addons/firefox-addons/feed-preview: js/feed-parser.js annotate

annotate js/feed-parser.js @ 54:ede87e1004f9

Fix issues with feed detection Query the feed probe content script for available feeds from the background script instead of making the content script message the background script. This solves a race condition between the message from the content script sending any feeds associated with the current document and the tab's status "complete" event signaling that a new document has been loaded and hiding the page action. Sometimes that event would be triggered after the message from the content script and thus hide the page action again. In addition, navigating back to a previously visited page might not cause a reload which means that the content script would not send a message if there were feeds associated with the current document.

author	Guido Berhoerster <guido+feed-preview@berhoerster.name>
date	Thu, 26 Sep 2019 23:11:18 +0200
parents	d5506fdb65f0
children

rev	line source
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	1 /*
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	2 * Copyright (C) 2018 Guido Berhoerster <guido+feed-preview@berhoerster.name>
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	3 *
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	4 * This Source Code Form is subject to the terms of the Mozilla Public
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	5 * License, v. 2.0. If a copy of the MPL was not distributed with this
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	6 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	7 */
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	8
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	9 'use strict';
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	10
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	11 export const XMLNS = {
15 150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	12 ATOM03: 'http://purl.org/atom/ns#',
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	13 ATOM10: 'http://www.w3.org/2005/Atom',
14 376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	14 RSS09: 'http://my.netscape.com/rdf/simple/0.9/',
19 3fcd2209b39a Add support for RSS 1.0 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 18 diff changeset	15 RSS10: 'http://purl.org/rss/1.0/',
47 b68880838990 Add support for the RSS Content module to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 31 diff changeset	16 CONTENT: 'http://purl.org/rss/1.0/modules/content/',
48 d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	17 DC: 'http://purl.org/dc/elements/1.1/',
15 150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	18 XHTML: 'http://www.w3.org/1999/xhtml',
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	19 PARSERERROR: 'http://www.mozilla.org/newlayout/xml/parsererror.xml'
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	20 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	21 const ALLOWED_LINK_PROTOCOLS = new Set(['http:', 'https:', 'ftp:']);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	22
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	23 function encodeXML(str) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	24 return str.replace(/[<>&'"]/g, c => {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	25 switch (c) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	26 case '<': return '<';
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	27 case '>': return '>';
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	28 case '&': return '&';
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	29 case '\'': return ''';
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	30 case '"': return '"';
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	31 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	32 });
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	33 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	34
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	35 function parseDate(s) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	36 let date = new Date(s);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	37
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	38 return isNaN(date) ? new Date(0) : date;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	39 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	40
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	41 function parseURL(text, baseURL = '') {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	42 let url;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	43
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	44 try {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	45 url = new URL(text, baseURL);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	46 } catch (e) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	47 return null;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	48 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	49 if (!ALLOWED_LINK_PROTOCOLS.has(url.protocol)) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	50 return null;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	51 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	52
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	53 return url;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	54 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	55
15 150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	56 function base64Decode(base64Str) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	57 let encodedText;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	58 try {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	59 encodedText = atob(base64Str);
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	60 } catch (e) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	61 throw (e instanceof DOMException) ? new TypeError(e.message) : e;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	62 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	63 let byteBuffer = new Uint8Array(new ArrayBuffer(encodedText.length));
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	64 for (let i = 0; i < encodedText.length; i++) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	65 byteBuffer[i] = encodedText.charCodeAt(i);
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	66 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	67 return new TextDecoder().decode(byteBuffer);
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	68 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	69
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	70 function feedNSResolver(prefix) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	71 switch (prefix) {
15 150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	72 case 'atom03':
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	73 return XMLNS.ATOM03;
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	74 case 'atom':
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	75 return XMLNS.ATOM10;
19 3fcd2209b39a Add support for RSS 1.0 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 18 diff changeset	76 case 'rss09':
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	77 return XMLNS.RSS09;
19 3fcd2209b39a Add support for RSS 1.0 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 18 diff changeset	78 case 'rss10':
3fcd2209b39a Add support for RSS 1.0 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 18 diff changeset	79 return XMLNS.RSS10;
47 b68880838990 Add support for the RSS Content module to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 31 diff changeset	80 case 'content':
b68880838990 Add support for the RSS Content module to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 31 diff changeset	81 return XMLNS.CONTENT;
48 d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	82 case 'dc':
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	83 return XMLNS.DC;
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	84 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	85 return null;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	86 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	87
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	88 function feedQueryXPath(feedDocument, scopeElement, xpathQuery) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	89 return feedDocument.evaluate(xpathQuery, scopeElement, feedNSResolver,
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	90 XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	91 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	92
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	93 function feedQueryXPathAll(feedDocument, scopeElement, xpathQuery) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	94 let result = feedDocument.evaluate(xpathQuery, scopeElement, feedNSResolver,
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	95 XPathResult.ORDERED_NODE_ITERATOR_TYPE, null);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	96 let nodes = [];
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	97 for (let node = result.iterateNext(); node !== null;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	98 node = result.iterateNext()) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	99 nodes.push(node);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	100 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	101
