diff options
Diffstat (limited to 'src/write/build-modes/live-dev-server.js')
| -rw-r--r-- | src/write/build-modes/live-dev-server.js | 287 |
1 files changed, 273 insertions, 14 deletions
diff --git a/src/write/build-modes/live-dev-server.js b/src/write/build-modes/live-dev-server.js index c309471..80badeb 100644 --- a/src/write/build-modes/live-dev-server.js +++ b/src/write/build-modes/live-dev-server.js @@ -1,34 +1,55 @@ +import * as http from 'http'; +import {createReadStream} from 'fs'; +import {stat} from 'fs/promises'; +import * as path from 'path'; +import {pipeline} from 'stream/promises' + +import {bindUtilities} from '../bind-utilities.js'; + +import {serializeThings} from '../../data/serialize.js'; + import * as pageSpecs from '../../page/index.js'; +import {logInfo, progressCallAll} from '../../util/cli.js'; +import {withEntries} from '../../util/sugar.js'; + +import { + getPagePathname, + getPageSubdirectoryPrefix, + getURLsFrom, +} from '../../util/urls.js'; + import { - logInfo, - progressCallAll, -} from '../../util/cli.js'; + generateDocumentHTML, + generateGlobalWikiDataJSON, + generateRedirectHTML, +} from '../page-template.js'; export function getCLIOptions() { - // Stub. return {}; } export async function go({ _cliOptions, _dataPath, - _mediaPath, + mediaPath, _queueSize, - _defaultLanguage, - _languages, - _srcRootPath, - _urls, + defaultLanguage, + languages, + srcRootPath, + urls, _urlSpec, wikiData, - _cachebust, - _developersComment, - _getSizeOfAdditionalFile, + cachebust, + developersComment, + getSizeOfAdditionalFile, }) { + const port = 8002; + let targetSpecPairs = getPageSpecsWithTargets({wikiData}); - const writes = progressCallAll(`Computing page data & paths for ${targetSpecPairs.length} targets.`, + const pages = progressCallAll(`Computing page data & paths for ${targetSpecPairs.length} targets.`, targetSpecPairs.map(({ pageSpec, target, @@ -38,7 +59,245 @@ export async function go({ ? pageSpec.writeTargetless({wikiData}) : pageSpec.write(target, {wikiData}))).flat(); - logInfo`Will be serving a total of ${writes.length} pages.`; + logInfo`Will be serving a total of ${pages.length} pages.`; + + const urlToPageMap = Object.fromEntries(pages + .filter(page => page.type === 'page' || page.type === 'redirect') + .flatMap(page => { + let servePath; + if (page.type === 'page') + servePath = page.path; + else if (page.type === 'redirect') + servePath = page.fromPath; + + const fullKey = 'localized.' + servePath[0]; + const urlArgs = servePath.slice(1); + + return Object.values(languages).map(language => { + const baseDirectory = + language === defaultLanguage ? '' : language.code; + + const pathname = getPagePathname({ + baseDirectory, + fullKey, + urlArgs, + urls, + }); + + return [pathname, { + baseDirectory, + language, + page, + servePath, + }]; + }); + })); + + const server = http.createServer(async (request, response) => { + const contentTypeHTML = {'Content-Type': 'text/html; charset=utf-8'}; + const contentTypeJSON = {'Content-Type': 'text/json; charset=utf-8'}; + const contentTypePlain = {'Content-Type': 'text/plain; charset=utf-8'}; + + const requestTime = new Date().toLocaleDateString('en-US', {hour: '2-digit', minute: '2-digit', second: '2-digit'}); + const requestHead = `${requestTime} - ${request.socket.remoteAddress}`; + + let url; + try { + url = new URL(request.url, `http://${request.headers.host}`); + } catch (error) { + response.writeHead(500, contentTypePlain); + response.end('Failed to parse request URL\n'); + return; + } + + const {pathname} = url; + + // Specialized routes + + if (pathname === '/data.json') { + response.writeHead(200, contentTypeJSON); + response.end(generateGlobalWikiDataJSON({ + serializeThings, + wikiData, + })); + return; + } + + const { + area: localFileArea, + path: localFilePath + } = pathname.match(/^\/(?<area>static|media)\/(?<path>.