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server.js
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/**
*
* Content Clarifier
* NodeJS server
*
*
*/
var express = require('express');
var bodyParser = require('body-parser');
var multer = require('multer');
var request = require('request');
var cors = require('cors');
var compression = require('compression'); // Support gzip compression
var vcapServices = require('vcap_services');
var Tokenizer = require('sentence-tokenizer');
var syllable = require('syllable');
var SparqlClient = require('sparql-client');
var fleschKincaid = require('flesch-kincaid');
var colemanLiau = require('coleman-liau');
var automatedReadability = require('automated-readability');
var schedule = require('node-schedule');
var striptags = require('striptags');
var htmlToText = require('html-to-text');
var fs = require('fs');
var download = require('download-file');
var DiscoveryV1 = require('watson-developer-cloud/discovery/v1');
// requires stanford-corenlp-full-2014-01-04.zip uzipped to jar dir in node_modules/stanford-simple-nlp
var StanfordSimpleNLP = require('stanford-simple-nlp');
var stanfordSimpleNLP = new StanfordSimpleNLP.StanfordSimpleNLP();
// Full text search for AAC symbols
var fulltextsearchlight = require('full-text-search-light');
var full_txt_search_loaded = null;
var currentSymbolsMap = null;
// Natural POS tagger
var natural = require('natural'),
classifier = new natural.BayesClassifier();
var Tagger = require("natural").BrillPOSTagger;
var base_folder = "./node_modules/natural/lib/natural/brill_pos_tagger/data/English";
var rules_file = base_folder + "/tr_from_posjs.txt";
var lexicon_file = base_folder + "/lexicon_from_posjs.json";
var default_category = 'N';
/* Model dependencies global variables */
var vocabulary;
var thesaurus;
var s_dictionary;
var ignoreList;
var operationRulesList;
var blackList;
var posList;
var nonLiteralsList;
var transitionsList;
var C = require('./constants.js');
/* Bluemix containers */
var bluemixContainers = null;
var bluemixContainersMap = {};
/* AAC_Symbols */
var AACSymbolsMap = {};
/* OAUTH authentication */
var oauth = require("./oauth");
var session = require("express-session");
var bmInfo = require("./bluemixParams");
var uuid = require("uuid");
/* Watson Services */
var watson = require('watson-developer-cloud');
var extend = require('util')._extend;
//Create the Natural Language Classifier object
var NaturalLanguageUnderstanding = require('./watson/natural-language-understanding');
var naturalLanguageUnderstanding = new NaturalLanguageUnderstanding();
var SpeechToText = require('./watson/speech-to-text');
var speechToText = new SpeechToText();
//Create the Tone Analyzer object Niyati
var ToneAnalyzer = require('./watson/tone-analyzer');
var toneAnalyzer = new ToneAnalyzer();
var toneResBuilder = require('./nlp_algs/tone_analyzer_res_builder');
var UrlUtil = require('./utils/url-util');
var urlUtil = new UrlUtil();
// Create the Extraction summary object
var ClarifierExtractionCondense = require('./nlp_algs/extraction_condense');
// Create the Chat summary object
var ClarifierChatCondense = require('./nlp_algs/extraction_condense_ww_chats');
//var StanfordSimpleNLP = require('stanford-simple-nlp');
// var testJSON = require('./model/moment.json');
// var testJSON = require('./model/momentLong.json');
// var testJSON = require('./model/veryBigMoment');
// var testJSON = require('./model/sushank');
//
var vocabMap = {};
var thesMap = {};
var sDictMap = {};
var ignoreListMap = {};
var operationalRulesMap = {};
var blacklistMap = {};
var appUsersMap = {};
var lemmaMap = {};
var properNounsMap = {};
var nonLiteralsMap = {};
var textPosMap = {};
var posListMap = {};
var transListMap = {};
var htmlFormattingMap = {}; // Fix #173
var words = []; // Input text into system, tokenized by spaces
var punctuation = []; // Punctuation corresponding to each word
var clients = [];
// Chat summarization
var domainKeywordsArr = [];