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	102 return nodes;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	103 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	104
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	105 export class ParserError extends Error {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	106 constructor() {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	107 super(...arguments);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	108 this.name = this.constructor.name;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	109 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	110 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	111
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	112 export class UnsupportedFeedTypeError extends Error {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	113 constructor(message = 'Document is not a supported feed', ...params) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	114 super(message, ...params);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	115 this.name = this.constructor.name;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	116 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	117 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	118
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	119 export class ProtocolError extends Error {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	120 constructor(url, status, statusText, ...params) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	121 let message = `Protocol error: Transfer of ${url} failed with: ` +
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	122 `${status} ${statusText}`
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	123 super(message, ...params);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	124 this.name = this.constructor.name;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	125 this.url = url;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	126 this.status = status;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	127 this.statusText = statusText;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	128 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	129 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	130
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	131 class FeedLogo {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	132 constructor(url, {title = ''} = {}) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	133 this.url = url;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	134 this.title = title;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	135 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	136 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	137
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	138 class FeedEntryFile {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	139 constructor(url, {type = browser.i18n.getMessage('defaultFileType'),
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	140 size = 0} = {}) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	141 this.filename = undefined;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	142 this._url = undefined;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	143 this.url = url;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	144 this.type = type;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	145 this.size = size;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	146 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	147
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	148 set url(url) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	149 this._url = url;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	150 let filename = url.pathname.split('/').pop();
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	151 this.filename = filename !== '' ? filename :
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	152 browser.i18n.getMessage('defaultFileName');
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	153 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	154
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	155 get url() {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	156 return this._url;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	157 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	158 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	159
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	160 class FeedEntry {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	161 constructor({title = browser.i18n.getMessage('defaultFeedEntryTitle'),
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	162 link = undefined, date = new Date(0), content = '',
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	163 files = []} = {}) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	164 this.title = title;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	165 this.link = link;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	166 this.date = date;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	167 this._content = undefined;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	168 this.content = content;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	169 this.files = files;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	170 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	171
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	172 normalizeContent(text) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	173 if (typeof text === 'undefined') {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	174 return
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	175 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	176
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	177 let contentDocument = document.implementation.createHTMLDocument();
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	178 let parsedDocument = new DOMParser().parseFromString(text, 'text/html');
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	179 contentDocument.body = contentDocument.adoptNode(parsedDocument.body);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	180 return new XMLSerializer().serializeToString(contentDocument);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	181 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	182
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	183 set content(content) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	184 this._content = this.normalizeContent(content);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	185 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	186
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	187 get content() {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	188 return this._content;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	189 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	190 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	191
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	192 class Feed {
31 76e23b361e92 Allow feed reader addons to subscribe to the currently viewed feed Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 28 diff changeset	193 constructor(url, type, {title = browser.i18n.getMessage('defaultFeedTitle'),
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	194 subtitle = '', logo, entries = []} = {}) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	195 this.url = url;
31 76e23b361e92 Allow feed reader addons to subscribe to the currently viewed feed Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 28 diff changeset	196 this.type = type;
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	197 this.title = title;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	198 this.subtitle = subtitle;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	199 this.logo = logo;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	200 this.entries = entries;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	201 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	202 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	203
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	204 export class FeedParser {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	205 static probeFeed(feedDocument) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	206 let documentElement = feedDocument.documentElement;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	207 if (documentElement.nodeName === 'feed' &&
15 150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	208 documentElement.namespaceURI === XMLNS.ATOM03) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	209 return ['atom', '0.3'];
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	210 } else if (documentElement.nodeName === 'feed' &&
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	211 documentElement.namespaceURI === XMLNS.ATOM10) {
15 150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	212 return ['atom', '1.0'];
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	213 } else if (documentElement.nodeName === 'rss') {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	214 let version = documentElement.getAttribute('version');
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	215 switch (version) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	216 case '0.90':
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	217 case '0.91':
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	218 case '0.92':
