在京东/新蛋/亚马逊中国的产品页面，自动插入一张从 quanlala.com 里的价格历史波动图片。
// ==UserScript==
// @name Quanlala Price History Image
// @namespace http://qixinglu.com
// @description 在京东/新蛋/亚马逊中国的产品页面，自动插入一张从 quanlala.com 里的价格历史波动图片。
// @include http://mvd.360buy.com/*
// @include http://book.360buy.com/*
// @include http://www.360buy.com/product/*
// @include http://www.newegg.com.cn/product/*
// @include http://www.newegg.com.cn/Product/*
// @include http://www.amazon.cn/gp/product/*
// @include http://www.amazon.cn/*/dp/*
// @include http://www.amazon.cn/mn/detailApp*
// @version 0.0.1.20140517140357
// ==/UserScript==
// 使用域名
USE_DOMAIN = 'www.quanlala.com';
//USE_DOMAIN = 'www.360444.com';
//USE_DOMAIN = 'www.360buybuy.com';
// 获得价格历史图片
function create_history_image_node(prefix, response) {
var reg, image_url, image_full_url, image_node;
if (prefix === '') {
reg = new RegExp("/ZedGraphImages/[^\"]+");
} else {
reg = new RegExp("/" + prefix + "/ZedGraphImages/[^\"]+");
}
image_url = response.responseText.match(reg);
if (image_url === null) {
image_node = document.createElement('p');
image_node.innerHTML = '这个产品貌似没有历史价格数据，<a href="' + response.finalUrl + '">查看链接</a>。';
} else {
image_full_url = "http://" + USE_DOMAIN + image_url;
img_node = document.createElement('img');
img_node.style.marginTop = "10px";
img_node.style.marginBottom = "10px";
img_node.src = image_full_url;
// 加上链接
image_node = document.createElement('a');
image_node.href = response.finalUrl;
image_node.appendChild(img_node);
}
return image_node;
}
function create_product_history_url(prefix, product_uid) {
if (prefix === '') {
return "http://" + USE_DOMAIN + "/product/" + product_uid + ".html";
} else {
return "http://" + USE_DOMAIN + "/" + prefix + "/product/" + product_uid + ".html";
}
}
url = window.location.href;
/* 网店处理规则 */
sites = [{
domain : '360buy.com',
get_history_url: function() {
var reg, product_uid, history_url;
if (url.indexOf('http://www.360buy.com/product/') != -1) {
reg = new RegExp("http://www.360buy.com/product/\(\\d+\).html");
} else {
reg = new RegExp("http://.+\.360buy\.com/\(\\d+\).html");
}
product_uid = url.match(reg)[1];
history_url = create_product_history_url('', product_uid);
return history_url;
},
request_callback: function(response) {
var image_node, place_node;
image_node = create_history_image_node('', response);
place_node = document.getElementById('choose');
place_node.parentNode.insertBefore(image_node, place_node.nextElementSibling);
}
}, {
domain : 'newegg.com',
get_history_url: function() {
var reg, product_uid, history_url;
reg = new RegExp("http://www.newegg.com.cn/[Pp]roduct/\([^.]+\).htm");
product_uid = url.match(reg)[1];
history_url = create_product_history_url('egg', product_uid);
return history_url;
},
request_callback: function(response) {
var image_node, place_node;
image_node = create_history_image_node('egg', response);
place_node = document.getElementsByClassName('mainInfoArea')[0];
place_node.parentNode.insertBefore(image_node, place_node.nextElementSibling);
}
}, {
domain : 'amazon.cn',
get_history_url: function() {
var reg, product_uid, history_url;
if (url.indexOf('/gp/product/') != -1) {
reg = new RegExp("http://www.amazon.cn/gp/product/\([^/]+\)/\?");
} else if (url.indexOf('/dp/') != -1) {
reg = new RegExp("http://www.amazon.cn/[^/]+/dp/\([^/]+\)/\?");
} else {
reg = new RegExp("http://www.amazon.cn/mn/detailApp.*asin=\(\\w+\)");
}
product_uid = url.match(reg)[1];
history_url = create_product_history_url('am', product_uid);
return history_url;
},
request_callback: function(response) {
var image_node, place_node;
image_node = create_history_image_node('am', response);
place_node = document.getElementById('handleBuy');
place_node.parentNode.insertBefore(image_node, place_node.nextElementSibling);
}
}];
/* 开始处理 */
var i, site;
for (i = 0; i < sites.length; i += 1) {
if (url.indexOf(sites[i].domain) != -1) {
site = sites[i];
break;
}
}
GM_xmlhttpRequest({
method: "GET",
url: site.get_history_url(),
onload: site.request_callback
});