commit 1c97c010969ea80c771be31a7a99a4a80b9aff8c
Author: sigoden <sigoden@gmail.com>
Date:   Thu May 26 16:17:55 2022 +0800

    init commit

diff --git a/.gitignore b/.gitignore
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+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 = "windows-sys"
+version = "0.36.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ea04155a16a59f9eab786fe12a4a450e75cdb175f9e0d80da1e17db09f55b8d2"
+dependencies = [
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.36.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9bb8c3fd39ade2d67e9874ac4f3db21f0d710bee00fe7cab16949ec184eeaa47"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.36.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "180e6ccf01daf4c426b846dfc66db1fc518f074baa793aa7d9b9aaeffad6a3b6"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.36.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2e7917148b2812d1eeafaeb22a97e4813dfa60a3f8f78ebe204bcc88f12f024"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.36.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4dcd171b8776c41b97521e5da127a2d86ad280114807d0b2ab1e462bc764d9e1"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.36.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c811ca4a8c853ef420abd8592ba53ddbbac90410fab6903b3e79972a631f7680"
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..a318849
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,25 @@
+[package]
+name = "duf2"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+clap = { version = "3", default-features = false, features = ["std", "cargo"] }
+tokio = { version = "1", features = ["rt-multi-thread", "macros", "fs", "io-util"]}
+hyper = { version = "0.14", features = ["http1", "server", "tcp", "stream"] }
+percent-encoding = "2.1"
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+tokio-util = { version = "0.7", features = ["codec", "io-util"] }
+futures = "0.3"
+
+[dev-dependencies]
+tempfile = "3"
+once_cell = "1"
+
+[profile.release]
+lto = true
+strip = true
+opt-level = "z"
diff --git a/src/args.rs b/src/args.rs
new file mode 100644
index 0000000..bae2811
--- /dev/null
+++ b/src/args.rs
@@ -0,0 +1,102 @@
+use clap::crate_description;
+use clap::{Arg, ArgMatches};
+use std::env;
+use std::fs::canonicalize;
+use std::net::SocketAddr;
+use std::path::{Path, PathBuf};
+
+use crate::BoxResult;
+
+const ABOUT: &str = concat!("\n", crate_description!()); // Add extra newline.
+
+fn app() -> clap::Command<'static> {
+    let arg_port = Arg::new("port")
+        .short('p')
+        .long("port")
+        .default_value("5000")
+        .help("Specify port to listen on")
+        .value_name("port");
+
+    let arg_address = Arg::new("address")
+        .short('b')
+        .long("bind")
+        .default_value("127.0.0.1")
+        .help("Specify bind address")
+        .value_name("address");
+
+    let arg_path = Arg::new("path")
+        .default_value(".")
+        .allow_invalid_utf8(true)
+        .help("Path to a directory for serving files");
+
+    clap::command!()
+        .about(ABOUT)
+        .arg(arg_address)
+        .arg(arg_port)
+        .arg(arg_path)
+}
+
+pub fn matches() -> ArgMatches {
+    app().get_matches()
+}
+
+#[derive(Debug, Clone, Eq, PartialEq)]
+pub struct Args {
+    pub address: String,
+    pub port: u16,
+    pub path: PathBuf,
+}
+
+impl Args {
+    /// Parse command-line arguments.
+    ///
+    /// If a parsing error ocurred, exit the process and print out informative
+    /// error message to user.
+    pub fn parse(matches: ArgMatches) -> BoxResult<Args> {
+        let address = matches.value_of("address").unwrap_or_default().to_owned();
+        let port = matches.value_of_t::<u16>("port")?;
+        let path = matches.value_of_os("path").unwrap_or_default();
+        let path = Args::parse_path(path)?;
+
+        Ok(Args {
+            address,
+            port,
+            path,
+        })
+    }
+
+    /// Parse path.
+    fn parse_path<P: AsRef<Path>>(path: P) -> BoxResult<PathBuf> {
+        let path = path.as_ref();
+        if !path.exists() {
+            bail!("error: path \"{}\" doesn't exist", path.display());
+        }
+
+        env::current_dir()
+            .and_then(|mut p| {
+                p.push(path); // If path is absolute, it replaces the current path.