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	219 case '0.93':
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	220 case '0.94':
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	221 case '2.0':
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	222 return ['rss', version];
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	223 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	224 } else if (documentElement.localName.toLowerCase() === 'rdf' &&
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	225 documentElement.getAttribute('xmlns') === XMLNS.RSS09) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	226 return ['rss', '0.9'];
19 3fcd2209b39a Add support for RSS 1.0 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 18 diff changeset	227 } else if (documentElement.localName.toLowerCase() === 'rdf' &&
3fcd2209b39a Add support for RSS 1.0 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 18 diff changeset	228 documentElement.getAttribute('xmlns') === XMLNS.RSS10) {
3fcd2209b39a Add support for RSS 1.0 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 18 diff changeset	229 return ['rss', '1.0'];
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	230 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	231
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	232 return [undefined, undefined];
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	233 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	234
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	235 constructor() {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	236 this.url = undefined;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	237 this.document = undefined;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	238 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	239
15 150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	240 parseAtom03ContentConstruct(containerElement, textOnly = true) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	241 let contentType = containerElement.getAttribute('type');
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	242 let contentMode = containerElement.getAttribute('mode');
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	243 if (contentType === null) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	244 contentType = 'text/plain';
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	245 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	246 if (contentMode === null) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	247 contentMode = 'xml';
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	248 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	249 if (contentType === 'application/xhtml+xml') {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	250 let htmlText;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	251 if (contentMode === 'xml') {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	252 return textOnly ? containerElement.textContent.trim() :
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	253 containerElement.innerHTML;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	254 } else if (contentMode === 'escaped') {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	255 htmlText = containerElement.textContent;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	256 } else if (contentMode === 'base64') {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	257 htmlText = base64Decode(containerElement.textContent);
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	258 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	259 if (typeof htmlText === 'undefined') {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	260 return;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	261 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	262 if (textOnly) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	263 let htmlDocument = new DOMParser().parseFromString(htmlText,
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	264 'application/xhtml+xml');
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	265 if (htmlDocument.documentElement.namespaceURI ===
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	266 XMLNS.PARSERERROR) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	267 return;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	268 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	269 return htmlDocument.body.textContent.trim();
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	270 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	271 return htmlText;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	272 } else if (contentType === 'text/html') {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	273 let htmlText;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	274 if (contentMode === 'escaped') {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	275 htmlText = containerElement.textContent;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	276 } else if (contentMode === 'base64') {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	277 htmlText = base64Decode(containerElement.textContent);
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	278 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	279 if (typeof htmlText === 'undefined') {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	280 return;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	281 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	282 if (textOnly) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	283 let htmlDocument = new DOMParser().parseFromString(htmlText,
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	284 'text/html');
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	285 return htmlDocument.body.textContent.trim();
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	286 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	287 return htmlText;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	288 } else if (contentType === 'text/plain') {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	289 let text;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	290 if (contentMode === 'escaped') {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	291 text = containerElement.textContent;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	292 } else if (contentMode === 'base64') {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	293 text = base64Decode(containerElement.textContent);
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	294 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	295 if (typeof text === 'undefined') {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	296 return;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	297 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	298 return textOnly ? text : `<pre>${encodeXML(text)}</pre>`;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	299 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	300 return;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	301 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	302
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	303 parseAtom03Content(contentElement) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	304 // ordered from lowest to highest preference
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	305 const contentTypes = [
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	306 'text/plain',
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	307 'text/html',
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	308 'application/xhtml+xml'
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	309 ];
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	310 if (contentElement.getAttribute('type') === 'multipart/alternative' &&
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	311 contentElement.getAttribute('mode') === null) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	312 // select alternative according to above preference
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	313 let selectedTypeIndex = -1;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	314 let selectedElement;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	315 for (let innerContentElement of contentElement.children) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	316 if (innerContentElement.localName !== 'content' \|\|
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	317 innerContentElement.namespaceURI !== XMLNS.ATOM03) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	318 throw new TypeError('child elements of a multipart ' +
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	319 ' content elements must be content elements');
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	320 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	321 let innerContentType = innerContentElement.getAttribute('type');
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	322 if (innerContentType === null) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	323 innerContentType = 'text/plain';
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	324 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	325 let typeIndex = contentTypes.indexOf(innerContentType);
