api,frontend: add unsubscribe

api/email_update.go

@@ -0,0 +1,39 @@
+package main
+
+import (
+	"net/http"
+)
+
+func emailUpdate(e email) error {
+	statement := `
+		UPDATE emails
+		SET sendReplyNotifications = $3, sendModeratorNotifications = $4
+		WHERE email = $1 AND unsubscribeSecretHex = $2;
+	`
+	_, err := db.Exec(statement, e.Email, e.UnsubscribeSecretHex, e.SendReplyNotifications, e.SendModeratorNotifications)
+	if err != nil {
+		logger.Errorf("error updating email: %v", err)
+		return errorInternal
+	}
+
+	return nil
+}
+
+func emailUpdateHandler(w http.ResponseWriter, r *http.Request) {
+	type request struct {
+		Email *email `json:"email"`
+	}
+
+	var x request
+	if err := bodyUnmarshal(r, &x); err != nil {
+		bodyMarshal(w, response{"success": false, "message": err.Error()})
+		return
+	}
+
+	if err := emailUpdate(*x.Email); err != nil {
+		bodyMarshal(w, response{"success": true, "message": err.Error()})
+		return
+	}
+
+	bodyMarshal(w, response{"success": true})
+}