iframely/plugins/links/prerender/prerender.js

oEmbed/2 gateway endpoint. Get embed data for various http links through one self-hosted API

import utils from './utils.js';

export default {

    highestPriority: true,

    provides: ['appUriData', 'whenPrerender'],

    getData: function(url, __appFlag, iframelyRun, options, meta, cb) {

        if (CONFIG.PRERENDER && CONFIG.PRERENDER_URL && options.user_agent === CONFIG.FB_USER_AGENT) {

            var prerenderUrl = CONFIG.PRERENDER_URL + encodeURIComponent(url);
            var options2 = {...options, ...{
                debug: false,
                refresh: true
            }};

            iframelyRun(prerenderUrl, options2, function(error, data) {

                var title = data && data.meta && ((data.meta.og && data.meta.og.title) || (data.meta.twitter && data.meta.twitter.title) || data.meta.title || data.meta['html-title']);

                if (data && data.meta && utils.maybeApp(data.meta)) {
                    return cb({
                        responseStatusCode: 415
                    });
                } else {
                    if (data.meta.canonical
                        && data.meta.canonical.startsWith(CONFIG.PRERENDER_URL)
                    ) {
                        delete data.meta.canonical;
                    }
                    return cb(error, {
                        appUriData: data,
                        whenPrerender: true
                    });
                }
            });
        } else {
            return cb();
        }
    },

    getMeta: function(appUriData, whenPrerender) {
        return {...appUriData.meta};
    },

    getLinks: function(appUriData, whenPrerender) {
        return appUriData.links;
    }
};