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Facter directory listing into a function

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This commit is contained in:
Matt Brubeck 2020-12-27 12:11:38 -08:00
parent e4dacd1315
commit a007908248
1 changed files with 30 additions and 31 deletions
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61
src/main.rs
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@ -188,33 +188,9 @@ async fn send_response<W: Write + Unpin>(url: Url, stream: &mut W) -> Result {
// if the path ends with a slash or the path is empty, the links will work the same // if the path ends with a slash or the path is empty, the links will work the same
// without a redirect // without a redirect
path.push("index.gmi"); path.push("index.gmi");
if path.exists() { if !path.exists() && path.with_file_name(".directory-listing-ok").exists() {
// index file exists
} else if path.with_file_name(".directory-listing-ok").exists() {
// no index file, but directory listing allowed
path.pop(); path.pop();
log::info!("Listing directory {:?}", path); return list_directory(stream, &path).await;
let entries = std::fs::read_dir(path)?;
let listing = entries
.filter(Result::is_ok)
.map(Result::unwrap)
.map(|entry| {
// transform filenames into gemini link lines
let mut name = String::from("=> ");
name += &entry.file_name().to_string_lossy();
if entry.path().is_dir() {
// to avoid redirects link to directories with a trailing slash
name += "/";
}
name + "\n"
})
// filter out files starting with a dot
.filter(|entry| !entry.starts_with("=> ."))
.collect::<String>();
respond(stream, "20", &["text/gemini"]).await?;
stream.write_all(listing.as_bytes()).await?;
return Ok(());
} }
} else { } else {
// if client is not redirected, links may not work as expected without trailing slash // if client is not redirected, links may not work as expected without trailing slash
@ -227,11 +203,7 @@ async fn send_response<W: Write + Unpin>(url: Url, stream: &mut W) -> Result {
// Send header. // Send header.
if path.extension() == Some(OsStr::new("gmi")) { if path.extension() == Some(OsStr::new("gmi")) {
if let Some(lang) = ARGS.language.as_deref() { send_text_gemini_header(stream).await?;
respond(stream, "20", &["text/gemini;lang=", lang]).await?;
} else {
respond(stream, "20", &["text/gemini"]).await?;
}
} else { } else {
let mime = mime_guess::from_path(&path).first_or_octet_stream(); let mime = mime_guess::from_path(&path).first_or_octet_stream();
respond(stream, "20", &[mime.essence_str()]).await?; respond(stream, "20", &[mime.essence_str()]).await?;
@ -252,3 +224,30 @@ async fn respond<W: Write + Unpin>(stream: &mut W, status: &str, meta: &[&str])
stream.write_all(b"\r\n").await?; stream.write_all(b"\r\n").await?;
Ok(()) Ok(())
} }
async fn list_directory<W: Write + Unpin>(stream: &mut W, path: &Path) -> Result {
log::info!("Listing directory {:?}", path);
send_text_gemini_header(stream).await?;
for entry in std::fs::read_dir(path)? {
let entry = entry?;
let mut name = entry.file_name().into_string().or(Err("Non-Unicode filename"))?;
if name.starts_with('.') {
continue;
}
if entry.file_type()?.is_dir() {
name += "/";
}
stream.write_all(b"=> ").await?;
stream.write_all(name.as_bytes()).await?;
stream.write_all(b"\n").await?;
}
Ok(())
}
async fn send_text_gemini_header<W: Write + Unpin>(stream: &mut W) -> Result {
if let Some(lang) = ARGS.language.as_deref() {
respond(stream, "20", &["text/gemini;lang=", lang]).await
} else {
respond(stream, "20", &["text/gemini"]).await
}
}