datatrash/src/template.rs

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Rust
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use std::{cmp, io::ErrorKind};
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use actix_web::HttpRequest;
use chrono::Duration;
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use tokio::fs;
use crate::config::Config;
const INDEX_HTML: &str = include_str!("../template/index.html");
const AUTH_HIDE_JS: &str = include_str!("../template/auth-hide.js");
const AUTH_SNIPPET_HTML: &str = include_str!("../snippet/auth.html.snippet");
const MAX_SIZE_SNIPPET_HTML: &str = include_str!("../snippet/max_size.html.snippet");
pub async fn write_prefillable_templates(config: &Config) {
let index_html = build_index_html(config);
let auth_hide_js = build_auth_hide_js(config);
let index_path = config.static_dir.join("index.html");
let auth_hide_path = config.static_dir.join("auth-hide.js");
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fs::write(index_path, index_html)
.await
.expect("could not write index.html to static folder");
if let Some(auth_hide_js) = auth_hide_js {
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fs::write(auth_hide_path, auth_hide_js)
.await
.expect("could not write auth-hide.js to static folder");
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} else {
match fs::remove_file(auth_hide_path).await {
Err(err) if err.kind() == ErrorKind::NotFound => {}
r => r.expect("could not delete auth-hide.js from static folder"),
}
}
}
fn build_index_html(config: &Config) -> String {
let auth_snippet = config
.no_auth_limits
.as_ref()
.map_or("", |_| AUTH_SNIPPET_HTML);
let max_size_snippet = config
.max_file_size
.as_ref()
.map_or("", |_| MAX_SIZE_SNIPPET_HTML);
INDEX_HTML
.replace("{max_size_snippet}", max_size_snippet)
.replace(
"{max_size}",
&render_file_size(config.max_file_size.unwrap_or(0)),
)
.replace("{auth_snippet}", auth_snippet)
.replace(
"{auth_time}",
&config
.no_auth_limits
.as_ref()
.map(|limit| limit.max_time)
.map_or("".into(), render_duration),
)
.replace(
"{auth_large_time}",
&config
.no_auth_limits
.as_ref()
.map(|limit| limit.large_file_max_time)
.map_or("".into(), render_duration),
)
.replace(
"{auth_large_size}",
&config
.no_auth_limits
.as_ref()
.map(|limit| limit.large_file_size)
.map_or("".into(), render_file_size),
)
}
fn render_file_size(size: u64) -> String {
let magnitude = cmp::min((size as f64).log(1024.0) as u32, 5);
let prefix = ["", "ki", "Mi", "Gi", "Ti", "Pi"][magnitude as usize];
let value = size / (1024_u64.pow(magnitude));
format!("{}{}B", value, prefix)
}
fn render_duration(duration: Duration) -> String {
let days = duration.num_days();
let hours = duration.num_hours() % 24;
let minutes = duration.num_minutes() % 60;
let seconds = duration.num_seconds() % 60;
let mut elements = vec![];
if let Some(name) = pluralize(days, "tag", "e") {
elements.push(name);
}
if let Some(name) = pluralize(hours, "stunde", "n") {
elements.push(name);
}
if let Some(name) = pluralize(minutes, "minute", "n") {
elements.push(name);
}
if let Some(name) = pluralize(seconds, "sekunde", "n") {
elements.push(name);
}
elements.join("+")
}
fn pluralize(number: i64, word: &str, suffix: &str) -> Option<String> {
match number {
0 => None,
1 => Some(format!("{} {}", number, word)),
_ => Some(format!("{} {}{}", number, word, suffix)),
}
}
fn build_auth_hide_js(config: &Config) -> Option<String> {
if let Some(no_auth_limits) = &config.no_auth_limits {
let auth_hide_js = AUTH_HIDE_JS
.replace(
"{no_auth_max_time}",
&no_auth_limits.max_time.num_seconds().to_string(),
)
.replace(
"{no_auth_large_file_max_time}",
&no_auth_limits.large_file_max_time.num_seconds().to_string(),
)
.replace(
"{no_auth_large_file_size}",
&no_auth_limits.large_file_size.to_string(),
);
Some(auth_hide_js)
// Ok(HttpResponse::Ok()
// .content_type("application/javascript")
// .body(auth_hide_js))
} else {
None
// Err(error::ErrorNotFound("file not found"))
}
}
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pub fn get_host_url(req: &HttpRequest) -> String {
let conn = req.connection_info();
format!("{}://{}", conn.scheme(), conn.host())
}