+                canonicalize(p)
+            })
+            .or_else(|err| {
+                bail!(
+                    "error: failed to access path \"{}\": {}",
+                    path.display(),
+                    err,
+                )
+            })
+    }
+
+    /// Construct socket address from arguments.
+    pub fn address(&self) -> BoxResult<SocketAddr> {
+        format!("{}:{}", self.address, self.port)
+            .parse()
+            .or_else(|err| {
+                bail!(
+                    "error: invalid address {}:{} : {}",
+                    self.address,
+                    self.port,
+                    err,
+                )
+            })
+    }
+}
diff --git a/src/index.css b/src/index.css
new file mode 100644
index 0000000..d92d9c6
--- /dev/null
+++ b/src/index.css
@@ -0,0 +1,102 @@
+html {
+  font-family: -apple-system,BlinkMacSystemFont,Helvetica,Arial,sans-serif;
+  line-height: 1.5;
+  color: #24292e;
+}
+
+.head {
+  display: flex;
+  align-items: baseline;
+  padding: 2.5em 2.5em 0;
+}
+
+.head input {
+  display: none;
+}
+
+.breadcrumb {
+  font-size: 1.25em;
+}
+
+.breadcrumb > a {
+  color: #0366d6;
+  text-decoration: none;
+}
+
+.breadcrumb > a:hover {
+  text-decoration: underline;
+}
+
+/* final breadcrumb */
+.breadcrumb > b {
+  color: #24292e;
+}
+
+.breadcrumb > .separator {
+  color: #586069;
+  padding: 0 0.25em;
+}
+
+.breadcrumb svg {
+  height: 100%;
+  fill: rgba(3,47,98,0.5);
+  padding-right: 0.5em;
+  padding-left: 0.5em;
+}
+
+.action {
+  cursor: pointer;
+}
+
+.main {
+  padding: 0 2.5em;
+}
+
+.main th {
+  text-align: left;
+  font-weight: unset;
+  color: #5c5c5c;
+}
+
+.main .cell-name {
+  max-width: 300px;
+}
+
+.main .cell-size {
+  text-align: right;
+  width: 80px;
+}
+
+.path svg {
+  height: 100%;
+  fill: rgba(3,47,98,0.5);
+  padding-right: 0.5em;
+}
+
+.path {
+  display: flex;
+  list-style: none;
+}
+
+.path a {
+  color: #0366d6;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  overflow: hidden;
+  display: block;
+  text-decoration: none;
+}
+
+.path a:hover {
+  text-decoration: underline;
+}
+
+.uploaders {
+  display: flex;
+  flex-wrap: wrap;
+  padding: 0.5em 0;
+}
+
+.uploader {
+  padding-right: 2em;
+}
\ No newline at end of file
diff --git a/src/index.html b/src/index.html
new file mode 100644
index 0000000..2c67065
--- /dev/null
+++ b/src/index.html
@@ -0,0 +1,175 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+  <meta charset="utf-8" />
+  <meta name="viewport" content="width=device-width" />
+  <title>Duf</title>
+  __STYLE__
+</head>
+<body>
+  <div class="head">
+    <div class="breadcrumb"></div>
+    <div class="action" title="Upload file">
+      <label for="file">
+        <svg viewBox="0 0 384.97 384.97" width="14" height="14"><path d="M372.939,264.641c-6.641,0-12.03,5.39-12.03,12.03v84.212H24.061v-84.212c0-6.641-5.39-12.03-12.03-12.03 S0,270.031,0,276.671v96.242c0,6.641,5.39,12.03,12.03,12.03h360.909c6.641,0,12.03-5.39,12.03-12.03v-96.242 C384.97,270.019,379.58,264.641,372.939,264.641z"></path><path d="M117.067,103.507l63.46-62.558v235.71c0,6.641,5.438,12.03,12.151,12.03c6.713,0,12.151-5.39,12.151-12.03V40.95 l63.46,62.558c4.74,4.704,12.439,4.704,17.179,0c4.74-4.704,4.752-12.319,0-17.011l-84.2-82.997 c-4.692-4.656-12.584-4.608-17.191,0L99.888,86.496c-4.752,4.704-4.74,12.319,0,17.011 C104.628,108.211,112.327,108.211,117.067,103.507z"></path></svg>
+      </label>
+      <input type="file" id="file" name="file" multiple>
+    </div>
+  </div>
+  <div class="main">
+    <div class="uploaders">
+    </div>
+    <table>
+      <thead>
+        <tr>
+          <th class="cell-name">Name</th>
+          <th class="cell-mtime">Date modify</th>
+          <th class="cell-size">Size</th>
+        </tr>
+      </thead>
+      <tbody>
+      </tbody>
