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d7b9eb6176
refs #6534 - this is an initial fix for having no description at all unless a meta description is provided - we may need to tweak the lengths / provide different lengths for different values in future
114 lines
3.5 KiB
JavaScript
114 lines
3.5 KiB
JavaScript
var config = require('../../config'),
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hbs = require('express-hbs'),
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escapeExpression = hbs.handlebars.Utils.escapeExpression,
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_ = require('lodash');
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// Creates the final schema object with values that are not null
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function trimSchema(schema) {
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var schemaObject = {};
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_.each(schema, function (value, key) {
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if (value !== null && typeof value !== 'undefined') {
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schemaObject[key] = value;
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}
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});
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return schemaObject;
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}
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function getPostSchema(metaData, data) {
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var description = metaData.metaDescription ? escapeExpression(metaData.metaDescription) :
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(metaData.excerpt ? escapeExpression(metaData.excerpt) : null),
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schema;
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schema = {
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'@context': 'http://schema.org',
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'@type': 'Article',
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publisher: metaData.blog.title,
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author: {
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'@type': 'Person',
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name: escapeExpression(data.post.author.name),
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image: metaData.authorImage,
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url: metaData.authorUrl,
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sameAs: data.post.author.website || null,
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description: data.post.author.bio ?
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escapeExpression(data.post.author.bio) :
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null
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},
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headline: escapeExpression(metaData.metaTitle),
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url: metaData.url,
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datePublished: metaData.publishedDate,
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dateModified: metaData.modifiedDate,
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image: metaData.coverImage,
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keywords: metaData.keywords && metaData.keywords.length > 0 ?
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metaData.keywords.join(', ') : null,
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description: description
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};
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schema.author = trimSchema(schema.author);
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return trimSchema(schema);
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}
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function getHomeSchema(metaData) {
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var schema = {
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'@context': 'http://schema.org',
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'@type': 'Website',
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publisher: escapeExpression(metaData.blog.title),
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url: metaData.url,
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image: metaData.coverImage,
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description: metaData.metaDescription ?
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escapeExpression(metaData.metaDescription) :
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null
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};
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return trimSchema(schema);
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}
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function getTagSchema(metaData, data) {
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var schema = {
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'@context': 'http://schema.org',
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'@type': 'Series',
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publisher: escapeExpression(metaData.blog.title),
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url: metaData.url,
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image: metaData.coverImage,
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name: data.tag.name,
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description: metaData.metaDescription ?
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escapeExpression(metaData.metaDescription) :
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null
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};
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return trimSchema(schema);
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}
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function getAuthorSchema(metaData, data) {
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var schema = {
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'@context': 'http://schema.org',
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'@type': 'Person',
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sameAs: data.author.website || null,
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publisher: escapeExpression(metaData.blog.title),
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name: escapeExpression(data.author.name),
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url: metaData.authorUrl,
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image: metaData.coverImage,
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description: metaData.metaDescription ?
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escapeExpression(metaData.metaDescription) :
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null
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};
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return trimSchema(schema);
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}
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function getSchema(metaData, data) {
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if (!config.isPrivacyDisabled('useStructuredData')) {
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var context = data.context ? data.context[0] : null;
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if (context === 'post') {
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return getPostSchema(metaData, data);
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} else if (context === 'home') {
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return getHomeSchema(metaData);
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} else if (context === 'tag') {
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return getTagSchema(metaData, data);
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} else if (context === 'author') {
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return getAuthorSchema(metaData, data);
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}
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}
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return null;
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}
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module.exports = getSchema;
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