")
.help("<hostname> parameter match configuration sections and can be formatted like the following: hostname, user@hostname, hostname:flavor, user@hostname:flavor")
.required(false),
)
.arg(
Arg::with_name("cmd")
.multiple(true)
.help("Extra arguments which will be executed to the remote mosh session")
.required(false),
)
.get_matches();
// Set up logging
let mut log_level = LevelFilter::Info;
if matches.is_present("debug") {
log_level = LevelFilter::Debug;
}
env_logger::Builder::new().filter_level(log_level).init();
debug!("Got following arguments:\n{:?}", matches);
// Config paths
let config_paths = vec![
"/etc/moshy.conf".to_string(),
format!(
"{}/.moshy.conf",
env::var("HOME").unwrap_or_else(|_| "".to_string())
),
];
// Read config
let mut config_builder = Config::builder();
for path in &config_paths {
if Path::new(path).exists() {
config_builder =
config_builder.add_source(File::with_name(path).format(FileFormat::Ini));
}
}
let config = config_builder.build().unwrap_or_else(|e| {
eprintln!("Error reading config: {}", e);
process::exit(1);
});
if let Some(list_matches) = matches.subcommand_matches("list") {
let sections: Vec<String> = config
.get_table("")
.unwrap_or_default()
.keys()
.cloned()
.collect();
if list_matches.is_present("verbose") {
// In verbose mode, perhaps print more details, but original only lists sections
println!("{}", sections.join("\n"));
} else {
println!("{}", sections.join("\n"));
}
process::exit(0);
}
let hostname_arg = matches.value_of("hostname").unwrap_or("");
let mut host_setup = parse_hostname(hostname_arg, &config);
debug!("Required host setup:\n{:?}", host_setup);
let mut cmd = vec!["/usr/bin/env".to_string(), "mosh".to_string()];
if let Some(ports) = &host_setup.ports {
let ports_split: Vec<&str> = ports.split(':').collect();
let port = if ports_split.len() > 1 {
let start: u16 = ports_split[0].parse().unwrap_or(0);
let end: u16 = ports_split[1].parse().unwrap_or(0);
rand::thread_rng().gen_range(start..=end)
} else {
ports_split[0].parse().unwrap_or(0)
};
cmd.push(format!("--port={}", port));
}
cmd.push(host_setup.host.clone());
let mut extra_cmd: Option<Vec<String>> = None;
if let Some(cmd_args) = matches.values_of("cmd") {
let cmd_vec: Vec<String> = cmd_args.map(|s| s.to_string()).collect();
if cmd_vec.len() == 1 {
extra_cmd = shell_words::split(&cmd_vec[0]).ok();
} else {
extra_cmd = Some(cmd_vec);
}
}
if let Some(ref mut cmd_setup) = host_setup.cmd {
if let Some(extra) = extra_cmd {
cmd_setup.extend(extra);
}
} else if let Some(extra) = extra_cmd {
host_setup.cmd = Some(extra);
}
if let Some(cmd_setup) = &host_setup.cmd {
cmd.push("--".to_string());
cmd.extend(cmd_setup.clone());
}
let log_msg = format!("Will execute the following command:\n {}", cmd.join(" "));
if matches.is_present("dry-run") {
info!("{}", log_msg);
println!("{:?}", cmd);
} else {
debug!("{}", log_msg);
let mut child = Command::new(&cmd[0])
.args(&cmd[1..])
.spawn()
.expect("Failed to execute command");
child.wait().expect("Command wasn't running");
}
process::exit(0);
}
#[derive(Debug, Clone)]
struct HostSetup {
host: String,
ports: Option<String>,
cmd: Option<Vec<String>>,
}
fn parse_hostname(hostname_argument: &str, config: &Config) -> HostSetup {
let mut host_setup = HostSetup {
host: "".to_string(),
ports: None,
cmd: None,
};
if !hostname_argument.is_empty() {
debug!("Parsing hostname argument '{}'", hostname_argument);
let connection: Vec<&str> = hostname_argument.split('@').collect();
let hostname = if connection.len() > 1 {
connection[1]
} else {
connection[0]
};
let mut profiles = Vec::new();
if config.get_table(hostname).is_ok() {
profiles.push(hostname.to_string());
}
let flavor: Vec<&str> = hostname.split(':').collect();
if flavor.len() > 1 {
let hostname_no_flavor = flavor[0];
if config.get_table(hostname_no_flavor).is_ok() {
profiles.push(hostname_no_flavor.to_string());
}
}
debug!("Found hostname profile(s) {}", hostname);
debug!("Profile(s) to look for values :\n{:?}", profiles);
host_setup.host = hostname.to_string();
profiles.reverse();
for profile in profiles {
debug!("Get values from {}", profile);
if let Ok(table) = config.get_table(&profile) {
debug!("profile config:\n{:?}", table);
if let Some(ports) = table.get("port").and_then(|v| v.clone().into_string().ok()) {
host_setup.ports = Some(ports);
}
debug!("ports:{:?}", host_setup.ports);
if let Some(cmd_str) = table.get("cmd").and_then(|v| v.clone().into_string().ok()) {
if let Ok(cmd_vec) = shell_words::split(&cmd_str) {
host_setup.cmd = Some(cmd_vec);
}
}
debug!("command:{:?}", host_setup.cmd);
}
}
}
host_setup
} }