+    </table>
+  </div>
+  <script>
+
+    const $tbody = document.querySelector(".main tbody");
+    const $breadcrumb = document.querySelector(".breadcrumb");
+    const $fileInput = document.getElementById("file");
+    const $uploaders = document.querySelector(".uploaders");
+    const { breadcrumb, paths } = __DATA__;
+    let uploaderIdx = 0;
+
+    class Uploader {
+      idx = 0;
+      file;
+      path;
+      $elem;
+      constructor(idx, file) {
+        this.idx = idx;
+        this.file = file;
+        this.path = location.pathname + "/" + file.name;
+      }
+
+      upload() {
+        const { file, idx, path } = this;
+        $uploaders.insertAdjacentHTML("beforeend", `
+      <div class="uploader path">
+        <div><svg height="16" viewBox="0 0 12 16" width="12"><path fill-rule="evenodd" d="M6 5H2V4h4v1zM2 8h7V7H2v1zm0 2h7V9H2v1zm0 2h7v-1H2v1zm10-7.5V14c0 .55-.45 1-1 1H1c-.55 0-1-.45-1-1V2c0-.55.45-1 1-1h7.5L12 4.5zM11 5L8 2H1v12h10V5z"></path></svg></div>
+        <a href="${path}" id="file${idx}">${file.name} (0%)</a>
+      </div>`);
+        this.$elem = document.getElementById(`file${idx}`);
+
+        const ajax = new XMLHttpRequest();
+        ajax.upload.addEventListener("progress", e => this.progress(e), false);
+        ajax.addEventListener("load", e => this.complete(e), false);
+        ajax.addEventListener("error", e => this.error(e), false);
+        ajax.addEventListener("abort", e => this.abort(e), false);
+        ajax.open("PUT", path);
+        ajax.send(file);
+      }
+
+      progress(event) {
+        const percent = (event.loaded / event.total) * 100;
+        this.$elem.innerHTML = `${this.file.name} (${percent.toFixed(2)}%)`;
+      }
+
+      complete(event) {
+        this.$elem.innerHTML = `${this.file.name}`;
+      }
+
+      error(event) {
+        this.$elem.innerHTML = `${this.file.name} (x)`;
+      }
+      
+      abort(event) {
+        this.$elem.innerHTML = `${this.file.name} (x)`;
+      }
+    }
+
+    function addBreadcrumb(value) {
+      const parts = value.split("/").filter(v => !!v);
+      const len = parts.length;
+      let path = "";
+      for (let i = 0; i < len; i++) {
+        const name = parts[i];
+        if (i > 0) {
+          path  += "/" + name;
+        }
+        if (i === len - 1) {
+          $breadcrumb.insertAdjacentHTML("beforeend", `<b>${name}</b>`);
+        } else if (i === 0) {
+          $breadcrumb.insertAdjacentHTML("beforeend", `<a href="/"><b>${name}</b></a>`);
+        } else {
+          $breadcrumb.insertAdjacentHTML("beforeend", `<a href="${encodeURI(path)}">${name}</a>`);
+        }
+        $breadcrumb.insertAdjacentHTML("beforeend", `<span class="separator">/</span>`);
+      }
+    }
+
+    function addFile(file) {
+      $tbody.insertAdjacentHTML("beforeend", `
+  <tr>
+    <td class="path cell-name">
+      <div>${getSvg(file.path_type)}</div>
+      <a href="${encodeURI(file.path)}" title="${file.name}">${file.name}</a>
+    </td>
+    <td class="cell-mtime">${formatMtime(file.mtime)}</td>
+    <td class="cell-size">${formatSize(file.size)}</td>
+  </tr>
+`)
+    }
+
+    function getSvg(path_type) {
+      switch (path_type) {
+        case "Dir":
+          return `<svg height="16" viewBox="0 0 14 16" width="14"><path fill-rule="evenodd" d="M13 4H7V3c0-.66-.31-1-1-1H1c-.55 0-1 .45-1 1v10c0 .55.45 1 1 1h12c.55 0 1-.45 1-1V5c0-.55-.45-1-1-1zM6 4H1V3h5v1z"></path></svg>`;
+        case "File":
+          return `<svg height="16" viewBox="0 0 12 16" width="12"><path fill-rule="evenodd" d="M6 5H2V4h4v1zM2 8h7V7H2v1zm0 2h7V9H2v1zm0 2h7v-1H2v1zm10-7.5V14c0 .55-.45 1-1 1H1c-.55 0-1-.45-1-1V2c0-.55.45-1 1-1h7.5L12 4.5zM11 5L8 2H1v12h10V5z"></path></svg>`;
+        case "SymlinkDir":
