From 4655e0952b503c178f7f3271a0b38ae65c590cc2 Mon Sep 17 00:00:00 2001 From: Ethan Shen <42264778+nczitzk@users.noreply.github.com> Date: Thu, 11 Apr 2024 03:35:55 +0800 Subject: [PATCH] feat(route): add WordPress (#15171) * feat(route): add WordPress * fix docs * feat: add search keywords --- lib/routes-deprecated/blogs/wordpress.js | 50 ---- lib/routes/wordpress/index.ts | 172 +++++++++++++ lib/routes/wordpress/namespace.ts | 8 + lib/routes/wordpress/util.ts | 307 +++++++++++++++++++++++ 4 files changed, 487 insertions(+), 50 deletions(-) delete mode 100644 lib/routes-deprecated/blogs/wordpress.js create mode 100644 lib/routes/wordpress/index.ts create mode 100644 lib/routes/wordpress/namespace.ts create mode 100644 lib/routes/wordpress/util.ts diff --git a/lib/routes-deprecated/blogs/wordpress.js b/lib/routes-deprecated/blogs/wordpress.js deleted file mode 100644 index d0d0a8c97..000000000 --- a/lib/routes-deprecated/blogs/wordpress.js +++ /dev/null @@ -1,50 +0,0 @@ -const parser = require('@/utils/rss-parser'); -const config = require('@/config').value; -const allowDomain = new Set(['lawrence.code.blog']); - -module.exports = async (ctx) => { - if (!config.feature.allow_user_supply_unsafe_domain && !allowDomain.has(ctx.params.domain)) { - ctx.throw(403, `This RSS is disabled unless 'ALLOW_USER_SUPPLY_UNSAFE_DOMAIN' is set to 'true'.`); - } - - const scheme = ctx.params.https || 'https'; - const cdn = config.wordpress.cdnUrl; - - const domain = `${scheme}://${ctx.params.domain}`; - const feed = await parser.parseURL(`${domain}/feed/`); - const items = await Promise.all( - feed.items.map(async (item) => { - const cache = await ctx.cache.get(item.link); - if (cache) { - return JSON.parse(cache); - } - const description = - scheme === 'https' || !cdn - ? item['content:encoded'] - : item['content:encoded'].replaceAll(/(?<=)/g, (match, p) => { - if (p[0] === '/') { - return cdn + feed.link + p; - } else if (p.slice(0, 5) === 'http:') { - return cdn + p; - } else { - return p; - } - }); - const article = { - title: item.title, - description, - pubDate: item.pubDate, - link: item.link, - author: item.creator, - }; - return article; - }) - ); - - ctx.state.data = { - title: feed.title, - link: feed.link, - description: feed.description, - item: items, - }; -}; diff --git a/lib/routes/wordpress/index.ts b/lib/routes/wordpress/index.ts new file mode 100644 index 000000000..05f0e4e0f --- /dev/null +++ b/lib/routes/wordpress/index.ts @@ -0,0 +1,172 @@ +import { Route } from '@/types'; + +import got from '@/utils/got'; +import { load } from 'cheerio'; +import { parseDate } from '@/utils/parse-date'; +import parser from '@/utils/rss-parser'; +import { config } from '@/config'; +import ConfigNotFoundError from '@/errors/types/config-not-found'; + +import { apiSlug, bakeFilterSearchParams, bakeFiltersWithPair, bakeUrl, fetchData, getFilterParamsForUrl, parseFilterStr } from './util'; + +async function handler(ctx) { + const { url = 'https://wordpress.org/news', filter } = ctx.req.param(); + const limit = ctx.req.query('limit') ? Number.parseInt(ctx.req.query('limit'), 10) : 50; + + if (!config.feature.allow_user_supply_unsafe_domain) { + throw new ConfigNotFoundError(`This RSS is disabled unless 'ALLOW_USER_SUPPLY_UNSAFE_DOMAIN' is set to 'true'.`); + } + + if (!/^(https?):\/\/[^\s#$./?].