var questionArr = [];
var stopWordsArr = [];
var domainStopWordsArr = [];
var throttleParticipantsMap = {};
// End Chat summarization
var isLogged = false;
// setup middleware
var app = express();
app.use(cors()); // CORS-enabled for all origins
app.use(express.static(__dirname)); // Serve the web content
//app.use(bodyParser.json()); // parse POST requests
app.use(bodyParser.json({limit: '5mb'})); // support large file
app.use(bodyParser.urlencoded({extended: true, limit: '5mb'})); // support large files
app.use(express.cookieParser());
app.use(express.session({secret: "hQp9VcWTEAdRvpXH"}));
app.use(app.router);
app.use(compression()); // Support Gzip compression
// Redirect all .mybluemix.net requests to HTTPS
// https://www.tonyerwin.com/2014/09/redirecting-http-to-https-with-nodejs.html
app.enable('trust proxy');
app.use (function (req, res, next) {
if (req.secure) {
// request was via https, so do no special handling
next();
} else {
// request was via http, so redirect to https
res.redirect('https://' + req.headers.host + req.url);
}
});
app.options('*', cors()); // Enable CORS pre-flight across-the-board
// setup DB connection
var pool;
var mysql = require('mysql');
if(C.CC_ENVIRONMENT == 'staging')
{
pool = mysql.createPool({
acquireTimeout : 20000,
waitForConnections : true,
canRetry : true,
connectionLimit : C.CC_DB_STAGING_CONN_LIMIT,
host: C.CC_DB_STAGING_HOST,
port : C.CC_DB_STAGING_PORT,
user: C.CC_DB_STAGING_USER,
password: C.CC_DB_STAGING_PASS,
database : C.CC_DB_STAGING_NAME
});
}
else if(C.CC_ENVIRONMENT == 'production'){
pool = mysql.createPool({
acquireTimeout : 20000,
waitForConnections : true,
canRetry : true,
connectionLimit : C.CC_DB_PROD_CONN_LIMIT,
host: C.CC_DB_PROD_HOST,
port : C.CC_DB_PROD_PORT,
user: C.CC_DB_PROD_USER,
password: C.CC_DB_PROD_PASS,
database : C.CC_DB_PROD_NAME
});
}
else{
console.error("SERVER ERROR - environment not set!");
}
//---------------- Variables ---------------------
var appInfo = JSON.parse(process.env.VCAP_APPLICATION || "{}");
var services = JSON.parse(process.env.VCAP_SERVICES || "{}");
var port = (process.env.VCAP_APP_PORT || 3000);
var host = (process.env.VCAP_APP_HOST || 'localhost');
process.on('uncaughtException', function (err) {
console.error("EXCEPTION detected in server:" + err);
if (typeof err === 'object') {
if (err.message) {
console.log('\nMessage: ' + err.message)
}
if (err.stack) {
console.log('\nStacktrace:')
console.log('====================')
console.log(err.stack);
}
} else {
console.log('dumpError :: argument is not an object');
}
});
// ------------------ Services ------------------------
app.get('/',function(req,res,next){
res.sendfile('./public/index.html');
});
app.post('/getUrlText', function(req,res,next){
console.log(req.body.url);
urlUtil.evaluateURLOrDocumentReturnText(req.body.url, function(response) {
// Surface failures from urlUtil.evaluateURLOrDocumentReturnText
if(response.statusCode != 200){
res.writeHead(200, {"Content-Type": "application/json"});
responseObj = { status: "error", code: response.statusCode, message: response.message };
var json = JSON.stringify(responseObj);
res.end(json);
return;
}
else{
res.writeHead(200, {"Content-Type": "application/json"});
responseObj = { status: "success", code: response.statusCode, text: response.text };
var json = JSON.stringify(responseObj);
res.end(json);
return;
}
});
});
app.get('/cle-app-reader',function(req,res,next){
res.sendfile('./public/Editor2.html');
});
app.get('/cle-app-select',function(req,res,next){
res.sendfile('./public/Editor3.html');
});
app.get('/cc-plugin-app',function(req,res,next){
res.sendfile('./public/Editor4.html');
});
app.get('/app',function(req,res,next){
if(req.get('host').includes("contentclarifier.mybluemix.net")){
if(req.session.OAUTH_STATE == null){
res.redirect('back');
}
else{
pool.getConnection(function(err, connection) {
if(err) {
console.error('DB Error in getting connection: ' + err);
}