+          return `<svg height="16" viewBox="0 0 14 16" width="14"><path fill-rule="evenodd" d="M13 4H7V3c0-.66-.31-1-1-1H1c-.55 0-1 .45-1 1v10c0 .55.45 1 1 1h12c.55 0 1-.45 1-1V5c0-.55-.45-1-1-1zM1 3h5v1H1V3zm6 9v-2c-.98-.02-1.84.22-2.55.7-.71.48-1.19 1.25-1.45 2.3.02-1.64.39-2.88 1.13-3.73C4.86 8.43 5.82 8 7.01 8V6l4 3-4 3H7z"></path></svg>`;
+        default:
+          return `<svg height="16" viewBox="0 0 12 16" width="12"><path fill-rule="evenodd" d="M8.5 1H1c-.55 0-1 .45-1 1v12c0 .55.45 1 1 1h10c.55 0 1-.45 1-1V4.5L8.5 1zM11 14H1V2h7l3 3v9zM6 4.5l4 3-4 3v-2c-.98-.02-1.84.22-2.55.7-.71.48-1.19 1.25-1.45 2.3.02-1.64.39-2.88 1.13-3.73.73-.84 1.69-1.27 2.88-1.27v-2H6z"></path></svg>`;
+      }
+    }
+
+    function formatMtime(mtime) {
+      if (!mtime) return ""
+      const date = new Date(mtime);
+      const year = date.getFullYear();
+      const month = padZero(date.getMonth() + 1, 2);
+      const day = padZero(date.getDate(), 2);
+      const hours = padZero(date.getHours(), 2);
+      const minutes = padZero(date.getMinutes(), 2);
+      return `${year}/${month}/${day} ${hours}:${minutes}`;
+    }
+
+    function padZero(value, size) {
+      return ("0".repeat(size) + value).slice(-1 * size)
+    }
+
+    function formatSize(size) {
+      if (!size) return ""
+      const sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB'];
+      if (size == 0) return '0 Byte';
+      const i = parseInt(Math.floor(Math.log(size) / Math.log(1024)));
+      return Math.round(size / Math.pow(1024, i), 2) + ' ' + sizes[i];
+    }
+
+
+    document.addEventListener('DOMContentLoaded', () => {
+      addBreadcrumb(breadcrumb);
+      paths.forEach(file => addFile(file));
+      $fileInput.addEventListener("change", e => {
+        const files = e.target.files;
+        for (const file of files) {
+          uploaderIdx += 1;
+          const uploader = new Uploader(uploaderIdx, file);
+          uploader.upload();
+        }
+      });
+    });
+  </script>
+</body>
+</html>
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..5e5f174
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,27 @@
+macro_rules! bail {
+    ($($tt:tt)*) => {
+        return Err(From::from(format!($($tt)*)))
+    }
+}
+
+mod args;
+mod server;
+
+pub type BoxResult<T> = Result<T, Box<dyn std::error::Error>>;
+
+use crate::args::{matches, Args};
+use crate::server::serve;
+
+#[tokio::main]
+async fn main() {
+    Args::parse(matches())
+        .map(serve)
+        .unwrap_or_else(handle_err)
+        .await
+        .unwrap_or_else(handle_err);
+}
+
+fn handle_err<T>(err: Box<dyn std::error::Error>) -> T {
+    eprintln!("Server error: {}", err);
+    std::process::exit(1);
+}
diff --git a/src/server.rs b/src/server.rs
new file mode 100644
index 0000000..8433203
--- /dev/null
+++ b/src/server.rs
@@ -0,0 +1,239 @@
+use crate::{Args, BoxResult};
+
+use futures::TryStreamExt;
+use hyper::service::{make_service_fn, service_fn};
+use hyper::{Body, Method, StatusCode};
+use percent_encoding::percent_decode;
+use serde::Serialize;
+use std::convert::Infallible;
+use std::path::{Path, PathBuf};
+use std::sync::Arc;
+use std::time::SystemTime;
+use tokio::{fs, io};
+use tokio_util::codec::{BytesCodec, FramedRead};
+use tokio_util::io::StreamReader;
+
+type Request = hyper::Request<Body>;
+type Response = hyper::Response<Body>;
+
+macro_rules! status_code {
+    ($status:expr) => {
+        hyper::Response::builder()
+            .status($status)
+            .body($status.canonical_reason().unwrap_or_default().into())
+            .unwrap()
+    };
+}
+
+const INDEX_HTML: &str = include_str!("index.html");
+const INDEX_CSS: &str = include_str!("index.css");
+
+pub async fn serve(args: Args) -> BoxResult<()> {
+    let address = args.address()?;
+    let inner = Arc::new(InnerService::new(args));
+    let make_svc = make_service_fn(move |_| {
+        let inner = inner.clone();
