restructure stuff, add logging, use node 20

2025-12-17 04:00:59 +00:00 · 2023-10-23 22:54:08 +02:00
parent acfa8461e5
commit 5323504a87
11 changed files with 16 additions and 18 deletions
--- a/index.js
+++ b/index.js
@@ -0,0 +1,101 @@
+import express from 'express'
+import path from 'path'
+import qrcode from 'qrcode'
+import cors from 'cors'
+import { dirname } from 'path'
+import { fileURLToPath } from 'url'
+
+const app = express()
+const __dirname = dirname(fileURLToPath(import.meta.url))
+
+app.use(cors())
+app.use('/public', express.static('public'))
+
+app.set('views', path.join(__dirname, 'views'))
+app.set('view engine', 'ejs')
+
+app.get('/', (req, res) => res.render('index'))
+app.get('/healthcheck', (req, res) => res.send({ ok: true, pod: process.env.POD_NAME }))
+app.get('/form', (req, res) => res.render('form', { q: req.query }))
+
+app.get('/api/qrcode', async (req, res) => {
+    console.log(`/api/qrcode "${req.query['client_name']}" "${req.query['client_address']}" "${req.query['client_city']}" "${req.query['amount']}" "${req.query['payment_purpose']}" "${req.query['iban']}" "${req.query['reference']}" "${req.query['issuer_name']}" "${req.query['issuer_address']}" "${req.query['issuer_city']}"`)
+    const errors = []
+
+    function check (name, rgxp) {
+        if (!req.query[name]) errors.push(`${name} is required`)
+        else {
+            req.query[name] = decodeURIComponent(String(req.query[name])).trim()
+            if (!String(req.query[name]).match(rgxp)) {
+                errors.push(`${name} does not match the required format`)
+            }
+        }
+    }
+
+    check('client_name', /^[a-zA-Z0-9ČŠŽĐ'](?:[A-Z0-9 ČŠŽĐ']{0,31}[A-Z0-9ČŠŽĐ'])?$/i)
+    check('client_address', /^[a-zA-Z0-9ČŠŽĐ](?:[A-Z0-9 ČŠŽĐ]{0,31}[A-Z0-9ČŠŽĐ])?$/i)
+    check('client_city', /^[a-zA-Z0-9ČŠŽĐ](?:[A-Z0-9 ČŠŽĐ]{0,31}[A-Z0-9ČŠŽĐ])?$/i)
+    check('amount', /^(?=.{11}$)[0]{1,11}[0-9]{0,11}$/)
+    check('payment_purpose', /^.{1,42}$/i)
+    check('iban', /^[A-Z]{2}\d{17}$/)
+    check('reference', /^[A-Z]{2}[0-9\-]{1,24}$/)
+    check('issuer_name', /^[a-zA-Z0-9ČŠŽĐ.'](?:[A-Z0-9 ČŠŽĐ.'\-]{0,31}[A-Z0-9ČŠŽĐ.'])?$/i)
+    check('issuer_address', /^[a-zA-Z0-9ČŠŽĐ](?:[A-Z0-9 ČŠŽĐ\-.]{0,31}[A-Z0-9ČŠŽĐ])?$/i)
+    check('issuer_city', /^[a-zA-Z0-9ČŠŽĐ](?:[A-Z0-9 ČŠŽĐ]{0,31}[A-Z0-9ČŠŽĐ])?$/i)
+
+    // SET DEFAULT PURPOSE_CODE
+    if (!req.query.purpose_code) req.query.purpose_code = "OTHR"
+    else {
+        if (!String(req.query.purpose_code).match(/^[A-Z]{4}$/)) {
+            errors.push("purpose_code does not match the required format")
+        }
+    }
+
+    // DEADLINE is optional
+    if (req.query.deadline ) {
+        if(!String(req.query.deadline).match(/^[0-9]{2}\.[0-9]{2}\.[0-9]{4}$/)) {
+            errors.push("deadline does not match the required format")
+        }
+    } else {
+        req.query.deadline = ""
+    }
+
+    if (errors.length > 0) return res.status(400).send({
+        ok: false,
+        errors
+    })
+
+    let text = `UPNQR
+
+
+
+
+${String(req.query.client_name).toUpperCase()}
+${String(req.query.client_address).toUpperCase()}
+${String(req.query.client_city).toUpperCase()}
+${req.query.amount}
+
+
+${String(req.query.purpose_code).toUpperCase()}
+${String(req.query.payment_purpose).toUpperCase()}
+${req.query.deadline}
+${req.query.iban}
+${req.query.reference}
+${String(req.query.issuer_name).toUpperCase()}
+${String(req.query.issuer_address).toUpperCase()}
+${String(req.query.issuer_city).toUpperCase()}`
+
+    text = `${text}\n${text.length + 1}`
+
+    const code = await qrcode.toDataURL(text, { errorCorrectionLevel: 'H' })
+
+    var img = new Buffer.from(code.split(',')[1], 'base64')
+    res.writeHead(200, {
+      'Content-Type': 'image/png',
+      'Content-Length': img.length 
+    })
+    res.end(img)
+
+})
+
+app.listen(process.env.PORT || 80, () => console.log(`UPN-QR started on port ${process.env.PORT || 80}`))