feat: begone memory map

.sqlx/query-a2f3905f8f8e14c95404f88f2e60dcf13e7b7caf5307bd19240655621251f7c9.json

@@ -0,0 +1,12 @@
+{
+  "db_name": "SQLite",
+  "query": "UPDATE records\nSET downloads = downloads + 1\nWHERE\n    cache_name = ?\n    AND downloads < max_downloads\n    AND julianday('now') - julianday(uploaded) > 5;\n",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": []
+  },
+  "hash": "a2f3905f8f8e14c95404f88f2e60dcf13e7b7caf5307bd19240655621251f7c9"
+}

queries/records/get_and_update.sql

@@ -1,8 +1,6 @@
-UPDATE record
+UPDATE records
 SET downloads = downloads + 1
-WHERE cache_name = ?
-RETURNING
-    cache_name,
-    uploaded,
-    downloads,
-    max_downloads;
+WHERE
+    cache_name = ?
+    AND downloads < max_downloads
+    AND julianday('now') - julianday(uploaded) > 5;

queries/records/get_record.sql

@@ -1,7 +1,7 @@
 SELECT
     cache_name,
-    uploaded,
-    downloads,
-    max_downloads
+    uploaded AS "uploaded: _",
+    downloads AS "downloads: i32",
+    max_downloads AS "max_downloads: i32"
 FROM records
 WHERE cache_name = ?;

queries/records/get_records.sql

@@ -1,6 +1,6 @@
 SELECT
     cache_name,
-    uploaded,
-    downloads,
-    max_downloads
+    uploaded AS "uploaded: _",
+    downloads AS "downloads: i32",
+    max_downloads AS "max_downloads: i32"
 FROM records;

queries/records/get_records_page.sql

@@ -1,7 +1,7 @@
 SELECT
     cache_name,
-    uploaded,
-    downloads,
-    max_downloads
+    uploaded AS "uploaded: _",
+    downloads AS "downloads: i32",
+    max_downloads AS "max_downloads: i32"
 FROM records
 LIMIT ? OFFSET ?;

queries/records/new_record.sql

@@ -1,2 +1,7 @@
 INSERT INTO records (cache_name, max_downloads)
-VALUES (?, ?);
+VALUES (?, ?)
+RETURNING
+    cache_name,
+    uploaded AS "uploaded: _",
+    downloads AS "downloads: i32",
+    max_downloads AS "max_downloads: i32";

src/cache.rs

@@ -1,38 +0,0 @@
-use crate::state::AppState;
-
-use serde::Serialize;
-use tokio::io::AsyncReadExt;
-
-use std::io;
-
-use std::collections::HashMap;
-
-pub async fn write_to_cache<T, Y>(records: &HashMap<T, Y>) -> io::Result<()>
-where
-    T: Serialize,
-    Y: Serialize,
-{
-    let mut records_cache = tokio::fs::File::create(".cache/data").await.unwrap();
-
-    let mut buf: Vec<u8> = Vec::with_capacity(200);
-    bincode::serialize_into(&mut buf, records).map_err(io::Error::other)?;
-
-    let bytes_written = tokio::io::copy(&mut buf.as_slice(), &mut records_cache).await?;
-
-    tracing::debug!("state cache size: {}", bytes_written);
-
-    Ok(())
-}
-
-pub async fn fetch_cache() -> AppState {
-    let records = if let Ok(file) = tokio::fs::File::open(".cache/data").await.as_mut() {
-        let mut buf: Vec<u8> = Vec::with_capacity(200);
-        file.read_to_end(&mut buf).await.unwrap();
-
-        bincode::deserialize_from(&mut buf.as_slice()).unwrap()
-    } else {
-        HashMap::new()
-    };
-
-    AppState::new(records)
-}

src/db.rs

@@ -1,6 +1,5 @@
 use chrono::{DateTime, Utc};
 
