Signed-off-by: 0xf8 <0xf8.dev@proton.me>
This commit is contained in:
0xf8 2023-02-25 12:05:07 -05:00
parent c8ad7f0086
commit c1c31367e0
Signed by: 0xf8
GPG Key ID: 446580D758689584
4 changed files with 367 additions and 2 deletions

14
.fleet/run.json Normal file
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@ -0,0 +1,14 @@
{
"configurations": [
{
"type": "cargo",
"name": "Debug",
"cargoArgs": ["run"],
},
{
"type": "cargo",
"name": "Release",
"cargoArgs": ["run", "-r"],
},
]
}

181
Cargo.lock generated
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@ -2,6 +2,187 @@
# It is not intended for manual editing. # It is not intended for manual editing.
version = 3 version = 3
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dependencies = [
"matches",
"unicode-bidi",
"unicode-normalization",
]
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name = "json"
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"libc",
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"rdrand",
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dependencies = [
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"resolve",
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@ -6,3 +6,6 @@ edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies] [dependencies]
argparse = "0.2.2"
json = "0.12.4"
resolve = "0.2.0"

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@ -1,5 +1,172 @@
use argparse::{ArgumentParser, List, Store};
use resolve::{record, DnsConfig, DnsResolver};
use std::time::Duration;
#[derive(Debug, Clone)]
struct Record {
pub host: String,
pub addr: String,
}
#[derive(Debug)]
enum OutputParser {
Plain,
JSON { pretty: bool },
JSONPretty { pretty: bool },
CSV,
}
struct Resolver {
resolver: DnsResolver,
}
impl Resolver {
pub fn init() -> Resolver {
let config = DnsConfig {
timeout: Duration::from_secs(3),
attempts: 2,
use_inet6: false,
..DnsConfig::load_default().expect("Couldn't get default DnsConfig")
};
Resolver {
resolver: DnsResolver::new(config).expect("Couldn't create DNS resolver"),
}
}
pub fn resolve(&self, host: &str) -> Vec<Record> {
let rec4 = self
.resolver
.resolve_record::<record::A>(host)
.unwrap_or(vec![]);
let rec6 = self
.resolver
.resolve_record::<record::AAAA>(host)
.unwrap_or(vec![]);
let mut recs: Vec<Record> = vec![];
for r in rec4 {
recs.insert(
0,
Record {
host: host.to_owned(),
addr: r.address.to_string(),
},
)
}
for r in rec6 {
recs.insert(
0,
Record {
host: host.to_owned(),
addr: r.address.to_string(),
},
)
}
recs.sort_unstable_by(|a, b| a.addr.len().cmp(&b.addr.len()));
recs
}
}
fn main() { fn main() {
println!("Hello, world!"); let mut output_flag = String::from("Default");
let mut hosts: Vec<String> = vec![];
// Argument parser
{
let mut args = ArgumentParser::new();
args.set_description("Resolve Host(s) to IP Address(es).");
// -o, --output, --parser
args.refer(&mut output_flag).add_option(
&["-o", "--output", "--parser"],
Store,
"Select how the response is outputted: [Default, Plain, JSON, JSON Pretty, CSV]",
);
// Positional arg: hosts
args.refer(&mut hosts)
.add_argument("hosts", List, "Hosts to resolve")
.required();
args.parse_args_or_exit();
}
// OutputParser
let output = match output_flag.to_lowercase().as_str() {
"default" | "plain" | "" => OutputParser::Plain,
"json" => OutputParser::JSON { pretty: false },
"json-pretty" | "json_pretty" | "json pretty" | "jsonpretty" => {
OutputParser::JSONPretty { pretty: true }
}
"csv" => OutputParser::CSV,
_ => {
eprintln!("[FATAL] Invalid output parser: \"{output_flag}\"");
std::process::exit(1)
}
};
// No hosts
if hosts.is_empty() {
eprintln!("[Fatal] No hosts given");
std::process::exit(1)
}
// Resolver
let resolver: Resolver = Resolver::init();
let mut record_pile: Vec<Record> = vec![];
for h in hosts {
record_pile.append(&mut resolver.resolve(h.as_str()));
}
match output {
// Plain / Default output
OutputParser::Plain => {
for r in record_pile {
println!("{}: {}", r.host, r.addr)
}
}
// JSON / JSON Pretty output
OutputParser::JSON { pretty } | OutputParser::JSONPretty { pretty } => {
let mut rj = json::object! { records: {} };
for r in record_pile {
if rj["records"][&r.host].is_null() {
rj["records"]
.insert(
&r.host,
json::parse(&format!("[\"{}\"]", r.addr))
.expect("Unable to parse JSON"),
)
.expect("Unable to insert record into JSON");
} else {
rj["records"][&r.host]
.push(r.addr)
.expect("Unable to insert record into JSON");
}
}
println!(
"{}",
match pretty {
true => rj.pretty(2),
false => rj.dump(),
}
);
}
// CSV output
OutputParser::CSV => {
println!("\"Host\", \"Address\"");
for r in record_pile {
println!("\"{}\", \"{}\"", r.host, r.addr)
}
}
// _ => (),
}
} }