mirror of
https://github.com/TryGhost/Ghost.git
synced 2024-12-14 18:52:05 +03:00
225 lines
8.0 KiB
JavaScript
225 lines
8.0 KiB
JavaScript
// Contains all path information to be used throughout
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// the codebase.
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var moment = require('moment'),
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_ = require('lodash'),
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ghostConfig = '';
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// ## setConfig
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// Simple utility function to allow
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// passing of the ghostConfig
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// object here to be used locally
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// to ensure clean dependency graph
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// (i.e. no circular dependencies).
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function setConfig(config) {
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ghostConfig = config;
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}
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function getBaseUrl(secure) {
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return (secure && ghostConfig.urlSSL) ? ghostConfig.urlSSL : ghostConfig.url;
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}
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function urlJoin() {
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var args = Array.prototype.slice.call(arguments),
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prefixDoubleSlash = false,
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subdir = ghostConfig.paths.subdir.replace(/\//g, ''),
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subdirRegex,
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url;
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// Remove empty item at the beginning
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if (args[0] === '') {
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args.shift();
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}
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// Handle schemeless protocols
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if (args[0].indexOf('//') === 0) {
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prefixDoubleSlash = true;
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}
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// join the elements using a slash
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url = args.join('/');
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// Fix multiple slashes
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url = url.replace(/(^|[^:])\/\/+/g, '$1/');
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// Put the double slash back at the beginning if this was a schemeless protocol
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if (prefixDoubleSlash) {
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url = url.replace(/^\//, '//');
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}
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// Deduplicate subdirectory
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if (subdir) {
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subdirRegex = new RegExp(subdir + '\/' + subdir);
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url = url.replace(subdirRegex, subdir);
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}
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return url;
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}
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// ## createUrl
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// Simple url creation from a given path
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// Ensures that our urls contain the subdirectory if there is one
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// And are correctly formatted as either relative or absolute
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// Usage:
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// createUrl('/', true) -> http://my-ghost-blog.com/
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// E.g. /blog/ subdir
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// createUrl('/welcome-to-ghost/') -> /blog/welcome-to-ghost/
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// Parameters:
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// - urlPath - string which must start and end with a slash
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// - absolute (optional, default:false) - boolean whether or not the url should be absolute
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// - secure (optional, default:false) - boolean whether or not to use urlSSL or url config
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// Returns:
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// - a URL which always ends with a slash
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function createUrl(urlPath, absolute, secure) {
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urlPath = urlPath || '/';
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absolute = absolute || false;
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var base;
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// create base of url, always ends without a slash
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if (absolute) {
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base = getBaseUrl(secure);
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} else {
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base = ghostConfig.paths.subdir;
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}
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return urlJoin(base, urlPath);
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}
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// ## urlPathForPost
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// Always sync
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// Creates the url path for a post, given a post and a permalink
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// Parameters:
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// - post - a json object representing a post
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// - permalinks - a string containing the permalinks setting
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function urlPathForPost(post, permalinks) {
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var output = '',
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tags = {
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year: function () { return moment(post.published_at).format('YYYY'); },
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month: function () { return moment(post.published_at).format('MM'); },
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day: function () { return moment(post.published_at).format('DD'); },
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author: function () { return post.author.slug; },
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slug: function () { return post.slug; },
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id: function () { return post.id; }
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};
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if (post.page) {
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output += '/:slug/';
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} else {
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output += permalinks;
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}
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// replace tags like :slug or :year with actual values
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output = output.replace(/(:[a-z]+)/g, function (match) {
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if (_.has(tags, match.substr(1))) {
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return tags[match.substr(1)]();
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}
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});
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return output;
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}
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// ## urlFor
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// Synchronous url creation for a given context
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// Can generate a url for a named path, given path, or known object (post)
