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

annotate js/feed-parser.js @ 35:e527eaffac54

Update Dutch translations

author	Tonnes <tonnes.mb@gmail.com>
date	Wed, 23 Jan 2019 19:50:22 +0100
parents	76e23b361e92
children	b68880838990

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