Refactoring repository structure and building basic nix module

7 files changed, 1088 insertions, 0 deletions

diff --git a/metrics/.gitignore b/metrics/.gitignore
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diff --git a/metrics/Cargo.lock b/metrics/Cargo.lock
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+checksum = "6db9e6914ab8b1ae1c260a4ae7a49b6c5611b40328a735b21862567685e73255"
+dependencies = [
+ "libc",
+ "wasi 0.10.0+wasi-snapshot-preview1",
+ "winapi 0.3.9",
+]
+
+[[package]]
+name = "tokio"
+version = "0.2.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5d34ca54d84bf2b5b4d7d31e901a8464f7b60ac145a284fba25ceb801f2ddccd"
+dependencies = [
+ "bytes",
+ "fnv",
+ "futures-core",
+ "iovec",
+ "lazy_static",
+ "libc",
+ "memchr",
+ "mio",
+ "mio-named-pipes",
+ "mio-uds",
+ "num_cpus",
+ "pin-project-lite",
+ "signal-hook-registry",
+ "slab",
+ "tokio-macros",
+ "winapi 0.3.9",
+]
+
+[[package]]
+name = "tokio-macros"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0c3acc6aa564495a0f2e1d59fab677cd7f81a19994cfc7f3ad0e64301560389"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "tokio-util"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "be8242891f2b6cbef26a2d7e8605133c2c554cd35b3e4948ea892d6d68436499"
+dependencies = [
+ "bytes",
+ "futures-core",
+ "futures-sink",
+ "log",
+ "pin-project-lite",
+ "tokio",
+]
+
+[[package]]
+name = "tower-service"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e987b6bf443f4b5b3b6f38704195592cca41c5bb7aedd3c3693c7081f8289860"
+
+[[package]]
+name = "tracing"
+version = "0.1.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b0987850db3733619253fe60e17cb59b82d37c7e6c0236bb81e4d6b87c879f27"
+dependencies = [
+ "cfg-if",
+ "log",
+ "pin-project-lite",
+ "tracing-core",
+]
+
+[[package]]
+name = "tracing-core"
+version = "0.1.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f50de3927f93d202783f4513cda820ab47ef17f624b03c096e86ef00c67e6b5f"
+dependencies = [
+ "lazy_static",
+]
+
+[[package]]
+name = "tracing-futures"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ab7bb6f14721aa00656086e9335d363c5c8747bae02ebe32ea2c7dece5689b4c"
+dependencies = [
+ "pin-project 0.4.27",
+ "tracing",
+]
+
+[[package]]
+name = "try-lock"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "59547bce71d9c38b83d9c0e92b6066c4253371f15005def0c30d9657f50c7642"
+
+[[package]]
+name = "unicode-xid"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
+
+[[package]]
+name = "want"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1ce8a968cb1cd110d136ff8b819a556d6fb6d919363c61534f6860c7eb172ba0"
+dependencies = [
+ "log",
+ "try-lock",
+]
+
+[[package]]
+name = "wasi"
+version = "0.9.0+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
+
+[[package]]
+name = "wasi"
+version = "0.10.0+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a143597ca7c7793eff794def352d41792a93c481eb1042423ff7ff72ba2c31f"
+
+[[package]]
+name = "winapi"
+version = "0.2.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
+
+[[package]]
+name = "winapi"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
+dependencies = [
+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
+[[package]]
+name = "winapi-build"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
+
+[[package]]
+name = "winapi-i686-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+
+[[package]]
+name = "winapi-x86_64-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+
+[[package]]
+name = "ws2_32-sys"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d59cefebd0c892fa2dd6de581e937301d8552cb44489cdff035c6187cb63fa5e"
+dependencies = [
+ "winapi 0.2.8",
+ "winapi-build",
+]
diff --git a/metrics/Cargo.toml b/metrics/Cargo.toml
new file mode 100644
index 0000000..93ea887
--- /dev/null
+++ b/metrics/Cargo.toml
@@ -0,0 +1,16 @@
+[package]
+name = "brook-metrics"
+description = "A server to handle brook metric reporting"
+version = "0.1.0"
+authors = ["Mx Kookie <kookie@spacekookie.de>"]
+edition = "2018"
+
+[dependencies]
+ratman-identity = { version = "0.5", features = ["random"] }
+chrono = "0.4"
+hyper = "0.13"
+json = "0.12"
+lazy_static = "1.0"
+
+#TODO: remove this when async-h2 comes out
+tokio = { version = "0.2", features = ["full"] }
\ No newline at end of file
diff --git a/metrics/build b/metrics/build
new file mode 100644
index 0000000..67e8e8a
--- /dev/null
+++ b/metrics/build
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+nix-shell --run "cargo build"
\ No newline at end of file
diff --git a/metrics/metrics.csv b/metrics/metrics.csv
new file mode 100644
index 0000000..7a323b2
--- /dev/null
+++ b/metrics/metrics.csv
@@ -0,0 +1,141 @@
+2020-10-30_04:26:57 UTC,0
+2020-10-30_04:27:12 UTC,2
+2020-10-30_04:27:27 UTC,2
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diff --git a/metrics/shell.nix b/metrics/shell.nix
