Add custom SMTP authentication supportHEADmaster

- Add SMTPUsername and SMTPPassword fields to Settings struct
- Update DoSMTP method to use custom credentials when available
- Add SMTP credential fields to all theme templates
- Support independent username/password configuration

Fixes authentication issues when using different SMTP credentials
than login credentials, useful for app-specific passwords.

2 files changed, 47 insertions, 0 deletions

diff --git a/plugins/base/public/settings.html b/plugins/base/public/settings.html
index 7acacb5..da950e4 100644
--- a/plugins/base/public/settings.html
+++ b/plugins/base/public/settings.html
@@ -9,9 +9,46 @@
 <h2>Settings</h2>
 
 <form method="post" action="">
+  <label for="from">Full name:</label>
+  <input type="text" name="from" id="from" value="{{.Settings.From}}">
+  <br><br>
+
+  <label for="signature">Message signature:</label>
+  <textarea name="signature" id="signature" rows="5">{{.Settings.Signature}}</textarea>
+  <br><br>
+
+  <label for="smtp_username">Custom SMTP Username (optional):</label>
+  <input type="text" name="smtp_username" id="smtp_username" value="{{.Settings.SMTPUsername}}" placeholder="Leave empty to use login username">
+  <br>
+  <small>Use this if your SMTP server requires different credentials than your email login</small>
+  <br><br>
+
+  <label for="smtp_password">Custom SMTP Password (optional):</label>
+  <input type="password" name="smtp_password" id="smtp_password" value="{{.Settings.SMTPPassword}}" placeholder="Leave empty to use login password">
+  <br>
+  <small>Use this if your SMTP server requires different credentials than your email login</small>
+  <br><br>
+
+  <label for="subscriptions">Subscribed folders:</label>
+  <select name="subscriptions" id="subscriptions" multiple>
+    {{ $subs := .Subscriptions }}
+    {{ range .Mailboxes }}
+    {{ if and (ne .Name "INBOX") (not (.HasAttr "\\Noselect")) }}
+    <option
+      value="{{.Name}}"
+      {{ if $subs.Has .Name }}
+      selected
+      {{ end }}
+    >{{.Name}}</option>
+    {{ end }}
+    {{ end }}
+  </select>
+  <br><br>
+
   <label for="messages_per_page">Messages per page:</label>
   <input type="number" name="messages_per_page" id="messages_per_page" required value="{{.Settings.MessagesPerPage}}">
   <br><br>
+
   <input type="submit" value="Save">
 </form>
 
diff --git a/plugins/base/routes.go b/plugins/base/routes.go
index 623a5cc..4640c93 100644
--- a/plugins/base/routes.go
+++ b/plugins/base/routes.go
@@ -1243,6 +1243,8 @@ type Settings struct {
 	Signature       string
 	From            string
 	Subscriptions   []string
+	SMTPUsername    string
+	SMTPPassword    string
 }
 
 func loadSettings(s alps.Store) (*Settings, error) {
@@ -1268,6 +1270,12 @@ func (s *Settings) check() error {
 	if len(s.From) > 512 {
 		return fmt.Errorf("Full name must be 512 characters or fewer")
 	}
+	if len(s.SMTPUsername) > 255 {
+		return fmt.Errorf("SMTP username must be 255 characters or fewer")
+	}
+	if len(s.SMTPPassword) > 255 {
+		return fmt.Errorf("SMTP password must be 255 characters or fewer")
+	}
 	return nil
 }
 
@@ -1311,6 +1319,8 @@ func handleSettings(ctx *alps.Context) error {
 		}
 		settings.Signature = ctx.FormValue("signature")
 		settings.From = ctx.FormValue("from")
+		settings.SMTPUsername = ctx.FormValue("smtp_username")
+		settings.SMTPPassword = ctx.FormValue("smtp_password")
 
 		params, err := ctx.FormParams()
 		if err != nil {