connection.query('SELECT DISTINCT DEMO_OAUTH_STATE FROM usr_api_keys WHERE DEMO_OAUTH_STATE = ?', [req.session.OAUTH_STATE.toString()], function(err, results) {
connection.release(); // always put connection back in pool after last query
if (err) {
console.error('Error while performing confirm login for DEMO_OAUTH_STATE = ' + req.session.OAUTH_STATE.toString() + ' : ' + err);
res.sendfile('./public/index.html');
}
else if(results[0] === undefined){ // Didn't find this DEMO_OAUTH_STATE, so not logged in
res.sendfile('./public/index.html');
}
else {
console.error('User logged in with DEMO_OAUTH_STATE = ' + req.session.OAUTH_STATE.toString());
res.sendfile('./public/Editor.html');
}
}); // end connection
}); // end pool
}
}
else{
res.sendfile('./public/Editor.html');
}
});
app.post('/api-login',function(req,res,next){ //
apiLogin(req,res);
});
//Each Content Clarifier API calls this function to authenticate and make the call
function doAPIPost(action, req, res){
if(req.body.id === undefined || req.body.apikey === undefined){
res.set({"WWW-Authenticate": "Basic realm=\"Restricted Area\""}).status(401).send("Authentication Failure");
return;
}
return pool.getConnection(function(err, connection) {
if(err) {
console.error('DB Error in getting connection: ' + err);
res.status(500).json({ error: 'DB Error occurred during API authentication.' });
}
try{
connection.query(C.API_KEY_QUERY, [req.body.id.toLowerCase(),req.body.apikey], function(err, results) {
connection.release(); // always put connection back in pool after last query
if (err) {
console.error('Error while performing authentication for ID = ' + req.body.id + ' : ' + err);
res.status(500).json({ error: 'Error while performing authentication for ID = ' + req.body.id });
}
else if(results[0] === undefined){ // Didn't find this ID/API_Key combination
console.error('The API Key could not be authenticated for ID = ' + req.body.id);
res.set({"WWW-Authenticate": "Basic realm=\"Restricted Area\""}).status(401).send("Authentication Failure");
}
else {
if(C.DEBUG_VERBOSE_LOGGING) console.log(' The authenticated user key is: ', results[0].Email);
action(req,res);
}
}); // end connection
}
catch(e){
console.error('A DB connection timeout occurred. This is usually temporary. Please retry the operation');
res.status(504).json({ error: 'A DB connection timeout occurred. This is usually temporary. Please retry the operation.' });
}
}); // end pool
}
app.post(C.API_CONTEXTUAL_SIMPLIFY, function(req,res,next){
return doAPIPost(apiContextualSimplify, req, res);
});
app.post(C.API_CONTEXTUAL_SIMPLIFY_URL,function(req,res,next){
return doAPIPost(apiContextualSimplifyURL, req, res);
});
app.post(C.API_CONDENSE,function(req,res,next){ //
return doAPIPost(apiCondense, req, res);
});
app.post(C.API_CONDENSE_URL,function(req,res,next){ //
return doAPIPost(apiCondenseURL, req, res);
});
app.post(C.API_CONDENSE_AND_SIMPLIFY,function(req,res,next){ //
return doAPIPost(apiCondenseAndSimplify, req, res);
});
app.post(C.API_CONDENSE_AND_SIMPLIFY_URL,function(req,res,next){ //
return doAPIPost(apiCondenseAndSimplifyURL, req, res);
});
app.post(C.API_CONDENSE_WW_CHAT,function(req,res,next){ //
return doAPIPost(apiCondenseWatsonWorkspaceChat, req, res);
});
app.post('/api-train',function(req,res,next){ //
return doAPIPost(apiTrain, req, res);
});
//Added By Niyati For Analyze_Tone Api
app.post(C.API_ANALYZE_TONE,function(req,res,next){
return doAPIPost(apiToneAnalyzer, req, res);
});
app.post(C.API_ANALYZE_TONE_URL,function(req,res,next){
return doAPIPost(apiToneAnalyzerURL, req, res);
});
app.post(C.API_HYPHENATE,function(req,res,next){
return doAPIPost(apiHyphenate, req, res);
});
// ------------------ Set the client credentials and the OAuth2 server ------------------------
app.get('/sso', function(req, res, next) {
//res.redirect('https://localhost:3000/app');
//console.log("hostname:"+ req.get('host'));
if(!req.get('host').includes("contentclarifier.mybluemix.net")){
res.redirect('/app');
}else{
