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"https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz", @@ -1356,6 +1631,28 @@ "node": ">= 0.8" } }, + "node_modules/web-streams-polyfill": { + "version": "3.3.2", + "resolved": "https://registry.npmjs.org/web-streams-polyfill/-/web-streams-polyfill-3.3.2.tgz", + "integrity": "sha512-3pRGuxRF5gpuZc0W+EpwQRmCD7gRqcDOMt688KmdlDAgAyaB1XlN0zq2njfDNm44XVdIouE7pZ6GzbdyH47uIQ==", + "engines": { + "node": ">= 8" + } + }, + "node_modules/webidl-conversions": { + "version": "3.0.1", + "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-3.0.1.tgz", + "integrity": "sha512-2JAn3z8AR6rjK8Sm8orRC0h/bcl/DqL7tRPdGZ4I1CjdF+EaMLmYxBHyXuKL849eucPFhvBoxMsflfOb8kxaeQ==" + }, + "node_modules/whatwg-url": { + "version": "5.0.0", + "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-5.0.0.tgz", + "integrity": "sha512-saE57nupxk6v3HY35+jzBwYa0rKSy0XR8JSxZPwgLr7ys0IBzhGviA1/TUGJLmSVqs8pb9AnvICXEuOHLprYTw==", + "dependencies": { + "tr46": "~0.0.3", + "webidl-conversions": "^3.0.0" + } + }, "node_modules/wrap-ansi": { "version": "7.0.0", "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz", diff --git a/package.json b/package.json index 2475ff8..d6e9d28 100644 --- a/package.json +++ b/package.json @@ -19,8 +19,11 @@ }, "homepage": "https://github.com/FAC29A/Server-Zukhra_Paing_Alex#readme", "dependencies": { + "axios": "^1.6.7", + "dotenv": "^16.4.1", "ejs": "^3.1.9", "express": "^4.18.2", + "openai": "^4.26.0", "uuid": "^9.0.1" }, "devDependencies": { diff --git a/src/functions.js b/src/functions.js index 7551946..8364ac7 100644 --- a/src/functions.js +++ b/src/functions.js @@ -1,3 +1,12 @@ +//Needed for HTTP post to the moderation endpoint URL +const axios = require('axios') + +const { OpenAI } = require('openai') + +const openai = new OpenAI({ + apiKey: process.env.OPENAI_API_KEY, +}) + function sanitize(string) { return string .replace(/&/g, '&') @@ -7,4 +16,43 @@ function sanitize(string) { .replace(/'/g, ''') } -module.exports = { sanitize } +async function moderate(message) { + try { + const response = await axios.post( + 'https://api.openai.com/v1/moderations', + { input: message }, + { + headers: { + Authorization: `Bearer ${process.env.OPENAI_API_KEY}`, + 'Content-Type': 'application/json', + }, + } + ) + + const results = response.data.results + if (results && results.length > 0) { + const flaggedCategories = Object.keys(results[0].categories).filter( + (category) => results[0].categories[category] + ) + return flaggedCategories + } else { + console.log('No categories were flagged.') + } + } catch (error) { + console.error('Error calling OpenAI moderation:', error) + } + + return [] +} + +function formatListWithAnd(array) { + if (array.length === 0) return ''; + if (array.length === 1) return array[0]; + if (array.length === 2) return array.join(' and '); + + // For more than two elements, join all but the last with a comma, and add 'and' before the last element + return `${array.slice(0, -1).join(', ')} and ${array[array.length - 1]}`; + } + + +module.exports = { sanitize, moderate, formatListWithAnd } diff --git a/src/server.js b/src/server.js index 072d165..5fa9505 100644 --- a/src/server.js +++ b/src/server.js @@ -1,7 +1,10 @@ +// Load environment variables from .env file +require('dotenv').config() + const express = require('express') const server = express() -const { sanitize } = require('./functions') +const { sanitize, moderate, formatListWithAnd } = require('./functions') //Set view engine to EJS server.set('view engine', 'ejs') @@ -32,26 +35,40 @@ server.get('/posts', (req, res) => { }) }) -server.post('/', express.urlencoded({ extended: false }), (req, res) => { +server.post('/', express.urlencoded({ extended: false }), async (req, res) => { const nickname = req.body.nickname const message = req.body.message const errors = {} + if (!nickname) { errors.nickname = 'Please enter your nickname' } + if (!message) { errors.message = 'Please enter a message' } - if (Object.keys(errors).length) { + + if (Object.keys(errors).length === 0) { + // Check for moderation flags + const flaggedCategories = await moderate(message) + if (flaggedCategories.length > 0) { + // Add moderation error + const formattedCategories = formatListWithAnd(flaggedCategories) + errors.message = `Post flagged for: ${formattedCategories} content. It won't be posted.` + } + } + + if (Object.keys(errors).length > 0) { + // Render form with errors res.render('formPage', { title: 'New Post', sanitize: sanitize, - values: req.body || {}, + values: req.body, errors: errors, }) } else { + // Create and add the post const created = Date.now() - //Create a random unique ID const id = uuidv4() posts.push({ nickname, message, created, id }) res.redirect('/posts') diff --git a/views/formPage.ejs b/views/formPage.ejs index d59f7bc..587dd7a 100644 --- a/views/formPage.ejs +++ b/views/formPage.ejs @@ -9,7 +9,7 @@

<% if (errors.nickname) { %>