cyber-fca/src/changeAvatar.js

A Facebook chat api for messenger bots.

"use strict";

const utils = require("../utils");
// @NethWs3Dev

module.exports = function (defaultFuncs, api, ctx) {
  function handleUpload(image, callback) {
    const uploads = [];

    const form = {
      profile_id: ctx.userID,
      photo_source: 57,
      av: ctx.userID,
      file: image,
    };

    uploads.push(
      defaultFuncs
        .postFormData(
          "https://www.facebook.com/profile/picture/upload/",
          ctx.jar,
          form,
          {},
        )
        .then(utils.parseAndCheckLogin(ctx, defaultFuncs))
        .then(function (resData) {
          if (resData.error) {
            throw resData;
          }
          return resData;
        }),
    );

    // resolve all promises
    Promise.all(uploads)
      .then(function (resData) {
        callback(null, resData);
      })
      .catch(function (err) {
        console.error("handleUpload", err);
        return callback(err);
      });
  }

  return function changeAvatar(
    image,
    caption = "",
    timestamp = null,
    callback,
  ) {
    let resolveFunc = function () {};
    let rejectFunc = function () {};
    const returnPromise = new Promise(function (resolve, reject) {
      resolveFunc = resolve;
      rejectFunc = reject;
    });

    if (!timestamp && utils.getType(caption) === "Number") {
      timestamp = caption;
      caption = "";
    }

    if (
      !timestamp &&
      !callback &&
      (utils.getType(caption) == "Function" ||
        utils.getType(caption) == "AsyncFunction")
    ) {
      callback = caption;
      caption = "";
      timestamp = null;
    }

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

    if (!utils.isReadableStream(image))
      return callback("Image is not a readable stream");

    handleUpload(image, function (err, payload) {
      if (err) {
        return callback(err);
      }

      const form = {
        av: ctx.userID,
        fb_api_req_friendly_name: "ProfileCometProfilePictureSetMutation",
        fb_api_caller_class: "RelayModern",
        doc_id: "5066134240065849",
        variables: JSON.stringify({
          input: {
            caption,
            existing_photo_id: payload[0].payload.fbid,
            expiration_time: timestamp,
            profile_id: ctx.userID,
            profile_pic_method: "EXISTING",
            profile_pic_source: "TIMELINE",
            scaled_crop_rect: {
              height: 1,
              width: 1,
              x: 0,
              y: 0,
            },
            skip_cropping: true,
            actor_id: ctx.userID,
            client_mutation_id: Math.round(Math.random() * 19).toString(),
          },
          isPage: false,
          isProfile: true,
          scale: 3,
        }),
      };

      defaultFuncs
        .post("https://www.facebook.com/api/graphql/", ctx.jar, form)
        .then(utils.parseAndCheckLogin(ctx, defaultFuncs))
        .then(function (resData) {
          if (resData.errors) {
            throw resData;
          }
          return callback(null, resData[0].data.profile_picture_set);
        })
        .catch(function (err) {
          console.error("changeAvatar", err);
          return callback(err);
        });
    });

    return returnPromise;
  };
};