stream-api/backend/seafile.js

#!/usr/bin/env node
const esprima = require('esprima');
const cheerio = require('cheerio');
const axios = require('axios');

let url = null;

for(let i=0; i<process.argv.length; i++) {
    const arg = process.argv[i];
    if(arg.startsWith("http://") || arg.startsWith("https://")) {
        url = arg;
    }
}

if(url !== null) {
    axios.get(url).then((resp) => {
        const dom = cheerio.load(resp.data, {xmlMode: false});
        const tags = dom('script').get();
        const data = {};
        let props = [];
        for(let i=0; i<tags.length; i++) {
            const children = tags[i].children;
            for(let j=0; j<children.length; j++) {
                let tdata = {};
                let assign = true;
                try {
                    tdata = children[j].data;
                } catch(err) {
                    assign = false;
                    console.log(err);
                }
                if(assign) {
                    const script = esprima.parseScript(tdata);
                    for(let k=0; k<script.body.length; k++) {
                        const prop = script.body[k].expression.right.properties;
                        for(let l=0; l<prop.length; l++) {
                            props = [...props, ...(prop[l].value.properties)];
                        }
                    }
                }
            }
        }
        for(let i=0; i<props.length; i++) {
            const prop = props[i];
            if((prop.key.type === "Identifier") && (prop.value.type === "Literal")) {
                data[prop.key.name] = prop.value.value;
            }
        }
        for(let i=0; i<props.length; i++) {
            const prop = props[i];
            const valid = (new Boolean(prop.value.value)).valueOf();
            if((prop.key.type === "Identifier") && (prop.value.type === "Literal") && valid) {
                data[prop.key.name] = prop.value.value;
            }
        }
        console.log(JSON.stringify(data));
    })
}