-#[derive(sqlx::Type)]
 pub struct CacheRecord {
     pub cache_name: String,
     pub uploaded: DateTime<Utc>,

src/lib.rs

@@ -1,4 +1,3 @@
-pub mod cache;
 pub mod db;
 pub mod router;
 pub mod state;
@@ -8,3 +7,7 @@ pub mod views;
 pub use router::*;
 pub use state::*;
 pub use views::*;
+
+use std::{path::PathBuf, sync::LazyLock};
+
+pub static CACHE_DIR: LazyLock<PathBuf> = LazyLock::new(|| PathBuf::from("./.cache/serve"));

src/main.rs

@@ -22,7 +22,7 @@ async fn main() -> io::Result<()> {
     // uses create_dir_all to create both .cache and serve inside it in one go
     util::make_dir(".cache/serve").await?;
 
-    let state = cache::fetch_cache().await;
+    let state = AppState::new();
 
     sweeper::spawn(state.clone());
 

src/router/download.rs

@@ -8,7 +8,7 @@ use axum::{
 use reqwest::StatusCode;
 use tokio_util::io::ReaderStream;
 
-use crate::{AppState, AsyncRemoveRecord};
+use crate::{AppState, CACHE_DIR};
 
 pub fn get_download_router() -> Router<AppState> {
     Router::new().route("/:id", get(download))
@@ -18,23 +18,25 @@ async fn download(
     axum::extract::Path(id): axum::extract::Path<String>,
     State(state): State<AppState>,
 ) -> Result<axum::response::Response, (StatusCode, String)> {
-    {
-        let mut records = state.records.lock().await;
-        if let Some(record) = records
-            .get_mut(&id)
-            .filter(|record| record.can_be_downloaded())
-        {
-            record.downloads += 1;
+    let mut conn = state.pool.acquire().await.unwrap();
 
-            let file = tokio::fs::File::open(&record.file).await.unwrap();
+    let rows_affected = sqlx::query_file!("queries/records/get_and_update.sql", id)
+        .execute(&mut *conn)
+        .await
+        .map_err(|err| (StatusCode::INTERNAL_SERVER_ERROR, err.to_string()))?
+        .rows_affected();
+
+    drop(conn);
+
+    if rows_affected > 0 {
+        let file = tokio::fs::File::open(CACHE_DIR.join(id))
+            .await
+            .map_err(|err| (StatusCode::INTERNAL_SERVER_ERROR, err.to_string()))?;
 
         return Ok(axum::response::Response::builder()
             .header("Content-Type", "application/zip")
             .body(Body::from_stream(ReaderStream::new(file)))
             .unwrap());
-        } else {
-            records.remove_record(&id).await.unwrap()
-        }
     }
 
     Ok(Redirect::to("/404.html").into_response())

src/router/link.rs

@@ -8,9 +8,10 @@ use axum_extra::TypedHeader;
 use reqwest::StatusCode;
 
 use crate::{
-    templates::{self, DownloadLinkTemplate},
+    db::CacheRecord,
+    templates::{DownloadLinkTemplate, DownloadsRemainingFragment},
     util::headers::HxRequest,
-    AppState, AsyncRemoveRecord,
+    AppState,
 };
 
 pub fn get_link_router() -> Router<AppState> {
@@ -22,47 +23,28 @@ pub fn get_link_router() -> Router<AppState> {
 
 async fn link(
     axum::extract::Path(id): axum::extract::Path<String>,
-    State(mut state): State<AppState>,
+    State(state): State<AppState>,
 ) -> Result<impl IntoResponse, Redirect> {
-    {
-        let mut records = state.records.lock().await;
+    let mut conn = state.pool.acquire().await.unwrap();
 
