| 1 | var DomHandler = require("./DomHandler.js"),
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| 2 | DomUtils = require("./DomUtils.js");
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| 3 |
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| 4 |
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| 5 | function FeedHandler(callback){
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| 6 | this.init(callback, { ignoreWhitespace: true });
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| 7 | }
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| 8 |
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| 9 | require("util").inherits(FeedHandler, DomHandler);
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| 10 |
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| 11 | FeedHandler.prototype.init = DomHandler;
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| 12 |
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| 13 | function getElements(what, where, one, recurse){
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| 14 | if(one) return DomUtils.getElementsByTagName(what, where, recurse, 1)[0];
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| 15 | else return DomUtils.getElementsByTagName(what, where, recurse);
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| 16 | }
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| 17 | function fetch(what, where, recurse){
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| 18 | var ret = getElements(what, where, true, recurse);
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| 19 | if(ret && (ret = ret.children) && ret.length !== 0) return ret[0].data;
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| 20 | else return false;
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| 21 | }
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| 22 |
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| 23 | var isValidFeed = function(value) {
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| 24 | return value === "rss" || value === "feed" || value === "rdf:RDF";
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| 25 | }
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| 26 |
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| 27 | FeedHandler.prototype.onend = function() {
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| 28 | var feed = {};
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| 29 | var feedRoot;
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| 30 | var tmp, items, childs;
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| 31 |
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| 32 | feedRoot = getElements(isValidFeed, this.dom, true);
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| 33 | if (feedRoot) {
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| 34 | if(feedRoot.name === "feed"){
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| 35 | childs = feedRoot.children;
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| 36 | items = getElements("entry", childs);
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| 37 | }
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| 38 | else{
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| 39 | items = getElements("item", feedRoot.children);
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| 40 | childs = getElements("channel", feedRoot.children, true).children;
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| 41 | }
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| 42 |
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| 43 | if (feedRoot.name === "feed"){
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| 44 | feed.type = "atom";
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| 45 | if(tmp = fetch("id", childs))
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| 46 | feed.id = tmp;
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| 47 | if(tmp = fetch("title", childs))
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| 48 | feed.title = tmp;
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| 49 | if((tmp = getElements("link", childs, true)) && (tmp = tmp.attribs) && (tmp = tmp.href))
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| 50 | feed.link = tmp;
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| 51 | if(tmp = fetch("subtitle", childs))
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| 52 | feed.description = tmp;
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| 53 | if(tmp = fetch("updated", childs))
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| 54 | feed.updated = new Date(tmp);
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| 55 | if(tmp = fetch("email", childs, true))
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| 56 | feed.author = tmp;
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| 57 | feed.items = Array(items.length);
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| 58 | items.forEach(function(item, i){
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| 59 | var entry = {}, tmp;
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| 60 | if(tmp = fetch("id", item.children))
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| 61 | entry.id = tmp;
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| 62 | if(tmp = fetch("title", item.children))
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| 63 | entry.title = tmp;
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| 64 | if((tmp = getElements("link", item.children, true)) && (tmp = tmp.attribs) && (tmp = tmp.href))
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| 65 | entry.link = tmp;
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| 66 | if(tmp = fetch("summary", item.children))
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| 67 | entry.description = tmp;
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| 68 | if(tmp = fetch("updated", item.children))
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| 69 | entry.pubDate = new Date(tmp);
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| 70 | feed.items[i] = entry;
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| 71 | });
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| 72 | } else {
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| 73 | feed.type = feedRoot.name;
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| 74 | feed.id = "";
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| 75 | if(tmp = fetch("title", childs))
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| 76 | feed.title = tmp;
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| 77 | if(tmp = fetch("link", childs))
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| 78 | feed.link = tmp;
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| 79 | if(tmp = fetch("description", childs))
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| 80 | feed.description = tmp;
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| 81 | if(tmp = fetch("lastBuildDate", childs))
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| 82 | feed.updated = new Date(tmp);
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| 83 | if(tmp = fetch("managingEditor", childs))
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| 84 | feed.author = tmp;
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| 85 | feed.items = Array(items.length);
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| 86 | items.forEach(function(item, i){
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| 87 | var entry = {}, tmp;
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| 88 | if(tmp = fetch("guid", item.children))
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| 89 | entry.id = tmp;
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| 90 | if(tmp = fetch("title", item.children))
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| 91 | entry.title = tmp;
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| 92 | if(tmp = fetch("link", item.children))
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| 93 | entry.link = tmp;
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| 94 | if(tmp = fetch("description", item.children))
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| 95 | entry.description = tmp;
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| 96 | if(tmp = fetch("pubDate", item.children))
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| 97 | entry.pubDate = new Date(tmp);
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| 98 | feed.items[i] = entry;
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| 99 | });
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| 100 | }
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| 101 | }
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| 102 | this.dom = feed;
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| 103 | DomHandler.prototype._handleCallback.call(this);
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| 104 | };
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| 105 |
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| 106 | module.exports = FeedHandler; |
| \ | No newline at end of file |