Add HTTPS support to server

Cargo.toml

@@ -35,6 +35,8 @@ owo-colors = "4"
 rand = "0.8.5"
 regex = "1.10.6"
 reqwest = { version = "0.13.3", features = ["blocking", "http2"] }
+rustls = { version = "0.23.40", features = ["ring"] }
+rustls-acme = { version = "0.15.2", features = ["axum"] }
 serde = { version = "1.0.209", features = ["derive"] }
 serde_ignored = "0.1.14"
 serde_json = "1.0.127"
@@ -43,6 +45,7 @@ serde_yaml = "0.9.34"
 sha2 = "0.10"
 snafu = "0.8.4"
 strum = { version = "0.27.2", features = ["derive"] }
+sysinfo = { version = "0.39.1", default-features = false, features = ["system"] }
 tempfile = "3.24.0"
 tokio = { version = "1.52.3", features = ["fs", "io-util", "macros", "rt-multi-thread"] }
 tokio-util = { version = "0.7.18", features = ["io"] }

README.md

@@ -149,13 +149,24 @@ filepack verify --print | jq
 
 ### `filepack serve`
 
-Start an HTTP file server. The filepack server has no authentication or disk
-usage quota and should be considered experimental.
+Start HTTP server. The filepack server has no authentication or disk usage
+quota and should be considered experimental.
+
+To serve HTTP on `0.0.0.0:80`:
+
+```shell
+filepack serve
+```
+
+To serve HTTPS on `0.0.0.0:443` with an ACME TLS certificate using the hostname
+as the domain:
 
 ```shell
-filepack serve --address 0.0.0.0:80
+filepack serve --https
 ```
 
+See `filepack serve --help` for more details.
+
 Files can be uploaded with `filepack upload` and downloaded with
 `filepack download`.
 

src/error.rs

@@ -3,6 +3,8 @@ use super::*;
 #[derive(Debug, Snafu)]
 #[snafu(context(suffix(false)), visibility(pub(crate)))]
 pub enum Error {
+  #[snafu(display("no hostname found for use as ACME domain"))]
+  AcmeHostname { backtrace: Option<Backtrace> },
   #[snafu(display("file hash {actual} not equal to expected {expected}"))]
   Assert {
     backtrace: Option<Backtrace>,
@@ -311,6 +313,8 @@ pub enum Error {
     status: StatusCode,
     url: Url,
   },
+  #[snafu(display("failed to install rustls ring crypto provider"))]
+  RustlsProvider { backtrace: Option<Backtrace> },
   #[snafu(display("server failed"))]
   Serve {
     backtrace: Option<Backtrace>,

src/server.rs

@@ -6,10 +6,6 @@ pub(crate) struct Server {
 }
 
 impl Server {
-  pub(crate) fn new(options: Options) -> Result<Self> {
-    Self::with_data_dir(&options.data_dir()?)
-  }
-
   pub(crate) async fn open_file(&self, hash: Hash) -> ServerResult<(tokio::fs::File, u64)> {
     let path = self.files.join(hash.to_string());