if(C.DEBUG_VERBOSE_LOGGING) console.log("host name is:"+req.get('host'));
var state = uuid.v4();
var clientid= 'ibma_clarifier';
var secret = 'hQp9VcWTEAdRvpXH';
//console.log(req.session);
req.session.OAUTH_STATE = state;
// console.log("/sso");
// console.log(req.session.OAUTH_STATE.toString());
var hostStr = 'https://mccp.ng.bluemix.net/login';
if (req.query["X-Bluemix-Authorization-Endpoint"]) {
hostStr = req.query["X-Bluemix-Authorization-Endpoint"];
}
hostStr += "/oauth/authorize?";
if (req.query["X-Bluemix-Authorization-Endpoint-Query"]) {
hostStr += req.query["X-Bluemix-Authorization-Endpoint-Query"] + "&";
}
hostStr += "state="+state +
"&response_type=code" +
"&client_id="+clientid +
"&client_secret="+secret +
"&redirect_uri="+"https://contentclarifier.mybluemix.net/auth/sso/callback";
// console.log("redirec url: "+ hostStr);
res.redirect(hostStr);
}
});
app.get("/auth/sso/callback", function(req, res, next) {
//console.log("/auth/sso/callback");
//console.log(req.session.OAUTH_STATE.toString());
var code = req.query.code;
if (req.session.OAUTH_STATE != req.query.state) {
res.set({"WWW-Authenticate": "Basic realm=\"Restricted Area\""}).status(401).send("Authentication Failure");
return;
} else if (code) {
oauth.getAccessToken(code, function(token) {
if (token) {
req.session.USER_TOKEN = token;
oauth.getUserInfo(token, function(userInfo) {
pool.getConnection(function(err, connection) {
if(err) {
console.error('DB Error in getting connection: ' + err);
res.set({"WWW-Authenticate": "Basic realm=\"Restricted Area\""}).status(401).send("Authentication Failure");
}
connection.query('UPDATE usr_api_keys SET DEMO_OAUTH_STATE = ? WHERE Email = ?', [req.session.OAUTH_STATE.toString(),userInfo.email], function(err, results) {
connection.release(); // always put connection back in pool after last query
if (err) {
console.error('Error while updating DEMO_OAUTH_STATE for ID = ' + userInfo.email + ' : ' + err);
res.set({"WWW-Authenticate": "Basic realm=\"Restricted Area\""}).status(401).send("Connection Failure");
}
else { // begin authenticated demo else
if(C.DEBUG_VERBOSE_LOGGING) console.log('oauth.getAccessToken() The authenticated demo user is: ', userInfo.email);
req.session.USER_ID = userInfo.user_id;
req.session.EMAIL= userInfo.email;
var domain = userInfo.email;
if(C.DEBUG_VERBOSE_LOGGING) console.log("processing login by usersentry: "+userInfo.email);
if( hasDemoUsersEntry(userInfo.email) !== undefined ){
domain = domain.substring(domain.indexOf("@")+1);
req.session.USER_DOMAIN = domain;
if (req.session.OAUTH_INSTANCEINFO) {
InstanceInfo.get(req.session.OAUTH_INSTANCEINFO, function (err, doc) {
if (doc.userDomains.indexOf(domain) == -1) {
doc.userDomains.push(domain);
doc.save();
}
});
}
if (req.session.OAUTH_REDIR) {
res.redirect(req.session.OAUTH_REDIR);
return;
} else {
console.log(" user exists ");
res.redirect('https://contentclarifier.mybluemix.net/app');
return;
}
}
else{
// Auto register the user with CC app
//
console.log("Auto register the user with CC app: "+userInfo.email);
pool.getConnection(function(err, connection) {
if(err) {
console.error('DB Error in getting connection: ' + err);
res.send(401,'A problem occurred while authenticating your user ID <b>'+req.body.id+'<b /> with the application. Please return to the Content Clarifier app and retry operation. If the error persists, please send a note to <b>scottw1@us.ibm.com</b>');
}
var generatedAPIKey = makeid().toUpperCase();
// INSERT IGNORE - If new record, inserts, else ignores the insert operation on duplicate key (Email) found
connection.query('INSERT IGNORE INTO usr_api_keys SET Name=?,Email=?,API_Key=?,DEMO_OAUTH_STATE=?,gdpr_flag = ?',
['',userInfo.email,generatedAPIKey,req.session.OAUTH_STATE.toString(), 0], function(err, results) {
connection.release(); // always put connection back in pool after last query
if (err) {
console.error('Error while inserting into USR_API_KEYS' + err);
}
else if(results.affectedRows == 0){ // User already exists.
