Mercurial > addons > firefox-addons > feed-preview

annotate content_scripts/feed-preview.js @ 5:341a0f4b7ce0

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Handle feed entry content normalization with a setter
author Guido Berhoerster <guido+feed-preview@berhoerster.name>
date Sun, 04 Nov 2018 10:03:05 +0100
parents 086ee559acbb
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
1 /*
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
2 * Copyright (C) 2018 Guido Berhoerster <guido+feed-preview@berhoerster.name>
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
3 *
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
4 * This Source Code Form is subject to the terms of the Mozilla Public
bc5cc170163c Initial revision
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
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
6 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
7 */
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
8
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
9 'use strict';
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
10
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
11 const ALLOWED_PROTOCOLS = new Set(['http:', 'https:', 'ftp:']);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
12
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
13 function encodeXML(str) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
14 return str.replace(/[<>&'"]/g, c => {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
15 switch (c) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
16 case '<': return '&lt;';
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
17 case '>': return '&gt;';
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
18 case '&': return '&amp;';
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
19 case '\'': return '&apos;';
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
20 case '"': return '&quot;';
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
21 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
22 });
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
23 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
24
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
25 function parseDate(s) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
26 let date = new Date(s);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
27
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
28 return isNaN(date) ? new Date(0) : date;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
29 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
30
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
31 function parseURL(text, baseURL = window.location.href) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
32 let url;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
33
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
34 try {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
35 url = new URL(text, baseURL);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
36 } catch (e) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
37 return null;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
38 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
39 if (!ALLOWED_PROTOCOLS.has(url.protocol)) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
40 return null;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
41 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
42
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
43 return url;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
44 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
45
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
46 function feedNSResolver(prefix) {
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
47 switch (prefix) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
48 case 'atom':
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
49 return 'http://www.w3.org/2005/Atom'
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
50 case 'rss':
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
51 return 'http://my.netscape.com/rdf/simple/0.9/'
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
52 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
53 return null;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
54 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
55
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
56 function feedQueryXPath(feedDocument, scopeElement, xpathQuery) {
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
57 return feedDocument.evaluate(xpathQuery, scopeElement, feedNSResolver,
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
58 XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
59 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
60
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
61 function feedQueryXPathAll(feedDocument, scopeElement, xpathQuery) {
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
62 let result = feedDocument.evaluate(xpathQuery, scopeElement, feedNSResolver,
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
63 XPathResult.ORDERED_NODE_ITERATOR_TYPE, null);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
64 let nodes = [];
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
65 for (let node = result.iterateNext(); node !== null;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
66 node = result.iterateNext()) {
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
67 nodes.push(node);
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
68 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
69
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
70 return nodes;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
71 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
72
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
73 class FeedLogo {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
74 constructor(url, title = '') {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
75 this.url = url;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
76 this.title = title;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
77 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
78 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
79
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
80 class RSS1Logo extends FeedLogo {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
81 constructor(feedDocument, imageElement) {
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
82 let urlElement = feedQueryXPath(feedDocument, imageElement,
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
83 './rss:url');
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
84 if (urlElement === null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
85 throw new TypeError('missing <url> element in <logo> element');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
86 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
87 let url = parseURL(urlElement.textContent.trim());
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
88 if (url === null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
89 throw new TypeError('invalid URL in <logo> element');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
90 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
91 super(url);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
92
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
93 let titleElement = feedQueryXPath(feedDocument, imageElement,
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
94 './rss:title');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
95 if (titleElement !== null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
96 this.title = titleElement.textContent.trim();
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
97 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
98 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
99 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
100
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
101 class RSS2Logo extends FeedLogo {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
102 constructor(feedDocument, imageElement) {
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
103 let urlElement = feedQueryXPath(feedDocument, imageElement, './url');
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
104 if (urlElement === null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
105 throw new TypeError('missing <url> element in <logo> element');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
106 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
107 let url = parseURL(urlElement.textContent.trim());
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
