83 lines
2.3 KiB
JavaScript
83 lines
2.3 KiB
JavaScript
const axios = require('axios')
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const cheerio = require('cheerio')
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const SafeEval = require('safe-eval')
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const baseURL = 'https://www.instagram.com'
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const obj = {}
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module.exports = obj
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/**
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* get post link
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* @param {string} shortcode ig post shortcode
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*/
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const getPostLink = (shortcode = '') => {
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if (typeof shortcode !== 'string' || shortcode.trim().length === 0) return ''
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return `${baseURL.replace(/\/$/, '')}/p/${shortcode}`
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}
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/**
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* @param {string} data instagram source html
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*/
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const getInstagramData = (data) => {
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// console.log(data)
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if (typeof data !== 'string' || data.trim().length === 0) return null
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let $ = cheerio.load(data)
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let dataArr = []
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$('script').each((idx, el) => {
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let e = cheerio.load(el)
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// console.log(e('script').html())
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if (/^window._sharedData/i.test(e('script').html())) {
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// console.log('aaa')
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dataArr.push(e('script').html())
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}
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})
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// console.log(dataArr)
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if (dataArr.length === 0) return null
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let context = { window: {} }
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SafeEval(dataArr[0], context)
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let posts = context.window._sharedData.entry_data.ProfilePage[0].graphql.user.edge_owner_to_timeline_media.edges
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let lastPost = posts[0].node
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// console.log(JSON.stringify(lastPost, null, 2))
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let postData = {}
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postData.id = lastPost.id
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postData.timestamp = lastPost.taken_at_timestamp
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postData.link = getPostLink(lastPost.shortcode)
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try {
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postData.text = lastPost.edge_media_to_caption.edges.length > 0 ? lastPost.edge_media_to_caption.edges[0].node.text : ''
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} catch (err) {
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postData.text = ''
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}
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lastPost = null
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posts = null
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delete context.window
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return postData
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}
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/**
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* @param {string} id ig user page id
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*/
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obj.getLastPost = async (id) => {
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if (typeof id !== 'string' || id.trim().length === 0) return null
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let param = {
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baseURL,
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method: 'get',
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url: `/${id}`,
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headers: {
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'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:68.0) Gecko/20100101 Firefox/68.0'
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// 'Referer': 'https://wiki.trj.tw'
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}
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}
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try {
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let result = await axios(param)
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if (!('data' in result) || typeof result.data !== 'string') return null
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let data = getInstagramData(result.data)
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return data
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} catch (err) {
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console.log(err.response.data || 'no response error data')
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return null
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}
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}
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