Update main.rs

Author: michal92299

source-code/src/main.rs

@@ -1 +1,313 @@
+use std::fs::{self, File};
+use std::io::{self, BufRead, BufReader, Write};
+use std::path::{Path, PathBuf};
+use std::process::{Command, Stdio};
 
+use anyhow::{Context, Result};
+use lexopt::{Arg, Parser};
+use miette::{miette, IntoDiagnostic, Report, WrapErr};
+use nix::sched::{clone, CloneFlags};
+use nix::sys::wait::waitpid;
+use nix::unistd::{chdir, chroot, Pid};
+use owo_colors::OwoColorize;
+use serde::Deserialize;
+use toml::de::Error as TomlError;
+
+// Custom error type for pretty printing with miette
+#[derive(Debug, miette::Diagnostic)]
+#[error("HackerOS Containers Error: {message}")]
+struct ContainerError {
+    message: String,
+    #[help]
+    help: Option<String>,
+    #[source_code]
+    source_code: Option<String>,
+}
+
+// .hk file structure (TOML-like, but we'll parse it as TOML for simplicity)
+#[derive(Deserialize, Debug)]
+struct HkConfig {
+    metadata: Metadata,
+    description: Description,
+    specs: Specs,
+    #[serde(default)]
+    runtime: Runtime,
+}
+
+#[derive(Deserialize, Debug)]
+struct Metadata {
+    name: String,
+    version: String,
+    authors: String,
+    license: String,
+}
+
+#[derive(Deserialize, Debug)]
+struct Description {
+    summary: String,
+    long: Vec<String>,  // Multiple lines
+}
+
+#[derive(Deserialize, Debug)]
+struct Specs {
+    rust: Option<String>,
+    dependencies: Dependencies,
+}
+
+#[derive(Deserialize, Debug)]
+struct Dependencies {
+    #[serde(rename = "Matrix-Core")]
+    matrix_core: String,
+    #[serde(rename = "Hacker-Lang")]
+    hacker_lang: String,
+    #[serde(rename = "Void-Kernel")]
+    void_kernel: String,
+    #[serde(rename = "HackerOS")]
+    hackeros: String,
+}
+
+#[derive(Deserialize, Debug, Default)]
+struct Runtime {
+    priority: Option<String>,
+    #[serde(rename = "auto-restart")]
+    auto_restart: Option<bool>,
+}
+
+// CLI Commands
+enum CommandType {
+    Run { config_path: PathBuf, runtime: String },
+    List,
+    Status { name: String },
+    Help,
+}
+
+fn parse_args() -> Result<CommandType> {
+    let mut parser = Parser::from_env();
+    let mut config_path = None;
+    let mut runtime = "runc".to_string();  // Default runtime
+
+    while let Some(arg) = parser.next()? {
+        match arg {
+            Arg::Short('r') | Arg::Long("runtime") => {
+                runtime = parser.value()?.into_string()?;
+            }
+            Arg::Short('c') | Arg::Long("config") => {
+                config_path = Some(PathBuf::from(parser.value()?.into_string()?));
+            }
+            Arg::Long("list") => return Ok(CommandType::List),
+            Arg::Long("status") => {
+                let name = parser.value()?.into_string()?;
+                return Ok(CommandType::Status { name });
+            }
+            Arg::Short('h') | Arg::Long("help") => return Ok(CommandType::Help),
+            Arg::Value(val) => {
+                if config_path.is_none() {
+                    config_path = Some(PathBuf::from(val.into_string()?));
+                } else {
+                    return Err(miette!("Unexpected argument: {}", val.string()?));
+                }
+            }
+            _ => return Err(miette!("Unknown argument: {}", arg.unexpected())),
+        }
+    }
+
+    if let Some(path) = config_path {
+        Ok(CommandType::Run {
+            config_path: path,
+            runtime,
+        })
+    } else {
+        Ok(CommandType::Help)
+    }
+}
+
+fn parse_hk_config(path: &Path) -> Result<HkConfig> {
+    // .hk is TOML-like, but starts with comments; we'll skip lines starting with '!'
+    let file = File::open(path).into_diagnostic()?;
+    let reader = BufReader::new(file);
+    let mut toml_content = String::new();
+
+    for line in reader.lines() {
+        let line = line.into_diagnostic()?;
+        if !line.trim_start().starts_with('!') {
+            toml_content.push_str(&line);
+            toml_content.push('\n');
+        }
+    }
+
+    toml::from_str(&toml_content).map_err(|e: TomlError| {
+        miette!("Failed to parse .hk file: {}", e.message())
+            .wrap_err("Invalid .hk format")
+    })
+}
+
+fn setup_namespaces() -> Result<Pid> {
+    // Stack for the child process
+    let mut stack = [0u8; 4096];
+
+    // Clone flags for namespaces
+    let flags = CloneFlags::CLONE_NEWUTS
+        | CloneFlags::CLONE_NEWPID
+        | CloneFlags::CLONE_NEWNS
+        | CloneFlags::CLONE_NEWNET
+        | CloneFlags::CLONE_NEWIPC
+        | CloneFlags::CLONE_NEWUSER;
+
+    let pid = unsafe {
+        clone(
