Dwelling/files/index.js

119 lines
3.5 KiB
JavaScript

const fs = require("fs");
const path = require("path");
const { ENOENT, ECONNRESET } = require("constants");
const Koa = require("koa");
const koaPug = require("koa-pug");
const koaRouter = require("koa-router");
const config = require("./config");
const util = require("../shared/util");
const SIZE_UNITS = [ "B", "KiB", "MiB", "GiB" ];
function addFileSizeUnit(size) {
let i = 0;
for (; size > 1024; size /= 1024) ++i;
return [i > 0 ? size.toFixed(2) : size, SIZE_UNITS[i]];
}
function buildCurrentPathLink(path) {
let currentPath = `<a href="/">root</a>`;
if (path.endsWith("/"))
path = path.slice(1, path.length-1);
const path_parts = path.split("/");
for (let i = 0; i < path_parts.length; ++i) {
let lnk = "";
for (let j = 0; j < i+1; ++j)
lnk += `/${path_parts[j]}`;
currentPath += `/<a href="${encodeURI(lnk)}/">${path_parts[i]}</a>`;
}
return currentPath;
}
function sortFuncByNameField(a, b) {
return (a.name > b.name) ? 1 : (a.name < b.name) ? -1 : 0;
}
async function getDirectoryList(dir_path, orig_url) {
let directories = [];
let files = [];
let total_files_size = 0;
let directory = await fs.promises.opendir(dir_path);
for await (const dirent of directory) {
const stat = await fs.promises.stat(path.join(dir_path, dirent.name));
const [s, u] = addFileSizeUnit(stat.size);
if (stat.isDirectory())
directories.push({
name: dirent.name,
link: `${encodeURIComponent(dirent.name)}/`,
datetime: stat.mtime,
size: "DIR" });
else {
total_files_size += stat.size;
files.push({
name: dirent.name,
link: `/files${orig_url}${encodeURIComponent(dirent.name)}`,
datetime: stat.mtime,
size: `${s} ${u}` });
}
}
directories.sort(sortFuncByNameField);
files.sort(sortFuncByNameField);
return [directories.concat(files), directories.length, files.length,
addFileSizeUnit(total_files_size).join(' ')];
}
function setRoutes() {
return koaRouter().get('/(.*)?', async ctx => {
const file_path = path.join(config.share_path, decodeURI(ctx.originalUrl));
let stat = await fs.promises.stat(file_path);
if (stat.isDirectory()) {
const [items, total_directories, total_files, total_files_size]
= await getDirectoryList(file_path, decodeURI(ctx.originalUrl));
await ctx.render('index', {
title: "/ Files",
description: "File share.",
clientTZ: util.getClientTimezone(ctx),
main_site: util.getServiceByHost(ctx.header.host),
current_path: buildCurrentPathLink(decodeURI(ctx.originalUrl)),
total_files: total_files,
total_files_size: total_files_size,
total_directories: total_directories,
items: items });
}
});
}
const app = new Koa();
const pug = new koaPug({
viewPath: path.join(__dirname, "views"),
locals: {
moment: (date, tz) => util.datetime(date, util.formats.file_date, tz), },
app: app
});
app.proxy = true;
app
.use(setRoutes().routes())
// .on("error", err => { if (!err.code == ECONNRESET || !err.code == ENOENT) console.log(err.code); })
.listen(config.port, config.host);
console.log("Arav's dwelling / Files is up.");