It works

Cargo.lock

@@ -184,6 +184,12 @@ version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4358a9e11b9a09cf52383b451b49a169e8d797b68aa02301ff586d70d9661ea3"
 
+[[package]]
+name = "either"
+version = "1.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bb1f6b1ce1c140482ea30ddd3335fc0024ac7ee112895426e0a629a6c20adfe3"
+
 [[package]]
 name = "encoding_rs"
 version = "0.8.23"
@@ -256,6 +262,7 @@ dependencies = [
  "env_logger",
  "futures",
  "futures-intrusive",
+ "itertools",
  "libc",
  "log",
  "percent-encoding",
@@ -525,6 +532,15 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "itertools"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "284f18f85651fe11e8a991b2adb42cb078325c996ed026d994719efcfca1d54b"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "itoa"
 version = "0.4.5"

Cargo.toml

@@ -33,6 +33,7 @@ size_format = "1.0"
 base64 = "0.12"
 ctrlc = "3.1"
 config = "0.9"
+itertools = "*"
 
 [dev-dependencies.tokio]
 version = "0.2"

src/http.rs

@@ -66,14 +66,15 @@ impl HTTP {
             .await?
             .json::<Vec<RemoteEntry>>()
             .await?;
-        info!("Found {} entries into '{}'", resp.len(), path.display());
+        debug!("Found {} entries into '{}'", resp.len(), path.display());
         Ok(resp)
     }
 
     pub async fn read(&self, path: PathBuf, size: usize, offset: usize) -> Result<Vec<u8>, Error> {
         debug!("Reading path '{}/{}'", self.server, path.display());
         let mut headers = header::HeaderMap::new();
-        let range = format!("bytes={}-{}", offset, { offset + size });
+        let range = format!("bytes={}-{}", offset, { offset + size - 1 });
+        info!("range = {:?}", range);
         headers.insert(
             header::RANGE,
             header::HeaderValue::from_str(range.as_str()).unwrap(),

src/main.rs

@@ -3,10 +3,12 @@ use std::path::PathBuf;
 extern crate log;
 use env_logger::Env;
 use std::process;
+use std::ffi::OsStr;
 
 mod config;
 mod filesystem;
 mod http;
+use itertools::Itertools;
 
 #[tokio::main]
 async fn main() -> Result<(), std::io::Error> {
@@ -22,10 +24,20 @@ async fn main() -> Result<(), std::io::Error> {
         error!("The mountpoint must be a directory");
         process::exit(0x0004);
     }
+    let options = [
+        "ro",
+        "fsname=furumi-http",
+        // "sync_read",
+        "auto_unmount",
+        "allow_other",
+    ].iter().join(",");
 
     let memfs = filesystem::MemFS::new(&cfg);
     memfs.fetch_remote(PathBuf::from("/"), 1).await;
-    polyfuse_tokio::mount(memfs, mountpoint, &[]).await?;
+    polyfuse_tokio::mount(memfs, mountpoint, &[
+        "-o".as_ref(),
+        options.as_ref(),
+    ],).await?;
 
     Ok(())
 }