108 if (url === null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
109 throw new TypeError('invalid URL in <logo> element');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
110 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
111 super(url);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
112
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
113 let titleElement = feedQueryXPath(feedDocument, imageElement,
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
114 './title');
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
115 if (titleElement !== null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
116 this.title = titleElement.textContent.trim();
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
117 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
118 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
119 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
120
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
121 class AtomLogo extends FeedLogo {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
122 constructor(logoElement) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
123 let url = parseURL(logoElement.textContent.trim());
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
124 if (url === null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
125 throw new TypeError('invalid URL in <logo> element');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
126 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
127 super(url);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
128 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
129 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
130
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
131 class FeedEntryFile {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
132 constructor(url, type = browser.i18n.getMessage('defaultFileType'),
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
133 size = 0) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
134 this.url = url;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
135 let filename = url.pathname.split('/').pop();
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
136 this.filename = filename !== '' ? filename :
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
137 browser.i18n.getMessage('defaultFileName');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
138 this.type = type;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
139 this.size = size;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
140 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
141 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
142
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
143 class RSS2EntryFile extends FeedEntryFile {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
144 constructor(enclosureElement) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
145 let url = parseURL(enclosureElement.getAttribute('url'));
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
146 if (url === null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
147 throw new TypeError('invalid URL in <enclosure> element');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
148 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
149 super(url);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
150
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
151 let type = enclosureElement.getAttribute('type');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
152 if (type !== null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
153 this.type = type;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
154 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
155
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
156 let size = parseInt(enclosureElement.getAttribute('length'), 10);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
157 if (!isNaN(size)) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
158 this.size = size;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
159 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
160 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
161 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
162
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
163 class FeedEntry {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
164 constructor(title = browser.i18n.getMessage('defaultFeedEntryTitle'),
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
165 url = null, date = new Date(0), content = '', files = []) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
166 this.title = title;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
167 this.url = url;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
168 this.date = date;
5
341a0f4b7ce0 Handle feed entry content normalization with a setter
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 4
diff changeset
169 this._content;
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
170 this.content = content;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
171 this.files = files;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
172 }
5
341a0f4b7ce0 Handle feed entry content normalization with a setter
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 4
diff changeset
173
341a0f4b7ce0 Handle feed entry content normalization with a setter
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 4
diff changeset
174 set content(content) {
341a0f4b7ce0 Handle feed entry content normalization with a setter
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 4
diff changeset
175 this._content = this.normalizeContent(content);
341a0f4b7ce0 Handle feed entry content normalization with a setter
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 4
diff changeset
176 }
341a0f4b7ce0 Handle feed entry content normalization with a setter
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 4
diff changeset
177
341a0f4b7ce0 Handle feed entry content normalization with a setter
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 4
diff changeset
178 get content() {
341a0f4b7ce0 Handle feed entry content normalization with a setter
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 4
diff changeset
179 return this._content;
341a0f4b7ce0 Handle feed entry content normalization with a setter
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 4
diff changeset
180 }
341a0f4b7ce0 Handle feed entry content normalization with a setter
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 4
diff changeset
181
341a0f4b7ce0 Handle feed entry content normalization with a setter
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 4
diff changeset
182 normalizeContent(text) {
341a0f4b7ce0 Handle feed entry content normalization with a setter
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 4
diff changeset
183 let parsedDocument = new DOMParser().parseFromString(text, 'text/html');
341a0f4b7ce0 Handle feed entry content normalization with a setter
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 4
diff changeset
184
341a0f4b7ce0 Handle feed entry content normalization with a setter
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 4
diff changeset
185 let linkElement = parsedDocument.createElement('link');
341a0f4b7ce0 Handle feed entry content normalization with a setter
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 4
diff changeset
186 linkElement.rel = 'stylesheet';
341a0f4b7ce0 Handle feed entry content normalization with a setter
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 4
diff changeset
187 linkElement.href ='style/entry-content.css';
341a0f4b7ce0 Handle feed entry content normalization with a setter
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 4
diff changeset
188 parsedDocument.head.appendChild(linkElement);
341a0f4b7ce0 Handle feed entry content normalization with a setter
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 4
diff changeset
189
341a0f4b7ce0 Handle feed entry content normalization with a setter
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 4
diff changeset
190 return new XMLSerializer().serializeToString(parsedDocument);
341a0f4b7ce0 Handle feed entry content normalization with a setter
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 4
diff changeset
191 }
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
192 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
193
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
194 class RSS1Entry extends FeedEntry {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
195 constructor(feedDocument, itemElement) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
196 super();