+            Box::new(|| child_process()),
+            &mut stack,
+            flags,
+            Some(nix::sys::signal::Signal::SIGCHLD as i32),
+        )
+        .into_diagnostic()?
+    };
+
+    Ok(pid)
+}
+
+fn child_process() -> isize {
+    // Inside the container: chroot, etc.
+    if let Err(e) = chroot("/path/to/rootfs").context("Failed to chroot") {
+        eprintln!("{}", e);
+        return 1;
+    }
+    if let Err(e) = chdir("/").context("Failed to chdir") {
+        eprintln!("{}", e);
+        return 1;
+    }
+
+    // Exec the process (placeholder)
+    if let Err(e) = nix::unistd::execvp("/bin/sh", &["/bin/sh"].iter().map(|s| s.as_ptr()).collect::<Vec<_>>()).context("Failed to exec") {
+        eprintln!("{}", e);
+        return 1;
+    }
+
+    0
+}
+
+fn run_container(config: &HkConfig, runtime: &str) -> Result<()> {
+    println!(
+        "{} Running container: {} (version {}) with runtime {}",
+        "[INFO]".bold().green(),
+        config.metadata.name.bold().cyan(),
+        config.metadata.version,
+        runtime.bold().yellow()
+    );
+
+    // Simulate runtime selection
+    match runtime {
+        "runc" | "crun" => {
+            println!(
+                "{} Using high-performance runtime (namespaces & cgroups)",
+                "[RUNTIME]".bold().blue()
+            );
+            // Setup namespaces
+            let pid = setup_namespaces()?;
+            waitpid(pid, None).into_diagnostic()?;
+        }
+        "gvisor" => {
+            println!(
+                "{} Using gVisor (userspace kernel) for high isolation",
+                "[RUNTIME]".bold().blue()
+            );
+            // Placeholder: In real impl, integrate with runsc
+            Command::new("runsc")
+                .arg("run")
+                .arg(&config.metadata.name)
+                .status()
+                .into_diagnostic()?;
+        }
+        "kata" => {
+            println!(
+                "{} Using Kata Containers (micro-VM) for max isolation",
+                "[RUNTIME]".bold().blue()
+            );
+            // Placeholder: Integrate with kata-runtime
+            Command::new("kata-runtime")
+                .arg("run")
+                .arg(&config.metadata.name)
+                .status()
+                .into_diagnostic()?;
+        }
+        _ => return Err(miette!("Unknown runtime: {}", runtime)),
+    }
+
+    // Monitor resources (placeholder)
+    println!(
+        "{} Monitoring RAM allocation and data leaks...",
+        "[MONITOR]".bold().magenta()
+    );
+
+    // Auto-restart if enabled
+    if config.runtime.auto_restart.unwrap_or(false) {
+        println!(
+            "{} Auto-restart enabled",
+            "[OPTION]".bold().yellow()
+        );
+    }
+
+    Ok(())
+}
+
+fn list_containers() -> Result<()> {
+    println!("{} Listing active containers:", "[LIST]".bold().green());
+    // Placeholder: Scan for running containers
+    println!("- Matrix-Core (PID: 1234)");
+    Ok(())
+}
+
+fn status_container(name: &str) -> Result<()> {
+    println!(
+        "{} Status for container {}:",
+        "[STATUS]".bold().green(),
+        name.bold().cyan()
+    );
+    // Placeholder
+    println!("- Running: Yes");
+    println!("- RAM Usage: 256MB");
+    println!("- Leaks Detected: None");
+    Ok(())
+}
+
+fn print_help() {
+    println!(
+        "{} HackerOS Containers CLI",
+        "Welcome to".bold().green()
+    );
+    println!("Usage:");
+    println!("  hackeros-containers [OPTIONS] <config.hk>");
+    println!();
+    println!("Commands:");
+    println!("  --list                List all running containers");
+    println!("  --status <name>       Get status of a container");
+    println!("  -h, --help            Print this help");
+    println!();
+    println!("Options:");
+    println!("  -c, --config <path>   Path to .hk config file");
+    println!("  -r, --runtime <name>  Runtime to use (runc, gvisor, kata) [default: runc]");
+}
+
+fn main() -> Result<(), Report> {
+    env_logger::init();
+
+    match parse_args() {
+        Ok(cmd) => match cmd {
+            CommandType::Run {
+                config_path,
+                runtime,
+            } => {
+                let config = parse_hk_config(&config_path)?;
+                run_container(&config, &runtime)?;
+            }
+            CommandType::List => list_containers()?,
+            CommandType::Status { name } => status_container(&name)?,
+            CommandType::Help => print_help(),
+        },
+        Err(e) => {
+            return Err(e.into());
+        }
+    }
+
+    Ok(())
+}