Added frontend code. Everything in rust. We use wasm-bindgen+web_sys

.gitignore

@@ -3,3 +3,5 @@ passcode.txt
 config.toml
 .idea
 target
+local_file_storage/
+target_pkg/

Cargo.lock

@@ -62,6 +62,7 @@ dependencies = [
  "matchit",
  "memchr",
  "mime",
+ "multer",
  "percent-encoding",
  "pin-project-lite",
  "rustversion",
@@ -173,9 +174,9 @@ checksum = "1e748733b7cbc798e1434b6ac524f0c1ff2ab456fe201501e6497c8417a4fc33"
 
 [[package]]
 name = "cc"
-version = "1.2.56"
+version = "1.2.57"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aebf35691d1bfb0ac386a69bac2fde4dd276fb618cf8bf4f5318fe285e821bb2"
+checksum = "7a0dd1ca384932ff3641c8718a02769f1698e7563dc6974ffd03346116310423"
 dependencies = [
  "find-msvc-tools",
  "shlex",
@@ -366,6 +367,15 @@ dependencies = [
  "percent-encoding",
 ]
 
+[[package]]
+name = "frontend"
+version = "0.1.0"
+dependencies = [
+ "js-sys",
+ "wasm-bindgen",
+ "web-sys",
+]
+
 [[package]]
 name = "futures-channel"
 version = "0.3.32"
@@ -759,9 +769,9 @@ dependencies = [
 
 [[package]]
 name = "ipnet"
-version = "2.11.0"
+version = "2.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "469fb0b9cefa57e3ef31275ee7cacb78f2fdca44e4765491884a2b119d4eb130"
+checksum = "d98f6fed1fde3f8c21bc40a1abb88dd75e67924f9cffc3ef95607bad8017f8e2"
 
 [[package]]
 name = "iri-string"
@@ -775,9 +785,9 @@ dependencies = [
 
 [[package]]
 name = "itoa"
-version = "1.0.17"
+version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "92ecc6618181def0457392ccd0ee51198e065e016d1d527a7ac1b6dc7c1f09d2"
+checksum = "8f42a60cbdf9a97f5d2305f08a87dc4e09308d1276d28c869c684d7777685682"
 
 [[package]]
 name = "js-sys"
@@ -797,9 +807,9 @@ checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
 
 [[package]]
 name = "libc"
-version = "0.2.181"
+version = "0.2.183"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "459427e2af2b9c839b132acb702a1c654d95e10f8c326bfc2ad11310e458b1c5"
+checksum = "b5b646652bf6661599e1da8901b3b9522896f01e736bad5f723fe7a3a27f899d"
 
 [[package]]
 name = "libm"
@@ -944,9 +954,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.21.3"
+version = "1.21.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "42f5e15c9953c5e4ccceeb2e7382a716482c34515315f7b03532b8b4e8393d2d"
+checksum = "9f7c3e4beb33f85d45ae3e3a1792185706c8e16d043238c593331cc7cd313b50"
 
 [[package]]
 name = "parking_lot"
@@ -1182,9 +1192,9 @@ dependencies = [
 
 [[package]]
 name = "quinn-proto"
-version = "0.11.13"
+version = "0.11.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f1906b49b0c3bc04b5fe5d86a77925ae6524a19b816ae38ce1e426255f1d8a31"
+checksum = "434b42fec591c96ef50e21e886936e66d3cc3f737104fdb9b737c40ffb94c098"
 dependencies = [
  "bytes",
  "getrandom 0.3.4",
@@ -1217,9 +1227,9 @@ dependencies = [
 
 [[package]]
 name = "quote"
-version = "1.0.44"
+version = "1.0.45"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "21b2ebcf727b7760c461f091f9f0f539b77b8e87f2fd88131e7f1b433b3cece4"
+checksum = "41f2619966050689382d2b44f664f4bc593e129785a36d6ee376ddf37259b924"
 dependencies = [
  "proc-macro2",
 ]
@@ -1379,22 +1389,6 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
-[[package]]
-name = "rust_tripping"
-version = "0.1.2"
-dependencies = [
- "axum",
- "axum-extra",
- "rand 0.8.5",
- "reqwest",
- "serde",
- "tera",
- "tokio",
- "tokio-postgres",
- "toml",
- "tower-http 0.5.2",
-]
-
 [[package]]
 name = "rustc-hash"
 version = "2.1.1"
@@ -1427,9 +1421,9 @@ dependencies = [
 
 [[package]]
 name = "rustls-webpki"
-version = "0.103.9"
+version = "0.103.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d7df23109aa6c1567d1c575b9952556388da57401e4ace1d15f79eedad0d8f53"
+checksum = "df33b2b81ac578cabaf06b89b0631153a3f416b0a886e8a7a1707fb51abbd1ef"
 dependencies = [
  "ring",
  "rustls-pki-types",
@@ -1585,12 +1579,12 @@ checksum = "67b1b7a3b5fe4f1376887184045fcf45c69e92af734b7aaddc05fb777b6fbd03"
 
 [[package]]
 name = "socket2"
-version = "0.6.2"
+version = "0.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "86f4aa3ad99f2088c990dfa82d367e19cb29268ed67c574d10d0a4bfe71f07e0"
+checksum = "3a766e1110788c36f4fa1c2b71b387a7815aa65f88ce0229841826633d93723e"
 dependencies = [
  "libc",
- "windows-sys 0.60.2",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -1624,9 +1618,9 @@ checksum = "13c2bddecc57b384dee18652358fb23172facb8a2c51ccc10d74c157bdea3292"
 
 [[package]]
 name = "syn"
-version = "2.0.114"
+version = "2.0.117"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d4d107df263a3013ef9b1879b0df87d706ff80f65a86ea879bd9c31f9b307c2a"
+checksum = "e665b8803e7b1d2a727f4023456bbbbe74da67099c585258af0ad9c5013b9b99"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1738,9 +1732,9 @@ dependencies = [
 
 [[package]]
 name = "tinyvec"
-version = "1.10.0"
+version = "1.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bfa5fdc3bce6191a1dbc8c02d5c8bffcf557bafa17c124c5264a458f1b0613fa"
+checksum = "3e61e67053d25a4e82c844e8424039d9745781b3fc4f32b8d55ed50f5f667ef3"
 dependencies = [
  "tinyvec_macros",
 ]
@@ -1753,9 +1747,9 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
 
 [[package]]
 name = "tokio"
-version = "1.49.0"
+version = "1.50.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "72a2903cd7736441aac9df9d7688bd0ce48edccaadf181c3b90be801e81d3d86"
+checksum = "27ad5e34374e03cfffefc301becb44e9dc3c17584f414349ebe29ed26661822d"
 dependencies = [
  "bytes",
  "libc",
@@ -1768,9 +1762,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-macros"
-version = "2.6.0"
+version = "2.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "af407857209536a95c8e56f8231ef2c2e2aff839b22e07a1ffcbc617e9db9fa5"
+checksum = "5c55a2eff8b69ce66c84f85e1da1c233edc36ceb85a2058d11b0d6a3c7e7569c"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1990,9 +1984,9 @@ checksum = "5c1cb5db39152898a79168971543b1cb5020dff7fe43c8dc468b0885f5e29df5"
 