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
197
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
198 let titleElement = feedQueryXPath(feedDocument, itemElement,
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
199 './rss:title');
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
200 if (titleElement !== null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
201 this.title = titleElement.textContent;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
202 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
203
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
204 let linkElement = feedQueryXPath(feedDocument, itemElement,
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
205 './rss:link');
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
206 if (linkElement !== null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
207 this.url = parseURL(linkElement.textContent);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
208 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
209 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
210 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
211
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
212 class RSS2Entry extends FeedEntry {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
213 constructor(feedDocument, itemElement) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
214 super();
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
215
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
216 let titleElement = feedQueryXPath(feedDocument, itemElement, './title');
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
217 if (titleElement !== null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
218 this.title = titleElement.textContent;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
219 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
220
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
221 let linkElement = feedQueryXPath(feedDocument, itemElement, './link');
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
222 if (linkElement !== null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
223 this.url = parseURL(linkElement.textContent);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
224 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
225
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
226 let pubDateElement = feedQueryXPath(feedDocument, itemElement,
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
227 './pubDate');
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
228 if (pubDateElement !== null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
229 this.date = parseDate(pubDateElement.textContent);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
230 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
231
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
232 let descriptionElement = feedQueryXPath(feedDocument, itemElement,
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
233 './description');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
234 if (descriptionElement !== null) {
5
341a0f4b7ce0 Handle feed entry content normalization with a setter
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 4
diff changeset
235 this.content = descriptionElement.textContent.trim();
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
236 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
237
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
238 for (let enclosureElement of
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
239 feedQueryXPathAll(feedDocument, itemElement, './enclosure')) {
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
240 try {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
241 let entryFile = new RSS2EntryFile(enclosureElement);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
242 this.files.push(entryFile);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
243 } catch (e) {}
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
244 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
245 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
246 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
247
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
248 class AtomEntry extends FeedEntry {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
249 constructor(feedDocument, entryElement) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
250 super();
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
251
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
252 let titleElement = feedQueryXPath(feedDocument, entryElement,
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
253 './atom:title');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
254 if (titleElement !== null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
255 this.title = titleElement.textContent.trim();
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
256 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
257
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
258 let linkElement = feedQueryXPath(feedDocument, entryElement,
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
259 './atom:link[@href][@rel="alternate"]');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
260 if (linkElement !== null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
261 this.url = parseURL(linkElement.getAttribute('href'));
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
262 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
263
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
264 let updatedElement = feedQueryXPath(feedDocument, entryElement,
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
265 './atom:updated');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
266 if (updatedElement !== null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
267 this.date = parseDate(updatedElement.textContent);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
268 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
269
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
270 let contentElement = feedQueryXPath(feedDocument, entryElement,
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
271 './atom:content');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
272 if (contentElement === null) {
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
273 contentElement = feedQueryXPath(feedDocument, entryElement,
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
274 './atom:summary');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
275 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
276 if (contentElement !== null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
277 let contentType = contentElement.getAttribute('type');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
278 if (contentType === null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
279 contentType = 'text';
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
280 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
281 contentType = contentType.toLowerCase();
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
282 if (contentType === 'xhtml') {
5
341a0f4b7ce0 Handle feed entry content normalization with a setter
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 4
diff changeset
283 this.content = contentElement.innerHTML;
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
284 } else if (contentType === 'html') {
5
341a0f4b7ce0 Handle feed entry content normalization with a setter
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 4
diff changeset
285 this.content = contentElement.textContent;
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
286 } else {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
287 let encodedContent =
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
288 encodeXML(contentElement.textContent.trim());
5
341a0f4b7ce0 Handle feed entry content normalization with a setter
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 4
diff changeset
289 this.content = `<pre>${encodedContent}</pre>`;
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
290 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
291 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
292 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
293 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
294
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
295 class Feed {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
296 constructor(title = browser.i18n.getMessage('defaultFeedTitle'),
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
297 subtitle = '', logo = null, entries = []) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
