hexo/public/js/leancloud.js

193 lines
5.6 KiB
JavaScript

/* global CONFIG */
// eslint-disable-next-line no-console
(function(window, document) {
// 查询存储的记录
function getRecord(Counter, target) {
return new Promise(function(resolve, reject) {
Counter('get', '/classes/Counter?where=' + encodeURIComponent(JSON.stringify({ target })))
.then(resp => resp.json())
.then(({ results, code, error }) => {
if (code === 401) {
throw error;
}
if (results && results.length > 0) {
var record = results[0];
resolve(record);
} else {
Counter('post', '/classes/Counter', { target, time: 0 })
.then(resp => resp.json())
.then((record, error) => {
if (error) {
throw error;
}
resolve(record);
}).catch(error => {
console.error('Failed to create: ', error);
reject(error);
});
}
}).catch((error) => {
console.error('LeanCloud Counter Error: ', error);
reject(error);
});
});
}
// 发起自增请求
function increment(Counter, incrArr) {
return new Promise(function(resolve, reject) {
Counter('post', '/batch', {
'requests': incrArr
}).then((res) => {
res = res.json();
if (res.error) {
throw res.error;
}
resolve(res);
}).catch((error) => {
console.error('Failed to save visitor count: ', error);
reject(error);
});
});
}
// 构建自增请求体
function buildIncrement(objectId) {
return {
'method': 'PUT',
'path' : `/1.1/classes/Counter/${objectId}`,
'body' : {
'time': {
'__op' : 'Increment',
'amount': 1
}
}
};
}
// 校验是否为有效的 Host
function validHost() {
if (CONFIG.web_analytics.leancloud.ignore_local) {
var hostname = window.location.hostname;
if (hostname === 'localhost' || hostname === '127.0.0.1') {
return false;
}
}
return true;
}
// 校验是否为有效的 UV
function validUV() {
var key = 'LeanCloud_UV_Flag';
var flag = localStorage.getItem(key);
if (flag) {
// 距离标记小于 24 小时则不计为 UV
if (new Date().getTime() - parseInt(flag, 10) <= 86400000) {
return false;
}
}
localStorage.setItem(key, new Date().getTime().toString());
return true;
}
function addCount(Counter) {
var enableIncr = CONFIG.web_analytics.enable && !Fluid.ctx.dnt && validHost();
var getterArr = [];
var incrArr = [];
// 请求 PV 并自增
var pvCtn = document.querySelector('#leancloud-site-pv-container');
if (pvCtn) {
var pvGetter = getRecord(Counter, 'site-pv').then((record) => {
enableIncr && incrArr.push(buildIncrement(record.objectId));
var ele = document.querySelector('#leancloud-site-pv');
if (ele) {
ele.innerText = (record.time || 0) + (enableIncr ? 1 : 0);
pvCtn.style.display = 'inline';
}
});
getterArr.push(pvGetter);
}
// 请求 UV 并自增
var uvCtn = document.querySelector('#leancloud-site-uv-container');
if (uvCtn) {
var uvGetter = getRecord(Counter, 'site-uv').then((record) => {
var incrUV = validUV() && enableIncr;
incrUV && incrArr.push(buildIncrement(record.objectId));
var ele = document.querySelector('#leancloud-site-uv');
if (ele) {
ele.innerText = (record.time || 0) + (incrUV ? 1 : 0);
uvCtn.style.display = 'inline';
}
});
getterArr.push(uvGetter);
}
// 如果有页面浏览数节点,则请求浏览数并自增
var viewCtn = document.querySelector('#leancloud-page-views-container');
if (viewCtn) {
var path = eval(CONFIG.web_analytics.leancloud.path || 'window.location.pathname');
var target = decodeURI(path.replace(/\/*(index.html)?$/, '/'));
var viewGetter = getRecord(Counter, target).then((record) => {
enableIncr && incrArr.push(buildIncrement(record.objectId));
var ele = document.querySelector('#leancloud-page-views');
if (ele) {
ele.innerText = (record.time || 0) + (enableIncr ? 1 : 0);
viewCtn.style.display = 'inline';
}
});
getterArr.push(viewGetter);
}
// 如果启动计数自增,批量发起自增请求
if (enableIncr) {
Promise.all(getterArr).then(() => {
incrArr.length > 0 && increment(Counter, incrArr);
});
}
}
var appId = CONFIG.web_analytics.leancloud.app_id;
var appKey = CONFIG.web_analytics.leancloud.app_key;
var serverUrl = CONFIG.web_analytics.leancloud.server_url;
if (!appId) {
throw new Error('LeanCloud appId is empty');
}
if (!appKey) {
throw new Error('LeanCloud appKey is empty');
}
function fetchData(api_server) {
var Counter = (method, url, data) => {
return fetch(`${api_server}/1.1${url}`, {
method,
headers: {
'X-LC-Id' : appId,
'X-LC-Key' : appKey,
'Content-Type': 'application/json'
},
body: JSON.stringify(data)
});
};
addCount(Counter);
}
var apiServer = serverUrl || `https://${appId.slice(0, 8).toLowerCase()}.api.lncldglobal.com`;
if (apiServer) {
fetchData(apiServer);
} else {
fetch('https://app-router.leancloud.cn/2/route?appId=' + appId)
.then(resp => resp.json())
.then((data) => {
if (data.api_server) {
fetchData('https://' + data.api_server);
}
});
}
})(window, document);