new file mode 100644
index 0000000..2fa04ad
--- /dev/null
+++ b/metrics/shell.nix
@@ -0,0 +1,6 @@
+with import <nixpkgs> {};
+
+stdenv.mkDerivation {
+  name = "brook-metrics";
+  buildInputs = with pkgs; [ rustup clangStdenv ];
+}
diff --git a/metrics/src/main.rs b/metrics/src/main.rs
new file mode 100644
index 0000000..af489dd
--- /dev/null
+++ b/metrics/src/main.rs
@@ -0,0 +1,154 @@
+use chrono::Utc;
+use hyper::{
+    service::{make_service_fn, service_fn},
+    Body, Method, Request, Response, Server, StatusCode,
+};
+use lazy_static::lazy_static;
+use ratman_identity::Identity;
+use std::{
+    collections::BTreeMap,
+    convert::Infallible,
+    env,
+    fs::OpenOptions,
+    io::Write,
+    net::SocketAddr,
+    path::PathBuf,
+    sync::{
+        atomic::{AtomicUsize, Ordering},
+        Mutex,
+    },
+    thread,
+    time::Duration,
+};
+
+lazy_static! {
+    static ref STATE: Mutex<BTreeMap<Identity, MetricEntry>> = Mutex::new(BTreeMap::new());
+}
+
+/// An entry of metrics data
+#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
+struct MetricEntry {}
+
+fn dump_metrics() {
+    let p = env::var("BROOK_METRICS_PATH").unwrap_or("metrics.csv".into());
+    let path = PathBuf::new().join(p);
+
+    loop {
+        let time = Utc::now();
+        let mut map = STATE.lock().unwrap();
+        let metrics: Vec<()> = map.iter().map(|_| ()).collect();
+        map.clear();
+        drop(map);
+
+        let line = format!(
+            "{},{}\n",
+            time.format("%Y-%m-%d_%H:%M:%S UTC"),
+            metrics.len(),
+        );
+        let mut file = OpenOptions::new()
+            .write(true)
+            .append(true)
+            .create(true)
+            .open(&path)
+            .unwrap();
+
+        file.write_all(line.as_bytes()).unwrap();
+
+        // Wait for a while before doing it again
+        thread::sleep(Duration::from_secs(15));
+    }
+}
+
+fn get() -> Result<Response<Body>, Infallible> {
+    let mut resp = Response::new(Body::empty());
+    *resp.body_mut() = Body::from(
+        "<!DOCTYPE html>
+<html>
+<head><title>brook-metrics</title></head>
+<body>
+<p>
+Your brook-metrics server is now reachable!  \
+Point your brook clients towards $ADDR/report
+</p>
+</body>
+</html>",
+    );
+
+    Ok(resp)
+}
+
+async fn post(req: Request<Body>) -> Result<Response<Body>, Infallible> {
+    let full_body = hyper::body::to_bytes(req.into_body()).await.unwrap();
+    let body_str = String::from_utf8(full_body.to_vec()).unwrap();
+
+    let parsed = json::parse(&body_str).unwrap();
+
+    // Either get the ID or create a new one
+    let id = match parsed {
+        json::JsonValue::Object(mut obj) => obj.remove("id"),
+        _ => unreachable!(),
+    }
+    .map(|jv| match jv {
+        json::JsonValue::String(ref s) => Identity::from_string(s),
+        _ => unreachable!(),
+    })
+    .map(|id| {
+        eprintln!("[DEBUG] Returning client {}", id);
+        id
+    })
+    .unwrap_or_else(|| {
+        eprintln!("[DEBUG] Adding new stream client!");
+        Identity::random()
+    });
+
+    STATE.lock().unwrap().insert(id, MetricEntry {});
+
+    Ok(Response::builder()
+        .header("Content-Type", "text/json")
+        .status(StatusCode::OK)
+        .body(Body::from(format!("{{ \"id\": \"{}\" }}", id.to_string())))
+        .unwrap())
+}
+
+fn get_current() -> Result<Response<Body>, Infallible> {
+    let len = STATE.lock().unwrap().len();
+    Ok(Response::builder()
+        .header("Content-Type", "text/json")
+        .status(StatusCode::OK)
+        .body(Body::from(format!("{{ \"num\": {} }}", len)))
+        .unwrap())
+}
+
+async fn handle_request(req: Request<Body>) -> Result<Response<Body>, Infallible> {
+    match (req.method(), req.uri().path()) {
+        // TODO: make this prefix configurable
+        (&Method::GET, "/metrics") => get(),
+        (&Method::GET, "/metrics/current") => get_current(),
+        (&Method::POST, "/metrics/update") => post(req).await,
+        _ => {
+            let resp = Response::builder()
+                .status(StatusCode::NOT_FOUND)
+                .body(Body::from("Nothing here, I'm afraid!"))
+                .unwrap();
+
+            Ok(resp)
+        }
+    }
+}
+
+#[tokio::main]
+async fn main() {
+    eprintln!("ID Length: {}", ratman_identity::ID_LEN);
+    thread::spawn(|| dump_metrics());
+
+    let addr = SocketAddr::from(([0, 0, 0, 0], 7667));
+    let service = make_service_fn(|_c| async { Ok::<_, Infallible>(service_fn(handle_request)) });
+
+    eprintln!("Bindng address: 0.0.0.0:7667");
+    let server = Server::bind(&addr).serve(service);
+
+    
+    if let Err(e) = server.await {
+        eprintln!("[ERROR]: {}", e);
+    }
+}