Use public URL instead of URL in configuration

Change the name of the `url` config key to `public_url` to be more clear
about what it is for.

README.md

@@ -25,7 +25,7 @@ builds when you don't add `--release`.)
 ### Configuration
 
 For now, you will need to provide Rocket with configuration to tell it at which
-URL Podbringer is hosted. This needs to be done even if you are not using a
+public URL Podbringer is hosted. This needs to be done even if you are not using a
 reverse proxy, in which case you need to provide it with the proxied URL. You
 can also use the configuration to configure a different address and/or port.
 Just create a `Rocket.toml` file that contains (or copy `Rocket.toml.example`):
@@ -34,7 +34,7 @@ Just create a `Rocket.toml` file that contains (or copy `Rocket.toml.example`):
 [default]
 address = "0.0.0.0"
 port = 7062
-url = "https://my.domain.tld/podbringer"
+public_url = "https://my.domain.tld/podbringer"
 ```
 
 This will work independent of the type of build. For more about Rocket's
@@ -52,7 +52,7 @@ need to use for Podbringer is comprised of the following parts:
 ```text
   https://my.domain.tld/podbringer/feed/mixcloud/myfavouriteband
   |------------------------------|     |-------||--------------|
-   The Podbringer location URL          Service  User @ service
+   The Podbringer public URL            Service  User @ service
 ```
 
 ### Feed item limit

Rocket.toml.example

@@ -1,4 +1,4 @@
 [default]
 address = "0.0.0.0"
 port = 7062
-url = "https://my.domain.tld/podbringer"
+public_url = "https://my.domain.tld/podbringer"

src/feed.rs

@@ -92,7 +92,7 @@ fn construct_item(
         })
         .collect::<Vec<_>>();
     let url = uri!(
-        Absolute::parse(&config.url).expect("valid URL"),
+        Absolute::parse(&config.public_url).expect("valid URL"),
         crate::get_download(backend_id = backend_id, file = item.enclosure.file)
     );
     let enclosure = EnclosureBuilder::default()

src/lib.rs

@@ -69,9 +69,9 @@ pub(crate) type Result<T, E = Error> = std::result::Result<T, E>;
 #[derive(Debug, Deserialize, Serialize)]
 #[serde(crate = "rocket::serde")]
 pub(crate) struct Config {
-    /// The URL at which the application is hosted or proxied from.
+    /// The public URL at which the application is hosted or proxied from.
     #[serde(default)]
-    url: String,
+    public_url: String,
 }
 
 /// A Rocket responder wrapper type for RSS feeds.
@@ -107,7 +107,7 @@ async fn get_feed(
 /// Returns a simple index page that explains the usage.
 #[get("/")]
 pub(crate) async fn get_index(config: &State<Config>) -> Template {
-    Template::render("index", context! { url: &config.url })
+    Template::render("index", context! { url: &config.public_url })
 }
 
 /// Sets up Rocket.

templates/index.html.tera

@@ -11,7 +11,7 @@
   <pre>
     https://my.domain.tld/podbringer/feed/mixcloud/myfavouriteband
     |------------------------------|     |-------||--------------|
-     The Podbringer location URL          Service  User @ service
+     The Podbringer public URL            Service  User @ service
   </pre>
 </p>
 <p>