From c42928f26d79d56412d87673c7b828fbcb125d94 Mon Sep 17 00:00:00 2001
From: Kyle Spearrin <kyle.spearrin@gmail.com>
Date: Fri, 10 Nov 2017 09:21:44 -0500
Subject: [PATCH] prevent duplicate invite accepts

---
 src/Core/Services/Implementations/OrganizationService.cs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/Core/Services/Implementations/OrganizationService.cs b/src/Core/Services/Implementations/OrganizationService.cs
index 0980c6ea5..222e32539 100644
--- a/src/Core/Services/Implementations/OrganizationService.cs
+++ b/src/Core/Services/Implementations/OrganizationService.cs
@@ -940,6 +940,12 @@ namespace Bit.Core.Services
                 }
             }
 
+            var existingOrgUser = await _organizationUserRepository.GetByOrganizationAsync(orgUser.OrganizationId, user.Email);
+            if(existingOrgUser != null)
+            {
+                throw new BadRequestException("You are already part of this organization.");
+            }
+
             var tokenValidationFailed = true;
             try
             {