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/*******************************************************************************
ηMatrix - a browser extension to black/white list requests.
Copyright (C) 2014-2019 Raymond Hill
Copyright (C) 2019-2020 Alessio Vanni
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see {http://www.gnu.org/licenses/}.
Home: https://gitlab.com/vannilla/ematrix
uMatrix Home: https://github.com/gorhill/uMatrix
*/
'use strict';
// This file should always be included at the end of the `body` tag, so as
// to ensure all i18n targets are already loaded.
(function() {
// https://github.com/gorhill/uBlock/issues/2084
// Anything else than <a>, <b>, <code>, <em>, <i>, <input>, and
// <span> will be rendered as plain text. For <input>, only the
// type attribute is allowed. For <a>, only href attribute must
// be present, and it MUST starts with `https://`, and includes no
// single- or double-quotes. No HTML entities are allowed, there
// is code to handle existing HTML entities already present in
// translation files until they are all gone.
//
// ηMatrix:
// We're not going to remove anything, but rather going to make
// full use of HTML tags and HTML entities in translations. Of
// course, this check for safe tags is going to stay and will be
// used to check the source text. The above comment is kept just
// in case.
let reSafeTags =
/^([\s\S]*?)<(b|blockquote|code|em|i|kbd|span|sup)>(.+?)<\/\2>([\s\S]*)$/;
let reSafeInput = /^([\s\S]*?)<(input type="[^"]+")>(.*?)([\s\S]*)$/;
let reInput = /^input type=(['"])([a-z]+)\1$/;
let reSafeLink =
/^([\s\S]*?)<(a href=['"]https?:\/\/[^'" <>]+['"])>(.+?)<\/a>([\s\S]*)$/;
let reLink = /^a href=(['"])(https?:\/\/[^'"]+)\1$/;
let safeTextToTagNode = function (text) {
let matches;
let node;
if (text.lastIndexOf('a ', 0) === 0) {
matches = reLink.exec(text);
if (matches === null) {
return null;
}
node = document.createElement('a');
node.setAttribute('href', matches[2]);
return node;
}
if (text.lastIndexOf('input ', 0) === 0) {
matches = reInput.exec(text);
if (matches === null) {
return null;
}
node = document.createElement('input');
node.setAttribute('type', matches[2]);
return node;
}
// Firefox extension validator warns if using a variable as
// argument for document.createElement().
// ηMatrix: is it important for us?
// ηMatrix (4.4.3 onwards): let's just use the variable and
// hope for the best, no need to have a redundant switch.
/*
switch (text) {
case 'b':
return document.createElement('b');
case 'blockquote':
return document.createElement('blockquote');
case 'code':
return document.createElement('code');
case 'em':
return document.createElement('em');
case 'i':
return document.createElement('i');
case 'kbd':
return document.createElement('kbd');
case 'span':
return document.createElement('span');
case 'sup':
return document.createElement('sup');
default:
break;
}
*/
return document.createElement(text);
};
let safeTextToTextNode = function (text) {
if (text.indexOf('&') !== -1) {
text = text
.replace(/“/g, '“')
.replace(/”/g, '”')
.replace(/‘/g, '‘')
.replace(/’/g, '’')
.replace(/</g, '<')
.replace(/>/g, '>')
.replace(/'/g, '\'');
}
return document.createTextNode(text);
};
let safeTextToDOM = function (text, parent) {
if (text === '') {
return;
}
if (text.indexOf('<') === -1) {
return parent.appendChild(safeTextToTextNode(text));
}
// Using the raw <p> element is not allowed for security reason,
// but it's good for formatting content, so here it's substituted
// for a safer equivalent (for the extension.)
text = text
.replace(/^<p>|<\/p>/g, '')
.replace(/<p>/g, '\n\n');
let matches;
let matches1 = reSafeTags.exec(text);
let matches2 = reSafeLink.exec(text);
if (matches1 !== null && matches2 !== null) {
matches = matches1.index < matches2.index ? matches1 : matches2;
} else if (matches1 !== null) {
matches = matches1;
} else if (matches2 !== null) {
matches = matches2;
} else {
matches = reSafeInput.exec(text);
}
if (matches === null) {
parent.appendChild(safeTextToTextNode(text));
return;
}
safeTextToDOM(matches[1], parent);
let node = safeTextToTagNode(matches[2]) || parent;
safeTextToDOM(matches[3], node);
parent.appendChild(node);
safeTextToDOM(matches[4], parent);
};
// Helper to deal with the i18n'ing of HTML files.
vAPI.i18n.render = function (context) {
let docu = document;
let root = context || docu;
let i, elem, text;
let elems = root.querySelectorAll('[data-i18n]');
let n = elems.length;
for (i=0; i<n; ++i) {
elem = elems[i];
text = vAPI.i18n(elem.getAttribute('data-i18n'));
if (!text) {
continue;
}
// TODO: remove once it's all replaced with <input type="...">
if (text.indexOf('{') !== -1) {
text =
text.replace(/\{\{input:([^}]+)\}\}/g, '<input type="$1">');
}
safeTextToDOM(text, elem);
}
uDom('[title]', context).forEach(function (elem) {
let title = vAPI.i18n(elem.attr('title'));
if (title) {
elem.attr('title', title);
}
});
uDom('[placeholder]', context).forEach(function (elem) {
elem.attr('placeholder', vAPI.i18n(elem.attr('placeholder')));
});
uDom('[data-i18n-tip]', context).forEach(function (elem) {
elem.attr('data-tip',
vAPI.i18n(elem.attr('data-i18n-tip'))
.replace(/<br>/g, '\n')
.replace(/\n{3,}/g, '\n\n'));
});
};
vAPI.i18n.render();
vAPI.i18n.renderElapsedTimeToString = function (tstamp) {
let value = (Date.now() - tstamp) / 60000;
if (value < 2) {
return vAPI.i18n('elapsedOneMinuteAgo');
}
if (value < 60) {
return vAPI
.i18n('elapsedManyMinutesAgo')
.replace('{{value}}', Math.floor(value).toLocaleString());
}
value /= 60;
if (value < 2) {
return vAPI.i18n('elapsedOneHourAgo');
}
if (value < 24) {
return vAPI
.i18n('elapsedManyHoursAgo')
.replace('{{value}}', Math.floor(value).toLocaleString());
}
value /= 24;
if (value < 2) {
return vAPI.i18n('elapsedOneDayAgo');
}
return vAPI
.i18n('elapsedManyDaysAgo')
.replace('{{value}}', Math.floor(value).toLocaleString());
};
})();
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