try to take over the world!
// ==UserScript==
// @name zhihusb
// @namespace http://tampermonkey.net/
// @version 0.1.3
// @description try to take over the world!
// @author You
// @match https://www.zhihu.com/question/*
// @grant none
// ==/UserScript==
(function() {
'use strict';
(function (root, factory) {
window.lscache = factory();
}(this, function () {
// Prefix for all lscache keys
var CACHE_PREFIX = 'lscache-';
// Suffix for the key name on the expiration items in localStorage
var CACHE_SUFFIX = '-cacheexpiration';
// expiration date radix (set to Base-36 for most space savings)
var EXPIRY_RADIX = 10;
// time resolution in minutes
var EXPIRY_UNITS = 60 * 1000;
// ECMAScript max Date (epoch + 1e8 days)
var MAX_DATE = Math.floor(8.64e15/EXPIRY_UNITS);
var cachedStorage;
var cachedJSON;
var cacheBucket = '';
var warnings = false;
// Determines if localStorage is supported in the browser;
// result is cached for better performance instead of being run each time.
// Feature detection is based on how Modernizr does it;
// it's not straightforward due to FF4 issues.
// It's not run at parse-time as it takes 200ms in Android.
function supportsStorage() {
var key = '__lscachetest__';
var value = key;
if (cachedStorage !== undefined) {
return cachedStorage;
}
// some browsers will throw an error if you try to access local storage (e.g. brave browser)
// hence check is inside a try/catch
try {
if (!localStorage) {
return false;
}
} catch (ex) {
return false;
}
try {
setItem(key, value);
removeItem(key);
cachedStorage = true;
} catch (e) {
// If we hit the limit, and we don't have an empty localStorage then it means we have support
if (isOutOfSpace(e) && localStorage.length) {
cachedStorage = true; // just maxed it out and even the set test failed.
} else {
cachedStorage = false;
}
}
return cachedStorage;
}
// Check to set if the error is us dealing with being out of space
function isOutOfSpace(e) {
if (e && e.name === 'QUOTA_EXCEEDED_ERR' ||
e.name === 'NS_ERROR_DOM_QUOTA_REACHED' ||
e.name === 'QuotaExceededError') {
return true;
}
return false;
}
// Determines if native JSON (de-)serialization is supported in the browser.
function supportsJSON() {
/*jshint eqnull:true */
if (cachedJSON === undefined) {
cachedJSON = (window.JSON != null);
}
return cachedJSON;
}
/**
* Returns a string where all RegExp special characters are escaped with a \.
* @param {String} text
* @return {string}
*/
function escapeRegExpSpecialCharacters(text) {
return text.replace(/[[\]{}()*+?.\\^$|]/g, '\\$&');
}
/**
* Returns the full string for the localStorage expiration item.
* @param {String} key
* @return {string}
*/
function expirationKey(key) {
return key + CACHE_SUFFIX;
}
/**
* Returns the number of minutes since the epoch.
* @return {number}
*/
function currentTime() {
return Math.floor((new Date().getTime())/EXPIRY_UNITS);
}
/**
* Wrapper functions for localStorage methods
*/
function getItem(key) {
return localStorage.getItem(CACHE_PREFIX + cacheBucket + key);
}
function setItem(key, value) {
// Fix for iPad issue - sometimes throws QUOTA_EXCEEDED_ERR on setItem.
localStorage.removeItem(CACHE_PREFIX + cacheBucket + key);
localStorage.setItem(CACHE_PREFIX + cacheBucket + key, value);
}
function removeItem(key) {
localStorage.removeItem(CACHE_PREFIX + cacheBucket + key);
}
function eachKey(fn) {
var prefixRegExp = new RegExp('^' + CACHE_PREFIX + escapeRegExpSpecialCharacters(cacheBucket) + '(.*)');
// Loop in reverse as removing items will change indices of tail
for (var i = localStorage.length-1; i >= 0 ; --i) {
var key = localStorage.key(i);
key = key && key.match(prefixRegExp);
key = key && key[1];
if (key && key.indexOf(CACHE_SUFFIX) < 0) {
fn(key, expirationKey(key));
}
}
}
function flushItem(key) {
var exprKey = expirationKey(key);
removeItem(key);
removeItem(exprKey);
}
function flushExpiredItem(key) {
var exprKey = expirationKey(key);
var expr = getItem(exprKey);
if (expr) {
var expirationTime = parseInt(expr, EXPIRY_RADIX);
// Check if we should actually kick item out of storage
if (currentTime() >= expirationTime) {
removeItem(key);
removeItem(exprKey);
return true;
}
}
}
function warn(message, err) {
if (!warnings) return;
if (!('console' in window) || typeof window.console.warn !== 'function') return;
window.console.warn("lscache - " + message);
if (err) window.console.warn("lscache - The error was: " + err.message);
}
var lscache = {
/**
* Stores the value in localStorage. Expires after specified number of minutes.
