mirror of
https://github.com/aureliendavid/rsspreview.git
synced 2025-08-23 03:38:44 +00:00
initial commit
This commit is contained in:
Aurelien David
commit
cdf84b50ee
23
background.js
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23
background.js
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function detectFeed(event) {
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// force application/rss+xml to text/xml so the browser displays it instead of downloading
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for (var header of event.responseHeaders) {
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if (header.name.toLowerCase() == "content-type") {
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header.value = header.value.replace(/application\/(rss|atom)\+xml/,'text/xml');
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break;
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}
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}
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return {
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responseHeaders: event.responseHeaders
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};
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}
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browser.webRequest.onHeadersReceived.addListener(
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detectFeed,
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{ urls: ["<all_urls>"], types: ["main_frame"] },
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["blocking", "responseHeaders"]
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)
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BIN
icons/file.png
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BIN
icons/file.png
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Binary file not shown.
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After Width: | Height: | Size: 6.8 KiB |
BIN
icons/rss-48.png
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BIN
icons/rss-48.png
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Binary file not shown.
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After Width: | Height: | Size: 12 KiB |
29
manifest.json
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manifest.json
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{
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"manifest_version": 2,
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"name": "RSSPreview",
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"version": "1.0",
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"description": "Preview RSS feeds in browser",
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"icons": {
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"48": "icons/rss-48.png"
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},
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"background": {
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"scripts": ["background.js"]
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},
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"content_scripts": [
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{
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"matches": ["<all_urls>"],
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"js": ["rsspreview.js"]
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}
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],
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"web_accessible_resources": ["preview.html", "preview.js", "preview.css", "rss.xsl", "icons/file.png"],
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"permissions": ["<all_urls>", "webRequest", "webRequestBlocking"]
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}
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116
preview.css
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116
preview.css
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html {
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font: 3mm tahoma,arial,helvetica,sans-serif;
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background-color: rgb(240, 240, 240);
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}
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body {
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margin: 0;
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padding: 0 3em;
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font: message-box;
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}
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h1 {
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font-size: 160%;
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border-bottom: 2px solid ThreeDLightShadow;
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margin: 0 0 .2em 0;
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}
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h1 a {
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color: inherit;
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text-decoration: none;
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}
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h1 a:hover {
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text-decoration: underline;
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}
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h2 {
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color: GrayText;
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font-size: 110%;
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font-weight: normal;
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margin: 0 0 .6em 0;
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}
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a[href] img {
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border: none;
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}
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#feedBody {
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border: 1px solid THreeDShadow;
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padding: 3em;
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padding-inline-start: 30px;
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margin: 2em auto;
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background-color: white;
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}
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#feedTitleLink {
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float: right;
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margin-inline-start: .6em;
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margin-inline-end: 0;
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margin-top: 0;
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margin-bottom: 0;
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}
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#feedTitleContainer {
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margin-inline-start: 0;
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margin-inline-end: .6em;
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margin-top: 0;
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margin-bottom: 0;
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}
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#feedTitleImage {
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margin-inline-start: .6em;
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margin-inline-end: 0;
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margin-top: 0;
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margin-bottom: 0;
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max-width: 300px;
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max-height: 150px;
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}
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.feedEntryContent {
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font-size: 110%;
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}
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.link {
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color: #0000FF;
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text-decoration: underline;
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cursor: pointer;
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}
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.link:hover:active {
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color: #FF0000;
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}
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.lastUpdated {
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font-size: 85%;
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font-weight: normal;
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}
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.type-icon {
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vertical-align: bottom;
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height: 16px;
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width: 16px;
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}
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.enclosures {
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border: 1px solid THreeDShadow;
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padding: 1em;
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margin: 1em auto;
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background-color: rgb(240, 240, 240);
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}
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.enclosure {
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vertical-align: middle;
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margin-left: 2px;
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}
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.enclosureIcon {
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vertical-align: bottom;
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height: 16px;
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width: 16px;
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margin-right: 3px;
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}
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17
preview.html
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17
preview.html
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<link rel="stylesheet" href="preview.css">
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<link rel="shortcut icon" type="image/png" href="icons/rss-48.png">
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<script src="preview.js" ></script>
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</head>
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<body>
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<div id="feedBody"></div>
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</body>
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</html>
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136
preview.js
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136
preview.js
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document.addEventListener('DOMContentLoaded', function () {
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main();
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});
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function getxml(url) {
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var xhttp = new XMLHttpRequest();
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xhttp.open("GET", url, false);
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xhttp.send(null);
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return xhttp.responseXML;
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}
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function xhrxml(url, cb) {
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var xhr = new XMLHttpRequest();
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xhr.open('GET', url, true);
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xhr.responseType = 'document';
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xhr.overrideMimeType('text/xml');
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xhr.onload = function () {
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if (xhr.readyState === xhr.DONE) {
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if (xhr.status === 200) {