+        async {
+            Ok::<_, Infallible>(service_fn(move |req| {
+                let inner = inner.clone();
+                inner.handle(req)
+            }))
+        }
+    });
+
+    let server = hyper::Server::try_bind(&address)?.serve(make_svc);
+    let address = server.local_addr();
+    eprintln!("Files served on http://{}", address);
+    server.await?;
+
+    Ok(())
+}
+
+struct InnerService {
+    args: Args,
+}
+
+impl InnerService {
+    pub fn new(args: Args) -> Self {
+        Self { args }
+    }
+
+    pub async fn handle(self: Arc<Self>, req: Request) -> Result<Response, hyper::Error> {
+        let res = if req.method() == Method::GET {
+            self.handle_static(req).await
+        } else if req.method() == Method::PUT {
+            self.handle_upload(req).await
+        } else {
+            return Ok(status_code!(StatusCode::NOT_FOUND));
+        };
+        Ok(res.unwrap_or_else(|_| status_code!(StatusCode::INTERNAL_SERVER_ERROR)))
+    }
+
+    async fn handle_static(&self, req: Request) -> BoxResult<Response> {
+        let path = match self.get_file_path(req.uri().path())? {
+            Some(path) => path,
+            None => return Ok(status_code!(StatusCode::FORBIDDEN)),
+        };
+        match fs::metadata(&path).await {
+            Ok(meta) => {
+                if meta.is_dir() {
+                    self.handle_send_dir(path.as_path()).await
+                } else {
+                    self.handle_send_file(path.as_path()).await
+                }
+            }
+            Err(_) => return Ok(status_code!(StatusCode::NOT_FOUND)),
+        }
+    }
+
+    async fn handle_upload(&self, mut req: Request) -> BoxResult<Response> {
+        let path = match self.get_file_path(req.uri().path())? {
+            Some(path) => path,
+            None => return Ok(status_code!(StatusCode::FORBIDDEN)),
+        };
+
+        if !fs::metadata(&path.parent().unwrap()).await?.is_dir() {
+            return Ok(status_code!(StatusCode::FORBIDDEN));
+        }
+
+        let mut file = fs::File::create(path).await?;
+
+        let body_with_io_error = req
+            .body_mut()
+            .map_err(|err| io::Error::new(io::ErrorKind::Other, err));
+
+        let body_reader = StreamReader::new(body_with_io_error);
+
+        futures::pin_mut!(body_reader);
+
+        io::copy(&mut body_reader, &mut file).await?;
+
+        return Ok(status_code!(StatusCode::OK));
+    }
+
+    async fn handle_send_dir(&self, path: &Path) -> BoxResult<Response> {
+        let base_path = &self.args.path;
+        let mut rd = fs::read_dir(path).await?;
+        let mut paths: Vec<PathItem> = vec![];
+        if self.args.path != path {
+            paths.push(PathItem {
+                path_type: PathType::Dir,
+                name: "..".to_owned(),
+                path: format!(
+                    "/{}",
+                    normalize_path(path.parent().unwrap().strip_prefix(base_path).unwrap())
+                ),
+                mtime: None,
+                size: None,
+            })
+        }
+        while let Some(entry) = rd.next_entry().await? {
+            let entry_path = entry.path();
+            let rel_path = entry_path.strip_prefix(base_path).unwrap();
+            let meta = fs::metadata(&entry_path).await?;
+            let s_meta = fs::symlink_metadata(&entry_path).await?;
+            let is_dir = meta.is_dir();
+            let is_symlink = s_meta.file_type().is_symlink();
+            let path_type = match (is_symlink, is_dir) {
+                (true, true) => PathType::SymlinkDir,
+                (false, true) => PathType::Dir,
+                (true, false) => PathType::SymlinkFile,
+                (false, false) => PathType::File,
+            };
+            let mtime = meta
+                .modified()?