 [[package]]
 name = "unicode-ident"
-version = "1.0.23"
+version = "1.0.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "537dd038a89878be9b64dd4bd1b260315c1bb94f4d784956b81e27a088d9a09e"
+checksum = "e6e4313cd5fcd3dad5cafa179702e2b244f760991f45397d14d4ebf38247da75"
 
 [[package]]
 name = "unicode-normalization"
@@ -2185,6 +2179,23 @@ dependencies = [
  "rustls-pki-types",
 ]
 
+[[package]]
+name = "website"
+version = "0.1.2"
+dependencies = [
+ "axum",
+ "axum-extra",
+ "rand 0.8.5",
+ "reqwest",
+ "serde",
+ "tera",
+ "tokio",
+ "tokio-postgres",
+ "tokio-util",
+ "toml",
+ "tower-http 0.5.2",
+]
+
 [[package]]
 name = "whoami"
 version = "2.1.1"
@@ -2468,18 +2479,18 @@ dependencies = [
 
 [[package]]
 name = "zerocopy"
-version = "0.8.39"
+version = "0.8.47"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db6d35d663eadb6c932438e763b262fe1a70987f9ae936e60158176d710cae4a"
+checksum = "efbb2a062be311f2ba113ce66f697a4dc589f85e78a4aea276200804cea0ed87"
 dependencies = [
  "zerocopy-derive",
 ]
 
 [[package]]
 name = "zerocopy-derive"
-version = "0.8.39"
+version = "0.8.47"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4122cd3169e94605190e77839c9a40d40ed048d305bfdc146e7df40ab0f3e517"
+checksum = "0e8bc7269b54418e7aeeef514aa68f8690b8c0489a06b0136e5f57c4c5ccab89"
 dependencies = [
  "proc-macro2",
  "quote",

Cargo.toml

@@ -1,16 +1,6 @@
-[package]
+[workspace]
-name = "rust_tripping"
+name="rust_tripping"
-version = "0.1.2"
+members = [
-edition = "2021"
+    "frontend",
-
+    "website",
-[dependencies]
+]
-rand = "0.8"
-axum = "0.7"
-tokio = { version = "1", features = ["rt-multi-thread", "macros"] }
-tower-http = { version = "0.5", features = ["fs"] }
-tera = "1.19.1"
-reqwest = { version = "0.12", features = ["json", "rustls-tls"], default-features = false }
-serde = { version = "1", features = ["derive"] }
-axum-extra = { version = "0.9", features = ["cookie"] }
-tokio-postgres = "0.7"
-toml = "0.8"

Makefile

@@ -0,0 +1,7 @@
+find_rust = $(shell find $(1) -type f -name '*.rs' )
+
+target/debug/frontend.wasm: $(call find_rust,frontend) frontend/Cargo.toml
+	cargo build -p frontend --target wasm32-unknown-unknown
+
+target_pkg/frontend_bg.wasm: target/debug/frontend.wasm
+	wasm-bindgen --target web --out-dir target_pkg target/wasm32-unknown-unknown/debug/frontend.wasm

config.example.toml

@@ -1,3 +1,4 @@
 postgres_host="/run/postgresql"
 pg_database="DATABASE_NAME"
 postgres_user="postgres"
+file_storage="file_storage"

frontend/Cargo.toml

@@ -0,0 +1,26 @@
+[package]
+name = "frontend"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+wasm-bindgen = "0.2"
+js-sys = "0.3"
+
+[dependencies.web-sys]
+version = "0.3"
+features = [
+    "Window",
+    "Document",
+    "Event",
+    "EventTarget",
+    "KeyboardEvent",
+    "MouseEvent",
+    "WheelEvent",
+    "HtmlCanvasElement",
+    "CanvasRenderingContext2d",
+    "Performance",
+]

frontend/pages/board.html

@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8" />
+  <title>wasm_test</title>
+  <style>
+    html,
+    body {
+      width: 100%;
+      height: 100%;
+      margin: 0;
+      overflow: hidden;
+    }
+
+    #canvas {
+      display: block;
+      width: 100%;
+      height: 100%;
+    }
+  </style>
+  <link rel="icon" href="data:,">
+
+  <script type="module">
+    import init, {init_index} from "/pkg/frontend.js";
+    await init().catch((err) => {
+      console.error("Failed to initialize WASM", err);
+    });
+    init_index();
+  </script>
+</head>
+<body>
+<canvas id="canvas"></canvas>
+</body>
+</html>

frontend/pages/index.html

@@ -0,0 +1,65 @@
+<!doctype html>
+<html lang="en" class="index-html">
+  <head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <title>Control Center</title>
+    <link rel="stylesheet" href="/static/css/site.css" />
+  </head>
+  <body class="index-body">
+    <div class="index-shell">
+      <header class="top-panel">
+        <div class="top-panel__left">
+          <a class="top-panel__brand" href="/">Ironlight</a>
+          <nav class="top-panel__nav">
+            <a class="top-panel__link" href="/upload">Upload</a>
+            <a class="top-panel__link" href="/welcome">Welcome</a>
+            <a class="top-panel__link" href="/login">Account</a>
+          </nav>
+        </div>
+        <div class="top-panel__right">
+          <span class="top-panel__user-label">Signed in</span>
+          <span class="top-panel__user-name">{{ logged_in_cur_user }}</span>
+        </div>
+      </header>
+
+      <main class="index-main">
+        <section class="index-hero">
+          <p class="index-hero__eyebrow">Dark Material Console</p>
+          <h1 class="index-hero__title">Fast uploads, calm interface.</h1>
+          <p class="index-hero__subtitle">
+            Keep your files close, your workflow focused, and your storage under control.
+          </p>
+          <div class="index-hero__actions">
+            <a class="index-hero__button" href="/upload">Upload a file</a>
+            <a class="index-hero__ghost" href="/welcome">Open welcome</a>
+          </div>
+        </section>
+
+        <section class="index-grid">
+          <article class="index-card">
+            <h2 class="index-card__title">Recent activity</h2>
+            <p class="index-card__text">
+              Track new files, size totals, and secure download links in one place.
+            </p>
+            <a class="index-card__link" href="/upload">Review uploads</a>
+          </article>
+          <article class="index-card">
+            <h2 class="index-card__title">Storage health</h2>
+            <p class="index-card__text">
+              Monitor usage and keep the 10&nbsp;GiB limit comfortably in sight.
+            </p>
+            <a class="index-card__link" href="/upload">View usage</a>
+          </article>
+          <article class="index-card">
+            <h2 class="index-card__title">Quick actions</h2>
+            <p class="index-card__text">
+              Jump straight into file uploads or check your latest shared links.
+            </p>
+            <a class="index-card__link" href="/upload">Start upload</a>
+          </article>
+        </section>
+      </main>
+    </div>
+  </body>
+</html>

