send simple test email to my email on server startup

send all emails as HTML
add email config to config file
2026-04-13 09:32:22 -04:00 · 2026-04-13 09:22:57 -04:00 · 2026-04-13 09:19:35 -04:00 · 2026-04-13 09:13:49 -04:00 · 2026-04-09 16:45:02 -04:00
6 changed files with 112 additions and 13 deletions
@@ -12,6 +12,14 @@
    "logo_path": "./data/astraltech_logo_large.png"
  },
  "server_config": {
-    "port": 8080
+    "port": 8080,
+    "base_url": "https://profile.example.com"
+  },
+  "email_config": {
+    "username": "noreply",
+    "email": "noreply@example.com",
+    "password": "",
+    "smtp_url": "mx.example.com",
+    "smtp_port": 587
  }
 }
@@ -0,0 +1,25 @@
+<!doctype html>
+<html lang="en">
+    <head>
+        <meta charset="UTF-8" />
+        <title>Hi</title>
+        <style>
+            body {
+                font-family: Arial, sans-serif;
+                text-align: center;
+                margin-top: 50px;
+            }
+            img {
+                margin-top: 20px;
+                width: 150px;
+                height: 150px;
+                border-radius: 50%;
+            }
+        </style>
+    </head>
+    <body>
+        <h1>Hi {{.Username}}</h1>
+
+        <img src="{{avatar .Username}}" alt="Profile Picture" />
+    </body>
+</html>
@@ -16,35 +16,38 @@ type EmailAccount struct {
 }

 type EmailAccountData struct {
-	username string
-	password string
-	email    string
+	Username string
+	Password string
+	Email    string
 }

-func createEmailAccount(accountData EmailAccountData, smtpHost string, smtpPort int) EmailAccount {
-	logging.Debugf("Creating Email Account: \n\tUsername: %s\n\tEmail: %s\n\tSMTP Host: %s:%d", accountData.username, accountData.email, smtpHost, smtpPort)
+func CreateEmailAccount(accountData EmailAccountData, smtpHost string, smtpPort int) EmailAccount {
+	logging.Debugf("Creating Email Account: \n\tUsername: %s\n\tEmail: %s\n\tSMTP Host: %s:%d", accountData.Username, accountData.Email, smtpHost, smtpPort)
 	account := EmailAccount{
-		email:    accountData.email,
+		email:    accountData.Email,
 		smtpHost: smtpHost,
 		smtpPort: strconv.Itoa(smtpPort),
 	}
-	account.auth = smtp.PlainAuth("", accountData.username, accountData.password, smtpHost)
+	account.auth = smtp.PlainAuth("", accountData.Username, accountData.Password, smtpHost)
 	return account
 }

-func sendEmail(account EmailAccount, toEmail []string, subject string, message string) {
-	logging.Debugf("Sending an email from %s to %s", account.email, strings.Join(toEmail, ""))
+func (account *EmailAccount) SendEmail(toEmails []string, subject string, message string) {
+	logging.Debugf("Sending an email from %s to %s", account.email, strings.Join(toEmails, ""))

-	ToEmailList := strings.Join(toEmail, "")
+	ToEmailList := strings.Join(toEmails, "")
+
+	mime := "MIME-version: 1.0;\r\nContent-Type: text/html; charset=\"UTF-8\";\r\n\r\n"