298 this.title = title;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
299 this.subtitle = subtitle;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
300 this.logo = logo;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
301 this.entries = entries;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
302 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
303
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
304 async createPreviewDocument() {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
305 let url = browser.extension.getURL('web_resources/feed-preview.xhtml');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
306 let response;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
307 let text;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
308 try {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
309 response = await fetch(url);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
310 text = await response.text();
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
311 } catch (e) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
312 console.log(`Error: failed to read preview template: ${e.message}`);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
313 return;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
314 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
315 let previewDocument = (new DOMParser()).parseFromString(text,
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
316 'application/xhtml+xml');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
317
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
318 previewDocument.querySelector('base').href =
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
319 browser.extension.getURL('web_resources/');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
320
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
321 previewDocument.querySelector('title').textContent = this.title;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
322 previewDocument.querySelector('#feed-title').textContent = this.title;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
323 previewDocument.querySelector('#feed-subtitle').textContent =
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
324 this.subtitle;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
325 if (this.logo !== null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
326 let feedLogoTemplate =
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
327 previewDocument.querySelector('#feed-logo-template');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
328 let logoNode = previewDocument.importNode(feedLogoTemplate.content,
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
329 true);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
330 let imgElement = logoNode.querySelector('#feed-logo');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
331 imgElement.setAttribute('src', this.logo.url);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
332 imgElement.setAttribute('alt', this.logo.title);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
333 previewDocument.querySelector('#feed-header').prepend(logoNode);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
334 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
335
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
336 let entryTemplateElement =
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
337 previewDocument.querySelector('#entry-template');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
338 let entryTitleTemplateElement =
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
339 previewDocument.querySelector('#entry-title-template');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
340 let entryTitleLinkedTemplateElement =
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
341 previewDocument.querySelector('#entry-title-linked-template');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
342 let entryFileListTemplateElement =
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
343 previewDocument.querySelector('#entry-files-list-template');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
344 let entryFileTemplateElement =
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
345 previewDocument.querySelector('#entry-file-template');
1
1c31f4102408 Show a hint if the feed has no entries
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 0
diff changeset
346 if (this.entries.length === 0) {
1c31f4102408 Show a hint if the feed has no entries
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 0
diff changeset
347 let hintTemplateElement =
1c31f4102408 Show a hint if the feed has no entries
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 0
diff changeset
348 previewDocument.querySelector('#no-entries-hint-template');
1c31f4102408 Show a hint if the feed has no entries
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 0
diff changeset
349 let hintNode =
1c31f4102408 Show a hint if the feed has no entries
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 0
diff changeset
350 previewDocument.importNode(hintTemplateElement.content,
1c31f4102408 Show a hint if the feed has no entries
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 0
diff changeset
351 true);
1c31f4102408 Show a hint if the feed has no entries
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 0
diff changeset
352 hintNode.querySelector("#no-entries-hint").textContent =
1c31f4102408 Show a hint if the feed has no entries
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 0
diff changeset
353 browser.i18n.getMessage('noEntriesHint');
1c31f4102408 Show a hint if the feed has no entries
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 0
diff changeset
354
1c31f4102408 Show a hint if the feed has no entries
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 0
diff changeset
355 previewDocument.body.append(hintNode);
1c31f4102408 Show a hint if the feed has no entries
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 0
diff changeset
356 }
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
357 for (let entry of this.entries) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
358 let entryNode =
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
359 previewDocument.importNode(entryTemplateElement.content,
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
360 true);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
361 let titleElement;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
362 let titleNode;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
363
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
364 if (entry.url !== null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
365 titleNode = previewDocument
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
366 .importNode(entryTitleLinkedTemplateElement.content,
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
367 true);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
368 titleElement = titleNode.querySelector('.entry-link');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
369 titleElement.href = entry.url;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
370 titleElement.title = entry.title;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
371 } else {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
372 titleNode = previewDocument
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
373 .importNode(entryTitleTemplateElement.content, true);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
374 titleElement = titleNode.querySelector('.entry-title');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
375 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
376 titleElement.textContent = entry.title;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
377 entryNode.querySelector('.entry-header').prepend(titleNode);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
378
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
379 let timeElement = entryNode.querySelector('.entry-date > time');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
380 timeElement.textContent = entry.date.toLocaleString();
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
381
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
382 let contentElement = entryNode.querySelector('.entry-content');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
383 contentElement.srcdoc = entry.content;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
384 contentElement.title = entry.title;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
385
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
386 if (entry.files.length > 0) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
