// ==UserScript==
// @name         让我直接跳转好吗
// @namespace    https://greasyfork.org/zh-CN/users/177458-bd777
// @version      0.2
// @description  网页中的外链直接跳出去而不再被拦一道
// @author       windeng
// @match        *://*.zhihu.com/*
// @match        *://c.pc.qq.com/*
// @match        *://*.jianshu.com/*
// @grant        none
// @downloadURL none
// ==/UserScript==

function gaoZhihu() {
    if (!window.location.href.match('zhihu.com')) return

    let run = () => {
        let cnt = 0
        let aList = document.querySelectorAll('a')
        for (let a of aList) {
            const href = a.getAttribute('href')
            const matches = href.match(/link\.zhihu\.com\/?\?target=(.*)/)
            // console.log('?', href, matches)
            if (matches) {
                const url = decodeURIComponent(matches[1])
                a.setAttribute('href', url)
                // console.log(`${href} => ${url}`)
                ++cnt
            }
        }
        return cnt > 0
    }

    run()

    let MutationObserver = window.MutationObserver || window.WebKitMutationObserver || window.MozMutationObserver

    let observer = new MutationObserver(function(mutations) {
        run()
    })

    observer.observe(document.body, {
        childList: true,
        subtree: true
    })
}

function gaoQQ() {
    if (!window.location.href.match('c.pc.qq.com')) return

    const matches = window.location.search.match(/pfurl=([^&$]*)/)
    if (matches) {
        const url = decodeURIComponent(matches[1])
        window.location.href = url
    }
}

function gaoJianshu() {
    if (!window.location.href.match('jianshu.com')) return

    let run = () => {
        let cnt = 0
        let aList = document.querySelectorAll('a')
        for (let a of aList) {
            const href = a.getAttribute('href')
            const matches = href.match(/links.jianshu.com\/go\?to=([^&$]*)/)
            // console.log('?', href, matches)
            if (matches) {
                const url = decodeURIComponent(matches[1])
                a.setAttribute('href', url)
                // console.log(`${href} => ${url}`)
                ++cnt
            }
        }
        return cnt > 0
    }

    run()

    let MutationObserver = window.MutationObserver || window.WebKitMutationObserver || window.MozMutationObserver

    let observer = new MutationObserver(function(mutations) {
        run()
    })

    observer.observe(document.body, {
        childList: true,
        subtree: true
    })
}

(function() {
    'use strict';

    // Your code here...
     window.addEventListener('load', () => {
         gaoZhihu()
         gaoQQ()
         gaoJianshu()
     })
})();