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#!/usr/bin/env node
//
// # Description
//
// Summarize the current page in a new tab, by processing it with the standalone readability
// library used for Firefox Reader View.
//
// # Prerequisites
//
// - Mozilla's readability library (npm install -g @mozilla/readability)
// - jsdom (npm install -g jsdom)
// - qutejs (npm install -g qutejs)
//
// - Ensure that node knows where to find your globally installed modules by adding
// the following to ~/.profile or /etc/profile:
//
// export NODE_PATH=$NODE_PATH:$(npm root -g)
//
// *Note*: On some Linux distros and macOS, it may be easier to set NODE_PATH using qutebrowser's
// qt.environ setting. For instance, if 'npm root -g' returns /usr/lib/node_modules, then run:
//
// :set qt.environ '{"NODE_PATH": "/usr/lib/node_modules"}'
//
// # Usage
//
// :spawn --userscript readability-js
//
// One may wish to define an easy to type command alias in qutebrowser's configuration file:
// c.aliases = {"readability" : "spawn --userscript readability-js", ...}
const { Readability } = require('@mozilla/readability');
const qute = require('qutejs');
const JSDOM = require('jsdom').JSDOM;
const fs = require('fs');
const path = require('path');
const util = require('util');
const HEADER = `
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta charset="UTF-8">
<title>%s</title>
<style type="text/css">
body {
margin: 30px auto;
max-width: 650px;
line-height: 1.4;
padding: 0 10px;
}
h1, h2, h3 {
line-height: 1.2;
}
h1.reader-title {
font-size: 1.85em;
line-height: 1.25em;
width: 100%;
margin: 0 0;
}
a.reader-title {
color: #FFFFFF !important;
}
img {
max-width:100%;
height:auto;
}
p > img:only-child,
p > a:only-child > img:only-child,
.wp-caption img,
figure img {
display: block;
}
table,
th,
td {
border: 1px solid grey;
border-collapse: collapse;
padding: 6px;
vertical-align: top;
}
table {
margin: 5px;
}
pre {
padding: 16px;
overflow: auto;
line-height: 1.45;
background-color: #dddddd;
}
code {
padding: .2em .4em;
margin: 0;
background-color: #dddddd;
}
pre > code {
padding-right: 0;
padding-left: 0;
}
blockquote {
border-inline-start: 2px solid grey !important;
padding: 0;
padding-inline-start: 16px;
margin-inline-start: 24px;
border-radius: 5px;
}
</style>
<!-- This icon is licensed under the Mozilla Public License 2.0 (available at: https://www.mozilla.org/en-US/MPL/2.0/).
The original icon can be found here: https://dxr.mozilla.org/mozilla-central/source/browser/themes/shared/reader/readerMode.svg -->
<link rel="shortcut icon" href="data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iNjRweCIgaGVpZ2h0PSI2NHB4IiB2ZXJzaW9uPSIxLjEiI
HZpZXdCb3g9IjAgMCA2NCA2NCIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj4KPGcgZmlsbD0iI2ZmZiI+CjxwYXRoIGQ9Im01MiAwaC00
MGMtNC40MiAwLTggMy41OC04IDh2NDhjMCA0LjQyIDMuNTggOCA4IDhoNDBjNC40MiAwIDgtMy41OCA4LTh2LTQ4YzAtNC40Mi0zLjU4LTgtOC04em0wIDU
yYzAgMi4yMS0xLjc5IDQtNCA0aC0zMmMtMi4yMSAwLTQtMS43OS00LTR2LTQwYzAtMi4yMSAxLjc5LTQgNC00aDMyYzIuMjEgMCA0IDEuNzkgNCA0em0tMT
AtMzZoLTIwYy0xLjExIDAtMiAwLjg5NS0yIDJzMC44OTUgMiAyIDJoMjBjMS4xMSAwIDItMC44OTUgMi0ycy0wLjg5NS0yLTItMnptMCA4aC0yMGMtMS4xM
SAwLTIgMC44OTUtMiAyczAuODk1IDIgMiAyaDIwYzEuMTEgMCAyLTAuODk1IDItMnMtMC44OTUtMi0yLTJ6bTAgOGgtMjBjLTEuMTEgMC0yIDAuODk1LTIg
MnMwLjg5NSAyIDIgMmgyMGMxLjExIDAgMi0wLjg5NSAyLTJzLTAuODk1LTItMi0yem0tMTIgOGgtOGMtMS4xMSAwLTIgMC44OTUtMiAyczAuODk1IDIgMiA
yaDhjMS4xMSAwIDItMC44OTUgMi0ycy0wLjg5NS0yLTItMnoiIGZpbGw9IiNmZmYiLz4KPC9nPgo8L3N2Zz4K"/>
</head>
<body class="qute-readability">
<h1 class="reader-title">%s</h1>
<div>From <a class="reader-title" href="%s">%s</a></div>
<hr>
%s
</body>
</html>
`;
const scriptsDir = path.join(process.env.QUTE_DATA_DIR, 'userscripts');
const tmpFile = path.join(scriptsDir, '/readability.html');
if (!fs.existsSync(scriptsDir)) {
fs.mkdirSync(scriptsDir);
}
let getDOM, domOpts, target;
// When hinting, use the selected hint instead of the current page
if (process.env.QUTE_MODE === 'hints') {
getDOM = JSDOM.fromURL;
target = process.env.QUTE_URL;
}
else {
getDOM = JSDOM.fromFile;
domOpts = {url: process.env.QUTE_URL, contentType: "text/html; charset=utf-8"};
target = process.env.QUTE_HTML;
}
getDOM(target, domOpts).then(dom => {
let reader = new Readability(dom.window.document);
let article = reader.parse();
let subtitle = (article.siteName == null) ? new URL(process.env.QUTE_URL).hostname : article.siteName;
let content = util.format(HEADER, article.title, article.title, process.env.QUTE_URL, subtitle, article.content);
fs.writeFile(tmpFile, content, (err) => {
if (err) {
qute.messageError([`"${err}"`])
return 1;
}
// Success
qute.open(['-t', '-r', tmpFile]);
})
});
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