387 let fileListNode = previewDocument
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
388 .importNode(entryFileListTemplateElement.content, true);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
389 fileListNode.querySelector('.entry-files-title').textContent =
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
390 browser.i18n.getMessage('filesTitle');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
391 let fileListElement =
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
392 fileListNode.querySelector('.entry-files-list');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
393
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
394 for (let file of entry.files) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
395 let fileNode = previewDocument
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
396 .importNode(entryFileTemplateElement.content, true);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
397
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
398 let fileLinkElement =
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
399 fileNode.querySelector('.entry-file-link');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
400 fileLinkElement.href = file.url;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
401 fileLinkElement.title = file.filename;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
402 fileLinkElement.textContent = file.filename;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
403
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
404 fileNode.querySelector('.entry-file-info').textContent =
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
405 `(${file.type}, ${file.size} bytes)`;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
406
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
407 fileListElement.appendChild(fileNode);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
408 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
409
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
410 entryNode.querySelector('.entry').append(fileListNode);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
411 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
412
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
413 previewDocument.body.append(entryNode);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
414 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
415
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
416 return previewDocument;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
417 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
418 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
419
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
420 class RSS1Feed extends Feed {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
421 constructor(feedDocument) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
422 super();
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
423
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
424 let documentElement = feedDocument.documentElement;
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
425 let titleElement = feedQueryXPath(feedDocument, documentElement,
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
426 './rss:channel/rss:title');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
427 if (titleElement !== null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
428 this.title = titleElement.textContent;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
429 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
430
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
431 let descriptionElement = feedQueryXPath(feedDocument, documentElement,
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
432 './channel/description');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
433 if (descriptionElement !== null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
434 this.subtitle = descriptionElement.textContent;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
435 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
436
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
437 let imageElement = feedQueryXPath(feedDocument, documentElement,
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
438 './rss:image');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
439 if (imageElement !== null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
440 try {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
441 let logo = new RSS1Logo(feedDocument, imageElement);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
442 this.logo = logo;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
443 } catch (e) {}
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
444 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
445
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
446 let itemElements = feedQueryXPathAll(feedDocument, documentElement,
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
447 './rss:item');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
448 for (let itemElement of itemElements) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
449 let entry = new RSS1Entry(feedDocument, itemElement);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
450 if (typeof entry !== 'undefined') {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
451 this.entries.push(entry);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
452 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
453 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
454 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
455 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
456
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
457 class RSS2Feed extends Feed {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
458 constructor(feedDocument) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
459 super();
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
460
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
461 let documentElement = feedDocument.documentElement;
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
462 let titleElement = feedQueryXPath(feedDocument, documentElement,
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
463 './channel/title');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
464 if (titleElement !== null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
465 this.title = titleElement.textContent;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
466 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
467
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
468 let descriptionElement = feedQueryXPath(feedDocument, documentElement,
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
469 './channel/description');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
470 if (descriptionElement !== null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
471 this.subtitle = descriptionElement.textContent;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
472 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
473
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
474 let imageElement = feedQueryXPath(feedDocument, documentElement,
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
475 './channel/image');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
476 if (imageElement !== null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
477 try {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
478 let logo = new RSS2Logo(feedDocument, imageElement);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
479 this.logo = logo;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
480 } catch (e) {}
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
481 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
482
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
483 let itemElements = feedQueryXPathAll(feedDocument, documentElement,
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
484 './channel/item');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
485 for (let itemElement of itemElements) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
486 let entry = new RSS2Entry(feedDocument, itemElement);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
487 if (typeof entry !== 'undefined') {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
488 this.entries.push(entry);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
489 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
490 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
491 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
492 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
