Hours by client: add search and CSV filtering; add alerts cron (BRT 08:00 guard) + alerts panel filters; admin companies shows last alert; PDF Inter font from public/fonts; fix Select empty value; type cleanups; tests for CSV/TZ; remove Knowledge Base nav

src/server/email-smtp.ts

@@ -0,0 +1,69 @@
+import tls from "tls"
+
+type SmtpConfig = {
+  host: string
+  port: number
+  username: string
+  password: string
+  from: string
+}
+
+function b64(input: string) {
+  return Buffer.from(input, "utf8").toString("base64")
+}
+
+export async function sendSmtpMail(cfg: SmtpConfig, to: string, subject: string, html: string) {
+  return new Promise<void>((resolve, reject) => {
+    const socket = tls.connect(cfg.port, cfg.host, { rejectUnauthorized: false }, () => {
+      let buffer = ""
+      const send = (line: string) => socket.write(line + "\r\n")
+      const wait = (expected: string | RegExp) =>
+        new Promise<void>((res, rej) => {
+          const onData = (data: Buffer) => {
+            buffer += data.toString()
+            const lines = buffer.split(/\r?\n/)
+            const last = lines.filter(Boolean).slice(-1)[0] ?? ""
+            if (typeof expected === "string" ? last.startsWith(expected) : expected.test(last)) {
+              socket.removeListener("data", onData)
+              res()
+            }
+          }
+          socket.on("data", onData)
+          socket.on("error", rej)
+        })
+
+      ;(async () => {
+        await wait(/^220 /)
+        send(`EHLO ${cfg.host}`)
+        await wait(/^250-/)
+        await wait(/^250 /)
+        send("AUTH LOGIN")
+        await wait(/^334 /)
+        send(b64(cfg.username))
+        await wait(/^334 /)
+        send(b64(cfg.password))
+        await wait(/^235 /)
+        send(`MAIL FROM:<${cfg.from.match(/<(.+)>/)?.[1] ?? cfg.from}>`)
+        await wait(/^250 /)
+        send(`RCPT TO:<${to}>`)
+        await wait(/^250 /)
+        send("DATA")
+        await wait(/^354 /)
+        const headers = [
+          `From: ${cfg.from}`,
+          `To: ${to}`,
+          `Subject: ${subject}`,
+          "MIME-Version: 1.0",
+          "Content-Type: text/html; charset=UTF-8",
+        ].join("\r\n")
+        send(headers + "\r\n\r\n" + html + "\r\n.")
+        await wait(/^250 /)
+        send("QUIT")
+        socket.end()
+        resolve()
+      })().catch(reject)
+    })
+    socket.on("error", reject)
+  })
+}
+