ztimson/zim-utils
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Decompression caching and preview links
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This commit is contained in:
Zakary Timson
2026-08-22 16:52:07 -04:00
parent aedb117002
commit ffdca81c78
6 changed files with 206 additions and 54 deletions
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18
src/catalog.js
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@@ -1,11 +1,11 @@
import {fuzzyMatch} from './utils.js';
import {decodeHtml} from '@ztimson/utils';
export const CATALOG_URL = 'https://library.kiwix.org/catalog/v2/entries';
export const CATALOG_URL = 'https://library.kiwix.org';
const PAGE_SIZE = 100;
function parseEntries(xml, baseUrl = 'https://library.kiwix.org') {
function parseEntries(xml, catalog = CATALOG_URL) {
const blocks = xml.match(/<entry>[\s\S]*?<\/entry>/g) || [];
return blocks.map(b => {
const grab = re => (b.match(re) || [])[1] || '';
@@ -14,29 +14,31 @@ function parseEntries(xml, baseUrl = 'https://library.kiwix.org') {
|| b.match(/<link[^>]*type=["']image\/[^"']*["'][^>]*href=["']([^"']+)["']/);
let tags = grab(/<tags>([^<]*)<\/tags>/);
if(tags) tags = tags.split(';');
const name = grab(/<name>([^<]*)<\/name>/);
return {
id: grab(/<id>([^<]*)<\/id>/),
title: decodeHtml(grab(/<title>([^<]*)<\/title>/)),
updated: new Date(grab(/<updated>([^<]*)<\/updated>/)),
summary: decodeHtml(grab(/<summary>([^<]*)<\/summary>/)),
language: grab(/<language>([^<]*)<\/language>/),
name: grab(/<name>([^<]*)<\/name>/),
name,
category: grab(/<category>([^<]*)<\/category>/),
tags,
mediaCount: Number(grab(/<mediaCount>([^<]*)<\/mediaCount>/)) || 0,
author: grab(/<author>\s*<name>([^<]*)<\/name>\s*<\/author>/m),
publisher: grab(/<publisher>\s*<name>([^<]*)<\/name>\s*<\/publisher>/m),
articleCount: Number(grab(/<articleCount>([^<]*)<\/articleCount>/)) || 0,
sizeMb: linkMatch ? (Number((b.match(/length=["'](\d+)["']/) || [])[1] || 0) / 1024 / 1024).toFixed(1) : '?',
href: linkMatch ? linkMatch[1] : null,
icon: iconMatch ? new URL(iconMatch[1], baseUrl).href : null,
sizeMb: linkMatch ? +(Number((b.match(/length=["'](\d+)["']/) || [])[1] || 0) / 1024 / 1024).toFixed(1) : '?',
download: linkMatch ? linkMatch[1] : null,
icon: iconMatch ? new URL(iconMatch[1], catalog).href : null,
viewer: name ? new URL(`viewer#${name}`, catalog).href : null,
};
});
}
async function fetchEntries(term, lang, url = CATALOG_URL) {
const params = new URLSearchParams({q: term, count: String(PAGE_SIZE), lang: lang || 'eng'});
const res = await fetch(`${url}?${params}`);
const res = await fetch(`${url}/catalog/v2/entries?${params}`);
if (!res.ok) throw new Error(`${res.status} ${res.statusText}`);
return parseEntries(await res.text());
}
@@ -44,7 +46,7 @@ async function fetchEntries(term, lang, url = CATALOG_URL) {
/** Looks up a single catalog entry by exact `name` (used to check for available updates). */
export async function zimCatalogInfo(name, url = CATALOG_URL) {
const params = new URLSearchParams({name, count: '5'});
const res = await fetch(`${url}?${params}`);
const res = await fetch(`${url}/catalog/v2/entries?${params}`);
if (!res.ok) return null;
return parseEntries(await res.text()).find(e => e.name === name) || null;
}