-        if let Some(record) = records
-            .get_mut(&id)
-            .filter(|record| record.can_be_downloaded())
-        {
-            return Ok(DownloadLinkTemplate {
-                id,
-                record: record.clone(),
-            });
-        }
-    }
-
-    // TODO: This....
-    state.remove_record(&id).await.unwrap();
-
-    Err(Redirect::to("/404.html"))
+    sqlx::query_file_as!(CacheRecord, "queries/records/get_record.sql", id)
+        .fetch_one(&mut *conn)
+        .await
+        .map(|record| DownloadLinkTemplate { record })
+        .map_err(|_| Redirect::to("/404.html"))
 }
 
 async fn link_delete(
     axum::extract::Path(id): axum::extract::Path<String>,
-    State(mut state): State<AppState>,
+    State(state): State<AppState>,
 ) -> Result<Html<String>, (StatusCode, String)> {
-    state
-        .remove_record(&id)
-        .await
-        .map_err(|err| (StatusCode::INTERNAL_SERVER_ERROR, err.to_string()))?;
-
-    {
     let mut conn = state.pool.acquire().await.unwrap();
 
     sqlx::query_file!("queries/records/remove_record.sql", id)
         .execute(&mut *conn)
         .await
-            .map_err(|err| (StatusCode::INTERNAL_SERVER_ERROR, err.to_string()))?;
-    }
-
-    Ok(Html("".to_string()))
+        .map(|_| Html("".to_string()))
+        .map_err(|err| (StatusCode::INTERNAL_SERVER_ERROR, err.to_string()))
 }
 
 async fn remaining(
@@ -77,12 +59,11 @@ async fn remaining(
         ));
     }
 
-    let records = state.records.lock().await;
+    let mut conn = state.pool.acquire().await.unwrap();
 
-    Ok(Html(
-        records
-            .get(&id)
-            .map(templates::get_downloads_remaining_text)
-            .unwrap_or_else(|| "?".to_string()),
-    ))
+    sqlx::query_file_as!(CacheRecord, "queries/records/get_record.sql", id)
+        .fetch_one(&mut *conn)
+        .await
+        .map(|record| DownloadsRemainingFragment { record })
+        .map_err(|err| (StatusCode::NOT_FOUND, err.to_string()))
 }

src/router/records.rs

@@ -6,13 +6,13 @@ use crate::{db::CacheRecordName, templates::LinkListTemplate, AppState};
 pub fn get_records_router() -> Router<AppState> {
     // Records views
     Router::new()
-        .route("/", get(records))
+        // .route("/", get(records))
         .route("/links", get(records_links))
 }
 
-pub(crate) async fn records(State(state): State<AppState>) -> impl IntoResponse {
-    Json(state.records.lock().await.clone())
-}
+// pub(crate) async fn records(State(state): State<AppState>) -> impl IntoResponse {
+//     Json(state.records.lock().await.clone())
+// }
 
 // This function is to remain ugly until that time in which I properly hide
 // this behind some kind of authentication

src/router/upload.rs

@@ -14,7 +14,7 @@ use tokio::io;
 use tokio_util::{compat::FuturesAsyncWriteCompatExt, io::StreamReader};
 use tower_http::limit::RequestBodyLimitLayer;
 
-use crate::{cache, templates::DownloadLinkFragment, util, AppState, UploadRecord};
+use crate::{db::CacheRecord, templates::DownloadLinkFragment, util, AppState};
 
 pub fn get_upload_router() -> Router<AppState> {
     // Upload needs a subrouter to increase the body limit
@@ -28,21 +28,44 @@ pub fn get_upload_router() -> Router<AppState> {
 
 async fn upload_to_zip(
     State(state): State<AppState>,
-    mut body: Multipart,
+    body: Multipart,
 ) -> Result<Response, (StatusCode, String)> {
-    tracing::debug!("{:?}", *state.records.lock().await);
-
     let cache_name = util::get_random_name(10);
 
     let archive_path = Path::new(".cache/serve").join(format!("{}.zip", &cache_name));
 
     tracing::debug!("Zipping: {:?}", &archive_path);
 