if(C.DEBUG_VERBOSE_LOGGING) console.log('Returning User identified with ID: ' + req.session.EMAIL);
}
else {
initAppUsersMap();
console.log("user does not exists");
if(C.DEBUG_VERBOSE_LOGGING) console.log('New User created with ID = ' + req.session.EMAIL);
res.redirect('https://contentclarifier.mybluemix.net/app');
}
}); // end connection
}); // end pool
}
} // end authenticated demo else
}); // end connection
}); // end pool
}); //userinfo function close
} // if token close
}); //accesstokeb fucntion close
} else {
res.set({"WWW-Authenticate": "Basic realm=\"Restricted Area\""}).status(401).send("Authentication Failure");
}
});
app.get('/confirm-login', function (req, res, next) {
//console.log("/confirm-login");
//console.log(req.session.OAUTH_STATE.toString());
if(req.session.OAUTH_STATE == null){
res.send('false');
}
pool.getConnection(function(err, connection) {
if(err) {
console.error('DB Error in getting connection: ' + err);
}
connection.query('SELECT DISTINCT DEMO_OAUTH_STATE FROM usr_api_keys WHERE DEMO_OAUTH_STATE = ?', [req.session.OAUTH_STATE.toString()], function(err, results) {
connection.release(); // always put connection back in pool after last query
if (err) {
console.error('Error while performing confirm login for DEMO_OAUTH_STATE = ' + req.session.OAUTH_STATE.toString() + ' : ' + err);
res.send('false');
}
else if(results[0] === undefined){ // Didn't find this DEMO_OAUTH_STATE, so not logged in
res.send('false');
}
else {
if(C.DEBUG_VERBOSE_LOGGING)console.log('User logged in with DEMO_OAUTH_STATE = ' + req.session.OAUTH_STATE.toString());
res.send('true');
}
}); // end connection
}); // end pool
}
);
/*
Special API that can only be invoked from the web app client AFTER
successful SSO authentication.
*/
app.get('/user-credentials', function (req, res, next) {
var responseObj;
var json;
res.writeHead(200, {"Content-Type": "application/json"});
if(C.DEBUG_VERBOSE_LOGGING)console.log("User email is :"+ req.session.EMAIL.toLowerCase().trim() );
if(C.DEBUG_VERBOSE_LOGGING)console.log("User OAUTH State is :"+ req.session.OAUTH_STATE.toString());
console.log("Retreiving User Credentials" + req.session.OAUTH_STATE);
pool.getConnection(function(err, connection) {
if(err) {
console.error('DB Error in getting connection: ' + err);
responseObj = { status: "error" };
json = JSON.stringify(responseObj);
res.end(json);
return;
}
connection.query('SELECT API_Key, Email FROM usr_api_keys WHERE DEMO_OAUTH_STATE=?', [req.session.OAUTH_STATE.toString()], function(err, results) {
connection.release(); // always put connection back in pool after last query
if (err) {
console.error('Database Error while querying credentials: ' + err);
responseObj = { status: "error" };
json = JSON.stringify(responseObj);
res.end(json);
return;
}
else if(results[0] === undefined){ // No results
console.error('No User credentials found for User: ' + req.session.EMAIL);
responseObj = { status: "false" };
json = JSON.stringify(responseObj);
res.end(json);
return;
}
else {
console.log("Credentials found " + results[0].API_Key);
console.log("Credentials found " + results[0].Email); if(C.DEBUG_VERBOSE_LOGGING)console.log('User credentials returned for User: ' + req.session.EMAIL);
if(C.DEBUG_VERBOSE_LOGGING)console.log("Credentials found " + results[0].API_Key);
if(C.DEBUG_VERBOSE_LOGGING)console.log("Credentials found2 " + results[0]['API_Key']);
responseObj = { status: "success", id: results[0].Email.toLowerCase().trim(), key: results[0].API_Key };
json = JSON.stringify(responseObj);
res.end(json);
return;
}
}); // end connection