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// Determines what sort of context it has been given, and delegates to the correct generation method,
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// Finally passing to createUrl, to ensure any subdirectory is honoured, and the url is absolute if needed
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// Usage:
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// urlFor('home', true) -> http://my-ghost-blog.com/
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// E.g. /blog/ subdir
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// urlFor({relativeUrl: '/my-static-page/'}) -> /blog/my-static-page/
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// E.g. if post object represents welcome post, and slugs are set to standard
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// urlFor('post', {...}) -> /welcome-to-ghost/
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// E.g. if post object represents welcome post, and slugs are set to date
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// urlFor('post', {...}) -> /2014/01/01/welcome-to-ghost/
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// Parameters:
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// - context - a string, or json object describing the context for which you need a url
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// - data (optional) - a json object containing data needed to generate a url
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// - absolute (optional, default:false) - boolean whether or not the url should be absolute
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// This is probably not the right place for this, but it's the best place for now
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function urlFor(context, data, absolute) {
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var urlPath = '/',
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secure, imagePathRe,
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knownObjects = ['post', 'tag', 'author', 'image', 'nav'], baseUrl,
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hostname,
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// this will become really big
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knownPaths = {
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home: '/',
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rss: '/rss/',
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api: '/ghost/api/v0.1',
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sitemap_xsl: '/sitemap.xsl'
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};
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// Make data properly optional
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if (_.isBoolean(data)) {
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absolute = data;
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data = null;
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}
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// Can pass 'secure' flag in either context or data arg
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secure = (context && context.secure) || (data && data.secure);
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if (_.isObject(context) && context.relativeUrl) {
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urlPath = context.relativeUrl;
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} else if (_.isString(context) && _.indexOf(knownObjects, context) !== -1) {
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// trying to create a url for an object
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if (context === 'post' && data.post) {
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urlPath = data.post.url;
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secure = data.secure;
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} else if (context === 'tag' && data.tag) {
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urlPath = urlJoin('/', ghostConfig.routeKeywords.tag, data.tag.slug, '/');
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secure = data.tag.secure;
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} else if (context === 'author' && data.author) {
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urlPath = urlJoin('/', ghostConfig.routeKeywords.author, data.author.slug, '/');
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secure = data.author.secure;
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} else if (context === 'image' && data.image) {
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urlPath = data.image;
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imagePathRe = new RegExp('^' + ghostConfig.paths.subdir + '/' + ghostConfig.paths.imagesRelPath);
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absolute = imagePathRe.test(data.image) ? absolute : false;
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secure = data.image.secure;
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if (absolute) {
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// Remove the sub-directory from the URL because ghostConfig will add it back.
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urlPath = urlPath.replace(new RegExp('^' + ghostConfig.paths.subdir), '');
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baseUrl = getBaseUrl(secure).replace(/\/$/, '');
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urlPath = baseUrl + urlPath;
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}
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return urlPath;
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} else if (context === 'nav' && data.nav) {
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urlPath = data.nav.url;
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baseUrl = getBaseUrl(secure);
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hostname = baseUrl.split('//')[1] + ghostConfig.paths.subdir;
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if (urlPath.indexOf(hostname) > -1
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&& urlPath.indexOf('.' + hostname) === -1
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&& urlPath.indexOf('mailto:') !== 0) {
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// make link relative to account for possible
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// mismatch in http/https etc, force absolute
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// do not do so if link is a subdomain of blog url
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urlPath = urlPath.split(hostname)[1];
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if (urlPath.substring(0, 1) !== '/') {
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urlPath = '/' + urlPath;
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}
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absolute = true;
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}
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}
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// other objects are recognised but not yet supported
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} else if (_.isString(context) && _.indexOf(_.keys(knownPaths), context) !== -1) {
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// trying to create a url for a named path
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urlPath = knownPaths[context] || '/';
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}
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// This url already has a protocol so is likely an external url to be returned
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// or it is an alternative scheme, protocol-less, or an anchor-only path
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if (urlPath && (urlPath.indexOf('://') !== -1 || urlPath.match(/^(\/\/|#|[a-zA-Z0-9\-]+:)/))) {
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return urlPath;
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}
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return createUrl(urlPath, absolute, secure);
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}
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module.exports.setConfig = setConfig;
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module.exports.urlJoin = urlJoin;
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module.exports.urlFor = urlFor;
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module.exports.urlPathForPost = urlPathForPost;
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