From b2634304be63ff622a850e114687b0154e3392b1 Mon Sep 17 00:00:00 2001
From: Rohan Sunar <rohan@Rohans-MacBook-Pro.local>
Date: Wed, 19 Nov 2025 18:13:52 +0545
Subject: [PATCH] fix: fix the verification link for accounts with slug

---
 .../sendEmailVerificationEmail.ts             | 116 ++++++++++++------
 1 file changed, 79 insertions(+), 37 deletions(-)

diff --git a/packages/fastify/src/supertokens/recipes/email-verification/sendEmailVerificationEmail.ts b/packages/fastify/src/supertokens/recipes/email-verification/sendEmailVerificationEmail.ts
index f05283fb..c242881a 100644
--- a/packages/fastify/src/supertokens/recipes/email-verification/sendEmailVerificationEmail.ts
+++ b/packages/fastify/src/supertokens/recipes/email-verification/sendEmailVerificationEmail.ts
@@ -5,62 +5,104 @@ import {
 } from "@prefabs.tech/fastify-user";
 import emailVerification from "supertokens-node/recipe/emailverification";
 
+import getSaasConfig from "../../../config";
 import Email from "../../utils/email";
 
+import type { Account } from "../../../types";
 import type { FastifyInstance, FastifyRequest } from "fastify";
 import type { EmailDeliveryInterface } from "supertokens-node/lib/build/ingredients/emaildelivery/types";
 import type { TypeEmailVerificationEmailDeliveryInput } from "supertokens-node/recipe/emailverification/types";
 
+const getProtocol = (
+  request: FastifyRequest | undefined,
+  fallback: string,
+  configuredProtocol?: string,
+) => {
+  if (request?.protocol) {
+    return request.protocol;
+  }
+
+  if (configuredProtocol) {
+    return configuredProtocol;
+  }
+
+  try {
+    return new URL(fallback).protocol.replace(":", "");
+  } catch {
+    return "https";
+  }
+};
+
 const sendEmailVerificationEmail = (
   originalImplementation: EmailDeliveryInterface<TypeEmailVerificationEmailDeliveryInput>,
   fastify: FastifyInstance,
 ): typeof emailVerification.sendEmail => {
   const websiteDomain = fastify.config.appOrigin[0] as string;
+  const saasConfig = getSaasConfig(fastify.config);
 
   return async (input) => {
     let origin: string;
+    let request: FastifyRequest | undefined;
 
     try {
-      const request: FastifyRequest =
-        input.userContext._default.request.request;
-      try {
-        const url =
-          request.headers.referer || request.headers.origin || request.hostname;
-
-        origin = getOrigin(url) || websiteDomain;
-      } catch {
-        origin = websiteDomain;
-      }
-
-      const emailVerifyLink = input.emailVerifyLink.replace(
-        websiteDomain + "/auth/verify-email",
-        origin +
-          (fastify.config.user.supertokens.emailVerificationPath ||
-            EMAIL_VERIFICATION_PATH),
-      );
-
-      let email = input.user.email;
+      request = input.userContext._default.request.request;
+    } catch {
+      request = undefined;
+    }
 
-      email = Email.removePrefix(email, request.authEmailPrefix);
+    try {
+      const url =
+        (request?.headers?.referer as string | undefined) ||
+        (request?.headers?.origin as string | undefined) ||
+        request?.hostname ||
+        "";
+
+      origin = getOrigin(url) || websiteDomain;
+    } catch {
+      origin = websiteDomain;
+    }
+
+    const requestAccount =
+      (request?.account as Account | undefined) ||
+      (input.userContext?.account as Account | undefined);
+    const protocol = getProtocol(
+      request,
+      websiteDomain,
+      fastify.config.protocol as string | undefined,
+    );
+
+    if (requestAccount?.domain) {
+      origin = `${protocol}://${requestAccount.domain}`;
+    } else if (requestAccount?.slug && saasConfig.rootDomain) {
+      origin = `${protocol}://${requestAccount.slug}.${saasConfig.rootDomain}`;
+    }
 
-      sendEmail({
-        fastify,
-        subject:
-          fastify.config.user.emailOverrides?.emailVerification?.subject ||
-          "Email Verification",
-        templateName:
-          fastify.config.user.emailOverrides?.emailVerification?.templateName ||
-          "email-verification",
-        to: email,
-        templateData: {
-          emailVerifyLink,
-        },
-      });
-    } catch (error: unknown) {
-      if (error instanceof Error) {
-        fastify.log.error(error.message);
-      }
+    const emailVerifyLink = input.emailVerifyLink.replace(
+      websiteDomain + "/auth/verify-email",
+      origin +
+        (fastify.config.user.supertokens.emailVerificationPath ||
+          EMAIL_VERIFICATION_PATH),
+    );
+
+    let email = input.user.email;
+
+    if (request) {
+      email = Email.removePrefix(email, request.authEmailPrefix);
     }
+
+    sendEmail({
+      fastify,
+      subject:
+        fastify.config.user.emailOverrides?.emailVerification?.subject ||
+        "Email Verification",
+      templateName:
+        fastify.config.user.emailOverrides?.emailVerification?.templateName ||
+        "email-verification",
+      to: email,
+      templateData: {
+        emailVerifyLink,
+      },
+    });
   };
 };