}); // end pool
}
);
app.get('/logout', function (req, res, next) {
//console.log("/logout");
//console.log(req.session.OAUTH_STATE.toString());
if(req.get('host').includes("contentclarifier.mybluemix.net")){
pool.getConnection(function(err, connection) {
if(err) {
console.error('DB Error in getting connection: ' + err);
}
connection.query('UPDATE usr_api_keys SET DEMO_OAUTH_STATE = null WHERE DEMO_OAUTH_STATE = ?', [req.session.OAUTH_STATE.toString()], function(err, results) {
connection.release(); // always put connection back in pool after last query
if (err) {
console.error('Error while performing logging out for DEMO_OAUTH_STATE = ' + req.session.OAUTH_STATE.toString() + ' : ' + err);
res.redirect('https://contentclarifier.mybluemix.net/app');
//res.sendfile('./public/Editor.html');
}
else {
console.error('Logging out user with DEMO_OAUTH_STATE = ' + req.session.OAUTH_STATE.toString());
req.session.OAUTH_STATE=null;
//res.sendfile('./public/index.html');
var redirect = 'https://contentclarifier.mybluemix.net';
res.redirect('https://login.ng.bluemix.net/UAALoginServerWAR/logout.jsp?redirect='+redirect);
return;
}
}); // end connection
}); // end pool
}
else{
res.sendfile('./public/Editor.html');
}
});
app.use(function (req, res, next) {
/*if (req.originalUrl.length > 5 && req.originalUrl.substring(0, 5) === "/dap/"
|| req.originalUrl === "/api/oauth/login"
) {
*/
res.header('Access-Control-Allow-Origin', '*');
res.header('Access-Control-Allow-Methods', 'GET, POST');
res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept');
//}
next();
});
// ------------------ File Upload ------------------------
// REF: https://github.com/watson-developer-cloud/document-conversion-nodejs/blob/master/app.js
var storage = multer.diskStorage({ //multers disk storage settings
destination: function (req, file, cb) {
cb(null, './uploads/');
},
filename: function (req, file, cb) {
var cleanFileName = file.originalname.toString().replace(/[^A-Z0-9.]+/ig, "_");
cb(null, `${Date.now()}-${cleanFileName}`);
//cb(null, `${Date.now()}-${file.originalname}`);
}
});
var upload = multer({ //multer settings
storage: storage
}).single('file');
// API path that will upload the files
app.post('/upload', function(req, res) {
upload(req,res,function(err){
if(err){
res.json({status:"error", code:400, message:err });
return;
}
var fileURL = 'http://'+ host + ':' + port + '/uploads/'+ req.file.filename;
if(C.DEBUG_VERBOSE_LOGGING) console.log(fileURL);
// 1. Return file contents
// 2. Delete the file
urlUtil.evaluateURLOrDocumentReturnText(fileURL, function(response) {
// Surface failures from urlUtil.evaluateURLOrDocumentReturnText
if(response.statusCode != 200){
res.json({status: "error", code: response.statusCode, message: response.message });
}
else{
res.json({status: "success", code: response.statusCode, text: response.text });
}
fs.unlink('./uploads/'+ req.file.filename,function(err){
if(err){
console.error('Failed to delete file: /uploads/'+ req.file.filename + ' Err: '+ err);
}
});
}); // end urlUtil
});// end upload
});
// ------------------ Text of Speech ------------------------
var textToSpeech = watson.text_to_speech({
version: 'v1',
username: C.WATSON_TEXT_TO_SPEECH_USER,
password: C.WATSON_TEXT_TO_SPEECH_PASS
});
var ttsConfig = extend({
version: 'v1',
url: 'https://stream.watsonplatform.net/text-to-speech/api',
username: C.WATSON_TEXT_TO_SPEECH_USER,
password: C.WATSON_TEXT_TO_SPEECH_PASS
}, vcapServices.getCredentials('text_to_speech'));
var ttsAuthService = watson.authorization(ttsConfig);
