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// Copyright 2017 rust-ipfs-api Developers
//
// Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or
// http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
// http://opensource.org/licenses/MIT>, at your option. This file may not be
// copied, modified, or distributed except according to those terms.
//
use clap::{App, ArgMatches};
use command::EXPECTED_API;
use futures::stream::Stream;
use ipfs_api::IpfsClient;
use ipfs_api::response::DhtMessage;
use tokio_core::reactor::Core;
pub fn signature<'a, 'b>() -> App<'a, 'b> {
clap_app!(
@subcommand dht =>
(@setting SubcommandRequiredElseHelp)
(@subcommand findpeer =>
(about: "Query the DHT for all of the multiaddresses associated with a Peer ID")
(@arg PEER: +required "Peer to search for")
)
(@subcommand findprovs =>
(about: "Find peers in the DHT that can provide the given key")
(@arg KEY: +required "Key to search for")
)
(@subcommand get =>
(about: "Given a key, query the DHT for its best value")
(@arg KEY: +required "The key search for")
)
(@subcommand provide =>
(about: "Announce to the network that you are providing the given values")
(@arg KEY: +required "The key you are providing")
)
(@subcommand put =>
(about: "Write a key/value pair to the DHT")
(@arg KEY: +required "The key to store the value at")
(@arg VALUE: +required "The value to store")
)
(@subcommand query =>
(about: "Find the closest peer to a given peer by querying the DHT")
(@arg PEER: +required "The peer to run the query against")
)
)
}
fn print_dht_response<E>(res: DhtMessage) -> Result<(), E> {
println!("");
println!(" id : {}", res.id);
println!(" type : {:?}", res.typ);
println!(" responses :");
for peer_res in res.responses {
println!(" id : {}", peer_res.id);
println!(" addrs :");
for addr in peer_res.addrs {
println!(" {}", addr);
}
println!("");
}
println!(" extra : {}", res.extra);
println!("");
Ok(())
}
pub fn handle(core: &mut Core, client: &IpfsClient, args: &ArgMatches) {
let req = match args.subcommand() {
("findpeer", Some(args)) => {
let peer = args.value_of("PEER").unwrap();
client.dht_findpeer(&peer)
}
("findprovs", Some(args)) => {
let key = args.value_of("KEY").unwrap();
client.dht_findprovs(&key)
}
("get", Some(args)) => {
let key = args.value_of("KEY").unwrap();
client.dht_get(&key)
}
("provide", Some(args)) => {
let key = args.value_of("KEY").unwrap();
client.dht_provide(&key)
}
("put", Some(args)) => {
let key = args.value_of("KEY").unwrap();
let val = args.value_of("VALUE").unwrap();
client.dht_put(&key, &val)
}
("query", Some(args)) => {
let peer = args.value_of("PEER").unwrap();
client.dht_query(&peer)
}
_ => unreachable!(),
};
core.run(req.for_each(print_dht_response)).expect(
EXPECTED_API,
);
}
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