\S*$/i.test(url)) { + throw new Error('Invalid URL'); + } + + const cdn = config.wordpress.cdnUrl; + const rootUrl = url; + + const filters = parseFilterStr(filter); + const filtersWithPair = await bakeFiltersWithPair(filters, rootUrl); + + const searchParams = bakeFilterSearchParams(filters, 'name', false); + const apiSearchParams = bakeFilterSearchParams(filtersWithPair, 'id', true); + + apiSearchParams.append('_embed', 'true'); + apiSearchParams.append('per_page', String(limit)); + + const apiUrl = bakeUrl(`${apiSlug}/posts`, rootUrl, apiSearchParams); + const currentUrl = bakeUrl(getFilterParamsForUrl(filtersWithPair) ?? '', rootUrl, searchParams); + + try { + const { data: response } = await got(apiUrl); + + const items = (Array.isArray(response) ? response : JSON.parse(response.match(/(\[.*])$/)[1])).slice(0, limit).map((item) => { + const terminologies = item._embedded['wp:term']; + const guid = item.guid?.rendered ?? item.guid; + + const $$ = load(item.content?.rendered ?? item.content); + + $$('img').each((_, el) => { + el = $$(el); + + const src = el.prop('src'); + + if (src.startsWith('/')) { + el.prop('src', `${cdn}${item.link}${src}`); + } else if (src.startsWith('http:')) { + el.prop('src', `${cdn}${src}`); + } + }); + + const description = $$.html(); + + return { + title: item.title?.rendered ?? item.title, + description, + pubDate: parseDate(item.date_gmt), + link: item.link, + category: [...new Set(terminologies.flat().map((c) => c.name))], + author: item._embedded.author.map((a) => a.name).join('/'), + guid, + id: guid, + content: { + html: description, + text: $$.text(), + }, + updated: parseDate(item.modified_gmt), + }; + }); + + const data = await fetchData(currentUrl, rootUrl); + + return { + ...data, + item: items, + }; + } catch { + const feed = await parser.parseURL(`${rootUrl}/feed/`); + + const items = feed.items.map((item) => { + const guid = item.guid; + + const $$ = load(item['content:encoded']); + + $$('img').each((_, el) => { + el = $$(el); + + const src = el.prop('src'); + + if (src.startsWith('/')) { + el.prop('src', `${cdn}${item.link}${src}`); + } else if (src.startsWith('http:')) { + el.prop('src', `${cdn}${src}`); + } + }); + + const description = $$.html(); + + return { + title: item.title, + description, + pubDate: parseDate(item.pubDate ?? ''), + link: item.link, + category: item.categories, + author: item.creator, + guid, + id: guid, + content: { + html: description, + text: $$.text(), + }, + }; + }); + + return { + title: feed.title, + description: feed.description, + link: feed.link, + item: items, + allowEmpty: true, + image: feed.image?.url, + language: feed.language, + }; + } +} + +export const route: Route = { + path: '/:url?/:filter{.+}?', + name: 'WordPress', + url: 'wordpress.org', + maintainers: ['nczitzk'], + handler, + example: '/wordpress/https%3A%2F%2Fwordpress.org%2Fnews/category/Podcast', + parameters: { url: 'URL, by default', filter: 'Filter, see below' }, + description: `If you subscribe to [WordPress News](https://wordpress.org/news/),where the URL is \`https://wordpress.org/news/\`, Encode the URL using \`encodeURIComponent()\` and then use it as the parameter. Therefore, the route will be [\`/wordpress/https%3A%2F%2Fwordpress.org%2Fnews\`](https://rsshub.app/wordpress/https%3A%2F%2Fwordpress.org%2Fnews). + + :::tip + If you wish to subscribe to specific categories or tags, you can fill in the "filter" parameter in the route. \`/category/Podcast\` to subscribe to the Podcast category. In this case, the route would be [\`/wordpress/https%3A%2F%2Fwordpress.org%2Fnews/category/Podcast\`](https://rsshub.app/wordpress/https%3A%2F%2Fwordpress.org%2Fnews/category/Podcast). + + You can also subscribe to multiple categories. \`/category/Podcast,Community\` to subscribe to both the Podcast and Community categories. In this case, the route would be [\`/wordpress/https%3A%2F%2Fwordpress.org%2Fnews/category/Podcast,Community\`](https://rsshub.app/wordpress/https%3A%2F%2Fwordpress.org%2Fnews/category/Podcast,Community). + + Categories and tags can be combined as well. \`/category/Releases/tag/tagging\` to subscribe to the Releases category and the tagging tag. In this case, the route would be [\`/wordpress/https%3A%2F%2Fwordpress.org%2Fnews/category/Releases/tag/tagging\`](https://rsshub.app/wordpress/https%3A%2F%2Fwordpress.org%2Fnews/category/Releases/tag/tagging). + + You can also search for keywords. \`/search/Blog\` to search for the keyword "Blog". In this case, the route would be [\`/wordpress/https%3A%2F%2Fwordpress.org%2Fnews/search/Blog\`](https://rsshub.app/wordpress/https%3A%2F%2Fwordpress.org%2Fnews/search/Blog). + :::`, + categories: ['blog'], + + features: { + requireConfig: [ + { + name: 'ALLOW_USER_SUPPLY_UNSAFE_DOMAIN', + description: `This RSS is disabled unless 'ALLOW_USER_SUPPLY_UNSAFE_DOMAIN' is set to 'true'.`, + optional: false, + }, + ], + requirePuppeteer: false, + antiCrawler: false, + supportRadar: false, + supportBT: false, + supportPodcast: false, + supportScihub: false, + }, + radar: [], +}; diff --git a/lib/routes/wordpress/namespace.ts b/lib/routes/wordpress/namespace.ts new file mode 100644 index 000000000..9711e33af --- /dev/null +++ b/lib/routes/wordpress/namespace.ts @@ -0,0 +1,8 @@ +import type { Namespace } from '@/types'; + +export const namespace: Namespace = { + name: 'WordPress', + url: 'wordpress.org', + categories: ['blog'], + description: '', +}; diff --git a/lib/routes/wordpress/util.ts b/lib/routes/wordpress/util.ts new file mode 100644 index 000000000..b7152a536 --- /dev/null +++ b/lib/routes/wordpress/util.ts @@ -0,0 +1,307 @@ +import got from '@/utils/got'; +import { load } from 'cheerio'; + +const apiSlug = 'wp-json/wp/v2'; + +interface Filter { + id: string; + name: string; + slug: string; +} + +const filterKeys: Record = { + search: 's', +}; + +const filterApiKeys: Record = { + category: 'categories', + tag: 'tags', + search: undefined, +}; + +const filterApiKeysWithNoId = new Set(['search']); + +/** + * Bake filter search parameters. + * + * @param filterPairs - The filter pairs object. + * e.g. `{ category: [ { id: ..., name: ..., slug: ... }, { id: ..., name: ..., slug: ... } ], tag: [ { id: ..., name: ..., slug: ... } ] }`. + * @param pairKey - The filter pair key. + * e.g. `{ id: ..., name: ..., slug: ... }`. + * @param isApi - Indicates if the search parameters are for API. + * @returns The baked filter search parameters. + */ +const bakeFilterSearchParams = (filterPairs: Record, pairKey: string, isApi: boolean = false): URLSearchParams => { + /** + * Bake filters recursively. + * + * @param filterPairs - The filter pairs object. + * e.g. `{ category: [ { id: ..., name: ..., slug: ... }, { id: ..., name: ..., slug: ... } ], tag: [ { id: ..., name: ..., slug: ... } ] }`. + * @param filterSearchParams - The filter search parameters. + * e.g. `category=a,b&tag=c`. + * @returns The baked filter search parameters. + * e.g. `category=a,b&tag=c`. + */ + const bakeFilters = (filterPairs: Record, filterSearchParams: URLSearchParams): URLSearchParams => { + const keys = Object.keys(filterPairs).filter((key) => filterPairs[key]?.length > 0 && (isApi ? Object.hasOwn(filterApiKeys, key) : Object.hasOwn(filterKeys, key))); + + if (keys.length === 0) { + return filterSearchParams; + } + + const key = keys[0]; + const pairs = filterPairs[key]; + + const originalFilters = { ...filterPairs }; + delete originalFilters[key]; + + const filterKey = getFilterKeyForSearchParams(key, isApi); + const pairValues = pairs.map((pair) => (Object.hasOwn(pair, pairKey) ? pair[pairKey] : pair)); + + if (filterKey) { + filterSearchParams.append(filterKey, pairValues.join(',')); + } + + return bakeFilters(originalFilters, filterSearchParams); + }; + + return bakeFilters(filterPairs, new URLSearchParams()); +}; + +/** + * Bake filters with pair. + * + * @param filters - The filters object. + * e.g. `{ category: [ a, b ], tag: [ c ] }`. + * @returns The baked filters. + * e.g. `{ category: [ { id: ..., name: ..., slug: ... }, { id: ..., name: ..., slug: ... } ], tag: [ { id: ..., name: ..., slug: ... } ] }`. + */ +const bakeFiltersWithPair = async (filters: Record, rootUrl: string) => { + /** + * Bake keywords recursively. + * + * @param key - The key. + * e.g. `category` or `tag`. + * @param keywords - The keywords. + * e.g. `[ a, b ]`. + * @returns The baked keywords. + * e.g. `[ { id: ..., name: ..., slug: ... }, { id: ..., name: ..., slug: ... } ]`. + */ + const bakeKeywords = async (key: string, keywords: string[]) => { + if (keywords.length === 0) { + return []; + } + + const [keyword, ...rest] = keywords; + + const filter = await getFilterByKeyAndKeyword(key, keyword, rootUrl); + + return [ + ...(filter?.id && filter?.slug + ? [ + { + id: filter.id, + name: filter.name, + slug: filter.slug, + }, + ] + : []), + ...(await bakeKeywords(key, rest)), + ]; + }; + + /** + * Bake filters recursively. + * + * @param filters - The filters object. + * e.g. `{ category: [ a, b ], tag: [ c ] }`. + * @param filtersWithPair - The filters with pairs. + * e.g. `{ category: [ { id: ..., name: ..., slug: ... }, { id: ..., name: ..., slug: ... } ], tag: [ { id: ..., name: ..., slug: ... } ] }`. + * @returns The baked filters. + * e.g. `{ category: [ { id: ..., name: ..., slug: ... }, { id: ..., name: ..., slug: ... } ], tag: [ { id: ..., name: ..., slug: ... } ] }`. + */ + const bakeFilters = async (filters: Record, filtersWithPair: Record) => { + const keys = Object.keys(filters); + + if (keys.length === 0) { + return filtersWithPair; + } + + const key = keys[0]; + const keywords = filters[key]; + + const originalFilters = { ...filters }; + delete originalFilters[key]; + + return bakeFilters(originalFilters, { + ...filtersWithPair, + [key]: filterApiKeysWithNoId.has(key) ? keywords : await bakeKeywords(key, keywords), + }); + }; + + return await bakeFilters(filters, {}); +}; + +/** + * Bake URL with search parameters. + * + * @param url - The URL. + * @param rootUrl - The root URL. + * @param searchParams - The search parameters. + * @returns The baked URL. + */ +const bakeUrl = (url: string, rootUrl: string, searchParams: URLSearchParams = new URLSearchParams()): string => { + const searchParamsStr = searchParams.toString(); + const searchParamsSuffix = searchParamsStr ? `?${searchParamsStr}` : ''; + + return `${rootUrl}/${url}${searchParamsSuffix}`; +}; + +/** + * Fetch data from the specified URL. + * + * @param url - The URL to fetch data from. + * @param rootUrl - The root URL. + * @returns A promise that resolves to an object containing the fetched data to be added into `ctx.state.data`. + */ +const fetchData = async (url: string, rootUrl: string): Promise => { + /** + * Request URLs recursively. + * + * @param urls - The URLs to request. + * @returns A promise that resolves to the response data or undefined if no response is available. + */ + const requestUrls = async (urls: string[]): Promise => { + if (urls.length === 0) { + return; + } + + const [currentUrl, ...remainingUrls] = urls; + try { + const { data: response } = await got.get(currentUrl); + return response; + } catch { + return requestUrls(remainingUrls); + } + }; + + const response = await