frontend/pages/upload.html

@@ -0,0 +1,29 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <title>Upload file</title>
+    <link rel="stylesheet" href="/static/css/site.css" />
+  </head>
+  <body>
+    <h1>Upload file</h1>
+    <p>Maximum total storage: 10 GiB</p>
+
+    {% if error %}
+      <p class="error">{{ error }}</p>
+    {% endif %}
+
+    {% if success_id %}
+      <p>
+        Uploaded {{ success_filename }} ({{ success_size }} bytes).
+        <a href="/get/{{ success_id }}">Download</a>
+      </p>
+    {% endif %}
+
+    <form action="/upload" method="post" enctype="multipart/form-data">
+      <input type="file" name="file" required />
+      <button type="submit">Upload</button>
+    </form>
+  </body>
+</html>

frontend/src/lib.rs

@@ -0,0 +1,271 @@
+use std::cell::RefCell;
+use std::rc::Rc;
+use wasm_bindgen::closure::Closure;
+use wasm_bindgen::prelude::*;
+use wasm_bindgen::JsCast;
+use web_sys::{
+    window, CanvasRenderingContext2d, Document, HtmlCanvasElement, KeyboardEvent, WheelEvent,
+};
+
+#[derive(Default, Clone, Copy)]
+struct InputState {
+    w: bool,
+    a: bool,
+    s: bool,
+    d: bool,
+}
+
+struct Camera {
+    x: f64,
+    y: f64,
+    ppm: f64,
+}
+
+struct SceneState {
+    camera: Camera,
+    speed_pps: f64,
+    triangles: Vec<(&'static str, [(f64, f64); 3])>,
+    need_camera_setup: bool,
+}
+
+impl SceneState {
+    fn new() -> Self {
+        Self {
+            camera: Camera {
+                x: 0.0,
+                y: 0.0,
+                ppm: 10.0,
+            },
+            speed_pps: 900.0,
+            triangles: vec![
+                ("#ff6b6b", [(0.0, 0.0), (3.0, 0.0), (1.5, 2.5)]),
+                ("#4dabf7", [(-4.0, -2.0), (-1.0, -3.5), (-2.5, 0.5)]),
+                ("#ffd43b", [(2.0, -4.0), (5.0, -4.0), (4.0, -1.0)]),
+            ],
+            need_camera_setup: true,
+        }
+    }
+
+    fn setup_camera_if_needed(&mut self, width: f64, height: f64) {
+        if !self.need_camera_setup {
+            return;
+        }
+
+        if width <= 0.0 || height <= 0.0 || self.camera.ppm <= 0.0 {
+            return;
+        }
+
+        self.camera.x = -width / (2.0 * self.camera.ppm);
+        self.camera.y = -height / (2.0 * self.camera.ppm);
+        self.need_camera_setup = false;
+    }
+}
+
+fn update_key(state: &mut InputState, code: &str, is_down: bool) -> bool {
+    match code {
+        "KeyW" => {
+            state.w = is_down;
+            true
+        }
+        "KeyA" => {
+            state.a = is_down;
+            true
+        }
+        "KeyS" => {
+            state.s = is_down;
+            true
+        }
+        "KeyD" => {
+            state.d = is_down;
+            true
+        }
+        _ => false,
+    }
+}
+
+#[wasm_bindgen]
+pub fn init_index() -> Result<(), JsValue> {
+    let document: Document = window().unwrap().document().unwrap();
+    let canvas: HtmlCanvasElement = document
+        .get_element_by_id("canvas")
+        .ok_or_else(|| JsValue::from_str("Missing #canvas element"))?
+        .dyn_into()?;
+
+    let context: CanvasRenderingContext2d = canvas
+        .get_context("2d")?
+        .ok_or_else(|| JsValue::from_str("Missing 2d context"))?
+        .dyn_into()?;
+
+    let window = window().unwrap();
+    let canvas = canvas.clone();
+    let context = context.clone();
+
+    let input = Rc::new(RefCell::new(InputState::default()));
+    let scene = Rc::new(RefCell::new(SceneState::new()));
+    let last_time = Rc::new(RefCell::new(
+        window
+            .performance()
+            .ok_or_else(|| JsValue::from_str("Missing performance"))?
+            .now(),
+    ));
+
+    let input_down = input.clone();
+    let keydown = Closure::<dyn FnMut(KeyboardEvent)>::wrap(Box::new(move |event: KeyboardEvent| {
+        let code = event.code();
+        let mut state = input_down.borrow_mut();
+        if update_key(&mut state, &code, true) {
+            event.prevent_default();
+        }
+    }));
+    window.add_event_listener_with_callback("keydown", keydown.as_ref().unchecked_ref())?;
+    keydown.forget();
+
+    let input_up = input.clone();
+    let keyup = Closure::<dyn FnMut(KeyboardEvent)>::wrap(Box::new(move |event: KeyboardEvent| {
+        let code = event.code();
+        let mut state = input_up.borrow_mut();
+        if update_key(&mut state, &code, false) {
+            event.prevent_default();
+        }
+    }));
+    window.add_event_listener_with_callback("keyup", keyup.as_ref().unchecked_ref())?;
+    keyup.forget();
+
+    let scene_zoom = scene.clone();
+    let canvas_zoom = canvas.clone();
+    let wheel = Closure::<dyn FnMut(WheelEvent)>::wrap(Box::new(move |event: WheelEvent| {
+        event.prevent_default();
+
+        let pointer_x = event.offset_x() as f64;
+        let pointer_y = event.offset_y() as f64;
+
+        let mut scene = scene_zoom.borrow_mut();
+        let old_ppm = scene.camera.ppm;
+        let zoom_factor = (-event.delta_y() * 0.001).exp();
+        let mut new_ppm = old_ppm * zoom_factor;
+        let min_ppm = 2.0;
+        let max_ppm = 200.0;
+
+        if new_ppm < min_ppm {
+            new_ppm = min_ppm;
+        }
+        if new_ppm > max_ppm {
+            new_ppm = max_ppm;
+        }
+
+        let world_x = scene.camera.x + pointer_x / old_ppm;
+        let world_y = scene.camera.y + pointer_y / old_ppm;
+
+        scene.camera.ppm = new_ppm;
+        scene.camera.x = world_x - pointer_x / new_ppm;
+        scene.camera.y = world_y - pointer_y / new_ppm;
+    }));
+    canvas_zoom.add_event_listener_with_callback("wheel", wheel.as_ref().unchecked_ref())?;
+    wheel.forget();
+
+    let draw = Rc::new(RefCell::new(None::<Closure<dyn FnMut()>>));
+    let draw_handle = draw.clone();
+    let window_handle = window.clone();
+    let input_handle = input.clone();
+    let scene_handle = scene.clone();
+    let last_time_handle = last_time.clone();
+
+    *draw_handle.borrow_mut() = Some(Closure::wrap(Box::new(move || {
+        let now = window_handle
+            .performance()
+            .map(|perf| perf.now())
+            .unwrap_or(0.0);
+        let mut last = last_time_handle.borrow_mut();
+        let mut dt = (now - *last) / 1000.0;
+        *last = now;
+
+        if dt.is_nan() || dt.is_infinite() {
+            dt = 0.0;
+        }
+        if dt > 0.05 {
+            dt = 0.05;
+        }
+
+        let width = window_handle
+            .inner_width()
+            .ok()
+            .and_then(|v| v.as_f64())
+            .unwrap_or(0.0);
+        let height = window_handle
+            .inner_height()
+            .ok()
+            .and_then(|v| v.as_f64())
+            .unwrap_or(0.0);
+
+        canvas.set_width(width as u32);
+        canvas.set_height(height as u32);
+
+        let input = input_handle.borrow();
+        let mut scene = scene_handle.borrow_mut();
+        scene.setup_camera_if_needed(width, height);
+        let step = (scene.speed_pps / scene.camera.ppm) * dt;
+
+        if input.w {
+            scene.camera.y -= step;
+        }
+        if input.s {
+            scene.camera.y += step;
+        }
+        if input.a {
+            scene.camera.x -= step;
+        }
+        if input.d {
+            scene.camera.x += step;
+        }
+
+        context.set_fill_style(&JsValue::from_str("#0b0f17"));
+        context.fill_rect(0.0, 0.0, width, height);
+        context.set_line_width(1.0);
+        context.set_stroke_style(&JsValue::from_str("#111827"));
+
+        for (color, points) in scene.triangles.iter() {
+            let to_screen = |(x, y): (f64, f64)| -> (f64, f64) {
+                let sx =
+                    (x - scene.camera.x) * scene.camera.ppm;
+                let sy =
+                    (y - scene.camera.y) * scene.camera.ppm;
+                (sx, sy)
+            };
+
+            let (x0, y0) = to_screen(points[0]);
+            let (x1, y1) = to_screen(points[1]);
+            let (x2, y2) = to_screen(points[2]);
+
+            context.begin_path();
+            context.move_to(x0, y0);
+            context.line_to(x1, y1);
+            context.line_to(x2, y2);
+            context.close_path();
+
+            context.set_fill_style(&JsValue::from_str(color));
+            context.fill();
+            context.stroke();
+        }
+
+        let _ = window_handle.request_animation_frame(
+            draw.borrow().as_ref().unwrap().as_ref().unchecked_ref(),
+        );
+    }) as Box<dyn FnMut()>));
+
+    window.request_animation_frame(
+        draw_handle
+            .borrow()
+            .as_ref()
+            .unwrap()
+            .as_ref()
+            .unchecked_ref(),
+    )?;
+
+    Ok(())
+}
+
+#[wasm_bindgen]
+pub fn init_tables() -> Result<(), JsValue> {
+
+    Ok(())
+}

