add proxy_configs.toml (unread currently)

Cargo.lock

@@ -445,12 +445,30 @@ dependencies = [
  "winapi 0.3.9",
 ]
 
+[[package]]
+name = "proc-macro2"
+version = "1.0.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "beae6331a816b1f65d04c45b078fd8e6c93e8071771f41b8163255bbd8d7c8fa"
+dependencies = [
+ "unicode-xid",
+]
+
 [[package]]
 name = "quick-error"
 version = "1.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a1d01941d82fa2ab50be1e79e6714289dd7cde78eba4c074bc5a4374f650dfe0"
 
+[[package]]
+name = "quote"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa563d17ecb180e500da1cfd2b028310ac758de548efdd203e18f283af693f37"
+dependencies = [
+ "proc-macro2",
+]
+
 [[package]]
 name = "redox_syscall"
 version = "0.1.56"
@@ -505,6 +523,23 @@ version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
 
+[[package]]
+name = "serde"
+version = "1.0.114"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5317f7588f0a5078ee60ef675ef96735a1442132dc645eb1d12c018620ed8cd3"
+
+[[package]]
+name = "serde_derive"
+version = "1.0.114"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2a0be94b04690fbaed37cddffc5c134bf537c8e3329d53e982fe04c374978f8e"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "slab"
 version = "0.4.2"
@@ -529,6 +564,17 @@ dependencies = [
  "bytes",
 ]
 
+[[package]]
+name = "syn"
+version = "1.0.33"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e8d5d96e8cbb005d6959f119f773bfaebb5684296108fb32600c00cde305b2cd"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-xid",
+]
+
 [[package]]
 name = "termcolor"
 version = "1.1.0"
@@ -689,6 +735,15 @@ dependencies = [
  "tokio-executor",
 ]
 
+[[package]]
+name = "toml"
+version = "0.5.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ffc92d160b1eef40665be3a05630d003936a3bc7da7421277846c2613e92c71a"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "try-lock"
 version = "0.2.2"
@@ -705,6 +760,9 @@ dependencies = [
  "hyper",
  "hyper-reverse-proxy",
  "log",
+ "serde",
+ "serde_derive",
+ "toml",
 ]
 
 [[package]]
@@ -716,6 +774,12 @@ dependencies = [
  "version_check",
 ]
 
+[[package]]
+name = "unicode-xid"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
+
 [[package]]
 name = "version_check"
 version = "0.9.2"

Cargo.toml

@@ -16,8 +16,9 @@ path = "src/main.rs"
 anyhow = "1.0.31"
 env_logger = "0.7.1"
 futures = "0.1"
-#hyper = "0.13.6"
 hyper = "0.12"
 hyper-reverse-proxy = "0.4"
 log = "0.4.8"
-#simple_proxy = "1.3.1"
+serde = "1.0.104"
+serde_derive = "1.0.104"
+toml = "0.5.6"

proxy_configs.toml

@@ -0,0 +1,9 @@
+[[backends]]
+voice = "foo"
+ip = "127.0.0.1"
+port = "12345"
+
+[[backends]]
+voice = "bar"
+ip = "1.1.1.1"
+port = "12345"

src/main.rs

@@ -1,4 +1,5 @@
 #[macro_use] extern crate log;
+#[macro_use] extern crate serde_derive;
 
 
 /*#[derive(Deserialize)]
@@ -13,15 +14,40 @@ use futures::future::{self, Future};
 use hyper::server::conn::AddrStream;
 use hyper::service::{service_fn, make_service_fn};
 use hyper::{Body, Request, Response, Server};
+use anyhow::Result as AnyhowResult;
 use std::env;
 
 type BoxFut = Box<Future<Item=Response<Body>, Error=hyper::Error> + Send>;
 
+const ENV_PROXY_CONFIG_FILE : &'static str = "PROXY_CONFIG_FILE";
 const ENV_ROUTE_ONE : &'static str = "ROUTE_ONE";
 const ENV_ROUTE_TWO : &'static str = "ROUTE_TWO";
+const ENV_RUST_LOG : &'static str = "RUST_LOG";
 
 const ROUTE_ONE_DEFAULT : &'static str = "http://127.0.0.1:12345";
 const ROUTE_TWO_DEFAULT : &'static str = "http://127.0.0.1:3000";
+const DEFAULT_PROXY_CONFIG_FILE : &'static str = "proxy_configs.toml";
+const DEFAULT_RUST_LOG: &'static str = "debug";
+
+#[derive(Deserialize, Debug, Clone)]
+struct ProxyConfigs {
+  pub backends: Vec<ProxyConfig>,
+}
+
+#[derive(Deserialize, Debug, Clone)]
+struct ProxyConfig {
+  pub voice : String,
+  pub ip: String,
+  pub port: String,
+}
+
+impl ProxyConfigs {
+  pub fn load_from_file(filename: &str) -> AnyhowResult<Self> {
+    let contents = std::fs::read_to_string(filename)?;
+    let configs = toml::from_str(&contents)?;
+    Ok(configs)
+  }
+}
 
 fn get_env_string(env_name: &str, default: &str) -> String {
   match env::var(env_name).as_ref().ok() {
@@ -39,13 +65,31 @@ fn debug_request(req: Request<Body>) -> BoxFut {
   Box::new(future::ok(response))
 }
 
-fn main() {
+fn main() -> AnyhowResult<()> {
+  if env::var(ENV_RUST_LOG)
+    .as_ref()
+    .ok()
+    .is_none()
+  {
+    println!("Setting default logging level to \"{}\", override with env var {}.",
+             DEFAULT_RUST_LOG, ENV_RUST_LOG);
+    std::env::set_var(ENV_RUST_LOG, DEFAULT_RUST_LOG);
+  }
+
+  env_logger::init();
+
   let route_one = get_env_string(ENV_ROUTE_ONE, ROUTE_ONE_DEFAULT);
   let route_two = get_env_string(ENV_ROUTE_TWO, ROUTE_TWO_DEFAULT);
 
   info!("Route one: {}", route_one);
   info!("Route two: {}", route_two);
 
+  let proxy_configs_file = get_env_string(ENV_PROXY_CONFIG_FILE, DEFAULT_PROXY_CONFIG_FILE);
+  info!("Proxy config file: {}", proxy_configs_file);
+
+  let proxy_configs = ProxyConfigs::load_from_file(&proxy_configs_file)?;
+  info!("Proxy configs: {:?}", proxy_configs);
+
   // This is our socket address...
   let addr = ([127, 0, 0, 1], 13900).into();
 
@@ -77,4 +121,6 @@ fn main() {
 
   // Run this server for... forever!
   hyper::rt::run(server);
+
+  Ok(())
 }