requestUrls([url, rootUrl]); + + if (!response) { + return {}; + } + + const $ = load(response); + + const title = $('title').first().text(); + const image = new URL('wp-content/uploads/site_logo.png', rootUrl).href; + + return { + title, + description: $('meta[property="og:description"]').attr('content') || $('meta[name="description"]').attr('content'), + link: url, + allowEmpty: true, + image, + author: $('meta[property="og:site_name"]').attr('content'), + language: $('html').attr('lang'), + }; +}; + +/** + * Get filter by key and keyword. + * + * @param key - The key. + * e.g. `category` or `tag`. + * @param keyword - The keywords. + * e.g. `keyword1`. + * @returns A promise that resolves to the filter object if found, or undefined if not found. + */ +const getFilterByKeyAndKeyword = async (key: string, keyword: string, rootUrl: string): Promise => { + const apiFilterUrl = `${rootUrl}/${apiSlug}/${getFilterKeyForSearchParams(key, true)}`; + + const { data: response } = await got(apiFilterUrl, { + searchParams: { + search: keyword, + }, + }); + + return response.length > 0 ? response[0] : undefined; +}; + +/** + * Get filter key for search parameters. + * + * @param key - The key. e.g. `category` or `tag`. + * @param isApi - Indicates whether the key is for the API. + * @returns The filter key for search parameters, or undefined if not found. + * e.g. `categories` or `tags`. + */ +const getFilterKeyForSearchParams = (key: string, isApi: boolean = false): string | undefined => { + const keys = isApi ? filterApiKeys : filterKeys; + + return Object.hasOwn(keys, key) ? keys[key] ?? key : undefined; +}; + +/** + * Get filter parameters for URL. + * + * @param filterPairs - The filter pairs object. + * e.g. `{ category: [ { id: ..., name: ..., slug: ... }, { id: ..., name: ..., slug: ... } ], tag: [ { id: ..., name: ..., slug: ... } ] }`. + * @returns The filter parameters for the URL, or undefined if no filters are available. + */ +const getFilterParamsForUrl = (filterPairs: Record): string | undefined => { + const keys = Object.keys(filterPairs).filter((key) => filterPairs[key].length > 0 && !Object.hasOwn(filterKeys, key)); + + if (keys.length === 0) { + return; + } + + const key = keys[0]; + + return `${key}/${filterPairs[key].map((pair) => pair.slug).join('/')}`; +}; + +/** + * Parses a filter string into a filters object. + * + * @param filterStr - The filter string to parse. + * e.g. `category/a,b/tag/c`. + * @returns The parsed filters object. + * e.g. `{ category: [ 'a', 'b' ], tag: [ 'c' ] }`. + */ +const parseFilterStr = (filterStr: string | undefined): Record => { + /** + * Recursively parses a filter string. + * + * @param remainingStr - The remaining filter string to parse. + * e.g. `category/a,b/tag/c`. + * @param filters - The accumulated filters object. + * e.g. `{ category: [ a, b ], tag: [ c ] }`. + * @param currentKey - The current filter key. + * e.g. `category` or `tag`. + * @returns The parsed filters object. + */ + const parseStr = (remainingStr: string | undefined, filters: Record = {}, currentKey?: string): Record => { + if (!remainingStr) { + return filters; + } + + const [word, ...rest] = remainingStr.split(/\/|,/); + + const isKey = Object.hasOwn(filterApiKeys, word); + const key = isKey ? word : currentKey; + + const newFilters = key + ? { + ...filters, + [key]: [...(filters[key] || []), ...(isKey ? [] : [word])], + } + : filters; + + return parseStr(rest.join('/'), newFilters, key); + }; + + return parseStr(filterStr, {}); +}; + +export { apiSlug, bakeFilterSearchParams, bakeFiltersWithPair, bakeUrl, fetchData, getFilterParamsForUrl, parseFilterStr };