frontend/static/css/site.css

@@ -0,0 +1,377 @@
+html,
+body {
+  height: 100%;
+  width: 100%;
+  margin: 0;
+  padding: 0;
+  overflow: hidden;
+}
+
+body {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-family: "Georgia", "Times New Roman", serif;
+  color: #f7f4ef;
+  background: url("/static/images/skeleton.webp") top center / cover no-repeat;
+}
+
+.login-card,
+.welcome-card {
+  background: rgba(10, 10, 10, 0.65);
+  border: 1px solid rgba(255, 255, 255, 0.15);
+  border-radius: 16px;
+  padding: 28px 32px;
+  width: min(360px, 90vw);
+  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
+  backdrop-filter: blur(2px);
+}
+
+.login-card h1,
+.welcome-card h1 {
+  margin: 0 0 16px;
+  font-size: 28px;
+  letter-spacing: 0.5px;
+}
+
+.field {
+  display: block;
+  margin-bottom: 16px;
+}
+
+.label {
+  display: block;
+  margin-bottom: 6px;
+  font-size: 14px;
+  text-transform: uppercase;
+  letter-spacing: 1px;
+  color: #e6e0d7;
+}
+
+input[type="password"] {
+  width: 100%;
+  border-radius: 8px;
+  border: 1px solid rgba(255, 255, 255, 0.2);
+  padding: 10px 12px;
+  background: rgba(255, 255, 255, 0.08);
+  color: #fff;
+  font-size: 16px;
+  box-sizing: border-box;
+}
+
+button {
+  width: 100%;
+  border: none;
+  border-radius: 8px;
+  padding: 12px;
+  font-size: 16px;
+  font-weight: 600;
+  letter-spacing: 0.5px;
+  background: #f0c986;
+  color: #1c1200;
+  cursor: pointer;
+}
+
+button:hover {
+  background: #f3d6a4;
+}
+
+.error {
+  margin: 0 0 12px;
+  color: #ff6b6b;
+  font-weight: 600;
+}
+
+.mild-warning {
+  margin: 0 0 12px;
+  color: white;
+  font-weight: 200;
+}
+
+.index-html,
+.index-body {
+  height: 100%;
+  width: 100%;
+  overflow: auto;
+}
+
+.index-body {
+  margin: 0;
+  display: block;
+  min-height: 100%;
+  color: #f5f5f5;
+  font-family: "Fira Sans", "Space Grotesk", "Montserrat", sans-serif;
+  background:
+    radial-gradient(circle at 20% 20%, rgba(66, 90, 120, 0.35), transparent 55%),
+    radial-gradient(circle at 80% 0%, rgba(120, 70, 130, 0.25), transparent 50%),
+    linear-gradient(145deg, #0b0f15 0%, #0f141c 45%, #151a22 100%);
+}
+
+.index-shell {
+  min-height: 100%;
+  padding: 28px 32px 56px;
+  box-sizing: border-box;
+  display: flex;
+  flex-direction: column;
+  gap: 48px;
+}
+
+.top-panel {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 24px;
+  padding: 18px 28px;
+  background: rgba(17, 21, 29, 0.92);
+  border: 1px solid rgba(255, 255, 255, 0.08);
+  border-radius: 18px;
+  box-shadow:
+    0 16px 40px rgba(0, 0, 0, 0.45),
+    inset 0 1px 0 rgba(255, 255, 255, 0.04);
+  backdrop-filter: blur(8px);
+  animation: index-rise 0.55s ease-out both;
+}
+
+.top-panel__left {
+  display: flex;
+  align-items: center;
+  gap: 28px;
+  flex-wrap: wrap;
+}
+
+.top-panel__brand {
+  font-family: "Space Grotesk", "Fira Sans", sans-serif;
+  font-size: 20px;
+  font-weight: 700;
+  letter-spacing: 0.6px;
+  color: #ffffff;
+  text-decoration: none;
+}
+
+.top-panel__nav {
+  display: flex;
+  gap: 14px;
+  flex-wrap: wrap;
+}
+
+.top-panel__link {
+  color: #f5f5f5;
+  text-decoration: none;
+  font-size: 14px;
+  letter-spacing: 0.6px;
+  text-transform: uppercase;
+  padding: 8px 14px;
+  border-radius: 999px;
+  background: rgba(255, 255, 255, 0.06);
+  border: 1px solid transparent;
+  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
+}
+
+.top-panel__link:hover {
+  background: rgba(255, 255, 255, 0.12);
+  border-color: rgba(255, 255, 255, 0.18);
+  transform: translateY(-1px);
+}
+
+.top-panel__right {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  padding: 6px 12px;
+  border-radius: 999px;
+  background: rgba(255, 255, 255, 0.05);
+  border: 1px solid rgba(255, 255, 255, 0.08);
+}
+
+.top-panel__user-label {
+  font-size: 12px;
+  letter-spacing: 0.6px;
+  text-transform: uppercase;
+  color: rgba(255, 255, 255, 0.7);
+}
+
+.top-panel__user-name {
+  font-size: 14px;
+  font-weight: 600;
+  letter-spacing: 0.4px;
+  color: #ffffff;
+  padding: 6px 12px;
+  border-radius: 999px;
+  background: rgba(77, 118, 255, 0.28);
+  border: 1px solid rgba(110, 146, 255, 0.4);
+}
+
+.index-main {
+  display: flex;
+  flex-direction: column;
+  gap: 40px;
+  max-width: 1100px;
+  width: 100%;
+  margin: 0 auto;
+  animation: index-fade 0.6s ease-out both;
+  animation-delay: 0.1s;
+}
+
+.index-hero {
+  display: flex;
+  flex-direction: column;
+  gap: 16px;
+  padding: 24px 28px;
+  background: rgba(20, 24, 32, 0.75);
+  border-radius: 22px;
+  border: 1px solid rgba(255, 255, 255, 0.08);
+  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.35);
+}
+
+.index-hero__eyebrow {
+  margin: 0;
+  font-size: 13px;
+  letter-spacing: 1.6px;
+  text-transform: uppercase;
+  color: rgba(255, 255, 255, 0.7);
+}
+
+.index-hero__title {
+  margin: 0;
