mirror of
https://github.com/svemagie/indiekit-endpoint-microsub.git
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ab6f81bf72
- Add validator.js: validateFeedUrl with comments feed detection - Add discovery.js: discoverAndValidateFeeds with type labels - Add opml.js: OPML 2.0 export of all subscriptions - Update reader.js: searchFeeds uses validation, subscribe validates - Update feeds.js: updateFeedStatus for health tracking - Update search.njk: Show feed types, validation status, error messages - Add CSS for badges, notices, and invalid feed styling - Register OPML export route at /reader/opml Phase 1 of blogroll implementation plan. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
152 lines
4.0 KiB
JavaScript
152 lines
4.0 KiB
JavaScript
/**
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* OPML export controller
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* @module controllers/opml
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*/
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import { getChannels } from "../storage/channels.js";
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import { getFeedsForChannel } from "../storage/feeds.js";
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import { getUserId } from "../utils/auth.js";
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/**
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* Generate OPML export of all subscriptions
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* GET /opml
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* @param {object} request - Express request
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* @param {object} response - Express response
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* @returns {Promise<void>}
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*/
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async function exportOpml(request, response) {
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const { application } = request.app.locals;
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const userId = getUserId(request);
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const channels = await getChannels(application, userId);
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// Build OPML structure
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const outlines = [];
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for (const channel of channels) {
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const feeds = await getFeedsForChannel(application, channel._id);
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if (feeds.length === 0) continue;
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const channelOutlines = feeds.map((feed) => ({
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text: feed.title || extractDomain(feed.url),
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title: feed.title || "",
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type: "rss",
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xmlUrl: feed.url,
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htmlUrl: deriveSiteUrl(feed.url),
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}));
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outlines.push({
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text: channel.name,
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title: channel.name,
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children: channelOutlines,
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});
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}
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const siteUrl = application.publication?.me || "https://example.com";
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const siteName = extractDomain(siteUrl);
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const opml = generateOpmlXml({
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title: `${siteName} - Microsub Subscriptions`,
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dateCreated: new Date().toUTCString(),
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ownerName: userId,
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outlines,
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});
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response.set("Content-Type", "text/x-opml");
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response.set(
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"Content-Disposition",
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'attachment; filename="subscriptions.opml"',
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);
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response.send(opml);
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}
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/**
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* Generate OPML XML from data
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* @param {object} data - OPML data
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* @param {string} data.title - Document title
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* @param {string} data.dateCreated - Creation date
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* @param {string} data.ownerName - Owner name
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* @param {Array} data.outlines - Outline items
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* @returns {string} OPML XML string
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*/
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function generateOpmlXml({ title, dateCreated, ownerName, outlines }) {
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const renderOutline = (outline, indent = " ") => {
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if (outline.children) {
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const childrenXml = outline.children
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.map((child) => renderOutline(child, indent + " "))
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.join("\n");
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return `${indent}<outline text="${escapeXml(outline.text)}" title="${escapeXml(outline.title)}">\n${childrenXml}\n${indent}</outline>`;
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}
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return `${indent}<outline text="${escapeXml(outline.text)}" title="${escapeXml(outline.title)}" type="${outline.type}" xmlUrl="${escapeXml(outline.xmlUrl)}" htmlUrl="${escapeXml(outline.htmlUrl)}"/>`;
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};
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const outlinesXml = outlines.map((o) => renderOutline(o)).join("\n");
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return `<?xml version="1.0" encoding="UTF-8"?>
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<opml version="2.0">
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<head>
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<title>${escapeXml(title)}</title>
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<dateCreated>${dateCreated}</dateCreated>
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<ownerName>${escapeXml(ownerName)}</ownerName>
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</head>
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<body>
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${outlinesXml}
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</body>
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</opml>`;
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}
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/**
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* Escape XML special characters
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* @param {string} str - String to escape
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* @returns {string} Escaped string
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*/
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function escapeXml(str) {
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if (!str) return "";
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return String(str)
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.replace(/&/g, "&")
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.replace(/</g, "<")
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.replace(/>/g, ">")
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.replace(/"/g, """)
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.replace(/'/g, "'");
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}
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/**
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* Extract domain from URL
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* @param {string} url - URL to extract domain from
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* @returns {string} Domain
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*/
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function extractDomain(url) {
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try {
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return new URL(url).hostname;
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} catch {
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return url;
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}
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}
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/**
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* Derive site URL from feed URL
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* @param {string} feedUrl - Feed URL
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* @returns {string} Site URL
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*/
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function deriveSiteUrl(feedUrl) {
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try {
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const url = new URL(feedUrl);
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// Remove common feed paths
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const path = url.pathname
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.replace(/\/feed\/?$/, "")
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.replace(/\/rss\/?$/, "")
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.replace(/\/atom\.xml$/, "")
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.replace(/\/rss\.xml$/, "")
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.replace(/\/feed\.xml$/, "")
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.replace(/\/index\.xml$/, "")
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.replace(/\.rss$/, "")
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.replace(/\.atom$/, "");
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return `${url.origin}${path || "/"}`;
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} catch {
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return feedUrl;
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}
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}
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export const opmlController = { exportOpml };
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