Fix desktop to support this

desktop/src-tauri/Cargo.lock

@@ -68,6 +68,15 @@ version = "1.0.86"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b3d1d046238990b9cf5bcde22a3fb3584ee5cf65fb2765f454ed428c7a0063da"
 
+[[package]]
+name = "assert_cfg"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "04e2651f366b7ee3f97729fded1441539b49d5f39eeb05b842689e11e84501b2"
+dependencies = [
+ "const_panic",
+]
+
 [[package]]
 name = "async-stream"
 version = "0.3.5"
@@ -498,6 +507,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "const_panic"
+version = "0.2.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7782af8f90fe69a4bb41e460abe1727d493403d8b2cc43201a3a3e906b24379f"
+
 [[package]]
 name = "convert_case"
 version = "0.4.0"
@@ -1916,6 +1931,7 @@ name = "librqbit-core"
 version = "4.0.1"
 dependencies = [
  "anyhow",
+ "assert_cfg",
  "bytes",
  "data-encoding",
  "directories",
@@ -1980,6 +1996,7 @@ dependencies = [
 name = "librqbit-sha1-wrapper"
 version = "4.0.0"
 dependencies = [
+ "assert_cfg",
  "crypto-hash",
 ]
 
@@ -2034,6 +2051,7 @@ dependencies = [
  "librqbit-sha1-wrapper",
  "librqbit-upnp",
  "mime_guess",
+ "network-interface",
  "parking_lot",
  "quick-xml 0.36.1",
  "reqwest",
@@ -3051,6 +3069,7 @@ dependencies = [
  "anyhow",
  "base64 0.22.1",
  "directories",
+ "gethostname",
  "http 1.1.0",
  "librqbit",
  "parking_lot",

desktop/src-tauri/Cargo.toml

@@ -31,6 +31,7 @@ tracing-subscriber = { version = "0.3.18", features = ["env-filter", "json"] }
 tracing = "0.1"
 serde_with = "3.4.0"
 parking_lot = "0.12.1"
+gethostname = "0.5.0"
 
 [features]
 # this feature is used for production builds or when `devPath` points to the filesystem

desktop/src-tauri/src/config.rs

@@ -135,9 +135,6 @@ pub struct RqbitDesktopConfigUpnp {
     #[serde(default)]
     pub enable_server: bool,
 
-    #[serde(default)]
-    pub server_hostname: Option<String>,
-
     #[serde(default)]
     pub server_friendly_name: Option<String>,
 }
@@ -183,12 +180,6 @@ impl RqbitDesktopConfig {
             if self.http_api.listen_addr.ip().is_loopback() {
                 anyhow::bail!("if UPnP server is enabled, you need to set HTTP API IP to 0.0.0.0 or at least non-localhost address.")
             }
-            match self.upnp.server_hostname.as_ref().map(|s| s.trim()) {
-                Some("") | None => {
-                    anyhow::bail!("UPnP hostname must be set to non-empty string")
-                }
-                Some(_) => {}
-            }
         }
         Ok(())
     }

desktop/src-tauri/src/main.rs

@@ -122,13 +122,6 @@ async fn api_from_config(
         let api = api.clone();
         let read_only = config.http_api.read_only;
         let upnp_router = if config.upnp.enable_server {
-            let hostname = config
-                .upnp
-                .server_hostname
-                .as_ref()
-                .map(|h| h.trim())
-                .context("empty UPNP hostname")?
-                .to_owned();
             let friendly_name = config
                 .upnp
                 .server_friendly_name
@@ -136,10 +129,15 @@ async fn api_from_config(
                 .map(|f| f.trim())
                 .filter(|s| !s.is_empty())
                 .map(|s| s.to_owned())
-                .unwrap_or_else(|| format!("rqbit@{hostname}"));
+                .unwrap_or_else(|| {
+                    format!(
+                        "rqbit-desktop@{}",
+                        gethostname::gethostname().to_string_lossy()
+                    )
+                });
 
             let mut upnp_adapter = session
-                .make_upnp_adapter(friendly_name, hostname, config.http_api.listen_addr.port())
+                .make_upnp_adapter(friendly_name, config.http_api.listen_addr.port())
                 .await
                 .context("error starting UPnP server")?;
             let router = upnp_adapter.take_router()?;

desktop/src/configuration.tsx

@@ -36,7 +36,6 @@ interface RqbitDesktopConfigUpnp {
   disable: boolean;
 
   enable_server: boolean;
-  server_hostname: string;
   server_friendly_name: string;
 }
 

desktop/src/configure.tsx

@@ -293,16 +293,6 @@ export const ConfigModal: React.FC<{
               help="If enabled, rqbit will advertise the media to supported LAN devices, e.g. TVs."
             />
 
-            <FormInput
-              inputType="text"
-              label="[Required] Hostname"
-              name="upnp.server_hostname"
-              value={config.upnp.server_hostname}
-              disabled={!config.upnp.enable_server}
-              onChange={handleInputChange}
-              help="Set this to your LAN IP or hostname resolvable from LAN."
-            />
-
             <FormInput
               inputType="text"
               label="Friendly name"