+                .duration_since(SystemTime::UNIX_EPOCH)
+                .ok()
+                .map(|v| v.as_millis() as u64);
+            let size = match path_type {
+                PathType::Dir | PathType::SymlinkDir => None,
+                PathType::File | PathType::SymlinkFile => Some(meta.len()),
+            };
+            let name = rel_path
+                .file_name()
+                .and_then(|v| v.to_str())
+                .unwrap_or_default()
+                .to_owned();
+            paths.push(PathItem {
+                path_type,
+                name,
+                path: format!("/{}", normalize_path(rel_path)),
+                mtime,
+                size,
+            })
+        }
+
+        paths.sort_unstable();
+        let breadcrumb = self.get_breadcrumb(path);
+        let data = SendDirData { breadcrumb, paths };
+        let data = serde_json::to_string(&data).unwrap();
+
+        let mut output =
+            INDEX_HTML.replace("__STYLE__", &format!("<style>\n{}</style>", INDEX_CSS));
+        output = output.replace("__DATA__", &data);
+
+        Ok(hyper::Response::builder().body(output.into()).unwrap())
+    }
+
+    async fn handle_send_file(&self, path: &Path) -> BoxResult<Response> {
+        let file = fs::File::open(path).await?;
+        let stream = FramedRead::new(file, BytesCodec::new());
+        let body = Body::wrap_stream(stream);
+        Ok(Response::new(body))
+    }
+
+    fn get_breadcrumb(&self, path: &Path) -> String {
+        let path = match self.args.path.parent() {
+            Some(p) => path.strip_prefix(p).unwrap(),
+            None => path,
+        };
+        normalize_path(path)
+    }
+
+    fn get_file_path(&self, path: &str) -> BoxResult<Option<PathBuf>> {
+        let decoded_path = percent_decode(path[1..].as_bytes()).decode_utf8()?;
+        let slashes_switched = if cfg!(windows) {
+            decoded_path.replace('/', "\\")
+        } else {
+            decoded_path.into_owned()
+        };
+        let path = self.args.path.join(&slashes_switched);
+        if path.starts_with(&self.args.path) {
+            Ok(Some(path))
+        } else {
+            Ok(None)
+        }
+    }
+}
+
+#[derive(Debug, Serialize, Eq, PartialEq, Ord, PartialOrd)]
+struct SendDirData {
+    breadcrumb: String,
+    paths: Vec<PathItem>,
+}
+
+#[derive(Debug, Serialize, Eq, PartialEq, Ord, PartialOrd)]
+struct PathItem {
+    path_type: PathType,
+    name: String,
+    path: String,
+    mtime: Option<u64>,
+    size: Option<u64>,
+}
+
+#[derive(Debug, Serialize, Eq, PartialEq, Ord, PartialOrd)]
+enum PathType {
+    Dir,
+    SymlinkDir,
+    File,
+    SymlinkFile,
+}
+
+fn normalize_path<P: AsRef<Path>>(path: P) -> String {
+    let path = path.as_ref().to_str().unwrap_or_default();
+    if cfg!(windows) {
+        path.replace('\\', "/")
+    } else {
+        path.to_string()
+    }
+}