prototype code upload

planetwars-server/Cargo.toml

@@ -8,7 +8,7 @@ edition = "2021"
 [dependencies]
 tokio = { version = "1.15", features = ["full"] }
 hyper = "0.14"
-axum = { version = "0.4", features = ["json", "headers"] }
+axum = { version = "0.4", features = ["json", "headers", "multipart"] }
 diesel = { version = "1.4.4", features = ["postgres", "chrono"] }
 bb8 = "0.7"
 bb8-diesel = "0.2"

planetwars-server/src/lib.rs

@@ -36,7 +36,10 @@ pub async fn api() -> Router {
         .route("/bots", post(routes::bots::create_bot))
         .route("/bots/my_bots", get(routes::bots::get_my_bots))
         .route("/bots/:bot_id", get(routes::bots::get_bot))
-        .route("/bots/:bot_id/upload", post(routes::bots::upload_bot_code))
+        .route(
+            "/bots/:bot_id/upload",
+            post(routes::bots::upload_code_multipart),
+        )
         .layer(AddExtensionLayer::new(pool));
     api
 }

planetwars-server/src/routes/bots.rs

@@ -1,17 +1,21 @@
-use axum::extract::{Path, RawBody};
+use axum::extract::{Multipart, Path, RawBody};
 use axum::http::StatusCode;
 use axum::response::IntoResponse;
 use axum::Json;
+use rand::distributions::Alphanumeric;
 use rand::Rng;
 use serde::{Deserialize, Serialize};
 use std::io::Cursor;
-use std::path;
+use std::path::{self, PathBuf};
 
 use crate::db::bots::{self, CodeBundle};
 use crate::db::users::User;
 use crate::DatabaseConnection;
 use bots::Bot;
 
+// TODO: make this a parameter
+const BOTS_DIR: &str = "./data/bots";
+
 #[derive(Serialize, Deserialize, Debug)]
 pub struct BotParams {
     name: String,
@@ -46,41 +50,48 @@ pub async fn get_my_bots(
         .map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)
 }
 
-// TODO: proper error handling
-pub async fn upload_bot_code(
+// TODO: currently this only implements the happy flow
+pub async fn upload_code_multipart(
     conn: DatabaseConnection,
     user: User,
     Path(bot_id): Path<i32>,
-    RawBody(body): RawBody,
-) -> (StatusCode, Json<CodeBundle>) {
-    // TODO: put in config somewhere
-    let data_path = "./data/bots";
+    mut multipart: Multipart,
+) -> Result<Json<CodeBundle>, StatusCode> {
+    let bots_dir = PathBuf::from(BOTS_DIR);
 
-    let bot = bots::find_bot(bot_id, &conn).expect("Bot not found");
+    let bot = bots::find_bot(bot_id, &conn).map_err(|_| StatusCode::NOT_FOUND)?;
 
-    assert_eq!(user.id, bot.owner_id);
+    if user.id != bot.owner_id {
+        return Err(StatusCode::FORBIDDEN);
+    }
 
-    // generate a random filename
-    let token: [u8; 16] = rand::thread_rng().gen();
-    let name = base64::encode(&token);
+    let data = multipart
+        .next_field()
+        .await
+        .map_err(|_| StatusCode::BAD_REQUEST)?
+        .ok_or(StatusCode::BAD_REQUEST)?
+        .bytes()
+        .await
+        .map_err(|_| StatusCode::BAD_REQUEST)?;
 
-    let path = path::Path::new(data_path).join(name);
-    // let capped_buf = data.open(10usize.megabytes()).into_bytes().await.unwrap();
-    // assert!(capped_buf.is_complete());
-    // let buf = capped_buf.into_inner();
-    let buf = hyper::body::to_bytes(body).await.unwrap();
+    // TODO: this random path might be a bit redundant
+    let folder_name: String = rand::thread_rng()
+        .sample_iter(&Alphanumeric)
+        .take(16)
+        .map(char::from)
+        .collect();
 
-    zip::ZipArchive::new(Cursor::new(buf))
-        .unwrap()
-        .extract(&path)
-        .unwrap();
+    zip::ZipArchive::new(Cursor::new(data))
+        .map_err(|_| StatusCode::BAD_REQUEST)?
+        .extract(bots_dir.join(&folder_name))
+        .map_err(|_| StatusCode::BAD_REQUEST)?;
 
     let bundle = bots::NewCodeBundle {
         bot_id: bot.id,
-        path: path.to_str().unwrap(),
+        path: &folder_name,
     };
     let code_bundle =
         bots::create_code_bundle(&bundle, &conn).expect("Failed to create code bundle");
 
-    (StatusCode::CREATED, Json(code_bundle))
+    Ok(Json(code_bundle))
 }

web/pw-server/src/routes/bots/[bot_id].svelte

@@ -6,7 +6,7 @@
     const res = await fetch(`/api/bots/${page.params["bot_id"]}`, {
       headers: {
         "Content-Type": "application/json",
-        Authorization: `Bearer ${token}`,
+        "Authorization": `Bearer ${token}`,
       },
     });
 
@@ -27,8 +27,36 @@
 
 <script lang="ts">
   export let bot: object;
+
+  let files;
+
+  async function submitCode() {
+    console.log("click");
+    const token = get_session_token();
+
+    const formData = new FormData();
+    formData.append("File", files[0]);
+
+    const res = await fetch(`/api/bots/${bot["id"]}/upload`, {
+      method: "POST",
+      headers: {
+        // the content type header will be set by the browser
+        "Authorization": `Bearer ${token}`,
+      },
+      body: formData,
+    });
+
+    console.log(res.statusText);
+  }
 </script>
 
 <div>
   {bot["name"]}
 </div>
+
+
+<div>Upload code</div>
+<form on:submit|preventDefault={submitCode}>
+  <input type="file" bind:files/>
+  <button type="submit">Submit</button>
+</form>