google-photos-album-image-url-fetch/dist/impl.js

extract public image url from google photos shared album url

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.isContainData = void 0;
exports.getSharedAlbumHtml = getSharedAlbumHtml;
exports.parsePhase1 = parsePhase1;
exports.parsePhase2 = parsePhase2;
exports.parsePhase3 = parsePhase3;
const gaxios_1 = require("gaxios");
const json5_1 = require("json5");
async function getSharedAlbumHtml(albumSharedurl, signal) {
    return (0, gaxios_1.request)({
        url: albumSharedurl,
        retryConfig: { retry: 4, retryDelay: 1000 },
        retry: true,
        signal: signal,
    }).then(r => r.data);
}
function parsePhase1(input) {
    const re = /(?<=AF_initDataCallback\()(?=.*data)(\{[\s\S]*?)(\);<\/script>)/g;
    return [...input.matchAll(re)].reduce((a, b) => (a.length > b[1].length ? a : b[1]), '');
}
function parsePhase2(input) {
    try {
        return (0, json5_1.parse)(input);
    }
    catch (_) {
        return null;
    }
}
const isContainData = (o) => typeof o === 'object' && o != null && 'data' in o;
exports.isContainData = isContainData;
const rawIsArray = Array.isArray;
const isArray = (a) => rawIsArray(a);
function parsePhase3(input) {
    if (!(0, exports.isContainData)(input)) {
        return null;
    }
    const d = input.data;
    if (!isArray(d) || d.length < 1) {
        return null;
    }
    const arr = d[1];
    if (!isArray(arr)) {
        return null;
    }
    return arr
        .map(e => {
        if (!isArray(e) || e.length < 6) {
            return null;
        }
        const uid = e[0];
        const imageUpdateDate = e[2];
        const albumAddDate = e[5];
        if (typeof uid !== 'string' || typeof imageUpdateDate !== 'number' || typeof albumAddDate !== 'number') {
            return null;
        }
        const detail = e[1];
        if (!isArray(detail) || detail.length < 3) {
            return null;
        }
        const url = detail[0];
        const width = detail[1];
        const height = detail[2];
        if (typeof url !== 'string' || typeof width !== 'number' || typeof height !== 'number') {
            return null;
        }
        return {
            uid: uid,
            url: url,
            width: width,
            height: height,
            imageUpdateDate: imageUpdateDate,
            albumAddDate: albumAddDate,
        };
    })
        .filter((e) => !(null === e));
}
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