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	326 if (typeIndex > selectedTypeIndex) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	327 selectedTypeIndex = typeIndex;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	328 selectedElement = innerContentElement;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	329 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	330 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	331 if (selectedTypeIndex >= 0) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	332 contentElement = selectedElement;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	333 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	334 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	335
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	336 return this.parseAtom03ContentConstruct(contentElement, false);
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	337 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	338
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	339 parseAtom03Entry(entryElement) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	340 let title;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	341 let link;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	342 let date;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	343 let content;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	344 let titleElement = feedQueryXPath(this.document, entryElement,
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	345 './atom03:title');
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	346 if (titleElement !== null) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	347 title = titleElement.textContent.trim();
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	348 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	349
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	350 let linkElement = feedQueryXPath(this.document, entryElement,
28 104a1faebd43 Fix XPath query syntax Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 25 diff changeset	351 './atom03:link[@href][contains(concat(" ", ' +
104a1faebd43 Fix XPath query syntax Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 25 diff changeset	352 'normalize-space(@rel), " "), " alternate ")]');
15 150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	353 if (linkElement !== null) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	354 link = parseURL(linkElement.getAttribute('href'), this.url);
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	355 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	356
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	357 let modifiedElement = feedQueryXPath(this.document, entryElement,
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	358 './atom03:modified');
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	359 if (modifiedElement !== null) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	360 date = parseDate(modifiedElement.textContent);
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	361 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	362
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	363 let contentElement = feedQueryXPath(this.document, entryElement,
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	364 './atom03:content');
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	365 if (contentElement !== null) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	366 try {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	367 content = this.parseAtom03Content(contentElement);
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	368 } catch (e) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	369 if (!(e instanceof TypeError)) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	370 throw e;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	371 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	372 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	373 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	374 if (typeof content === 'undefined') {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	375 let summaryElement = feedQueryXPath(this.document, entryElement,
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	376 './atom03:summary');
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	377 if (summaryElement !== null) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	378 try {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	379 content = this.parseAtom03ContentConstruct(summaryElement,
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	380 false);
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	381 } catch (e) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	382 if (!(e instanceof TypeError)) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	383 throw e;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	384 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	385 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	386 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	387 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	388
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	389 return new FeedEntry({title, link, date, content});
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	390 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	391
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	392 parseAtom03Feed() {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	393 let title;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	394 let subtitle;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	395 let logo;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	396 let entries = [];
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	397 let documentElement = this.document.documentElement;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	398
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	399 let titleElement = feedQueryXPath(this.document, documentElement,
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	400 './atom03:title');
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	401 if (titleElement !== null) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	402 try {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	403 title = this.parseAtom03ContentConstruct(titleElement);
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	404 } catch (e) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	405 if (!(e instanceof TypeError)) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	406 throw e;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	407 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	408 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	409 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	410
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	411 let taglineElement = feedQueryXPath(this.document, documentElement,
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	412 './atom03:tagline');
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	413 if (taglineElement !== null) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	414 try {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	415 title = this.parseAtom03ContentConstruct(taglineElement);
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	416 } catch (e) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	417 if (!(e instanceof TypeError)) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	418 throw e;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	419 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	420 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	421 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	422
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	423 let logoElement = feedQueryXPath(this.document, documentElement,
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	424 './atom03:logo');
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	425 if (logoElement !== null) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	426 try {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	427 logo = this.parseAtomLogo(logoElement);
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	428 } catch (e) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	429 if (!(e instanceof TypeError)) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	430 throw e;
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	431 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	432 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	433 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	434
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	435 let entryElements = feedQueryXPathAll(this.document, documentElement,
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	436 './atom03:entry');
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	437 for (let entryElement of entryElements) {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	438 entries.push(this.parseAtom03Entry(entryElement));
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	439 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	440
31 76e23b361e92 Allow feed reader addons to subscribe to the currently viewed feed Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 28 diff changeset	441 return new Feed(this.url, 'application/atom+xml',
76e23b361e92 Allow feed reader addons to subscribe to the currently viewed feed Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 28 diff changeset	442 {title, subtitle, logo, entries});
15 150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	443 }
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	444