493
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
494 class AtomFeed extends Feed {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
495 constructor(feedDocument, atomVersion) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
496 super();
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
497
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
498 let documentElement = feedDocument.documentElement;
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
499 let titleElement = feedQueryXPath(feedDocument, documentElement,
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
500 './atom:title');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
501 if (titleElement !== null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
502 this.title = titleElement.textContent.trim();
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
503 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
504
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
505 let subtitleElement = feedQueryXPath(feedDocument, documentElement,
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
506 './atom:subtitle');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
507 if (subtitleElement !== null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
508 this.subtitle = subtitleElement.textContent.trim();
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
509 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
510
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
511 let logoElement = feedQueryXPath(feedDocument, documentElement,
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
512 './atom:logo');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
513 if (logoElement !== null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
514 try {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
515 let logo = new AtomLogo(logoElement);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
516 this.logo = logo;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
517 } catch (e) {}
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
518 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
519
4
086ee559acbb Remove unused parameter from xpathQuery and rename functions
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents: 1
diff changeset
520 let entryElements = feedQueryXPathAll(feedDocument, documentElement,
0
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
521 './atom:entry');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
522 for (let entryElement of entryElements) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
523 this.entries.push(new AtomEntry(feedDocument, entryElement));
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
524 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
525 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
526 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
527
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
528 function probeFeedType(feedDocument) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
529 if (feedDocument.documentElement.nodeName === 'feed') {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
530 let version = feedDocument.documentElement.getAttribute('version');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
531 if (version === null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
532 version = '1.0';
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
533 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
534 for (let attr of feedDocument.documentElement.attributes) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
535 if (attr.name === 'xmlns' &&
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
536 attr.value === 'http://www.w3.org/2005/Atom') {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
537 return ['atom', version];
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
538 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
539 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
540 } else if (feedDocument.documentElement.nodeName === 'rss') {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
541 let version = feedDocument.documentElement.getAttribute('version');
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
542 if (version !== null) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
543 return ['rss', version];
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
544 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
545 } else if (feedDocument.documentElement.localName.toLowerCase() === 'rdf') {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
546 for (let attr of feedDocument.documentElement.attributes) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
547 if (attr.name === 'xmlns' &&
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
548 attr.value === 'http://my.netscape.com/rdf/simple/0.9/') {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
549 return ['rss', '0.9'];
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
550 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
551 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
552 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
553
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
554 return [undefined, undefined];
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
555 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
556
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
557 async function replaceDocumentWithPreview(type, version) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
558 let feed;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
559 switch (type) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
560 case 'rss':
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
561 switch (version) {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
562 case '0.9':
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
563 case '1.0':
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
564 feed = new RSS1Feed(document, version);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
565 break;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
566 case '0.90':
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
567 case '0.91':
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
568 case '0.92':
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
569 case '0.93':
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
570 case '0.94':
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
571 case '2.0':
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
572 feed = new RSS2Feed(document, version);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
573 break;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
574 default:
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
575 return;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
576 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
577 break;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
578 case 'atom':
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
579 feed = new AtomFeed(document, version);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
580 break;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
581 default:
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
582 return;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
583 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
584
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
585 // replace original document with preview
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
586 let previewDocument = await feed.createPreviewDocument();
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
587 if (typeof previewDocument === 'undefined') {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
588 return;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
589 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
590 let documentElement = previewDocument.documentElement;
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
591 document.replaceChild(document.importNode(documentElement, true),
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
592 document.documentElement);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
593 }
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
594
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
595 let [type, version] = probeFeedType(document);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
596 if (typeof type !== 'undefined') {
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
597 replaceDocumentWithPreview(type, version);
bc5cc170163c Initial revision
Guido Berhoerster <guido+feed-preview@berhoerster.name>
parents:
diff changeset
598 }