* @param {string} key
* @param {Object|string} value
* @param {number} time
*/
set: function(key, value, time) {
if (!supportsStorage()) return;
// If we don't get a string value, try to stringify
// In future, localStorage may properly support storing non-strings
// and this can be removed.
if (!supportsJSON()) return;
try {
value = JSON.stringify(value);
} catch (e) {
// Sometimes we can't stringify due to circular refs
// in complex objects, so we won't bother storing then.
return;
}
try {
setItem(key, value);
} catch (e) {
if (isOutOfSpace(e)) {
// If we exceeded the quota, then we will sort
// by the expire time, and then remove the N oldest
var storedKeys = [];
var storedKey;
eachKey(function(key, exprKey) {
var expiration = getItem(exprKey);
if (expiration) {
expiration = parseInt(expiration, EXPIRY_RADIX);
} else {
// TODO: Store date added for non-expiring items for smarter removal
expiration = MAX_DATE;
}
storedKeys.push({
key: key,
size: (getItem(key) || '').length,
expiration: expiration
});
});
// Sorts the keys with oldest expiration time last
storedKeys.sort(function(a, b) { return (b.expiration-a.expiration); });
var targetSize = (value||'').length;
while (storedKeys.length && targetSize > 0) {
storedKey = storedKeys.pop();
warn("Cache is full, removing item with key '" + key + "'");
flushItem(storedKey.key);
targetSize -= storedKey.size;
}
try {
setItem(key, value);
} catch (e) {
// value may be larger than total quota
warn("Could not add item with key '" + key + "', perhaps it's too big?", e);
return;
}
} else {
// If it was some other error, just give up.
warn("Could not add item with key '" + key + "'", e);
return;
}
}
// If a time is specified, store expiration info in localStorage
if (time) {
setItem(expirationKey(key), (currentTime() + time).toString(EXPIRY_RADIX));
} else {
// In case they previously set a time, remove that info from localStorage.
removeItem(expirationKey(key));
}
},
/**
* Retrieves specified value from localStorage, if not expired.
* @param {string} key
* @return {string|Object}
*/
get: function(key) {
if (!supportsStorage()) return null;
// Return the de-serialized item if not expired
if (flushExpiredItem(key)) { return null; }
// Tries to de-serialize stored value if its an object, and returns the normal value otherwise.
var value = getItem(key);
if (!value || !supportsJSON()) {
return value;
}
try {
// We can't tell if its JSON or a string, so we try to parse
return JSON.parse(value);
} catch (e) {
// If we can't parse, it's probably because it isn't an object
return value;
}
},
/**
* Removes a value from localStorage.
* Equivalent to 'delete' in memcache, but that's a keyword in JS.
* @param {string} key
*/
remove: function(key) {
if (!supportsStorage()) return;
flushItem(key);
},
/**
* Returns whether local storage is supported.
* Currently exposed for testing purposes.
* @return {boolean}
*/
supported: function() {
return supportsStorage();
},
/**
* Flushes all lscache items and expiry markers without affecting rest of localStorage
*/
flush: function() {
if (!supportsStorage()) return;
eachKey(function(key) {
flushItem(key);
});
},
/**
* Flushes expired lscache items and expiry markers without affecting rest of localStorage
*/
flushExpired: function() {
if (!supportsStorage()) return;
eachKey(function(key) {
flushExpiredItem(key);
});
},
/**
* Appends CACHE_PREFIX so lscache will partition data in to different buckets.
* @param {string} bucket
*/
setBucket: function(bucket) {
cacheBucket = bucket;
},
/**
* Resets the string being appended to CACHE_PREFIX so lscache will use the default storage behavior.
*/
resetBucket: function() {
cacheBucket = '';
},
/**
* Sets whether to display warnings when an item is removed from the cache or not.
*/
enableWarnings: function(enabled) {
warnings = enabled;
}
};
// Return the module
return lscache;
}));
var c = document.querySelector("#QuestionAnswers-answers [data-zop-feedlist]");
if (c === null) {
c = document.querySelector(".Question-mainColumn .Card+.Card");
}
console.dir(c);
var userinfos = {};
var userids = {};
var userextends = {};
var components = {};
var createStopComponent = function(v) {
var b = document.createElement("button");
b.id = "item" + Date.now() + "-" + Math.random();
b.innerHTML = "给我滚";
b.style = 'position: absolute; right: 0; top: 0;';
b.onclick = function() {
var id = userids[b.id];
var sbid = lscache.get("sbid");
var info = {id: id, info: userinfos[b.id], extend: userextends[b.id], lastupdatetime: Date.now()};
if (!sbid) {
sbid = {};
}
if (!sbid[id]) {
info.num = 1;
} else {
info.num = sbid[id].num + 1;
}
sbid[id] = info;
lscache.set("sbid", sbid);
if (v.querySelector(".AuthorInfo-name .gankuaigun .num")) {
v.querySelector(".AuthorInfo-name .gankuaigun .num").innerHTML = "" + info.num;
} else {
v.querySelector(".AuthorInfo-name").insertAdjacentHTML('beforeend', '<span class="gankuaigun" style="color: #f00;"> 危险分子 +<span class="num">' + info.num + '</span> </span>');
}
};
return b;
};
setTimeout(function() {
var items = Array.prototype.slice.call(c.children);
var sbid = lscache.get("sbid");
var daodishinagesb = {};
items.forEach(function(v, k) {
v.style = "position: relative";
var component = createStopComponent(v);
var info = JSON.parse(v.querySelector(".ContentItem").dataset.zaModuleInfo);
var zhegesbid = info.card.content.author_member_hash_id;
if (zhegesbid) {
if (sbid && sbid[zhegesbid]) {
console.log("sb gei wo gun " + sbid[zhegesbid].extend.zop.authorName);
//v.style.display = "none";
v.querySelector(".AuthorInfo-name").insertAdjacentHTML('beforeend', '<span class="gankuaigun" style="color: #f00;"> 危险分子 +<span class="num">' + sbid[zhegesbid].num + '</span> </span>');
}
components[component.id] = component;
v.appendChild(component);
userinfos[component.id] = info;
userids[component.id] = zhegesbid;
userextends[component.id] = {
zop: JSON.parse(v.querySelector(".ContentItem").dataset.zop)
};
}
});
console.dir(userids);
}, 3000);
})();