feat(libs): add support for any origin in case of cors wildcard (#985)

* feat: add support any origin in case of wildcard

* chore: change default to `false`

* chore: change default to `true`

* chore: add option to write vector without space after comma

libs/blockscout-service-launcher/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "blockscout-service-launcher"
-version = "0.12.1"
+version = "0.13.0"
 description = "Allows to launch blazingly fast blockscout rust services"
 license = "MIT"
 repository = "https://github.com/blockscout/blockscout-rs"

libs/blockscout-service-launcher/src/launcher/settings.rs

@@ -72,6 +72,7 @@ pub struct CorsSettings {
     pub allowed_credentials: bool,
     pub max_age: usize,
     pub block_on_origin_mismatch: bool,
+    pub send_wildcard: bool,
 }
 
 impl Default for CorsSettings {
@@ -83,23 +84,35 @@ impl Default for CorsSettings {
             allowed_credentials: true,
             max_age: 3600,
             block_on_origin_mismatch: false,
+            send_wildcard: false,
         }
     }
 }
 
 impl CorsSettings {
     pub fn build(self) -> Cors {
+        if !self.enabled {
+            return Cors::default();
+        }
         let mut cors = Cors::default()
             .allow_any_header()
-            .allowed_methods(self.allowed_methods.split(", "))
+            .allowed_methods(split_string(&self.allowed_methods))
             .max_age(Some(self.max_age))
             .block_on_origin_mismatch(self.block_on_origin_mismatch);
         if self.allowed_credentials {
             cors = cors.supports_credentials()
         }
-        for origin in self.allowed_origin.split(", ") {
-            cors = cors.allowed_origin(origin)
+        if self.send_wildcard {
+            cors = cors.send_wildcard()
         }
+        match self.allowed_origin.as_str() {
+            "*" => cors = cors.allow_any_origin(),
+            allowed_origin => {
+                for origin in split_string(allowed_origin) {
+                    cors = cors.allowed_origin(origin)
+                }
+            }
+        };
         cors
     }
 }
@@ -137,3 +150,7 @@ impl Default for MetricsSettings {
         }
     }
 }
+
+fn split_string(s: &str) -> Vec<&str> {
+    s.split(',').map(|s| s.trim()).collect()
+}