-    let mut archive = tokio::fs::File::create(&archive_path)
+    zip_body(&archive_path, body).await?;
+
+    let mut conn = state.pool.acquire().await.unwrap();
+
+    let record = sqlx::query_file_as!(CacheRecord, "queries/records/new_record.sql", cache_name, 5)
+        .fetch_one(&mut *conn)
+        .await
+        .map_err(|err| (StatusCode::INTERNAL_SERVER_ERROR, err.to_string()))?;
+
+    let id = cache_name;
+    let impl_response = (
+        StatusCode::OK,
+        [
+            ("Content-Type", "text/html"),
+            ("HX-Push-Url", &format!("/link/{}", &id)),
+        ],
+        DownloadLinkFragment { record },
+    );
+
+    Ok(impl_response.into_response())
+}
+
+async fn zip_body(
+    archive_path: &std::path::PathBuf,
+    mut body: Multipart,
+) -> Result<(), (StatusCode, String)> {
+    let mut archive = tokio::fs::File::create(archive_path)
         .await
         .map_err(|err| (StatusCode::INTERNAL_SERVER_ERROR, err.to_string()))?;
     let mut writer = ZipFileWriter::with_tokio(&mut archive);
-
     while let Some(field) = body.next_field().await.unwrap() {
         let file_name = match field.file_name() {
             Some(file_name) => sanitize(file_name),
@@ -72,41 +95,6 @@ async fn upload_to_zip(
             .await
             .map_err(|err| (StatusCode::INTERNAL_SERVER_ERROR, err.to_string()))?;
     }
-
-    let record = UploadRecord::new(archive_path);
-    let mut records = state.records.lock().await;
-
-    records.insert(cache_name.clone(), record.clone());
-
-    let records_cache = records.clone();
-    // Manually drop the records mutex guard
-    drop(records);
-
-    {
-        let mut conn = state.pool.acquire().await.unwrap();
-        let cache_name = cache_name.clone();
-
-        sqlx::query_file!("queries/records/new_record.sql", cache_name, 5)
-            .execute(&mut *conn)
-            .await
-            .map_err(|err| (StatusCode::INTERNAL_SERVER_ERROR, err.to_string()))?;
-    }
-
-    cache::write_to_cache(&records_cache)
-        .await
-        .map_err(|err| (StatusCode::INTERNAL_SERVER_ERROR, err.to_string()))?;
-
     writer.close().await.unwrap();
-
-    let id = cache_name;
-    let impl_response = (
-        StatusCode::OK,
-        [
-            ("Content-Type", "text/html"),
-            ("HX-Push-Url", &format!("/link/{}", &id)),
-        ],
-        DownloadLinkFragment { id, record },
-    );
-
-    Ok(impl_response.into_response())
+    Ok(())
 }

src/state.rs

@@ -1,18 +1,11 @@
 use std::{
-    collections::{hash_map::Entry, HashMap},
-    io::ErrorKind,
     path::{Path, PathBuf},
     str::FromStr,
-    sync::Arc,
 };
 
-use async_trait::async_trait;
 use chrono::{DateTime, Duration, Utc};
 use serde::{Deserialize, Serialize};
 use sqlx::{sqlite::SqliteConnectOptions, SqlitePool};
-use tokio::sync::Mutex;
-
-use crate::cache;
 
 #[allow(dead_code)]
 #[derive(Debug, Clone, Serialize, Deserialize)]
@@ -55,14 +48,12 @@ impl Default for UploadRecord {
 
 #[derive(Clone)]
 pub struct AppState {
-    pub records: Arc<Mutex<HashMap<String, UploadRecord>>>,
     pub pool: SqlitePool,
 }
 
 impl AppState {
-    pub fn new(records: HashMap<String, UploadRecord>) -> Self {
+    pub fn new() -> Self {
         Self {
-            records: Arc::new(Mutex::new(records)),
             pool: SqlitePool::connect_lazy_with(
                 SqliteConnectOptions::from_str("sqlite:testing.db")
                     .expect("Invalid Database String"),
@@ -71,34 +62,8 @@ impl AppState {
     }
 }
 
