Removes redirects of some sites, such as google, zhihu..., add some customization.
目前为
// ==UserScript==
// @name rBlock
// @description Removes redirects of some sites, such as google, zhihu..., add some customization.
// @namespace https://greasyfork.org/zh-CN/scripts/20568-rblock
// @author nonoroazoro
// @include /^https?\:\/\/(www|encrypted|news)\.google\./
// @include /^https?\:\/\/(www)\.zhihu\./
// @version 1.2
// @grant none
// ==/UserScript==
if (typeof unsafeWindow == "undefined")
{
unsafeWindow = window;
}
const rBlock = {
_blockers: [],
start: function ()
{
this.reset();
for (let blocker of this._blockers)
{
blocker.start();
}
},
reset: function ()
{
this._blockers = [];
// 1. google
this._blockers.push(
{
start: function ()
{
if (/^https?\:\/\/(www|encrypted|news)\.google\./.test(unsafeWindow.location.href))
{
const scope = this._getScope();
if (scope)
{
this._block(scope);
const observer = new unsafeWindow.MutationObserver((p_mutations) =>
{
this._block(scope);
});
observer.observe(document.body,
{
childList: true,
subtree: true
}
);
}
}
},
// block redirects of google
_block: function (p_scope)
{
let base;
let elem;
let elems;
if (["all", "videos", "news", "apps"].indexOf(p_scope) != -1)
{
// 1. all/videos/news/apps
base = document.querySelector("div#search");
elems = base.querySelectorAll(`a[onmousedown^="return rwt("]`);
for (let e of elems)
{
_removeAttributes(e, "onmousedown");
}
}
else if (["images"].indexOf(p_scope) != -1)
{
// 2. images
base = document.querySelector("div#search");
elems = base.querySelectorAll(`#irc_cc a[class^="irc_"], #irc_cc a[class*=" irc_"]`);
for (let e of elems)
{
_removeListeners(e, "mousedown");
}
}
else if (["news.google.com"].indexOf(p_scope) != -1)
{
// 3. news.google.com
elems = document.querySelectorAll(`.content-pane-container a.article`);
for (let e of elems)
{
_removeListeners(e, "click mousedown");
}
}
// 4. general
revealURL(
document.querySelectorAll(`a[href^="/url?"]`),
/(?:\/url\?.*url\=)(http.*?)$/i
);
// 5. cached links
let menuLink;
let cacheLink;
elems = document.querySelectorAll(`a[href^="http://webcache.googleusercontent."], a[href^="https://webcache.googleusercontent."]`);
for (let e of elems)
{
e.style.display = "inline";
menuLink = e.closest("div.action-menu.ab_ctl");
cacheLink = document.createElement("a");
cacheLink.href = e.href.replace(/^http\:/, "https:");
cacheLink.target = "_blank";
cacheLink.innerText = " Cached ";
menuLink.parentNode.insertBefore(cacheLink, menuLink);
}
},
_getScope: function ()
{
const elem = document.querySelector("div.hdtb-msel");
const result = (elem ? elem.innerText : unsafeWindow.location.host).toLowerCase();
return result;
}
}
);
// 2. zhihu
this._blockers.push(
{
start: function ()
{
if (/^https?\:\/\/(www)\.zhihu\./.test(unsafeWindow.location.href))
{
this._block();
const observer = new unsafeWindow.MutationObserver((p_mutations) =>
{
this._block();
});
observer.observe(document.body,
{
childList: true,
subtree: true
}
);
}
},
_block: function ()
{
// 1. general
revealURL(
document.querySelectorAll(`a[href^="http://link.zhihu.com"], a[href^="https://link.zhihu.com"]`),
/https?\:\/\/link\.zhihu\.com\/\?target=(.*)/i
);
}
}
);
}
};
function _removeAttributes(p_element, p_attributes)
{
if (p_element && typeof p_attributes === "string")
{
const attributes = p_attributes.split(/\W+/) || [];
for (let attribute of attributes)
{
p_element.removeAttribute(attribute);
}
}
}
function _removeListeners(p_element, p_events)
{
if (p_element && typeof p_events === "string")
{
const events = p_events.split(/\W+/) || [];
for (let event of events)
{
p_element.removeEventListener(event, _preventDefaultAction, true);
p_element.addEventListener(event, _preventDefaultAction, true);
}
}
}
function _preventDefaultAction(e)
{
e.stopPropagation();
}
/**
* reveal url
*/
function revealURL(p_elems, p_regex)
{
if (p_elems && p_regex)
{
for (let e of p_elems)
{
// reveal url
const m = e.href.match(p_regex);
if (m && m[1])
{
e.href = decodeURIComponent(m[1]);
}
// open in new tab
if (!e.target)
{
e.target = "_blank";
}
}
}
}
rBlock.start();