README.md

@@ -133,11 +133,9 @@ the `slug_length` variable. It defaults to 8, and a minimum of 4 is supported.
 To enable public mode, set `public_mode` to `Enable`. With this, anyone will be able to add 
 links. Listing existing links or deleting links will need admin access using the password.
 
-By default, the server sends no Cache-Control headers. You can set custom `cache_control_header` 
+By default, the server sends `no-cache` and `private` Cache-Control headers. To disable those,
-to send your desired headers. It must be a comma separated list of valid 
+set `cache_control_header` to `Disable`. It might help boost performance if served through a 
-[RFC 7234 §5.2](https://datatracker.ietf.org/doc/html/rfc7234#section-5.2) headers. For example,
+proxy.
-you can set it to `no-cache, private` to disable caching. It might help during testing if
-served through a proxy.
 
 ## Instructions for CLI usage
 The application can be used from the terminal using something like `curl`. In all the examples
@@ -181,6 +179,6 @@ pointing to illegal content. Since there are no logs, it's impossible to prove
 that those links aren't created by you.
 
 ## Notes
-- It started as a fork of [`simply-shorten`](https://gitlab.com/draganczukp/simply-shorten).
+- It started as a fork of [this project](https://gitlab.com/draganczukp/simply-shorten).
 - The list of adjectives and names used for random short url generation is a modified
   version of [this list used by docker](https://github.com/moby/moby/blob/master/pkg/namesgenerator/names-generator.go).

actix/Cargo.lock

@@ -468,7 +468,7 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "chhoto-url"
-version = "5.4.0"
+version = "5.3.1"
 dependencies = [
  "actix-files",
  "actix-session",
@@ -1401,9 +1401,9 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
 
 [[package]]
 name = "tokio"
-version = "1.38.0"
+version = "1.37.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ba4f4a02a7a80d6f274636f0aa95c7e383b912d41fe721a31f29e29698585a4a"
+checksum = "1adbebffeca75fcfd058afa480fb6c0b81e165a0323f9c9d39c9697e37c46787"
 dependencies = [
  "backtrace",
  "bytes",

actix/Cargo.toml

@@ -3,7 +3,7 @@
 
 [package]
 name = "chhoto-url"
-version = "5.4.0"
+version = "5.3.1"
 edition = "2021"
 authors = ["Sayantan Santra <sayantan[dot]santra689[at]gmail[dot]com"]
 license = "mit"

actix/src/main.rs

@@ -36,7 +36,8 @@ async fn main() -> Result<()> {
 
     let cache_control_header = env::var("cache_control_header")
         .ok()
-        .filter(|s| !s.trim().is_empty());
+        .filter(|s| !s.trim().is_empty())
+        .unwrap_or(String::from("Enable"));
 
     // Actually start the server
     HttpServer::new(move || {
@@ -53,10 +54,10 @@ async fn main() -> Result<()> {
             .app_data(web::Data::new(AppState {
                 db: database::open_db(db_location.clone()),
             }))
-            .wrap(if let Some(header) = &cache_control_header {
+            .wrap(if cache_control_header == "Disable" {
-                middleware::DefaultHeaders::new().add(("Cache-Control", header.to_owned()))
-            } else {
                 middleware::DefaultHeaders::new()
+            } else {
+                middleware::DefaultHeaders::new().add(("Cache-Control", "no-cache, private"))
             })
             .service(services::link_handler)
             .service(services::getall)

compose.yaml

@@ -36,10 +36,9 @@ services:
             # delete, or listing), change the following option to Enable.
             # - public_mode=Disable
             
-            # By default, the server sends no Cache-Control headers. You can supply a 
+            # By default, the server sends `no-cache` and `private` Cache-Control
-            # comma separated list of valid header as per RFC 7234 §5.2 to send those
+            # headers. To disable those, change the following option to Disable.
-            # headers instead.
+            # - cache_control_header=Enable
-            # - cache_control_header=no-cache, private
         volumes:
             - db:/urls.sqlite
         networks: