use crate::config::Config;
use crate::errors::*;
use crate::engine::{ctx, Environment};
use crate::ipc::child::DummyIpcChild;
use crate::engine::ctx::{State, LuaState};
use crate::geoip::{Maxmind, AsnDB, GeoIP};
use crate::hlua::{Lua, AnyLuaValue};
use crate::paths;
use crate::psl::PslReader;
use crate::shell::readline::Readline;
use crate::runtime::format_lua;
use chrootable_https::Resolver;
use std::collections::HashMap;
use std::sync::Arc;
mod complete;
use self::complete::ReplCompleter;
mod tokenize;
pub struct Repl<'a> {
rl: Readline<ReplCompleter>,
lua: Lua<'a>,
state: Arc<LuaState>,
}
impl<'a> Repl<'a> {
pub fn new(lua: Lua<'a>, state: Arc<LuaState>) -> Result<Repl<'a>> {
let rl = Readline::with(ReplCompleter::default())?;
Ok(Repl {
rl,
lua,
state,
})
}
fn update_globals(&mut self) {
let mut globals = Vec::new();
for (k, _) in self.lua.globals_table().iter::<String, AnyLuaValue>().flatten() {
globals.push(k);
}
if let Some(helper) = self.rl.helper_mut() {
debug!("updating globals: {:?}", globals);
helper.set(globals);
}
}
pub fn run(&mut self) {
loop {
self.update_globals();
match self.rl.readline("> ") {
Ok(line) => {
self.rl.add_history_entry(line.as_str());
self.exec(&line);
},
Err(_) => break,
}
}
}
pub fn exec(&mut self, line: &str) {
match self.lua.execute::<AnyLuaValue>(line) {
Ok(val) => {
if val != AnyLuaValue::LuaNil {
let mut out = String::new();
format_lua(&mut out, &val).expect("out of memory");
println!("{}", out);
}
if let Some(err) = self.state.last_error() {
println!("Error: {}", err);
self.state.clear_error();
}
},
Err(err) => {
println!("Fatal: {}", err);
}
}
}
}
pub fn run(config: &Config) -> Result<()> {
let keyring = Vec::new();
let dns_config = Resolver::from_system_v4()?;
let proxy = config.network.proxy;
let user_agent = config.network.user_agent.clone();
let cache_dir = paths::cache_dir()?;
let psl = PslReader::open(&cache_dir)?;
let geoip = GeoIP::try_open_reader(&cache_dir)?;
let asn = AsnDB::try_open_reader(&cache_dir)?;
let env = Environment {
verbose: 0, keyring,
dns_config,
proxy,
user_agent,
options: HashMap::new(),
blobs: Vec::new(),
psl,
geoip,
asn,
};
let tx = DummyIpcChild::create();
let (lua, state) = ctx::ctx(env, tx);
let mut repl = Repl::new(lua, state)?;
println!(r#":: sn0int v{} lua repl
Assign variables with `a = sn0int_version()` and `return a` to print
Read the docs at https://sn0int.readthedocs.io/en/stable/reference.html
"#, env!("CARGO_PKG_VERSION"));
repl.run();
Ok(())
}