Add CHELA_USES_HTTPS as an option

Cargo.lock

@@ -215,7 +215,7 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "chela"
-version = "1.3.0"
+version = "1.4.0"
 dependencies = [
  "axum",
  "chrono",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "chela"
-version = "1.3.0"
+version = "1.4.0"
 edition = "2021"
 license = "BSL-1.0"
 

README.md

@@ -71,6 +71,9 @@ If you would like Chela to listen for HTTP requests over a Unix socket, set this
 ##### `CHELA_ALPHABET`
 If this variable is set, Chela will use the characters in `CHELA_ALPHABET` to create IDs for URLs. The default alphabet is `abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ`. See [here](https://sqids.org/faq#unique) for more information on Sqids alphabets.
 
+##### `CHELA_USES_HTTPS`
+If this variable is set, Chela will refer to itself as `https://$CHELA_HOST` instead of the default `http://$CHELA_HOST`.
+
 ### Manually
 #### Build
 ```bash
@@ -94,7 +97,7 @@ If you would prefer to be the only one able to access these pages, then you can
 
 ```nginx
 server {
-    server_name example.com;
+    server_name a.com;
     
     location / {
         proxy_pass http://localhost:3000;
@@ -108,7 +111,6 @@ server {
 
     location /tracking {
         proxy_pass http://localhost:3000$request_uri;
-        proxy_set_header X-Real-IP $remote_addr;
 
         auth_basic 'Restricted';
         auth_basic_user_file /path/to/your/.htpasswd;

src/main.rs

@@ -29,6 +29,7 @@ pub struct ServerState {
     pub sqids: Sqids,
     pub main_page_redirect: Option<Url>,
     pub behind_proxy: bool,
+    pub uses_https: bool,
 }
 
 #[derive(Debug, Clone, sqlx::FromRow, PartialEq, Eq)]
@@ -87,12 +88,14 @@ async fn main() -> eyre::Result<()> {
         .build()?;
     let main_page_redirect = env::var("CHELA_MAIN_PAGE_REDIRECT").unwrap_or_default();
     let behind_proxy = env::var("CHELA_BEHIND_PROXY").is_ok();
+    let uses_https = env::var("CHELA_USES_HTTPS").is_ok();
     let server_state = ServerState {
         db_pool,
         host,
         sqids,
         main_page_redirect: Url::parse(&main_page_redirect).ok(),
         behind_proxy,
+        uses_https
     };
 
     serve(server_state).await?;

src/post.rs

@@ -32,7 +32,8 @@ pub async fn create_link(
         if id.exists {
             log!("Serving cached id {} -> {}", id.id, form.url.as_str());
             return Html(format!(
-                r#"<pre>http://{}/{} -> <a href="{}"">{}</a></pre>"#,
+                r#"<pre>http{}://{}/{} -> <a href="{}"">{}</a></pre>"#,
+                if state.uses_https { "s" } else { "" },
                 state.host,
                 id.id,
                 form.url.as_str(),
@@ -72,7 +73,8 @@ VALUES ($1,$2,true)
                 return (
                     StatusCode::OK,
                     Html(format!(
-                        r#"<pre>http://{}/{} -> <a href="{}"">{}</a></pre>"#,
+                        r#"<pre>http{}://{}/{} -> <a href="{}"">{}</a></pre>"#,
+                        if state.uses_https { "s" } else { "" },
                         state.host,
                         id.id,
                         form.url.as_str(),