+  font-size: clamp(32px, 4vw, 44px);
+  font-weight: 700;
+  letter-spacing: 0.3px;
+}
+
+.index-hero__subtitle {
+  margin: 0;
+  font-size: 16px;
+  max-width: 680px;
+  color: rgba(255, 255, 255, 0.78);
+}
+
+.index-hero__actions {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 16px;
+  margin-top: 6px;
+}
+
+.index-hero__button {
+  text-decoration: none;
+  color: #0b0f15;
+  background: linear-gradient(135deg, #f0d27a 0%, #f8b46f 100%);
+  padding: 12px 22px;
+  border-radius: 999px;
+  font-weight: 600;
+  letter-spacing: 0.3px;
+  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
+  transition: transform 0.2s ease, box-shadow 0.2s ease;
+}
+
+.index-hero__button:hover {
+  transform: translateY(-2px);
+  box-shadow: 0 14px 24px rgba(0, 0, 0, 0.38);
+}
+
+.index-hero__ghost {
+  text-decoration: none;
+  color: #f5f5f5;
+  padding: 12px 20px;
+  border-radius: 999px;
+  border: 1px solid rgba(255, 255, 255, 0.2);
+  background: rgba(255, 255, 255, 0.06);
+  letter-spacing: 0.3px;
+  transition: border-color 0.2s ease, background 0.2s ease;
+}
+
+.index-hero__ghost:hover {
+  background: rgba(255, 255, 255, 0.12);
+  border-color: rgba(255, 255, 255, 0.3);
+}
+
+.index-grid {
+  display: grid;
+  gap: 18px;
+  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
+}
+
+.index-card {
+  padding: 20px 22px;
+  background: rgba(18, 22, 30, 0.78);
+  border-radius: 18px;
+  border: 1px solid rgba(255, 255, 255, 0.08);
+  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.3);
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+  animation: index-fade 0.6s ease-out both;
+}
+
+.index-card__title {
+  margin: 0;
+  font-size: 18px;
+  font-weight: 600;
+}
+
+.index-card__text {
+  margin: 0;
+  font-size: 14px;
+  line-height: 1.6;
+  color: rgba(255, 255, 255, 0.75);
+}
+
+.index-card__link {
+  color: #ffffff;
+  text-decoration: none;
+  font-size: 14px;
+  letter-spacing: 0.3px;
+  padding: 8px 12px;
+  border-radius: 999px;
+  background: rgba(255, 255, 255, 0.08);
+  border: 1px solid rgba(255, 255, 255, 0.12);
+  width: fit-content;
+  transition: background 0.2s ease, border-color 0.2s ease;
+}
+
+.index-card__link:hover {
+  background: rgba(255, 255, 255, 0.14);
+  border-color: rgba(255, 255, 255, 0.2);
+}
+
+@keyframes index-rise {
+  from {
+    opacity: 0;
+    transform: translateY(-16px);
+  }
+  to {
+    opacity: 1;
+    transform: translateY(0);
+  }
+}
+
+@keyframes index-fade {
+  from {
+    opacity: 0;
+    transform: translateY(12px);
+  }
+  to {
+    opacity: 1;
+    transform: translateY(0);
+  }
+}
+
+@media (max-width: 720px) {
+  .index-shell {
+    padding: 20px 18px 36px;
+  }
+
+  .top-panel {
+    align-items: flex-start;
+    flex-direction: column;
+  }
+
+  .top-panel__right {
+    width: 100%;
+    justify-content: space-between;
+  }
+
+  .index-hero {
+    padding: 20px;
+  }
+}

src/pages/index.html

@@ -1,12 +0,0 @@
-<!doctype html>
-<html lang="en">
-  <head>
-    <meta charset="utf-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1" />
-    <title>Main page</title>
-    <link rel="stylesheet" href="/static/css/site.css" />
-  </head>
-  <body>
-    <h1>Main page</h1>
-  </body>
-</html>

src/static/css/site.css

@@ -1,89 +0,0 @@
-html,
-body {
-  height: 100%;
-  width: 100%;
-  margin: 0;
-  padding: 0;
-  overflow: hidden;
-}
-
-body {
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  font-family: "Georgia", "Times New Roman", serif;
-  color: #f7f4ef;
-  background: url("/static/images/wool.jpg") top center / cover no-repeat;
-}
-
-.login-card,
-.welcome-card {
-  background: rgba(10, 10, 10, 0.65);
-  border: 1px solid rgba(255, 255, 255, 0.15);
-  border-radius: 16px;
-  padding: 28px 32px;
-  width: min(360px, 90vw);
-  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
-  backdrop-filter: blur(2px);
-}
-
-.login-card h1,
-.welcome-card h1 {
-  margin: 0 0 16px;
-  font-size: 28px;
-  letter-spacing: 0.5px;
-}
-
-.field {
-  display: block;
-  margin-bottom: 16px;
-}
-
-.label {
-  display: block;
-  margin-bottom: 6px;
-  font-size: 14px;
-  text-transform: uppercase;
-  letter-spacing: 1px;
-  color: #e6e0d7;
-}
-
-input[type="password"] {
-  width: 100%;
-  border-radius: 8px;
-  border: 1px solid rgba(255, 255, 255, 0.2);
-  padding: 10px 12px;
-  background: rgba(255, 255, 255, 0.08);
-  color: #fff;
-  font-size: 16px;
-  box-sizing: border-box;
-}
-
-button {
-  width: 100%;
-  border: none;
-  border-radius: 8px;
-  padding: 12px;
-  font-size: 16px;
-  font-weight: 600;
-  letter-spacing: 0.5px;
-  background: #f0c986;
-  color: #1c1200;
-  cursor: pointer;
-}
-
-button:hover {
-  background: #f3d6a4;
-}
-
-.error {
-  margin: 0 0 12px;
-  color: #ff6b6b;
-  font-weight: 600;
-}
-
-.mild-warning {
-  margin: 0 0 12px;
-  color: white;
-  font-weight: 200;
-}

