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/**
* Copyright 2009 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS-IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import("stringutils.sprintf");
// TODO: validate XHTML of entries?
function _xmlDate(d) {
return sprintf("%04d-%02d-%02dT%02d:%02d:%02dZ",
d.getUTCFullYear(), d.getUTCMonth()+1, d.getUTCDate(),
d.getUTCHours(), d.getUTCMinutes(), d.getUTCSeconds());
}
// "entries" is an object with "forEach" member (an Array works).
// Each entry should have these properties:
// * title
// * author
// * published (Date)
// * updated (Date)
// * href (URL for HTML version)
// * content (valid xhtml)
//
// NOTE: entries should be sorted descending by entry.updated (newest first)
//
function renderFeed(title, lastUpdated, entries, href) {
function ampesc(url) {
return url.replace(/&/g, '&');
}
var r = [];
r.push('<?xml version="1.0" encoding="utf-8"?>',
'<feed xmlns="http://www.w3.org/2005/Atom">');
r.push('<title type="text">' + title + '</title>');
r.push('<updated>' + _xmlDate(lastUpdated) + '</updated>');
r.push('<link rel="self" href="' + request.url + '" />');
r.push('<link rel="alternate" type="text/html" href="' + href + '" />');
r.push('<id>' + ampesc(request.url) + '</id>');
entries.forEach(function(entry) {
r.push('<entry>',
'<title>' + entry.title + '</title>',
'<author><name>' + entry.author + '</name></author>',
'<published>' + _xmlDate(entry.published) + '</published>',
'<updated>' + _xmlDate(entry.updated) + '</updated>',
'<link rel="alternate" type="text/html" href="' + entry.href + '" />',
'<id>'+ampesc(entry.href)+'</id>',
'<content type="xhtml">',
'<div xmlns="http://www.w3.org/1999/xhtml">'+entry.content+'</div>',
'</content>',
'</entry>');
});
r.push('</feed>');
return r.join('\n');
}
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