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	445 parseAtomLogo(logoElement) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	446 let url = parseURL(logoElement.textContent.trim(), this.url);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	447 if (url === null) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	448 throw new TypeError('invalid URL in <logo> element');
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	449 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	450 return new FeedLogo(url);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	451 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	452
14 376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	453 parseAtomTextConstruct(containerElement, textOnly = true) {
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	454 let contentType = containerElement.getAttribute('type');
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	455 if (contentType === null) {
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	456 contentType = 'text';
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	457 }
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	458
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	459 if (contentType === 'xhtml') {
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	460 let xhtmlRootElement = containerElement.firstElementChild;
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	461 if (xhtmlRootElement !== null &&
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	462 xhtmlRootElement.localName === 'div' &&
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	463 xhtmlRootElement.namespaceURI === XMLNS.XHTML) {
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	464 return textOnly ? xhtmlRootElement.textContent.trim() :
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	465 xhtmlRootElement.innerHTML;
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	466 }
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	467 } else if (contentType === 'html') {
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	468 let htmlText = containerElement.textContent;
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	469 if (textOnly) {
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	470 let htmlDocument = new DOMParser().parseFromString(htmlText,
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	471 'text/html');
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	472 return htmlDocument.body.textContent.trim();
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	473 }
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	474 return htmlText
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	475 } else if (contentType === 'text') {
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	476 let text = containerElement.textContent.trim();
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	477 return textOnly ? text : `<pre>${encodeXML(text)}</pre>`;
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	478 }
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	479
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	480 // unsupported content type
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	481 return;
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	482 }
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	483
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	484 parseAtomContent(contentElement) {
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	485 let contentSrc = contentElement.getAttribute('src');
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	486 if (contentSrc !== null) {
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	487 // externally referenced content is not supported
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	488 return;
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	489 }
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	490 return this.parseAtomTextConstruct(contentElement, false);
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	491 }
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	492
17 48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	493 parseAtomEntryFile(enclosureElement) {
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	494 let type;
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	495 let size;
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	496 let url = parseURL(enclosureElement.getAttribute('href'), this.url);
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	497 if (url === null) {
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	498 throw new TypeError('invalid URL in enclosure href attribute');
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	499 }
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	500
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	501 let typeAttribute = enclosureElement.getAttribute('type');
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	502 if (typeAttribute !== null) {
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	503 type = typeAttribute;
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	504 }
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	505
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	506 let length = parseInt(enclosureElement.getAttribute('length'), 10);
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	507 if (!isNaN(length)) {
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	508 size = length;
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	509 }
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	510
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	511 return new FeedEntryFile(url, {type, size});
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	512 }
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	513
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	514 parseAtomEntry(entryElement) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	515 let title;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	516 let link;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	517 let date;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	518 let content;
17 48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	519 let files = [];
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	520 let titleElement = feedQueryXPath(this.document, entryElement,
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	521 './atom:title');
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	522 if (titleElement !== null) {
14 376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	523 title = this.parseAtomTextConstruct(titleElement);
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	524 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	525
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	526 let linkElement = feedQueryXPath(this.document, entryElement,
28 104a1faebd43 Fix XPath query syntax Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 25 diff changeset	527 './atom:link[@href][not(@rel) or contains(concat(" ", ' +
104a1faebd43 Fix XPath query syntax Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 25 diff changeset	528 'normalize-space(@rel), " "), " alternate ")]');
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	529 if (linkElement !== null) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	530 link = parseURL(linkElement.getAttribute('href'), this.url);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	531 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	532
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	533 let updatedElement = feedQueryXPath(this.document, entryElement,
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	534 './atom:updated');
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	535 if (updatedElement !== null) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	536 date = parseDate(updatedElement.textContent);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	537 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	538
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	539 let contentElement = feedQueryXPath(this.document, entryElement,
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	540 './atom:content');
14 376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	541 if (contentElement !== null) {
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	542 content = this.parseAtomContent(contentElement);
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	543 }
14 376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	544 if (typeof content === 'undefined') {
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	545 let summaryElement = feedQueryXPath(this.document, entryElement,
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	546 './atom:summary');
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	547 if (summaryElement !== null) {
376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	548 content = this.parseAtomTextConstruct(summaryElement, false);
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	549 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	550 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	551
17 48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	552 for (let enclosureElement of feedQueryXPathAll(this.document,
28 104a1faebd43 Fix XPath query syntax Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 25 diff changeset	553 entryElement, './atom:link[@href]' +
