rust downloading function

src-tauri/Cargo.lock

@@ -641,8 +641,10 @@ checksum = "b365fabc795046672053e29c954733ec3b05e4be654ab130fe8f1f94d7051f35"
 name = "cultivation"
 version = "0.1.0"
 dependencies = [
+ "futures-util",
  "hudsucker",
  "opener",
+ "reqwest",
  "rustls-pemfile",
  "serde",
  "serde_json",
@@ -861,6 +863,15 @@ version = "1.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4ef6b89e5b37196644d8796de5268852ff179b44e96276cf4290264843743bb7"
 
+[[package]]
+name = "encoding_rs"
+version = "0.8.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9852635589dc9f9ea1b6fe9f05b50ef208c85c834a562f0c6abb1c475736ec2b"
+dependencies = [
+ "cfg-if 1.0.0",
+]
+
 [[package]]
 name = "error-chain"
 version = "0.12.4"
@@ -1384,6 +1395,31 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "h2"
+version = "0.3.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "37a82c6d637fc9515a4694bbf1cb2457b79d81ce52b3108bdeea58b07dd34a57"
+dependencies = [
+ "bytes",
+ "fnv",
+ "futures-core",
+ "futures-sink",
+ "futures-util",
+ "http",
+ "indexmap",
+ "slab",
+ "tokio",
+ "tokio-util 0.7.1",
+ "tracing",
+]
+
+[[package]]
+name = "hashbrown"
+version = "0.11.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ab5ef0d4909ef3724cc8cce6ccc8572c5c817592e9285f5464f8e86f8bd3726e"
+
 [[package]]
 name = "heck"
 version = "0.3.3"
@@ -1484,7 +1520,7 @@ dependencies = [
  "tokio",
  "tokio-rustls",
  "tokio-tungstenite",
- "tokio-util",
+ "tokio-util 0.7.1",
  "tracing",
 ]
 
@@ -1498,6 +1534,7 @@ dependencies = [
  "futures-channel",
  "futures-core",
  "futures-util",
+ "h2",
  "http",
  "http-body",
  "httparse",
@@ -1526,6 +1563,19 @@ dependencies = [
  "webpki-roots",
 ]
 
+[[package]]
+name = "hyper-tls"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d6183ddfa99b85da61a140bea0efc93fdf56ceaa041b37d553518030827f9905"
+dependencies = [
+ "bytes",
+ "hyper",
+ "native-tls",
+ "tokio",
+ "tokio-native-tls",
+]
+
 [[package]]
 name = "hyper-tungstenite"
 version = "0.6.0"
@@ -1584,6 +1634,16 @@ dependencies = [
  "winapi-util",
 ]
 
+[[package]]
+name = "indexmap"
+version = "1.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0f647032dfaa1f8b6dc29bd3edb7bbef4861b8b8007ebb118d6db284fd59f6ee"
+dependencies = [
+ "autocfg",
+ "hashbrown",
+]
+
 [[package]]
 name = "infer"
 version = "0.7.0"
@@ -1611,6 +1671,12 @@ dependencies = [
  "cfg-if 1.0.0",
 ]
 
