feat: node discovery via DNS

iroh-base/src/node_addr.rs

@@ -4,7 +4,7 @@ use anyhow::Context;
 use serde::{Deserialize, Serialize};
 use url::Url;
 
-use crate::key::PublicKey;
+use crate::key::{NodeId, PublicKey};
 
 /// A peer and it's addressing information.
 #[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
@@ -63,6 +63,12 @@ impl From<(PublicKey, Option<RelayUrl>, &[SocketAddr])> for NodeAddr {
     }
 }
 
+impl From<NodeId> for NodeAddr {
+    fn from(node_id: NodeId) -> Self {
+        NodeAddr::new(node_id)
+    }
+}
+
 /// Addressing information to connect to a peer.
 #[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq, Default)]
 pub struct AddrInfo {
@@ -142,6 +148,12 @@ impl FromStr for RelayUrl {
     }
 }
 
+impl From<RelayUrl> for Url {
+    fn from(value: RelayUrl) -> Self {
+        value.0
+    }
+}
+
 /// Dereference to the wrapped [`Url`].
 ///
 /// Note that [`DerefMut`] is not implemented on purpose, so this type has more flexibility

iroh-cli/src/commands/blob.rs

@@ -236,11 +236,6 @@ impl BlobCommands {
                     return Err(anyhow::anyhow!("The input arguments refer to a collection of blobs and output is set to STDOUT. Only single blobs may be passed in this case."));
                 }
 
-                if node_addr.info.is_empty() {
-                    return Err(anyhow::anyhow!(
-                        "no relay url provided and no direct addresses provided"
-                    ));
-                }
                 let tag = match tag {
                     Some(tag) => SetTagOption::Named(Tag::from(tag)),
                     None => SetTagOption::Auto,

iroh-net/Cargo.toml

@@ -29,6 +29,8 @@ flume = "0.11"
 futures = "0.3.25"
 governor = "0.6.0"
 hex = "0.4.3"
+hickory-proto = "0.24.0"
+hickory-resolver = "0.24.0"
 hostname = "0.3.1"
 http = "1"
 http-body-util = "0.1.0"
@@ -40,6 +42,7 @@ libc = "0.2.139"
 num_enum = "0.7"
 once_cell = "1.18.0"
 parking_lot = "0.12.1"
+pkarr = { version = "1.1.3", default-features = false, features = ["async", "relay"] }
 postcard = { version = "1", default-features = false, features = ["alloc", "use-std", "experimental-derive"] }
 quinn = "0.10"
 quinn-proto = "0.10.5"
@@ -65,12 +68,12 @@ tokio-rustls = { version = "0.24" }
 tokio-rustls-acme = { version = "0.2" }
 tokio-util = { version = "0.7", features = ["io-util", "io", "codec"] }
 tracing = "0.1"
-hickory-resolver = "0.24.0"
 url = { version = "2.4", features = ["serde"] }
 watchable = "1.1.2"
 webpki = { package = "rustls-webpki", version = "0.101.4", features = ["std"] }
 webpki-roots = "0.25"
 x509-parser = "0.15"
+z32 = "1.0.3"
 
 # iroh-relay
 clap = { version = "4", features = ["derive"], optional = true }
@@ -106,6 +109,7 @@ tokio = { version = "1", features = ["io-util", "sync", "rt", "net", "fs", "macr
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 iroh-test = { path = "../iroh-test" }
 serde_json = "1.0.107"
+axum = "0.7.4"
 
 [[bench]]
 name = "key"