104a1faebd43 Fix XPath query syntax Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 25 diff changeset	554 '[contains(concat(" ", normalize-space(@rel), " "), ' +
104a1faebd43 Fix XPath query syntax Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 25 diff changeset	555 '" enclosure ")]')) {
17 48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	556 try {
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	557 let entryFile = this.parseAtomEntryFile(enclosureElement);
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	558 files.push(entryFile);
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	559 } catch (e) {
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	560 if (!(e instanceof TypeError)) {
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	561 throw e;
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	562 }
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	563 }
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	564 }
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	565
48cabd01ef64 Add support for enclosures in Atom feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 15 diff changeset	566 return new FeedEntry({title, link, date, content, files});
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	567 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	568
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	569 parseAtomFeed() {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	570 let title;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	571 let subtitle;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	572 let logo;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	573 let entries = [];
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	574 let documentElement = this.document.documentElement;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	575
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	576 let titleElement = feedQueryXPath(this.document, documentElement,
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	577 './atom:title');
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	578 if (titleElement !== null) {
14 376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	579 title = this.parseAtomTextConstruct(titleElement);
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	580 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	581
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	582 let subtitleElement = feedQueryXPath(this.document, documentElement,
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	583 './atom:subtitle');
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	584 if (subtitleElement !== null) {
14 376a0e415bba Properly handle non-text content in Atom feed elements Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 7 diff changeset	585 subtitle = this.parseAtomTextConstruct(subtitleElement);
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	586 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	587
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	588 let logoElement = feedQueryXPath(this.document, documentElement,
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	589 './atom:logo');
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	590 if (logoElement !== null) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	591 try {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	592 logo = this.parseAtomLogo(logoElement);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	593 } catch (e) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	594 if (!(e instanceof TypeError)) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	595 throw e;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	596 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	597 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	598 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	599
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	600 let entryElements = feedQueryXPathAll(this.document, documentElement,
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	601 './atom:entry');
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	602 for (let entryElement of entryElements) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	603 entries.push(this.parseAtomEntry(entryElement));
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	604 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	605
31 76e23b361e92 Allow feed reader addons to subscribe to the currently viewed feed Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 28 diff changeset	606 return new Feed(this.url, 'application/atom+xml',
76e23b361e92 Allow feed reader addons to subscribe to the currently viewed feed Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 28 diff changeset	607 {title, subtitle, logo, entries});
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	608 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	609
19 3fcd2209b39a Add support for RSS 1.0 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 18 diff changeset	610 parseRSS1Logo(imageElement, nsPrefix) {
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	611 let title;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	612 let urlElement = feedQueryXPath(this.document, imageElement,
19 3fcd2209b39a Add support for RSS 1.0 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 18 diff changeset	613 `./${nsPrefix}:url`);
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	614 if (urlElement === null) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	615 throw new TypeError('missing <url> element in <logo> element');
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	616 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	617 let url = parseURL(urlElement.textContent.trim(), this.url);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	618 if (url === null) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	619 throw new TypeError('invalid URL in <logo> element');
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	620 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	621
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	622 let titleElement = feedQueryXPath(this.document, imageElement,
19 3fcd2209b39a Add support for RSS 1.0 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 18 diff changeset	623 `./${nsPrefix}:title`);
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	624 if (titleElement !== null) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	625 title = titleElement.textContent.trim();
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	626 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	627
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	628 return new FeedLogo(url, {title});
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	629 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	630
19 3fcd2209b39a Add support for RSS 1.0 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 18 diff changeset	631 parseRSS1Entry(itemElement, nsPrefix) {
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	632 let title;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	633 let link;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	634 let titleElement = feedQueryXPath(this.document, itemElement,
19 3fcd2209b39a Add support for RSS 1.0 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 18 diff changeset	635 `./${nsPrefix}:title`);
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	636 if (titleElement !== null) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	637 title = titleElement.textContent;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	638 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	639
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	640 let linkElement = feedQueryXPath(this.document, itemElement,
19 3fcd2209b39a Add support for RSS 1.0 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 18 diff changeset	641 `./${nsPrefix}:link`);
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	642 if (linkElement !== null) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	643 link = parseURL(linkElement.textContent, this.url);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	644 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	645
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	646 return new FeedEntry({title, link});
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	647 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	648
19 3fcd2209b39a Add support for RSS 1.0 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 18 diff changeset	649 parseRSS1Feed(version) {
3fcd2209b39a Add support for RSS 1.0 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 18 diff changeset	650 let nsPrefix = version === '0.9' ? 'rss09' : 'rss10';
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	651 let title;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	652 let subtitle;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	653 let logo;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	654 let entries = [];
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	655 let documentElement = this.document.documentElement;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	656 let titleElement = feedQueryXPath(this.document, documentElement,
19 3fcd2209b39a Add support for RSS 1.0 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 18 diff changeset	657 `./${nsPrefix}:channel/${nsPrefix}:title`);