-#[async_trait]
-pub trait AsyncRemoveRecord {
-    async fn remove_record(&mut self, id: &str) -> Result<(), std::io::Error>;
-}
-
-#[async_trait]
-impl AsyncRemoveRecord for AppState {
-    async fn remove_record(&mut self, id: &str) -> Result<(), std::io::Error> {
-        let mut records = self.records.lock().await;
-        records.remove_record(id).await
-    }
-}
-
-#[async_trait]
-impl AsyncRemoveRecord for HashMap<String, UploadRecord> {
-    async fn remove_record(&mut self, id: &str) -> Result<(), std::io::Error> {
-        match self.entry(id.to_string()) {
-            Entry::Occupied(entry) => {
-                tokio::fs::remove_file(&entry.get().file).await?;
-                entry.remove_entry();
-                cache::write_to_cache(self).await?;
-
-                Ok(())
-            }
-            Entry::Vacant(_) => Err(std::io::Error::new(
-                ErrorKind::Other,
-                "No UploadRecord Found",
-            )),
-        }
+impl Default for AppState {
+    fn default() -> Self {
+        Self::new()
     }
 }

src/util/sweeper.rs

@@ -1,22 +1,22 @@
 use std::time::Duration;
 
-use crate::state::{AppState, AsyncRemoveRecord};
+use crate::state::AppState;
 
 /// Spawn a repeating task that will clean files periodically
-pub fn spawn(state: AppState) {
+pub fn spawn(_state: AppState) {
     tokio::spawn(async move {
         loop {
             tokio::time::sleep(Duration::from_secs(15 * 60)).await;
             tracing::info!("Cleaning Sweep!");
 
-            let mut records = state.records.lock().await;
-
-            for (key, record) in records.clone().into_iter() {
-                if !record.can_be_downloaded() {
-                    tracing::info!("culling: {:?}", record);
-                    records.remove_record(&key).await.unwrap();
-                }
-            }
+            // let mut records = state.records.lock().await;
+            //
+            // for (key, record) in records.clone().into_iter() {
+            //     if !record.can_be_downloaded() {
+            //         tracing::info!("culling: {:?}", record);
+            //         records.remove_record(&key).await.unwrap();
+            //     }
+            // }
         }
     });
 }

src/views/templates.rs

@@ -1,6 +1,6 @@
 use rinja_axum::Template;
 
-use crate::UploadRecord;
+use crate::db::CacheRecord;
 
 #[derive(Template)]
 #[template(path = "welcome.html")]
@@ -15,7 +15,7 @@ impl WelcomeTemplate {
 }
 
 #[inline]
-pub fn get_downloads_remaining_text(record: &UploadRecord) -> String {
+pub fn get_downloads_remaining_text(record: &CacheRecord) -> String {
     let downloads_remaining = record.max_downloads - record.downloads;
     let plural = if downloads_remaining > 1 { "s" } else { "" };
 
@@ -28,21 +28,19 @@ pub fn get_downloads_remaining_text(record: &UploadRecord) -> String {
 #[derive(Template)]
 #[template(path = "link.html")]
 pub struct DownloadLinkTemplate {
-    pub id: String,
-    pub record: UploadRecord,
+    pub record: CacheRecord,
 }
 
 #[derive(Template)]
 #[template(path = "link.html", block = "content")]
 pub struct DownloadLinkFragment {
-    pub id: String,
-    pub record: UploadRecord,
+    pub record: CacheRecord,
 }
 
 #[derive(Template)]
 #[template(path = "link.html", block = "downloads_remaining")]
 pub struct DownloadsRemainingFragment {
-    pub record: UploadRecord,
+    pub record: CacheRecord,
 }
 
 #[derive(Template)]

templates/link.html

@@ -4,12 +4,12 @@
   <div class="form-wrapper">
     <div class="column-container">
       <div class="link-wrapper">
-        <a id="link" href="/download/{{ id }}">Download Now!</a>
+        <a id="link" href="/download/{{ record.cache_name }}">Download Now!</a>
       </div>
 
       <div
         class="link-wrapper"
-        hx-get="/link/{{ id }}/remaining"
+        hx-get="/link/{{ record.cache_name }}/remaining"
         hx-trigger="click from:#link delay:0.2s, every 60s"
       >
         {% block downloads_remaining %}