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Diffstat (limited to 'trunk/infrastructure/framework-src/modules/atomfeed.js')
| -rw-r--r-- | trunk/infrastructure/framework-src/modules/atomfeed.js | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/trunk/infrastructure/framework-src/modules/atomfeed.js b/trunk/infrastructure/framework-src/modules/atomfeed.js new file mode 100644 index 0000000..4b86eeb --- /dev/null +++ b/trunk/infrastructure/framework-src/modules/atomfeed.js @@ -0,0 +1,72 @@ +/** + * 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'); +} + |