website/Cargo.toml

@@ -0,0 +1,17 @@
+[package]
+name = "website"
+version = "0.1.2"
+edition = "2021"
+
+[dependencies]
+rand = "0.8"
+axum = { version = "0.7", features = ["multipart"] }
+tokio = { version = "1", features = ["rt-multi-thread", "macros", "fs", "io-util"] }
+tower-http = { version = "0.5", features = ["fs"] }
+tera = "1.19.1"
+reqwest = { version = "0.12", features = ["json", "rustls-tls"], default-features = false }
+serde = { version = "1", features = ["derive"] }
+axum-extra = { version = "0.9", features = ["cookie"] }
+tokio-postgres = "0.7"
+toml = "0.8"
+tokio-util = { version = "0.7", features = ["io"] }

website/src/bin/init_db.rs

@@ -1,4 +1,4 @@
-use rust_tripping::init_db;
+use website::init_db;
 
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {

website/src/bin/run_server.rs

@@ -1,4 +1,4 @@
-use rust_tripping::run_server;
+use website::run_server;
 
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {

website/src/config.rs

@@ -8,6 +8,7 @@ pub struct GeneralServiceConfig {
     pub postgres_host: String,
     pub pg_database: String,
     pub postgres_user: String,
+    pub file_storage: String,
 }
 
 pub type ConfigResult<T> = Result<T, Box<dyn std::error::Error>>;
@@ -32,6 +33,14 @@ pub fn load_config(path: impl AsRef<Path>) -> ConfigResult<GeneralServiceConfig>
         .into());
     }
 
+    if config.file_storage.trim().is_empty() {
+        return Err(std::io::Error::new(
+            std::io::ErrorKind::InvalidData,
+            "config file_storage is empty",
+        )
+        .into());
+    }
+
     Ok(config)
 }
 

website/src/db.rs

@@ -1,8 +1,7 @@
 use tokio_postgres::{Client, NoTls};
 
-const PERSON_SCHEMA_NAME: &str = "public";
-
 use crate::config::GeneralServiceConfig;
+use crate::web_file_uploads::render_upload_page;
 
 pub type DbResult<T> = Result<T, Box<dyn std::error::Error>>;
 
@@ -25,14 +24,23 @@ pub async fn connect_db(config: &GeneralServiceConfig) -> DbResult<Client> {
 pub async fn init_database(config: &GeneralServiceConfig) -> DbResult<()> {
     let client = connect_db(config).await?;
 
-    let create_sql = format!(
+    let create_sql =
-        "CREATE TABLE IF NOT EXISTS \"{}\".person (\
+        "CREATE TABLE IF NOT EXISTS person (\
             id SERIAL PRIMARY KEY,\
             name TEXT NOT NULL,\
             passcode TEXT NOT NULL\
-        )",
+        )";
-        PERSON_SCHEMA_NAME
+    client.execute(create_sql, &[]).await?;
-    );
+
-    client.execute(create_sql.as_str(), &[]).await?;
+    let create_files_sql =
+        "CREATE TABLE IF NOT EXISTS stored_file (\
+            id SERIAL PRIMARY KEY,\
+            filename TEXT NOT NULL,\
+            size BIGINT NOT NULL\
+        )";
+    client.execute(create_files_sql, &[]).await?;
+
+    tokio::fs::create_dir_all(&config.file_storage).await?;
+
     Ok(())
 }

website/src/lib.rs

@@ -2,9 +2,11 @@ mod samplers;
 mod invoking_llms;
 mod db;
 mod config;
+mod web_file_uploads;
+mod web_app_state;
 
 use axum::{
-    extract::{Form, Query, State},
+    extract::{DefaultBodyLimit, Form, Query, State},
     response::{Html, IntoResponse, Redirect, Response},
     routing::{get, post},
     Router,
@@ -16,34 +18,20 @@ use std::net::SocketAddr;
 use std::pin::Pin;
 use std::sync::OnceLock;
 use tera::{Tera};
-use tower_http::services::ServeDir;
+use tower_http::services::{ServeDir, ServeFile};
 
 use samplers::random_junk::random_string;
-pub use config::{ConfigResult, GeneralServiceConfig, load_config, load_config_default};
+use config::{ConfigResult, GeneralServiceConfig, load_config, load_config_default};
-pub use db::{DbResult, connect_db, init_database};
+use db::{DbResult, connect_db, init_database};
+use web_file_uploads::{get_file, upload_get, upload_post};
+use web_app_state::{AppState, AppStateInner, AuthenticatedUserId};
 
-pub struct AppStateInner {
-    pub config: GeneralServiceConfig,
-    pub db: tokio_postgres::Client,
-}
 
-pub type AppState = std::sync::Arc<AppStateInner>;
+pub async fn init_app_state() -> Result<AppState, Box<dyn std::error::Error>> {
-
-pub async fn init_app_state() -> DbResult<AppState> {
     let config = load_config_default()?;
     let db = connect_db(&config).await?;
-    Ok(std::sync::Arc::new(AppStateInner { config, db }))
+    let tera = Tera::new("frontend/pages/**/*.html")?;
-}
+    Ok(std::sync::Arc::new(AppStateInner { config, db, tera }))
-
-static TEMPLATES: OnceLock<Tera> = OnceLock::new();
-
-fn templates() -> &'static Tera {
-    TEMPLATES.get_or_init(|| Tera::new("src/pages/**/*.html").expect("load templates"))
-}
-
-struct AuthenticatedUserId {
-    id: i32,
-    name: String,
 }
 
 enum PasscodeAuthenticationResult{
@@ -59,14 +47,14 @@ enum WebsiteAuthenticationResult {
 async fn website_authentication_with_passcode(
     state: &AppStateInner, passcode: &str) -> PasscodeAuthenticationResult {
     let row = state.db.query_opt(
-        "SELECT id, name FROM public.person WHERE passcode = $1 LIMIT 1",
+        "SELECT id, name FROM person WHERE passcode = $1 LIMIT 1",
         &[&passcode],
     ).await;
 
     match row {
         Ok(Some(row)) => PasscodeAuthenticationResult::Ok(AuthenticatedUserId {
-            id: row.get(0),
+            id: row.get::<_, i32>(0),
-            name: row.get(1),
+            name: row.get::<_, String>(1),
         }),
         Ok(None) => PasscodeAuthenticationResult::WrongPassword,
         Err(err) => {
@@ -91,15 +79,13 @@ async fn website_authentication_with_cookie(
 }
 
