includes/login/src/getThreadPictures.js

"use strict";

const utils = require("../utils");
const log = require("npmlog");

module.exports = function (defaultFuncs, api, ctx) {
	return function getThreadPictures(threadID, offset, limit, callback) {
		let resolveFunc = function () { };
		let rejectFunc = function () { };
		const returnPromise = new Promise(function (resolve, reject) {
			resolveFunc = resolve;
			rejectFunc = reject;
		});

		if (!callback) {
			callback = function (err, friendList) {
				if (err) {
					return rejectFunc(err);
				}
				resolveFunc(friendList);
			};
		}

		let form = {
			thread_id: threadID,
			offset: offset,
			limit: limit
		};

		defaultFuncs
			.post(
				"https://www.facebook.com/ajax/messaging/attachments/sharedphotos.php",
				ctx.jar,
				form
			)
			.then(utils.parseAndCheckLogin(ctx, defaultFuncs))
			.then(function (resData) {
				if (resData.error) {
					throw resData;
				}
				return Promise.all(
					resData.payload.imagesData.map(function (image) {
						form = {
							thread_id: threadID,
							image_id: image.fbid
						};
						return defaultFuncs
							.post(
								"https://www.facebook.com/ajax/messaging/attachments/sharedphotos.php",
								ctx.jar,
								form
							)
							.then(utils.parseAndCheckLogin(ctx, defaultFuncs))
							.then(function (resData) {
								if (resData.error) {
									throw resData;
								}
								// the response is pretty messy
								const queryThreadID =
									resData.jsmods.require[0][3][1].query_metadata.query_path[0]
										.message_thread;
								const imageData =
									resData.jsmods.require[0][3][1].query_results[queryThreadID]
										.message_images.edges[0].node.image2;
								return imageData;
							});
					})
				);
			})
			.then(function (resData) {
				callback(null, resData);
			})
			.catch(function (err) {
				log.error("Error in getThreadPictures", err);
				callback(err);
			});
		return returnPromise;
	};
};