trust-dns-resolver requires explicit enables feature dns-over-https-rustls

fix #367

Cargo.lock

@@ -2058,6 +2058,29 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "efd1f82c56340fdf16f2a953d7bda4f8fdffba13d93b00844c25572110b26079"
 
+[[package]]
+name = "trust-dns-https"
+version = "0.20.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2663f69cd36a5e99a93825d1f3aff834de2bb3cca2989316f3c9504a63a0c0a5"
+dependencies = [
+ "bytes 1.0.0",
+ "cfg-if 1.0.0",
+ "data-encoding",
+ "futures-util",
+ "h2",
+ "http",
+ "log",
+ "rustls",
+ "thiserror",
+ "tokio 1.0.1",
+ "tokio-rustls",
+ "trust-dns-proto",
+ "trust-dns-rustls",
+ "webpki",
+ "webpki-roots",
+]
+
 [[package]]
 name = "trust-dns-proto"
 version = "0.20.0"
@@ -2103,6 +2126,7 @@ dependencies = [
  "thiserror",
  "tokio 1.0.1",
  "tokio-rustls",
+ "trust-dns-https",
  "trust-dns-proto",
  "trust-dns-rustls",
  "webpki-roots",

crates/shadowsocks-service/Cargo.toml

@@ -37,7 +37,7 @@ manager = ["server"]
 # Enables trust-dns for replacing tokio's builtin DNS resolver
 trust-dns = ["trust-dns-resolver", "shadowsocks/trust-dns"]
 dns-over-tls = ["trust-dns", "trust-dns-resolver/dns-over-tls", "trust-dns-resolver/dns-over-rustls"]
-dns-over-https = ["trust-dns", "trust-dns-resolver/dns-over-https"]
+dns-over-https = ["trust-dns", "trust-dns-resolver/dns-over-https", "trust-dns-resolver/dns-over-https-rustls"]
 
 # Enable DNS-relay
 local-dns = ["local", "trust-dns", "rand"]

crates/shadowsocks-service/src/config.rs

@@ -1009,7 +1009,7 @@ impl Config {
                                     protocol: Protocol::Udp,
                                     tls_dns_name: None,
                                     trust_nx_responses: false,
-                                    #[cfg(feature = "dns-over-tls")]
+                                    #[cfg(any(feature = "dns-over-tls", feature = "dns-over-https"))]
                                     tls_config: None,
                                 });
                                 c.add_name_server(NameServerConfig {
@@ -1017,7 +1017,7 @@ impl Config {
                                     protocol: Protocol::Tcp,
                                     tls_dns_name: None,
                                     trust_nx_responses: false,
-                                    #[cfg(feature = "dns-over-tls")]
+                                    #[cfg(any(feature = "dns-over-tls", feature = "dns-over-https"))]
                                     tls_config: None,
                                 });
                             }