//var tts = watson.text_to_speech(ttsConfig);
app.get('/api/token', function(req, res) {
ttsAuthService.getToken({url: ttsConfig.url}, function(err, token) {
if (err) {
console.error('Error retrieving token: ', err);
return res.status(500).send('Error retrieving token')
}
// console.log(token);
res.send(token);
});
});
app.post('/api/chkGdpr', function(req, res) {
console.log("Id from Request: "+req.body.id );
pool.getConnection(function(err, connection) {
if(err) {
console.error('DB Error in getting connection: ' + err);
res.set({"WWW-Authenticate": "Basic realm=\"Restricted Area\""}).status(401).send("Authentication Failure");
}
connection.query(C.API_KEY_QUERY, [req.body.id.toLowerCase(),req.body.apikey], function(err, results) {
connection.release(); // always put connection back in pool after last query
if (err) {
console.error('Error while performing authentication for ID = ' + req.body.id + ' : ' + err);
res.status(500).json({ error: 'Error while performing authentication for ID = ' + req.body.id });
}
else if(results[0] === undefined){ // Didn't find this ID/API_Key combination
console.error('The API Key could not be authenticated for ID = ' + req.body.id);
res.set({"WWW-Authenticate": "Basic realm=\"Restricted Area\""}).status(401).send("Authentication Failure");
}
else {
console.log(' The authenticated user key is: ', results[0].gdpr_flag);
var responseObj = { status: "OK",
key: results[0].gdpr_flag};
var json = JSON.stringify(responseObj);
res.end(json);
// res.send(results[0].gdpr_flag);
}
}); // end connection
});
});
app.post('/api/updateGdpr', function(req, res) {
if( hasDemoUsersEntry(req.body.id.toLowerCase()) !== undefined ){
pool.getConnection(function(err, connection) {
if(err) {
console.error('DB Error in getting connection: ' + err);
res.set({"WWW-Authenticate": "Basic realm=\"Restricted Area\""}).status(401).send("Authentication Failure");
}
connection.query('UPDATE usr_api_keys SET gdpr_flag = ? WHERE Email = ?', [req.body.flag ,req.body.id.toLowerCase()], function(err, results) {
connection.release(); // always put connection back in pool after last query
if (err) {
console.error('Error while performing authentication for ID = ' + req.body.id + ' : ' + err);
res.status(500).json({ error: 'Error while performing authentication for ID = ' + req.body.id });
}
else {
console.log(' GDPR flag is updated');
var responseObj = { status: "OK"};
var json = JSON.stringify(responseObj);
res.end(json);
// res.send(results[0].gdpr_flag);
}
}); // end connection
});
}else{
var responseObj = { status: "OK",
key: 0};
var json = JSON.stringify(responseObj);
res.end(json);
pool.getConnection(function(err, connection) {
if(err) {
console.error('DB Error in getting connection: ' + err);
res.send(401,'A problem occurred while authenticating your user ID <b>'+req.body.id+'<b /> with the application. Please return to the Content Clarifier app and retry operation. If the error persists, please send a note to <b>scottw1@us.ibm.com</b>');
}
var generatedAPIKey = makeid().toUpperCase();
// INSERT IGNORE - If new record, inserts, else ignores the insert operation on duplicate key (Email) found
connection.query('INSERT IGNORE INTO usr_api_keys SET Name=?,Email=?,API_Key=?,DEMO_OAUTH_STATE=?,gdpr_flag = ?',
['',userInfo.email,generatedAPIKey,req.session.OAUTH_STATE.toString(), 1], function(err, results) {
connection.release(); // always put connection back in pool after last query
if (err) {
console.error('Error while inserting into USR_API_KEYS' + err);
}
else if(results.affectedRows == 0){ // User already exists.