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	658 if (titleElement !== null) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	659 title = titleElement.textContent;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	660 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	661
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	662 let descriptionElement = feedQueryXPath(this.document, documentElement,
19 3fcd2209b39a Add support for RSS 1.0 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 18 diff changeset	663 `./${nsPrefix}:channel/${nsPrefix}:description`);
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	664 if (descriptionElement !== null) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	665 subtitle = descriptionElement.textContent;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	666 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	667
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	668 let imageElement = feedQueryXPath(this.document, documentElement,
19 3fcd2209b39a Add support for RSS 1.0 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 18 diff changeset	669 `./${nsPrefix}:image`);
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	670 if (imageElement !== null) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	671 try {
19 3fcd2209b39a Add support for RSS 1.0 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 18 diff changeset	672 logo = this.parseRSS1Logo(imageElement, nsPrefix);
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	673 } catch (e) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	674 if (!(e instanceof TypeError)) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	675 throw e;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	676 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	677 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	678 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	679
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	680 let itemElements = feedQueryXPathAll(this.document, documentElement,
19 3fcd2209b39a Add support for RSS 1.0 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 18 diff changeset	681 `./${nsPrefix}:item`);
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	682 for (let itemElement of itemElements) {
19 3fcd2209b39a Add support for RSS 1.0 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 18 diff changeset	683 let entry = this.parseRSS1Entry(itemElement, nsPrefix);
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	684 if (typeof entry !== 'undefined') {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	685 entries.push(entry);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	686 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	687 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	688
31 76e23b361e92 Allow feed reader addons to subscribe to the currently viewed feed Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 28 diff changeset	689 return new Feed(this.url, 'application/rss+xml',
76e23b361e92 Allow feed reader addons to subscribe to the currently viewed feed Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 28 diff changeset	690 {title, subtitle, logo, entries});
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	691 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	692
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	693 parseRSS2Logo(imageElement) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	694 let title;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	695 let urlElement = feedQueryXPath(this.document, imageElement, './url');
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	696 if (urlElement === null) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	697 throw new TypeError('missing <url> element in <logo> element');
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	698 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	699 let url = parseURL(urlElement.textContent.trim(), this.url);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	700 if (url === null) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	701 throw new TypeError('invalid URL in <logo> element');
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	702 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	703
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	704 let titleElement = feedQueryXPath(this.document, imageElement,
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	705 './title');
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	706 if (titleElement !== null) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	707 title = titleElement.textContent.trim();
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	708 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	709
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	710 return new FeedLogo(url, {title});
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	711 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	712
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	713 parseRSS2EntryFile(enclosureElement) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	714 let type;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	715 let size;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	716 let url = parseURL(enclosureElement.getAttribute('url'), this.url);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	717 if (url === null) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	718 throw new TypeError('invalid URL in <enclosure> element');
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	719 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	720
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	721 let typeAttribute = enclosureElement.getAttribute('type');
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	722 if (typeAttribute !== null) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	723 type = typeAttribute;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	724 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	725
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	726 let length = parseInt(enclosureElement.getAttribute('length'),
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	727 10);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	728 if (!isNaN(length)) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	729 size = length;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	730 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	731
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	732 return new FeedEntryFile(url, {type, size});
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	733 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	734
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	735 parseRSS2Entry(itemElement) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	736 let title;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	737 let link;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	738 let date;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	739 let content;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	740 let files = [];
48 d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	741 let titleElement;
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	742 let dateElement;
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	743 let contentElement;
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	744
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	745 titleElement = feedQueryXPath(this.document, itemElement,
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	746 './dc:title');
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	747 if (titleElement === null) {
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	748 titleElement = feedQueryXPath(this.document, itemElement,
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	749 './title');
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	750 }
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	751 if (titleElement !== null) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	752 title = titleElement.textContent;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	753 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	754
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	755 let linkElement = feedQueryXPath(this.document, itemElement, './link');
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	756 if (linkElement !== null) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	757 link = parseURL(linkElement.textContent, this.url);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	758 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	759
48 d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	760 dateElement = feedQueryXPath(this.document, itemElement, './dc:date');
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	761 if (dateElement === null) {
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	762 dateElement = feedQueryXPath(this.document, itemElement,
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	763 './pubDate');
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	764 }
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	765 if (dateElement !== null) {
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	766 date = parseDate(dateElement.textContent);
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	767 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	768
48 d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	769 contentElement = feedQueryXPath(this.document, itemElement,
