140 lines
3.1 KiB
JavaScript
140 lines
3.1 KiB
JavaScript
var pug = require('pug');
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var FeedParser = require('feedparser');
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var ejs = require('ejs');
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var fs = require('fs');
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var template = ejs.compile(fs.readFileSync('./lib/template.ejs','utf8'));
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// source the files
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module.exports = function(stream,opts,callback){
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var callback = callback;
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var opts = opts;
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if (typeof opts == 'function'){
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callback = opts;
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opts = {};
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}
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// convert s from atom feed to a full html page for rendering
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breakDown(stream,function(er,data){
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if (er) {
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return callback(er);
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}
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callback(null,buildUp(data,opts));
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});
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}
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// break the xml into json
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function breakDown(stream,callback){
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var spent = false;
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function cbOnce(er,data){
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if (!spent){
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callback(er,data);
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spent = true;
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}
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}
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stream.on('error',cbOnce);
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var feedparser = new FeedParser();
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feedparser.on('error', cbOnce);
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stream.pipe(feedparser)
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feedparser.items = [];
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feedparser.on('readable', function () {
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// This is where the action is!
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var stream = this; // `this` is `feedparser`, which is a stream
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var items = [];
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var item;
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while (item = stream.read()) {
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feedparser.items.push(item);
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}
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});
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feedparser.on('end',function(er){cbOnce(null,feedparser)});
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}
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// hydrate the json to html
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function buildUp(jsonObj,opts){
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// assign opts to the obj
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jsonObj.opts = opts||{};
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// add some links to the item for avatar et cetera
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jsonObj.items.forEach(function(item){
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// get date
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item.stringDate = isoDateToEnglish(item.date);
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item.content = getH(item,'atom:content');
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// get enclosures
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item.enclosures = [];
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if (item["activity:object"] && item["activity:object"].link){
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item["activity:object"].link.forEach(function(link){
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if (!link['@']){return;} // avoid keyerror
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var rel = link['@'].rel;
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var href = link['@'].href;
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if (rel == 'enclosure'){
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item.enclosures.push(href);
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}
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});
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}
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// get author info
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item.author = {};
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var _author = item.meta['atom:author'];
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if ( item['activity:object'] && item['activity:object'].author){
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_author = item['activity:object'].author;
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}
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// item.author.name = _author.name.# or empty string
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item.author.name = getH(_author,'name');
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item.author.uri = getH(_author,'uri');
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item.author.fullName = getH(_author,'email');
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item.author.displayName = getH(_author,'poco:displayname');
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var authorLinks = _author.link || [];
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authorLinks.forEach(function(link){
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if (!link['@']){return;} // avoid keyerror
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var rel = link['@'].rel;
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var href = link['@'].href;
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if (rel == 'avatar'){
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item.author.avatar = href;
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}else if(rel == 'alternate'){
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item.author.alternate = href;
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}
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});
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});
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return template(jsonObj);
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}
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// get obj[key]['#'] or ''
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function getH(obj,key){
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if (!obj[key]){return ''}
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return obj[key]['#']||'';
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}
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function isoDateToEnglish(d){
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var d = d;
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if (typeof d == 'object'){
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d = d.toISOString();
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}
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var dt = d.split(/[t\-]/ig);
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var months = [ "January", "February", "March", "April", "May", "June",
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"July", "August", "September", "October", "November", "December" ];
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return months[Number(dt[1])-1] +' '+dt[2]+ ', '+dt[0];
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}
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