 	messageData := []byte(
 		"From: " + account.email + "\r\n" +
 			"To: " + ToEmailList + "\r\n" +
 			"Subject: " + subject + "\r\n" +
+			mime +
 			"\r\n" +
 			message,
 	)
-	err := smtp.SendMail(account.smtpHost+":"+account.smtpPort, account.auth, account.email, toEmail, messageData)
+	err := smtp.SendMail(account.smtpHost+":"+account.smtpPort, account.auth, account.email, toEmails, messageData)
 	if err != nil {
 		logging.Error("Failed to send email")
 		logging.Error(err.Error())
@@ -0,0 +1,28 @@
+package email
+
+import (
+	"bytes"
+	"path/filepath"
+	"text/template"
+)
+
+func RenderTemplate(path string, data any, funcMap template.FuncMap) (string, error) {
+	tmpl := template.New("")
+
+	if funcMap != nil {
+		tmpl = tmpl.Funcs(funcMap)
+	}
+
+	tmpl, err := tmpl.ParseFiles(path)
+	if err != nil {
+		return "", err
+	}
+
+	var buf bytes.Buffer
+	err = tmpl.ExecuteTemplate(&buf, filepath.Base(path), data)
+	if err != nil {
+		return "", err
+	}
+
+	return buf.String(), nil
+}
@@ -22,13 +22,23 @@ type StyleConfig struct {
 }

 type WebserverConfig struct {
-	Port int `json:"port"`
+	Port    int    `json:"port"`
+	BaseURL string `json:"base_url"`
+}
+
+type EmailConfig struct {
+	Username string `json:"username"`
+	Email    string `json:"email"`
+	Password string `json:"password"`
+	SMTPURL  string `json:"smtp_url"`
+	SMTPPort int    `json:"smtp_port"`
 }

 type ServerConfig struct {
 	LDAPConfig      LDAPConfig      `json:"ldap_config"`
 	StyleConfig     StyleConfig     `json:"style_config"`
 	WebserverConfig WebserverConfig `json:"server_config"`
+	EmailConfig     EmailConfig     `json:"email_config"`
 }

 func loadServerConfig(path string) (*ServerConfig, error) {
@@ -5,10 +5,12 @@ import (
 	"html/template"
 	"log"
 	"net/http"
+	"net/url"
 	"strings"
 	"sync"

 	"astraltech.xyz/accountmanager/src/components"
+	"astraltech.xyz/accountmanager/src/email"
 	"astraltech.xyz/accountmanager/src/helpers"
 	"astraltech.xyz/accountmanager/src/ldap"
 	"astraltech.xyz/accountmanager/src/logging"
@@ -19,6 +21,7 @@ var (
 	ldapServer     ldap.LDAPServer
 	serverConfig   *ServerConfig
 	sessionManager *session.SessionManager
+	noReplyEmail   email.EmailAccount
 )

 type UserData struct {
@@ -250,6 +253,28 @@ func main() {
 		log.Fatal("Could not load server config")
 	}

+	noReplyEmail = email.CreateEmailAccount(email.EmailAccountData{
+		Username: serverConfig.EmailConfig.Username,
+		Password: serverConfig.EmailConfig.Password,
+		Email:    serverConfig.EmailConfig.Email,
+	}, serverConfig.EmailConfig.SMTPURL, serverConfig.EmailConfig.SMTPPort)
+
+	funcs := template.FuncMap{
+		"avatar": func(username string) string {
+			return serverConfig.WebserverConfig.BaseURL + "/avatar?user=" + url.QueryEscape(username)
+		},
+	}
+
+	data := map[string]any{
+		"Username": "gawells",
+	}
+
+	email_template, err := email.RenderTemplate("./data/email-templates/expired-password.html", data, funcs)
+	if err != nil {
+		logging.Errorf("Failed to load email template: %s", err.Error())
+	}
+	noReplyEmail.SendEmail([]string{"gawells@astraltech.xyz"}, "Test", email_template)
+
 	ldapServer = ldap.LDAPServer{
 		URL:                serverConfig.LDAPConfig.LDAPURL,
 		StartTLS:           serverConfig.LDAPConfig.Security == "tls",
Author	SHA1	Message	Date
gawells	6a985c1a84	send simple test email to my email on server startup	2026-04-13 09:32:22 -04:00
gawells	590ea73a92	send all emails as HTML	2026-04-13 09:22:57 -04:00
gawells	8de145adbc	add email config to config file	2026-04-13 09:19:35 -04:00
gawells	8f0291bb8a	make small changes to the email package	2026-04-13 09:13:49 -04:00
gawells	cde41b82b2	base URL param for config	2026-04-09 16:45:02 -04:00