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cb(xhr.responseXML);
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}
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}
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};
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xhr.send(null);
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}
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function applyxsl(xmlin, xsl, node) {
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var xsltProcessor = new XSLTProcessor();
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xsltProcessor.importStylesheet(xsl);
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var fragment = xsltProcessor.transformToFragment(xmlin, document);
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node.appendChild(fragment);
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}
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function formatdescriptions() {
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// unescapes descriptions to html
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var tohtml = document.getElementsByClassName("feedEntryContent");
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for (var i = 0; i<tohtml.length; i++) {
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tohtml[i].innerHTML = tohtml[i].innerText;
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}
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var feed_desc = document.getElementById("feedSubtitleText");
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feed_desc.innerHTML = feed_desc.innerText;
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}
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function removeemptyenclosures() {
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var encs = document.getElementsByClassName("enclosures");
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for (var i = 0; i<encs.length; i++) {
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if (!encs[i].firstChild)
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encs[i].style.display = "none";
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}
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}
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function formatfilenames() {
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var encfn = document.getElementsByClassName("enclosureFilename");
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for (var i = 0; i<encfn.length; i++) {
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var url = new URL(encfn[i].innerText);
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if (url) {
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var fn = url.pathname.split("/").pop();
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if (fn != "") {
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encfn[i].innerText = fn;
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}
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}
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}
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}
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function formatfilesizes() {
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function humanfilesize(size) {
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console.log(size);
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var i = 0;
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if (size && size != "" && size > 0)
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i = Math.floor( Math.log(size) / Math.log(1024) );
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return ( size / Math.pow(1024, i) ).toFixed(2) * 1 + ' ' + ['B', 'kB', 'MB', 'GB', 'TB'][i];
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};
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var encsz = document.getElementsByClassName("enclosureSize");
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for (var i = 0; i<encsz.length; i++) {
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var hsize = humanfilesize(encsz[i].innerText);
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if (hsize) {
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encsz[i].innerText = hsize;
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}
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}
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}
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function main() {
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var query_string = location.search.substring(1).split("&");
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var feed_url = decodeURIComponent(query_string[0]);
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xhrxml(feed_url, function(feed_xml) {
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xhrxml(chrome.extension.getURL("rss.xsl"), function(xsl_xml) {
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applyxsl(feed_xml, xsl_xml, document.getElementById("feedBody"));
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removeemptyenclosures();
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formatdescriptions();
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formatfilenames();
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formatfilesizes();
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document.title = "RSSPreview: " + document.getElementById("feedTitleText").innerText;
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});
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});
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}
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77
rss.xsl
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77
rss.xsl
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<?xml version="1.0" encoding="utf-8"?>
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<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
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xmlns:atom="http://www.w3.org/2005/Atom" exclude-result-prefixes="atom" >
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<xsl:output method="html" indent="yes" encoding="utf-8" />
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<xsl:template match="channel | atom:feed">
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<div id="feedTitle">
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<a id="feedTitleLink">
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<img id="feedTitleImage" src="{image/url | atom:logo}" />
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</a>
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<div id="feedTitleContainer">
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<h1 id="feedTitleText" >
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<a href="{link | atom:link[@rel='alternate']/@href}" target="_blank">
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<xsl:value-of select="title | atom:title" />
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</a>
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</h1>
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<h2 id="feedSubtitleText" ><xsl:value-of select="description | atom:subtitle" /></h2>
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<!--div class="lastUpdated">Last updated: <xsl:value-of select="lastBuildDate | atom:updated" /></div-->
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</div>
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</div>
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<div id="feedContent">
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<xsl:for-each select="item | atom:entry">
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<div class="entry">
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<h3>
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<xsl:choose>
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<xsl:when test="link | atom:link[@rel='alternate']/@href">
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<a href="{link | atom:link[@rel='alternate']/@href}" target="_blank">
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<span><xsl:value-of select="title | atom:title" /></span>
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</a>
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</xsl:when>
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<xsl:otherwise>
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<span><xsl:value-of select="title | atom:title" /></span>
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</xsl:otherwise>
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</xsl:choose>
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<div class="lastUpdated"><xsl:value-of select="pubDate | atom:updated" /></div>
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</h3>
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<div class="feedEntryContent">
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<xsl:value-of select="description | atom:summary" disable-output-escaping="yes" />
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</div>
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<div class="enclosures">
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<xsl:for-each select="enclosure | atom:link[@rel='enclosure']">
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<div class="enclosure">
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<img src="icons/file.png" class="enclosureIcon" />
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<a href="{@url | @href}" target="_blank" class="enclosureFilename"><xsl:value-of select="@url | @href" /></a>
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(<xsl:value-of select="@type" />, <span class="enclosureSize"><xsl:value-of select="@length" /></span>)
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</div>
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</xsl:for-each>
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</div>
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</div>
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<div style="clear: both;"></div>
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</xsl:for-each>
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</div>
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</xsl:template>
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<xsl:template match="/">
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<xsl:apply-templates select="//channel | //atom:feed" />
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</xsl:template>
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</xsl:stylesheet>
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28
rsspreview.js
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28
rsspreview.js
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(function() {
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/**
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* Check and set a global guard variable.
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* If this content script is injected into the same page again,
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* it will do nothing next time.
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*/
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if (window.hasRun) {
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console.log("already run");
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return;
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}
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window.hasRun = true;
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const rootName = document.getRootNode().documentElement.nodeName;
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if (rootName == "rss" || rootName == "channel" || rootName == "feed") {
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var feed_url = window.location.href;
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var url = "preview.html?" + encodeURIComponent(feed_url);
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url = chrome.extension.getURL(url);
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// redirect to preview page with feed url as query string
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window.location.replace(url);
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}
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})();
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