62 lines
2 KiB
Rust
62 lines
2 KiB
Rust
// Copyright (c) 2019 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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use std::convert::TryFrom;
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use std::io::{self, Read};
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use std::env;
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use xmpp_parsers::{
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Element,
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disco::DiscoInfoResult,
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caps::{Caps, compute_disco as compute_disco_caps, hash_caps},
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ecaps2::{ECaps2, compute_disco as compute_disco_ecaps2, hash_ecaps2},
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hashes::Algo,
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};
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fn get_caps(disco: &DiscoInfoResult, node: String) -> Result<Caps, String> {
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let caps_data = compute_disco_caps(&disco);
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let caps_hash = hash_caps(&caps_data, Algo::Sha_1)?;
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Ok(Caps::new(node, caps_hash))
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}
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fn get_ecaps2(disco: &DiscoInfoResult) -> Result<ECaps2, String> {
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let ecaps2_data = compute_disco_ecaps2(&disco).unwrap();
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let ecaps2_sha256 = hash_ecaps2(&ecaps2_data, Algo::Sha_256)?;
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let ecaps2_sha3_256 = hash_ecaps2(&ecaps2_data, Algo::Sha3_256)?;
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Ok(ECaps2::new(vec![ecaps2_sha256, ecaps2_sha3_256]))
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}
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fn main() -> Result<(), ()> {
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let args: Vec<_> = env::args().collect();
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if args.len() != 2 {
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println!("Usage: {} <node>", args[0]);
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return Err(());
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}
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let node = args[1].clone();
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eprintln!("Reading a disco#info payload from stdin...");
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// Read from stdin.
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let stdin = io::stdin();
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let mut data = String::new();
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let mut handle = stdin.lock();
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handle.read_to_string(&mut data).unwrap();
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// Parse the payload into a DiscoInfoResult.
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let elem: Element = data.parse().unwrap();
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let disco = DiscoInfoResult::try_from(elem).unwrap();
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// Compute both kinds of caps.
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let caps = get_caps(&disco, node).unwrap();
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let ecaps2 = get_ecaps2(&disco).unwrap();
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// Print them.
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let caps_elem = Element::from(caps);
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let ecaps2_elem = Element::from(ecaps2);
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println!("{}", String::from(&caps_elem));
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println!("{}", String::from(&ecaps2_elem));
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Ok(())
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}
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