image.js

var fs = require('fs');
var readline = require('readline');
var google = require('googleapis');
var googleAuth = require('google-auth-library');
var axios = require('axios');

const MY_PICTURE_FOLDER = '0B7knwYcCq901X2l1NXZZblB0blU';
// If modifying these scopes, delete your previously saved credentials
// at ~/.credentials/drive-nodejs-quickstart.json
var SCOPES = ['https://www.googleapis.com/auth/drive', 'https://www.googleapis.com/auth/drive.file'];
var TOKEN_DIR = (process.env.HOME || process.env.HOMEPATH ||
  process.env.USERPROFILE) + '/.credentials/';
var TOKEN_PATH = TOKEN_DIR + 'drive-nodejs-quickstart.json';

// Load client secrets from a local file.
fs.readFile('client_secret.json', function processClientSecrets(err, content) {
  console.log('1');
  if (err) {
    console.log('Error loading client secret file: ' + err);
    return;
  }
  // Authorize a client with the loaded credentials, then call the
  // Drive API.
  authorize(JSON.parse(content), insertPicture);
});

/** FUNCTIONS **/

/**
* Create an OAuth2 client with the given credentials, and then execute the
* given callback function.
*
* @param {Object} credentials The authorization client credentials.
* @param {function} callback The callback to call with the authorized client.
*/
function authorize(credentials, callback) {
  console.log('2');

  var clientSecret = credentials.installed.client_secret;
  var clientId = credentials.installed.client_id;
  var redirectUrl = credentials.installed.redirect_uris[0];
  var auth = new googleAuth();
  var oauth2Client = new auth.OAuth2(clientId, clientSecret, redirectUrl);
  // Check if we have previously stored a token.
  fs.readFile(TOKEN_PATH, function(err, token) {
    if (err) {
      getNewToken(oauth2Client, callback);
    } else {
      console.log('3');
      oauth2Client.credentials = JSON.parse(token);
      callback(oauth2Client);
    }
  });
}

/**
* Get and store new token after prompting for user authorization, and then
* execute the given callback with the authorized OAuth2 client.
*
* @param {google.auth.OAuth2} oauth2Client The OAuth2 client to get token for.
* @param {getEventsCallback} callback The callback to call with the authorized
*     client.
*/
function getNewToken(oauth2Client, callback) {
  console.log('4');
  var authUrl = oauth2Client.generateAuthUrl({
    access_type: 'offline',
    scope: SCOPES
  });
  console.log('Authorize this app by visiting this url: ', authUrl);
  var rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout
  });
  rl.question('Enter the code from that page here: ', function(code) {
    rl.close();
    oauth2Client.getToken(code, function(err, token) {
      console.log('5');

      if (err) {
        console.log('Error while trying to retrieve access token', err);
        return;
      }
      oauth2Client.credentials = token;
      storeToken(token);
      callback(oauth2Client);
    });
  });
}

/**
* Store token to disk be used in later program executions.
*
* @param {Object} token The token to store to disk.
*/
function storeToken(token) {
  try {
    console.log('6');
    fs.mkdirSync(TOKEN_DIR);
  } catch (err) {
    if (err.code != 'EEXIST') {
      throw err;
    }
  }

  console.log('7');
  fs.writeFile(TOKEN_PATH, JSON.stringify(token));
  console.log('Token stored to ' + TOKEN_PATH);
}

/**
* INSERT PICTURE FUNCTION -- called to place an img into a person's gDrive Pictures folder
*
* @param {google.auth.OAuth2} auth An authorized OAuth2 client.
*/
function insertPicture(auth) {
  console.log("Reached here");
  console.log(auth.credentials);
  console.log('8.1');
  var drive = google.drive('v2');

  var fileMetadata = {
    name: 'photo.png',
    mimeType: 'image/png',
    title: 'title21.png',
    parents: MY_PICTURE_FOLDER ? [{id: MY_PICTURE_FOLDER}] : []
  };

  var media = {
    mimeType: 'image/png',
    body: fs.createReadStream('./test.png')
  };

  drive.files.insert({
    resource: fileMetadata,
    media: media,
    auth: auth,
    fields: 'id'
  }, function(err, file) {
    if(err) {
      console.log(err);
    } else {
      console.log('9');
      console.log('File: ', file);

      drive.files.get({
        fileId: file.id,
        auth: auth,

      }, function (err, stuff) {
        if(err) {
          // Handle error
          console.log('9.5')
          console.log(err);
        } else {
          console.log('9');
          console.log('RESPONSE: ', stuff.selfLink);
        }
      });
    }
  });

}

/* (Currently Unused) Local Helper Function -- list out items in Google Drive */
// test that reads from google drive
function getItems(auth) {
  var service = google.drive('v3');
  service.files.list({
    auth: auth,
    pageSize: 20,
    fields: "nextPageToken, files(id, name)"
  }, function(err, response) {
    if (err) {
      console.log('The API returned an error: ' + err);
      return;
    }
    var files = response.files;
    if (files.length == 0) {
      console.log('No files found.');
    } else {
      console.log('Files:');
      for (var i = 0; i < files.length; i++) {
        var file = files[i];
        console.log('%s (%s)', file.name, file.id);
      }
    }
  });
}