47 b68880838990 Add support for the RSS Content module to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 31 diff changeset	770 './content:encoded');
48 d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	771 if (contentElement === null) {
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	772 contentElement = feedQueryXPath(this.document, itemElement,
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	773 './dc:description');
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	774 }
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	775 if (contentElement === null) {
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	776 contentElement = feedQueryXPath(this.document, itemElement,
47 b68880838990 Add support for the RSS Content module to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 31 diff changeset	777 './description');
48 d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	778 }
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	779 if (contentElement !== null) {
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	780 content = contentElement.textContent.trim();
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	781 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	782
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	783 for (let enclosureElement of
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	784 feedQueryXPathAll(this.document, itemElement, './enclosure')) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	785 try {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	786 let entryFile = this.parseRSS2EntryFile(enclosureElement);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	787 files.push(entryFile);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	788 } catch (e) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	789 if (!(e instanceof TypeError)) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	790 throw e;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	791 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	792 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	793 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	794
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	795 return new FeedEntry({title, link, date, content, files});
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	796 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	797
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	798 parseRSS2Feed() {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	799 let title;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	800 let subtitle;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	801 let logo;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	802 let entries = [];
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	803 let documentElement = this.document.documentElement;
48 d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	804 let titleElement;
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	805 let descriptionElement;
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	806
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	807
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	808 titleElement = feedQueryXPath(this.document, documentElement,
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	809 './channel/dc:title');
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	810 if (titleElement === null) {
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	811 titleElement = feedQueryXPath(this.document, documentElement,
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	812 './channel/title');
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	813 }
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	814 if (titleElement !== null) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	815 title = titleElement.textContent;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	816 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	817
48 d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	818 descriptionElement = feedQueryXPath(this.document, documentElement,
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	819 './channel/dc:description');
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	820 if (descriptionElement === null) {
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	821 descriptionElement = feedQueryXPath(this.document, documentElement,
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	822 './channel/description');
d5506fdb65f0 Add support for Dublin Core elements to the RSS 2.0 feed parser Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 47 diff changeset	823 }
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	824 if (descriptionElement !== null) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	825 subtitle = descriptionElement.textContent;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	826 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	827
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	828 let imageElement = feedQueryXPath(this.document, documentElement,
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	829 './channel/image');
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	830 if (imageElement !== null) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	831 try {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	832 logo = this.parseRSS2Logo(imageElement);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	833 } catch (e) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	834 if (!(e instanceof TypeError)) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	835 throw e;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	836 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	837 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	838 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	839
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	840 let itemElements = feedQueryXPathAll(this.document, documentElement,
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	841 './channel/item');
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	842 for (let itemElement of itemElements) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	843 let entry = this.parseRSS2Entry(itemElement);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	844 if (typeof entry !== 'undefined') {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	845 entries.push(entry);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	846 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	847 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	848
31 76e23b361e92 Allow feed reader addons to subscribe to the currently viewed feed Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 28 diff changeset	849 return new Feed(this.url, 'application/rss+xml',
76e23b361e92 Allow feed reader addons to subscribe to the currently viewed feed Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 28 diff changeset	850 {title, subtitle, logo, entries});
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	851 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	852
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	853 parseFromString(xmlString, url) {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	854 this.url = url;
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	855 this.document = new DOMParser().parseFromString(xmlString,
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	856 'application/xml');
15 150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	857 if (this.document.documentElement.namespaceURI === XMLNS.PARSERERROR) {
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	858 throw new ParserError(this.document.documentElement.textContent);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	859 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	860
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	861 let [type, version] = this.constructor.probeFeed(this.document);
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	862 if (type === 'atom') {
15 150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	863 if (version === '0.3') {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	864 return this.parseAtom03Feed();
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	865 } else if (version === '1.0') {
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	866 return this.parseAtomFeed();
150f07c7595f Add support for Atom 0.3 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 14 diff changeset	867 }
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	868 } else if (type === 'rss') {
19 3fcd2209b39a Add support for RSS 1.0 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 18 diff changeset	869 if (version === '0.9' \|\| version === '1.0') {
3fcd2209b39a Add support for RSS 1.0 feeds Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: 18 diff changeset	870 return this.parseRSS1Feed(version);
6 5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	871 } else {
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	872 return this.parseRSS2Feed();
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	873 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	874 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	875 throw new UnsupportedFeedTypeError();
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	876 }
5d7c13e998e9 Create feed previews using a stream filter Guido Berhoerster <guido+feed-preview@berhoerster.name> parents: diff changeset	877 }