 
-fn axum_handler_with_auth<T, H, Res>(
+fn axum_handler_with_auth<H, Fut, Res, T>(
     handler: H,
     state: AppState,
 ) -> impl Fn(CookieJar, T) -> std::pin::Pin<Box<dyn Future<Output = Response> + Send>> + Clone + Send + 'static
 where
-    H: for<'a> Fn(T, &'a AppStateInner, AuthenticatedUserId) -> std::pin::Pin<Box<dyn Future<Output = Res> + Send + 'a>>
+    H: (Fn(T, AppState, AuthenticatedUserId) -> Fut) + Send + Clone + 'static,
-        + Clone
+    Fut: Future<Output = Res> + Send + 'static,
-        + Send
-        + 'static,
     Res: IntoResponse + 'static,
     T: Send + 'static,
 {
@@ -110,7 +96,7 @@ where
             let res = website_authentication_with_cookie(state.as_ref(), &jar).await;
             match res {
                 WebsiteAuthenticationResult::SomeCookie(PasscodeAuthenticationResult::Ok(user)) => {
-                    handler(args, state.as_ref(), user).await.into_response()
+                    handler(args, state, user).await.into_response()
                 }
                 WebsiteAuthenticationResult::NoCookie => {
                     Redirect::to("/login").into_response()
@@ -167,9 +153,7 @@ async fn login_get(
         ctx.insert("logged_in_cur_user", &cur_user.name);
     }
 
-    let body = templates()
+    let body = state.tera.render("login.html", &ctx).expect("render index");
-        .render("login.html", &ctx)
-        .expect("render index");
     (jar, Html(body))
 }
 
@@ -205,41 +189,59 @@ async fn login_post(
     }
 }
 
-fn index(
+
+async fn index(
     _: (),
-    _state: &AppStateInner,
+    state: AppState,
-    _user: AuthenticatedUserId,
+    user: AuthenticatedUserId,
-) -> std::pin::Pin<Box<dyn Future<Output = Html<String>> + Send + '_>> {
+) -> impl IntoResponse {
-    Box::pin(async move {
+    let mut ctx = tera::Context::new();
-        let body = templates()
+    ctx.insert("logged_in_cur_user", &user.name);
-            .render("index.html", &tera::Context::new())
+    let body = state.tera
-            .expect("render index");
+        .render("index.html", &ctx)
-        Html(body)
+        .expect("render index");
-    })
+    Html(body)
 }
 
 
-fn welcome(
+async fn welcome(
     _: (),
-    _state: &AppStateInner,
+    _state: AppState,
     _user: AuthenticatedUserId,
-) -> std::pin::Pin<Box<dyn Future<Output = Html<String>> + Send + '_>> {
+) -> impl IntoResponse {
-    Box::pin(async move {
+    let body = _state.tera
-        let body = templates()
+        .render("welcome.html", &tera::Context::new())
-            .render("welcome.html", &tera::Context::new())
+        .expect("render welcome");
-            .expect("render welcome");
+    Html(body)
-        Html(body)
-    })
 }
 
+async fn board(
+    _: (),
+    _state: AppState,
+    _user: AuthenticatedUserId,
+) -> impl IntoResponse {
+    let body = _state.tera
+        .render("board.html", &tera::Context::new())
+        .expect("render welcome");
+    Html(body)
+}
+
+
 pub async fn run_server() -> Result<(), Box<dyn std::error::Error>> {
     let state = init_app_state().await.expect("lol");
     let app = Router::new()
         .route("/login", get(login_get))
         .route("/login", post(login_post))
-        .route("/welcome", get(axum_handler_with_auth(welcome, state.clone())))
+        .route("/upload", get(axum_handler_with_auth(upload_get, state.clone())))
-        .route("/", get(axum_handler_with_auth(index, state.clone())))
+        .route("/upload", post(axum_handler_with_auth(upload_post, state.clone())))
-        .nest_service("/static", ServeDir::new("src/static"))
+        .route("/get/:id", get(axum_handler_with_auth(get_file, state.clone())))
+        .route("/welcome", get(axum_handler_with_auth(welcome, state.clone())), )
+        .route("/board", get(axum_handler_with_auth(board, state.clone())), )
+        .route("/", get(axum_handler_with_auth(index, state.clone())), )
+        .nest_service("/static", ServeDir::new("frontend/static"))
+        .nest_service("/pkg/frontend.js", ServeFile::new("target_pkg/frontend.js"))
+        .nest_service("/pkg/frontend_bg.wasm", ServeFile::new("target_pkg/frontend_bg.wasm"))
+        .layer(DefaultBodyLimit::disable())
         .with_state(state);
 
     let addr: SocketAddr = "127.0.0.1:3000".parse().expect("valid socket addr");

website/src/web_app_state.rs

@@ -0,0 +1,15 @@
+use tera::Tera;
+use crate::GeneralServiceConfig;
+
+pub struct AppStateInner {
+    pub config: GeneralServiceConfig,
+    pub db: tokio_postgres::Client,
+    pub tera: Tera,
+}
+
+pub type AppState = std::sync::Arc<AppStateInner>;
+
+pub struct AuthenticatedUserId {
+    pub id: i32,
+    pub name: String,
+}

