https://meilbn.com/js/third-party/statistics/lean-analytics.js

1/* global CONFIG */
2/* eslint-disable no-console */
3
4(function() {
5  const leancloudSelector = url => {
6    url = encodeURI(url);
7    return document.getElementById(url).querySelector('.leancloud-visitors-count');
8  };
9
10  const addCount = Counter => {
11    const visitors = document.querySelector('.leancloud_visitors');
12    const url = decodeURI(visitors.id);
13    const title = visitors.dataset.flagTitle;
14
15    Counter('get', `/classes/Counter?where=${encodeURIComponent(JSON.stringify({ url }))}`)
16      .then(response => response.json())
17      .then(({ results }) => {
18        if (results.length > 0) {
19          const counter = results[0];
20          leancloudSelector(url).innerText = counter.time + 1;
21          Counter('put', '/classes/Counter/' + counter.objectId, {
22            time: {
23              '__op'  : 'Increment',
24              'amount': 1
25            }
26          })
27            .catch(error => {
28              console.error('Failed to save visitor count', error);
29            });
30        } else if (CONFIG.leancloud_visitors.security) {
31          leancloudSelector(url).innerText = 'Counter not initialized! More info at console err msg.';
32          console.error('ATTENTION! LeanCloud counter has security bug, see how to solve it here: https://github.com/theme-next/hexo-leancloud-counter-security. \n However, you can still use LeanCloud without security, by setting `security` option to `false`.');
33        } else {
34          Counter('post', '/classes/Counter', { title, url, time: 1 })
35            .then(response => response.json())
36            .then(() => {
37              leancloudSelector(url).innerText = 1;
38            })
39            .catch(error => {
40              console.error('Failed to create', error);
41            });
42        }
43      })
44      .catch(error => {
45        console.error('LeanCloud Counter Error', error);
46      });
47  };
48
49  const showTime = Counter => {
50    const visitors = document.querySelectorAll('.leancloud_visitors');
51    const entries = [...visitors].map(element => {
52      return decodeURI(element.id);
53    });
54
55    Counter('get', `/classes/Counter?where=${encodeURIComponent(JSON.stringify({ url: { '$in': entries } }))}`)
56      .then(response => response.json())
57      .then(({ results }) => {
58        for (const url of entries) {
59          const target = results.find(item => item.url === url);
60          leancloudSelector(url).innerText = target ? target.time : 0;
61        }
62      })
63      .catch(error => {
64        console.error('LeanCloud Counter Error', error);
65      });
66  };
67
68  const { app_id, app_key, server_url } = CONFIG.leancloud_visitors;
69  const fetchData = api_server => {
70    const Counter = (method, url, data) => {
71      return fetch(`${api_server}/1.1${url}`, {
72        method,
73        headers: {
74          'X-LC-Id'     : app_id,
75          'X-LC-Key'    : app_key,
76          'Content-Type': 'application/json'
77        },
78        body: JSON.stringify(data)
79      });
80    };
81    if (CONFIG.page.isPost) {
82      if (CONFIG.hostname !== location.hostname) return;
83      addCount(Counter);
84    } else if (document.querySelectorAll('.post-title-link').length >= 1) {
85      showTime(Counter);
86    }
87  };
88
89  let api_server;
90  if (server_url) {
91    api_server = server_url;
92  } else if (app_id.slice(-9) === '-MdYXbMMI') {
93    api_server = `https://${app_id.slice(0, 8).toLowerCase()}.api.lncldglobal.com`;
94  }
95
96  document.addEventListener('page:loaded', () => {
97    if (api_server) {
98      fetchData(api_server);
99    } else {
100      fetch(`https://app-router.leancloud.cn/2/route?appId=${app_id}`)
101        .then(response => response.json())
102        .then(({ api_server }) => {
103          fetchData(`https://${api_server}`);
104        });
105    }
106  });
107})();