const qs = require('querystring') const _ = require('lodash') const crypto = require('crypto') const path = require('path') const localeSegmentRegex = /^[A-Z]{2}(-[A-Z]{2})?$/i const localeFolderRegex = /^([a-z]{2}(?:-[a-z]{2})?\/)?(.*)/i // eslint-disable-next-line no-control-regex const unsafeCharsRegex = /[\x00-\x1f\x80-\x9f\\"|<>:*?]/ const contentToExt = { markdown: 'md', html: 'html' } const extToContent = _.invert(contentToExt) /* global WIKI */ module.exports = { /** * Parse raw url path and make it safe */ parsePath (rawPath, opts = {}) { let pathObj = { locale: WIKI.config.lang.code, path: 'home', private: false, privateNS: '', explicitLocale: false } // Clean Path rawPath = _.trim(qs.unescape(rawPath)) if (_.startsWith(rawPath, '/')) { rawPath = rawPath.substring(1) } rawPath = rawPath.replace(unsafeCharsRegex, '') if (rawPath === '') { rawPath = 'home' } // Extract Info let pathParts = _.filter(_.split(rawPath, '/'), p => { p = _.trim(p) return !_.isEmpty(p) && p !== '..' && p !== '.' }) if (pathParts[0].length === 1) { pathParts.shift() } if (localeSegmentRegex.test(pathParts[0])) { pathObj.locale = pathParts[0] pathObj.explicitLocale = true pathParts.shift() } // Strip extension if (opts.stripExt && pathParts.length > 0) { const lastPart = _.last(pathParts) if (lastPart.indexOf('.') > 0) { pathParts.pop() const lastPartMeta = path.parse(lastPart) pathParts.push(lastPartMeta.name) } } pathObj.path = _.join(pathParts, '/') return pathObj }, /** * Generate unique hash from page */ generateHash(opts) { return crypto.createHash('sha1').update(`${opts.locale}|${opts.path}|${opts.privateNS}`).digest('hex') }, /** * Inject Page Metadata */ injectPageMetadata(page) { let meta = [ ['title', page.title], ['description', page.description], ['published', page.isPublished.toString()], ['date', page.updatedAt], ['tags', page.tags ? page.tags.map(t => t.tag).join(', ') : ''], ['editor', page.editorKey], ['dateCreated', page.createdAt] ] switch (page.contentType) { case 'markdown': return '---\n' + meta.map(mt => `${mt[0]}: ${mt[1]}`).join('\n') + '\n---\n\n' + page.content case 'html': return '\n\n' + page.content case 'json': return { ...page.content, _meta: _.fromPairs(meta) } default: return page.content } }, /** * Check if path is a reserved path */ isReservedPath(rawPath) { const firstSection = _.head(rawPath.split('/')) if (firstSection.length <= 1) { return true } else if (localeSegmentRegex.test(firstSection)) { return true } else if ( _.some(WIKI.data.reservedPaths, p => { return p === firstSection })) { return true } else { return false } }, /** * Get file extension from content type */ getFileExtension(contentType) { return _.get(contentToExt, contentType, 'txt') }, /** * Get content type from file extension */ getContentType (filePath) { const ext = _.last(filePath.split('.')) return _.get(extToContent, ext, false) }, /** * Get Page Meta object from disk path */ getPagePath (filePath) { let fpath = filePath if (process.platform === 'win32') { fpath = filePath.replace(/\\/g, '/') } let meta = { locale: WIKI.config.lang.code, path: _.initial(fpath.split('.')).join('') } const result = localeFolderRegex.exec(meta.path) if (result[1]) { meta = { locale: result[1].replace('/', ''), path: result[2] } } return meta } }