website/src/web_file_uploads.rs

@@ -0,0 +1,260 @@
+use axum::{
+    body::Body,
+    extract::{Multipart, Path, State},
+    http::{header, HeaderValue, StatusCode},
+    response::{Html, IntoResponse, Response},
+};
+use std::path::PathBuf;
+use tokio::io::AsyncWriteExt;
+use tokio_util::io::ReaderStream;
+
+pub const MAX_TOTAL_STORAGE_BYTES: i64 = 10 * 1024 * 1024 * 1024;
+pub const MAX_FILE_SIZE_BYTES: i64 = 10 * 1024 * 1024 * 1024;
+
+use crate::web_app_state::{AppState, AppStateInner, AuthenticatedUserId};
+
+pub struct UploadSuccess {
+    pub(crate) id: i32,
+    pub(crate) filename: String,
+    pub(crate) size: u64,
+}
+
+pub fn render_upload_page(state: &AppStateInner, error: Option<String>, success: Option<UploadSuccess>) -> Html<String> {
+    let mut ctx = tera::Context::new();
+    if let Some(error) = error {
+        ctx.insert("error", &error);
+    }
+    if let Some(success) = success {
+        ctx.insert("success_id", &success.id);
+        ctx.insert("success_filename", &success.filename);
+        ctx.insert("success_size", &success.size);
+    }
+    let body = state.tera
+        .render("upload.html", &ctx)
+        .expect("render upload");
+    Html(body)
+}
+
+pub async fn upload_get(
+    _: (),
+    _state: AppState,
+    _user: AuthenticatedUserId,) -> Html<String> {
+    render_upload_page(&_state, None, None)
+}
+
+pub async fn upload_post(
+    (headers, mut multipart): (axum::http::HeaderMap, Multipart),
+    _state: AppState,
+    _user: AuthenticatedUserId,
+) -> Html<String> {
+    let content_length: u64 = match headers
+        .get(header::CONTENT_LENGTH)
+        .and_then(|value| value.to_str().ok())
+        .and_then(|value| value.parse::<u64>().ok())
+    {
+        Some(value) => value,
+        _ => return render_upload_page(&_state,
+                Some("Missing or invalid Content-Length".to_string()),
+                None,
+            )
+    };
+
+    if (content_length > MAX_FILE_SIZE_BYTES as u64){
+        return render_upload_page(&_state, Some("File size is too big".to_string()), None);
+    }
+
+    let old_total_size: i64 = match _state .db.query_one(
+        "SELECT COALESCE(SUM(size), 0)::BIGINT FROM public.stored_file",
+        &[],
+    ).await {
+        Ok(row) => row.get::<_, i64>(0),
+        Err(err) => {
+            eprintln!("Database error: {err}");
+            return render_upload_page(&_state, Some("Server error".to_string()), None, );
+        }
+    };
+
+    assert!(0 <= old_total_size);
+    assert!(old_total_size <= MAX_TOTAL_STORAGE_BYTES);
+
+    let total_with_new: u64 = old_total_size as u64 + content_length;
+
+    if total_with_new > MAX_TOTAL_STORAGE_BYTES as u64 {
+        return render_upload_page(&_state,
+            Some("Storage limit exceeded (10 GiB)".to_string()), None,
+        );
+    }
+
+    let mut field = loop {
+        match multipart.next_field().await {
+            Ok(Some(field)) => {
+                if field.name() == Some("file") {
+                    break field;
+                }
+            }
+            Ok(None) => {}
+            Err(err) =>
+                return render_upload_page(&_state,
+                    Some(format!("Upload error: {err}")), None,
+                )
+        }
+    };
+
+    let filename = field
+        .file_name()
+        .map(|name| name.to_string())
+        .unwrap_or_else(|| "upload".to_string());
+
+    let row = match _state.db.query_one(
+        "INSERT INTO public.stored_file (filename, size) VALUES ($1, 0) RETURNING id",
+        &[&filename],
+        ).await
+    {
+        Ok(row) => row,
+        Err(err) => {
+            return render_upload_page(&_state,
+                Some(format!("Database error: {err}")),
+                None,
+            );
+        }
+    };
+    let id: i32 = row.get::<_, i32>(0);
+
+    let path = PathBuf::from(&_state.config.file_storage).join(id.to_string());
+    let mut file = match tokio::fs::File::create(&path).await {
+        Ok(file) => file,
+        Err(err) => {
+            let _ = _state.db.execute(
+                "DELETE FROM public.stored_file WHERE id = $1", &[&id]
+            ).await;
+            eprintln!("Cannot create file: {err}");
+            return render_upload_page(&_state,
+                Some("Filesystem error".to_string()), None,
+            );
+        }
+    };
+
+    if let Err(err) = file.set_len(content_length).await {
+        let _ = tokio::fs::remove_file(&path).await;
+        let _ = _state.db.execute(
+            "DELETE FROM public.stored_file WHERE id = $1", &[&id]
+        ).await;
+        eprintln!("Cannot preallocate file: {err}");
+        return render_upload_page(&_state,
+            Some("Filesystem error".to_string()), None,
+        );
+    }
+
+    let mut written: u64 = 0;
+    loop {
+        match field.chunk().await {
+            Ok(Some(chunk)) => {
+                let chunk_len = chunk.len() as u64;
+                if written + chunk_len > content_length {
+                    let _ = tokio::fs::remove_file(&path).await;
+                    let _ = _state.db.execute(
+                        "DELETE FROM public.stored_file WHERE id = $1", &[&id]
+                    ).await;
+                    return render_upload_page(&_state,
+                        Some("Your browser is bad".to_string()), None,
+                    );
+                }
+                written += chunk_len;
+                {
+                    let percent = 100. * (written as f32) / (content_length as f32);
+                    println!("DEBUG: uploaded {percent}, cur chunk is {chunk_len}")
+                }
+                if let Err(err) = file.write_all(&chunk).await {
+                    let _ = tokio::fs::remove_file(&path).await;
+                    let _ = _state.db.execute(
+                        "DELETE FROM public.stored_file WHERE id = $1", &[&id]
+                    ).await;
+                    eprintln!("Can't write chunk to file: {err}");
+                    return render_upload_page(&_state,
+                        Some("Filesystem error".to_string()), None,
+                    );
+                }
+            }
+            Ok(None) => break,
+            Err(err) => {
+                let _ = tokio::fs::remove_file(&path).await;
+                let _ = _state.db.execute(
+                    "DELETE FROM public.stored_file WHERE id = $1", &[&id]
+                ).await;
+                return render_upload_page(&_state,
+                    Some(format!("Upload error: {err}")), None,
+                );
+            }
+        }
+    }
+
+    if let Err(err) = _state.db.execute(
+    "UPDATE public.stored_file SET size = $1 WHERE id = $2",
+    &[&(written as i64), &id],
+    ).await {
+        let _ = tokio::fs::remove_file(&path).await;
+        let _ = _state.db.execute(
+            "DELETE FROM public.stored_file WHERE id = $1", &[&id]
+        ).await;
+
+        return render_upload_page(&_state,
+            Some("Server error".to_string()), None,
+        );
+    }
+
+    render_upload_page(&_state,
+        None, Some(UploadSuccess {
+            id, filename, size: written, })
+    )
+}
+
+pub async fn get_file(
+    Path(id): Path<i32>,
+    state: AppState,
+    _user: AuthenticatedUserId,
+) -> Response {
+    let row = match state
+        .db
+        .query_opt(
+            "SELECT filename, size FROM public.stored_file WHERE id = $1",
+            &[&id],
+        )
+        .await
+    {
+        Ok(Some(row)) => row,
+        Ok(None) => return StatusCode::NOT_FOUND.into_response(),
+        Err(err) => {
+            eprintln!("file lookup error: {err}");
+            return StatusCode::INTERNAL_SERVER_ERROR.into_response();
+        }
+    };
+
+    let filename: String = row.get(0);
+    let size: i64 = row.get(1);
+
+    let path = PathBuf::from(&state.config.file_storage).join(id.to_string());
+    let file = match tokio::fs::File::open(&path).await {
+        Ok(file) => file,
+        Err(err) => {
+            eprintln!("file open error for {path:?}: {err}");
+            return StatusCode::NOT_FOUND.into_response();
+        }
+    };
+
+    let stream = ReaderStream::new(file);
+    let body = Body::from_stream(stream);
+    let mut response = Response::new(body);
+    if let Ok(value) = HeaderValue::from_str(&size.to_string()) {
+        response.headers_mut().insert(header::CONTENT_LENGTH, value);
+    }
+    response
+        .headers_mut()
+        .insert(header::CONTENT_TYPE, HeaderValue::from_static("application/octet-stream"));
+    response.headers_mut().insert(
+        header::CONTENT_DISPOSITION,
+        HeaderValue::from_str(&format!("attachment; filename=\"{}\"", filename)).unwrap_or_else(
+            |_| HeaderValue::from_static("attachment"),
+        ),
+    );
+    response
+}