*)/)?.groups ?? {}; + + if (localFileArea) { + // Not security tested, man, this is a dev server!! + const safePath = path.resolve('/', localFilePath).replace(/^\//, ''); + + let localDirectory; + if (localFileArea === 'static') { + localDirectory = path.join(srcRootPath, 'static'); + } else if (localFileArea === 'media') { + localDirectory = mediaPath; + } + + const filePath = path.resolve(localDirectory, safePath); + + try { + await stat(filePath); + } catch (error) { + if (error.code === 'ENOENT') { + response.writeHead(404, contentTypePlain); + response.end(`No ${localFileArea} file found for: ${safePath}`); + console.log(`${requestHead} [404] ${pathname}`); + console.log(`ENOENT for stat: ${filePath}`); + } else { + response.writeHead(500, contentTypePlain); + response.end(`Internal error accessing ${localFileArea} file for: ${safePath}`); + console.error(`${requestHead} [500] ${pathname}`); + console.error(error); + } + return; + } + + try { + response.writeHead(200); // Sorry, no MIME type for now + await pipeline( + createReadStream(filePath), + response); + console.log(`${requestHead} [200] ${pathname}`); + } catch (error) { + response.writeHead(500, contentTypePlain); + response.end(`Failed during file-to-response pipeline`); + console.error(`${requestHead} [500] ${pathname}`); + console.error(error); + return; + } + } + + // Other routes determined by page and URL specs + + // URL to page map expects trailing slash but no leading slash. + const pathnameKey = pathname.replace(/^\//, '') + (pathname.endsWith('/') ? '' : '/'); + + if (!Object.hasOwn(urlToPageMap, pathnameKey)) { + response.writeHead(404, contentTypePlain); + response.end(`No page found for: ${pathnameKey}\n`); + console.log(`${requestHead} [404] ${pathname}`); + return; + } + + const { + baseDirectory, + language, + page, + servePath, + } = urlToPageMap[pathnameKey]; + + const to = getURLsFrom({ + urls, + baseDirectory, + pageSubKey: servePath[0], + subdirectoryPrefix: getPageSubdirectoryPrefix({ + urlArgs: servePath.slice(1), + }), + }); + + const absoluteTo = (targetFullKey, ...args) => { + const [groupKey, subKey] = targetFullKey.split('.'); + const from = urls.from('shared.root'); + return ( + '/' + + (groupKey === 'localized' && baseDirectory + ? from.to( + 'localizedWithBaseDirectory.' + subKey, + baseDirectory, + ...args + ) + : from.to(targetFullKey, ...args)) + ); + }; + + try { + const pageSubKey = servePath[0]; + const urlArgs = servePath.slice(1); + + if (page.type === 'redirect') { + response.writeHead(301, contentTypeHTML); + + const target = to('localized.' + page.toPath[0], ...page.toPath.slice(1)); + const redirectHTML = generateRedirectHTML(page.title, target, {language}); + + response.end(redirectHTML); + + console.log(`${requestHead} [301] (redirect) ${pathname}`); + return; + } + + response.writeHead(200, contentTypeHTML); + + const localizedPathnames = withEntries(languages, entries => entries + .filter(([key, language]) => key !== 'default' && !language.hidden) + .map(([_key, language]) => [ + language.code, + getPagePathname({ + baseDirectory: + (language === defaultLanguage + ? '' + : language.code), + fullKey: 'localized.' + pageSubKey, + urlArgs, + urls, + }), + ])); + + const bound = bindUtilities({ + language, + to, + wikiData, + }); + + const pageInfo = page.page({ + ...bound, + + absoluteTo, + relativeTo: to, + to, + urls, + + getSizeOfAdditionalFile, + }); + + const pageHTML = generateDocumentHTML(pageInfo, { + cachebust, + defaultLanguage, + developersComment, + getThemeString: bound.getThemeString, + language, + languages, + localizedPathnames, + oEmbedJSONHref: null, // No oEmbed support for live dev server + pageSubKey, + pathname, + urlArgs, + to, + transformMultiline: bound.transformMultiline, + wikiData, + }); + + console.log(`${requestHead} [200] ${pathname}`); + response.end(pageHTML); + } catch (error) { + response.writeHead(500, contentTypePlain); + response.end(`Error generating page, view server log for details\n`); + console.error(`${requestHead} [500] ${pathname}`); + console.error(error); + } + }); + + server.listen(port); + logInfo`${'All done!'} Listening at ${`http://0.0.0.0:${port}/`}`; + + // Just keep going... forever!!! + await new Promise(() => {}); return true; } |