+[[package]]
+name = "ipnet"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "879d54834c8c76457ef4293a689b2a8c59b076067ad77b15efafbb05f92a592b"
+
 [[package]]
 name = "itertools"
 version = "0.10.3"
@@ -1867,6 +1933,12 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "mime"
+version = "0.3.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2a60c7ce501c71e03a9c9c0d35b861413ae925bd979cc7a4e30d060069aaac8d"
+
 [[package]]
 name = "minimal-lexical"
 version = "0.2.1"
@@ -2799,6 +2871,43 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "reqwest"
+version = "0.11.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "46a1f7aa4f35e5e8b4160449f51afc758f0ce6454315a9fa7d0d113e958c41eb"
+dependencies = [
+ "base64",
+ "bytes",
+ "encoding_rs",
+ "futures-core",
+ "futures-util",
+ "h2",
+ "http",
+ "http-body",
+ "hyper",
+ "hyper-tls",
+ "ipnet",
+ "js-sys",
+ "lazy_static",
+ "log",
+ "mime",
+ "native-tls",
+ "percent-encoding",
+ "pin-project-lite",
+ "serde",
+ "serde_json",
+ "serde_urlencoded",
+ "tokio",
+ "tokio-native-tls",
+ "tokio-util 0.6.9",
+ "url",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "web-sys",
+ "winreg",
+]
+
 [[package]]
 name = "rfd"
 version = "0.8.2"
@@ -3737,6 +3846,16 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "tokio-native-tls"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7d995660bd2b7f8c1568414c1126076c13fbb725c40112dc0120b78eb9b717b"
+dependencies = [
+ "native-tls",
+ "tokio",
+]
+
 [[package]]
 name = "tokio-rustls"
 version = "0.23.4"
@@ -3764,6 +3883,20 @@ dependencies = [
  "webpki-roots",
 ]
 
+[[package]]
+name = "tokio-util"
+version = "0.6.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9e99e1983e5d376cd8eb4b66604d2e99e79f5bd988c3055891dcd8c9e2604cc0"
+dependencies = [
+ "bytes",
+ "futures-core",
+ "futures-sink",
+ "log",
+ "pin-project-lite",
+ "tokio",
+]
+
 [[package]]
 name = "tokio-util"
 version = "0.7.1"
@@ -3775,6 +3908,7 @@ dependencies = [
  "futures-sink",
  "pin-project-lite",
  "tokio",
+ "tracing",
 ]
 
 [[package]]
@@ -4499,6 +4633,15 @@ version = "0.36.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c811ca4a8c853ef420abd8592ba53ddbbac90410fab6903b3e79972a631f7680"
 
+[[package]]
+name = "winreg"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "80d0f4e272c85def139476380b12f9ac60926689dd2e01d4923222f40580869d"
+dependencies = [
+ "winapi",
+]
+
 [[package]]
 name = "winres"
 version = "0.1.12"

src-tauri/Cargo.toml

@@ -24,6 +24,8 @@ tracing = "0.1.34"
 tokio-rustls = "0.23.4"
 tokio-tungstenite = "0.17.1"
 rustls-pemfile = "1.0.0"
+reqwest = { version = "0.11.3", features = ["stream"] }
+futures-util = "0.3.14"
 
 [features]
 # by default Tauri runs in production mode

src-tauri/src/downloader.rs

@@ -0,0 +1,43 @@
+use std::cmp::min;
+use std::fs::File;
+use std::io::Write;
+
+use futures_util::StreamExt;
+
+use tauri::{
+  command,
+  Event
+};
+
+// Lots of help from: https://gist.github.com/giuliano-oliveira/4d11d6b3bb003dba3a1b53f43d81b30d
+// and docs ofc
+
+#[tauri::command]
+pub async fn download_file(url: &str, path: &str) -> Result<(), String> {
+    // Reqwest setup
+    let res = reqwest::get(url).await.or(Err(format!("Failed to get {}", url)))?;
+    let total_size = res
+        .content_length()
+        .ok_or(format!("Failed to get content length from '{}'", &url))?;
+
+    // Create file path
+    let mut file = File::create(path).or(Err(format!("Failed to create file '{}'", path)))?;
+    let mut downloaded: u64 = 0;
+
+    // File stream
+    let mut stream = res.bytes_stream();
+
+    // Await chunks
+    while let Some(item) = stream.next().await {
+        let chunk = item.or(Err(format!("Error while downloading file")));
+        // Write chunk
+        file.write_all(&chunk)
+            .or(Err(format!("Error while writing to file")))?;
+        // New progress
+        let new = min(downloaded + (chunk.len() as u64), total_size);
+        downloaded = new;
+    }
+
+    // We are done
+    return Ok(());
+}

src/utils/download.ts

@@ -0,0 +1,5 @@
+export default class DownloadHandler {
+  constructor() {
+    console.log('AAAAAAAAAAAAAAAAAAAAA')
+  }
+}