use crate::{ server::{IndexData, PathItem, PathType, MAX_SUBPATHS_COUNT}, utils::encode_uri, }; use anyhow::Result; use chrono::{DateTime, Utc}; use xml::escape::escape_str_pcdata; pub fn detect_noscript(user_agent: &str) -> bool { [ "lynx/", "w3m/", "links ", "elinks/", "curl/", "wget/", "httpie/", "aria2/", ] .iter() .any(|v| user_agent.starts_with(v)) } pub fn generate_noscript_html(data: &IndexData) -> Result { let mut html = String::new(); let title = format!("Index of {}", escape_str_pcdata(&data.href)); html.push_str("\n"); html.push_str("\n"); html.push_str(&format!("{title}\n")); html.push_str( r#" "#, ); html.push_str("\n"); html.push_str("\n"); html.push_str(&format!("

{title}

\n")); html.push_str("\n"); html.push_str(" \n"); html.push_str(&format!(" {}\n", render_parent())); for path in &data.paths { html.push_str(&format!(" {}\n", render_path_item(path))); } html.push_str(" \n"); html.push_str("

\n"); html.push_str("\n"); Ok(html) } fn render_parent() -> String { let value = "../"; format!("{value}") } fn render_path_item(path: &PathItem) -> String { let mut href = encode_uri(&path.name); let mut name = escape_str_pcdata(&path.name).to_string(); if path.path_type.is_dir() { href.push_str("/?noscript"); name.push('/'); }; let mtime = format_mtime(path.mtime).unwrap_or_default(); let size = format_size(path.size, path.path_type); format!("{name}{mtime}{size}") } fn format_mtime(mtime: u64) -> Option { let datetime = DateTime::::from_timestamp_millis(mtime as _)?; Some(datetime.format("%Y-%m-%dT%H:%M:%S.%3fZ").to_string()) } fn format_size(size: u64, path_type: PathType) -> String { if path_type.is_dir() { let unit = if size == 1 { "item" } else { "items" }; let num = match size >= MAX_SUBPATHS_COUNT { true => format!(">{}", MAX_SUBPATHS_COUNT - 1), false => size.to_string(), }; format!("{num} {unit}") } else { if size == 0 { return "0 B".to_string(); } const UNITS: [&str; 5] = ["B", "KB", "MB", "GB", "TB"]; let i = (size as f64).log2() / 10.0; let i = i.floor() as usize; if i >= UNITS.len() { // Handle extremely large numbers beyond Terabytes return format!("{:.2} PB", size as f64 / 1024.0f64.powi(5)); } let size = size as f64 / 1024.0f64.powi(i as i32); format!("{:.2} {}", size, UNITS[i]) } }