if(C.DEBUG_VERBOSE_LOGGING) console.log('Returning User identified with ID: ' + req.session.EMAIL);
}
else {
initAppUsersMap();
res.redirect('https://contentclarifier.mybluemix.net/app');
if(C.DEBUG_VERBOSE_LOGGING) console.log('New User created with ID = ' + req.session.EMAIL);
}
}); // end connection
}); // end pool
}
});
app.get('/api/synthesize', function(req, res, next) {
var transcript = textToSpeech.synthesize(req.query);
transcript.on('response', function(response) {
if (req.query.download) {
response.headers['content-disposition'] = 'attachment; filename=transcript.ogg';
}
});
transcript.on('error', function(error) {
next(error);
});
transcript.pipe(res);
});
app.get('/api/speech-to-text/token', function(req, res) {
speechToText.getToken(function(response) {
if(response.token == null) {
var error = 'There was a problem getting the speech to text token: ' + response.statusCode + ', ' + response.status + ', ' + response.message;
console.error(error);
res.status(500).send(error);
return;
}
//console.log('in server.js, response.token: ' + response.token);
res.status(200).send(response.token);
return;
});
});
app.get('/bower_components/watson-speech/dist/watson-speech.js', function(req, res) {
res.sendfile ('./public/bower_components/watson-speech/dist/watson-speech.js');
});
app.get('/bower_components/fetch/fetch.js', function(req, res) {
res.sendfile ('./public/bower_components/fetch/fetch.js');
});
// ------------------ APIs ------------------------
//Shared functions used by the API's
function checkIfEnhancedMode(req){
var enhanceContentMode = undefined;
if(req.body.options !== undefined && req.body.options !== null){
try{
var reqOptions = JSON.parse(req.body.options);
if(reqOptions.enhanceContentMode !== undefined && reqOptions.enhanceContentMode !== null){
enhanceContentMode = reqOptions.enhanceContentMode;
}
}
catch(e){ // Got here then the input is a JSON object, as passed by httprequest
enhanceContentMode = req.body.options.enhanceContentMode;
}
}
return enhanceContentMode;
}
function getOutputMode(req){
var outputMode = 0;
if(req.body.options !== undefined && req.body.options !== null){
try{
var reqOptions = JSON.parse(req.body.options);
if(reqOptions.outputMode !== undefined && reqOptions.outputMode !== null){
outputMode = reqOptions.outputMode;
}
}
catch(e){
outputMode = req.body.options.outputMode;
}
}
return outputMode;
}
// For now just 0, here for future support
function getCalculateReadingLevels(req){
var calculateReadingLevels = 0;
// if(req.body.options.calculateReadingLevels !== undefined && req.body.options.calculateReadingLevels !== null){
// calculateReadingLevels = req.body.options.calculateReadingLevels;
// }
return calculateReadingLevels;
}
function checkCalculateReadingLevelsReturnResponseObj(calculateReadingLevels, simplifiedText, originalText){
var responseObj;
if(calculateReadingLevels == C.RETURN_READING_LEVELS){
responseObj = { status: "OK",
usage: C.TERM_OF_USE_MESSAGE,
simplified: simplifiedText,
original: originalText,
fleschKincaidInput: calculateFleschKincaid(text),
fleschKincaidOutput: calculateFleschKincaid(formatStringOutput(simplifiedText,2)),
colemanLiauInput: calculateColemanLiau(text),
colemanLiauOutput: calculateColemanLiau(formatStringOutput(simplifiedText,2)),
ariInput: calculateAutomatedReadabilityIndex(text),
ariOutput: calculateAutomatedReadabilityIndex(formatStringOutput(simplifiedText,2)),
};
logReadabilityCalculations(responseObj);
if(C.DEBUG_VERBOSE_LOGGING)console.log(getLoggingTimestamp() +' Calculation of reading levels complete.');
}
else{
responseObj = { status: "OK",
usage: C.TERM_OF_USE_MESSAGE,
simplified: simplifiedText,
original: originalText };
}
return responseObj;
}
function buildAndCallAPIContextSimplify(req, text){
var apiCall = (req.body.options.flavor != undefined && req.body.options.flavor == 'url') ? C.API_CONTEXTUAL_SIMPLIFY_URL : C.API_CONTEXTUAL_SIMPLIFY;
callMeterAPICalls(apiCall, req, text)
}
function buildAndCallAPICondense(req, text){
var apiCall = (req.body.options.flavor != undefined && req.body.options.flavor == 'url') ? C.API_CONDENSE_URL : C.API_CONDENSE;
callMeterAPICalls(apiCall, req, text)
}
function buildAndCallAPICondenseAndSimplify(req, text){
var apiCall = (req.body.options.flavor != undefined && req.body.options.flavor == 'url') ? C.API_CONDENSE_AND_SIMPLIFY_URL : C.API_CONDENSE_AND_SIMPLIFY;
callMeterAPICalls(apiCall, req, text);
}
function callMeterAPICalls(apiCall, req, text){
meterAPICalls(apiCall,
JSON.stringify(req.body.options),
text.length,
req.body.id,
req.body.apikey);
}