First commit

.gitignore

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+/target
+*pem

Cargo.toml

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+[package]
+name = "lwa_simple_server"
+version = "0.1.0"
+authors = ["Mev Lyshkin <mev_lyshkin@protonmail.com>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[profile.release]
+opt-level = 'z'
+panic = 'abort'
+lto = true
+
+[profile.dev.package."*"]
+opt-level = 2
+
+[dependencies]
+actix-web = { version = "~3", features = ["openssl"] }
+openssl = { version = "0.10" }
+actix-files = "^0.5.0"
+actix-cors = "^0.5.4"
+env_logger = "^0.8.3"
+confy = "^0.4.0"
+serde = "^1.0"
+serde_derive = "^1.0"

src/config.rs

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+#[derive(Debug, Serialize, Deserialize, Clone)]
+pub struct ServerConfig {
+    pub folder_to_host: String,
+    pub bind_address: String,
+    pub private_key_file: String,
+    pub certificate_chain_file: String,
+    pub use_ssl: bool
+}
+
+impl Default for ServerConfig {
+    fn default() -> Self {
+        Self {
+            folder_to_host: String::from(std::env::current_dir().unwrap().to_str().unwrap()),
+            bind_address: "localhost:8000".to_string(),
+            private_key_file: "key.pem".to_string(),
+            certificate_chain_file: "cert.pem".to_string(),
+            use_ssl: false,
+        }
+    }
+}

src/main.rs

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+#[macro_use]
+extern crate serde_derive;
+extern crate confy;
+use actix_cors::Cors;
+use actix_files as fs;
+use actix_web::{middleware, App, HttpServer};
+use openssl::ssl::{SslAcceptor, SslFiletype, SslMethod};
+use std::env;
+
+mod config;
+
+#[actix_web::main]
+async fn main() -> std::io::Result<()> {
+    env::set_var("RUST_LOG", "actix_web=debug,actix_server=info");
+    env_logger::init();
+    let cfg: config::ServerConfig = confy::load("lwa_simple_server").unwrap();
+    {
+        println!("The configuration is:\n{:#?}", cfg);
+        // `openssl req -x509 -newkey rsa:4096 -nodes -keyout key.pem -out cert.pem -days 365 -subj '/CN=localhost'`
+
+        println!(
+            "Starting server on address: {} with hosted folder: {} wit SSL: {}",
+            cfg.bind_address, cfg.folder_to_host, cfg.use_ssl
+        );
+    }
+
+    let server = HttpServer::new(move || {
+        let cfg: config::ServerConfig = confy::load("lwa_simple_server").unwrap();
+        App::new()
+            .wrap(middleware::Logger::default())
+            .wrap(Cors::default())
+            .service(fs::Files::new("/", &cfg.folder_to_host).index_file("index.html"))
+    });
+
+    if cfg.use_ssl {
+        let mut builder = SslAcceptor::mozilla_intermediate(SslMethod::tls()).unwrap();
+        builder
+            .set_private_key_file(&cfg.private_key_file, SslFiletype::PEM)
+            .unwrap();
+        builder.set_certificate_chain_file(&cfg.certificate_chain_file).unwrap();
+
+        server.bind_openssl(&cfg.bind_address, builder)?
+        .run()
+        .await
+    } else {
+        server.bind(&cfg.bind_address)?
+        .run()
+        .await
+    }
+}